CN204093403U - A kind of distributing instrument pressure equaliser - Google Patents
A kind of distributing instrument pressure equaliser Download PDFInfo
- Publication number
- CN204093403U CN204093403U CN201420554145.1U CN201420554145U CN204093403U CN 204093403 U CN204093403 U CN 204093403U CN 201420554145 U CN201420554145 U CN 201420554145U CN 204093403 U CN204093403 U CN 204093403U
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- Prior art keywords
- pipeline
- air bag
- distributing instrument
- magnetic valve
- pressure
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Abstract
The utility model discloses a kind of distributing instrument pressure equaliser, comprise the Primordial Qi pipeline and nitrogen pipeline that are connected with distributing instrument respectively; The airintake direction of Primordial Qi pipeline is provided with successively the first proportion magnetic valve, the first air bag, the first pressure sensor is arranged on the Primordial Qi pipeline between the first air bag and distributing instrument; The airintake direction of nitrogen pipeline is provided with successively the second proportion magnetic valve, the second air bag, second pressure sensor is arranged on the nitrogen pipeline between the second air bag and distributing instrument, structure is simple, easy to use, by the way of electric-mechanic control system, gas pipeline arranges air bag, and buffering regulates pressure, thus distribution precision is greatly improved.
Description
Technical field
The utility model relates to a kind of pressure equaliser, and specifically a kind of distributing instrument pressure equaliser, belongs to technical field of chemistry.
Background technology
The gas that modern industry is produced and in chemical experiment, various concentration all will be used in a lot of aspect, as the demarcation of production scene instrument, the contrast experiment etc. that laboratory is carried out.If use the bottled gas of normal concentration, although can satisfy the demand, all to buy outfit for often kind of concentration gases, the accumulation of a large amount of steel cylinder will be caused like this, not only occupy a large amount of places but also can potential safety hazard be increased, also take substantial contribution.Thus distributing instrument has just been used.Distributing instrument is exactly that two kinds of different gas ratios are as requested carried out dilution mixture, obtains the equipment of various concentration gases.So just can use little several gases, utilize distributing instrument to configure the gas of required concentration at any time
But existing distributing instrument also exists certain defect mostly, make the accuracy of distributing instrument not high, and the key issue affecting distribution precision is, two-way raw-gas is not consistent completely from high-pressure cylinder flow during distributing instrument executive component is cut down in decompression, so there is the problem that distribution precision is not high.
Utility model content
Problem to be solved in the utility model is for above deficiency, proposes a kind of distributing instrument pressure equaliser, overcomes the deficiencies in the prior art, by the way of electric-mechanic control system, gas pipeline arranges air bag, and buffering regulates pressure, improves distribution precision.
In order to solve the problem, the technical solution of the utility model is: a kind of distributing instrument pressure equaliser, is characterized in that: described distributing instrument pressure equaliser comprises the Primordial Qi pipeline and nitrogen pipeline that are connected with distributing instrument respectively;
The airintake direction of described Primordial Qi pipeline is provided with successively the first proportion magnetic valve, the first air bag, the first pressure sensor is arranged on the Primordial Qi pipeline between the first air bag and distributing instrument;
The airintake direction of described nitrogen pipeline is provided with successively the second proportion magnetic valve, the second air bag, the second pressure sensor is arranged on the nitrogen pipeline between the second air bag and distributing instrument.
A kind of prioritization scheme, described first pressure sensor, the second pressure sensor are electrically connected with single-chip microcomputer, and single-chip microcomputer drives the first proportion magnetic valve, the second proportion magnetic valve action through drive circuit.
During work, gather the pressure signal of Primordial Qi pipeline and nitrogen pipeline, export control signal by analysis after process and adjust the first proportion magnetic valve and the second proportion magnetic valve, the magnetic valve in the gas circuit making pressure large turns down, and the magnetic valve in the gas circuit that pressure is little is opened greatly; First air bag and the second air bag play cushioning effect, make air-flow more steady, thus it are just the same to utilize the pressure balance after adjustment air bag to realize the flow of two-way air-flow when entering distributing instrument, thus reach very high distribution precision.Through product inspection, error is less than 1% of joined concentration.
The utility model adopts above technical scheme, has the following advantages: structure is simple, easy to use, by the way of electric-mechanic control system, gas pipeline arranges air bag, and buffering regulates pressure, thus distribution precision is greatly improved.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of distributing instrument pressure equaliser in the utility model embodiment;
Accompanying drawing 2 is the electrical schematic diagram of distributing instrument pressure equaliser in the utility model embodiment;
In figure,
1-first pressure sensor, 2-second pressure sensor, 3-Primordial Qi pipeline, 4-nitrogen pipeline, 5-first air bag, 6-second air bag, 7-first proportion magnetic valve, 8-second proportion magnetic valve, 9-distributing instrument, 10-single-chip microcomputer, 11-drive circuit.
Detailed description of the invention
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment 1, as shown in Figure 1 and Figure 2, a kind of distributing instrument pressure equaliser, comprise the Primordial Qi pipeline 3 and nitrogen pipeline 4 that are connected with distributing instrument 9 respectively, the airintake direction of Primordial Qi pipeline 3 being provided with successively the first proportion magnetic valve 7, first air bag 5, first pressure sensor 1 is arranged on the Primordial Qi pipeline 3 between the first air bag 5 and distributing instrument 9;
The airintake direction of nitrogen pipeline 4 is provided with successively the second proportion magnetic valve 8, second air bag 6, second pressure sensor 2 to be arranged on the nitrogen pipeline 4 between the second air bag 6 and distributing instrument 9.
First pressure sensor 1, second pressure sensor 2 is electrically connected with single-chip microcomputer 10, and single-chip microcomputer 10 drives the first proportion magnetic valve 7, second proportion magnetic valve 8 action through drive circuit 11.
During work, single-chip microcomputer gathers the pressure signal of Primordial Qi pipeline 3 and nitrogen pipeline 4, export control signal by analysis after process and adjust the first proportion magnetic valve 7 and the second proportion magnetic valve 8, the magnetic valve in the gas circuit making pressure large turns down, and the magnetic valve in the gas circuit that pressure is little is opened greatly; First air bag 5 and the second air bag 6 cushioning effects, make air-flow more steady, thus it is just the same to utilize the pressure balance after adjustment air bag to realize the flow of two-way air-flow when entering distributing instrument, thus reaches very high distribution precision.Through product inspection, error is less than 1% of joined concentration.
Also without single-chip microcomputer, but display unit can be adopted by the Signal aspects of the first pressure sensor 1, second pressure sensor 2 out, more manually regulate the first proportion magnetic valve 7, second proportion magnetic valve 8 action to realize regulating pressure.
Also traditional circuit can be adopted to realize the signal of detection first pressure sensor 1, second pressure sensor 2, then drive the first proportion magnetic valve 7, second proportion magnetic valve 8 action by drive circuit.Drive circuit adopts circuit traditional at present, and those skilled in the art, according to the utility model, can design interlock circuit and realize.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a distributing instrument pressure equaliser, is characterized in that: described distributing instrument pressure equaliser comprises the Primordial Qi pipeline (3) and nitrogen pipeline (4) that are connected with distributing instrument (9) respectively;
The airintake direction of described Primordial Qi pipeline (3) is provided with successively the first proportion magnetic valve (7), the first air bag (5), the first pressure sensor (1) is arranged on the Primordial Qi pipeline (3) between the first air bag (5) and distributing instrument (9);
The airintake direction of described nitrogen pipeline (4) is provided with successively the second proportion magnetic valve (8), the second air bag (6), the second pressure sensor (2) is arranged on the nitrogen pipeline (4) between the second air bag (6) and distributing instrument (9).
2. distributing instrument pressure equaliser as claimed in claim 1, it is characterized in that: described first pressure sensor (1), the second pressure sensor (2) are electrically connected with single-chip microcomputer (10), single-chip microcomputer (10) drives the first proportion magnetic valve (7), the second proportion magnetic valve (8) action through drive circuit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554145.1U CN204093403U (en) | 2014-09-11 | 2014-09-11 | A kind of distributing instrument pressure equaliser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554145.1U CN204093403U (en) | 2014-09-11 | 2014-09-11 | A kind of distributing instrument pressure equaliser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204093403U true CN204093403U (en) | 2015-01-14 |
Family
ID=52261874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420554145.1U Expired - Fee Related CN204093403U (en) | 2014-09-11 | 2014-09-11 | A kind of distributing instrument pressure equaliser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204093403U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695121A (en) * | 2017-01-09 | 2017-05-24 | 上海交通大学 | Cladding layer removing device and method through laser melting assisted by compressed air |
| CN108355578A (en) * | 2018-03-19 | 2018-08-03 | 深圳沃飞科技有限公司 | A kind of gas mixing ratio method and system for laser cutting |
| CN109603598A (en) * | 2019-01-15 | 2019-04-12 | 南京市江宁医院 | A kind of gas mixer that fluctuation of concentration is small |
-
2014
- 2014-09-11 CN CN201420554145.1U patent/CN204093403U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695121A (en) * | 2017-01-09 | 2017-05-24 | 上海交通大学 | Cladding layer removing device and method through laser melting assisted by compressed air |
| CN108355578A (en) * | 2018-03-19 | 2018-08-03 | 深圳沃飞科技有限公司 | A kind of gas mixing ratio method and system for laser cutting |
| CN109603598A (en) * | 2019-01-15 | 2019-04-12 | 南京市江宁医院 | A kind of gas mixer that fluctuation of concentration is small |
| CN109603598B (en) * | 2019-01-15 | 2021-12-28 | 南京市江宁医院 | Gas mixing device with small concentration fluctuation |
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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 |
Granted publication date: 20150114 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |