CN111076863A - Intelligent differential pressure transmitter calibration system - Google Patents
Intelligent differential pressure transmitter calibration system Download PDFInfo
- Publication number
- CN111076863A CN111076863A CN202010143356.6A CN202010143356A CN111076863A CN 111076863 A CN111076863 A CN 111076863A CN 202010143356 A CN202010143356 A CN 202010143356A CN 111076863 A CN111076863 A CN 111076863A
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- Prior art keywords
- pressure
- pipeline
- differential pressure
- air
- transmitter
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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
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Abstract
The invention discloses an intelligent differential pressure transmitter calibration system which comprises an air source conveying device, a differential pressure transmitter and a pressure calibration device, wherein the air source conveying device consists of an air compressor and an air main pipeline with an air source switch pressure reducing valve, a three-way valve is arranged on the air pipeline, the air main pipeline is divided into a high-pressure conveying pipeline and a low-pressure conveying pipeline by the three-way valve, a pressure valuator and a pressure calibration instrument are respectively arranged on the high-pressure conveying pipeline and the low-pressure conveying pipeline, and the tail ends of the high-pressure conveying pipeline and the low-pressure conveying pipeline are respectively connected with a high-pressure input port and a low-pressure input.
Description
Technical Field
The invention relates to a checking and detecting device, in particular to an intelligent differential pressure transmitter checking system.
Background
At present, the verification of the intelligent differential pressure transmitter is mostly carried out by a professional organization or assembled by a pressure verification table, a calibrator, a standard pressure gauge and a plurality of connecting pieces. In the prior art, the former needs to be checked to waste manpower and time, and the latter wastes time and labor, is complex to operate and has poor checking precision, can cause serious accidents in case of slight negligence, and is not beneficial to safe, rapid and efficient work.
Disclosure of Invention
The invention aims to provide an intelligent differential pressure transmitter calibration system aiming at the defects in the prior art.
The technical scheme of the invention is that the intelligent differential pressure transmitter calibration system comprises an air source conveying device, a differential pressure transmitter and a pressure calibration device, wherein the air source conveying device consists of an air compressor and an air main pipeline with an air source switch pressure reducing valve, a three-way valve is arranged on the air pipeline, the air main pipeline is divided into a high-pressure conveying pipeline and a low-pressure conveying pipeline by the three-way valve, a pressure valuator and a pressure calibration instrument are respectively arranged on the high-pressure conveying pipeline and the low-pressure conveying pipeline, and the tail ends of the high-pressure conveying pipeline and the low-pressure conveying pipeline are respectively connected with a high-pressure input port and a low-pressure.
The preferable technical scheme is as follows: and a pressure output module of the differential pressure transmitter is connected with the manual operator.
The pressure calibrator in the preferred technical scheme is a HB600F2 pressure calibrator,
the model number of the differential pressure transmitter in the preferred technical scheme and the low preferred technical scheme is EJA110A-EMS5A-92DN, and the manual operator is a hart475 manual operator.
The end of the pressure conveying pipeline is provided with a connecting pipeline with a balance valve
Compared with the prior art, the invention has the following advantages: reasonable in design, simple structure, action are reliable, the check-up precision is high, the practicality is strong. The device saves manpower and time, is simple and convenient to operate, is safe to use, and is beneficial to safe, rapid and efficient work.
Drawings
FIG. 1 is a schematic structural view of the present invention; the pressure tester comprises an air compressor 1, an air source switch 2, a pressure reducing valve 3, a three-way valve 4, a pressure valuator 5, a pressure valuator 6, a pressure calibrator 7, a pressure calibrator 8, an air valve 9, an air valve 10, a balance valve 11, a differential pressure transmitter 12, a differential pressure transmitter display meter 13, a pressure transmission output module 14 and a manual operator 15.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more, unless specifically defined otherwise, as shown in fig. 1. The utility model provides an intelligence differential pressure transmitter check-up system, including air supply conveyor, differential pressure transmitter 12, pressure check-up device, air supply conveyor comprises air compressor 1 and the air main line that has air source switch 2 relief pressure valve 3, be provided with three-way valve 4 on the air line, three-way valve 4 falls into high pressure pipeline and low pressure pipeline to the air main line, be provided with pressure valuator 5 and pressure check gauge 6 at high pressure pipeline, low pressure pipeline is provided with pressure check gauge 7, pressure check gauge 8, high pressure pipeline and low pressure pipeline's end respectively with differential pressure transmitter 12's high pressure input port and low pressure input port connection. The pressure output module of differential pressure transmitter 12 is connected to hand operator 15. When the pressure calibrator is an HB600F2 pressure calibrator, the model of the differential pressure transmitter is EJA110A-EMS5A-92DN, the manual operator is a hart475 manual operator, and the tail ends of the high-pressure transmission pipeline and the low-pressure transmission pipeline are provided with the connecting pipeline with the balance valve 11. when the pressure calibrator is used, the tested differential pressure transmitter 12 is placed on a fixed frame, the manual operator 15 is connected to the signal output end of the pressure transmission output module 14 of the tested differential pressure transmitter 12 in an electrified way, the high-pressure transmission pipeline and the low-pressure transmission pipeline are connected with the pressure inlet end of the tested differential pressure transmitter 12, at the moment, after the compressor 1 passes through the air source switch 2 and the pressure reducing valve 3, the pressure calibrator 5, the pressure calibrator 6, the pressure calibrator 7 and the pressure calibrator 8 respectively adjust the pressure through the air valve 9 and the air valve 10 to reach a set value, at the moment, display values can be read from the pressure calibrator 7 and the pressure calibrator, the difference between the two values is calculated and compared with the display number of differential pressure transmitter display table 13 of differential pressure transmitter 12. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an intelligence differential pressure transmitter check-up system, characterized by, includes air supply conveyor, differential pressure transmitter, pressure check-up device, and air supply conveyor comprises air compressor and the air main line that has air supply switch relief pressure valve, is provided with the three-way valve on the air line, the three-way valve falls into high pressure pipeline and low pressure pipeline to the air main line, is provided with pressure valuator and pressure check-up appearance on high pressure pipeline and low pressure pipeline respectively, and high pressure pipeline and low pressure pipeline's end respectively with differential pressure transmitter's high pressure input port and low pressure input port connection.
2. The system of claim 1, wherein a pressure output module of the differential pressure transmitter is coupled to the hand operator.
3. The intelligent differential pressure transmitter calibration system of claim 1, wherein the pressure calibrator is a HB600F2 pressure calibrator.
4. The system of claim 2, wherein the differential pressure transmitter is of the type EJA110A-EMS5A-92DN, and the manual operator is a hart475 manual operator.
5. The verification system of an intelligent differential pressure transmitter as claimed in claim 1, wherein connecting lines with balancing valves are provided at the ends of the high pressure delivery line and the low pressure delivery line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143356.6A CN111076863A (en) | 2020-03-04 | 2020-03-04 | Intelligent differential pressure transmitter calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143356.6A CN111076863A (en) | 2020-03-04 | 2020-03-04 | Intelligent differential pressure transmitter calibration system |
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| CN111076863A true CN111076863A (en) | 2020-04-28 |
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| CN202010143356.6A Pending CN111076863A (en) | 2020-03-04 | 2020-03-04 | Intelligent differential pressure transmitter calibration system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504642A (en) * | 2020-11-09 | 2021-03-16 | 芜湖天航装备技术有限公司 | Test bed for adjusting device and manufacturing and performance test method thereof |
| CN113340527A (en) * | 2021-05-31 | 2021-09-03 | 新疆维吾尔自治区计量测试研究院 | Differential pressure transmitter verification system |
| CN113432781A (en) * | 2021-04-24 | 2021-09-24 | 中国测试技术研究院流量研究所 | Static pressure characteristic test and effective area verification method for piston pressure gauge of differential pressure transmitter |
| CN114235274A (en) * | 2021-12-14 | 2022-03-25 | 泰安佳业环保科技有限公司 | Pressure and differential pressure checking system and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112504642A (en) * | 2020-11-09 | 2021-03-16 | 芜湖天航装备技术有限公司 | Test bed for adjusting device and manufacturing and performance test method thereof |
| CN113432781A (en) * | 2021-04-24 | 2021-09-24 | 中国测试技术研究院流量研究所 | Static pressure characteristic test and effective area verification method for piston pressure gauge of differential pressure transmitter |
| CN113432781B (en) * | 2021-04-24 | 2023-03-10 | 中国测试技术研究院流量研究所 | Method for measuring static pressure characteristic of differential pressure transmitter and transmitting quantity value in verification process of piston type pressure gauge |
| CN113340527A (en) * | 2021-05-31 | 2021-09-03 | 新疆维吾尔自治区计量测试研究院 | Differential pressure transmitter verification system |
| CN114235274A (en) * | 2021-12-14 | 2022-03-25 | 泰安佳业环保科技有限公司 | Pressure and differential pressure checking system and method |
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Application publication date: 20200428 |