CN104833499A - Pressure test moulds, pressure test apparatus and pressure test method - Google Patents
Pressure test moulds, pressure test apparatus and pressure test method Download PDFInfo
- Publication number
- CN104833499A CN104833499A CN201510219843.5A CN201510219843A CN104833499A CN 104833499 A CN104833499 A CN 104833499A CN 201510219843 A CN201510219843 A CN 201510219843A CN 104833499 A CN104833499 A CN 104833499A
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- mold
- pressure testing
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- socket weld
- seal
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Abstract
The invention relates to pressure test moulds and a pressure test apparatus which carry out pressure tests on socket welding valves. The pressure test moulds comprise two end portion sealing moulds and at least one middle sealing mould. When the pressure test moulds are used, the middle sealing mould is mounted between every two socket valves to be tested, then the end portion sealing moulds are installed, and the pressure tests are carried out on the socket valves. According to the invention, the pressure tests can be easily can rapidly carried out. The pressure test apparatus comprises the pressure test moulds, pressure gauges and the like, is simple in structure, and is not restricted by construction fields. According to the invention, by employing the test pressure apparatus to carry out the pressure tests on the socket welding valves through a test pressure method, requirement of the pressure tests on the socket welding valves can be met under simple conditions.
Description
Technical field
The present invention relates to a kind of pressure testing mold, particularly relate to a kind of pressure testing mold of socket weld valve; The invention still further relates to a kind of pressure testing device and adopt this pressure testing device to carry out the pressure-measuring method of pressure testing, particularly relate to a kind of pressure-measuring method of socket weld valve.
Background technology
There is a large amount of socket weld valves in chemical project device, for ensureing valve mass, scene all needs to carry out pressure testing inspection to valve, the intensity of inspection valve and tightness.
Traditional method carries out pressure testing inspection by special value pressure test platform or the mode that directly utilizes rubber blanket two ends to seal is tested.
All there is shortcoming in above two kinds of methods: takes special pressure testing table can be subject to the restriction of construction site condition, and usually, scene cannot satisfy condition, and cannot use special pressure testing table; Two ends directly adopt the mode of rubber seal, and because the not good pressure testing setting ratio of sealing effectiveness is not high, pressure testing is slower.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of structure is simple, sealing effectiveness is better, accelerates pressure testing progress, pressure testing mold, pressure testing device and the pressure-measuring method that also can use under limited or simple condition at the construction field (site).
Pressure testing mold of the present invention, comprise two the end part seal molds be oppositely arranged, at least one intermediate seal mold, described end part seal mold comprises loading plate and the first boss with loading plate one, described first boss can insert the link of socket weld valve, described first outer wall of boss can seal with the link contact internal walls of socket weld valve, described end part seal mold is provided with the first through hole, one end of described first through hole is arranged on the end face of the first boss, the other end of described first through hole is arranged on the end face of loading plate, described intermediate seal mold comprise back up pad and with back up pad one, lay respectively at two the second boss of back up pad both sides, two the second boss can insert the link of socket weld valve respectively, the outer wall of each second boss all can seal with the link contact internal walls of socket weld valve, described intermediate seal mold arranges the second through hole, one end of described second through hole is arranged on the end face of one of them the second boss, the other end of described second through hole is arranged on the end face of another the second boss.
Pressure testing mold of the present invention, is provided with gasket seal between wherein said first boss and the link of socket weld valve, is provided with gasket seal between described second boss and the link of socket weld valve.
Pressure testing mold of the present invention, wherein said end part seal mold, described intermediate seal mold are all formed in one formation.
Pressure testing mold of the present invention, the material of wherein said end part seal mold and intermediate seal mold all adopts steel plate.
Pressure testing mold of the present invention, wherein said loading plate, back up pad are circular, and described first boss, the second boss are round boss.
Pressure testing mold difference from prior art of the present invention is that pressure testing mold of the present invention comprises end part seal mold and intermediate seal mold, and structure is simple; During use, the link contact internal walls of the first outer wall of boss and socket weld valve seals, the outer wall of the second boss also seals with the link contact internal walls of socket weld valve, also gasket seal can be set between the first boss and socket weld valve connection end, between the second boss and socket weld valve connection end, arrange gasket seal, sealing effectiveness is better; Existence of the present invention can carry out pressure testing to the valve of multiple same size simultaneously, as long as select the intermediate seal mold of suitable quantity, accelerates pressure testing progress.
Pressure testing device of the present invention, it comprises aforementioned pressure testing mold, also comprise hold down gag, the first tensimeter and the second tensimeter, described hold down gag is pressed on one of them end part seal mold, described first tensimeter is connected into the first through hole of one of them end part seal mold by the first gauge manifold, first gauge manifold is provided with stop valve, described second tensimeter is connected into the first through hole of another end part seal mold by the second gauge manifold, is provided with stop valve between the second tensimeter and water inlet pressurization point.
Pressure testing device of the present invention, wherein said hold down gag is lifting jack.
Pressure testing device difference from prior art of the present invention is that pressure testing device of the present invention comprises the parts such as pressure testing mold, hold down gag, the first tensimeter and the second tensimeter, and structure is simple; During use, this device and socket weld valve is only needed to install, then entirety is fixed, again intensity and leak test are carried out to socket weld valve, fast simple and easy, condition by completing pressure testing in limited time, the intermediate seal mold of suitable quantity can be selected at the construction field (site), pressure testing can be carried out to multiple socket weld valve simultaneously, pressure testing progress can be accelerated.
Pressure-measuring method of the present invention, it comprises the following steps:
A, basis want the number of the socket weld valve of pressure testing, select the number of intermediate seal mold;
B, connected by multiple socket weld valve intermediate seal mold, two end part seal molds are inserted at two ends, arrange gasket seal;
C, connect the first tensimeter, the second tensimeter and pipeline;
D, pressure testing mold top arrange hold down gag, so far, complete the installation to pressure testing device and socket weld valve;
E, the pressure testing device installed and socket weld valve are fixed on portal frame;
F, socket weld valve to be made a strength test and leak test.
When pressure-measuring method difference from prior art of the present invention is to use pressure-measuring method of the present invention to carry out pressure testing to socket weld valve, pressure testing device and socket weld valve is only needed to install, then entirety is fixed, again intensity and leak test are carried out to socket weld valve, fast simple and easy, condition by completing pressure testing in limited time, the intermediate seal mold of suitable quantity can be selected at the construction field (site), pressure testing can be carried out to multiple socket weld valve simultaneously, pressure testing progress can be accelerated.
Below in conjunction with accompanying drawing, pressure testing mold of the present invention and pressure-measuring method are described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure testing mold medial end portions of the present invention sealing mold;
Fig. 2 is the vertical view of pressure testing mold medial end portions of the present invention sealing mold;
Fig. 3 is the structural representation of the intermediate seal mold in pressure testing mold of the present invention;
Fig. 4 is the vertical view of the intermediate seal mold in pressure testing mold of the present invention;
Fig. 5 is the structural representation of pressure testing device of the present invention;
Fig. 6 is the using state figure of pressure testing device of the present invention.
Embodiment
Shown in composition graphs 1 and Fig. 2, pressure testing mold of the present invention comprises two the end part seal molds 7 be oppositely arranged, end part seal mold 7 comprises the first boss 72 of circular loading plate 71 and the circle with loading plate 71 one, first boss 72 can insert the link of socket weld valve, first boss 72 outer wall can seal with the link contact internal walls of socket weld valve, end part seal mold 7 is provided with the first through hole 73, one end of first through hole 73 is arranged on the end face of the first boss 72, and the other end of the first through hole 73 is arranged on the end face of loading plate 71.
Shown in composition graphs 3 and Fig. 4, the present invention also comprises at least one intermediate seal mold 8, intermediate seal mold 8 comprise circular back up pad 81 and with back up pad 81 one, lay respectively at the second boss 82 that two of back up pad 81 both sides are circular, two the second boss 82 can insert the link of socket weld valve respectively, the outer wall of each second boss 82 all can seal with the link contact internal walls of socket weld valve, intermediate seal mold 8 is arranged the second through hole 83, one end of second through hole 83 is arranged on the end face of one of them the second boss 82, the other end of the second through hole 83 is arranged on the end face of another the second boss 82.Second through hole 83 is coaxial with the first through hole 73.
End part seal mold 7, intermediate seal mold 8 are all formed in one formation.
As shown in Figure 5, when using the present invention to carry out pressure testing, first boss 72 is inserted socket weld valve and contacts with socket weld valve and seals, second boss 82 also inserts socket weld valve and contacts with socket weld valve and seals, and between socket weld valve and the first boss 72, gasket seal 11 is installed, between socket weld valve and the second boss 82, gasket seal 11 is also installed, to seal better, is communicated with between the first through hole 73 with the second through hole 83.
When carrying out pressure testing to socket weld valve, the quantity of intermediate seal mold 8 can be selected according to the quantity of socket weld valve.
As shown in Figure 6, pressure testing device of the present invention comprises pressure testing mold, namely two end part seal molds 7 and intermediate seal mold 8 is comprised, also comprise hold down gag 9, first tensimeter 5 and the second tensimeter 10, hold down gag 9 is pressed on one of them end part seal mold 7, hold down gag 9 is for compressing pressure testing mold, ensure the sealing between pressure testing mold and socket weld valve, first tensimeter 5 is connected into the first through hole 73 of one of them end part seal mold 7 by the first gauge manifold, first gauge manifold is provided with stop valve 12, second tensimeter 10 is connected into the first through hole 73 of another end part seal mold 7 by the second gauge manifold, stop valve 13 is provided with between second tensimeter 10 and water inlet pressurization point.
Be provided with steel pipe between hold down gag 9 and one of them end part seal mold 7, the first gauge manifold connects the first through hole 73 as wherein that mold 7 of this end part seal through steel pipe 3, and then is communicated with socket weld valve.
In figure 6, first boss 72 of one of them end part seal mold 7 inserts in socket weld valve 4 ', first boss 72 of another end part seal mold 7 inserts in socket weld valve 6 ', gasket seal 11 is provided with between first boss 72 and the link of socket weld valve 4 ', be provided with gasket seal 11 between first boss 72 and the link of socket weld valve 6 ', two the second boss 82 of intermediate seal mold 8 respectively and the link of socket weld valve 4 ', socket weld valve 6 ' link between be provided with gasket seal 11.
Hold down gag adopts lifting jack.
During use, this pressure testing device is fixed on portal frame 1 ' upper fixing, then carries out pressure testing, portal frame 1 ' adopts shaped steel to make.
Pressure-measuring method of the present invention, comprises the following steps:
A, basis want the number of the socket weld valve of pressure testing, select the number of intermediate seal mold;
B, connected by multiple socket weld valve intermediate seal mold, two end part seal molds are inserted at two ends, arrange gasket seal;
C, connect the first tensimeter, the second tensimeter and pipeline;
D, pressure testing mold top arrange hold down gag, so far, complete the installation to pressure testing device and socket weld valve;
E, the pressure testing device installed and socket weld valve are fixed on portal frame;
F, socket weld valve to be made a strength test and leak test.
When carrying out pressure testing test, first discharge the air in pressure testing device and two socket weld valves.
When making a strength test to socket weld valve 4 ' and socket weld valve 6 ', first tensimeter 5 is in the state of unscrewing, added by test pump and press water, water enters pipeline from water inlet pressurization point, flow in pressure testing device and two socket weld valves, stop valve 12 is closed when the first tensimeter 5 has water to emerge, gas in pressure testing device and two socket weld valves is discharged, tighten the first tensimeter 5, open stop valve 12 again, then pressurizeed by test pump, until stop pressurization when arriving the valve Strength test pressure of two socket weld valves, close stop valve 13, observe the first tensimeter 5 and the second tensimeter 10, voltage stabilizing checks.
When checking the tightness of socket weld valve 4 ', closing socket weld valve 4 ', then being pressurizeed by test pump until stop pressurization when reaching the Tightness test pressure of socket weld valve 4 ', closing stop valve 13, observe the second tensimeter 10, voltage stabilizing inspection.
When checking the tightness of socket weld valve 6 ', close socket weld valve 6 ', then pressurization is until stop pressurization when reaching the Tightness test pressure of socket weld valve 6, closes stop valve 13, observes the second tensimeter 10, voltage stabilizing inspection.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (8)
1. a pressure testing mold, it is characterized in that: comprise two the end part seal molds (7) be oppositely arranged, at least one intermediate seal mold (8), described end part seal mold (7) comprises loading plate (71) and the first boss (72) with loading plate (71) one, described first boss (72) can insert the link of socket weld valve, described first boss (72) outer wall can seal with the link contact internal walls of socket weld valve, described end part seal mold (7) is provided with the first through hole (73), one end of described first through hole (73) is arranged on the end face of the first boss (72), the other end of described first through hole (73) is arranged on the end face of loading plate (71),
Described intermediate seal mold (8) comprise back up pad (81) and with back up pad (81) integrally, lay respectively at two the second boss (82) of back up pad (81) both sides, two the second boss (82) can insert the link of socket weld valve respectively, the outer wall of each second boss (82) all can seal with the link contact internal walls of socket weld valve, described intermediate seal mold (8) arranges the second through hole (83), one end of described second through hole (83) is arranged on the end face of one of them the second boss (82), the other end of described second through hole (83) is arranged on the end face of another the second boss (82).
2. pressure testing mold according to claim 1, it is characterized in that: between described first boss (72) and the link of socket weld valve, be provided with gasket seal (11), between described second boss (82) and the link of socket weld valve, be provided with gasket seal (11).
3. pressure testing mold according to claim 2, is characterized in that: described end part seal mold (7), described intermediate seal mold (8) are all formed in one formation.
4. pressure testing mold according to claim 3, is characterized in that: the material of described end part seal mold (7) and intermediate seal mold (8) all adopts steel plate.
5. pressure testing mold according to claim 4, is characterized in that: described loading plate (71), back up pad (81) are for circular, and described first boss (72), the second boss (82) are round boss.
6. the pressure testing device using the pressure testing mold according to any one of claim 1-5 to make, it is characterized in that: comprise hold down gag (9), first tensimeter (5) and the second tensimeter (10), described hold down gag (9) is pressed on one of them end part seal mold (7), described first tensimeter (5) is connected into first through hole (73) of one of them end part seal mold (7) by the first gauge manifold, described second tensimeter (10) is connected into first through hole (73) of another end part seal mold (7) by the second gauge manifold.
7. pressure testing device according to claim 6, is characterized in that: described hold down gag is lifting jack.
8. use a pressure-measuring method for the pressure testing device described in claim 6 or 7, it is characterized in that comprising the following steps:
A, basis want the number of the socket weld valve of pressure testing, select the number of intermediate seal mold;
B, connected by multiple socket weld valve intermediate seal mold, two end part seal molds are inserted at two ends, arrange gasket seal;
C, connect the first tensimeter, the second tensimeter and pipeline;
D, pressure testing mold top arrange hold down gag, so far, complete the installation to pressure testing device and socket weld valve;
E, the pressure testing device installed and socket weld valve are fixed on portal frame;
F, socket weld valve to be made a strength test and leak test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219843.5A CN104833499A (en) | 2015-04-30 | 2015-04-30 | Pressure test moulds, pressure test apparatus and pressure test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219843.5A CN104833499A (en) | 2015-04-30 | 2015-04-30 | Pressure test moulds, pressure test apparatus and pressure test method |
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| Publication Number | Publication Date |
|---|---|
| CN104833499A true CN104833499A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510219843.5A Pending CN104833499A (en) | 2015-04-30 | 2015-04-30 | Pressure test moulds, pressure test apparatus and pressure test method |
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| Country | Link |
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| CN (1) | CN104833499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271114A (en) * | 2017-07-25 | 2017-10-20 | 大连三金汽车零部件制造有限公司 | Automobile engine crankshaft damper air-tightness detection device of shell body |
| CN107588905A (en) * | 2017-09-01 | 2018-01-16 | 广州文冲船厂有限责任公司 | A kind of valve pressure testing device |
| CN110375926A (en) * | 2019-07-26 | 2019-10-25 | 福建省特种设备检验研究院 | A kind of valve socket welding end pressure testing sealing structure and its pressure-measuring method |
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| JP2004184320A (en) * | 2002-12-05 | 2004-07-02 | Ishikawajima Harima Heavy Ind Co Ltd | Gas detector for testing piping flange connection |
| CN102030600A (en) * | 2010-11-09 | 2011-04-27 | 湖北帅力化工有限公司 | Novel probe of detonating fuse maker |
| CN202770611U (en) * | 2012-09-05 | 2013-03-06 | 中国化学工程第十四建设有限公司 | Novel industrial valve pressure test system |
| CN202793700U (en) * | 2012-09-10 | 2013-03-13 | 申科滑动轴承股份有限公司 | Air leakage detection device for welding joint |
| CN203287186U (en) * | 2013-05-31 | 2013-11-13 | 天津二十冶建设有限公司 | Valve pressurizing test apparatus |
| CN203929498U (en) * | 2014-05-23 | 2014-11-05 | 天津科电石化科技发展有限公司 | A kind of welding valve is suppressed fixture |
| CN204556246U (en) * | 2015-04-30 | 2015-08-12 | 中国化学工程第三建设有限公司 | Pressure testing mold and pressure testing device |
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2015
- 2015-04-30 CN CN201510219843.5A patent/CN104833499A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004184320A (en) * | 2002-12-05 | 2004-07-02 | Ishikawajima Harima Heavy Ind Co Ltd | Gas detector for testing piping flange connection |
| CN102030600A (en) * | 2010-11-09 | 2011-04-27 | 湖北帅力化工有限公司 | Novel probe of detonating fuse maker |
| CN202770611U (en) * | 2012-09-05 | 2013-03-06 | 中国化学工程第十四建设有限公司 | Novel industrial valve pressure test system |
| CN202793700U (en) * | 2012-09-10 | 2013-03-13 | 申科滑动轴承股份有限公司 | Air leakage detection device for welding joint |
| CN203287186U (en) * | 2013-05-31 | 2013-11-13 | 天津二十冶建设有限公司 | Valve pressurizing test apparatus |
| CN203929498U (en) * | 2014-05-23 | 2014-11-05 | 天津科电石化科技发展有限公司 | A kind of welding valve is suppressed fixture |
| CN204556246U (en) * | 2015-04-30 | 2015-08-12 | 中国化学工程第三建设有限公司 | Pressure testing mold and pressure testing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271114A (en) * | 2017-07-25 | 2017-10-20 | 大连三金汽车零部件制造有限公司 | Automobile engine crankshaft damper air-tightness detection device of shell body |
| CN107588905A (en) * | 2017-09-01 | 2018-01-16 | 广州文冲船厂有限责任公司 | A kind of valve pressure testing device |
| CN110375926A (en) * | 2019-07-26 | 2019-10-25 | 福建省特种设备检验研究院 | A kind of valve socket welding end pressure testing sealing structure and its pressure-measuring method |
| CN110375926B (en) * | 2019-07-26 | 2020-11-13 | 福建省特种设备检验研究院 | Valve socket welding end pressure test sealing structure and pressure test method thereof |
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Application publication date: 20150812 |
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