CN110947533B - Spraying device for pipeline repair and using method thereof - Google Patents

Spraying device for pipeline repair and using method thereof Download PDF

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Publication number
CN110947533B
CN110947533B CN201911297627.7A CN201911297627A CN110947533B CN 110947533 B CN110947533 B CN 110947533B CN 201911297627 A CN201911297627 A CN 201911297627A CN 110947533 B CN110947533 B CN 110947533B
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CN
China
Prior art keywords
hole
cup
holes
hole section
pneumatic motor
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Active
Application number
CN201911297627.7A
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Chinese (zh)
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CN110947533A (en
Inventor
陈卫星
顾卫东
沈国红
许若岚
沙广杰
丁致瑜
陈春
蒋隽睿
黄�俊
程烨
张翔
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 Water Construction & Engineering Co ltd
Shanghai Tunnel Engineering Co Ltd
Original Assignee
Shanghai Water Construction & Engineering Co ltd
Shanghai Tunnel Engineering Co Ltd
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Application filed by Shanghai Water Construction & Engineering Co ltd, Shanghai Tunnel Engineering Co Ltd filed Critical Shanghai Water Construction & Engineering Co ltd
Priority to CN201911297627.7A priority Critical patent/CN110947533B/en
Publication of CN110947533A publication Critical patent/CN110947533A/en
Application granted granted Critical
Publication of CN110947533B publication Critical patent/CN110947533B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B05B13/0636Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1035Driving means; Parts thereof, e.g. turbine, shaft, bearings

Abstract

The invention relates to a spraying device for repairing a pipeline and a using method thereof, wherein the spraying device comprises: the pneumatic motor is fixedly arranged at the discharge end of the feeding pipe, and a communicating pipe for paint to pass through and communicated with the feeding pipe is arranged in the pneumatic motor; and the rotary cup is connected to one end of the pneumatic motor, which is far away from the feeding pipe, in a driving manner and is communicated with the communicating pipe, the cup wall of the rotary cup is provided with spray hole groups which are arranged in a wave shape, and the coating in the rotary cup is sprayed outwards through the spray hole groups after being rotated and atomized at a high speed by starting the pneumatic motor and driving the rotary cup to rotate. The invention effectively solves the problem of dangerous use of the electric motor, utilizes the pneumatic motor to drive the rotary cup to rotate, ensures the construction safety, can realize single long-distance spraying, and optimizes the structure of the rotary cup to ensure that the coating is uniformly sprayed on the inner wall of the pipeline.

Description

Spraying device for pipeline repair and using method thereof
Technical Field
The invention relates to the field of building construction, in particular to a spraying device for pipeline repair and a using method thereof.
Background
At present, the water supply pipeline of long-term operation receives the underground environment, raw water quality, factor influences such as pipeline material, can produce pipeline corrosion unavoidably, the damage, defects such as scale deposit and oxidation, at present more adopt from inside the pipeline to carry out the spraying in order to form the coating in the pipeline inside with restoreing above-mentioned defect, however, current spraying equipment adopts the rotary cup to be connected with electric motor drive mostly, drive the high-speed rotation of rotary cup through electric motor, and then reach atomizing effect, and utilize the rotary cup of high-speed rotation to spray coating to the pipe wall, however, this kind of method is when in-service use, because electric motor long-time high-speed operation can be damaged because of the high temperature, form the danger that the dust meets the motor of high temperature after the coating atomizing even when high temperature weather uses, also have electric leakage, the danger of short circuit.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a spraying device for repairing a pipeline and a using method thereof, solves the problem of using danger of an electric motor, ensures construction safety and can realize single long-distance spraying by driving a rotating cup to rotate by a pneumatic motor, and optimizes the structure of the rotating cup to uniformly spray paint on the wall of the pipeline.
The technical scheme for realizing the purpose is as follows:
the present invention provides a spray coating device for repairing a pipe, which is installed at a discharge end of a supply pipe for transferring a coating material and sprays the coating material outward, the spray coating device comprising:
the pneumatic motor is fixedly arranged at the discharge end of the feeding pipe, and a communicating pipe for paint to pass through and communicated with the feeding pipe is arranged in the pneumatic motor; and
the rotary cup is connected to one end of the pneumatic motor, far away from the feeding pipe, and communicated with the communicating pipe in a driving mode, the cup wall of the rotary cup is provided with spray hole groups which are arranged in a wave mode, and the pneumatic motor is started and drives the rotary cup to rotate, so that the coating in the rotary cup is sprayed outwards through the spray hole groups after being atomized through high-speed rotation.
According to the spraying device for repairing the pipeline, the spraying device is arranged at the discharge end of the feeding pipe, so that the coating enters the rotary cup through the communicating pipe, the pneumatic motor drives the rotary cup to rotate at a high speed, the coating entering the rotary cup is atomized and is sprayed out from the spray hole group, the inner wall of the pipeline can be sprayed, the pneumatic motor is not required to be closed and cooled after being sprayed for a certain distance, the spraying device is suitable for single long-distance spraying, the problem of using danger of the electric motor is solved, the rotary cup is driven to rotate by the pneumatic motor, the construction safety is guaranteed, single long-distance spraying can be realized, in addition, the structure of the rotary cup is optimized, and the coating is uniformly sprayed on the pipe wall.
The spraying device for repairing the pipeline is further improved in that the spraying hole group comprises two V-shaped hole sections which are oppositely arranged, an A-shaped hole section formed at the joint of the two V-shaped hole sections and an annular hole section formed on the cup wall at the opening of the rotating cup;
the V-shaped hole section, the A-shaped hole section and the annular hole section are formed by enclosing a plurality of holes with different apertures, the open end of the V-shaped hole section is arranged at a position close to the annular hole section, and the closed end of the V-shaped hole section is arranged at the height of the rotating cup 1/3.
The spraying device for repairing the pipeline is further improved in that the included angle formed by the enclosing of the V-shaped hole sections is 60 degrees.
The spraying device for repairing the pipeline is further improved in that the V-shaped hole section comprises a plurality of first holes which are arranged at intervals and are enclosed to be V-shaped, a plurality of second holes which are arranged at intervals along one side of the first holes, which is far away from the pneumatic motor, and are enclosed to be V-shaped, and two third holes which are arranged at intervals on one side of the second holes, which is far away from the pneumatic motor, and are enclosed to be V-shaped;
the aperture of the first hole is smaller than that of the second hole, the third hole is in a strip shape, and the arrangement direction of the third hole is parallel to the arrangement direction of the corresponding second hole.
The spraying device for repairing the pipeline is further improved in that a plurality of fourth holes are arranged between the third holes and the annular hole section at intervals, the arrangement direction of the plurality of fourth holes is parallel to the arrangement direction of the corresponding third holes, and the aperture of each fourth hole is equal to that of each second hole.
The spraying device for repairing the pipeline is further improved in that the bottom of the A-shaped hole section is arranged at the height of the rotating cup 2/3, the top of the A-shaped hole section is close to the annular hole section, and the A-shaped hole section comprises a plurality of fifth holes which are arranged between two adjacent V-shaped hole sections at intervals and enclose to form an A shape and a sixth hole which is arranged on one side of the fifth hole close to the annular hole section;
the aperture of the fifth hole is equal to that of the first hole, and the sixth hole is in a strip shape and the arrangement direction of the sixth hole is parallel to the annular hole section.
The spraying device for repairing the pipeline is further improved in that the annular hole section comprises seventh holes which are arranged on the cup wall at the opening of the rotating cup at intervals, and the aperture of the seventh holes is equal to that of the second holes.
The spraying device for repairing the pipeline is further improved in that one end, far away from the rotary cup, of the pneumatic motor is provided with an air inlet pipe for compressed air to enter and an air outlet for compressed air to exhaust.
The spraying device for repairing the pipeline is further improved in that the pneumatic motor further comprises a rotating part which is sleeved on the communicating pipe and can be driven to rotate by compressed air, and the rotating part is fixedly connected with the rotary cup through a bolt.
The invention also provides a using method of the spraying device for repairing the pipeline, which comprises the following steps:
providing a spraying device, installing the spraying device at the discharge end of the feeding pipe and placing the spraying device in a pipeline to be repaired;
starting the pneumatic motor to drive the rotary cup to rotate;
the paint is conveyed to the rotary cup through the feeding pipe, enters the rotary cup through the communicating pipe, is atomized by the rotation of the rotary cup and is sprayed outwards through the jet hole group, and therefore the paint is sprayed to the inner wall of the pipeline to be repaired.
Drawings
Fig. 1 is a schematic view showing an assembled state of the spray coating device for repairing a pipe according to the present invention.
Fig. 2 is an enlarged schematic view of a bell cup portion of the spray coating device for repairing a pipe according to the present invention.
Fig. 3 is a schematic view of the flat laying state of the bell cup portion in the spray coating device for repairing a pipe according to the present invention.
Fig. 4 is an enlarged schematic view of an air motor portion of the spray coating device for pipe rehabilitation according to the present invention.
Fig. 5 is a left side view of fig. 1 of the spray coating device for pipe rehabilitation of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
According to the spraying device for repairing the pipeline, the spraying device is arranged at the discharge end of the feeding pipe, so that the coating enters the rotary cup through the communicating pipe, the pneumatic motor drives the rotary cup to rotate at a high speed, the coating entering the rotary cup is atomized and is sprayed out from the spray hole group, the inner wall of the pipeline can be sprayed, the pneumatic motor is not required to be closed and cooled after being sprayed for a certain distance, the spraying device is suitable for single long-distance spraying, the problem of using danger of the electric motor is solved, the rotary cup is driven to rotate by the pneumatic motor, the construction safety is guaranteed, single long-distance spraying can be realized, in addition, the structure of the rotary cup is optimized, and the coating is uniformly sprayed on the pipe wall. The spraying device for repairing the pipeline of the invention is explained with the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic view illustrating an assembled state of a spray coating device for repairing a pipe according to the present invention. The spraying device for repairing the pipeline of the invention is explained with reference to fig. 1.
As shown in fig. 1, 2 and 4, the painting apparatus for repairing a pipe according to the present invention, which is installed at a discharge end of a supply pipe for transferring paint and sprays the paint outward, comprises:
the pneumatic motor 11 is fixedly arranged at the discharge end of the feeding pipe, and a communicating pipe 111 which is used for paint to pass through and communicated with the feeding pipe is arranged in the pneumatic motor 11; and
the rotary cup 12 connected to one end of the pneumatic motor 11 far away from the feeding pipe and communicated with the communicating pipe 111 is driven, the cup wall of the rotary cup 12 is provided with a wave-shaped arranged spraying hole group, and the coating in the rotary cup 12 is sprayed outwards through the spraying hole group after being rotated and atomized at a high speed by starting the pneumatic motor 11 and driving the rotary cup 12 to rotate.
Preferably, the feeding end of the feeding pipe is communicated with the storage tank, and the paint in the storage tank is pumped into the feeding pipe by the feeding pump and then flows into the spraying device from the discharging end.
Further, as shown in fig. 5, an air inlet pipe 113 for compressed air to enter and an air outlet 114 for compressed air to exhaust are disposed at one end of the air motor 11 away from the rotating cup 12, and the air outlet 114 is disposed at one side away from the rotating cup 12, so that the sprayed paint does not block the air outlet 114 in the actual use process, thereby affecting the rotation speed and the service life of the air motor 11.
Preferably, the diameter of the portion of the bell cup 12 remote from the air motor 11 is greater than the diameter of the portion of the bell cup 12 proximate to the air motor 11 to facilitate more uniform outward spraying of the paint.
Preferably, the pneumatic motor 11 further includes a rotating portion 112 sleeved on the communicating pipe 111 and driven by the compressed air to rotate, and a housing sleeved outside the rotating portion, the housing is fixedly connected to the communicating pipe, a blade for driving the rotating portion to rotate is disposed in a space between the housing and the communicating pipe 111, the rotating portion 112 is fixedly connected to the rotating cup 12 by a bolt, that is, the communicating pipe 111 is communicated with the feeding pipe and remains stationary, the compressed air is introduced into the air inlet pipe 113 by an air compressor, and the compressed air drives the blade to drive the rotating portion 112 to rotate around the communicating pipe 111 and drive the rotating cup 12 to rotate together.
