CN201653646U - Portable pressure gage calibrator - Google Patents
Portable pressure gage calibrator Download PDFInfo
- Publication number
- CN201653646U CN201653646U CN2009202547084U CN200920254708U CN201653646U CN 201653646 U CN201653646 U CN 201653646U CN 2009202547084 U CN2009202547084 U CN 2009202547084U CN 200920254708 U CN200920254708 U CN 200920254708U CN 201653646 U CN201653646 U CN 201653646U
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- connecting pipe
- pressure
- communicated
- pressure gage
- valve
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 29
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 20
- 238000012795 verification Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The utility model provides a portable pressure gage calibrator relating to the technical field of pressure gage calibrators, wherein an air reservoir is communicated with one end of a second connecting pipe; the other end of the second connecting pipe is communicated with one end of a valve; the other end of the valve is communicated with one end of a first connecting pipe; the other end of the first connecting pipe is communicated with a five-way base which is respectively communicated with one end of a third connecting pipe, one end of a fourth connecting pipe, a precise pressure gage and a tested pressure gage joint; the other end of the third connecting pipe is communicated with a pressure adjusting cylinder; the other end of the fourth connecting pipe is communicated with an air-release valve; a piston is arranged in the pressure adjusting cylinder and connected with one end of a regulating bar; the regulating bar is in screw-thread fit with the end cover of the pressure adjusting cylinder; and the other end of the regulating bar is connected with a hand wheel. The calibrator has simple structure, convenient use and convenient carrying, is conductive to environmental protection, and is suitable for field use and SF6 pressure gage calibration.
Description
Technical field
The utility model relates to pressure meter calibration instrument technical field, especially a kind of portable pressure gage tester.
Background technology
In electric system, many tensimeters are arranged, as SF
6Many SF are arranged in the electric switch
6Tensimeter, and SF
6Tensimeter is SF
6One of key element of electric switch, it is used for detecting SF
6SF in the electrical equipment body
6The variation of gas density, its performance quality directly has influence on SF
6The reliable and secure operation of electrical equipment.Be installed on on-the-spot SF
6Tensimeter (density monitor) is because of often action, and the phenomenon of dumb or poor contact of contacts often appears moving in after date during through one section, and what have also the temperature compensation degradation can occur, causes SF when variation of ambient temperature easily
6Tensimeter (density monitor) misoperation.Therefore original power portion has formulated DL/T596-1996 " power equipment preventive trial rules ".This testing regulations regulation: each SF
6The electric switch applying unit should be regularly to SF
6Tensimeter (density monitor) carries out verification.From practical operation situation, to the SF at scene
6It is to prevent trouble before it happens that tensimeter carries out periodic check, ensures one of necessary means of power equipment safety reliability service.At the scene during verification, owing to can not use SF
6Gas in the electrical equipment must use extraneous gas, and this just needs one external air source to be arranged for verification SF
6The portable pressure gage tester that tensimeter uses.Present verification SF
6Manometric method mainly contains following several on the engineering:
First method: directly utilize SF
6The equipment deflation course is to SF
6Tensimeter (density monitor) carries out verification.In this way because will be when venting to SF
6Gas recovery need be established special SF in addition
6Gas concentration unit, very inconvenient, and also checking precision can't guarantee.
Second method: use SF
6Gas cylinder carries out verification, promptly utilizes SF
6The gas of gas cylinder is controlled SF as source of the gas by a valve
6The pressure of gas.Verification in this way, SF
6Gas will be discharged in the air, and is promptly dangerous, also not environmental protection, and checking precision can't guarantee.
Summary of the invention
The purpose of this utility model provides a kind of portable pressure gage tester, and it is simple in structure, and is easy to use, helps environmental protection, and is easy to carry, and is fit to the on-the-spot verification SF that uses
6The portable pressure gage tester of tensimeter (density monitor) usefulness.
Main technical schemes of the present utility model is: a kind of portable pressure gage tester is characterized in that air reservoir is connected with an end of the 2nd connecting pipe; The other end of the 2nd connecting pipe is connected with an end of valve; The other end of valve is communicated with an end of the 1st connecting pipe; The other end of the 1st connecting pipe is communicated with the five-way seat, and the five-way seat is communicated with an end of the 3rd connecting pipe, an end, the precision pressure gauge of the 4th connecting pipe and the pressure tapping of being tested respectively; The other end of the 3rd connecting pipe is connected with pressure regulating cylinder; The other end of the 4th connecting pipe is connected with air release; Piston is arranged in the pressure regulating cylinder; Piston is connected with adjuster bar one end; One end cap threaded engagement of adjuster bar and pressure regulating cylinder, the adjuster bar other end is connected with handwheel.
Described pressure regulating cylinder has 1, the O RunddichtringO that seals more than 2 or 2, and piston is provided with annular groove, and the O RunddichtringO is set in the groove of piston.
Handwheel and adjuster bar can be detachable flexible connection.
The diameter of cylinder of pressure regulating cylinder is good smaller or equal to 25 millimeters.
Described portable pressure gage tester is provided with installing plate, and installing plate is fixed on air reservoir and the pressure regulating cylinder; Valve and five-way seat are fixed on the installing plate.
Good effect of the present utility model is: can effectively solve problems of the prior art, air reservoir by favorable sealing property, pressure regulating cylinder, valve, stud with the piston of O-ring seal, connecting pipe, precision pressure gauge, pressure tapping, adjuster bar and handwheel have just been set up totally enclosed gas-circulating system; Do not waste gas in the checking procedure, help environmental protection; The utility model gas circuit is succinct, improves reliability; The diameter of cylinder of pressure regulating cylinder is smaller or equal to 25 millimeters, and is littler, in light weight than existing pressure meter calibration instrument volume, the regulating action power in the time of can alleviating handwheel greatly and regulate, can be easy to, trickle, slowly, adjusting pressure that repeat, light; Be easy to carry convenient use at the scene simultaneously; Be a kind of simple in structure, easy to use and be easy to carry, be fit to the on-the-spot verification SF that uses
6The portable pressure gage tester that tensimeter is used.
Be described in further detail below in conjunction with embodiment and accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the fundamental diagram of Fig. 1.
The implication of each label is among the figure: piston the 1, the 1st connecting pipe 2A, the 2nd connecting pipe 2B, the 3rd connecting pipe 2C, the 4th connecting pipe 2D, valve 3, shell 4, air reservoir 5, precision pressure gauge 6, five-way seat 7, pressure tapping 8, O RunddichtringO 9A and 9B, adjuster bar 10, handwheel 11, installing plate 12, pressure regulating cylinder 13 and air release 14.
Embodiment
As shown in Figure 1, described portable pressure gage tester mainly is made up of piston the 1, the 1st connecting pipe 2A, the 2nd connecting pipe 2B, the 3rd connecting pipe 2C, the 4th connecting pipe 2D, valve 3, shell 4, air reservoir 5, precision pressure gauge 6, five-way seat 7, pressure tapping 8, O RunddichtringO 9A and 9B, adjuster bar 10, handwheel 11, installing plate 12, pressure regulating cylinder 13 and air release 14.
Concrete installation is as follows: air reservoir 5 is connected with the end of the 2nd connecting pipe 2B, communicates on gas circuit; The other end of the 2nd connecting pipe 2B is connected with an end of valve 3; The other end of valve 3 is connected with the end of the 1st connecting pipe 2A; The other end of the 1st connecting pipe 2A is connected with five-way seat 7; Five-way seat 7 is connected with the end of the 3rd connecting pipe 2C again; Five-way seat 7 is connected with the end of the 4th connecting pipe 2D again; Precision pressure gauge 6 is fixed on the five-way seat 7; Pressure tapping 8 also is fixed on the five-way seat 7; The other end of the 3rd connecting pipe 2C is connected with pressure regulating cylinder 13, and the other end of the 4th connecting pipe 2D is connected with air release 14, and the diameter of cylinder of pressure regulating cylinder 13 is 25 millimeters; Piston 1 is arranged on the pressure regulating cylinder cylinder body, and O RunddichtringO 9A and 9B are set in the groove of piston 1, and its major function is to seal when piston 1 moves adjusting pressure in pressure regulating cylinder 13; Piston 1 is movably connected with adjuster bar 10 again and connects, and adjuster bar 10 diameters in the present embodiment are 14 millimeters; Adjuster bar 10 is connected again on the end cap of pressure regulating cylinder 13, can free activity regulate pressure; Handwheel 11 detachably is movably connected with adjuster bar 10 and connects, and handwheel 11 can be movable, during use and adjuster bar 10 combine, the time spent can be not for convenience detach; Installing plate 12 is fixed on air reservoir 5 and the pressure regulating cylinder 13, and valve 3 and five-way seat 7 are fixed on the installing plate 12; Said elements is installed in again in the shell 4.Behind the intact tensimeter of verification, exit in the time of just can be by air release, lay down gas fully, just can dismantle by the school tensimeter.
When using at the scene, in conjunction with Fig. 2 one pressure meter calibration instrument, as shown in Figure 2, as long as SF
6Gas connects an end and the SF of tracheae
6SF on the electrical equipment
6The pressure meter calibration mouth is connected, SF
6The other end of gas connection tracheae is connected with the pressure tapping 8 on the described pressure meter calibration instrument, after connecting, can observe force value.If gas is not enough, just open described pressure meter calibration instrument valve 3, the gas of air reservoir 5 is released, till gas is enough tested, valve-off then, regulating piston 1 can be regulated the SF that will test
6Manometric pressure is in conjunction with the precision pressure gauge on the pressure meter calibration instrument (also being master gauge), by the SF that will test
6The comparison of the force value of tensimeter and standard precision pressure gauge just can verification SF
6Tensimeter.
Main points of the present utility model are the air reservoirs by favorable sealing property, pressure regulating cylinder, valve, stud with the piston of O-ring seal, and each connecting pipe, precision pressure gauge, pressure tapping, adjuster bar and handwheel have been set up totally enclosed gas-circulating system.So do not waste gas in the checking procedure, help environmental protection; The most important thing is to economize gas, can accomplish that volume is little, in light weight, portable, can well be applied in the field-checking tensimeter.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, and all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. a portable pressure gage tester is characterized in that, air reservoir (5) is connected with an end of the 2nd connecting pipe (2B); The other end of the 2nd connecting pipe (2B) is connected with an end of valve (3); The other end of valve (3) is communicated with an end of the 1st connecting pipe (2A); The other end of the 1st connecting pipe (2A) is communicated with five-way seat (7), and five-way seat (7) is communicated with an end of the 3rd connecting pipe (2C), an end, the precision pressure gauge (6) of the 4th connecting pipe (2D) and the pressure tapping of being tested (8) respectively; The other end of the 3rd connecting pipe (2C) is connected with pressure regulating cylinder (13); The other end of the 4th connecting pipe (2D) is connected with air release (14); Piston (1) is arranged in the pressure regulating cylinder (13); Piston (1) is connected with adjuster bar (10) one ends; One end cap threaded engagement of adjuster bar (10) and pressure regulating cylinder (13), adjuster bar (10) other end is connected with handwheel (11).
2. portable pressure gage tester according to claim 1, it is characterized in that described pressure regulating cylinder (13) has 1, the O RunddichtringO (9A, 9B) that seals more than 2 or 2, piston (1) is provided with annular groove, and O RunddichtringO (9A, 9B) is set in the groove of piston (1).
3. according to the described portable pressure gage tester of claim 1, it is characterized in that handwheel (11) and adjuster bar (10) flexibly connect for detachable.
4. according to the described portable pressure gage tester of claim 1, the diameter of cylinder that it is characterized in that pressure regulating cylinder (13) is smaller or equal to 25 millimeters.
5. according to the described portable pressure gage tester of claim 1, it is characterized in that being provided with installing plate (12), installing plate (12) is fixed on air reservoir (5) and the pressure regulating cylinder (13); Valve (3) and five-way seat (7) are fixed on the installing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202547084U CN201653646U (en) | 2009-11-26 | 2009-11-26 | Portable pressure gage calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202547084U CN201653646U (en) | 2009-11-26 | 2009-11-26 | Portable pressure gage calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653646U true CN201653646U (en) | 2010-11-24 |
Family
ID=43118888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202547084U Expired - Fee Related CN201653646U (en) | 2009-11-26 | 2009-11-26 | Portable pressure gage calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653646U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2461806C1 (en) * | 2011-04-27 | 2012-09-20 | Государственное образовательное учреждение высшего профессионального образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | Apparatus for dynamic calibration of pulsed pressure sensors |
| CN104880383A (en) * | 2015-06-15 | 2015-09-02 | 胜利油田胜油测录工程技术有限公司 | Portable in-situ density sensor calibration instrument |
| CN106017793A (en) * | 2016-07-29 | 2016-10-12 | 昆山市创新科技检测仪器有限公司 | Precision detecting device for force standard machine, force value comparison machine and force standard machine precision detection method |
| CN109752136A (en) * | 2019-01-11 | 2019-05-14 | 北京汽车股份有限公司 | TPMS test macro |
-
2009
- 2009-11-26 CN CN2009202547084U patent/CN201653646U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2461806C1 (en) * | 2011-04-27 | 2012-09-20 | Государственное образовательное учреждение высшего профессионального образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | Apparatus for dynamic calibration of pulsed pressure sensors |
| CN104880383A (en) * | 2015-06-15 | 2015-09-02 | 胜利油田胜油测录工程技术有限公司 | Portable in-situ density sensor calibration instrument |
| CN106017793A (en) * | 2016-07-29 | 2016-10-12 | 昆山市创新科技检测仪器有限公司 | Precision detecting device for force standard machine, force value comparison machine and force standard machine precision detection method |
| CN106017793B (en) * | 2016-07-29 | 2019-08-02 | 昆山市创新科技检测仪器有限公司 | It is a kind of to compare machine and force standard machines accuracy checking method for the accuracy detecting device of force standard machines, force value |
| CN109752136A (en) * | 2019-01-11 | 2019-05-14 | 北京汽车股份有限公司 | TPMS test macro |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: THE MAINTENANCE BRANCH OF HEBEI ELECTRIC POWER COR Effective date: 20121210 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: HEBEI POWER COMPANY ULTRA-HV TRANSMISSION + DISTRIBUTION COMPANY Effective date: 20121210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050070 SHIJIAZHUANG, HEBEI PROVINCE TO: 100761 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121210 Address after: 100761 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Maintenance Branch, Hebei Electric Power Co.,Ltd. Address before: 050070 Hebei city in Shijiazhuang Province, Xinhua District, Zhong Sheng Road No. 66 Patentee before: Hebei Power Company Ultra-HV Transmission & Distribution Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20171126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |