CN203241190U - Instrument pressure gauge capable of intuitively reading volume of gas in compressed gas cylinder - Google Patents
Instrument pressure gauge capable of intuitively reading volume of gas in compressed gas cylinder Download PDFInfo
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- CN203241190U CN203241190U CN 201320318614 CN201320318614U CN203241190U CN 203241190 U CN203241190 U CN 203241190U CN 201320318614 CN201320318614 CN 201320318614 CN 201320318614 U CN201320318614 U CN 201320318614U CN 203241190 U CN203241190 U CN 203241190U
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- compressed gas
- gas cylinder
- volume
- gas
- pressure gauge
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses an instrument pressure gauge capable of intuitively reading volume of gas in a compressed gas cylinder. The instrument pressure gauge is characterized in that a pressure gauge communicated with the compressed gas cylinder is arranged, two groups of scale values are marked on scale positions of a dial of the pressure gauge, one group of scale values represents a pressure detection value P of compressed gas in the compressed gas cylinder, the other group of scale values represents a volume conversion value V of the compressed gas in the compressed gas cylinder, and the volume conversion value V is converted from the pressure detection value P on a corresponding scale position. The instrument pressure gauge is capable of intuitively and accurately displaying volume of the compressed gas in the compressed gas cylinder under a working pressure state, can be used for conveniently and quickly acquiring volume of remaining gas and is especially suitable for a compressed gas cylinder connected with an instrument through a flow meter.
Description
Technical field
The utility model relates to tensimeter, more specifically says can intuitively read the interior gas of compressed gas cylinder at the instrument tensimeter of working pressure state lower volume.
Background technology
Along with the progress and development of science and technology, a large amount of pressure gass are applied in scientific research, production, the life.
The instrument tensimeter is very important equipment in gas demarcation and the pressure gas purge, is widely used in characterizing gaseous matter residual state amount in the compressed gas cylinder.The tests such as gas demarcation of using in the process of scientific research at present, all adopt the size of after separating the pressure valve decompress(ion), controlling gas flow by gas meter, the gas flow that flows out compressed gas cylinder is reached by demarcation (calibrating) but the usable range value of instrument, instrument, connect gas meter after the processes such as the pressure gas purging instrument and meter in the same employing compressed gas cylinder also adopt and carry out flow metering.
Can reach control uninterrupted value though connect gas meter after of the prior art, but can't estimate in the compressed gas cylinder residual gas service time, if the residual gas duration shortly then may bring considerable influence to correlated results in high-precision calibrating or scientific experiment process.Also may work the mischief because the gas flow deficiency is moved instrument.
The utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, a kind of instrument tensimeter that can intuitively read gas volume in the compressed gas cylinder is provided, in order to quantize to judge in the gas cylinder that residual compression gas is in lower energy of certain flow condition service time, the harm of avoiding the gas flow deficiency that instrument operation is caused is for production economy and safety in operation provide safeguard.
The utility model is that the technical solution problem adopts following technical scheme:
The utility model can intuitively read the instrument tensimeter of gas volume in the compressed gas cylinder, its design feature is: the tensimeter that is connected with compressed gas cylinder is set, be marked with two groups of scale values in the scale position of described manometric dial plate, one group is the detected pressure value P of pressure gas in the compressed gas cylinder, another group is the volume scaled value V of pressure gas in the compressed gas cylinder, and described volume scaled value V is converted by the detected pressure value P on the corresponding scale position to obtain.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model is accurate in the intuitive display of working pressure state lower volume for pressure gas in the compressed gas cylinder, can obtain quickly and easily the residual gas volume;
2, use the utility model can accurately declare the volume of remaining pressure gas in the compressed gas cylinder, by entering the operational time of flowmeter flow estimation residual gas before the instrument, the harm that can effectively avoid the gas flow deficiency that instrument operation is caused is for production economy and safety in operation provide safeguard.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is manometric dial plate synoptic diagram in the utility model;
Number in the figure: 1 tensimeter; 2 dial plates; 3 reduction valve; 4 compressed gas cylinders.
Embodiment
Referring to Fig. 1, Fig. 2, the instrument that can intuitively read gas volume in the compressed gas cylinder in the present embodiment with manometric form is: the tensimeter 1 that is connected with compressed gas cylinder 4 is set, scale position at the dial plate 2 of tensimeter 1 is marked with two groups of scale values, one group is the detected pressure value P of pressure gas in the compressed gas cylinder 4, another group is the volume scaled value V of pressure gas in the compressed gas cylinder 4, and volume scaled value V is converted by the detected pressure value P on the corresponding scale position to obtain.
In the implementation, tensimeter 1 is jointly to arrange with reduction valve 3.
Volume scaled value V is converted by the detected pressure value P on the corresponding scale position to obtain as follows:
According to Bo Yier-boyle's law, quality m is certain, and in the constant situation of temperature T, the volume scaled value V of the detected pressure value P of pressure gas and pressure gas has following relation:
PV
1=P
1V
Wherein:
V
1Be the volume of compressed gas cylinder, V in the present embodiment
1=40L;
P
1Pressure for air release in the compressed gas cylinder out the time, general gas is demarcated and pressure gas adopts 0.2Mpa-0.6Mpa, P in the present embodiment when purging
1=0.2Mpa;
With V
1, P
1Occurrence substitution formula, the pass that can release the volume scaled value V of the detected pressure value P of pressure gas in the present embodiment and pressure gas is: V=200 * P.
As shown in Figure 2:
When the detected pressure value P of pressure gas was 0Mpa, corresponding volume scaled value V was 0L;
When the detected pressure value P of pressure gas was 5Mpa, corresponding volume scaled value V was 1000L;
When the detected pressure value P of pressure gas was 10Mpa, corresponding volume scaled value V was 2000L;
When the detected pressure value P of pressure gas was 15Mpa, corresponding volume scaled value V was 3000L;
When the detected pressure value P of pressure gas was 20Mpa, corresponding volume scaled value V was 4000L;
When the detected pressure value P of pressure gas was 25Mpa, corresponding volume scaled value V was 5000L;
Compressed gas cylinder is when using with firm discharge S, and by reading volume scaled value V, the up time T of residual gas is as can be known: T=V/S.
Claims (1)
1. instrument tensimeter that can intuitively read gas volume in the compressed gas cylinder, it is characterized in that: the tensimeter (1) that is connected with compressed gas cylinder (4) is set, scale position at the dial plate (2) of described tensimeter (1) is marked with two groups of scale values, one group is the detected pressure value P of pressure gas in the compressed gas cylinder (4), another group is the volume scaled value V of pressure gas in the compressed gas cylinder (4), and described volume scaled value V is converted by the detected pressure value P on the corresponding scale position to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320318614 CN203241190U (en) | 2013-06-04 | 2013-06-04 | Instrument pressure gauge capable of intuitively reading volume of gas in compressed gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320318614 CN203241190U (en) | 2013-06-04 | 2013-06-04 | Instrument pressure gauge capable of intuitively reading volume of gas in compressed gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241190U true CN203241190U (en) | 2013-10-16 |
Family
ID=49318475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320318614 Expired - Fee Related CN203241190U (en) | 2013-06-04 | 2013-06-04 | Instrument pressure gauge capable of intuitively reading volume of gas in compressed gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644263A (en) * | 2016-12-09 | 2017-05-10 | 陈春来 | Multi-reading error-free pressure meter |
| CN112393841A (en) * | 2019-08-19 | 2021-02-23 | 乔治洛德方法研究和开发液化空气有限公司 | Double-scale pressure gauge for a pressurized fluid container |
-
2013
- 2013-06-04 CN CN 201320318614 patent/CN203241190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644263A (en) * | 2016-12-09 | 2017-05-10 | 陈春来 | Multi-reading error-free pressure meter |
| CN112393841A (en) * | 2019-08-19 | 2021-02-23 | 乔治洛德方法研究和开发液化空气有限公司 | Double-scale pressure gauge for a pressurized fluid container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20160604 |