CN202648938U - Thermal state sealing test device of super high temperature hot valve - Google Patents
Thermal state sealing test device of super high temperature hot valve Download PDFInfo
- Publication number
- CN202648938U CN202648938U CN 201220344300 CN201220344300U CN202648938U CN 202648938 U CN202648938 U CN 202648938U CN 201220344300 CN201220344300 CN 201220344300 CN 201220344300 U CN201220344300 U CN 201220344300U CN 202648938 U CN202648938 U CN 202648938U
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- blind flange
- pressure testing
- testing blind
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Abstract
A thermal state sealing test device of a super high temperature hot valve mainly detects the matching parameter of the hot valve with the working pressure of an oil cylinder under different working pressures and at different working temperatures and the insulation performance of the valve. The thermal state sealing test device is characterized in that: an insulation layer (4) is respectively lined on the inner side of an inlet pressure test blind plate (1) and the inner side of an outlet pressure test blind plate (2), an air inlet (7) is communicated with a nitrogen cylinder (8) by a pipeline (9), and an air outlet (13) is communicated with a needle valve (14), a distilled water bottle (15) and a flow meter (16) in turn. The thermal state sealing test device of the super high temperature hot valve can conveniently detect the working pressure of the oil cylinder under different working pressures and at different working temperatures, and simultaneously detects the insulation performance of the valve.
Description
Technical field
The utility model relates to a kind of pick-up unit of valve, is specifically related to a kind of Thermal Transient Sealing Test device of superhigh temperature thermal valve.
Background technology
Thermal valve is mounted in the superhigh-temperature and-pressure liquid operated globe valve in the spacecraft testing device, 900 ℃ of the maximum operating temperatures of valve, maximum working pressure (MOP) 12MPa.The switching motion of valve is realized by rack-mount side's hydraulic jack.Valve mainly is comprised of parts such as valve body, valve gap, spool, valve rod, insulated lining structure, valve seat, valve rod cooling body, support, hydraulic cylinder assemblies.Before valve dispatches from the factory, except carry out casing rigidity test, hydraulic seal test by " inspect and test of valve " standard, also must carry out other two tests: 1. valve under different operating pressure, different operating temperature with the match test of oil cylinder working pressure; 2. when the body cavity working temperature is 900 ℃, be incubated one hour, measure valve outer surface temperature (T≤100 ℃).
Because this valve uses in hypervelocity (12 Mach) flow tunnel testing device, wind tunnel test need to be inputted many parameters such as different pressures and temperature, the driving mechanism of valve must have suitable driving force to be complementary, driving force is little, then valve seal incessantly, driving force is excessive, surpasses the specific pressure allowable of valve sealing face, will damage sealing surface by pressure or reduce valve serviceable life.Especially under high-temperature condition, seal face materials hardness can reduce, and seal pressure allowable can descend, and at high temperature the seal pressure allowable of STL wimet there is no data and can look into, and only has by testing to analyze summary, proposes relatively reliably data to the user.Also do not detect at present the test unit of above-mentioned technical indicator.
The utility model content
For detect thermal valve under different operating pressure, different operating temperature with the matching parameter of oil cylinder working pressure and the heat-insulating property of valve, the utility model provides a kind of Thermal Transient Sealing Test device of superhigh temperature thermal valve, the Thermal Transient Sealing Test device of this superhigh temperature thermal valve can detect the oil cylinder working pressure under different operating pressure, the different operating temperature easily, also can detect the heat-insulating property of valve simultaneously.
The technical scheme that the utility model adopts is: a kind of Thermal Transient Sealing Test device of superhigh temperature thermal valve, comprise entrance point PRESSURE TESTING BLIND FLANGE and endpiece PRESSURE TESTING BLIND FLANGE, entrance point PRESSURE TESTING BLIND FLANGE and endpiece PRESSURE TESTING BLIND FLANGE are installed in respectively entrance point and the endpiece of valve body, the inboard of the inboard of entrance point PRESSURE TESTING BLIND FLANGE and endpiece PRESSURE TESTING BLIND FLANGE all is lined with heat-insulation layer, the thermopair of the entrance point inside that extend into valve body is installed on the entrance point PRESSURE TESTING BLIND FLANGE, the entrance point inside of valve body is provided with electric heater, the entrance point PRESSURE TESTING BLIND FLANGE is provided with the air admission hole that communicates with the entrance point of valve body, air admission hole is communicated with nitrogen cylinder by pipeline, is provided with successively the gas cylinder variable valve on the pipeline, deep layer operation valve and tensimeter; The endpiece PRESSURE TESTING BLIND FLANGE is provided with venthole, and venthole is communicated with needle valve, distilled water bottle and flowmeter successively.
