CN216620129U

CN216620129U - Air exhaust check valve

Info

Publication number: CN216620129U
Application number: CN202123323812.4U
Authority: CN
Inventors: 刘鹏飞
Original assignee: Dongguan Huagon Automation Co ltd
Current assignee: Dongguan Huagon Automation Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-27
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to the technical field of paint spraying waste gas treatment, in particular to an exhaust check valve which comprises an exhaust pipeline, an air inlet arranged at one end of the exhaust pipeline, an air outlet arranged at the other end of the exhaust pipeline, a first water tank arranged on the exhaust pipeline and communicated with an inner cavity of the exhaust pipeline, a water inlet arranged on the first water tank, a water outlet arranged on the first water tank and a partition piece arranged in the exhaust pipeline and extending into the first water tank. The water in the first water tank is matched with the partition piece to partition the air inlet and the air outlet, so that the air exhaust and non-return efficiency of the air exhaust check valve is improved. When the water level in the first water tank is lower than the bottom end of the partition piece, the air inlet is communicated with the air outlet, and air in the paint spraying room enters the exhaust pipeline from the air inlet and is exhausted from the exhaust pipeline from the air outlet. The utility model has simple and compact structure, novel design and convenient production and installation of the exhaust pipe, the partition piece and the first water tank.

Description

Air exhaust check valve

Technical Field

The utility model relates to the technical field of paint spraying waste gas treatment, in particular to an exhaust check valve.

Background

The coating process is an important link of modern production, and people can not leave the coating process in various industries in production and life, and a spray room for spraying paint is common equipment in a coating workshop. Present air exhaust pipe internal rotation of spouting the room is provided with a plurality of gravity pendulum leaf, the during operation of airing exhaust, the gravity pendulum leaf is spouted the gaseous drive to the tilt state in the room, thereby realize the air intake of air exhaust pipe and the intercommunication of air outlet, however, spout paint gravity in the gas in the room can the adhesion on the gravity pendulum leaf, the gravity pendulum leaf is at the pivoted in-process, easily through the inside wall of paint particle adhesion at air exhaust pipe, lead to the gravity pendulum leaf can't reset under the effect of gravity, thereby it is not tight to appear the air exhaust pipe and close, gas flows backward to the problem in spouting the room. In addition, the structure of current check valve of airing exhaust is complicated, and the installation is inconvenient. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide an exhaust check valve.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an exhaust check valve, its includes exhaust pipe, set up in the air intake of exhaust pipe's one end, set up in the air outlet of exhaust pipe's the other end, set up on exhaust pipe and water tank one with exhaust pipe's inner chamber intercommunication, set up water inlet on water tank one, set up outlet on water tank one and set up in exhaust pipe and stretch to the partition piece in the water tank one.

Further, an overflow port is arranged on the first water tank, and the overflow port is located above the bottom end face of the partition in the vertical direction.

Furthermore, the exhaust check valve also comprises a water pump and a water tank II, and the water pump is used for pumping water in the water tank II into the water inlet.

Furthermore, the exhaust check valve further comprises a first water pipe and a second water pipe, one end of the second water pipe is communicated with an outlet of the water pump, the other end of the second water pipe is communicated with a water inlet, one end of the first water pipe is communicated with an inlet of the water pump, and the other end of the first water pipe is communicated with the second water tank.

Furthermore, the air exhaust check valve further comprises a connecting pipe and a second water discharge valve, wherein one end of the connecting pipe is communicated with the water outlet, the second water discharge valve is arranged on the connecting pipe, the other end of the connecting pipe is communicated with the second water tank, and the second water discharge valve is used for opening or closing a water inlet of the connecting pipe.

Further, the second water discharge valve can adopt an electric valve.

Furthermore, an overflow port is arranged on the first water tank, and the overflow port is positioned above the bottom end face of the partition member in the vertical direction; the exhaust check valve further comprises a return pipe, one end of the return pipe is communicated with the overflow port, and the other end of the return pipe is communicated with the second water tank.

Furthermore, a filtering device is arranged in the first water pipe.

