CN206535833U - Discarded crude oil pipeline clears up special pigging train - Google Patents

Discarded crude oil pipeline clears up special pigging train Download PDF

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Publication number
CN206535833U
CN206535833U CN201720035004.2U CN201720035004U CN206535833U CN 206535833 U CN206535833 U CN 206535833U CN 201720035004 U CN201720035004 U CN 201720035004U CN 206535833 U CN206535833 U CN 206535833U
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China
Prior art keywords
wiper
pipeline
group
leather cup
discarded
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CN201720035004.2U
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Chinese (zh)
Inventor
徐兴斌
刘素平
张金立
王洪涛
徐昕
张翰元
刘吴博
黄利峰
申斌刚
吴方杰
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Rich High-Tech Co Ltd
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Rich High-Tech Co Ltd
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Abstract

Special pigging train is cleared up the utility model discloses a kind of discarded crude oil pipeline, by four groups of wipers and it is implanted sequentially the pigging train constituted to the scavenger specially fluid column four groups of wipers, compressed nitrogen gas column and clean water fluid column, the pigging train is slowly moved in the pipeline for needing to clean, and sufficiently immersion and thoroughly cleaning are carried out to the residue for sticking to inner-walls of duct.The utility model is cleared up discarded crude oil pipeline using physical chemistry integrated processes, can remote monitoring, the gait of march of Intelligent adjustment wiper, the accurate dissolution time for determining pipe cleaning liquid inside to residue, it is ensured that the cleaning performance of pipeline.Residue and cleaning waste liquid in pipeline are not landed collection processing respectively, are realized and are prevented pollution from source.Scavenger specially can ensure that the fastness residue in discarded pipe efficiently, quickly, thoroughly dissolves, and coordinate clean water cleaning, reached after making discarded pipe cleaning in pipe without wax, without greasy dirt, without dirt, the effect of metal true qualities can be presented.

Description

Discarded crude oil pipeline clears up special pigging train
Technical field
The utility model is related to the treatment technology of petrochemical industry pipeline, is cleared up more particularly, to a kind of discarded crude oil pipeline Special pigging train.
Background technology
Pipeline Years Of Service reaches that the service life upper limit or pipeline continue to convey the benefit of oil gas far below conveying cost And pipeline does not have during other potential uses, it is necessary to be discarded to pipeline.Since China built from first crude oil pipeline in 1958, oil The development of feed channel is maked rapid progress, and " 12 " end China Land petroleum pipeline is up to about 10 × 104km.Current many pipes Road is longer due to run time, and aging is serious, and safe and environment-friendly accident happens occasionally, and with the fast development of China's economic, Pipeline by way of geographical, geomorphological environment also there occurs great variety, some pipelines are also gradually by living area, industrial area and planning region Covering.Accident once occurs for these pipelines, it will causes huge economic loss and produces larger social influence.So pipeline The problem of waste treatment also turns into outstanding day by day.
Discarded crude oil pipeline, which is handled, includes the removing of dirt in pipeline, the recycling of pipeline residual thing and cleaning raffinate, Cleaning performance checking, innoxious filling of pipeline etc..Current China goes back to the discarded research of relevant pipeline, practice compared with external It is less, the pipeline waste treatment technical system of systematic science is not yet formed, the standard criterion also without pipeline waste treatment, pipeline gives up Abandon Processing Technology Research and be substantially at the starting stage.
Wiper being used current China more(Straight-plate-type wiper or the hybrid wiper of straight panel+leather cup)To discarding crude oil The residue of inner-walls of duct is cleared up, i.e., push away single wiper by gases at high pressure from pipeline service cylinder transmitting wiper Dynamic wiper is moved to the ball collecting chamber of pipeline, and inner-walls of duct is cleared up using the magnitude of interference of wiper.Due to discarded pipe Interior residue complicated component, along with the time of throwing aside is long, property is also very complicated, stronger to the sticking ratio of tube wall, clears up one section Pipeline generally requires No. seven ~ eight wipers of transmitting, and clearance time is long, and energy resource consumption is big;Simultaneously because in wiper traveling process Be hampered deformation, it is impossible to reaches and is fully sealed, and also results in front and rear medium mixing, cleaning effect is influenceed, if there is forward end gas When being mixed with rear portion gases at high pressure, also there is the danger exploded.
The content of the invention
The purpose of this utility model is that providing a kind of discarded crude oil pipeline clears up special pigging train, not only reduces Clearance time, is also greatly reduced energy resource consumption during pigging, it is ensured that the pipeline after pigging is met needed for innoxious filling Technical requirements.
To achieve the above object, the utility model can take following technical proposals:
Discarded crude oil pipeline described in the utility model clears up special pigging train, including is positioned in discarded crude oil pipeline Wiper, the wiper includes being spaced straight-plate-type wiper, the first group of hybrid pigging of straight panel+leather cup of transmitting successively Device, second group of hybrid wiper of straight panel+leather cup and the 3rd group of hybrid wiper of straight panel+leather cup;In the straight-plate-type pigging Cleaning fluid column is filled with tube chamber between device and first group of hybrid wiper of straight panel+leather cup, in first group of straight panel+skin Compressed nitrogen gas column is filled with tube chamber between the hybrid wiper of bowl and second group of hybrid wiper of straight panel+leather cup, in institute State and be filled with the tube chamber between second group of hybrid wiper of straight panel+leather cup and the 3rd group of hybrid wiper of straight panel+leather cup Clean water column.
The length of the cleaning fluid column is 15 ± 1m;The length of the compressed nitrogen gas column and clean water column is 20 ± 1m.
Multigroup wiper is used in combination the utility model, is filled successively in the tube chamber between two adjacent groups wiper clear Washing lotion post, compressed nitrogen gas column and clean water column, are carried out efficiently, soon using fluid column is cleaned to the fastness residue in discarded pipe Speed, thoroughly dissolve, coordinate compressed nitrogen gas column effectively sealed, finally cleaned using clean water column, disposably clear up Discarded pipe inwall can be made to reach no wax, without greasy dirt, without dirt, the effect of metal true qualities is presented, scavenging period is greatly reduced With the energy and energy expenditure(1km discarded pipes are cleaned, scavenging period can be reduced to 2.5h from 5h).The utility model is using physico Method joint is cleared up, can remote monitoring, the gait of march of Intelligent adjustment wiper, it is accurate to determine pipe cleaning liquid inside to residual The dissolution time of thing is stayed, it is ensured that the cleaning performance of pipeline, while the residual fluid in pipeline and cleaning waste liquid can also be distinguished Collection processing is not landed, is realized and is prevented pollution from source.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is on-the-spot schematic when using the utility model operation.
Embodiment
More detailed explanation is done to the utility model below in conjunction with the accompanying drawings.
Such as Fig. 1,2, discarded crude oil pipeline described in the utility model clears up special pigging train, including is spaced transmitting successively Straight-plate-type wiper 2, the hybrid wiper 3 of first group of straight panel+leather cup, second group of straight panel+leather cup in discarded crude oil pipeline 1 Hybrid wiper 4 and the 3rd group of hybrid wiper 5 of straight panel+leather cup;In straight-plate-type wiper 2 and first group of straight panel+leather cup Cleaning fluid column 6 is filled with tube chamber between hybrid wiper 3, in the hybrid wiper 3 and second of first group of straight panel+leather cup Compressed nitrogen gas column 7 is filled with tube chamber between the group hybrid wiper 4 of straight panel+leather cup, it is hybrid in second group of straight panel+leather cup Clean water column 8 is filled with tube chamber between wiper 4 and the 3rd group of hybrid wiper 5 of straight panel+leather cup;To ensure cleaning effect Really, the length of cleaning fluid column 6 is 15 ± 1m;The length of compressed nitrogen gas column 7 and clean water column 8 is 20 ± 1m.
When clearing up discarded pipe, connected respectively at the two ends in discarded crude oil pipeline first wiper service cylinder and Ball collecting chamber, then according to fouling condition in pipeline, including dirty thickness, hardness, distribution and character, prepare scavenger specially stand-by;It is accurate Standby one group of straight-plate-type wiper and three groups of hybrid wipers of straight panel+leather cup are stand-by;
Straight-plate-type wiper 2 is put into wiper service cylinder first, gases at high pressure are promoted the after its 15m or so of moving ahead The hybrid wiper 3 of one group of straight panel+leather cup is put into, and is then filled at the top of wiper service cylinder into pipeline section space therebetween Cleaning agent is noted, cleaning agent is formed 15m or so cleaning fluid column 6 full of pipeline section space;Then high pressure nitrogen is used by straight-plate-type Wiper 2, cleaning fluid column 6 and the hybrid wiper 3 of first group of straight panel+leather cup be pushed into pipeline after 20m or so, then successively between Every loading the hybrid wiper 4 of second group of straight panel+leather cup and the 3rd group of hybrid wiper 5 of straight panel+leather cup, now, first The pressure of 20m or so length is formed between the group hybrid wiper 3 of straight panel+leather cup and the hybrid wiper 4 of second group of straight panel+leather cup Contracting nitrogen post 7;Then again at the top of wiper service cylinder to the hybrid wiper 4 of second group of straight panel+leather cup and the 3rd group of straight panel+ Filling clean water in tube chamber between the hybrid wiper 5 of leather cup, forms the clean water column 8 of 20m or so length, now in pipeline It is interior to be formed by straight-plate-type wiper 2, cleaning fluid column 6, the hybrid wiper 3 of first group of straight panel+leather cup, compressed nitrogen gas column 7, second The pigging row that the hybrid wiper 4 of group straight panel+leather cup, clean water column 8, the hybrid wiper 5 of the 3rd group of straight panel+leather cup are constituted Car.
Agent can be cleaned for dirt in guarantee pipeline fully to dissolve, the speed and institute that pigging train is moved in pipeline are in place The monitoring put, can be completed by tele-control system, generally, and the speed of service of pigging train is maintained at 0.5m/s or so, Motive force is no more than 1.0 MPa.
Under the promotion of pressure-air, the slow ball collecting chamber to the discarded pipe other end of pigging train is moved, one group of straight panel Formula wiper and three groups of hybrid wipers of straight panel+leather cup take out from ball collecting chamber successively, complete the clear of this section of discarded crude oil pipeline Reason.The residue waste liquid and cleaning aqueous waste solution cleaned out can not land and be reclaimed, and through professional treatment, environment will not be made Into secondary pollution.
Using pipeline section of the pigging train of the present utility model to certain domestic discarded oil line 1km length(DN700)Carry out residual Thing is stayed to clean, cleaning quality has been reached in pipe without wax, without greasy dirt, without dirt, sees the effect of metal true qualities.

Claims (2)

1. a kind of discarded crude oil pipeline clears up special pigging train, including launches to discarded crude oil pipeline(1)Interior wiper, its It is characterised by:The wiper includes spaced straight-plate-type wiper successively(2), first group of straight panel+leather cup it is hybrid clear Pipe device(3), second group of hybrid wiper of straight panel+leather cup(4)With the 3rd group of hybrid wiper of straight panel+leather cup(5);Described Straight-plate-type wiper(2)With first group of hybrid wiper of straight panel+leather cup(3)Between tube chamber in be filled with cleaning fluid column(6), In the hybrid wiper of first group of straight panel+leather cup(3)With second group of hybrid wiper of straight panel+leather cup(4)Between pipe Intracavitary is filled with compressed nitrogen gas column(7), in the hybrid wiper of second group of straight panel+leather cup(4)With the 3rd group of straight panel+leather cup Hybrid wiper(5)Between tube chamber in be filled with clean water column(8).
2. discarded crude oil pipeline according to claim 1 clears up special pigging train, it is characterised in that:The cleaning fluid column (6)Length be 15 ± 1m;The compressed nitrogen gas column(7)With clean water column(8)Length be 20 ± 1m.
CN201720035004.2U 2017-01-12 2017-01-12 Discarded crude oil pipeline clears up special pigging train Active CN206535833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720035004.2U CN206535833U (en) 2017-01-12 2017-01-12 Discarded crude oil pipeline clears up special pigging train

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Application Number Priority Date Filing Date Title
CN201720035004.2U CN206535833U (en) 2017-01-12 2017-01-12 Discarded crude oil pipeline clears up special pigging train

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108994015A (en) * 2018-09-10 2018-12-14 李得恩 The cleaning method of pipeline
CN114147011A (en) * 2020-09-04 2022-03-08 中国石油天然气股份有限公司 Blockage relieving method for salt crystallization blockage of natural gas pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108994015A (en) * 2018-09-10 2018-12-14 李得恩 The cleaning method of pipeline
CN114147011A (en) * 2020-09-04 2022-03-08 中国石油天然气股份有限公司 Blockage relieving method for salt crystallization blockage of natural gas pipeline

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