CN205436510U - Former oil pipe way clearance system - Google Patents
Former oil pipe way clearance system Download PDFInfo
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- CN205436510U CN205436510U CN201620092863.0U CN201620092863U CN205436510U CN 205436510 U CN205436510 U CN 205436510U CN 201620092863 U CN201620092863 U CN 201620092863U CN 205436510 U CN205436510 U CN 205436510U
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- oil
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Abstract
The utility model provides a former oil pipe way clearance system, this system includes the steam unit, air compressor unit, PIG dispensing device, receiving arrangement, the oily water treatment all -in -one, the gas cooling adsorber, adopt steam heating and multi -functional PIG pig matched with method to wash to abandonment petroleum pipeline, good cleaning effect, high efficiency, settle the tank wagon recycle that packs into after the sump oil that utilizes the oily water treatment all -in -one to collect, the combustion gas cools off through oil gas, the adsorber is handled the back and is discharged, the sewage recycle after the oily water treatment all -in -one is handled who produces, utilize this technique not only can protect resource, reduces energy consumption an, and there is not a sump oil, the sewage discharge, the resource consumption minimizing has been reached.
Description
Technical field
This utility model relates to a kind of crude oil pipeline Removal Technology, is specially a kind of crude oil pipeline cleaning system.
Background technology
Pipeline conveying is the topmost means of transportation of oil, recently as the mankind's continuous growth to oil demand, China's oil conveyance conduit makes a breakthrough sexual development, but discarded pipe increases the most year by year, one is that pipeline is scrapped in aging, typically arrive safe service life at conduit running, scrapped by pipeline management specification；Two are as the development that various places town planning is built, and section of tubing is accounted for pressure by city, causes certain potential safety hazard to conduit running.For meeting the safe handling condition of petroleum pipeline, according to " People's Republic of China's oil and gas pipeline Protection Code " requirement, need, to aging and occupied pressure pipeline, separately to ward off new footpath and transform.According to " management method scrapped by oil pipeline and storage company limited long distance pipeline " requirement, the petroleum pipeline gone out of use after transformation, will first carry out harmlessness disposing, the pipeline that place postpones is it is ensured that to personal safety, soil, weather environment, around build (structure) thing non-hazardous；Want slip casting to seal up for safekeeping the pipeline section that cannot remove, prevent from subsiding.
And the harmlessness disposing of crude oil pipeline, then it is typically by oil pipeline is cleaned realization, is exactly briefly that the grease of inner-walls of duct, impurity are removed clean.Currently mainly use Chemical cleaning and PIG physical cleaning technique.But process above has respective shortcoming, in actual cleaning work, above method is the most unsatisfactory.Chemical cleaning not only cost is high, and the sewage disposal expense caused after polluting because of abluent is the biggest, and environmental pollution is serious, the most not environmentally；Only it is difficult to pipeline cleaning is clean by PIG physical cleaning technique；Pipeline disposal process is all extremely difficult to safe efficient, the requirement of environmental protection.
Summary of the invention
For solving the technical problem that above-mentioned crude oil pipeline processing mode exists, the crude oil pipeline cleaning system that this utility model spy provides a kind of environmental protection, energy consumption is low, cleaning efficiency is high.
For reaching above-mentioned utility model purpose, this utility model be the technical scheme is that
A kind of crude oil pipeline cleaning system, it includes steam unit, air-compressor set, PIG dispensing device, receive device, oily waste water treatment all-in-one, air cooling adsorber, steam unit includes steam raising plant, pressure monitoring device, steam unit can connect with pipe to be treated Flange joint, also can be connected with PIG dispensing device, air-compressor set includes air compressor, it can be connected with pipeline, PIG dispensing device includes transmitter and PIG ball, receive device and include receptor, surge tank and supporting pipelines, transmitter and receptor all can be connected with pipeline, oily waste water treatment all-in-one connects with pipe to be treated dirt-discherging outlet, air cooling adsorber is connected with receiving device.
Described PIG ball dispensing device also includes instrument detection and location device, it is provided with framing signal discharger in i.e. PIG ball, outer operator hold Deep space tracking instrument, PIG ball particular location in detergent line is positioned, it is simple to operator change corollary equipment or the ruuning situation of monitoring PIG in time by corresponding signal receptor and by display device.
The caliber of the pipeline of steam unit is DN50, and method of attachment is Flange joint, and steam pipe line is to be connected on the intake valve of transmitter by the air outlet valve of steam unit.
Described steam unit, air-compressor set may be installed on mobile haulage vehicle equipment.
Described air-compressor set, steam unit are all connected with being cleaned by pipeline by transmitter.
Described steam unit is can produce the common steam unit of high-temperature steam, and air-compressor set uses 6m3/h's.
Oily waste water treatment all-in-one, including floating oil absorber, suction pump, oil-water separator, receive oil cylinder, air floatation machine, filtering collector, it is arranged on liquid level surface layer in oil interceptor including floating oil absorber, it is connected with suction pump by pipeline, pipeline liquid outlet is connected with oil-water separator, oil-polluted water removes large granular impurity through oil removal regulating reservoir precipitation, and eliminated a large amount of oil slick on surface by floating oil absorber after, promoted by suction pump and be introduced into oil-water separator, isolated oil flows into drip tank and reclaims, isolated sewage enters back into air floatation machine and processes, the foreign material that air floatation machine processes out enter in dross box, the water that air-flotation process goes out elevator pump in air supporting filtered water tank enters follow-up double-filtration adsorber, one-level uses walnut shell filter, two grades use modified fibre to filter.The water filtered out first squeezes into tank car, sampled chemical examination qualified rear recoverable or properly discharge.
Described oil interceptor is the packaged type casing of welded steel plate, the oil-polluted water steam pipe, discharging when purging and lead to ball all squeezes into oil removal regulating reservoir, placed mobile floating oil absorber in pond, when in pond, oil reservoir reaches certain thickness, open oil well pump oil and suck secondary separation case, making oil float by inclined tube partition method to sink under water, fluid flows in drip tank from stream oil pipe automatically, and the sump oil in drip tank to pack sub-recovery in time or reclaim with oil well pump suction tank car.
Air cooling adsorber can be by exhaust-gas treatment, it is ensured that discharge environmental protection gas.
Pressure gauge PIG to be arranged on ball transmitting terminal, according to monitoring pressure, can distinguish PIG ruuning situation and approximate location, be provided with thermometer at receptor, in order to monitor gas temperature in the pipe at tube outlet.
Construction method cleared up by a kind of crude oil pipeline, and it comprises the following steps:
1. first time pigging, first one special nude bubble wiper is installed in PIG dispensing device, by steam unit and pipeline communication, starting steam unit utilizes steam to make propellant, first the sump oil in pipe is released, also begin to utilize steam-heated pipe line in pipe simultaneously, wiper wax deposition layer below is made gradually to melt, the operating pressure of foam pig is the least is about 0.03-0.05MPa, for improving cleaning performance and being beneficial to dirty oil recovery, flow is controlled with steam control valve, wiper is made to keep low speed, travel at the uniform speed, experiment proves that the wiper speed of service is best less than 2m/s, sump oil is discharged at the dirt-discherging outlet of the pipeline other end, by oil well pump, sump oil is evacuated to effluent oil recovery device, by receiving device, first ball is packed up.
2. No. two piggings, before pipe temperature is fallen, select steel main body PIG wiper as No. two PIG balls of PIG dispensing device, steam unit, air-compressor set are connected with pipeline simultaneously, the mixed gas utilizing steam and air compressor machine makees propellant, by adjusting air-compressor set and the valve of steam unit, make No. two balls be advanced slowly as far as possible, and run with ground tracker monitoring PIG, specification and the model of next step PIG put is determined, in order to preferably cleared by the foreign material such as the dirt deposited in pipe from the deformation of PIG.
Follow-up pigging, third time is cleaned and second time is cleaned and to be carried out continuously, pipe cleaning emitting is carried out when body temperature is more than oily cured crystallization temperature, i.e. ordinary circumstance lower tube body temperature should be at 80 150 DEG C, pipeline dirt-discherging outlet temperature is not less than 80 DEG C, in order to the sump oil on tube wall after more effectively softening clears out；Repeating the follow-up pigging of step 3, number of times is to reach oil-free, dirt and other foreign material in pipe, tube wall presents metal true qualities and is as the criterion.
4. checking and accepting, select white foam ball PIG ball, make source of the gas with air compressor machine and again carry out pipeline and lead to ball, the foam spheroid received is qualified without solid, liquid thing；In managing with explosimeter detection, gas is qualified without fuel gas.
In described step one, after wiper enters receptor, terminal temperature meter to be observed, this cleaning can be stopped after temperature reaches more than 80 degree, i.e. stop conveying steam, after waiting until to discharge without steam, open transceiver and take out wiper,
Described nude bubble wiper is a kind of PIG ball, possesses certain elasticity and can be full of in untreated oil line.
The speed that No. two described balls are advanced slowly is no more than 1m/s.
PIG cleans and should be carried out continuously, and should not interrupt.If promoting medium not ensure continuously, motion can be made to stop, and increase the risk cleaned.
The beneficial effects of the utility model are:
Show that the crux influence factor removing long petroleum pipeline condensed layer is temperature about research, heated wash is the highest to cleaning performance and the efficiency of condensed layer, according to this characteristic, in conjunction with various PIG pigging technologies, research has manufactured this set waste petroleum pipe harmless and has cleaned dedicated system, utilize these plant equipment, the method that waste petroleum pipeline uses steam heating and multi-functional PIG wiper match is carried out, the sump oil cleared out utilizes oily waste water treatment all-in-one to load oil truck after collecting and recycles, expellant gas cools down through oil gas, adsorber discharges after processing, the sewage produced recycles after oily waste water treatment all-in-one processes.Being proved by construction, this technical method has the advantage that feature is as follows:
1) be conducive to environmental conservation, utilize this technology to be possible not only to protect resource, reduce energy consumption, and there is no sump oil, sewage discharge, reached theorem about solutions.
2) sewage disposal expense caused after not occurring to pollute because of abluent, has obvious economic advantages.
3) major mechanical runs operation is automatization, can effectively reduce operational error, improve work efficiency, and reduce labour cost.
4) because pipeline cleaning need not nature emptying, the installation form of pipeline is the most unrestricted.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment flowage structure schematic diagram.
Detailed description of the invention
A kind of crude oil pipeline cleaning system, it includes steam unit, air-compressor set, PIG dispensing device, receive device, oily waste water treatment all-in-one, air cooling adsorber, steam unit includes steam raising plant, pressure monitoring device, steam unit can connect with pipe to be treated Flange joint, also can be connected with PIG dispensing device, air-compressor set includes air compressor, it can be connected with pipeline, PIG dispensing device includes transmitter and PIG ball, receive device and include receptor, surge tank and supporting pipelines, transmitter and receptor all can be connected with pipeline, oily waste water treatment all-in-one connects with pipe to be treated dirt-discherging outlet, air cooling adsorber is connected with receiving device.
Described PIG ball dispensing device also includes instrument detection and location device, it is provided with framing signal discharger in i.e. PIG ball, outer operator hold Deep space tracking instrument, PIG ball particular location in detergent line is positioned, it is simple to operator change corollary equipment or the ruuning situation of monitoring PIG in time by corresponding signal receptor and by display device.
The caliber of steam pipe line is DN50, and method of attachment is Flange joint, and steam pipe line is to be connected on the intake valve of transmitter by the air outlet valve of steam unit.
This system also includes nitrogen unit, uses liquid nitrogen container dress transport vehicle to produce nitrogen by liquid nitrogen gasification device, it is desirable to nitrogen pressure 0.1 1.0MPa, alternative air-compressor set.
Described nitrogen unit, steam unit, air-compressor set may be installed on mobile haulage vehicle equipment.
Described air-compressor set, steam unit are all connected with being cleaned by pipeline by transmitter.
Described steam unit is can produce the common steam unit of high-temperature steam, and air-compressor set uses 6m3/h's.
Oily waste water treatment all-in-one, including floating oil absorber, suction pump, oil-water separator, receive oil cylinder, air floatation machine, filtering collector, it is arranged on liquid level surface layer in oil interceptor including floating oil absorber, it is connected with suction pump by pipeline, pipeline liquid outlet is connected with oil-water separator, oil-polluted water removes large granular impurity through oil removal regulating reservoir precipitation, and eliminated a large amount of oil slick on surface by floating oil absorber after, promoted by suction pump and be introduced into oil-water separator, isolated oil flows into drip tank and reclaims, isolated sewage enters back into air floatation machine and processes, the foreign material that air floatation machine processes out enter in dross box, the water that air-flotation process goes out elevator pump in air supporting filtered water tank enters follow-up double-filtration adsorber, one-level uses walnut shell filter, two grades use modified fibre to filter.The water filtered out first squeezes into tank car, sampled chemical examination qualified rear recoverable or properly discharge.
Described oil interceptor is the packaged type casing of welded steel plate, the oil-polluted water steam pipe, discharging when purging and lead to ball all squeezes into oil removal regulating reservoir, placed mobile floating oil absorber in pond, when in pond, oil reservoir reaches certain thickness, open oil well pump oil and suck secondary separation case, making oil float by inclined tube partition method to sink under water, fluid flows in drip tank from stream oil pipe automatically, and the sump oil in drip tank to pack sub-recovery in time or reclaim with oil well pump suction tank car.
Pressure gauge PIG to be arranged on ball transmitting terminal, according to monitoring pressure, can distinguish PIG ruuning situation and approximate location, be provided with thermometer at receptor, in order to monitor gas temperature in the pipe at tube outlet.
Construction method cleared up by a kind of crude oil pipeline, and it comprises the following steps:
1. first time pigging, one special " nude bubble wiper " is first installed in PIG dispensing device, by steam unit and pipeline communication, starting steam unit utilizes steam to make propellant, first the sump oil in pipe is released, also begin to utilize steam-heated pipe line in pipe simultaneously, wiper wax deposition layer below is made gradually to melt, the operating pressure of foam pig is the least is about 0.03-0.05MPa, for improving cleaning performance and being beneficial to dirty oil recovery, flow is controlled with steam control valve, wiper is made to keep low speed, travel at the uniform speed, experiment proves that the wiper speed of service is best less than 2m/s, sump oil is discharged at the dirt-discherging outlet of the pipeline other end, by oil well pump, sump oil is evacuated to effluent oil recovery device, by receiving device, first ball is packed up.
2. No. two piggings, before pipe temperature is fallen, select steel main body PIG wiper as No. two PIG balls of PIG dispensing device, steam unit, air-compressor set are connected with pipeline simultaneously, the mixed gas utilizing steam and air compressor machine makees propellant, by adjusting air-compressor set and the valve of steam unit, make No. two balls be advanced slowly as far as possible, and run with ground tracker monitoring PIG, specification and the model of next step PIG put is determined, in order to preferably cleared by the foreign material such as the dirt deposited in pipe from the deformation of PIG.
Follow-up pigging, third time is cleaned and second time is cleaned and to be carried out continuously, pipe cleaning emitting is carried out when body temperature is more than oily cured crystallization temperature, i.e. ordinary circumstance lower tube body temperature should be at 80 150 DEG C, pipeline dirt-discherging outlet temperature is not less than 80 DEG C, in order to the sump oil on tube wall after more effectively softening clears out；Repeating the follow-up pigging of step 3, number of times is to reach oil-free, dirt and other foreign material in pipe, tube wall presents metal true qualities and is as the criterion.
4. checking and accepting, select white foam ball PIG ball, make source of the gas with air compressor machine and again carry out pipeline and lead to ball, the foam spheroid received is qualified without solid, liquid thing；In managing with explosimeter detection, gas is qualified without fuel gas.
In described step one, after wiper enters receptor, terminal temperature meter to be observed, this cleaning can be stopped after temperature reaches more than 80 degree, i.e. stop conveying steam, after waiting until to discharge without steam, open transceiver and take out wiper,
Described nude bubble wiper is a kind of PIG ball, possesses certain elasticity and can be full of in untreated oil line.
The speed that No. two described balls are advanced slowly is no more than 1m/s.
PIG cleans and should be carried out continuously, and should not interrupt.If promoting medium not ensure continuously, motion can be made to stop, and increase the risk cleaned.
Oil interceptor waste water, in sewage pump enters oil-water separator, by the difference in specific gravity of two kinds of immiscible liquids, is mainly used in removing the non-emulsified oil of in water more than 80%.The pass parts " cyclone pipe " of oil-water separator are made up of parts such as distribution openings, vortex chamber, contraction chamber, tail cone, tail pipe, underflow opening, overfalls.Oil-water mixture is entered cyclone pipe by the distribution openings on vortex chamber, under certain pressure differential, forms helical flow.Shrink through contraction chamber, tail cone two-stage, make fluid speedup and in cyclone pipe, form a stable centrifugal force field.According to Stokes (stokes) law, in oil-water mixture, heavy phase water is thrown to cyclone pipe inwall helically state under powerful centrifugal action and is discharged from underflow opening, formation wick then assembled by light phase oil to the center of cyclone pipe, discharges from overfall, it is achieved oil-water separation.It is 2000g that this centrifugal field produces centrifugal acceleration, and therefore profit can realize separating in several seconds.
Oil-water separator water outlet gravity flow enters in dissolved air flotation machine, utilize the microbubble in the dissolved air water that air dissolving system produces, it is bonded together with the flco in water, float and oils rise to the water surface with microbubble, form scum silica frost, the suspension flco in water is made to be removed, this equipment is by casing, air dissolving system, Slag Scraping Device, air compressor machines etc. form, air dissolving system is the core of equipment, it it is the critical component producing microbubble, dissolved air water prepared by air dissolving system discharges in contact chamber, form a large amount of microbubble group, it is sufficiently mixed with waste water, thus attach to the floccule body in water and rise, clear water is completely separated out.Clear water carries out sewage in being discharged into filtering collector by outlet pipe and again processes, and scum silica frost scrapes in sludge sump by scraping slag system, certainly flow to dross box.
Claims (6)
1. a crude oil pipeline cleaning system, it is characterized in that: it includes steam unit, air-compressor set, PIG dispensing device, receive device, oily waste water treatment all-in-one, air cooling adsorber, steam unit includes steam raising plant, pressure monitoring device, steam unit can be with pipe to be treated Flange joint, also can be connected with PIG dispensing device, air-compressor set includes air compressor, it is connected with pipeline, PIG dispensing device includes transmitter and PIG ball, receive device and include receptor, surge tank and supporting pipelines, transmitter and receptor are all connected with pipeline, oily waste water treatment all-in-one connects with pipe to be treated dirt-discherging outlet, air cooling adsorber is connected with receiving device.
Crude oil pipeline the most according to claim 1 cleaning system, is characterized in that: described PIG dispensing device also includes instrument detection and location device.
Crude oil pipeline the most according to claim 1 cleaning system, is characterized in that: the caliber of the pipeline of steam unit is DN50, method of attachment is Flange joint, and the air outlet valve of steam unit connects the intake valve of transmitter.
Crude oil pipeline the most according to claim 1 cleaning system, is characterized in that: described steam unit, air-compressor set are arranged on mobile haulage vehicle equipment.
Crude oil pipeline the most according to claim 1 cleaning system, it is characterized in that: described oily waste water treatment all-in-one, including floating oil absorber, suction pump, oil-water separator, receive oil cylinder, air floatation machine, filtering collector, floating oil absorber is arranged on liquid level surface layer in oil interceptor, it is connected with suction pump by pipeline, pipeline liquid outlet is connected with oil-water separator, oil-polluted water is lifted into oil-water separator by suction pump, isolated oil flows into drip tank and reclaims, isolated sewage enters air floatation machine, the water that air-flotation process goes out elevator pump in air supporting filtered water tank enters follow-up double-filtration adsorber, one-level uses walnut shell filter, two grades use modified fibre to filter.
Crude oil pipeline the most according to claim 5 cleaning system, is characterized in that: described oil interceptor is the packaged type casing of welded steel plate, placed mobile floating oil absorber in pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092863.0U CN205436510U (en) | 2016-01-31 | 2016-01-31 | Former oil pipe way clearance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092863.0U CN205436510U (en) | 2016-01-31 | 2016-01-31 | Former oil pipe way clearance system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205436510U true CN205436510U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620092863.0U Withdrawn - After Issue CN205436510U (en) | 2016-01-31 | 2016-01-31 | Former oil pipe way clearance system |
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| Country | Link |
|---|---|
| CN (1) | CN205436510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618439A (en) * | 2016-01-31 | 2016-06-01 | 李志强 | Cleaning system and cleaning construction method for crude oil pipeline |
-
2016
- 2016-01-31 CN CN201620092863.0U patent/CN205436510U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618439A (en) * | 2016-01-31 | 2016-06-01 | 李志强 | Cleaning system and cleaning construction method for crude oil pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |