CN2210390Y - Valve type apparatus for testing pressure - Google Patents
Valve type apparatus for testing pressure Download PDFInfo
- Publication number
- CN2210390Y CN2210390Y CN 94221980 CN94221980U CN2210390Y CN 2210390 Y CN2210390 Y CN 2210390Y CN 94221980 CN94221980 CN 94221980 CN 94221980 U CN94221980 U CN 94221980U CN 2210390 Y CN2210390 Y CN 2210390Y
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- valve
- test
- piston
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Abstract
The utility model relates to valve type apparatus for testing pressure, comprising a machine frame, a lead screw vertical type mounting which is fixed on the machine frame, a pressurized mechanism for testing medium, a test medium adding mechanism and an electric appliance control mechanism. A counting mechanism which is connected by a water pump, a stop valve, an upper mounting seal plate, a water box, a permuting cylinder, an electromagnetic valve, an electronic balance and a cup is arranged on the machine frame. A piston super charger is arranged on the pressurized mechanism. The piston super charger is arranged in the pressurized mechanism for testing medium. A low pressure oil pump is used for obtaining the high-pressure test water. The utility model has compact structure, low cost, accurate test result, steady test pressure and low energy consumption, and the utility model can quickly measure the leakage quantity of mm<3> per second.
Description
The utility model relates to a kind of valve pressure test machine.
At present the Valve pressure test device majority that uses is the test unit of common routine, does not have accurate measurement means, and on a body, mechanism is not huge and heavy for clamping and pressing mechanism, and cost is also high.And because means of testing is backward, the national standard that adapts with it is not high yet, in ZB16009-90 " test of valve and the check " standard as approval enforcement in 1990, the measurement unit of maximum leakage amount is for dripping/minute (liquid) or bubble/minute (gas), to yield to backward measuring technology.The result make measuring technology and national standard relatively rest on same low-level on.
The purpose of this utility model is to provide a kind of collection clamping, pressurization and metering to be one, can be rapidly accurately with mm
3The Valve pressure test device of/second metering leakage rate.
The purpose of this utility model realizes in the following way: this Valve pressure test device comprises frame, is fixed on the vertical clamping of screw mandrel, test(ing) medium pressing mechanism, test(ing) medium adding mechanism and electrical equipment control mechanism on the frame, and its main points are:
A. on the frame metering mechanism is set, pressing mechanism is provided with piston super charger,
B. said metering mechanism links to each other water pump with pipeline with stop valve, link to each other with two stop valves respectively by last clamping sealing pad then, two stop valves link to each other with the bottom of water tank with the displacement tube respectively again, displacement tube top is connected with solenoid valve, the Hu Zui bottom of displacement tube is placed with the cup that places on the electronic scales
C. said test(ing) medium pressing mechanism connects non-return valve by oil pump, and non-return valve connects solenoid directional control valve and surplus valve respectively, and reversal valve connects the left chamber and the lumen of piston super charger respectively,
D. said test(ing) medium adds mechanism and is connected in sequence by water pump, non-return valve, stop valve, be connected with following clamping flange seal dish with the right chamber of piston super charger respectively by pipeline, perhaps be connected successively in following clamping flange seal dish by gas cylinder, solenoid valve and non-return valve.
Compared with the prior art the utility model has the following advantages:
1, rational in infrastructure, compact, cost is low, clamping, pressurization and metering are one.
2, the measurement of leakage rate is owing to adopted the electronic scale of high precision value, can obtain very accurate leakage rate numerical value, and can link to each other with microcomputer and can gather test datas such as leakage rate, force value, dwell time automatically, create condition for the test data modern management, improved fairness, accuracy, the reliability of test result.
3, pressue device obtains high-potting water owing to the pressure conversion that has adopted hydraulic oil and test water by supercharger with the low pressure fuel pump system, and not only testing pressure stability is high, and energy resource consumption only is 1/2 of original technology.
Below with reference to accompanying drawing the utility model is described in further detail.
Fig. 1 is the structural representation of facing of the present utility model.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is a side-looking structural representation of the present utility model.
Fig. 4 is the structural representation of displacement tube.
Fig. 5 is the structural representation of piston super charger.
Fig. 6 is a fundamental diagram of the present utility model.
Fig. 7 is ring structure figure.
Shown in Fig. 1,2,3,6, the utility model is by frame 25, be fixed on sealing pad on the vertical clamping of screw mandrel on the frame 15 and lower seal dish 13 and be arranged on test(ing) medium compression system on the frame, test(ing) medium adds system and electrical apparatus control system is formed, metering mechanism is set on the frame, is provided with piston super charger 1 in the compression system.Metering mechanism links to each other water pump 7 with pipeline with stop valve 23, link to each other with stop valve 22,16 respectively by last clamping sealing pad then, the other end of stop valve 22,16 links to each other with the bottom of water tank 19 with displacement tube 20 respectively, solenoid valve 21 is arranged at displacement tube top, and the Hu Zui bottom of displacement tube is placed with the cup 18 that places on the electronic scale 17.The test(ing) medium pressing mechanism connects non-return valve 4 by oil pump 5, and non-return valve connects solenoid directional control valve 2 and surplus valve 3 respectively, and solenoid directional control valve connects the left chamber and the lumen of piston super charger 1 respectively.Test(ing) medium adds mechanism and is divided into two-way, liquid medium adds mechanism by water pump 7, non-return valve 8, stop valve 9 links to each other successively, be connected tensimeter 6 so that observation post's plus-pressure value on the pipeline between non-return valve 8 and the stop valve 9, and the extraction tube head links to each other with the right chamber of piston super charger in this pipeline section, the other end of stop valve 9 links to each other with following clamping flange seal dish 13, gas medium adds mechanism by gas cylinder 26(or pneumatic plant), solenoid valve 12 and non-return valve 11 link to each other successively, lead to then in following clamping flange seal dish 13, lead in the pipeline bottom of following clamping ring flange and be connected with stop valve 10, liquid medium after the test can be put into the storage medium box, can be recycled.As shown in Figure 4, the tube 20 of replacing of the present utility model is made up of cylindrical shell 201, core pipe 202 and the kettle mouth 203 of sealing, the core pipe is positioned at the middle part of cylindrical shell, its upper end passes to cylindrical shell top, the outlet of Hu Zui is lower than the suitable for reading of core pipe, the top and the bottom of cylindrical shell are provided with pipe adapter, can be connected with stop valve 22 with solenoid valve 21 respectively.Clamping flange seal dish is provided with multiple different size under the utility model, so that the valve of test different size.As shown in Figure 5, piston super charger 1 of the present utility model is provided with the piston 102 that corresponding different cross section links to each other and forms by in the continuous housing 101 that forms of two different cross section cavitys, is equipped with O-ring seal 103 on piston or the housing.As shown in Figure 7, the O-ring seal 27 that uses on the clamping about the utility model, is that rectangular rubber ring 272 is formed by steel loop 271 with the cross section, 1-180 ° of groove is set, to overcome three waterline decentraction on O RunddichtringO and the tested valve two ends and poorly sealed deficiency on the inward flange of this rubber ring.
Below in conjunction with accompanying drawing 1,2,3, the 6 explanation principle of work of the present utility model and the courses of work.With tested valve 14 sandwich put up and down O-ring seal 27 between the clamping well and clamp after, test(ing) medium adopts aqueous rust preventive or gas to carry out valve housing and leakage test.When test(ing) medium is aqueous rust preventive, test through following mode, start water pump 7 with aqueous rust preventive from the water storage tank sucking-off, in the right chamber of process non-return valve 8, stop valve 9 injection superchargers 1 and the cavity of tested valve 14, start oil pump 5 then, make hydraulic oil pass through non-return valve 4, solenoid directional control valve 2 enters the left chamber of supercharger, pushes piston to the right side.After the piston balance, the right chamber of supercharger just obtains a higher pressure, and its value size is set up by surplus valve 3.When test(ing) medium is gas, open solenoid valve 12, can make tested valve body obtain the gas medium of 0.5-0.7Mpa.The seal leakage metering, liquid, gas all carry out according to the following procedure: open water pump 7 aqueous rust preventive is filled with water tank 19 through stop valve 23 and 16.Close 23 then, open stop valve 22, solenoid valve 21 water in the water tank 19 is recycled in the displacement tube 20, by as shown in Figure 4, when water surface elevation reaches H, water closes 16 and 21 during from 203 overflows of kettle mouth, makes displacement tube 20 upper ends form an enclosure space.
This moment P
1=P
0
P
1Pressure in the-displacement tube upper end closed space
P
0The outer atmospheric pressure of-displacement tube
When tested valve test(ing) medium, no matter be liquid or gas, release from valve sealing face, when stop valve 22, core pipe 202 enter displacement tube 20 upper end closed spaces, this space pressure is increased, then P
1P
0, the water in the displacement tube is discharged by kettle mouth 203 under this pressure reduction, enters volume in the displacement tube, i.e. P when the volume of institute's drainage water equals leaking medium
1=P
0The time, the inside and outside pressure of displacement tube is from newly restoring balance, and Hu Zui no longer there are flowing out, and the water of outflow falls in the cup 18, measures it by electronic scale 17 and measures accurately, can be converted into mm
3The leakage rate of/second.
Can on the pipeline between non-return valve 8 and the stop valve 9, be connected pressure transducer 24 when the utility model uses as shown in figs. 1 and 6, this sensor and electronic scale and solenoid valve 2,12,21 insert on the 386 serial microcomputers, sensor and microcomputer interface are selected 12 A/D conversions for use, can directly use the keying of microcomputer follow procedure control electromagnetic valve, and pressure transducer, electronic scale data are gathered, handle, print and store, this computer operation can make test findings get rid of the influence of individual factor, can accomplish quick, accurate, just.
Claims (4)
1, a kind of Valve pressure test device, the vertical clamping of screw mandrel, test(ing) medium pressing mechanism, the test(ing) medium that comprise frame, are fixed on the frame add mechanism and electrical equipment control mechanism, it is characterized in that:
A. on the frame metering mechanism is set, pressing mechanism is provided with piston super charger,
B. said metering mechanism links to each other water pump with pipeline with stop valve, link to each other with two stop valves respectively by last clamping sealing pad then, two stop valves link to each other with the bottom of water tank with the displacement tube respectively again, displacement tube top is connected with solenoid valve, the Hu Zui bottom of displacement tube is placed with the cup that places on the electronic scales
C. said test(ing) medium pressing mechanism connects non-return valve by oil pump, and non-return valve connects solenoid directional control valve and surplus valve respectively, and reversal valve connects the left chamber and the lumen of piston type supercharging respectively,
D. said test(ing) medium adds mechanism by water pump, non-return valve, stop valve are connected in sequence, be connected with following clamping flange seal dish with the right chamber of piston super charger respectively by pipeline, perhaps be connected successively in following clamping flange seal dish by gas cylinder, solenoid valve and non-return valve.
2, Valve pressure test device as claimed in claim 1 is characterized in that said displacement tin cylindrical shell, core pipe and a Hu Zui by sealing form, and the core pipe is positioned at the cylindrical shell middle part, and its upper end passes to cylindrical shell top, and the outlet of Hu Zui is lower than the suitable for reading of core pipe.
3, Valve pressure test device as claimed in claim 1 or 2 is characterized in that said piston super charger by being provided with the piston that corresponding different cross section links to each other and forms in the continuous housing that forms of two different cross section cavitys, is equipped with O-ring seal on piston or the housing.
4, Valve pressure test device as claimed in claim 3 is characterized in that the rubber ring cross section of the O-ring seal of clamping is a rectangle up and down, and inner edges is provided with 0-180 ° groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221980 CN2210390Y (en) | 1994-09-21 | 1994-09-21 | Valve type apparatus for testing pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221980 CN2210390Y (en) | 1994-09-21 | 1994-09-21 | Valve type apparatus for testing pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210390Y true CN2210390Y (en) | 1995-10-18 |
Family
ID=33836113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94221980 Expired - Fee Related CN2210390Y (en) | 1994-09-21 | 1994-09-21 | Valve type apparatus for testing pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210390Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427913C (en) * | 2005-04-30 | 2008-10-22 | 武汉理工大学 | Equipment for testing valve performance of oil fuel pump |
| CN100432647C (en) * | 2004-12-03 | 2008-11-12 | 大亚湾核电运营管理有限责任公司 | Lifting check-valve leakage detecting device and detecting method |
| CN101949758A (en) * | 2010-09-02 | 2011-01-19 | 姚柳园 | Intelligent ball valve detection equipment |
| CN101832846B (en) * | 2010-01-26 | 2012-05-09 | 台州环天机械有限公司 | Workbench for detecting air tightness of air valve |
| CN102519683A (en) * | 2011-11-25 | 2012-06-27 | 上海大学 | Energy-saving testing device for high-temperature high-pressure performance of down-hole packer |
| CN103528894A (en) * | 2013-10-16 | 2014-01-22 | 北京矿冶研究总院 | High-universality intelligent vertical pressure test machine |
| CN105444957A (en) * | 2015-02-04 | 2016-03-30 | 新兴重工湖北三六一一机械有限公司 | Short tube pressure testing tool |
-
1994
- 1994-09-21 CN CN 94221980 patent/CN2210390Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432647C (en) * | 2004-12-03 | 2008-11-12 | 大亚湾核电运营管理有限责任公司 | Lifting check-valve leakage detecting device and detecting method |
| CN100427913C (en) * | 2005-04-30 | 2008-10-22 | 武汉理工大学 | Equipment for testing valve performance of oil fuel pump |
| CN101832846B (en) * | 2010-01-26 | 2012-05-09 | 台州环天机械有限公司 | Workbench for detecting air tightness of air valve |
| CN101949758A (en) * | 2010-09-02 | 2011-01-19 | 姚柳园 | Intelligent ball valve detection equipment |
| CN101949758B (en) * | 2010-09-02 | 2012-05-30 | 姚柳园 | Intelligent ball valve detection equipment |
| CN102519683A (en) * | 2011-11-25 | 2012-06-27 | 上海大学 | Energy-saving testing device for high-temperature high-pressure performance of down-hole packer |
| CN103528894A (en) * | 2013-10-16 | 2014-01-22 | 北京矿冶研究总院 | High-universality intelligent vertical pressure test machine |
| CN105444957A (en) * | 2015-02-04 | 2016-03-30 | 新兴重工湖北三六一一机械有限公司 | Short tube pressure testing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |