CN202356037U - Gas diluting device - Google Patents
Gas diluting device Download PDFInfo
- Publication number
- CN202356037U CN202356037U CN201120514474XU CN201120514474U CN202356037U CN 202356037 U CN202356037 U CN 202356037U CN 201120514474X U CN201120514474X U CN 201120514474XU CN 201120514474 U CN201120514474 U CN 201120514474U CN 202356037 U CN202356037 U CN 202356037U
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- mass flow
- flow controller
- converter
- gas
- chip microcomputer
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Abstract
Disclosed is a gas diluting device. A first mass flow controller and a second mass flow controller are respectively communicated with a mixing tank via a first three-way valve and a second three-way valve, another outlet of the first three-way valve and another outlet of the second three-way valve are respectively connected with a first outlet tube and a second output tube, and an inlet of the first mass flow controller and an inlet of the second mass flow controller are respectively used for inputting to-be-diluted gas with the known concentration and diluted gas with the known concentration. An automatic control system includes that a single chip microcomputer is connected with a touch screen via an RS232 interface circuit, a signal output end of the first mass flow controller and a signal output end of the second mass flow controller are connected with an A/D (analog/digital) converter, the A/D converter is connected with the single chip microcomputer, the single chip microcomputer is connected with a D/A (digital/analog) converter, and the D/A converter is then respectively connected with the first mass flow controller and the second mass flow controller. The gas diluting device can dilute single-component gas and prepare multi-component standard gas substances, and has the advantages of high preparation precision and efficiency and convenience in operation.
Description
Technical field
The utility model relates to the gas dilution device, particularly relates to the system that one-component or multicomponent gas are diluted by desired concn.
Background technology
Existing gas dilution device adopts the two-way mass flow controller to realize more; Principle is the gas of known a kind of concentration; With another kind of gas (for example nitrogen or air) it is carried out a certain proportion of dilution by needed concentration, just obtain a kind of gaseous mixture.
Existing air mix facilities system is made up of valve, stainless steel tube, blending tank, pressure sensor etc., and its function ratio is more single, and precision preparation is poor, efficient is lower and inconvenient operation.
The utility model content
The purpose of the utility model is to provide a kind of precision preparation high, easy to operate gas dilution device to the deficiency of prior art.
This novel purpose is achieved in that a kind of gas dilution device; Comprise blending tank; First mass flow controller is arranged in first pipeline, and the first pipeline import is as the diluent gas of treating of input concentration known, and the outlet of first pipeline connects the left import of first triple valve; The following outlet of first triple valve is communicated with said blending tank, and the right side outlet of first triple valve connects first efferent duct; Second mass flow controller is arranged in second pipeline; The second pipeline import is as the input diluent gas; The outlet of second pipeline connects the left import of second triple valve, and the following outlet of second triple valve is communicated with blending tank, and the right side outlet of second triple valve connects second efferent duct; Also have automatic control system: single-chip microcomputer is connected with touch-screen through the RS232 interface circuit; The signal output part of above-mentioned first mass flow controller and second mass flow controller is connected with A/D converter; A/D converter is connected with single-chip microcomputer; Single-chip microcomputer is connected with D/A converter, being connected with second mass flow controller with first mass flow controller respectively again of D/A converter.
Above-mentioned single-chip microcomputer model is C8051F410.
The model of above-mentioned first mass flow controller and second mass flow controller be Beijing seven-star company D07-19B or Japanese KOFLOC 3360.
The model of above-mentioned A/D converter is ADS1232.
Above-mentioned diluent gas is nitrogen or air.
The shortcoming of this novel pin to existing in the prior art proposes touch-screen is introduced the gas dilution device, realizes intellectualized operation, introduces tee ball valve simultaneously, makes the whole system flexible operation, both can mix use, also can not have one the tunnel to use separately.
Compared with prior art, the beneficial effect of the utility model is:
1, this compounding system applies to touch-screen on traditional gas standard material preparation facilities, and all operations process is all accomplished through touch-screen.
2, single-chip microcomputer and mass flow controller form closed-loop control.
3, system both can mix use and also can switch to each road and use easy switching separately.
4, this system can realize the dilution of single-component gas and the preparation of multi-component gas standard material.
Description of drawings
Fig. 1 is the hardware principle block diagram of this novel automatic control system.
Fig. 2 is this novel gas circuit connection layout.
The specific embodiment
Fig. 1, Fig. 2 illustrate; This novel blending tank that comprises; First mass flow controller is arranged in first pipeline, and the first pipeline import is as the diluent gas of treating of input concentration known, and the outlet of first pipeline connects the left import of first triple valve; The following outlet of first triple valve is communicated with said blending tank, and the right side outlet of first triple valve connects first efferent duct; Second mass flow controller is arranged in second pipeline; The second pipeline import is as the input diluent gas; The outlet of second pipeline connects the left import of second triple valve, and the following outlet of second triple valve is communicated with blending tank, and the right side outlet of second triple valve connects second efferent duct; Also have automatic control system: single-chip microcomputer is connected with touch-screen through the RS232 interface circuit; The signal output part of above-mentioned first mass flow controller and second mass flow controller is connected with A/D converter; A/D converter is connected with single-chip microcomputer; Single-chip microcomputer is connected with D/A converter, being connected with second mass flow controller with first mass flow controller respectively again of D/A converter.Triple valve can adopt electric T-shaped valve.Triple valve has into three mouths of scene 2.During the spool diverse location, outlet is different, and when the bottom, a left side is advanced, the right side goes out to communicate like spool, and spool is when top, and right outlet is plugged, and advances and export down to communicate in a left side.
Wherein the model of mass flow controller is D07-19B (Beijing seven-star) or 3660 (Japanese KOFLOC).
Wherein single-chip microcomputer is C8051F410; The A/D conversion chip is ADS1232; Single-chip microcomputer is through the output signal of A/D acquisition quality flow controller; Receive the data (setting flow value) that touch-screen sends through the RS232 interface simultaneously, these two signals compare, and control mass flow controller through the D/A converted output signal simultaneously.
Claims (5)
1. a gas dilution device comprises blending tank; It is characterized in that; First mass flow controller is arranged in first pipeline, and the first pipeline import is as the diluent gas of treating of input concentration known, and the outlet of first pipeline connects the left import of first triple valve; The following outlet of first triple valve is communicated with said blending tank, and the right side outlet of first triple valve connects first efferent duct; Second mass flow controller is arranged in second pipeline; The second pipeline import is as the input diluent gas; The outlet of second pipeline connects the left import of second triple valve, and the following outlet of second triple valve is communicated with blending tank, and the right side outlet of second triple valve connects second efferent duct; Also have automatic control system: single-chip microcomputer is connected with touch-screen through the RS232 interface circuit; The signal output part of above-mentioned first mass flow controller and second mass flow controller is connected with A/D converter; A/D converter is connected with single-chip microcomputer; Single-chip microcomputer is connected with D/A converter, being connected with second mass flow controller with first mass flow controller respectively again of D/A converter.
2. gas dilution device according to claim 1 is characterized in that, said single-chip microcomputer model is C8051F410.
3. gas dilution device according to claim 1 is characterized in that, the model of said first mass flow controller and second mass flow controller be Beijing seven-star company D07-19B or Japanese KOFLOC 3360.
4. gas dilution device according to claim 1 is characterized in that, the model of said A/D converter is ADS1232.
5. according to claim 1 or 2 or 3 or 4 described gas dilution devices, it is characterized in that said diluent gas is nitrogen or air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514474XU CN202356037U (en) | 2011-12-12 | 2011-12-12 | Gas diluting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514474XU CN202356037U (en) | 2011-12-12 | 2011-12-12 | Gas diluting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202356037U true CN202356037U (en) | 2012-08-01 |
Family
ID=46567256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120514474XU Expired - Lifetime CN202356037U (en) | 2011-12-12 | 2011-12-12 | Gas diluting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202356037U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143280A (en) * | 2013-01-31 | 2013-06-12 | 深圳供电局有限公司 | Special gas generator |
| CN106908306A (en) * | 2017-01-19 | 2017-06-30 | 常州磐诺仪器有限公司 | A kind of intelligent on-line dilution prover |
| CN112816601A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas dilution device and method based on selection technology |
-
2011
- 2011-12-12 CN CN201120514474XU patent/CN202356037U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143280A (en) * | 2013-01-31 | 2013-06-12 | 深圳供电局有限公司 | Special gas generator |
| CN103143280B (en) * | 2013-01-31 | 2015-11-04 | 深圳供电局有限公司 | A kind of special gas generating means |
| CN106908306A (en) * | 2017-01-19 | 2017-06-30 | 常州磐诺仪器有限公司 | A kind of intelligent on-line dilution prover |
| CN112816601A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas dilution device and method based on selection technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fang Zheng Inventor before: Wang Xianjian |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG XIANJIAN TO: FANG ZHENG |
|
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN ZHONGCE STANDARD MATERIALS TECHNOLOGY CO., Free format text: FORMER OWNER: CHINESE INST. OF TEST TECHNOLOGY Effective date: 20130822 Free format text: FORMER OWNER: CHEMISTRY INST., CHINA MEASURING + TESTING TECHNIQUE RESEARCH INST SICHUAN ZHONGCE STANDARD MATERIALS TECHNOLOGY CO., LTD. Effective date: 20130822 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130822 Address after: 610056 Sichuan city of Chengdu province Chenghua District Yushuang Road No. 10 building room 210 Patentee after: Sichuan Zhongce Marker Technology Co., Ltd. Address before: 610056 Sichuan city of Chengdu province Chenghua District Yushuang Road No. 10 Patentee before: Chinese Inst. of Test Technology Patentee before: The Chemical Institute of National Institute of Measurement and Testing Technology Patentee before: Sichuan Zhongce Marker Technology Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150916 Address after: 610000 Sichuan city of Chengdu province Yushuang Road No. 10 Patentee after: Chinese Inst. of Test Technology Patentee after: The Chemical Institute of National Institute of Measurement and Testing Technology Address before: 610056 Sichuan city of Chengdu province Chenghua District Yushuang Road No. 10 building room 210 Patentee before: Sichuan Zhongce Marker Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |