CN116358141A - Air conditioner refrigeration control system and control method thereof - Google Patents
Air conditioner refrigeration control system and control method thereof Download PDFInfo
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- CN116358141A CN116358141A CN202310436105.0A CN202310436105A CN116358141A CN 116358141 A CN116358141 A CN 116358141A CN 202310436105 A CN202310436105 A CN 202310436105A CN 116358141 A CN116358141 A CN 116358141A
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- evaporator
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- electromagnetic valve
- condensed water
- way electromagnetic
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an air conditioner refrigeration control system and a control method thereof. The control method comprises the following steps: under the normal working state, low-temperature low-pressure refrigerant enters a first evaporator and a second evaporator, condensed water is generated on the surfaces of the first evaporator and the second evaporator, and even frost is formed; controlling the refrigerant flowing states of the first three-way electromagnetic valve and the second three-way electromagnetic valve to enable the first evaporator or the second evaporator to work normally, enabling the second evaporator or the first evaporator to enter a defrosting state, and achieving defrosting without stopping; the melted condensed water after frosting flows into the vacuum inner container, the low-temperature high-pressure refrigerant flowing out of the condenser is controlled to enter the heat exchange tube of the fin type heat exchanger, heat exchange is carried out on the condensed water in the vacuum inner container, and the temperature of the refrigerant is reduced by utilizing the cold energy of the condensed water. The invention can be switched between three states of normal working state, defrosting state and heat exchange tube working state, thereby not only realizing defrosting without stopping machine; and the condensed water generated during defrosting is fully utilized.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment refrigeration, in particular to an air conditioner refrigeration control system and a control method thereof.
Background
The refrigerant is a working substance for performing a refrigeration cycle in a refrigeration apparatus, and the principle of the operation is that the refrigerant absorbs heat of a substance to be cooled in an evaporator and evaporates, and the absorbed heat is transferred to ambient air or water in a condenser and cooled to liquid, and the refrigerant is reciprocally circulated, whereby the refrigeration is performed by a change of state. Common ultra-low temperature refrigerants are trifluoro-chloromethane (R13), tetrafluoromethane (R14), and trifluoro-methane (R23).
When the air conditioner works in refrigeration, low-temperature refrigerant enters the evaporator, and the evaporator absorbs external heat in the working process, condensed water and even frost are generated on the surface of the air conditioner. The temperature of the condensed water is lower, the surface temperature of the common evaporator is 7-12 ℃, and the temperature of the condensed water is 10-15 ℃, so that the condensed water has a certain cold energy, and in the occasion of air wetting, more condensed water and frost are generated during the running of the air conditioner, and the water temperature of melting after frosting is lower and can be utilized.
However, in the prior art, the air-conditioning refrigeration system does not fully utilize the cold energy of the condensed water, and the condensed water generated during defrosting cannot be utilized, and meanwhile, the defrosting cannot be performed without stopping the machine.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an air conditioner refrigeration control system and a control method thereof, which can defrost without stopping the machine and reduce the fluctuation of indoor temperature; meanwhile, condensed water generated during defrosting is fully utilized, and the energy utilization rate is improved.
In order to achieve the above object, the present invention provides an air conditioner refrigeration control system, comprising: the third three-way electromagnetic valve is connected to the outlet of the condenser, the outlet of the third three-way electromagnetic valve is respectively connected with a first evaporator and a second evaporator which are positioned in different branches, the inlet of the first evaporator is communicated with the first three-way electromagnetic valve, and the inlet of the second evaporator is communicated with the second three-way electromagnetic valve;
a water receiving disc for receiving condensed water on the outer surfaces of the evaporators is arranged below the first evaporator and the second evaporator, the water receiving disc comprises a shell, a condensed water inlet for receiving the condensed water on the outer surfaces of the first evaporator and the second evaporator is arranged at the upper end of the shell, a vacuum inner container for containing the condensed water is embedded in the shell, a fin type heat exchanger is arranged in the vacuum inner container, and an overflow valve is arranged at the upper end of the vacuum inner container;
the fin type heat exchanger comprises fins and heat exchange tubes penetrating through the fins, wherein the inlets of the heat exchange tubes are communicated with the outlets of the third three-way electromagnetic valve, and the outlets of the heat exchange tubes are communicated with the inlets of the first three-way electromagnetic valve and the second three-way electromagnetic valve.
The control method of the air conditioner refrigeration control system is suitable for the air conditioner refrigeration control system and is characterized by comprising the following steps:
when the refrigerator is started up and in a normal working state, low-temperature low-pressure refrigerant enters a first evaporator and a second evaporator, the first evaporator and the second evaporator absorb heat of a cooled medium, condensed water is generated on the surface, and even frost is formed;
controlling the refrigerant flowing states of the first three-way electromagnetic valve and the second three-way electromagnetic valve to enable the first evaporator or the second evaporator to work normally, enabling the second evaporator or the first evaporator to enter a defrosting state, and achieving defrosting without stopping;
the condensed water after frosting flows into the vacuum inner container through the condensed water inlet, the low-temperature high-pressure refrigerant flowing out of the condenser is controlled to enter the heat exchange tube of the fin type heat exchanger, heat exchange is carried out on the condensed water in the vacuum inner container, the condensed water enters the working state of the heat exchange tube, the temperature of the refrigerant is reduced by utilizing the cold energy of the condensed water, and the refrigerant with the reduced temperature flows into the first evaporator or the second evaporator which normally works again.
Further, a first throttle valve is communicated between the first three-way electromagnetic valve and the first evaporator, a second throttle valve is communicated between the second three-way electromagnetic valve and the second evaporator, and low-temperature high-pressure refrigerant flowing out of the first three-way electromagnetic valve and the second three-way electromagnetic valve respectively passes through the pressure reduction effect of the first throttle valve and the second throttle valve, so that part of refrigerant is vaporized, the latent heat of vaporization is absorbed, the temperature is reduced, and the low-temperature low-pressure refrigerant respectively enters the first evaporator and the second evaporator.
Further, the low-temperature low-pressure refrigerant enters the first evaporator and the second evaporator, absorbs the heat of the cooled medium to evaporate and vaporize, and becomes low-temperature low-pressure refrigerant vapor to be sucked away by the compressor.
Further, in the refrigerating process, the compressor absorbs low-temperature low-pressure refrigerant vapor of the first evaporator and/or the second evaporator, compresses the low-temperature low-pressure refrigerant vapor into high-temperature high-pressure refrigerant gas, discharges the high-temperature high-pressure refrigerant gas into the condenser of the outdoor unit, and under the condition that the pressure is unchanged, the high-temperature high-pressure refrigerant gas is cooled by a cooling medium in the condenser, emits heat, reduces the temperature, condenses into low-temperature high-pressure refrigerant liquid and discharges the low-temperature high-pressure refrigerant liquid from the condenser.
Further, the third three-way electromagnetic valve, the second three-way electromagnetic valve, the first three-way electromagnetic valve, the switch and the flow are controlled by the controller.
Further, the first evaporator and the second evaporator are respectively connected with the controller, when the surface temperature of the first evaporator and/or the second evaporator is lower than the set temperature, the controller senses the temperature difference change and controls the first three-way electromagnetic valve and/or the second three-way electromagnetic valve to adjust the refrigerant flowing state of the first evaporator and/or the second evaporator, so that the first evaporator or the second evaporator works normally, and the second evaporator or the first evaporator enters a defrosting state, thereby realizing defrosting without stopping.
Furthermore, the inner wall of the vacuum inner container is provided with a temperature sensor which is connected with a controller, when the temperature of condensed water in the vacuum inner container is lower than a set temperature, the controller senses the temperature difference change, and controls a third three-way electromagnetic valve to adjust the refrigerant to enter a heat exchange tube of the fin type heat exchanger to exchange heat with the condensed water, so that the temperature of the refrigerant is reduced.
The invention has the advantages that:
1. the invention sets up two parallel first evaporator branch and second evaporator branch, and connect the first three-way electromagnetic valve in the first evaporator inlet, connect the second three-way electromagnetic valve in the second evaporator inlet, through controlling the coolant flow state of first three-way electromagnetic valve and second three-way electromagnetic valve, make the first evaporator, or second evaporator work normally, the second evaporator, or first evaporator enters the defrosting state, realize not shutting down and defrost, reduce the fluctuation of the indoor temperature;
2. according to the invention, the water receiving disc for receiving condensed water on the outer surface of the evaporator is arranged below the first evaporator and the second evaporator in the room, the heat exchange tube in the water receiving disc is arranged between the condenser and the first evaporator and between the water receiving disc and the second evaporator, the temperature of the refrigerant in the heat exchange tube is reduced by utilizing the cold energy of the condensed water, and the refrigerant with reduced temperature flows into the first evaporator or the second evaporator which normally works again, so that the energy utilization rate is improved;
the air conditioner refrigeration control system and the control method thereof enable the system to be switched among a normal working state, a defrosting state and a heat exchange tube working state, thereby not only realizing defrosting without stopping, but also reducing the fluctuation of indoor temperature; and the condensed water generated during defrosting is fully utilized, so that the energy utilization rate is improved.
Drawings
FIG. 1 is a schematic diagram of a hollow modulated cold control system of the present invention;
FIG. 2 is an enlarged view of the drip tray of FIG. 1;
FIG. 3 is a flow chart of a control method of the air conditioning cold control system of the present invention;
in the figure: the device comprises a compressor 1, a condenser 2, a first evaporator 3, a second evaporator 4, a first throttle valve 5, a second throttle valve 6, a first three-way electromagnetic valve 7, a second three-way electromagnetic valve 8, a third three-way electromagnetic valve 9, a controller 10 and a water receiving disc 11;
the water pan 11 includes: the device comprises a shell 11-1, a condensate water inlet 11-2, a vacuum liner 11-3, a fin type heat exchanger 11-4, an overflow valve 11-5 and a temperature sensor 11-6.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
As shown in fig. 1 to 2, the air conditioner refrigeration control system of the present invention includes: the third three-way electromagnetic valve 9 is connected to the outlet of the condenser 2, the outlets of the third three-way electromagnetic valve 9 are respectively connected with the first evaporator 3 and the second evaporator 4 which are positioned in different branches, the inlet of the first evaporator 3 is communicated with the first three-way electromagnetic valve 7, and the inlet of the second evaporator 4 is communicated with the second three-way electromagnetic valve 8.
The water pan 11 for receiving the condensed water on the outer surfaces of the evaporators is arranged below the first evaporator 3 and the second evaporator 4, the water pan 11 comprises a shell 11-1, a condensed water inlet 11-2 for receiving the condensed water on the outer surfaces of the first evaporator 3 and the second evaporator 4 is arranged at the upper end of the shell 11-1, a vacuum liner 11-3 for containing the condensed water is embedded in the shell 11-1, a fin type heat exchanger 11-4 is arranged in the vacuum liner 11-3, and an overflow valve 11-5 is arranged at the upper end of the vacuum liner 11-3.
The fin type heat exchanger 11-4 comprises fins and heat exchange tubes penetrating through the fins, wherein the inlets of the heat exchange tubes are communicated with the outlets of the third three-way electromagnetic valve 9, and the outlets of the heat exchange tubes are communicated with the inlets of the first three-way electromagnetic valve 7 and the second three-way electromagnetic valve 8.
Specifically, the first evaporator 3, the second evaporator 4, and the water pan 11 belong to an indoor unit, and the condenser 2 belongs to an outdoor unit.
The water receiving disc 11 is closed, and is provided with an overflow valve 11-5, so that excessive condensed water can flow out conveniently. The vacuum liner 11-3 is a vacuum heat insulating layer and receives condensed water falling from the first evaporator 3 and the second evaporator 4. The vacuum liner is adopted, so that the temperature of the condensed water is not easy to change.
One end of a heat exchange tube of the fin type heat exchanger 11-4 is connected with an outlet of the condenser 2, and the other end of the heat exchange tube is respectively connected with inlets of the first evaporator 3 and the second evaporator 4.
The third three-way electromagnetic valve 9, the second three-way electromagnetic valve 8 and the first three-way electromagnetic valve 7 can adjust the refrigerant flowing states of the first evaporator 3 and the second evaporator 4 according to the running state of the air conditioner, so that when two evaporators have frosting, one evaporator works normally, and the other evaporator enters the defrosting state, thereby realizing the defrosting without stopping the machine and reducing the fluctuation of indoor temperature.
After the frost is melted, the frost flows into the water receiving disc 11, and the heat exchange tube in the water receiving disc 11 is connected with the first evaporator 3, the second evaporator 4 and the condenser 2, so that the low-temperature refrigerant flowing out of the condenser 2 can exchange heat with the condensed water in the water receiving disc 11 in the heat exchange tube, and the cold energy of the condensed water is fully utilized to reduce the temperature of the refrigerant.
As shown in fig. 3, the control method of the air conditioner refrigeration control system of the present invention is applicable to the air conditioner refrigeration control system as set forth in claim 1, and includes:
when the refrigerator is started up and in a normal working state, low-temperature low-pressure refrigerant enters the first evaporator 3 and the second evaporator 4, the first evaporator 3 and the second evaporator 4 absorb heat of a cooled medium, condensed water is generated on the surface, and even frost is formed;
the refrigerant flowing states of the first three-way electromagnetic valve 7 and the second three-way electromagnetic valve 8 are controlled, so that the first evaporator 3 or the second evaporator 4 works normally, and the second evaporator 4 or the first evaporator 3 enters a defrosting state, and the defrosting without stopping is realized;
the melted condensed water after frosting flows into the vacuum inner container 11-3 through the condensed water inlet 11-2, the low-temperature high-pressure refrigerant flowing out of the condenser 2 is controlled to enter the heat exchange tube of the fin type heat exchanger 11-4, heat exchange is carried out between the condensed water and the condensed water in the vacuum inner container 11-3, the condensed water enters the working state of the heat exchange tube, the temperature of the refrigerant is reduced by utilizing the cold energy of the condensed water, and the refrigerant with the reduced temperature flows into the first evaporator 3 or the second evaporator 4 which normally works again.
The invention makes the system switch between the normal working state, the defrosting state and the working state of the heat exchange tube, thereby not only realizing the defrosting without stopping the machine and reducing the fluctuation of indoor temperature; and the condensed water generated during defrosting is fully utilized, so that the energy utilization rate is improved.
Specifically, a first throttle valve 5 is communicated between the first three-way electromagnetic valve 7 and the first evaporator 3, a second throttle valve 6 is communicated between the second three-way electromagnetic valve 8 and the second evaporator 4, and the low-temperature high-pressure refrigerant flowing out of the first three-way electromagnetic valve 7 and the second three-way electromagnetic valve 8 respectively passes through the depressurization effect of the first throttle valve 5 and the second throttle valve 6, so that part of the refrigerant is vaporized, the vaporization latent heat is absorbed, the temperature is reduced, and the low-temperature low-pressure refrigerant respectively enters the first evaporator 3 and the second evaporator 4.
Specifically, the low-temperature low-pressure refrigerant enters the first evaporator 3 and the second evaporator 4, absorbs the heat of the medium to be cooled, evaporates and evaporates, and becomes low-temperature low-pressure refrigerant vapor, which is sucked by the compressor 1.
In the cooling process, the compressor 1 absorbs low-temperature low-pressure refrigerant vapor of the first evaporator 3 and/or the second evaporator 4, compresses the low-temperature low-pressure refrigerant vapor into high-temperature high-pressure refrigerant gas, discharges the high-pressure refrigerant gas into the condenser 2 of the outdoor unit, cools the high-temperature high-pressure refrigerant gas in the condenser 2 by a cooling medium (air) under the condition that the pressure is unchanged, emits heat, reduces the temperature, condenses the low-temperature high-pressure refrigerant gas into low-temperature high-pressure refrigerant liquid, and discharges the low-temperature high-pressure refrigerant liquid from the condenser 2.
Specifically, the opening and closing and the flow of the third three-way electromagnetic valve 9, the second three-way electromagnetic valve 8, the first three-way electromagnetic valve 7 are controlled by the controller 10.
The first evaporator 3 and the second evaporator 4 are respectively connected with a controller 10, when the surface temperature of the first evaporator 3 and/or the second evaporator 4 is lower than a set temperature, the controller 10 senses the temperature difference change and controls the first three-way electromagnetic valve 7 and/or the second three-way electromagnetic valve 8 to adjust the refrigerant flowing state of the first evaporator 3 and/or the second evaporator 4 so that the first evaporator 3 or the second evaporator 4 works normally, and the second evaporator 4 or the first evaporator 3 enters a defrosting state to realize the defrosting without stopping.
Specifically, when the surface temperature of the first evaporator 3 and/or the second evaporator 4 is lower than the set temperature of 15 ℃, the controller 10 controls the first evaporator 3 or the second evaporator 4 to operate normally, and the second evaporator 4 or the first evaporator 3 enters a defrost state.
The inner wall of the vacuum inner container 11-3 is provided with a temperature sensor 11-6, the temperature sensor 11-6 is connected with a controller 10, when the temperature of condensed water in the vacuum inner container 11-3 is lower than a set temperature, the controller 10 senses temperature difference change, and controls a third three-way electromagnetic valve 9 to adjust the refrigerant to enter a heat exchange tube of the fin type heat exchanger 11-4 to exchange heat with the condensed water, so that the temperature of the refrigerant is reduced.
Specifically, when the temperature of the condensed water in the vacuum bladder 11-3 is 15 ℃ lower than the set temperature, the controller 10 controls the refrigerant to flow into the heat exchange pipe to exchange heat with the condensed water.
The air conditioner refrigeration control system and the control method thereof enable the system to be switched among a normal working state, a defrosting state and a heat exchange tube working state, thereby not only realizing defrosting without stopping, but also reducing the fluctuation of indoor temperature; and the condensed water generated during defrosting is fully utilized, so that the energy utilization rate is improved.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (8)
1. An air conditioning refrigeration control system, comprising: the outlet of the third three-way electromagnetic valve (9) is connected with the first evaporator (3) and the second evaporator (4) which are positioned in different branches respectively, the inlet of the first evaporator (3) is communicated with the first three-way electromagnetic valve (7), and the inlet of the second evaporator (4) is communicated with the second three-way electromagnetic valve (8);
a water receiving disc (11) for receiving condensed water on the outer surface of the evaporator is arranged below the first evaporator (3) and the second evaporator (4), the water receiving disc (11) comprises a shell (11-1), a condensed water inlet (11-2) for receiving condensed water on the outer surface of the first evaporator (3) and the second evaporator (4) is arranged at the upper end of the shell (11-1), a vacuum liner (11-3) for containing condensed water is embedded in the shell (11-1), a fin-type heat exchanger (11-4) is arranged in the vacuum liner (11-3), and an overflow valve (11-5) is arranged at the upper end of the vacuum liner (11-3);
the fin type heat exchanger (11-4) comprises fins and heat exchange tubes penetrating through the fins, wherein the inlets of the heat exchange tubes are communicated with the outlets of the third three-way electromagnetic valve (9), and the outlets of the heat exchange tubes are communicated with the inlets of the first three-way electromagnetic valve (7) and the second three-way electromagnetic valve (8).
2. A control method of an air conditioner refrigeration control system, which is applied to the air conditioner refrigeration control system as set forth in claim 1, comprising:
when the refrigerator is started up and in a normal working state, low-temperature low-pressure refrigerant enters a first evaporator (3) and a second evaporator (4), the first evaporator (3) and the second evaporator (4) absorb heat of a cooled medium, condensed water is generated on the surface, and even frosting is generated;
controlling the refrigerant flowing states of the first three-way electromagnetic valve (7) and the second three-way electromagnetic valve (8) to enable the first evaporator (3) or the second evaporator (4) to work normally, enabling the second evaporator (4) or the first evaporator (3) to enter a defrosting state, and realizing defrosting without stopping;
the condensed water melted after frosting flows into the vacuum inner container (11-3) through the condensed water inlet (11-2), the low-temperature high-pressure refrigerant flowing out of the condenser (2) is controlled to enter the heat exchange tube of the fin type heat exchanger (11-4), heat exchange is carried out between the condensed water and the condensed water in the vacuum inner container (11-3), the condensed water enters the working state of the heat exchange tube, the temperature of the refrigerant is reduced by utilizing the cold energy of the condensed water, and the refrigerant with reduced temperature flows into the first evaporator (3) or the second evaporator (4) which normally works again.
3. The control method of an air conditioner cooling control system according to claim 2, wherein: the low-temperature high-pressure refrigerant flowing out of the first three-way electromagnetic valve (7) and the second three-way electromagnetic valve (8) respectively passes through the depressurization effect of the first throttle valve (5) and the second throttle valve (6), so that part of refrigerant is vaporized, the latent heat of vaporization is absorbed, the temperature is reduced, and the low-temperature low-pressure refrigerant respectively enters the first evaporator (3) and the second evaporator (4).
4. A control method of an air conditioner cooling control system according to claim 3, wherein: the low-temperature low-pressure refrigerant enters the first evaporator (3) and the second evaporator (4), absorbs the heat of the cooled medium to evaporate and vaporize, and becomes low-temperature low-pressure refrigerant vapor to be sucked away by the compressor (1).
5. The control method of an air conditioner cooling control system according to claim 4, wherein: in the refrigerating process, the compressor (1) absorbs low-temperature low-pressure refrigerant vapor of the first evaporator (3) and/or the second evaporator (4), compresses the low-temperature low-pressure refrigerant vapor into high-temperature high-pressure refrigerant gas, discharges the high-pressure refrigerant gas into the condenser (2) of the outdoor unit, and under the condition that the pressure is unchanged, the high-temperature high-pressure refrigerant gas is cooled by a cooling medium in the condenser (2), releases heat, reduces the temperature, condenses into low-temperature high-pressure refrigerant liquid and discharges the low-temperature high-pressure refrigerant liquid from the condenser (2).
6. The control method of an air conditioner cooling control system according to claim 1, wherein: the third three-way electromagnetic valve (9), the second three-way electromagnetic valve (8), the first three-way electromagnetic valve (7) are switched on and off, and the flow is controlled by the controller (10).
7. The control method of an air conditioner cooling control system according to claim 6, wherein: the first evaporator (3) and the second evaporator (4) are respectively connected with the controller (10), when the surface temperature of the first evaporator (3) and/or the second evaporator (4) is lower than a set temperature, the controller (10) senses the temperature difference change, controls the first three-way electromagnetic valve (7) and/or the second three-way electromagnetic valve (8) to adjust the refrigerant flowing state of the first evaporator (3) and/or the second evaporator (4), enables the first evaporator (3) or the second evaporator (4) to work normally, and enables the second evaporator (4) or the first evaporator (3) to enter a defrosting state, so that the defrosting without stopping is realized.
8. The control method of an air conditioner cooling control system according to claim 7, wherein: the inner wall of the vacuum inner container (11-3) is provided with a temperature sensor (11-6), the temperature sensor (11-6) is connected with a controller (10), when the temperature of condensed water in the vacuum inner container (11-3) is lower than a set temperature, the controller (10) senses temperature difference change, and controls a third three-way electromagnetic valve (9) to adjust the refrigerant to enter a heat exchange tube of the fin type heat exchanger (11-4) to exchange heat with the condensed water, so that the temperature of the refrigerant is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310436105.0A CN116358141A (en) | 2023-04-21 | 2023-04-21 | Air conditioner refrigeration control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310436105.0A CN116358141A (en) | 2023-04-21 | 2023-04-21 | Air conditioner refrigeration control system and control method thereof |
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| CN116358141A true CN116358141A (en) | 2023-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847816A (en) * | 2024-01-08 | 2024-04-09 | 江苏拓米洛高端装备股份有限公司 | Control method of refrigerating system evaporator and refrigerating system |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847816A (en) * | 2024-01-08 | 2024-04-09 | 江苏拓米洛高端装备股份有限公司 | Control method of refrigerating system evaporator and refrigerating system |
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