The outside surface of described valve body is provided with the contact temperature controller.
The beneficial effects of the utility model are: owing to taking technique scheme, measure the working pressure of oil cylinder under different operating pressure, different operating temperature, also can detect the heat-insulating property of valve simultaneously.According to the data that record, just can calculate STL wimet seal pressure allowable at high temperature, and then when practical application, under the prerequisite that guarantees sealing property, also can apply rational driving force on the driving mechanism of valve, improve the serviceable life of valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1-entrance point PRESSURE TESTING BLIND FLANGE among the figure, 2-endpiece PRESSURE TESTING BLIND FLANGE, 3-valve body, 4-heat-insulation layer, the 5-thermopair, 6-electric heater, 7-air admission hole, the 8-nitrogen cylinder, 9-pipeline, 10-gas cylinder variable valve, 11-deep layer operation valve, 12-tensimeter, 13-venthole, the 14-needle valve, 15-distilled water bottle, 16-flowmeter, the 17-temperature controller, 18-temperature indicating device, 19-oil cylinder.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
As shown in Figure 1, a kind of Thermal Transient Sealing Test device of superhigh temperature thermal valve, comprise entrance point PRESSURE TESTING BLIND FLANGE 1 and endpiece PRESSURE TESTING BLIND FLANGE 2, entrance point PRESSURE TESTING BLIND FLANGE 1 and endpiece PRESSURE TESTING BLIND FLANGE 2 are installed in respectively entrance point and the endpiece of valve body 3, the inboard of the inboard of entrance point PRESSURE TESTING BLIND FLANGE 1 and endpiece PRESSURE TESTING BLIND FLANGE 2 all is lined with heat-insulation layer 4, heat-insulation layer 4 adopts alumina silicate fiber felt, the thermopair 5 of the entrance point inside that extend into valve body 3 is installed on the entrance point PRESSURE TESTING BLIND FLANGE 1, thermopair 5 links to each other with temperature indicating device 18, the entrance point inside of valve body 3 is provided with electric heater 6, entrance point PRESSURE TESTING BLIND FLANGE 1 is provided with the air admission hole 7 that communicates with the entrance point of valve body 3, air admission hole 7 is communicated with nitrogen cylinder 8 by pipeline 9, is provided with successively gas cylinder variable valve 10 on the pipeline 9, deep layer operation valve 11 and tensimeter 12; Endpiece PRESSURE TESTING BLIND FLANGE 2 is provided with venthole 13, and venthole 13 is communicated with needle valve 14, distilled water bottle 15 and flowmeter 16 successively.
During actual the use, valve is in half off status, starts Hydraulic Station, connects electric heater 6 power supplys, with cold air the cooling tube of valve rod, spool and valve seat is supplied gas simultaneously.When thermopair 5 displays temperatures are 505 ℃, open gas cylinder variable valve 10 and deep layer operation valve 11, the inner chamber pressurization adopts high-pressure nitrogen bottle 8 as pressure source, guarantees the working pressure of valve inlet end by gas cylinder variable valve 10 and deep layer operation valve 11.When leaking appearred in valve sealing face, the gas of leakage can enter distilled water bottle 15 by the needle valve 14 of endpiece, produced bubble, and leakage rate is measured by flowmeter 16.When tensimeter 12 showed that pressure is 1MPa, the operation solenoid valve made oil cylinder 19 oil-feeds of control thermal valve valve rod, regulated oil cylinder 19 pressure and was strengthened gradually by little, with valve seal.Observe distilled water bottle 15, if without bubble, prove that then valve seals.Record oil cylinder 19 working pressures of this moment.With this pressure long run test three times, and effect is very approaching, and this numerical value then is official test numerical value.
For the second time test is to keep valve body 3 interior temperature-resistant, increases valve body 3 entrance point inner chamber test pressures to 2MPa, and at this moment valve body sealing surface will leak (distilled water bottle 15 has bubble), slowly increases oil cylinder 19 working pressures, until without bubble.Behind the triplicate, record oil cylinder 19 working pressures at this moment.
According to the method described above, valve body 3 entrance point chamber pressures are followed successively by 4MPa, 6MPa, 8MPa, 10MPa, 12MPa, regulate reduction valve pressure at every turn, record each oil cylinder working pressure.
And then the change temperature, test oil cylinder 19 working pressures until finish 35 different temperature and pressure tests, draw 35 oil cylinders, 19 working pressure records, even if this test has been finished successively.
The below is the battery of tests data, wherein the working pressure of valve be divided into 1,2,4,6,8,10,12MPa totally 7 pressure stages, the working temperature of valve is divided into 505 ℃, 611 ℃, 715 ℃, 809 ℃, 900 ℃ totally 5 temperature grades, they make up in correspondence with each other, do altogether 35 tests, the test measured value sees Table 1.According to these test datas, just can calculate STL wimet seal pressure allowable at high temperature.During the valve practical application, under the prerequisite that guarantees sealing property, can apply rational driving force on the driving mechanism of valve, improve the serviceable life of valve.
Table 1 thermal valve oil cylinder is regulated force value
The outside surface of described valve body 3 is provided with contact temperature controller 17.Valve body 3 heat insulation and preservation effects are tested following operation, when thermopair 5 temperature are shown as 900 ℃, be incubated 1 hour, (raise such as temperature, then cut off the electricity supply, temperature reduces then plugged), the displays temperature of contact temperature controller 17 meeting fast rise during beginning, when being elevated to 88 ℃, just up and down 2 ℃ of fluctuations, keep after 1 hour, finishing temperature is 88 ℃.Above-mentioned test figure embodies the effect of valve body 3 inside surface heat-insulation and heat-preservations.
Claims (2)
1. the Thermal Transient Sealing Test device of a superhigh temperature thermal valve, comprise entrance point PRESSURE TESTING BLIND FLANGE (1) and endpiece PRESSURE TESTING BLIND FLANGE (2), entrance point PRESSURE TESTING BLIND FLANGE (1) and endpiece PRESSURE TESTING BLIND FLANGE (2) are installed in respectively entrance point and the endpiece of valve body (3), it is characterized in that: the inboard of the inboard of entrance point PRESSURE TESTING BLIND FLANGE (1) and endpiece PRESSURE TESTING BLIND FLANGE (2) all is lined with heat-insulation layer (4), the thermopair (5) of the entrance point inside that extend into valve body (3) is installed on the entrance point PRESSURE TESTING BLIND FLANGE (1), the entrance point inside of valve body (3) is provided with electric heater (6), entrance point PRESSURE TESTING BLIND FLANGE (1) is provided with the air admission hole (7) that communicates with the entrance point of valve body (3), air admission hole (7) is communicated with nitrogen cylinder (8) by pipeline (9), is provided with successively gas cylinder variable valve (10) on the pipeline (9), deep layer operation valve (11) and tensimeter (12); Endpiece PRESSURE TESTING BLIND FLANGE (2) is provided with venthole (13), and venthole (13) is communicated with needle valve (14), distilled water bottle (15) and flowmeter (16) successively.
2. the Thermal Transient Sealing Test device of superhigh temperature thermal valve according to claim 1, it is characterized in that: the outside surface of described valve body (3) is provided with contact temperature controller (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344300 CN202648938U (en) | 2012-07-17 | 2012-07-17 | Thermal state sealing test device of super high temperature hot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344300 CN202648938U (en) | 2012-07-17 | 2012-07-17 | Thermal state sealing test device of super high temperature hot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648938U true CN202648938U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344300 Expired - Fee Related CN202648938U (en) | 2012-07-17 | 2012-07-17 | Thermal state sealing test device of super high temperature hot valve |
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| CN (1) | CN202648938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788692A (en) * | 2012-07-17 | 2012-11-21 | 浙江石化阀门有限公司 | Thermal state seal test device of superhigh temperature hot valve |
| CN108254130A (en) * | 2017-12-30 | 2018-07-06 | 北京化工大学 | Continuous high-temperature sealing performance test wind tunnel device |
| CN108287044A (en) * | 2017-12-30 | 2018-07-17 | 北京化工大学 | A kind of elevated-temperature seal experimental provision that sealing pressing force is continuously adjustable |
-
2012
- 2012-07-17 CN CN 201220344300 patent/CN202648938U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788692A (en) * | 2012-07-17 | 2012-11-21 | 浙江石化阀门有限公司 | Thermal state seal test device of superhigh temperature hot valve |
| CN102788692B (en) * | 2012-07-17 | 2016-01-20 | 浙江石化阀门有限公司 | The Thermal Transient Sealing Test method of superhigh temperature thermal valve |
| CN108254130A (en) * | 2017-12-30 | 2018-07-06 | 北京化工大学 | Continuous high-temperature sealing performance test wind tunnel device |
| CN108287044A (en) * | 2017-12-30 | 2018-07-17 | 北京化工大学 | A kind of elevated-temperature seal experimental provision that sealing pressing force is continuously adjustable |
| CN108254130B (en) * | 2017-12-30 | 2020-09-22 | 北京化工大学 | Wind tunnel device for continuous high-temperature sealing performance test |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180717 |
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| CF01 | Termination of patent right due to non-payment of annual fee |