阅读说明：本技术 一种用于城市燃气清管收发球的ehs系统及其操作方法 (A kind of EHS system and its operating method for gas pigging transmitting-receiving ball ) 是由 王强 计强 陆田军 信书圆 付晓霞 刘安 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种用于城市燃气清管收发球的EHS系统及其操作方法,包括清管收发球筒,以及集污罐、过滤分离器和放空管,所述的清管收发球筒设置有回收气接口,并通过回收气接口连接过滤分离器；所述的清管收发球筒和过滤分离器通过密闭管道与集污罐连接；所述的清管收发球筒、集污罐和过滤分离器通过管道与放空管连接。本发明的清管收发球系统设计时考虑对末段天然气进行回收利用,对清管所产生的污水进行密闭输送和收集,可大大降低清管收发球操作所造成的环境污染,有效避免安全事故发生,保障操作人员人身安全。(The invention discloses a kind of EHS systems and its operating method for gas pigging transmitting-receiving ball, including pigging receiving ball tube, and dirt collecting tank, filter separator and blow-down pipe, the pigging receiving ball tube is provided with recycling gas interface, and connects filter separator by recycling gas interface；The pigging receiving ball tube and filter separator are connect by closed conduit with dirt collecting tank；Pigging receiving ball tube, dirt collecting tank and the filter separator is connect by pipeline with blow-down pipe.Pigging transmitting-receiving ball system of the invention considers to be recycled latter end natural gas when designing, closed conveying and collection are carried out to sewage caused by pigging, the environmental pollution caused by pigging transmitting-receiving ball exercise is made can be substantially reduced, safety accident is effectively avoided, ensures operator's personal safety.)

1. a kind of EHS system for gas pigging transmitting-receiving ball, including pigging receiving ball tube, it is characterised in that: further include Dirt collecting tank, filter separator and blow-down pipe, the pigging receiving ball tube is provided with recycling gas interface, and passes through recycling gas interface Connect filter separator；The pigging receiving ball tube and filter separator are connect by closed conduit with dirt collecting tank；Described Pigging receiving ball tube, dirt collecting tank and filter separator are connect by pipeline with blow-down pipe.

2. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1, it is characterised in that: described Pigging receiving ball tube pass through outer high pressure pipe network of going to the station to meet somebody outside twice stop valve.

3. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1, it is characterised in that: described Pigging receiving ball tube recycling gas interface connected with filter separator air inlet by pipeline, the filter separator gas outlet External pressure regulation metering system.

4. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1, it is characterised in that: described The sewage draining exit of pigging receiving ball tube, the sewage draining exit of filter separator connected with dirt collecting tank by closed conduit.

5. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1, it is characterised in that: described Pigging receiving ball tube diffusion mouth, filter separator diffusion mouth through pipeline access blow-down pipe；The dirt collecting tank diffusion mouth is independent Blow-down pipe is accessed through pipeline.

6. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1 or 2, it is characterised in that: institute The pigging receiving ball tube stated is used as external high-pressure air feed gas source when service.

7. a kind of EHS system for gas pigging transmitting-receiving ball according to claim 1 or 4, it is characterised in that: institute The dirt collecting tank liquid outlet setting special hose stated, for connecting automobile groove tank car.

8. a kind of operating method of the described in any item EHS systems for gas pigging transmitting-receiving ball of claim 1-7, It is characterized in that, comprising the following steps:

(1) spherical pig is mobile from service end to ball end is received under manifold pressure effect, when spherical pig enters high pressure pipe network latter end Shi Kaiqi recycles gas interface valve, enables filter separator, and recycling gas makes after accessing pressure regulation metering system after filtering for user With, by release receive and dispatch ball system pressure, enter spherical pig in receiving ball tube；

(2) it is smoothly withdrawn to spherical pig, closes main pipeline twice stop valve, close recycling gas interface valve；Dirt collecting tank is opened to put After dissipating valve, receiving ball tube blowdown valve is slowly opened, sewage enters dirt collecting tank under pressure in receiving ball tube, and liquid stays in collection In dirty tank, gas is concentrated through blow-down pipe high point and is discharged；After sewage in receiving ball tube empties, the cutting of receiving ball tube sewage draining exit is closed Valve opens receiving ball tube diffusion valve and empties natural gas in container, opens receiving ball tube fast opening blind, after spherical pig is taken out, Single pigging operations are completed；

(3) it after sewage reaches certain amount in dirt collecting tank, is connected with special hose by sewage between dirt collecting tank and automobile groove tank car Be discharged into automobile groove tank car and transport to sewage treatment plant and handled, when gravity entrucking is unable to complete can by nitrogen cylinder to Dirt collecting tank pressurization carries out entrucking operation.

Technical field

The present invention relates to natural gas transmission and distribution technical fields, receive and dispatch ball for gas pigging more particularly, to a kind of EHS system and its operating method.

Background technique

On Urban High Pressure Natural Gas pipe network is the important component of natural gas transmission and distribution system, is that city gas conveys " aorta ".Inner Examination Technology on Pipeline can be under the situation for guaranteeing pipeline normal operation, by examining pipe device, data equipped with electronics The intelligent pig of acquisition, processing and storage system is run in the duct, completes the positioning to tube body defect, is pipeline accident Prevention and operation and maintenance provide scientific basis.Conventional pigging transmitting-receiving ball system does not consider the recycling to end-tidal gas, manages Natural gas carries out pressure release by the direct high point emptying of blow-down pipe in road, since pressure piping bore is larger, pressure is higher, because This, amount of diffusin is larger, has not only caused the huge waste of natural gas resource, but also there are natural gas fire and explosive risks, can also be to local air Environment pollutes；Conventional pigging receives ball system in the access blowdown of waste water caused by pigging hole, can not accomplish closed defeated It send, sewage flows over during usual pigging operations, pollutes to underground water and soil environment, and one can be also carried during blowdown Quantitative natural gas, it is understood that there may be natural gas fires risk.

Summary of the invention

In view of the shortcomings of the prior art, can reduce pigging transmitting-receiving ball exercise the present invention provides one kind makees natural gas diffusion amount, drop Caused environmental pollution is made in low pigging transmitting-receiving ball exercise, effectively avoids safety accident, ensures operator's personal safety, make Its EHS system and its operating method for gas pigging transmitting-receiving ball for meeting the requirement of EHS management system.

The present invention solves the technical solution that above-mentioned technical problem uses are as follows:

A kind of EHS system for gas pigging transmitting-receiving ball, including pigging receiving ball tube and dirt collecting tank, be separated by filtration Device and blow-down pipe, the pigging receiving ball tube is provided with recycling gas interface, and connects filter separator by recycling gas interface； The pigging receiving ball tube and filter separator are connect by closed conduit with dirt collecting tank；The pigging receiving ball tube, collection Dirty tank and filter separator are connect by pipeline with blow-down pipe.

Further, the pigging receiving ball tube passes through outer high pressure pipe network of going to the station to meet somebody outside twice stop valve.

Further, pigging receiving ball tube recycling gas interface is connected with filter separator air inlet by pipeline, The external pressure regulation metering system in the filter separator gas outlet.

Further, the sewage draining exit of pigging receiving ball tube, the sewage draining exit of filter separator and dirt collecting tank pass through close Stopped pipe road connects.

Further, the pigging receiving ball tube diffusion mouth, filter separator diffusion mouth access blow-down pipe through pipeline；Institute The dirt collecting tank diffusion mouth pressure stated is lower individually to access blow-down pipe through pipeline.

Further, the pigging receiving ball tube is used as external high-pressure air feed gas source when service, and receiving ball tube is without pigging Ball serve a ball function, this interface without.

Further, special hose is arranged in the dirt collecting tank liquid outlet, for connecting automobile groove tank car.

A kind of operating method of the EHS system for gas pigging transmitting-receiving ball comprising following steps:

(1) spherical pig is mobile from service end to ball end is received under manifold pressure effect, when spherical pig enters high pressure pipe network latter end Shi Kaiqi recycles gas interface valve, enables filter separator, and recycling gas makes after accessing pressure regulation metering system after filtering for user With, by release receive and dispatch ball system pressure, enter spherical pig in receiving ball tube；

(2) it is smoothly withdrawn to spherical pig, closes main pipeline twice stop valve, close recycling gas interface valve；Dirt collecting tank is opened to put After dissipating valve, receiving ball tube blowdown valve is slowly opened, sewage enters dirt collecting tank under pressure in receiving ball tube, and liquid stays in collection In dirty tank, gas is concentrated through blow-down pipe high point and is discharged；After sewage in receiving ball tube empties, the cutting of receiving ball tube sewage draining exit is closed Valve opens receiving ball tube diffusion valve and empties natural gas in container, opens receiving ball tube fast opening blind, after spherical pig is taken out, Single pigging operations are completed；

(3) it after sewage reaches certain amount in dirt collecting tank, is connected with special hose by sewage between dirt collecting tank and automobile groove tank car It is discharged into automobile groove tank car and transports and handled to sewage treatment plant, nitrogen cylinder can be passed through when gravity entrucking is unable to complete It pressurizes to dirt collecting tank and carries out entrucking operation.

Compared with prior art, the advantages of present invention has are as follows:

Only container decompression and sewage collecting have a small amount of natural gas to be discharged into atmosphere to this system in the process, compared with original device, row 90% or more can be high-volume reduced, the waste to natural gas resource can be greatly reduced, reduces the pollution to air environment；This system is put Air-dispersing body concentrates discharge using high point, and compared with original device having a large amount of natural gases to release in down blow hole, safety is significantly It improves；This system sewage is conveyed in a organized way by closed conduit, and sewage is transported after the collection of dedicated dirt collecting tank by dedicated groove tank car It send to sewage treatment plant and carries out specialized process, compared with original device is directly discharged into blowdown hole, can effectively avoid underground water money The pollution of source and soil.

Detailed description of the invention

Fig. 1 is structure principle chart of the invention.

Specific embodiment

Following further describes the present invention with reference to the drawings.

As shown in Figure 1, a kind of EHS system for gas pigging transmitting-receiving ball, including pigging receiving ball tube 1, dirt collection Tank 3, filter separator 4 and blow-down pipe 2；The pigging receiving ball tube 1 sends and receives for spherical pig, specifications parameter with Pigging pipe diameter and pressure match；4 filtering accuracy of filter separator is not less than 20 μm, for recycling the filtering of gas And purification；The dirt collecting tank 3 is not subject to internal pressure for storing sewage caused by pigging operations, container, and volume is that pigging is received 2-3 times of ball cylinder volume；High point of the blow-down pipe 2 for emptying gas concentrates discharge, different pressure levels emptying gas Preferred embodiment is to be independently accessed blow-down pipe 2, to avoid influencing each other；The pigging receiving ball tube 1 is provided with recycling gas interface 11, and filter separator 4 is connected by recycling gas interface 11；The pigging receiving ball tube 1 and filter separator 4 passes through closed Pipeline is connect with dirt collecting tank 3；Pigging receiving ball tube 1, dirt collecting tank 3 and the filter separator 4 is connected by pipeline and blow-down pipe 2 It connects.

Further, the pigging receiving ball tube 1 passes through outer high pressure pipe network 6 of going to the station to meet somebody outside twice stop valve 12, spherical pig By entering interior spherical pig receiving ball tube of standing herein, receives service and use twice stop valve 12, can avoid valves leakage influence and close Close effect.

Further, the pigging receiving ball tube 1 recycling gas interface 11 passes through pipeline phase with 4 air inlet of filter separator It connects, the external pressure regulation metering system 7 in 4 gas outlet of filter separator, recycling gas is by pressure regulation metering system 7 through pressure regulation and meter After amount for users to use.

Further, the sewage draining exit 8 of the pigging receiving ball tube 1, the sewage draining exit 9 of filter separator 4 and dirt collecting tank 3 are logical Closed conduit is crossed to connect.

Further, each container decompression passes through pipeline and summarizes to the concentration emptying of 2 high point of blow-down pipe, the pigging transmitting-receiving 1 diffusion mouth 10 of ball cylinder, 4 diffusion mouth 13 of filter separator access blow-down pipe 2 through pipeline；3 diffusion mouth of dirt collecting tank, 14 pressure It is lower individually to access blow-down pipe 2 through pipeline.

Further, the pigging receiving ball tube 1 is used as external high-pressure air feed gas source 5 when service, and receiving ball tube is without clear Pipe ball serve a ball function, this external interface without.

Further, the dirt collecting tank 3 sets inlet, liquid outlet, manual drain, access hole and safety valve etc., receives Service cylinder sewage is discharged into dirt collecting tank 3 by closed conduit to be collected, and the natural gas being carried along into is arranged by 2 high point of blow-down pipe It puts, special hose 31 is arranged in 3 liquid outlet of dirt collecting tank, for connecting automobile groove tank car.

A kind of EHS system for gas pigging transmitting-receiving ball of the invention, concrete operations process are as follows:

1, spherical pig is mobile from service end to ball end is received under manifold pressure effect, when spherical pig enters high pressure pipe network latter end (i.e. after the last one threeway) opens recycling gas interface valve 11, enables filtering separation device 4, and recycling gas connects after filtering Enter after pressure regulation metering system 7 for users to use, ball system pressure is received and dispatched by release, spherical pig is helped to can smoothly enter into transmitting-receiving ball In cylinder；

2, spherical pig will push large amount of sewage and enter in receiving ball tube 1；It is smoothly withdrawn to spherical pig, closes the cutting of main pipeline twice Valve 12 closes recycling gas interface valve 11；After opening 3 diffusion valve 14 of dirt collecting tank, 1 blowdown valve 8 of receiving ball tube, transmitting-receiving are slowly opened Sewage enters dirt collecting tank 3 under pressure in ball cylinder 1, and liquid stays in dirt collecting tank 3, and gas is concentrated through 2 high point of blow-down pipe and arranged It puts；After sewage in receiving ball tube 1 empties, 1 sewage draining exit stop valve 8 of receiving ball tube is closed, opening 1 diffusion valve 10 of receiving ball tube will Natural gas empties in container, opens 1 fast opening blind 15 of receiving ball tube, and after spherical pig is taken out, single pigging operations are completed；

3, it after sewage reaches certain amount in dirt collecting tank 3, is transported by automobile groove tank car to sewage treatment plant and carries out specialized process, It is connected between dirt collecting tank 3 and automobile groove tank car with special hose 31, nitrogen cylinder can be passed through when gravity entrucking is unable to complete It pressurizes to dirt collecting tank 3 and carries out entrucking operation.

Pigging transmitting-receiving ball system of the invention considers to be recycled latter end natural gas when designing, to produced by pigging Sewage carry out closed conveying and collection, the environmental pollution caused by pigging transmitting-receiving ball exercise is made can be substantially reduced, effectively avoid pacifying Full accident occurs, and ensures operator's personal safety.