CN205940868U - Detection apparatus for be used for differential pressure transmitter - Google Patents
Detection apparatus for be used for differential pressure transmitter Download PDFInfo
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- CN205940868U CN205940868U CN201620853757.XU CN201620853757U CN205940868U CN 205940868 U CN205940868 U CN 205940868U CN 201620853757 U CN201620853757 U CN 201620853757U CN 205940868 U CN205940868 U CN 205940868U
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- differential pressure
- pressure
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- pressure transmitter
- outfan
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 230000003068 static effect Effects 0.000 claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009530 blood pressure measurement Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a detection apparatus for be used for differential pressure transmitter, including air booster pump and three way connection, the compressed gas output of air booster pump and three way connection's terminal looks UNICOM of the same kind, three way connection's two way air supplies of two tunnel outputs in addition, the air supply is static pressure air supply route all the way, another way is atmospheric pressure air supply route, the output of static pressure air supply route and differential pressure transmitter's low -pressure end looks UNICOM, provide the input of adjustable static pressure for differential pressure transmitter, the output of atmospheric pressure air supply route and differential pressure transmitter's high -pressure side looks UNICOM, provide adjustable high pressure input for differential pressure transmitter. The utility model discloses a detection apparatus for be used for differential pressure transmitter provides different differential pressure pressure according to the operating pressure of concrete differential pressure transmitter's high -pressure side and low -pressure end, realizes the precision measurement to error under the differential pressure transmitter operational environment, only needs air booster pump of configuration, has greatly reduced the installation cost, has good application prospect.
Description
Technical field
This utility model is related to electric device maintenance technical field and in particular to a kind of detection for differential pressure transmitter fills
Put.
Background technology
At present, the existing detection method for the differential pressure transmitter usually mode with reference to pressure transmitter is carried out to it
Detection, but, because the structure of pressure transmitter and pressure measurement mode and differential pressure transmitter exist completely different, concrete manifestation is such as
Under：
Pressure transmitter only one of which pressure measurement end, is the pressure value of one point of measurement, and differential pressure transmitter has two surveys
Pressure side, needs to measure pressure differential between 2 points, when differential pressure transmitter being detected using the detection means of pressure transmitter, by
In one or more pressure outputs of the detection means of pressure transmitter, same value of pressure can only be exported, therefore, can only
One pressure measurement of differential pressure transmitter is terminated the pressure output of the detection means of pressure transmitter, another pressure measurement end is hanging,
Be equivalent to the differential pressure between test atmospheric pressure and the detection means of pressure transmitter, it can not represent differential pressure under working environment
The differential pressure measurement of transmitter, measuring accuracy is low, there is error, inaccurate differential pressure transmitter is detected.
Utility model content
The purpose of this utility model is to overcome the test device using pressure transmitter that pressure transmitter is examined
Survey it is impossible to represent the differential pressure measurement of differential pressure transmitter under working environment, measuring accuracy is low, there is error.This practicality
The new detection means for differential pressure transmitter, carries according to the high-pressure side of concrete differential pressure transmitter and the operating pressure of low-pressure end
For different differential pressure pressure, realize the accurate measurement to error under differential pressure transmitter working environment it is only necessary to configure an air
Booster pump, greatly reduces installation cost it is ensured that the accuracy of differential pressure transmitter detection, has a good application prospect.
In order to achieve the above object, this utility model be employed technical scheme comprise that：
A kind of detection means for differential pressure transmitter it is characterised in that：Including air boost pump and three way cock, described
The compressed gas outfan of air boost pump is connected with a road terminal of three way cock, the another two-way output of described three way cock
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, the outfan of described static pressure source of the gas path
It is connected with the low-pressure end of differential pressure transmitter, provide adjustable static pressure input, described air pressure source of the gas path to differential pressure transmitter
Outfan be connected with the high-pressure side of differential pressure transmitter, to differential pressure transmitter provide adjustable high input voltage.
Be previously described for the detection means 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 passes through the compressed air input of electromagnetic valve and air accumulator
It is connected, described vacuum solenoid valve is arranged on air accumulator and is used for adjusting the pressure of air accumulator output squeezing air, described gas storage
The compressed air outfan of tank, outfan and the low-pressure end of differential pressure transmitter as static pressure source of the gas path are connected.
Be previously described for the detection means 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 passes through pressure controller, the fine tuning electromagnetism being in parallel
The compressed air input of valve, coarse adjustment electromagnetic valve and voltage stabilizing cylinder is connected, 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.
Be previously described for the detection means 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.
Be previously described for the detection means of differential pressure transmitter it is characterised in that：Described pressurize cylinder can be replaced pressurized cylinder.
Be previously described for the detection means 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 sky valve.
The beneficial effects of the utility model are：Detection means for differential pressure transmitter of the present utility model, is provided with two
Road source of the gas, a 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 to differential pressure transmitter can
The static pressure input adjusting, air pressure source of the gas path provides adjustable high input voltage to differential pressure transmitter, according to concrete differential pressure transporting
The high-pressure side of device provides different differential pressure pressure with the operating pressure of low-pressure end, realizes to error under differential pressure transmitter working environment
Accurate measurement, and it is only necessary to one air boost pump of configuration, structure is simple, easily realizes, greatly reduces device
This, it is ensured that the accuracy of differential pressure transmitter detection, has a good application prospect.
Brief description
Fig. 1 is the structural representation of the detection means for differential pressure transmitter of the present utility model.
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
Force controller；8：Fine tuning electromagnetic valve；9：Coarse adjustment electromagnetic valve；10：Voltage stabilizing cylinder；11：Normal barometer；12：Dredge sky valve.
Specific embodiment
Below in conjunction with Figure of description, this utility model is further described.
As shown in figure 1, the detection means for differential pressure transmitter of the present utility model, including air boost pump 1 and threeway
Joint 2, the compressed gas outfan of air boost pump 1 is connected with a road terminal of three way cock 2, described three way cock's 2
Another two-way 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, and described static pressure source of the gas leads to
The outfan on road and the low-pressure end of differential pressure transmitter（Static pressure end）It is connected, provide adjustable static pressure defeated to differential pressure transmitter
Enter, the outfan of described air pressure source of the gas path is connected with the high-pressure side of differential pressure transmitter, provide scalable to differential pressure transmitter
High input voltage, the outfan of described air pressure source of the gas path is also associated with dredge sky valve 12, described thin sky valve 12, for work survey
Before examination, discharge the air in connecting pipe.
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 and air accumulator 4, and described vacuum solenoid valve 5 is arranged on air accumulator 4
For adjusting 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
Outfan be connected with the low-pressure end of differential pressure transmitter.
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 and the compressed air input of pressurize cylinder 6 are connected, the pressure of described pressurize cylinder 6
Contracting air outfan passes through pressure controller 7, the compression sky of fine tuning electromagnetic valve 8, coarse adjustment electromagnetic valve 9 and voltage stabilizing cylinder 10 being in parallel
Gas input is connected, the compressed air outfan of described voltage stabilizing cylinder 10, and outfan and differential pressure as air pressure source of the gas path become
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, for showing that voltage stabilizing cylinder 10 exports
The pressure of compressed air, coordinates, by pressure controller 7, fine tuning electromagnetic valve 8, coarse adjustment electromagnetic valve 9, the regulation realizing pressure, carefully
Adjust electromagnetic valve 8, coarse adjustment electromagnetic valve 9 to be used for realizing fine tuning or go out coarse adjustment pressure controller 7, be used for making regulation enter voltage stabilizing cylinder 10
Compressed air pressure.
Described pressurize cylinder 6 can be replaced pressurized cylinder, is easy to make compressed air have higher pressure.
Detection means for differential pressure transmitter of the present utility model, operation principle is as follows：By detected differential pressure transporting
The static pressure end of device 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, air
Its loop is divided into two-way by accessing three way cock 2 by booster pump 1, and the static pressure end to detected differential pressure transmitter is responsible on a road
Pressure output is provided；Another road provides pressure output to the high-pressure side of detected differential pressure transmitter, when air boost pump 1 is opened
When, static pressure source of the gas path is inflated 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
The pressure output of the outfan of regulating static source of the gas path；And the operation principle of air pressure source of the gas path is：Air boost pump 1 is carried
For pressure after supercharging or pressurize cylinder are by pressure boost, adjust coarse adjustment electromagnetic valve 9 and fine tuning electromagnetism through pressure controller 6
Export voltage stabilizing after voltage stabilizing cylinder 10 after valve 8, then export reliable and stable, the detected differential pressure it is ensured that its pressure through voltage stabilizing cylinder 10
The pressure that the static pressure end of transmitter, high-pressure side are provided, all can be adjusted, and be easy to use different working environments, improve detection
Accuracy.
In sum, the detection means for differential pressure transmitter of the present utility model, is provided with two-way source of the gas, and a road is quiet
Pressurized air source path, another road is air pressure source of the gas path, and static pressure source of the gas path provides adjustable static pressure input to differential pressure transmitter,
Air pressure source of the gas path provides adjustable high input voltage to differential pressure transmitter, according to high-pressure side and the low pressure of concrete differential pressure transmitter
The operating pressure at end provides different differential pressure pressure, realizes the accurate measurement to error under differential pressure transmitter working environment, and,
Only need to configure an air boost pump, structure is simple, easily realize, greatly reduce installation cost it is ensured that differential pressure transmitter
The accuracy of detection, has a good application prospect.
Of the present utility model ultimate principle, principal character and advantage have been shown and described above.The technical staff of the industry
It should be appreciated that this utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally
The principle of utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has various change
And improvement, these changes and improvements both fall within the range of claimed this utility model.This utility model claims scope
By appending claims and its equivalent thereof.
Claims (6)
1. a kind of detection means for differential pressure transmitter it is characterised in that：Including 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 be static pressure source of the gas path, another road be 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 adjustable static pressure input 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.
2. the detection means for differential pressure transmitter 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 passes through the compression of electromagnetic valve and air accumulator
Air input is connected, and described vacuum solenoid valve is arranged on air accumulator and is used for adjusting the pressure of 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.
3. the detection means for differential pressure transmitter 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 passes through the Stress control being in parallel
Device, the compressed air input of fine tuning electromagnetic valve, coarse adjustment electromagnetic valve and voltage stabilizing cylinder are connected, and the compressed air of described voltage stabilizing cylinder is defeated
Go out end, outfan and the high-pressure side of differential pressure transmitter as air pressure source of the gas path are connected.
4. the detection means for differential pressure transmitter according to claim 3 it is characterised in that：The compression of described voltage stabilizing cylinder
Air outfan is also associated with normal barometer.
5. the detection means for differential pressure transmitter according to claim 3 it is characterised in that：Described pressurize cylinder is replaceable
For pressurized cylinder.
6. the detection means for differential pressure transmitter according to claim 1 it is characterised in that：Described air pressure source of the gas path
Outfan on be also associated with dredge sky valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853757.XU CN205940868U (en) | 2016-08-09 | 2016-08-09 | Detection apparatus for be used for differential pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853757.XU CN205940868U (en) | 2016-08-09 | 2016-08-09 | Detection apparatus for be used for differential pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205940868U true CN205940868U (en) | 2017-02-08 |
Family
ID=57922822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853757.XU Active CN205940868U (en) | 2016-08-09 | 2016-08-09 | Detection apparatus for be used for differential pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205940868U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092440A (en) * | 2016-08-09 | 2016-11-09 | 江苏方天电力技术有限公司 | A kind of detection device for differential pressure transmitter |
| CN111076863A (en) * | 2020-03-04 | 2020-04-28 | 东营职业学院 | Intelligent differential pressure transmitter calibration system |
| CN111442876A (en) * | 2020-01-03 | 2020-07-24 | 武汉钢铁有限公司 | Intelligent transmitter checking system |
| CN117968937A (en) * | 2024-04-01 | 2024-05-03 | 沈阳仪表科学研究院有限公司 | Differential pressure sensor testing device |
-
2016
- 2016-08-09 CN CN201620853757.XU patent/CN205940868U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092440A (en) * | 2016-08-09 | 2016-11-09 | 江苏方天电力技术有限公司 | A kind of detection device for differential pressure transmitter |
| CN106092440B (en) * | 2016-08-09 | 2019-03-05 | 江苏方天电力技术有限公司 | A kind of detection device for differential pressure transmitter |
| CN111442876A (en) * | 2020-01-03 | 2020-07-24 | 武汉钢铁有限公司 | Intelligent transmitter checking system |
| CN111076863A (en) * | 2020-03-04 | 2020-04-28 | 东营职业学院 | Intelligent differential pressure transmitter calibration system |
| CN117968937A (en) * | 2024-04-01 | 2024-05-03 | 沈阳仪表科学研究院有限公司 | Differential pressure sensor testing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |