Filtering air pipe for subway air conditioner

Abstract

The utility model discloses a filtering air pipe for a subway air conditioner, which belongs to the technical field of filtering and comprises a main pipe, two groups of switching pipes are fixed at one end of the main pipe, valves are arranged on the switching pipes, the end parts of the switching pipes are connected with an inlet pipe, an air filter screen is arranged in the inlet pipe, a through groove is formed in the top end of the inlet pipe, and the air filter screen is arranged in the through groove. A cleaning frame is fixed above the through groove, a washing plate is arranged in the cleaning frame in a sliding mode, spray heads are evenly arranged on the side face of the washing plate, a water receiving pipe communicated with the spray heads is installed at the top end of the washing plate, a water collecting groove is formed in the bottom end of the interior of an inlet pipe, and a water drainage pipe with a one-way valve is installed at the bottom end of the water collecting groove. And the air filter screen is comprehensively sprayed and washed through the uniformly arranged nozzles, so that air intake is not delayed while cleaning is carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering, in particular to a filtering air duct for subway air conditioning. Background Art

[0002] A subway station is a place where trains stop for the urban rail transit system. It refers to a station set up along the subway system, some of which are located underground and some are located above ground. Subway stations are places where people converge and gather, and the flow of people is large. In order to ensure the air quality in the station, the external air is generally filtered through the air conditioning filter duct and then transported to the subway station, while the internal air is discharged at the same time to achieve clean air replacement in the subway station. Now, air filters are generally added to the air duct to filter and transport the air.

[0003] The current Chinese patent application number CN201820844028.7 discloses an automatically cleanable filter duct for subway air conditioning, including an air duct, a filter area is provided near the air inlet in the air duct, the filter area includes support rods arranged in an upper and lower staggered manner, and an air filter is mounted on the support rods. The return air duct section in the filter area is a cleaning pipe, the pipe wall of the cleaning pipe is two-layered, and a cavity is provided between the two layers of pipe walls. A plurality of nozzles are provided on the inner wall of the upper section of the cleaning pipe, and the lower section of the cleaning pipe is a downwardly protruding water collecting part, and a plurality of through holes are provided on the inner pipe wall of the water collecting part and also protrude downward; the upper part of the cleaning pipe is connected to a water tank, the water tank is connected to a water pump, the top of the water tank is connected to the protrusion at the outer end of the water collecting part, and a water filter is provided horizontally in the water tank. The device realizes automatic cleaning of the filter, but the nozzle cannot fully cover and flush the filter when in use, and the cleaning effect is poor, which affects the air intake.

[0004] Based on this, the utility model designs a filter air duct for subway air conditioning to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a filter air duct for subway air conditioning.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A filter air duct for subway air conditioning includes a main pipe, two sets of switching pipes are fixed at one end of the main pipe, valves are provided on the switching pipes, the ends of the switching pipes are connected to an inlet pipe, an air filter is installed in the inlet pipe, a through slot is provided at the top of the inlet pipe, a cleaning frame is fixed above the through slot, a flushing plate slides in the cleaning frame, nozzles are evenly provided on the sides of the flushing plate, a water receiving pipe connected to the nozzles is installed at the top of the flushing plate, a water collecting tank is provided at the bottom end of the inlet pipe, and a drain pipe with a one-way valve is installed at the bottom end of the water collecting tank.

[0008] Furthermore, connecting plates are symmetrically provided on both sides of the switching pipe, and connecting screw holes are provided on the connecting plates, the main pipe and the side surfaces of the inlet pipe, and connecting bolts are threadedly connected to the inner threads of the connecting screw holes.

[0009] Furthermore, the through groove is arranged in the direction of the inlet pipe close to the switching pipe, the length of the through groove is equal to the length of the inner cavity of the inlet pipe in this direction, the cleaning frame is threadedly fixed to the top of the inlet pipe, the length of the flushing plate is equal to the length of the through groove, and the height of the flushing plate is equal to the height of the inner cavity of the inlet pipe.

[0010] Furthermore, the water collecting tank is arranged in a direction where the inlet pipe is away from the switching pipe, and the vertical cross-section of the water collecting tank is an inverted trapezoid.

