Evaporation cold and heat pump

Abstract

The utility model discloses an evaporation cold and heat pump which comprises a shell, an evaporator, a heat exchange assembly and a compressor, the shell is provided with an installation cavity, the evaporator and the heat exchange assembly are both installed in the installation cavity, and the bottom of the evaporator is connected with a water receiving piece; the heat exchange assembly comprises a first condenser and a second condenser, the first condenser is provided with a first flow channel and a second flow channel, and the first flow channel is provided with a first connector and a second connector. The second flow channel exchanges heat with the first flow channel; the second condenser is provided with a third flow channel and a fourth flow channel, a third connector of the third flow channel is communicated with the water receiving piece, and the third connector of the third flow channel is communicated with the outside; one end of the fourth flow channel communicates with the second flow channel, the other end of the fourth flow channel communicates with the evaporator, and the fourth flow channel exchanges heat with the third flow channel; the compressor communicates with the second flow channel and the evaporator. Condensate water in the water receiving piece can be recycled and discharged into the third flow channel, heat exchange cooling is conducted on the refrigerant medium in the fourth flow channel, and recycling of the condensate water is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an evaporative cooling and heating pump. Background Art

[0002] An evaporative heat pump is an air conditioning device that combines evaporative cooling technology and heat pump technology. This device achieves efficient energy conversion in the cooling and heating processes through innovative heat exchange methods. Usually, when an evaporative heat pump is running in cooling mode, the evaporator of the indoor unit will absorb indoor heat, causing the surface temperature of the evaporator to drop. When the humid air in the room flows through the evaporator, the water vapor in the air will condense into water droplets on the surface of the evaporator when it is cold, resulting in condensed water. Therefore, a water receiving part is set under the evaporator of the existing evaporative heat pump, and the condensed water is collected and discharged to the outside through the water receiving part. However, the condensed water is directly discharged to the outside, which is easy to cause energy waste. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides an evaporative heat pump, in which the condensed water in the water receiving part can be recycled for secondary use.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] An evaporative heat pump, comprising:

[0006] A housing having a mounting cavity;

[0007] An evaporator, the evaporator is installed in the installation cavity, and a water receiving member is connected to the bottom of the evaporator;

[0008] A heat exchange component, the heat exchange component is installed in the installation cavity; the heat exchange component includes a first condenser and a second condenser, the first condenser has a first flow channel and a second flow channel, the first flow channel has a first interface and a second interface; the second flow channel exchanges heat with the first flow channel;

[0009] The second condenser has a third flow channel and a fourth flow channel, the third flow channel has a third interface and a fourth interface, one end of the third interface is connected to the water receiving member, and the other end of the third interface is connected to the outside; one end of the fourth flow channel is connected to the second flow channel, and the other end of the fourth flow channel is connected to the evaporator, and the fourth flow channel exchanges heat with the third flow channel;

[0010] A compressor is connected to the second flow channel and the evaporator respectively.

[0011] Furthermore, the water receiving member is a water receiving tray, and the water receiving tray is sleeved on the bottom of the evaporator.

[0012] Further, the first condenser includes a first inner tube and a first outer tube, the first outer tube is sleeved on the outer circumference of the first inner tube, the first flow channel is arranged on the first inner tube, and the second flow channel is arranged on the first outer tube; the second condenser includes a second inner tube and a second outer tube, the second outer tube is sleeved on the outer circumference of the second inner tube, the third flow channel is arranged on the second inner tube, and the fourth flow channel is arranged on the second outer tube.

[0013] Furthermore, the second inner tube and the second outer tube each include two straight tube sections and one curved tube section, the two straight tube sections are arranged in parallel and spaced apart, and the two straight tube sections are connected via the curved tube section and are interconnected.

[0014] Furthermore, a water tank is included, and the second interface is connected to the water tank and is used to guide the liquid to be discharged into the water tank.

[0015] Furthermore, it also includes a filter and a distributor, one end of the filter is connected to the fourth flow channel, the other end of the filter is connected to the distributor, and the other end of the distributor is connected to the inlet of the evaporator.

[0016] Furthermore, it also includes a throttle valve, one end of which is communicated with the filter, and the other end of which is communicated with the distributor.

[0017] Furthermore, a gas collecting pipe is connected to one side of the evaporator, one end of the gas collecting pipe is connected to the evaporator, and the other end of the gas collecting pipe is connected to the compressor.

[0018] Furthermore, it also includes a separator, which is communicated with the compressor and the air collecting pipe respectively.

[0019] Furthermore, the shell has an air outlet, and a fan is also installed in the installation cavity. The fan is located on one side of the evaporator and is used to guide the airflow in the installation cavity to be discharged through the air outlet.

[0020] To sum up, the evaporative heat pump provided by the utility model has the following technical effects: during specific use, the refrigerant in the compressor can be introduced into the second flow channel in the first condenser and exchange heat with the liquid in the first flow channel, and then the refrigerant in the first flow channel enters the fourth flow channel of the second condenser after the heat exchange. At this time, the condensed water in the water receiving part at the bottom of the evaporator is discharged to the third flow channel of the second condenser, and at the same time exchanges heat with the refrigerant in the fourth flow channel to cool the refrigerant in the fourth flow channel, so that the temperature of the refrigerant introduced into the evaporator through the fourth flow channel is lower, so as to make the refrigeration effect of the evaporator better. In this way, the condensed water in the water receiving part can be recycled and the refrigeration effect of the evaporator can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the internal structure diagram of the utility model;

[0022] Figure 2 It is the external diagram of the structure of the utility model;

[0023] Figure 3 It is a connection diagram of various components in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the first condenser in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the second condenser in the utility model.

[0026] The meanings of the reference numerals are as follows:

[0027] 10. Shell; 11. Installation cavity; 12. Fan; 13. Air outlet; 20. First condenser; 21. First flow channel; 211. First interface; 212. Second interface; 22. Second flow channel; 30. Second condenser; 31. Third flow channel; 311. Third interface; 312. Fourth interface; 32. Fourth flow channel; 40. Evaporator; 41. Water tray; 42. Gas collecting pipe; 50. Compressor; 60. Separator; 70. Distributor; 80. Filter; 90. Throttle valve. DETAILED DESCRIPTION

[0028] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figures 1 to 5The utility model discloses an evaporative heat pump, including a housing 10, an evaporator 40, a heat exchange component and a compressor 50. The housing 10 has an installation cavity 11. The evaporator 40 and the heat exchange component are both installed in the installation cavity 11. A water receiving part is also connected to the bottom of the evaporator 40. The heat exchange component includes a first condenser 20 and a second condenser 30. The first condenser 20 has a first flow channel 21 and a second flow channel 22. The first flow channel 21 has a first interface 211 and a second interface 212. The second flow channel 22 exchanges heat with the first flow channel 21, the second condenser 30 has a third flow channel 31 and a fourth flow channel 32, the third flow channel 31 has a third interface 311 and a fourth interface 312, the fourth interface 312 is connected to the water receiving part, and the third interface 311 is connected to the outside; one end of the fourth flow channel 32 is connected to the second flow channel 22, and the other end of the fourth flow channel 32 is connected to the evaporator 40, the fourth flow channel 32 exchanges heat with the third flow channel 31, and the compressor 50 is respectively connected to the second flow channel 22 and the evaporator 40.

[0032] On the basis of the above structure, when the air conditioner is cooling, the gaseous refrigerant in the compressor 50 needs to be liquefied when introduced into the second flow channel 22. At this time, cold water can be introduced through the first interface 211 of the first flow channel 21. Since the first flow channel 21 and the second flow channel 22 can exchange heat, and the gaseous refrigerant needs to release a large amount of heat during the liquefaction process, the gaseous refrigerant can exchange heat with the cold water in the first flow channel 21 after flowing into the second flow channel 22. Through heat exchange, the cold water can absorb the heat released by the gaseous refrigerant, thereby lowering its temperature. As the heat is transferred, the temperature of the gaseous refrigerant gradually decreases and gradually becomes a liquefied state, so as to accelerate the liquefaction process of the refrigerant in the second flow channel 22 through the cold water, and the cold water can be discharged through the second interface 212 for external use after becoming hot, so that energy is effectively utilized.

[0033] At the same time, the refrigerant medium liquefied after heat exchange in the second flow channel 22 flows into the fourth flow channel 32. Since the fourth flow channel 32 and the third flow channel 31 can exchange heat, after the third interface 311 of the third flow channel 31 is connected to the water receiving pan 41, the condensed water in the water receiving part can be recovered and discharged into the third flow channel 31, and exchange heat with the refrigerant medium in the fourth flow channel 32, so as to further cool the liquefied refrigerant medium in the fourth flow channel 32, so that the temperature of the refrigerant medium introduced into the evaporator 40 through the fourth flow channel 32 is lower, so as to make the refrigeration effect of the evaporator 40 better. In this way, the condensed water in the water receiving part can be recycled and reused, and at the same time, the refrigeration effect of the evaporator 40 is indirectly improved.

[0034] It should be noted that when the air conditioner is heating, the refrigerant discharged from the compressor 50 into the second flow channel 22 is in liquid form and needs to be vaporized. At this time, water at room temperature can be introduced into the first flow channel 21 through the first interface 211 as needed. Since the liquid refrigerant needs to absorb a large amount of heat during the vaporization process, a large amount of cold energy will be released in this process. In this way, the water in the first flow channel 21 can be cooled, and then the cooled water can be discharged through the second interface 212 for external use to avoid energy waste.

[0035] Specifically, the first condenser 20 and the second condenser 30 can both adopt heat exchange sleeves, fixed tube plate heat exchangers or floating head heat exchangers. When heat exchange sleeves are adopted, the flow channels inside the two sleeves are respectively formed as the first flow channel 21, the second flow channel 22 or the third flow channel 31 and the fourth flow channel 32; when a fixed tube plate heat exchanger or a floating head heat exchanger is adopted, the first flow channel 21 can be formed between the shell 10 and the heat exchange plate or the heat exchange fins, and the second flow channel 22 can be formed by mechanical cutting in the heat exchange plate or by setting a heat exchange tube in the plate, so that two flow channels are formed inside, and the third flow channel 31 and the fourth flow channel 32 are also arranged in this way.

[0036] In addition, the water receiving part for holding condensed water can be formed by a shell 10 that is set or covered on the outer periphery of the evaporator 40, and a water guide hole is set on the shell 10 to connect with the first interface 211; it can also be a water collecting pool or a water receiving tray 41 set at the bottom of the evaporator 40, and a water guide hole is set on the water collecting pool or the water receiving tray 41 to connect with the first interface 211, and the specific setting can be based on the actual usage scenario.

[0037] Preferably, the water receiving part in this embodiment is a water receiving pan 41. During the specific configuration, the bottom of the evaporator 40 can be installed in the water receiving pan 41, so that the condensed water generated at the periphery of the evaporator 40 can flow from top to bottom along the periphery of the evaporator 40 into the water receiving pan 41 at the bottom, and then be introduced into the first interface 211 through the water receiving pan 41 for secondary utilization.

[0038] The specific water receiving tray 41 can be a water receiving tray 41 with a guide groove. By setting the guide groove on the surface of the water receiving tray 41, the condensed water generated by the evaporator 40 can be concentrated in the guide groove and then discharged; or it can be a U-shaped water receiving tray 41, whose shape corresponds to the bottom of the evaporator 40, so that it can more effectively collect and guide the condensed water; of course, it can also be a flat or slightly inclined disc structure for directly receiving the condensed water dripping from the evaporator 40 or other condensation components.

[0039] Furthermore, the first condenser 20 and the second condenser 30 in this embodiment both adopt a shell-and-tube heat exchanger. Specifically, the first condenser 20 includes a first inner tube and a first outer tube, the first outer tube is sleeved on the outer periphery of the first inner tube, the first flow channel 21 is formed on the first inner tube, and the second flow channel 22 is formed on the first outer tube; the second condenser 30 includes a second inner tube and a second outer tube, the second outer tube is sleeved on the outer periphery of the second inner tube, specifically the third flow channel 31 is formed on the second inner tube, and the fourth flow channel 32 is formed on the second outer tube.

