CN102023070B - Device for mounting and checking pressure sensor and method for correcting pressure sensor - Google Patents
Device for mounting and checking pressure sensor and method for correcting pressure sensor Download PDFInfo
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- CN102023070B CN102023070B CN2009101923662A CN200910192366A CN102023070B CN 102023070 B CN102023070 B CN 102023070B CN 2009101923662 A CN2009101923662 A CN 2009101923662A CN 200910192366 A CN200910192366 A CN 200910192366A CN 102023070 B CN102023070 B CN 102023070B
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Abstract
The invention provides a device for mounting and checking a pressure sensor. The device for mounting and checking the pressure sensor adopts a mounting structure integrating a mounting interface, a correcting interface, a replacing interface and the like of the pressure sensor, wherein the whole mounting structure is simple and reliable and is easy to operate. The device for mounting and checking the pressure sensor comprises a pore plate type mounting block serving as a supporting piece, wherein the pore plate type mounting block is provided with more than one group of three-way pipeline combinations; and three openings of the three-way pipeline combinations are positioned on the outer wall surface of the pore plate type mounting block and are connected with a valve, the sensor and an interface of a body to be tested respectively. The invention also provides a method for correcting the pressure sensor. The detection method comprises the following steps of: twisting off a seal cap of a fluorine-injecting nozzle; connecting one end of a pressure pipe with a top center type joint with the fluorine-injecting nozzle, and connecting the other end of the pressure pipe with a pressure gage for correcting; and jacking a valve core of the fluorine-injecting nozzle by using the top center type joint, so that a pressure cavity of the pressure sensor is communicated with the pressure gage for correcting while seal, namely, the pressure detected by the pressure gage for correcting is the same as that detected by the pressure sensor, the accuracy of the correction is guaranteed, and the method is simple and reliable and is easy to operate.
Description
Technical field
The invention belongs to the pressure detection technical field, be specifically related to the bearing calibration of installation, calibration equipment and the pressure transducer of pressure transducer.
Background technology
For cryogenic liquid cooling unit, its pressure test requires that higher measuring accuracy is arranged, and this just need select the higher pressure transducer of precision for use, but the sensor that satisfies this request for utilization on the market can't accomplish that volume is less, can't be directly installed on the pipeline.So need the design special support that pressure transducer is installed,, do not possess maintenance and calibration function based on existing various mounting brackets.Therefore, if use the mounting bracket of existing simple function, then can not satisfy the maintenance of cryogenic liquid cooling unit and proofread and correct convenient and reliability requirements.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of installation, calibration equipment of multi-functional pressure force transducer; The integrated mounting structure of interfaces such as the installation of pressure transducer, detection, correction of this device; Whole erection is simple and reliable for structure, and is easy to use, easy to operate.
The technical matters of another solution of the present invention is to provide a kind of bearing calibration of pressure transducer, and is simple and reliable, easy to operate.
The present invention realizes through following technical scheme:
A kind of installation of pressure transducer, calibration equipment wherein, include the orifice-plate type mounting blocks as support member; Said orifice-plate type mounting blocks is provided with one group of above three-way pipeline combination; Three openings of said three-way pipeline combination are positioned on the outside wall surface of orifice-plate type mounting blocks, are connected to form valve pipe, sensor pipeline and body interface pipeline to be measured with valve, sensor and body interface to be measured respectively.
The installation of said a kind of pressure transducer, calibration equipment include two groups of three-way pipeline combinations, that is: combination of Highpressure Tee pipeline and the combination of low pressure three-way pipeline, and said Highpressure Tee pipeline combination cuts off with the combination of low pressure three-way pipeline each other.
Said valve is a kind of angle valve.
Said body interface to be measured is a kind of fluorinfused nozzle.
Said pressure transducer is high pressure sensor or low pressure sensor.
Use the bearing calibration of pressure transducer of installation, the calibration equipment of above-mentioned a kind of pressure transducer to include detection method and replacing method, wherein, the detection method of said pressure transducer is:
Turn on body interface sealing cap to be measured, connect body interface to be measured with force pipe one end of being with top core type joint, the other end connects to proofread and correct uses tensimeter; Top core type joint backs down body interface spool to be measured, and the pressure transducer pressure chamber is connected with proofreading and correct with tensimeter, promptly proofread and correct with tensimeter institute measuring pressure identical with pressure transducer institute measuring pressure, the accuracy of assurance correction; When correction is consistent with pressure sensor readings with tensimeter, can judge that pressure transducer is accurate; When proofreading and correct with tensimeter and pressure sensor readings when inconsistent, can judge that pressure transducer need overhaul or change.
To sum up, the invention has the beneficial effects as follows:
The installation of a kind of pressure transducer of the present invention, calibration equipment, its mounting structure integrated high voltage measuring junction and low pressure measurement end are one, adopt the multi-channel type connected mode; Adopt the orifice-plate type mounting blocks, hyperchannel is communicated with each functional unit, the more problem of avoiding multichannel to draw causing of branch road; The total compactness is simple and reliable, and maintainability is good, has pressure transducer regular calibration interface; Functions such as pressure seal are convenient to the maintenance and the replacing of this high-precision sensor.The refrigeration plant that uses in the industry; Need have accurate control on the function to pressure; This just requires the high-precision pressure sensor that uses volume bigger; The installation of this pressure transducer is owing to relate to pressure source and draw, sensor fixing, and in the use sensor maintenance and proofread and correct problems such as whether convenient.The mounting means of this novel mounting blocks has solved above all problems.A kind of installation of pressure transducer of the present invention simultaneously, calibration equipment adopt angle valve to connect, if pressure transducer breaks down in the unit operation, turn off angle valve and can take out replacing sensor or maintenance smoothly, and system does not have any leakage, need not weld, and is convenient and reliable.The bearing calibration of pressure transducer of the present invention, convenient easy to operate, need proofread and correct this pressure transducer precision when unit operation a period of time, needn't dismantle pressure transducer, under the state of unit operation, get final product monitoring pressure through the fluorinfused nozzle interface.The installation of pressure transducer of the present invention, calibration equipment can be widely used in having pressure transducer regular calibration interface, functions such as pressure seal on the freezing and refrigeration series unit; Be convenient to the maintenance and the replacing of this high-precision sensor; Conserve space, easy for installation, satisfactory for result.
Description of drawings
Fig. 1 is the structural representation of orifice-plate type mounting blocks of installation, the calibration equipment of a kind of pressure transducer of the present invention;
Fig. 2 is the installation of a kind of pressure transducer of the present invention, the one-piece construction synoptic diagram of calibration equipment;
Fig. 3 is the installation of a kind of pressure transducer of the present invention, the plan structure synoptic diagram of calibration equipment;
Fig. 4 be a kind of pressure transducer of the present invention installation, calibration equipment separate cut-open view.
Description of reference numerals:
1, fluorinfused nozzle, 2, the orifice-plate type mounting blocks, 3, angle valve, 4, high pressure sensor, 5, gasket seal; 6, low pressure sensor, 7, force pipe, 8, proofread and correct and use tensimeter, 20, body interface pipeline to be measured; 21, valve pipe, 22, the sensor pipeline, 23, bolt hole, 24, positioning boss.
Embodiment
The invention discloses a kind of installation, calibration equipment of pressure transducer,, wherein, include orifice-plate type mounting blocks 2 as support member like Fig. 1,2,3, shown in 4; Said orifice-plate type mounting blocks 2 is provided with one group of above three-way pipeline combination; Three openings of said three-way pipeline combination are positioned on the outside wall surface of orifice-plate type mounting blocks, are connected to form valve pipe (21), sensor pipeline (22) and body interface pipeline to be measured (20) with valve, sensor and body interface to be measured respectively.
The installation of said pressure transducer, calibration equipment include two groups of three-way pipeline combinations, that is: combination of Highpressure Tee pipeline and the combination of low pressure three-way pipeline, and said Highpressure Tee pipeline combination cuts off with the combination of low pressure three-way pipeline each other.
Said valve is a kind of angle valve 3.
Said body interface to be measured is a kind of fluorinfused nozzle 1.
Said pressure transducer is high pressure sensor 4 or low pressure sensor 6.
Embodiment:
Like Fig. 1,2,3, shown in 4; In the present embodiment, orifice-plate type mounting blocks 2 integral body are rectangular-shaped structure, two parts about branch; Be respectively high-pressure side and low pressure end; The Highpressure Tee pipeline combination that high-pressure side is provided with includes the branch pipe(tube) that center line is mutual plumbness, that is: valve pipe 21, sensor pipeline 22 and body interface pipeline 20 to be measured; The opening of said valve pipe, sensor pipeline and body interface pipeline to be measured lays respectively on the different outside wall surface of orifice-plate type mounting blocks, and the center line of said valve pipe, sensor pipeline and body interface pipeline to be measured is vertical with the outside wall surface of corresponding orifice-plate type mounting blocks; Valve pipe 21, sensor pipeline 22 and body interface pipeline 20 to be measured, its pipe centerline separately is vertical each other.
The low pressure three-way pipeline combination of orifice-plate type mounting blocks 2 is identical with Highpressure Tee pipeline unitized construction.
Adopt gasket seal 5 to seal between said sensor pipeline 22 and the pressure transducer.
Orifice-plate type mounting blocks 2 is key elements of this structure, adopts hyperchannel orifice-plate type structure, respectively pressure transducer 4,6, and angle valve 3, fluorinfused nozzle 1 is communicated with, and pressure source is introduced by angle valve 3, and can be through angle valve control break-make.
Said orifice-plate type mounting blocks 2 is provided with two positioning boss 24 and a bolt hole 23; Be positioned at opposing another lateral wall of the opening of surveying body interface pipeline on; Be used for the installation of whole device on unit, unit is provided with corresponding fixed support, positions on fixed support through boss 24; Use a bolt can guarantee the firm installation on support of whole assembly, install simple.
The installation of pressure transducer, the installation of calibration equipment at first need be communicated with pressure source through thinner pipeline with the cell pressure interface; Form the pressure end of a sealing; When system pressure changes; Pressure transducer is converted into voltage signal to corresponding pressure signal and feeds back to control system, thereby system is control effectively.The installation of pressure transducer of the present invention, the mounting structure of calibration equipment adopt the multichannel sensor mounting blocks sensor, fluorinfused nozzle cleverly; Angle valve is communicated with each other; The common confining pressure end that forms; Realize the break-make of pressure transducer pressure end and system making things convenient for the replacing of pressure transducer through open and close to angle valve.Simultaneously through fluorinfused nozzle, can be under open state the accuracy of monitor force sensor and precision at any time.
When pressure transducer breaks down or during precise decreasing, we can detect correction through fluorinfused nozzle 1 interface, the bearing calibration of pressure transducer includes detection method and replacing method.
Use the bearing calibration of pressure transducer of installation, the calibration equipment of above-mentioned a kind of pressure transducer to include detection method and replacing method, wherein, the detection method of said pressure transducer is: (high-pressure and low-pressure mouth mode is identical, and existing is example with an end):
Turn on the fluorinfused nozzle sealing cap, with the force pipe 7 one ends connection fluorinfused nozzle of band top core type joint, the other end connects the correction of correction usefulness with tensimeter 8; Top core type joint backs down the fluorinfused nozzle spool, and the pressure transducer pressure chamber is connected with proofreading and correct with tensimeter, promptly proofread and correct with tensimeter institute measuring pressure identical with pressure transducer institute measuring pressure, the accuracy of assurance correction; When correction is consistent with pressure sensor readings with tensimeter, can judge that pressure transducer is accurate; When proofreading and correct with tensimeter and pressure sensor readings when inconsistent, can judge that pressure transducer need overhaul or change:
The replacing method of said pressure transducer is: if find to proofread and correct with tensimeter and pressure sensor readings when inconsistent, explain that sensor has problem, need overhaul or replacing; At this moment we are through angle valve 3 cut-out pressure sources; Replacing pressure transducer under pressure-less state, all operations all make things convenient for succinctly, do not need welding; System can not reveal yet, the loss refrigerant.
Above-mentioned listed concrete implementation is nonrestrictive, to one skilled in the art, is not departing from the scope of the invention, and various improvement and the variation carried out all belong to protection scope of the present invention.
Claims (10)
1. the installation of a pressure transducer, calibration equipment is characterized in that: include the orifice-plate type mounting blocks (2) as support member; Said orifice-plate type mounting blocks (2) is provided with one group of above three-way pipeline combination; Three openings of said three-way pipeline combination are positioned on the outside wall surface of orifice-plate type mounting blocks, are connected to form valve pipe (21), sensor pipeline (22) and body interface pipeline to be measured (20) with valve, sensor and body interface to be measured respectively; Orifice-plate type mounting blocks (2) is provided with two positioning boss (24) and a bolt hole (23), and said positioning boss (24) and bolt hole (23) are positioned on another opposing lateral wall of the opening with said body interface pipeline to be measured (20) of said orifice-plate type mounting blocks (2).
2. the installation of a kind of pressure transducer according to claim 1, calibration equipment; It is characterized in that: the installation of said pressure transducer, calibration equipment include two groups of three-way pipeline combinations; That is: combination of Highpressure Tee pipeline and the combination of low pressure three-way pipeline, said Highpressure Tee pipeline combination cuts off with the combination of low pressure three-way pipeline each other.
3. the installation of a kind of pressure transducer according to claim 1, calibration equipment, it is characterized in that: said valve is a kind of angle valve (3).
4. the installation of a kind of pressure transducer according to claim 1, calibration equipment, it is characterized in that: said body interface to be measured is a kind of fluorinfused nozzle (1).
5. the installation of a kind of pressure transducer according to claim 1, calibration equipment, it is characterized in that: said pressure transducer is high pressure sensor (4) or low pressure sensor (6).
6. according to installation, the calibration equipment of any one described a kind of pressure transducer in the claim 3 to 5; It is characterized in that: said valve pipe (21), sensor pipeline (22) and body interface pipeline to be measured (20), its pipe centerline separately is vertical each other.
7. the installation of a kind of pressure transducer according to claim 6, calibration equipment; It is characterized in that: said orifice-plate type mounting blocks (2) is whole to be rectangular-shaped structure; The opening of said valve pipe, sensor pipeline and body interface pipeline to be measured lays respectively on the different outside wall surface of orifice-plate type mounting blocks, and the center line of said valve pipe (21), sensor pipeline (22) and body interface pipeline to be measured (20) is vertical with the outside wall surface of corresponding orifice-plate type mounting blocks.
8. the installation of a kind of pressure transducer according to claim 6, calibration equipment is characterized in that: adopt gasket seal (5) to seal between said sensor pipeline (22) and the pressure transducer.
9. use the bearing calibration of pressure transducer of installation, the calibration equipment of a kind of pressure transducer as claimed in claim 1; It is characterized in that; Said bearing calibration comprises detection method and replacing method; The detection method of said pressure transducer is: turn on body interface sealing cap to be measured, connect body interface to be measured with force pipe (7) one ends of being with top core type joint, the other end connects the correction of correction usefulness with tensimeter (8); Top core type joint backs down body interface spool to be measured, and the pressure transducer pressure chamber is connected with proofreading and correct with tensimeter, promptly proofread and correct with tensimeter institute measuring pressure identical with pressure transducer institute measuring pressure, the accuracy of assurance correction; When correction is consistent with pressure sensor readings with tensimeter, can judge that pressure transducer is accurate; When proofreading and correct with tensimeter and pressure sensor readings when inconsistent, can judge that pressure transducer need overhaul or change.
10. the bearing calibration of pressure transducer according to claim 9 is characterized in that, described replacing method is: when pressure transducer need be changed, and valve-off pipeline cut-out pressure source, replacing pressure transducer under pressure-less state.
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CN2009101923662A CN102023070B (en) | 2009-09-15 | 2009-09-15 | Device for mounting and checking pressure sensor and method for correcting pressure sensor |
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CN2009101923662A CN102023070B (en) | 2009-09-15 | 2009-09-15 | Device for mounting and checking pressure sensor and method for correcting pressure sensor |
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CN102023070B true CN102023070B (en) | 2012-11-21 |
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CN103302437B (en) * | 2013-06-27 | 2015-09-09 | 成都网动光电子技术股份有限公司 | For the auxiliary mounting blocks device that optical device is corrected |
CN104819806B (en) * | 2015-04-30 | 2017-09-26 | 中国船舶重工集团公司第七○二研究所 | A kind of high-precision sensor calibration equipment |
CN106989242A (en) * | 2017-06-06 | 2017-07-28 | 利穗科技(苏州)有限公司 | A kind of multi-functional switching block |
CN110192551A (en) * | 2018-12-28 | 2019-09-03 | 广东省心血管病研究所 | Cooling system and control method used in a kind of stem cell cryopreserving process |
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US3633618A (en) * | 1970-02-26 | 1972-01-11 | Joseph J Blackmore | Valved manifold for gauging a plurality of fluid pressures |
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CN1548862A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Three-way valve for air conditioner service |
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CN201281642Y (en) * | 2008-10-27 | 2009-07-29 | 上海宝钢设备检修有限公司 | Adjustable installation stent for pressure transmitter |
CN201555685U (en) * | 2009-09-15 | 2010-08-18 | 珠海格力电器股份有限公司 | Device for installing and checking pressure sensor |
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2009
- 2009-09-15 CN CN2009101923662A patent/CN102023070B/en active Active
Patent Citations (9)
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US3633618A (en) * | 1970-02-26 | 1972-01-11 | Joseph J Blackmore | Valved manifold for gauging a plurality of fluid pressures |
US4092865A (en) * | 1976-06-24 | 1978-06-06 | Gould Inc. | Fluid-test apparatus |
US4193420A (en) * | 1978-03-02 | 1980-03-18 | Hewson John E | Differential pressure transducer process mounting support and manifold |
CN1548862A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Three-way valve for air conditioner service |
US7231831B1 (en) * | 2006-01-17 | 2007-06-19 | Noshok, Inc. | Manifold valve and pressure transducer assembly |
CA2604736A1 (en) * | 2006-09-29 | 2008-03-29 | Brasscorp Limited | Vacuum gauge and refrigeration system service tool, and methods of using the same |
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CN201281642Y (en) * | 2008-10-27 | 2009-07-29 | 上海宝钢设备检修有限公司 | Adjustable installation stent for pressure transmitter |
CN201555685U (en) * | 2009-09-15 | 2010-08-18 | 珠海格力电器股份有限公司 | Device for installing and checking pressure sensor |
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