CN202638701U - Spraying device inside steel pipe - Google Patents

Spraying device inside steel pipe Download PDF

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Publication number
CN202638701U
CN202638701U CN 201220235302 CN201220235302U CN202638701U CN 202638701 U CN202638701 U CN 202638701U CN 201220235302 CN201220235302 CN 201220235302 CN 201220235302 U CN201220235302 U CN 201220235302U CN 202638701 U CN202638701 U CN 202638701U
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CN
China
Prior art keywords
coating
spray gun
measuring pump
links
paint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220235302
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Chinese (zh)
Inventor
宋卫国
王晓峰
徐晓旻
王建刚
李纯兵
赵胜
陈锦波
潘丛正
王骁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI TUBE-COTE PETROLEUM PIPE COATING Co Ltd
Original Assignee
SHANGHAI TUBE-COTE PETROLEUM PIPE COATING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI TUBE-COTE PETROLEUM PIPE COATING Co Ltd filed Critical SHANGHAI TUBE-COTE PETROLEUM PIPE COATING Co Ltd
Priority to CN 201220235302 priority Critical patent/CN202638701U/en
Application granted granted Critical
Publication of CN202638701U publication Critical patent/CN202638701U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a spraying device inside a steel pipe, and the spraying device comprises a spray gun traveling mechanism, a paint injection mechanism, a spray gun, an electric control system, a paint pipeline and an air pipeline. The spray gun traveling mechanism comprises a reduction motor, a spraying trolley and a transmission chain; the paint injection mechanism comprises a paint pump and a measuring pump; and the spray gun comprises a nozzle, an air motor, a needle valve, a transformation connector, an air pipe and a paint pipe. The spraying device inside the steel pipe adopts the high-pressure air as power to drive the air motor and the nozzle to rotate at a high speed, so that liquid paint is injected onto the inner surface of the petroleum steel pipe in a mist way, the liquid paint is dried in high temperature, solidified and formed into a high-strength paint membrane to resist the severe application environment in an oil well, and the service life of the steel pipe can be multiplied.

Description

The steel tube inner spray automatic doubler surface glouer
Technical field
The utility model relates to a kind of coating equipment, relates in particular to a kind of steel tube inner spray automatic doubler surface glouer.
Background technology
In the recovery process of oil, need to use a large amount of petroleum steel pipes, in order to resist the abominable environment for use in the oil well, reduce the corrosion to steel pipe internal-surface, improve steel pipe service life, carry out preservative treatment to steel pipe internal-surface.But because preservative treatment will be carried out in narrow and small steel duct, difficulty is carried out operation, can't directly observe its operation effectiveness, and spraying effect also is difficult to guarantee, so preferably coating equipment must be arranged.
The utility model content
The purpose of this utility model exactly in order to address the above problem, provides a kind of steel tube inner spray automatic doubler surface glouer.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of steel tube inner spray automatic doubler surface glouer, and it comprises:
The spray gun walking mechanism, comprise support, rack-mount reducing motor and driving chain, and be fixed on spraying dolly on the driving chain, and driving chain links to each other with the reducing motor transmission, and reducing motor can drive the spraying dolly that is fixed on the chain and move reciprocatingly;
The coating injection mechanism is installed on the spraying dolly, comprises paint pump, measuring pump, and paint pump links to each other with measuring pump by the coating pipeline provides coating to measuring pump;
Spray gun, its rear end are fixed on the spraying dolly, and the direction of motion of front end edge spraying dolly is stretched out to a side, and spray gun links to each other with measuring pump by the coating pipeline, and measuring pump offers spray gun to coating by the coating pipeline.
Described spray gun comprises shower nozzle, air motor, needle-valve, crossover sub, air hose, coating pipe and coating discharge nozzle; Shower nozzle, air motor, crossover sub, air hose are sequentially continuous, the coating discharge nozzle is connected between shower nozzle and the crossover sub, the coating pipe is located in crossover sub and the air hose and by crossover sub and is communicated with the coating discharge nozzle, needle-valve is arranged between the outlet and crossover sub of coating pipe, and passes coating pipe inside by control link and link to each other with the cylinder that is arranged on the spray gun afterbody; The coating pipe also links to each other with measuring pump by the coating pipeline, and air hose also links to each other with the high-pressure air source in the external world by air pipe line.
Described paint pump is the modularization plunger displacement pump take air as power.
Described measuring pump comprises frame and rack-mounted reducing motor, chain, metering barrel and measuring pump plunger; Chain links to each other with the reducing motor transmission and links to each other with the measuring pump plunger driving, the measuring pump plunger slides with the metering barrel and links to each other, the metering barrel also links to each other with paint pump and spray gun respectively by the coating pipeline, the coating pipeline that links to each other with paint pump at measuring pump is provided with the first pneumatic operated valve, and the coating pipeline that links to each other with spray gun at measuring pump is provided with the second pneumatic operated valve.
Steel tube inner spray automatic doubler surface glouer of the present utility model is take pressure-air as power, drive air motor and shower nozzle High Rotation Speed, liquid coating is atomized spray to the petroleum steel pipe inner surface, through high-temperature baking, curing, form the high strength paint film, can prevent effectively that pernicious gas in the oil well to the corrosion of steel pipe, resisting the abominable environment for use in down-hole, thereby improving the service life of steel pipe.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model steel tube inner spray automatic doubler surface glouer;
Fig. 2 is the structural representation of the spray gun walking mechanism in the utility model;
Fig. 3 is the structural representation of the coating injection mechanism in the utility model;
Fig. 4 is the structural representation of the spray gun in the utility model.
The specific embodiment
Cooperation is referring to Fig. 1, and steel tube inner spray automatic doubler surface glouer of the present utility model comprises spray gun walking mechanism 1, coating injection mechanism 2 and spray gun 3.
Cooperation is referring to Fig. 2, spray gun walking mechanism 1 comprises support 11, rack-mount reducing motor 12 and driving chain 13, and be fixed on spraying dolly 14 on the driving chain, driving chain 13 links to each other with reducing motor 12 transmissions, and reducing motor 12 can drive the spraying dolly 14 that is fixed on the chain and move reciprocatingly.
Cooperation is referring to Fig. 3, and coating injection mechanism 2 is installed on the spraying dolly 14, comprises paint pump 21, measuring pump 22, and paint pump 21 links to each other with measuring pump by the coating pipeline provides coating to measuring pump.Paint pump 21 wherein is the modularization plunger displacement pumps take air as power.Measuring pump 22 wherein comprises frame 221 and rack-mounted reducing motor 222, chain 223, metering barrel 224 and measuring pump plunger 225; Chain 223 links to each other with reducing motor 222 transmissions and links to each other with 225 transmissions of measuring pump plunger, measuring pump plunger 225 slides with metering barrel 224 and links to each other, metering barrel 224 also links to each other with paint pump 21 and spray gun 3 respectively by the coating pipeline, the coating pipeline that links to each other with paint pump at measuring pump is provided with the first pneumatic operated valve 226, and the coating pipeline that links to each other with spray gun at measuring pump is provided with the second pneumatic operated valve 227.Place paint can 23 through well-beaten coating, reducing motor 222 rotates counterclockwise, and drives measuring pump plunger 225 rollbacks thereby drive chain 223, and the second pneumatic operated valve 227 cuts out, the first pneumatic operated valve 226 is opened, and paint pump 21 beginnings are poured into coating in metering barrel 224.Spacing before and after measuring pump plunger 225 is provided with, when spacing after plunger arrives, the first pneumatic operated valve 226 cuts out, and finishes the process of a suction.Reducing motor 222 clockwise rotates, and advances thereby drive chain 223 drive measuring pump plungers 225, and the second pneumatic operated valve 227 is opened, and the first pneumatic operated valve 226 cuts out, and coating enters in the spray gun 3 through the coating pipeline.The spray gun walking mechanism retreats when putting in place, and motor stops operating, and finishes the discharging process one time.Pressure in safety valve 6, the 7 control coating pipelines guarantees security of system.When measuring pump plunger 225 arrives front limit, automatically carry out suction.Frequency Converter Control reducing motor velocity of rotation guarantees measuring pump plunger 225 easy motions, the control discharging speed, thus the paint thickness of control spraying satisfies technological requirement.