As a preferred embodiment of the present invention, referring to fig. 3, the injection hole set includes two V-shaped hole sections 121 disposed oppositely, an a-shaped hole 122 section formed at the junction of the two V-shaped hole sections 121, and an annular hole section 123 formed on the cup wall at the opening of the rotating cup 12;
the V-shaped hole section 121, the a-shaped hole section 122 and the annular hole section 123 are formed by enclosing a plurality of holes with different apertures, the open end of the V-shaped hole section 121 is arranged at a position close to the annular hole section 123, the closed end of the V-shaped hole section 121 is arranged at the 1/3 height of the rotating cup 12, and the 1/3 part of the rotating cup 12 close to the bottom is a small discharge section, so that the coating is not completely atomized, and thus the spraying hole group is arranged from a position above the 1/3 height.
Preferably, the angle formed by the V-shaped hole segments 121 is 60 °.
Further, the V-shaped hole segment 121 includes a plurality of first holes 1211 disposed at intervals and enclosing to form a V shape, a plurality of second holes 1212 disposed at intervals along a side of the first holes 1211 away from the pneumatic motor 11 and enclosing to form a V shape, and two third holes 1213 disposed at intervals on a side of the second holes 1212 away from the pneumatic motor and enclosing to form a V shape;
the aperture of the first aperture 1211 is smaller than the aperture of the second aperture 1212, the third aperture 1213 is elongated, and the arrangement direction of the third aperture 1213 is parallel to the arrangement direction of the corresponding second aperture 1212.
Specifically, a plurality of fourth holes 1214 are arranged between the third holes 1213 and the annular hole section 123 at intervals, the arrangement direction of the plurality of fourth holes 1214 is parallel to the arrangement direction of the corresponding third holes 1213, the aperture of the fourth holes 1214 is equal to that of the second holes 1212, and since the paint at the height 1/3-2/3 of the rotating cup 12 is completely atomized, the V-shaped hole section 121 is arranged from the height 1/3, and the strip-shaped third holes 1213 are arranged, so that the completely atomized paint can be sprayed outwards from the part.
Further, the bottom of the a-shaped hole section 122 is disposed at the 2/3 height of the cup 12, and the top of the a-shaped hole section 122 is close to the ring-shaped hole section 123, and includes a plurality of fifth holes 1221 disposed between two adjacent V-shaped hole sections 121 at intervals and enclosing to form an a shape, and a sixth hole 1222 disposed on one side of the fifth hole 1221 close to the ring-shaped hole section 123;
the aperture of the fifth hole 1221 is equal to the aperture of the first hole 1211, the sixth hole 1222 is elongated and is disposed parallel to the annular hole segment 123, and the a-shaped hole segment 122 is disposed to further spray the atomized coating material, so as to prevent the excessive coating material from being accumulated in the rotating cup 12.
Preferably, the a-shaped hole section 122 is provided with six rows of holes, which are, from bottom to top, four fifth holes 1221, three fifth holes 1221, two fifth holes 1221, one fifth hole 1221, and one sixth hole 1222, so as to form an a shape in combination, which can realize outward spraying of more paint.
Further, the annular hole section 123 includes seventh holes 1231 spaced apart from the wall of the opening of the cup 12, the diameter of the seventh holes 1231 is equal to the diameter of the second holes 1212, and although the coating material passing through the opening of the cup 12 is less, the coating material is prevented from splashing outward from the opening of the cup 12 to affect the coating quality, so the annular hole section 123 is disposed to ensure that the coating material is completely thrown away, thereby preventing the residual coating material from being sprayed outward from the opening of the cup 12.
The specific embodiment of the invention is as follows:
the pneumatic motor 11 is arranged at the discharge end of the feeding pipe, the feeding pipe is communicated with the communicating pipe 111, the rotary cup 12 is further arranged at the other end of the pneumatic motor 11, and the communicating pipe 111 is communicated with the interior of the rotary cup 12;
compressed air is introduced into the pneumatic motor 11 from the air inlet pipe 113 to drive the rotating part 112 of the pneumatic motor to rotate and drive the rotating cup 12 to rotate, so as to supply the paint to the rotating cup 12, and the paint is introduced into the rotating cup 12 from the communicating pipe 111;
the spraying device is extended into the pipeline, and the gas in the pneumatic motor 11 is sprayed out from the gas outlet 114;
after entering the high-speed rotating rotary cup 12, the coating is atomized at a position below 1/3 of the rotary cup 12, after the coating is atomized, the coating is sprayed outwards from the V-shaped hole section 121 and the A-shaped hole section 122 at the 1/3-2/3 height of the rotary cup 12, and the remaining small amount of coating is sprayed outwards from the annular hole section 123, so that the atomized coating in the rotary cup 12 is completely sprayed out and forms a coating on the inner wall of the pipeline;
by using the combination of the rotating cup 12 and the pneumatic motor 11, the spraying device can perform long-distance spraying operation, the pneumatic motor 11 can avoid the problem of stopping cooling due to overhigh temperature, and the combination of the a-shaped hole section 122 and the V-shaped hole section 121 enables the coating to be uniformly sprayed outwards, so that the spraying quality is ensured.
The invention also provides a using method of the spraying device for repairing the pipeline, which comprises the following steps:
providing a spraying device, installing the spraying device at the discharge end of the feeding pipe and placing the spraying device in a pipeline to be repaired;
starting the pneumatic motor 11 to drive the rotating cup 12 to rotate;
the paint is delivered to the bell cup 12 through the feed pipe, enters the bell cup 12 through the communicating pipe 111, and the rotation of the bell cup 12 causes the paint to be atomized and sprayed outward from the spray hole group, thereby spraying the paint onto the inner wall of the pipe to be repaired.
The specific operation mode of the practical implementation of the using method provided by the invention is as follows:
the pneumatic motor 11 is arranged at the discharge end of the feeding pipe, the feeding pipe is communicated with the communicating pipe 111, the rotary cup 12 is further arranged at the other end of the pneumatic motor 11, and the communicating pipe 111 is communicated with the interior of the rotary cup 12;
compressed air is introduced into the pneumatic motor 11 from the air inlet pipe 113 to drive the rotating part 112 of the pneumatic motor to rotate and drive the rotating cup 12 to rotate, so as to supply the paint to the rotating cup 12, and the paint is introduced into the rotating cup 12 from the communicating pipe 111;
the spraying device is extended into the pipeline, and the gas in the pneumatic motor 11 is sprayed out from the gas outlet 114;
after entering the high-speed rotating rotary cup 12, the coating is atomized at a position below 1/3 of the rotary cup 12, after the coating is atomized, the coating is sprayed outwards from the V-shaped hole section 121 and the A-shaped hole section 122 at the 1/3-2/3 height of the rotary cup 12, and the remaining small amount of coating is sprayed outwards from the annular hole section 123, so that the atomized coating in the rotary cup 12 is completely sprayed out and forms a coating on the inner wall of the pipeline;
by using the combination of the rotating cup 12 and the pneumatic motor 11, the spraying device can perform long-distance spraying operation, the pneumatic motor 11 can avoid the problem of stopping cooling due to overhigh temperature, and the combination of the a-shaped hole section 122 and the V-shaped hole section 121 enables the coating to be uniformly sprayed outwards, so that the spraying quality is ensured.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims (9)

1. A painting apparatus for repairing a conduit, the painting apparatus being mounted to a discharge end of a supply pipe for delivering paint and adapted to spray the paint outwardly, the painting apparatus comprising:
the pneumatic motor is fixedly arranged at the discharge end of the feeding pipe, and a communicating pipe for the coating to pass through and communicated with the feeding pipe is arranged in the pneumatic motor; and
the rotary cup is connected to one end, far away from the feeding pipe, of the pneumatic motor in a driving mode and communicated with the communicating pipe, the cup wall of the rotary cup is provided with spray hole groups which are arranged in a wave mode, and the pneumatic motor is started and the rotary cup is driven to rotate, so that the coating in the rotary cup is sprayed outwards through the spray hole groups after being rotated and atomized at a high speed;
the injection punch combination includes two V-arrangement hole sections that set up relatively, is formed at two the A-arrangement hole section of V-arrangement hole section handing-over department and be formed at revolve the annular hole section on the opening part cup wall of cup, the V-arrangement hole section A-arrangement hole section and the annular hole section is enclosed by the unequal hole in a plurality of apertures and is closed and form, the open end of V-arrangement hole section sets up in being close to the position of annular hole section, the blind end of V-arrangement hole section set up in revolve cup 1/3 high department.
2. A spray assembly for pipe rehabilitation according to claim 1 wherein said V-shaped sections enclose an included angle of 60 °.
3. The spray coating device for repairing a pipeline according to claim 1, wherein the V-shaped hole section comprises a plurality of first holes which are arranged at intervals and enclose a V shape, a plurality of second holes which are arranged at intervals along one side of the first holes, which is far away from the pneumatic motor, and enclose a V shape, and two third holes which are arranged at intervals on one side of the second holes, which is far away from the pneumatic motor, and enclose a V shape;
the aperture of the first hole is smaller than that of the second hole, the third hole is long-strip-shaped, and the setting direction of the third hole is parallel to the arrangement direction of the second hole correspondingly.
4. The spraying device for repairing a pipeline according to claim 3, wherein a plurality of fourth holes are further arranged between the third holes and the annular hole section at intervals, the arrangement direction of the plurality of fourth holes is parallel to the arrangement direction of the corresponding third holes, and the hole diameters of the fourth holes are equal to the hole diameters of the second holes.
5. The spraying device for repairing the pipeline according to claim 3, wherein the bottom of the A-shaped hole section is arranged at the height of the rotating cup 2/3, the top of the A-shaped hole section is close to the annular hole section, and the A-shaped hole section comprises a plurality of fifth holes which are arranged between two adjacent V-shaped hole sections at intervals and enclose an A shape, and a sixth hole which is arranged on one side of the fifth hole close to the annular hole section;
the aperture of the fifth hole is equal to that of the first hole, and the sixth hole is long-strip-shaped and is parallel to the annular hole section in the arrangement direction.
6. The spray coating device for pipe repair of claim 3, wherein the annular hole section comprises seventh holes spaced apart from the cup wall at the opening of the rotating cup, and the diameter of the seventh holes is equal to the diameter of the second holes.
7. The spray coating device for pipe rehabilitation according to claim 1, wherein an end of the air motor remote from the bell cup is provided with an intake pipe for the intake of compressed air and an exhaust port for the exhaust of the compressed air.
8. The spraying device for repairing a pipeline according to claim 1, wherein the pneumatic motor further comprises a rotating part sleeved on the communicating pipe and driven to rotate by compressed air, and the rotating part is fixedly connected with the rotating cup through a bolt.
9. A method of using a spray coating device for pipe rehabilitation according to claim 1, comprising the steps of:
providing the spraying device, and installing the spraying device at the discharge end of the feeding pipe and placing the spraying device in a pipeline to be repaired;
starting the pneumatic motor to drive the rotary cup to rotate;
and conveying the coating to the rotary cup through the feeding pipe, wherein the coating enters the rotary cup through the communicating pipe, and the rotation of the rotary cup enables the coating to be atomized and sprayed outwards through the spraying hole group, so that the coating is sprayed to the inner wall of the pipeline to be repaired.
CN201911297627.7A 2019-12-17 2019-12-17 Spraying device for pipeline repair and using method thereof Active CN110947533B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911297627.7A CN110947533B (en) 2019-12-17 2019-12-17 Spraying device for pipeline repair and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911297627.7A CN110947533B (en) 2019-12-17 2019-12-17 Spraying device for pipeline repair and using method thereof

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Publication Number Publication Date
CN110947533A CN110947533A (en) 2020-04-03
CN110947533B true CN110947533B (en) 2021-02-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112958341B (en) * 2021-03-19 2022-01-18 杭州湘泰环境科技有限公司 Spraying device for pipeline repair and using method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2614895B1 (en) * 2010-09-09 2020-04-08 Toyota Jidosha Kabushiki Kaisha Rotary atomizing painting device
CN202876981U (en) * 2012-11-26 2013-04-17 大庆北油工程技术服务有限公司 Pneumatic spray gun
CN105149124B (en) * 2015-07-10 2017-12-19 杨建林 A kind of multiaxis revolves cup electrostatic sprayer
CN205042700U (en) * 2015-09-11 2016-02-24 上海图博可特石油管道涂层有限公司 Spraying device of tubular product undercoating is carried to hole enlargement
CN207887427U (en) * 2017-12-13 2018-09-21 深圳市百安百科技有限公司 A kind of two-way pipeline centrifugal spraying equipment
CN108114828A (en) * 2018-02-10 2018-06-05 杨建伟 A kind of high speed revolves cup flush coater
CN208131309U (en) * 2018-03-13 2018-11-23 东莞市飞吻涂装设备科技有限公司 A kind of mounting structure of paint valve and air motor

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