CN210662309U

CN210662309U - Protection device for gas emergency cut-off in production practice

Info

Publication number: CN210662309U
Application number: CN201921664646.4U
Authority: CN
Inventors: 张小明; 李伟
Original assignee: Xinjiang Bolanke Fine Chemical Co ltd
Current assignee: Xinjiang Bolanke Fine Chemical Co ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-02
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a protection device that is used for coal gas promptly to cut off in production practice, including the gas holder, the coal gas outlet has been seted up at gas holder one side top, the gas holder bottom of gas outlet below is connected with the evacuation pipe, evacuation pipe one end is connected with the governing valve, governing valve one end is connected with the outlet pipe, the gas holder top has connected gradually moisturizing pipe, diffuse pipe and intake pipe from one side of coal gas outlet to the opposite side, moisturizing pipe, diffuse pipe and intake pipe top all are connected with the ooff valve, the middle part of gas holder opposite side runs through the welding and has balanced inner tube, compares with prior art, the beneficial effects of the utility model: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization only needs invest in a small amount of fund, can satisfy the safety need completely, when overhauing the operation, has avoided dismantling work such as large-scale flange and valve moreover, has avoided moving fire to replace simultaneously and has influenced whole production.

Description

Protection device for gas emergency cut-off in production practice

Technical Field

The utility model relates to a coal gas application technology field specifically is a protection device that is used for coal gas promptly to cut off in the production practice.

Background

In the process of actual production, the main valve is a large-scale gas emergency cut-off valve according to the prior art, but the valve is found to be expensive through years of use, and importantly after long-time use, the iron fillings of intraductal gas corrosion can block in the trip valve, lead to unable whole sealed, give operating personnel to be the trip valve of closed condition, and it still has the gas leakage in fact, and stealthy risk is bigger like this.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protection device that is used for coal gas emergency cut-off in production practice can effectively solve and propose in above-mentioned background art in the actual production process, the main valve has all been according to large-scale coal gas emergency cut-off valve according to prior art, nevertheless through the discovery of using for many years, not only the valve is expensive, the important back of using for a long time, intraductal coal gas corruption's iron fillings can block in the trip valve, lead to unable whole sealings, be the trip valve of closed condition for operating personnel, it still has gas leakage in fact, stealthy more big problem of risk like this.

In order to achieve the above object, the utility model provides a following technical scheme: a protection device for gas emergency cut-off in production practice comprises a gas storage tank, wherein a gas outlet is formed in the top of one side of the gas storage tank, an emptying pipe is connected to the bottom of the gas storage tank below the gas outlet, one end of the emptying pipe is connected with an adjusting valve, and one end of the adjusting valve is connected with a water outlet pipe;

the top end of the gas storage tank is sequentially connected with a water replenishing pipe, a bleeding pipe and a gas inlet pipe from one side to the other side of the gas outlet, and the top ends of the water replenishing pipe, the bleeding pipe and the gas inlet pipe are all connected with switch valves;

the middle part of gas holder opposite side runs through the welding and has balanced inner tube, balanced inner tube bottom is connected with the full flow inner tube, the one end at balanced inner tube top passes through the connector and links to each other with balanced outer tube, the one end of balanced outer tube links to each other with the full flow outer tube, the full flow outer tube is placed at the full flow jar inboard.

Preferably, the switch valve top on moisturizing pipe top is connected with the return bend that admits air, the switch valve top on diffuse pipe top is connected with the return bend that diffuses, the switch valve top on intake pipe top is connected with the moisturizing return bend.

Preferably, the air inlet elbow, the diffusion elbow and the water replenishing elbow are sequentially spaced by ninety degrees.

Preferably, the switch valve is NKV switch valve.

Preferably, the full flow tank height is 0.7 m.

Preferably, the gas holder height is 1.1 meter, the full current inner tube is 0.1 meter apart from the gas holder bottom height, full current inner tube, balanced outer tube and full current outer tube pipe diameter are DN250, full current inner tube and full current outer tube length are 0.5 meter, the full current outer tube is 0.1 meter apart from the full current bottom of the tank, moisturizing pipe and moisturizing return bend internal diameter are DN150, diffuse the pipe and diffuse the return bend internal diameter and be DN50, the intake pipe is DN300 with the return bend internal diameter of admitting air, evacuation pipe and outlet pipe internal diameter are DN 50.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of scientific and reasonable structure, convenient and safe use, only need invest in a small amount of funds, can satisfy the safety requirement completely, and when overhauing the operation, avoid dismantling work such as large-scale flange and valve, simultaneously avoid the exchange of fire to influence whole production, according to the calculation of coal gas admission pressure 4Kpa, the pressure that full flow outer tube position must be greater than 400mm water column can hold the admission pressure, simultaneously the coal gas export must be more than full flow mouth 200mm, just avoid water to enter the coal gas outlet, install the well calculated ooff valve on the moisturizing pipe, its pipe diameter size calculates according to the volume of water seal diameter and full flow mouth height of water, generally can mend water to full flow mouth within 10s and overflow, the pipeline is bigger and faster, the faster seals coal gas, when normally using, the water seal is emptied, avoid the hosepipe to enter the tube furnace and influence the combustion state, however, in order to seal the gas flowing away from the full-flow outer pipe, the full-flow port must be sealed by adopting a water column of 500 mm;

in special cases, the gas is required to be stopped emergently or the gas is required to be completely separated from the main pipe, the quick-opening valve can be opened in the control chamber, and water is filled to the liquid level of 500mm of the full-flow outer pipe within a few seconds, so that the separation effect can be realized.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic top view of the present invention;

reference numbers in the figures: 1. a gas storage tank; 2. a gas outlet; 3. emptying the pipe; 4. adjusting a valve; 5. a water outlet pipe; 6. a water replenishing pipe; 7. a diffusing pipe; 8. an air inlet pipe; 9. an on-off valve; 10. an air inlet bent pipe; 11. d, diffusing the bent pipe; 12. a water replenishing bent pipe; 13. a full flow inner pipe; 14. balancing the inner pipe; 15. a connector; 16. balancing the outer tube; 17. a full flow outer tube; 18. a full flow tank.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model provides a technical solution, a protection device for gas emergency cut-off in production practice, comprising a gas storage tank 1, a gas outlet 2 is arranged at the top of one side of the gas storage tank 1, a emptying pipe 3 is connected to the bottom of the gas storage tank 1 below the gas outlet 2, one end of the emptying pipe 3 is connected with a regulating valve 4, and one end of the regulating valve 4 is connected with a water outlet pipe 5;

the top end of the gas storage tank 1 is sequentially connected with a water supplementing pipe 6, a diffusing pipe 7 and a gas inlet pipe 8 from one side to the other side of the gas outlet 2, and the top ends of the water supplementing pipe 6, the diffusing pipe 7 and the gas inlet pipe 8 are all connected with a switch valve 9;

the middle part of 1 opposite side of gas holder runs through the welding and has balanced inner tube 14, and balanced inner tube 14 bottom is connected with full flow inner tube 13, and the one end at balanced inner tube 14 top passes through connector 15 and links to each other with balanced outer tube 16, and the one end of balanced outer tube 16 links to each other with full flow outer tube 17, and full flow outer tube 17 is placed at full flow jar 18 inboardly.

In order to connect the top end of the switch valve 9 at the top end of the water replenishing pipe 6 with the air inlet elbow 10, connect the top end of the switch valve 9 at the top end of the bleeding pipe 7 with the bleeding elbow 11, connect the top end of the switch valve 9 at the top end of the air inlet pipe 8 with the water replenishing elbow 12, which is convenient for connecting the pipelines, the orientations of the air inlet elbow 10, the bleeding elbow 11 and the water replenishing elbow 12 are separated by ninety degrees in sequence, which can prevent the air inlet elbow 10, the bleeding elbow 11 and the water replenishing elbow 12 from being too close to each other, thereby being inconvenient for normal installation,

the switch valve 9 is NKV switch valve, thereby realize the break-make of governing valve 4, for normal standardized production, the gas holder 1 height is 1.1 meters, full flow inner tube 13 is 0.1 meters apart from 1 bottom height of gas holder, full flow inner tube 13, balanced inner tube 14, balanced outer tube 16 and full flow outer tube 17 pipe diameter are DN250, full flow inner tube 13 and full flow outer tube 17 length are 0.5 meters, full flow outer tube 17 is 0.1 meters apart from the bottom of full flow jar 18, moisturizing pipe 6 and moisturizing return bend 12 internal diameter are DN150, diffuse pipe 7 and diffuse return bend 11 internal diameter are DN50, intake pipe 8 and intake elbow 10 internal diameter are DN300,

evacuation pipe

3 and 5 internal diameter of outlet pipe are DN50, full flow jar 18 height is 0.7m, thereby be convenient for normal pressurize.