[0011] Furthermore, a slide groove is provided on the inner wall of the cleaning frame and the inner wall of the through slot, a slide slides in the slide groove, the flushing plate is fixed on the side of the slide, and the top of the inner wall of the cleaning frame and the top of the slide are magnetically adsorbed.

[0012] Furthermore, it also includes a circulation part, which includes a water tank, a water pump, a water suction pipe, a tee pipe, a connecting pipe and a return pipe. The water pump is connected to the water tank through the water suction pipe, and the water pump is connected to the connecting pipe through the tee pipe. One end of the connecting pipe is connected to the water receiving pipe, the return pipe is connected to the water tank, and the other end of the return pipe is connected to the drain pipe.

[0013] Furthermore, the water extraction pipe is arranged near the bottom end of the inner cavity of the water tank, the return water pipe is connected to the side of the water tank and is arranged near the bottom end, and the connecting pipe is a water pipe with hard ends and a soft middle part.

[0014] Furthermore, a water inlet is provided at the top of the water tank, a water outlet is provided on the side of the water tank near the bottom, and the center of the water outlet end is on the vertical center line of the side of the water tank.

[0015] Furthermore, rectangular grooves are symmetrically provided on both sides of the center of the top of the water tank, filter plates are inserted into the rectangular grooves, and a handle is installed on the top of the filter plate.

[0016] Furthermore, a sewage trough is provided on the side of the water tank near the edge, and the bottom of the sewage trough and the bottom of the inner cavity of the water tank are on the same horizontal plane.

[0017] Beneficial effects

[0018] 1. By setting up two sets of switching pipes, valves, inlet pipes, through grooves, cleaning frames, flushing plates, nozzles, water connection pipes, water collection tanks and drain pipes, when the air filter needs to be cleaned, the flushing plate is moved into the inlet pipe through the cleaning frame, and water is supplied to the flushing plate through the water connection pipe. The air filter is fully sprayed and cleaned through the evenly arranged nozzles. The wastewater generated during the spraying process is discharged through the water collection tank and the drain pipe to clean the air filter. At the same time, the valve is used to open the passage of the other set of inlet pipes and switching pipes, so that the air intake is not delayed while cleaning.

[0019] 2. By setting connecting plates, connecting screw holes and connecting bolts, and utilizing the threaded cooperation of the connecting bolts and the connecting screw holes, it is convenient to switch the loading and unloading of the pipe, main pipe and inlet pipe; by setting the slide groove and the slide plate, and utilizing the sliding cooperation of the slide plate and the slide groove, it is convenient to move the flushing plate into the inlet pipe; by setting the circulation parts, starting the water pump, and utilizing the suction pipe to transport the water in the water tank through the tee pipe to a group of connecting pipes, thereby entering the water receiving pipe and the flushing plate, and the air filter is fully sprayed and cleaned through the evenly arranged nozzles. The waste water generated during the spraying process is discharged through the water collection tank through the drain pipe to clean the air filter. The waste water returns to the water tank through the return pipe, is filtered by the filter plate, and then recycled and reused; by setting the water outlet, rectangular groove, and sewage trough, when the filter plate and water need to be replaced, the water outlet is opened to drain the water in the water tank, and then the sewage trough is opened to discharge the debris, and finally the filter plate can be pulled out to achieve replacement, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention 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. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a three-dimensional diagram of the main structure of a filter air duct for subway air conditioning in the utility model;

[0022] Figure 2 This is a three-dimensional diagram of the upper structure of the inlet pipe of a filter air duct for subway air conditioning according to the present invention;

[0023] Figure 3 This is a three-dimensional diagram of the inlet pipe structure of a filter air duct for subway air conditioning according to the present utility model;

[0024] Figure 4 This is a three-dimensional diagram of the cleaning frame structure of a filter air duct for a subway air conditioner according to the present utility model;

[0025] Figure 5This is a three-dimensional diagram of the structure of a flushing plate for a filter air duct used in a subway air conditioner according to the utility model;

[0026] Figure 6 This is a three-dimensional diagram of the water tank structure of a filter air duct for subway air conditioning in the utility model;

[0027] Figure 7 This is a three-dimensional diagram of the pipe box structure of a filter air duct for subway air conditioning according to the utility model.

[0028] The numbers in the figure represent:

[0029] 1. Main pipe; 2. Switching pipe; 3. Valve; 4. Inlet pipe; 5. Air filter; 6. Through slot; 7. Cleaning frame; 8. Flushing plate; 9. Nozzle; 10. Water connection pipe; 11. Water collection tank; 12. Drain pipe; 13. Connecting plate; 14. Connecting screw hole; 15. Connecting bolt; 16. Slide; 17. Slide plate; 18. Water tank; 19. Water pump; 20. Suction pipe; 21. Tee pipe; 22. Connecting pipe; 23. Return pipe; 24. Water filling port; 25. Water outlet; 26. Rectangular groove; 27. Filter plate; 28. Handle; 29. ​​Drain trough. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] In some embodiments, please refer to the accompanying drawings. Figure 1 、 Figure 3 、 Figure 4 and Figure 5 A filter air duct for subway air conditioning includes a main pipe 1, two sets of switching pipes 2 are fixed at one end of the main pipe 1, a valve 3 is provided on the switching pipe 2, an inlet pipe 4 is connected to the end of the switching pipe 2, an air filter 5 is installed in the inlet pipe 4, a through slot 6 is opened at the top of the inlet pipe 4, a cleaning frame 7 is fixed above the through slot 6, a flushing plate 8 slides in the cleaning frame 7, nozzles 9 are evenly arranged on the side of the flushing plate 8, a water receiving pipe 10 connected to the nozzle 9 is installed on the top of the flushing plate 8, a water collecting tank 11 is opened at the bottom end of the inlet pipe 4, and a drain pipe 12 with a one-way valve is installed at the bottom end of the water collecting tank 11;

[0033] In the embodiment of the present invention, when it is necessary to clean the air filter 5 in the inlet pipe 4, the valve 3 on one side is closed and the valve 3 on the other side is opened, so that the gas enters the main pipe 1 through the other set of inlet pipes 4 and continues to work. The flushing plate 8 is moved into the inlet pipe 4 through the cleaning frame 7, and water is supplied to the flushing plate 8 through the water connection pipe 10. The air filter 5 is fully sprayed and washed through the evenly arranged nozzles 9. The waste water generated during the spraying process is discharged through the water collection tank 11 and the drain pipe 12, thereby achieving the cleaning of the air filter 5.

[0034] In the embodiment of the present utility model, by setting two groups of switching pipes 2, valves 3, inlet pipes 4, through grooves 6, cleaning frames 7, flushing plates 8, nozzles 9, water connection pipes 10, water collection tanks 11 and drain pipes 12, when it is necessary to clean the air filter 5, the flushing plate 8 is moved into the inlet pipe 4 through the cleaning frame 7, and water is supplied to the flushing plate 8 through the water connection pipes 10. The air filter 5 is fully sprayed and washed through the evenly arranged nozzles 9. The waste water generated during the spraying process is discharged through the water collection tank 11 and the drain pipe 12, thereby cleaning the air filter 5. At the same time, the valve 3 is used to open the passage of the other group of inlet pipes 4 and the switching pipe 2, so that the air intake is not delayed while cleaning.

[0035] In one embodiment of the present invention, connecting plates 13 are symmetrically provided on both sides of the switching pipe 2. Connecting screw holes 14 are provided on the sides of the connecting plates 13, the main pipe 1 and the inlet pipe 4. The connecting screw holes 14 are internally threaded with connecting bolts 15. The threaded fit of the connecting bolts 15 and the connecting screw holes 14 facilitates the installation and removal of the switching pipe 2, the main pipe 1 and the inlet pipe 4. The through groove 6 is provided in the direction of the inlet pipe 4 close to the switching pipe 2. The length of the through groove 6 is equal to the length of the inner cavity of the inlet pipe 4 in this direction. The cleaning frame 7 is threadedly fixed to the top of the inlet pipe 4. The length of the flushing plate 8 is equal to the length of the through groove 6. The height of the washing plate 8 is equal to the height of the inner cavity of the inlet pipe 4, ensuring that the nozzle 9 on the washing plate 8 can fully cover the air filter 5; the water collecting trough 11 is arranged in the direction of the inlet pipe 4 away from the switching pipe 2, and the vertical cross-section of the water collecting trough 11 is an inverted trapezoidal shape, which is convenient for water to flow out; the inner wall of the cleaning frame 7 and the inner wall of the through groove 6 are matched with a chute 16, and a slide 17 slides in the chute 16. The washing plate 8 is fixed to the side of the slide 17, and the top of the inner wall of the cleaning frame 7 and the top of the slide 17 are magnetically adsorbed. The sliding cooperation between the slide 17 and the chute 16 facilitates the movement of the washing plate 8 into the inlet pipe 4;

