CN105382458A - Membrane and steam ball valve seat assembly welding tool and assembly welding technology thereof - Google Patents
Membrane and steam ball valve seat assembly welding tool and assembly welding technology thereof Download PDFInfo
- Publication number
- CN105382458A CN105382458A CN201510825307.XA CN201510825307A CN105382458A CN 105382458 A CN105382458 A CN 105382458A CN 201510825307 A CN201510825307 A CN 201510825307A CN 105382458 A CN105382458 A CN 105382458A
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- China
- Prior art keywords
- valve seat
- plugging plate
- diaphragm
- left end
- inner chamber
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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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Safety Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a membrane and steam ball valve seat assembly welding tool and an assembly welding technology of the tool. The problems that the surface of a membrane is prone to damage in the machining process and the combination precision of assembly welding of a membrane and a valve seat is poor are solved. The tool is characterized in that a valve seat (2) is arranged in a tube body (1), an annular membrane (3) is arranged on the outer side of a groove (8), a valve body inner cavity blocking board (6) is arranged at the left end of an inner cavity of the valve seat (2), a tube body left-end sealing blocking board (4) is mounted on a tube body blocking board mounting base (10) through a fixing bolt (12), the tube body left-end sealing blocking board (4) is provided with a high-pressure water filling nozzle (5), a valve body sealing ring (9) is arranged between the valve body inner cavity blocking board (6) and the inner cavity of the valve seat (2), and a membrane protrusion hydraulic pressure cavity (7) is formed among the valve body inner cavity blocking board (6), the tube body left-end sealing blocking board (4) and the inner cavity of the valve seat (2). By means of the membrane and steam ball valve seat assembly welding tool and the assembly welding technology of the tool, the combination precision and the welding precision of the membrane and the valve seat are improved greatly, and the processing and assembling period is shortened.
Description
Technical field
The present invention relates to the Combination Welding frock of a kind of film for sealing sheet and steam ball valve valve seat, particularly a kind of by compressing for the projection on film for sealing sheet and with the frock of the Combination Welding of steam ball valve valve seat and combined welding method thereof.
Background technology
In nuclear power field, steam ball valve mainly plays a part block fast or connect medium, valve seat and valve ball is provided with in steam ball valve, between valve seat and body cavity, usually adopt diaphragm to seal, diaphragm is the annular sheet metal of metal hollow outer rim projection, in valve ball rotation process, by the gap between extruding diaphragm outer rim raised seals valve seat and body cavity.Conventional method is first by making mould and adopting process for stamping machined diaphragm and projection, is then welded on valve seat by diaphragm, is finally arranged in valve body by group welding piece.In the process of processing, adopt man-hour hydraulic press compressing because diaphragm adds, when suppressing distortion, diaphragm workpiece is subject to the extruding metal of hydraulic press and mould, and surface of the work sustains damage, and is normally repaired membrane surface by the grinding in later stage, be beneficial to the sealing in later stage, there is the processing and fabricating cycle long, assembly welding low precision, product quality such as cannot to ensure at the problem.
Summary of the invention
The invention provides a kind of diaphragm and steam ball valve valve seat assembly welding frock and assembly welding technique thereof, solve the easy deface of diaphragm work in-process and diaphragm and valve seat assembly welding and exist and combine low precision and process-cycle long technical problem.
The present invention solves above technical problem by the following technical programs:
A kind of diaphragm and steam ball valve valve seat assembly welding frock, comprise body, valve seat is provided with in body, groove is formed between the left outside end face of valve seat and the inner chamber of body, ring film is had in the arranged outside of groove, the inner chamber left end of valve seat is provided with body cavity plugging plate, body plugging plate mount pad is had in the left end arranged outside of body, body left end sealing blocking plate is arranged on body plugging plate mount pad by set bolt, plugging plate sealing ring is provided with between body plugging plate mount pad and body left end sealing blocking plate, body left end sealing blocking plate is provided with high pressure water injection mouth, valve seals is provided with between body cavity plugging plate and the inner chamber of valve seat, at body cavity plugging plate, the protruding hydraulic pressure cavity of diaphragm is formed between body left end sealing blocking plate and the inner chamber of valve seat.
A kind of diaphragm and steam ball valve valve seat assembly welding technique, comprise the following steps:
The first step, the body cavity plugging plate installing sealing ring is put in the inner chamber of valve seat, then valve seat is put into body, form groove between the left outside end face of valve seat and the inner chamber of body, left side ring film being close to valve seat places, and makes ring film cover on groove; The left surface of the outer fringe surface and body of body plugging plate mount pad being close to ring film with set bolt is fixed together, the body left end sealing blocking plate having installed plugging plate sealing ring is screwed on body plugging plate mount pad, makes body cavity plugging plate, between body left end sealing blocking plate and the inner chamber of valve seat, be formed with the protruding hydraulic pressure cavity of diaphragm;
Bonding pressure pump joint on second step, the high pressure water injection mouth that arranges on body left end sealing blocking plate, opening pressure pump, water under high pressure is injected in the protruding hydraulic pressure cavity of diaphragm, be pressurized to the operating pressure made needed for ring film distortion, pressurize certain hour, ring film is formed diaphragm projection;
3rd step, closing presure pump, and after pressure release draining, compression pump joint is unloaded from high pressure water injection mouth, then body left end sealing blocking plate is backed out from body plugging plate mount pad, and body cavity plugging plate is taken out from the inner chamber of valve seat, diaphragm is welded capping and to be screwed in body plugging plate mount pad and to compress ring film;
4th step, clamp being placed on circular seam welder tooling platform with diaphragm welding capping and the body of ring film that forms diaphragm projection, adjustment welding parameter, is welded on ring film on valve seat, between ring film and valve seat, forms circular weld;
5th step: the body completing welding job is taken off from circular seam welder tooling platform, the right-hand end shutoff of valve seat is sealed, water under high pressure is injected in the inner chamber of valve seat, keep certain pressure, check that the circular weld place between ring film and valve seat is oozed out with or without water droplet, if ooze out without water droplet, group welding piece is qualified.
Making frock of the present invention realizes easily, simple to operate, thoroughly solves a processing difficult problem for diaphragm projection, makes membrane surface from machining damage, and substantially increases diaphragm and valve seat combination and welding precision, shortens processing assembling cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of assembly welding frock of the present invention;
Fig. 2 be valve seat of the present invention 2 with ring film 3 assembly welding having formed diaphragm projection 13 after structural representation;
Fig. 3 is the structural representation that the valve seat 2 good to assembly welding carries out weld seam infiltration test.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of diaphragm and steam ball valve valve seat assembly welding frock, comprise body 1, valve seat 2 is provided with in body 1, groove 8 is formed between the left outside end face of valve seat 2 and the inner chamber of body 1, ring film 3 is had in the arranged outside of groove 8, the inner chamber left end of valve seat 2 is provided with body cavity plugging plate 6, body plugging plate mount pad 10 is had in the left end arranged outside of body 1, body left end sealing blocking plate 4 is arranged on body plugging plate mount pad 10 by set bolt 12, plugging plate sealing ring 11 is provided with between body plugging plate mount pad 10 and body left end sealing blocking plate 4, body left end sealing blocking plate 4 is provided with high pressure water injection mouth 5, valve seals 9 is provided with between body cavity plugging plate 6 and the inner chamber of valve seat 2, at body cavity plugging plate 6, the protruding hydraulic pressure cavity 7 of diaphragm is formed between body left end sealing blocking plate 4 and the inner chamber of valve seat 2.
A kind of diaphragm and steam ball valve valve seat assembly welding technique, comprise the following steps:
The first step, the body cavity plugging plate 6 installing sealing ring 9 is put in the inner chamber of valve seat 2, then valve seat 2 is put into body 1, groove 8 is formed between the left outside end face of valve seat 2 and the inner chamber of body 1, the left side that ring film 3 is close to valve seat 2 is placed, makes ring film 3 cover on groove 8; The left surface of the outer fringe surface and body 1 of body plugging plate mount pad 10 being close to ring film 3 with set bolt 12 is fixed together, the body left end sealing blocking plate 4 having installed plugging plate sealing ring 11 is screwed on body plugging plate mount pad 10, makes body cavity plugging plate 6, between body left end sealing blocking plate 4 and the inner chamber of valve seat 2, be formed with the protruding hydraulic pressure cavity 7 of diaphragm;
Bonding pressure pump joint on the high pressure water injection mouth 5 of second step, setting on body left end sealing blocking plate 4, opening pressure pump, water under high pressure is injected in the protruding hydraulic pressure cavity 7 of diaphragm, be pressurized to and make ring film 3 be out of shape required operating pressure, pressurize certain hour, ring film 3 is formed diaphragm projection 13;
3rd step, closing presure pump, and after pressure release draining, compression pump joint is unloaded from high pressure water injection mouth 5, then body left end sealing blocking plate 4 is backed out from body plugging plate mount pad 10, and body cavity plugging plate 6 is taken out from the inner chamber of valve seat 2, diaphragm is welded capping 15 and to be screwed in body plugging plate mount pad 10 and to compress ring film 3;
4th step, to clamp being placed on circular seam welder tooling platform with diaphragm welding capping 15 and the body 1 of ring film 3 that forms diaphragm projection 13, adjustment welding parameter, ring film 3 is welded on valve seat 2, between ring film 3 and valve seat 2, forms circular weld 14;
5th step: the body 1 completing welding job is taken off from circular seam welder tooling platform, the right-hand end shutoff of valve seat 2 is sealed, water under high pressure is injected in the inner chamber of valve seat 2, keep certain pressure, check that circular weld 14 place between ring film 3 and valve seat 2 is oozed out with or without water droplet, if ooze out without water droplet, group welding piece is qualified.
Total invention thinking of the present invention is the true installation environment of simulating ring film 3 and valve seat 2 with body 1, and the diaphragm projection 13 suppressed with water under high pressure medium on ring film 3, the ring film after assembly welding 3 and valve seat 2 is made to adapt to the use of future in valve body better, the object reaching high accuracy combination and the surface of ring film 3 is preserved from.Whether frock of the present invention also serves the effect killed two birds with one stone, also for welding the circular weld 14 between ring film 3 with valve seat 2 tightly detect.
Claims (2)
1. a diaphragm and steam ball valve valve seat assembly welding frock, comprise body (1), valve seat (2) is provided with in body (1), groove (8) is formed between the inner chamber of valve seat (2) left outside end face and body (1), it is characterized in that, ring film (3) is had in the arranged outside of groove (8), the inner chamber left end of valve seat (2) is provided with body cavity plugging plate (6), body plugging plate mount pad (10) is had in the left end arranged outside of body (1), body left end sealing blocking plate (4) is arranged on body plugging plate mount pad (10) by set bolt (12), plugging plate sealing ring (11) is provided with between body plugging plate mount pad (10) and body left end sealing blocking plate (4), body left end sealing blocking plate (4) is provided with high pressure water injection mouth (5), valve seals (9) is provided with between body cavity plugging plate (6) and the inner chamber of valve seat (2), in body cavity plugging plate (6), protruding hydraulic pressure cavity (7) of diaphragm is formed between the inner chamber of body left end sealing blocking plate (4) and valve seat (2).
2. diaphragm and a steam ball valve valve seat assembly welding technique, comprises the following steps:
The first step, the body cavity plugging plate (6) installing sealing ring (9) is put in the inner chamber of valve seat (2), then valve seat (2) is put into body (1), groove (8) is formed between the left outside end face of valve seat (2) and the inner chamber of body (1), the left side that ring film (3) is close to valve seat (2) is placed, makes ring film (3) cover on groove (8); The left surface of the outer fringe surface and body (1) of body plugging plate mount pad (10) being close to ring film (3) with set bolt (12) is fixed together, body left end sealing blocking plate (4) having installed plugging plate sealing ring (11) is screwed on body plugging plate mount pad (10), makes body cavity plugging plate (6), between body left end sealing blocking plate (4) and the inner chamber of valve seat (2), be formed with protruding hydraulic pressure cavity (7) of diaphragm;
Second step, the upper Bonding pressure pump joint of high pressure water injection mouth (5) above arranged at body left end sealing blocking plate (4), opening pressure pump, water under high pressure is injected in protruding hydraulic pressure cavity (7) of diaphragm, be pressurized to the operating pressure made needed for ring film (3) distortion, pressurize certain hour, at ring film (3) upper formation diaphragm projection (13);
3rd step, closing presure pump, and after pressure release draining, compression pump joint is unloaded from high pressure water injection mouth (5), then body left end sealing blocking plate (4) is backed out from body plugging plate mount pad (10), and body cavity plugging plate (6) is taken out from the inner chamber of valve seat (2), diaphragm is welded capping (15) and to be screwed in body plugging plate mount pad (10) and to compress ring film (3);
4th step, the body (1) of ring film (3) welding capping (15) and form diaphragm projection (13) is placed on circular seam welder tooling platform clamps with diaphragm, adjustment welding parameter, ring film (3) is welded on valve seat (2), between ring film (3) and valve seat (2), forms circular weld (14);
5th step: the body (1) completing welding job is taken off from circular seam welder tooling platform, the right-hand end shutoff of valve seat (2) is sealed, water under high pressure is injected in the inner chamber of valve seat (2), keep certain pressure, check that circular weld (14) place between ring film (3) and valve seat (2) is oozed out with or without water droplet, if ooze out without water droplet, group welding piece is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825307.XA CN105382458B (en) | 2015-11-24 | 2015-11-24 | Diaphragm and steam ball valve valve seat group mounted welder and its assembly welding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825307.XA CN105382458B (en) | 2015-11-24 | 2015-11-24 | Diaphragm and steam ball valve valve seat group mounted welder and its assembly welding technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105382458A true CN105382458A (en) | 2016-03-09 |
| CN105382458B CN105382458B (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510825307.XA Active CN105382458B (en) | 2015-11-24 | 2015-11-24 | Diaphragm and steam ball valve valve seat group mounted welder and its assembly welding technique |
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| Country | Link |
|---|---|
| CN (1) | CN105382458B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307571A (en) * | 2018-09-29 | 2019-02-05 | 山西江淮重工有限责任公司 | A kind of body strength test closure tooling with inner cavity inclined hole water outlet |
| CN109883614A (en) * | 2019-03-14 | 2019-06-14 | 上海市特种设备监督检验技术研究院 | A kind of ball-valve sealing base test mould and application method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844025A (en) * | 1972-08-23 | 1974-10-29 | Gestra Ksb Vertrieb Gmbh | Method of making a pressure actuated control device |
| US4160464A (en) * | 1973-12-06 | 1979-07-10 | United Kingdom Atomic Energy Authority | Sealing members |
| JPS5597567A (en) * | 1979-01-18 | 1980-07-24 | Utsue Valve Kk | Manufacturing method of diaphragm of diaphragm valve |
| US5613517A (en) * | 1994-10-24 | 1997-03-25 | Reseal International Limited Partnership | Sheath valve |
| US6189861B1 (en) * | 1997-02-03 | 2001-02-20 | Swagelok Company | Diaphragm valve |
| CN201715015U (en) * | 2010-07-16 | 2011-01-19 | 凯特姆球阀制造(四川)有限公司 | Metal-seal fixed ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
| CN205184120U (en) * | 2015-11-24 | 2016-04-27 | 山西江淮重工有限责任公司 | Diaphragm and steam ball valve seating assembly welding frock |
-
2015
- 2015-11-24 CN CN201510825307.XA patent/CN105382458B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844025A (en) * | 1972-08-23 | 1974-10-29 | Gestra Ksb Vertrieb Gmbh | Method of making a pressure actuated control device |
| US4160464A (en) * | 1973-12-06 | 1979-07-10 | United Kingdom Atomic Energy Authority | Sealing members |
| JPS5597567A (en) * | 1979-01-18 | 1980-07-24 | Utsue Valve Kk | Manufacturing method of diaphragm of diaphragm valve |
| US5613517A (en) * | 1994-10-24 | 1997-03-25 | Reseal International Limited Partnership | Sheath valve |
| US6189861B1 (en) * | 1997-02-03 | 2001-02-20 | Swagelok Company | Diaphragm valve |
| CN201715015U (en) * | 2010-07-16 | 2011-01-19 | 凯特姆球阀制造(四川)有限公司 | Metal-seal fixed ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
| CN205184120U (en) * | 2015-11-24 | 2016-04-27 | 山西江淮重工有限责任公司 | Diaphragm and steam ball valve seating assembly welding frock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307571A (en) * | 2018-09-29 | 2019-02-05 | 山西江淮重工有限责任公司 | A kind of body strength test closure tooling with inner cavity inclined hole water outlet |
| CN109883614A (en) * | 2019-03-14 | 2019-06-14 | 上海市特种设备监督检验技术研究院 | A kind of ball-valve sealing base test mould and application method |
| CN109883614B (en) * | 2019-03-14 | 2024-02-27 | 上海市特种设备监督检验技术研究院 | Ball valve sealing seat test die and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105382458B (en) | 2017-07-11 |
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