CN103900769A - Valve pressure testing table - Google Patents
Valve pressure testing table Download PDFInfo
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- CN103900769A CN103900769A CN201410163669.2A CN201410163669A CN103900769A CN 103900769 A CN103900769 A CN 103900769A CN 201410163669 A CN201410163669 A CN 201410163669A CN 103900769 A CN103900769 A CN 103900769A
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- briquetting
- fixed head
- pressing block
- annular groove
- connecting link
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Abstract
The invention discloses a valve pressure testing table which comprises an air cylinder (1), a water tank (2), a pressing block I (3), a connecting rod (4) and a pressing block II (5). The pressing block I (3) is perpendicular to the air cylinder (1) and is arranged on a piston rod of the air cylinder (1), a water inlet of a water flow channel (6) is formed in the top of the pressing block I (3), and a through hole (8) is formed perpendicular to the side face of the pressing block I (3). The connecting rod (4) is provided with the pressing block II (5) which is parallel to the pressing block I (3), an annular groove (7) in the pressing block II (5) and an annular groove (7) in the pressing block I (3) are oppositely formed, and the pressing block I (3) is arranged between a fixing plate (9) and the pressing block II (5). The valve pressure testing table has the advantages that the structure is simple, testing and operation are easy, full testing can be conducted on all positions between a water inlet channel and a water outlet channel of a valve quickly, and whether a leakage phenomenon happens to the valve or not can be clearly observed.
Description
Technical field
The present invention relates to the technical field, particularly a kind of value pressure test platform of the test of intake tunnel to valve and exhalant canal pressure.
Background technology
For delivery of low-temperature liquid oxygen, liquid nitrogen, liquid air, the valve of the cryogens such as liquefied natural gas (LNG) comprises Pull breaking ualve, stop valve, reduction valve etc., in the valve body of these valves, be provided with intake tunnel, the conduction hole of exhalant canal and connection intake tunnel and exhalant canal, cryogenic liquid is via through holes outflow again from intake tunnel enters valve, finally flow out from exhalant canal, due in this process, exhalant canal and intake tunnel all will bear very large pressure, for preventing that exhalant canal and intake tunnel from damaging under pressure, therefore, must carry out pressure test to exhalant canal and intake tunnel and check whether exhalant canal and intake tunnel have the phenomenon of leakage.At present, great majority adopt the method for flaw detection to detect the sealing of aquaporin and intake tunnel, although this method can detect small leak, but this detection method is not comprehensive, the small leak at some narrower concealed position is not detected, therefore, this detection method is not promoted the use of.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of simple in structure, test and simple to operate, can be rapidly the intake tunnel of valve be comprehensively tested everywhere between exhalant canal, can clearly be observed valve and whether have the value pressure test platform of leakage phenomenon.
Object of the present invention is achieved through the following technical solutions: a kind of value pressure test platform, it comprises cylinder, water tank, briquetting I, connecting link and briquetting II, described briquetting I is perpendicular to cylinder and be arranged on the piston rod of cylinder, briquetting I is identical with the structure of briquetting II, in briquetting I and briquetting II, be provided with L shaped water stream channel, the water inlet of water stream channel is arranged on the top of briquetting I, the water delivering orifice of water stream channel is arranged on the side of briquetting I, the side of briquetting I is provided with annular groove and through hole, water delivering orifice is arranged in the annular ring of annular groove, through hole arranges perpendicular to the side of briquetting I, described cylinder is perpendicular to the inwall of water tank and be arranged in water tank, on the cylinder barrel of cylinder, cover has fixed head and fixed head to be parallel to briquetting I setting, connecting link is perpendicular to fixed head and be arranged on fixed head, on connecting link, be provided with the opposed setting of annular groove that is parallel to the briquetting II of briquetting I and the annular groove of briquetting II and briquetting I, briquetting I is arranged between fixed head and briquetting II, in the annular groove of briquetting I and briquetting II, be provided with grommet type seals.
On described fixed head, be provided with two connecting links, and two connecting links are symmetrical arranged.
The two ends of described connecting link are provided with external thread, on described fixed head, be provided with threaded hole, one end of connecting link forms to be threaded with threaded hole and is fixed on fixed head, the other end of connecting link passes successively the through hole of briquetting I and briquetting II and is connected with two nuts, and briquetting II is fixed between two nuts.
The diameter of described through hole is greater than the diameter of connecting link.
Described grommet type seals is O-ring seals.
The present invention has the following advantages: this is used (1) novel cylinder perpendicular to the inwall of water tank and be arranged in water tank, therefore, in water tank, hold the water lower than connecting link, the conduction hole of valve is closed and the end face of the exhalant canal of valve is pressed on the annular groove on briquetting I, in the time of the sealing of test valve exhalant canal and intake tunnel, whether have liquid drippage, whether have leakage phenomenon thereby can clearly observe valve if only needing to observe the water holding.(2) briquetting I of the present invention is identical with the structure of briquetting II, in briquetting I and briquetting II, be provided with L shaped water stream channel, the side of briquetting I is provided with annular groove, on connecting link, be provided with the opposed setting of annular groove that is parallel to the briquetting II of briquetting I and the annular groove of briquetting II and briquetting I, test out before aquaporin sealing, pass into the cryogenic liquid of different pressures value toward the water inlet of briquetting I, cryogenic liquid enters exhalant canal through water stream channel, whether there is liquid drippage by observing the water holding in water tank, thereby complete the test to exhalant canal sealing, before test intake tunnel sealing, first start cylinder, the piston rod of cylinder stretches out, valve is drawn close to briquetting II with briquetting I, the end face of the intake tunnel of valve is pressed on the annular groove on briquetting II, pass into again the cryogenic liquid of different pressures value toward the water inlet of briquetting II, cryogenic liquid enters intake tunnel through water stream channel, whether there is drop by observing the water holding in water tank, thereby complete the test to intake tunnel sealing, finally open the spool of valve, exhalant canal and intake tunnel are communicated with, thereby the conduction hole of valve is communicated with, therefore, this pressure testing table can comprehensively be tested between exhalant canal the intake tunnel of valve rapidly everywhere, operation and test are also very simple.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the I portion zoomed-in view of Fig. 1;
Fig. 3 is that the A of Fig. 1 is to view;
In figure, 1-cylinder, 2-water tank, 3-briquetting I, 4-connecting link, 5-briquetting II, 6-water stream channel, 7-annular groove, 8-through hole, 9 fixed heads-, 10-grommet type seals, 11-nut.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Figure 1, a kind of value pressure test platform, it comprises cylinder 1, water tank 2, briquetting I3, connecting link 4 and briquetting II5, described briquetting I3 is perpendicular to cylinder 1 and be arranged on the piston rod of cylinder 1, briquetting I3 is identical with the structure of briquetting II5, in briquetting I3 and briquetting II5, be provided with L shaped water stream channel 6, the water inlet of water stream channel 6 is arranged on the top of briquetting I3, the water delivering orifice of water stream channel 6 is arranged on the side of briquetting I3, the side of briquetting I3 is provided with annular groove 7 and through hole 8, water delivering orifice is arranged in the annular ring of annular groove 7, through hole 8 arranges perpendicular to the side of briquetting I3.As shown in Figure 1, cylinder 1 is perpendicular to the inwall of water tank 2 and be arranged in water tank 2, on the cylinder barrel of cylinder 1, cover has fixed head 9 and fixed head 9 to be parallel to briquetting I3 setting, connecting link 4 is perpendicular to fixed head 9 and be arranged on fixed head 9, on connecting link 4, be provided with the opposed setting of annular groove 7 that is parallel to the briquetting II5 of briquetting I3 and the annular groove of briquetting II5 7 and briquetting I3, briquetting I3 is arranged between fixed head 9 and briquetting II5, in the annular groove 7 of briquetting I3 and briquetting II5, is provided with grommet type seals 10.Be illustrated in figure 2 the structural representation of annular groove 7 and grommet type seals 10.
As shown in Figure 3, on fixed head 9, be provided with two connecting links 4, and two connecting links 4 are symmetrical arranged.As shown in Figure 1, the two ends of connecting link 4 are provided with external thread, on fixed head 9, be provided with threaded hole, one end of connecting link 4 forms to be threaded with threaded hole and is fixed on fixed head 9, the other end of connecting link 4 passes successively the through hole 8 of briquetting I3 and briquetting II5 and is connected with two nuts 11, and briquetting II5 is fixed between two nuts 11; The diameter of through hole 8 is greater than the diameter of connecting link 4, and grommet type seals 10 is O-ring seals.
The course of work of the present invention is as follows: workman is testing out before aquaporin sealing, first in water tank 2, hold the water lower than connecting link 4, again the conduction hole of valve is closed and the end face of the exhalant canal of valve is pressed on the annular groove 7 on briquetting I3, then pass into the cryogenic liquid of different pressures value toward the water inlet of briquetting I3, cryogenic liquid enters exhalant canal through water stream channel, whether the last water holding in observation water tank 2 that only needs has liquid drippage, thereby has completed the test to exhalant canal sealing, before test intake tunnel sealing, first start cylinder 1, the piston rod of cylinder 1 stretches out, valve is drawn close to briquetting II5 with briquetting I3, the end face of the intake tunnel of valve is pressed on the annular groove 7 on briquetting II5, pass into again the cryogenic liquid of different pressures value toward the water inlet of briquetting II5, cryogenic liquid enters intake tunnel through water stream channel, then observe the water holding in water tank 2 and whether have drop, thereby complete the test to intake tunnel sealing, finally open the spool of valve, exhalant canal and intake tunnel are communicated with, thereby the conduction hole of valve is communicated with, therefore, this pressure testing table can comprehensively be tested between exhalant canal the intake tunnel of valve rapidly everywhere, operation and test are also very simple.
Claims (5)
1. a value pressure test platform, it is characterized in that: it comprises cylinder (1), water tank (2), briquetting I(3), connecting link (4) and briquetting II(5), described briquetting I(3) perpendicular to cylinder (1) and be arranged on the piston rod of cylinder (1), briquetting I(3) with briquetting II(5) structure identical, briquetting I(3) and briquetting II(5) in be provided with L shaped water stream channel (6), the water inlet of water stream channel (6) is arranged on briquetting I(3) top, the water delivering orifice of water stream channel (6) is arranged on briquetting I(3) side, briquetting I(3) side be provided with annular groove (7) and through hole (8), water delivering orifice is arranged in the annular ring of annular groove (7), through hole (8) is perpendicular to briquetting I(3) side arrange, described cylinder (1) is perpendicular to the inwall of water tank (2) and be arranged in water tank (2), on the cylinder barrel of cylinder (1), cover has fixed head (9) and fixed head (9) to be parallel to briquetting I(3) arrange, connecting link (4) is perpendicular to fixed head (9) and be arranged on fixed head (9), on connecting link (4), be provided with and be parallel to briquetting I(3) briquetting II(5) and briquetting II(5) annular groove (7) and briquetting I(3) the opposed setting of annular groove (7), briquetting I(3) be arranged on fixed head (9) and briquetting II(5) between, briquetting I(3) and briquetting II(5) annular groove (7) in be provided with grommet type seals (10).
2. a kind of pressure testing table according to claim 1, is characterized in that: on described fixed head (9), be provided with two connecting links (4), and two connecting links (4) are symmetrical arranged.
3. a kind of pressure testing table according to claim 1 and 2, it is characterized in that: the two ends of described connecting link (4) are provided with external thread, described fixed head is provided with threaded hole on (9), one end of connecting link (4) forms to be threaded with threaded hole and is fixed on fixed head (9), the other end of connecting link (4) is successively through briquetting I(3) and briquetting II(5) through hole (8) and be connected with two nuts (11), briquetting II(5) be fixed between two nuts (11).
4. a kind of pressure testing table according to claim 1, is characterized in that: the diameter of described through hole (8) is greater than the diameter of connecting link (4).
5. a kind of pressure testing table according to claim 1, is characterized in that: described grommet type seals (10) is O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163669.2A CN103900769A (en) | 2014-04-22 | 2014-04-22 | Valve pressure testing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163669.2A CN103900769A (en) | 2014-04-22 | 2014-04-22 | Valve pressure testing table |
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| Publication Number | Publication Date |
|---|---|
| CN103900769A true CN103900769A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410163669.2A Pending CN103900769A (en) | 2014-04-22 | 2014-04-22 | Valve pressure testing table |
Country Status (1)
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| CN (1) | CN103900769A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316272A (en) * | 2014-11-14 | 2015-01-28 | 江南工业集团有限公司 | Low-temperature valve airtightness test device |
| CN105115672A (en) * | 2015-10-16 | 2015-12-02 | 江南工业集团有限公司 | Detection device and method for low-temperature stop valve |
| CN109612640A (en) * | 2018-12-10 | 2019-04-12 | 美钻深海能源科技研发（上海）有限公司 | A kind of valve stem seal test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305136A (en) * | 1991-04-02 | 1992-10-28 | Honda Motor Co Ltd | Pressure leakage inspector for valve |
| KR100828569B1 (en) * | 2006-09-29 | 2008-05-19 | 양현태 | Leakage tester for a valve |
| KR100895805B1 (en) * | 2008-04-04 | 2009-05-08 | 주식회사 한 에너지 시스템 | Apparatus for testing water leakage of heating water distributer |
| JP4948081B2 (en) * | 2006-08-11 | 2012-06-06 | 積水化学工業株式会社 | Water pressure test equipment |
| CN203798511U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Pressure testing platform for valve |
-
2014
- 2014-04-22 CN CN201410163669.2A patent/CN103900769A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305136A (en) * | 1991-04-02 | 1992-10-28 | Honda Motor Co Ltd | Pressure leakage inspector for valve |
| JP4948081B2 (en) * | 2006-08-11 | 2012-06-06 | 積水化学工業株式会社 | Water pressure test equipment |
| KR100828569B1 (en) * | 2006-09-29 | 2008-05-19 | 양현태 | Leakage tester for a valve |
| KR100895805B1 (en) * | 2008-04-04 | 2009-05-08 | 주식회사 한 에너지 시스템 | Apparatus for testing water leakage of heating water distributer |
| CN203798511U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Pressure testing platform for valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316272A (en) * | 2014-11-14 | 2015-01-28 | 江南工业集团有限公司 | Low-temperature valve airtightness test device |
| CN105115672A (en) * | 2015-10-16 | 2015-12-02 | 江南工业集团有限公司 | Detection device and method for low-temperature stop valve |
| CN109612640A (en) * | 2018-12-10 | 2019-04-12 | 美钻深海能源科技研发（上海）有限公司 | A kind of valve stem seal test method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |