Air conditioning system

Abstract

The utility model discloses an air conditioning system. The air conditioning system comprises a refrigerating box, a heating box and a heat pump device. The refrigerating box is provided with a first air inlet and a first air outlet, and the heating box is provided with a second air inlet and a second air outlet. The refrigeration box is placed in the space needing refrigeration, and the heating box is placed in the space needing heating. The heat pump device comprises an evaporator, a condenser and a compressor, and the evaporator is arranged in the refrigeration box. And the condenser is arranged in the heating box. The compressor is arranged between the evaporator and the condenser, and the evaporator, the compressor and the condenser are sequentially connected through pipelines. External air enters the refrigeration box from the first air inlet, is refrigerated by the evaporator and then is exhausted into the space needing refrigeration from the first air outlet. And outside air enters the heating box from the second air inlet, is heated by the condenser and then is discharged into the space needing to be heated from the second air outlet. The refrigerating box and the heating box are combined, so that the waste heat utilization rate is high, the product is more energy-saving, and the cost is lower.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning system. Background Art

[0002] In the related art, the refrigeration equipment and the heating equipment are separately set up, and the refrigerant in the refrigeration equipment circulates between the evaporator, the compressor and the condenser, so that the refrigerant continuously absorbs heat when flowing through the evaporator to achieve refrigeration. However, when the refrigerant flows through the condenser, it changes from gas to liquid and releases a large amount of heat. This heat can only be discharged into the air as waste heat, resulting in low waste heat utilization and insufficient energy saving of the product. Utility Model Content

[0003] The purpose of the present application is to provide an air conditioning system, in which a refrigeration box and a heating box are combined, the waste heat utilization rate is high, the product is more energy-saving, and the cost is low.

[0004] The present application provides an air conditioning system, including a refrigeration box, a heating box and a heat pump device. The refrigeration box is provided with a first air inlet and a first air outlet, and the heating box is provided with a second air inlet and a second air outlet. The refrigeration box is placed in a space to be refrigerated, and the heating box is placed in a space to be heated.

[0005] The heat pump device includes an evaporator, a condenser and a compressor. The evaporator is arranged in the refrigeration box and is used to cool the air in the refrigeration box. The condenser is arranged in the heating box and is used to heat the air in the heating box. The compressor is arranged between the evaporator and the condenser. The evaporator, the compressor and the condenser are connected in sequence through pipelines.

[0006] Outside air enters the refrigeration box from the first air inlet, and is discharged from the first air outlet to the space to be refrigerated after being cooled by the evaporator. Outside air enters the heating box from the second air inlet, and is discharged from the second air outlet to the space to be heated after being heated by the condenser.

[0007] The air-conditioning system provided in the embodiment of the present application provides liquid refrigerant to the evaporator in the refrigeration box. The liquid refrigerant is converted into a low-temperature and low-pressure gas refrigerant after flowing through the evaporator. The low-temperature and low-pressure gas refrigerant flows to the compressor. The compressor compresses the low-temperature and low-pressure gas refrigerant into a high-temperature and high-pressure gas refrigerant. The high-temperature and high-pressure gas refrigerant is then transported to the condenser in the heating box. The gas refrigerant flows to the condenser and is converted into a liquid refrigerant.

[0008] The liquid refrigerant absorbs heat in the process of being converted into a gaseous refrigerant in the refrigeration box, and the heat of the air entering the refrigeration box through the first air inlet is absorbed to achieve cooling of the air. The cooled air is discharged from the first air outlet to the space to be refrigerated.

[0009] The gas refrigerant releases heat in the process of being converted into liquid refrigerant in the heating box. The released heat contacts the air entering the heating box from the second air inlet to heat the air. The heated air is discharged from the second air outlet to the space to be heated.

[0010] In the related art, the refrigeration box and the heating box are separately set up, and the refrigerant in the refrigeration box circulates between the evaporator, the compressor and the condenser, so that the refrigerant continuously absorbs heat when flowing through the evaporator to achieve refrigeration. However, when the refrigerant flows through the condenser, it changes from gas to liquid and releases a large amount of heat, which can only be discharged into the air as waste heat. In a separately set heating box, the heating box can be heated by a heating element, such as a condenser and a heating wire.

[0011] The air conditioning system provided in the embodiment of the present application is provided with a combined refrigeration box and a heating box, the heating element in the heating box originally provided separately is omitted, and the condenser in the refrigeration box originally provided separately is provided in the heating box. That is, the heating box uses the waste heat generated by the condenser for heating, thereby improving the utilization rate of the waste heat and making the product more energy-efficient. Compared with the heating box provided separately, the heating box of this embodiment omits the heating element and has a lower cost.

[0012] In some embodiments, the compressor is disposed in the heating box, and the compressor is opposite to the second air inlet. When air enters the heating box from the second air inlet, the air will blow to the compressor, and the compressor can be cooled, thereby increasing the life of the compressor. In addition, heat is generated during the operation of the compressor, and the air will be heated when it contacts the compressor. That is, by using the waste heat generated by the compressor to heat the air, the waste heat utilization rate is higher and the product is more energy-efficient.

[0013] In some embodiments, the air conditioning system further comprises a water collecting pan and a cooling pipe, the water collecting pan is provided with a receiving cavity with one side opening, the water collecting pan is arranged in the refrigeration box and is located at the bottom of the evaporator, and the opening of the receiving cavity faces the evaporator. A portion of the cooling pipe is arranged in the heating box and fits the outer side of the compressor. One end of the cooling pipe extends into the receiving cavity, and the other end of the cooling pipe extends from the heating box to the outer side of the heating box.

[0014] The evaporator will produce condensed water during operation, and the temperature of the condensed water is about 13°C. After the condensed water falls from the evaporator into the containing chamber, the condensed water flows to the outside of the compressor through the cooling pipe to cool the compressor. By providing a water collecting tray and a cooling pipe, the condensed water of the evaporator can not only be discharged from the refrigeration box, but also the condensed water can cool the compressor during the discharge process. The embodiment of the present application uses the condensed water generated by the evaporator itself for cooling, and the product is more environmentally friendly when used.

[0015] In some embodiments, the cooling tube includes a first sub-tube and a second sub-tube, the second sub-tube is a coil, and the second sub-tube is spirally attached to the outside of the compressor. One end of the first sub-tube extends into the accommodating cavity, and one end of the second sub-tube is connected to an end of the first sub-tube away from the accommodating cavity. The other end of the second sub-tube extends from the inside of the heating box to the outside of the heating box.

[0016] By setting the second sub-tube as a coil, the contact area between the second sub-tube and the compressor is larger, and the cooling effect of the compressor is better. At the same time, the cooling tube is set as the first sub-tube and the second sub-tube, which facilitates the production and assembly of the cooling tube.

[0017] In some embodiments, the air conditioning system further includes a lift pump, which is disposed between the water collecting pan and the compressor, and is connected to the cooling pipe. The lift pump is used to transport condensed water to the outside of the compressor. If the lift pump is not provided, the refrigeration box needs to be placed at a higher position than the heating box so that the condensed water can flow to the outside of the compressor under the action of gravity. In this embodiment, by providing a lift pump, the refrigeration box is placed at a lower position than the heating box, and the condensed water can also flow to the outside of the compressor under the pressure of the lift pump. This makes it possible to place the refrigeration box and the heating box without height restrictions.

[0018] In some embodiments, the condenser and the evaporator are connected by a pipe. The gas refrigerant flows to the condenser and then turns into liquid refrigerant. The liquid refrigerant flows back to the evaporator through the pipe, and the evaporator reuses the liquid refrigerant. That is, the refrigerant circulates between the evaporator, the compressor and the condenser, and the refrigerant can be reused, so that the product is more energy-efficient during use.

[0019] In some embodiments, the heat pump device further includes a throttle valve, which is disposed between the condenser and the evaporator, and the condenser, the throttle valve, and the evaporator are sequentially connected by pipelines. By disposing the throttle valve between the condenser and the evaporator, the liquid refrigerant becomes a spray after flowing through the throttle valve, and then flows through the evaporator. The liquid refrigerant becomes a spray and then flows through the evaporator, and the liquid refrigerant vaporizes faster, and thus absorbs heat faster, so that the refrigeration box can cool faster.

[0020] In some embodiments, the air conditioning system further comprises a surface cooler, which is arranged in the refrigeration box and is used to cool the air in the refrigeration box. By arranging the surface cooler, the refrigeration effect of the refrigeration box is improved.

[0021] In some embodiments, the air conditioning system further comprises a heater, which is arranged in the heating box and is used to heat the air in the heating box. By arranging the heater, the heating effect of the heating box is improved.

[0022] In some embodiments, the air conditioning system further comprises a first filter, a second filter, a third filter and a fourth filter, wherein the first filter and the second filter are disposed in the refrigeration box and between the first air inlet and the evaporator, and the third filter and the fourth filter are disposed in the heating box and between the second air inlet and the condenser.

[0023] By providing the first filter, the second filter, the third filter and the fourth filter, it is prevented that when air enters the refrigeration box and the heating box, other objects are carried into the refrigeration box and the heating box, thereby avoiding damage to the evaporator and the condenser.

[0024] In some embodiments, the air conditioning system further includes a first blower and a second blower, wherein the first blower is disposed in the refrigeration box and is located between the evaporator and the first air outlet. The second blower is disposed in the heating box and is located between the condenser and the second air outlet. By providing the first blower and the second blower, the air circulation in the refrigeration box and the heating box is smoother.

[0025] In the related art, the refrigeration box and the heating box are separately set up, and the refrigerant in the refrigeration box circulates between the evaporator, the compressor and the condenser, so that the refrigerant continuously absorbs heat when flowing through the evaporator to achieve refrigeration. However, when the refrigerant flows through the condenser, it changes from gas to liquid and releases a large amount of heat, which can only be discharged into the air as waste heat. In a separately set heating box, the heating box can be heated by a heating element, such as a condenser and a heating wire.

[0026] The air conditioning system provided in the embodiment of the present application is provided with a combined refrigeration box and a heating box, the heating element in the heating box originally provided separately is omitted, and the condenser in the refrigeration box originally provided separately is provided in the heating box. That is, the heating box uses the waste heat generated by the condenser for heating, thereby improving the utilization rate of the waste heat and making the product more energy-efficient. Compared with the heating box provided separately, the heating box of this embodiment omits the heating element and has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation scheme are briefly introduced below.

[0028] Figure 1 It is a schematic diagram of the air conditioning system provided in an embodiment of the present application.

[0029] Figure 2 is a schematic diagram of an air conditioning system provided by another embodiment.

[0030] Figure 3 yes Figure 1 Schematic diagram of the heat pump device of the air conditioning system shown in.

[0031] Figure 4 yes Figure 1 Schematic diagram of the water collection pan and compressor connections for an air conditioning system shown in .

[0032] Description of reference numerals: 1000 - air conditioning system, 100 - refrigeration box, 101 - first air inlet, 102 - first fresh air outlet, 103 - first return air outlet, 104 - first air outlet, 200 - heating box, 201 - second air inlet, 202 - second fresh air outlet, 203 - second return air outlet, 204 - second air outlet, 300 - heat pump device, 301 - evaporator, 302 - condenser, 303 - compressor, 304 - first pipeline, 305 - second pipeline, 306 - third pipeline, 307 - fourth pipeline, 308 - throttling Valve, 400-water collecting tray, 401-accommodating chamber, 500-cooling pipe, 501-first sub-pipe, 502-second sub-pipe, 600-lifting pump, 700-surface cooler, 800-heater, 910-first filter, 920-second filter, 930-third filter, 940-fourth filter, 950-first mixing zone, 955-refrigeration zone, 960-second mixing zone, 965-heating zone, 970-first air supply fan, 975-second air supply fan, 980-first silencer static pressure box, 985-second silencer static pressure box. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 The air conditioning system 1000 provided in the embodiment of the present application includes a refrigeration box 100, a heating box 200 and a heat pump device 300. The refrigeration box 100 is provided with a first air inlet 101 and a first air outlet 104, and the heating box 200 is provided with a second air inlet 201 and a second air outlet 204. The refrigeration box 100 is placed in a space to be refrigerated, and the heating box 200 is placed in a space to be heated.

[0035] The heat pump device 300 includes an evaporator 301, a condenser 302 and a compressor 303. The evaporator 301 is disposed in the refrigeration box 100, and the evaporator 301 is used to cool the air in the refrigeration box 100. The condenser 302 is disposed in the heating box 200, and the condenser 302 is used to heat the air in the heating box 200. The compressor 303 is disposed between the evaporator 301 and the condenser 302, and the evaporator 301, the compressor 303 and the condenser 302 are connected in sequence through pipelines.

[0036] Outside air enters the refrigeration box 100 from the first air inlet 101, and is discharged from the first air outlet 104 to the space to be refrigerated after being cooled by the evaporator 301. Outside air enters the heating box 200 from the second air inlet 201, and is discharged from the second air outlet 204 to the space to be heated after being heated by the condenser 302.

[0037] Specifically, the heat pump device 300 further includes a first pipe 304 and a second pipe 305. The evaporator 301 and the compressor 303 are connected through the first pipe 304, and the compressor 303 and the condenser 302 are connected through the second pipe 305. The first pipe 304 and the second pipe 305 are copper pipes.

[0038] The first air inlet 101 includes a first fresh air inlet 102 and a first return air inlet 103. The outside air entering the refrigeration box 100 includes the air in the space to be refrigerated and the air outside the space to be refrigerated. The air outside the space to be refrigerated enters the refrigeration box 100 from the first fresh air inlet 102, and the air in the space to be refrigerated enters the refrigeration box 100 from the first return air inlet 103.

[0039] The second air inlet 201 includes a second fresh air inlet 202 and a second return air inlet 203. The outside air entering the heating box 200 includes the air outside the space to be heated and the air inside the space to be heated. The air outside the space to be heated enters the heating box 200 from the second fresh air inlet 202, and the air inside the space to be heated enters the heating box 200 from the second return air inlet 203.

[0040] The air conditioning system 1000 provided in the embodiment of the present application provides liquid refrigerant to the evaporator 301 in the refrigeration box 100. The liquid refrigerant is converted into a low-temperature and low-pressure gas refrigerant after flowing through the evaporator 301. The low-temperature and low-pressure gas refrigerant flows to the compressor 303 through the first pipe 304. The compressor 303 compresses the low-temperature and low-pressure gas refrigerant into a high-temperature and high-pressure gas refrigerant. The high-temperature and high-pressure gas refrigerant flows to the condenser 302 in the heating box 200 through the second pipe 305. The high-temperature and high-pressure gas refrigerant flows to the condenser 302 and is converted into liquid refrigerant.

[0041] The liquid refrigerant absorbs heat in the process of being converted into a gaseous refrigerant in the refrigeration box 100, and the heat of the air entering the refrigeration box 100 through the first air inlet 101 is absorbed to cool the air, and the cooled air is discharged from the first air outlet 104 to the space to be refrigerated.

[0042] The gas refrigerant releases heat in the process of being converted into liquid refrigerant in the heating box 200. The released heat contacts the air entering the heating box 200 from the second air inlet 201 to heat the air. The heated air is discharged from the second air outlet 204 to the space to be heated.

[0043] In the related art, the refrigeration box 100 and the heating box 200 are separately arranged, and the refrigerant in the refrigeration box 100 circulates between the evaporator 301, the compressor 303 and the condenser 302, so that the refrigerant continuously absorbs heat when flowing through the evaporator 301 to achieve refrigeration. However, when the refrigerant flows through the condenser 302, it changes from gas to liquid and releases a large amount of heat, which can only be discharged into the air as waste heat. In the separately arranged heating box 200, the heating box 200 can be heated by a heating element, such as the condenser 302 and the heating wire.

[0044] The air conditioning system 1000 provided in the embodiment of the present application is provided with a combination of a refrigeration box 100 and a heating box 200, the heating element in the heating box 200 originally provided separately is omitted, and the condenser 302 in the refrigeration box 100 originally provided separately is provided in the heating box 200. That is, the heating box 200 uses the waste heat generated by the condenser 302 for heating, thereby improving the utilization rate of the waste heat and making the product more energy-efficient. Compared with the heating box 200 provided separately, the heating box 200 of this embodiment omits the heating element, and the cost is lower.

[0045] In the field of lithium battery production, lithium battery raw materials undergo pulping, sheet making, lamination, and liquid injection to form power lithium battery cells. In order to improve the battery life, test battery performance and quality grade, charging and discharging, capacity division, high temperature soaking, and high temperature aging must be carried out in a specified temperature environment before the single battery is assembled. Under the processes of charging, discharging, and capacity division, the suitable temperature of the battery cell is 25℃±3℃, while the suitable temperature of the battery cell for processes such as high temperature soaking and high temperature aging is 50℃±5℃.

[0046] In order to meet the environmental requirements for battery production, the air conditioning system provided in the embodiment of the present application can be used to process the air. The refrigeration box 100 is placed in an environment where charging, discharging, and capacity separation processes are performed, and the heating box 200 is placed in an environment where high-temperature infiltration and high-temperature aging processes are performed.

[0047] In some embodiments, please refer to Figure 1 The compressor 303 is disposed in the heating box 200 , and the compressor 303 is opposite to the second air inlet 201 .

[0048] Specifically, the compressor 303 is opposite to the second fresh air inlet 202. When air enters the heating box 200 from the second fresh air inlet 202, the air will be blown to the compressor 303. The compressor 303 can use the air to cool down, thereby increasing the life of the compressor 303. In addition, the compressor 303 generates heat during operation, and the air will be heated when it contacts the compressor 303. That is, by using the waste heat generated by the compressor 303 to heat the air, the waste heat utilization rate is higher and the product is more energy-efficient.

[0049] For other embodiments, please refer to Figure 2 The compressor 303 may also be disposed in the refrigeration box 100 , and the compressor 303 is opposite to the first fresh air inlet 102 and the first return air inlet 103 .

[0050] In some embodiments, please refer to Figure 1 and Figure 4 The air conditioning system 1000 further includes a water collecting pan 400 and a cooling pipe 500. The water collecting pan 400 is provided with a receiving chamber 401 with one side opening. The water collecting pan 400 is arranged in the refrigerating box 100 and is located at the bottom of the evaporator 301. The opening of the receiving chamber 401 faces the evaporator 301. A part of the cooling pipe 500 is arranged in the heating box 200 and is attached to the outer side of the compressor 303. One end of the cooling pipe 500 extends into the receiving chamber 401, and the other end of the cooling pipe 500 extends from the heating box 200 to the outer side of the heating box 200.

[0051] Specifically, the cooling pipe 500 is a galvanized steel pipe. The evaporator 301 generates condensed water during operation, and the temperature of the condensed water is about 13°C. After the condensed water falls from the evaporator 301 into the accommodating chamber 401, the condensed water flows to the outside of the compressor 303 through the cooling pipe 500 to cool the compressor 303, so that the compressor 303 can be better cooled, and finally the condensed water is discharged to the outside of the heating box 200.

[0052] By providing the water collecting pan 400 and the cooling pipe 500, the condensed water of the evaporator 301 can not only be discharged from the refrigeration box 100, but also cool the compressor 303 during the discharge process. The embodiment of the present application uses the condensed water generated by the evaporator 301 itself for cooling, and does not require additional coolant for cooling, so the product is more energy-saving and environmentally friendly when used.

[0053] In some embodiments, please refer to Figure 1 and Figure 4 The cooling tube 500 includes a first sub-tube 501 and a second sub-tube 502. The second sub-tube 502 is a coil. The second sub-tube 502 is a spiral pipe. The second sub-tube 502 spirals and fits the outside of the compressor 303. One end of the first sub-tube 501 extends into the accommodating chamber 401, and one end of the second sub-tube 502 is connected to one end of the first sub-tube 501 away from the accommodating chamber 401. The other end of the second sub-tube 502 extends from the inside of the heating box 200 to the outside of the heating box 200.

[0054] By configuring the second sub-tube 502 as a coil, the contact area between the second sub-tube 502 and the compressor 303 is larger, and the cooling effect of the compressor 303 is better. At the same time, configuring the cooling tube 500 as the first sub-tube 501 and the second sub-tube 502 facilitates the production and assembly of the cooling tube 500.

[0055] In some embodiments, please refer to Figure 1 and Figure 4 The air conditioning system 1000 further includes a lift pump 600, which is disposed between the water collecting pan 400 and the compressor 303, and is connected to the cooling pipe 500. Specifically, the lift pump 600 is connected to the first sub-pipe 501.

[0056] The lift pump 600 is used to transport the condensed water to the outside of the compressor 303. If the lift pump 600 is not provided, the refrigeration box 100 needs to be placed at a higher position than the heating box 200 so that the condensed water can flow to the outside of the compressor 303 under the action of gravity. The air conditioning system 1000 of this embodiment is provided with the lift pump 600, and the refrigeration box 100 is placed at a lower position than the heating box 200, and the condensed water can also flow to the outside of the compressor 303 under the pressure of the lift pump 600. This makes the placement of the refrigeration box 100 and the heating box 200 not restricted by height.

[0057] In some embodiments, please refer to Figure 1 , the condenser 302 and the evaporator 301 are connected by a pipeline. Specifically, the heat pump device 300 also includes a third pipeline 306, a fourth pipeline 307 and a throttle valve 308, the condenser 302 and the throttle valve 308 are connected through the third pipeline 306, and the throttle valve 308 and the evaporator 301 are connected through the fourth pipeline 307. The gas refrigerant flows to the condenser 302 and then turns into a liquid refrigerant. The liquid refrigerant flows back to the evaporator 301 through the third pipeline 306, the throttle valve 308 and the fourth pipeline 307, and the evaporator 301 reuses the liquid refrigerant. That is, the refrigerant circulates between the evaporator 301, the compressor 303, the condenser 302 and the throttle valve 308, the refrigerant can be reused, and the product is more energy-saving during use.

[0058] In some embodiments, please refer to Figure 1 and Figure 3 The heat pump device 300 further includes a throttle valve 308, which is disposed between the condenser 302 and the evaporator 301. The condenser 302 and the throttle valve 308 are connected through a third pipe 306, and the throttle valve 308 and the evaporator 301 are connected through a fourth pipe 307. By disposing the throttle valve 308 between the condenser 302 and the evaporator 301, the liquid refrigerant becomes a spray after flowing through the throttle valve 308, and then flows through the evaporator 301. The liquid refrigerant becomes a spray and then flows through the evaporator 301, and the liquid refrigerant vaporizes faster, and then absorbs heat faster, so that the refrigeration box 100 can cool faster.

[0059] In some embodiments, please refer to Figure 1The air conditioning system 1000 further includes a cooler 700, which is disposed in the refrigeration box 100, and the bottom of the cooler 700 is opposite to the opening of the accommodating chamber 401. The cooler 700 is used to cool the air in the refrigeration box 100. The principle of the cooler 700 is to allow the refrigerant to flow through the inner cavity of the pipe of the cooler 700, and the air in the refrigeration box 100 flows through the outer wall of the pipe for heat exchange to achieve the purpose of cooling the air.

[0060] By providing the surface cooler 700, the refrigeration effect of the refrigeration box 100 is improved. In addition, during the refrigeration process, the surface cooler 700 will also produce condensed water, which will fall into the accommodating cavity 401. The cooling pipe 500 can transport more condensed water to the outside of the compressor 303, so that the compressor 303 can be better cooled, thereby increasing the service life of the product.

[0061] In some embodiments, please refer to Figure 1 The air conditioning system 1000 further includes a heater 800, which is disposed in the heating box 200 and is used to heat the air in the heating box 200. The heater 800 may be a heating wire. By providing the heater 800, the heating effect of the heating box 200 is better.

[0062] In some embodiments, please refer to Figure 1 The air conditioning system 1000 further includes a first filter 910, a second filter 920, a third filter 930 and a fourth filter 940. The first filter 910 and the second filter 920 are disposed in the refrigeration box 100 and are located between the first air inlet 101 and the evaporator 301. The third filter 930 and the fourth filter 940 are disposed in the heating box 200 and are located between the second air inlet 201 and the condenser 302.

[0063] Specifically, the first filter 910 and the third filter 930 are primary filters, mainly used to filter dust particles larger than 5 microns. The second filter 920 and the fourth filter 940 are medium-efficiency filters, mainly used to filter dust particles larger than 1-5 microns.

[0064] The first filter 910 and the second filter 920 isolate the refrigeration box 100 into a first mixing zone 950 and a refrigeration zone 955, and the evaporator 301 and the surface cooler 700 are arranged in the refrigeration zone 955. The air entering the first mixing zone 950 carries dust, and needs to be filtered by the first filter 910 and the second filter 920 before entering the refrigeration zone 955, so as to prevent dust from entering the refrigeration zone 955 and avoid damaging the evaporator 301 and the surface cooler 700.

[0065] The third filter 930 and the fourth filter 940 isolate the heating box 200 into the second mixing zone 960 and the heating zone 965, and the condenser 302 and the heater 800 are arranged in the heating zone 965. The air entering the second mixing zone 960 carries dust, and needs to be filtered by the third filter 930 and the fourth filter 940 before entering the heating zone 965, so as to prevent the dust from entering the heating zone 965 and avoid damaging the condenser 302 and the heater 800.

[0066] In some embodiments, please refer to Figure 1 The air conditioning system 1000 further includes a first blower 970 and a second blower 975. The first blower 970 is disposed in the refrigerating box 100 and is located between the evaporator 301 and the first air outlet 104. The second blower 975 is disposed in the heating box 200 and is located between the condenser 302 and the second air outlet 204. The first blower 970 blows the cooled air out of the first air outlet 104, and the second blower 975 blows the heated air out of the second air outlet 204. By providing the first blower 970 and the second blower 975, the air circulation in the refrigerating box 100 and the heating box 200 is smoother.

[0067] In some embodiments, please refer to Figure 1 The air conditioning system 1000 also includes a first silencer static pressure box 980 and a second silencer static pressure box 985. The first silencer static pressure box 980 is arranged in the refrigeration box 100 and is located between the first air supply fan 970 and the first air outlet 104. The second silencer static pressure box 985 is arranged in the heating box 200 and is located between the second air supply fan 975 and the second air outlet 204.

[0068] By providing the first silencer static pressure box 980 and the second silencer static pressure box 985 , the noise and air pressure are reduced when the air is discharged from the first air outlet 104 and the second air outlet 204 .

[0069] In the field of lithium battery production, some production processes need to maintain a relatively high temperature, such as the high-temperature immersion process, which requires an ambient temperature control of 45℃ to 50℃ and requires heat throughout the year. Some production processes need to maintain a relatively low temperature, such as the charging process adjacent to the high-temperature immersion process. When the battery is charged, the equipment dissipates a lot of heat, and the ambient temperature control requirement is 25℃ to 28℃, which requires cooling throughout the year.

[0070] In the related technology, a chilled water refrigeration device is used to cool the charging process, and a steam-type heating device is used to heat the high-temperature immersion process. Table 1 is a parameter table for the operation of refrigeration equipment and heating equipment. The COP of the chilled water system is 4.5, the electricity cost is calculated at 0.7 yuan / kWh, and the steam cost is calculated at 300 yuan / ton. It can be seen from Table 1 that when the refrigeration equipment is used alone, the operating cost is 566,000 yuan / year, and when the heating equipment is used alone, the operating cost is 851,000 yuan / year, and the total operating cost is 1.417 million yuan / year.

[0071]

[0072]

[0073] Table 1

[0074] If the air conditioning system provided in the embodiment of the present application is used to heat and cool the battery production process, a refrigeration box can be used to cool the charging process, and a heating box can be used to heat the high-temperature immersion process. Table 2 is a parameter table for the operation of the refrigeration box and the heating box. The COP of the chilled water system is 4.5, the electricity cost is calculated at 0.7 yuan / kWh, and the steam cost is calculated at 300 yuan / ton. It can be seen from Table 2 that the operating cost of the refrigeration box is 597,000 yuan / year, the operating cost of the heating box is 415,000 yuan / year, and the total operating cost is 1.012 million yuan / year.

[0075]

[0076]

[0077] Table 2

[0078] In summary, when using separately set refrigeration equipment and heating equipment for cooling and heating respectively, the total operating cost is 1.417 million yuan / year, and when using the air conditioning system provided by the embodiment of the present application for cooling and heating, the total operating cost is 1.012 million yuan / year, which can save about 405,000 yuan in operating costs each year. And compared with the separately set refrigeration equipment and heating equipment, the annual energy saving rate of the air conditioning system provided by the embodiment of the present application is η = (141.7-101.2) / 141.7 = 28.6%.

[0079] Therefore, the air conditioning system provided by the embodiment of the present application is more energy-efficient and has lower operating costs.

[0080] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea.

Claims

1. An air conditioning system, characterized in that: It comprises a refrigeration box, a heating box and a heat pump device; the refrigeration box is provided with a first air inlet and a first air outlet, and the heating box is provided with a second air inlet and a second air outlet; the refrigeration box is placed in a space to be refrigerated, and the heating box is placed in a space to be heated; The heat pump device comprises an evaporator, a condenser and a compressor. The evaporator is arranged in the refrigeration box and is used to cool the air in the refrigeration box; the condenser is arranged in the heating box and is used to heat the air in the heating box; the compressor is arranged between the evaporator and the condenser, and the evaporator, the compressor and the condenser are connected in sequence through pipelines; Outside air enters the refrigeration box from the first air inlet, is cooled by the evaporator, and is discharged from the first air outlet to the space to be refrigerated; outside air enters the heating box from the second air inlet, is heated by the condenser, and is discharged from the second air outlet to the space to be heated.

2. The air conditioning system according to claim 1, characterized in that: The compressor is disposed in the heating box, and the compressor is opposite to the second air inlet.

3. The air conditioning system according to claim 1, characterized in that: It also includes a water collecting pan and a cooling pipe, wherein the water collecting pan is provided with a receiving cavity with an opening on one side, the water collecting pan is arranged in the refrigeration box and is located at the bottom of the evaporator, and the opening of the receiving cavity faces the evaporator; A portion of the cooling pipe is arranged in the heating box and is attached to the outer side of the compressor; one end of the cooling pipe extends into the accommodating cavity, and the other end of the cooling pipe extends from the heating box to the outer side of the heating box.

4. The air conditioning system according to claim 3, characterized in that: The cooling pipe comprises a first sub-pipe and a second sub-pipe, wherein the second sub-pipe is a coil, and the second sub-pipe is spirally attached to the outer side of the compressor; One end of the first sub-tube extends into the accommodating cavity, and one end of the second sub-tube is connected to an end of the first sub-tube away from the accommodating cavity; the other end of the second sub-tube extends from the inside of the heating box to the outside of the heating box.

5. The air conditioning system according to claim 3, characterized in that: It also includes a lifting pump, which is arranged between the water collecting tray and the compressor, and the lifting pump is connected to the cooling pipe.

6. The air conditioning system according to claim 1, characterized in that: The condenser and the evaporator are connected via a pipeline.

7. The air conditioning system according to claim 6, characterized in that: The heat pump device further comprises a throttle valve, which is arranged between the condenser and the evaporator. The condenser, the throttle valve and the evaporator are connected in sequence through pipelines.

8. The air conditioning system according to any one of claims 1 to 7, characterized in that: It also includes a surface cooler, which is arranged in the refrigeration box and is used to cool the air in the refrigeration box.

9. The air conditioning system according to any one of claims 1 to 7, characterized in that: It also includes a heater, which is arranged in the heating box and is used to heat the air in the heating box.

10. The air conditioning system according to any one of claims 1 to 7, characterized in that: It also includes a first filter, a second filter, a third filter and a fourth filter, wherein the first filter and the second filter are arranged in the refrigeration box and located between the first air inlet and the evaporator; The third filter and the fourth filter are disposed in the heating box and located between the second air inlet and the condenser.

11. The air conditioning system according to any one of claims 1 to 7, characterized in that: It also includes a first blower and a second blower, wherein the first blower is disposed in the refrigeration box and is located between the evaporator and the first air outlet; The second air blower is disposed in the heating box and is located between the condenser and the second air outlet.

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