Filtering structure for water tank of air-cooled heat pump unit

Abstract

The utility model relates to the technical field of water tank filtering, in particular to a filtering structure for a water tank of an air-cooled heat pump unit. Large-water-volume filtration can be achieved, self-cleaning can be achieved, the filter screen cleaning interval period is effectively prolonged, and the structural layout is compact and reasonable; comprising a water tank body, a partition plate arranged in the water tank body and a self-cleaning filtering mechanism, the partition plate divides the water tank body into a water purification cavity and a filter residue cavity, the self-cleaning filtering mechanism is installed above the partition plate, the self-cleaning filtering mechanism comprises a plate frame and a water guide plate, a first filter screen is installed on the plate frame, and a second filter screen is installed on the water guide plate. The plate frame and the water guide plate are folded in a V shape, one end of the water guide plate is connected with the plate frame, the other end of the water guide plate inclines downwards and extends into the water purification cavity, and the water guide plate is located below the plate frame; the water tank body is provided with a water inlet pipe group extending to the upper part of the residue filtering cavity, the output end of the water inlet pipe group faces the water guide plate, and the partition plate is provided with a through hole for communicating the purified water cavity with the residue filtering cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of water tank filtering, in particular to a filtering structure for a water tank of an air-cooled heat pump unit. Background Art

[0002] As we all know, air-cooled heat pump is a new type of air-conditioning equipment with the characteristics of high efficiency and energy saving. During its operation, as the water circulates in the pipe network, the residue in the pipe follows the circulating water and flows into the air-cooled heat pump unit, which will cause damage to the air-cooled heat pump unit. Therefore, a buffer water tank needs to be set up to perform buffering and filtering treatment on this part of the water.

[0003] For example, a Chinese utility model patent discloses a buffer water tank that can filter impurities and prevent water flow failures in heat pump mainframes (publication (announcement) number CN217274748U), which includes a buffer water tank body, a water inlet is provided on the left side of the buffer water tank body, a second threaded connection is provided on the left side of the water inlet, a four-way piece is threadedly connected to the outer side of the second threaded connection, a first threaded connection and a third threaded connection are provided at the upper and lower ends of the four-way piece, respectively, an external threaded double-headed connection is provided on the outer side of the first threaded connection, and a drain valve is fixed on the outer side of the third threaded connection. The buffer water tank that can filter impurities and prevent water flow failures in heat pump mainframes can open the gate valve to allow water to flow through the three-way valve into the water tank and finally flow into the mainframe, thereby judging whether the water flow circulation between the mainframe, the water pump and the water tank is unobstructed and whether there is any failure, thereby helping maintenance personnel to judge the source of the failure, and opening the valve to adjust the return water flow can also eliminate the return water flow insufficient fault alarm of the heat pump mainframe.

[0004] However, when the inventors implemented this device, they found the following defects: the circulating water was filtered by setting a filter net on the pipeline, the filtering area was small, which easily caused the pipeline to be blocked, and the cleaning cycle was short, which increased the maintenance difficulty for the operator; and the filtered water volume was small, which made it difficult to meet the large amount of clean water demand of the air-cooled heat pump unit. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a filtering structure for a water tank of an air-cooled heat pump unit which can filter a large amount of water, is self-cleaning, effectively prolongs the interval between filter screen cleaning, and has a compact and reasonable structural layout.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering structure for a water tank of an air-cooled heat pump unit, comprising a water tank body, a partition plate arranged in the water tank body and a self-cleaning filtering mechanism, the partition plate divides the water tank body into a clean water chamber and a filter residue chamber, the self-cleaning filtering mechanism is installed above the partition plate, the self-cleaning filtering mechanism comprises a plate frame and a water guide plate, a first filter screen is installed on the plate frame, the plate frame and the water guide plate are arranged in a V-shaped folding manner, one end of the water guide plate is connected to the plate frame, and the other end of the water guide plate extends downwardly into the clean water chamber, and the water guide plate is located below the plate frame; a water inlet pipe group extending into the top of the filter residue chamber is installed on the water tank body, the output end of the water inlet pipe group faces the water guide plate, and a through opening connecting the clean water chamber and the filter residue chamber is provided at the partition plate.

[0009] Preferably, it also includes an auxiliary slag cleaning component, which includes two elastic components, a hinge shaft and a driving rod symmetrically arranged in the water tank body, the elastic component includes a vertical rail, a first slide seat and a second slide seat slidably mounted on the vertical rail, the plate frame is rotatably mounted between the first slide seats on the two elastic components, and the water guide plate is rotatably mounted between the second slide seats on the two elastic components. Springs are installed on the upper and lower parts of the vertical rail, and the first slide seat and the second slide seat are elastically connected to the top and bottom of the vertical rail respectively through springs. The plate frame and the water guide plate are hinged through a hinge shaft, and the driving rod is slidably mounted on the side wall of the water tank body, and the driving rod is rotatably connected to the hinge shaft.

[0010] Preferably, the water inlet pipe group includes a water inlet main pipe and a plurality of water inlet branches connected to the water inlet main pipe, and the output ends of the water inlet branches have inclined end surfaces facing the top end of the plate frame.

[0011] Preferably, a flow regulating valve is installed on the water inlet branch.

[0012] Preferably, a second filter is installed at the opening.

[0013] Preferably, a handle is installed at the end of the driving rod.

[0014] Preferably, a slag discharge pipe connected to the bottom of the filter residue chamber is installed on the water tank body, and a stop valve is installed on the slag discharge pipe.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a filtering structure for the water tank of an air-cooled heat pump unit, which has the following beneficial effects: the filtering structure for the water tank of an air-cooled heat pump unit is injected into the top of the filter residue chamber through the water inlet pipe group through the circulating water, the circulating water flows to the inclined plate frame, the first filter screen intercepts the filter residue in the circulating water, the filtered clean water falls to the water guide plate and is guided into the clean water chamber through the water guide plate, and the filter residue on the first filter screen slides from the first filter screen into the filter residue chamber under the impact of water flow and the action of gravity, thereby realizing large water volume filtration, and can be self-cleaning, effectively extending the filter screen cleaning interval period, and the structural layout is compact and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 The utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0020] Figure 4 It is a schematic diagram of the connection structure of the self-cleaning filtering mechanism and the auxiliary slag cleaning component of the utility model;

[0021] Markings in the attached drawings: 1. water tank body; 2. partition plate; 3. plate frame; 4. water guide plate; 5. first filter screen; 6. through port; 7. hinge shaft; 8. drive rod; 9. vertical rail; 10. first slide seat; 11. second slide seat; 12. spring; 13. water inlet main pipe; 14. water inlet branch pipe; 15. flow regulating valve; 16. second filter screen; 17. handle; 18. slag discharge pipe; 19. stop valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model is a filtering structure for a water tank of an air-cooled heat pump unit, comprising a water tank body 1, a partition plate 2 arranged in the water tank body 1 and a self-cleaning filtering mechanism, wherein the partition plate 2 divides the water tank body 1 into a clean water chamber and a filter residue chamber, and the self-cleaning filtering mechanism is installed above the partition plate 2, and the self-cleaning filtering mechanism comprises a plate frame 3 and a water guide plate 4, a first filter screen 5 is installed on the plate frame 3, the plate frame 3 and the water guide plate 4 are arranged in a V-shaped folding manner, one end of the water guide plate 4 is connected to the plate frame 3, and the other end of the water guide plate 4 extends downwardly into the clean water chamber, and the water guide plate 4 is located below the plate frame 3; A water inlet pipe group extending into the top of the filter residue chamber is installed on the box body 1, and the output end of the water inlet pipe group faces the water guide plate 4. A through hole 6 connecting the clean water chamber and the filter residue chamber is provided at the partition plate 2; further, the liquid level in the clean water chamber is lower than the liquid level in the filter residue chamber, so that the clean water after sedimentation in the filter residue chamber flows back to the clean water chamber through the through hole 6; in this embodiment, the plate frame 3 and the inner wall of the water tank body 1 can be elastically connected through an elastic connecting piece, so that the plate frame 3 is in a vibrating state under the impact of the water flow, so as to promote the filter residue trapped on the first filter screen 5 to slide down more smoothly under the action of vibration.

[0024] Specifically, it also includes an auxiliary slag cleaning component, which includes two elastic components symmetrically arranged in the water tank body 1, a hinge shaft 7 and a driving rod 8. The elastic component includes a vertical rail 9, a first slide seat 10 and a second slide seat 11 slidably installed on the vertical rail 9, the plate frame 3 is rotatably installed between the first slide seats 10 on the two elastic components, and the water guide plate 4 is rotatably installed between the second slide seats 11 on the two elastic components. Springs 12 are installed on the upper and lower parts of the vertical rail 9. The first slide seat 10 and the second slide seat 11 are elastically connected to the top and bottom of the vertical rail 9 respectively through the springs 12. The plate frame 3 and the water guide plate 4 are hinged through the hinge shaft 7. The driving rod 8 is slidably installed It is installed on the side wall of the water tank body 1, and the driving rod 8 is rotatably connected with the hinge shaft 7; when filter residue adheres to the first filter screen 5, by pushing and pulling the driving rod 8, the driving rod 8 pushes the hinge shaft 7 to approach the inside of the water tank body 1, and the first slide 10 and the second slide 11 move up and down respectively, and the angle between the plate frame 3 and the water guide plate 4 becomes larger until the plate frame 3 tends to be vertical. The driving rod 8 is pushed and pulled back and forth. At this time, the filter residue adhering to the first filter screen 5 can be shaken off under the impact of the water flow, so as to clean the filter residue adhering to the first filter screen 5. When the force on the driving rod 8 is released, the first slide 10 and the second slide 11 reset themselves under the action of the spring 12.

[0025] Specifically, the water inlet pipe group includes a water inlet main pipe 13 and a plurality of water inlet branches 14 connected to the water inlet main pipe 13, and the output end of the water inlet branch 14 is inclined toward the top end of the plate frame 3; the circulating water passes through the water inlet main pipe 13 and is dispersed into the filter residue cavity through the water inlet branch 14, so that the circulating water is dispersed and falls on the first filter screen 5, avoiding excessive concentration of water, making full use of the filtering surface of the first filter screen 5, and improving the filtering effect.

[0026] Specifically, a flow regulating valve 15 is installed on the water inlet branch 14; more specifically, the flow regulating valve 15 is preferably a solenoid valve, through which the water volume at the water inlet branch 14 can be adjusted. When the filter residue at the first filter screen 5 needs to be cleaned, the water volume can be increased so that the water flow has a flushing effect on the inclined first filter screen 5, so that the filter residue is fully flushed away from the first filter screen 5.

[0027] Specifically, a second filter screen 16 is installed at the opening 6; the second filter screen 16 can filter the water flowing from the filter residue chamber to the clean water chamber to prevent the filter residue in the filter residue chamber from flowing into the clean water chamber.

[0028] Specifically, a handle 17 is installed at the end of the driving rod 8; the handle 17 can improve the operator's grip comfort of the driving rod 8 and prevent the end of the driving rod 8 from completely entering the water tank body 1.

[0029] Specifically, a slag discharge pipe 18 connected to the bottom of the filter residue chamber is installed on the water tank body 1, and a stop valve 19 is installed on the slag discharge pipe 18; the filter residue in the filter residue chamber can be discharged through the slag discharge pipe 18 by opening the stop valve 19.

[0030] When in use, the circulating water is injected through the water inlet main pipe 13, the circulating water is dispersed into the filter residue cavity through the water inlet branch 14, and then sprayed on the first filter screen 5. The first filter screen 5 intercepts the filter residue in the circulating water, and the filtered clean water falls to the water guide plate 4 and is guided to the clean water cavity through the water guide plate 4, and the filter residue on the first filter screen 5 slides from the first filter screen 5 to the filter residue cavity under the impact of water flow and the action of gravity. When the first filter screen 5 needs to be further cleaned, the operator pushes and pulls the driving rod 8, and the driving rod 8 pushes the hinge shaft 7 to approach the inside of the water tank body 1, and the first slide seat 10 and the second slide seat 11 move up and down respectively, and the angle between the plate frame 3 and the water guide plate 4 becomes larger until the plate frame 3 tends to be vertical. The driving rod 8 is pushed and pulled reciprocally. At this time, the filter residue adhered to the first filter screen 5 can be shaken off under the impact of the water flow, and the filter residue falling into the filter residue cavity is discharged through the slag discharge pipe 18, and the clean water in the clean water cavity is recycled.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A filter structure for a water tank of an air-cooled heat pump unit, characterized in that: It comprises a water tank body (1), a partition plate (2) arranged in the water tank body (1), and a self-cleaning filtering mechanism, wherein the partition plate (2) divides the water tank body (1) into a clean water chamber and a filter residue chamber; The self-cleaning filtering mechanism is installed above the partition plate (2), and comprises a plate frame (3) and a water guide plate (4). A first filter screen (5) is installed on the plate frame (3). The plate frame (3) and the water guide plate (4) are arranged in a V-shaped folding manner. One end of the water guide plate (4) is connected to the plate frame (3), and the other end of the water guide plate (4) extends downwardly into the clean water cavity. The water guide plate (4) is located below the plate frame (3). A water inlet pipe group extending above the filter residue cavity is installed on the water tank body (1), and the output end of the water inlet pipe group faces the water guide plate (4). A through opening (6) connecting the clean water cavity and the filter residue cavity is provided at the partition plate (2).

2. The filter structure for the water tank of the air-cooled heat pump unit according to claim 1, characterized in that: The auxiliary slag cleaning component also includes two elastic components symmetrically arranged in the water tank body (1), a hinge shaft (7) and a driving rod (8); the elastic component includes a vertical rail (9), a first slide seat (10) and a second slide seat (11) slidably mounted on the vertical rail (9); the plate frame (3) is rotatably mounted between the first slide seats (10) on the two elastic components; the water guide plate (4) is rotatably mounted between the second slide seats (11) on the two elastic components; springs (12) are installed on the upper and lower parts of the vertical rail (9); the first slide seat (10) and the second slide seat (11) are elastically connected to the top and bottom of the vertical rail (9) respectively through the springs (12); the plate frame (3) and the water guide plate (4) are hinged through the hinge shaft (7); the driving rod (8) is slidably mounted on the side wall of the water tank body (1); and the driving rod (8) is rotatably connected to the hinge shaft (7).

3. The filter structure for the water tank of the air-cooled heat pump unit according to claim 2, characterized in that: The water inlet pipe group comprises a water inlet main pipe (13) and a plurality of water inlet manifolds (14) connected to the water inlet main pipe (13), wherein the output ends of the water inlet manifolds (14) face the inclined end surfaces at the top ends of the plate frame (3).

4. The filter structure for the water tank of the air-cooled heat pump unit according to claim 3, characterized in that: A flow regulating valve (15) is installed on the water inlet branch (14).

5. The filter structure for the water tank of the air-cooled heat pump unit according to claim 4, characterized in that: A second filter screen (16) is installed at the through opening (6).

6. The filter structure for the water tank of the air-cooled heat pump unit according to claim 5, characterized in that: A handle (17) is installed at the end of the driving rod (8).

7. The filter structure for the water tank of the air-cooled heat pump unit according to claim 6, characterized in that: The water tank body (1) is provided with a slag discharge pipe (18) which is in communication with the bottom of the filter residue chamber, and a stop valve (19) is provided on the slag discharge pipe (18).

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