Condensate water recycling assembly and cabinet air-conditioning system

Abstract

The utility model provides a condensate water recycling assembly and a cabinet air conditioner system. The condensate water recycling component comprises a first water receiving disc for receiving condensate water condensed from the surface of the evaporator; the water storage box is communicated with the water receiving trays, and the condensate water is guided out of the first water receiving tray to the water storage box; a condenser is arranged in the water storage box, and the condensate water exchanges heat with the condenser. Condensate water of the evaporator is received through the first water receiving disc and drained into the water storage box, contact type heat exchange cooling is conducted on the condenser in the water storage box, recycling of the condensate water is achieved, and energy is saved.

Description

Technical Field

[0001] The present application belongs to the technical field of cabinet air-conditioning systems, and specifically relates to a condensate recovery and utilization component and a cabinet air-conditioning system. Background Art

[0002] Energy conservation and carbon reduction have become the driving force behind most product development. Data centers are increasingly demanding cooling performance and energy efficiency requirements for air conditioning equipment. With the rapid development of the internet, network deployment requires more infrastructure, and the number of outdoor standalone base station cabinets has increased significantly. Improving the energy efficiency and energy-saving operation of cabinet air conditioners has become increasingly important.

[0003] During the operation of the cabinet air conditioner, since the surface temperature of the evaporator is often lower than the dew point temperature of the surrounding air, water vapor in the air will form condensation on its surface. When too much condensation is precipitated, it will drip down due to gravity. The existing method is to set a water receiving pan under the evaporator, and lead a drain pipe from the drain outlet of the water receiving pan to discharge the condensation water out of the unit. At this time, the temperature of the condensation water generated is generally close to the dew point temperature of the surrounding air. Direct discharge will cause a waste of cooling capacity and water resources. Utility Model Content

[0004] Therefore, the present application provides a condensate recovery and utilization component and a cabinet air-conditioning system, which can solve the problem in the prior art that the condensate of the cabinet air-conditioning is directly discharged, resulting in waste of cooling capacity and water resources.

[0005] In order to solve the above problems, the present application provides a condensed water recovery and utilization component, comprising:

[0006] The first water receiving tray receives the condensed water condensed on the surface of the evaporator;

[0007] A water storage box is connected to the water receiving tray, and the condensed water is led from the first water receiving tray to the water storage box; a condenser is provided in the water storage box, and the condensed water exchanges heat with the condenser.

[0008] In some embodiments,

[0009] An overflow port is provided on the side wall of the water storage box so that the lower part of the condenser is immersed in the condensed water in the water storage box.

[0010] In some embodiments,

[0011] The condensed water recycling component also includes a heat exchange element. The condensed water flowing out of the overflow port is at least partially dispersed on the surface of the heat exchange element, so that the condensed water and the air flowing through the surface of the heat exchange element undergo contact heat exchange.

[0012] In some embodiments,

[0013] The heat exchange element includes a membrane made of a water-absorbing material, and the condensed water penetrates into the membrane along the extension direction of the membrane.

[0014] According to another aspect of the present application, a cabinet air conditioning system is provided, including an evaporator and a condenser, and also including the condensed water recycling component as described above; the evaporator is arranged above the first water receiving tray, and the condenser is arranged in the water storage box.

[0015] In some embodiments,

[0016] The cabinet air conditioning system also includes an external air duct, and the condenser is arranged in the external air duct; when the condensed water recovery and utilization component includes a heat exchange element, the heat exchange element is arranged in the external air duct and upstream of the condenser.

[0017] In some embodiments,

[0018] The cabinet air conditioning system further includes a compressor located in the external air duct, and the heat exchange element is arranged on the outer wall surface of the compressor.

[0019] In some embodiments,

[0020] When the heat exchange member is formed as a water-absorbing material film, the film covers the outer peripheral surface of the compressor.

[0021] In some embodiments,

[0022] The external air duct includes an external fan arranged at an inlet thereof, and the external fan includes a centrifugal fan.

[0023] In some embodiments,

[0024] A second water receiving tray with a drain port is provided at the bottom of the compressor, and / or a drain pipe is connected to the bottom of the water storage box, and a control valve is provided on the drain pipe.

[0025] The present application provides a condensed water recycling component, comprising: a first water receiving pan for receiving the condensed water condensed from the surface of the evaporator; a water storage box connected to the water receiving pan, and the condensed water is directed from the first water receiving pan to the water storage box; a condenser is provided in the water storage box, and the condensed water exchanges heat with the condenser.

[0026] This application has the following beneficial effects:

[0027] The condensed water of the evaporator is received by the first water receiving pan and drained into the water storage box, and the condenser in the water storage box is cooled by contact heat exchange, thereby realizing the reuse of the condensed water and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0029] Figure 1 This is a schematic structural diagram of the cabinet air conditioning system according to an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the airflow direction of the cabinet air conditioning system according to an embodiment of the present application;

[0031] Figure 3 This is a control flow chart of the cabinet air conditioning system according to an embodiment of the present application.

[0032] The reference numerals indicate:

[0033] 1. Evaporator; 2. First water tray; 3. Internal fan; 4. Middle partition; 5. Condenser;

[0034] 6. Water storage box; 61. Drain pipe; 62. Overflow port;

[0035] 7. Centrifugal fan; 8. Compressor; 9. Heat exchange element; 10. Second water tray. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0040] See also Figures 1 to 3 As shown, according to an embodiment of the present application, a condensed water recovery and utilization component includes:

[0041] The first water receiving tray 2 receives the condensed water condensed on the surface of the evaporator 1;

[0042] The water storage box 6 is connected to the water receiving tray, and the condensed water is led from the first water receiving tray 2 to the water storage box 6; a condenser 5 is provided in the water storage box 6, and the condensed water exchanges heat with the condenser 5.

[0043] The present application receives the condensed water of the evaporator 1 through the first water receiving tray 2 and drains it into the water storage box 6, performs contact heat exchange and cooling on the condenser 5 in the water storage box 6, realizes the reuse of the condensed water, and saves energy.

[0044] The present application collects condensed water through the first water receiving tray 2, which is mainly used to receive the condensed water precipitated from the evaporator 1 and make further use of the condensed water; since most of the condensed water is precipitated from the surface of the evaporator 1, the temperature of the condensed water is relatively low, and the condensed water is drained into the water storage box 6. Since the condenser 5 is provided in the water storage box 6, the condenser 5 itself is in a high-temperature state and needs to dissipate heat, the condensed water introduced into the water storage box 6 can be used as a cooling medium to perform water-cooling cooling treatment on the condenser 5 partially immersed in the condensed water.

[0045] The first water receiving tray 2 and the water storage box 6 can be connected by a pipe; wherein, the first water receiving tray 2 can be set higher than the water storage box 6, so that the condensed water will flow from the first water receiving tray 2 into the water storage box 6 through the pipe in a gravity flow manner, which can reduce driving equipment such as water pumps, as well as reduce noise and corresponding costs.

[0046] The condensed water in the water storage box 6 can contact a portion of the condenser 5, especially since the condenser 5 fins are metal fins with good heat transfer performance. In this way, the cooling capacity of the condensed water can be fully utilized, which plays an auxiliary and accelerated role in cooling the condenser 5. The portion of the condenser 5 is mainly the lower part of the condenser 5, which is immersed in the condensed water in the water storage box 6.

[0047] In some embodiments,

[0048] An overflow port 62 is provided on the side wall of the water storage box 6 so that the lower portion of the condenser 5 is immersed in the condensed water in the water storage box 6 .

[0049] In order to ensure that the condensed water in the water storage box 6 has a certain depth so that the condensed water can exchange heat with the lower surface of the condenser 5 in a water-cooled manner, an overflow port 62 is provided on the side wall of the water storage box 6. Only condensed water with a water level higher than the overflow port 62 can flow out of the water storage box 6.

[0050] In some embodiments,

[0051] The condensed water recycling component also includes a heat exchanger 9. The condensed water flowing out of the overflow port 62 is at least partially dispersed on the surface of the heat exchanger 9, so that the condensed water and the air flowing through the surface of the heat exchanger 9 are in contact with each other for heat exchange.

[0052] The present application further utilizes the condensed water overflowing from the water storage box 6, dispersing the overflowed condensed water on the surface of the heat exchange element 9, thereby expanding the heat exchange area of ​​the condensed water. In this way, when the air flows through the heat exchange element 9, the condensed water and the air perform contact heat exchange, mainly utilizing the evaporation of the condensed water to cool the surrounding air.

[0053] Since the condensed water overflows the water storage box 6 and is dispersed on the surface of the heat exchange element 9, the heat exchange element 9 is positioned lower than the water storage box 6 or the condenser 5. This can guide the air cooled by the overflowing condensed water to flow to the condenser 5, thereby further improving the heat dissipation effect of the condenser 5.

[0054] In some embodiments,

[0055] The heat exchange element 9 includes a membrane made of a water-absorbing material, and the condensed water penetrates into the membrane along the extension direction of the membrane.

[0056] Heat exchange element 9 utilizes a membrane made of a water-absorbing material. The membrane's thinness allows it to take up little space, thus minimizing the size of the device. The membrane structure also offers the advantage of a large heat dissipation area, further increasing the evaporation area for the condensed water and improving the evaporation efficiency. Furthermore, the water-absorbing material allows the membrane to retain the condensed water, ensuring a sufficient evaporation area for the condensed water.

[0057] For absorbent materials, cotton cloth can be used, which is woven with cotton threads and can hold water while having a large surface area.

[0058] According to another aspect of the present application, a cabinet air-conditioning system is provided, including an evaporator 1 and a condenser 5, and also including the condensed water recycling component as described above; the evaporator 1 is arranged above the first water receiving tray 2, and the condenser 5 is arranged in the water storage box 6.

[0059] A traditional cabinet air-conditioning system usually includes an evaporator 1 and a condenser 5, and the two are separated by a partition in two chambers, and the two chambers circulate with indoor and outdoor air respectively; in this application, the evaporator 1 is arranged above the first water receiving tray 2 of the condensed water recovery component, and the condensed water precipitated by the evaporator 1 is collected by the first water receiving tray 2, and the condenser 5 is arranged in the water storage box 6. In this way, the condensed water in the first water receiving tray 2 flows into the water storage box 6, which can achieve the purpose of cooling the condenser 5 and reusing it.

[0060] In some embodiments,

[0061] The cabinet air conditioning system also includes an external air duct, and the condenser 5 is arranged in the external air duct; when the condensed water recovery component includes a heat exchanger 9, the heat exchanger 9 is arranged in the external air duct and upstream of the condenser 5.

[0062] The external air duct of the cabinet air-conditioning system refers to the passage for circulation with outdoor air, that is, the outdoor air enters the cabinet air-conditioning system, cools the condenser 5 and then flows out of the entire flow path of the cabinet air-conditioning system; a heat exchange element 9 is arranged in the external air duct, and the heat exchange element 9 is upstream of the condenser 5, so that the air entering from the outside can first exchange heat with the heat exchange element 9, and then exchange heat with the condenser 5; this structural setting ensures that after the outdoor hot air is cooled by the heat exchange element 9, the heat dissipation effect of the condenser 5 can be more effectively reduced, thereby improving the energy efficiency of the air-conditioning system.

[0063] In some embodiments,

[0064] The cabinet air conditioning system further includes a compressor 8 located in the external air duct, and the heat exchange element 9 is provided on the outer wall surface of the compressor 8 .

[0065] When a cabinet air conditioning system includes a compressor 8, the compressor 8 is also typically located in the external air duct. In this case, the heat exchanger 9 is located on the outer wall of the compressor 8. This allows the heat exchanger 9 to exchange heat with the compressor 8 itself, reducing the cylinder temperature of the compressor 8, thereby reducing the power consumption of the compressor 8 and improving energy efficiency. Furthermore, the compressor 8 is typically located at the bottom of the cabinet air conditioning system, allowing the heat exchanger 9 to conveniently receive the condensed water flowing freely.

[0066] In some embodiments,

[0067] When the heat exchange member 9 is formed of a water-absorbing film, the film covers the outer peripheral surface of the compressor 8 .

[0068] When the heat exchange element 9 is made of a water-absorbing material film, it is installed on the compressor 8 by covering the outer peripheral surface of the compressor 8. It will not increase the volume of the equipment, but can also dissipate heat from the entire compressor 8 shell. The corresponding heat exchange area between itself and the air is also increased, thereby improving the heat exchange effect.

[0069] In some embodiments,

[0070] The external air duct includes an external fan provided at an inlet thereof, and the external fan includes a centrifugal fan 7 .

[0071] The external fan adopts a centrifugal fan 7 to prevent the outdoor air from blowing directly on the membrane on the outer wall of the compressor 8 and bringing out water mist. Under the erosion of water mist for a long time, the internal sheet metal parts are prone to rust and damage. Therefore, the centrifugal fan 7 is used to optimize the airflow organization to prevent the outdoor air from blowing directly and bringing out water mist.

[0072] In some embodiments,

[0073] The bottom of the compressor 8 is provided with a second water receiving tray 10 with a drain port, and / or the bottom of the water storage box 6 is connected to a drain pipe 61 , and the drain pipe 61 is provided with a control valve.

[0074] If the amount of condensed water is too large, a second water receiving tray 10 with a drain outlet is provided at the bottom of the compressor 8, which can effectively solve the drainage problem inside the cabinet air-conditioning system. The drain outlet of the second water receiving tray 10 can be connected to the water outlet of the whole machine.

[0075] In addition, a drain pipe 61 is provided at the bottom of the water storage box 6 to drain the water in the water storage box 6 to prevent the condenser 5 from always being in condensed water when the air-conditioning system is not working; this is achieved by switching the control valve on the drain pipe 61, where the control valve can be a solenoid valve.

[0076] The specific structure of the cabinet air conditioning system and its flow and circulation status can be found in Figure 1 and 2As shown, the middle partition 4 divides the interior of the cabinet air-conditioning system into inner and outer cavities. The inner side blows out cold air through the evaporator 1, and the outer side blows out hot air through the condenser 5. The inner side is embedded in the cabinet to cool the cabinet, and the outer side is exposed to the outside of the cabinet to realize outdoor circulation.

[0077] The air supply method diagram only shows one indoor and outdoor air supply method. The other indoor and outdoor upper air supply, side air supply, and lower air supply methods can all be used as examples of this implementation method.

[0078] The interior of the cabinet air conditioning system consists of an internal fan 3, an evaporator 1, and a first water tray 2. The exterior consists of a compressor 8, a membrane, a second water tray 10, a condenser 5, a water storage box 6, a solenoid valve, and an external fan. Below the evaporator 1 is a first water tray 2, which is connected to the water storage box 6 below the condenser 5. A water outlet pipe is connected to the water storage box 6 below, with an overflow port 62 on the side. A solenoid valve is installed on the lower water outlet pipe to control the flow of water. The overflow port 62 is connected to a water-absorbing membrane attached to the outer surface of the compressor 8. Below the membrane is a second water tray 10, which is connected to the water outlet below the unit to drain excess condensate from the unit.

[0079] The working process of the cabinet air-conditioning system of the present application is that when the unit starts working, condensation water will form on the surface of the evaporator 1, and the condensation water will drip into the first water receiving tray 2 due to the action of gravity. The condensation water is led to the water storage box 6 through the pipe below the first water receiving tray 2. At this time, the temperature of the condensation water is close to the dew point temperature of the surrounding air, which can achieve the conditions for heat exchange with the outdoor side.

[0080] The water storage box 6 is connected to the water outlet pipe below, and a solenoid valve is provided inside the water outlet pipe; there is an overflow port 62 on the side; when the compressor 8 is working normally, the solenoid valve is in a closed state, and condensation water is continuously generated and accumulated to a certain level, it will flow out from the overflow port 62 on the side. The condensed water flowing out of the overflow port 62 is guided through the pipeline to the membrane attached to the surface of the compressor 8. When the outdoor air enters the unit, it can exchange heat with the condensation water in the membrane. By lowering the outdoor return air temperature, the condensation temperature is further lowered, the subcooling temperature of the condenser 5 can be reduced, the subcooling degree can be increased, and the energy efficiency of the system can be increased; the membrane can also exchange heat with the compressor 8 itself, reduce the cylinder temperature of the compressor 8, reduce the operating load of the compressor 8 motor, and thus reduce the operating power of the compressor 8 to improve the energy efficiency of the system.

[0081] The external fan adopts a centrifugal fan to prevent the outdoor return air from blowing directly on the membrane and bringing out water mist. Under the erosion of water mist for a long time, the internal sheet metal parts are prone to rust and damage. Therefore, a centrifugal fan 7 is used to optimize the airflow organization to prevent the outdoor return air from blowing directly and bringing out water mist.

[0082] The solenoid valve is initially closed. After compressor 8 starts running for 3 minutes, the temperature of water storage box 6 is detected. If the detected temperature is >2°C, the solenoid valve remains closed. If the detected temperature is ≤2°C, the signal from compressor 8 is detected. If compressor 8 is on, the solenoid valve remains closed. If compressor 8 is off, the solenoid valve opens to drain condensate from water storage box 6. The condensate is then discharged from the unit through drain pipe 61. To prevent incomplete condensate drainage, the bottom of water storage box 6 and second water receiving tray 10 are designed with a slope of 15° from the horizontal to ensure complete drainage of condensate.

[0083] The solenoid valve is a normally closed solenoid valve when de-energized. Since the condensation water temperature is typically greater than 2°C, this type of valve is used. This allows the valve to remain in a normally closed state when de-energized, achieving greater energy savings and extending its service life. Those skilled in the art will readily appreciate that the aforementioned embodiments may be freely combined and superimposed, provided they do not conflict.

[0084] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above description is merely a preferred embodiment of the present application. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A condensate water recycling component, characterized in that: include: A first water receiving tray (2) receives condensed water condensed from the surface of the evaporator (1); A water storage box (6) is connected to the water receiving tray, and the condensed water is led from the first water receiving tray (2) to the water storage box (6); a condenser (5) is provided in the water storage box (6), and the condensed water exchanges heat with the condenser (5); An overflow port (62) is provided on the side wall of the water storage box (6); The condensed water recycling component also includes a heat exchange element (9), and the condensed water flowing out of the overflow port (62) is at least partially dispersed on the surface of the heat exchange element (9), so that the condensed water and the air flowing through the surface of the heat exchange element (9) perform contact heat exchange.

2. The condensed water recycling assembly according to claim 1, characterized in that: The heat exchange element (9) comprises a membrane made of a water-absorbing material, and the condensed water penetrates into the membrane along the extension direction of the membrane.

3. A cabinet air conditioning system, comprising an evaporator (1) and a condenser (5), characterized in that: It also includes a condensed water recycling component as described in any one of claims 1 to 2; the evaporator (1) is arranged above the first water receiving tray (2), and the condenser (5) is arranged in the water storage box (6).

4. The cabinet air conditioning system according to claim 3, characterized in that: The cabinet air conditioning system also includes an external air duct, and the condenser (5) is arranged in the external air duct; when the condensed water recovery component includes a heat exchange element (9), the heat exchange element (9) is arranged in the external air duct and is upstream of the condenser (5).

5. The cabinet air conditioning system according to claim 4, characterized in that: The cabinet air conditioning system further includes a compressor (8) located in the external air duct, and the heat exchange element (9) is arranged on the outer wall surface of the compressor (8).

6. The cabinet air conditioning system according to claim 5, characterized in that: When the heat exchange element (9) is configured as a water-absorbing material film, the film covers the outer peripheral surface of the compressor (8).

7. The cabinet air conditioning system according to any one of claims 4 to 6, characterized in that: The external air duct includes an external fan arranged at an inlet thereof, and the external fan includes a centrifugal fan (7).

8. The cabinet air conditioning system according to claim 5 or 6, characterized in that: A second water receiving tray (10) with a drain port is provided at the bottom of the compressor (8), and / or a drain pipe (61) is connected to the bottom of the water storage box (6), and a control valve is provided on the drain pipe (61).

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