CN203981337U - There is the gas pressure pump of anti-secondary pollution function - Google Patents
There is the gas pressure pump of anti-secondary pollution function Download PDFInfo
- Publication number
- CN203981337U CN203981337U CN201420442886.0U CN201420442886U CN203981337U CN 203981337 U CN203981337 U CN 203981337U CN 201420442886 U CN201420442886 U CN 201420442886U CN 203981337 U CN203981337 U CN 203981337U
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- inlet pipe
- gas
- pipe
- tested table
- calibrating
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Abstract
The utility model relates to a kind of gas pressure pump with anti-secondary pollution function for gas gauge calibrating.Comprise supercharging device and the A stop valve being connected successively with it, A blowdown valve, the meticulous regulator of A, standard scale interface, inlet pipe, tested table, go out pipe, it is characterized in that being also included in and between inlet pipe and tested table interface, be also provided with a gas turnover tripping device, and with the reduction regulation device that goes out pipe and be connected.Above-mentioned gas turnover tripping device is one and is positioned at inlet pipe and tested table interface and goes out pipe, by inlet pipe and the structure that goes out the gas barrier in pipe.Obviously, the utility model is rational in infrastructure, simple to operate, easy to carry, and verification result is accurate, and to follow-up calibrating instrument non-secondary pollution, realizes the instrument in specialized range is examined and determine continuously, greatly improves calibrating efficiency.And can reduce tensimeter calibrating installation and set up the cost of measurement standard, and step-down is accurate, and personnel easy to use realize strict vertification regulation requirement.
Description
Technical field
The utility model relates to a kind of gas pressure pump with anti-secondary pollution function for gas gauge calibrating.
Background technology
Specify according to JJG52-2013 " flexible member formula general purpose pressure gauge, pressure vacuum meter and vacuum meter " and JJG49-2013 " flexible member formula precision pressure gauge and vacuum meter ": flexible member formula general purpose pressure gauge, pressure vacuum meter, vacuum meter, the forcing pump of flexible member formula precision pressure gauge (hereinafter to be referred as tensimeter) needs use taking gas as calibrating medium that the upper limit is not more than 0.25MPa measured in calibrating.The forcing pump taking gas as medium of prior art, there is the tested table gas piping overlap problem of turnover in its structure, often, completing after once calibrating, need to first dismantle instrument, cleans and pollute pipeline and associated components, and the calibrating time is long, and calibrating efficiency is low, wastes time and energy.
Be for example the above-mentioned tensimeter of oil to actuating medium, must before calibrating, first clean tensimeter, until without greasy dirt.If do not washed clean clearly, can pollute the tested table of forcing pump and follow-up calibrating successively, if the tensimeter of follow-up calibrating is the tensimeter of measuring oxygen, can gives in user's use procedure and bring potential safety hazard, when serious, may blast.
Be and for example the above-mentioned tensimeter of water or gas to actuating medium, due to working environment reason, its inner bourdon tube may and be not exclusively a kind of medium.For example waste gas header tensimeter is used for measuring exhaust gas pressure, but after work a period of time, show inner spring pipe and can contain oil water mixture, clean or do not wash clean clearly if such instrument does not add, being directly connected on forcing pump and carrying out verification, dirt can be in company with pressure surge, enter in verification system, pollution norms table and make press mechanism, stops up or blocks internal pressure pipeline, wearing and tearing or scratch containment member, affect accuracy of measurement or make its cisco unity malfunction, until damage.Simultaneously, the pipeline that gas enters tested table also can some be contaminated, even although isolator has been installed on existing forcing pump, also can pollute isolator, and then the taboo oil meter such as welding bottle tensimeter to follow-up calibrating causes secondary pollution, affect personnel, equipment, safety.
Summary of the invention
The object of this invention is to provide a kind of gas pressure pump with anti-secondary pollution function, to overcome the deficiencies in the prior art, improve calibrating efficiency and quality, and avoid the unsafe factor bringing because of calibration operation.
The utility model is to avoid the secondary pollution of tested table to follow-up calibrating instrument, and realize continuously and examining and determine, guarantee that from tested table gas out can not enter next tested table again,, in the time of Technical Design, makes tested table air inlet pipeline and outlet pipe not have overlapping.Realize this function, a gas turnover tripping device is set at the joint pipeline place of tested table specially, and increase again a reduction regulation device going out pipe port.
The structure that described gas turnover tripping device is on a joint pipeline that is arranged in tested table, relies on this tripping device inlet pipe can be separated with the gas that goes out pipe.Described gas turnover tripping device is by inlet pipe, goes out pipe, bell and enter to show tracheae to form, and by enter to show tracheae and as bell-mouthed bell by inlet pipe with go out the gas barrier in pipe, thereby realize the parts that the tested table gas of turnover separates.
Described reduction regulation device is a connection going out on pipe port, relying on this regulating device can realize calibrating medium uniflux, can not be back to the assembly on air inlet pipeline.Described reduction regulation device be one with go out pipe and be connected, the assembly being formed by the meticulous regulator of B, B blowdown valve, B stop valve and dropping equipment, realize the uniflux of medium by reduction regulation device, coordinate gas turnover tripping device to realize anti-secondary pollution.
In addition, the meticulous regulator of B in reduction regulation device can make pressure slowly reduce, and has effectively avoided in the time that inverted order is returned inspection, and the pressure very easily occurring, lower than nominal value, is violated the situation that vertification regulation requires.
The beneficial effects of the utility model are: entering to show tracheae and bell a can isolate inlet pipe with going out to manage completely, coordinates reduction regulation device, can realize the continuous calibrating measurement upper limit and be not more than 0.25MPa Bourdon tube pressure gauge, prevent tensimeter secondary pollution.Obviously, the utility model is rational in infrastructure, simple to operate, easy to carry, and verification result is accurate, and to follow-up calibrating instrument non-secondary pollution, realizes the instrument in specialized range is examined and determine continuously, greatly improves calibrating efficiency.Can reduce tensimeter calibrating installation and set up the cost of measurement standard, step-down is accurate, and personnel easy to use realize strict vertification regulation requirement.
Below in conjunction with drawings and Examples, the utility model is elaborated.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present utility model.
The cross-sectional schematic of Fig. 2 gas turnover of the present utility model tripping device structure.
Wherein, 1, supercharging device; 2, A stop valve; 3, A blowdown valve; 4, the meticulous regulator of A; 5, standard scale; 6, inlet pipe; 7, tested table; 8, go out pipe; 9, the meticulous regulator of B; 10, B blowdown valve; 11, B stop valve; 12, dropping equipment; 13 gas turnover tripping devices; 14, enter to show tracheae; 15 reduction regulation devices; A bell.
Embodiment
As Fig. 1, the utility model comprises supercharging device 1 and the A stop valve 2 being connected successively with it, A blowdown valve 3, the meticulous regulator 4 of A, standard scale interface 5, inlet pipe 6, tested table 7, goes out pipe 8, it is characterized in that it is also included in is also provided with a gas turnover tripping device 13 between inlet pipe 6 and tested table interface 7, and with go out the pipe 8 reduction regulation devices 15 that are connected (the dotted line frame of Fig. 1).As Fig. 2, above-mentioned gas turnover tripping device 13 is one and is positioned at inlet pipe 6 with tested table 7 interface and goes out pipe 8, by inlet pipe 6 and the structure 15 that goes out the gas barrier in pipe 8.
Described gas turnover tripping device 13 be arranged on inflow point be bell a enter to show tracheae 14, and the periphery of this bell a and inlet pipe 6 walls sealings join form one respectively with inlet pipe 6, go out to manage 8, three-dimensional pipeline that tested table 7 interface is connected.Described gas turnover tripping device 13 is by inlet pipe 6, goes out pipe 8, bell a and enter to show tracheae 14 to form, and by enter to show tracheae 14 and as bell-mouthed bell a by inlet pipe 6 with go out the gas barrier in pipe 8, thereby realize the separating component of the tested table gas of turnover.Can be made into product separately for this reason and conveniently be applied in the pipeline of corresponding gas gauge calibrating installation.
Described supercharging device 1 is the pressure generation part in CST1021 type Portable pneumatic forcing pump; Described dropping equipment 12 is the vacuum generation parts in CST1021 type Portable pneumatic forcing pump.
Described gas turnover tripping device 13 by inlet pipe 6, enter to show tracheae 14, bell a and go out pipe 8 to form.It is characterized in that can and going out pipe 8 isolation completely by inlet pipe 6 into table tracheae 14 and bell a.
Described reduction regulation device 15 is made up of the meticulous regulator 9 of B, B blowdown valve 10, B stop valve 11 and dropping equipment 12, realizes the uniflux of medium, coordinates gas turnover tripping device 13 to realize anti-secondary pollution.
Gas turnover tripping device of the present utility model, make while pressing in malleation, can make gas according to supercharging device 1, A stop valve, the meticulous regulator of A, standard scale, inlet pipe, tested table, go out the sequential flowing of pipe, the meticulous regulator of B, B stop valve, dropping equipment; In the time that malleation supercharging is examined and determine, make gas according to the meticulous regulator of A, A stop valve and the meticulous regulator of A, standard scale, inlet pipe, tested table, go out pipe, the meticulous regulator of B, B stop valve both direction sequential flowing; In the time that malleation step-down is examined and determine, make gas according to the meticulous regulator of A, A stop valve and the meticulous regulator of A, standard scale, inlet pipe, tested table, go out pipe, the meticulous regulator of B, B stop valve sequential flowing; In the time of malleation pressure release, make gas according to the meticulous regulator of A, A blowdown valve and the meticulous regulator of A, standard scale, inlet pipe, tested table, go out pipe, the meticulous regulator of B, B blowdown valve sequential flowing; Make while pressing in negative pressure, can make gas according to A stop valve, the meticulous regulator of A, standard scale, inlet pipe, tested table, go out the sequential flowing of pipe, the meticulous regulator of B, B stop valve, dropping equipment; In the time that negative pressure booster is examined and determine, make gas according to B stop valve, the meticulous regulator of B and A stop valve, the meticulous regulator of A, standard scale, inlet pipe, tested table, go out the sequential flowing of pipe, the meticulous regulator of B; In negative pressure when calibrating decompression, make gas according to the meticulous regulator of A, A stop valve and the meticulous regulator of A, standard scale, inlet pipe, tested table, go out pipe, the meticulous regulator of B, B stop valve both direction sequential flowing; In the time of negative pressure pressure release, make gas according to A blowdown valve, the meticulous regulator of A, standard scale, inlet pipe, tested table, go out pipe, the meticulous regulator of B, B stop valve sequential flowing.At above-mentioned four-stage, can not enter all the time inlet pipe by tested table effluent air (potpourri), can only flow into out pipe and discharge.Even if tested table contains oil, the pipeline of its pollution also only limits to out pipe and the meticulous regulator of B thereafter, B blowdown valve, B stop valve, dropping equipment pipeline therebetween.Because the gas that enters tested table can not pass through these pipelines and parts, therefore this tested table can not affect next tested table.
The above-mentioned supercharging device 1 being connected with A stop valve 2 is all a kind of helical pressure pump with the dropping equipment 12 being connected with B stop valve 11, as adopted pressure generator part and the vacuum generator part in CST1021 type Portable pneumatic forcing pump.
In calibrating, can pressure slowly be changed by the handle of the rotation meticulous regulator of A or the meticulous regulator of B, put situation about not being inconsistent with vertification regulation thereby avoid pressure to change the too fast calibrating of jumping over.
Operating process of the present utility model is as follows: install standard scale and tested table, read standard scale and tested meter reading, while implementing malleation calibrating, the handle of the meticulous regulator of A is rotated counterclockwise to stop (maximum), the handle of the meticulous regulator of B turns clockwise to stop (minimum), closes A blowdown valve, B blowdown valve, B stop valve, opens A stop valve, utilize supercharging device supercharging, make standard scale indicating value be slightly less than first malleation calibrating point; Close A stop valve, the handle of the meticulous regulator of rotation A increases pressure, and pointwise is boosted and examined and determine tested showing to maximum positive voltage force; The handle of the meticulous regulator of rotation B reduces pressure, and pointwise step-down is examined and determine tested table to first malleation calibrating point; Slowly open B blowdown valve, tested table and standard scale are communicated with atmosphere, complete the step-down calibrating at zero point; While implementing negative pressure calibrating, the handle of the meticulous regulator of A is rotated counterclockwise to stop (maximum), the handle of the meticulous regulator of B turns clockwise to stop (minimum), close A blowdown valve, B blowdown valve, A stop valve, open B stop valve, utilize dropping equipment step-down, make standard scale indicating value be slightly larger than first negative pressure calibrating point; Close B stop valve, the handle of the meticulous regulator of rotation B reduces pressure, tested the showing to peak suction force of stationary point step-down calibrating; The handle of the meticulous regulator of rotation A increases pressure, and pointwise supercharging is examined and determine tested table to first negative pressure calibrating point; Slowly open A blowdown valve, tested table and standard scale are communicated with atmosphere, complete the calibrating of boosting at zero point.Finally by resets such as the handles of the handle of A blowdown valve, B blowdown valve, A stop valve, B stop valve, the meticulous regulator of A, the meticulous regulator of B.
According to above workflow, can guarantee that malleation calibrating is boosted boosts and step-down process with step-down and negative pressure calibrating, and pressure leak process no longer enters inlet pipe by Bourdon tube pressure gauge effluent air (potpourri), thereby avoid the accredited manometer of contaminate subsequent.
The utility model is applicable to the manometric calibrating of following five class: measure flexible member formula general purpose pressure gauge, pressure vacuum meter, vacuum meter and flexible member formula precision pressure gauge and vacuum meter that the upper limit is not more than 0.25MPa.
Claims (6)
1. one kind has the gas pressure pump of anti-secondary pollution function, comprise supercharging device (1) with the A stop valve (2) being connected successively with it, A blowdown valve (3), the meticulous regulator of A (4), standard scale (5), inlet pipe (6), tested table (7) and go out pipe (8), it is characterized in that it also comprises the gas turnover tripping device (13) being positioned between inlet pipe (6) and tested table (7) interface, with the reduction regulation device (15) that goes out pipe (8) and be connected.
2. gas pressure pump as claimed in claim 1, it is characterized in that described gas turnover tripping device (13) is one and is positioned at inlet pipe (6) with tested table (7) interface and goes out pipe (8), by inlet pipe (6) with go out to manage the structure of the gas barrier in (8).
3. gas pressure pump as claimed in claim 1 or 2, it is characterized in that described gas turnover tripping device (13) be arranged on inflow point be bell (a) enter to show tracheae (14), and the periphery of this bell (a) and the sealing of inlet pipe (6) wall join form one respectively with inlet pipe (6), go out to manage the three-dimensional pipeline that (8), tested table (7) interface are connected.
4. gas pressure pump as claimed in claim 1, is characterized in that above-mentioned reduction regulation device (15) is connected and forms with B stop valve (11) and dropping equipment (12) by the meticulous regulator of B (9), B blowdown valve (10).
5. gas pressure pump as claimed in claim 1, is characterized in that described supercharging device (1) is the pressure generator in CST1021 type Portable pneumatic forcing pump.
6. gas pressure pump as claimed in claim 1, is characterized in that described dropping equipment (12) is the vacuum generator in CST1021 type Portable pneumatic forcing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442886.0U CN203981337U (en) | 2014-08-06 | 2014-08-06 | There is the gas pressure pump of anti-secondary pollution function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442886.0U CN203981337U (en) | 2014-08-06 | 2014-08-06 | There is the gas pressure pump of anti-secondary pollution function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981337U true CN203981337U (en) | 2014-12-03 |
Family
ID=51978767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442886.0U Withdrawn - After Issue CN203981337U (en) | 2014-08-06 | 2014-08-06 | There is the gas pressure pump of anti-secondary pollution function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-08-06 CN CN201420442886.0U patent/CN203981337U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20141203 Effective date of abandoning: 20161109 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |