Refrigeration equipment

Abstract

The present invention discloses a refrigeration device, and relates to the technical field of air conditioning. The refrigeration device specifically includes a closed evaporator, a water connection and drainage structure for the closed evaporator, the water connection and drainage structure including a partition that divides the inner cavity of the closed evaporator into a closed heat exchange area and at least one non-heat exchange area close to a heat source, a water connection piece arranged at the bottom of the heat exchange area and the non-heat exchange area, a spray component that guides the condensed water on the water connection piece in the heat exchange area to the non-heat exchange area for heat exchange, and a drainage component that is arranged on the water connection piece in the non-heat exchange area to discharge the condensed water therein. The purpose is to achieve drainage of the closed evaporator while avoiding the loss of cooling capacity of the evaporator.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a water connection and drainage structure and a refrigeration device. Background Art

[0002] Aircraft ground air conditioners are used as a unit to replace the aircraft APU (auxiliary power unit) fuel refrigeration, and deliver cooling or heating to aircraft parked on the apron. Since civil aviation standards require the air outlet temperature to be lower than 2°C, a large amount of condensed water needs to be discharged from the evaporator when the unit is running for cooling in summer. In addition, the static pressure of the unit is above 5500Pa. If the condensed water is directly discharged under the evaporator, on the one hand, it will cause serious air leakage, reduce the air volume and affect the performance; on the other hand, there is a "cold leakage" problem with the cold water and cold air flowing out of the air duct, which reduces the performance of the whole machine.

[0003] The conventional method is to seal with a U-tube, but this method cannot solve the problem of cold water being discharged with the condensed water. Since the condenser is close to the U-tube at the side of the evaporator, even if a partition is installed, both ends of the evaporator will still be affected by the hot air from the condenser, and part of the cold water will be neutralized. Summary of the invention

[0004] The main purpose of the present invention is to provide a drainage structure and a refrigeration device, aiming to achieve drainage of a closed evaporator while avoiding the loss of cooling capacity of the evaporator.

[0005] In order to achieve the above-mentioned objectives, the present invention proposes a water receiving and drainage structure for a closed evaporator, comprising a partition that divides the inner cavity of the closed evaporator into a heat exchange zone and at least one non-heat exchange zone, water receiving parts respectively arranged at the bottom of the heat exchange zone and the non-heat exchange zone, a spray component that guides condensed water on the water receiving part of the heat exchange zone to the non-heat exchange zone for heat exchange, and a drainage component that is arranged on the water receiving part of the non-heat exchange zone to discharge the condensed water therein.

[0006] In one embodiment of the present application, there are two partitions, and the two partitions divide the inner cavity of the closed evaporator into two non-heat exchange areas and one heat exchange area, and the two non-heat exchange areas are located on both sides of the heat exchange area.

[0007] In one embodiment of the present application, the spray assembly includes a pipe body whose water inlet is connected to the water receiving part in the heat exchange area and the water outlet is located in the non-heat exchange area. The pipe body is provided with a water pump for pumping out condensed water on the water receiving part in the heat exchange area.

[0008] In one embodiment of the present application, the water outlet of the pipe body faces the side of the non-heat exchange area close to the heat source.

[0009] In one embodiment of the present application, the spray assembly further includes a spray head disposed on the water outlet for atomizing the pumped condensed water.

[0010] In one embodiment of the present application, a liquid level detection component is provided on the water receiving component of the non-heat exchange zone, and a first solenoid valve for opening or closing the tube body according to a detection result of the liquid level detection component is provided on the tube body.

[0011] In one embodiment of the present application, there are two spray assemblies, the water inlets of the two spray assemblies are connected to the water receiving piece in the heat exchange zone, and the water outlets of the two spray assemblies are respectively located in two non-heat exchange zones.

[0012] In one embodiment of the present application, a second liquid level detection component is provided on the water receiving parts of the two non-heat exchange areas; the drainage assembly includes a drain pipe, and the drain pipe is provided with a second solenoid valve that is opened or closed according to the detection result of the second liquid level detection component.

[0013] In one embodiment of the present application, the tube body is U-shaped, and the water outlet of the U-shaped tube body is located at the top of the non-heat exchange area.

[0014] The present application also discloses a refrigeration device, comprising a water connection and drainage structure as described in any one of the above.

[0015] In one embodiment of the present application, the refrigeration equipment includes an aircraft ground air conditioner.

[0016] By adopting the above technical solution, the inner cavity of the closed evaporator is divided into a heat exchange area and a non-heat exchange area by a separator. The isolation and buffering of the non-heat exchange area prevents the cold air in the heat exchange area from directly exchanging heat with the outside, thereby avoiding the loss of cold air in the closed evaporator. At the same time, the condensed water in the heat exchange area is sprayed into the non-heat exchange area, thereby further reducing the loss of cold air in the non-heat exchange area. The condensed water on the water receiving part of the heat exchange area is introduced into the non-heat exchange area by the spraying component, thereby realizing the extraction of the condensed water in the heat exchange area. The structure is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.

[0020] like Figure 1As shown, in order to achieve the above-mentioned purpose, the present invention proposes a water receiving and drainage structure for a closed evaporator, including a partition 10 that divides the inner cavity of the closed evaporator into a heat exchange area 110 and at least one non-heat exchange area 40, a water receiving piece 100 respectively arranged at the bottom of the heat exchange area 110 and the non-heat exchange area 40, a spray component that guides condensed water on the water receiving piece 100 of the heat exchange area 110 to the non-heat exchange area 40 for heat exchange, and a drainage component that is arranged on the water receiving piece 100 of the non-heat exchange area 40 to discharge the condensed water therein.

[0021] Specifically, a water receiving and drainage structure includes a partition 10, a water receiving member 100, a spray assembly, and a drainage assembly.

[0022] The closed evaporator includes an evaporator body and a shell 120 covering the evaporator body. The evaporator body is a commonly used evaporator body in the prior art, so it is not described in detail.

[0023] The shell 120 covering the evaporator body is made of metal material. The shell 120 made of metal material has the advantages of strong support ability and wear resistance. Of course, according to the design requirements, the shell 120 can also be made of other materials, such as plastic material. The shell 120 made of plastic material has the advantages of light weight, low cost, and easy production.

[0024] The partition assembly is located inside the shell 120, and divides the inside of the shell 120 into a heat exchange area 110 and at least one non-heat exchange area 40. The evaporator body is located inside the heat exchange area 110, and it is conceivable that the evaporator body can be partially located in the non-heat exchange area 40 to reduce the temperature in the non-heat exchange area 40.

[0025] A water receiving part 100 is provided at the bottom of the heat exchange area 110 and the non-heat exchange area 40. The water receiving part 100 described in the present application is a water receiving pan. The highest water level of the water receiving pan is lower than the lowest position of the evaporator body, thereby ensuring that the condensed water in the water receiving pan will not flood the evaporator body, thereby ensuring the heat exchange effect of the evaporator.

[0026] The spray assembly is used to guide the condensed water on the water receiving member 100 of the heat exchange area 110 into the non-heat exchange area 40 and perform heat exchange in the non-heat exchange area 40 , thereby reducing the temperature in the non-heat exchange area 40 .

[0027] A drain assembly is provided on the water receiving member 100 of the non-heat exchange area 40 , and the drain assembly is used to drain the condensed water on the water receiving member 100 of the non-heat exchange area 40 .

[0028] By adopting the above technical solution, the inner cavity of the closed evaporator is divided into a heat exchange area 110 and a non-heat exchange area 40 by a partition 10. The isolation and buffering of the non-heat exchange area 40 prevents the cold air in the heat exchange area 110 from directly exchanging heat with the outside, thereby avoiding the loss of cold capacity of the closed evaporator. At the same time, the condensed water in the heat exchange area 110 is sprayed into the non-heat exchange area 40, thereby further reducing the loss of cold capacity in the non-heat exchange area 40. The condensed water on the water receiving part 100 of the heat exchange area 110 is introduced into the non-heat exchange area 40 by a spraying component, thereby realizing the extraction of the condensed water in the heat exchange area 110. The structure is simple and easy to implement.

[0029] In one embodiment of the present application, there are two partitions 10 , which divide the inner cavity of the closed evaporator into two non-heat exchange areas 40 and one heat exchange area 110 . The two non-heat exchange areas 40 are located on both sides of the heat exchange area 110 .

[0030] Specifically, there are two partitions 10, which are sealing plates. The two partitions 10 divide the inner cavity of the closed evaporator into two non-heat exchange areas 40 and one heat exchange area 110, and the two non-heat exchange areas 40 are located on both sides of the heat exchange area 110. Since the non-heat exchange areas 40 are arranged on both sides of the heat exchange area 110, the loss of cooling capacity in the heat exchange area 110 is further avoided through the buffering of the non-heat exchange areas 40.

[0031] The above technical solution has a simple structure and is easy to implement, and can further avoid the loss of cooling capacity in the heat exchange area 110.

[0032] In one embodiment of the present application, the spray assembly includes a pipe body 90 whose water inlet is connected to the water receiving piece 100 of the heat exchange area 110 and whose water outlet is located in the non-heat exchange area 40. The pipe body 90 is provided with a water pump 80 for pumping out condensed water on the water receiving piece 100 in the heat exchange area 110.

[0033] Specifically, the spray assembly includes a pipe body 90 and a water pump 80 disposed on the pipe body 90 .

[0034] Among them, the water inlet of the tube body 90 is connected to the water receiving piece 100 of the heat exchange area 110. The water inlet of the tube body 90 and the water receiving piece 100 of the heat exchange area 110 are connected in a detachable manner, such as threaded connection, clamping, etc. The detachable connection facilitates the installation and disassembly between the tube body 90 and the water receiving piece 100, and facilitates later maintenance. Of course, according to the design requirements, the water inlet of the tube body 90 and the water receiving piece 100 of the heat exchange area 110 can also be connected in a fixed connection manner, and the fixed connection can improve the connection strength between the water inlet of the tube body 90 and the water receiving piece 100 of the heat exchange area 110.

[0035] The water inlet of the tube body 90 can be connected to the side wall of the water receiving member 100, or can be connected to the bottom of the water receiving member 100. In order to facilitate the introduction of condensed water on the water receiving member 100 of the heat exchange area 110 into the non-heat exchange area 40, the water inlet of the tube body 90 is preferably connected to the bottom of the water receiving member 100 of the heat exchange area 110.

[0036] The water outlet of the pipe body 90 is arranged in the non-heat exchange area 40. The water pump 80 adopts the water pump 80 commonly used in the prior art, which is not limited here. The water pump 80 is used to pump the condensed water on the water receiving part 100 in the heat exchange area 110.

[0037] Out to the non-heat exchange zone 40.

[0038] The above technical solution has a simple structure and is easy to implement.

[0039] In one embodiment of the present application, the water outlet of the tube body 90 faces the side of the non-heat exchange area 40 close to the heat source 30 .

[0040] Specifically, the water outlet of the tube body 90 faces the side of the non-heat exchange area 40 close to the heat source 30, thereby improving the heat exchange efficiency between the condensed water in the tube body 90 and the external heat source 30, thereby indirectly reducing the cold loss in the heat exchange area 110.

[0041] The adoption of the above technical solution further reduces the cooling loss in the heat exchange area 110.

[0042] In one embodiment of the present application, the spray assembly further includes a spray head 20 disposed on the water outlet for atomizing the pumped condensed water.

[0043] Specifically, the spray assembly further includes a spray head 20, which is disposed on the water outlet, and atomizes the condensed water in the tube body 90, thereby increasing the heat exchange area of ​​the condensed water and improving the heat exchange efficiency between the condensed water and the non-heat exchange area 40. Thus, the cooling loss in the heat exchange area 110 is indirectly avoided.

[0044] The above technical solution has a simple structure and further reduces the cooling loss in the heat exchange area 110.

[0045] In one embodiment of the present application, a liquid level detection component 50 is provided on the water receiving component 100 of the non-heat exchange area 40 , and a first solenoid valve 70 is provided on the tube body 90 for opening or closing the tube body 90 according to the detection result of the liquid level detection component 50 .

[0046] Specifically, a liquid level detection component 50 is provided on the water receiving component 100 of the non-heat exchange area 40 . The liquid level detection component 50 is a commonly used liquid level detection component 50 in the prior art and is not limited here.

[0047] A first electromagnetic valve 70 is provided on the tube body 90. The matching relationship between the first electromagnetic valve 70 and the liquid level detection member 50 is:

[0048] The highest water level and the lowest water level are preset on the liquid level detection member 50. The highest water level detected is lower than the maximum height of the water receiving member 100. In order to achieve sealing, the lowest water level is greater than the lowest water level of the water receiving member 100.

[0049] When the liquid level detection member 50 detects that the water level on the water receiving member 100 is greater than the highest preset water level, the first electromagnetic valve 70 is closed to prevent the condensed water from overflowing the water receiving member 100. At this time, the liquid is drained through the drain assembly.

[0050] By adopting the above technical solution, the liquid level detection member 50 and the first solenoid valve 70 cooperate with each other to avoid overflow of condensed water, thereby improving the safety and stability of the water connection and drainage structure.

[0051] In one embodiment of the present application, there are two spray assemblies, the water inlets of the two spray assemblies are connected to the water receiving piece 100 of the heat exchange area 110, and the water outlets of the two spray assemblies are respectively located in two non-heat exchange areas 40.

[0052] Specifically, there are two spray assemblies, the water inlets of the two spray assemblies are connected to the water receiving piece 100 of the heat exchange zone 110, and the water outlets of the two spray assemblies are respectively located in the two non-heat exchange zones 40, thereby realizing heat exchange of condensed water in the heat exchange zone 110 in the two non-heat exchange zones 40, further reducing the cold loss in the heat exchange zone 110.

[0053] In an embodiment of the present application, the drainage assembly includes a drainage pipe 60 , and the drainage pipe 60 is provided with a second solenoid valve that is opened or closed according to the detection result of the liquid level detection component 50 .

[0054] Specifically, the drainage assembly includes a drainage pipe 60, on which a second electromagnetic valve is provided. When the liquid level detection component 50 detects that the liquid level on the water receiving component 100 of the non-heat exchange area 40 is lower than a preset minimum value, the second electromagnetic valve is closed, thereby avoiding the loss of cooling capacity.

[0055] In one embodiment of the present application, the tube body 90 is U-shaped, and the water outlet of the U-shaped tube body 90 is located at the top of the non-heat exchange area 40 .

[0056] Specifically, the tube body 90 is U-shaped, and the U-shaped tube body 90 can seal the heat exchange area 110 to avoid the loss of cold in the heat exchange area 110 .

[0057] The present application also discloses a refrigeration device, comprising a water connection and drainage structure as described in any one of the above.

[0058] In one embodiment of the present application, the refrigeration equipment includes an aircraft ground air conditioner.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A refrigeration device, comprising a closed evaporator, characterized in that: It also includes a water receiving and drainage structure for a closed evaporator, the water receiving and drainage structure including a partition that divides the inner cavity of the closed evaporator into a closed heat exchange area and at least one non-heat exchange area close to a heat source, water receiving parts respectively arranged at the bottom of the heat exchange area and the non-heat exchange area, a spray component that guides condensed water on the water receiving part of the heat exchange area to the non-heat exchange area for heat exchange, and a drainage component arranged on the water receiving part of the non-heat exchange area to discharge the condensed water therein; There are two partitions, and the two partitions divide the inner cavity of the closed evaporator into two non-heat exchange areas and one heat exchange area, and the two non-heat exchange areas are located on both sides of the heat exchange area; The spray assembly includes a pipe body with a water inlet connected to the water receiving piece in the heat exchange area and a water outlet located in the non-heat exchange area. The pipe body is provided with a water pump for pumping out condensed water on the water receiving piece in the heat exchange area; the water outlet of the pipe body faces the side of the non-heat exchange area close to the heat source.

2. The refrigeration device according to claim 1, characterized in that: The spray assembly also includes a spray head disposed on the water outlet for atomizing the pumped condensed water.

3. The refrigeration device according to claim 1, characterized in that: The water receiving part of the non-heat exchange zone is provided with a liquid level detection part, and the pipe body is provided with a first electromagnetic valve that opens or closes the pipe body according to the detection result of the liquid level detection part.

4. The refrigeration device according to claim 3, characterized in that: The liquid discharge assembly comprises a drain pipe, and a second solenoid valve is provided on the drain pipe and is opened or closed according to the detection result of the liquid level detection component.

5. The refrigeration device according to claim 1, characterized in that: There are two spray assemblies, the water inlets of the two spray assemblies are connected to the water receiving piece in the heat exchange zone, and the water outlets of the two spray assemblies are respectively located in two non-heat exchange zones.

6. The refrigeration device according to claim 1, characterized in that: The tube body is U-shaped, and the water outlet of the U-shaped tube body is located at the top of the non-heat exchange area.

7. The refrigeration device according to any one of claims 1 to 6, characterized in that: The refrigeration equipment includes an aircraft ground air conditioner.

Images