CN101823065A - Device for descaling and derusting for pipeline and coating to form anti-corrosion coat and application method - Google Patents
Device for descaling and derusting for pipeline and coating to form anti-corrosion coat and application method Download PDFInfo
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Abstract
The invention relates to a device for descaling and derusting for a pipeline and coating to form an anti-corrosion coat and an application method. The device for descaling and derusting for the pipeline and coating to form the anti-corrosion coat comprises a cleaning device and a pipeline coating device, wherein the cleaning device is formed by connecting an air compressor, an oil-removing and water-filtering device, a gas storage tank and a jet generation pipe in series in turn; the jet generation pipe is connected with a dry ice storage bin and an abrasive material storage bin; the pipeline coating device is formed by connecting a high pressure fan, a heating device and a resin coating material atomization device in series in turn; the other end of the resin coating material atomization device is connected with the gas storage tank; the heating device and the resin coating material atomization device are connected on the jet generation pipe through the pipeline; and the jet generation pipe is connected with a cleaned pipeline. The device has the advantages of short descaling and wall-retaining time, low energy consumption, high construction speed, high efficiency and no pollution.
Description
Technical field:
The present invention relates to a kind of descaling and derusting for pipeline and overlay film corrosion-inhibiting coating device and application process, belong to pipeline rust cleaning, scale removal aseptic technic, be applicable to feed pipe, heating tube, boiler tubing, petroleum pipeline, Pneumatic conveying pipeline various bores.
Background technology:
Present domestic feed pipe, heating tube, boiler tubing, petroleum pipeline, Pneumatic conveying pipeline adopts coating steel pipe mostly, through using for a long time owing to carrying the fluid intermittent type to stop in the pipeline, the sedimentation in pipeline of impurity in the medium forms pipe scale, there is the metabolite of a large amount of inorganic salts and microorganism to produce complicated electrification in the pipe scale at inner-walls of duct, biochemical reaction, thereby between pipe scale and inner-walls of duct, produce the mixture of a large amount of iron rust and pipe scale, thereby reduced the internal diameter of pipeline, both influenced the flow rate of fluid in the pipeline, influence the quality of pipeline inner fluid again, even produce to leak and cause heavy losses.Usually adopt in the world at present inner-walls of duct rust cleaning, scale removal and inner wall anti-corrosive processing are had following several class methods: 1 mechanical curettage method, generally be used for large diameter pipeline, adopt machine tool that the fouling on the inner-walls of duct is struck off, water is rinsed the back well and is adopted the cement mortar retaining wall to handle, but the cement mortar retaining wall has increased the friction that fluid is carried, thereby reduces the lift of fluid.2 lash methods produce vibration by the whole bag of tricks with pipeline and fouling in the pipeline is come off but eliminate rust not thorough.3 chemical cleaning methods adopt chemical agent to pour in the pipeline, deposit a period of time, and the fouling in the feasible pipe is softened, come off, and water is clean pipe flushing then.Pollute easily and need clean by a large amount of clear water but shortcoming is a chemical reagent.4, electromagnetic method stops inner-walls of duct fouling 5 by electromagnetic field, and the air-flow method adopts high pressure gas, water to inner-walls of duct rust cleaning, scale removal and retaining wall.Though said method has obtained utilization widely, and has also produced good social benefit and economic benefit, said method also exists and deficiency certainly.As: mechanical curettage method intractable when pipeline reducing diameter and the bend; The essence of air-flow method is sand-blast, and the power consumption when needing to consume a large amount of compressed air constructions is very big, and very big to the wearing and tearing of pipeline, especially the impact to pipeline bend place is easy to puncture pipeline; Lash method is difficult to implement to dark pipe laying road; Chemical cleaning is difficult to control well the amount of chemical reagent, is easy to generate pollution, needs a large amount of clear water flushing pipes simultaneously.
Summary of the invention:
In order to solve the problems of the technologies described above, the invention provides a kind of descaling and derusting for pipeline and overlay film corrosion-inhibiting coating device and application process.
The technical solution adopted for the present invention to solve the technical problems is: a kind of descaling and derusting for pipeline and overlay film corrosion-inhibiting coating device, comprise scavenge unit and pipeline film covering device, described scavenge unit is by air compressor, the water device is considered in oil removing, air accumulator, the jet generator tube is in series successively, be connected with storage dry ice feed bin and storage abrasive material feed bin on the described jet generator tube, described pipeline film covering device is by high pressure positive blower, heater and grease coating material atomising device are in series successively, the other end of described grease coating material atomising device is connected with air accumulator, be connected on the jet generator tube by pipeline between described heater and the grease coating material atomising device, described jet generator tube is connected with pipe to be treated.
Its application process is as follows: a, startup high pressure positive blower, heater and air compressor, heat pipe to be treated by high pressure resistant airduct and jet generator tube; B, after the temperature to pipe to be treated reaches its maximum temperature that can bear, close heater stop heating, open valve between air accumulator and the jet generator tube and the dry ice control valve that stores up the dry ice feed bin; C, open the abrasive material control valve of storage abrasive material feed bin when treating tube-cooled to minimum temperature that pipeline can bear; D, after 5～10 minutes, close the dry ice control valve of storage dry ice feed bin and the abrasive material control valve of storage abrasive material feed bin, and continue to carry air to pipe to be treated; E, when thing impurity blows out in the pipe to be treated, open grease coating material atomising device and oil removing and consider valve between water device, the high pressure resistant airduct, to pipe to be treated inwall overlay film; F, treat that pipe to be treated inwall overlay film is complete after, close and open grease coating material atomising device and oil removing and consider valve between water device, the high pressure resistant airduct, start heater simultaneously, by high pressure resistant airduct and jet generator tube pipe to be treated is heated and dry up overlay film.
Further: the connecting pipe between described heater, grease coating material atomising device and the jet generator tube is high pressure resistant airduct.
In order to strengthen the bump in the pipe to be treated, make the pipe to be treated cleaning reach optimum efficiency, progressive: the abrasive material in the described storage abrasive material feed bin is yellow ground or particles of silicon carbide or white fused alumina particle or brown corundum in granules.
In order to realize dedusting and reclaim abrasive material that further: the other end of described pipe to be treated is connected with water tank.
Further: be provided with the auxiliary pipeline that prolongs between described pipe to be treated and the water tank, described auxiliary prolongation duct bottom places the liquid in the water tank.
The time weak point that whole scale removal of the present invention and retaining wall work are required; less energy consumption; construction speed is fast; the efficient height; can not produce pollution, be applicable to the cleaning of the pipeline of various calibers, and work the time does not need to destroy the protective layer of pipeline; influence to the user is little, especially more can guarantee the water yield and water quality to life with feed pipe.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is a workflow diagram of the present invention.
Among the figure: 1, air compressor; 2, the water device is considered in oil removing; 3, air accumulator; 4, jet generator tube; 5, storage dry ice feed bin; 6, storage abrasive material feed bin; 7, high pressure positive blower; 8, heater; 9, grease coating material atomising device; 10, pipe to be treated; 11, water tank; 12, the auxiliary pipeline that prolongs; 13, pipe connecting piece; 14, high pressure resistant airduct; 15, dry ice control valve; 16, abrasive material control valve.
The specific embodiment:
The present invention is further described below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of descaling and derusting for pipeline and overlay film corrosion-inhibiting coating device comprise scavenge unit and pipeline film covering device.Described scavenge unit is connected with air accumulator 2 by tracheae by the escape pipe of oil removing water treatment plant 1; compressed air purifying and pressure stabilizing with air compressor 1 generation; the compressed air that purifies enters jet generator tube 9 at a high speed; storage dry ice feed bin 5 connects jet generator tube 4 by dry ice control valve 15 and down stream tee joint; and the generation jet is sneaked into dry ice in the compressed air in jet generator tube 4; enter need pipe blow-through 10 by pipe connecting piece 13; storage abrasive material feed bin 6 connects jet generator tube 4 by abrasive material control valve 16 and down stream tee joint; and the generation jet is sneaked into abrasive material in the compressed mixed gas in jet generator tube 4; abrasive material in the described storage abrasive material feed bin 6 is yellow ground or particles of silicon carbide or white fused alumina particle or brown corundum in granules, enters pipe to be treated 10 by pipe connecting piece 13.Described pipeline film covering device according to pipe to be treated caliber, length, move towards to calculate the resistance of ducting, employing can produce 0.01～1kgf/cm
2The higher high pressure positive blower 7 of pressure produce be higher than resistance of ducting 0.01kgf/cm2 above the higher pressure air, described pipeline film covering device is in series successively by high pressure positive blower 7, heater 8 and grease coating material atomising device 9, the other end of described grease coating material atomising device 9 is connected with air accumulator 3, be connected on the jet generator tube 4 by pipeline between described heater 8 and the grease coating material atomising device 9, the connecting pipe between described heater 8, grease coating material atomising device 9 and the jet generator tube 4 is high pressure resistant airduct 14.
In conjunction with shown in Figure 2, at first according to the material of being cleared up pipeline 10, the execution conditions of the trend of pipeline and periphery, determine that by situation on the spot pipe to be treated 10 open positions carry pipeline disconnected, pipe to be treated 10 is broken into A section and B section, with scavenge unit, the pipeline film covering device is connected in the A section of pipe to be treated 10 by pipe connecting piece 13, and do not hold by pipe connecting piece 13 in the A of pipe to be treated 10 section and to be connected with the auxiliary pipeline 12 that prolongs, pipe scale particle and abrasive material etc. are recovered in the water tank 11, start high pressure positive blower 7, heater 8 is blown into hot blast the A section of pipe to be treated 10, it is stand-by to start air compressor 1 simultaneously, A section to pipe to be treated 10 heats, when pipe to be treated 10 reaches material and allows the maximum temperature of heating, close high pressure positive blower 6, heater 7 and corresponding valve, open the valve between air accumulator 3 and the jet generator tube 4, open the dry ice control valve 15 between storage dry ice feed bin 5 and the jet generator tube 4 simultaneously, the A section that the dry ice jet is sprayed into pipeline 4 is carried out freezing cleaning, dry ice energy bursting by freezing pipe scale connects with pipeline, and can clean microorganism in the pipe to be treated 10, when the pipe scale particle blows out, open the abrasive material control valve 16 between the storage abrasive material feed bin 6 jet generator tubes 4, the A section that air and the dry ice mixed high-voltage gas jet of abrasive material by high pressure sprays into pipe to be treated 10, pulverize pipe scale in the time of the abrasive polishing inner-walls of duct of high-speed motion, in pipe to be treated 10, no longer include the dust ejection, the dust of ejection is the pipe scale fragment in the pipe to be treated 10, the metal rust, close the valve between the storage abrasive material feed bin 5 jet generator tubes 9, valve between the storage dry ice feed bin 6 jet generator tubes 4, continuation is blown into compressed air in the A of pipe to be treated 10 section, spray the valve of closing between air accumulator 3 and the jet generator tube 4 up to no abrasive grain, open the valve between air accumulator 3 and the cold coating atomising device 9, start high pressure positive blower 7 simultaneously, vaporific cold coating is blown into the A section of pipe to be treated 10, coating in the A section of observation pipe to be treated 10 is until applying the valve of evenly closing between air accumulator 3 and the cold coating atomising device 9, valve between grease coating material atomising device 9 and the high pressure resistant airduct 14 starts the interior overlay film of A section that heater 8 is dried pipe to be treated 10.Make the A section inwall of pipe to be treated 10 form one deck protection anticorrosive coat, the A section of pipe to be treated 10 is coated with end clearly.
Fortune uses the same method after the B section of pipe to be treated 10 that need are coated with clearly treats that the B section is coated with end clearly, and A section and B segment pipe are connected into a pipeline again.
Claims (6)
1. descaling and derusting for pipeline and overlay film corrosion-inhibiting coating device, it is characterized in that: described device comprises scavenge unit and pipeline film covering device, described scavenge unit is by air compressor (1), water device (2) is considered in oil removing, air accumulator (3), jet generator tube (4) is in series successively, be connected with storage dry ice feed bin (5) and storage abrasive material feed bin (6) on the described jet generator tube (4), described pipeline film covering device is by high pressure positive blower (7), heater (8) and grease coating material atomising device (9) are in series successively, the other end of described grease coating material atomising device (9) is connected with air accumulator (3), be connected on the jet generator tube (4) by pipeline between described heater (8) and the grease coating material atomising device (9), described jet generator tube (4) is connected with pipe to be treated (10).
2. descaling and derusting for pipeline according to claim 1 and overlay film corrosion-inhibiting coating device is characterized in that: the connecting pipe between described heater (8), grease coating material atomising device (9) and the jet generator tube (4) is high pressure resistant airduct.
3. descaling and derusting for pipeline according to claim 1 and overlay film corrosion-inhibiting coating device is characterized in that: the abrasive material in the described storage abrasive material feed bin (6) is yellow ground or particles of silicon carbide or white fused alumina particle or brown corundum in granules.
4. descaling and derusting for pipeline according to claim 1 and overlay film corrosion-inhibiting coating device is characterized in that: the other end of described pipe to be treated (10) is connected with water tank (11).
5. descaling and derusting for pipeline according to claim 4 and overlay film corrosion-inhibiting coating device, it is characterized in that: be provided with the auxiliary pipeline (12) that prolongs between described pipe to be treated (10) and the water tank (11), described auxiliary prolongation pipeline (12) bottom places the liquid in the water tank (11).
6. the application process of descaling and derusting for pipeline according to claim 1 and overlay film corrosion-inhibiting coating device, it is characterized in that: described application process is as follows: a, startup high pressure positive blower, heater and air compressor, heat pipe to be treated by high pressure resistant airduct and jet generator tube; B, after the temperature to pipe to be treated reaches its maximum temperature that can bear, close heater stop heating, open valve between air accumulator and the jet generator tube and the dry ice control valve that stores up the dry ice feed bin; C, open the abrasive material control valve of storage abrasive material feed bin when treating tube-cooled to minimum temperature that pipeline can bear; D, after 5～10 minutes, close the dry ice control valve of storage dry ice feed bin and the abrasive material control valve of storage abrasive material feed bin, and continue to carry air to pipe to be treated; E, when thing impurity blows out in the pipe to be treated, open grease coating material atomising device and oil removing and consider valve between water device, the high pressure resistant airduct, to pipe to be treated inwall overlay film; F, treat that pipe to be treated inwall overlay film is complete after, close and open grease coating material atomising device and oil removing and consider valve between water device, the high pressure resistant airduct, start heater simultaneously, by high pressure resistant airduct and jet generator tube pipe to be treated is heated and dry up overlay film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010160422 CN101823065A (en) | 2010-04-30 | 2010-04-30 | Device for descaling and derusting for pipeline and coating to form anti-corrosion coat and application method |
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| CN 201010160422 CN101823065A (en) | 2010-04-30 | 2010-04-30 | Device for descaling and derusting for pipeline and coating to form anti-corrosion coat and application method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500525A (en) * | 2011-09-30 | 2012-06-20 | 华南理工大学 | Spray coating method of anti-corrosive paint on inner wall of fire tube |
| CN102698995A (en) * | 2012-06-28 | 2012-10-03 | 唐山三友化工股份有限公司 | Method for washing carbonization tower water tank by utilizing cleaning gas |
| CN104190676A (en) * | 2014-08-06 | 2014-12-10 | 苏州热工研究院有限公司 | Corrosion-product removing and coating applying device for inner wall of pipe of nuclear power plant |
| CN104646354A (en) * | 2014-06-14 | 2015-05-27 | 柳州市奥凯工程机械有限公司 | Method for removing oil dirt on metal surface |
| CN107350236A (en) * | 2017-07-13 | 2017-11-17 | 浙江工业大学之江学院 | Adhesion greasy filth recovery system in a kind of oil-piping |
| CN108854285A (en) * | 2018-07-13 | 2018-11-23 | 廊坊萍锅炉保养工程有限公司 | A kind of boiler endogenous fire side and water side maintaining method |
| CN109184826A (en) * | 2018-09-18 | 2019-01-11 | 周向昭 | A kind of flushing of pipeline device and flushing of pipeline method |
| CN110624329A (en) * | 2019-10-25 | 2019-12-31 | 范飞标 | Boiler continuous drainage multistage depressurization expansion purification waste heat recovery system |
| CN110861890A (en) * | 2019-10-30 | 2020-03-06 | 大庆瑞赛克环保科技有限公司 | Workover oil pipe, sucker rod on-site cleaning device and cleaning method |
| CN112222115A (en) * | 2020-09-25 | 2021-01-15 | 上海城市水资源开发利用国家工程中心有限公司 | Vertical pipeline and cleaning method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500525A (en) * | 2011-09-30 | 2012-06-20 | 华南理工大学 | Spray coating method of anti-corrosive paint on inner wall of fire tube |
| CN102698995A (en) * | 2012-06-28 | 2012-10-03 | 唐山三友化工股份有限公司 | Method for washing carbonization tower water tank by utilizing cleaning gas |
| CN102698995B (en) * | 2012-06-28 | 2014-04-30 | 唐山三友化工股份有限公司 | Method for washing carbonization tower water tank by utilizing cleaning gas |
| CN104646354A (en) * | 2014-06-14 | 2015-05-27 | 柳州市奥凯工程机械有限公司 | Method for removing oil dirt on metal surface |
| CN104190676A (en) * | 2014-08-06 | 2014-12-10 | 苏州热工研究院有限公司 | Corrosion-product removing and coating applying device for inner wall of pipe of nuclear power plant |
| CN107350236A (en) * | 2017-07-13 | 2017-11-17 | 浙江工业大学之江学院 | Adhesion greasy filth recovery system in a kind of oil-piping |
| CN108854285A (en) * | 2018-07-13 | 2018-11-23 | 廊坊萍锅炉保养工程有限公司 | A kind of boiler endogenous fire side and water side maintaining method |
| CN109184826A (en) * | 2018-09-18 | 2019-01-11 | 周向昭 | A kind of flushing of pipeline device and flushing of pipeline method |
| CN109184826B (en) * | 2018-09-18 | 2021-01-05 | 周向昭 | Pipeline flushing device and pipeline flushing method |
| CN110624329A (en) * | 2019-10-25 | 2019-12-31 | 范飞标 | Boiler continuous drainage multistage depressurization expansion purification waste heat recovery system |
| CN110861890A (en) * | 2019-10-30 | 2020-03-06 | 大庆瑞赛克环保科技有限公司 | Workover oil pipe, sucker rod on-site cleaning device and cleaning method |
| CN110861890B (en) * | 2019-10-30 | 2021-03-30 | 大庆瑞赛克环保科技有限公司 | Workover oil pipe, sucker rod on-site cleaning device and cleaning method |
| CN112222115A (en) * | 2020-09-25 | 2021-01-15 | 上海城市水资源开发利用国家工程中心有限公司 | Vertical pipeline and cleaning method thereof |
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Application publication date: 20100908 |