CN2713250Y - Water-sealed valve for gas conduit - Google Patents
Water-sealed valve for gas conduit Download PDFInfo
- Publication number
- CN2713250Y CN2713250Y CN 200420022383 CN200420022383U CN2713250Y CN 2713250 Y CN2713250 Y CN 2713250Y CN 200420022383 CN200420022383 CN 200420022383 CN 200420022383 U CN200420022383 U CN 200420022383U CN 2713250 Y CN2713250 Y CN 2713250Y
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- valve
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- leakage
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Abstract
The utility model relates to a water-sealed valve for a gas conduit, which solves the defects that the gas in the existing water-sealed valve is easy to leak off and gas explosion accidents are caused. The middle section of the water discharging pipe is provided with a communication valve which is connected with a three-way water discharging pipe which is connected with a leakage-proof device and the communication valve of the leakage-proof device, and the leakage-proof device is connected with a water outlet pipe. The inner chamber wall of the leakage-proof device is welded with a ladder-shaped annular plate made of a steel plate; the internal diameter of the ladder-shaped annular plate is provided with a sealing ring, and the bottom edge of the ladder-shaped annular plate is welded with a special-shaped connecting component which is provided with a valve plate. The upper part of the main body of the leakage-proof device is provided with the contrasting device of the cover plate; the inner chamber of the contrasting device of the cover plate is provided with an indicating rod, and the upper end and the lower end of the indicating rod are provided with metal spheres which can be rotatablely connected. A water feeding control valve and the cutting water supplementing valve of the water sealing are respectively connected to the gas leakage-proof device with the water level control and the main body of the water-sealing cutting valve, and an irradiating pipe is provided with an extinguishing device. The utility model is mainly served as a water-sealed valve which can cut off the gas when the pipeline is maintained.
Description
Technical field
The utility model relates to a kind of piped gas blocking device, particularly at the built on stilts gas pipe line that lays of smelter, is used to cut off " V-type " water seal cut-off valve of coal gas in the pipeline.
Background technique
Gas pipe line water seal cut-off valve, in the large-sized gas pipeline system, can play the effect of good water shutoff coal gas, particularly when gas pipe line maintenance or other operations, can cut off coal gas in fast and reliable ground, and can prevent that water-sealing valve from causing gas leakage and pollution in the process of water shutoff according to effective water level control moisturizing of water seal.But, its shortcoming is, the water seal cut-off valve is when normal ventilating coal gas, because the communication valve that is provided with is coupled logical, when gas leakage took place, a part of coal gas was sealed gas by the internal structure of water replenishing device, and the communication valve that another part coal gas passes through to open wide is to external leakage, so just lose moisturizing function and gas leakage preventing function, and caused the coal gas accident harm.Chinese patent " gas pipe line gas leakage preventing device " ZL 01 239576.5 sees Fig. 1, the 1st, and the water seal cut-off valve, the 2nd, last blowdown shut-off means, the 3rd, vertical drain pipe, the 4th, down blow shut-off means, the 5th, displacement can, the 6th, waste pipe, the 7th, communication valve, the 8th, the gas leakage preventing device of band control water level, the 9th, water supply control valve, the 10th, exhaust stack, the 11st, water-feeding valve is cut off in water seal.The working principle of water seal shut-off means is; When implementing shutoff coal gas; On, down blow shut-off means 2,4 in open position, communication valve 7 cuts out, open water supply control valve 9 and water seal and cut off water-feeding valve 11, water shutoff enters in water seal cut-off valve 1 " v " the type water-sealing valve cavity, when the water shutoff waste pipe 6 of flowing through, reach the effective height of H1, realized the purpose of water seal shutoff coal gas, cut off coal gas for guaranteeing effective water shutoff, be provided with the control water level of the gas leakage preventing device 8 of being with control water level and prevent the leakage gas function, when coal gas one end pressure fluctuation or condensed water increase, a part of water flows out by the gas leakage preventing device 8 of band control water level.Be lower than the height of setting when water level, the gas leakage preventing device 8 meeting automatic water supplements of band control water level, in case water-sealing valve water level breakdown leakage coal gas, the automatic closing control gas leakage of gas leakage preventing device 8 meetings of band control water level, simultaneously also can automatic water supplement, until to effective water level.
