Evaporative cooling heat pump unit capable of cleaning dust
By installing a dust cleaning brush and an air valve controller between the air inlet of the evaporative heat pump and the evaporative heat exchange module, the problem of air inlet blockage was solved, the efficiency of the evaporative heat pump was improved, and the size of the equipment was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN BEIYUAN MECHANICAL & ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-19
AI Technical Summary
Dust easily accumulates in the air inlet of evaporative heat pumps, causing blockages and affecting their efficiency.
A dust cleaning brush connected to a motor is installed between the air inlet of the evaporative heat pump and the evaporative heat exchange module. The dust cleaning brush is driven by the motor to clean the air inlet. An air valve is installed inside the evaporative heat pump and connected to a controller to control the opening and closing of the air valve during heating and cooling to optimize the airflow.
It effectively avoids dust clogging of the air inlet, improves the efficiency of the evaporative heat pump, and reduces the size of the equipment by optimizing the air duct structure.
Smart Images

Figure CN224381815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporative heat pump technology, specifically to an evaporative heat pump unit that can be cleaned of dust. Background Technology
[0002] An evaporative heat pump is an air conditioning device that combines evaporative cooling technology and heat pump technology. It achieves efficient energy conversion during heating and cooling processes. However, air needs to be introduced during these processes. Therefore, the outer casing of the evaporative heat pump is densely covered with several air inlets for air introduction. Dust easily accumulates in these air inlets. Currently, evaporative heat pump units do not clean the dust accumulated in the air inlets, which can easily cause blockage and affect the efficiency of the evaporative heat pump. Utility Model Content
[0003] The purpose of this invention is to provide an evaporative heat pump unit that can clean dust. A cleaning component is installed inside the evaporative heat pump between the air inlet and the evaporative heat exchange module. The cleaning component cleans the dust from the air inlet, which can prevent dust from clogging the air inlet and affecting the efficiency of the evaporative heat exchange module.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:
[0005] An evaporative heat pump unit capable of cleaning dust includes: an evaporative heat pump, wherein a fan, a condenser, and an air valve are arranged sequentially from top to bottom inside the evaporative heat pump; evaporative heat exchange modules are arranged opposite each other on both sides of the condenser and located above the air valves; a plurality of air inlets corresponding to the evaporative heat exchange modules are densely arranged on both sides of the outer shell of the evaporative heat pump, and the air inlets are connected to the evaporative heat exchange modules inside the evaporative heat pump; a screw is arranged between the air inlets and the evaporative heat exchange modules; the screw is connected to the output end of a motor; a slider is threadedly connected to the screw; a dust cleaning brush is connected to one side of the slider; the dust cleaning brush is attached to the inner wall of the outer shell.
[0006] A further preferred technical solution is as follows: the evaporative cooling heat exchange module includes packing material and an evaporative cooling heat exchange tube located below the packing material. The air inlet on one side is arranged from top to bottom according to the positions of the packing material and the evaporative cooling heat exchange tube. The central axis of the screw is parallel to the direction of arrangement, so that both ends of the screw are connected to the inner wall of the evaporative cooling heat pump housing. One end of the screw passes through the housing of the evaporative cooling heat pump and is connected to a motor.
[0007] A further preferred technical solution is as follows: a guide rod is provided on one side of the screw, the central axis of the guide rod is parallel to the central axis of the screw, the two ends of the guide rod are fixedly connected to the inner wall of the evaporative heat pump housing, and the slider is slidably connected to the guide rod.
[0008] A further preferred technical solution is as follows: the air valve is connected to the controller of the evaporative heat pump. The controller controls the air valve to open when the evaporative heat pump is heating, so that air enters through the air valve, passes through the condenser, and is discharged from the fan. The controller also controls the air valve to close when the evaporative heat pump is cooling, so that air enters through the packing and evaporative heat exchange tubes, passes through the condenser, and is discharged from the fan.
[0009] A further preferred technical solution is as follows: a spray head is also provided above the packing material. The spray head is fixed on the inner wall of the evaporative heat pump housing. The spray head is connected to a spray head pump. Driven by the spray head pump, the spray head sprays water onto the packing material.
[0010] A further preferred technical solution is as follows: a water receiving tray is also provided below the evaporative cooling heat exchange tube. The water receiving tray is fixed on the inner wall of the evaporative cooling heat pump shell and located above the air valve. The lower side of the water receiving tray is connected to the input end of the spray head pump, and the output end of the spray head pump is connected to the spray head. The water in the water receiving tray is transported to the spray head by the spray head pump and then sprayed onto the packing.
[0011] A further preferred technical solution is that baffles are also provided on both sides of the condenser, the baffles are fixed to one side of the packing and the evaporative heat exchange tube, and the baffles extend downward from the packing to the evaporative heat exchange tube.
[0012] A further preferred technical solution is that an air inlet is provided on the bottom of the evaporative heat pump casing, and the air inlet is connected to the air valve through a channel inside the evaporative heat pump.
[0013] A further preferred technical solution is that the condenser consists of two finned heat exchangers arranged opposite each other, and the two finned heat exchangers are inclined inward from top to bottom to form a V-shaped structure.
[0014] The beneficial effects of this utility model are:
[0015] This utility model provides an evaporative heat pump unit with dust-cleanable design. The structure of the evaporative heat pump is based on the relative positioning of the condenser. Packing and evaporative heat exchange tubes are arranged on both sides of two oppositely arranged finned heat exchangers. An air valve is installed below the condenser and is connected to the controller of the evaporative heat pump. The controller controls the air valve to open when the evaporative heat pump is heating and to close when it is cooling. An air duct is formed between the fan and the air valve inside the evaporative heat pump. This air duct can meet the needs of evaporative cooling when the air volume requirement is small during cooling and heating when the air volume requirement is large, thereby improving the efficiency of the evaporative heat pump.
[0016] Furthermore, compared to existing evaporative heat pumps, the evaporative heat pump uses a single air duct to achieve both heating and cooling processes, which reduces the size of the evaporative heat pump.
[0017] A cleaning component is installed for the air inlet corresponding to the packing and evaporative heat exchange tube. The cleaning component cleans the dust from the air inlet, which can prevent dust from clogging the air inlet and affecting the efficiency of the evaporative heat exchange module. Attached Figure Description
[0018] Figure 1 This is a slanted view of the evaporative heat pump structure in Embodiment 1 of this utility model;
[0019] Figure 2 This is a cross-sectional view of the evaporative heat pump in Embodiment 1 of this utility model;
[0020] Explanation of reference numerals in the attached drawings: 1-Evaporative heat pump casing, 101-Air inlet, 2-Fan, 3-Condenser, 4-Air valve, 5-Packing, 6-Evaporative heat exchange tube, 7-Screw, 8-Motor, 90-Slider, 91-Dust cleaning brush, 10-Guide rod, 11-Spray head, 12-Water tray, 13-Water baffle. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the embodiments of this utility model are not limited thereto.
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:
[0025] Example 1
[0026] like Figures 1-2 As shown, this embodiment provides an evaporative heat pump unit capable of cleaning dust, including: an evaporative heat pump, in which a fan 2, a condenser 3, and an air valve 4 are arranged sequentially from top to bottom; evaporative heat exchange modules are arranged opposite each other on both sides of the condenser 3 and located above the air valve 4; several air inlets 101 corresponding to the evaporative heat exchange modules are densely arranged on both sides of the outer shell 1 of the evaporative heat pump, and the air inlets 101 are connected through the evaporative heat exchange modules inside the evaporative heat pump; a screw 7 is arranged between the air inlets 101 and the evaporative heat exchange modules; the screw 7 is connected to the output end of a motor 8; a slider 90 is threadedly connected to the screw 7; a dust cleaning brush 91 is connected to one side of the slider 90 and the dust cleaning brush 91 is attached to the inner wall of the outer shell.
[0027] A further preferred technical solution is as follows: the evaporative heat exchange module includes packing 5, an evaporative heat exchange tube 6 located below the packing 5, and air inlets 101 on one side arranged from top to bottom according to the positions of the packing 5 and the evaporative heat exchange tube 6. The central axis of the screw 7 is parallel to the arrangement direction, so that both ends of the screw 7 are connected to the inner wall of the evaporative heat pump housing 1. One end of the screw 7 passes through the housing of the evaporative heat pump and is connected to a motor 8. The purpose is to allow the dust cleaning brush 91 to move up and down under the drive of the motor 8, while adhering to the inner wall of the housing, so that the dust cleaning brush 91 can clean the dust from the air inlets 101 on the housing.
[0028] The brush head of the dust cleaning brush 91 can be a bristle brush. When the bristle brush is in contact with the inner wall of the outer shell, while the motor 8 drives it to move up and down, the bristle brush cleans the air inlet 101, which can clean the dust and prevent the dust from accumulating in the air inlet 101, thereby affecting the efficiency of the packing 5 and the evaporative cooling heat exchange tube 6.
[0029] A further preferred technical solution is as follows: a guide rod 10 is provided on one side of the screw 7, the central axis of the guide rod 10 is parallel to the central axis of the screw 7, and both ends of the guide rod 10 are fixedly connected to the inner wall of the evaporative heat pump housing 1. The slider 90 is slidably connected to the guide rod 10. The purpose is to improve the stability of the dust cleaning brush 91 and achieve a guiding function by using the guide rod 10 as the brush moves up and down.
[0030] Specifically, in this embodiment, a slot can be opened on the outer casing 1 of the evaporative heat pump, located below the screw 7 and the guide rod 10. The slot is connected to the collection tank by a pull-out mechanism. The collection tank can be pulled out of the slot by pulling it out. When the drive motor 8 cleans the dust, the motor 8 drives the screw 7 to rotate, thereby driving the slider 90 and the dust cleaning brush 91 to move up and down to clean the dust on the inner wall of the outer casing. The brush also cleans the dust in the air inlet 101, preventing dust accumulation in the air inlet 101. The dust can fall into the collection tank. By pulling the collection tank, the dust collected in the collection tank can be cleaned.
[0031] A further preferred technical solution is as follows: the air valve 4 is connected to the controller of the evaporative heat pump. The controller controls the air valve 4 to open when the evaporative heat pump is heating, so that air enters through the air valve 4, passes through the condenser 3, and is discharged from the fan 2. The controller controls the air valve 4 to close when the evaporative heat pump is cooling, so that air enters through the packing 5 and the evaporative heat exchange tube 6, passes through the condenser 3, and is discharged from the fan 2.
[0032] Inside the evaporative heat pump, a fan 2, a condenser 3, and an air valve 4 are arranged sequentially from top to bottom. Evaporative heat exchange modules are arranged on both sides of the condenser 3, above the air valve 4. Based on the above structure, the air valve 4 is connected to the controller of the evaporative heat pump in the evaporative heat pump module unit. The controller can control the air valve 4 to open when the evaporative heat pump is heating and to close when it is cooling. An air duct is formed between the fan 2 and the air valve 4 inside the evaporative heat pump, which can reduce the size of the evaporative heat pump. Furthermore, this air duct can meet the needs of using evaporative cooling when the air volume requirement is small during cooling and using the air valve 4 when the air volume requirement is large during heating, making this utility model more practical and improving the efficiency of the evaporative heat pump.
[0033] A further preferred technical solution is as follows: a spray head 11 is also provided above the packing 5. The spray head 11 is fixed on the inner wall of the evaporative heat pump housing 1. The spray head 11 is connected to a spray head 11 pump. Driven by the spray head 11 pump, the spray head 11 sprays water onto the packing 5. After being evenly distributed and cooled by the packing 5, the water then falls onto the condenser 3. Specifically, a portion of the water carries away most of the condensation heat by relying on the latent heat of vaporization after absorbing heat. The evaporated water vapor is discharged into the atmosphere by the fan 2. Another portion of the water carries away part of the condensation heat of the refrigerant by relying on the sensible heat of its own heat absorption and temperature rise, and then returns to the water receiving pan 12.
[0034] A further preferred technical solution is as follows: a water receiving tray 12 is also provided below the evaporative cooling heat exchange tube 6. The water receiving tray 12 is fixed on the inner wall of the evaporative cooling heat pump shell 1 and located above the air valve 4. The lower side of the water receiving tray 12 is connected to the input end of the spray head 11 pump, and the output end of the spray head 11 pump is connected to the spray head 11. The water in the water receiving tray 12 is transported to the spray head 11 by the spray head 11 pump and then sprayed onto the packing 5.
[0035] A further preferred technical solution is that baffles 13 are also provided on both sides of the condenser 3, the baffles 13 are fixed on one side of the packing 5 and the evaporative cooling heat exchange tube 6, and the baffles 13 extend downward from the packing 5 to the evaporative cooling heat exchange tube 6.
[0036] A further preferred technical solution is that an air inlet is provided on the bottom of the evaporative heat pump housing 1, and the air inlet is connected to the air valve 4 through a channel inside the evaporative heat pump.
[0037] A further preferred technical solution is that the condenser 3 consists of two opposing finned heat exchangers, which are inclined inward from top to bottom to form a V-shaped structure. Specifically, the V-shaped arrangement of the two finned heat exchangers allows each finned heat exchanger to be cooled by sprayed water evaporation. This structure improves the heat exchange method of the equipment, enhances its operational stability, increases its refrigeration efficiency, and reduces operating costs.
[0038] Specifically, in this embodiment, the condenser 3 in the evaporative heat pump is composed of two finned heat exchangers arranged opposite each other. A damper 4 is provided below the finned heat exchanger, and spray heads 11, packing 5, evaporative heat exchange tubes 6 and water receiving trays 12 are arranged opposite each other on both sides of the finned heat exchanger and are arranged from top to bottom in the outer shell 1 of the evaporative heat pump. In addition, corresponding air inlets are densely arranged on the outer shell of the evaporative heat pump for air to flow in. When the controller controls the evaporative heat pump to start heating, it sends a corresponding control signal to the gas valve, causing the gas valve to open. Air then flows from the air inlet to the channel, passes through the gas valve into the duct, passes through the finned heat exchanger, and flows out from the fan 2. In this duct, the air valve 4 provides a relatively large amount of air, which can meet the large air volume requirement during heating. When the controller controls the evaporative heat pump to start cooling, it sends a corresponding control signal to the gas valve, causing the gas valve to close. Air then enters the duct through the air inlet 101 facing the packing 5 and the evaporative cooling heat exchange tube 6, passes through the finned heat exchanger, and flows out from the fan 2. In this duct, the packing 5 and the evaporative cooling heat exchange tube 6 provide air volume using evaporative cooling, which meets the smaller air volume requirement during cooling and can also save costs.
[0039] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.
Claims
1. An evaporative heat pump unit capable of cleaning dust, characterized in that, include: An evaporative heat pump is provided, with a fan (2), a condenser (3), and a damper (4) arranged sequentially from top to bottom inside the evaporative heat pump. Evaporative heat exchange modules are arranged opposite each other on both sides of the condenser (3) and located above the damper (4). Several air inlets (101) corresponding to the evaporative heat exchange modules are densely arranged on both sides of the outer shell (1) of the evaporative heat pump. The air inlets (101) are connected through the evaporative heat exchange modules inside the evaporative heat pump. A screw (7) is arranged between the air inlets (101) and the evaporative heat exchange modules. The screw (7) is connected to the output end of a motor (8). A slider (90) is threaded onto the screw (7). A dust cleaning brush (91) is connected to one side of the slider (90). The dust cleaning brush (91) is attached to the inner wall of the outer shell.
2. The dust-cleanable evaporative heat pump unit according to claim 1, characterized in that, The evaporative heat exchange module includes packing (5) and an evaporative heat exchange tube (6) located below the packing (5). The air inlet (101) on one side is arranged from top to bottom according to the position of the packing (5) and the evaporative heat exchange tube (6). The central axis of the screw (7) is parallel to the direction of arrangement, so that both ends of the screw (7) are connected to the inner wall of the evaporative heat pump housing (1). One end of the screw (7) passes through the housing of the evaporative heat pump and is connected to a motor (8).
3. The dust-cleanable evaporative heat pump unit according to claim 2, characterized in that, A guide rod (10) is provided on one side of the screw (7). The central axis of the guide rod (10) is parallel to the central axis of the screw (7). The two ends of the guide rod (10) are fixedly connected to the inner wall of the evaporative heat pump housing (1). The slider (90) is slidably connected to the guide rod (10).
4. The dust-cleanable evaporative heat pump unit according to claim 2, characterized in that, The air valve (4) is connected to the controller of the evaporative heat pump. The controller controls the air valve (4) to open when the evaporative heat pump is heating, so that air enters through the air valve (4), passes through the condenser (3), and is discharged from the fan (2). The controller controls the air valve (4) to close when the evaporative heat pump is cooling, so that air enters through the packing (5) and the evaporative heat exchange tube (6), passes through the condenser (3), and is discharged from the fan (2).
5. The dust-cleanable evaporative heat pump unit according to claim 4, characterized in that, A spray head (11) is also provided above the packing material (5). The spray head (11) is fixed on the inner wall of the evaporative heat pump housing (1). The spray head (11) is connected to a spray head (11) pump. Driven by the spray head (11) pump, the spray head (11) sprays water onto the packing material (5).
6. The dust-cleanable evaporative heat pump unit according to claim 4, characterized in that, A water receiving tray (12) is also provided below the evaporative heat exchange tube (6). The water receiving tray (12) is fixed on the inner wall of the evaporative heat pump housing (1) and located above the air valve (4). The lower side of the water receiving tray (12) is connected to the input end of the spray head (11) pump. The output end of the spray head (11) pump is connected to the spray head (11). The water in the water receiving tray (12) is transported to the spray head (11) by the spray head (11) pump and then sprayed onto the packing (5).
7. The dust-cleanable evaporative heat pump unit according to claim 2, characterized in that, The condenser (3) is also provided with baffles (13) on both sides. The baffles (13) are fixed to one side of the packing (5) and the evaporative heat exchange tube (6). The baffles (13) extend downward from the packing (5) to the evaporative heat exchange tube (6).
8. The dust-cleanable evaporative heat pump unit according to claim 1, characterized in that, An air inlet is also provided on the bottom of the evaporative heat pump housing (1), and the air inlet is connected to the air valve (4) through the channel connected to it inside the evaporative heat pump.
9. The dust-cleanable evaporative heat pump unit according to claim 1, characterized in that, The condenser (3) consists of two finned heat exchangers arranged opposite each other, which are inclined inward from top to bottom to form a V-shaped structure.