Cooperation is referring to Fig. 4, and the rear end of spray gun 3 is fixed on the spraying dolly 14, and the direction of motion of front end edge spraying dolly is stretched out to a side, and spray gun 3 links to each other with measuring pump 22 by the coating pipeline, and measuring pump 22 offers spray gun to coating by the coating pipeline.Spray gun 3 comprises shower nozzle 31, air motor 32, needle-valve 33, crossover sub 34, air hose 35, coating pipe 36 and coating discharge nozzle 37; Shower nozzle 31, air motor 32, crossover sub 34, air hose 35 orders link to each other, coating discharge nozzle 37 is connected between shower nozzle 31 and the crossover sub 34, coating pipe 36 is located in crossover sub 34 and the air hose 35 and by crossover sub and is communicated with coating discharge nozzle 37, needle-valve 33 is arranged between the outlet and crossover sub 34 of coating pipe 36, and passes coating pipe 36 inside by control link 38 and link to each other with the cylinder 39 that is arranged on the spray gun afterbody; Coating pipe 36 also links to each other with measuring pump 22 by coating pipeline 4, and air hose 35 also links to each other with the high-pressure air source in the external world by air pipe line 5.The coating that measuring pump 22 is carried enters the coating pipe 36 of spray gun from coating pipeline 4, and pressure-air enters the air hose 35 of spray gun from air pipe line 5.When carrying out spraying operation, cylinder 39 actions drive control link 38 and open needle-valve 33, and coating by crossover sub 34, enters into coating discharge nozzle 37 from coating pipe 36, is ejected in the shower nozzle 31.Pressure-air is transported to the air motor 32 by crossover sub 34 from air hose 35, air motor 32 High Rotation Speeds, drive shower nozzle 31 High Rotation Speeds, the liquid coating that enters shower nozzle 31 is thrown away at a high speed, be atomized spray to having high cleanliness and reach the steel tube surface of technological requirement depth of abrasion pattern, thereby form the paint film of good adhesion.Spray complete after, needle-valve is closed in cylinder 39 action, coating is sealed in the coating pipe.Air pipe line is provided with pneumatic triple piece control and adjusts the pressure that enters the spray gun air hose, adjusts the rotating speed of air motor, thus the rotating speed of control shower nozzle.Shower nozzle just can produce the rotating speed of 35000~40000rpm when air pressure is 0.5MPa, rotating speed can allow coating better be atomized faster, reaches better spraying effect.Shower nozzle uses aluminium alloy to make, and has alleviated the shower nozzle quality, has prolonged the service life of air motor, is more convenient for to the maintenance of air motor.
Be provided with travel switch in the spray gun walking mechanism in the utility model, according to the length adjustment of spraying steel pipe, control spray gun travel distance; When the spray gun walking mechanism retreats, carry out spraying operation, reducing motor is by Frequency Converter Control speed, thus the speed of control spray gun motion, and the speed of assurance meets technological requirement.
Course of work principle of the present utility model can be described as follows:
1, manually control: close a switch plugged and source of the gas.System chooses manual gear, select suction, the second pneumatic operated valve cuts out, and the first pneumatic operated valve is opened, driven by motor measuring pump plunger retreats, paint pump action beginning feeding, plunger retreat into rear when spacing, and measuring pump is full of, motor stops operating, plunger stops to retreat, and the first pneumatic operated valve cuts out, and paint pump stops feeding automatically.
During spraying, the spray gun walking mechanism is advanced, and spray gun enters from pipe diameter and walks out steel pipe, opens the air motor magnetic valve, and pressure-air enters air motor, the shower nozzle high speed rotating.The action of control needle-valve cylinder, needle-valve is opened, driven by motor measuring pump plunger advancement, coating is delivered to the shower nozzle from the coating pipeline, and shower nozzle is in the High Rotation Speed state, and after coating fully atomized, the spray gun walking mechanism retreated, the beginning spraying operation.Coating after the atomizing uniformly sprays steel pipe inner wall, thereby forms uniform paint film.
After spraying was finished, the spray gun walking mechanism stopped to retreat, and the measuring pump plunger halts, and needle-valve is closed, and cut off the air motor magnetic valve, and motor stops operating.
2, automatically control: after being transformed into auto state, whole auto state is controlled by PLC, according to spray gun walking mechanism speed and the measuring pump plunger advancement speed set, guarantees the thickness of coating paint film, automatically finishes spraying operation.Under the auto state, press the spraying button, stop after driven by motor measuring pump automatic material-absorbing limit switch control material is full; The spray gun walking mechanism is advanced, and during to front limit, spray gun halts; Open the air motor magnetic valve, air motor drives the shower nozzle high speed rotating; The action of noticeable degree cylinder, needle-valve is opened; Driven by motor measuring pump plunger advancement, coating is delivered to the shower nozzle from the coating pipeline, the shower nozzle High Rotation Speed, the huge centrifugal force of generation fully atomizes coating; The spray gun walking mechanism retreats, the beginning spraying operation, and the coating after the atomizing uniformly sprays steel pipe inner wall, forms the paint film that meets uniformly technological requirement thickness.The spray gun walking mechanism is run into and is stopped after spacing afterwards, and the measuring pump plunger halts, the action of needle-valve air cylinder, needle-valve is closed, and closes the air motor magnetic valve, and spraying is stopped the rotation, steel tube inner spray is coated with operation and finishes, and automatic control program resets, and prepares the next spraying circulation of beginning.

Claims (4)

1. steel tube inner spray automatic doubler surface glouer is characterized in that comprising:
The spray gun walking mechanism, comprise support, rack-mount reducing motor and driving chain, and be fixed on spraying dolly on the driving chain, and driving chain links to each other with the reducing motor transmission, and reducing motor can drive the spraying dolly that is fixed on the chain and move reciprocatingly;
The coating injection mechanism is installed on the spraying dolly, comprises paint pump, measuring pump, and paint pump links to each other with measuring pump by the coating pipeline provides coating to measuring pump;
Spray gun, its rear end are fixed on the spraying dolly, and the direction of motion of front end edge spraying dolly is stretched out to a side, and spray gun links to each other with measuring pump by the coating pipeline, and measuring pump offers spray gun to coating by the coating pipeline.
2. steel tube inner spray automatic doubler surface glouer as claimed in claim 1, it is characterized in that: described spray gun comprises shower nozzle, air motor, needle-valve, crossover sub, air hose, coating pipe and coating discharge nozzle; Shower nozzle, air motor, crossover sub, air hose are sequentially continuous, the coating discharge nozzle is connected between shower nozzle and the crossover sub, the coating pipe is located in crossover sub and the air hose and by crossover sub and is communicated with the coating discharge nozzle, needle-valve is arranged between the outlet and crossover sub of coating pipe, and passes coating pipe inside by control link and link to each other with the cylinder that is arranged on the spray gun afterbody; The coating pipe also links to each other with measuring pump by the coating pipeline, and air hose also links to each other with the high-pressure air source in the external world by air pipe line.
3. steel tube inner spray automatic doubler surface glouer as claimed in claim 1, it is characterized in that: described paint pump is the modularization plunger displacement pump take air as power.
4. steel tube inner spray automatic doubler surface glouer as claimed in claim 1, it is characterized in that: described measuring pump comprises frame and rack-mounted reducing motor, chain, metering barrel and measuring pump plunger; Chain links to each other with the reducing motor transmission and links to each other with the measuring pump plunger driving, the measuring pump plunger slides with the metering barrel and links to each other, the metering barrel also links to each other with paint pump and spray gun respectively by the coating pipeline, the coating pipeline that links to each other with paint pump at measuring pump is provided with the first pneumatic operated valve, and the coating pipeline that links to each other with spray gun at measuring pump is provided with the second pneumatic operated valve.
CN 201220235302 2012-05-21 2012-05-21 Spraying device inside steel pipe Expired - Lifetime CN202638701U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220235302 CN202638701U (en) 2012-05-21 2012-05-21 Spraying device inside steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220235302 CN202638701U (en) 2012-05-21 2012-05-21 Spraying device inside steel pipe

Publications (1)

Publication Number Publication Date
CN202638701U true CN202638701U (en) 2013-01-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220235302 Expired - Lifetime CN202638701U (en) 2012-05-21 2012-05-21 Spraying device inside steel pipe

Country Status (1)

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CN (1) CN202638701U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104209013A (en) * 2014-08-01 2014-12-17 江苏云才材料有限公司 Preparation method of non-symmetrical inner wall separation membrane
CN109058745A (en) * 2018-08-18 2018-12-21 徐州华显凯星信息科技有限公司 A kind of pipe fitting inner wall single lubricator
CN109569933A (en) * 2018-12-05 2019-04-05 中国船舶重工集团公司第七〇九研究所 A kind of Teflon spray equipment suitable for nuclear power station sampling system pipeline
CN110433994A (en) * 2019-09-11 2019-11-12 黎明职业大学 A kind of coating equipment suitable for the inner-wall spraying of circular hole in pipe fitting
CN112317207A (en) * 2020-10-23 2021-02-05 湖州中福人管业科技有限公司 Pipeline spraying equipment for machining with uniform thickness

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104209013A (en) * 2014-08-01 2014-12-17 江苏云才材料有限公司 Preparation method of non-symmetrical inner wall separation membrane
CN104209013B (en) * 2014-08-01 2017-01-11 江苏云才材料有限公司 Preparation method of non-symmetrical inner wall separation membrane
CN109058745A (en) * 2018-08-18 2018-12-21 徐州华显凯星信息科技有限公司 A kind of pipe fitting inner wall single lubricator
CN109569933A (en) * 2018-12-05 2019-04-05 中国船舶重工集团公司第七〇九研究所 A kind of Teflon spray equipment suitable for nuclear power station sampling system pipeline
CN110433994A (en) * 2019-09-11 2019-11-12 黎明职业大学 A kind of coating equipment suitable for the inner-wall spraying of circular hole in pipe fitting
CN110433994B (en) * 2019-09-11 2021-08-10 黎明职业大学 Coating equipment suitable for spraying inner wall of inner circular hole of pipe fitting
CN112317207A (en) * 2020-10-23 2021-02-05 湖州中福人管业科技有限公司 Pipeline spraying equipment for machining with uniform thickness

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130102