CN217796896U - Repaired mouth spray gun, equipment and system in pipeline - Google Patents
Repaired mouth spray gun, equipment and system in pipeline Download PDFInfo
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- CN217796896U CN217796896U CN202221987251.XU CN202221987251U CN217796896U CN 217796896 U CN217796896 U CN 217796896U CN 202221987251 U CN202221987251 U CN 202221987251U CN 217796896 U CN217796896 U CN 217796896U
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- inlet pipe
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Abstract
The application provides a repaired mouth spray gun, equipment and system in pipeline, wherein, repaired mouth spray gun in the pipeline is including advancing the powder pipe, dividing powder container and shower nozzle subassembly. The powder inlet pipe can rotate around the axis of the powder inlet pipe; the powder distributing container is arranged at the outlet end of the powder inlet pipe and is communicated with the powder inlet pipe; the spray head assembly comprises a spray head and an arc-shaped hose; the spray head is arranged on one side of the powder distribution container and is communicated with the powder distribution container through the arc-shaped hose, and the powder outlet direction of the spray head is perpendicular to the axis of the powder inlet pipe. Through the scheme, the corrosion prevention treatment of the circumferential weld inside the conveying pipeline can be realized, and the leakage risk of the conveying pipeline is reduced.
Description
Technical Field
The application relates to the technical field of gas-liquid storage and transportation, in particular to a repaired mouth spray gun, equipment and a system in a pipeline.
Background
The steel pipe is used as a conveying medium for gas and liquid such as petroleum, natural gas, drinking water, reclaimed water, sewage and the like, and plays a very important role in national production. And (4) conveying the steel pipes subjected to the anticorrosion treatment to a construction site, and then connecting the steel pipes into a conveying pipeline by welding. The joint of two welded steel pipes in the conveying pipeline forms an inner circumferential weld and an outer circumferential weld.
At present, the external circumferential weld is basically subjected to anticorrosion treatment in modes of manual work and the like. However, the inner space of the steel pipe is narrow and the oxygen is thin, so that the person is difficult to carry out anticorrosion construction in the conveying pipeline, and most of internal girth welds are not subjected to anticorrosion treatment, so that the conveying pipeline is buried with great hidden leakage danger.
SUMMERY OF THE UTILITY MODEL
The utility model provides a repaired mouth spray gun, equipment and system in pipeline to realize the anticorrosive treatment of the inside circumferential weld of pipeline, reduce pipeline and leak the risk. The specific technical scheme is as follows:
in a first aspect, the present application provides a repaired mouth spray gun in pipeline, including:
the powder inlet pipe can rotate around the axis of the powder inlet pipe;
the powder distributing container is arranged at the outlet end of the powder inlet pipe and is communicated with the powder inlet pipe;
the spray head assembly comprises a spray head and an arc-shaped hose; the spray head is arranged on one side of the powder distribution container and communicated with the powder distribution container through the arc-shaped hose, and the powder outlet direction of the spray head is perpendicular to the axis of the powder inlet pipe.
The scheme that this application embodiment provided can make the powder along with compressed air through the powder inlet pipe get into divide the powder container after, produce centrifugal force when the arc hose that communicates with branch powder container to with the powder that has centrifugal force along with the continuous rotatory even spraying of shower nozzle subassembly is in waiting to mend mouthful pipeline's inside circumferential weld department. Therefore, the scheme can realize the anti-corrosion treatment of the circumferential weld inside the conveying pipeline and reduce the leakage risk of the conveying pipeline.
In some embodiments of the present application, the spray head assembly further includes a mounting bracket, and the spray head is disposed at one side of the powder distribution container through the mounting bracket;
the mounting rack comprises a first connecting plate and a fixing rod; the fixing rod is connected with the powder distributing container in a movable mode along a first direction, and/or the first connecting plate is connected with the fixing rod in a movable mode along the first direction, wherein the first direction is a direction perpendicular to the axis of the powder feeding pipe.
In some embodiments of the present application, the number of showerhead assemblies is two; the two spray head assemblies are in central symmetry with respect to the axis of the powder inlet pipe.
In some embodiments of the present application, the mount further comprises a second connecting plate;
the second connecting plate is connected with the first connecting plate in a mode of moving along the direction parallel to the axial line of the powder inlet pipe.
In some embodiments of the present application, the second connecting plate includes a bottom plate and two side plates disposed at edges of the bottom plate, and the side plates are provided with strip-shaped guide holes;
and a sliding rod matched with the strip-shaped guide hole is arranged at the bottom of the spray head.
In some embodiments of the present application, the nozzle is flat and the powder outlet is a strip-shaped gap.
In a second aspect, the present application further provides a joint coating device in a pipeline, including:
the powder supplying vehicle comprises a driving device and a powder supplying device;
according to the internal pipe repaired mouth spray gun of any one of the first aspect, the powder inlet pipe of the internal pipe repaired mouth spray gun is arranged at the head or tail of the powder supplying vehicle and is in transmission connection with the driving device; the inlet end of the powder inlet pipe is connected with the powder supply device.
In some embodiments of the present application, the powder supply device includes a powder bin and an air pump;
a fluidization partition plate is arranged in the powder bin and divides the powder bin body into a fluidization bin and a pressure gas bin; the fluidization bin is positioned above the compressed gas bin; the air pump is connected with the air compression bin.
In some embodiments of the present application, further comprising a baffle disc;
the baffle disc is arranged at one end of the powder inlet pipe close to the powder supply vehicle; the baffle disc and the powder inlet pipe are coaxially arranged.
In a third aspect, the present application further provides an in-pipeline joint coating system, including:
an in-pipe joint coating apparatus according to any one of the second aspect above;
the heater is arranged on the outer side of the conveying pipeline to be repaired so as to heat the circumferential weld of the conveying pipeline to be repaired.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a nozzle gun in a pipeline provided by the present application;
FIG. 2 is a cross-sectional view of the in-line repaired-port spray gun of FIG. 1 operating in a pipe diameter delivery pipe;
FIG. 3 is a cross-sectional view of the in-pipe joint coating gun of FIG. 1 working in a pipe diameter conveying pipeline;
fig. 4 is a schematic structural diagram of the operation of the pipe internal joint coating device provided by the present application in a conveying pipe to be joint coated;
FIG. 5 is a schematic structural view of the apparatus for repairing a port in a pipeline in FIG. 4;
FIG. 6 is a cross-sectional view of the in-line patching device of FIG. 4;
fig. 7 is a schematic structural diagram of an in-pipeline joint coating system provided by the present application.
The reference numerals in the drawings are explained as follows:
0-a conveying pipeline to be repaired; 01-engineering vehicle;
1-a pipeline inner repaired mouth spray gun;
11-a powder inlet pipe; 111-catch tray;
12-a powder separating container;
13-a spray head assembly; 131-a spray head; 1311 — sliding bar; 132-a curved hose; 133-a mounting frame; 1331 — a first connection plate; 1332-fixing rods; 1333 — a second connecting plate; 13331 — side plates; 13332-bar guide holes;
2-a pipeline internal joint coating device;
21-powder supplying vehicle; 211-drive means; 212-a powder supply device; 2121, a powder bin; 21211-fluidization baffle; 21212-fluidization bin; 21213-compressed air chamber; 2122, an air pump;
3-a joint coating system in the pipeline;
31-heater.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to realize the anticorrosive treatment of the inside circumferential weld of pipeline, reduce pipeline and leak the risk, this application embodiment provides a repaired mouth spray gun in pipeline, equipment and system. The following first describes a repaired mouth spray gun in the pipeline in detail with reference to the attached drawings.
Referring to fig. 1 and 6, an in-line repaired mouth spray gun 1 provided by the embodiment of the present application includes a powder inlet pipe 11, a powder distribution container 12 and a spray head assembly 13.
The powder inlet pipe 11 can rotate around the axis thereof.
The powder separating container 12 is arranged at the outlet end of the powder inlet pipe 11 and is communicated with the powder inlet pipe 11.
The spray head assembly 13 includes a spray head 131 and an arc hose 132; the spray head 131 is arranged at one side of the powder distributing container 12 and is communicated with the powder distributing container 12 through an arc-shaped hose 132, and the powder outlet direction of the spray head 131 is perpendicular to the axis of the powder inlet pipe 11.
Wherein, the powder inlet pipe 11 has the dual functions of conveying powder and driving the nozzle assembly 13 to rotate.
According to the scheme provided by the embodiment of the application, after the powder enters the powder distributing container 12 through the powder inlet pipe 11 along with the compressed air, centrifugal force is generated when the powder passes through the arc-shaped hose 132 communicated with the powder distributing container 12, so that the powder with the centrifugal force is uniformly sprayed on the internal circumferential weld of the conveying pipeline 0 to be repaired along with the continuous rotation of the spray head assembly 13. Therefore, the scheme can realize the anti-corrosion treatment of the circumferential weld inside the conveying pipeline and reduce the leakage risk of the conveying pipeline.
In some embodiments of the present application, as shown in fig. 2 and 3, the spray head assembly 13 further includes a mounting bracket 133, and the spray head 131 is disposed at one side of the powder container 12 through the mounting bracket 133.
The mounting bracket 133 includes a first connection plate 1331 and a fixing rod 1332; the fixing rod 1332 is movably connected to the powder dispensing container 12 in a first direction, and/or the first connecting plate 1331 is movably connected to the fixing rod 1332 in a first direction, wherein the first direction is a direction perpendicular to the axis of the powder feeding tube 11.
The position of shower nozzle 131 can be adjusted through setting up mounting bracket 133 to this application embodiment, makes it cover more pipe diameter to make in this pipeline joint coating spray gun 1 be applicable to the pipeline 0 that treats the joint coating of different pipe diameters, for example DN400 ~ DN 900's pipeline, realize a tractor serves several purposes.
In the embodiment of the present application, the fixing rod 1332 and/or the first connection plate 1331 may be moved in a plurality of ways. As shown in fig. 1, a plurality of mounting holes may be formed in the fixing rod 1332, and the fixing rod 1332 and the powder container 12 and/or the first connecting plate 1331 may be moved in a first direction by detachably connecting screws to the mounting holes. Of course, other means such as a slide rail may be employed.
In some embodiments of the present application, the number of showerhead assemblies 13, see FIG. 1, is two; two showerhead assemblies 13.
According to the embodiment of the application, the two spray head assemblies 13 which are symmetrical about the axis center of the powder inlet pipe 11 are arranged, so that powder coating can be better distributed, the spraying time is shortened, and the spraying efficiency is improved.
In some embodiments of the present application, referring to fig. 1, mount 133 further includes a second connecting plate 1333.
The second connection plate 1333 is connected to the first connection plate 1331 movably in a direction parallel to the axial direction of the powder inlet pipe 11.
In the embodiment of the present application, the second connection plate 1333 capable of moving in the direction parallel to the axis of the powder inlet pipe 11 is disposed on the first connection plate 1331, so that the position of the nozzle 131 along the axis of the powder inlet pipe 11 can be adjusted according to actual needs. For example, two nozzles 131 may be moved simultaneously, so that the two nozzles 131 are staggered along the axis of the powder inlet pipe 11, thereby increasing the spraying coverage area of the in-pipe repaired mouth spray gun 1.
In some embodiments of the present application, referring to fig. 1, the second connecting plate 1333 comprises a bottom plate and two side plates 13331 disposed at the edge of the bottom plate, and a strip-shaped guiding hole 13332 is opened on the side plate 13331.
The bottom of the nozzle 131 is provided with a sliding rod 1311 which is matched with the strip-shaped guide hole 13332.
In the embodiment of the present application, the second connecting plate 1333 can be moved in the direction parallel to the axis of the powder inlet pipe 11 by forming a strip-shaped guide hole 13332 in the side plate 13331 of the second connecting plate 1333 and providing the sliding rod 1311 at the bottom of the spray head 131.
In some embodiments of the present application, referring to fig. 1, the nozzle 131 is flat and the powder outlet is a strip-shaped gap.
In the embodiment of the application, the spray head 131 is arranged to be flat, and the powder outlet is arranged to be a slender strip-shaped gap, so that the spraying coverage can be effectively enlarged, and the width of the circumferential weld inside the conveying pipeline 0 to be repaired in a covering mode is met.
In addition, as shown in fig. 4, 5 and 6, an embodiment of the present application further provides an in-duct joint coating apparatus 2, which includes a powder supplying vehicle 21 and the in-duct joint coating spray gun 1 described in any of the above embodiments. The powder supplying cart 21 includes a driving device 211 and a powder supplying device 212.
A powder inlet pipe 11 of the repaired mouth spray gun 1 in the pipeline is arranged at the head or tail of the powder supplying vehicle 21 and is in transmission connection with a driving device 211; the inlet end of the powder inlet pipe 11 is connected with the powder supply device 212.
The driving device 211 may be connected to the powder inlet tube 11 of the internal patch spray gun 1 through a transmission mechanism, wherein the transmission mechanism may be a gear transmission mechanism, a belt transmission mechanism, or the like.
When the pipeline internal repaired mouth equipment 2 provided by the embodiment of the application is used, firstly, the equipment is moved to the position near the internal circumferential weld of the conveying pipeline 0 to be repaired, so that the pipeline internal repaired mouth spray gun 1 is aligned to the internal circumferential weld; then the driving device 211 is controlled to drive the powder inlet pipe 11 to rotate, and the in-pipeline repaired mouth spray gun 1 is driven to rotate around the axis of the repaired mouth conveying pipeline 0 at a constant speed. And then, starting the powder supply device 212, enabling the powder supplied by the powder supply device 212 to enter the powder inlet pipe 11 along with the compressed air, finally spraying the powder to the inner girth weld through the spray head 131 of the in-pipeline repaired mouth spray gun 1, and completely covering the whole annular area of the inner girth weld along with the rotation of the in-pipeline repaired mouth spray gun 1, so as to realize the anticorrosion treatment of the inner girth weld.
In some embodiments of the present application, as shown in fig. 6, the powder supply device 212 includes a powder hopper 2121 and an air pump 2122.
A fluidization partition 21211 is arranged in the powder bin 2121, and the fluidization partition 21211 divides the powder bin 2121 into a fluidization bin 21212 and a gas compressing bin 21213; the fluidization bin 21212 is positioned above the air compressing bin 21213; the air pump 2122 is connected to the air compressing chamber 21213.
Among them, the fluidization partition 21211 is a plate having dense minute voids, and has a characteristic that the compressed gas can permeate therethrough but the solid particles cannot pass therethrough.
The air pump 2122 is connected to the air compressing bin 21213 and configured to supply compressed air to the air compressing bin 21213; the fluidization chamber 21212 is used for storing the powder. The powder usually adopts thermosetting coating, and the reality can be selected as required, because epoxy powder has the advantage that the solidification is fast, of high quality, specifically, after epoxy powder contacts the inner wall of waiting to mend mouthful pipeline 0, can melt the levelling in the twinkling of an eye, form even anticorrosive coating, consequently epoxy powder is preferred to be selected for use to the powder.
In the embodiment of the present application, by providing the fluidization partition 21211 in the powder bin 2121, when the internal air pressure of the compressed air bin 21213 exceeds the critical air pressure value of the fluidization partition 21211 capable of passing through the compressed air, the compressed air can penetrate through the fluidization partition 21211 and enter the fluidization bin 21212. Therefore, the fluidization bin 21212 is arranged above the air compressing bin 21213, so that compressed air can continuously and uniformly enter the powder bin 2121 to fully fluidize powder, so that the powder flows, the spring phenomenon is prevented, the powder can uniformly flow out, and the spraying quality is improved.
In some embodiments of the present application, a baffle disc 111 is also included. The baffle disc 111 is arranged at one end of the powder inlet pipe 11 close to the powder supplying vehicle 21; the baffle disc 111 is arranged coaxially with the powder inlet pipe 11.
In the embodiment of the present application, the blocking disc 111 is disposed on the powder inlet pipe 11 for blocking, so as to prevent the sprayed powder from adhering to the powder supplying cart 21.
Finally, as shown in fig. 7, the embodiment of the present application further provides an in-pipe joint coating system 3, which includes a heater 31 and any one of the above-mentioned in-pipe joint coating apparatuses 2.
The heater 31 is disposed outside the pipe 0 to be repaired to heat the girth weld of the pipe 0 to be repaired.
It should be noted that, since the powder is generally a thermosetting coating material such as epoxy powder, the transfer pipe 0 to be repaired needs to be heated by an external heating device before the coating.
The embodiment of the application can firstly heat the conveying pipeline 0 to be repaired before the operation of the repairing spray gun 1 in the pipeline by arranging the heater 31 at the outer side of the conveying pipeline 0 to be repaired. Wherein the heater 31 may be an open heater.
As shown in fig. 7, the engineering truck 01 can be used to carry a generator and an intermediate frequency power supply, and the heater 31 is installed outside the conveying pipe 0 to be repaired and aligned with the inner circumferential weld. When the generator and the intermediate frequency power supply are started to electrify the heater 31, the welding seam can be heated, when the heating temperature is up to the preset temperature, such as 240-260 ℃, the heating can be stopped, and the intermediate frequency power supply is controlled to start the heat preservation function. And then, controlling the pipeline internal joint coating equipment 2 to perform internal joint coating operation, after the internal joint coating operation is finished, controlling the pipeline internal joint coating equipment 2 to withdraw from the steel pipe and controlling the medium-frequency power supply to finish the heat preservation function, and removing the heater 31 from the pipeline 0 to be subjected to joint coating operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a repaired mouth spray gun in pipeline which characterized in that includes:
the powder inlet pipe (11), the powder inlet pipe (11) can rotate around the axis thereof;
the powder distributing container (12) is arranged at the outlet end of the powder inlet pipe (11) and communicated with the powder inlet pipe (11);
a spray head assembly (13), the spray head assembly (13) comprising a spray head (131) and an arcuate hose (132); the spray head (131) is arranged on one side of the powder distribution container (12) and is communicated with the powder distribution container (12) through the arc-shaped hose (132), and the powder outlet direction of the spray head (131) is perpendicular to the axis of the powder inlet pipe (11).
2. The in-line patching spray gun of claim 1, wherein the spray head assembly (13) further comprises a mounting bracket (133), the spray head (131) being disposed at one side of the powder distribution container (12) through the mounting bracket (133);
the mounting bracket (133) includes a first connection plate (1331) and a fixing rod (1332); the fixing rod (1332) is movably connected with the powder distributing container (12) along a first direction, and/or the first connecting plate (1331) is movably connected with the fixing rod (1332) along the first direction, wherein the first direction is a direction perpendicular to the axis of the powder inlet pipe (11).
3. The in-pipe patching lance of claim 2, wherein the number of the spray head assemblies (13) is two; the two spray head assemblies (13) are centrosymmetric about the axis of the powder inlet pipe (11).
4. The in-pipe patching spray gun of claim 3, wherein the mounting bracket (133) further includes a second connecting plate (1333);
the second connecting plate (1333) is movably connected with the first connecting plate (1331) along the direction parallel to the axial line of the powder inlet pipe (11).
5. The in-pipe patching spray gun of claim 4, wherein the second connecting plate (1333) comprises a bottom plate and two side plates (13331) arranged at the edges of the bottom plate, and the side plates (13331) are provided with strip-shaped guide holes (13332);
the bottom of the spray head (131) is provided with a sliding rod (1311) matched with the strip-shaped guide hole (13332).
6. The in-pipe patching spray gun of any of claims 1 to 5, wherein the spray head (131) is flat and the powder outlet is a strip-shaped gap.
7. An apparatus for repairing a joint in a pipe, comprising:
the powder supplying vehicle (21), wherein the powder supplying vehicle (21) comprises a driving device (211) and a powder supplying device (212);
the in-pipe repaired mouth spray gun (1) as claimed in any one of claims 1 to 6, wherein the powder inlet pipe (11) of the in-pipe repaired mouth spray gun (1) is arranged at the head or tail of the powder supplying vehicle (21) and is in transmission connection with the driving device (211); the inlet end of the powder inlet pipe (11) is connected with the powder supply device (212).
8. The in-line patching device of claim 7, wherein the powder supply device (212) comprises a powder bin (2121) and an air pump (2122);
a fluidization clapboard (21211) is arranged in the powder bin (2121), and the fluidization clapboard (21211) divides the powder bin (2121) into a fluidization bin (21212) and an air compression bin (21213);
the fluidization bin (21212) is located above the compressed gas bin (21213); the air pump (2122) is connected with the air pressing bin (21213).
9. The in-pipe patching device of claim 7 or 8, further comprising a baffle disc (111);
the baffle disc (111) is arranged at one end of the powder inlet pipe (11) close to the powder supply vehicle (21); the baffle disc (111) and the powder inlet pipe (11) are coaxially arranged.
10. An in-pipe joint coating system, comprising:
-an in-pipe patching device (2) as claimed in any of claims 7 to 9;
the heater (31) is arranged on the outer side of the conveying pipeline (0) to be repaired, and is used for heating the circumferential welding seam of the conveying pipeline (0) to be repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987251.XU CN217796896U (en) | 2022-07-29 | 2022-07-29 | Repaired mouth spray gun, equipment and system in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987251.XU CN217796896U (en) | 2022-07-29 | 2022-07-29 | Repaired mouth spray gun, equipment and system in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217796896U true CN217796896U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221987251.XU Active CN217796896U (en) | 2022-07-29 | 2022-07-29 | Repaired mouth spray gun, equipment and system in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217796896U (en) |
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2022
- 2022-07-29 CN CN202221987251.XU patent/CN217796896U/en active Active
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