Cold and hot control system for kitchen

Abstract

The utility model discloses a kitchen cold and hot control system, which comprises a variable frequency compressor, a condenser mechanism, a heating mechanism and a cooling mechanism which are respectively and electrically connected with a controller, the condenser mechanism comprises a water-cooling condenser and an air-cooling condenser, the inlet end of the water-cooling condenser is connected with the outlet end of the variable frequency compressor, and the outlet end of the air-cooling condenser is connected with the outlet end of the variable frequency compressor. The heating mechanism comprises a water tank, a circulating water pipe is arranged on the water tank, and the circulating water pipe is connected with the water-cooling condenser. The temperature detection of the water tank, the refrigeration house evaporator, the air-cooled condenser and the refrigerator evaporator which are relatively connected is realized by matching with the controller, the power of the inverter compressor is adjusted by matching with the preset temperature of the controller, and the effective cold and hot control is realized by adjusting the electromagnetic valve switch, so that the device is very suitable for connecting a plurality of cold and hot electric appliances in a kitchen.

Description

[0001] This application is a divisional application of the original application number: 2024205805561, the application date is March 25, 2024, and the application name is a multi-connected kitchen heating and cooling system. Technical Field

[0002] The utility model relates to the technical field of cold and hot systems, in particular to a kitchen cold and hot control system. Background Art

[0003] At present, restaurants often need medium-temperature cold storage, low-temperature cold storage and refrigerators to store food, and also need a lot of hot water for washing dishes and cleaning the kitchen, etc. At present, most restaurant cold storages use air-cooled condensing units to provide cold storage and refrigerators with cooling capacity, while hot water needs to be obtained through independent water heaters. The heat generated by the cold storage condensing unit and the refrigerator condensing unit cannot be recycled for hot water production.

[0004] Many restaurants are located inside shopping malls, and condensing units are often installed on the ceiling of the restaurant. The heat generated by the condensing unit usually cannot be quickly dissipated. When using hot water, an independent water heater is used to make hot water. There is no measure to recycle the heat of the condensing unit, resulting in excessively high ambient temperature and extra electricity consumption. Alternatively, the condensing unit is installed outside the shopping mall through a very long copper pipe, which will cause the efficiency of the condensing unit to be seriously reduced because the connecting copper pipes of the internal and external units are too long. Therefore, a hot and cold control system is provided for the hot and cold control of the kitchen, so as to realize the recycling of the heat generated by the refrigerator, without affecting the working efficiency of the condensing unit, and reducing the consumption of hot water production. Utility Model Content

[0005] The utility model provides a multi-connected kitchen cooling and heating system to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kitchen heating and cooling control system, comprising a variable frequency compressor, a condenser mechanism, a heating mechanism, and a cooling mechanism, which are electrically connected to a controller respectively, wherein the condenser mechanism comprises a water-cooled condenser and an air-cooled condenser, wherein the inlet end of the water-cooled condenser is connected to the outlet end of the variable frequency compressor, and the heating mechanism comprises a water tank, wherein a circulating water pipe is provided on the water tank, and the circulating water pipe is connected to the water-cooled condenser;

[0008] The water tank is provided with a water tank temperature sensor, the water tank is also connected to an external water pipe, the external water pipe is provided with a solenoid valve 1, the circulating water pipe is provided with a circulating water pump, and the water tank temperature sensor, the solenoid valve 1 and the circulating water pump are electrically connected to the controller respectively;

[0009] The cooling mechanism includes a cold storage evaporator and two refrigerator evaporators;

[0010] The air-cooled condenser is provided with an ambient temperature sensor and a condenser fan, the cold storage evaporator is provided with a cold storage temperature sensor and a cold storage fan, and the two refrigerator evaporators are each provided with a refrigerator temperature sensor and a refrigerator fan. The ambient temperature sensor, condenser fan, cold storage temperature sensor, cold storage fan, refrigerator temperature sensor and refrigerator fan are electrically connected to the controller respectively.

[0011] A solenoid valve 2 and a shut-off device 1 are provided between the cold storage evaporator and the air-cooled condenser, a solenoid valve 3 and a shut-off device 2 are provided between the two refrigerator evaporators and the air-cooled condensers, the cold storage evaporator and the two refrigerator evaporators are respectively connected to the inlet end of the variable frequency compressor, and the solenoid valve 2, the solenoid valve 3, the shut-off device 1 and the shut-off device 2 are respectively electrically connected to the controller.

[0012] The variable frequency compressor is provided with a refrigerant, and the outlet end of the variable frequency compressor is provided with a condenser mechanism, which is a dual-purpose condenser heat exchange structure of air cooling and water cooling in series, and the condenser mechanism is respectively connected to a heating mechanism for heating hot water and a cooling mechanism for cooling a refrigerator and an ice storage, and the cooling mechanism is a parallel heat dissipation structure for dissipating heat from the refrigerator and the ice storage, and the cooling mechanism is also connected to the inlet end of the variable frequency compressor.

[0013] The inlet end of the air-cooled condenser is connected to the outlet end of the water-cooled condenser, and the inlet end of the cold storage evaporator and the inlet ends of the two refrigerator evaporators are connected in parallel to the outlet end of the air-cooled condenser.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model is provided with a water tank temperature sensor, a cold storage temperature sensor, an ambient temperature sensor, and a refrigerator temperature sensor, and cooperates with a controller to realize temperature detection of the relatively connected water tank, cold storage evaporator, air-cooled condenser, and refrigerator evaporator, and then adjusts the power of the variable frequency compressor in accordance with the preset temperature of the controller, and adjusts the switches of the solenoid valve 1, the solenoid valve 2, and the solenoid valve 3 to realize effective cold and hot control, which is very suitable for connecting and using multiple hot and cold appliances in the kitchen; the variable frequency compressor, the heating mechanism, and the condenser mechanism are connected in series, and the cold storage evaporator and the refrigerator evaporator in the condenser mechanism, the variable frequency compressor, and the cooling mechanism are connected in series to form a A multi-circulation heat exchange device connected in series and parallel, through the refrigerant absorbing the heat of the cold storage evaporator and the refrigerator evaporator to exchange heat with the water in the circulating water pipe in the water-cooled condenser, thereby achieving the effect of heating hot water and cooling the refrigerant. At the same time, after the air-cooled condenser cools the refrigerant again, the refrigerant flows through the cold storage evaporator and the refrigerator evaporator again, absorbing the heat of the cold storage evaporator and the refrigerator evaporator, and cooling the cold storage evaporator and the refrigerator evaporator, thereby achieving the effect of circulating heat exchange, effectively reducing the use of independent water heaters, reducing electricity consumption, and achieving the effect of recycling and utilizing the heat of the cold storage evaporator and the refrigerator evaporator;

[0016] The utility model discloses the heat and cold control, effectively improves the recovery rate of the temperature produced by the operation of the cold storage and the refrigerator, thereby lowers the temperature in the kitchen, reduces the use of independent water heaters, and improves the heat exchange efficiency of the condenser mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection circuits of the overall components of the utility model.

[0018] 1. Variable frequency compressor; 2. Heating mechanism; 3. Cooling mechanism; 4. Condenser mechanism; 5. Water-cooled condenser; 6. Water tank; 7. Circulating water pipe; 8. Circulating water pump; 9. Solenoid valve one; 10. Water tank temperature sensor; 11. Air-cooled condenser; 12. Condenser fan; 13. Ambient temperature sensor; 14. Solenoid valve two; 15. Solenoid valve three; 16. Shut-off device one; 17. Shut-off device two; 18. Cold storage evaporator; 19. Cold storage temperature sensor; 20. Cold storage fan; 21. Refrigerator evaporator; 22. Refrigerator fan; 23. Refrigerator temperature sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1 A kitchen heating and cooling control system comprises a variable frequency compressor 1, wherein the variable frequency compressor 1 is provided with a refrigerant, and a condenser mechanism 4 is provided at the outlet end of the variable frequency compressor 1, wherein the condenser mechanism 4 is a dual-purpose condenser heat exchange structure of air cooling and water cooling in series, wherein the condenser mechanism 4 is respectively connected with a heating mechanism 2 for heating hot water and a cooling mechanism 3 for cooling a refrigerator and an ice storage, wherein the cooling mechanism 3 is a parallel heat dissipation structure for dissipating heat from the refrigerator and the ice storage, wherein the cooling mechanism 3 is also connected with the inlet end of the variable frequency compressor 1, wherein the variable frequency compressor 1, the condenser mechanism 4, the heating mechanism 2, and the cooling mechanism 3 are respectively electrically connected with a controller, and a multi-connected circulating heat exchange system is formed among the variable frequency compressor 1, the condenser mechanism 4, the heating mechanism 2, and the cooling mechanism 3.

[0021] The condenser mechanism 4 includes a water-cooled condenser 5 and an air-cooled condenser 11, the inlet end of the water-cooled condenser 5 is connected to the outlet end of the variable frequency compressor 1, the heating mechanism 2 includes a water tank 6, the water tank 6 is provided with a circulating water pipe 7, the circulating water pipe 7 is connected to the water-cooled condenser 5, the variable frequency compressor 1 transports high-temperature and high-pressure gaseous refrigerant to the water-cooled condenser 5, and heat is exchanged between the gaseous refrigerant and the cold water in the circulating water pipe 7 via the water-cooled condenser 5, so that the cold water absorbs heat and the temperature is increased and flows back to the water tank 6, and the high-temperature and high-pressure gaseous refrigerant releases heat to form a high-temperature and high-pressure liquid refrigerant.

[0022] The water tank 6 is provided with a water tank temperature sensor 10, and the water tank 6 is also connected to an external water pipe, and the external water pipe is provided with a solenoid valve 9, and the circulating water pipe 7 is provided with a circulating water pump 8. The water tank temperature sensor 10, the solenoid valve 9 and the circulating water pump 8 are electrically connected to the controller respectively. When the water tank temperature sensor 10 detects that the water temperature in the water tank 6 is higher than the predetermined temperature, the solenoid valve 9 opens to discharge the hot water in the water tank 6, and at the same time, additional cold water is added to the water tank 6. The water tank temperature sensor 10 is used to detect the temperature of the hot water in the water tank 6. When the temperature of the hot water in the water tank 6 is higher than the predetermined temperature, the solenoid valve 9 opens to discharge the hot water in the water tank 6 from the water tank 6, and cold water is added to the water tank 6 through another water pipe for heat exchange with the water-cooled condenser 5.

[0023] The inlet end of the air-cooled condenser 11 is connected to the outlet end of the water-cooled condenser 5, and the cooling mechanism 3 includes a cold storage evaporator 18 and two refrigerator evaporators 21. The inlet end of the cold storage evaporator 18 and the inlet ends of the two refrigerator evaporators 21 are connected in parallel with the outlet end of the air-cooled condenser 11. A solenoid valve 2 14 and a shut-off device 1 16 are provided between the cold storage evaporator 18 and the air-cooled condenser 11, and a solenoid valve 3 15 and a shut-off device 2 17 are respectively provided between the two refrigerator evaporators 21 and the air-cooled condenser 11. The cold storage evaporator 18 and the two refrigerator evaporators 21 are respectively connected to the inlet end of the variable frequency compressor 1, and the solenoid valve 2 14, the solenoid valve 3 15, the shut-off device 1 16 and the shut-off device 2 17 are respectively electrically connected to the controller.

[0024] The air-cooled condenser 11 is used to cool the high-temperature and high-pressure liquid refrigerant so that the temperature entering the interception device 16 and the interception device 2 17 is lower than the saturation temperature corresponding to the condensation pressure, the dryness of the refrigerant after throttling is reduced, and the throttling loss is reduced. The high-temperature and high-pressure liquid refrigerant is converted into a low-temperature and low-pressure gas-liquid two-phase mixture through the solenoid valve 2 14 and the intercepting device 1 16. The low-temperature and low-pressure gas-liquid two-phase mixture flows through the cold storage evaporator 18 to absorb the heat dissipated by the cold storage refrigeration, so that the low-temperature and low-pressure gas-liquid two-phase mixture absorbs heat and then evaporates and vaporizes. Similarly, because the air-cooled condenser 11 is connected in parallel with the two refrigerator evaporators 21, the high-temperature and high-pressure liquid refrigerant is converted into a low-temperature and low-pressure gas-liquid two-phase mixture through the intercepting device 2 17 and the solenoid valve 3 15, and flows through the two refrigerator evaporators 21 to absorb the heat dissipated by the refrigerator refrigeration. The low-temperature and low-pressure gas-liquid two-phase mixture absorbs heat and then evaporates and vaporizes. The refrigerant after heat exchange and vaporization from the cold storage evaporator 18 and the two refrigerator evaporators 21 flows into the variable frequency compressor 1 and is again elevated to a high-temperature and high-pressure gaseous refrigerant for circulation.

[0025] The air-cooled condenser 11 is provided with an ambient temperature sensor 13 and a condenser fan 12, the cold storage evaporator 18 is provided with a cold storage temperature sensor 19 and a cold storage fan 20, and the two refrigerator evaporators 21 are each provided with a refrigerator temperature sensor 23 and a refrigerator fan 22, and the ambient temperature sensor 13, the condenser fan 12, the cold storage temperature sensor 19, the cold storage fan 20, the refrigerator temperature sensor 23 and the refrigerator fan 22 are respectively electrically connected to the controller. The cold storage fan 20 is placed outside the cold storage evaporator 18 to guide the air flow, enhance the heat exchange, and realize the evaporation and vaporization of the refrigerant, and the refrigerator fan 22 is placed outside the corresponding refrigerator evaporator 21 to guide the air flow, enhance the heat exchange, and realize the evaporation and vaporization of the refrigerant.

[0026] When the utility model is used, refrigerant is injected into the variable frequency compressor 1 from the outside, and the variable frequency compressor 1 elevates the refrigerant into a high-temperature and high-pressure gaseous refrigerant. The speed of the variable frequency compressor 1 can be controlled by a controller to change the refrigerant displacement. The high-temperature and high-pressure gaseous refrigerant flows through the water-cooled condenser 5. At the same time, the circulating water pump 8 works to transport the cold water in the water tank 6 to the circulating water pipe 7. The cold water flows through the water-cooled condenser 5 along the circulating water pipe 7, so that the cold water flowing through the water-cooled condenser 5 exchanges heat with the high-temperature and high-pressure gaseous refrigerant flowing through the water-cooled condenser 5. The high-temperature and high-pressure gaseous refrigerant releases heat and becomes a high-temperature and high-pressure liquid refrigerant. At the same time, the temperature of the cold water in the circulating water pipe 7 rises and becomes hot water. The circulating water pump 8 works to transport the hot water to the water tank 6 for storage, and is connected to the external tap water pipeline and the user water pipeline, so that the tap water can be automatically replenished and the water supply can be supplied. The water temperature sensor of the water tank 6 can detect the temperature of the water in the water tank 6. When the water temperature in the water tank 6 reaches the set threshold value and the ambient temperature exceeds the set threshold value, the controller controls the solenoid valve 1 9 to open, discharge the high-temperature hot water, and replenish the low-temperature tap water to ensure the heat exchange effect of the water in the water tank 6 in the water-cooled condenser 5. The high-temperature and high-pressure liquid refrigerant flows from the water-cooled condenser 5 through the air-cooled condenser 11. The high-temperature and high-pressure liquid refrigerant can exchange heat with the air flowing through the surface of the air-cooled condenser 11, so that the temperature of the high-temperature and high-pressure liquid refrigerant is reduced, so that the temperature entering the interception device 1 16 and the interception device 2 17 is lower than the saturation temperature corresponding to the condensation pressure, the dryness of the refrigerant after throttling is reduced, and the throttling loss is reduced. The ambient temperature sensor 13 is installed at the return air port of the air-cooled condenser 11 to detect the ambient air temperature around the air-cooled condenser 11. The condenser fan 12 can change the speed and stop running through the control of the controller, thereby changing the air volume passing through the surface of the air-cooled condenser 11. The solenoid valve 2 14 and the two solenoid valves 3 15 are installed in parallel at the output end of the air-cooled condenser 11 and can be opened or closed by the controller. The interception device 16 and the two interception devices 2 17 are respectively connected in series with the corresponding solenoid valve 1 9 and solenoid valve 2 14, and the high-temperature and high-pressure liquid refrigerant is converted into a low-temperature and low-pressure gas-liquid two-phase mixture by throttling and reducing pressure. The cold storage evaporator 18 is connected in series behind the interception device 1 16. The low-temperature and low-pressure gas-liquid two-phase mixed refrigerant absorbs heat in the cold storage evaporator 18, and is converted into a low-temperature and low-pressure gas refrigerant and returns to the variable frequency compressor 1. The cold storage fan 20 is placed outside the cold storage evaporator 18. Its function is to guide the air flow, enhance heat exchange, and realize the evaporation and vaporization of the refrigerant. The cold storage evaporator 18 absorbs the heat of the air and evaporates and vaporizes, thereby cooling the corresponding installed cold storage. The cold storage temperature sensor 19 is placed on the return air side of the cold storage evaporator 18, which is used to detect the air temperature in the cold storage, transmit the temperature signal to the controller, and adjust the frequency of the variable frequency compressor 1. Similarly, the refrigerator evaporator 21 is connected in series behind the corresponding intercepting device 2 17 , and the low-temperature and low-pressure gas-liquid two-phase mixed refrigerant absorbs heat in the refrigerator evaporator 21 , and is converted into a low-temperature and low-pressure gaseous refrigerant and returns to the variable frequency compressor 1 .The refrigerator fan 22 is placed on the outside of the corresponding refrigerator evaporator 21. Its function is to guide the air flow, enhance heat exchange, and realize the evaporation and vaporization of the refrigerant. The refrigerator evaporator 21 absorbs the heat of the air and evaporates and vaporizes to cool the refrigerator. The refrigerator temperature sensor 23 is placed on the return air side of the corresponding refrigerator evaporator 21 to detect the air temperature in the refrigerator, transmit the temperature signal to the controller, and adjust the frequency of the variable frequency compressor 1. The variable frequency compressor 1 will re-elevate the low-temperature and low-pressure gaseous refrigerant received from the cold storage evaporator 18 and the two refrigerator evaporators 21 into a high-temperature and high-pressure gaseous refrigerant to achieve cyclic heat exchange.

[0027] The utility model forms a multi-circulation heat exchange device connected in series and in parallel by combining series and parallel connections, which effectively improves the heat recovery rate, reduces the use of independent water heaters, and improves the heat exchange efficiency of the condenser mechanism 4.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A kitchen heating and cooling control system, comprising a variable frequency compressor (1), a condenser mechanism (4), a heating mechanism (2), and a cooling mechanism (3), characterized in that: The variable frequency compressor (1), the condenser mechanism (4), the heating mechanism (2), and the cooling mechanism (3) are respectively electrically connected to a controller; the condenser mechanism (4) comprises a water-cooled condenser (5) and an air-cooled condenser (11); the inlet end of the water-cooled condenser (5) is connected to the outlet end of the variable frequency compressor (1); the heating mechanism (2) comprises a water tank (6); a circulating water pipe (7) is provided on the water tank (6); and the circulating water pipe (7) is connected to the water-cooled condenser (5); The water tank (6) is provided with a water tank temperature sensor (10), the water tank (6) is also connected to an external water pipe, the external water pipe is provided with a solenoid valve (9), the circulating water pipe (7) is provided with a circulating water pump (8), the water tank temperature sensor (10), the solenoid valve (9) and the circulating water pump (8) are respectively electrically connected to the controller; The cooling mechanism (3) comprises a cold storage evaporator (18) and two refrigerator evaporators (21); The air-cooled condenser (11) is provided with an ambient temperature sensor (13) and a condenser fan (12); the cold storage evaporator (18) is provided with a cold storage temperature sensor (19) and a cold storage fan (20); the two refrigerator evaporators (21) are respectively provided with a refrigerator temperature sensor (23) and a refrigerator fan (22); the ambient temperature sensor (13), the condenser fan (12), the cold storage temperature sensor (19), the cold storage fan (20), the refrigerator temperature sensor (23) and the refrigerator fan (22) are respectively electrically connected to the controller.

2. A kitchen cooling and heating control system according to claim 1, characterized in that: A second solenoid valve (14) and a first shutoff device (16) are provided between the cold storage evaporator (18) and the air-cooled condenser (11); a third solenoid valve (15) and a second shutoff device (17) are provided between the two refrigerator evaporators (21) and the air-cooled condenser (11); the cold storage evaporator (18) and the two refrigerator evaporators (21) are respectively connected to the inlet end of the variable frequency compressor (1); and the second solenoid valve (14), the third solenoid valve (15), the first shutoff device (16) and the second shutoff device (17) are respectively electrically connected to the controller.

3. A kitchen cooling and heating control system according to claim 1, characterized in that: The variable frequency compressor (1) is provided with a refrigerant, and the outlet end of the variable frequency compressor (1) is provided with a condenser mechanism (4), the condenser mechanism (4) is a dual-purpose condenser heat exchange structure of air cooling and water cooling in series, the condenser mechanism (4) is respectively connected to a heating mechanism (2) for heating hot water and a cooling mechanism (3) for cooling a refrigerator and an ice storage, the cooling mechanism (3) is a parallel heat dissipation structure for dissipating heat from the refrigerator and the ice storage, and the cooling mechanism (3) is also connected to the inlet end of the variable frequency compressor (1).

4. A kitchen cooling and heating control system according to claim 1, characterized in that: The inlet end of the air-cooled condenser (11) is connected to the outlet end of the water-cooled condenser (5), and the inlet end of the cold storage evaporator (18) and the inlet ends of the two refrigerator evaporators (21) are connected in parallel to the outlet end of the air-cooled condenser (11).

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