CN219510610U - Gas water seal device - Google Patents
Gas water seal device Download PDFInfo
- Publication number
- CN219510610U CN219510610U CN202320452147.9U CN202320452147U CN219510610U CN 219510610 U CN219510610 U CN 219510610U CN 202320452147 U CN202320452147 U CN 202320452147U CN 219510610 U CN219510610 U CN 219510610U
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- valve
- pipeline
- water seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a gas water seal device, which relates to the field of water seals and comprises a gas water seal bent pipe, a water supply pipe and a water discharge pipe; the water supply pipe is communicated with the upper end of the gas water seal bent pipe, and the water discharge pipe is communicated with the bottom end of the gas water seal bent pipe; the water supply pipe is provided with a first cut-off valve, a check valve, a water seal and a second cut-off valve; the upper end of the drain pipe is provided with a third cut-off valve, the bottom end of the drain pipe is provided with a drain valve, and the lower section of the drain pipe is communicated with a leakage-proof drain pipeline; the top end of the annular water pipeline of the leakage-proof drainage pipeline is higher than or level with the top end of the gas water seal elbow; the top end of the annular water pipeline is provided with a ventilation valve, the bottom end of the annular water pipeline is communicated with a drainer, and the drainer is communicated with a leakage-proof device; and a fourth cut-off valve is arranged on the pipeline between the connecting point of the annular water pipeline and the drain pipe and the connecting point of the annular water pipeline and the drainer. The utility model can solve the problems of large investment, more configuration of the drainer, easy increase of accident rate and large use limitation of the existing gas water seal device.
Description
Technical Field
The utility model relates to the technical field of water seal water supply and drainage systems, in particular to a water seal device for a coal gas water seal.
Background
The water seal is a common partition device of the gas system, and has the advantages of investment saving and difficult fault occurrence. When the water seal partition device is used as a part of a pipeline in normal operation, water is filled into the water supply pipe when the water seal partition device is required to form water seal to partition coal gas, and the water seal is formed on the U-shaped or V-shaped bent pipe to partition the coal gas. In normal operation, the bottom of the water seal is the lowest point of the pipeline, and a drainage pipeline and a drainer are required to be designed according to normal pipeline drainage; when the water seal is formed, an overflow pipe is required to be arranged for the water seal to ensure that the height of the water seal is stable at a specified height. In the existing water sealing device, as shown in the first drawing, a total of 3 water drains 9 are required to be configured because of pressure bearing on two sides, and the problems of high investment and high failure point or accident rate caused by the large number of equipment are solved. In order to minimize the number of the water drains 9 and the accident points, there are 1 water drain 9, for example, the utility model of the patent name of the gas pipeline water seal cutting device with the grant publication number of CN2599346Y, can reduce the number of the water drains 9 to 1, and minimize the number of the water drains 9 and the accident points, as shown in a second drawing. However, the scheme cannot be applied to most of drainers with the leakage preventing device arranged at the water outlet of the drainer under the condition that the current coal gas system comprehensively requires the leakage preventing device for preventing the overpressure from breaking through the drainer 9, and can only be used in the type that the leakage preventing device is arranged in the barrel of the drainer, so that great limitation exists.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the gas water seal device, so that the water seal water supply and drainage system is ensured not to cause accidents due to siphon of the water supply water seal and overpressure breakdown of the water drain water seal under the condition of furthest reducing equipment and accident points. The device can solve the problems of large investment, more configuration of the drainer, easy increase of accident rate and large use limitation of the existing gas water seal device.
In order to solve the problems, the technical scheme of the utility model is as follows: the gas water seal device comprises a gas water seal bent pipe, a water supply pipe and a water discharge pipe, wherein the water supply pipe and the water discharge pipe are communicated with the gas water seal bent pipe; the water supply pipe is communicated with the upper end of the gas water seal bent pipe, and the water discharge pipe is communicated with the bottom end of the gas water seal bent pipe; the lower section of the drain pipe is communicated with a leakage-proof drain pipeline through a section of water pipe; the leakage-proof drainage pipeline comprises an annular water pipeline, and the top end of the annular water pipeline is higher than or equal to the top end of the gas water seal elbow; the top end of the annular water pipeline is provided with a ventilation valve, the bottom end of the annular water pipeline is communicated with a drainer through a section of water pipe, and the drainer is communicated with a leakage-proof device; and a fourth cut-off valve is arranged on the pipeline from the connecting point of the annular water pipeline and the drain pipe to the connecting point of the annular water pipeline and the drainer.
Among the above technical schemes, the more specific scheme is: the water supply pipe is provided with a first cut-off valve, a check valve, a water seal and a second cut-off valve from bottom to top in sequence.
Further: the drain pipe upper end is provided with the third shut-off valve, and the bottom is provided with the blowdown valve, leak protection drain pipe intercommunication is in the third shut-off valve with on the drain pipe between the blowdown valve.
Further: the gas water seal bent pipe is a U-shaped bent pipe.
Further: the gas water seal bent pipe is a V-shaped bent pipe.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
the water supply sealing pipe is sequentially provided with the cut-off valve, the check valve, the water seal and the cut-off valve, and in the water seal non-use state, the water seal is equivalent to a pipeline, and the water pipeline is effectively cut off through the blind plate. Under the water-filling forming water-sealing working condition, in order to prevent water in the suddenly water-cutting pipeline from flowing back and siphoning to make the water-sealing invalid, a check valve is arranged, so that the risk that the water-feeding water-sealing is invalid and then coal gas reversely flows into a water-feeding system due to the siphon formed by suddenly flowing back can be avoided. Under the water seal non-cutting off working condition, the drainage passes through the cut-off valve in sequence, the cut-off valve and the leakage-proof drainer are used for normal drainage, and the leakage-proof device is arranged on the drainer. Through the arrangement of the leakage-proof drainer, a large amount of leakage can not be generated under the condition that the overpressure of the coal gas breaks down the water seal. In the water-filling cut-off state, the valve is closed and a blind plate is inserted, and the drain water overflows into a downward drain pipe through an upward drain pipe; then the water enters a leakage-proof drainer for draining, and a high-liquid-level water seal is formed in the water seal to cut off the medium flow of the main pipeline. Through the configuration and the operation, the utility model can be provided with the conventional anti-leakage drainer on the basis of saving the investment most, so that the drainage system can meet two-stage adjustable drainage and has the anti-leakage function, meets the standard requirements, and ensures the production safety.
Drawings
FIG. 1 is one of the prior art arrangements;
FIG. 2 is a second prior art structure;
fig. 3 is a schematic view of the structure of the present utility model.
The reference numerals in the figures are:
1. the gas water seal bent pipe, 2, a first cut-off valve, 3, a check valve, 4, a water inlet pipe water seal, 5, a second cut-off valve, 6, a third cut-off valve, 7, a blow-down valve, 8, a fourth cut-off valve, 9, a drainer, 10, a leakage prevention device, 11 and a ventilation valve.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 and 2 are prior art gas seal devices, and the structure and problems thereof have been described in detail in the background art, and are not described herein.
The gas water seal device of FIG. 3 comprises a gas water seal bent pipe 1, a water supply pipe and a water discharge pipe which are communicated with the gas water seal bent pipe 1; the gas water seal bent pipe 1 is a U-shaped or V-shaped bent pipe; the drain pipe is communicated with the upper end of the U-shaped or V-shaped bent pipe, and the drain pipe is communicated with the bottom end of the U-shaped or V-shaped bent pipe; the water supply pipe is sequentially provided with a first cut-off valve 2, a check valve 3, a water seal 4 and a second cut-off valve 5 from bottom to top; the upper end of the drain pipe is provided with a third cut-off valve 6, the bottom end of the drain pipe is provided with a drain valve 7, and the lower section of the drain pipe between the third cut-off valve 6 and the drain valve 7 is communicated with a leakage-proof drain pipeline through a section of water pipe; the leakage-proof drainage pipeline comprises an annular water pipeline, and the top end of the annular water pipeline is higher than or leveled with the top end of the gas water seal elbow pipe 1; the top end of the annular water pipeline is provided with a ventilation valve 11.
The bottom end of the annular water pipeline is communicated with the drainer 9 through a section of water pipe, and the drainer 9 is communicated with a leakage preventing device 10; a fourth shut-off valve 8 is arranged on the pipeline between the connection point of the annular water pipeline and the drain pipe and the connection point of the annular water pipeline and the drainer 9.
In the utility model, in the state that the water seal is not in use, the water seal is equivalent to a pipeline, and the water supply pipeline needs to be effectively cut off by the blind plate. Under the water-filling forming water-sealing working condition, in order to prevent water in the suddenly water-cutting pipeline from flowing back and siphoning to make the water-sealing invalid, a check valve 3 is arranged, and the check valve 3 can avoid the risk that the water-feeding water-sealing invalid is caused by the sudden backflow forming siphoning so as to generate gas to reversely flow into the water-feeding system.
Under the water seal non-cutting working condition, the water is drained normally through the third cutting valve 6, the fourth cutting valve 8 and the water drainer 9 in sequence, the water drainer 9 is provided with the leakage preventing device 10, and the leakage preventing device 10 ensures that a large amount of leakage can not be generated under the condition that the overpressure of coal gas breaks down the water seal.
In the utility model, when the water seal is in a water filling cut-off state, the fourth cut-off valve 8 is closed and a blind plate is inserted, and drain water overflows into a downward drain pipe through an upward drain pipe; then the water enters a drainer 9 with a leakage prevention function to drain, and a high-liquid-level water seal is formed in the water seal to cut off the medium flow of the main pipeline.
Through the configuration and the operation, the conventional anti-leakage drainer can be configured on the basis of the most investment saving, so that the drainage system can meet two-stage adjustable drainage and has the anti-leakage function, the standard requirement is met, and the production safety is ensured.
Claims (5)
1. The gas water seal device comprises a gas water seal bent pipe, a water supply pipe and a water discharge pipe, wherein the water supply pipe and the water discharge pipe are communicated with the gas water seal bent pipe; the method is characterized in that: the water supply pipe is communicated with the upper end of the gas water seal bent pipe, and the water discharge pipe is communicated with the bottom end of the gas water seal bent pipe; the lower section of the drain pipe is communicated with a leakage-proof drain pipeline; the leakage-proof drainage pipeline comprises an annular water pipeline, and the top end of the annular water pipeline is higher than or equal to the top end of the gas water seal elbow; the top end of the annular water pipeline is provided with a ventilation valve, the bottom end of the annular water pipeline is communicated with a drainer, and the drainer is communicated with a leakage-proof device; and a fourth cut-off valve is arranged on the pipeline from the connecting point of the annular water pipeline and the drain pipe to the connecting point of the annular water pipeline and the drainer.
2. The gas water seal arrangement of claim 1, wherein: the water supply pipe is provided with a first cut-off valve, a check valve, a water seal and a second cut-off valve from bottom to top in sequence.
3. The gas water seal device according to claim 1 or 2, wherein: the drain pipe upper end is provided with the third shut-off valve, and the bottom is provided with the blowdown valve, leak protection drain pipe sets up the third shut-off valve with the drain pipe hypomere between the blowdown valve.
4. A gas water seal arrangement according to claim 3, wherein: the gas water seal bent pipe is a U-shaped bent pipe.
5. A gas water seal arrangement according to claim 3, wherein: the gas water seal bent pipe is a V-shaped bent pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320452147.9U CN219510610U (en) | 2023-03-10 | 2023-03-10 | Gas water seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320452147.9U CN219510610U (en) | 2023-03-10 | 2023-03-10 | Gas water seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219510610U true CN219510610U (en) | 2023-08-11 |
Family
ID=87526356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320452147.9U Active CN219510610U (en) | 2023-03-10 | 2023-03-10 | Gas water seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219510610U (en) |
-
2023
- 2023-03-10 CN CN202320452147.9U patent/CN219510610U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104329485B (en) | A kind of Multifunctional combined valve | |
| CN107327705A (en) | A kind of gas pipeline drainer with anti-blocking and gas cutting function | |
| CN219510610U (en) | Gas water seal device | |
| CN202691176U (en) | Two-way check valve and vacuum oil filter system with same | |
| CN201162952Y (en) | Over-pressure protector for drainage | |
| CN111101579A (en) | Device for converting gravity flow drainage into pressure flow drainage | |
| CN216619790U (en) | High-pressure heater drainage system of steel mill gas generator set | |
| CN104879540A (en) | Pressure reducing valve with valve closing function | |
| CN211922892U (en) | Device for converting gravity flow drainage into pressure flow drainage | |
| CN201391661Y (en) | Pressure regulating shutoff device | |
| CN101769397B (en) | Pressure regulating shutdown device | |
| CN219586848U (en) | Energy dissipation well sewage pressure pipeline | |
| CN209957406U (en) | Anti-siphon device for sewage treatment reactor | |
| CN204114259U (en) | There is the reduction valve of valve closing function | |
| CN202925598U (en) | Silence type pipeline non-negative pressure water supply device | |
| CN203052215U (en) | High-efficiency dewatering energy-saving double-stage leak-proof-type water seal drainer | |
| KR101215409B1 (en) | A surge relief valve of fluid recoverable type and the system | |
| CN221076193U (en) | Isolation tank for shielding downstream pollution of open water system | |
| CN216130274U (en) | Odour seal for sewer pipe | |
| CN219933740U (en) | Novel connecting rod float type leakage-proof gas drainer | |
| CN218599473U (en) | U-shaped water seal leakage-proof device | |
| CN204024724U (en) | A kind of Multi-level water sealing device | |
| CN211601701U (en) | Overheating and scaling prevention device of interstage heat exchanger without return water pressure | |
| CN201359198Y (en) | Overpressure self-closing gas drainer | |
| CN204570877U (en) | A kind of automatic water replenishing type trapped well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |