CN219530570U

CN219530570U - Fire control relief pressure valve with explosion-proof structure

Info

Publication number: CN219530570U
Application number: CN202320468190.4U
Authority: CN
Inventors: 肖波; 姚普俭; 徐云建
Original assignee: Wuhan Wanjingchen Fire Technology Co ltd
Current assignee: Wuhan Wanjingchen Fire Technology Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-15
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to the technical field of pressure reducing valves, in particular to a fire-fighting pressure reducing valve with an explosion-proof structure, which comprises: one end of the pressure reducing valve is provided with a water outlet pipe which is connected with the rear section of the water supply main pipe valve in a sealing way through a second flange; the filter pipe is arranged at one end of the pressure reducing valve, which is far away from the water outlet pipe, one end of the filter pipe, which is close to the pressure reducing valve, is provided with a water delivery pipe, and the pipe orifice of the water delivery pipe, which is close to the filter pipe, is provided with a filter net card slot; the drain pipe is arranged below the water filtering pipe, the drain pipe and the water conveying pipe form an oblique angle, the upper end of the drain pipe is provided with an arc-shaped diversion trench, and the wall of the lower end of the drain pipe is provided with a butterfly valve; the beneficial effects are as follows: through the pipeline internal pressure of drainage pipe for the cassette is hugged closely to the valve block of butterfly valve, realizes sealed processing, through closing first elasticity seat gate valve and second elasticity seat gate valve, then opens the butterfly valve and clear up the filter screen piece, and the rethread breaks first flange and changes the processing to the filter screen piece, and impurity clearance is simple in the drainage pipe, and conveniently changes the filter screen piece.

Description

Fire control relief pressure valve with explosion-proof structure

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a fire-fighting pressure reducing valve with an explosion-proof structure.

Background

The fire-fighting pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by means of the energy of a medium, and a filtering device is usually arranged in front of the inlet of the fire-fighting pressure reducing valve and is used for preventing the inlet of impurities in supplied water from entering the valve body to cause the blockage of a valve port to cause explosion.

Chinese patent CN202020719389.6 discloses a high reliability fire control relief pressure valve, including valve body, inlet tube and outlet pipe, the inside case that is provided with of valve body and valve body top are through the bolt fastening control tube, the inside compression spring that is provided with of control tube and compression spring top are through the bolt fastening roof, the control tube top is connected with the threaded rod through the screw thread groove, valve body one end welding has inlet tube and inlet tube top to be connected with the water inlet manometer through the screw thread groove, the inside stainless steel filter screen that is fixed with through the draw-in groove of inlet tube and inlet tube bottom are connected with the storing up box through the screw thread groove, the welding of valve body other end has outlet pipe and outlet pipe top to be connected with the outlet manometer through the screw thread groove, the inside one-way breakwater that is connected with through the pivot of outlet pipe, the spraying of valve body surface has the anticorrosive coating. The utility model has simple structure and filtering function, can prevent water from flowing back into the valve body, and is suitable for wide popularization and use.

But in the in-service use, the diameter of filter screen is greater than the pipeline diameter, and the long-term use of filter screen can lead to filter screen filtration function to descend, and the clearance is comparatively difficult, causes the filter screen to damage easily and can't work, and can't change the filter screen of damage.

Disclosure of Invention

The utility model aims to provide a fire-fighting pressure reducing valve with an explosion-proof structure, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a fire protection pressure relief valve with an explosion proof structure, comprising:

the pressure reducing valve is provided with a water outlet pipe at one end, and the water outlet pipe is connected with the rear section of the water supply main pipe valve in a sealing way through a second flange;

the filter pipe is arranged at one end of the pressure reducing valve, which is far away from the water outlet pipe, one end of the filter pipe, which is close to the pressure reducing valve, is provided with a water delivery pipe, and the pipe orifice of the water delivery pipe, which is close to the filter pipe, is provided with a filter net card slot; a kind of electronic device with high-pressure air-conditioning system

The sewage drain pipe is arranged below the water filtering pipe, the sewage drain pipe and the water conveying pipe are in an oblique angle, the upper end of the sewage drain pipe is provided with an arc-shaped diversion trench, and the pipe wall at the lower end of the sewage drain pipe is provided with a butterfly valve.

Preferably, a second pressure gauge is arranged on the water outlet pipe, and a second elastic seat seal gate valve is arranged on the rear section of the water supply main pipe valve.

Preferably, the water pipe is provided with a first pressure gauge, and one end of the water filtering pipe far away from the pressure reducing valve is provided with a water inlet pipe.

Preferably, the water inlet pipe is connected with a front section of the main water supply pipe valve in a sealing way through a first flange, and a first elastic seat seal gate valve is arranged on the front section of the main water supply pipe valve.

Preferably, the filter screen clamping groove clamp is connected with a filter screen piece.

Preferably, a clamping seat is arranged on the inner pipe arm at the lower end of the sewage draining pipe.

Preferably, the butterfly valve is in sealing connection with the clamping seat.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the pressure in the pipe in the front and rear pipelines of the pressure reducing valve is observed through the two pressure gauges, the valve plate of the butterfly valve is clung to the clamping seat through the pressure in the pipeline of the water filtering pipe, the sealing treatment is realized, the filter screen sheet is cleaned by closing the first elastic seat sealing gate valve and the second elastic seat sealing gate valve and then opening the butterfly valve, the filter screen sheet is replaced by disconnecting the first flange, the impurity in the water filtering pipe is cleaned simply, and the filter screen sheet is convenient to replace.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a filter tube according to the present utility model;

fig. 3 is an enlarged view of area a in fig. 2.

In the figure: 1. a water supply main pipe valve front section; 2. a first flange; 3. a water filtering pipe; 4. a pressure reducing valve; 5. a first elastic seat seal gate valve; 6. a first pressure gauge; 7. a second pressure gauge; 8. a second flange; 9. a second elastic seat seal gate valve; 10. a filter screen sheet; 11. a water inlet pipe; 12. arc-shaped diversion trenches; 13. a water supply main pipe valve rear section; 14. a water pipe; 15. butterfly valve; 16. a clamping seat; 17. a filter card slot; 18. a water outlet pipe; 19. and a blow-down pipe.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the present utility model provides a technical solution: a fire protection pressure relief valve with an explosion proof structure, comprising:

the pressure reducing valve 4, one end of the pressure reducing valve 4 is provided with a water outlet pipe 18, and the water outlet pipe 18 is connected with the rear section 13 of the water supply main pipe valve in a sealing way through a second flange 8; the water outlet pipe 18 is provided with a second pressure gauge 7, and the rear section 13 of the water supply main pipe valve is provided with a second elastic seat seal gate valve 9; the water inlet pipe 11 is connected with the front section 1 of the water supply main pipe valve in a sealing way through the first flange 2, and the front section 1 of the water supply main pipe valve is provided with a first elastic seat seal gate valve 5;

the filter pipe 3 is arranged at one end of the pressure reducing valve 4 away from the water outlet pipe 18, one end of the filter pipe 3 close to the pressure reducing valve 4 is provided with a water conveying pipe 14, and a pipe orifice of the water conveying pipe 14 close to the filter pipe 3 is provided with a filter net card groove 17; the water pipe 14 is provided with a first pressure gauge 6, and one end of the water filtering pipe 3, which is far away from the pressure reducing valve 4, is provided with a water inlet pipe 11; the filter screen sheet 10 is connected with the filter screen card slot 17 through a clamp;

the drain pipe 19 is arranged below the water filtering pipe 3, the drain pipe 19 and the water conveying pipe 14 form an oblique angle, the upper end of the drain pipe 19 is provided with an arc-shaped diversion trench 12, and the pipe wall at the lower end of the drain pipe 19 is provided with a butterfly valve 15; a clamping seat 16 is arranged on an inner pipe arm at the lower end of the sewage discharge pipe 19, and the clamping seat 16 is made of rubber; the valve plate of the butterfly valve 15 is in sealing connection with the clamping seat 16.

When the device works, the pressure in the pipe is observed through the two pressure gauges in the front and the rear of the pressure reducing valve 4, the clamping seat 16 is tightly attached to the valve plate of the butterfly valve 15 through the pressure in the pipe of the water filtering pipe 3, sealing treatment is realized, the filter screen 10 is cleaned by closing the first elastic seat sealing gate valve 5 and the second elastic seat sealing gate valve 9 and then opening the butterfly valve 15, the filter screen 10 is replaced by disconnecting the first flange 2, and the beneficial effects of the device are that the cleaning of impurities in the water filtering pipe 3 is simple and the filter screen 10 is convenient to replace.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Fire control relief pressure valve with explosion-proof structure, its characterized in that: comprising the following steps:

a pressure reducing valve (4), wherein one end of the pressure reducing valve (4) is provided with a water outlet pipe (18), and the water outlet pipe (18) is connected with a rear section (13) of the water supply main pipe valve in a sealing way through a second flange (8);

the filter pipe (3) is arranged at one end of the pressure reducing valve (4) far away from the water outlet pipe (18), one end of the filter pipe (3) close to the pressure reducing valve (4) is provided with a water conveying pipe (14), and a pipe orifice of the water conveying pipe (14) close to the filter pipe (3) is provided with a filter net card groove (17); a kind of electronic device with high-pressure air-conditioning system

The sewage draining pipe (19), the sewage draining pipe (19) is arranged below the water filtering pipe (3), the sewage draining pipe (19) and the water conveying pipe (14) are in oblique angles, the upper end of the sewage draining pipe (19) is provided with an arc-shaped diversion trench (12), and the pipe wall at the lower end of the sewage draining pipe (19) is provided with a butterfly valve (15).

2. The fire protection pressure reducing valve with explosion-proof structure according to claim 1, wherein: the water outlet pipe (18) is provided with a second pressure gauge (7), and the rear section (13) of the water supply main pipe valve is provided with a second elastic seat seal gate valve (9).

3. The fire protection pressure reducing valve with explosion-proof structure according to claim 2, wherein: the water delivery pipe (14) is provided with a first pressure gauge (6), and one end of the water filtering pipe (3) far away from the pressure reducing valve (4) is provided with a water inlet pipe (11).

4. A fire protection pressure reducing valve with explosion proof structure according to claim 3, characterized in that: the water inlet pipe (11) is connected with a water supply main pipe valve front section (1) in a sealing mode through a first flange (2), and a first elastic seat seal gate valve (5) is arranged on the water supply main pipe valve front section (1).

5. The fire protection pressure reducing valve with explosion-proof structure according to claim 4, wherein: the filter screen clamping groove (17) is connected with a filter screen piece (10) through a clamp.

6. The fire protection pressure reducing valve with explosion-proof structure according to claim 5, wherein: the inner pipe arm at the lower end of the sewage draining pipe (19) is provided with a clamping seat (16), and the clamping seat (16) is made of rubber.

7. The fire protection pressure reducing valve with explosion-proof structure according to claim 6, wherein: the valve plate of the butterfly valve (15) is connected with the clamping seat (16) in a sealing way.