[0036] In some embodiments, as Figure 1 、 Figure 2 、 Figure 6 and Figure 7As shown, it also includes a circulation part, which includes a water tank 18, a water pump 19, a water pumping pipe 20, a tee pipe 21, a connecting pipe 22 and a return pipe 23. The water pump 19 is connected to the water tank 18 through the water pumping pipe 20, and the water pump 19 is connected to the connecting pipe 22 through the tee pipe 21. One end of the connecting pipe 22 is connected to the water receiving pipe 10, and the return pipe 23 is connected to the water tank 18. The other end of the return pipe 23 is connected to the drain pipe 12. The water pumping pipe 20 is arranged near the bottom of the inner cavity of the water tank 18, and the return pipe 23 is connected to the side of the water tank 18 near the bottom. The end is set, the connecting pipe 22 is a water pipe with hard ends and soft middle part, a water filling port 24 is opened at the top of the water tank 18, and a water outlet 25 is opened on the side of the water tank 18 near the bottom. The center of the end of the water outlet 25 is on the vertical center line of the side of the water tank 18. Rectangular grooves 26 are symmetrically opened on both sides of the center of the top of the water tank 18. A filter plate 27 is inserted in the rectangular groove 26. A handle 28 is installed on the top of the filter plate 27. A sewage trough 29 is opened on the side of the water tank 18 near the edge. The bottom of the sewage trough 29 and the bottom of the inner cavity of the water tank 18 are on the same horizontal plane.

[0037] In the embodiment of the present invention, the water inlet 24 is opened, a certain amount of water is first injected into the water tank 18, and then the water inlet 24 is closed. As the device is used, when it is necessary to clean the air filter 5 in the inlet pipe 4, the valve 3 on one side is closed and the valve 3 on the other side is opened, so that the gas enters the main pipe 1 through the other set of inlet pipes 4 and continues to work. Then, under the cooperation of the chute 16 and the slide 17, the flushing plate 8 is moved into the inlet pipe 4 through the cleaning frame 7, the water pump 18 is started, and the water in the water tank 19 is transported to a set of connecting pipes 4 through the three-way pipe 21 by using the water pump 20. The water flows through the pipe 22 and then into the water receiving pipe 10 and the flushing plate 8. The air filter 5 is fully sprayed and washed by the evenly arranged nozzles 9. The waste water generated during the spraying process is discharged through the water collecting tank 11 and the drain pipe 12 to clean the air filter 5. The waste water returns to the water tank 18 through the return pipe 23 and is filtered by the filter plate 27 before being reused. When the filter plate 27 and water need to be replaced, the water outlet 25 is opened to drain the water in the water tank 18, and then the sewage trough 29 is opened to discharge the debris. Finally, the filter plate 27 can be pulled out to replace it.

[0038] In the embodiment of the present invention, by setting a circulation part, starting the water pump 18, and using the suction pipe 20 to transport the water in the water tank 19 through the three-way pipe 21 to a group of connecting pipes 22, thereby entering the water receiving pipe 10 and the flushing plate 8, the air filter 5 is comprehensively sprayed and washed by the evenly arranged nozzles 9. The waste water generated during the spraying process is discharged through the water collection tank 11 and the drain pipe 12 to achieve the cleaning of the air filter 5. The waste water returns to the water tank 18 through the return pipe 23 and is filtered by the filter plate 27 and then recycled for reuse; by setting the water outlet 25, the rectangular groove 26, and the sewage trough 29, when the filter plate 27 and water need to be replaced, the water outlet 25 is opened to discharge the water in the water tank 18, and then the sewage trough 29 is opened to discharge the debris, and finally the filter plate 27 can be pulled out to achieve replacement and easy use.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A filter air duct for subway air conditioning, comprising a main pipe (1), characterized in that: Two groups of switching pipes (2) are fixed at one end of the main pipe (1), a valve (3) is provided on the switching pipe (2), an inlet pipe (4) is connected to the end of the switching pipe (2), an air filter (5) is installed in the inlet pipe (4), a through groove (6) is provided at the top of the inlet pipe (4), a cleaning frame (7) is fixed above the through groove (6), a flushing plate (8) slides in the cleaning frame (7), nozzles (9) are evenly provided on the side of the flushing plate (8), a water receiving pipe (10) connected to the nozzle (9) is installed at the top of the flushing plate (8), a water collecting tank (11) is provided at the bottom end of the inlet pipe (4), and a drain pipe (12) with a one-way valve is installed at the bottom end of the water collecting tank (11).

2. The filter air duct for subway air conditioning according to claim 1, characterized in that: The switching pipe (2) is symmetrically provided with connecting plates (13), and the connecting plates (13), the main pipe (1) and the side surfaces of the inlet pipe (4) are all provided with connecting screw holes (14), and the connecting screw holes (14) are internally threaded with connecting bolts (15).

3. The filter air duct for subway air conditioning according to claim 2, characterized in that: The through groove (6) is arranged in the direction of the inlet pipe (4) close to the switching pipe (2), the length of the through groove (6) is equal to the length of the inner cavity of the inlet pipe (4) in this direction, the cleaning frame (7) is threadedly fixed to the top of the inlet pipe (4), the length of the flushing plate (8) is equal to the length of the through groove (6), and the height of the flushing plate (8) is equal to the height of the inner cavity of the inlet pipe (4).

4. The filter air duct for subway air conditioning according to claim 3, characterized in that: The water collecting trough (11) is arranged in a direction where the inlet pipe (4) is away from the switching pipe (2), and the vertical cross-section of the water collecting trough (11) is an inverted trapezoid.

5. The filter air duct for subway air conditioning according to claim 4, characterized in that: The inner wall of the cleaning frame (7) and the inner wall of the through groove (6) are matched with a slide groove (16), a slide plate (17) slides in the slide groove (16), the flushing plate (8) is fixed on the side of the slide plate (17), and the top of the inner wall of the cleaning frame (7) and the top of the slide plate (17) are magnetically adsorbed and matched.

6. The filter air duct for subway air conditioning according to claim 5, characterized in that: The utility model also includes a circulation part, wherein the circulation part includes a water tank (18), a water pump (19), a water suction pipe (20), a three-way pipe (21), a connecting pipe (22) and a return pipe (23). The water pump (19) is connected to the water tank (18) through the water suction pipe (20), the water pump (19) is connected to the connecting pipe (22) through the three-way pipe (21), one end of the connecting pipe (22) is connected to the water receiving pipe (10), the return pipe (23) is connected to the water tank (18), and the other end of the return pipe (23) is connected to the drain pipe (12).

7. The filter air duct for subway air conditioning according to claim 6, characterized in that: The water pumping pipe (20) is arranged near the bottom end of the inner cavity of the water tank (18), the water return pipe (23) is connected to the side of the water tank (18) and is arranged near the bottom end, and the connecting pipe (22) is a water pipe with hard ends and a soft middle part.

8. The filter air duct for subway air conditioning according to claim 7, characterized in that: The top of the water tank (18) is provided with a water inlet (24), and the side of the water tank (18) is provided with a water outlet (25) near the bottom, and the center of the end of the water outlet (25) is on the vertical center line of the side of the water tank (18).

9. The filter air duct for subway air conditioning according to claim 8, characterized in that: A rectangular groove (26) is symmetrically provided on both sides of the center of the top of the water tank (18), a filter plate (27) is inserted into the rectangular groove (26), and a handle (28) is installed on the top of the filter plate (27).

10. The filter air duct for subway air conditioning according to claim 9, characterized in that: A drainage trough (29) is provided on the side of the water tank (18) near the edge, and the bottom end of the drainage trough (29) and the bottom end of the inner cavity of the water tank (18) are located at the same horizontal plane.

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