CN211118784U - EHS (electric fire alarm system) for urban gas pigging receiving and dispatching balls - Google Patents
EHS (electric fire alarm system) for urban gas pigging receiving and dispatching balls Download PDFInfo
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- CN211118784U CN211118784U CN201921548921.6U CN201921548921U CN211118784U CN 211118784 U CN211118784 U CN 211118784U CN 201921548921 U CN201921548921 U CN 201921548921U CN 211118784 U CN211118784 U CN 211118784U
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- pigging
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- dispatching
- ball
- filtering separator
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Abstract
An EHS system for receiving and dispatching city gas pigging comprises a pigging ball receiving and dispatching barrel, a dirt collecting tank, a filtering separator and an emptying pipe, wherein the pigging ball receiving and dispatching barrel is provided with a reclaimed gas interface and is connected with the filtering separator through the reclaimed gas interface; the pigging ball receiving and sending cylinder and the filtering separator are connected with the sewage collecting tank through a closed pipeline; the pipe cleaning receiving and dispatching ball barrel, the dirt collecting tank and the filtering separator are connected with the emptying pipe through pipelines. The utility model discloses a consider during the design of spherical ball system is received and dispatched to the dredging pipe and carry out recycle to the end natural gas, carry out the air-tight transport and collect to produced sewage of dredging pipe, but the environmental pollution that the spherical ball operation was received and dispatched to greatly reduced dredging pipe effectively avoids the incident to take place, guarantee operating personnel personal safety.
Description
Technical Field
The utility model belongs to the technical field of the natural gas transmission and distribution technique and specifically relates to an EHS system that is used for city gas pigging to receive and dispatch ball is related to.
Background
The urban natural gas high-pressure pipe network is an important component of a natural gas transmission and distribution system and is an 'aorta' for urban natural gas transmission. The detection technology in the pipeline can complete the positioning of the defects of the pipeline body by operating an intelligent pipe cleaner provided with an electronic pipe cleaner and a data acquisition, processing and storage system in the pipeline under the condition of ensuring the normal operation of the pipeline, and provides scientific basis for the prevention and the operation maintenance of pipeline accidents. The conventional pipe cleaning ball receiving and dispatching system does not consider recycling of tail-end gas, natural gas in a pipeline is directly discharged at a high point through a discharge pipe for pressure release, and the high-pressure pipeline has a large caliber and high pressure, so that the discharge amount is large, huge waste of natural gas resources is caused, natural gas detonation danger exists, and pollution is caused to local air environment; the produced waste water of pigging is inserted in the blowdown hole to conventional pigging ball receiving system, can't accomplish the seal transport, and sewage crossing current in the operation process of pigging usually causes the pollution to groundwater and soil environment, still can carry a certain amount of natural gas among the blowdown process, probably has the risk of natural gas blasting.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a can reduce the pigging and receive and dispatch ball operation natural gas volume of loosing, reduce the pigging and receive and dispatch the environmental pollution that the ball operation caused, effectively avoid the incident to take place, guarantee operating personnel personal safety makes it satisfy the EHS system that is used for city gas pigging to receive and dispatch the ball that EHS management system required.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
an EHS system for receiving and dispatching city gas pigging comprises a pigging ball receiving and dispatching barrel, a dirt collecting tank, a filtering separator and an emptying pipe, wherein the pigging ball receiving and dispatching barrel is provided with a reclaimed gas interface and is connected with the filtering separator through the reclaimed gas interface; the pigging ball receiving and sending cylinder and the filtering separator are connected with the sewage collecting tank through a closed pipeline; the pipe cleaning receiving and dispatching ball barrel, the dirt collecting tank and the filtering separator are connected with the emptying pipe through pipelines.
Furthermore, the pigging ball receiving and dispatching cylinder is externally connected with an external high-pressure pipe network through two cut-off valves.
Furthermore, the pigging ball receiving and sending barrel recovered gas interface is connected with the air inlet of the filtering separator through a pipeline, and the air outlet of the filtering separator is externally connected with a pressure regulating and metering system.
Furthermore, the drain outlet of the pigging ball receiving and sending cylinder and the drain outlet of the filtering separator are connected with the sewage collecting tank through closed pipelines.
Furthermore, the pigging ball receiving and sending barrel diffusing port and the filtering separator diffusing port are connected to an emptying pipe through pipelines; the pressure of the sewage collecting tank diffusing port is lower and is independently connected to the emptying pipe through a pipeline.
Furthermore, the pigging ball receiving and sending barrel is externally connected with a high-pressure air supply source when used for serving balls, the pigging ball receiving and sending barrel has no pigging ball serving function, and the interface does not exist.
Furthermore, a special hose is arranged at a liquid outlet of the sewage collection tank and is used for connecting a tank car of the automobile groove.
Compared with the prior art, the utility model discloses the advantage that possesses does:
in the system, only a small amount of natural gas is discharged into the atmosphere in the container pressure relief and sewage collection processes, compared with the original device, the discharge amount can be reduced by more than 90 percent, the waste of natural gas resources can be greatly reduced, and the pollution to the air environment is reduced; the system discharges the diffused gas in a high-point centralized manner, and compared with the prior device in which a large amount of natural gas is discharged from underground drainage pits, the safety is greatly improved; the sewage of the system is organized and conveyed through a closed pipeline, after the sewage is collected by a special sewage collecting tank, the sewage is conveyed to a sewage treatment plant through a special tank car for specialized treatment, and compared with an original device which directly discharges into a sewage discharge pit, the sewage treatment system can effectively avoid the pollution of underground water resources and soil.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, an EHS system for city gas pigging, receiving and dispatching balls comprises a pigging, receiving and dispatching ball barrel 1, a sewage collecting tank 3, a filtering separator 4 and an emptying pipe 2; the spherical pigging and receiving cylinder 1 is used for sending and receiving pigging balls, and the specification parameters are matched with the caliber and the pressure of a pigging pipeline; the filtering precision of the filtering separator 4 is not less than 20 μm, and the filtering separator is used for filtering and purifying the recovered gas; the sewage collecting tank 3 is used for storing sewage generated by pigging operation, the container does not bear internal pressure, and the volume of the sewage collecting tank is 2-3 times of the volume of the pigging ball collecting barrel; the emptying pipe 2 is used for high-point centralized discharge of emptying gas, and the emptying gas with different pressure grades is preferably independently connected into the emptying pipe 2 so as to avoid mutual influence; the pigging ball receiving and sending barrel 1 is provided with a recycled gas interface 11 and is connected with the filtering separator 4 through the recycled gas interface 11; the pigging ball receiving and sending cylinder 1 and the filtering separator 4 are connected with the sewage collecting tank 3 through a closed pipeline; the pigging ball receiving and sending cylinder 1, the dirt collecting tank 3 and the filtering separator 4 are connected with the emptying pipe 2 through pipelines.
Further, a spherical pig receiving and dispatching barrel 1 is externally connected with an external high-pressure pipe network 6 through two stop valves 12, spherical pigs enter the internal spherical pig receiving and dispatching barrel through the spherical pig receiving and dispatching barrel, the spherical pigs are received and dispatched through the two stop valves 12, and therefore the closing effect caused by leakage in the valve can be avoided.
Furthermore, the recovered gas interface 11 of the pigging ball receiving and dispatching cylinder 1 is connected with the gas inlet of the filter separator 4 through a pipeline, the gas outlet of the filter separator 4 is externally connected with a pressure regulating and metering system 7, and the recovered gas is used by a user after being subjected to pressure regulation and metering through the pressure regulating and metering system 7.
Furthermore, a sewage outlet 8 of the pigging ball receiving and sending cylinder 1 and a sewage outlet 9 of the filtering separator 4 are connected with the sewage collecting tank 3 through a closed pipeline.
Further, the pressure relief of each container is gathered to the high point of the emptying pipe 2 through a pipeline for centralized emptying, and the emptying pipe ball receiving and dispatching barrel 1 is connected with the emptying pipe 2 through a dispersing port 10 and a filtering separator 4 is connected with a dispersing port 13 through a pipeline; the pressure of the discharge port 14 of the sewage collecting tank 3 is lower and the sewage collecting tank is separately connected to the emptying pipe 2 through a pipeline.
Furthermore, when the spherical pig receiving and sending barrel 1 is used for serving balls, the spherical pig receiving and sending barrel is externally connected with a high-pressure air supply source 5, the spherical pig receiving and sending barrel has no spherical pig serving function, and an external connecting interface does not exist.
Further, dirty jar 3 of collection establish inlet, liquid outlet, manual drain, access hole and relief valve etc. receive and dispatch ball section of thick bamboo sewage and arrange into in dirty jar 3 of collection through airtight pipeline and collect, carry the natural gas that gets into and discharge through 2 high points of blow-down pipe, dirty jar 3 liquid outlet of collection sets up special hose 31 for connect the automobile groove tank car.
The utility model discloses an EHS system for ball is received and dispatched in city gas pigging, its concrete operation flow is:
1. the spherical pig moves from the ball sending end to the ball receiving end under the action of the pressure in the pipeline, when the spherical pig enters the tail section of the high-pressure pipe network (namely after the last tee joint), a recycled gas interface valve 11 is opened, a filtering and separating device 4 is started, recycled gas is connected into a pressure regulating and metering system 7 after being filtered and then is used by a user, and the spherical pig is helped to smoothly enter a ball receiving and sending barrel by releasing the pressure in the ball receiving and sending system;
2. the pigging ball can push a large amount of sewage into the ball receiving and sending cylinder 1; when the spherical pig is successfully recovered, closing the two cut-off valves 12 of the main pipeline and closing the recovered gas interface valve 11; after a blow-off valve 14 of the sewage collecting tank 3 is opened, a blow-off valve 8 of the receiving and sending ball cylinder 1 is slowly opened, sewage in the receiving and sending ball cylinder 1 enters the sewage collecting tank 3 under the action of pressure, liquid is remained in the sewage collecting tank 3, and gas is intensively discharged at a high point through an emptying pipe 2; after sewage in the ball receiving and dispatching cylinder 1 is completely drained, closing a drain outlet cut-off valve 8 of the ball receiving and dispatching cylinder 1, opening a blow-off valve 10 of the ball receiving and dispatching cylinder 1 to empty natural gas in a container, opening a quick-opening blind plate 15 of the ball receiving and dispatching cylinder 1, taking out the pigging balls, and finishing single pigging operation;
3. after sewage reaches a certain amount in the sewage collection tank 3, the sewage is transported to a sewage treatment plant by a tank car of an automobile groove for specialized treatment, the sewage collection tank 3 is connected with the tank car of the automobile groove by a special hose 31, and the loading operation can be carried out on the sewage collection tank 3 by pressurizing through a nitrogen steel cylinder when the gravity loading can not be completed.
The utility model discloses a consider during the design of spherical ball system is received and dispatched to the dredging pipe and carry out recycle to the end natural gas, carry out the air-tight transport and collect to produced sewage of dredging pipe, but the environmental pollution that the spherical ball operation was received and dispatched to greatly reduced dredging pipe effectively avoids the incident to take place, guarantee operating personnel personal safety.
Claims (7)
1. The utility model provides a be used for city gas pigging to receive and dispatch EHS system of ball, includes pigging receiving and dispatching ball section of thick bamboo, its characterized in that: the sewage collecting tank, the filtering separator and the emptying pipe are also included, and the pigging receiving and dispatching ball barrel is provided with a recycled gas interface and is connected with the filtering separator through the recycled gas interface; the pigging ball receiving and sending cylinder and the filtering separator are connected with the sewage collecting tank through a closed pipeline; the pipe cleaning receiving and dispatching ball barrel, the dirt collecting tank and the filtering separator are connected with the emptying pipe through pipelines.
2. The EHS system for city gas pigging, receiving and dispatching of balls according to claim 1, wherein: the pigging ball receiving and dispatching cylinder is externally connected with an external high-pressure pipe network through two cut-off valves.
3. The EHS system for city gas pigging, receiving and dispatching of balls according to claim 1, wherein: the pipeline cleaning ball receiving and sending barrel recycling gas interface is connected with the gas inlet of the filtering separator through a pipeline, and the gas outlet of the filtering separator is externally connected with a pressure regulating and metering system.
4. The EHS system for city gas pigging, receiving and dispatching of balls according to claim 1, wherein: the drain outlet of the pigging ball receiving and sending cylinder and the drain outlet of the filtering separator are connected with the sewage collecting tank through closed pipelines.
5. The EHS system for city gas pigging, receiving and dispatching of balls according to claim 1, wherein: the pigging ball receiving and sending barrel diffusing port and the filtering separator diffusing port are connected to the emptying pipe through pipelines; the sewage collecting tank relief opening is connected into the emptying pipe through a pipeline independently.
6. An EHS system for city gas pigging, receiving and dispatching balls according to claim 1 or 2, characterized in that: the pigging ball receiving and sending barrel is externally connected with a high-pressure air supply source when used for serving balls.
7. The EHS system for city gas pigging receiving and dispatching balls according to claim 1 or 4, wherein: the liquid outlet of the sewage collecting tank is provided with a special hose for connecting a tank car of an automobile groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548921.6U CN211118784U (en) | 2019-09-18 | 2019-09-18 | EHS (electric fire alarm system) for urban gas pigging receiving and dispatching balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548921.6U CN211118784U (en) | 2019-09-18 | 2019-09-18 | EHS (electric fire alarm system) for urban gas pigging receiving and dispatching balls |
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| Publication Number | Publication Date |
|---|---|
| CN211118784U true CN211118784U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921548921.6U Active CN211118784U (en) | 2019-09-18 | 2019-09-18 | EHS (electric fire alarm system) for urban gas pigging receiving and dispatching balls |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529743A (en) * | 2019-09-18 | 2019-12-03 | 无锡华润燃气有限公司 | A kind of EHS system and its operating method for gas pigging transmitting-receiving ball |
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2019
- 2019-09-18 CN CN201921548921.6U patent/CN211118784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529743A (en) * | 2019-09-18 | 2019-12-03 | 无锡华润燃气有限公司 | A kind of EHS system and its operating method for gas pigging transmitting-receiving ball |
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