CN203310571U - Device used for calibrating multi-medium spring tube type pressure gauge - Google Patents
Device used for calibrating multi-medium spring tube type pressure gauge Download PDFInfo
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- CN203310571U CN203310571U CN2013204159785U CN201320415978U CN203310571U CN 203310571 U CN203310571 U CN 203310571U CN 2013204159785 U CN2013204159785 U CN 2013204159785U CN 201320415978 U CN201320415978 U CN 201320415978U CN 203310571 U CN203310571 U CN 203310571U
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Abstract
The utility model relates to a device used for calibrating a multi-medium spring tube type pressure gauge. The device comprises a water tank, and a pre-pressure-generating device, a stop valve, a supercharging device, a standard meter, an inlet pipe, an outlet pipe, a pressure release valve and a waste water tank which are successively connected with the water tank, and is characterized in that the device also comprises a pressure reduction device connected with the pressure release valve, and a joint of a meter to be calibrated is provided with a liquid in-out separating device. The liquid in-out separating device is a structure body positioned on the joint pipeline of the meter to be calibrated and used for isolating liquid in the inlet pipe and in the outlet pipe with the help of a separator plate. Obviously, the device is capable of preventing pollution from subsequent instruments to be calibrated and detecting instruments in a prescribed range safely and continuously, calibration results are accuracy, calibration efficiency is largely improved, and calibration cost can be effectively reduced; and the device is portable and easy to operate.
Description
Technical field
The utility model relates to a kind of calibrating installation for the multimedium Bourdon tube pressure gauge.
Background technology
According to JJG52-1999 " General Manometer of Elastic Tube, pressure vacuum meter and vacuum meter " and JJG49-1999 " spring-tube type precision pressure gauge and vacuum meter " regulation: calibrating General Manometer of Elastic Tube commonly used, the spring-tube type precision pressure gauge need to use with the forcing pump of liquid as medium, specifically comprise and measure the General Manometer of Elastic Tube of the upper limit between 0.25MPa and 60MPa, measuring spring-tube type precision pressure gauge and the actuating medium of the upper limit between 2.5MPa and 60MPa is liquid, measure the spring-tube type precision pressure gauge of the upper limit between 0.25MPa and 2.5MPa.
The liquid medium of current forcing pump as calibrating installation is divided into two classes, is respectively water and oil.Its structure is divided into two kinds, a kind ofly is that medium circulation used, and another kind is the acyclic use of medium.
Wherein, to actuating medium, can use the forcing pump calibrating of aqueous medium or oily medium for the above-mentioned tensimeter of oil.Use oily pressure medium pump can increase laboratory equipment quantity, cost effectiveness is low.While using the calibrating of aqueous medium forcing pump, usually between tested table and forcing pump, increase an isolator.Between tested table after the installation isolator and standard scale, difference in height is arranged, need to revise when data are processed, the calibrating time increases.If isolator is installed, just do not use the forcing pump calibrating that aqueous medium circulates, what the oil in tested table can enter forcing pump makes the pressure pipe road, and the non-oily pressure medium table of follow-up calibrating is caused to secondary pollution; Even use the acyclic mobile forcing pump calibrating of aqueous medium, also can exist due to the pipeline that aqueous medium enters tested table and flows out tested table overlappingly, what make that oil enters forcing pump makes the pressure pipe road, and the non-oily pressure medium table of follow-up calibrating is caused to secondary pollution.
Usually, the above-mentioned tensimeter that is water or gas to actuating medium can use aqueous medium or the calibrating of oily pressure medium pump.Use the forcing pump calibrating of oily medium, must the tensimeter after calibrating be cleaned, until without greasy dirt, the calibrating time is long, calibrating efficiency is low; Unclean if cleaned, be used to the tensimeter of measuring oxygen, can blast in use.Simultaneously, due to the working environment reason, take water or gas as the bourdon tube of the Bourdon tube pressure gauge inside of medium and be not exclusively a kind of medium.As the waste gas header tensimeter, for measuring exhaust gas pressure, can contain oil water mixture but show the inner spring pipe after work a period of time.If such instrument adds, do not clean or clean unclean, just can not be directly connected on forcing pump and carry out verification, otherwise dirt can be in company with pressure surge, enter in measuring system, pollution norms table and make press mechanism, stop up or block the internal pressure pipeline, wearing and tearing or scratch containment member, affect accuracy of measurement or make its cisco unity malfunction, until damage.Even what forcing pump adopted is the acyclic principle of work of medium, liquid enters the pipeline of tested table and also can some understand contaminated.If isolator is installed on forcing pump, can pollute isolator, and then the taboo oil meters such as welding bottle tensimeter of follow-up calibrating are caused to secondary pollution, when serious, can blast.
In addition, existing matured product utilizes the blowdown valve inverted order to return inspection mostly, is easy to like this build-up of pressure and leaks too much, makes actual pressure value lower than the calibrating point value.If supercharging reaches the calibrating point value again, can violate the vertification regulation requirement, tend to the situation that occurs that the standard value recorded and friction error numerical value and actual conditions are not inconsistent, cause the tensimeter that does not meet accuracy class own to be mistaken as qualified use.
Summary of the invention
The purpose of this utility model is to provide a kind of calibrating installation for the multimedium Bourdon tube pressure gauge, to improve calibrating efficiency, reduces the secondary pollution of calibrating funds demand and instrument, overcomes the deficiencies in the prior art.
The utility model is on the basis of the acyclic calibrating installation of aqueous medium, for thoroughly avoiding the secondary pollution of tested table to follow-up calibrating instrument, namely guarantees can again not enter next tested table from the liquid flowed out tested table, thereby realizes calibrating continuously.Realize this function, a liquid turnover tripping device is set in the pipeline position of tested table again specially.Described liquid turnover tripping device is a joint pipeline that is arranged in tested table, a dividing plate is set by the structure of the liquid of water inlet pipe and rising pipe isolation, relies on this dividing plate realization that the liquid in water inlet pipe and rising pipe is isolated.Be that described liquid turnover tripping device is a three-dimensional pipeline be connected with tested table, blowdown valve, standard scale respectively, by dividing plate, will pass in and out the separation of tested table liquid, realize pollution-free to follow-up calibrating instrument.
In addition, the situation of pressure lower than nominal value, violation vertification regulation occur in when inverted order is returned inspection, avoiding operating, need in calibrating installation, increase the micromatic setting that fineness is enough and guarantee that pressure slowly reduces, after blowdown valve, increase specially a dropping equipment.Described dropping equipment is the helical pressure pump in CST1006 type high-pressure pump.
Therefore, the technical solution of the utility model comprise tank be connected successively with it make in advance pressure device, stop valve, supercharging device, standard scale, water inlet pipe, rising pipe, blowdown valve and waste water tank, it is characterized in that it also comprises a dropping equipment be connected with blowdown valve, and in the joint of tested table, also be provided with a liquid turnover tripping device.Described liquid turnover tripping device is in a pipeline of the joint at tested table, a dividing plate is set by the structure of the isolation of the liquid in water inlet pipe and rising pipe.
Consider versatility and be convenient to universal and application, aforesaid liquid is passed in and out to tripping device and be made into specially an independent three-dimensional connecting tube, described liquid turnover tripping device is the three-dimensional pipeline that comprises inlet pipe, goes out pipe, isolated tube, and a dividing plate is arranged by inlet pipe in isolated tube and go out the pipe isolation.
Obviously, the utility model can be realized follow-up calibrating instrument pollution-free, and can be to the instrument safety continuous detecting in specialized range, and verification result is accurate, greatly improves calibrating efficiency, and can effectively reduce the calibrating cost, easy to carry, simple to operate.
Below in conjunction with drawings and Examples, the utility model is elaborated.
The accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model.
The structural representation of Fig. 2 liquid turnover of the present utility model tripping device.
Wherein, 1, tank; 2, make in advance pressure device; 3, stop valve; 4, supercharging device; 5, standard scale; 6, water inlet pipe; 7, rising pipe; 8, blowdown valve; 9, waste water tank; 10, dropping equipment; 11, liquid turnover tripping device; 12, tested table; 13, dividing plate; 14, inlet pipe; 15, go out pipe; 16, isolated tube.
Embodiment
As Fig. 1, the utility model comprise tank 1 be connected successively with it make in advance pressure device 2, stop valve 3, supercharging device 4, standard scale 5, water inlet pipe 6, rising pipe 7, blowdown valve 8 and waste water tank 9, it is characterized in that it also comprises a dropping equipment 10 be connected with blowdown valve 8, and at the joint pipeline place of tested table 12, also be provided with a liquid turnover tripping device 11.
Described liquid turnover tripping device 11 the simplest structures are a dividing plate 13 to be set by the structure of the isolation of the liquid in water inlet pipe 6 and rising pipe 7 in the joint pipeline of tested table.Be that described liquid turnover tripping device 11 is three-dimensional pipelines that are connected with tested table 12, blowdown valve 8, standard scale 5 respectively, by dividing plate 13, realize the separation of tested table 12 liquid of turnover.
As Fig. 2, consider versatility and be convenient to popularization and application, liquid can be passed in and out to tripping device 11 and be made into specially an independent three-dimensional connecting tube, be that liquid turnover tripping device 11 is the three-dimensional pipelines that comprise inlet pipe 14, go out pipe 15, isolated tube 16, and a dividing plate 13 arranged by inlet pipe 14 in isolated tube 16 and go out pipe 15 isolation.During convenient the use, as long as the three-dimensional pipeline by described liquid turnover tripping device 11 these independent members, relying on simply is threaded respectively is connected and gets final product with the water inlet pipe 6 of the rising pipe 7 of tested table 12, blowdown valve 8 one sides, standard scale 5 one sides, the liquid that so just will pass in and out in tested table 12 by dividing plate 13 is disconnected from each other, while having realized continuous detecting, can not pollute follow-up detected instrument.
Liquid turnover tripping device of the present utility model, can make the flow direction of the liquid of the stages of examining and determine change.Making in advance while pressing, can make water according to tank, make in advance the sequential flowing of pressure device, supercharging device, standard scale, water inlet pipe, tested table, rising pipe, blowdown valve, dropping equipment; When supercharging is examined and determine, water is flowed according to supercharging device, stop valve and supercharging device, standard scale, water inlet pipe, tested table, rising pipe, blowdown valve, dropping equipment both direction; During the step-down calibrating, water is flowed according to stop valve, supercharging device, standard scale, water inlet pipe, tested table, rising pipe, blowdown valve, dropping equipment; During pressure release, water is flowed according to stop valve, supercharging device, standard scale, water inlet pipe, tested table, rising pipe, blowdown valve, waste water tank and dropping equipment, blowdown valve, waste water tank both direction.At above-mentioned four-stage, the liquid gone out by tested surface low can not enter water inlet pipe all the time, can only together with the water of suction pipeline, flow into waste water tank through outlet pipeline.Even tested table contains oil, the pipeline of its pollution also only limits to rising pipe, dropping valve, dropping equipment, waste water tank and pipeline therebetween, because the liquid that enters tested table can not pass through these pipelines and parts, so this tested table can not affect next tested table.
The above-mentioned dropping equipment 10 be connected with blowdown valve 8 is a kind of helical pressure pumps.As adopt the helical pressure pump in CST1006 type high-pressure pump.Dropping equipment in the present invention can make pressure slowly reduce after making it to arrive the gauge measurement upper limit when detecting by the handle that is rotated counterclockwise dropping equipment, thereby avoids occurring the situation that step-down is too fast, be not inconsistent lower than nominal value and vertification regulation.
Calibrating operating process of the present utility model is as follows: before implementing calibrating, by the tank water filling; By the emptying of waste water tank waste water; Open stop valve, close blowdown valve; Turn on tested table plug, utilize and make in advance the pressure device supercharging, water is flowed out from tested meter connector; Turn on the standard scale plug; Open blowdown valve; Supercharging device is rotated counterclockwise to terminal, the dropping equipment dextrorotation is gone to terminal.Standard scale and tested table are accessed respectively to standard scale joint and tested meter connector, read standard scale and tested table numerical value at zero point, close afterwards blowdown valve.Utilization is made in advance pressure device pressure is reached to first calibrating point, reads standard scale and tested meter reading; After arriving and making in advance and press limit, close stop valve, utilize supercharging device to turn clockwise progressively to increase the pressure pointwise to reach the measurement upper limit, reading numerical values successively.During step-down, dropping equipment is rotated counterclockwise reduction pressure, and pointwise arrives first calibrating point, reading numerical values successively.Afterwards, open blowdown valve tested table and standard scale are communicated with atmosphere, complete the step-down calibrating at zero point, namely examine and determine complete.Afterwards, supercharging device and dropping equipment are rotated to original position.According to above workflow, the liquid that can guarantee to boost, be flowed out by Bourdon tube pressure gauge when step-down and pressure release no longer enters water inlet pipe, thereby avoids the accredited manometer of contaminate subsequent and make in advance pressure device and supercharging device.
The utility model can be applicable to following three kinds of manometric calibratings widely: measure the General Manometer of Elastic Tube of the upper limit between 0.25MPa and 60MPa; Actuating medium is liquid, measures the spring-tube type precision pressure gauge of the upper limit between 0.25MPa and 2.5MPa; Measure the spring-tube type precision pressure gauge of the upper limit between 2.5MPa and 60MPa.
Claims (4)
1. calibrating installation for the multimedium Bourdon tube pressure gauge, it comprise tank (1) be connected successively with it make in advance pressure device (2), stop valve (3), supercharging device (4), standard scale (5), water inlet pipe (6), rising pipe (7), blowdown valve (8) and waste water tank (9), it is characterized in that it also comprises a dropping equipment (10) be connected with blowdown valve (8), and at the joint pipeline place with tested table (12), also be provided with a liquid turnover tripping device (11).
2. calibrating installation as claimed in claim 1, is characterized in that described dropping equipment (10) is the helical pressure pump adopted in CST1006 type high-pressure pump.
3. calibrating installation as claimed in claim 1, it is characterized in that described liquid turnover tripping device (11) be one in the joint pipeline of tested table (12), the structure that a dividing plate (13) is isolated the liquid in water inlet pipe (6) and rising pipe (7) is set.
4. calibrating installation as claimed in claim 1, it is characterized in that described liquid turnover tripping device (11) is the three-dimensional pipeline that comprises inlet pipe (14), goes out pipe (15) and isolated tube (16), and in isolated tube (16), be provided with a dividing plate (13) by inlet pipe (14) and go out pipe (15) isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204159785U CN203310571U (en) | 2013-07-12 | 2013-07-12 | Device used for calibrating multi-medium spring tube type pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204159785U CN203310571U (en) | 2013-07-12 | 2013-07-12 | Device used for calibrating multi-medium spring tube type pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310571U true CN203310571U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204159785U Withdrawn - After Issue CN203310571U (en) | 2013-07-12 | 2013-07-12 | Device used for calibrating multi-medium spring tube type pressure gauge |
Country Status (1)
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| CN (1) | CN203310571U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353373A (en) * | 2013-07-12 | 2013-10-16 | 中国人民解放军91663部队 | Calibration device used for multi-medium spring-tube pressure gauge |
| CN104266791A (en) * | 2014-08-06 | 2015-01-07 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| CN105222952A (en) * | 2015-10-13 | 2016-01-06 | 彭景吉 | A kind of high-precision pressure gauge calibrating instrument digital control system |
| CN114486081A (en) * | 2021-12-28 | 2022-05-13 | 安徽云蒙仪表有限公司 | Instrument gas tightness detection device |
-
2013
- 2013-07-12 CN CN2013204159785U patent/CN203310571U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353373A (en) * | 2013-07-12 | 2013-10-16 | 中国人民解放军91663部队 | Calibration device used for multi-medium spring-tube pressure gauge |
| CN103353373B (en) * | 2013-07-12 | 2016-08-10 | 中国人民解放军91663部队 | Assay device for multimedium Bourdon tube pressure gauge |
| CN104266791A (en) * | 2014-08-06 | 2015-01-07 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| CN104266791B (en) * | 2014-08-06 | 2017-01-25 | 中国人民解放军91663部队 | Gas pressure pump with secondary pollution preventing function |
| 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 |
| CN114486081A (en) * | 2021-12-28 | 2022-05-13 | 安徽云蒙仪表有限公司 | Instrument gas tightness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20160810 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |