Air conditioning device capable of accumulating cold

Abstract

The invention discloses an air conditioning device capable of accumulating cold. The air conditioning device comprises a compressor, a condenser, a plate type evaporator, a copper pipe sleeve fin type evaporator and an evaporation coil, and one flow channel of the compressor, the condenser and the plate type evaporator forms a refrigerant circulation loop; the compressor, the condenser and the copper pipe sleeve finned evaporator form a refrigerant circulation loop; the system further comprises a first water storage tank, a second water storage tank and a third water storage tank. The first water storage tank, the first water pump and the other flow channel of the plate-type evaporator form a water loop. The first water storage tank, the second water pump, the electromagnetic valves, the third water pump and the third water storage tank form a water loop; the first water storage tank, the second water pump, the plurality of electromagnetic valves, the third water pump and the second water storage tank form a water loop; the third water storage tank, the plurality of electromagnetic valves, the fourth water pump and the evaporation coil form a water loop; the second water storage tank, the multiple electromagnetic valves, the fourth water pump and the evaporation coil form a water loop. Rapid refrigeration and cooling in a room can be achieved.

Description

Technical Field

[0001] The invention relates to the field of air conditioning devices, in particular to an air conditioning device capable of storing cold. Background Art

[0002] At present, with the increasing improvement of people's living standards in China, almost every urban household has installed air conditioning devices. In the hot summer, air conditioning devices can provide residents with a cool indoor environment, and people's comfort in summer life has been greatly improved compared with the past. However, the air conditioning devices currently used by residents also have certain limitations. They generally cannot immediately reduce the indoor air to a lower temperature. It takes a certain amount of time for the air conditioning device to cool down the indoor environment. But when residents encounter extremely high temperatures, people often hope that the air conditioning device can quickly reduce the indoor environment to a lower temperature. In order to shorten the cooling time, people generally adopt the method of configuring an air conditioning device with a large cooling capacity. The air conditioning device with a large cooling capacity can quickly cool down the indoor environment, but the disadvantage of this approach is that the air conditioning device with a large cooling capacity also consumes a large amount of power, cannot achieve effective energy saving, and has a high electricity cost. How to use an air conditioning device with a smaller cooling capacity to quickly cool down the indoor environment has become a worthwhile research topic. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an air conditioning device capable of storing cold, which can slowly store cold energy while cooling the indoor environment in hot weather. When extremely hot weather occurs, the previously stored cold energy can be quickly released to quickly cool the indoor environment. The device is easy to implement and has low energy consumption.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: An air conditioning device capable of storing cold, comprising a compressor (1), a condenser (3), a plate evaporator (5), a copper tube sleeve finned evaporator (20), and an evaporating coil (23); the plate evaporator (5) has two flow channels; the condenser (3) is provided with a condensing fan (2); the copper tube sleeve finned evaporator (20) and the evaporating coil (23) are integrated into one body and share the evaporating fan (22); one of the flow channels of the compressor (1), condenser (3), and plate evaporator (5) constitutes a refrigerant circulation loop; the compressor (1), condenser (3), and copper tube sleeve finned evaporator (20) constitute another refrigerant circulation loop; It also includes a first water storage tank (7), a second water storage tank (13), and a third water storage tank (17), wherein the first water storage tank (7), the second water storage tank (13), and the third water storage tank (17) are respectively used to store water; wherein: The first water storage tank (7) forms a water circuit with another flow channel of the plate evaporator (5) via the first water pump (6); The first water storage tank (7) forms a water circuit with the third water storage tank (17) via the second water pump (8), the first solenoid valve (9), the third solenoid valve (12), the sixth solenoid valve (16), the fourth solenoid valve (14), the third water pump (10); The first water storage tank (7) forms a water circuit with the second water storage tank (13) via the second water pump (8), the first solenoid valve (9), the second solenoid valve (11), the fifth solenoid valve (15), the fourth solenoid valve (14), the third water pump (10); The third water storage tank (17) forms a water circuit with the evaporation coil (23) via a sixth solenoid valve (16), a seventh solenoid valve (18), a fourth water pump (19), an eighth solenoid valve (27), and a third solenoid valve (12); The second water storage tank (13) forms a water circuit with the evaporating coil (23) via a fifth solenoid valve (15), a seventh solenoid valve (18), a fourth water pump (19), an eighth solenoid valve (27), and the second solenoid valve (11).

[0005] Furthermore, it also includes a controller (26), wherein the controller (26) is electrically connected to the compressor (1), the condensing fan (2), the evaporating fan (22), and all solenoid valves and all water pump controls.

[0006] Furthermore, it also includes temperature sensors respectively arranged in the first water storage tank (7), the second water storage tank (13), and the third water storage tank (17), and each temperature sensor is respectively electrically connected to the controller (26) for signal transmission.

[0007] Compared with the prior art, the present invention has the following advantages: By utilizing the present invention, the air conditioning device can store cold energy in normal high temperature weather, and when extremely high temperature weather comes, the air conditioning device can quickly release the stored large amount of cold energy to achieve rapid cooling and cooling in the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structural principle of an air conditioning device capable of storing cold; Figure 2 It is a schematic diagram of the working principle of water circulation of an air conditioning device that can store cold.

[0009] Figure 3 It is a schematic diagram B of the working principle of water circulation of an air conditioning device that can store cold.

[0010] Figure 4 It is a schematic diagram of the working principle of the water circulation of an air conditioning device that can store cold. C.

[0011] Figure 5It is a schematic diagram of the working principle of the water circulation of an air conditioning device that can store cold.

[0012] Figure 6 It is a schematic diagram E of the working principle of the water circulation of an air conditioning device that can store cold. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] like Figure 1 As shown, this embodiment discloses an air conditioning device capable of storing cold, including a compressor 1, a condenser 3, a plate evaporator 5, a copper tube sleeve fin evaporator 20, an evaporation coil 23, a first expansion valve 4, and a second expansion valve 21. The plate evaporator 5 has two flow channels, the condenser 3 is provided with a condensing fan 2, and the copper tube sleeve fin evaporator 20 and the evaporation coil 23 are integrated and share an evaporation fan 22.

[0015] The refrigerant outlet of the compressor 1 is connected to the inlet of the condenser 3 through a pipeline, and the outlet of the condenser 3 is connected to the refrigerant pipeline 24 with a main-branch structure. The main port of the refrigerant pipeline 24 is connected to the outlet of the condenser 3, and a branch port of the refrigerant pipeline 24 is connected to the inlet of the first expansion valve 4. The outlet of the first expansion valve 4 is connected to one end of the first flow channel of the plate evaporator 5 through a pipeline, and the other end of the first flow channel of the plate evaporator 5 is connected to the refrigerant inlet of the compressor 1 through a pipeline, thereby the compressor 1, the condenser 3, the first expansion valve 4, and the first flow channel of the plate evaporator 5 constitute a refrigerant circulation loop.

[0016] Another branch port of the refrigerant pipeline 24 connected to the outlet of the condenser 3 is connected to the inlet of the second expansion valve 21, and the outlet of the second expansion valve 21 is connected to one end of the copper tube sleeve fin type evaporator 20 through a pipeline, and the other end of the copper tube sleeve fin type evaporator 20 is connected to the refrigerant inlet of the compressor through a pipeline, thereby the compressor 1, the condenser 3, the second expansion valve 21, and the copper tube sleeve fin type evaporator 20 constitute another refrigerant circulation loop.

[0017] This embodiment further includes a first water storage tank 7, a second water storage tank 13, a third water storage tank 17, and a plurality of water pumps and a plurality of solenoid valves. The first water storage tank 7, the second water storage tank 13, and the third water storage tank 17 are used to store water, respectively, wherein: The first water tank 7 has an outlet connected to the inlet of the first water pump 6 through a pipeline, the outlet of the first water pump 6 is connected to one end of the second flow channel of the plate evaporator 5 through a pipeline, and the other end of the second flow channel of the plate evaporator 5 is connected to an inlet of the first water tank through a pipeline, thereby the first water tank 7, the first water pump 6, and the second flow channel of the plate evaporator 5 form a water circuit.

[0018] The first water tank 7 has an outlet connected to the inlet of the second water pump 8 through a pipeline, the outlet of the second water pump 8 is connected to an inlet of the third water tank 17 through the first solenoid valve 9 and the third solenoid valve 12 in sequence, the third water tank 17 has an outlet connected to the inlet of the third water pump 10 through the sixth solenoid valve 16 and the fourth solenoid valve 14 in sequence, and the outlet of the third water pump 10 is connected to an inlet of the first water tank 7 through a pipeline. Thus, the first water tank 7, the second water pump 8, the first solenoid valve 9, the third solenoid valve 12, the third water tank 17, the sixth solenoid valve 16, the fourth solenoid valve 14, and the third water pump 10 form a water circuit.

[0019] A bypass pipeline is led out from the pipeline between the first solenoid valve 9 and the third solenoid valve 12, and is connected to an inlet of the second water tank 13 through the second solenoid valve 11. An outlet of the second water tank 13 is bypassed and connected to the pipeline between the sixth solenoid valve 16 and the fourth solenoid valve 14 through the fifth solenoid valve 15. Thus, the first water tank 7, the second water pump 8, the first solenoid valve 9, the second solenoid valve 11, the second water tank 13, the fifth solenoid valve 15, the fourth solenoid valve 14, and the third water pump 10 form a water circuit.

[0020] A bypass pipeline is led out from the pipeline between the sixth solenoid valve 16 and the fourth solenoid valve 14, and is connected to the inlet of the fourth water pump 19 through the seventh solenoid valve 18. The outlet of the fourth water pump 19 is connected to one end of the evaporation coil 23 through a pipeline, and the other end of the evaporation coil 23 is bypassed and connected to the pipeline between the first solenoid valve 9 and the third solenoid valve 12 through the eighth solenoid valve 27. Thus, the third water storage tank 17, the sixth solenoid valve 16, the seventh solenoid valve 18, the fourth water pump 19, the evaporation coil 23, the eighth solenoid valve 27, and the third solenoid valve 12 form a water circuit.

[0021] In addition, the second water storage tank 13 also forms a water circuit with the evaporation coil 23 through the fifth solenoid valve 15 , the seventh solenoid valve 18 , the fourth water pump 19 , the eighth solenoid valve 27 , the second solenoid valve 11 .

[0022] This embodiment also includes a controller 26, which is electrically connected to the compressor 1, the condensing fan 2, the evaporating fan 22, all the solenoid valves, and all the water pumps. A temperature sensor is installed in each of the first water storage tank 7, the second water storage tank 13, and the third water storage tank 17, and each temperature sensor is electrically connected to the controller 26 for signal transmission.

[0023] In this embodiment, the cold storage air conditioning device uses R134a as the refrigerant. The low-temperature and low-pressure gaseous refrigerant in the refrigeration system is sucked in by the compressor 1 and compressed into a high-temperature and high-pressure gas. In the condenser 3, the air sucked into the outdoor unit by the condensing fan 2 is cooled into a high-pressure liquid, and then divided into two paths. One path flows into the plate evaporator 5 after throttling and reducing the pressure through the first expansion valve 4, wherein the low-pressure liquid refrigerant evaporates and absorbs the heat of the water in the plate evaporator 5. The water in the plate evaporator 5 is extracted from the first water storage tank 7 by the first water pump 6. The water in the first water storage tank 7 continuously flows through the first water pump 6 and the plate evaporator 5, and then flows back to the first water storage tank 7. The water continuously releases heat and cools down in the plate evaporator 5, and the low-pressure liquid refrigerant becomes a gaseous refrigerant after absorbing the heat. The other path is depressurized by the second expansion valve throttle 21 and then flows into the copper tube sleeve fin evaporator 20, where the low-pressure liquid refrigerant evaporates and absorbs the heat of the air sucked into the indoor unit by the indoor evaporation fan 22, so as to cool the indoor air and condense the water vapor in the air to reduce the humidity of the air. The evaporated refrigerant gas of the two paths is merged together and then sucked into the compressor 1 again, and the cycle is repeated. On the one hand, the purpose of indoor cooling and dehumidification is achieved. On the other hand, while the air conditioning device cools the room, a small part of the cooling capacity of the air conditioning device continuously reduces the water in the first water storage tank 7 to the required lower temperature.

[0024] The controller 26 has a temperature sensor that can sense the temperature of the water in the first water tank 7. When the temperature of the water in the first water tank 7 reaches the required temperature (the temperature can be set to any value between 2°C and 5°C), the controller 26 controls the first water pump 6 to stop working, the second water pump 8 to start, and only the first solenoid valve 9 and the third solenoid valve 12 are opened. The second water pump 8 pumps the low-temperature water in the first water tank 7 to the third water tank 17 for storage (see Figure 2 ).

[0025] After the water in the first water tank 7 is completely pumped out, the controller 26 controls the third water pump 10 to start, the second water pump 8 is turned off, and only the fifth solenoid valve 15 and the fourth solenoid valve 14 are opened. The third water pump 10 pumps the normal temperature water in the second water tank 13 into the first water tank 1 (see Figure 3 ).

[0026] After the first water storage tank 7 is full of water, the third water pump 10 is turned off, all electromagnetic valves are closed, and the first water pump 6 is started. The water in the first water storage tank 7 continuously flows through the first water pump 6 and the plate evaporator 5, and then flows back to the first water storage tank 7. The water continuously releases heat in the plate evaporator 5 to cool down. When the temperature of the water in the first water storage tank 7 reaches the required temperature (≤5°C), the first water pump 6 stops working. Figure 1 .

[0027] If the water temperature in the third water storage tank 17 is not higher than 5°C, all water pumps and solenoid valves of the air conditioning device will not work. If the water temperature in the third water storage tank 13 is higher than 15°C, the controller 26 controls the first water pump 6 to stop working, the second water pump 8 to start, only the first solenoid valve 9 and the second solenoid valve 11 are opened, and the second water pump 8 pumps the low-temperature water in the first water storage tank 7 into the second water storage tank 13 for storage (see Figure 4 ).

[0028] When encountering extremely high temperature weather, the indoor room needs to be cooled quickly, the sensor of the controller 26 detects the water level and temperature of the third water tank 17 and the second water tank 13. If it is detected that only the water temperature in the third water tank 17 is low (≤5°C) and the water in the water tank is full, the fourth water pump 19 is started, and only the third solenoid valve 12, the sixth solenoid valve 16, the eighth solenoid valve 27 and the seventh solenoid valve 18 are opened. The fourth water pump 19 draws low-temperature water in the third water tank 17, flows through the evaporation coil 23, absorbs the heat of the air sucked by the indoor evaporation fan 22 and flowing through the evaporation coil of the indoor unit, so as to cool the indoor air, and the heated water flows back to the third water tank 17, see Figure 5 .

[0029] If it is detected that only the water temperature in the second water storage tank 13 is low (≤5°C) and the water in the water tank is full, the fourth water pump 19 is started, and only the second solenoid valve 11, the seventh solenoid valve 18, the eighth solenoid valve 27 and the fifth solenoid valve 15 are opened. The fourth water pump 19 draws low-temperature water in the second water storage tank 13, flows through the evaporation coil 23, absorbs the heat of the air sucked through the evaporation coil by the indoor evaporation fan 22, cools the indoor air, and the heated water flows back to the second water storage tank 13. Figure 6 .

[0030] If it is detected that only the water temperature in the third water tank 17 and the second water tank 13 is low (≤5°C), and the water in the water tank is full, the fourth water pump 19 is started, and only the third solenoid valve 12, the sixth solenoid valve 16, the eighth solenoid valve 27 and the seventh solenoid valve 18 are opened first, and the fourth water pump 19 draws the low-temperature water in the third water tank 17, flows through the evaporation coil 23, absorbs the heat of the air sucked by the indoor evaporation fan 22 and flowing through the evaporation coil of the indoor unit, so as to cool the indoor air, and the heated water flows back to the third water tank 17, see Figure 5 .

[0031] If the water in the second water tank 13 exceeds 15°C, the third water pump 10 is started, and only the fifth solenoid valve 15 and the fourth solenoid valve 14 are opened, and the third water pump 10 draws the water in the second water tank 13 to the first water tank 7, and re-participates in the heat exchange between the water and the refrigerant in the plate evaporator 5; if the water in the third water tank 17 exceeds 15°C, the third water pump 10 is started, and only the sixth solenoid valve 16 and the fourth solenoid valve 14 are opened, and the third water pump 10 draws the water in the third water tank 17 to the first water tank 7, and re-participates in the heat exchange between the water and the refrigerant in the plate evaporator 5. Only one of the first water tank 7, the second water tank 13, and the third water tank 17 is empty, which is convenient for the circulation of cold water and hot water. Figure 1 .

[0032] like Figure 1 As shown, since the copper tube sleeve fin type evaporator 20 is already cooling the indoor air, the low temperature water in the evaporation coil 23 is also exchanging heat and cooling with the air flowing through the outer surface of the coil, so that the air conditioning device can quickly cool the room.

[0033] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0034] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. An air conditioning device capable of storing cold, characterized in that: The invention comprises a compressor (1), a condenser (3), a plate evaporator (5), a copper tube sleeve finned evaporator (20), and an evaporating coil (23); the plate evaporator (5) has two flow channels; the condenser (3) is provided with a condensing fan (2); the copper tube sleeve finned evaporator (20) and the evaporating coil (23) are integrated into one body and share the evaporating fan (22); one of the flow channels of the compressor (1), the condenser (3), and the plate evaporator (5) constitutes a refrigerant circulation loop; the compressor (1), the condenser (3), and the copper tube sleeve finned evaporator (20) constitute another refrigerant circulation loop; It also includes a first water storage tank (7), a second water storage tank (13), and a third water storage tank (17), wherein the first water storage tank (7), the second water storage tank (13), and the third water storage tank (17) are respectively used to store water; wherein: The first water storage tank (7) forms a water circuit with another flow channel of the plate evaporator (5) via the first water pump (6); The first water storage tank (7) forms a water circuit with the third water storage tank (17) via the second water pump (8), the first solenoid valve (9), the third solenoid valve (12), the sixth solenoid valve (16), the fourth solenoid valve (14), the third water pump (10); The first water storage tank (7) forms a water circuit with the second water storage tank (13) via the second water pump (8), the first solenoid valve (9), the second solenoid valve (11), the fifth solenoid valve (15), the fourth solenoid valve (14), the third water pump (10); The third water storage tank (17) forms a water circuit with the evaporation coil (23) via a sixth solenoid valve (16), a seventh solenoid valve (18), a fourth water pump (19), an eighth solenoid valve (27), and a third solenoid valve (12); The second water storage tank (13) forms a water circuit with the evaporating coil (23) via a fifth solenoid valve (15), a seventh solenoid valve (18), a fourth water pump (19), an eighth solenoid valve (27), and the second solenoid valve (11).

2. The cold storage air conditioning device according to claim 1, characterized in that: It also includes a controller (26), wherein the controller (26) is electrically connected to the compressor (1), the condensing fan (2), the evaporating fan (22), and all electromagnetic valves and all water pumps.

3. The cold storage air conditioning device according to claim 2, characterized in that: It also includes temperature sensors respectively arranged in the first water storage tank (7), the second water storage tank (13), and the third water storage tank (17), and each temperature sensor is respectively electrically connected to the controller (26) for signal transmission.

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