CN208505525U - Pressure calibration field calibration device - Google Patents
Pressure calibration field calibration device Download PDFInfo
- Publication number
- CN208505525U CN208505525U CN201821173106.1U CN201821173106U CN208505525U CN 208505525 U CN208505525 U CN 208505525U CN 201821173106 U CN201821173106 U CN 201821173106U CN 208505525 U CN208505525 U CN 208505525U
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- Prior art keywords
- pressure
- regulating valve
- valve
- calibration
- pressure gauge
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Abstract
The utility model discloses a kind of pressure calibration field calibration devices, including pneumatic supply (1), gas pressurizer (2), safety-valve (3), the first regulating valve (4), the second regulating valve (5) and standard high-precision pressure gauge (6)；Pneumatic supply (1), gas pressurizer (2), safety-valve (3), the first regulating valve (4), the second regulating valve (5), standard high-precision pressure gauge (6) are sequentially connected, and standard high-precision pressure gauge (6) is connected with gas pressure checking table (7).The utility model can be realized the field calibration to the precision pressure gauge in pressure calibration device, improve measurement verification efficiency, reduce the spoilage of precision pressure gauge.
Description
Technical field
The utility model belongs to measurement and calibration equipment, and in particular to a kind of pressure calibration field calibration device.
Background technique
With the development of economy, society is increasing metering diversified demand, and especially in production, situ metrology technology obtains
To extensive use, it can not only reduce consumption, reduce cost, increase yield, improve benefit, but also can guarantee product
Quality, the competition for enhancing product.In fields such as Aeronautics and Astronautics, automobile productions, required when being assembled to the product of production into
Row pressure test, wherein pressure calibration is equipment more commonly used in device for pressure measurement, and internal main devices are precision
Pressure gauge.Therefore, for measurement verification/calibration of pressure calibration, really to the calibration of precision pressure gauge.
The mode that offline inspection is usually taken in pressure calibration at present (is sent to the meter through the related metrological service's authorization of country
Measuring mechanism laboratory) measurement and calibration is carried out, but since pressure gauge Off-line calibration/prover time is longer, production control will cause
It is certain to influence.Meanwhile the factors such as pitch are influenced by installing and dismounting and in transit, deposit pressure gauge performance change after calibration
The risk hidden danger of change.
Summary of the invention
The purpose of this utility model is to provide a kind of pressure calibration field calibration devices, can be realized to pressure checking
The field calibration of precision pressure gauge in platform device.Which not only increases measurement verification efficiency, and reduces accurate pressure
The spoilage of power table, improves economic benefit.
Realize the technical solution of the utility model aim are as follows: a kind of pressure calibration field calibration device, including gas
Potential source, gas pressurizer, safety-valve, the first regulating valve, the second regulating valve and standard high-precision pressure gauge；Pneumatic supply, gas
Voltage-stablizer, safety-valve, the first regulating valve, the second regulating valve, standard high-precision pressure gauge are sequentially connected, and standard high-precision is pressed
Power table is connected with gas pressure checking table.
First regulating valve makes range of regulation different from the open degree difference of two valves of the second regulating valve, the first regulating valve
It is pressure coarse adjustment valve, the pressure limit of adjusting is 0 ~ 40MPa, and the second regulating valve is fine adjustment valve, and the pressure limit of adjusting is 0
~5 Mpa。
The atmospheric pressure value that in 30s pneumatic supply can export the gas pressurizer reaches stable state.
Compared with prior art, remarkable advantage: (1) the utility model can be realized to pressure checking the utility model
The field calibration of precision pressure gauge in platform device improves measurement verification efficiency；(2) it does not run by installing and dismounting and in transit
The influence for the factors such as vibration of winnowing with a dustpan, reduces the spoilage of precision pressure gauge.
Detailed description of the invention
Fig. 1 is the pressure calibration field calibration device structure chart of the utility model.
Specific embodiment
In the pressure calibration field calibration device of the utility model, master gauge selection meets the high-precision of design requirement
It spends precision pressure gauge (digital pressure gauge), so that device is reached stable atmospheric pressure value by pneumatic supply and gas pressurizer, slowly beat
Opening shut-off valve makes manifold pressure value reach measurement request, the reading of contrast standard table and checklist after device atmospheric pressure value is stablized
Number, judges whether the metering performance of checklist meets JJG 49-2013 " elastic element precision pressure gauge and vacuum meter " calibrating rule
Pressure calibration field calibration is completed in requirement in journey.
Below with reference to embodiment and attached drawing, the utility model is described in further detail.
Pressure calibration field calibration device structure is as shown in Figure 1, pneumatic supply 1 is connected with gas pressurizer 2；Gas pressure stabilizing
Device 2 is connected with safety-valve 3；Safety-valve 3 is connected with the first regulating valve 4；First regulating valve 4 is connected with the second regulating valve 5；The
Two regulating valves 5 are connected with standard high-precision pressure gauge 6；Standard high-precision pressure gauge 6 is connected with gas pressure checking table 7.
In use, the switch of starting pneumatic supply 1 makes pneumatic supply 1 provide gas source, subsequent gas is exported from pneumatic supply 1 to gas
Voltage-stablizer 2 makes to be formed in the pipeline before safety-valve 3 and stablizes air pressure driving source, slowly beats by the adjustment effect of the component
The first regulating valve 4 and the second regulating valve 5 are opened, then first is adjusted according to the measured value that standard high-precision pressure gauge 6 is shown and adjusts
5 valve opening degree of valve 4 and the second regulating valve, value to be shown reaches the adjusting for stopping valve when parameter setting requires, to device gas
The reading of contrast standard high-precision pressure gauge 6 and gas pressure checking table 7, subsequently determines whether the Targets of checklist after pressure value is stablized
Pressure checking is completed in the requirement that whether can meet in JJG 49-2013 " elastic element precision pressure gauge and vacuum meter " vertification regulation
Platform field calibration, in a calibration process once there is the pressure voltage that pressure value is greater than setting, safety-valve 3 can lose heart automatically to be avoided
The generation of safety accident.
Claims (3)
1. a kind of pressure calibration field calibration device, it is characterised in that: including pneumatic supply (1), gas pressurizer (2), safety
Valve (3), the first regulating valve (4), the second regulating valve (5) and standard high-precision pressure gauge (6)；Pneumatic supply (1), gas pressurizer
(2), safety-valve (3), the first regulating valve (4), the second regulating valve (5), standard high-precision pressure gauge (6) are sequentially connected, standard
High-precision pressure gauge (6) is connected with gas pressure checking table (7).
2. pressure calibration field calibration device according to claim 1, it is characterised in that: the first regulating valve (4) and the
The open degree difference of two (5) two valves of regulating valve makes range of regulation different, and the first regulating valve (4) is pressure coarse adjustment valve,
The pressure limit of adjusting is 0 ~ 40MPa, and the second regulating valve (5) is fine adjustment valve, and the pressure limit of adjusting is 0 ~ 5 Mpa.
3. pressure calibration field calibration device according to claim 1, it is characterised in that: the gas pressurizer (2)
The atmospheric pressure value for exporting pneumatic supply in 30s reaches stable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173106.1U CN208505525U (en) | 2018-07-24 | 2018-07-24 | Pressure calibration field calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173106.1U CN208505525U (en) | 2018-07-24 | 2018-07-24 | Pressure calibration field calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505525U true CN208505525U (en) | 2019-02-15 |
Family
ID=65289958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821173106.1U Active CN208505525U (en) | 2018-07-24 | 2018-07-24 | Pressure calibration field calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521324A (en) * | 2020-05-12 | 2020-08-11 | 马鞍山市奈特仪表科技有限公司 | Vacuum pressure gauge indication value checking equipment and use method |
| CN114034430A (en) * | 2021-11-08 | 2022-02-11 | 成都国光电气股份有限公司 | Movable vacuum calibration device |
-
2018
- 2018-07-24 CN CN201821173106.1U patent/CN208505525U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521324A (en) * | 2020-05-12 | 2020-08-11 | 马鞍山市奈特仪表科技有限公司 | Vacuum pressure gauge indication value checking equipment and use method |
| CN111521324B (en) * | 2020-05-12 | 2021-11-02 | 马鞍山市奈特仪表科技有限公司 | Vacuum pressure gauge indication value checking equipment and use method |
| CN114034430A (en) * | 2021-11-08 | 2022-02-11 | 成都国光电气股份有限公司 | Movable vacuum calibration device |
| CN114034430B (en) * | 2021-11-08 | 2023-08-01 | 成都国光电气股份有限公司 | Portable vacuum calibration device |
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