CN106092440A - A kind of detection device for differential pressure transmitter - Google Patents
A kind of detection device for differential pressure transmitter Download PDFInfo
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- CN106092440A CN106092440A CN201610644037.7A CN201610644037A CN106092440A CN 106092440 A CN106092440 A CN 106092440A CN 201610644037 A CN201610644037 A CN 201610644037A CN 106092440 A CN106092440 A CN 106092440A
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- differential pressure
- pressure
- air
- pressure transmitter
- outfan
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of detection device for differential pressure transmitter, including air boost pump and three way cock, the compressed gas outfan of air boost pump is connected with a road terminal of three way cock, the another two-way output two-way source of the gas of three way cock, one road source of the gas is static pressure source of the gas path, another road is air pressure source of the gas path, the outfan of static pressure source of the gas path is connected with the low-pressure end of differential pressure transmitter, the input of adjustable static pressure is provided to differential pressure transmitter, the outfan of air pressure source of the gas path is connected with the high-pressure side of differential pressure transmitter, adjustable high input voltage is provided to differential pressure transmitter.The detection device for differential pressure transmitter of the present invention, according to the differential pressure pressure that the high-pressure side of concrete differential pressure transmitter is different with the offer of the operating pressure of low-pressure end, realize the accurate measurement of error under differential pressure transmitter working environment, have only to configure an air boost pump, greatly reduce installation cost, have a good application prospect.
Description
Technical field
The present invention relates to electric device maintenance technical field, be specifically related to a kind of detection device for differential pressure transmitter.
Background technology
At present, the existing detection method for differential pressure transmitter is usually and carries out it with reference to the mode of pressure transmitter
Detection, but, owing to structure and the pressure measurement mode of pressure transmitter exist completely different with differential pressure transmitter, concrete manifestation is such as
Under:
Pressure transmitter only one of which pressure measurement end, is the force value measuring a point, and differential pressure transmitter has two pressure measurement ends,
Need to measure pressure differential between 2, when using the detection device of pressure transmitter that differential pressure transmitter is detected, due to pressure
One or more pressure outputs of the detection device of power transmitter, can only export same value of pressure, therefore, and can only be by difference
The pressure output of the detection device of one pressure measurement termination pressure transmitter of pressure transmitter, another pressure measurement end is unsettled, quite
Differential pressure between the detection device of test atmospheric pressure and pressure transmitter, it can not represent differential pressure transporting under working environment
The differential pressure measurement of device, measuring accuracy is low, there is error, inaccurate detects differential pressure transmitter.
Summary of the invention
The invention aims to overcome the test device using pressure transmitter pressure transmitter to be detected, no
Can represent the differential pressure measurement of differential pressure transmitter under working environment, measuring accuracy is low, the problem that there is error.The present invention is used for
The detection device of differential pressure transmitter, according to the difference that the high-pressure side of concrete differential pressure transmitter is different with the offer of the operating pressure of low-pressure end
Pressure pressure, it is achieved to the accurate measurement of error under differential pressure transmitter working environment, it is only necessary to configure an air boost pump, greatly
Reduce installation cost, it is ensured that the accuracy of differential pressure transmitter detection, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of detection device for differential pressure transmitter, it is characterised in that: include air boost pump and three way cock, described air
The compressed gas outfan of booster pump is connected with a road terminal of three way cock, the another two-way output two-way of described three way cock
Source of the gas, a road source of the gas is static pressure source of the gas path, and another road is air pressure source of the gas path, the outfan of described static pressure source of the gas path and difference
The low-pressure end of pressure transmitter is connected, and provides the input of adjustable static pressure, described air pressure source of the gas path defeated to differential pressure transmitter
Go out and hold the high-pressure side with differential pressure transmitter to be connected, provide adjustable high input voltage to differential pressure transmitter.
Be previously described for the detection device of differential pressure transmitter, it is characterised in that: described static pressure source of the gas path include electromagnetic valve,
Air accumulator, vacuum solenoid valve, the second road terminal of described three way cock is by the compressed air input of electromagnetic valve with air accumulator
Being connected, described vacuum solenoid valve is arranged on air accumulator the pressure for regulating air accumulator output squeezing air, described gas storage
The compressed air outfan of tank, is connected with the low-pressure end of differential pressure transmitter as the outfan of static pressure source of the gas path.
Be previously described for the detection device of differential pressure transmitter, it is characterised in that: described air pressure source of the gas path include pressurize cylinder,
Pressure controller, fine tuning electromagnetic valve, coarse adjustment electromagnetic valve, voltage stabilizing cylinder, the 3rd road terminal of described three way cock and the pressure of pressurize cylinder
Contracting air input is connected, and the compressed air outfan of described pressurize cylinder is by the pressure controller being in parallel, fine tuning electromagnetism
Valve, coarse adjustment electromagnetic valve are connected with the compressed air input of voltage stabilizing cylinder, and the compressed air outfan of described voltage stabilizing cylinder, as gas
The outfan of pressurized air source path is connected with the high-pressure side of differential pressure transmitter.
It is previously described for the detection device of differential pressure transmitter, it is characterised in that: the compressed air outfan of described voltage stabilizing cylinder
It is also associated with normal barometer.
It is previously described for the detection device of differential pressure transmitter, it is characterised in that: described pressurize cylinder can be replaced pressurized cylinder.
It is previously described for the detection device of differential pressure transmitter, it is characterised in that: on the outfan of described air pressure source of the gas path
It is also associated with dredging empty valve.
The invention has the beneficial effects as follows: the detection device for differential pressure transmitter of the present invention, be provided with two-way source of the gas, one
Road is static pressure source of the gas path, and another road is air pressure source of the gas path, and static pressure source of the gas path provides adjustable quiet to differential pressure transmitter
Pressure input, air pressure source of the gas path provides adjustable high input voltage to differential pressure transmitter, according to the high pressure of concrete differential pressure transmitter
Hold the differential pressure pressure providing different with the operating pressure of low-pressure end, it is achieved to the accurate survey of error under differential pressure transmitter working environment
Amount, and, it is only necessary to configure an air boost pump, simple in construction, easily realize, greatly reduce installation cost, it is ensured that be poor
The accuracy of pressure transmitter detection, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the detection device for differential pressure transmitter of the present invention.
In accompanying drawing, the implication of labelling is as follows:
1: air boost pump；2: three way cock；3: electromagnetic valve；4: air accumulator；5: vacuum solenoid valve；6: pressurize cylinder；7: pressure control
Device processed；8: fine tuning electromagnetic valve；9: coarse adjustment electromagnetic valve；10: voltage stabilizing cylinder；11: normal barometer；12: dredge empty valve.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
As it is shown in figure 1, the detection device for differential pressure transmitter of the present invention, including air boost pump 1 and three way cock
2, the compressed gas outfan of air boost pump 1 is connected with a road terminal of three way cock 2, another the two of described three way cock 2
Road output two-way source of the gas, a road source of the gas is static pressure source of the gas path, and another road is air pressure source of the gas path, described static pressure source of the gas path
Outfan is connected with the low-pressure end (static pressure end) of differential pressure transmitter, provides the input of adjustable static pressure, institute to differential pressure transmitter
The high-pressure side of the outfan and differential pressure transmitter of stating air pressure source of the gas path is connected, and provides adjustable high pressure to differential pressure transmitter
Input, the outfan of described air pressure source of the gas path is also associated with dredge empty valve 12, described thin empty valve 12, before work is tested,
Discharge the air connected in pipeline.
Described static pressure source of the gas path includes electromagnetic valve 3, air accumulator 4, vacuum solenoid valve 5, second tunnel of described three way cock 2
Terminal is connected by the compressed air input of electromagnetic valve 3 with air accumulator 4, and described vacuum solenoid valve 5 is arranged on air accumulator 4
For regulating the pressure of air accumulator output squeezing air, the compressed air outfan of described air accumulator 4, as static pressure source of the gas path
The low-pressure end of outfan and differential pressure transmitter be connected.
Described air pressure source of the gas path includes pressurize cylinder 6, pressure controller 7, fine tuning electromagnetic valve 8, coarse adjustment electromagnetic valve 9, voltage stabilizing
Cylinder 10, the 3rd road terminal of described three way cock 2 is connected with the compressed air input of pressurize cylinder 6, the pressure of described pressurize cylinder 6
Contracting air outfan is empty with the compression of voltage stabilizing cylinder 10 by the pressure controller 7 being in parallel, fine tuning electromagnetic valve 8, coarse adjustment electromagnetic valve 9
Gas input is connected, the compressed air outfan of described voltage stabilizing cylinder 10, and the outfan as air pressure source of the gas path becomes with differential pressure
The high-pressure side sending device is connected.
The compressed air outfan of described voltage stabilizing cylinder 10 is also associated with normal barometer 11, is used for showing that voltage stabilizing cylinder 10 exports
Compressed-air actuated pressure, is coordinated by pressure controller 7, fine tuning electromagnetic valve 8, coarse adjustment electromagnetic valve 9 and realizes the regulation of pressure, carefully
Adjust electromagnetic valve 8, coarse adjustment electromagnetic valve 9 to be used for realizing fine tuning or going out coarse adjustment pressure controller 7, be used for making regulation enter voltage stabilizing cylinder 10
Compressed-air actuated pressure.
Described pressurize cylinder 6 can be replaced pressurized cylinder, it is simple to makes compressed air have higher pressure.
The detection device for differential pressure transmitter of the present invention, operation principle is as follows: by detected differential pressure transmitter
Static pressure end is installed on the outfan of static pressure source of the gas path, and high-pressure side is installed on the outfan of air pressure source of the gas path, supercharging air
Its loop is divided into two-way by accessing three way cock 2 by pump 1, and a road is responsible for providing the static pressure end of detected differential pressure transmitter
Pressure exports；Another road provides pressure output to the high-pressure side of detected differential pressure transmitter, when air boost pump 1 is opened,
Static pressure source of the gas path inflates to air accumulator 4 by electromagnetic valve for adjusting 3, and the vacuum solenoid valve 3 of the other end of air accumulator 4 is used for regulating
The pressure output of the outfan of static pressure source of the gas path；And the operation principle of air pressure source of the gas path is: air boost pump 1 is provided
Pressure by after pressure boost, regulates coarse adjustment electromagnetic valve 9 and fine tuning electromagnetic valve 8 through pressure controller 6 by supercharging or pressurize cylinder
Rear output is to voltage stabilizing after voltage stabilizing cylinder 10, then exports through voltage stabilizing cylinder 10, it is ensured that reliable and stable, the detected differential pressure transporting of its pressure
The pressure that the static pressure end of device, high-pressure side are provided, all can regulate, it is simple to use different working environments, improves the standard of detection
Really property.
In sum, the detection device for differential pressure transmitter of the present invention, it is provided with two-way source of the gas, a road is static pressure gas
Source path, another road is air pressure source of the gas path, and static pressure source of the gas path provides the input of adjustable static pressure, air pressure to differential pressure transmitter
Source of the gas path provides adjustable high input voltage to differential pressure transmitter, according to the high-pressure side of concrete differential pressure transmitter and low-pressure end
Operating pressure provides different differential pressure pressure, it is achieved to the accurate measurement of error under differential pressure transmitter working environment, and, only need
Configure an air boost pump, simple in construction, easily realize, greatly reduce installation cost, it is ensured that differential pressure transmitter detects
Accuracy, have a good application prospect.
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.The technical staff of the industry should
Understanding, the present invention is not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and description is former
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.Claimed scope is by appending claims and equivalent circle thereof
Fixed.
Claims (6)
1. the detection device for differential pressure transmitter, it is characterised in that: include air boost pump and three way cock, described sky
The compressed gas outfan of gas booster pump is connected with a road terminal of three way cock, the another two-way output two of described three way cock
Road source of the gas, a road source of the gas is static pressure source of the gas path, and another road is air pressure source of the gas path, the outfan of described static pressure source of the gas path with
The low-pressure end of differential pressure transmitter is connected, and provides the input of adjustable static pressure to differential pressure transmitter, described air pressure source of the gas path
Outfan is connected with the high-pressure side of differential pressure transmitter, provides adjustable high input voltage to differential pressure transmitter.
Detection device for differential pressure transmitter the most according to claim 1, it is characterised in that: described static pressure source of the gas path
Including electromagnetic valve, air accumulator, vacuum solenoid valve, the second road terminal of described three way cock is by the compression of electromagnetic valve with air accumulator
Air input is connected, and described vacuum solenoid valve is arranged on air accumulator the pressure for regulating air accumulator output squeezing air
Power, the compressed air outfan of described air accumulator, as the low-pressure end phase of outfan and the differential pressure transmitter of static pressure source of the gas path
UNICOM.
Detection device for differential pressure transmitter the most according to claim 1, it is characterised in that: described air pressure source of the gas path
Including pressurize cylinder, pressure controller, fine tuning electromagnetic valve, coarse adjustment electromagnetic valve, voltage stabilizing cylinder, the 3rd road terminal of described three way cock with
The compressed air input of pressurize cylinder is connected, and the compressed air outfan of described pressurize cylinder is by the Stress control being in parallel
Device, fine tuning electromagnetic valve, coarse adjustment electromagnetic valve are connected with the compressed air input of voltage stabilizing cylinder, and the compressed air of described voltage stabilizing cylinder is defeated
Go out end, be connected with the high-pressure side of differential pressure transmitter as the outfan of air pressure source of the gas path.
Detection device for differential pressure transmitter the most according to claim 3, it is characterised in that: the compression of described voltage stabilizing cylinder
Air outfan is also associated with normal barometer.
Detection device for differential pressure transmitter the most according to claim 3, it is characterised in that: described pressurize cylinder is replaceable
For pressurized cylinder.
Detection device for differential pressure transmitter the most according to claim 1, it is characterised in that: described air pressure source of the gas path
Outfan on be also associated with dredging empty valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644037.7A CN106092440B (en) | 2016-08-09 | 2016-08-09 | A kind of detection device for differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644037.7A CN106092440B (en) | 2016-08-09 | 2016-08-09 | A kind of detection device for differential pressure transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN106092440A true CN106092440A (en) | 2016-11-09 |
| CN106092440B CN106092440B (en) | 2019-03-05 |
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| CN201610644037.7A Active CN106092440B (en) | 2016-08-09 | 2016-08-09 | A kind of detection device for differential pressure transmitter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063563A (en) * | 2017-03-30 | 2017-08-18 | 江苏方天电力技术有限公司 | A kind of multrirange pressure-detecting device of solenoid valve control |
| CN107246933A (en) * | 2017-08-08 | 2017-10-13 | 江苏方天电力技术有限公司 | A kind of total head device for pressure measurement and method based on absolute pressure sensor |
| CN108151962A (en) * | 2017-12-15 | 2018-06-12 | 芜湖致通汽车电子有限公司 | A kind of method and its testing machine of positive-pressure type simulation vacuum test |
| CN112556926A (en) * | 2020-12-11 | 2021-03-26 | 上海市计量测试技术研究院 | Automatic detection device and detection method for static pressure performance of differential pressure transmitter |
| CN116558944A (en) * | 2023-07-12 | 2023-08-08 | 吉林大学 | Diamond-based anvil cell air film driving rapid supercharging device |
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| JPH01210835A (en) * | 1988-02-18 | 1989-08-24 | Toshiba Corp | Calibrating device for differential pressure transmitter |
| CN202928741U (en) * | 2012-11-08 | 2013-05-08 | 林华 | Static pressure drift detection device for differential pressure transmitter |
| CN103234696A (en) * | 2013-04-26 | 2013-08-07 | 南京化工职业技术学院 | Differential pressure transmitter checking instrument |
| CN103472193A (en) * | 2013-09-30 | 2013-12-25 | 河南省日立信股份有限公司 | Quick tester for transmitter laboratory |
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| CN204788790U (en) * | 2015-07-14 | 2015-11-18 | 天津博益气动股份有限公司 | Static performance detection device of differential pressure sensor |
| CN205940868U (en) * | 2016-08-09 | 2017-02-08 | 江苏方天电力技术有限公司 | Detection apparatus for be used for differential pressure transmitter |
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2016
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Patent Citations (8)
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| JPH01210835A (en) * | 1988-02-18 | 1989-08-24 | Toshiba Corp | Calibrating device for differential pressure transmitter |
| CN202928741U (en) * | 2012-11-08 | 2013-05-08 | 林华 | Static pressure drift detection device for differential pressure transmitter |
| CN103234696A (en) * | 2013-04-26 | 2013-08-07 | 南京化工职业技术学院 | Differential pressure transmitter checking instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063563A (en) * | 2017-03-30 | 2017-08-18 | 江苏方天电力技术有限公司 | A kind of multrirange pressure-detecting device of solenoid valve control |
| CN107246933A (en) * | 2017-08-08 | 2017-10-13 | 江苏方天电力技术有限公司 | A kind of total head device for pressure measurement and method based on absolute pressure sensor |
| CN108151962A (en) * | 2017-12-15 | 2018-06-12 | 芜湖致通汽车电子有限公司 | A kind of method and its testing machine of positive-pressure type simulation vacuum test |
| CN112556926A (en) * | 2020-12-11 | 2021-03-26 | 上海市计量测试技术研究院 | Automatic detection device and detection method for static pressure performance of differential pressure transmitter |
| CN116558944A (en) * | 2023-07-12 | 2023-08-08 | 吉林大学 | Diamond-based anvil cell air film driving rapid supercharging device |
| CN116558944B (en) * | 2023-07-12 | 2023-11-10 | 吉林大学 | Diamond-based anvil cell air film driving rapid supercharging device |
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|---|---|
| CN106092440B (en) | 2019-03-05 |
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