CN104279724A - Heat pump control method and heat pump control system of energy-saving air conditioner - Google Patents
Heat pump control method and heat pump control system of energy-saving air conditioner Download PDFInfo
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- CN104279724A CN104279724A CN201410421281.8A CN201410421281A CN104279724A CN 104279724 A CN104279724 A CN 104279724A CN 201410421281 A CN201410421281 A CN 201410421281A CN 104279724 A CN104279724 A CN 104279724A
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- water tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0032—Systems storing energy during the night
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/02—System or Device comprising a heat pump as a subsystem, e.g. combined with humidification/dehumidification, heating, natural energy or with hybrid system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a heat pump control method and a heat pump control system of an energy-saving air conditioner. According to the heat pump control method and the heat pump control system, cold is accumulated at a power utilization valley period and low electric charge all day long, a refrigerating unit operates at full load in the cold accumulation process, and at this moment, both the refrigerating unit and a cold accumulating pump of the system operate at full load, so that highest energy efficiency in the operation process of the refrigerating unit of the air conditioner system can be kept, redundant electric energy at the valley period can be sufficiently utilized, and the water temperature of a cold accumulating water tank can be reduced to a set temperature by using the cold accumulating pump; cold is released at a power utilization peak period and high electric charge all day long, both the refrigerating unit and the cold accumulating pump of the air conditioner are powered off in the cold releasing process, and only a cold pump is powered on to supply cold by the cold accumulating water tank. According to the heat pump control method and the heat pump control system, the cold is released according to an actual load condition of a building in the cold supply process, stored cold energy can be furthest utilized, the phenomenon of 'wasting one's talent on a petty job' of the air conditioner system can be avoided, and the operation cost of the central air conditioner is greatly lowered.
Description
Technical field
The present invention relates to air conditioner energy saving field, particularly a kind of energy-saving type air conditioner heat pump control method and system.
Background technology
Along with developing rapidly of economic construction, central air-conditioning is used in hotel, market, hospital and the large public building such as office building, school increasingly extensively.And central air-conditioning power consumption, the ratio accounting for building energy consumption is also increasing, and the whole society is to energy-saving and environmental protection pay attention to day by day, and energy-saving and environmental protection have become the essential condition of sustainable development.
Central air conditioner system when designing, all with peak value weather conditions and maximal workload for foundation, carry out calculating and lectotype selection.And annual central air-conditioning actual motion load, most of time is lower than design load, but central air-conditioning is in peak load running status mostly.Due to air-conditioning usage spaces such as hotel, market, hospital and office buildings, along with seasonal climate, outdoor temperature, the indoor stream of people and other thermal source to affect load variations comparatively large, cause the central air conditioner system operation at part load time longer, and system energy efficiency is lower.
Air-conditioning system load changes with outdoor weather condition, occurs that the time of peak load is little the whole year.Data shows, the temporal frequency of the annual load of central air-conditioning as shown in Figure 5:
As can be seen from Figure 5, annual 1-12 month load mostly concentrate on peak load 50% ~ 80% between.
Between floors, the power consumption of central air conditioner system accounts for more than 60% of building power consumption.At present, there is the situation of a lot of energy waste in most of central air conditioner system:
(1) because air conditioning design load calculation is improper, cause Central air-conditioning unit Capacity Selection excessive;
(2) even if unit optimum selection is suitable, but the time of unit whole year more than 60% run under 50%-80% load condition, cause system fading margin underaction;
(3) " low load with strong power " during air conditioner load ebb, forming the situation of fallback, is the significant wastage to energy consumption;
(4) the auto-control energy-saving control design case of system is comparatively coarse, does not even do to consider;
(5) constant flow water system of water pump operation is also serious for the waste of electric energy and the miscarriage of system also can cause the waste etc. of operating cost.
Summary of the invention
As can be seen here, prior art is not considered central air-conditioning actual load amount and causes central air conditioner system to be in the lower state of efficiency utilization, causes central air conditioner system to there is the situation of a lot of energy waste.
Therefore, in order to overcome the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of energy-saving type air conditioner heat pump control method and system, and it can make central air-conditioning energy effect and Energy Efficiency Ratio increase substantially.
For solving the problems of the technologies described above, energy-saving type air conditioner heat pump control method of the present invention comprises: 1) in the electricity consumption paddy period, controller first control to close let cool closed circuit and with the frequency converter letting cool pump and be connected, control again to open refrigeration cycle and be installed on the cold-storage pump on described refrigeration cycle, and send operating instruction to refrigeration unit, described refrigeration unit is freezed, and cold water carries out collection cold-storage by bringing cold-storage water tank into by described cold-storage pump after described refrigeration cycle; 2) in the electricity consumption peak period, first described controller controls to cut out described refrigeration cycle, described cold-storage pump and described refrigeration unit, again control open described in let cool closed circuit, and send operating instruction to described frequency converter, being operated in letting cool pump described in described letting cool on closed circuit by its drive unit, letting cool closed circuit described in being passed through from described cold-storage water tank by cold water and carrying toward cooling place;
When be connected with described controller let cool temperature sensor detect cooling premise temperature do not reach setting value time, described controller controls to let cool the device that lets cool that closed circuit is connected let cool described cooling place with described; When described let cool temperature sensor detect described cooling premise temperature reach setting value time, let cool device described in described controller controls and close and let cool.
For solving the problems of the technologies described above, energy-saving type air conditioner control system for heat pump of the present invention comprises: the refrigeration unit be connected with cold-storage water tank by refrigeration cycle; To be installed on described refrigeration cycle and to control the first switch module that described refrigeration cycle opens or closes, having cold-storage pump at the device on cold water pipeline that enters of this refrigeration cycle; Be positioned at cooling place and let cool device by what let cool that closed circuit is connected with described cold-storage water tank; To let cool described in being installed on closed circuit and to let cool the second switch assembly that closed circuit opens or closes described in controlling, the device in water lines that lets cool letting cool closed circuit described in this lets cool pump, it is connected with frequency converter, wherein, is provided with and lets cool temperature sensor in described cooling place; And a controller, its control described refrigeration unit, described first switch module, described cold-storage pump, described in let cool device, described second switch assembly, described frequency converter, described in let cool temperature sensor and carry out relevant work.
Compared with prior art, the present invention has following beneficial effect: the energy-saving type air conditioner heat pump control method in the present invention and system, the whole day electricity consumption paddy period, the charge for electricity is small time carry out cold-storage (when every day 23-6 time).During cold-storage, refrigeration unit oepration at full load, at this moment refrigeration unit, the whole load operation of cold-storage pump of system, most high energy efficiency when the refrigeration unit of air-conditioning system can be kept to run, make full use of the rich electric energy of low-valley interval, by cold-storage pump, the water temperature of cold-storage water tank is reduced to the temperature of setting; The whole day electricity consumption peak period, the electric lighting bill is heavy time let cool.Let cool Space-Time Modulation cold group, cold-storage pump all stops, only an open cold pump utilizes cold-storage water tank to carry out cooling.Actual conditions then according to building loading during cooling let cool, and farthest utilize the cold energy stored, avoid the phenomenon of air-conditioning system low load with strong power, significantly save the operating cost of central air-conditioning.
Accompanying drawing explanation
Fig. 1 is energy-saving type air conditioner control system for heat pump structural representation of the present invention;
Fig. 2 is energy-saving type air conditioner control system for heat pump water level detecting schematic diagram of the present invention;
Fig. 3 is energy-saving type air conditioner control system for heat pump cold-storage schematic diagram of the present invention;
Fig. 4 is that energy-saving type air conditioner control system for heat pump of the present invention lets cool schematic diagram;
Fig. 5 is the temporal frequency schematic diagram of the annual load of existing central air-conditioning;
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-cold-storage water tank, 2-controller, 3-cold-storage pump, 4-refrigeration cycle, 5-enters cold water pipeline, 6-first time cold water pipeline, 7-refrigeration unit, 8-cold-storage butterfly valve, 9-cold-storage backwater dish valve, 10-water level lower limit mark, 11-water level upper limit mark, 12-level sensor, 13-cold-storage temperature sensor, 14-moisturizing pipeline, 15-moisturizing magnetic valve, 16-lets cool closed circuit, 17-lets cool water lines, 18-second time cold water pipeline, 19-lets cool butterfly valve, 20-lets cool backwater butterfly valve, 21-frequency converter, 22-lets cool pump, 23-lets cool device, 24-fan coil controller, 25-blower fan, 26-lets cool temperature sensor, 27-guidance panel, 28-coil pipe magnetic valve, 29-cooling place, 30-pressure sensor, 31-reflux temperature sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Clearly represent unless otherwise other, otherwise in whole description and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or part, and do not get rid of other element or other part.
As shown in Figure 1, according to the energy-saving type air conditioner control system for heat pump of the specific embodiment of the invention, comprise: refrigeration unit 7, refrigeration cycle 4, cold-storage water tank 1, cold-storage pump 3, first switch module, let cool closed circuit 16, let cool device 23, controller 2, second switch assembly, frequency converter 21, let cool temperature sensor 26, level sensor 12 and cold-storage temperature sensor 13, refrigeration unit 7 is connected with cold-storage water tank 1 by refrigeration cycle 4, first switch module to be installed on refrigeration cycle 4 and to control refrigeration cycle 4 by the first switch module and opens or closes, more specifically, this first switch module comprise be installed on refrigeration cycle 4 to enter on cold water pipeline 5 and to control on the cold-storage dish valve 8 that opens or closes into cold water pipeline 5 and the first time cold water pipeline 6 being installed on refrigeration cycle 4 and control that first time cold water pipeline 6 open or close cold-storage backwater dish valve 9, and have cold-storage pump 3 at the device on cold water pipeline 5 that enters of refrigeration cycle 4, let cool device 23 to be connected with cold-storage water tank 1 by letting cool closed circuit 16 and to be positioned at cooling place 29, this lets cool device 23 and comprises: with let cool closed circuit 16 let cool the coil pipe magnetic valve 28 that water end (W.E.) is connected, the fan coil controller 24 be connected with coil pipe magnetic valve 28, and the blower fan 25 be connected with fan coil controller 24 respectively and guidance panel 27, second switch assembly apparatus opens or closes in let cool on closed circuit 16 and control to let cool closed circuit 16, more specifically, this second assembly comprise be installed on let cool closed circuit 16 to let cool in water lines 17 and control to let cool water lines 17 opens or closes let cool dish valve 19 and be installed on let cool closed circuit 16 second time cold water pipeline 18 on and control that second time cold water pipeline 18 open or close let cool backwater dish valve 20, and let cool pump 22 at the device in water lines 17 that lets cool letting cool closed circuit 16, it is connected with frequency converter 21, wherein, be provided with in cooling place 29 and let cool temperature sensor 26, and a controller 2, it controls refrigeration unit 7, first switch module, cold-storage pump 3, let cool device 23, second switch assembly, frequency converter 21, let cool temperature sensor 26 carries out relevant work.
Water level lower limit mark 10 and water level upper limit mark 11 is provided with in cold-storage water tank 1, water level lower limit mark 10 and water level upper limit mark 11 are provided with level sensor 12 and are provided with cold-storage temperature sensor 13 in cold-storage water tank 1, level sensor 12 is connected with controller 2 with cold-storage temperature sensor 13, the moisturizing pipeline 14 be connected with described cold-storage water tank 1 is provided with in cold-storage water tank 1 outside, which is provided with moisturizing magnetic valve 15, it is connected with controller 2.
In order to better safeguard letting cool closed circuit 16, have pressure sensor 30 and device has reflux temperature sensor 18 on second time cold water pipeline 18 at the device in water lines 17 that lets cool letting cool closed circuit 16, pressure sensor 30 is connected with described controller 2 with reflux temperature sensor 18; Wherein, pressure sensor 30 lets cool the hydraulic pressure letting cool water lines 17 of closed circuit 16 for detecting, and it can be used as feedback signal to pass to frequency converter 21, more specifically, when letting cool pump 22 rotating speed and being higher, let cool when having flowed exceed the actual required amount of letting cool, the hydraulic pressure letting cool water lines 17 is higher, and the pressure feedback signal that frequency converter 21 receives pressure sensor 30 is just higher, and frequency converter 21 will reduce frequency automatically, make to let cool pump 22 and reduce rotating speed, thus reduce the amount of letting cool; When letting cool pump 22 rotating speed and being lower, when letting cool flow lower than the amount of letting cool needed for reality, the hydraulic pressure letting cool water lines 17 is lower, the pressure feedback signal that frequency converter 21 receives pressure sensor 30 is just lower, frequency converter 21 is by automatic elevated frequencies, make to let cool pump 22 and improve rotating speed, thus add the amount of letting cool.
In order to the beneficial effect better understanding the use of the embodiment of the present invention and control method, function and play, therefore, below in detail energy-saving type air conditioner heat pump control method of the present invention is described, this control method comprises:
The water lev el control of cold-storage water tank 1
As shown in Figure 2, before cold-storage water tank 1 carries out cold-storage and lets cool, the detection of water level must be carried out to cold-storage water tank 1, concrete step is: whether the water level that controller 2 detects cold-storage water tank 1 by level sensor 12 reaches water level lower limit mark 10, if fruit water level is lower than water level lower limit mark 10, controller 2 controls to open moisturizing magnetic valve 15 to carry out carrying out moisturizing to cold-storage water tank 1, during higher than water level upper limit mark 11, stop moisturizing, wherein, when water level is higher than water level lower limit mark 10, cold-storage water tank 1 just can carry out cold-storage or let cool; Otherwise, do not allow cold-storage or let cool.
Cold-storage water tank 1 carries out cold-storage
As shown in Figure 3, in the electricity consumption paddy period, when the cold water temperature that cold-storage temperature sensor 13 detects cold-storage water tank 1 is higher than 5.5 DEG C, controller 2 first control to close let cool closed circuit 16 and with the frequency converter 21 letting cool pump 22 and be connected, control again to open refrigeration cycle 4 and be installed on the cold-storage pump 3 on refrigeration cycle 4, and send operating instruction to refrigeration unit 7, refrigeration unit 7 is freezed, cold water carries out collection cold-storage by bringing cold-storage water tank 1 into by cold-storage pump 3 after refrigeration cycle 4, after detecting that the cold water temperature of cold-storage water tank 1 is lower than 5.0 DEG C, cold-storage can be stopped,
The cold-storage period is the electricity consumption paddy period, and namely commercial power the charge for electricity is small period, now system carries out cold-storage at full capacity, can ensure the most high energy efficiency of central air conditioner system, also can improve the utilization rate of electrical network electric energy and reduce the operating cost of whole system.
Cold-storage water tank 1 lets cool
As shown in Figure 4, in the electricity consumption peak period, first controller 2 controls to cut out refrigeration cycle 4, cold-storage pump 3 and refrigeration unit 7, control to open again to let cool closed circuit 16, and send operating instruction to frequency converter 21, operated in letting cool the pump 22 that lets cool on closed circuit 16 by its drive unit, cold water is carried toward cooling place 29 by letting cool closed circuit 16 from cold-storage water tank 1;
When be connected with controller 2 let cool temperature sensor 26 detect cooling place 29 temperature do not reach setting value time, controller 2 controls and lets cool the device 23 pairs of cooling places 29 that let cool that closed circuit 16 is connected and let cool; When let cool temperature sensor 26 detect cooling place 29 temperature reach setting value time, controller 2 control let cool device 23 close let cool.
Wherein, be positioned at cooling place 29 let cool that device 23 can be different model let cool device 23, device 23 is let cool disclosed in the embodiment of the present invention, work is carried out according to the instruction of guidance panel 27 by fan coil controller 24, after user sends operational order with guidance panel 27 pairs of blower fans 25 and coil pipe magnetic valve 28, fan coil controller 24 opens coil pipe magnetic valve 28, such cold water controls to open blower fan 25 by fan coil controller 24 and brings cooling place 29 into and carry out heat exchange, when letting cool temperature sensor 26 and detecting that the temperature in cooling place 29 reaches user's setting value, controller 2 sends instructions and controls coil pipe magnetic valve 28 to fan coil controller 24 and cut out cold water and enter.
Like this, the cold water in cold-storage water tank 1 just cannot enter cooling place 29, and because this reducing the demand to cold water, 2, frequency converter can regulate the cold feed amount in cold-storage water tank 1, realizes the object supplied water according to cooling place 29 actual demand amount.
Detect that temperature rises to after higher than user's setting value when letting cool temperature sensor 26, controller 2 sends instructions and controls coil pipe magnetic valve 28 to fan coil controller 24 and open cold water and enter, and again send cold in cooling place 29.Along with the unlatching quantity of coil pipe magnetic valve 28 is different, let cool letting cool water lines 17 and can carrying out the different flows that lets cool as required and export of closed circuit 16, save the energy.
Letting cool the period is the electricity consumption peak period, lets cool when namely the electric lighting bill is heavy.Actual conditions then according to building loading during cooling let cool, and farthest utilize the cold energy stored, avoid the phenomenon of air-conditioning system low load with strong power, significantly save the operating cost of central air-conditioning.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Therefore, although this description with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (8)
1. an energy-saving type air conditioner heat pump control method, is characterized in that, comprising:
1) in the electricity consumption paddy period, controller first control to close let cool closed circuit and with the frequency converter letting cool pump and be connected, control again to open refrigeration cycle and be installed on the cold-storage pump on described refrigeration cycle, and send operating instruction to refrigeration unit, described refrigeration unit is freezed, and cold water carries out collection cold-storage by bringing cold-storage water tank into by described cold-storage pump after described refrigeration cycle;
2) in the electricity consumption peak period, first described controller controls to cut out described refrigeration cycle, described cold-storage pump and described refrigeration unit, again control open described in let cool closed circuit, and send operating instruction to described frequency converter, being operated in letting cool pump described in described letting cool on closed circuit by its drive unit, letting cool closed circuit described in being passed through from described cold-storage water tank by cold water and carrying toward cooling place;
When be connected with described controller let cool temperature sensor detect cooling premise temperature do not reach setting value time, described controller controls to let cool the device that lets cool that closed circuit is connected let cool described cooling place with described; When described let cool temperature sensor detect described cooling premise temperature reach setting value time, let cool device described in described controller controls and close and let cool.
2. method according to claim 1, it is characterized in that, before described cold-storage water tank carries out cold-storage or lets cool, also comprise the water level detecting step to described cold-storage water tank, when described controller reaches water level lower limit mark by the water level that level sensor detects described cold-storage water tank, described cold-storage water tank just can carry out cold-storage or let cool.
3. an energy-saving type air conditioner control system for heat pump, is characterized in that, comprising:
By the refrigeration unit that refrigeration cycle is connected with cold-storage water tank; To be installed on described refrigeration cycle and to control the first switch module that described refrigeration cycle opens or closes, having cold-storage pump at the device on cold water pipeline that enters of this refrigeration cycle;
Be positioned at cooling place and let cool device by what let cool that closed circuit is connected with described cold-storage water tank; To let cool described in being installed on closed circuit and to let cool the second switch assembly that closed circuit opens or closes described in controlling, the device in water lines that lets cool letting cool closed circuit described in this lets cool pump, it is connected with frequency converter, wherein, is provided with and lets cool temperature sensor in described cooling place; And
One controller, its control described refrigeration unit, described first switch module, described cold-storage pump, described in let cool device, described second switch assembly, described frequency converter, described in let cool temperature sensor and carry out relevant work.
4. system according to claim 3, it is characterized in that, water level lower limit mark and water level upper limit mark is provided with in described cold-storage water tank, described water level lower limit mark and described water level upper limit mark are provided with level sensor and are provided with cold-storage temperature sensor in described cold-storage water tank, described level sensor is connected with described controller with described cold-storage temperature sensor.
5. system according to claim 3, is characterized in that, described cold-storage water tank outside is provided with the moisturizing pipeline be connected with described cold-storage water tank, and which is provided with moisturizing magnetic valve, it is connected with controller.
6. system according to claim 3, is characterized in that, described in let cool closed circuit the device in water lines that lets cool have pressure sensor and have reflux temperature sensor returning device on cold water pipeline, it is connected with described controller.
7. according to the system described in any one of claim 3-6, it is characterized in that, the described device that lets cool comprises: with described let cool closed circuit let cool the coil pipe magnetic valve that water end (W.E.) is connected, the fan coil controller be connected with described coil pipe magnetic valve, and the blower fan be connected with described fan coil controller respectively and guidance panel.
8. system according to claim 3, it is characterized in that, described first switch module comprises and is installed on entering on cold water pipeline and entering described in controlling on the cold-storage dish valve that cold water pipeline opens or closes and the first go back to cold water pipeline being installed on described refrigeration cycle and to control the cold-storage backwater dish valve that first time cold water pipeline open or close of described refrigeration cycle; Described second assembly comprise be installed on described in let cool closed circuit to let cool in water lines and on the second time cold water pipeline letting cool dish valve and let cool closed circuit described in being installed on letting cool that water lines opens or closes described in controlling and control that described second time cold water pipeline open or close let cool backwater dish valve.
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| CN201410421281.8A CN104279724A (en) | 2014-08-25 | 2014-08-25 | Heat pump control method and heat pump control system of energy-saving air conditioner |
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| CN109960874A (en) * | 2019-03-25 | 2019-07-02 | 华南理工大学建筑设计研究院有限公司 | A kind of cold accumulation system operation method based on performance driving economy |
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