CN2440207Y - Gas-liquid two-phase medium pressure checking device - Google Patents
Gas-liquid two-phase medium pressure checking device Download PDFInfo
- Publication number
- CN2440207Y CN2440207Y CN 99256513 CN99256513U CN2440207Y CN 2440207 Y CN2440207 Y CN 2440207Y CN 99256513 CN99256513 CN 99256513 CN 99256513 U CN99256513 U CN 99256513U CN 2440207 Y CN2440207 Y CN 2440207Y
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- pressure
- liquid
- gas
- valve
- parallel
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- Expired - Fee Related
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Abstract
The utility model relates to a gas-liquid two-phase medium pressure checking device, which is formed by that a pipeline is connected with a pressure source, a pressure outlet valve and three parallel joints in order, wherein, two joints are respectively connected with a pressure relief valve and a standard pressure gauge, and the other joint is composed of the joint of the measured pressure gauge or the joint of a pressure releaser. The pressure source is connected with a small high-pressure tank and a manual mini type oil pressure pump in parallel, and the connection position of the pressure relief valve of the liquid is provided with a pressure relief oil return pipe communicated with the manual mini type oil pressure pump. The whole device can be arranged in a portable box body, and has gas-liquid two-phase medium pressure sources. The utility model can be used for calibration work in the field, and has convenient use and moving.
Description
The utility model relates to a kind of gas, liquid two-phase medium pressure checking device.
Existing pressure checking device respectively separately with gas or liquid medium as pressure source, generally all be fixed in the laboratory, need carry out with the pressure checking device in gas medium or medium pressure liquid source respectively when to the verification of different medium phase required pressure table meter, and can't carry out verification to the pressure releaser made operating pressure.
The purpose of this utility model provides a kind of easy switching gas, liquid two-phase medium pressure source, can finish different medium phase required pressure table meter and pressure releaser made operating pressure verification work, need not be fixed in the laboratory, conveniently moving can on-the-spot be carried out gas, the liquid two-phase medium pressure checking device of verification work.
The utility model is realized as follows: a kind of gas, liquid two-phase medium pressure checking device are connecting pressure source, pressure export valve and three interfaces in parallel successively by pipeline, interface connects master gauge or the standard tensimeter of keeping on file, interface and blowdown valve, another interface are that the spare interface of tested tensimeter or Voltage release device constitutes; Pressure source has little gas cylinder and manual miniature oil pressure pump, its respectively with composition in parallel again after pressure export valve is separately connected, air venting valve and liquid blowdown valve that blowdown valve by parallel connection constitute, and a pressure release return line with manual miniature oil pressure pump UNICOM is housed in the connection place of liquid blowdown valve constitutes.
Adopt the utility model device can finish following work: (1) carries out pressure checking with the gas medium pressure source; (2) finish verification work with the medium pressure liquid source; (3) by the requirement of above (1)-(2) some pressure releaser made such as safety valve etc. is carried out the operating pressure verification.Need not be fixed in the laboratory, conveniently moving can on-the-spot be carried out gas, the liquid two-phase medium pressure checking device of verification work.
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 gas, liquid two-phase medium pressure checking device synoptic diagram.
1, keep on file tensimeter 6, testing pressure table or pressure releaser made 7, movable oil pooling hood 8, air venting valve 9, liquid pressure release reverse flow valve 10, manual miniature oil pressure pump of little gas cylinder 2, pressure export valve 3, pipeline 4, interface 5, master gauge or standard
Embodiment 1:
Make each accessory as Fig. 1, at first connect little gas cylinder 1 and pressure export valve 2, manual miniature oil pressure pump 10 and pressure export valve 2 respectively, be connected in parallel by pipeline, interface tube 4 again, form pressure source in parallel with pipeline 3; Secondly by interface tube 4, pipeline 3 testing pressure table or pressure releaser made 6, air venting valve 8, master gauge or standard tensimeter 5 threes that keep on file are connected in parallel; It three is that pressure source in parallel is serially connected with in parallel instrument by pipeline 3; Connect 8 one-tenth parallel connections of a liquid pressure release reverse flow valve 9 and gas air venting valve with pipeline 3 in a side of air venting valve 8 at last, the oil return opening of the another port of liquid pressure release reverse flow valve 9 by pipeline 3 and the manual miniature oil pressure pump 10 formation return line that links promptly becomes the pressure checking device of a kind of easy switching gas provided by the utility model, liquid two-phase medium pressure source.As this device is assemblied on the suitcase, a people can carry out the work at the scene.When calibrated in using gases pressure medium source, its process was as follows: A. installs tool interface system to be measured place at this and connects instrument 6 to be measured, as testing pressure table or pressure releases device etc.; Insert at the standard interface place and to meet metering and accuracy class required standard table 5, if verification pressure releaser made operating pressure then needs with the standard tensimeter of keeping on file; B. slowly evenly open little gas cylinder upward pressure outlet valve 2, system gas pressure is evenly constantly raise, indicate the tested tensimeter of verification according to master gauge; C. to the verification of Voltage release device operating pressure, when system pressure reached its operating pressure, Voltage release device moved, system decompression, this moment, the standard manometric passive pointer of keeping on file remained on pressure position before the system decompression, i.e. release movement pressure, thus reach the verification purpose; D. after verification work is finished, close little gas cylinder upward pressure outlet valve 2, open air venting valve 8, when treating that system pressure reduces to zero, unload tested device, close the valve of other unlatching in the work at last.
Embodiment 2:
As each accessory of embodiment 1 fabrication and installation.When the pressure source that uses carries out more on time as liquid medium, its process is as follows: A. such as embodiment 1A; B. the opening pressure outlet valve 2, and uniform and stable is shaken manual miniature oil pressure pump 10, slowly evenly boost, according to the tested tensimeter of master gauge verification; C. during verification release movement pressure, its process is with embodiment 1C, around oil is sprayed onto when avoiding the Voltage release device action, installs a movable oil pooling hood 7 around Voltage release device; D. after verification work is finished, open liquid pressure release reverse flow valve 9, system's inner high voltage oil is let out to low-pressure area, so that recycle; E. system decompression is closed each valve of opening in the work to zero-pressure, unloads tested device.
Claims (1)
1, a kind of gas, liquid two-phase medium pressure checking device, connecting pressure source, pressure export valve and three interfaces in parallel successively by pipeline, interface connects master gauge or the standard tensimeter of keeping on file, an interface parallel connection and is connect gas, liquid blowdown valve, and another interface is that the spare interface of tested tensimeter or pressure releaser made constitutes; It is characterized in that pressure source has little gas cylinder and manual miniature oil pressure pump, it composes in parallel respectively with after pressure export valve is separately connected again; Blowdown valve has two, is respectively gas and liquid blowdown valve, constitutes parallel connection between two blowdown valves, and the connection place of liquid blowdown valve is equipped with a pressure release return line with manual miniature oil pressure pump UNICOM and is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256513 CN2440207Y (en) | 1999-12-14 | 1999-12-14 | Gas-liquid two-phase medium pressure checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256513 CN2440207Y (en) | 1999-12-14 | 1999-12-14 | Gas-liquid two-phase medium pressure checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440207Y true CN2440207Y (en) | 2001-07-25 |
Family
ID=34039622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256513 Expired - Fee Related CN2440207Y (en) | 1999-12-14 | 1999-12-14 | Gas-liquid two-phase medium pressure checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440207Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156023A (en) * | 2011-03-14 | 2011-08-17 | 房刚 | Method for calibrating high pressure equipment |
| CN102435388A (en) * | 2011-09-19 | 2012-05-02 | 大连基准机电设备有限公司 | Automatic pressure measurement switchover control system |
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN107179156A (en) * | 2017-06-30 | 2017-09-19 | 武汉轻工大学 | A kind of pressure gauge tester |
| CN109374201A (en) * | 2018-11-07 | 2019-02-22 | 中国航空工业集团公司西安飞机设计研究所 | Multi-functional pressure calibrating installation |
-
1999
- 1999-12-14 CN CN 99256513 patent/CN2440207Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156023A (en) * | 2011-03-14 | 2011-08-17 | 房刚 | Method for calibrating high pressure equipment |
| CN102435388A (en) * | 2011-09-19 | 2012-05-02 | 大连基准机电设备有限公司 | Automatic pressure measurement switchover control system |
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN103364137B (en) * | 2013-07-03 | 2015-07-29 | 淮南矿业(集团)有限责任公司 | Pressure transducer calibration apparatus |
| CN107179156A (en) * | 2017-06-30 | 2017-09-19 | 武汉轻工大学 | A kind of pressure gauge tester |
| CN109374201A (en) * | 2018-11-07 | 2019-02-22 | 中国航空工业集团公司西安飞机设计研究所 | Multi-functional pressure calibrating installation |
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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 |