CN104786159B - A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism - Google Patents
A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism Download PDFInfo
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- CN104786159B CN104786159B CN201510209601.8A CN201510209601A CN104786159B CN 104786159 B CN104786159 B CN 104786159B CN 201510209601 A CN201510209601 A CN 201510209601A CN 104786159 B CN104786159 B CN 104786159B
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- Prior art keywords
- poly
- methyl methacrylate
- plate
- semi
- pipe
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
A kind of formation I shape semicircular ring double-decker after the second poly (methyl methacrylate) plate connection of narrow gap deep hole pipe fitting dust-free blasting mechanism, the first poly (methyl methacrylate) plate including two semi-annular shapes and two semi-annular shapes；Roller is provided with by spring in the installing hole at the interior annular position of each end of I shape semicircular ring double-decker, blast tube passes through the sand-blasting gun installing hole of the second poly (methyl methacrylate) plate of first poly (methyl methacrylate) plate and a semi-annular shape of a semi-annular shape and is located in blast tube steel sleeve pipe, sweep-up pipe passes through the sweep-up pipe installing hole of the first poly (methyl methacrylate) plate of another semi-annular shape and the second poly (methyl methacrylate) plate of another semi-annular shape and is located in sweep-up pipe steel sleeve pipe, band elbow blast nozzle is connected to blast tube one end by nipple, the blast tube other end connects sandblasting pipe joint, sweep-up pipe one end connects vacuum cleaner hose joint；Solve the problems, such as that existing abrasive blast equipment cannot carry out deep hole, narrow gap, regional area, dust-free blasting using apparatus of the present invention.
Description
Technical field
The invention belongs to field of surface engineering technique, and in particular to a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism.
Background technology
Power system device exist substantial amounts of through walls through pipe fitting, when there is Korrosionsmedium, such as Cl in atmospheric environment-,
Its pipeline and internal weld seams are often corroded, and under shock effect, this chemical attack will develop into stress corrosion fatigue, sternly
Cause weld cracking, vibrations aggravation, harm piece safety in the case of weight.This phenomenon is especially prominent in nuclear power station.Pacify in unit
During dress, spray painting protection is carried out by factory, Assembling, after long service, surfacecti proteon enamelled coating comes off, and occurs rotten
Erosion.Protect different from spray painting during units' installation, corrosion layer must be removed by protected working now first, and ensure that surface is clear
Cleanliness and roughness reach standard setting, then anticorrosion with painting erosion resisting coating.After installation, gap is narrow, and minimum clearance only has
30mm, and through pipe fitting depth up to 1100mm, in this case, traditional derusting method it cannot be guaranteed that rust cleaning after table to be sprayed
The cleannes and roughness in face.
Generally there are two methods of mechanical grinding and traditional sandblasting for the removal of corrosion layer at present.Mechanical rubbing method is adopted
Corrosion resistant coating polishing is removed with electronic or Pneumatic angle grinder, surface smoothness that this method is polished, uniformity, cleannes
Poor, the removal of surface quality requirements higher part part corrosion layer is not suitable for, is less applied to narrow gap, deep hole, little
The removal of the component corrosion layer of regional characteristics.
Traditional blasting method the sand grains of high rigidity is ejected into by surface of the work using sand-blasting machine and compressed air so that
The method that corrosion layer comes off.Generally can be sprayed using sand blasting unit is reclaimed certainly for the place for having dust concentration to limit requirement
Sand, but from sand blasting unit being reclaimed due to being limited by own vol and structure, be commonly available to more smooth, sand blasted area larger
Part sandblasting.And 1100mm is reached for depth, gap only only have 30-150mm components interior sandblasting work, this from
Retracting device is unavailable.
Sandblasting quality for realizing in deep hole, narrow gap is up to state standards requirement, and meets dust-free blasting requirement, needs
A kind of special sand blasting unit.
Content of the invention
For solving the above problems, present invention aim at a kind of narrow gap deep hole pipe fitting inner wall dust-free blasting mechanism is provided,
Solve the problems, such as that existing abrasive blast equipment cannot carry out deep hole, narrow gap, regional area, dust-free blasting.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism, including the first poly (methyl methacrylate) plate 7 and two of two semi-annular shapes
Second poly (methyl methacrylate) plate 10 of individual semi-annular shape, the first poly (methyl methacrylate) plate 7 of one of semi-annular shape and a semi-annular shape
The second poly (methyl methacrylate) plate 10 with bolts by blast tube steel sleeve pipe 8, first organic glass of another semi-annular shape
Second poly (methyl methacrylate) plate 10 of glass plate 7 and another semi-annular shape is with bolts by sweep-up pipe steel sleeve pipe 14, is formed
Two semicircular ring double-deckers, during use, it is double that two semicircular ring double-deckers form I shape semicircular ring using the connection of hinge 22
Rotating fields；Roller is provided with by spring 25 in the installing hole at the interior annular position of each end of I shape semicircular ring double-decker
23, blast tube 6 is through the second poly (methyl methacrylate) plate 10 of the first poly (methyl methacrylate) plate 7 of a semi-annular shape and a semi-annular shape
Sand-blasting gun installing hole 16 is simultaneously fixed using blast tube fixing screws 9 in blast tube steel sleeve pipe 8, and sweep-up pipe 15 passes through another
The sweep-up pipe installing hole 21 of the second poly (methyl methacrylate) plate 10 of first poly (methyl methacrylate) plate 7 and another semi-annular shape of individual semi-annular shape
And fixed using sweep-up pipe fixing screws 13 in sweep-up pipe steel sleeve pipe 14, band elbow blast nozzle 3 is connected by nipple 4
6 one end of blast tube is connected on, 6 other end of blast tube connects sandblasting pipe joint 11,15 one end of sweep-up pipe connects vacuum cleaner hose joint 12.
Described device carries out dust suction process by sweep-up pipe while sandblasting is realized.
First poly (methyl methacrylate) plate 7 of described two semi-annular shapes is away from one end of the second poly (methyl methacrylate) plate 10 of semi-annular shape
It is provided with rubber blanket 24.
The thickness of the rubber blanket 24 is 3-5mm.
The thickness of the second poly (methyl methacrylate) plate 10 of first poly (methyl methacrylate) plate 7 and two semi-annular shapes of described two semi-annular shapes
Spend for 10-20mm.
A diameter of 10-15mm of the roller 23, described 25 compressible stroke is 5-10mm.
Using by being installed on butterfly nut 19 and the slip-knot spiral shell of I shape semicircular ring double-decker one end during described device
Bolt 18 is fixed, and is installed in intermediate conduit, can pass through 19 adjusting elasticity of butterfly nut.
Compared to the prior art, the invention has the advantages that：
1) dust sealing is carried out by I shape semicircular ring double-decker, I shape semicircular ring double-decker by hinge and
Butterfly nut is fixed, easy for installation, fast.Achieve the sandblasting of deep hole narrow gap pipe fitting, spraying process no dust pollution.
2) organic plates are employed as apparatus main body material, make observable in sandblasting procedures treat sandblasting position situation and
Whether sandblasting puts in place, prevents from causing by mistake sandblasting because cannot observe.
3) the smooth movement of spray gun in sandblasting procedures is realized by bottom roller, prevents movement from freely not causing local sandblasting strong
Height is spent, causes parts metals body to penetrate, prevent central tube is caused to damage.
4) sand grains and dust effusion are avoided by rubber blanket and damages roller.
Description of the drawings
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.
Specific embodiment
With reference to the accompanying drawings and detailed description 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 and using process it is：First by the first of semi-annular shape
Poly (methyl methacrylate) plate 7 passes through blast tube steel sleeve pipe 8 and sweep-up pipe steel set respectively with the second poly (methyl methacrylate) plate 10 of semi-annular shape
Pipe 14 connects, and is bolted during connection, forms two semicircular ring double-deckers；During use, two semicircular ring double-deckers
I shape semicircular ring double-decker is formed using the connection of hinge 22.Then 4 springs 25 and 4 rollers 23 are installed on by 90 degree
It is pre-machined in the installing hole at the interior annular position of each end of I shape semicircular ring double-decker, rubber blanket 24 is installed on
First poly (methyl methacrylate) plate 7 of two semi-annular shapes is away from one end of the second poly (methyl methacrylate) plate 10 of semi-annular shape.Knot by connection
Structure is installed on the outer wall of wall feed-through pipeline 5, is pre-fixed by accommodating frock 20, slip-knot bolt 18 and butterfly nut 19, now
Fixing should easily, and whole device is axially movable in the outer wall of wall feed-through pipeline 5.Blast tube 6 and sweep-up pipe 15 are inserted spray respectively
In sand rifle installing hole 16, sweep-up pipe installing hole 21 and by being respectively arranged in blast tube steel sleeve pipe 8 and sweep-up pipe steel sleeve pipe
Blast tube fixing screws 9 and sweep-up pipe fixing screws 13 on 14 are fixed, and are then led to blast tube leading portion with band elbow blast nozzle 3
Cross nipple 4 to connect.Device intact for above-mentioned connection is pushed into be embedded in inside body of wall through 2 end face of pipe fitting, then will
Butterfly nut 19 tightens fixation, finally the sandblasting pipe joint 11 of whole device is connected with sand-blasting machine pipeline, vacuum cleaner hose is connect
12 are connected with pipeline of dust catcher.Open gas valve and dust catcher package unit power supply can be realized being located at for corrosion location 1
Deep hole narrow gap pipeline internal corrosion layer dust-free blasting.
Claims (5)
1. a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism, it is characterised in that：First organic glass including two semi-annular shapes
Second poly (methyl methacrylate) plate (10) of glass plate (7) and two semi-annular shapes, first poly (methyl methacrylate) plate (7) of one of semi-annular shape
With bolts by blast tube steel sleeve pipe (8) with second poly (methyl methacrylate) plate (10) of a semi-annular shape, another half
Second poly (methyl methacrylate) plate (10) of circular the first poly (methyl methacrylate) plate (7) and another semi-annular shape passes through sweep-up pipe steel set
Pipe (14) is with bolts, forms two semicircular ring double-deckers, and during use, two semicircular ring double-deckers adopt hinge
(22) connection forms I shape semicircular ring double-decker；The peace at the interior annular position of each end of I shape semicircular ring double-decker
Dress is provided with roller (23) by spring (25) in hole, and blast tube (6) is through first poly (methyl methacrylate) plate (7) of a semi-annular shape
With the sand-blasting gun installing hole (16) of second poly (methyl methacrylate) plate (10) of a semi-annular shape and interior positioned at blast tube steel sleeve pipe (8)
Fixing using blast tube fixing screws (9), sweep-up pipe (15) is through first poly (methyl methacrylate) plate (7) and separately of another semi-annular shape
The sweep-up pipe installing hole (21) of second poly (methyl methacrylate) plate (10) of one semi-annular shape is simultaneously located in sweep-up pipe steel sleeve pipe (14)
Fixing using sweep-up pipe fixing screws (13), band elbow blast nozzle (3) is connected to blast tube (6) one end by nipple (4),
Blast tube (6) other end connection sandblasting pipe joint (11), sweep-up pipe (15) one end connection vacuum cleaner hose joint (12)；The mechanism
Dust suction process is carried out by sweep-up pipe while sandblasting is realized；First poly (methyl methacrylate) plate (7) of described two semi-annular shapes is remote
Rubber blanket (24) is provided with from one end of second poly (methyl methacrylate) plate (10) of semi-annular shape.
2. a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism according to claim 1, it is characterised in that：The rubber blanket
(24) thickness is 3-5mm.
3. a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism according to claim 1, it is characterised in that：Described two half
The thickness of second poly (methyl methacrylate) plate (10) of circular the first poly (methyl methacrylate) plate (7) and two semi-annular shapes is 10-20mm.
4. a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism according to claim 1, it is characterised in that：The roller
(23) a diameter of 10-15mm, the compressible stroke of spring (25) is 5-10mm.
5. a kind of narrow gap deep hole pipe fitting dust-free blasting mechanism according to claim 1, it is characterised in that：Using the machine
Butterfly nut (19) and slip-knot bolt (18) during structure by being installed on I shape semicircular ring double-decker one end is fixing, and installs
In intermediate conduit, butterfly nut (19) adjusting elasticity can 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 CN104786159A (en) | 2015-07-22 |
| CN104786159B true CN104786159B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209601.8A Active CN104786159B (en) | 2015-04-28 | 2015-04-28 | A kind of narrow gap deep hole pipe fitting dust-free blasting mechanism |
Country Status (1)
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| CN (1) | CN104786159B (en) |
Families Citing this family (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 |
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| Publication number | Publication date |
|---|---|
| CN104786159A (en) | 2015-07-22 |
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