CN104786159A - Dust-proof sand spraying mechanism of narrow-gap and deep-hole pipe fitting - Google Patents
Dust-proof sand spraying mechanism of narrow-gap and deep-hole pipe fitting Download PDFInfo
- Publication number
- CN104786159A CN104786159A CN201510209601.8A CN201510209601A CN104786159A CN 104786159 A CN104786159 A CN 104786159A CN 201510209601 A CN201510209601 A CN 201510209601A CN 104786159 A CN104786159 A CN 104786159A
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- CN
- China
- Prior art keywords
- semi
- poly
- annular
- methyl methacrylate
- plate
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/003—Removing abrasive powder out of the blasting machine
Abstract
The invention provides a dust-proof sand spraying mechanism of a narrow-gap and deep-hole pipe fitting. The dust-proof sand spraying mechanism comprises two semi-annular first organic glass plates and two semi-annular second organic glass plates, wherein the two semi-annular first organic glass plates and the two semi-annular second organic glass plates are connected to from an I-shaped semi-annular double-layered structure; a rolling wheel is mounted in a mounting hole at an inner annular part of each end part of the I-shaped semi-annular double-layered structure; a sand spraying pipe penetrates through sand spraying gun mounting holes of one semi-annular first organic glass plate and one semi-annular second organic glass plate and is located in a steel-made sleeve of the sand spraying pipe; a dust suction pipe penetrates through dust suction pipe mounting holes of the other semi-annular first organic glass plate and the other semi-annular second organic glass plate and is located in a steel-made sleeve of the dust suction pipe; a sand spraying nozzle with an elbow is connected with one end of the sand spraying pipe through a thread connector and the other end of the sand spraying pipe is connected with a sand spraying pipe connector; and one end of the dust suction pipe is connected with a dust suction pipe connector. With the adoption of the device, the problems that existing sand spraying equipment cannot carry out deep-hole, narrow-gap, local region and dust-proof sand spraying are solved.
Description
Technical field
The invention belongs to field of surface engineering technique, be specifically related to a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism.
Background technology
Power system device exists and a large amount of through wallsly runs through pipe fitting, when there is Korrosionsmedium in atmospheric environment, as Cl
-, its pipeline and internal weld seams are often corroded, and under shock effect, this chemical attack will develop into stress corrosion fatigue, cause weld cracking under serious conditions, vibrations aggravation, harm piece safety.This phenomenon is particularly outstanding at nuclear power station.In units' installation process, carry out protection of spraying paint, Assembling by factory, after long service, surfacecti proteon enamelled coating comes off, and corrodes.Be different from the protection of spraying paint during units' installation, first corrosion layer must be removed by protected working now, and ensures that surface cleanness and roughness reach standard gauge definite value, then anticorrosion with painting erosion resisting coating.After installing, gap is narrow, and minimum clearance only has 30mm, and runs through the pipe fitting degree of depth and can reach 1100mm, in this case, and the cleannes on surface to be sprayed and roughness after traditional derusting method can not ensure to eliminate rust.
Removal at present for corrosion layer has mechanical grinding and traditional sandblasting two kinds of methods usually.Namely mechanical rubbing method adopts electronic or Pneumatic angle grinder corrosion resistant coating polishing to be removed, the surface smoothness that this method polish, uniformity, cleannes are poor, and be not suitable for the removal of surface quality requirements higher part part corrosion layer, be not more suitable for the removal of component corrosion layer with narrow gap, deep hole, zonule feature.
Namely tradition blasting method adopts sand-blasting machine and compressed air the sand grains of high rigidity to be ejected into surface of the work thus the method that corrosion layer is come off.Limiting for there being dust concentration the place required can adopt recovery sand blasting unit certainly to carry out sandblasting usually, but from reclaiming sand blasting unit owing to being subject to the restriction of own vol and structure, is usually applicable to more smooth, that sand blasted area is larger parts sandblasting.And 1100mm is reached for the degree of depth, gap only only has the components interior sandblasting work of 30-150mm, this unavailable from retracting device.
For the sandblasting quality realized in deep hole, narrow gap is up to state standards requirement, and meet dust-free blasting requirement, need a kind of special sand blasting unit.
Summary of the invention
For solving the problem, the object of the invention is to provide a kind of narrow gap deep hole pipe fitting inner wall dust-free blasting mechanism, solves the problem that existing abrasive blast equipment cannot carry out deep hole, narrow gap, regional area, dust-free blasting.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism, comprise the first poly (methyl methacrylate) plate 7 of two semi-annular shapes and the second poly (methyl methacrylate) plate 10 of two semi-annular shapes, it is with bolts that first poly (methyl methacrylate) plate 7 of one of them semi-annular shape and the second poly (methyl methacrylate) plate 10 of a semi-annular shape pass through blast tube steel sleeve pipe 8, it is with bolts that first poly (methyl methacrylate) plate 7 of another semi-annular shape and the second poly (methyl methacrylate) plate 10 of another semi-annular shape pass through sweep-up pipe steel sleeve pipe 14, form two semicircular ring double-deckers, during use, two semicircular ring double-deckers adopt hinge 22 to be connected to form I shape semicircular ring double-decker, by spring 25, roller 23 is installed in the installing hole of the interior annular portion position of each end of I shape semicircular ring double-decker, blast tube 6 through the first poly (methyl methacrylate) plate 7 of a semi-annular shape and the second poly (methyl methacrylate) plate 10 of a semi-annular shape sand-blasting gun installing hole 16 and be positioned at blast tube steel sleeve pipe 8 and adopt blast tube hold-down screw 9 fixing, sweep-up pipe 15 through the first poly (methyl methacrylate) plate 7 of another semi-annular shape and the second poly (methyl methacrylate) plate 10 of another semi-annular shape sweep-up pipe installing hole 21 and be positioned at sweep-up pipe steel sleeve pipe 14 and adopt sweep-up pipe hold-down screw 13 fixing, band elbow blast nozzle 3 is connected to blast tube 6 one end by nipple 4, blast tube 6 other end connects blast tube joint 11, sweep-up pipe 15 one end connects vacuum cleaner hose joint 12.
Described device carries out dust suction process by sweep-up pipe while realizing sandblasting.
First poly (methyl methacrylate) plate 7 of described two semi-annular shapes is provided with rubber blanket 24 away from one end of the second poly (methyl methacrylate) plate 10 of semi-annular shape.
The thickness of described rubber blanket 24 is 3-5mm.
The thickness of the first poly (methyl methacrylate) plate 7 of described two semi-annular shapes and the second poly (methyl methacrylate) plate 10 of two semi-annular shapes is 10-20mm.
The diameter of described roller 23 is 10-15mm, and the compressible stroke of described 25 is 5-10mm.
Use during described device and fixed by the butterfly nut 19 and slip-knot bolt 18 that are installed on I shape semicircular ring double-decker one end, and be installed in intermediate conduit, can butterfly nut 19 adjusting elasticity be passed through.
Compared to the prior art, tool of the present invention has the following advantages:
1) carry out dust sealing by I shape semicircular ring double-decker, I shape semicircular ring double-decker is fixed by hinge and butterfly nut, easy for installation, fast.Achieve the sandblasting of deep hole narrow gap pipe fitting, spraying process no dust pollution.
2) have employed organic plates as apparatus main body material, make observable in sandblasting procedures treat the situation at sandblasting position and whether sandblasting puts in place, prevent from causing sandblasting by mistake because observing.
3) realized the smooth and easy movement of spray gun in sandblasting procedures by bottom roller, prevent the mobile local blasting strength that freely do not cause too high, cause parts metals body to penetrate, prevent from causing damage to central tube.
4) avoid sand grains and dust effusion by rubber blanket and damage roller.
Accompanying drawing explanation
Fig. 1 is sand blasting unit integral installation schematic diagram of the present invention.
Fig. 2 is sand blasting unit A direction view of the present invention.
Fig. 3 is sand blasting unit roller of the present invention and sealing position close-up schematic view.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, the installation of apparatus of the present invention with use procedure is: be first connected respectively by blast tube steel sleeve pipe 8 and sweep-up pipe steel sleeve pipe 14 with the second poly (methyl methacrylate) plate 10 of semi-annular shape by the first poly (methyl methacrylate) plate 7 of semi-annular shape, be bolted during connection, form two semicircular ring double-deckers; During use, two semicircular ring double-deckers adopt hinge 22 to be connected to form I shape semicircular ring double-decker.Then 4 springs 25 and 4 rollers 23 are installed in the installing hole being machined in annular portion position in each end of I shape semicircular ring double-decker in advance by 90 degree, rubber blanket 24 are installed on the first poly (methyl methacrylate) plate 7 one end away from the second poly (methyl methacrylate) plate 10 of semi-annular shape of two semi-annular shapes.By the structure installment of connection in the outer wall of wall feed-through pipeline 5, pre-fix by accommodating frock 20, slip-knot bolt 18 and butterfly nut 19, now fixing should be light, and whole device can move axially at the outer wall of wall feed-through pipeline 5.Blast tube 6 and sweep-up pipe 15 to be inserted respectively in sand-blasting gun installing hole 16, sweep-up pipe installing hole 21 and by being installed on blast tube hold-down screw 9 on blast tube steel sleeve pipe 8 and sweep-up pipe steel sleeve pipe 14 respectively and sweep-up pipe hold-down screw 13 is fixed, then blast tube leading portion to be connected by nipple 4 with being with elbow blast nozzle 3.Device intact for above-mentioned connection is pushed into be embedded in body of wall inside run through pipe fitting 2 end face, then butterfly nut 19 is tightened fixing, finally the blast tube joint 11 of whole device is connected with sand-blasting machine pipeline, vacuum cleaner hose joint 12 is connected with pipeline of dust catcher.Open gas valve and dust catcher package unit power supply to realize being positioned at deep hole narrow gap pipeline internal corrosion layer dust-free blasting for corrosion location 1.
Claims (7)
1. one kind narrow gap deep hole pipe fitting dust-free blasting mechanism, it is characterized in that: comprise first poly (methyl methacrylate) plate (7) of two semi-annular shapes and second poly (methyl methacrylate) plate (10) of two semi-annular shapes, first poly (methyl methacrylate) plate (7) of one of them semi-annular shape and second poly (methyl methacrylate) plate (10) of a semi-annular shape with bolts by blast tube steel sleeve pipe (8), first poly (methyl methacrylate) plate (7) of another semi-annular shape and second poly (methyl methacrylate) plate (10) of another semi-annular shape with bolts by sweep-up pipe steel sleeve pipe (14), form two semicircular ring double-deckers, during use, two semicircular ring double-deckers adopt hinge (22) to be connected to form I shape semicircular ring double-decker, by spring (25), roller (23) is installed in the installing hole of the interior annular portion position of each end of I shape semicircular ring double-decker, blast tube (6) through first poly (methyl methacrylate) plate (7) of a semi-annular shape and second poly (methyl methacrylate) plate (10) of a semi-annular shape sand-blasting gun installing hole (16) and be positioned at blast tube steel sleeve pipe (8) and adopt blast tube hold-down screw (9) to fix, sweep-up pipe (15) through first poly (methyl methacrylate) plate (7) of another semi-annular shape and second poly (methyl methacrylate) plate (10) of another semi-annular shape sweep-up pipe installing hole (21) and be positioned at sweep-up pipe steel sleeve pipe (14) and adopt sweep-up pipe hold-down screw (13) to fix, band elbow blast nozzle (3) is connected to blast tube (6) one end by nipple (4), blast tube (6) other end connects blast tube joint (11), sweep-up pipe (15) one end connects vacuum cleaner hose joint (12).
2. one according to claim 1 narrow gap deep hole pipe fitting dust-free blasting mechanism, is characterized in that: described device carries out dust suction process by sweep-up pipe while realizing sandblasting.
3. one according to claim 1 narrow gap deep hole pipe fitting dust-free blasting mechanism, is characterized in that: first poly (methyl methacrylate) plate (7) of described two semi-annular shapes is provided with rubber blanket (24) away from one end of second poly (methyl methacrylate) plate (10) of semi-annular shape.
4. one according to claim 3 narrow gap deep hole pipe fitting dust-free blasting mechanism, is characterized in that: the thickness of described rubber blanket (24) is 3-5mm.
5. one according to claim 1 narrow gap deep hole pipe fitting dust-free blasting mechanism, is characterized in that: the thickness of first poly (methyl methacrylate) plate (7) of described two semi-annular shapes and second poly (methyl methacrylate) plate (10) of two semi-annular shapes is 10-20mm.
6. one according to claim 1 narrow gap deep hole pipe fitting dust-free blasting mechanism, is characterized in that: the diameter of described roller (23) is 10-15mm, and the compressible stroke of described (25) is 5-10mm.
7. one according to claim 1 narrow gap deep hole pipe fitting dust-free blasting mechanism, it is characterized in that: use during described device and fixed by the butterfly nut (19) and slip-knot bolt (18) that are installed on I shape semicircular ring double-decker one end, and be installed in intermediate conduit, can butterfly nut (19) adjusting elasticity be passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209601.8A CN104786159B (en) | 2015-04-28 | 2015-04-28 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209601.8A CN104786159B (en) | 2015-04-28 | 2015-04-28 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104786159A true CN104786159A (en) | 2015-07-22 |
| CN104786159B CN104786159B (en) | 2017-03-08 |
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| CN201510209601.8A Active CN104786159B (en) | 2015-04-28 | 2015-04-28 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
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| CN (1) | CN104786159B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214629A (en) * | 2017-08-02 | 2017-09-29 | 马怡鑫 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
| CN110253450A (en) * | 2019-07-04 | 2019-09-20 | 中海油（天津）管道工程技术有限公司 | A kind of standpipe annular space inner surface cleaning device being mounted on offshore platform in use |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076467A (en) * | 1996-07-12 | 1998-03-24 | Mitsubishi Heavy Ind Ltd | Liquid jet peening method for tube inner surface, and nozzle used in the method |
| CN201613508U (en) * | 2009-12-19 | 2010-10-27 | 成都飞机工业（集团）有限责任公司 | Shot-peening strengthening device for surface of small inner hole |
| CN202878129U (en) * | 2012-11-13 | 2013-04-17 | 牡丹江市万通微孔技术开发有限责任公司 | Sandblast cleaning device for inner wall of small-bore metallic conduit |
| CN202895004U (en) * | 2012-11-12 | 2013-04-24 | 昆山开信机械制造有限公司 | Small-hole shot-blasting automatic device |
| CN203712518U (en) * | 2014-02-25 | 2014-07-16 | 天津市管道工程集团有限公司 | Sand blasting machine in tubule |
| CN204658208U (en) * | 2015-04-28 | 2015-09-23 | 华能国际电力股份有限公司 | A kind of narrow gap deep hole pipe fitting dust-free blasting device |
-
2015
- 2015-04-28 CN CN201510209601.8A patent/CN104786159B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076467A (en) * | 1996-07-12 | 1998-03-24 | Mitsubishi Heavy Ind Ltd | Liquid jet peening method for tube inner surface, and nozzle used in the method |
| CN201613508U (en) * | 2009-12-19 | 2010-10-27 | 成都飞机工业（集团）有限责任公司 | Shot-peening strengthening device for surface of small inner hole |
| CN202895004U (en) * | 2012-11-12 | 2013-04-24 | 昆山开信机械制造有限公司 | Small-hole shot-blasting automatic device |
| CN202878129U (en) * | 2012-11-13 | 2013-04-17 | 牡丹江市万通微孔技术开发有限责任公司 | Sandblast cleaning device for inner wall of small-bore metallic conduit |
| CN203712518U (en) * | 2014-02-25 | 2014-07-16 | 天津市管道工程集团有限公司 | Sand blasting machine in tubule |
| CN204658208U (en) * | 2015-04-28 | 2015-09-23 | 华能国际电力股份有限公司 | A kind of narrow gap deep hole pipe fitting dust-free blasting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214629A (en) * | 2017-08-02 | 2017-09-29 | 马怡鑫 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
| CN110253450A (en) * | 2019-07-04 | 2019-09-20 | 中海油（天津）管道工程技术有限公司 | A kind of standpipe annular space inner surface cleaning device being mounted on offshore platform in use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104786159B (en) | 2017-03-08 |
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