When the water-sealing valve normal ventilation, the position that water-feeding valve 11 is being closed is cut off in water supply control valve 9 and water seal, the gas leakage preventing device 8 of band control water level is in automatic closed position, communication valve 7 is being opened unimpeded state, the water level of coal gas drainer is at the height of H2, its working state is, pipeline condensed water when ventilating coal gas can be discharged automatically by communication valve 7, in case the pressure surge in the pipeline, can be with the high-destruction of the water level H2 in the hydathode, make the H2 effective height be reduced to coal gas and overflow, coal gas leaks by communication valve 7, and this is a problem to be solved in the utility model.The V-type water-sealing valve is provided with exhaust stack 11, after cutting off coal gas, need to operate the exhaust stack shut-off means, owing to often use or corrosion, cause shut-off means tight and can't judge the gas leakage degree, meet Thunderstorm Weather exhaust stack is caught fire this also is a problem to be solved in the utility model.It is a good technology that ZL 01 2 39576.5 uses in gas pipeline drainer, and it can effectively check gas leakage when hydathode breaks down, and this is confirmed by practice.Use but this technology is moved in the water-sealing valve, just seem inapplicable, because it reaches control gas leakage by float and internal mechanism.Another shortcoming of water-sealing valve is, the coal gas diffusion pipe that is provided with, because often operation makes valve closing not tight in system, cause gas leakage to meet Thunderstorm Weather, cause that it also is recurrent that the exhaust stack leakage gas catches fire, it is unexpected that throttle down can cause taking place the major accident of back draft in processing procedure, untimely fire extinguishing can lead to the accident that other altitude plant burns again, the high-altitude fire extinguishing is again a breakneck thing, often all be to put out a fire, in accident treatment, incured loss through delay opportunity by professional fire department.
Be necessary to invent a kind of safe coal gas water seal cut-off valve of research for solving these real drawbacks of coal gas water-sealing valve, can thinking, improve the use function of gas pipe line equipment with this.
Summary of the invention
The utility model technical issues that need to address are that gas pipe line water seal cut-off valve also can play when normal ventilation and prevent gas leakage, can conveniently put out a fire when exhaust stack catches fire.The utility model provides a kind of gas pipe line water-sealing valve, and original water-sealing valve structure is improved, and makes it reach water-sealing valve when not water shutoff, runs into problems such as gas pressure fluctuation, still can the interior condensed water and the effect that prevents gas leakage of discharge conduit.
The technical measures that the utility model is taked are basic original water-sealing valve technology of using, a kind of a kind of device that more simply can control gas leakage can also draining of design in the effective height of water-sealing valve draining hermetically sealed can only, exhaust port at the draining hermetically sealed can is provided with a gas leakage preventing device, in the outlet of leakage preventer, connect outlet pipe, valve is equipped with in bottom at leakage preventer, can play the reliable draining behind the water-sealing valve shutoff coal gas.
Another technical measures are, be provided with 90 ° of symmetries of ring pipe in the bottom of exhaust stack fire-fighting equipments are installed, and are furnished with rapid pipe joint, and the enforcement that can be connected with nitrogen rapidly when exhaust stack catches fire is put out a fire.
Effect of the present utility model is; The mechanism of water-sealing valve is under the situation of normally opening coal gas, and in a single day hydathode breaks down or system pressure fluctuation etc. also can be checked the leakage of coal gas by mechanical device is set.
Another effect; The trapezoidal annular plate of leakage preventer and trapezoidal valve plate play good sealing effect under the effect of seal ring.
The effect that special-shaped articulated elements is set is; Valve plate can be good at keeping the aperture of 45 by special-shaped articulated elements, leaves the pitch-row that valve plate is freely moved in the joint of special-shaped articulated elements and valve plate, and its effect is that valve plate reaches better sealing.
The characteristics according to device that are provided with are; Use the simple structure of cover plate attached cavity, can seal the condensed water of gas pipe line, can seal the smell of gas condensed water again, the pollution that controls environment.
The effect of the indicating arm that is provided with is; The installation that can spin of the Metal Ball at indicating arm two ends is in the use condition that can reach the demonstration leakage preventer according to being used of device and valve plate down easily.
The utility model also has an effect to be; At exhaust stack fire-fighting equipment is housed, when exhaust stack catches fire, can conveniently puts out a fire.
The design of the built on stilts gas pipe line water seal cut-off valve of setting up of iron and steel enterprise that the utility model is perfect, it has fundamentally solved water seal cut-off valve leakage gas problem, makes this water-sealing valve use the field broad, more safe and reliable more.
Description of drawings
Fig. 1 is original water seal cut-off valve figure
Fig. 2 is the utility model structural representation figure
Structure for amplifying schematic representation when Fig. 3 is the sealing of the trapezoidal valve plate of Fig. 2 " a portion "
Fig. 4 is Fig. 2 " a portion " structure for amplifying schematic representation when trapezoidal valve plate is opened
Fig. 5 is Fig. 3 plan view
Fig. 6 is Fig. 4 " B portion " enlarged diagram
Fig. 7 is Fig. 2 " c portion " amplification sectional view
Embodiment
Embodiment's explanation with reference to accompanying drawing 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7
In the drawings, 1. the water seal cut-off valve is 2. gone up the blowdown shut-off means, 3. vertical drain pipe, 4. down blow shut-off means, 5. displacement can, 6. waste pipe, 7. communication valve, the 8. gas leakage preventing device of band control water level, 9. water supply control valve, 10. exhaust stack, water-feeding valve is cut off in 11. water seals, 12. leakage preventer, the trapezoidal valve plate of 12-1., 12-2. seal ring, 12-3. according to device, 12-4. indicating arm, the trapezoidal ring flat-plate of 12-5., 12-6. special-shaped link, 12-7. sealing water, 13. leakage preventer communication valves, 14. outlet pipes, 15. threeway waste pipe, 16 fire-fighting equipments, 16-1. symmetry ring pipe, 16-2. rapid pipe joint.
Water seal cut-off valve 1 is installed on the gas pipe line, water-sealing valve set on, down blow shut-off means 2,4 connect vertical drain pipe 3, displacement can 5 cavitys that vertical drain pipe 3 is inserted into, the waste pipe vertically upward 6 that is provided with at the other end of displacement can 5, the gas leakage preventing device 8 of band control water level is housed at the top of waste pipe 6, the gas leakage preventing device 8 of band control water level connects outlet pipe 14, at waste pipe 6 intermediate sections communication valve 7 being housed is connected with threeway waste pipe 15, threeway waste pipe 15 connects leakage preventer 12 and leakage preventer communication valve 13, leakage preventer 12 is connected with outlet pipe 14, leakage preventer 12 internal chamber walls are welded with the trapezoidal ring flat-plate 12-5 that steel plate is made, trapezoidal ring flat-plate internal diameter is provided with seal ring 12-2, bottom margin at trapezoidal ring flat-plate is welded with special-shaped link 12-6, link is equipped with valve plate 12-1, the cover plate that is provided with on the body top of leakage preventer 12 is according to device 12-3, according to the device inner chamber indicating arm 12-4 is housed, indicating arm is equipped with the metal ball that can spin in two ends up and down, set water supply control valve 9 and water seal cut off water-feeding valve 11 be connected to the band control water level gas leakage preventing device 8 and water seal cut-off valve 1 body on, water seal cut-off valve body is provided with exhaust stack 10, fire-fighting equipment 16 is installed on the exhaust stack, symmetry ring pipe 16-1 is installed in the exhaust stack outside, and ring pipe is equipped with the rapid pipe joint 16-2 of quick connection nitrogen.
Operating process of the present utility model is; When water seal cut-off valve 1 is implemented shutoff coal gas, on, down blow shut-off means 2,4 in open position, communication valve 7 and leakage preventer communication valve 13 are closed, open water seal and cut off water-feeding valve 11 water-filling in water seal cut-off valve 1, water seal cut-off valve water level is behind the position of H1, reach water seal and cut off the purpose of coal gas, water supply control valve 9 is opened, make the water in the water seal cut-off valve keep overflow, overflow water flows to outlet pipe 14 discharges by the gas leakage preventing device 8 of band control water level, because gas pipe line pressure is along with system change produces fluctuation, a part of water is washed out, make the effective height of the interior water level reduction of water seal cut-off valve less than H1, gas leakage preventing device 8 actions that the band control water level is set drive water valve and carry out moisturizing, mend the height controller action of H1, close water valve and open the process that the gas leakage preventing device 8 of band control water level makes its overflow and finishes water-sealing valve cut-out coal gas.
When water seal cut-off valve 1 discharges water when opening coal gas, close water supply control valve 9, opening communication valve 7 and leakage preventer communication valve 13 emits water, water in the water seal cut-off valve is put to the height of H2 and is closed leakage preventer communication valve 13, the gas pipe line water-sealing valve is open-minded, and keep the condensed water in the coal gas by 2,3,4,5,6,7 drainage mechanism is discharged in the gas leakage preventing device 12, condensed water is discharged by outlet pipe 14, set trapezoidal valve plate 12-1 is under the effect of special-shaped articulated elements 12-6, shown in " B portion ", make trapezoidal valve plate remain on 45 ° aperture, condensed water 12-7 can effectively discharge, and indicating arm 12-4 passes the cavity of cover plate according to device 12-3 in addition, and the spheroid of bottom one end arbitrarily rides on the valve plate, top one end spheroid freely rides over the end greater than the cavity internal diameter according to device, and its effect is; The alert leakage preventer is in proper functioning, when the effective height of generation systems overpressure or generation fluctuation H2 suffers that destruction makes water overflow gas leakage, trapezoidal valve plate 12-1 upwards moves rapidly under the effect of gas pressure and makes its annular plate sealing, reach the purpose that prevents leakage gas, for alert indicating arm 12-4 thereupon upwards the action caution this install cisco unity malfunction.
Another embodiment is; On the shut-off means top of exhaust stack with symmetrical ring pipe 16-1 welded and installed on tube wall, need not close shut-off means when exhaust stack catches fire, rapid pipe joint 16-2 is connected the purpose that just reaches rapid fire extinguishing on the nitrogen tube.
Claims (2)
1, a kind of gas pipe line water-sealing valve, the water seal cut-off valve is installed on the gas pipe line, water-sealing valve set on, the down blow shut-off means connects vertical drain pipe, the displacement can cavity that vertical drain pipe is inserted into, the waste pipe vertically upward that is provided with at the other end of displacement can, water seal is cut off water-feeding valve and is connected with water supply control valve by pipeline, the gas leakage preventing device of band control water level is housed at the top of waste pipe, the gas leakage preventing device of band control water level connects outlet pipe, be connected with communication valve between waste pipe and the outlet pipe, water seal cut-off valve body is provided with exhaust stack, it is characterized in that, at the waste pipe intermediate section communication valve being housed is connected with the threeway waste pipe, the threeway waste pipe connects leakage preventer and leakage preventer communication valve, leakage preventer is connected with outlet pipe, the leakage preventer internal chamber wall is welded with the trapezoidal ring flat-plate that steel plate is made, trapezoidal ring flat-plate internal diameter is provided with seal ring, bottom margin at trapezoidal ring flat-plate is welded with special-shaped link, link is equipped with valve plate, the cover plate that is provided with on the body top of leakage preventer is according to device, according to the device inner chamber indicating arm is housed, indicating arm up and down two ends is equipped with the metal ball that can spin, set water supply control valve and water seal cut off water-feeding valve be connected to the band control water level gas leakage preventing device and water seal cut-off valve body on.
2, a kind of gas pipe line water-sealing valve according to claim 1, it is characterized in that fire-fighting equipment is installed, and fire-fighting equipment is made of symmetrical ring pipe and rapid pipe joint on exhaust stack, the symmetry ring pipe is installed in the exhaust stack outside, and ring pipe is equipped with the rapid pipe joint of quick connection nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022383 CN2713250Y (en) | 2004-04-29 | 2004-04-29 | Water-sealed valve for gas conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022383 CN2713250Y (en) | 2004-04-29 | 2004-04-29 | Water-sealed valve for gas conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713250Y true CN2713250Y (en) | 2005-07-27 |
Family
ID=34870557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022383 Expired - Lifetime CN2713250Y (en) | 2004-04-29 | 2004-04-29 | Water-sealed valve for gas conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713250Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600459A (en) * | 2016-01-04 | 2016-05-25 | 江苏凯弘新能源管理有限公司 | Explosion-proof and blowout-proof device of coal powder storage tank and powder feeding technological process |
| CN112879608A (en) * | 2021-02-04 | 2021-06-01 | 广东韶钢松山股份有限公司 | Partition mechanism and partition device |
| CN113251319A (en) * | 2021-04-29 | 2021-08-13 | 广东韶钢松山股份有限公司 | Coal gas drainage device and use method thereof |
-
2004
- 2004-04-29 CN CN 200420022383 patent/CN2713250Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600459A (en) * | 2016-01-04 | 2016-05-25 | 江苏凯弘新能源管理有限公司 | Explosion-proof and blowout-proof device of coal powder storage tank and powder feeding technological process |
| CN112879608A (en) * | 2021-02-04 | 2021-06-01 | 广东韶钢松山股份有限公司 | Partition mechanism and partition device |
| CN113251319A (en) * | 2021-04-29 | 2021-08-13 | 广东韶钢松山股份有限公司 | Coal gas drainage device and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140429 Granted publication date: 20050727 |