CN101571456A - Ultra-large screw pre-tightening internal expanding type valve test bed - Google Patents
Ultra-large screw pre-tightening internal expanding type valve test bed Download PDFInfo
- Publication number
- CN101571456A CN101571456A CNA2009100526406A CN200910052640A CN101571456A CN 101571456 A CN101571456 A CN 101571456A CN A2009100526406 A CNA2009100526406 A CN A2009100526406A CN 200910052640 A CN200910052640 A CN 200910052640A CN 101571456 A CN101571456 A CN 101571456A
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- valve
- blind plate
- right blind
- ultra
- internal expanding
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Abstract
The invention relates to an ultra-large screw pre-tightening internal expanding type valve test bed, which comprises a screw driving mechanism for internal expanding sealing of an internal channel and is characterized in that two ends of a tested valve are provided with a left blind plate and a right blind plate, and the left and right blind plates are in sealed fit connection with a channel of the tested valve and are connected with the screw driving mechanism, so that the tested valve is pre-tightened together with the left and right blind plates. The fit connection part of the left and right blind plates and the channel of the test valve is provided with an O-shaped sealing ring. The test bed adopts the modes of screw pre-tightening and the internal expanding sealing of the internal channel to perform each item of detection on the valve. The two ends of the tested valve are provided with the left blind plate and the right blind plate, so that the tested valve is detected without external compression, and the detection result is true and reliable, accords with domestic and international detection standards of correlative valves, and can be applicable to testing ultra-large valves.
Description
Technical field
The present invention relates to a kind of valve test bedly, especially a kind of ultra-large type that is used for screw pre-tightening internal expanding type valve is valve test bed.
Background technology
The valve detection of weld port, present way be with testing table with tested valve jam-packed after, carry out every detection of valve again, tested valve is to detect under the very big external force squeezing action being subjected to, the true and reliable property of testing result is not high, does not meet internal and international related valve examination criteria.
Summary of the invention
The present invention will provide a kind of ultra-large screw pre-tightening internal expanding type valve test bed, this valve test bed employing screw pre-tightening, internal channel internal expanding seal form are carried out every detection of valve, tested valve is detected under the external force squeezing action that is not subjected to, testing result is true and reliable, meets internal and international related valve examination criteria.
For achieving the above object, technical scheme of the present invention is: a kind of ultra-large screw pre-tightening internal expanding type valve test bed, comprise the screw drive mechanism that is used for the sealing of internal channel internal expanding, be characterized in: left and right blind plate is housed at the two ends of tested valve, the channel seal of left and right blind plate and tested valve is connected, and left and right blind plate is connected with screw drive mechanism, is used for tested valve and left and right blind plate pretension together.
The passage place of being connected of left and right blind plate and tested valve is provided with O-ring seals.
The invention has the beneficial effects as follows: the present invention adopts screw pre-tightening, internal channel internal expanding seal form to carry out every detection of valve.At the two ends of tested valve, installed left blind plate and right blind plate, tested valve is detected under the external force squeezing action that is not subjected to, testing result is true and reliable, meets internal and international related valve examination criteria.And can be applicable to the test of ultra-large type valve.
Description of drawings
Fig. 1 is a structure cut-open view of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, of the present invention ultra-large screw pre-tightening internal expanding type valve test bed, comprise the screw drive mechanism that is used for the sealing of internal channel internal expanding, left and right blind plate 2,3.
Left and right blind plate 2,3 is housed at the two ends of tested valve 1, and left and right blind plate 2,3 is connected with the channel seal of tested valve 1, and left and right blind plate 2,3 is equipped with O-ring seals 4 with the passage place of being connected of tested valve 1.
Left and right blind plate 2,3 is connected with screw drive mechanism, is used for tested valve 1 and left and right blind plate 2,3 pretensions together.
This valve test bed employing screw pre-tightening, internal channel internal expanding seal form are carried out every detection of valve.Two ends at tested valve 1, left blind plate 2 and right blind plate 3 have been installed, left side blind plate 2 and right blind plate 3 are by certain requirement, cooperate with the passage of valve 1, left side blind plate 2 and right blind plate 3 have all installed O-ring seals 4, adopt screw driven mode, with a tested valve 1 and a left side, right blind plate pretension together, the be not affected external force of testing result of tested valve 1, when the test(ing) medium of valve cavity begins to go up pressure, the O-ring seals 4 of device will carry out reliable and effective sealing on left side blind plate 2 and the right blind plate 3, and the screw rod of testing table only plays and withstand blind plate, the effect that does not allow it withdraw from from the passage of tested valve at this moment.
This valve test bed major parameter is as follows:
(1) seal style: screw pre-tightening internal channel internal expansion type sealing;
(2) trial stretch:
20”：2500LB；
24”-36”：600-1500LB；
40”-48”：600-900LB；
56”：600LB；
(3) design bearing pressure: 3200 tons;
(4) test valve length: 1397-3710 (containing sleeve);
(5) valve maximum gauge: Φ 2335;
(6) testing table physical dimension: (length * wide * height)
9715×3540×3000
(7) testing table weight: 110 tons.
Claims (2)
- One kind ultra-large screw pre-tightening internal expanding type valve test bed, comprise the screw drive mechanism that is used for the sealing of internal channel internal expanding, it is characterized in that: left and right blind plate (2 is housed at the two ends of tested valve (1), 3), left and right blind plate (2,3) is connected with the channel seal of tested valve (1), and left and right blind plate (2,3) be connected with screw drive mechanism, be used for together tested valve (1) and left and right blind plate (2,3) pretension.
- 2. according to claim 1 ultra-large screw pre-tightening internal expanding type valve test bed, it is characterized in that: described left and right blind plate (2,3) is provided with O-ring seals (4) with the passage place of being connected of tested valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100526406A CN101571456A (en) | 2009-06-08 | 2009-06-08 | Ultra-large screw pre-tightening internal expanding type valve test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100526406A CN101571456A (en) | 2009-06-08 | 2009-06-08 | Ultra-large screw pre-tightening internal expanding type valve test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571456A true CN101571456A (en) | 2009-11-04 |
Family
ID=41230864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100526406A Pending CN101571456A (en) | 2009-06-08 | 2009-06-08 | Ultra-large screw pre-tightening internal expanding type valve test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439103A (en) * | 2013-09-05 | 2013-12-11 | 上海增欣机电设备制造有限公司 | Hydraulic top pressure type valve testing stand servo control system |
-
2009
- 2009-06-08 CN CNA2009100526406A patent/CN101571456A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439103A (en) * | 2013-09-05 | 2013-12-11 | 上海增欣机电设备制造有限公司 | Hydraulic top pressure type valve testing stand servo control system |
| CN103439103B (en) * | 2013-09-05 | 2016-06-08 | 上海增欣机电科技股份有限公司 | The valve test bed servocontrol system of hydraulic top-pressure formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091104 |