CN202793688U - Pressure gage calibrating device with air as medium - Google Patents
Pressure gage calibrating device with air as medium Download PDFInfo
- Publication number
- CN202793688U CN202793688U CN 201220458785 CN201220458785U CN202793688U CN 202793688 U CN202793688 U CN 202793688U CN 201220458785 CN201220458785 CN 201220458785 CN 201220458785 U CN201220458785 U CN 201220458785U CN 202793688 U CN202793688 U CN 202793688U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pipeline
- air
- air compressor
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a pressure gage calibrating device with air as a medium. The pressure gage calibrating device comprises an air compressor, a gas booster pump, a hand lift pump, a decompression pipeline and a plurality of ports, wherein the air compressor is connected with the gas booster pump through two pipelines, one of the pipelines is sequentially provided with a high pressure adjustor and an air compressor output pressure control stop valve, the gas booster pump is connected with a gas outlet pipeline, a high pressure stop valve is arranged on the gas outlet pipeline, each port is connected with the gas outlet pipeline of the gas booster pump, stop valves are arranged at positions of the ports, the hand lift pump is connected with a low pressure pipeline, a reversing valve, a low pressure adjustor and a low pressure stop valve are sequentially mounted on the low pressure pipeline, each port is connected with the low pressure pipeline, a decompression valve is arranged on the decompression pipeline, and each port is connected with the decompression pipeline. According to the pressure gage calibrating device with the air as the medium, the air compressor serves as a drive air source and provides a calibration medium, the gas booster pump is used as a boost device, a digital pressure gauge is used as a calibrator, and thereby the pressure gage calibrating device with the air as the medium has the advantages of being time and effort saving, efficient and rapid.
Description
Technical field
The utility model relates to the tensimeter calibrating installation that a kind of air is made medium, belongs to mechanics class measurement instrument field.
Background technology
At present, range is that tested tensimeter and master gauge (precision pressure gauge or precise vacuum tensimeter) are installed on the pressure gauge tester in the calibrating of the general purpose pressure gauge of (0.095～60) MPa, low pressure is made medium with air, high pressure is made medium with liquid (water or transformer oil or miscella), give simultaneously the pressurization of tested tensimeter and precision pressure gauge, require to finish this manometric calibrating according to the national verification rules.Because the calibrating medium is different, calibrating low pressure gauge gas checker, blowout-back pressure gauge liquid checker, both can not use with.The calibrating range will be used two to three pressure validators in the general purpose pressure gauge calibration operation of (0.095～60) MPa and just can finish like this.When making medium calibrating tensimeter with oil, mainly contain following shortcoming: the one, because transformer oil or miscella have certain volatility, environment to the calibrating chamber has certain harm, could not produce harm to the testing person by basic guarantee calibrating chamber air so air exhausting device will be installed in tensimeter calibrating chamber; The 2nd, examine and determine in the manometric process, the calibrating medium more or less can be stayed in the bourdon tube part or overflow the relevant pressure pipe joint, when examining and determine tensimeter like this testing person will often be stained with oil on hand, messy; The 3rd, during the calibrating blowout-back pressure gauge, all relatively require great effort with wobble pump or depression bar pump; The 4th, the oxygen gauge that calibrating pressure is higher also will use water as the calibrating medium when (prohibiting oil) or make medium with oil and repeatedly clean bourdon tube and interface again, wastes time and energy.If all make the calibrating medium with gas, with pressure regulation rotary switch controlled pressure size, above problem has just solved, and is time saving and energy saving, efficient quick, environmentally safe.
Summary of the invention
For above-mentioned prior art, the utility model provides a kind of tensimeter calibrating installation of making medium with air, this device with air compressor machine as driving source of the gas and the calibrating medium being provided, with the gas boosting pump as the equipment that boosts, pressure size when boosting with pressure regulator valve control, the pressure size is made standard with digital pressure gauge during with the blowdown valve controlled hypotension, thereby reach time saving and energy saving, the work of efficient quick calibrating general purpose pressure gauge (oxygenous tensimeter).
The utility model is achieved through the following technical solutions:
A kind of tensimeter calibrating installation of making medium with air, comprise that air compressor machine, gas boosting pump, hand lift pump, pressure relief pipe and some interfaces, wherein, air compressor machine is connected with the gas boosting pump by two pipelines, wherein is provided with successively high-voltage regulator and air compressor machine output pressure control stop valve on a pipeline; Be connected with outlet pipe on the gas boosting pump, outlet pipe is provided with high-pressure stop valve; Each interface is connected with the outlet pipe of gas boosting pump respectively, and interface is provided with stop valve; Hand lifts and is connected with low pressure line on the pump, is provided with successively reversal valve, low-pressure regulator and low-pressure shutoff valve on this pipeline, and each interface is connected with this pipeline respectively; Pressure relief pipe is provided with blowdown valve, and each interface is connected with pressure relief pipe respectively.
Also be provided with filtrator (conventional design) on the pipeline between described air compressor machine and the high-voltage regulator.
Also be provided with pressure limiting valve on the pipeline between described air compressor machine output pressure control stop valve and the gas supercharge pump.
Described interface is for connection standard device/tested manometric interface.
The tensimeter calibrating installation of making medium with air of the present utility model, during use, standard and accredited tensimeter are connected on the corresponding interface, utilize the hydrostatic equilibrium principle, give simultaneously the pressurization of standard and accredited tensimeter, with the accredited parameters such as manometric indicating value of the method that contrasts whether in acceptability limit.The course of work is as follows: utilize air compressor machine output with the air of certain pressure to the gas boosting pump, the gas boosting pump work, the high pressure from the air pressurized to 0 of another outlet of air compressor machine～60MPa, pressure-air is by outlet pipe and each regulating and controlling valve, be delivered to simultaneously standard and tested tensimeter, whether the mode by precision pressure gauge or digital pressure gauge and the comparison of tested tensimeter satisfies the rules requirement with regard to examining and determine tested tensimeter, thereby judges whether it is qualified.Calibrating is during oxygen gauge, for safety, because make medium with air, so cleaned a little oxygen gauge just; During the calibrating pressure vacuum gauge, adopt low pressure line to add that reversal valve and hand lift the size that pump is regulated vacuum pressure, thereby realize the calibration operation of pressure vacuum gauge.
The tensimeter calibrating installation of making medium with air of the present utility model, with air compressor machine as driving source of the gas and the calibrating medium being provided, with the gas boosting pump as the equipment that boosts, pressure size when boosting with pressure regulator valve control, pressure size during with the blowdown valve controlled hypotension, make standard with digital pressure gauge, thereby reached time saving and energy saving, the purpose of the work of efficient quick calibrating general purpose pressure gauge (oxygenous tensimeter).
Description of drawings
Fig. 1 is syndeton synoptic diagram of the present utility model;
Fig. 2 is shape organigram of the present utility model.
Wherein, 1, air compressor machine; 2, filtrator; 3, high-voltage regulator; 4, air compressor machine output pressure control stop valve; 5, pressure limiting valve; 6, gas boosting pump; 7, high-pressure stop valve; 8, stop valve; 9, interface; 10, hand lifts pump; 11, reversal valve; 12, low-pressure regulator; 13, low-pressure shutoff valve; 14, blowdown valve; 15, air compressor machine delivery gauge.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of tensimeter calibrating installation of making medium with air, comprise that air compressor machine 1, gas boosting pump 6(output and input pressure are than being 80:1), hand lifts pump 10, pressure relief pipe and some interfaces 9, as shown in Figure 1, wherein, air compressor machine 1 is connected with gas boosting pump 6 by two pipelines, wherein is provided with successively filtrator 2, high-voltage regulator 3, air compressor machine output pressure control stop valve 4 and pressure limiting valve 5 on a pipeline; Be connected with outlet pipe on the gas boosting pump 6, outlet pipe is provided with high-pressure stop valve 7; Each interface 9 is connected with the outlet pipe of gas boosting pump 6 respectively, and interface 9 places are provided with stop valve 8; Hand lifts on the pump 10 and is connected with low pressure line, is provided with successively reversal valve 11(on this pipeline and is used for vacuum and low pressure conversion), low-pressure regulator 12 and low-pressure shutoff valve 13, each interface 9 is connected with this pipeline respectively; Pressure relief pipe is provided with blowdown valve 14, and each interface 9 is connected with pressure relief pipe respectively.
Described interface 9 is for connection standard device/tested manometric interface.
Of the present utility modelly make the tensimeter calibrating installation of medium with air, when actual production is made, other structure except air compressor machine all can be placed in the casing, and each interface and stop valve are spilt casing, handled easily, as shown in Figure 2.
Of the present utility modelly make the tensimeter calibrating installation of medium with air, during use, standard is connected on the corresponding interface with accredited tensimeter, concrete operations are as follows:
(1) method of operating of the general purpose pressure gauge (oxygenous tensimeter) of calibrating (0 ~ 60) MPa is as follows: at first installation code device and tested tensimeter are to the corresponding interface, close air compressor machine output pressure control stop valve 4, open air compressor machine 1 so that the air compressor machine output gas pressure (shows by air compressor machine delivery gauge 15 in (0.4 ~ 0.8) MPa scope, this is the conventional design of air compressor machine 1), close blowdown valve 14, close low-pressure shutoff valve 13, opening high pressure stop valve 7, open the stop valve 8 of standard and tested pressure gauge connection, all the other stop valves are closed, open the output valve of air compressor machine 1, rotate high-voltage regulator 3, slowly supercharging, in tested like this tensimeter and the standard onesize pressure has just been arranged, when standard indicating value to the first calibrating point, stop pressurization, rap tested tensimeter, record tested table and standard indicating value; Then then rotate high-voltage regulator 3, when standard indicating value to the second calibrating point, stop pressurization, rap tested tensimeter, record tested table and standard indicating value; Then the rest may be inferred until till the tested tensimeter full scale, withstand voltage 3min records corresponding indicating value; Close the output valve of air compressor machine 1, slowly open blowdown valve 14, when pressure drops to the immediate calibrating point of range, close blowdown valve 14, read indicating value and the record of standard and tested table; The remaining step-down calibrating tested table of point and standard indicating value are read in same operation.So just substantially finished manometric calibrating.
(2) calibrating pressure vacuum gauge and low pressure gauge method of operating are as follows: close high-pressure stop valve 7, close blowdown valve 14, open low-pressure shutoff valve 13, open the stop valve 8 of standard and tested pressure gauge connection, all the other stop valves are closed, calibrating is got to vacuum position to reversal valve 11 during pressure vacuum gauge, and then lifting up and down hand, to lift pump 10 just passable, and calibration method is identical with (1); During the calibrating low pressure gauge, it is just passable that reversal valve 11 is got to antivacuum position; Calibrating need not start to lift pump 10 during Micromanometer, and reversal valve 11 is got to antivacuum position, and it is just passable only to need to rotate low-pressure regulator 12.
Claims (3)
1. an air is made the tensimeter calibrating installation of medium, it is characterized in that: comprise that air compressor machine, gas boosting pump, hand lift pump, pressure relief pipe and some interfaces, wherein, air compressor machine is connected with the gas boosting pump by two pipelines, wherein is provided with successively high-voltage regulator and air compressor machine output pressure control stop valve on a pipeline; Be connected with outlet pipe on the gas boosting pump, outlet pipe is provided with high-pressure stop valve; Each interface is connected with the outlet pipe of gas boosting pump respectively, and interface is provided with stop valve; Hand lifts and is connected with low pressure line on the pump, is provided with successively reversal valve, low-pressure regulator and low-pressure shutoff valve on this pipeline, and each interface is connected with this pipeline respectively; Pressure relief pipe is provided with blowdown valve, and each interface is connected with pressure relief pipe respectively.
2. air according to claim 1 is made the tensimeter calibrating installation of medium, it is characterized in that: also be provided with filtrator on the pipeline between described air compressor machine and the high-voltage regulator.
3. air according to claim 1 is made the tensimeter calibrating installation of medium, it is characterized in that: also be provided with pressure limiting valve on the pipeline between described air compressor machine output pressure control stop valve and the gas supercharge pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458785 CN202793688U (en) | 2012-09-10 | 2012-09-10 | Pressure gage calibrating device with air as medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458785 CN202793688U (en) | 2012-09-10 | 2012-09-10 | Pressure gage calibrating device with air as medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793688U true CN202793688U (en) | 2013-03-13 |
Family
ID=47820933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458785 Expired - Fee Related CN202793688U (en) | 2012-09-10 | 2012-09-10 | Pressure gage calibrating device with air as medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793688U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353373A (en) * | 2013-07-12 | 2013-10-16 | 中国人民解放军91663部队 | Calibration device used for multi-medium spring-tube pressure gauge |
| CN103808460A (en) * | 2014-03-26 | 2014-05-21 | 北京航空航天大学 | Quick correcting system and method for static performance of pressure sensor |
| CN104266791A (en) * | 2014-08-06 | 2015-01-07 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| CN104568308A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Detection device, method and system of pressure sensor |
| CN109481976A (en) * | 2018-12-14 | 2019-03-19 | 洛阳理工学院 | A kind of filter |
| CN113029433A (en) * | 2021-03-09 | 2021-06-25 | 江南大学 | Pressure control system and method for gas medium for pressure instrument measurement accuracy detection |
-
2012
- 2012-09-10 CN CN 201220458785 patent/CN202793688U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353373A (en) * | 2013-07-12 | 2013-10-16 | 中国人民解放军91663部队 | Calibration device used for multi-medium spring-tube pressure gauge |
| CN104568308A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Detection device, method and system of pressure sensor |
| CN103808460A (en) * | 2014-03-26 | 2014-05-21 | 北京航空航天大学 | Quick correcting system and method for static performance of pressure sensor |
| CN104266791A (en) * | 2014-08-06 | 2015-01-07 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| CN104266791B (en) * | 2014-08-06 | 2017-01-25 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| CN109481976A (en) * | 2018-12-14 | 2019-03-19 | 洛阳理工学院 | A kind of filter |
| CN113029433A (en) * | 2021-03-09 | 2021-06-25 | 江南大学 | Pressure control system and method for gas medium for pressure instrument measurement accuracy detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202793688U (en) | Pressure gage calibrating device with air as medium | |
| CN102323158B (en) | High pressure safety valve detection system | |
| CN203298937U (en) | Valve test pressure source | |
| CN206990178U (en) | The automatic bulge test device of motor-driven valve | |
| CN106996403A (en) | A kind of fluid power plant and pressure method for accurately controlling pressure | |
| CN204422139U (en) | Fatigue tester for pressure instruments | |
| CN103867528A (en) | Integral hydraulic test table | |
| CN203809417U (en) | Multifunctional hydraulic test device | |
| CN203688152U (en) | Novel gas pressure reducer verifying device | |
| CN203929519U (en) | The static hydrostatic testing machine of a kind of high pressure | |
| CN106768058A (en) | One kind shut-off valve test device | |
| CN102680188B (en) | Air tightness detector for three-flap valve of puncture outfit | |
| CN103091037A (en) | On-line verifying device of pneumatic wide-range pressure transmitter | |
| CN206132380U (en) | Dual -purpose high -pressure protection valve check -up control cabinet of gas -liquid and device | |
| CN202928906U (en) | Hydraulic type measuring head of sclerometer | |
| CN203490133U (en) | Pressure pipe fitting bursting test machine | |
| CN205483398U (en) | Electronic pressure calibrator | |
| CN2833547Y (en) | High pressure detector | |
| CN203809415U (en) | Integral hydraulic test bed | |
| CN107387499A (en) | A kind of hydraulic means suitable for underwater sound emission Burning rate testing system | |
| CN206801988U (en) | A kind of aerodynamic device for accurately controlling pressure | |
| CN203809416U (en) | Hydraulic power source supply system | |
| CN206002248U (en) | A kind of 0.04MPa to 0.25MPa pressure gauge assay device | |
| CN203069369U (en) | Subway train brake valve testing device | |
| CN207728648U (en) | A kind of integrated hydraulic power unit of high pressure high cleanliness two |
Legal Events
| 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: 20130313 Termination date: 20150910 |
|
| EXPY | Termination of patent right or utility model |