CN1912450A - Control method for leakage of finished oil pipeline - Google Patents
Control method for leakage of finished oil pipeline Download PDFInfo
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- CN1912450A CN1912450A CN 200510090147 CN200510090147A CN1912450A CN 1912450 A CN1912450 A CN 1912450A CN 200510090147 CN200510090147 CN 200510090147 CN 200510090147 A CN200510090147 A CN 200510090147A CN 1912450 A CN1912450 A CN 1912450A
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- anchor clamps
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Abstract
A method for controlling leakage of oil product pipeline includes detecting leakage point and its peripheral environment, placing fire fighting device and repairing unit near leakage point on windward place, connecting drainage pipe to oil tank vehicle, spraying fire extinguishing foam and powder to cover ground with leakage oil, erecting drainage valve and clamp for draining oil, plugging leakage hole when oil pipe leakage is stopped, removing off insulation layer hole when oil pipe leakage is stopped, removing off insulation layer and grinding pipe to expose fresh metal then welding sealer on leakage point.
Description
Technical field
The present invention is the controlling method to leakage of finished oil pipeline.Relate to the pipe-line system technical field.
Background technique
In general working pressure is big owing to processed oil pipeline, the particularly effumability of product oil, easy mobility, flammability, make the harmfulness and the risk of leakage of finished oil pipeline accident very big, if leaking in a large number, not effectively control and leak stopping means in the short time after leakage accident takes place, product oil cause the possibility of secondary disaster generations such as on fire, blast and environmental pollution very big.But because of the particularity of product oil, the complete blocking method of a cover of Technique of Crude Oil Transport Pipeline Leak is inapplicable fully, must research one overlap the controlling method that is fit to leakage of finished oil pipeline, with the loss that reduces of maximum possible.
Summary of the invention
The objective of the invention is to invent a kind of controlling method of effective, reliable leakage of finished oil pipeline.
The present invention is on the basis that has taken into full account the product oil characteristic, and the controlling method of the leakage of finished oil pipeline of proposition is to follow these steps to carry out successively:
Enter on-the-spot preceding earlier to leakage point and detection of surrounding environment do or estimation;
Behind the scene with all vehicles, equipment left alone without help be placed on ground do not have leak oil apart from the nearest weather of leakage point;
Pipeline is connected with the fuel tank installation;
Remove, cover fire-extinguishing foam or fire-fighting powder people and equipment near will on the ground that leakage oil is arranged, spraying earlier before the leakage point, or press with earth mulch; Must take superfine fire prevention measure after entering the scene; Personnel must take protective measures;
The drainage type anchor clamps are installed on the pipeline, make leakage hole line-up jig draining hole, install being connected between anchor clamps and the drainage pipeline;
Continuing spray around the leakage point removes fire-extinguishing foam or fire-fighting powder or with soil all is had the place covering of leaking oil;
Open the drainage of drainage valve, after fuel tank oil is full, closes valve and change another fuel tank and continue drainage, former low till the pressure that is fit to shutoff up to ducted pressure;
Select conventional method shutoff operation for use.
Because it is exactly its effumability, easy mobility, flammability and explosive that product oil is different from the main point of crude oil, the key of this method is exactly this hang-up of control leakage under the preceding topic of safety.Therefore, if the calm and diffusing injection of leakage oil of leak scene in said method, the Volatile Gas of oil is stretched and can not be distributed on every side at leakage point, and it is breakneck implementing operation in this case, must aim at the blowing of injection oil from people and the close direction of equipment with blower, Volatile Gas is left.Certainly from the angle of environmental protection, free from environmental pollution in order to make Volatile Gas, preferably adopt air-breathing way, a Volatile Gas air vesicle of suction or other containers are treated with reprocessing, do so certainly and want cost high.The repairing personnel reach the spot vehicle in this method, equipment is left alone without help to be placed on where this is the problem that at first will solve, rush to repair certain hope and will closely arrive certain distance from leakage point, but actually can be close, go before must dispatching officers in advance to do in detail, detect accurately or estimation, the project that detects has wind direction, wind-force, temperature, humidity, the pasta that lands is long-pending, leak the oil spurts height, spray the oil column thickness, whether having looses sprays, near Volatile Gas content in the air leakage point, leakage oil spurts height wherein and injection oil column thickness are because of being difficult to accurate the detection, can only estimate, make personnel in view of the above, the left alone without help optimum position of putting of vehicle and equipment, its principle are will be at the weather of leakage point, ground does not have the oil of leakage, the content of Volatile Gas is less than the distance of 5% suitable operation in the air; If the Volatile Gas content of oil is higher than 10% in on-the-spot calm, high humidity, temperature height, the air, just must aim at and spray the oil column direction and dry with blower, after reaching mentioned above principle, enter left alone without help putting a little again.Connect by the in-line of second step after arriving left alone without help put fuel tank.The 3rd step was before personnel enter the leakage point place, will handle the leakage oil on ground earlier, and product oil is unlike crude oil, the oil that lands infiltrates in the soil soon, can't reclaim at that time, can only preferably spray and remove fire-extinguishing foam or fire-fighting powder with the way that covers, as covering with soil, definitely can not fetch earth on the spot,, contain that the container of soil can not be with metal even if fetch earth from afar, in the soil stone can not be arranged, can not be during covering from highly falling down more than the 10cm; Personnel and equipment enter the leakage point place and must strict do by superfine fire protection regulation, be that personnel will wear the full protective clothes of antistatic, wear respirator or band oxygen cylinder and oxygen face mask, do not have the object that kindling material, fire maker, small electric apparatus, mobile phone etc. may produce spark on one's body, wear rubber boots; Vehicle must not leave nearly leakage point place, and the equipment of no rubber tire must not mop floor, must not nakedly put on the ground, must fill up rubber cushion; Equipment must not run foul of each other, collide ground, collision pipeline and annex thereof.The 4th step was that the drainage anchor clamps are installed, and this is the step of most critical, but was needing the pipeline with around the leakage point to clear up before, made this segment pipe exposed with civilian dress drainage anchor clamps, and the way of cleaning can only be that high pressure water dashes, and then mud is extracted out again; In general working pressure is big owing to processed oil pipeline, even if after leaking, can close leakage point circuit block valve up and down, it is remaining to build the pressure or static pressure that the pipeline depth displacement produces all might make leakage point still spray oil, so palpus SC when the drainage anchor clamps are installed, except the drainage anchor clamps meet the requirements, the anchor clamps centrally aligned should be sprayed oil column during installation detains from top to bottom, can not be inclined to one side, otherwise easy seven askew eight oblique with anchor clamps tops when injection pressure is big, not only difficulty is detained, and the collision of anchor clamps and pipeline and annex thereof also easily takes place, accident susceptibility, if artificial the installation, four people's operations will be arranged at least, and wherein two people lift anchor clamps, and a people is helping to grasp the direction of detaining, another people lifts the drainage pipeline, waits to buckle well every limit two people of back pipeline and is responsible for installation, tight clip; When the drainage anchor clamps are installed, still must around leakage point, spray remove fire-extinguishing foam or fire-fighting powder, be extended to beginning drainage after installing and must spray not left alone without helply and remove, till all will leaking the oil covering; The 5th step was drainage, fastened leakage point at the drainage anchor clamps and began just can open the drainage valve, allowed injection oil flow in fuel tank, fuel tank fill changeable another, when leaking oil pressure hour, be to accelerate drainage speed, but turn on pump is taken out, up to leak oil pressure little when not outbound flowing till; To this moment just dismountable drainage anchor clamps carry out the 6th the step plugging operations, the method of leak stopping is decided by the concrete condition of leakage point, as only being the punching of corrosion failure or stolen, just can adopt simple patch method in the external anti-corrosion layer and the good back of polishing of thoroughly removing leakage oil, the stifled good Leak hole on the pipeline and removing pipeline, cover Leak hole and pipeline welding gets final product with a block plate; Adopt the high pressure punch device as the oil stealer, so, or also used the said method shutoff after excising this stolen equipment, simply cover in the lump together with stolen equipment and be welded in the inside with the crude oil pipeline plugging device, this method saves time, and can resume production as early as possible, reduces economic loss.After this be that arrangement is on-the-spot, restore to the original state that special the removing landed oil and recovered ecotope, as much as possible reduces the potential risk to the pollution or the pollution of environment.Landing the removing of oil and recovery method is to lead to one puddle, distant place with fortifield village's low bank between fields landing oil periphery, begin to wash away oily soil layer from the limit, puddle with high pressure water towards the puddle, move always and oily soil layer all washed away and rush in the puddle, the oil face that just floats on the water just can return from the hole and oil slick to be collected Come and deal with in addition or use it for anything else.As for recovering ecological environment problem,, get final product according to general way processing at pollution level.
Embodiment
Embodiment. lift this example the specific embodiment of the present invention is described.This example is the simulation of being done on outdoor built on stilts Φ 165mm, long 500m wave circuit, carrying oil product is No. 10 diesel oil, working pressure 10Mpa during experiment, and there is block valve at two ends on the circuit, middle lowest part is installed a band in advance and is pressed punch device, and remote control valve is arranged on it.The experiment beginning, remote control valve is opened in remote control, pipeline oil spout, the high 10m of oil column; Breakdown gang arrives in the time of 10 minutes, at first close circuit two ends block valve, the left alone without help weather at distance leakage point 50m of personnel and equipment sends someone earlier to detect near the leakage point, recording on-the-spot temperature is 26 ℃, humidity 60%, three grades of wind-force, the content of gasoline volatilization gas is 30% in the air, spray the high about 2m of oil column, the about 30cm of oil column circular section diameter, ground has lands oil apart from the distance of leakage point: weather 5m, leeward 8m; Rapid pipe joint, powder-type fire extinguisher 20 tools, drainage anchor clamps one cover, welding equipment one cover, plugging device one cover that one of 10 tons of fuel tank, corrugated flexible hose 60m and the two ends of band oil well pump are arranged to on-the-spot equipment, one of water-tank lorry, in these equipment, fuel tank has been done car load ground connection, the powder-type fire extinguisher outsourcing rubber sleeve, the drainage anchor clamps adopt nonmetallic material, the outer kiss-coating of its clip; The repairing personnel all wear the full siren suit of antistatic, pendant Tapes oxygen cylinder and oxygen face mask; Flexible pipe is connected with the axle tank car, land oil spray and remove covering ground with powder-type fire extinguisher, progressively the leakage point place is removed in spray from outside to inside, another group four-player carries the drainage anchor clamps and flexible pipe follows up subsequently, when the leakage point place is removed in the fire-fighting powder spray, lift the drainage anchor clamps by two people, one people holds gladhand and prepares to install, when the drainage anchor clamps are other to leakage point, gladhand is connected with the drainage anchor clamps, open fuel tank oil-feed valve simultaneously, afterwards the drainage anchor clamps are held high, the 3rd people is holding up the aligning leakage point to detain from top to bottom, fast that clip is fastening after buckling well, leakage of oil this moment has flowed to fuel tank, and drainage effect is good, and the people who holds fire extinguisher continues and will have the place spray of leaking oil to remove fire-fighting powder till whole coverings in front of the leakage point; Drain into oil stream when very little always, driving oil well pump took out 1 minute again, close behind the pump leakage point oil that do not outflowed, unload the drainage flexible pipe, pull down the drainage anchor clamps, remove leakage point and the residual diesel oil on the pipeline on every side, available wiping and the way that dries up, treat purple oily shape of having cleared up the back by plugging device, root out the anticorrosive coat of wanting on the weld pipeline and also polish, buckle plugging device and welding, welded the non-destructive inspection of making weld seam to exposing metallic lustre, the affirmation welding is qualified just can resume production, and only finish with shutoff in 45 minutes front and back; Under the situation that does not influence production run, perform on-the-spot cleaning work afterwards, wherein mainly be land oil removing, because the oil that lands has infiltrated in the soil, unclearly comprehend the long-term pollution environment, and cleaning still must be careful, the way that adopts is to wash away with high pressure water, in advance have land diesel oil around accomplish fluently low bank between fields or in shallow water and dig the puddle a long way off, begin to wash away after being ready to high pressure water, begin progressively backward from closing on the puddle earlier, one by one oily soil is washed away, water and slurry flows are gone into the puddle, and oil just floats on the water surface, and oil is collected and can be used it for anything else, if land oil seldom, only blow to cover with soil again after a period of time with blower simply and get final product.With this method to current leakage control, shutoff proof this method is feasible, effective, safe and reliable, speed is fast, only uses just to finish control less than one hour and leak and the shutoff operation, and is little to the pollution of environment, makes economic loss reduce to minimum degree.
As seen, the present invention is effective, safety, quick, and environmental pollution is little, has reduced economic loss, has solved a great problem in the leakage of finished oil pipeline repairing, is of practical significance very much.
Claims (8)
1. the controlling method of a leakage of finished oil pipeline is characterized in that the processing of leakage of finished oil pipeline is followed these steps to carry out:
Enter on-the-spot preceding earlier to leakage point and detection of surrounding environment do or estimation;
Behind the scene with all vehicles, equipment left alone without help be placed on ground do not have leak oil apart from the nearest weather of leakage point;
Pipeline is connected with the fuel tank installation;
Remove, cover fire-extinguishing foam or fire-fighting powder people and equipment near will on the ground that leakage oil is arranged, spraying earlier before the leakage point, or press with earth mulch; Enter the protective measures that to take superfine fire prevention measure and personnel behind the scene;
The drainage type anchor clamps are installed on the pipeline, make leakage hole line-up jig draining hole, install being connected between anchor clamps and the drainage pipeline;
Continuing spray around the leakage point removes, covers fire-extinguishing foam or fire-fighting powder or with soil all are leaked places covering of oil;
Open the drainage of drainage valve, after fuel tank oil is full, closes valve and change another fuel tank continuation drainage, be reduced to till the pressure that is fit to shutoff up to ducted pressure;
Select conventional method shutoff construction for use.
2. the controlling method of leakage of finished oil pipeline according to claim 1 is characterized in that the situation of and leakage oil diffusing injection calm to the scene also needs to aim at the oily blowing of injection with blower from people, the close direction of equipment.
3. the controlling method of leakage of finished oil pipeline according to claim 1, it is characterized in that before the left alone without help selection of putting a little of described people and equipment earlier will to the scene carry out wind direction, wind-force, temperature, humidity, the pasta that lands long-pending, leak the oil spurts height, spray the oil column thickness, whether have loose spray and leakage point near the detection or the estimation of oily Volatile Gas concentration in the air, according to testing result with personnel, vehicle and equipment left alone without helply put that the place that a little determines to be in the wind, ground do not have that leakage is oily, in the air oily Volatile Gas concentration less than the distance of 5% suitable operation.
4. the controlling method of leakage of finished oil pipeline according to claim 1, it is characterized in that before personnel and equipment enter the leakage point zone, to spray the leakage oil on ground earlier and remove fire-extinguishing foam or fire-fighting powder covering, or cover with the non-soil got on the spot, soil container is that nonmetallic material are made, fall with the height that is lower than 10cm during blinding and soil in sandstone must not be arranged; Personnel and equipment will be taked strict antistatic, fire prevention measure, enter the on-the-spot personnel of repairing and must wear full protective clothes and wear respirator or oxygen cylinder and oxygen face mask.
5. the controlling method of leakage of finished oil pipeline according to claim 1, it is characterized in that described installation drainage anchor clamps are with high pressure water leakage point to be washed away out along the soil around the pipeline earlier before installing, with pump mud is extracted out again and exposed pipeline, lifting the drainage anchor clamps by many people is connected with the drainage anchor clamps with drainage tube and with drainage tube, behind leakage point, the drainage anchor clamps are lifted, the centrally aligned leakage point of drainage anchor clamps is from top to bottom detained steadily, install and tighten the clip of drainage anchor clamps, open fuel tank drainage tube valve and begin drainage.
6. the controlling method of leakage of finished oil pipeline according to claim 1 is characterized in that will continuing to remove fire-extinguishing foam or fire-fighting powder to leakage point and spray on every side thereof after the beginning drainage, all is leaked oil cover.
7. the controlling method of leakage of finished oil pipeline according to claim 1, it is characterized in that when draining into the processed oil pipeline stop and leak, stop up Leak hole earlier, remove Leak hole leakage oil on every side, remove Leak hole anticorrosive coat and polishing on every side and expose metallic lustre, then weld leak stopping device or patch, welded and done the weld seam non-destructive inspection, the weld is accepted operation of can resuming production.
8. the controlling method of leakage of finished oil pipeline according to claim 1, it is characterized in that after shutoff is finished, doing the on-the-spot oily cleaning of landing, its method be have land oil around with soil encircle and hunt down low bank between fields to the distant place the puddle, begin to wash away oily soil layer from the limit, puddle with high pressure water to the puddle, move progressively all oily soil is washed away the inflow puddle, the oil slick in the puddle is collected the usefulness of biding farewell in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100901475A CN100386561C (en) | 2005-08-11 | 2005-08-11 | Control method for leakage of finished oil pipeline |
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| CNB2005100901475A CN100386561C (en) | 2005-08-11 | 2005-08-11 | Control method for leakage of finished oil pipeline |
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| CN1912450A true CN1912450A (en) | 2007-02-14 |
| CN100386561C CN100386561C (en) | 2008-05-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363066A (en) * | 2011-06-27 | 2012-02-29 | 大连海事大学 | Flame guide separation fire extinguishing apparatus |
| CN109882739A (en) * | 2019-03-08 | 2019-06-14 | 胡琴 | A kind of carried of crude oil pipeline minute leakage accurate positioning device and monitoring method |
| CN112122864A (en) * | 2020-08-11 | 2020-12-25 | 沪东中华造船(集团)有限公司 | Device and method for emergency welding of oil leakage of marine fuel pipeline |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061638U (en) * | 1989-12-31 | 1990-09-05 | 燕胜利 | Dredging sealing and stopping device for covering leaks in pipes |
| JP3160354B2 (en) * | 1992-02-19 | 2001-04-25 | 東京瓦斯株式会社 | Pipe line repair method by suction lining |
| CN1184931A (en) * | 1996-12-11 | 1998-06-17 | 唐秀家 | Method and apparatus for detecting and positioning leakage of fluid transferring pipeline |
| KR20050023062A (en) * | 2003-08-29 | 2005-03-09 | 주식회사 피오씨 | Leak detection system for liquid pipeline |
| CN2670726Y (en) * | 2003-12-26 | 2005-01-12 | 华创天元实业发展有限责任公司 | Pipeline on-line sealer under pressure |
-
2005
- 2005-08-11 CN CNB2005100901475A patent/CN100386561C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363066A (en) * | 2011-06-27 | 2012-02-29 | 大连海事大学 | Flame guide separation fire extinguishing apparatus |
| CN102363066B (en) * | 2011-06-27 | 2014-08-13 | 大连海事大学 | Flame guide separation fire extinguishing apparatus |
| CN109882739A (en) * | 2019-03-08 | 2019-06-14 | 胡琴 | A kind of carried of crude oil pipeline minute leakage accurate positioning device and monitoring method |
| CN109882739B (en) * | 2019-03-08 | 2020-10-09 | 六安中达信息科技有限公司 | Accurate positioning device and monitoring method for tiny leakage of crude oil transportation pipeline |
| CN112122864A (en) * | 2020-08-11 | 2020-12-25 | 沪东中华造船(集团)有限公司 | Device and method for emergency welding of oil leakage of marine fuel pipeline |
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| Publication number | Publication date |
|---|---|
| CN100386561C (en) | 2008-05-07 |
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Effective date of registration: 20211110 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co., Ltd Address before: Intercontinental building, 16 ande Road, Dongcheng District, Beijing 100011 Patentee before: China National Petroleum Corporation |