CN117739500A - Water power balance adjusting method for heating ventilation air conditioner and energy saving control system - Google Patents
Water power balance adjusting method for heating ventilation air conditioner and energy saving control system Download PDFInfo
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Abstract
The invention discloses a water power balance adjusting method for a heating ventilation air conditioner and an energy saving control system, which belong to the field of heating ventilation, and the water power balance adjusting method for the heating ventilation air conditioner comprises the following steps: s1, system design analysis; s2, calculating water flow requirements; s3, selecting a regulating valve, and selecting the regulating valve according to the calculated water flow demand; s4, installing a regulating valve, and installing the regulating valve on each branch; s5, preliminary adjustment; s6, balancing the system, and repeatedly adjusting the regulating valve through in-situ testing and monitoring of the system performance to ensure that water flow in the system is uniformly distributed among all branches; s7, periodically checking and adjusting the new system to adopt a multi-module design, wherein the multi-module design comprises a flow adjusting module, a pressure adjusting module and the like, so that the system is more flexible, maintainable and upgradeable.
Description
Technical Field
The invention relates to the field of heating ventilation and air conditioning, in particular to a water power balance adjusting method for heating ventilation and air conditioning and an energy saving control system.
Background
The traditional hydraulic balance adjusting method for the heating ventilation air conditioner calculates the water flow demand through careful analysis of system design, and installs an adjusting valve, so that the uniform distribution of water flow among all branches of the system is realized. The method ensures that the water flow of the water supply side and the water return side meet the design requirements, and improves the overall performance and energy efficiency of the system. By selecting the appropriate regulator valve and making the preliminary adjustments, the system can achieve optimal hydraulic balance during operation. This helps to reduce energy consumption, increase equipment life, and ensure reliable operation of the system under different load conditions. The hydraulic balance of the system is maintained by regular inspection and adjustment, so that the system is adapted to the system change, and the high efficiency and consumption ratio is maintained. The traditional method provides a stable, reliable and energy-saving operation environment for the heating ventilation and air conditioning system.
The traditional hydraulic balance adjusting method for heating ventilation air conditioner has some defects. First, this approach typically relies on manual adjustment of the valve, requiring cumbersome adjustments by experienced engineers, which can result in inaccurate, time-consuming and complex adjustments. Secondly, the hydraulic balance of the system may fail after equipment replacement or system change, requiring periodic inspection and adjustment, increasing maintenance costs. In addition, the response of the traditional method to the system change is relatively slow, and the load fluctuation cannot be adapted in real time, so that the system can not operate flexibly. Finally, traditional hydraulic balance adjustment methods can be challenging when dealing with large-scale systems or complex networks, as manual adjustment can become more difficult in these situations. In combination, the traditional approach suffers from some drawbacks in terms of automation, flexibility and adaptability, requiring more intelligent and automated solutions.
Disclosure of Invention
The technical problems to be solved are as follows: the traditional hydraulic balance adjusting method for heating ventilation air conditioner has some defects. First, this approach typically relies on manual adjustment of the valve, requiring cumbersome adjustments by experienced engineers, which can result in inaccurate, time-consuming and complex adjustments. Secondly, the hydraulic balance of the system may fail after equipment replacement or system change, requiring periodic inspection and adjustment, increasing maintenance costs. In addition, the response of the traditional method to the system change is relatively slow, and the load fluctuation cannot be adapted in real time, so that the system can not operate flexibly. Finally, traditional hydraulic balance adjustment methods can be challenging when dealing with large-scale systems or complex networks, as manual adjustment can become more difficult in these situations. In combination, the traditional approach suffers from some drawbacks in terms of automation, flexibility and adaptability, requiring more intelligent and automated solutions.
The technical scheme is as follows:
the water power balance adjusting method for the heating ventilation air conditioner comprises the following steps of:
s1, system design analysis, wherein in the system design stage, the system is firstly analyzed, including pipeline layout, branch length, equipment type and position, and the water flow requirement of each branch and the overall hydraulic characteristic of the system are determined;
s2, calculating water flow requirements, wherein the water flow requirements of each branch comprise water flow of a water supply side and a water return side according to the design requirements of each branch and the water flow requirements of equipment;
s3, selecting a regulating valve, and selecting the regulating valve according to the calculated water flow demand;
the regulating valve is used for regulating water flow and meeting the requirements of each branch;
s4, installing regulating valves, wherein the regulating valves are installed on each branch, so that the regulating valves can be used for regulating water flow according to the water flow, and the regulating valves comprise a one-way valve, a manual regulating valve and an automatic regulating valve;
s5, preliminary adjustment is carried out, the system is opened, and preliminary adjustment is carried out, wherein the preliminary adjustment comprises the step of gradually adjusting the adjusting valve on each branch so as to meet the design water flow requirement;
using a flow meter tool to monitor and adjust water flow;
s6, balancing the system, and repeatedly adjusting the regulating valve through in-situ testing and monitoring of the system performance to ensure that water flow in the system is uniformly distributed among all branches;
S7, periodically checking and adjusting, and periodically checking the performance of the system after the system is put into operation, particularly when the system changes, including equipment replacement and pipeline change;
the regulator valve is adjusted in special cases to maintain the hydraulic balance of the system.
Preferably, the S1 system design analysis includes the steps of:
s1-1, acquiring a design document, and collecting a system design document, wherein the system design document comprises a pipeline layout diagram, an equipment position diagram and a branch length table;
the document provides the basic structure and design parameters of the system;
s1-2, examining a pipeline layout diagram, analyzing the pipeline layout diagram, knowing the trend, branching condition and connecting equipment position of a main pipeline, and considering the number of straight line sections and elbows of the pipeline and the influence of the straight line sections and the elbows on fluid flow;
s1-3, considering the diameter and the material of the pipeline, and evaluating the diameter and the material of the pipeline according to the system requirement and the flow calculation, so that the pipeline can meet the design requirement, and the problems of overlarge and undersize are avoided;
s1-4, analyzing the length of the branches, checking a branch length table, and knowing the length of each branch;
the longer branch has additional hydraulic balance and adjustment, while the shorter branch has influence on the system performance;
s1-5, evaluating the position of equipment, checking an equipment position diagram, and knowing the positions of all key equipment, including a pump, a regulating valve and a heat exchanger;
S1-6, confirming the type and specification of equipment and confirming the type and specification of various equipment used in the system; different types and specifications of equipment have different requirements for hydraulic balance and adjustment;
s1-7, calculating and evaluating the flow velocity and pressure loss of each pipeline section in the system by taking the flow velocity and pressure loss into consideration;
s1-8, analyzing the interaction of equipment, wherein the interaction of equipment is considered, and the interaction comprises the cooperation between the pump and the regulating valve; ensuring that the selection and arrangement of the equipment does not result in unnecessary pressure loss and system imbalance;
s1-9, simulating the running condition of the system, and predicting the water flow and pressure distribution under different working conditions by using hydraulic simulation software and tools;
s1-10, identifying potential problem areas, identifying areas with uneven water flow, excessive pressure loss and other problems according to analysis results, and performing additional adjustment and optimization;
s1-11, providing improvement suggestions, and based on analysis results, providing improvement suggestions of pipeline layout, branch length, equipment position and equipment specification, wherein the improvement suggestions comprise redesigning the pipeline layout, adjusting the equipment position and replacing the equipment specification;
s1-12, periodically updating analysis, and periodically updating analysis on pipeline layout, branch length, equipment type and position during system operation and maintenance.
Preferably, the S2 water flow calculation includes the following steps:
s2-1, collecting system information, and acquiring design parameters of a system, wherein the design parameters comprise branch length, pipeline diameter, equipment type and quantity;
the branch length, the pipe diameter, the equipment type and the number are contained in a system design document;
s2-2, determining the maximum demands of the branches, and determining the maximum water flow demands under the most unfavorable conditions and the conditions under the maximum load, the most far end and other design conditions for each branch;
s2-3, considering additional requirements, and considering any additional requirements, including future system expansion and standby equipment operation; ensuring that the calculation of the water flow requirement has certain redundancy and adapting to future changes;
s2-4, calculating total water flow requirements, and summing the maximum water flow requirements of all branches in the system to obtain the total water flow requirements of the system;
s2-5, determining a design flow rate, and calculating the design flow rate according to system parameters and the total water flow demand;
the design flow rate is within a range that maintains normal operation within the conduit to ensure that the water flow does not cause excessive frictional losses;
s2-6, checking the diameter of the pipeline, and selecting the diameter of the pipeline according to the design flow rate and system parameters;
Ensuring that the selected pipe diameter meets flow rate and water flow requirements;
s2-7, verifying the feasibility of the system, and comparing the calculated water flow demand with the performance parameters of the system components including the pump and the regulating valve to ensure the feasibility and the stability of the system;
s2-8, adjusting and optimizing, and if the calculated water flow requirement exceeds the capacity of the system components, adjusting the system design, replacing equipment and optimizing the pipeline layout.
Preferably, the S3 regulating valve is remotely monitored and operated, and remote monitoring and operating functions are integrated, so that an engineer remotely monitors and adjusts parameters of the regulating valve;
the regulating valve integrates an energy consumption optimization algorithm, so that the regulating valve can minimize energy consumption under different load conditions, and the opening degree of the valve is dynamically adjusted to match actual demands instead of a static set value;
the regulating valve is regulated by modularized management.
Preferably, the integrated remote monitoring and operating function comprises the steps of:
s3-1-1, demand analysis, namely determining specific demands of remote monitoring and operation; explicitly monitored parameters, control functions and security and permission requirements for remote access;
s3-1-2, selecting a communication technology, wherein the communication technology comprises the Internet, a local area network and a wireless network;
S3-1-3, connecting equipment, namely installing hardware equipment, wherein the hardware equipment comprises a sensor, an actuator and a remote communication module, and connecting the equipment to a network, wherein the upgrading of the existing equipment and the purchase of new equipment are included;
s3-1-4, data acquisition and transmission, developing and selecting a data acquisition and transmission system, and collecting real-time data from the equipment, wherein the real-time data comprises sensor data and equipment states;
s3-1-5, deploying a remote monitoring system, wherein the deploying remote monitoring system comprises a monitoring server and corresponding software;
the remote monitoring system receives, stores and processes the data transmitted from the equipment;
s3-1-6, implementing a remote control function, developing and configuring the remote control function, ensuring that the operation of equipment is realized through a remote monitoring system, taking security measures into consideration, and avoiding unauthorized access;
s3-1-7, designing a user interface, namely designing a user-friendly remote monitoring and operation interface, a webpage interface, a mobile application and other customized user interfaces;
s3-1-8, security and authority control, implementing security measures including encrypted communication, authentication and access control to ensure that only authorized users can access and control the device;
s3-1-9, testing and verifying the system before actual operation, so as to ensure that the remote monitoring and operation functions can reliably operate under different network conditions;
S3-1-10, training and documentation, providing training and documentation to ensure that equipment operators and system administrators know how to use remote monitoring and operation functions;
s3-1-11, continuous maintenance and upgrading, and establishing a continuous maintenance plan to monitor the system performance, solve the potential problems and upgrade at the time.
Preferably, the modular design comprises the steps of:
s3-2-1, analyzing the system, carrying out detailed analysis on the whole system, and determining the functions and the requirements of the system;
s3-2-module division, namely dividing the system into a flow regulating module, a pressure regulating module, a regulating valve module, a sensor module, a control module, a communication module, a data recording and analyzing module and a maintenance module according to the functions and requirements of the system;
each module is relatively independent and is responsible for executing a specific function and task;
s3-2-defining an interface, determining an interface between modules, wherein the interface comprises an input interface, an output interface and a communication interface;
s3-2-3, determining module functions, defining functions and responsibilities for each module clearly, wherein the functions of each module are clear, and overlapping of the functions is avoided;
s3-2-4, standardized interfaces and protocols are adopted, and standardized interfaces and communication protocols are adopted among the modules, so that seamless integration among different modules can be realized;
S3-2-5, designing the modules in detail, wherein each module comprises implementation details in the module, and all parts in the module can cooperate to realize the functions of the module;
s3-2-6, independently testing each module, and verifying the functions and performances of the modules;
s3-2-7, integrating the modules into the system one by one for integrated testing of the whole system;
s3-2-8, modular documents are written, wherein the modular documents comprise functions, interfaces and implementation details of each module;
s3-2-9, feeding back and iterating, and carrying out necessary modification and adjustment according to the test result and user feedback; through feedback loops, the modular design of the system is constantly optimized and improved;
s3-2-10, training and maintenance, namely providing training for team members, and ensuring that the team members know the modular structure and design principle of the system;
a periodic maintenance schedule is established.
Preferably, the energy consumption optimization algorithm has the following calculation formula:
energy consumption minimization problem:
objective function:
Minimizef(x)
wherein x is a system parameter vector, and f (x) represents energy consumption of the system;
power consumption minimization problem:
objective function:
preferably, the mounting adjusting valve comprises the steps of:
S4-1, determining an installation position, and determining the installation position of the regulating valve according to the system design and the hydraulic balance requirement;
the regulating valve is arranged between the water supply pipeline and the water return pipeline;
s4-2, preparing tools and materials, and ensuring that the tools and materials required by installation are provided, wherein the tools and materials comprise a spanner, a screwdriver, a sealing material and a bolt;
s4-3, closing a water source, and before installation, ensuring that the water source of a pipeline related to the regulating valve is closed so as to avoid interference of water flow to an installation process;
s4-4, cleaning the pipeline, and cleaning the pipeline around the installation position to ensure that no sundries, sediment and corrosive substances exist;
s4-5, installing the regulating valve, and installing the regulating valve to a preset position;
ensuring that the tie bolts are tightened, that the seal is properly installed, and that the manufacturer provides specific installation instructions;
s4-6, connecting the regulating valve with a water supply pipeline and a water return pipeline of the system;
the pipe joint and the sealing material are used for ensuring tight connection and no water leakage;
s4-7, adjusting the opening of a valve port, and adjusting the opening of the valve port of the regulating valve according to the water flow requirement of the system; by rotating a handle and a lever on the regulator valve;
S4-8, installing accessories, wherein accessories required by installing the regulating valve comprise a manual control rod, a sensor and an actuator, and the accessories are adjusted according to a system;
s4-9, performing a preliminary test, and opening a water source to perform the preliminary test;
ensuring that the opening of the valve port meets the design requirement when water flows through the regulating valve;
s4-10, checking water leakage, carefully checking the regulating valve and the connecting point thereof, and ensuring that no water leakage exists;
if water leakage exists, the sealing element and the fastening bolt are checked again;
s4-11, performing system debugging, wherein the system debugging is performed before the whole system is put into operation;
gradually adjusting the opening of the regulating valve to ensure that water flow is uniformly distributed in the system and achieve hydraulic balance;
s4-12, recording installation information, and recording the model, installation position and adjustment parameter information of the regulating valve.
Preferably, an energy saving control system for heating ventilation air conditioner relates to a hydraulic balance adjusting method for heating ventilation air conditioner according to any one of claims 1-8, and is characterized in that the energy saving control system for heating ventilation air conditioner is designed according to a hydraulic balance adjusting method for heating ventilation air conditioner and is divided into an environment sensing module, an intelligent temperature control module, a dynamic air quantity adjusting module, an illumination control module, a solar energy utilization module, an intelligent exhaust module, an energy recovery module, an intelligent remote monitoring and controlling module, an intelligent energy management module, a real-time data recording and analyzing module and a user interaction interface module.
Compared with the prior art, the invention has the advantages that:
(1) The traditional approach is typically based on a single regulator valve or a static hydraulic balance design; the new system adopts a multi-module design, including a flow regulating module, a pressure regulating module and the like, so that the system is more flexible, maintainable and upgradeable.
(2) Traditional systems may not be able to perform remote monitoring and control, requiring field operations; the new system has remote monitoring and control functions, realizes remote operation, adjustment and fault diagnosis through the Internet, and improves the response speed and flexibility of the system.
(3) The traditional method can adopt manual or static adjustment, and can not be adjusted in real time according to the running condition of the system; the new system introduces an intelligent control module, optimizes according to real-time sensor data and an algorithm, dynamically adjusts hydraulic balance and improves the efficiency of the system.
Drawings
FIG. 1 is a schematic diagram of the overall flow of a hydraulic balance adjustment method for heating ventilation and air conditioning;
fig. 2 is a schematic diagram of the overall flow of an energy saving control system for a heating ventilation air conditioner.
Detailed Description
Examples: referring to fig. 1-2, a hydraulic balance adjusting method for a heating ventilation air conditioner includes the following steps;
S1, system design analysis, wherein in the system design stage, the system is firstly analyzed, including pipeline layout, branch length, equipment type and position, and the water flow requirement of each branch and the overall hydraulic characteristic of the system are determined;
s2, calculating water flow requirements, and calculating the water flow requirements of each branch, including the water flow of a water supply side and a water return side, according to the design requirements of each branch and the water flow requirements of equipment;
s3, selecting a regulating valve, and selecting the regulating valve according to the calculated water flow demand;
the regulating valve is used for regulating the water flow to meet the requirements of each branch;
s4, installing regulating valves, wherein each branch is provided with a regulating valve so as to ensure that the regulating valves can regulate water flow according to the water flow, and the regulating valves comprise a one-way valve, a manual regulating valve and an automatic regulating valve;
s5, preliminary adjustment is carried out, the system is opened, and preliminary adjustment is carried out, wherein the preliminary adjustment comprises the step of gradually adjusting the adjusting valve on each branch so as to meet the design water flow requirement;
using a flow meter tool to monitor and adjust water flow;
preparing a system:
before the adjustment is made, the system is ensured to be in a normal operation state, and other valves related to the regulating valve are closed. Ensuring that the pipe system in which the regulating valve is located is free from other disturbances.
Knowing the system requirements:
the design requirements of the system are understood to include the required water flow, pressure, and specific requirements of the individual branches. Such information is typically contained in a system design document.
Preliminary adjustment:
and adjusting the opening degree of the regulating valve according to the primary requirement of the system. This may be accomplished by manually rotating a handle or lever on the regulator valve. Preliminary adjustments are made to meet the overall needs of the system.
Measuring parameters:
the water flow and pressure of each branch in the system are measured using a suitable measuring tool. These parameters may provide a basis for adjustment.
Analyzing the measurement data:
the measured data are analyzed to check whether the actual water flow and pressure are consistent with the design requirements. The position of the branch or regulating valve to be adjusted is determined.
Adjusting a single branch:
and gradually adjusting the opening of the regulating valve aiming at the branch needing to be adjusted. By small-amplitude adjustment, the response of the system is observed, and the system gradually approaches the design requirement.
And (3) real-time monitoring:
in the process of adjustment, the water flow and pressure of the system are monitored in real time. This may be achieved by using sensors, flow meters, etc.
And (3) verifying hydraulic balance:
and verifying the hydraulic balance of the system, and ensuring that the water flow and the pressure of each branch reach the design requirements. This may require multiple adjustments and measurements.
Adjusting other branches:
other branches are adjusted gradually, so that the whole system is guaranteed to achieve hydraulic balance. Depending on the situation, it may be necessary to adjust back and forth multiple times.
Recording adjustment parameters:
and recording the adjustment parameters of each branch, including the opening degree of the regulating valve, the measured water flow, the measured pressure and other information. These records facilitate future maintenance and system adjustments.
System stability test:
after the adjustment is completed, the stability test of the system is performed. The system can be ensured to stably run under various working conditions, and the water flow and the pressure are kept within the design range.
Periodic inspection:
the system is checked regularly to ensure the persistence of the hydraulic balance. Readjustment of the regulator valve may be required if the system changes.
S6, balancing the system, and repeatedly adjusting the regulating valve through in-situ testing and monitoring of the system performance to ensure that water flow in the system is uniformly distributed among all branches;
s7, periodically checking and adjusting, and periodically checking the performance of the system after the system is put into operation, particularly when the system changes, including equipment replacement and pipeline change;
the regulator valve is adjusted in special cases to maintain the hydraulic balance of the system.
S1, system design analysis comprises the following steps:
S1-1, acquiring a design document, and collecting a system design document, wherein the system design document comprises a pipeline layout diagram, an equipment position diagram and a branch length table;
the documents provide the basic structure and design parameters of the system;
s1-2, examining a pipeline layout diagram, analyzing the pipeline layout diagram, knowing the trend, branching condition and connecting equipment position of a main pipeline, and considering the number of straight line sections and elbows of the pipeline and the influence of the straight line sections and the elbows on fluid flow;
s1-3, considering the diameter and the material of the pipeline, and evaluating the diameter and the material of the pipeline according to the system requirement and the flow calculation, so that the pipeline can meet the design requirement, and the problems of overlarge and undersize are avoided;
s1-4, analyzing the length of the branches, checking a branch length table, and knowing the length of each branch;
the longer branch has additional hydraulic balance and adjustment, while the shorter branch has influence on the system performance;
s1-5, evaluating the position of equipment, checking an equipment position diagram, and knowing the positions of all key equipment, including a pump, a regulating valve and a heat exchanger;
s1-6, confirming the type and specification of equipment and confirming the type and specification of various equipment used in the system; different types and specifications of equipment have different requirements for hydraulic balance and adjustment;
S1-7, calculating and evaluating the flow velocity and pressure loss of each pipeline section in the system by taking the flow velocity and pressure loss into consideration;
s1-8, analyzing the mutual influence of equipment, wherein the mutual influence of the equipment is considered, and the mutual influence comprises the cooperative work between a pump and a regulating valve; ensuring that the selection and arrangement of the equipment does not result in unnecessary pressure loss and system imbalance;
s1-9, simulating the running condition of the system, and predicting the water flow and pressure distribution under different working conditions by using hydraulic simulation software and tools;
s1-10, identifying potential problem areas, identifying areas with uneven water flow, excessive pressure loss and other problems according to analysis results, and performing additional adjustment and optimization;
s1-11, providing improvement suggestions, and based on analysis results, providing improvement suggestions of pipeline layout, branch length, equipment position and equipment specification, wherein the improvement suggestions comprise redesigning the pipeline layout, adjusting the equipment position and replacing the equipment specification;
s1-12, periodically updating analysis, and periodically updating analysis on pipeline layout, branch length, equipment type and position during system operation and maintenance.
S2, calculating water flow, wherein the step of calculating the water flow comprises the following steps of:
s2-1, collecting system information, and acquiring design parameters of a system, wherein the design parameters comprise branch length, pipeline diameter, equipment type and quantity;
Branch length, pipe diameter, equipment type and number are contained in the system design document;
s2-2, determining the maximum demands of the branches, and determining the maximum water flow demands under the most unfavorable conditions and the conditions under the maximum load, the most far end and other design conditions for each branch;
s2-3, considering additional requirements, and considering any additional requirements, including future system expansion and standby equipment operation; ensuring that the calculation of the water flow requirement has certain redundancy and adapting to future changes;
s2-4, calculating total water flow requirements, and summing the maximum water flow requirements of all branches in the system to obtain the total water flow requirements of the system;
s2-5, determining a design flow rate, and calculating the design flow rate according to system parameters and the total water flow demand;
the design flow rate is within the range that maintains normal operation within the conduit to ensure that the water flow does not cause excessive frictional losses;
s2-6, checking the diameter of the pipeline, and selecting the diameter of the pipeline according to the design flow rate and system parameters;
ensuring that the selected diameter of the conduit meets the flow rate and water flow requirements;
s2-7, verifying the feasibility of the system, and comparing the calculated water flow demand with performance parameters of system components including pumps and regulating valves to ensure the feasibility and stability of the system;
S2-8, adjusting and optimizing, and if the calculated water flow requirement exceeds the capacity of the system components, adjusting the system design, replacing equipment and optimizing the pipeline layout.
S3, remote monitoring and operation of the regulating valve are integrated, so that an engineer remotely monitors and adjusts parameters of the regulating valve;
the regulating valve integrates an energy consumption optimization algorithm, so that the regulating valve can minimize energy consumption under different load conditions, and the opening degree of the valve is dynamically adjusted to match actual demands instead of a static set value;
the regulating valve is regulated by modularized management.
The integrated remote monitoring and operating functions include the steps of:
s3-1-1, demand analysis, namely determining specific demands of remote monitoring and operation; explicitly monitored parameters, control functions and security and permission requirements for remote access;
s3-1-2, selecting a communication technology, wherein the communication technology comprises the Internet, a local area network and a wireless network;
s3-1-3, connecting equipment, namely installing hardware equipment, wherein the hardware equipment comprises a sensor, an actuator and a remote communication module, and connecting the equipment to a network, wherein the upgrading of the existing equipment and the purchase of new equipment are included;
s3-1-4, data acquisition and transmission, developing and selecting a data acquisition and transmission system, and collecting real-time data from equipment, including sensor data and equipment states;
S3-1-5, deploying a remote monitoring system, wherein the deploying remote monitoring system comprises a monitoring server and corresponding software;
the remote monitoring system receives, stores and processes the data transmitted from the equipment;
s3-1-6, implementing a remote control function, developing and configuring the remote control function, ensuring that the operation of equipment is realized through a remote monitoring system, taking security measures into consideration, and avoiding unauthorized access;
s3-1-7, designing a user interface, namely designing a user-friendly remote monitoring and operation interface, a webpage interface, a mobile application and other customized user interfaces;
s3-1-8, security and authority control, implementing security measures including encrypted communication, authentication and access control to ensure that only authorized users can access and control the device;
s3-1-9, testing and verifying the system before actual operation, so as to ensure that the remote monitoring and operation functions can reliably operate under different network conditions;
s3-1-10, training and documentation, providing training and documentation to ensure that equipment operators and system administrators know how to use remote monitoring and operation functions;
s3-1-11, continuous maintenance and upgrading, and establishing a continuous maintenance plan to monitor the system performance, solve the potential problems and upgrade at the time.
The modular design comprises the following steps:
s3-2-1, analyzing the system, carrying out detailed analysis on the whole system, and determining the functions and the requirements of the system;
s3-2-module division, namely dividing the system into a flow regulating module, a pressure regulating module, a regulating valve module, a sensor module, a control module, a communication module, a data recording and analyzing module and a maintenance module according to the functions and requirements of the system;
each module is relatively independent and is responsible for executing a specific function and task;
s3-2-defining an interface, determining an interface between modules, wherein the interface comprises an input interface, an output interface and a communication interface;
s3-2-3, determining module functions, defining functions and responsibilities for each module clearly, wherein the functions of each module are clear, and overlapping of the functions is avoided;
specifically, the flow adjustment module:
the functions are as follows: for adjusting the water flow in the different branches.
The design characteristics are as follows: the modularized flow regulating device can independently regulate the water flow of each branch according to the requirement.
And the pressure adjusting module is used for:
the functions are as follows: for adjusting the water pressure in the different branches.
The design characteristics are as follows: the modularized pressure regulating device can independently regulate the water pressure of each branch according to the requirement.
And a regulating valve module:
The functions are as follows: a regulating valve is included to control the opening of the water flow.
The design characteristics are as follows: different types and specifications of regulating valve modules can be selected for replacement and upgrading according to specific requirements.
A sensor module:
the functions are as follows: the system is used for monitoring parameters such as water flow, pressure, temperature and the like in the system.
The design characteristics are as follows: the modularized sensor device can select different types of sensors according to the needs and is flexibly deployed.
And the control module is used for:
the functions are as follows: controlling the operation of the flow regulating module, the pressure regulating module and the regulating valve module.
The design characteristics are as follows: the modularized control system can integrate different control algorithms and logics to realize automatic hydraulic balance.
And a communication module:
the functions are as follows: providing the ability to communicate with other system components, such as data exchanges with building automation systems, monitoring systems, and the like.
The design characteristics are as follows: the modular communication interface supports different communication protocols and standards.
Data recording and analyzing module:
the functions are as follows: critical data of the system in operation is recorded and analyzed for performance evaluation and fault diagnosis.
The design characteristics are as follows: different types of data logging modules may be selected to support both offline and online data analysis.
And a maintenance module:
the functions are as follows: tools for system maintenance and diagnostics are provided.
The design characteristics are as follows: modular maintenance interfaces including fault diagnostic tools, alarm systems, etc.
S3-2-4, standardized interfaces and protocols are adopted, and standardized interfaces and communication protocols are adopted among the modules, so that seamless integration among different modules can be realized;
s3-2-5, designing the modules in detail, wherein each module comprises implementation details in the module, and all parts in the module can cooperate to realize the functions of the module;
s3-2-6, independently testing each module, and verifying the functions and performances of the modules;
s3-2-7, integrating the modules into the system one by one for integrated testing of the whole system;
s3-2-8, modular documents are written, wherein the modular documents comprise functions, interfaces and implementation details of each module;
s3-2-9, feeding back and iterating, and carrying out necessary modification and adjustment according to the test result and user feedback; through feedback loops, the modular design of the system is constantly optimized and improved;
s3-2-10, training and maintenance, namely providing training for team members, and ensuring that the team members know the modular structure and design principle of the system;
A periodic maintenance schedule is established.
The energy consumption optimization algorithm has the following calculation formula:
energy consumption minimization problem:
objective function:
Minimizef(x)
wherein x is a system parameter vector, and f (x) represents energy consumption of the system;
power consumption minimization problem:
objective function:
installing the regulating valve comprises the following steps:
s4-1, determining an installation position, and determining the installation position of the regulating valve according to the system design and the hydraulic balance requirement;
the regulating valve is arranged between the water supply pipeline and the water return pipeline;
s4-2, preparing tools and materials, and ensuring that the tools and materials required by installation are provided, wherein the tools and materials comprise a spanner, a screwdriver, a sealing material and a bolt;
s4-3, closing a water source, and before installation, ensuring that the water source of a pipeline related to the regulating valve is closed so as to avoid interference of water flow to the installation process;
s4-4, cleaning the pipeline, and cleaning the pipeline around the installation position to ensure that no sundries, sediment and corrosive substances exist;
s4-5, installing a regulating valve, and installing the regulating valve to a preset position;
ensuring that the tie bolts are tightened, that the seal is properly installed, and that the manufacturer provides specific installation instructions;
s4-6, connecting a pipeline, and connecting the regulating valve with a water supply pipeline and a water return pipeline of the system;
The pipe joint and the sealing material are used for ensuring tight connection and no water leakage;
s4-7, adjusting the opening of a valve port, and adjusting the opening of the valve port of the regulating valve according to the water flow requirement of the system; by rotating a handle and an operating lever on the regulating valve;
s4-8, installing accessories, wherein accessories required by the regulating valve are installed, and the accessories comprise a manual control rod, a sensor and an actuator, and are adjusted according to a system;
s4-9, performing a preliminary test, and opening a water source to perform the preliminary test;
ensuring that the opening of the valve port meets the design requirement when water flows through the regulating valve;
s4-10, checking water leakage, carefully checking the regulating valve and the connecting point thereof, and ensuring that no water leakage exists;
if water leakage exists, the sealing element and the fastening bolt are checked again;
s4-11, performing system debugging, wherein the system debugging is performed before the whole system is put into operation;
gradually adjusting the opening of the regulating valve to ensure that water flow is uniformly distributed in the system and achieve hydraulic balance;
s4-12, recording installation information, and recording the model, installation position and adjustment parameter information of the regulating valve.
An energy saving control system for heating ventilation air conditioner relates to a water power balance adjusting method for heating ventilation air conditioner according to any one of claims 1-8, which is characterized in that the energy saving control system for heating ventilation air conditioner is designed according to a water power balance adjusting method for heating ventilation air conditioner and is divided into an environment sensing module, an intelligent temperature control module, a dynamic air quantity adjusting module, an illumination control module, a solar energy utilization module, an intelligent exhaust module, an energy recovery module, an intelligent remote monitoring and controlling module, an intelligent energy management module, a real-time data recording and analyzing module and a user interaction interface module.
An environment sensing module:
the functions are as follows: sensing parameters such as temperature, humidity, illumination and the like of indoor and outdoor environments.
The components are as follows: temperature sensors, humidity sensors, light sensors, etc.
And the intelligent temperature control module:
the functions are as follows: and according to the data of the environment sensing module, the heating and refrigerating system is intelligently regulated and controlled, so that the accurate control of the temperature is realized.
The components are as follows: intelligent temperature controller, control algorithm.
Dynamic air quantity adjusting module:
the functions are as follows: the air quantity of air supply and air exhaust is dynamically adjusted according to real-time requirements, so that energy waste is avoided.
The components are as follows: an air quantity sensor, an adjustable air quantity fan and a dynamic air quantity adjusting algorithm.
The illumination control module:
the functions are as follows: through perception illumination intensity, intelligent adjustment lighting system realizes the rational utilization of illumination.
The components are as follows: an illumination sensor, a dimmable lighting device and an intelligent illumination adjustment controller.
Solar energy utilization module:
the functions are as follows: and solar energy is utilized for heating or refrigerating, so that the dependence on the traditional energy source is reduced.
The components are as follows: solar panels, warm water or refrigerant circulation systems, solar tracking devices (if applicable).
Intelligent exhaust module:
the functions are as follows: according to indoor air quality real-time supervision, intelligent adjustment exhaust amount of wind improves air circulation efficiency.
The components are as follows: air quality sensor, adjustable amount of wind exhaust fan, exhaust regulation controller.
And the energy recovery module is used for:
the functions are as follows: the energy in the exhaust air is recovered by a heat exchanger or the like for preheating or precooling the newly entered air.
The components are as follows: heat exchanger, energy recovery controller.
Intelligent remote monitoring and control module:
the functions are as follows: remote real-time monitoring, diagnosis and control functions are provided, and remote adjustment of system parameters by operation and maintenance personnel is facilitated.
The components are as follows: remote monitoring software, a communication module and a data analysis algorithm.
An intelligent energy management module:
the functions are as follows: and the system operation is optimized according to the historical data and the real-time environmental conditions by utilizing an advanced control algorithm, so that the optimal energy-saving effect is realized.
The components are as follows: an energy management algorithm engine and a data analysis module.
Real-time data recording and analysis module:
the functions are as follows: system operational data is recorded and optimization suggestions are provided by analysis.
The components are as follows: a data recording module and a data analysis engine.
And the user interaction interface module is used for:
the functions are as follows: and providing a user-friendly interface to enable a user to know the running state of the system and participate in energy-saving control.
The components are as follows: user interaction interface, mobile application.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.
Claims (9)
1. The water power balance adjusting method for the heating ventilation air conditioner is characterized by comprising the following steps of:
s1, system design analysis, wherein in the system design stage, the system is firstly analyzed, including pipeline layout, branch length, equipment type and position, and the water flow requirement of each branch and the overall hydraulic characteristic of the system are determined;
s2, calculating water flow requirements, wherein the water flow requirements of each branch comprise water flow of a water supply side and a water return side according to the design requirements of each branch and the water flow requirements of equipment;
s3, selecting a regulating valve, and selecting the regulating valve according to the calculated water flow demand;
The regulating valve is used for regulating water flow and meeting the requirements of each branch;
s4, installing regulating valves, wherein the regulating valves are installed on each branch, so that the regulating valves can be used for regulating water flow according to the water flow, and the regulating valves comprise a one-way valve, a manual regulating valve and an automatic regulating valve;
s5, preliminary adjustment is carried out, the system is opened, and preliminary adjustment is carried out, wherein the preliminary adjustment comprises the step of gradually adjusting the adjusting valve on each branch so as to meet the design water flow requirement;
using a flow meter tool to monitor and adjust water flow;
s6, balancing the system, and repeatedly adjusting the regulating valve through in-situ testing and monitoring of the system performance to ensure that water flow in the system is uniformly distributed among all branches;
s7, periodically checking and adjusting, and periodically checking the performance of the system after the system is put into operation, particularly when the system changes, including equipment replacement and pipeline change;
the regulator valve is adjusted in special cases to maintain the hydraulic balance of the system.
2. The water power balance adjustment method for heating ventilation and air conditioning according to claim 1, wherein the S1 system design analysis comprises the following steps:
s1-1, acquiring a design document, and collecting a system design document, wherein the system design document comprises a pipeline layout diagram, an equipment position diagram and a branch length table;
The document provides the basic structure and design parameters of the system;
s1-2, examining a pipeline layout diagram, analyzing the pipeline layout diagram, knowing the trend, branching condition and connecting equipment position of a main pipeline, and considering the number of straight line sections and elbows of the pipeline and the influence of the straight line sections and the elbows on fluid flow;
s1-3, considering the diameter and the material of the pipeline, and evaluating the diameter and the material of the pipeline according to the system requirement and the flow calculation, so that the pipeline can meet the design requirement, and the problems of overlarge and undersize are avoided;
s1-4, analyzing the length of the branches, checking a branch length table, and knowing the length of each branch;
the longer branch has additional hydraulic balance and adjustment, while the shorter branch has influence on the system performance;
s1-5, evaluating the position of equipment, checking an equipment position diagram, and knowing the positions of all key equipment, including a pump, a regulating valve and a heat exchanger;
s1-6, confirming the type and specification of equipment and confirming the type and specification of various equipment used in the system; different types and specifications of equipment have different requirements for hydraulic balance and adjustment;
s1-7, calculating and evaluating the flow velocity and pressure loss of each pipeline section in the system by taking the flow velocity and pressure loss into consideration;
s1-8, analyzing the interaction of equipment, wherein the interaction of equipment is considered, and the interaction comprises the cooperation between the pump and the regulating valve; ensuring that the selection and arrangement of the equipment does not result in unnecessary pressure loss and system imbalance;
S1-9, simulating the running condition of the system, and predicting the water flow and pressure distribution under different working conditions by using hydraulic simulation software and tools;
s1-10, identifying potential problem areas, identifying areas with uneven water flow, excessive pressure loss and other problems according to analysis results, and performing additional adjustment and optimization;
s1-11, providing improvement suggestions, and based on analysis results, providing improvement suggestions of pipeline layout, branch length, equipment position and equipment specification, wherein the improvement suggestions comprise redesigning the pipeline layout, adjusting the equipment position and replacing the equipment specification;
s1-12, periodically updating analysis, and periodically updating analysis on pipeline layout, branch length, equipment type and position during system operation and maintenance.
3. The water balance adjusting method for heating ventilation and air conditioning according to claim 1, wherein the S2 water flow calculation comprises the following steps:
s2-1, collecting system information, and acquiring design parameters of a system, wherein the design parameters comprise branch length, pipeline diameter, equipment type and quantity;
the branch length, the pipe diameter, the equipment type and the number are contained in a system design document;
S2-2, determining the maximum demands of the branches, and determining the maximum water flow demands under the most unfavorable conditions and the conditions under the maximum load, the most far end and other design conditions for each branch;
s2-3, considering additional requirements, and considering any additional requirements, including future system expansion and standby equipment operation; ensuring that the calculation of the water flow requirement has certain redundancy and adapting to future changes;
s2-4, calculating total water flow requirements, and summing the maximum water flow requirements of all branches in the system to obtain the total water flow requirements of the system;
s2-5, determining a design flow rate, and calculating the design flow rate according to system parameters and the total water flow demand;
the design flow rate is within a range that maintains normal operation within the conduit to ensure that the water flow does not cause excessive frictional losses;
s2-6, checking the diameter of the pipeline, and selecting the diameter of the pipeline according to the design flow rate and system parameters;
ensuring that the selected pipe diameter meets flow rate and water flow requirements;
s2-7, verifying the feasibility of the system, and comparing the calculated water flow demand with the performance parameters of the system components including the pump and the regulating valve to ensure the feasibility and the stability of the system;
s2-8, adjusting and optimizing, and if the calculated water flow requirement exceeds the capacity of the system components, adjusting the system design, replacing equipment and optimizing the pipeline layout.
4. The water power balance adjusting method for the heating ventilation air conditioner based on the water power balance adjusting method for the heating ventilation air conditioner according to claim 1, wherein the S3 adjusting valve is remotely monitored and operated, remote monitoring and operating functions are integrated, and an engineer is enabled to remotely monitor and adjust parameters of the adjusting valve;
the regulating valve integrates an energy consumption optimization algorithm, so that the regulating valve can minimize energy consumption under different load conditions, and the opening degree of the valve is dynamically adjusted to match actual demands instead of a static set value;
the regulating valve is regulated by modularized management.
5. The water balance adjustment method for heating ventilation and air conditioning according to claim 4, wherein the integrated remote monitoring and operation function comprises the steps of:
s3-1-1, demand analysis, namely determining specific demands of remote monitoring and operation; explicitly monitored parameters, control functions and security and permission requirements for remote access;
s3-1-2, selecting a communication technology, wherein the communication technology comprises the Internet, a local area network and a wireless network;
s3-1-3, connecting equipment, namely installing hardware equipment, wherein the hardware equipment comprises a sensor, an actuator and a remote communication module, and connecting the equipment to a network, wherein the upgrading of the existing equipment and the purchase of new equipment are included;
S3-1-4, data acquisition and transmission, developing and selecting a data acquisition and transmission system, and collecting real-time data from the equipment, wherein the real-time data comprises sensor data and equipment states;
s3-1-5, deploying a remote monitoring system, wherein the deploying remote monitoring system comprises a monitoring server and corresponding software;
the remote monitoring system receives, stores and processes the data transmitted from the equipment;
s3-1-6, implementing a remote control function, developing and configuring the remote control function, ensuring that the operation of equipment is realized through a remote monitoring system, taking security measures into consideration, and avoiding unauthorized access;
s3-1-7, designing a user interface, namely designing a user-friendly remote monitoring and operation interface, a webpage interface, a mobile application and other customized user interfaces;
s3-1-8, security and authority control, implementing security measures including encrypted communication, authentication and access control to ensure that only authorized users can access and control the device;
s3-1-9, testing and verifying the system before actual operation, so as to ensure that the remote monitoring and operation functions can reliably operate under different network conditions;
s3-1-10, training and documentation, providing training and documentation to ensure that equipment operators and system administrators know how to use remote monitoring and operation functions;
S3-1-11, continuous maintenance and upgrading, and establishing a continuous maintenance plan to monitor the system performance, solve the potential problems and upgrade at the time.
6. The water balance adjustment method for heating ventilation and air conditioning according to claim 4, wherein the modular design comprises the steps of:
s3-2-1, analyzing the system, carrying out detailed analysis on the whole system, and determining the functions and the requirements of the system;
s3-2-module division, namely dividing the system into a flow regulating module, a pressure regulating module, a regulating valve module, a sensor module, a control module, a communication module, a data recording and analyzing module and a maintenance module according to the functions and requirements of the system;
each module is relatively independent and is responsible for executing a specific function and task;
s3-2-defining an interface, determining an interface between modules, wherein the interface comprises an input interface, an output interface and a communication interface;
s3-2-3, determining module functions, defining functions and responsibilities for each module clearly, wherein the functions of each module are clear, and overlapping of the functions is avoided;
s3-2-4, standardized interfaces and protocols are adopted, and standardized interfaces and communication protocols are adopted among the modules, so that seamless integration among different modules can be realized;
s3-2-5, designing the modules in detail, wherein each module comprises implementation details in the module, and all parts in the module can cooperate to realize the functions of the module;
S3-2-6, independently testing each module, and verifying the functions and performances of the modules;
s3-2-7, integrating the modules into the system one by one for integrated testing of the whole system;
s3-2-8, modular documents are written, wherein the modular documents comprise functions, interfaces and implementation details of each module;
s3-2-9, feeding back and iterating, and carrying out necessary modification and adjustment according to the test result and user feedback; through feedback loops, the modular design of the system is constantly optimized and improved;
s3-2-10, training and maintenance, namely providing training for team members, and ensuring that the team members know the modular structure and design principle of the system;
a periodic maintenance schedule is established.
7. The water power balance adjusting method for heating ventilation and air conditioning according to claim 4, wherein the energy consumption optimizing algorithm has the following calculation formula:
energy consumption minimization problem:
objective function:
Minimizef(x)
wherein x is a system parameter vector, and f (x) represents energy consumption of the system;
power consumption minimization problem:
objective function:
8. the water power balance adjusting method for heating ventilation and air conditioning according to claim 1, wherein the installing adjusting valve comprises the following steps:
S4-1, determining an installation position, and determining the installation position of the regulating valve according to the system design and the hydraulic balance requirement;
the regulating valve is arranged between the water supply pipeline and the water return pipeline;
s4-2, preparing tools and materials, and ensuring that the tools and materials required by installation are provided, wherein the tools and materials comprise a spanner, a screwdriver, a sealing material and a bolt;
s4-3, closing a water source, and before installation, ensuring that the water source of a pipeline related to the regulating valve is closed so as to avoid interference of water flow to an installation process;
s4-4, cleaning the pipeline, and cleaning the pipeline around the installation position to ensure that no sundries, sediment and corrosive substances exist;
s4-5, installing the regulating valve, and installing the regulating valve to a preset position;
ensuring that the tie bolts are tightened, that the seal is properly installed, and that the manufacturer provides specific installation instructions;
s4-6, connecting the regulating valve with a water supply pipeline and a water return pipeline of the system;
the pipe joint and the sealing material are used for ensuring tight connection and no water leakage;
s4-7, adjusting the opening of a valve port, and adjusting the opening of the valve port of the regulating valve according to the water flow requirement of the system; by rotating a handle and a lever on the regulator valve;
S4-8, installing accessories, wherein accessories required by installing the regulating valve comprise a manual control rod, a sensor and an actuator, and the accessories are adjusted according to a system;
s4-9, performing a preliminary test, and opening a water source to perform the preliminary test;
ensuring that the opening of the valve port meets the design requirement when water flows through the regulating valve;
s4-10, checking water leakage, carefully checking the regulating valve and the connecting point thereof, and ensuring that no water leakage exists;
if water leakage exists, the sealing element and the fastening bolt are checked again;
s4-11, performing system debugging, wherein the system debugging is performed before the whole system is put into operation;
gradually adjusting the opening of the regulating valve to ensure that water flow is uniformly distributed in the system and achieve hydraulic balance;
s4-12, recording installation information, and recording the model, installation position and adjustment parameter information of the regulating valve.
9. An energy-saving control system for heating ventilation air conditioner relates to a water power balance adjustment method for heating ventilation air conditioner according to any one of claims 1-8, and is characterized in that the energy-saving control system for heating ventilation air conditioner is designed according to a water power balance adjustment method for heating ventilation air conditioner and comprises an environment sensing module, an intelligent temperature control module, a dynamic air quantity adjustment module, an illumination control module, a solar energy utilization module, an intelligent exhaust module, an energy recovery module, an intelligent remote monitoring and control module, an intelligent energy management module, a real-time data recording and analysis module and a user interaction interface module.
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