CN103234696A - Differential pressure transmitter checking instrument - Google Patents
Differential pressure transmitter checking instrument Download PDFInfo
- Publication number
- CN103234696A CN103234696A CN2013101487053A CN201310148705A CN103234696A CN 103234696 A CN103234696 A CN 103234696A CN 2013101487053 A CN2013101487053 A CN 2013101487053A CN 201310148705 A CN201310148705 A CN 201310148705A CN 103234696 A CN103234696 A CN 103234696A
- Authority
- CN
- China
- Prior art keywords
- pressure transmitter
- differential pressure
- solenoid valve
- valve
- hydraulic pump
- 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.)
- Pending
Links
- 230000001702 transmitter Effects 0.000 title claims abstract description 42
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000035485 pulse pressure Effects 0.000 abstract description 2
- 230000003068 static Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Abstract
The invention discloses a differential pressure transmitter checking instrument, which belongs to the field of automatic instrument checking instruments. The differential pressure transmitter checking instrument is characterized by comprising a box body, wherein a standard differential pressure transmitter and a checked differential pressure transmitter joint are arranged on the box body, and an air compressor, a pneumatic hydraulic pump, a check valve, an electromagnetic three-valve group, an electromagnetic valve D, an oil tank, a standard pressure transmitter and an intelligent controller are arranged inside the box body. The differential pressure transmitter checking instrument adopts a method of using the pneumatic hydraulic pump for pressurization and pulse pressure release, so the pressurization and the pressure release are more stable and more accurate, and the differential pressure transmitter checking instrument can realize the fully automatic checking on the differential pressure transmitter, and has the characteristics that the pressure control is fast and stable, and the pressure making is accurate.
Description
Technical field
The present invention relates to a kind of differential pressure transmitter tester, belong to instrument and meter for automation tester field.
Background technology
Differential pressure transmitter is widely used in the measurement of flow and liquid level, now manual adjustments static pressure and differential pressure signal is mostly used in the differential pressure transmitter verification, troublesome poeration not only, and location difficulty also easily produces artificial reading error.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of differential pressure transmitter tester that can automatically accurately locate static pressure and differential pressure checkpoint.
For achieving the above object, the present invention realizes by following technical scheme: the differential pressure transmitter tester, it is characterized in that, comprise casing, the standard deviation pressure transmitter is installed on described casing and by school differential pressure transmitter joint, at described box house air compressor machine, pneumatically powered hydraulic pump, reverse checkvalve, electromagnetism three valve groups, solenoid valve D, fuel tank, normal pressure transmitter, intelligent controller is installed.
Further, described electromagnetism three valve groups comprise solenoid valve A, solenoid valve B, solenoid valve C.
Further, described air compressor machine is connected with pneumatically powered hydraulic pump, pneumatically powered hydraulic pump is connected with fuel tank, pneumatically powered hydraulic pump also is connected with reverse checkvalve one end, the reverse checkvalve other end divides two-way to be connected with electromagnetism three valve groups, be connected to the normal pressure transmitter between reverse checkvalve and the electromagnetism three valve groups, electromagnetism three valve groups and standard deviation pressure transmitter be connected by school differential pressure transmitter joint, be connected to solenoid valve D between electromagnetism three valve groups and the standard deviation pressure transmitter.Intelligent controller control solenoid valve A, solenoid valve B, solenoid valve C opened when verification began, start air compressor machine and drive the pneumatically powered hydraulic pump pressurization, measure static pressure by the normal pressure transmitter, intelligent controller control solenoid valve A, solenoid valve B, solenoid valve C close when arriving the static pressure checkpoint, carry out the static pressure verification this moment, then, adopt intelligent controller control solenoid valve D pulse fine setting pressure release to obtain differential pressure value, carry out the differential pressure verification.
The invention has the beneficial effects as follows, can automatically carry out verification to differential pressure transmitter, can automatically accurately locate static pressure and differential pressure checkpoint, can carry out positive revesal verification by a plurality of checkpoints of automatic setting, be limited to 4MPa on the static pressure pressure checking, because the method for the pressurization of employing pneumatically powered hydraulic pump and pulse pressure release makes pressurization and pressure release steady more and accurate.
Description of drawings
Fig. 1 is the system diagram of differential pressure transmitter tester of the present invention;
Fig. 2 is the electromagnetism three valve group synoptic diagram of differential pressure transmitter tester of the present invention.
The mark implication is as follows in the accompanying drawing:
1, air compressor machine 2, pneumatically powered hydraulic pump 3, reverse checkvalve 4, electromagnetism three valve groups
5, standard deviation pressure transmitter 6, by school differential pressure transmitter joint 7, solenoid valve D 8, fuel tank
9, normal pressure transmitter 10, intelligent controller 11, casing 12, solenoid valve A
13, solenoid valve B 14, solenoid valve C.
Embodiment
The present invention is described in further detail below in conjunction with diagram and specific embodiment.
With reference to Fig. 1, Fig. 2, differential pressure transmitter tester of the present invention, comprise casing 11, standard deviation pressure transmitter 5 is installed on casing 11 and by school differential pressure transmitter joint 6, air compressor machine 1, pneumatically powered hydraulic pump 2, reverse checkvalve 3, electromagnetism three valve groups 4, solenoid valve D7, fuel tank 8, normal pressure transmitter 9, intelligent controller 10 is installed in casing 11 inside.
Further, described electromagnetism three valve groups 4 comprise solenoid valve A12, solenoid valve B13, solenoid valve C14.
Further, described air compressor machine 1 is connected with pneumatically powered hydraulic pump 2, pneumatically powered hydraulic pump 2 is connected with fuel tank 8, pneumatically powered hydraulic pump 2 also is connected with reverse checkvalve 3 one ends, reverse checkvalve 3 other ends divide two-way to be connected with electromagnetism three valve groups 4, be connected to normal pressure transmitter 9 between reverse checkvalve 3 and the electromagnetism three valve groups 4, electromagnetism three valve groups 4 and standard deviation pressure transmitter 5 be connected by school differential pressure transmitter joint 6, be connected to solenoid valve D7 between electromagnetism three valve groups 4 and the standard deviation pressure transmitter 5.Intelligent controller 10 control solenoid valve A12, solenoid valve B13, solenoid valve C14 opened when verification began, start air compressor machine 1 and drive pneumatically powered hydraulic pump 2 pressurizations, measure static pressure by normal pressure transmitter 9, intelligent controller 10 control solenoid valve A12, solenoid valve B13, solenoid valve C14 close when arriving the static pressure checkpoint, carry out the static pressure verification this moment, then, adopt intelligent controller 10 control solenoid valve D7 pulse fine setting pressure releases to obtain differential pressure value, carry out the differential pressure verification.
By reference to the accompanying drawings exemplary description is carried out in invention above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the non-substantial improvement of having adopted method design of the present invention and technical scheme to carry out; perhaps without improving method design of the present invention and technical scheme are applied directly to other occasions, all within protection scope of the present invention.
Claims (1)
1. differential pressure transmitter tester, it is characterized in that, comprise casing (11), standard deviation pressure transmitter (5) is installed and by school differential pressure transmitter joint (6) on described casing (11), air compressor machine (1), pneumatically powered hydraulic pump (2), reverse checkvalve (3), electromagnetism three valve groups (4), solenoid valve D (7), fuel tank (8), normal pressure transmitter (9), intelligent controller (10) are installed in described casing (11) inside, and described electromagnetism three valve groups (4) comprise solenoid valve A (12), solenoid valve B (13), solenoid valve C (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101487053A CN103234696A (en) | 2013-04-26 | 2013-04-26 | Differential pressure transmitter checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101487053A CN103234696A (en) | 2013-04-26 | 2013-04-26 | Differential pressure transmitter checking instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103234696A true CN103234696A (en) | 2013-08-07 |
Family
ID=48882747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101487053A Pending CN103234696A (en) | 2013-04-26 | 2013-04-26 | Differential pressure transmitter checking instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234696A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557990A (en) * | 2013-10-11 | 2014-02-05 | 中国人民解放军63908部队 | All-round verifying device for pressure instrument equipment |
| CN104406740A (en) * | 2014-12-04 | 2015-03-11 | 南京化工职业技术学院 | Low static pressure and differential pressure producer |
| 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 |
| CN107741297A (en) * | 2017-11-21 | 2018-02-27 | 王强 | Differential pressure transmitter verifies detecting system |
| CN110398316A (en) * | 2019-08-23 | 2019-11-01 | 山东福瑞德测控系统有限公司 | Differential pressure transmitter and automatic calibrating method for differential pressure transmitter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256096Y (en) * | 1996-10-04 | 1997-06-11 | 刘铁年 | Precisive pressure and vacuum tester |
| DE10352308A1 (en) * | 2003-11-06 | 2005-06-09 | Endress + Hauser Gmbh + Co. Kg | Calibration method e.g. for differential pressure sensors, involves having two pressure entrances and seizing difference of pressure with high pressures with pressure entrances are attached to two pressure exits of hydraulic system |
| CN2828776Y (en) * | 2005-06-21 | 2006-10-18 | 上海威尔泰工业自动化股份有限公司 | Static pressure drift testing device of differential transmitter |
| US20090064756A1 (en) * | 2007-09-07 | 2009-03-12 | Korea Research Institute Of Standards And Science | Vacuum gauge calibration apparatus capable of calibrating and testing without displacement and operating method thereof |
| CN202002771U (en) * | 2010-12-14 | 2011-10-05 | 西安铁路局科学技术研究所 | Detection device of explosion pressure gauge |
| CN202614465U (en) * | 2012-06-19 | 2012-12-19 | 杭州石林自动化工程有限公司 | Full automatic pressure checking table of high hydrostatic pressure differential pressure transmitter |
| CN203191153U (en) * | 2013-04-26 | 2013-09-11 | 南京化工职业技术学院 | Differential pressure transmitter calibrator |
-
2013
- 2013-04-26 CN CN2013101487053A patent/CN103234696A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256096Y (en) * | 1996-10-04 | 1997-06-11 | 刘铁年 | Precisive pressure and vacuum tester |
| DE10352308A1 (en) * | 2003-11-06 | 2005-06-09 | Endress + Hauser Gmbh + Co. Kg | Calibration method e.g. for differential pressure sensors, involves having two pressure entrances and seizing difference of pressure with high pressures with pressure entrances are attached to two pressure exits of hydraulic system |
| CN2828776Y (en) * | 2005-06-21 | 2006-10-18 | 上海威尔泰工业自动化股份有限公司 | Static pressure drift testing device of differential transmitter |
| US20090064756A1 (en) * | 2007-09-07 | 2009-03-12 | Korea Research Institute Of Standards And Science | Vacuum gauge calibration apparatus capable of calibrating and testing without displacement and operating method thereof |
| CN202002771U (en) * | 2010-12-14 | 2011-10-05 | 西安铁路局科学技术研究所 | Detection device of explosion pressure gauge |
| CN202614465U (en) * | 2012-06-19 | 2012-12-19 | 杭州石林自动化工程有限公司 | Full automatic pressure checking table of high hydrostatic pressure differential pressure transmitter |
| CN203191153U (en) * | 2013-04-26 | 2013-09-11 | 南京化工职业技术学院 | Differential pressure transmitter calibrator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557990A (en) * | 2013-10-11 | 2014-02-05 | 中国人民解放军63908部队 | All-round verifying device for pressure instrument equipment |
| CN103557990B (en) * | 2013-10-11 | 2016-04-06 | 中国人民解放军63908部队 | The all-round calibrating installation of a kind of manometer equipment |
| CN104406740A (en) * | 2014-12-04 | 2015-03-11 | 南京化工职业技术学院 | Low static pressure and differential pressure producer |
| 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 |
| CN107741297A (en) * | 2017-11-21 | 2018-02-27 | 王强 | Differential pressure transmitter verifies detecting system |
| CN110398316A (en) * | 2019-08-23 | 2019-11-01 | 山东福瑞德测控系统有限公司 | Differential pressure transmitter and automatic calibrating method for differential pressure transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130807 |