Condensate water recycling assembly, cabinet air conditioner and control method of cabinet air conditioner

Abstract

The invention provides a condensate water recycling assembly, a cabinet air conditioner and a control method of the cabinet air conditioner. The condensate water recycling assembly comprises a water pan arranged below the evaporator; the water pan is used for receiving condensed water separated out from the surface of the evaporator; the water storage box is arranged below the condenser; the water storage box is communicated with the water pan through a pipeline, and the condensate water flows into the water storage box through the pipeline; the spraying device comprises a water pump and a nozzle, an inlet of the water pump is communicated with the water storage box, and an outlet of the water pump is communicated with the nozzle; the water pump is provided with a transmission mechanism which is coaxially connected with the water pump, and the transmission mechanism drives the spray head to movably spray the condensate water to the condenser. According to the air conditioner system, the condensed water separated out by condensation of the evaporator is guided into the water storage box below the condenser, the condensed water in the water storage box is evenly sprayed to the condenser in combination with the spraying device, the condenser is cooled in a direct evaporation cooling mode, the condensed water is utilized, and the energy efficiency of the air conditioner system is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of cabinet air conditioners, and specifically relates to a condensate recovery and utilization component, a cabinet air conditioner and a control method thereof. Background Art

[0002] During the air cooling process, the air conditioner cold source heat exchanger exchanges heat with the air. When the surface temperature of the air conditioner cold source heat exchanger is equal to or lower than the air dew point temperature, the water vapor contained in the air will precipitate and condense on the surface of the air conditioner cold source heat exchanger. When the dew drops increase to a certain size, they will slide to the condensation water tray under the end of the air conditioner, thus forming condensed water. At this time, the condensed water temperature is generally close to the air dew point temperature.

[0003] Reducing carbon emissions has become the mainstream, and it is necessary to increase the application of advanced energy-saving and water-saving technologies and accelerate the application of refrigeration energy-saving technologies such as natural cooling sources, near-end refrigeration, and liquid cooling. And according to the differences in natural climate conditions, it is increasingly urgent to promote advanced and applicable energy-saving technologies according to local conditions, accelerate the application of advanced and applicable water-saving technologies and equipment, and improve the efficiency of water resource utilization. In the field of energy storage air conditioning, the condensed water condensed by the evaporator is usually directly discharged outside the unit, which greatly wastes water resources. Summary of the invention

[0004] Therefore, the present application provides a condensate recovery and utilization component, a cabinet air conditioner and a control method thereof, which can solve the problem in the prior art that the condensate condensed in the evaporator is usually directly discharged outside the unit, greatly wasting water resources.

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

[0006] A water receiving tray is arranged below the evaporator; the water receiving tray receives condensed water precipitated from the surface of the evaporator;

[0007] A water storage box is arranged below the condenser; the water storage box is connected to the water receiving pan pipeline, and the condensed water flows into the water storage box through the pipeline;

[0008] The spray device comprises a water pump and a spray head, wherein the inlet of the water pump is connected to the water storage box, and the outlet is connected to the spray head; the water pump is provided with a coaxially connected transmission mechanism, and the transmission mechanism drives the spray head to move and spray the condensed water onto the condenser.

[0009] In some embodiments,

[0010] The spray device also includes a spray frame, and the spray head is arranged on the spray frame; the transmission mechanism is connected to the spray frame to drive the spray frame to move.

[0011] In some embodiments,

[0012] There are multiple nozzles, which are respectively arranged at the side and / or the top facing the condenser.

[0013] In some embodiments,

[0014] The transmission mechanism comprises a cam mechanism coaxially arranged with the water pump, and the cam mechanism operates to make the spray head move back and forth.

[0015] In some embodiments,

[0016] The water storage box is also connected with a tap water pipeline.

[0017] In some embodiments,

[0018] A partition is provided between the evaporator and the condenser, and the partition is a hollow structure. The condensed water flows through the water pump, the interior of the partition and the nozzle in sequence, and then is sprayed onto the condenser.

[0019] In some embodiments,

[0020] The outlet of the water pump is connected to the upper inlet of the partition through a pipeline, and the lower outlet of the partition is connected to the nozzle.

[0021] According to another aspect of the present application, a cabinet air conditioner is provided, comprising the condensed water recycling component as described above.

[0022] According to another aspect of the present application, a control method of the cabinet air conditioner as described above is provided, comprising:

[0023] The cabinet air conditioner is turned on to detect the liquid level of the water storage box;

[0024] When the liquid level height is greater than a preset height, the spray device is turned on; and the operating intensity of the spray device is adjusted according to the temperature difference between the ambient temperature and the set temperature of the cabinet air conditioner.

