Hot air spraying dry gas filtering device

Abstract

The utility model discloses a hot air spraying dry gas filtering device which comprises a water-cooling clamping cylinder, a gas filtering outer cylinder, a flow guide cover, a flow regulating valve and a right-angle connecting piece, the gas filtering outer cylinder is arranged in the water-cooling clamping cylinder, one end of the right-angle connecting piece is connected with the flow regulating valve in a sealing mode, and the bottom end of the flow regulating valve is welded with the flow guide cover. The bottom end of the flow guide cover is connected with the gas filtering outer cylinder in a clamped mode, a ceramic filtering outer sleeve is arranged in the gas filtering outer cylinder, a metal filtering inner core sleeve is arranged in the ceramic filtering outer sleeve, and a filter paper column sleeve is arranged in the middle of the metal filtering inner core sleeve. According to the utility model, the ceramic filter inner core rod, the filter paper column sleeve, the metal filter inner core sleeve, the ceramic filter outer sleeve, the first filter baffle ring, the second filter baffle ring and the flow guide discharge channel are arranged, so that gas can be filtered layer by layer by utilizing the designed structure during filtering; and the content of harmful substances and particulate matters in the gas is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a hot air spraying and drying gas filtering device, belonging to the technical field of gas filtering. Background Technique

[0002] Spraying is to spray paint onto the surface of an object through a spraying device, usually using hot air spraying, so hot air flow is required. After the hot air flow is sprayed inside the spraying box, it needs to be filtered and then discharged. The patent publication number CN201920860440.2 discloses a gas filtering device, including: a first filtering member, a first through hole for gas flow is provided inside the first filtering member, and the first through hole is communicated with the air inlet of the device to be inflated; a second through hole communicated with the first through hole is provided on the first filtering member; a second filtering member is sleeved on the outer wall of the first filtering member, and a third through hole communicated with the second through hole is provided on the second filtering member, and the third through hole is communicated with an external gas source; after the third through hole, the second through hole and the first through hole are communicated with each other, a gas flow passage is formed. The gas filtering device provided by the utility model not only has a simple structure, is convenient for installation and maintenance, but also has a better gas through hole effect due to the adoption of double-layer through holes.

[0003] The disadvantages of the above-mentioned disclosed filtering device are: after filtering, the gas cannot be filtered quickly and effectively, and the gas contains heat, and the heat in the gas cannot be reduced. Therefore, we design a hot air spraying and drying gas filtering device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hot air spraying and drying gas filtering device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a hot air spraying and drying gas filtering device, including a water-cooled cartridge, a gas filtering outer cylinder, a flow deflector, a flow regulating valve and a right-angle connector. The gas filtering outer cylinder is arranged inside the water-cooled cartridge. One end of the right-angle connector is hermetically connected to the flow regulating valve. The bottom end of the flow regulating valve is welded to the flow deflector. The bottom end of the flow deflector is snap-connected to the gas filtering outer cylinder. A ceramic filtering outer sleeve is arranged inside the gas filtering outer cylinder. A metal filtering inner core sleeve is arranged inside the ceramic filtering outer sleeve. A filter paper column sleeve is arranged in the middle of the metal filtering inner core sleeve. A ceramic filtering inner core rod is arranged inside the filter paper column sleeve. The hollow part of the ceramic filtering inner core rod is communicated with the bottom end of the flow regulating valve.

[0006] In the above-mentioned hot air spraying and drying gas filtering device, a diversion outer discharge channel is arranged between the gas filtering outer cylinder and the ceramic filtering outer sleeve, and a first filtering retaining ring is arranged inside the diversion outer discharge channel.

[0007] In the above-mentioned hot air spraying and drying gas filtering device, a second filtering retaining ring connected to the diversion outer discharge channel is arranged at the top of the first filtering retaining ring, and the filtering precision of the second filtering retaining ring is greater than that of the first filtering retaining ring.

[0008] In the above-mentioned hot air spraying and drying gas filtering device, heat dissipation fins are arranged on the outer surface of the water-cooled cartridge, and the heat-conducting ends of the heat dissipation fins are located inside the water-cooled cartridge.

[0009] In the above-mentioned hot air spraying and drying gas filtering device, an air inlet connecting pipe is arranged at one end of the right-angle connecting piece, and an air inlet connecting valve seat is arranged at one end of the air inlet connecting pipe.

[0010] In the above-mentioned hot air spraying and drying gas filtering device, an exhaust connecting pipe is arranged at one end of the diversion cover, and an exhaust valve seat is arranged at one end of the exhaust connecting pipe.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the hot air spraying and drying gas filtering device of the present utility model, by arranging a ceramic filtering inner core rod, a filter paper column sleeve, a metal filtering inner core sleeve, a ceramic filtering outer sleeve, a first filtering retaining ring, a second filtering retaining ring and a diversion outer discharge channel, when filtering, the gas can be filtered layer by layer by using the above-designed structure, effectively reducing the content of harmful substances and particulate matters in the gas; at the same time, by arranging a water-cooled cartridge and heat dissipation fins, the gas can be cooled, and the heat in the gas can be effectively reduced, which is convenient for better discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of a hot air spraying and drying gas filtering device of the present utility model.

[0014] Figure 2 It is a structural schematic diagram of a gas filtering outer cylinder of a hot air spraying and drying gas filtering device of the present utility model.

[0015] Figure 3 It is a structural schematic diagram of a ceramic filtering inner core rod of a hot air spraying and drying gas filtering device of the present utility model.

[0016] In the figure: 1. Water-cooled cartridge; 2. Gas filtering outer cylinder; 3. Diversion cover; 4. Flow regulating valve; 5. Right-angle connecting piece; 6. Air inlet connecting pipe; 7. Air inlet connecting valve seat; 8. Exhaust connecting pipe; 9. Exhaust valve seat; 10. Ceramic filtering inner core rod; 11. Filter paper column sleeve; 12. Metal filtering inner core sleeve; 13. Ceramic filtering outer sleeve; 14. First filtering retaining ring; 15. Second filtering retaining ring; 16. Diversion outer discharge channel; 17. Heat dissipation fins. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3 , the present utility model provides a technical solution for a hot air spraying and drying gas filtering device:

[0019] Embodiment: The filtering device includes a water-cooled cartridge 1, a gas filtering outer cylinder 2, a flow guide cover 3, a flow regulating valve 4 and a right-angle connector 5. The gas filtering outer cylinder 2 is arranged inside the water-cooled cartridge 1. One end of the right-angle connector 5 is hermetically connected to the flow regulating valve 4. The bottom end of the flow regulating valve 4 is welded to the flow guide cover 3. The bottom end of the flow guide cover 3 is snap-connected to the gas filtering outer cylinder 2. A ceramic filtering outer sleeve 13 is arranged inside the gas filtering outer cylinder 2. A metal filtering inner core sleeve 12 is arranged inside the ceramic filtering outer sleeve 13. A filter paper column sleeve 11 is arranged in the middle of the metal filtering inner core sleeve 12. A ceramic filtering inner core rod 10 is arranged inside the filter paper column sleeve 11. The hollow part of the ceramic filtering inner core rod 10 communicates with the bottom end of the flow regulating valve 4.

[0020] In this implementation scheme, in order to further filter the gas and reduce the particulate matter in the gas, a diversion outer discharge channel 16 is arranged between the gas filtering outer cylinder 2 and the ceramic filtering outer sleeve 13. A first filtering retaining ring 14 is arranged inside the diversion outer discharge channel 16; a second filtering retaining ring 15 connected to the diversion outer discharge channel 16 is arranged on the top of the first filtering retaining ring 14. The filtering precision of the second filtering retaining ring 15 is greater than that of the first filtering retaining ring 14.

[0021] In this implementation scheme, in order to better cool the gas, heat dissipation fins 17 are arranged on the outer surface of the water-cooled cartridge 1. The heat-conducting end of the heat dissipation fins 17 is located inside the water-cooled cartridge 1.

[0022] In this implementation scheme, in order to better access the exhaust hole of the spraying device and facilitate connecting to the intake seat of the exhaust device, an intake connecting pipe 6 is arranged at one end of the right-angle connector 5. An intake connecting valve seat 7 is arranged at one end of the intake connecting pipe 6; an exhaust connecting pipe 8 is arranged at one end of the flow guide cover 3. An exhaust valve seat 9 is arranged at one end of the exhaust connecting pipe 8.

