CN211975995U

CN211975995U - Turning plate type gas leakage-proof device

Info

Publication number: CN211975995U
Application number: CN202020289005.1U
Authority: CN
Inventors: 李良; 李增辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-20
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to a flap type gas leakage preventing device, which comprises a gas-liquid separation box and a water inlet pipe which penetrates into the gas-liquid separation box and is hermetically connected with the gas-liquid separation box, wherein the side wall of the gas-liquid separation box at least comprises an inclined section, the outer side surface of the inclined section is fixedly connected with an upwardly extending water outlet pipe, a water through hole which is communicated with the water outlet pipe and the gas-liquid separation box is arranged on the inclined section, and a flap valve corresponding to the water through hole is hinged on the inclined section; the one end rigid coupling that the inlet tube penetrated the gas-liquid separation case has the guiding tube of downward sloping, the lower extreme rigid coupling of guiding tube has the opening to cross the arc pipe in water hole, the top of arc pipe is located the rear side of flap valve plate below. The utility model discloses a setting up of flap valve realizes drainage and sealed switching, utilizes the characteristic that gaseous upwards flows, gathers the pressure that the back formed in the coal gas short time under, promotes the flap valve rotatory, forms cutting off to gas leakage fast, avoids appearing the gas leakage phenomenon.

Description

Turning plate type gas leakage-proof device

Technical Field

The utility model relates to a gas piping drainage facility technical field especially involves a turn over board-like coal gas and prevents leaking device.

Background

The coal gas contains certain moisture, the temperature of the coal gas is continuously reduced when the coal gas is conveyed in a pipeline, the moisture in the coal gas can be condensed and separated out, the coal gas contains impurities such as coal tar, cyanophenol and the like, so the coal gas has great corrosivity and toxicity, if the coal gas is not discharged, the pipeline and a valve can be seriously corroded, the pipe valve is easily damaged, an accident occurs, and the blockage is also caused, so the coal gas conveying is influenced. Usually, a water seal mode is adopted to avoid gas leakage during drainage, but the existing water seal structure has the phenomenon of sealing delay and still has the phenomenon of gas leakage.

Disclosure of Invention

The utility model provides a device is prevented leaking by flap gas to the not enough of prior art, realizes quick sealing through the action of flap valve to coal gas leakage appears when having avoided the gas conduit to drain.

The utility model is realized by the following technical scheme, a flap type coal gas leakage preventing device is provided, which comprises a gas-liquid separation box and a water inlet pipe which penetrates into the gas-liquid separation box and is hermetically connected with the gas-liquid separation box, the side wall of the gas-liquid separation box at least comprises an inclined section, the outer side surface of the inclined section is fixedly connected with an upwardly extending water outlet pipe, a water through hole which is communicated with the water outlet pipe and the gas-liquid separation box is arranged on the inclined section, and a flap valve corresponding to the water through hole is hinged on the inclined section; the one end rigid coupling that the inlet tube penetrated the gas-liquid separation case has the guiding tube of downward sloping, the lower extreme rigid coupling of guiding tube has the opening to cross the arc pipe in water hole, the top of arc pipe is located the rear side of flap valve plate below.

This scheme is in the use, the inlet tube communicates with gas piping's ware that drains, water in the pipeline is in proper order through the inlet tube, guiding tube and arc pipe inflow gas-liquid separation case, during normal drainage, the flap valve plate under the effect of counter weight with cross the water hole separation, water flows into the outlet pipe from crossing the water hole, the water level is lower and when there is the clearance between arc pipe top and the surface of water, because gaseous rebound, consequently, coal gas flows to the valve plate rear side after the arc pipe flows out, the coal gas short time is gathered certain degree and the atmospheric pressure that produces promotes the flap valve rotation, make the valve plate rotate to crossing the water hole and will cross the water hole and seal, avoid coal gas to pass through from crossing the water hole.

Preferably, the flap valve comprises a middle plate hinged with the inclined section through a transverse hinge shaft, a counterweight fixedly connected to the upper end of the middle plate and a valve plate fixedly connected to the lower end of the middle plate, and the valve plate is opposite to the water through hole. The flap valve of the optimized scheme is simple in structure, the setting of the counter weight meets the condition that when water is normally drained, the valve plate is separated from the water through hole, and when the gas pressure is increased, the gas pressure overcomes the effect of the counter weight, so that the valve plate is tightly attached to the water through hole.

And as optimization, a water passing pipe is fixedly arranged in the water passing hole in a penetrating manner, and one end of the water passing pipe extending to the gas-liquid separation box is matched with the valve plate of the flap valve. This optimization scheme is through setting up the water pipe, makes water pass through from the hole of water pipe, and in the lower extreme of water pipe extended the gas-liquid separation case, more convenient and valve plate laminating formation was sealed, has consequently improved the reliability of sealed between valve plate and the water pipe.

As the optimization, still include outer box and the overflow pipe of rigid coupling on outer box, gas-liquid separation case and outlet pipe all are located the outer box, outer box is worn out to the end of intaking of inlet tube, and the upper end of outlet pipe is less than the junction of overflow pipe and outer box. This optimization scheme is through setting up outer box for water that flows from the outlet pipe is kept in the outer box earlier, and the deposit of impurity is realized to the in-process of keeping in, and is more convenient to the processing of discharge water.

Preferably, the upper end of the water outlet pipe is provided with a sealing cover plate, and the sealing cover plate is hinged with the water outlet pipe through a horizontal hinge shaft. This optimization scheme is through setting up sealed apron, and when not having water to flow through in the outlet pipe, sealed apron seals the outlet pipe upper end under the dead weight effect, avoids forming the backward flow owing to the negative pressure appears, during normal drainage, will seal the apron by the flow of water and open.

Preferably, the bottom surface of the sealing cover plate is fixedly connected with a sealing rubber gasket. This optimization scheme has improved the leakproofness to the outlet pipe upper end through setting up sealed cushion, has further avoided negative pressure refluence phenomenon.

As optimization, the top of gas-liquid separation case sets firmly the test tube with the inside intercommunication of gas-liquid separation case, the upper end of test tube upwards wears out outer box and installs the check valve. According to the optimized scheme, the inspection is conveniently carried out when the pipeline is overhauled by arranging the detection valve, and accumulated coal gas is conveniently discharged so as to continuously realize pipeline drainage.

As optimization, the bottom of the gas-liquid separation box is fixedly provided with a blow-off pipe communicated with the inside of the gas-liquid separation box, and the lower end of the blow-off pipe downwards penetrates out of the outer box body and is provided with a blow-off valve. This optimization scheme is through setting up the blow off pipe at gas-liquid separation case, conveniently clears up the blowdown to gas-liquid separation case.

Preferably, a blow-off pipe provided with a blow-off valve is fixedly connected to the bottom of the outer box body. This optimization scheme is through setting up blow off pipe and blowoff valve on outer box, conveniently clears up the blowdown to outer box.

The utility model has the advantages that: the switching of drainage and sealing is realized through the setting of flap valve, utilizes the characteristic that gas flows upwards, under the pressure that forms after the coal gas is gathered in the short time, promotes the flap valve rotatory, forms the shutoff to gas leakage fast, avoids appearing the coal gas leakage phenomenon.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at I in FIG. 1;

shown in the figure:

1. the device comprises a water inlet pipe, a gas-liquid separation box, a 3 outer box, a 4 detection pipe, a 5 detection valve, a 6 overflow pipe, a 7 water outlet pipe, a 8 flap valve, a 9 water passing pipe, a 10 guide pipe, a 11 arc pipe, a 12 blow-off valve, a 13 blow-off pipe, a 14 sealing cover plate, a 15 sealing rubber mat.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1, a flap-type gas leakage-proof device comprises an outer box 3, a gas-liquid separation box 2, and a water inlet pipe 1 penetrating into the gas-liquid separation box and connected with the gas-liquid separation box in a sealing manner, wherein the gas-liquid separation box 2 is positioned in the outer box 3, the water inlet end of the water inlet pipe penetrates out of the outer box, and the water inlet pipe is connected with the outer box and the gas-liquid separation box in a sealing manner by welding. An overflow pipe 6 is fixedly connected to the outer side wall of the outer box body 3, and a funnel pipe is arranged below an outlet of the overflow pipe.

The lateral wall of gas-liquid separation case includes an oblique section, and this oblique section is located the lateral wall relative with the lateral wall at inlet tube place, and oblique section lateral surface rigid coupling has the outlet pipe 7 that upwards extends, and outlet pipe 7 all is located outer box 3, and the upper end of outlet pipe is less than the junction of overflow pipe and outer box.

The inclined section is provided with a water passing hole for communicating the water outlet pipe with the gas-liquid separation box, and the inclined section is also hinged with a flap valve 8 corresponding to the water passing hole. In order to facilitate guaranteeing the effect of cutting of valve plate, this embodiment wears to establish in the water hole and is fixed with water pipe 9, and water pipe 9 extends the one end of gas-liquid separation case and the valve plate adaptation of flap valve. When normal drainage, the valve plate is separated from the water passing pipe under the action of the balance weight, and water flows into the water outlet pipe from the inner hole of the water passing pipe.

The one end rigid coupling that inlet tube 1 penetrated the gas-liquid separation case has the guiding tube 10 of downward sloping, the lower extreme rigid coupling of guiding tube 10 has the opening to cross the arc pipe 11 in the water hole, the top of arc pipe is located the rear side of flap valve plate below, uses the direction of rivers in the inlet tube as preceding in this embodiment.

The flap valve includes through horizontal hinge and oblique section articulated intermediate lamella, rigid coupling in the counter weight of intermediate lamella upper end and rigid coupling in the valve plate of intermediate lamella lower extreme, the valve plate is relative with the water hole of crossing.

In order to prevent negative pressure backflow, this embodiment is equipped with sealed apron 14 in the upper end of outlet pipe, sealed apron is articulated with the outlet pipe through horizontal hinge, and the bottom surface rigid coupling of sealed apron 14 has sealed cushion 15, and the sealed cushion of this embodiment is the fluorine cushion, and thickness is 3 mm. When water flows out of the water outlet pipe, the sealing cover plate is pushed open by the flowing water, and when no water passes through the water outlet pipe, the sealing cover plate is closed under the action of self weight to seal the upper end of the water outlet pipe.

The top of gas-liquid separation case sets firmly the test tube 4 with the inside intercommunication of gas-liquid separation case, the upper end of test tube 4 upwards wears out outer box and installs check valve 5. When the pipeline fault is eliminated, whether accumulated gas exists or not is determined through the detection valve to close the flap valve, and after the flap valve is closed by the gas, the gas in the gas-liquid separation box is released through the detection valve to continuously realize pipeline drainage.

And a drain pipe 13 communicated with the inside of the gas-liquid separation box is fixedly arranged at the bottom of the gas-liquid separation box, and the lower end of the drain pipe 13 downwards penetrates out of the outer box body and is provided with a drain valve 12. The bottom of the outer box body is also fixedly connected with a drain pipe provided with a drain valve.

During the use, with the end of intaking of inlet tube and the ware intercommunication that drains of gas piping, water in the gas piping flows into gas-liquid separation case through the inlet tube in proper order, guiding tube and arc pipe, during normal drainage, the flap valve plate separates with the water pipe under the effect of counter weight, water flows into the outlet pipe from the water pipe hole, when the water level is lower and there is the clearance between arc pipe top and the surface of water, because gas has the characteristic of rebound, consequently gas flows to the valve plate rear side after the arc pipe flows out, the gas short time is gathered to the certain degree and the atmospheric pressure that produces promotes the flap valve and is rotated, it is sealed with the water pipe fast, block coal gas and pass through, thereby gas leakage has been avoided.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. A panel turnover type gas leakage prevention device is characterized in that: the gas-liquid separation device comprises a gas-liquid separation box (2) and a water inlet pipe (1) penetrating into the gas-liquid separation box and connected with the gas-liquid separation box in a sealing manner, wherein the side wall of the gas-liquid separation box at least comprises an inclined section, the outer side surface of the inclined section is fixedly connected with an upwardly extending water outlet pipe (7), the inclined section is provided with a water through hole communicated with the water outlet pipe and the gas-liquid separation box, and the inclined section is also hinged with a flap valve (8) corresponding to the water through hole;

the one end rigid coupling that inlet tube (1) penetrated the gas-liquid separation case has guiding tube (10) of downward sloping, the lower extreme rigid coupling of guiding tube (10) has opening towards the arc pipe (11) in water hole, the top of arc pipe is located the rear side of flap valve plate below.

2. A flap-type gas leakage prevention device according to claim 1, wherein: the flap valve comprises a middle plate hinged with the inclined section through a transverse hinge shaft, a counterweight fixedly connected to the upper end of the middle plate and a valve plate fixedly connected to the lower end of the middle plate, and the valve plate is opposite to the water passing hole.

3. A flap-type gas leakage prevention device according to claim 1, wherein: a water passing pipe (9) is fixedly arranged in the water passing hole in a penetrating mode, and one end, extending to the gas-liquid separation box, of the water passing pipe (9) is matched with a valve plate of the flap valve.

4. A flap-type gas leakage prevention device according to claim 1, wherein: still include outer box (3) and overflow pipe (6) of rigid coupling on outer box, gas-liquid separation case (2) and outlet pipe (7) all are located outer box (3), outer box is worn out to the end of intaking of inlet tube, and the upper end of outlet pipe is less than the junction of overflow pipe and outer box.

5. A flap-type gas leakage prevention device according to claim 4, wherein: and a sealing cover plate (14) is arranged at the upper end of the water outlet pipe, and the sealing cover plate is hinged with the water outlet pipe through a horizontal hinge shaft.

6. A flap-type gas leakage prevention device according to claim 5, wherein: and a sealing rubber gasket (15) is fixedly connected to the bottom surface of the sealing cover plate (14).

7. A flap-type gas leakage prevention device according to claim 4, wherein: the top of gas-liquid separation case sets firmly detecting tube (4) with the inside intercommunication of gas-liquid separation case, outer box is upwards worn out and is installed check valve (5) to the upper end of detecting tube (4).

8. A flap-type gas leakage prevention device according to claim 4, wherein: the bottom of the gas-liquid separation box is fixedly provided with a drain pipe (13) communicated with the inside of the gas-liquid separation box, and the lower end of the drain pipe (13) downwards penetrates out of the outer box body and is provided with a drain valve (12).

9. A flap-type gas leakage prevention device according to claim 4, wherein: the bottom of the outer box body is fixedly connected with a drain pipe provided with a drain valve.