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CN105910317B - Speed heat combined supply system - Google Patents

Speed heat combined supply system Download PDF

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Publication number
CN105910317B
CN105910317B CN201610242848.4A CN201610242848A CN105910317B CN 105910317 B CN105910317 B CN 105910317B CN 201610242848 A CN201610242848 A CN 201610242848A CN 105910317 B CN105910317 B CN 105910317B
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China
Prior art keywords
heat exchanger
compressor
valve
water
interface
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CN201610242848.4A
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Chinese (zh)
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CN105910317A (en
Inventor
施永康
杨杰
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Priority to CN201610242848.4A priority Critical patent/CN105910317B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • F25B1/06Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001Ejectors not being used as compression device

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The present invention discloses a kind of speed heat combined supply system, including the first compressor refrigeration system, second compressor refrigeration system, First Heat Exchanger, second heat exchanger, boiler, first water pump and the first shut-off valve, the boiler connects the second heat exchanger, first compressor refrigeration system and the second compressor refrigeration system structure are identical, it include compressor, gas-liquid separator, evaporator, first throttle component, economizer and four-way valve, the first water pump is connected after the First Heat Exchanger is in parallel with second heat exchanger, the water outlet of first water pump connection air conditioning terminal, the water inlet of First Heat Exchanger connection air conditioning terminal, second heat exchanger connects first shut-off valve, first shut-off valve connects First Heat Exchanger.This system realizes one-machine-multi-function, can series and parallel work, be rapidly completed refrigeration or heating, heat exchange end is that water recycles: the problems such as can effectively avoid difficult oil return, coolant leakage pollution water quality.

Description

Speed heat combined supply system
Technical field
The present invention relates to air conditioner heat pump system field, specially a kind of speed heat combined supply system.
Background technique
Existing overwhelming majority air-conditioning heat pump product, air-conditioning is based on freezing or heat, when air-conditioning is in refrigeration or heating, meeting To a large amount of heat of outdoor discharge or cold air;Its heat pump is based on water heating, can be to outdoor discharge when unit carries out water heating A large amount of cold air;Therefore most air-conditioning heat pump products but also have a single function not only without comprehensive energy utilization at this stage.
The mode of existing combined supply system, the heat exchange of heat exchanger end can be divided into two classes:
A kind of fluorine circulation pattern: " trilogy supply as disclosed in the Chinese invention patent application of Publication No. CN103307805A Heat pump system ", end is exchanged heat with fluorine circulation.When the road heat exchanger Nei Fu leaks, water quality can be polluted;Water enters system Cooling system will lead to the parts damages such as refrigeration system inner compressor;Refrigeration circuit is too long, and resistance is excessive, it may appear that oil return difficulty etc. Problem.
The water circulation model: " energy-saving air conditioning as disclosed in the Chinese invention patent application of Publication No. CN101813401A Hot water tri-generation system ", end is exchanged heat with water circulation.One, two compressor of case is used to manufacture domestic hot-water, separately One is used to control air conditioning terminal.When any refrigeration system breaks down, unit can lose corresponding function;The unit two Compressor can not be completed at the same time same function.
Also some heat exchange ends are the trilogy supply that water recycles, and air-conditioner circulating water and domestic hot-water mix, be easy in this way Lead to air-conditioning heat exchanger fouling, while domestic hot-water cannot keep cleaning health.
In conclusion existing air-conditioning products there are the problem of have:
1) air-conditioning heat pump product function is single, and resource utilization is low, cannot quickly exchange heat.
2) coolant leakage of trilogy supply can pollute water quality, and oil return is difficult, can not tandem working, heat exchange end is mixed water and be will affect It unit performance and is cleaned with water.
Summary of the invention
The shortcomings that in order to overcome the prior art to refer to, for energy-saving and emission-reduction, comprehensively utilizes the purpose of resource, and solves to change The problems such as water is mixed in hot end, oil return is difficult, the present invention provide that a kind of scope of application is wider, and faster, function is more by heat transfer rate, performance It is more stable, the higher speed heat combined supply system of resource utilization.
The technical solution adopted by the present invention to solve the technical problems is: speed heat combined supply system, including the first compressor Refrigeration system, the second compressor refrigeration system, First Heat Exchanger, the second heat exchanger, boiler, the first water pump and the first cut-off Valve, the 5th interface C that the boiler connects second heat exchanger and the 6th interface D-shaped are at circulation stream, the boiler Second water pump, first compressor refrigeration system and the second compressor refrigeration system are installed between second heat exchanger Structure is identical, includes compressor, gas-liquid separator, evaporator, first throttle component, economizer and four-way valve, the pressure Contracting machine is connect with the first interface D of the four-way valve, first compressor refrigeration system and the second compressor refrigeration system The second interface of four-way valve is separately connected the first interface A of the First Heat Exchanger and the second heat exchanger, the First Heat Exchanger Second interface B with the second heat exchanger is respectively and described in first compressor refrigeration system and the second compressor refrigeration system The first interface A connection of economizer, the second interface B of the economizer are connect with the first throttle component, the first segment Stream unit is connect with the evaporator, and the evaporator is connect with the third interface E of the four-way valve, and the 4th of the four-way valve the Interface S is connect with the gas-liquid separator, and the gas-liquid separator is connect with the compressor, and result in formation of compressor evaporations The circulation of device branch;Institute is connected after the third interface E of the First Heat Exchanger is in parallel with the third interface E of second heat exchanger State the first water pump, the water outlet of the other end connection air conditioning terminal of first water pump, the 4th interface F of the First Heat Exchanger Connect the water inlet of air conditioning terminal, the 4th interface F connection first shut-off valve of second heat exchanger, first cut-off The other end of valve connects the 4th interface F of the First Heat Exchanger.
First compressor refrigeration system and the second compressor refrigeration system are additionally provided with air injection enthalpy-increasing branch, the jet Increasing enthalpy branch includes the second throttle part and the second shut-off valve, the First Heat Exchanger, the second interface B of the second heat exchanger and institute State the connection of the second shut-off valve, second shut-off valve connect with second throttle part, second throttle part with it is described The third interface C connection of economizer, the 4th interface D of the economizer are connect with the compressor.Compressor is formed in this way Air injection enthalpy-increasing branch forms compressor refrigeration system by the combination of the evaporator branch and air injection enthalpy-increasing branch of compressor Circulation.
Further include having expansion drum, the 4th interface F connection expansion drum of the First Heat Exchanger, the expansion drum it is another One end connects the water inlet of the air conditioning terminal.
Speed heat combined supply system of the invention can realize separate refrigeration, independent heating, independent water heating, in water heating when system It is cold, in water heating heating totally five operating modes:
1) separate refrigeration: under separate refrigeration mode, the second shut-off valve of air injection enthalpy-increasing branch road is closed, boiler branch On the second water pump close, the first water pump and the first shut-off valve on air conditioning terminal circuit are opened, first compressor refrigeration The compressor of system and the second compressor refrigeration system opens work.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Evaporator heat release cooling is flowed to, the refrigerant after cooling flows into economizer after throttle part throttles, and refrigerant is flowed to by economizer Heat exchanger, the refrigerant of low-temp low-pressure reduces water temperature in heat exchanger in heat exchanger interior suction thermal evaporation, cold after heat exchanger heat absorption Matchmaker flows to gas-liquid separator through four-way valve, then flows back to compressor by gas-liquid separator, completes the circulation of compressor refrigeration flow path.
The circulation of air conditioning terminal: under the drive of the first water pump, the hot water flowed back to from air conditioning terminal is by the first water pump stream Heat exchanger to low temperature carries out heat exchange, cooling of the hot water through heat exchanger, and the cold water that the hot water of high temperature changes into low temperature flows back to air-conditioning Freeze end.
By the cycle operation of above-mentioned each flow path, system completes the function of separate refrigeration, in two compressor tandem working moulds Fast-refrigerating is realized under formula.
2) individually heating: under independent heating mode, the second water pump of boiler branch road is closed, on air conditioning terminal circuit The first water pump and the first shut-off valve open, the compressor of first compressor refrigeration system and the second compressor refrigeration system Open work.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Heat exchanger is flowed to, the heat release in heat exchanger of the refrigerant of high temperature cools down, and increases water temperature in heat exchanger, the refrigerant warp after heat release cooling It crosses economizer and flows to throttle part or throttle part before evaporator, refrigerant flows to evaporator heat absorption after throttle part throttles Evaporation, the refrigerant after heat absorption evaporation flow to gas-liquid separator through four-way valve, finally flow back to compressor, complete compression mechanism hot flowpath Circulation.
In a heating mode, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, cold Matchmaker is divided into two after heat exchanger cools down, and flows to evaporator heat absorption evaporation by economizer all the way, and another way increases by jet Economizer heat absorption evaporation is flowed back to after the throttling of the shut-off valve and throttle part of enthalpy branch road, the refrigerant after heat absorption evaporation is through economizer Compressor is flowed back to, realizes enthalpy-increasing function.
The circulation of air conditioning terminal: under the drive of the first water pump, the cold water flowed back to from air conditioning terminal is by the first water pump stream Heat exchanger to high temperature carries out heat exchange, heating of the cold water through heat exchanger, and the hot water stream that the cold water of low temperature changes into high temperature is made the return trip empty tune End is heated.
By the cycle operation of above-mentioned each flow path, system completes the function of individually heating, in two compressor tandem working moulds Quickly heating is realized under formula.
3) independent water heating: under independent hot water model, the compressor of the first compressor refrigeration system, the first shut-off valve It is closed with the first water pump, the second water pump is opened.
The circulation stream of the compressor of second compressor refrigeration system are as follows: the refrigerant of high temperature and pressure flows to four-way by compressor Valve, then flows to the second heat exchanger by four-way valve, and the heat release in the second heat exchanger of the refrigerant of high temperature cools down, makes in the second heat exchanger Water temperature increases, and the refrigerant after heat release cooling flows to the throttle part before evaporator by economizer, and refrigerant passes through throttle part section Evaporator heat absorption evaporation is flowed to after stream, the refrigerant after heat absorption evaporation flows to gas-liquid separator through four-way valve, finally flows back to compressor, Complete the circulation of compression mechanism hot flowpath.
Under hot water model, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, Refrigerant is divided into two after the cooling of the second heat exchanger, flows to evaporator heat absorption evaporation by economizer all the way, and another way is passed through Economizer heat absorption evaporation, the refrigerant warp after heat absorption evaporation are flowed back to after the throttling of the shut-off valve and throttle part of air injection enthalpy-increasing branch road Economizer flows back to compressor, realizes enthalpy-increasing function.
In order to be suitable for low temperature environment, system uses the hot pump in low temp system of air injection enthalpy-increasing;In order to simultaneously refrigeration or Heating, system devise concatenated operating mode;In order to which separated water heating or air-conditioning exchange heat, system devises Working mould in parallel Formula;In order to improve the independence of unit function, system devises double-compressor and its corresponding refrigeration system;In order to avoid oil return The machine group end heat exchange mode of the problems such as hardly possible, pollution water quality, system design are water circulation.
Water heating flow path: under hot water model, the cold water inside boiler flows to second under the drive of the second water pump Heat exchanger carries out heat exchange, and cold water becomes to flow back to boiler by the second heat exchanger after hot water, realizes water heating function.
By the cycle operation of above-mentioned each flow path, system realizes the function of independent water heating.
4) freeze when water heating: in water heating under refrigeration mode, the first shut-off valve is closed, the second water pump and the first water pump It opens, the compressor of first compressor refrigeration system and the second compressor refrigeration system opens work.
The circulation of the compressor refrigeration flow path of first compressor refrigeration system: the refrigerant of high temperature and pressure flows to four by compressor Port valve then flows to evaporator heat release cooling by four-way valve, and the refrigerant after cooling flows into economizer after throttle part throttles, cold Matchmaker flows to heat exchanger by economizer, and the refrigerant of low-temp low-pressure reduces water temperature in heat exchanger in heat exchanger interior suction thermal evaporation, Refrigerant after heat exchanger heat absorption flows to gas-liquid separator through four-way valve, then flows back to compressor by gas-liquid separator, completes compression The circulation of mechanism cold flow path.
The circulation of air conditioning terminal: under the drive of the first water pump, the hot water flowed back to from air conditioning terminal is by the first water pump stream Heat exchanger to low temperature carries out heat exchange, cooling of the hot water through heat exchanger, and the cold water that the hot water of high temperature changes into low temperature flows back to air-conditioning Freeze end.
By the cycle operation of above-mentioned each flow path, system completes refrigerating function when water heating under refrigeration mode.
The circulation stream of the compressor of second compressor refrigeration system are as follows: the refrigerant of high temperature and pressure flows to four-way by compressor Valve, then flows to the second heat exchanger by four-way valve, and the heat release in the second heat exchanger of the refrigerant of high temperature cools down, makes in the second heat exchanger Water temperature increases, and the refrigerant after heat release cooling flows to the throttle part before evaporator by economizer, and refrigerant passes through throttle part section Evaporator heat absorption evaporation is flowed to after stream, the refrigerant after heat absorption evaporation flows to gas-liquid separator through four-way valve, finally flows back to compressor, Complete the circulation of compression mechanism hot flowpath.
Under hot water model, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, Refrigerant is divided into two after the cooling of the second heat exchanger, flows to evaporator heat absorption evaporation by economizer all the way, and another way is passed through Economizer heat absorption evaporation, the refrigerant warp after heat absorption evaporation are flowed back to after the throttling of the shut-off valve and throttle part of air injection enthalpy-increasing branch road Economizer flows back to compressor, realizes enthalpy-increasing function.
Water heating flow path: under hot water model, the cold water inside boiler flows to second under the drive of the second water pump Heat exchanger carries out heat exchange, and cold water becomes to flow back to boiler by the second heat exchanger after hot water, realizes the circulation of water heating flow path.
By the cycle operation of above-mentioned each flow path, system completes water heating function when water heating under refrigeration mode.
In short, realizing water heating when system under two compressor parallel operating modes by the cycle operation of above each flow path It is cold.
5) heat when water heating: in water heating under heating mode, the second water pump and the first water pump are opened, first pressure The compressor of contracting machine cooling system and the second compressor refrigeration system opens work.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Heat exchanger is flowed to, the heat release in heat exchanger of the refrigerant of high temperature cools down, and increases water temperature in heat exchanger, the refrigerant warp after heat release cooling It crosses economizer and flows to throttle part or throttle part before evaporator, refrigerant flows to evaporator heat absorption after throttle part throttles Evaporation, the refrigerant after heat absorption evaporation flow to gas-liquid separator through four-way valve, finally flow back to compressor, complete compression mechanism hot flowpath Circulation.
In a heating mode, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, cold Matchmaker is divided into two after heat exchanger cools down, and flows to evaporator heat absorption evaporation by economizer all the way, and another way increases by jet Economizer heat absorption evaporation is flowed back to after the throttling of the shut-off valve and throttle part of enthalpy branch road, the refrigerant after heat absorption evaporation is through economizer Compressor is flowed back to, realizes enthalpy-increasing function.
The circulation of air conditioning terminal: under the drive of the first water pump, the cold water flowed back to from air conditioning terminal is by the first water pump stream Heat exchanger to high temperature carries out heat exchange, heating of the cold water through heat exchanger, and the hot water stream that the cold water of low temperature changes into high temperature is made the return trip empty tune End is heated or is flowed back to boiler.
By the cycle operation of above-mentioned each flow path, two compressors are realized under parallel operation mode and are heated when water heating.
In this way, design of the system by above-mentioned relevant operation modes and circulation pattern, makes the speed heat trilogy supply scope of application Wider, faster, function is more by heat transfer rate, and performance is more stable, and resource utilization is higher.
The beneficial effects of the present invention are:
1) function is more: refrigeration and when water heating when unit has separate refrigeration, individually heating, independent water heating, water heating Heat five kinds of functions;
2) heat transfer rate is fast: double-compressor quickly can be heated or be freezed according to room conditioning demand;
3) system is reasonable: heat exchanger end is water circulation, can avoid heat exchanger end and is that the oil return of fluorine Cycle Unit is difficult, exchanges heat The problems such as device leakage and pollution water quality;
4) utilization rate is high: using double-compressor, system is more durable, as long as having compression function normal work, system function It will not all be lost due to partial fault;
5) applied widely: system uses air injection enthalpy-increasing technology, is applicable to low temperature environment.
Detailed description of the invention
Fig. 1 be it is of the invention can recuperation of heat combined supply system figure;
Fig. 2 is the separate refrigeration system diagram of invention;
Fig. 3 is the independent heating system figure of invention;
Fig. 4 is the independent water heating system diagram of invention;
Refrigerating system figure when Fig. 5 is the water heating of invention;
Heating system figure when Fig. 6 is the water heating of invention;
Fig. 7 is four-way valve Wiring port enlarged diagram of the invention;
Fig. 8 is economizer Wiring port enlarged diagram of the invention.
Specific embodiment
The present invention is further detailed with reference to the accompanying drawing.Wherein, arrows direction is in the channel in figure Fluid flow direction.
As shown in figs. 1,7 and 8, speed heat combined supply system, including the first compressor refrigeration system, the second compression mechanism Cooling system, First Heat Exchanger 19, the second heat exchanger 13, boiler 15, the first water pump 16 and the first shut-off valve 18, the boiler 5th interface C of 15 connection second heat exchangers 13 and the 6th interface D-shaped are at circulation stream, the boiler 15 and described the Second water pump 14 is installed between two heat exchangers 13;
First compressor refrigeration system and the second compressor refrigeration system structure are identical, first compressor refrigeration System includes compressor 1, gas-liquid separator 2, evaporator 3, first throttle component 5, economizer 6 and (the second pressure of four-way valve 22 Contracting machine cooling system correspondence includes compressor 21, gas-liquid separator 7, evaporator 8, first throttle component 9, economizer 12 and four Port valve 20), the compressor 1 (21) connect with the first interface D of the four-way valve 22 (20), first compressor refrigeration system The second interface C of the four-way valve 22 and four-way valve 20 of system and the second compressor refrigeration system is separately connected the First Heat Exchanger 19 With the first interface A of the second heat exchanger 13, the second interface B of the First Heat Exchanger 19 and the second heat exchanger 13 respectively with it is described The economizer 6 of first compressor refrigeration system and the second compressor refrigeration system is connected with the first interface A of economizer 12, The second interface B of the economizer 6 (12) is connect with the first throttle component 5 (9), the first throttle component 5 (9) and institute Evaporator 3 (8) connection is stated, the evaporator 3 (8) connect with the third interface E of the four-way valve 22 (20), the four-way valve 22 (20) the 4th interface S is connect with the gas-liquid separator 2 (7), and the gas-liquid separator 2 (7) and the compressor 1 (21) are even It connects, result in formation of the circulations of compressor evaporator branch;The third interface E of the First Heat Exchanger 19 and second heat exchange First water pump 16 is connected after the third interface E of device 13 is in parallel, the other end connection air conditioning terminal of first water pump 16 Water outlet, the water inlet of the 4th interface F connection air conditioning terminal of the First Heat Exchanger 19, the 4th of second heat exchanger 13 the Interface F connection first shut-off valve 18, the other end of first shut-off valve 18 connect the 4th of the First Heat Exchanger 19 Interface F.
First compressor refrigeration system and the second compressor refrigeration system are additionally provided with air injection enthalpy-increasing branch, the jet Increasing enthalpy branch includes the second throttle part 4 (10) and the second shut-off valve 23 (11), the First Heat Exchanger 19, the second heat exchanger 13 Second interface B connect with second shut-off valve 23 (11), second shut-off valve 23 (11) and second throttle part 4 (10) it connects, second throttle part 4 (10) connect with the third interface C of the economizer 6 (12), the economizer 6 (12) the 4th interface D is connect with the compressor 1 (21).The air injection enthalpy-increasing branch for forming compressor 1 (21) in this way, passes through pressure The combination of the evaporator branch and air injection enthalpy-increasing branch of contracting machine 1 (21), forms the circulation of compressor 1 (21) refrigeration system.
It further include having expansion drum 17, the 4th interface F connection expansion drum 17 of the First Heat Exchanger 19, the expansion The other end of tank 17 connects the water inlet of the air conditioning terminal.
All the above throttle part is all made of expansion valve or throttle valve.
Speed heat combined supply system of the invention can realize separate refrigeration, independent heating, independent water heating, in water heating when system It is cold, in water heating heating totally five operating modes:
1) separate refrigeration: as shown in Fig. 2, under separate refrigeration mode, the second shut-off valve 23 of air injection enthalpy-increasing branch road is closed It closes, second water pump 14 of 15 roads of boiler is closed, and the first water pump 16 and the first shut-off valve 18 on air conditioning terminal circuit are beaten It opens.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Evaporator heat release cooling is flowed to, the refrigerant after cooling flows into economizer after throttle part throttles, and refrigerant is flowed to by economizer Heat exchanger, the refrigerant of low-temp low-pressure reduces water temperature in heat exchanger in heat exchanger interior suction thermal evaporation, cold after heat exchanger heat absorption Matchmaker flows to gas-liquid separator through four-way valve, then flows back to compressor by gas-liquid separator, completes the circulation of compressor refrigeration flow path.
The circulation of air conditioning terminal: under the drive of the first water pump 16, the hot water flowed back to from air conditioning terminal is by the first water pump 16 heat exchangers for flowing to low temperature carry out heat exchange, cooling of the hot water through heat exchanger, and the cold water that the hot water of high temperature changes into low temperature flows back to Air conditioning terminal freezes.
By the cycle operation of above-mentioned each flow path, system completes the function of separate refrigeration, in two compressor tandem working moulds Fast-refrigerating is realized under formula.
2) individually heating: as shown in figure 3, under independent heating mode, the second water pump 14 of boiler branch road is closed, empty The first water pump 16 and the first shut-off valve 18 on the circuit of end is adjusted to open.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Heat exchanger is flowed to, the heat release in heat exchanger of the refrigerant of high temperature cools down, and increases water temperature in heat exchanger, the refrigerant warp after heat release cooling It crosses economizer and flows to first throttle component 5 or first throttle component 9 before evaporator, refrigerant flows to after throttle part throttles Evaporator heat absorption evaporation, the refrigerant after heat absorption evaporation flow to gas-liquid separator through four-way valve, finally flow back to compressor, complete compression The circulation of mechanism hot flowpath.
In a heating mode, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, cold Matchmaker is divided into two after heat exchanger cools down, and flows to evaporator heat absorption evaporation by economizer all the way, and another way increases by jet Economizer heat absorption evaporation is flowed back to after the throttling of the shut-off valve and throttle part of enthalpy branch road, the refrigerant after heat absorption evaporation is through economizer Compressor is flowed back to, realizes enthalpy-increasing function.
The circulation of air conditioning terminal: under the drive of the first water pump 16, the cold water flowed back to from air conditioning terminal is by the first water pump 16 heat exchangers for flowing to high temperature carry out heat exchange, heating of the cold water through heat exchanger, and the hot water that the cold water of low temperature changes into high temperature flows back to Air conditioning terminal is heated.
By the cycle operation of above-mentioned each flow path, system completes the function of individually heating, in two compressor tandem working moulds Quickly heating is realized under formula.
3) independent water heating: as shown in figure 4, under independent hot water model, the compressor of the first compressor refrigeration system 1, the first shut-off valve 18 and the first water pump 16 are closed, and the second water pump 14 is opened.
The circulation stream of the compressor 21 of second compressor refrigeration system are as follows: the refrigerant of high temperature and pressure is flowed to by compressor 21 Four-way valve 20, then flows to the second heat exchanger 13 by four-way valve 20, and the heat release in the second heat exchanger 13 of the refrigerant of high temperature cools down, makes Water temperature increases in second heat exchanger 13, and the refrigerant after heat release cooling flows to the first throttle portion before evaporator 8 by economizer 12 Part 9, refrigerant flow to the heat absorption evaporation of evaporator 8 after the throttling of first throttle component 9, and the refrigerant after heat absorption evaporation is through four-way valve 20 Gas-liquid separator 7 is flowed to, compressor 21 is finally flowed back to, completes the circulation of compression mechanism hot flowpath.
Under hot water model, when outdoor environment temperature is lower than certain value, the second shut-off valve of air injection enthalpy-increasing branch road 11 open, and refrigerant is divided into two after the cooling of the second heat exchanger 13, flow to the heat absorption of evaporator 8 by economizer 12 all the way and steam Hair, another way flow back to economizer 12 after the throttling of the second shut-off valve 11 of air injection enthalpy-increasing branch road and the second throttle part 10 Heat absorption evaporation, the refrigerant after heat absorption evaporation flow back to compressor 21 through economizer 12, realize enthalpy-increasing function.
Water heating flow path: under hot water model, the cold water of 15 the inside of boiler flows under the drive of the second water pump 14 Second heat exchanger 13 carries out heat exchange, and cold water becomes to flow back to boiler 15 by the second heat exchanger 13 after hot water, realizes water heating Function.
By the cycle operation of above-mentioned each flow path, system realizes the function of independent water heating.
4) freeze when water heating: as shown in figure 5, the first shut-off valve 18 is closed, the second water in water heating under refrigeration mode Pump 14 and the first water pump 16 are opened.
The circulation of 1 refrigeration circuit of compressor of first compressor refrigeration system: the refrigerant of high temperature and pressure is flowed to by compressor 1 Four-way valve 22 then flows to 3 heat release of evaporator cooling by four-way valve 22, and the refrigerant after cooling is after the throttling of first throttle component 5 Economizer 6 is flowed into, refrigerant flows to First Heat Exchanger 19 by economizer 6, and the refrigerant of low-temp low-pressure is in 19 interior suction of First Heat Exchanger Thermal evaporation reduces water temperature in First Heat Exchanger 19, and the refrigerant after the heat absorption of First Heat Exchanger 19 flows to gas-liquid through four-way valve 22 Separator 2 then flows back to compressor 1 by gas-liquid separator 2, completes the circulation of 1 refrigeration circuit of compressor.
The circulation of air conditioning terminal: under the drive of the first water pump 16, the hot water flowed back to from air conditioning terminal is by the first water pump 16 First Heat Exchangers 19 for flowing to low temperature carry out heat exchange, and cooling of the hot water through First Heat Exchanger 19, the hot water of high temperature changes into low The cold water of temperature flows back to air conditioning terminal and freezes.
By the cycle operation of above-mentioned each flow path, system completes refrigerating function when water heating under refrigeration mode.
The circulation stream of the compressor 21 of second compressor refrigeration system are as follows: the refrigerant of high temperature and pressure is flowed to by compressor 21 Four-way valve 20, then flows to the second heat exchanger 13 by four-way valve 20, and the heat release in the second heat exchanger 13 of the refrigerant of high temperature cools down, makes Water temperature increases in second heat exchanger 13, and the refrigerant after heat release cooling flows to the first throttle portion before evaporator 8 by economizer 12 Part 9, refrigerant flow to the heat absorption evaporation of evaporator 8 after the throttling of first throttle component 9, and the refrigerant after heat absorption evaporation is through four-way valve 20 Gas-liquid separator 7 is flowed to, compressor 21 is finally flowed back to, completes the circulation that compressor 21 heats flow path.
Under hot water model, when outdoor environment temperature is lower than certain value, the second shut-off valve of air injection enthalpy-increasing branch road 11 open, and refrigerant is divided into two after the cooling of the second heat exchanger 13, flow to the heat absorption of evaporator 8 by economizer 12 all the way and steam Hair, another way flow back to economizer 12 after the throttling of the second shut-off valve 11 of air injection enthalpy-increasing branch road and the second throttle part 10 Heat absorption evaporation, the refrigerant after heat absorption evaporation flow back to compressor 21 through economizer 12, realize enthalpy-increasing function.
Water heating flow path: under hot water model, the cold water of 15 the inside of boiler flows under the drive of the second water pump 14 Second heat exchanger 13 carries out heat exchange, and cold water becomes to flow back to boiler 15 by the second heat exchanger 13 after hot water, realizes water heating The circulation of flow path.
By the cycle operation of above-mentioned each flow path, system completes water heating function when water heating under refrigeration mode.
In short, realizing water heating when system under two compressor parallel operating modes by the cycle operation of above each flow path It is cold.
5) it is heated when water heating: as shown in fig. 6, in water heating under heating mode, the second water pump 14 and the first water pump 16 It opens.
The circulation stream of two compressors is equal are as follows: the refrigerant of high temperature and pressure flows to four-way valve by compressor, then by four-way valve Heat exchanger is flowed to, the heat release in heat exchanger of the refrigerant of high temperature cools down, and increases water temperature in heat exchanger, the refrigerant warp after heat release cooling It crosses economizer and flows to first throttle component 5 or first throttle component 9 before evaporator, refrigerant flows to after throttle part throttles Evaporator heat absorption evaporation, the refrigerant after heat absorption evaporation flow to gas-liquid separator through four-way valve, finally flow back to compressor, complete compression The circulation of mechanism hot flowpath.
In a heating mode, when outdoor environment temperature is lower than certain value, the shut-off valve of air injection enthalpy-increasing branch road is opened, cold Matchmaker is divided into two after heat exchanger cools down, and flows to evaporator heat absorption evaporation by economizer all the way, and another way increases by jet Economizer heat absorption evaporation is flowed back to after the throttling of the shut-off valve and throttle part of enthalpy branch road, the refrigerant after heat absorption evaporation is through economizer Compressor is flowed back to, realizes enthalpy-increasing function.
The circulation of air conditioning terminal: under the drive of the first water pump 16, the cold water flowed back to from air conditioning terminal is by the first water pump 16 heat exchangers for flowing to high temperature carry out heat exchange, heating of the cold water through heat exchanger, and the hot water that the cold water of low temperature changes into high temperature flows back to Air conditioning terminal is heated or is flowed back to boiler.
By the cycle operation of above-mentioned each flow path, two compressors are realized under parallel operation mode and are heated when water heating.
In this way, design of the system by above-mentioned relevant operation modes and circulation pattern, makes the speed heat trilogy supply scope of application Wider, faster, function is more by heat transfer rate, and performance is more stable, and resource utilization is higher.
As described above, only presently preferred embodiments of the present invention, when cannot be limited the scope of implementation of the present invention with this, All still belong to this hair according to simple equivalent changes and modifications made by scope of the present invention patent and invention description content generally In the range of bright patent covers.

Claims (8)

1. speed heat combined supply system, which is characterized in that including the first compressor refrigeration system, the second compressor refrigeration system, One heat exchanger, the second heat exchanger, boiler, the first water pump and the first shut-off valve, the boiler connect second heat exchanger The 5th interface and the 6th interface formed circulation stream, the second water is installed between the boiler and second heat exchanger Pump, it includes compressor, gas-liquid separation that first compressor refrigeration system and the second compressor refrigeration system structure are identical Device, evaporator, first throttle component, economizer and four-way valve, the compressor are connect with the first interface of the four-way valve, institute The second interface for stating the four-way valve of the first compressor refrigeration system and the second compressor refrigeration system is separately connected described first and changes The second interface of the first interface of hot device and the second heat exchanger, the First Heat Exchanger and the second heat exchanger is respectively with described first The first interface of the economizer of compressor refrigeration system and the second compressor refrigeration system connects, and the second of the economizer Interface is connect with the first throttle component, and the first throttle component is connect with the evaporator, the evaporator with it is described The third interface of four-way valve connects, and the 4th interface of the four-way valve is connect with the gas-liquid separator, the gas-liquid separator It is connect with the compressor;It is connected after the third interface of the First Heat Exchanger is in parallel with the third interface of second heat exchanger First water pump, the water outlet of the other end connection air conditioning terminal of first water pump, the 4th of the First Heat Exchanger connect The water inlet of mouth connection air conditioning terminal, the 4th interface connection first shut-off valve of second heat exchanger, described first section Only the other end of valve connects the 4th interface of the First Heat Exchanger.
2. speed heat combined supply system according to claim 1, which is characterized in that first compressor refrigeration system and Two compressor refrigeration systems are additionally provided with air injection enthalpy-increasing branch, and the air injection enthalpy-increasing branch includes the second throttle part and the second cut-off Valve, the First Heat Exchanger, the second heat exchanger second interface connect with second shut-off valve, second shut-off valve and institute The connection of the second throttle part is stated, second throttle part connect with the third interface of the economizer, and the of the economizer Four interfaces are connect with the compressor.
3. speed heat combined supply system according to claim 1 or 2, which is characterized in that it further include having expansion drum, described first 4th interface of heat exchanger connects the expansion drum, and the other end of the expansion drum connects the water inlet of the air conditioning terminal.
4. speed heat combined supply system according to claim 2, which is characterized in that under separate refrigeration mode, described first Second shut-off valve of the air injection enthalpy-increasing branch road of compressor refrigeration system and the second compressor refrigeration system is closed, and the second water pump closes It closes, the first water pump and the first shut-off valve are opened.
5. speed heat combined supply system according to claim 2, which is characterized in that under independent heating mode, the second water pump It closes, the first water pump and the first shut-off valve are opened.
6. speed heat combined supply system according to claim 2, which is characterized in that under independent hot water model, the first pressure The compressor of contracting machine cooling system, the first shut-off valve and the first water pump are closed, and the second water pump is opened.
7. speed heat combined supply system according to claim 2, which is characterized in that in water heating under refrigeration mode, first Shut-off valve is closed, and the second water pump and the first water pump are opened.
8. speed heat combined supply system according to claim 2, which is characterized in that in water heating under heating mode, second Water pump and the first water pump are opened.
CN201610242848.4A 2016-04-18 2016-04-18 Speed heat combined supply system Active CN105910317B (en)

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CN106766369A (en) * 2016-12-28 2017-05-31 广东高而美制冷设备有限公司 A kind of air-conditioning water manufacturing system
CN112161350B (en) * 2020-09-15 2022-02-22 珠海格力电器股份有限公司 Air conditioning unit with adjustable heat exchange rate and control method thereof
CN114754429B (en) * 2022-03-07 2024-05-28 江苏科技大学 Building hot water and air conditioning system and working method thereof
CN115875762B (en) * 2022-10-13 2024-09-03 珠海格力电器股份有限公司 Air energy hot water air conditioning assembly and control system thereof

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CN205718063U (en) * 2016-04-18 2016-11-23 广东高而美制冷设备有限公司 A kind of fast hot air conditioner circulating system

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CN202955907U (en) * 2012-11-15 2013-05-29 苏宇贵 Overlapped type heat pump high-temperature hot water machine
CN104848590A (en) * 2015-05-11 2015-08-19 李文胜 Tri-generation WSHP (Water Source Heat Pump) set
CN205718063U (en) * 2016-04-18 2016-11-23 广东高而美制冷设备有限公司 A kind of fast hot air conditioner circulating system

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