CN220268509U - Self-help water supplementing type gas condensate discharging water seal device - Google Patents
Self-help water supplementing type gas condensate discharging water seal device Download PDFInfo
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- CN220268509U CN220268509U CN202321898275.2U CN202321898275U CN220268509U CN 220268509 U CN220268509 U CN 220268509U CN 202321898275 U CN202321898275 U CN 202321898275U CN 220268509 U CN220268509 U CN 220268509U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 78
- 238000007599 discharging Methods 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 108
- 239000002893 slag Substances 0.000 claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 4
- 239000013589 supplement Substances 0.000 abstract description 4
- 238000004939 coking Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 description 7
- 238000004880 explosion Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Abstract
The utility model belongs to a water seal device for discharging gas condensate in coking industry, and particularly relates to a self-service water supplementing type gas condensate discharging water seal device. The device comprises a gas pipeline condensate discharge pipe connected with the gas main pipeline and a set of collecting and controlling device; the lower part of the condensate discharging pipe of the gas pipeline is connected with a slag liquid barrel; the device also comprises a condensate overflow pipe, a water supplementing barrel and a guide cylinder; the installation height of the condensate overflow pipe is determined according to the designed water seal height of the gas; the top of the guide cylinder is provided with a gas dissipation pipe; condensate overflows from the condensate overflow pipe into the guide cylinder, enters the water supplementing barrel through a liquid discharge pipe at the bottom of the other side of the guide cylinder, enters the water supplementing barrel from the middle part of the water supplementing barrel, has a secondary water sealing effect, and flows out from a condensate receiving hole formed in the top of the water supplementing barrel, is communicated with a water sealing condensate collecting tank through a pipeline, and is communicated with the slag liquid barrel through a pipeline, a control valve and a check valve at the lower part of the water supplementing barrel to supplement liquid for the slag liquid barrel.
Description
Technical Field
The utility model belongs to a water seal device for discharging gas condensate in coking industry, and particularly relates to a self-service water supplementing type gas condensate discharging water seal device.
Background
The gas condensate discharging water seal is a device which is used in the coking industry and can remove condensate in a gas pipeline. The condensate in the gas pipeline is discharged to seal the water, and the water stored in the water seal groove is mainly used for sealing the gas in the gas pipeline liquid discharge pipe, namely, the water column with a certain height in the water seal groove is used for sealing and resisting the gas with a certain pressure in the gas liquid discharge pipe, so that the condensate in the gas pipeline is discharged, and meanwhile, the gas is prevented from leaking.
The existing widely used gas condensate discharging water seal has more defects and mainly comprises the following aspects:
1. when the actual pressure in the gas pipeline exceeds the designed water seal pressure, the gas breaks through the water seal and overflows, part of the gas accumulates in the top space of the water seal tank, and the water seal tank has explosion risk.
2. According to the environment-friendly requirement, overflowed condensate is connected into a closed condensate collecting tank through a pipeline, when gas breaks through water seal overflow due to high pressure, part of the gas can flow into the condensate collecting tank from an overflow port and accumulate in the top space of the condensate collecting tank, a top pumping and draining port can be opened when a sewage suction truck regularly pumps and drains, a pumping and draining pipe is inserted, sparks can be generated when metal pipe fittings collide, and the deflagration risk of the condensate collecting tank is high.
3. The drain pipe is hidden in the water seal chamber, gas and liquid are added inside and outside the pipe wall, and the hidden trouble of the pipe wall perforation caused by corrosion cannot be checked and treated. If the condensate discharge pipe is perforated at a low position, the water column pressure of the gas water seal is greatly reduced. In the extreme case, if the water seal function is completely disabled when the high-level perforation is performed, namely the condensate overflow port is exceeded, the gas is directly discharged in an uncontrolled manner.
4. The height of the water seal groove is increased along with the increase of the design pressure of the coal gas, when the installation position of the main coal gas pipeline is lower, a foundation pit is also required to be excavated, and the coal gas water seal is submerged under the ground, so that hidden danger investigation and disposal are inconvenient.
5. Slag impurities carried in the gas flow into the water seal tank along with condensate, all water seal water in the water seal tank must be emptied to clean the slag impurities accumulated in the water seal tank, and a large amount of fresh water must be replenished after the cleaning is completed.
Disclosure of Invention
The utility model provides a self-help water supplementing type gas condensate discharging water seal device, which aims to solve the technical problems of the existing gas condensate discharging water seal.
The utility model is realized by adopting the following technical scheme: a self-help water supplementing type gas condensate discharging water sealing device comprises a gas pipeline condensate discharging pipe connected with a gas main pipeline and a water sealing condensate collecting tank positioned on the ground; the top of the condensate discharging pipe of the gas pipeline is connected with the main gas pipeline, and the bottom of the condensate discharging pipe is connected with a slag liquid barrel provided with a slag discharging valve; the device also comprises a condensate overflow pipe, a water supplementing barrel and a guide cylinder, wherein the condensate overflow pipe and the water supplementing barrel are arranged above the slag liquid barrel; the upper end and the lower end of the condensate overflow pipe are respectively connected with the guide cylinder and the slag liquid barrel, and the installation height of the condensate overflow pipe is determined according to the designed gas water seal height; the top of the guide cylinder is provided with a gas dissipation pipe, and the outlet of the gas dissipation pipe is provided with a CO detector; the bottom of the guide cylinder is connected with the middle part of the water supplementing barrel through a liquid discharge pipe, an overflow port at the top of the water supplementing barrel is communicated with a water seal condensate collecting tank through a pipeline, and the bottom of the water supplementing barrel is communicated with a slag liquid barrel through a pipeline; the condensed liquid discharge pipe of the gas pipeline is connected with a condensed liquid removing root valve of the gas and a condensed liquid discharging control valve of the gas from top to bottom in series; a liquid withdrawal control valve and an endoscope are connected in series on a pipeline between the water supplementing barrel and the water seal condensate pool, and a check valve and a liquid supplementing valve are connected in series on a pipeline between the water supplementing barrel and the slag liquid barrel in sequence.
When the water seal is used for the first time or the water quantity of the water supplementing barrel is insufficient after slag impurities in the slag liquid barrel are cleaned, the water supplementing barrel liquid-removing control valve is closed, the gas condensate liquid-removing root valve is opened, the gas condensate liquid-removing control valve is intermittently opened, the gas condensate liquid-removing root valve and the liquid-removing control valve are set to be normally open after the slag liquid barrel is fully filled with water, and then the water supplementing barrel liquid-removing control valve is intermittently opened until overflow water can be seen in the water supplementing barrel liquid-removing pipe peeping mirror after the water supplementing barrel is fully filled, and the liquid-removing control valve is set to be normally open and the water seal is put into operation.
When the pressure fluctuation of the gas exceeds the design pressure, the water seal water in the condensate overflow pipe is emptied, and the gas is dissipated to the upper guide cylinder and is safely discharged into the high altitude. A liquid discharge pipe is arranged below the guide cylinder and is led into the water supplementing barrel, and the liquid discharge pipe enters from the middle part of the water supplementing barrel and can play a secondary water sealing role, so that coal gas cannot leak to the lower part, and the explosion risk of the coal gas condensate collecting tank is eliminated. After the normal pressure of the gas is restored, the water level of the water supplementing barrel is higher, the water pressure is larger than the back pressure of the gas release, water is automatically supplemented to the slag liquid barrel through the check valve, and the water sealing function of the overflow pipe is automatically restored to be normal.
When oil residues in the residue liquid barrel accumulate a certain amount or are required to be cleaned regularly, the gas condensate gas liquid draining control valve is closed, the liquid supplementing valve of the water supplementing barrel is closed, the slag discharging valve at the bottom of the residue liquid barrel is opened, the slag discharging valve is closed after the residue liquid is discharged completely, the liquid supplementing valve of the water supplementing barrel is opened, the water supplementing barrel is supplemented (the liquid level of the water supplementing barrel is confirmed to be sufficient before the residue liquid barrel is discharged, namely, the overflow water state is visible in an sight glass) and finally the production is restored according to a water seal operation program.
Further, a branch pipeline is horizontally connected between the gas condensate liquid removing root valve and the gas condensate liquid discharging control valve through a gas pipeline condensate liquid discharging pipe, and the branch pipeline is connected with a first check valve and a second check valve in series.
Before intermittently opening the gas condensate liquid discharge control valve, the first check valve and the second check valve are opened, the gas condensate liquid discharge control valve is opened when water is confirmed, and the gas condensate liquid discharge control valve is closed when the gas escape alarm is given.
The self-help water supplementing type gas condensate discharging water sealing device can well solve the problem of the old water sealing:
1. the utility model can ensure safe discharge due to large pressure fluctuation of gas in the gas condensate discharge process, and the gas breaks through a water seal and leaks. When the gas pressure is recovered to be normal, the original water sealing state can be recovered by self-service water supplementing;
2. the water seals commonly used at present are all provided with built-in pipelines, hidden dangers of water seal failure caused by corrosion perforation cannot be checked and disposed, and the hidden pipelines are not arranged in the water seals, so that hidden dangers are checked and disposed clearly; each part can be independently disposed, and the maintenance is simple and convenient.
3. When the installation position of the main gas pipeline is lower (the bottom height of the main gas pipeline is not lower than the top horizontal height of the slag liquid barrel), the water seal does not need to sink into the underground foundation pit, and only an overflow pipe and a water supplementing barrel with corresponding heights are required to be arranged according to the gas pressure.
4. The condensate liquid carries a large amount of slag impurities and is accumulated in the water sealing tank, the pollution discharge and cleaning difficulty is high, the slag liquid barrel provided by the utility model has moderate capacity, the slag liquid barrel is convenient to clean, and the condensate liquid stored in the liquid supplementing barrel can be used for quickly supplementing water sealing after cleaning.
5. The self-service water supplementing water seal has no internal space for gas accumulation, can prevent gas from channeling into a condensate collecting tank, eliminates the risk of fire explosion, and can ensure the safety operation of surrounding operators.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
1-a condensate discharge pipe of a gas pipeline, 2-a slag liquid barrel, 3-a condensate overflow pipe, 4-a guide cylinder, 5-a water supplementing barrel, 6-a gas dissipation pipe, 7-a liquid discharge pipe, 8-a CO detector, 9-a gas main pipe and 10-a water seal condensate collecting tank;
an a-gas condensate liquid removing root valve, a b-first check valve, a c-second check valve, a d-gas condensate liquid discharging control valve, an e-slag discharging valve, an f-check valve, a g-liquid supplementing valve, an h-liquid removing control valve and an i-sight glass.
Detailed Description
As shown in fig. 1, a self-service water-supplementing gas condensate discharging water sealing device comprises a gas pipeline condensate discharging pipe 1 connected with a gas main pipeline 9, a set of condensate collecting device (a water sealing condensate collecting tank 10) and a control device (such as an industrial personal computer is adopted to control the action of each valve) which are positioned on the ground; the top of the condensate discharging pipe 1 of the gas pipeline is connected with a main gas pipeline 9, and the bottom of the condensate discharging pipe is connected with a slag liquid barrel 2 provided with a slag discharging valve e; the device also comprises a condensate overflow pipe 3 positioned above the slag liquid barrel 2, a water supplementing barrel 5 and a guide cylinder 4 positioned above the condensate overflow pipe 3 and the water supplementing barrel; the installation height of the condensate overflow pipe 3 is determined according to the designed gas pressure at the water seal position, namely the designed water seal height; the top of the guide cylinder 4 is provided with a gas dissipation pipe 6, and the outlet of the gas dissipation pipe 6 is provided with a CO detector 8; one side of the bottom of the guide cylinder 4 is connected with the condensate overflow pipe 3, and the other side is connected with the middle part of the water supplementing barrel 5 through a liquid discharge pipe 7; the top of the water supplementing barrel 5 is provided with an overflow port, the overflow port at the top of the water supplementing barrel 5 is communicated with the water seal condensate collecting tank 10 through a pipeline, and the bottom of the water supplementing barrel 5 is communicated with the slag liquid barrel 2 through a pipeline; the condensate discharge pipe 1 of the gas pipeline is connected with a gas condensate liquid removing root valve a and a gas condensate liquid discharge control valve d from top to bottom in series; a liquid-withdrawal control valve h and a sight glass i are connected in series on a pipeline between the water supplementing barrel 5 and the water-seal condensate collecting tank 10, and a check valve f and a liquid supplementing valve g are connected in series on a pipeline between the water supplementing barrel 5 and the slag liquid barrel 2 in sequence.
The inner diameter of the gas dissipation pipe 6 is larger than that of the liquid discharge pipe 7. The gas dissipation pipe diameter is thicker, the dissipation back pressure is smaller, the diameter of the lower liquid discharge pipe is thinner and the gas is introduced from the middle part of the water supplementing barrel, so that the gas can be further ensured not to leak to the lower part, and the upward gas emission when the system gas pressure breaks through the water seal is ensured. The liquid discharge pipe 7 enters from the middle part of the outer side of the liquid supplementing barrel 5, can play a secondary water sealing role, and ensures that gas cannot be discharged into the liquid supplementing barrel 5 when the pressure of the system gas breaks through the water sealing greatly.
The bottom of the slag liquid barrel 2 is in an inverted cone shape, and a slag discharging valve e is arranged at a cone opening at the bottom of the slag liquid barrel 2.
The top level of the slag liquid barrel 2 is designed to be lower than the main gas pipeline.
The condensate discharging pipe 1 of the gas pipeline is connected with a horizontal branch pipeline (above the position close to d) between a condensate liquid removing root valve a and a condensate liquid discharging control valve d (the position close to the slag liquid barrel is convenient to switch), and the branch pipeline is connected with a first check valve b and a second check valve c in series, so that when the slag liquid barrel is water-sealed for the first time, no water is put into the slag liquid barrel or the water quantity of a water supplementing barrel is insufficient after the slag liquid barrel is cleaned, and the slag liquid barrel cannot be fully filled with water, condensate generated in the gas condensation process in the gas main pipeline is needed to be utilized to supplement water for the slag liquid barrel, and the first check valve b and the second check valve c (the two check valves are arranged to be the requirements of safety and maintenance) are opened, so that the condensate liquid discharging control valve d of the gas pipeline 1 is opened when water exists.
The self-help fluid-supplementing type gas condensate discharging water seal device has the following functions:
1. condensate discharge pipe of gas pipeline: the upper part is connected with the main gas pipeline and the lower part is connected with a slag liquid collecting barrel.
2. Slag liquid barrel: the lower part is designed into an inverted cone shape, and a slag discharging valve is additionally arranged to facilitate slag discharging.
3. Fluid infusion bucket: the lower part is provided with a check valve and a liquid supplementing valve which are communicated with the slag liquid barrel, so that water seal water can be conveniently supplemented, namely automatic supplement (after the gas pressure breaks through water seal) or self-help supplement (after the slag liquid barrel is cleaned), the middle part of the liquid supplementing barrel is provided with a communicating pipe which is connected with a guide cylinder, and the top part is provided with an overflow external discharge pipe which leads to a collecting tank.
4. Condensate overflow pipe: the lower slag liquid barrel is connected, the upper part of the slag liquid barrel is communicated with the guide cylinder, and the installation height of the slag liquid barrel is the height of the gas water seal which is determined by the water seal arrangement position according to the design gas pressure in the gas pipeline and the standard requirement.
5. A guide shell: the top of the condensate overflow pipe is connected with a guide cylinder, the other side of the condensate overflow pipe is correspondingly provided with a liquid discharge pipe, the guide cylinder is connected with the middle part of the liquid supplementing barrel, when the liquid level of the liquid supplementing barrel is lowered due to water supplementing of the liquid supplementing barrel after the pressure of coal gas breaks through water sealing, the guide cylinder liquid discharge pipe can be still sealed, the guide cylinder liquid discharge pipe is equivalent to the secondary water sealing effect, and the dissipated coal gas is prevented from being discharged into a collecting tank. The top of the guide cylinder is connected with a gas dissipation pipe.
6. A gas dissipation pipe: the upper part of the guide cylinder is connected with a gas dissipation pipe, the height of the dissipation pipe is set according to the specification, and when the gas pressure of the main gas pipeline is increased to break through the water seal of the condensate overflow pipe, the dissipation gas can be ensured to be discharged to the safe height.
7. CO detector: the top of the gas dissipation pipe is connected with a CO detector, so that the gas dissipation emission can be intuitively found, and alarm information can be sent out.
The innovation points of the utility model are as follows:
all the pipelines for discharging and communicating are peripheral, and no internal hidden pipe fittings exist;
the water seal groove does not need to sink into the foundation pit below the ground (the height of the condensate overflow pipe can exceed the height of the main gas pipeline);
the water supplementing barrel is arranged, so that self-service water supplementing can be realized;
the slag liquid barrel is designed into an inverted cone shape, so that the slag liquid barrel is convenient to clean, clean and efficient;
condensate overflows from the overflow pipe and enters the guide flow barrel, flows downwards from the middle of the water supplementing barrel through the liquid discharge pipe, forms a secondary water seal after the water supplementing barrel is fully supplemented, and automatically flows to the collecting tank from the water supplementing barrel, so that the condensate can be prevented from flowing into the water seal condensate pool when the gas pressure is high, and the gas explosion risk is eliminated;
when the pressure of the gas breaks through the overflow of the water seal, the CO detector alarms.
Claims (5)
1. A self-help water supplementing type gas condensate discharging water sealing device comprises a gas pipeline condensate discharging pipe (1) connected with a gas main pipeline (9) and a water sealing condensate collecting tank (10) positioned on the ground; the device is characterized in that the top of a condensate discharging pipe (1) of the gas pipeline is connected with a main gas pipeline (9), and the bottom of the condensate discharging pipe is connected with a slag liquid barrel (2) provided with a slag discharging valve (e); the device also comprises a condensate overflow pipe (3) positioned above the slag liquid barrel (2), a water supplementing barrel (5) and a guide cylinder (4) positioned above the condensate overflow pipe (3) and the water supplementing barrel (5); the upper end and the lower end of the condensate overflow pipe (3) are respectively connected with the guide cylinder (4) and the slag liquid barrel (2), and the installation height of the condensate overflow pipe (3) is determined according to the designed gas water seal height; a gas dissipation pipe (6) is arranged at the top of the guide cylinder (4), and a CO detector (8) is arranged at the outlet of the gas dissipation pipe (6); the bottom of the guide cylinder (4) is connected with the middle part of the water supplementing barrel (5) through a liquid discharge pipe (7), the overflow port at the top of the water supplementing barrel (5) is communicated with a water seal condensate collecting tank (10) through a pipeline, and the bottom of the water supplementing barrel (5) is communicated with the slag liquid barrel (2) through a pipeline; the gas pipeline condensate discharge pipe (1) is connected with a gas condensate liquid removing root valve (a) and a gas condensate liquid discharging control valve (d) from top to bottom in series; a liquid withdrawal control valve (h) and a sight glass (i) are connected in series on a pipeline between the water supplementing barrel (5) and the water seal condensate collecting tank (10), and a check valve (f) and a liquid supplementing valve (g) are connected in series on a pipeline between the water supplementing barrel (5) and the slag liquid barrel (2) in sequence.
2. A self-service water-replenishing gas condensate discharge water seal device as claimed in claim 1, wherein the inner diameter of the gas dissipation pipe (6) is larger than the inner diameter of the liquid discharge pipe (7).
3. The self-service water supplementing type gas condensate discharging water sealing device according to claim 1, wherein the bottom of the slag liquid barrel (2) is in an inverted cone shape, and the slag discharging valve (e) is arranged at a conical opening at the bottom of the slag liquid barrel (2).
4. A self-service water supplementing type gas condensate discharging water sealing device as claimed in claim 3, wherein the height of the water supplementing barrel (5) is matched with the designed gas pressure at the water sealing position, and the top level of the slag liquid barrel (2) is lower than the bottom of the gas main pipeline (9).
5. A self-service water-replenishing gas condensate drain water seal arrangement as claimed in any one of claims 1 to 4, wherein the gas conduit condensate drain pipe (1) is horizontally connected with a branch pipe between the gas condensate withdrawal root valve (a) and the gas condensate drain control valve (d), the branch pipe being connected in series with a first check valve (b) and a second check valve (c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321898275.2U CN220268509U (en) | 2023-07-19 | 2023-07-19 | Self-help water supplementing type gas condensate discharging water seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321898275.2U CN220268509U (en) | 2023-07-19 | 2023-07-19 | Self-help water supplementing type gas condensate discharging water seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220268509U true CN220268509U (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321898275.2U Active CN220268509U (en) | 2023-07-19 | 2023-07-19 | Self-help water supplementing type gas condensate discharging water seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220268509U (en) |
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2023
- 2023-07-19 CN CN202321898275.2U patent/CN220268509U/en active Active
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