[0023] Working principle: The filtering device includes main structures such as a water-cooled cartridge 1, a gas filtering outer cylinder 2, a flow guide cover 3, a flow regulating valve 4, a right-angle connector 5, an air inlet connecting pipe 6, an air inlet connecting valve seat 7, an exhaust connecting pipe 8, and an exhaust valve seat 9. Among them, the gas filtering outer cylinder 2 is arranged inside the water-cooled cartridge 1. The outer surface of the water-cooled cartridge 1 is provided with heat dissipation fins 17. Water is filled inside the water-cooled cartridge 1 to the highest liquid level line. The water can absorb the heat in the gas and can effectively reduce the heat in the gas, which is convenient for better discharge. A ceramic filtering outer sleeve 13 is arranged inside the gas filtering outer cylinder 2. A metal filtering inner core sleeve 12 is arranged inside the ceramic filtering outer sleeve 13. A filter paper column sleeve 11 is arranged in the middle of the metal filtering inner core sleeve 12. A ceramic filtering inner core rod 10 is arranged inside the filter paper column sleeve 11. The hollow part of the ceramic filtering inner core rod 10 is communicated with the bottom end of the flow regulating valve 4. When the gas enters, the gas can be filtered successively through the ceramic filtering inner core rod 10, the filter paper column sleeve 11, the metal filtering inner core sleeve 12, the ceramic filtering outer sleeve 13, the flow guide and outer discharge channel 16, the first filtering retaining ring 14, and the second filtering retaining ring 15, which can better filter the gas and effectively reduce the content of harmful substances and particulate matter in the gas.

[0024] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A hot air spraying and drying gas filtering device, comprising a water-cooled cartridge (1), a gas filtering outer cylinder (2), a flow guide cover (3), a flow regulating valve (4) and a right-angle connecting piece (5), characterized in that, The gas filtering outer cylinder (2) is arranged inside the water-cooling cartridge (1). One end of the right-angle connecting piece (5) is hermetically connected to the flow regulating valve (4). The bottom end of the flow regulating valve (4) is welded to the flow guiding cover (3). The bottom end of the flow guiding cover (3) is snap-connected to the gas filtering outer cylinder (2). A ceramic filtering outer sleeve (13) is arranged inside the gas filtering outer cylinder (2). A metal filtering inner core sleeve (12) is arranged inside the ceramic filtering outer sleeve (13). A filter paper column sleeve (11) is arranged in the middle of the metal filtering inner core sleeve (12). A ceramic filtering inner core rod (10) is arranged inside the filter paper column sleeve (11). The hollow part of the ceramic filtering inner core rod (10) communicates with the bottom end of the flow regulating valve (4).

2. The hot air spraying and drying gas filtering device according to claim 1, wherein: A flow guiding outer discharge channel (16) is arranged between the gas filtering outer cylinder (2) and the ceramic filtering outer sleeve (13). A first filtering retaining ring (14) is arranged inside the flow guiding outer discharge channel (16).

3. The hot air spraying and drying gas filtering device according to claim 2, characterized in that: A second filtering retaining ring (15) connected to the flow guiding outer discharge channel (16) is arranged on the top of the first filtering retaining ring (14). The filtering precision of the second filtering retaining ring (15) is greater than that of the first filtering retaining ring (14).

4. A hot air spraying and drying gas filtering device according to claim 1, characterized in that: Heat dissipation fins (17) are arranged on the outer surface of the water-cooling cartridge (1). The heat conducting ends of the heat dissipation fins (17) are located inside the water-cooling cartridge (1).

5. The hot air spraying and drying gas filtering device according to claim 1, wherein: An air inlet connecting pipe (6) is arranged at one end of the right-angle connecting piece (5). An air inlet connecting valve seat (7) is arranged at one end of the air inlet connecting pipe (6).

6. The hot air spraying and drying gas filtering device according to claim 1, characterized in that: An exhaust connecting pipe (8) is arranged at one end of the flow guiding cover (3). An exhaust valve seat (9) is arranged at one end of the exhaust connecting pipe (8).

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