CN107702859B - Shutoff frock is used in valve body intensity test - Google Patents
Shutoff frock is used in valve body intensity test Download PDFInfo
- Publication number
- CN107702859B CN107702859B CN201711197985.1A CN201711197985A CN107702859B CN 107702859 B CN107702859 B CN 107702859B CN 201711197985 A CN201711197985 A CN 201711197985A CN 107702859 B CN107702859 B CN 107702859B
- Authority
- CN
- China
- Prior art keywords
- water inlet
- valve body
- bowl
- shaped
- water outlet
- Prior art date
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 238000003466 welding Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 9
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
Abstract
The invention discloses a plugging tool for a valve body strength test, which solves the problem that a welding groove is easy to damage when a water inlet and a water outlet are plugged before a high-pressure hydraulic test is performed on a valve body. Bowl-shaped plugging covers with conical inner cavities are respectively buckled on the outer circular surfaces of a water inlet and a water outlet of the valve body (1), a welding groove and the end surfaces of the water inlet and the water outlet are both arranged in the inner cavities of the bowl-shaped plugging covers, threaded through holes (10) are formed in the bottom surfaces of the bowl-shaped water inlet plugging covers (6), a nozzle pipe (11) is connected in the threaded through holes (10) in a screwed mode, an L-shaped left baffle (17) is connected to the outer side surface of the bowl-shaped water inlet plugging covers (6) in a pressed mode, an L-shaped right baffle (18) is connected to the outer side surface of the bowl-shaped water outlet plugging covers (14) in a pressed mode, and counter bolts (19) are arranged between the L-shaped left baffle (17) and the L-shaped right baffle (18). The welding groove is not damaged, the production efficiency of the product is improved, and the repair rate after the test is greatly reduced.
Description
Technical Field
The invention relates to a tool for a valve body in a high-pressure hydraulic test, in particular to a plugging tool for plugging a water inlet and a water outlet of the valve body, which is used for the high-pressure hydraulic test of the valve body with welding grooves at two ports of the valve body.
Background
When the valve body of the valve used in the nuclear power field is manufactured, a high-pressure hydraulic pressure strength test is carried out on the valve body, and whether the strength of the valve body meets the design requirement is checked. The valve is installed in two modes, namely welding mode and flange connection mode, and the valve is usually connected with the pipeline in a butt joint mode at important parts of a nuclear power system, so that welding grooves are required to be machined on the outer circular surface of a water inlet and the outer circular surface of a water outlet of the valve body, and a very narrow butt joint surface is generally arranged in the welding grooves. When the valve body strength test is carried out, if the traditional plugging mode is adopted for the water inlet and the water outlet, the welding grooves at the two ends of the valve body and the butt joint surfaces of the welding grooves are easily damaged, and after the test is finished, the grooves are required to be repaired again, so that the production test period of a product is prolonged, the production efficiency is reduced, and the production cost is increased.
Disclosure of Invention
The invention provides a plugging tool for a valve body strength test, which solves the technical problem that a welding groove is easy to damage when a water inlet and a water outlet are plugged before a high-pressure hydraulic test is performed on a valve body.
The invention solves the technical problems by the following technical proposal:
the utility model provides a shutoff frock for valve body intensity test, including the valve body of taking the welding groove, be provided with the water inlet welding groove on the water inlet outer disc of valve body, be provided with the water inlet terminal surface in the inboard of water inlet welding groove, be provided with the delivery port welding groove on the delivery port outer disc of valve body, be provided with the delivery port terminal surface in the inboard of delivery port welding groove, the lock joint has the bowl form water inlet shutoff cover of taking the toper inner chamber on the water inlet outer disc of valve body, water inlet welding groove and water inlet terminal surface all set up in the inner chamber of bowl form water inlet shutoff cover, be provided with water inlet terminal surface protection clearance between the inner chamber bottom surface of water inlet terminal surface and bowl form water inlet shutoff cover, be provided with the screw thread through-hole on the bottom surface of bowl form water inlet shutoff cover, the spiro union has the mouth pipe in the screw thread through-hole, be provided with the bowl form delivery port shutoff cover of taking the toper inner chamber on the delivery port outer disc of valve body, delivery port welding groove and delivery port terminal surface all set up in the inner chamber of bowl form delivery port shutoff cover, be provided with delivery port terminal surface protection clearance between the inner chamber bottom surface of bowl form water outlet shutoff cover, the outside face crimping has L shape left baffle on the lateral surface of bowl form water inlet shutoff cover, right side face and L shape baffle setting up the L shape baffle.
A water inlet sealing ring is arranged between the inner cavity conical surface of the bowl-shaped water inlet plugging cover and the water inlet outer circular surface of the valve body, and a water outlet sealing ring is arranged between the inner cavity conical surface of the bowl-shaped water outlet plugging cover and the water outlet outer circular surface of the valve body; a control end valve cover is arranged on a control port of the valve body; an annular abutting table is arranged on the outer side wall of the nozzle pipe, the inner side surface of the annular abutting table is abutted with the bottom end surface of the bowl-shaped water inlet plugging cover, and a nozzle pipe sealing ring is arranged between the inner side surface of the annular abutting table and the bottom end surface of the bowl-shaped water inlet plugging cover.
The invention solves the problem that the welding groove of the valve body is easy to damage in the valve body hydraulic test of the welding installation method, ensures that the welding groove is not damaged, improves the production efficiency of products, and greatly reduces the repair rate after the test.
Drawings
Fig. 1 is a schematic view of the structure of the valve body of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
the plugging tool for the valve body strength test comprises a valve body 1 with a welding groove, wherein a water inlet welding groove 2 is formed in the water inlet outer circular surface of the valve body 1, a water inlet end surface 7 is formed in the inner side of the water inlet welding groove 2, a water outlet welding groove 3 is formed in the water outlet outer circular surface of the valve body 1, a water outlet end surface 15 is formed in the inner side of the water outlet welding groove 3, a bowl-shaped water inlet plugging cover 6 with a conical inner cavity is fastened on the water inlet outer circular surface of the valve body 1, both the water inlet welding groove 2 and the water inlet end surface 7 are arranged in the inner cavity of the bowl-shaped water inlet plugging cover 6, a water inlet end surface protection gap 8 is formed between the water inlet end surface 7 and the inner cavity bottom surface of the bowl-shaped water inlet plugging cover 6, a threaded through hole 10 is formed in the bottom surface of the bowl-shaped water inlet plugging cover 6, a nozzle pipe 11 is connected in the threaded through hole 10 in a threaded manner, a bowl-shaped plugging cover 14 with the conical inner cavity is fastened on the water outlet outer circular surface of the valve body 1, both the water outlet welding groove 3 and the water outlet end surface 15 are arranged in the inner cavity of the bowl-shaped water outlet plugging cover 14, a water outlet protection gap 16 is formed between the water outlet end surface 15 and the inner cavity bottom surface of the bowl-shaped water outlet protection gap 14, a left baffle 17 is arranged on the left side surface and the bowl-shaped water outlet plugging cover 18, and a right baffle plate 18 is arranged on the left side surface and the bowl-shaped plugging cover 18; the high-pressure water enters the valve body 1 from the nozzle pipe 11, the pressure of the water pressure in the valve body to the bowl-shaped water inlet plugging cover 6 and the bowl-shaped water outlet plugging cover 14 can be balanced by adjusting the pulling force of the split bolts 19, and four split bolts are generally arranged between the baffle 17 and the L-shaped right baffle 18 so as to achieve balanced compression of the L-shaped left baffle 17 and the L-shaped right baffle 18.
A water inlet sealing ring 9 is arranged between the inner cavity conical surface of the bowl-shaped water inlet plugging cover 6 and the water inlet outer circular surface of the valve body 1, and a water outlet sealing ring is arranged between the inner cavity conical surface of the bowl-shaped water outlet plugging cover 14 and the water outlet outer circular surface of the valve body 1; a control end valve cover 5 is arranged on the control port 4 of the valve body 1; an annular abutment 12 is arranged on the outer side wall of the nozzle pipe 11, the inner side surface of the annular abutment 12 is abutted with the bottom end surface of the bowl-shaped water inlet plugging cover 6, and a nozzle pipe sealing ring 13 is arranged between the inner side surface of the annular abutment 12 and the bottom end surface of the bowl-shaped water inlet plugging cover 6. The nozzle pipe 11 is connected with a pressure pump, a power supply of the pressure pump is connected, the pressure pump is started, high-pressure water is injected into the inner cavity of the valve body 1, the pressure is increased to the working pressure required by the test, the pressure is maintained for a certain time, whether leakage occurs or not is checked, and if the leakage does not occur, the test is qualified.
Claims (2)
1. The utility model provides a shutoff frock for valve body intensity test, including taking valve body (1) of welding groove, be provided with water inlet welding groove (2) on the water inlet excircle face of valve body (1), be provided with water inlet terminal surface (7) in the inboard of water inlet welding groove (2), be provided with water outlet welding groove (3) on the delivery port excircle face of valve body (1), be provided with delivery port terminal surface (15) in the inboard of delivery port welding groove (3), a serial communication port, buckling on the water inlet excircle face of valve body (1) has bowl form water inlet shutoff cover (6) of taking the toper inner chamber, water inlet welding groove (2) and water inlet terminal surface (7) all set up in the inner chamber of bowl form water inlet shutoff cover (6), be provided with water inlet terminal surface protection clearance (8) between the inner chamber bottom surface of water inlet terminal surface (7) and bowl form water inlet shutoff cover (6), be provided with screw thread through-hole (10) on the bottom surface of bowl form water inlet shutoff cover (6), the spiro union has mouth pipe (11) in screw thread through-hole (10), buckling on the delivery port excircle face of valve body (1) has bowl form water outlet cover (14) of taking the toper inner chamber, delivery port terminal surface (3) and delivery port (15) all set up in the shutoff in bowl form, a water outlet end face protection gap (16) is arranged between the water outlet end face (15) and the bottom surface of the inner cavity of the bowl-shaped water outlet plugging cover (14), an L-shaped left baffle (17) is pressed on the outer side face of the bowl-shaped water inlet plugging cover (6), an L-shaped right baffle (18) is pressed on the outer side face of the bowl-shaped water outlet plugging cover (14), and a split bolt (19) is arranged between the L-shaped left baffle (17) and the L-shaped right baffle (18).
2. The plugging tool for the valve body strength test according to claim 1, wherein a water inlet sealing ring (9) is arranged between the inner cavity conical surface of the bowl-shaped water inlet plugging cover (6) and the water inlet outer circular surface of the valve body (1), and a water outlet sealing ring is arranged between the inner cavity conical surface of the bowl-shaped water outlet plugging cover (14) and the water outlet outer circular surface of the valve body (1); a control end valve cover (5) is arranged on a control port (4) of the valve body (1); an annular abutting table (12) is arranged on the outer side wall of the nozzle pipe (11), the inner side surface of the annular abutting table (12) is abutted with the bottom end surface of the bowl-shaped water inlet plugging cover (6), and a nozzle pipe sealing ring (13) is arranged between the inner side surface of the annular abutting table (12) and the bottom end surface of the bowl-shaped water inlet plugging cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197985.1A CN107702859B (en) | 2017-11-25 | 2017-11-25 | Shutoff frock is used in valve body intensity test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197985.1A CN107702859B (en) | 2017-11-25 | 2017-11-25 | Shutoff frock is used in valve body intensity test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702859A CN107702859A (en) | 2018-02-16 |
| CN107702859B true CN107702859B (en) | 2023-12-26 |
Family
ID=61185941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711197985.1A Active CN107702859B (en) | 2017-11-25 | 2017-11-25 | Shutoff frock is used in valve body intensity test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107702859B (en) |
Families Citing this family (1)
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010058267A (en) * | 1999-12-27 | 2001-07-05 | 김형국 | Seat sealing testor for satety and pressure prevention valve |
| AU2003200153A1 (en) * | 2003-01-17 | 2004-08-05 | Peter Aitcheson | Plumbing + drainage test valve |
| CN101694437A (en) * | 2009-09-28 | 2010-04-14 | 中材科技（苏州）有限公司 | Water jacket and water pressure test device applying same |
| JP2012108065A (en) * | 2010-11-19 | 2012-06-07 | Kyowa:Kk | Water pressure test pump |
| CN102749173A (en) * | 2011-04-17 | 2012-10-24 | 哈电集团哈尔滨电站阀门有限公司 | Block valve hydraulic test device |
| CN106404550A (en) * | 2016-11-12 | 2017-02-15 | 山西江淮重工有限责任公司 | Valve body strength test fixture and test method with inner cavity segment pressure bearing |
| CN207515961U (en) * | 2017-11-25 | 2018-06-19 | 山西江淮重工有限责任公司 | A kind of body strength experiment closure tooling |
-
2017
- 2017-11-25 CN CN201711197985.1A patent/CN107702859B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010058267A (en) * | 1999-12-27 | 2001-07-05 | 김형국 | Seat sealing testor for satety and pressure prevention valve |
| AU2003200153A1 (en) * | 2003-01-17 | 2004-08-05 | Peter Aitcheson | Plumbing + drainage test valve |
| CN101694437A (en) * | 2009-09-28 | 2010-04-14 | 中材科技（苏州）有限公司 | Water jacket and water pressure test device applying same |
| JP2012108065A (en) * | 2010-11-19 | 2012-06-07 | Kyowa:Kk | Water pressure test pump |
| CN102749173A (en) * | 2011-04-17 | 2012-10-24 | 哈电集团哈尔滨电站阀门有限公司 | Block valve hydraulic test device |
| CN106404550A (en) * | 2016-11-12 | 2017-02-15 | 山西江淮重工有限责任公司 | Valve body strength test fixture and test method with inner cavity segment pressure bearing |
| CN207515961U (en) * | 2017-11-25 | 2018-06-19 | 山西江淮重工有限责任公司 | A kind of body strength experiment closure tooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107702859A (en) | 2018-02-16 |
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