[0040] Based on the above structure, the first outer tube is sleeved outside the first inner tube and the second outer tube is sleeved on the outer periphery of the second inner tube. Multiple flow channels can be formed without complicated processing, and processing and installation are simpler. It is also convenient for maintenance and replacement of parts, which reduces the subsequent maintenance cost.

[0041] Furthermore, the second inner tube and the second outer tube each include two straight tube sections and one curved tube section. During assembly, the two straight tube sections are arranged in parallel and spaced apart, and then the two straight tube sections are connected and interconnected through the curved tube section. The above arrangement method is used to maximize the heat exchange area of ​​the second inner tube and the second outer tube. In this way, under the same heat exchange area, the second inner tube and the second outer tube flow path are made longer, which helps to improve and achieve higher heat transfer efficiency.

[0042] Furthermore, this embodiment further includes a water tank, which connects the second interface 212 to the water tank and is used to guide the liquid to be discharged into the water tank.

[0043] Specifically, after the liquid in the first flow channel 21 exchanges heat with the refrigerant medium in the second flow channel 22, it can be exported to the water tank through the second interface 212 to take away the heat or cold released by the refrigerant medium in the heat exchange process to the water tank for use in the external environment or centralized treatment, avoiding direct discharge to the external polluted environment, making it recyclable, saving energy, and being more environmentally friendly.

[0044] Furthermore, the evaporative heat pump also includes a filter 80 and a distributor 70 , one end of the filter 80 is connected to the fourth flow channel 32 , the other end of the filter 80 is connected to the distributor 70 , and the other end of the distributor 70 is connected to the inlet of the evaporator 40 .

[0045] Specifically, after the fourth flow channel 32 is connected to the filter 80, the refrigerant medium flowing in the fourth flow channel 32 can filter impurities in the refrigerant medium through the filter 80 after flowing through the filter 80, thereby ensuring that the refrigerant is cleaner when entering the distributor 70, and preventing impurities from flowing into the distributor 70 or the evaporator 40 and causing corrosion or blockage, thereby affecting the overall use of the equipment, thereby indirectly improving the service life of the entire equipment.

[0046] In addition, the filtered refrigerant medium can be evenly distributed to each branch of the evaporator 40 through the distributor 70, so as to ensure that each branch can obtain sufficient refrigerant, thereby improving the overall heat exchange efficiency of the evaporator 40 and avoiding local overheating or overcooling.

[0047] More specifically, a throttle valve 90 is also included. One end of the throttle valve 90 is connected to the filter 80, and the other end of the throttle valve 90 is connected to the distributor 70. The flow rate and pressure of the refrigerant are controlled by the throttle valve 90. If the refrigerant flow rate is too large or the pressure is too high, it may cause impact or damage to components such as the distributor 70, the evaporator 40 or the compressor 50. Therefore, setting the throttle valve 90 can limit the occurrence of these adverse factors and ensure the stable operation of the system.

[0048] Preferably, the throttle valve 90 can be an electronic expansion valve or a thermal expansion valve.

[0049] Furthermore, an air collecting pipe 42 is connected to one side of the evaporator 40 , one end of the air collecting pipe 42 is connected to the evaporator 40 , and the other end of the air collecting pipe 42 is connected to the compressor 50 .

[0050] Specifically, when the refrigerant enters the evaporator 40, it vaporizes in the evaporator 40, absorbs heat from the surrounding air, and lowers the air temperature. The refrigerant in the evaporator 40 vaporizes to form a low-temperature and low-pressure gas. At this time, these gases can be collected through the gas collecting pipe 42 and flow back to the compressor 50 to start the next cycle.

[0051] More specifically, it also includes a separator 60. When assembled, the separator 60 is arranged between the gas collecting pipe 42 and the compression element, and is respectively connected to the compressor 50 and the gas collecting pipe 42. In this way, the gasified refrigerant discharged through the gas collecting pipe 42 can first enter the separator 60 to separate the liquid substance in the gas, and then send the gaseous refrigerant to the compressor 50, thereby preventing the compressor 50 from sucking in the liquid refrigerant to damage the compressor 50, and protecting the compressor 50 from liquid hammer damage.

[0052] Preferably, the separator 60 in this embodiment is an existing gas-liquid separator 60 .

[0053] Furthermore, the housing 10 has an air outlet 13 , and a fan 12 is installed in the installation cavity 11 . Specifically, the fan 12 is located on one side of the evaporator 40 and is used to guide the airflow in the installation cavity 11 to be discharged through the air outlet 13 .

[0054] During specific assembly, the fan 12 can be arranged between the evaporator 40 and the air outlet 13, and the air outlet end of the fan 12 is connected to the air outlet 13 through an air duct, and the air inlet end is connected to the evaporator 40, so that when the fan 12 is running, the cold airflow or hot airflow generated by the evaporator 40 can be discharged to the outside of the installation cavity 11 through the air outlet 13 for use in the external environment.

[0055] Preferably, the fan 12 can be a centrifugal fan or an exhaust fan.

[0056] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An evaporative heat pump, characterized in that: include: A housing having a mounting cavity; An evaporator, the evaporator is installed in the installation cavity, and a water receiving member is connected to the bottom of the evaporator; A heat exchange component, the heat exchange component is installed in the installation cavity; the heat exchange component includes a first condenser and a second condenser, the first condenser has a first flow channel and a second flow channel, the first flow channel has a first interface and a second interface; the second flow channel exchanges heat with the first flow channel; The second condenser has a third flow channel and a fourth flow channel, the third flow channel has a third interface and a fourth interface, one end of the third interface is connected to the water receiving member, and the other end of the third interface is connected to the outside; one end of the fourth flow channel is connected to the second flow channel, and the other end of the fourth flow channel is connected to the evaporator, and the fourth flow channel exchanges heat with the third flow channel; A compressor is connected to the second flow channel and the evaporator respectively.

2. The evaporative heat pump according to claim 1, characterized in that: The water receiving member is a water receiving tray, and the water receiving tray is sleeved on the bottom of the evaporator.

3. The evaporative heat pump according to claim 1, characterized in that: The first condenser includes a first inner tube and a first outer tube, the first outer tube is sleeved on the outer circumference of the first inner tube, the first flow channel is arranged on the first inner tube, and the second flow channel is arranged on the first outer tube; the second condenser includes a second inner tube and a second outer tube, the second outer tube is sleeved on the outer circumference of the second inner tube, the third flow channel is arranged on the second inner tube, and the fourth flow channel is arranged on the second outer tube.

4. The evaporative heat pump according to claim 3, characterized in that: The second inner tube and the second outer tube each include two straight tube sections and one curved tube section. The two straight tube sections are arranged in parallel and spaced apart. The two straight tube sections are connected and interpenetrated via the curved tube section.

5. The evaporative heat pump according to claim 1, characterized in that: A water tank is also included, and the second interface is connected to the water tank and is used to guide the liquid to be discharged into the water tank.

6. The evaporative heat pump according to claim 1, characterized in that: It also includes a filter and a distributor, one end of the filter is communicated with the fourth flow channel, the other end of the filter is communicated with the distributor, and the other end of the distributor is connected to the inlet of the evaporator.

7. The evaporative heat pump according to claim 6, characterized in that: It also includes a throttle valve, one end of which is communicated with the filter, and the other end of which is communicated with the distributor.

8. The evaporative heat pump according to claim 2, characterized in that: One side of the evaporator is also connected to an air collecting pipe, one end of the air collecting pipe is communicated with the evaporator, and the other end of the air collecting pipe is communicated with the compressor.

9. The evaporative heat pump according to claim 8, characterized in that: It also includes a separator, which is communicated with the compressor and the air collecting pipe respectively.

10. The evaporative heat pump according to any one of claims 1 to 9, characterized in that: The shell has an air outlet, and a fan is also installed in the installation cavity. The fan is located on one side of the evaporator and is used to guide the airflow in the installation cavity to be discharged through the air outlet.

Images