The utility model has the beneficial effects that: the water in the water tank I is matched with the partition part to partition the air inlet and the air outlet, so that the problem that the air exhaust check valve is not tightly closed to cause gas to flow backwards into the paint spraying room is solved, and the air exhaust and non-return efficiency of the air exhaust check valve is improved. When the air escape in the room is spouted with paint to needs, discharge in the water drain outlet with water in the water tank one, when the surface of water in the water tank one was less than the bottom of partition piece, air intake and air outlet intercommunication, paint spout the room in the gas from the air intake get into exhaust pipe, in the exhaust pipe of discharging from the air outlet. The utility model has simple and compact structure, novel design and convenient production and installation of the exhaust pipe, the partition piece and the first water tank.

Drawings

Fig. 1 is a schematic perspective view of the present invention in an operating state.

Fig. 2 is a schematic perspective view of the stop and no-return state of the present invention.

Description of reference numerals:

1. an exhaust duct; 2. an air inlet; 3. an air outlet; 4. a first water tank; 5. a water inlet; 6. a water outlet; 7. a spacer; 8. an overflow port; 9. a first water pipe; 10. a water pump; 11. a water pipe II; 12. a second water tank; 13. a connecting pipe; 14. a second water discharge valve; 15. a first drainage valve; 16. a return pipe.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 2, the present invention provides an exhaust check valve, which includes an exhaust duct 1, an air inlet 2 disposed at one end of the exhaust duct 1, an air outlet 3 disposed at the other end of the exhaust duct 1, a water tank 4 disposed on the exhaust duct 1 and communicated with an inner cavity of the exhaust duct 1, a water inlet 5 disposed on a side wall of the water tank 4, a water outlet 6 disposed at a bottom end of the water tank 4, and a partition 7 disposed in the exhaust duct 1 and protruding into the water tank 4.

The utility model can be widely applied to various exhaust systems, and the embodiment is mainly exemplified by being applied to a paint spraying room. In the in-service use, follow water inlet 5 and to water tank 4 internal water injection, stop the water injection (the bottom that cuts off 7 in the water) after water submerges to cut off 7, the water of water tank 4 this moment cuts off air intake 2 and air outlet 3 with the cooperation of cutting off 7, has stopped the check valve of airing exhaust and has closed not tightly, leads to the gas to flow backward to the problem in the paint spouts the room, has improved the check efficiency of airing exhaust of check valve of airing exhaust. When the air in the paint spraying room needs to be exhausted, water in the water tank I4 is exhausted from the water outlet 6, when the water surface in the water tank I4 is lower than the bottom end of the partition part 7, the air inlet 2 is communicated with the air outlet 3, and the air in the paint spraying room enters the exhaust pipeline 1 from the air inlet 2 and then is exhausted from the exhaust pipeline 1 from the air outlet 3. Even if paint in the air in the paint spraying room is adhered to the partition part 7, normal air exhaust and partition of the air exhaust check valve cannot be influenced.

Further, the first water tank 4 is provided with an overflow port 8, and the overflow port 8 is located above the bottom end surface of the partition 7 in the vertical direction.

In the actual use process, when water is injected into the water tank I4 from the water inlet 5, the air inlet 2 and the air outlet 3 can be separated when the water flows through the separating part 7, and if the water is continuously injected into the water inlet 5, the water can be submerged into the exhaust pipeline 1, so that the normal operation of the exhaust pipeline 1 is influenced. The overflow port 8 is additionally arranged, water can flow out from the overflow port 8, the problem that excessive water is injected into the exhaust pipeline 1 is avoided, and stable and efficient operation of the exhaust pipeline 1 is facilitated.

Further, the exhaust check valve further comprises a water pump 10 and a second water tank 12, and the water pump 10 is used for pumping water in the second water tank 12 into the water inlet 5.

Specifically, the exhaust check valve further comprises a first water pipe 9 and a second water pipe 11, one end of the second water pipe 11 is communicated with an outlet of the water pump 10, the other end of the second water pipe 11 is communicated with the water inlet 5, one end of the first water pipe 9 is communicated with an inlet of the water pump 10, and the other end of the first water pipe 9 is communicated with a second water tank 12.

Specifically, a first drainage valve 15 is arranged on the first water pipe 9. In the practical use process, when the air exhaust needs to be stopped, the first water exhaust valve 15 is opened to start the water pump 10, the water pump 10 pumps the water in the second water tank 12 from the second water pipe 11 into the first water pipe 9, the water in the first water pipe 9 is injected into the first water tank 4 from the water inlet 5, and after the water in the first water tank 4 is matched with the partition piece 7 to partition the air inlet 2 and the air outlet 3, the water pump 10 and the first water exhaust valve 15 are closed to stop water injection. The water pump 10, the water pipe I9 and the water pipe II 11 are additionally arranged, so that the water injection efficiency and the automation degree of the exhaust check valve are improved.

Further, the exhaust check valve further comprises a connecting pipe 13 with one end communicated with the water outlet 6 and a second water discharge valve 14 arranged on the connecting pipe 13, the other end of the connecting pipe 13 is communicated with the second water tank 12, and the second water discharge valve 14 is used for opening or closing a water inlet of the connecting pipe 13.

In the in-service use process, when needs exhaust, open drain valve two 14 and discharge the water in water tank one 4 from connecting pipe 13 and save in water tank two 12, the water in water tank two 12 can be once more through pump 10 extraction to water tank one 4 in reuse, practiced thrift the cost, improve the utilization ratio of water resource, improved the rate of utilization and the practicality of water tank two 12.

Further, the second drain valve 14 may be an electric valve. The electric valve and the water pump 10 are respectively and electrically connected with the control center, and the electric valve, the water pump 10 and the first drainage valve 15 are integrally controlled by the control center, so that the automation degree of the utility model is improved.

Further, the exhaust check valve further comprises a return pipe 16, one end of the return pipe 16 is communicated with the overflow opening 8, and the other end of the return pipe 16 is communicated with the second water tank 12.

In the in-service use process, the water pump 10 continuously extracts the water in the water tank II 12 and injects the water into the water tank I4, the water overflowing from the overflow gap 8 is recovered to the water tank II 12 through the return pipe 16, the problem of insufficient water supply of the water tank II 12 is avoided while the utilization rate of water resources is improved, the water pump 10 is prevented from being dry-pumped, and the service life of the water pump 10 is prolonged.

Further, a filtering device is arranged in the first water pipe 9.

In the in-service use process, filter equipment is used for filtering aquatic impurity or paint, and the water rethread water pump 10 after the filtration pumps to water tank 4 in, has improved water pump 10's life, can also effectively prevent impurity or paint jam water pipe 9 of aquatic, has improved water injection efficiency of water pipe 9.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and besides, the present invention can be implemented in other ways, and any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides an exhaust check valve which characterized in that: including exhaust pipe (1), set up in air intake (2) of the one end of exhaust pipe (1), set up in air outlet (3) of the other end of exhaust pipe (1), set up on exhaust pipe (1) and with water tank (4) of the inner chamber intercommunication of exhaust pipe (1), set up water inlet (5) on water tank (4), set up outlet (6) on water tank (4) and set up in exhaust pipe (1) and stretch to separating piece (7) in water tank (4).

2. The venting check valve of claim 1, further comprising: an overflow opening (8) is formed in the first water tank (4), and the overflow opening (8) is located above the bottom end face of the partition (7) in the vertical direction.

3. The venting check valve of claim 1, further comprising: the exhaust check valve further comprises a water pump (10) and a second water tank (12), and the water pump (10) is used for pumping water in the second water tank (12) into the water inlet (5).

4. A venting check valve as defined in claim 3, wherein: the exhaust check valve further comprises a first water pipe (9) and a second water pipe (11), one end of the second water pipe (11) is communicated with an outlet of the water pump (10), the other end of the second water pipe (11) is communicated with the water inlet (5), one end of the first water pipe (9) is communicated with an inlet of the water pump (10), and the other end of the first water pipe (9) is communicated with the second water tank (12).

5. A venting check valve as defined in claim 3, wherein: the air exhaust check valve further comprises a connecting pipe (13) with one end communicated with the water outlet (6) and a second water discharge valve (14) arranged on the connecting pipe (13), the other end of the connecting pipe (13) is communicated with the second water tank (12), and the second water discharge valve (14) is used for opening or closing a water inlet of the connecting pipe (13).

6. The venting check valve of claim 5, wherein: and the second drainage valve (14) adopts an electric valve.

7. A venting check valve as defined in claim 3, wherein: an overflow opening (8) is formed in the first water tank (4), and the overflow opening (8) is located above the bottom end face of the partition (7) in the vertical direction; the exhaust check valve further comprises a return pipe (16), one end of the return pipe (16) is communicated with the overflow opening (8), and the other end of the return pipe (16) is communicated with the second water tank (12).

8. The venting check valve of claim 4, wherein: and a filtering device is arranged in the first water pipe (9).