CN105861025B - The retracting device and method of a kind of gas pipeline liquid light hydrocarbon - Google Patents
The retracting device and method of a kind of gas pipeline liquid light hydrocarbon Download PDFInfo
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- CN105861025B CN105861025B CN201610390795.0A CN201610390795A CN105861025B CN 105861025 B CN105861025 B CN 105861025B CN 201610390795 A CN201610390795 A CN 201610390795A CN 105861025 B CN105861025 B CN 105861025B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
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- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The present invention relates to a kind of retracting device of gas pipeline liquid light hydrocarbon and method.Described device includes：Low pressure storage tank, is separately installed with pressure detector and liquid level detector；High pressure blow-off pipe, it is accessed from top one end of low pressure storage tank, and the high pressure blow-off pipe is provided with urgent block valve A；Gas bleeder A and gas bleeder B, its import is accessed from the top of low pressure storage tank respectively, and its exit accumulates gas discharge manifold, and the gas discharge manifold accesses yard blowdown system；The bottom end connection of liquid header, its import and low pressure storage tank, it exports connected drainage branch pipe A and drain branch pipe B respectively.The method of the invention is that mixture is discharged into low pressure storage tank by high pressure blow-off pipe, leaves liquid, drains unnecessary gas, the liquid of low pressure storage tank is reclaimed by truck tank again, recycling, the method for the invention and device ensure the safe operation of gas pipeline, prevent from polluting environment.
Description
Technical field
The present invention relates to a kind of retracting device of gas pipeline liquid light hydrocarbon and method.
Background technology
The oil gas field ground gas handling system of Gas Pipeline Project upstream, often there is leakage, failure or even situation about damaging,
Liquid light hydrocarbon is caused to enter pipeline with gas, gas pipeline of the conveying containing liquid light hydrocarbon operationally, is particularly in blowdown
During process, usually because the reason for having liquid light hydrocarbon in gas, occur serious security incident and severe contamination environment.
The content of the invention
To ensure safety of the well head gas containing liquid light hydrocarbon in conduit running, particularly ensure gas pipeline in pigging
The safety that operation, filter are changed in the discharge process such as core, maintenance, reduces pollution environment, it is an object of the invention to provide one kind
The retracting device and method of gas pipeline liquid light hydrocarbon.
The purpose of the present invention is achieved through the following technical solutions：
A kind of retracting device of gas pipeline liquid light hydrocarbon, including：
Pressure detector and liquid level detector, the low pressure storage tank are separately installed with low pressure storage tank, the low pressure storage tank
Inside there is liquid；
High pressure blow-off pipe, the high pressure blow-off pipe accesses the low pressure storage tank, the height from top one end of low pressure storage tank
The outlet of pressure blow-off pipe reaches the low pressure storage tank bottom, and submerges below liquid level, and the high pressure blow-off pipe is cut provided with urgent
Disconnected valve A；
Gas bleeder A and gas bleeder B, gas bleeder A and gas the bleeder B import point
The low pressure storage tank is not accessed from the top of low pressure storage tank, the gas bleeder A is provided with safety valve, the gas discharge
Ball valve and gate valve are sequentially provided with branch pipe B, the gas bleeder A and gas bleeder B accumulate gas in its exit
Body discharge manifold, the gas discharge manifold accesses yard blowdown system, and the gas discharge manifold connects provided with automobile return-air
Mouthful；
Liquid header, the liquid header is provided with draining valve, the import of the liquid header and the bottom of low pressure storage tank
Portion one end is connected, the outlet difference connected drainage branch pipe A and drain branch pipe B of the liquid header, the outlet of the drain branch pipe A
Provided with snap joint A, the drain branch pipe B connections dredge pump, and the drain branch pipe B exit are provided with snap joint B.
Further, the top of the low pressure storage tank is provided with manhole.
Further, receiving ball tube or filter or separator or remittance tracheae are connected with before the high pressure blow-off pipe.
Further, the liquid having in the low pressure storage tank is consistent with the liquid that the high pressure blow-off pipe is discharged.
Further, the low pressure storage tank is closed.
Further, the pressure detector and the urgent block valve A are chain.
Further, the gas discharge manifold, which is got on the car, is provided with ball valve before return-air interface.
Further, ball valve is provided with the gas bleeder A before safety valve.
Further, it is provided with the gas bleeder A before gas discharge manifold is imported between the safety valve
Ball valve.
Further, it is respectively equipped with branch pipe valve on the drain branch pipe A and drain branch pipe B.
Further, the branch pipe valve on the drain branch pipe A is gate valve.
Further, branch pipe valve is equipped with before and after the dredge pump on the drain branch pipe B.
Further, the high pressure blow-off pipe is provided with EMER emergency block valve B.
The recovery method of liquid light hydrocarbon, including following step are carried out using the retracting device of described gas pipeline liquid light hydrocarbon
Suddenly：
Step 1, enter high by the mixture of the gas and liquid of receiving ball tube or filter or separator or remittance tracheae
Blow-off pipe is pressed, the mixture is discharged into low pressure storage tank, low pressure storage tank by high pressure blow-off pipe has liquid, and the high pressure
The outlet of dirty pipe reaches the low pressure storage tank bottom, and submerges below liquid level；
Step 2, the pressure in the pressure detector monitoring low pressure storage tank, when the pressure exceedes safety valve setting value
When, the mixture continues to be discharged into low pressure storage tank by high pressure blow-off pipe, and opens the safety valve on gas bleeder A, will
Gas is discharged into yard blowdown system by gas bleeder A；When the pressure continues to raise, more than the alarm for high voltage of setting
During value, urgent block valve is turned off, and opens the branch pipe valve on the safety valve and gas bleeder B, gas is led to respectively
Cross gas bleeder A and gas bleeder B is discharged into yard blowdown system；
Step 3, liquid level in the liquid level detector monitoring low pressure storage tank, discharges liquid, when the liquid by liquid header
When position exceedes the low liquid level warning value of setting, draining valve is closed, stops discharge opeing.
Further, in step 3, using the pressure in low pressure storage tank, liquid in low pressure storage tank is arranged by drain branch pipe A
Go out.
Further, in step 3, when the pressure exceedes the low pressure alarming value of setting, start dredge pump, pass through discharge opeing
Branch pipe B discharges liquid in low pressure storage tank.
Beneficial effects of the present invention are：
Device of the present invention is to be mixed gas-liquid by the high pressure blow-off pipe of receiving ball tube, filter, separator or remittance tracheae
Compound is discharged into closed low pressure storage tank, leaves liquid, drains unnecessary gas, then by the liquid of truck tank recovery low pressure storage tank
Body, recycling, it is ensured that the safe operation of gas pipeline prevents from polluting environment.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the retracting device of gas pipeline liquid light hydrocarbon of the present invention；
Fig. 2 is the planar structure schematic diagram of the retracting device of gas pipeline liquid light hydrocarbon described in the embodiment of the present invention 1；
Wherein, the urgent block valve A of 1-, 2- low pressure storage tanks, 3- manholes, 4- safety valves, 5- dredge pumps, 6- drain branch pipes A, 7-
High pressure blow-off pipe, 8- drain branch pipes B, 9- liquid header, 10- snap joints A, 11- snap joint B, 12- gas discharge pipe A,
13- gas bleeder B, 14- EMER emergency block valve B, 15- gas discharge manifolds.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
A kind of retracting device of gas pipeline liquid light hydrocarbon, including：
Low pressure storage tank 2, the low pressure storage tank 2 to be closed, be separately installed with the low pressure storage tank 2 pressure detector and
Liquid level detector, the top of the low pressure storage tank 2, which is provided with manhole 3, the low pressure storage tank 2, has liquid, with the high pressure
The liquid that dirty pipe 7 is discharged is consistent；The volume of low pressure storage tank 2 can at least accommodate a yard blowdown flow rate, and conventional volume is 5m3,
10m3, 20m3, according to the size and type selecting of yard, generally, small-sized point defeated station selects 5m3, large-scale point defeated station or pigging
Select 10m in station3, compressor station selects 20m3。
High pressure blow-off pipe 7, the high pressure blow-off pipe 7 accesses the low pressure storage tank 2, institute from top one end of low pressure storage tank 2
The outlet for stating high pressure blow-off pipe 7 reaches the bottom of low pressure storage tank 2, and submerges below liquid level, it is ensured that the liquid of high pressure blow-off pipe 7
Do not taken away by gas, the high pressure blow-off pipe 7 is provided with urgent block valve A1, the pressure detector and the urgent block valve
A1 is chain, when the pressure exceedes the alarm for high voltage value of setting, turns off urgent block valve, it is ensured that low pressure storage tank 2 not superpressure, peace
Row for the national games.
Gas bleeder A12 and gas bleeder B13, gas bleeder A12 and gas the bleeder B13
Import access the low pressure storage tank 2 from the top of low pressure storage tank 2 respectively, the gas bleeder A12 is provided with safety valve
Ball valve and gate valve, the gas bleeder A12 and gas bleeder are sequentially provided with 4, the gas bleeder B13
B13 accumulates gas discharge manifold 15 in its exit, and the gas discharge manifold 15 accesses yard blowdown system, the gas
Discharge manifold 15 is provided with automobile return-air interface；
Liquid header 9, the liquid header 9 is provided with draining valve, import and the low pressure storage tank 2 of the liquid header 9
Bottom end connection, the liquid header 9 outlet difference connected drainage branch pipe A6 and drain branch pipe B8, the drain branch pipe
Branch pipe valve is respectively equipped with A6 and drain branch pipe B8, the outlet of the drain branch pipe A6 is provided with snap joint A10, the discharge opeing
Branch pipe B8 connections dredge pump 5, and the exit of the drain branch pipe B8 is provided with snap joint B11, the snap joint A10 and fast
Quick coupling B11 connects truck tank respectively, wherein the snap joint A10 is used as water filling note ammonia mouthful.
Receiving ball tube or filter or separator or remittance tracheae are connected with before the high pressure blow-off pipe 7.
It is preferred that, the high pressure blow-off pipe 7 is provided with EMER emergency block valve B14.Vapour in the gas discharge manifold 15
Ball valve is provided with before car return-air interface.Ball valve is provided with the gas bleeder A12 before safety valve 4.The gas bleeder
A12 is upper to be provided with ball valve before gas discharge manifold 15 is imported between the safety valve 4.The drain branch pipe A6 and drain branch pipe
Branch pipe valve is respectively equipped with B8.Branch pipe valve on the drain branch pipe A6 is gate valve.Described on the drain branch pipe B8
Branch pipe valve is equipped with before and after dredge pump 5.
The recovery method of liquid light hydrocarbon, including following step are carried out using the retracting device of described gas pipeline liquid light hydrocarbon
Suddenly：
Step 1, enter high by the mixture of the gas and liquid of receiving ball tube or filter or separator or remittance tracheae
Blow-off pipe is pressed, the mixture is discharged into low pressure storage tank, low pressure storage tank by high pressure blow-off pipe has liquid, and the high pressure
The outlet of dirty pipe reaches the low pressure storage tank bottom, and submerges below liquid level；
Step 2, the pressure in the pressure detector monitoring low pressure storage tank, when the pressure exceedes safety valve setting value
When, the mixture continues to be discharged into low pressure storage tank by high pressure blow-off pipe, and opens the safety valve on gas bleeder A, will
Gas is discharged into yard blowdown system by gas bleeder A；When the pressure continues to raise, more than the alarm for high voltage of setting
During value, urgent block valve is turned off, and opens the branch pipe valve on the safety valve and gas bleeder B, gas is led to respectively
Cross gas bleeder A and gas bleeder B is discharged into yard blowdown system；
Step 3, liquid level in the liquid level detector monitoring low pressure storage tank, discharges liquid, when the liquid by liquid header
When position exceedes the low liquid level warning value of setting, draining valve is closed, stops discharge opeing.The liquid of discharge, is hauled with truck tank, is returned
Receipts processing.
Wherein, in step 3, using the pressure in low pressure storage tank, do not start dredge pump, stored up low pressure by drain branch pipe A
Pot liquid is discharged；Or when the pressure exceedes the low pressure alarming value of setting, start dredge pump, will be low by drain branch pipe B
Pressure storage pot liquid discharge.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of retracting device of gas pipeline liquid light hydrocarbon, it is characterised in that including：
Pressure detector and liquid level detector, the low pressure storage are separately installed with low pressure storage tank (2), the low pressure storage tank (2)
There is liquid in tank (2)；
High pressure blow-off pipe (7), the high pressure blow-off pipe (7) accesses the low pressure storage tank from top one end of low pressure storage tank (2)
(2), the outlet of the high pressure blow-off pipe (7) reaches the low pressure storage tank (2) bottom, and submerges below liquid level, the high pressure
Dirt pipe (7) is provided with urgent block valve A (1)；
Gas bleeder A (12) and gas bleeder B (13), the gas bleeder A (12) and gas bleeder B
(13) import is accessed on the low pressure storage tank (2), the gas bleeder A (12) from the top of low pressure storage tank (2) respectively
Provided with safety valve (4), the gas bleeder B (13) is provided with branch pipe valve, the gas bleeder A (12) and gas
Bleeder B (13) to be accumulated in its exit and importing gas row on gas discharge manifold (15), the gas bleeder A
Put and be provided with ball valve before house steward between the safety valve, the gas discharge manifold (15) accesses yard blowdown system, the gas
Body discharge manifold (15) is provided with automobile return-air interface；
Liquid header (9), the liquid header (9) is provided with draining valve, the import of the liquid header (9) and low pressure storage tank
(2) bottom end connection, the outlet difference connected drainage branch pipe A (6) and drain branch pipe B (8) of the liquid header (9), institute
The outlet for stating drain branch pipe A (6) is provided with snap joint A (10), drain branch pipe B (8) the connection dredge pump (5), and the row
Liquid branch pipe B (8) exit is provided with snap joint B (11).
2. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the low pressure storage tank
(2) top is provided with manhole (3).
3. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the high pressure blow-off pipe
(7) receiving ball tube or filter or separator or remittance tracheae are connected with before.
4. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the low pressure storage tank
(2) liquid having in is consistent with the liquid that the high pressure blow-off pipe (7) is discharged.
5. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the low pressure storage tank
(2) to be closed.
6. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the drain branch pipe A
(6) and on drain branch pipe B (8) it is respectively equipped with branch pipe valve.
7. the retracting device of gas pipeline liquid light hydrocarbon according to claim 1, it is characterised in that the high pressure blow-off pipe
(7) it is provided with EMER emergency block valve B (14).
8. carry out returning for liquid light hydrocarbon using the retracting device of the gas pipeline liquid light hydrocarbon described in any of the above-described claim
Receiving method, it is characterised in that comprise the following steps：
Step 1, high pressure is entered by the mixture of the gas and liquid of receiving ball tube or filter or separator or remittance tracheae
Dirt pipe, the mixture is discharged into low pressure storage tank, low pressure storage tank by high pressure blow-off pipe has liquid, and the high pressure blow-off pipe
Outlet reach the low pressure storage tank bottom, and submerge below liquid level；
Step 2, the pressure in the pressure detector monitoring low pressure storage tank, when the pressure exceedes safety valve setting value, institute
State mixture to continue to be discharged into low pressure storage tank by high pressure blow-off pipe, and open the safety valve on gas bleeder A, gas is led to
Cross gas bleeder A and be discharged into yard blowdown system；When the pressure continue raise, more than setting alarm for high voltage value when,
Urgent block valve is turned off, and opens the branch pipe valve on the safety valve and gas bleeder B, gas is passed through into gas respectively
Bleeder A and gas bleeder B are discharged into yard blowdown system；
Step 3, liquid level in the liquid level detector monitoring low pressure storage tank, liquid is discharged by liquid header, when the liquid level is super
When crossing the low liquid level warning value of setting, draining valve is closed, stops discharge opeing.
9. the recovery method of liquid light hydrocarbon according to claim 8, it is characterised in that in step 3, using in low pressure storage tank
Pressure, liquid in low pressure storage tank is discharged by drain branch pipe A.
10. the recovery method of liquid light hydrocarbon according to claim 8, it is characterised in that in step 3, when the pressure is super
When crossing the low pressure alarming value of setting, start dredge pump, discharged liquid in low pressure storage tank by drain branch pipe B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390795.0A CN105861025B (en) | 2016-06-02 | 2016-06-02 | The retracting device and method of a kind of gas pipeline liquid light hydrocarbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390795.0A CN105861025B (en) | 2016-06-02 | 2016-06-02 | The retracting device and method of a kind of gas pipeline liquid light hydrocarbon |
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| Publication Number | Publication Date |
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| CN105861025A CN105861025A (en) | 2016-08-17 |
| CN105861025B true CN105861025B (en) | 2017-07-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106838618B (en) * | 2017-03-29 | 2023-01-24 | 中国石油天然气集团有限公司 | Online automatic waste fitting discharging of gas transmission pipeline station yard |
| CN106759779B (en) * | 2017-03-29 | 2019-01-29 | 中国石油天然气集团公司 | A kind of online blowdown apparatus and online method for discharging pollution applied to gas pipeline yard |
| CN111720738A (en) * | 2020-06-08 | 2020-09-29 | 中国神华煤制油化工有限公司 | Chemical device waste liquid collecting system and collecting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5483906A (en) * | 1977-12-19 | 1979-07-04 | Showa Oil | Method and apparatus for recovering volatile hydrocarbon from gas containig volatile hydrocarbon |
| CN100347272C (en) * | 2006-01-20 | 2007-11-07 | 华南理工大学 | Light hydrocarbon separating method for liquefied natural gas with peak regulating function |
| CN102895836B (en) * | 2012-09-18 | 2014-11-26 | 中国石油集团东北炼化工程有限公司吉林设计院 | Oil gas recovering device for gasoline station |
| CN202803057U (en) * | 2012-09-18 | 2013-03-20 | 中国石油集团东北炼化工程有限公司吉林设计院 | Oil vapor recovery device for gas station |
| CN205676420U (en) * | 2016-06-02 | 2016-11-09 | 中国石油天然气集团公司 | A kind of retracting device of gas pipeline liquid light hydrocarbon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170627 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: China National Petroleum Corp. Applicant after: China Petroleum Pipeline Engineering Co.,Ltd. Applicant after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant before: China National Petroleum Corp. Applicant before: CHINA PETROLEUM PIPELINE BUREAU Applicant before: CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100120 Xicheng District six paw Kang in Beijing City Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: China National Petroleum Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190711 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: CHINA NATIONAL PETROLEUM Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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| TR01 | Transfer of patent right |