CN1320487A

CN1320487A - High-pressure gas method for descaling pipeline and protecting pipeline wall

Info

Publication number: CN1320487A
Application number: CN 00115422
Authority: CN
Inventors: 王筱均; 周克明; 王小民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-21
Filing date: 2000-04-21
Publication date: 2001-11-07
Also published as: CA2311049A1; CA2311049C

Abstract

A high-pressure air process for descaling the pipe and protecting inner surface of pipeline includes stabilizing the pressure of high-pressure air, purifying it, heating, generating high-pressure cyclone, introducing it into pipeline to remove scale on the inner surface, adding sand to clean the inner surface, and adding food-class resin to apply a layer of protecting film on the inner surface. Its advantages are high speed and no damage to original facilities.

Description

Scale removal of gases at high pressure pipeline and wall protecting method

Scale removal of gases at high pressure pipeline and wall protecting method relate to feed pipe, feed pipe, gas pipe, petroleum pipeline are removed the interior rust staining of pipe and the method for fouling and coated wall protecting paint.

Feed pipe and air supply pipe that existing live and work adopts mostly are the zinc coating iron pipe, can produce rust staining and fouling at inside pipe wall after the use of long period, have both affected and have supplied water and air feed, so that water supply quality degenerates, affect the healthy of people again.In order to remove pipeline inner rust spot and fouling, usually adopt at present 1. chemical cleaning methods, adopt chemical agent to pour in the pipeline, deposit a period of time, so that the fouling in the pipe is softened, come off, water is clean pipe flushing then.2. vibrating method, by pipeline is vibrated (as, knock pipeline) rust staining and fouling in the pipeline are come off, water is clean pipe flushing then.The method of 3 mechanical curettages generally is used for large-diameter pipe, and the dirt that adopts machine tool will tie on inner-walls of duct strikes off, and water is rinsed rear employing cement mortar retaining wall well and processed.Said method only is that dirt is handled, scale removal difficulty height, and the required time is long, and the water yield that is used for pipe blow-through is big, and especially chemical cleaning method can produce new harm as chemical agent not being rinsed well.Chemical cleaning method, after the vibrating method scale removal, inside pipe wall is not taked the retaining wall measure, so also can get rusty and fouling in the pipeline soon, time one is long, and pipeline just can not normally use, as changing old pipeline, to resident or the user of unit, just decorate inconvenience more owing to will destroy.Handle though the method for mechanical curettage is carried out retaining wall to inside pipe wall after scale removal, the cement mortar thick coating has dwindled caliber, has reduced the conveyance power of water of pipeline.

For the deficiency of existing rust removing and contaminant releasing method, the inventor has proposed a kind of to removing rust staining and fouling with pipeline through studying for a long period of time, and coated is filmed on inside pipe wall, so that pipeline is unimpeded, and no longer fouling, the scale removal of getting rusty and wall protecting method.

The present invention realizes in the following manner: adopt gases at high pressure and sand grains to the pipeline inner rust spot, fouling is removed, then with food level resin to the inner-walls of duct retaining wall of filming.Sand grains adopts quartz sand or iron sand grain or steel sand grain.The inventive method looks pipe condition is set high-pressure gas pressure and through voltage stabilizing in when work, purify, heating, make gases at high pressure produce rotation by cyclone, the gases at high pressure that are heated and rotate are earlier to heat-treating in the pipeline, so that inside pipe wall and fouling drying are constantly clashed into inside pipe wall and fouling in pipeline with sand grains then, friction is so that rust staining and fouling are pulverized, and coming off and taking pipeline out of by gases at high pressure enters retracting device with sand grains.Rust staining and removal of deposit are intact; after continuing to use the gases at high pressure that are heated and rotate that inside pipe wall is blown clean; the gases at high pressure band food level resin in rotary course equably coated on inside pipe wall, form one deck cuticula; the gases at high pressure that rotate by being heated after coated finishes will be filmed and be dried up; the protection tube inwall no longer gets rusty it, fouling.

Advantage of the present invention is fairly obvious, adopts gases at high pressure and the sand of rotation can be clean the rust staining of inside pipe wall and removal of deposit, can food level resin equably coated on inside pipe wall, form cuticula protection pipeline.The time weak point that the whole scale removal of the inventive method and retaining wall work are required does not need to strike wall cutter wall and destroys original decoration during work, little to user's impact, especially more can guarantee the water yield and water quality for life with feed pipe.

Accompanying drawing 1. is workflow diagrams of the inventive method embodiment, in conjunction with the accompanying drawings the inventive method is further described.

, gases at high pressure are dewatered except oil purification by clarifier to its voltage stabilizing at first according to being determined the pressure of gases at high pressure by the situation of cleaning pipeline, and by voltage-stablizer, by heater gases at high pressure are heated then, by cyclone so that gases at high pressure produce whirlwind.Gases at high pressure through being heated, rotating enter by in the cleaning pipeline by tube connector, at first inner-walls of duct and fouling are heat-treated, and make rust staining and the fouling drying of inner-walls of duct, embrittlement.Then sand is joined in the gases at high pressure of rotation, the gases at high pressure band person sand grains of rotation constantly clashes into inner-walls of duct, friction so that rust staining, fouling comes off and pulverizes after taken out of by gases at high pressure and to be cleared up pipeline, entering retracting device reclaims, until after inner-walls of duct cleaned out, stop in the gases at high pressure that are heated, rotate and add sand grains, continue with the gases at high pressure that rotate inner-walls of duct to be blown clean.At last food level resin is joined in the gases at high pressure of the rotation of being heated; be liquid after food level resin is heated; under the gases at high pressure of rotation drive by coated equably on inner-walls of duct; the gases at high pressure that rotate by being heated after coated finishes will be filmed to dry up and form one deck cuticula on inside pipe wall; the protection inner-walls of duct no longer gets rusty fouling on the inner-walls of duct in water delivery constantly or gas transmission.

Claims

1. scale removal of gases at high pressure pipeline and wall protecting method, it is characterized in that: the employing gases at high pressure are through voltage-stablizer voltage stabilizing, purification utensil, heater heating and enter pipe to be treated by tube connector after cyclone makes gases at high pressure form rotation, being heated, rotating gases at high pressure in pipe to be treated at first heat-treats inner-walls of duct and fouling, after being with sand grains that inner-walls of duct and fouling are clashed into, rub again, inner-walls of duct is blown in only, and the even coated of gases at high pressure band food level resin of the rotation of being heated then forms one deck cuticula and it is dried up on inner-walls of duct.

2. eliminating sludge in pipe according to claim 1 and wall protecting method is characterized in that sand grains is quartz sand or iron sand grain or steel sand grain.