[0025] In some embodiments,

[0026] The temperature difference is set to m;

[0027] m is greater than 15°C, and the pressure difference of the water pump is set to be >0.7Mpa;

[0028] When 5℃≤m≤15℃, the pressure difference of the water pump is set to 0.2~0.7Mpa;

[0029] When the temperature is less than 5°C, the pressure difference of the water pump is set to be less than 0.2Mpa.

[0030] A condensed water recycling component provided in the present application includes: a water receiving pan, which is arranged below the evaporator; the water receiving pan receives the condensed water precipitated on the surface of the evaporator; a water storage box, which is arranged below the condenser; the water storage box is connected to the water receiving pan pipeline, and the condensed water flows into the water storage box through the pipeline; a spray device includes a water pump and a nozzle, the inlet of the water pump is connected to the water storage box, and the outlet is connected to the nozzle; the water pump is provided with a coaxially connected transmission mechanism, and the transmission mechanism drives the nozzle to move and spray the condensed water onto the condenser.

[0031] This application has the following beneficial effects:

[0032] The condensed water from the evaporator is introduced into the water storage box below the condenser, and the condensed water in the water storage box is sprayed onto the condenser in combination with a spray device. The condenser is cooled by direct evaporative cooling, so that the condensed water can be utilized and the energy efficiency of the air-conditioning system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the implementation methods or the prior art descriptions. The drawings described below are merely exemplary, and for those of ordinary skill in the art, other implementation drawings can be derived from the provided drawings without creative work.

[0034] Figure 1 This is a schematic diagram of the structure of a cabinet air conditioner according to an embodiment of the present application;

[0035] Figure 2 This is a partial structural schematic diagram of a condensed water recycling component according to an embodiment of the present application;

[0036] Figure 3 This is a partial structural schematic diagram of a condensed water recycling component according to an embodiment of the present application;

[0037] Figure 4 This is a schematic diagram of the structure of a condensed water recycling component according to an embodiment of the present application;

[0038] Figure 5 This is a control flow chart of the cabinet air conditioner according to an embodiment of the present application.

[0039] The reference numerals are:

[0040] 1. Water storage box; 2. Condenser;

[0041] 3. Spray rack; 31. Spray head;

[0042] 4. Partition; 5. Internal fan; 6. Casing; 7. Evaporator; 8. Water tray; 9. Compressor; 10. External fan; 11. Water pump; 12. Pressure difference sensor; 13. Three-way valve; 14. Solenoid valve; 15. Liquid level switch; 16. Transmission mechanism. DETAILED DESCRIPTION

[0043] 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, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means 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 creative work are within the scope of protection of this application.

[0044] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present 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, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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.

[0046] 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.

[0047] See also Figures 1 to 5 As shown, according to an embodiment of the present application, a condensed water recycling component includes:

[0048] The water receiving tray 8 is arranged below the evaporator 7; the water receiving tray 8 receives the condensed water precipitated on the surface of the evaporator 7;

[0049] A water storage box 1 is arranged below the condenser 2; the water storage box 1 is connected to the water receiving tray 8 through a pipeline, and the condensed water flows into the water storage box 1 through the pipeline;

[0050] The spraying device includes a water pump 11 and a nozzle 21. The inlet of the water pump 11 is connected to the water storage box 1, and the outlet is connected to the nozzle 31. The water pump 11 is provided with a coaxially connected transmission mechanism 16, and the transmission mechanism 16 drives the nozzle 31 to move and spray the condensed water onto the condenser 2.

[0051] The present application introduces the condensed water condensed by the evaporator 7 into the water storage box 1 below the condenser 2, and uses a spray device to evenly spray the condensed water in the water storage box 1 onto the condenser 2, and uses direct evaporative cooling to cool the condenser 2, so that the condensed water is utilized and the energy efficiency of the air-conditioning system is improved.

[0052] In conventional operation, the condensed water from the evaporator 7 is directly discharged; however, since the condensed water itself still carries cold energy, directly discharging it will cause energy waste.

[0053] The present application collects the condensed water, stores it in a water storage box 1, and uses a spray device to spray the condensed water onto the condenser 2 above the water storage box 1, so that the coldness of the condensed water is utilized, which has a good cooling effect on the condenser 2 and improves the energy efficiency of the air conditioner.

[0054] The water pump 11 is coaxially connected to the transmission mechanism 16 to provide the water pump 11 with versatility, and the transmission mechanism 16 drives the nozzle 31 to move, so that the spraying position of the condensed water sprayed by the nozzle 31 is changed, and the corresponding spraying uniformity is improved, which has a better cooling effect on the condenser 2.

[0055] At the same time, part of the condensed water after the condenser 2 is cooled will be vaporized, and part that is not vaporized will drip into the water storage box 1 to be recycled and reused, thereby improving the reuse efficiency of the condensed water.

[0056] In the specific structural setting, the water receiving tray 8 is inclined at a certain angle (5°) to facilitate the discharge of condensed water, wherein the condensed water uses the gravity to flow into the water storage box 1 below the condenser 2.

[0057] In some embodiments,

[0058] The spray device further includes a spray frame 3, and the spray head 31 is arranged on the spray frame 3; the transmission mechanism 16 is connected to the spray frame 3 to drive the spray frame 3 to move.

[0059] In the spray device structure of the present application, the outlet of the water pump 11 is connected to the nozzle 31 by a pipeline connection. Based on the movable setting of the nozzle 31, the pipeline is specifically a hose structure; therefore, the nozzle 31 is arranged on the spray rack 3, and the transmission mechanism 16 directly drives the spray rack 3, so that the spray rack 3 is in a moving state, thereby achieving the purpose of moving the nozzle 31 and realizing uniform water-cooling of the condenser 2.

[0060] Due to the use of water pump 11 combined with nozzle 31, the condensed water is sprayed under pressure and is easily sprayed into mist onto the surface of condenser 2. Since condenser 2 itself is a high-temperature component, the condensed water sprayed onto its surface can easily evaporate and vaporize, taking away a large amount of heat from condenser 2, thereby achieving a good cooling effect.

[0061] In some embodiments,

[0062] There are multiple nozzles 31 , which are respectively arranged at the side and / or the top facing the condenser 2 .

[0063] A plurality of nozzles 31 are arranged on the spray rack 3, and are respectively located at the side and / or the top of the condenser 2. The corresponding spray rack 3 includes a part facing the side of the condenser 2 and a part facing the top of the condenser 2. The nozzle 31 facing the side of the condenser 2 can spray a large area of ​​the surface of the condenser 2 to improve the cooling efficiency, while the nozzle 31 facing the top of the condenser 2 can make the condensed water pass through the surface of the condenser 2 along the longest path, ensuring that the cold carried by the condensed water is effectively utilized.

[0064] In some embodiments,

[0065] The transmission mechanism 16 includes a cam mechanism coaxially arranged with the water pump 11 , and the operation of the cam mechanism drives the spray head 31 to perform reciprocating movement.

[0066] The transmission mechanism 16 is configured as a cam mechanism coaxial with the water pump 11, which may specifically be a speed-changing gear set and a cam. The water pump 11 drives the speed-changing gear set to drive the cam to rotate. The outer peripheral surface of the cam is annular, so that the spray head 31 can only move back and forth. Correspondingly, in the structure provided with the spray rack 3, the spray rack 3 always abuts against the outer peripheral surface of the cam. The reciprocating speed of the spray rack 3 is controlled by adjusting the rotation speed of the water pump 11, and the spraying condition is adjusted to adapt to changes in ambient temperature.

[0067] The specific adjustment method is that the rotation speed of the water pump 11 increases, the water pressure of the nozzle 31 is large, the spraying surface is large, and the reciprocating speed of the nozzle 31 is fast; the rotation speed of the water pump 11 decreases, the water pressure of the nozzle 31 is small, the spraying surface is small, and the reciprocating speed of the nozzle is slow.

[0068] In some embodiments,

[0069] The water storage box 1 is also connected to a tap water pipeline.

[0070] In order to prevent insufficient condensed water in the water storage box 1, the water storage box 1 is also connected to a tap water pipeline to ensure that there is sufficient water in the water storage box 1 to prevent the water pump 11 from idling and damaging the motor.

[0071] Correspondingly, when the water in the water storage box 1 is sufficient, the tap water pipeline is turned off, and an overflow pipe can be provided to drain the excess water in the water storage box 1.

[0072] When setting up the specific structure, a three-way valve 13 can be used to connect the water receiving tray 8, the tap water pipeline and the water storage box 1, and the circulation of each pipeline is achieved by adjusting the three-way valve 13. More specifically, a solenoid valve 14 is set on the tap water pipeline, which can be combined with a liquid level switch 15 on the water storage box 1 to achieve automatic water inlet control.

[0073] The solenoid valve 14 controls the on and off of the water inlet of the tap water to prevent the water pump 11 from running idle when the condensed water is insufficient, thereby causing damage to the water pump 11. When the liquid level in the water storage box 1 is too low (L1), the solenoid valve 14 is closed, and the tap water enters to replenish the water level. When the liquid level is higher than a certain level (L2), the solenoid valve 14 is disconnected, and the tap water supply stops until the liquid level is lower than the liquid level L1 and starts again.

[0074] In some embodiments,

[0075] A partition 4 is provided between the evaporator 7 and the condenser 2 . The partition 4 is a hollow structure. The condensed water flows through the water pump 11 , the interior of the partition 4 , and the nozzle 31 in sequence, and then is sprayed onto the condenser 2 .

[0076] In a conventional cabinet air conditioner, a partition 4 is disposed between the evaporator 7 and the condenser 2 to provide thermal insulation, and thus the partition 4 is usually made of a non-heat-conducting material.

[0077] In the present application, the partition 4 is made into a hollow structure, and the condensed water first flows through the hollow cavity of the partition 4 before being sprayed onto the condenser 2. The low-temperature condensed water can not only reduce the temperature on both sides of the partition 4, but also greatly isolate the heat transfer on both sides, thereby improving the energy efficiency of the air conditioner.

[0078] The partition 4 adopts a hollow sealed cavity structure. Since water has a large specific heat capacity, filling the hollow sealed cavity structure of the partition 4 with water can not only reduce temperature conduction, but also use low-temperature condensed water to further isolate the temperatures on both sides of the room and the outside.

[0079] In some embodiments,

[0080] The outlet of the water pump 11 is connected to the upper inlet of the partition 4 through a pipeline, and the lower outlet of the partition 4 is connected to the nozzle 31.

[0081] The condensed water is transported to the upper part of the partition 4 by the water pump 11 and enters the hollow cavity, and then flows out from the lower part and is transported to the nozzle 31 to spray the condenser 2 .

[0082] Since a return air outlet is usually provided at the top of a conventional cabinet air conditioner, the hot air flow will first contact the upper side of the partition 4, so that the condensed water is first injected from the top of the partition 4, which is more conducive to cooling the air flow.

[0083] According to another aspect of the present application, a cabinet air conditioner is provided, comprising the condensed water recycling component as described above.

[0084] The present application uses the low-temperature condensed water of the evaporator 7 to be sprayed onto the outer surface of the condenser 2 via a spraying device, which can not only reuse the low-temperature condensed water, but also improve the energy efficiency of the energy storage cabinet air conditioner by utilizing direct evaporative cooling technology.

[0085] The structure of cabinet air conditioner, such as Figure 1 As shown, the interior of the housing 6 is divided by a partition 4, with an evaporator 7, a water tray 8 and an internal fan 5 on one side, and a condenser 2, a water storage box 1, a compressor 9 and an external fan 10 on the other side. The indoor and outdoor air are separated by the partition 4 in the middle to prevent mixing. The internal fan 5 is on the top, and the return air enters from the top of the evaporator 7 and is discharged from the bottom. The outdoor air enters from the bottom and is discharged from the side of the condenser 2. The spraying direction of the spray device is the same as the wind direction, which can enhance heat exchange.

[0086] According to another aspect of the present application, a control method of the cabinet air conditioner as described above is provided, comprising:

[0087] The cabinet air conditioner is turned on, and the liquid level of the water storage box 1 is detected;

[0088] When the liquid level height is greater than a preset height, the spray device is turned on; and the operating intensity of the spray device is adjusted according to the temperature difference between the ambient temperature and the set temperature of the cabinet air conditioner.

[0089] After the cabinet air conditioner unit is turned on, the liquid level in the water storage box 1 is determined. If the liquid level does not reach a certain level, the liquid level switch 15 does not work and the water pump 11 does not start. After running for a period of time, the condensed water level rises, causing the liquid level switch 15 to close, and the water pump 11 starts to work, realizing the spraying and cooling of the spray device and the recycling of the condensed water.

[0090] When the outdoor environment temperature is high, the water pump 11 starts to operate, and the water pump 11 drives the spray frame 3 and the spray head 31 to reciprocate up and down through the transmission mechanism 16.

[0091] In some embodiments,

[0092] The temperature difference is set to m;

[0093] m is greater than 15°C, and the pressure difference of the water pump 11 is set to be greater than 0.7Mpa;

[0094] When 5℃≤m≤15℃, the pressure difference of the water pump 11 is set to 0.2~0.7Mpa;

[0095] When the temperature is less than 5°C, the pressure difference of the water pump 11 is set to be less than 0.2Mpa.

[0096] After the water pump 11 is turned on, the temperature and pressure signals are collected:

[0097] 1. When the outdoor ambient temperature is detected and the set temperature is > 15°C, the water pump 11 pressure difference is set to > 0.7Mpa to increase the spraying water volume and spraying distance.

[0098] 2. When the outdoor ambient temperature is 5℃≤detected - the set temperature is ≤15℃, the pressure difference of the water pump 11 is set between 0.2 and 0.7Mpa without change. At this time, the spraying water volume and spraying distance are in a constant state.

[0099] 3. When the outdoor ambient temperature is detected and the set temperature is <5°C, the water pump 11 pressure difference is set to <0.2Mpa to reduce the spraying water volume and spraying distance.

[0100] The present application can solve the technical problems existing in the traditional structure: condensate discharge of cabinet air conditioners, high system energy consumption when the outdoor ambient temperature is too high, low energy efficiency of cabinet air conditioners, and heat conduction caused by the temperature difference between the indoor and outdoor areas of the cabinet air conditioner.

[0101] The present application uses the low-temperature condensed water of the evaporator 7 to spray in the condenser 2. The low-temperature condensed water in the pipeline can greatly isolate the temperature on both sides of the indoor and outdoor. Not only can the low-temperature condensed water be reused, but also the energy efficiency of the energy storage cabinet air conditioner can be improved by utilizing direct evaporative cooling technology. The coaxial motor water pump 11 is used to drive the speed regulating gear mechanism, and the up and down movement of the spray port fixing frame is automatically adjusted by the cam. In addition, according to the difference between the outdoor ambient temperature and the set temperature, the water flow rate is automatically adjusted by the pressure difference sensor 12 to adapt to the evaporative cooling speed and improve the energy efficiency of the overall cabinet air conditioner.

[0102] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0103] The above is only 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 in the protection scope of the present application. The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A condensed water recycling component, characterized in that: include: A water receiving tray (8) is arranged below the evaporator (7); the water receiving tray (8) receives condensed water precipitated from the surface of the evaporator (7); A water storage box (1) is arranged below the condenser (2); the water storage box (1) is connected to the water receiving tray (8) through a pipeline, and the condensed water flows into the water storage box (1) through the pipeline; The spraying device comprises a water pump (11) and a spray head (31), wherein the inlet of the water pump (11) is connected to the water storage box (1), and the outlet is connected to the spray head (31); the water pump (11) is provided with a coaxially connected transmission mechanism (16), and the transmission mechanism (16) drives the spray head (31) to move and spray the condensed water onto the condenser (2).

2. The condensate recovery and utilization assembly according to claim 1, characterized in that: The spray device also includes a spray frame (3), and the spray head (31) is arranged on the spray frame (3); the transmission mechanism (16) is connected to the spray frame (3) to drive the spray frame (3) to move.

3. The condensate recovery and utilization assembly according to claim 2, characterized in that: A plurality of the nozzles (31) are provided, and are respectively arranged at the side and / or the top facing the condenser (2).

4. The condensate recovery component according to any one of claims 1 to 3, characterized in that: The transmission mechanism (16) comprises a cam mechanism coaxially arranged with the water pump (11), and the cam mechanism operates to cause the spray head (31) to move back and forth.

5. The condensate recovery component according to any one of claims 1 to 3, characterized in that: The water storage box (1) is also connected to a tap water pipeline.

6. The condensate recovery and utilization assembly according to claim 5, characterized in that: A partition (4) is provided between the evaporator (7) and the condenser (2); the partition (4) is a hollow structure; the condensed water flows sequentially through the water pump (11), the interior of the partition (4) and the nozzle (31), and is then sprayed onto the condenser (2).

7. The condensate recovery and utilization assembly according to claim 6, characterized in that: The outlet of the water pump (11) is connected to the upper inlet of the partition (4) through a pipeline, and the lower outlet of the partition (4) is connected to the spray head (31).

8. A cabinet air conditioner, characterized in that: It comprises a condensate recovery and utilization component as described in any one of claims 1 to 7.

9. A control method for a cabinet air conditioner as claimed in claim 8, characterized in that: include: The cabinet air conditioner is turned on, and the liquid level of the water storage box (1) is detected; When the liquid level is greater than a preset height, the spray device is turned on; The operating intensity of the spray device is regulated according to the temperature difference between the ambient temperature and the set temperature of the cabinet air conditioner.

10. The control method according to claim 9, characterized in that: The temperature difference is set to m; m is greater than 15°C, and the pressure difference of the water pump (11) is set to be greater than 0.7Mpa; When 5°C≤m≤15°C, the pressure difference of the water pump (11) is set to 0.2-0.7Mpa; When the temperature is less than 5°C, the pressure difference of the water pump (11) is set to be less than 0.2Mpa.

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