The utility model discloses a theory of operation and use flow: the method can completely meet the safety requirement only by investing a small amount of capital, avoids the work of disassembling large flanges and valves and the like during maintenance operation, simultaneously avoids the influence of fire replacement on the whole production, the calculation is carried out according to the gas inlet pressure of 4Kpa, the position of the full flow outer pipe 17 must be larger than the pressure of 400mm water column to hold the gas inlet pressure, meanwhile, the gas outlet 2 must be higher than the full flow port by more than 200mm to prevent water from entering the gas outlet 2, the calculated switch valve 9 is arranged on the water replenishing pipe 6, the pipe diameter size is calculated according to the volume of the water seal diameter and the height of the full flow port, the water can be replenished to the full flow port to overflow generally within 10s, the larger the pipe is, the faster the coal gas is sealed, the water seal is emptied when the water is normally used, the water is prevented from entering the pipe furnace to influence the combustion state, but in order to seal the coal gas from flowing away from the full flow outer pipe, the full flow port is required to be sealed by adopting a water column of 500 mm;

inject into coal gas through the return bend that admits air 10, coal gas in the return bend that admits air 10 passes through the ooff valve 9 and gets into in the gas holder 2 behind the intake pipe 8, special cases need promptly stop gas or need cut off coal gas and house steward completely, can open quick-opening valve 9 in the control room, through moisturizing return bend 17 injected water in a few seconds, fill up water to the liquid level of full flow outer tube 500mm, can realize cutting off the effect, convenient and safe, and at last through governing valve 4 with gas holder 1 in the water source discharge can.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A protection device for gas emergency shut-off in production practice, characterized in that: the gas storage tank comprises a gas storage tank (1), wherein a gas outlet (2) is formed in the top of one side of the gas storage tank (1), an emptying pipe (3) is connected to the bottom of the gas storage tank (1) below the gas outlet (2), one end of the emptying pipe (3) is connected with an adjusting valve (4), and one end of the adjusting valve (4) is connected with a water outlet pipe (5);

the top end of the gas storage tank (1) is sequentially connected with a water replenishing pipe (6), a diffusing pipe (7) and a gas inlet pipe (8) from one side to the other side of the gas outlet (2), and the top ends of the water replenishing pipe (6), the diffusing pipe (7) and the gas inlet pipe (8) are all connected with a switch valve (9);

the middle part of gas holder (1) opposite side runs through the welding and has balanced inner tube (14), balanced inner tube (14) bottom is connected with full flow inner tube (13), the one end at balanced inner tube (14) top is passed through connector (15) and is linked to each other with balanced outer tube (16), the one end and the full flow outer tube (17) of balanced outer tube (16) link to each other, full flow outer tube (17) are placed at full flow jar (18) inboardly.

2. A protection device for gas emergency cut-off in production practice according to claim 1, characterized in that the top end of the switch valve (9) at the top end of the water replenishing pipe (6) is connected with an air inlet elbow (10), the top end of the switch valve (9) at the top end of the bleeding pipe (7) is connected with a bleeding elbow (11), and the top end of the switch valve (9) at the top end of the air inlet pipe (8) is connected with a water replenishing elbow (12).

3. A protection device for gas emergency shut-off in production practice according to claim 2, characterized in that the orientation of the inlet elbow (10), the blow-off elbow (11) and the water-replenishing elbow (12) are in turn ninety degrees apart.

4. A protection device for gas emergency shut-off in production practice according to claim 1, characterized in that the on-off valve (9) is an NKV on-off valve.

5. A protection device for gas emergency shut-off in production practice according to claim 1, characterized in that the full flow tank (18) has a height of 0.7 m.

6. A protection device for gas emergency cut-off in production practice according to claim 2, characterized in that the height of the gas storage tank (1) is 1.1 m, the height of the full flow inner pipe (13) from the bottom end of the gas storage tank (1) is 0.1 m, the pipe diameters of the full flow inner pipe (13), the balance inner pipe (14), the balance outer pipe (16) and the full flow outer pipe (17) are DN250, the lengths of the full flow inner pipe (13) and the full flow outer pipe (17) are 0.5 m, the length of the full flow outer pipe (17) from the bottom end of the full flow tank (18) is 0.1 m, the inner diameters of the water replenishing pipe (6) and the water replenishing elbow (12) are DN150, the inner diameters of the bleeding pipe (7) and the bleeding elbow (11) are DN50, the inner diameters of the gas inlet pipe (8) and the gas inlet elbow (10) are DN300, and the inner diameters of the bleeding pipe (3) and the water outlet pipe (5) are DN 50.