CN203616052U - A pressure gauge calibrating device - Google Patents

A pressure gauge calibrating device Download PDF

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Publication number
CN203616052U
CN203616052U CN201320843103.5U CN201320843103U CN203616052U CN 203616052 U CN203616052 U CN 203616052U CN 201320843103 U CN201320843103 U CN 201320843103U CN 203616052 U CN203616052 U CN 203616052U
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CN
China
Prior art keywords
pressure
pressure gauge
gauge
calibrated
correcting
Prior art date
Application number
CN201320843103.5U
Other languages
Chinese (zh)
Inventor
何兵
Original Assignee
珠海格力电器股份有限公司
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Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Priority to CN201320843103.5U priority Critical patent/CN203616052U/en
Application granted granted Critical
Publication of CN203616052U publication Critical patent/CN203616052U/en

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Abstract

The utility model provides a pressure gauge calibrating device comprising a pressure source used for providing pressure, a conveying pipe connected with the pressure source, a standard pressure gauge, an exhaust valve and a plug which is arranged on the conveying pipe in a mode of series connection and used for the installation of a to-be-calibrated pressure gauge. The standard pressure gauge and the exhaust valve are arranged on the conveying pipe in a mode of series connection. Along a medium flow direction, the exhaust valve is positioned in a downstream of the plug and the standard pressure gauge. According to the pressure gauge calibrating device provided by the utility model, the to-be-calibrated pressure gauge and the standard pressure gauge are arranged on the same conveying pipe; the conveying pipe is connected with the pressure source, so that the to-be-calibrated pressure gauge is in series connection with the standard pressure gauge, and the to-be-calibrated pressure gauge and the standard pressure gauge are made to simultaneously measure a same pressure, and accordingly, differences between a real pressure measured by the to-be-calibrated pressure gauge and a real pressure measured by the standard pressure gauge are avoided; calibration deviations of the to-be-calibrated pressure gauge are reduced; the calibration precision is further raised; and simultaneously, the measurement time is effectively reduced, and the calibration efficiency is furthermore raised.

Description

Correcting device for pressure gauge
Technical field
The utility model relates to manometer calibration technical field, more particularly, relates to a kind of correcting device for pressure gauge.
Background technology
Tensimeter is for detection of device internal pressure, and manometric precision directly affects normally using and moving of device, and for example electric pressure cooking saucepan will affect product boiling efficiency if the pressure of electric pressure cooking saucepan is on the low side, if the higher potential safety hazard that exists of the pressure of electric pressure cooking saucepan.Therefore, need periodic calibration tensimeter.
For electric pressure cooking saucepan, current calibration steps is: choose electric pressure cooking saucepan model machine and master gauge, adopt the operating pressure of master gauge gaging pressure pot, be designated as the first operating pressure; Then adopt the operating pressure of this electric pressure cooking saucepan model machine of gauge measurement to be calibrated, be designated as the second operating pressure; According to the pressure differential of the first operating pressure and the second operating pressure, judge that whether tensimeter to be calibrated is qualified, and determine manometric range to be calibrated.
But, electric pressure cooking saucepan each time upper pressure of pressing has the deviation about 3KPa, and the inside water yield of electric pressure cooking saucepan is hard to keep unanimously while measuring operating pressure at every turn, therefore when while being difficult to ensure card employing gauge measurement to be calibrated, the internal pressure of electric pressure cooking saucepan is measured with employing master gauge, the internal pressure of electric pressure cooking saucepan is identical, cause manometric calibration to be calibrated to occur deviation, make calibration accuracy lower; .
In addition, each gauge measurement operating pressure all needs equal pressure switch to disconnect, and the time needing is longer, causes calibration efficiency lower.
In sum, how base measuring pressure table, to improve calibration accuracy, is current those skilled in the art's problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of correcting device for pressure gauge, to improve calibration accuracy.
To achieve these goals, the utility model provides following technical scheme:
A kind of correcting device for pressure gauge, comprising:
For the pressure source of pressure is provided; The delivery pipe being connected with described pressure source; Be serially connected with master gauge and vent valve on described delivery pipe; Be serially connected with on described delivery pipe and for manometric plug to be calibrated is installed;
Wherein, along MEDIA FLOW to, described vent valve is positioned at the downstream of described plug and described master gauge.
Preferably, correcting device for pressure gauge, also comprises: be serially connected with the safety valve on described delivery pipe; Along MEDIA FLOW to, described safety valve is positioned at the upstream of described vent valve.
Preferably, in correcting device for pressure gauge, described master gauge, described safety valve and described plug are all serially connected with on described delivery pipe by T-valve.
Preferably, correcting device for pressure gauge, also comprises: be serially connected with the pressure regulator valve on described delivery pipe; Along MEDIA FLOW to, described pressure regulator valve is positioned at the upstream of described master gauge and described plug.
Preferably, in correcting device for pressure gauge, along MEDIA FLOW to, described pressure regulator valve, described master gauge, described safety valve, described plug and described vent valve are serially connected with on described delivery pipe successively.
Preferably, correcting device for pressure gauge, also comprises: housing; Wherein, described master gauge, described plug and described vent valve all expose to described housing.
Preferably, in correcting device for pressure gauge, described master gauge and described plug are all positioned at the top of described housing, and described vent valve is positioned at the side of described housing.
Preferably, in correcting device for pressure gauge, described housing is rectangular-shaped.
Preferably, in correcting device for pressure gauge, described pressure source is source of the gas.
Preferably, in correcting device for pressure gauge, described delivery pipe is PE pipe.
The using method of the correcting device for pressure gauge that the utility model provides is: tensimeter to be calibrated is arranged on plug, closes vent valve; Then delivery pipe is connected on pressure source, in delivery pipe, there is the medium of certain pressure, observe force value and the manometric force value to be calibrated of base measuring pressure table, judge that whether tensimeter to be calibrated is qualified, realized manometric calibration to be calibrated.To be calibrated complete after, open vent valve, realize release.
The correcting device for pressure gauge that the utility model provides, tensimeter to be calibrated and master gauge are arranged on same delivery pipe, this delivery pipe is connected with pressure source, tensimeter to be calibrated and master gauge series connection, make tensimeter to be calibrated and master gauge measure same pressure simultaneously, thereby the actual pressure of having avoided the actual pressure of gauge measurement to be calibrated to measure from master gauge is different, has reduced manometric calibration deviation to be calibrated, and then has improved calibration accuracy.
Simultaneously, the correcting device for pressure gauge that the utility model provides, tensimeter to be calibrated is arranged on plug, delivery pipe Bonding pressure source, master gauge and tensimeter to be calibrated are measured simultaneously, successively measure without master gauge and tensimeter to be calibrated, thereby effectively reduced Measuring Time, and then improved calibration efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic diagram of the correcting device for pressure gauge that Fig. 1 provides for the utility model embodiment, in figure arrow represent MEDIA FLOW to;
The structural representation of the correcting device for pressure gauge that Fig. 2 provides for the utility model embodiment.
In upper Fig. 1-2:
1 is that pressure source, 2 is that pressure regulator valve, 3 master gauges, 4 are that safety valve, 5 is that tensimeter to be calibrated, 6 is that vent valve, 7 is that delivery pipe, 8 is that plug, 9 is housing.
Embodiment
The utility model embodiment provides a kind of correcting device for pressure gauge, has improved calibration accuracy.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The correcting device for pressure gauge that the utility model embodiment provides, comprising: for the pressure source 1 of pressure is provided; The delivery pipe 7 being connected with pressure source 1; Be serially connected with master gauge 3 and vent valve 6 on delivery pipe 7; Be serially connected with on delivery pipe 7 and for the plug 8 of tensimeter 5 to be calibrated is installed; Wherein, along MEDIA FLOW to, vent valve 6 is positioned at the downstream of plug 8 and master gauge 3.
It should be noted that the pressure that pressure source 1 can provide need to be selected according to the range of tensimeter 5 to be calibrated; Master gauge 3 is international height tensimeter accurately, and the range of master gauge 3 also needs to select according to the range of tensimeter 5 to be calibrated.Plug 8 is existing plug special, repeats no more its concrete structure herein.Plug 8 can guarantee that plug and tensimeter to be calibrated 5 are tightly connected.
The using method of the correcting device for pressure gauge that the utility model embodiment provides is: tensimeter 5 to be calibrated is arranged on plug 8, closes vent valve 6; Then delivery pipe 7 is connected on pressure source 1, in delivery pipe 7, there is the medium of certain pressure, the force value of the force value of observation caliber tensimeter 3 and tensimeter to be calibrated 5, judges that whether tensimeter 5 to be calibrated is qualified, has realized the calibration of tensimeter 5 to be calibrated.To be calibrated complete after, open vent valve 6, realize release.
The correcting device for pressure gauge that the utility model embodiment provides, tensimeter 5 to be calibrated and master gauge 3 are arranged on same delivery pipe 7, this delivery pipe 7 is connected with pressure source 1, tensimeter 5 to be calibrated and master gauge 3 are connected, make tensimeter 5 to be calibrated and master gauge 3 measure same pressure simultaneously, thereby the actual pressure of having avoided actual pressure that tensimeter 5 to be calibrated is measured to measure from master gauge 3 is different, the deviation having occurred when having reduced tensimeter 5 to be calibrated and calibrating, and then improved calibration accuracy.
Simultaneously, the correcting device for pressure gauge that the utility model embodiment provides, tensimeter 5 to be calibrated is arranged on plug 8, delivery pipe 7 Bonding pressure sources 1, master gauge 3 and tensimeter to be calibrated 5 are measured simultaneously, successively measure without master gauge 3 and tensimeter to be calibrated 5, thereby effectively reduced Measuring Time, and then improved calibration efficiency.
The correcting device for pressure gauge that above-described embodiment provides, calibrated 5 need of tensimeter to be calibrated about 20 seconds, had effectively improved calibration efficiency; Force value accuracy after calibration is also higher simultaneously, and pressure divergence is no more than 1KPa.
Preferably, the correcting device for pressure gauge that above-described embodiment provides, also comprises: be serially connected with the safety valve 4 on delivery pipe 7; Along MEDIA FLOW to, safety valve 4 is positioned at the upstream of vent valve 6.Like this, in the time that the pressure in delivery pipe 7 is excessive, safety valve 4 is opened, and has avoided, because security incident appears in hypertonia, having kept safe handling.Wherein, the working value of safety valve 4, can set according to actual needs, and the utility model embodiment does not do this particularly and limits.
For the ease of installation and removal, in the correcting device for pressure gauge that above-described embodiment provides, master gauge 3, safety valve 4 and plug 8 are all serially connected with on delivery pipe 7 by T-valve.Like this, facilitated maintenance and changed.Certainly, can select other mounting means, the utility model embodiment does not do this particularly and limits yet.
In order further to improve calibration accuracy, the correcting device for pressure gauge that above-described embodiment provides, also comprises: be serially connected with the pressure regulator valve 2 on delivery pipe 7; Along MEDIA FLOW to, pressure regulator valve 2 is positioned at the upstream of master gauge 3 and plug 8.Like this, by the effect of pressure regulator valve 2, make the pressure in delivery pipe 7 more stable, the actual pressure that master gauge 3 and tensimeter to be calibrated 5 are measured is more stable, thereby has reduced calibration deviation, has effectively improved calibration accuracy.
The correcting device for pressure gauge that above-described embodiment provides, also can regulate measured pressure by pressure regulator valve 2, can calibrate tensimeter 5 to be calibrated by the force value of multiple points like this, has effectively improved calibration accuracy and calibration efficiency.Conventionally regulate pressure regulator valve 2, obtain the force value of three points, when the force value of 5 three points of tensimeter to be calibrated is when all the force value corresponding with master gauge 3 is identical, tensimeter 5 to be calibrated is qualified, otherwise tensimeter to be calibrated 5 is defective.
Preferably, in the correcting device for pressure gauge that above-described embodiment provides, along MEDIA FLOW to, pressure regulator valve 2, master gauge 3, safety valve 4, plug 8 and vent valve 6 are serially connected with on delivery pipe 7 successively.Certainly, also can select other erection sequence, for example, along MEDIA FLOW to, pressure regulator valve 2, master gauge 3, plug 8, safety valve 4 and vent valve 6 are serially connected with on delivery pipe 7 successively.
In order further to optimize technique scheme, the correcting device for pressure gauge that above-described embodiment provides, also comprises: housing 9; Wherein, master gauge 3, plug 8 and vent valve 6 all expose to housing 9.It should be noted that, the inlet end of delivery pipe 7 exposes to housing 9.Realize like this protection to delivery pipe 7 and each jointing and prevented dust, effectively having extended the serviceable life of this correcting device for pressure gauge.
Preferably, in the correcting device for pressure gauge that above-described embodiment provides, master gauge 3 and plug 8 are all positioned at the top of housing 9, and vent valve 6 is positioned at the side of housing 9.Like this, conveniently read the force value of master gauge 3 and tensimeter to be calibrated 5.Certainly, also can select other set-up modes, for example vent valve 6 is positioned at the top of housing 9.When this correcting device for pressure gauge also comprises: when pressure regulator valve 2 and safety valve 4, pressure regulator valve 2 is positioned at the side of housing 9, and pressure regulator valve 2 and vent valve 6 are all positioned at the homonymy of housing 9; Safety valve 4 is and the top of housing 9.It should be noted that, the top of housing 9 refers to, when this correcting device for pressure gauge uses, and housing 9 one end upward; The side of housing 9, refers to the one end except bottom and the top of housing 9.
In the correcting device for pressure gauge that above-described embodiment provides, the shape of housing 9 can be set according to actual needs.For the ease of manufacturing, preferably select housing 9 to be rectangular-shaped.Certainly, housing 9 also can be other shapes, such as cube-shaped or cylindric etc.
In the correcting device for pressure gauge that above-described embodiment provides, pressure source 1 can be source of the gas and also can be fluid supply, can select according to actual needs.Preferably, in above-mentioned correcting device for pressure gauge, pressure source 1 is source of the gas.
In order to improve reliability and to reduce costs, in the correcting device for pressure gauge that above-described embodiment provides, delivery pipe 7 is PE pipe, and wherein, PE is that the English of vinyon is write a Chinese character in simplified form.Certainly, also can select the delivery pipe of other materials, the utility model embodiment does not limit this.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a correcting device for pressure gauge, is characterized in that, comprising:
For the pressure source (1) of pressure is provided; The delivery pipe (7) being connected with described pressure source (1); Be serially connected with master gauge (3) and vent valve (6) on described delivery pipe (7); Be serially connected with on described delivery pipe (7) and for the plug (8) of tensimeter to be calibrated (5) is installed;
Wherein, along MEDIA FLOW to, described vent valve (6) is positioned at the downstream of described plug (8) and described master gauge (3).
2. correcting device for pressure gauge according to claim 1, is characterized in that, also comprises: be serially connected with the safety valve (4) on described delivery pipe (7); Along MEDIA FLOW to, described safety valve (4) is positioned at the upstream of described vent valve (6).
3. correcting device for pressure gauge according to claim 2, is characterized in that, described master gauge (3), described safety valve (4) and described plug (8) are all serially connected with on described delivery pipe (7) by T-valve.
4. correcting device for pressure gauge according to claim 2, is characterized in that, also comprises: be serially connected with the pressure regulator valve (2) on described delivery pipe (7); Along MEDIA FLOW to, described pressure regulator valve (2) is positioned at the upstream of described master gauge (3) and described plug (8).
5. correcting device for pressure gauge according to claim 4, it is characterized in that, along MEDIA FLOW to, described pressure regulator valve (2), described master gauge (3), described safety valve (4), described plug (8) and described vent valve (6) are serially connected with on described delivery pipe (7) successively.
6. correcting device for pressure gauge according to claim 1, is characterized in that, also comprises: housing (9); Wherein, described master gauge (3), described plug (8) and described vent valve (6) all expose to described housing (9).
7. correcting device for pressure gauge according to claim 6, is characterized in that, described master gauge (3) and described plug (8) are all positioned at the top of described housing (9), and described vent valve (6) is positioned at the side of described housing (9).
8. correcting device for pressure gauge according to claim 6, is characterized in that, described housing (9) is rectangular-shaped.
9. correcting device for pressure gauge according to claim 1, is characterized in that, described pressure source (1) is source of the gas.
10. according to the correcting device for pressure gauge described in any one in claim 1-9, it is characterized in that, described delivery pipe (7) is PE pipe.
CN201320843103.5U 2013-12-19 2013-12-19 A pressure gauge calibrating device CN203616052U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075842A (en) * 2014-07-22 2014-10-01 国家电网公司 Pressure gage detector
CN104729793A (en) * 2013-12-19 2015-06-24 珠海格力电器股份有限公司 Calibration device for pressure meter
CN105222952A (en) * 2015-10-13 2016-01-06 彭景吉 A kind of high-precision pressure gauge calibrating instrument digital control system
CN105445031A (en) * 2015-12-15 2016-03-30 中国燃气涡轮研究院 Small aero-engine test run stand thrust calibrating system
CN108397574A (en) * 2018-03-06 2018-08-14 苏州热工研究院有限公司 A kind of nuclear power plant's measurement standard soil resistant isolating valve and its application method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104729793A (en) * 2013-12-19 2015-06-24 珠海格力电器股份有限公司 Calibration device for pressure meter
CN104075842A (en) * 2014-07-22 2014-10-01 国家电网公司 Pressure gage detector
CN105222952A (en) * 2015-10-13 2016-01-06 彭景吉 A kind of high-precision pressure gauge calibrating instrument digital control system
CN105222952B (en) * 2015-10-13 2018-12-18 贵州安健环管理咨询有限公司 A kind of high-precision pressure gauge calibrating instrument digital control system
CN105445031A (en) * 2015-12-15 2016-03-30 中国燃气涡轮研究院 Small aero-engine test run stand thrust calibrating system
CN108397574A (en) * 2018-03-06 2018-08-14 苏州热工研究院有限公司 A kind of nuclear power plant's measurement standard soil resistant isolating valve and its application method
CN108397574B (en) * 2018-03-06 2020-01-03 苏州热工研究院有限公司 Anti-contamination isolation valve for metering standard device of nuclear power plant and use method of anti-contamination isolation valve

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