CN109443776A - A kind of adjustment of gas concentration method - Google Patents
A kind of adjustment of gas concentration method Download PDFInfo
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- CN109443776A CN109443776A CN201811280937.3A CN201811280937A CN109443776A CN 109443776 A CN109443776 A CN 109443776A CN 201811280937 A CN201811280937 A CN 201811280937A CN 109443776 A CN109443776 A CN 109443776A
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- gas
- concentration
- adjustment
- regulating valve
- existing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
Abstract
The present invention relates to field of measuring technique, disclose a kind of adjustment of gas concentration method.The adjustment of gas concentration method is used to adjust the concentration that gas is tested in the mixed gas in accommodating space, comprising: detection mixed gas obtains the existing concentration of tested gas；Existing concentration is compared with the aimed concn of tested gas, the aperture of valve is controlled to adjust according to comparison result, so that existing concentration is adjusted, until existing concentration is equal to aimed concn.The adjustment of gas concentration method, aperture by controlling to adjust valve supplements corresponding gas into accommodating space, and then adjust the tested gas concentration in accommodating space, the mixed gas that preparation there is various concentration to be tested gas, it ensure that regulations speed and precision, and required operator is less, it is convenient and efficient.
Description
Technical field
The present invention relates to field of measuring technique, disclose a kind of adjustment of gas concentration method.
Background technique
In engine test, the detonating combustion of fuel gas of the general detection in engine operation in cylinder
Tendency, then pass through the mechanical performance of detonating combustion trend analysis engine.In general, the fuel with various concentration methane need to be detected
The detonating combustion of gas is inclined to, to be compared and divide for the detonating combustion tendency of the fuel gas of various concentration methane
Analysis.
In the prior art, generally by the way of artificial mixed gas and standard adjustment gas, preparation has different dense
Spend the fuel gas of methane, then by compressor, respectively by the fuel gas with various concentration methane be delivered to engine into
Air pipe, to carry out the knocking test of next stage.
Such mode is complicated for operation, and the regulations speed of methane concentration is slower, and detection efficiency is caused to reduce.
Summary of the invention
Based on the above, the purpose of the present invention is to provide a kind of adjustment of gas concentration method, the adjustment of gas concentration
Method adjustment of gas concentration rate with higher.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of adjustment of gas concentration method, for adjusting the concentration for being tested gas in the mixed gas in accommodating space, packet
It includes:
The mixed gas is detected, the existing concentration of the tested gas is obtained；
The existing concentration is compared with the aimed concn of the tested gas, valve is controlled to adjust according to comparison result
Aperture, to adjust the existing concentration, until the existing concentration is equal to the aimed concn.
Preferably, the regulating valve includes the first regulating valve and the second regulating valve, and the adjustment of gas concentration method is also wrapped
It includes:
Supplement regulating gas into the accommodating space by first regulating valve, and by second regulating valve to
The supplement tested gas in the accommodating space.
Preferably, the adjustment of gas concentration method further include:
If the existing concentration is higher than the aimed concn, first regulating valve is opened, closes second regulating valve,
Until closing first regulating valve when existing concentration is equal to the aimed concn.
Preferably, the adjustment of gas concentration method further include:
If the existing concentration, outside the first setting range, first regulating valve keeps maximum opening；
If the existing concentration, in first setting range, first regulating valve remains less than the maximum opening
The first opening value.
Preferably, the adjustment of gas concentration method further include:
If the existing concentration is lower than the aimed concn, first regulating valve is closed, opens second regulating valve,
Until closing second regulating valve when existing concentration is equal to the aimed concn.
Preferably, the adjustment of gas concentration method further include:
If the existing concentration, outside the second setting range, second regulating valve keeps maximum opening；
If the existing concentration, in second setting range, second regulating valve remains less than the maximum opening
The second opening value.
Preferably, the first air accumulator is set outside Yu Suoshu accommodating space, first air accumulator is connected by the first pipeline
The accommodating space is passed through, setting can open or close first pipeline on the first pipeline of Yu Suoshu described first is adjusted
Valve.
Preferably, the second air accumulator is set outside Yu Suoshu accommodating space, second air accumulator is connected by the second pipeline
The accommodating space is passed through, setting can open or close second pipeline on the second pipeline of Yu Suoshu described second is adjusted
Valve.
Preferably, the regulating gas is stored in first air accumulator, the tested gas is stored in described
Two air accumulators.
Preferably, the adjustment of gas concentration method further include:
By signal processing module, the aimed concn is inputted, the existing concentration and the aimed concn are compared
Compared with acquisition comparison result；
The aperture of the regulating valve is controlled according to comparison result by execution module.
The invention has the benefit that
Adjustment of gas concentration method according to the present invention, the aperture by controlling to adjust valve supplement phase into accommodating space
Gas is answered, and then adjusts the tested gas concentration in accommodating space, so that preparation has the mixing of the tested gas of various concentration
Gas improves regulations speed and precision, and required operator is less, convenient and efficient.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also implement according to the present invention
The content of example and these attached drawings obtain other attached drawings.
Fig. 1 is the flow chart one of adjustment of gas concentration method；
Fig. 2 is the equipment arrangement schematic diagram of adjustment of gas concentration method；
Fig. 3 is the flowchart 2 of adjustment of gas concentration method.
In figure:
1- accommodating space；10- compressor；11- engine air inlet tube；2- regulating valve；The first regulating valve of 21-；22- second is adjusted
Save valve；The first air accumulator of 31-；The second air accumulator of 32-；The first pipeline of 41-；The second pipeline of 42-.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
The present embodiment provides a kind of adjustment of gas concentration methods, are tested for adjusting in the mixed gas in accommodating space 1
The concentration of gas.Referring to Fig. 1, which includes the existing concentration that tested gas is obtained by detection module,
And valve 2 is controlled to adjust according to the comparison result of existing concentration and the aimed concn of the tested gas of setting by control module
Aperture, so that existing concentration is adjusted, until existing concentration is equal to aimed concn.
Referring to fig. 2, regulating valve 2 include the first regulating valve 21 and the second regulating valve 22, can by the first regulating valve 21 to
Regulating gas is supplemented in accommodating space 1, can supplement tested gas into accommodating space 1 by the second regulating valve 22.By certainly
The dynamic aperture for adjusting the first regulating valve 21 and the second regulating valve 22 supplements tested gas or regulating gas into accommodating space 1,
Existing concentration is set to be equal to aimed concn, so that preparation has the mixed gas of the tested gas of aimed concn.
Referring also to Fig. 2, in the first air accumulator 31 is arranged outside accommodating space 1, the first air accumulator 31 is passed through into the first pipeline 41
It is connected to accommodating space 1, the first regulating valve 21 of the first pipeline 41 can be opened or closed in setting on the first pipeline 41.
Referring also to Fig. 2, in the present embodiment, in the second air accumulator 32 is arranged outside accommodating space 1, the second air accumulator 32 is led to
It crosses the second pipeline 42 and is connected to accommodating space 1, the second of the second pipeline 42 can be opened or closed in setting on the second pipeline 42
Regulating valve 22.
Specifically, regulating gas is stored in the first air accumulator 31, tested gas is stored in the second air accumulator 32.
In the present embodiment, mixed gas is natural gas, including methane, ethane, propane, normal butane, carbon dioxide and nitrogen
Gas.Tested gas is methane, and regulating gas is propane, and by supplementing methane or propane into accommodating space 1, preparation has mesh
Mark the natural gas of concentration methane.
Referring also to Fig. 2, accommodating space 1 is the space in engine air inlet tube 11, by compressor 10 that mixed gas is defeated
Mixed gas is transported in cylinder to the accommodating space 1 of engine air inlet tube 11, then through engine air inlet tube 11, into
Row detonating combustion test.
In the present embodiment, in detection module is arranged in accommodating space 1, by detection module, mixed gas is detected, is obtained
The existing concentration of tested gas, and existing concentration is transmitted to control module.
Specifically, detection module includes six kinds of gas component sensors, is monitored simultaneously by six kinds of gas component sensors
The concentration of methane, ethane, propane, normal butane, carbon dioxide and nitrogen.
In the present embodiment, by the signal processing module in aimed concn input control module, pass through signal processing module
It receives existing concentration and compares aimed concn and existing concentration, then comparison result is transported into the execution module in control module, lead to
Execution module is crossed, the aperture of the first regulating valve 21 and the second regulating valve 22 is controlled according to comparison result.
It specifically, can be by inputting different aimed concns to signal processing module, so that preparation has various concentration quilt
Survey the mixed gas of gas.
Referring to Fig. 3, if existing concentration is higher than aimed concn, existing concentration is received by signal processing module and compares target
Concentration and existing concentration, then comparison result is transported to execution module open the first regulating valve 21 by execution module, close the
Two regulating valves 22, until closing the first regulating valve 21 when existing concentration is equal to aimed concn.
Specifically, existing concentration be higher than aimed concn when, if existing concentration outside the first setting range, the first regulating valve
21 keep maximum opening, to increase the flow of the feed adjustment gas into accommodating space 1, to quickly reduce existing concentration.The
One setting range can be set according to specific operating condition, and the maximum opening of the first regulating valve 21 can be 100%.
Specifically, existing concentration be higher than aimed concn when, if existing concentration in the first setting range, the first regulating valve
21 remain less than the first opening value of maximum opening, and the first opening value can be set according to specific operating condition.
Referring also to Fig. 3, if existing concentration is lower than aimed concn, existing concentration is received by signal processing module and compares mesh
Concentration and existing concentration are marked, then comparison result is transported into execution module, by execution module, the first regulating valve 21 is closed, opens
Second regulating valve 22, until closing the second regulating valve 22 when existing concentration is equal to aimed concn.
Specifically, existing concentration be lower than aimed concn when, if existing concentration outside the second setting range, the second regulating valve
22 keep maximum opening, to increase the flow for conveying tested gas into accommodating space 1, to quickly improve existing concentration.The
Two setting ranges can be set according to specific operating condition, and the maximum opening of the second regulating valve 22 can be 100%.
Specifically, existing concentration be lower than aimed concn when, if existing concentration in the second setting range, the second regulating valve
22 remain less than the second opening value of maximum opening, and the second opening value can be set according to specific operating condition.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of adjustment of gas concentration method, for adjusting the concentration for being tested gas in the mixed gas in accommodating space (1),
It is characterized in that, comprising:
The mixed gas is detected, the existing concentration of the tested gas is obtained；
The existing concentration is compared with the aimed concn of the tested gas, valve (2) are controlled to adjust according to comparison result
Aperture, to adjust the existing concentration, until the existing concentration is equal to the aimed concn.
2. adjustment of gas concentration method according to claim 1, which is characterized in that the regulating valve (2) includes the first tune
Save valve (21) and the second regulating valve (22), the adjustment of gas concentration method further include:
It is adjusted by supplementing regulating gas in the first regulating valve (21) Xiang Suoshu accommodating space (1), and by described second
The supplement tested gas in valve (22) Xiang Suoshu accommodating space (1).
3. adjustment of gas concentration method according to claim 2, which is characterized in that the adjustment of gas concentration method is also wrapped
It includes:
If the existing concentration is higher than the aimed concn, first regulating valve (21) is opened, closes second regulating valve
(22), until when the existing concentration is equal to the aimed concn, first regulating valve (21) is closed.
4. adjustment of gas concentration method according to claim 3, which is characterized in that the adjustment of gas concentration method is also wrapped
It includes:
If the existing concentration, outside the first setting range, first regulating valve (21) keeps maximum opening；
If the existing concentration, in first setting range, first regulating valve (21) remains less than the maximum opening
The first opening value.
5. adjustment of gas concentration method according to claim 2, which is characterized in that the adjustment of gas concentration method is also wrapped
It includes:
If the existing concentration is lower than the aimed concn, first regulating valve (21) is closed, opens second regulating valve
(22), until when the existing concentration is equal to the aimed concn, second regulating valve (22) is closed.
6. adjustment of gas concentration method according to claim 5, which is characterized in that the adjustment of gas concentration method is also wrapped
It includes:
If the existing concentration, outside the second setting range, second regulating valve (22) keeps maximum opening；
If the existing concentration, in second setting range, second regulating valve (22) remains less than the maximum opening
The second opening value.
7. adjustment of gas concentration method according to claim 2, which is characterized in that Yu Suoshu accommodating space (1) is arranged outside
First air accumulator (31) is connected to the accommodating space (1) by the first pipeline (41), in institute by the first air accumulator (31)
First regulating valve (21) of first pipeline (41) can be opened or closed by stating setting on the first pipeline (41).
8. adjustment of gas concentration method according to claim 7, which is characterized in that Yu Suoshu accommodating space (1) is arranged outside
Second air accumulator (32) is connected to the accommodating space (1) by the second pipeline (42), in institute by the second air accumulator (32)
Second regulating valve (22) of second pipeline (42) can be opened or closed by stating setting on the second pipeline (42).
9. adjustment of gas concentration method according to claim 8, which is characterized in that be stored in the regulating gas described
The tested gas is stored in second air accumulator (32) by the first air accumulator (31).
10. -9 described in any item adjustment of gas concentration methods according to claim 1, which is characterized in that the gas concentration tune
Section method further include:
By signal processing module, the aimed concn is inputted, the existing concentration is compared with the aimed concn, is obtained
Obtain comparison result；
The aperture of the regulating valve (2) is controlled according to comparison result by execution module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280937.3A CN109443776A (en) | 2018-10-30 | 2018-10-30 | A kind of adjustment of gas concentration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280937.3A CN109443776A (en) | 2018-10-30 | 2018-10-30 | A kind of adjustment of gas concentration method |
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| Publication Number | Publication Date |
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| CN109443776A true CN109443776A (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811280937.3A Pending CN109443776A (en) | 2018-10-30 | 2018-10-30 | A kind of adjustment of gas concentration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468054A (en) * | 2020-04-16 | 2020-07-31 | 南京西浦储能技术研究院有限公司 | Unsaturated organic matter circulating hydrogenation energy storage device and method |
| CN113161265A (en) * | 2021-04-16 | 2021-07-23 | 北京北方华创微电子装备有限公司 | Gas concentration control method, gas concentration control device, and semiconductor device |
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| CN102266630A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Breathing machine gas proportion control method and device |
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| CN104033174A (en) * | 2014-06-10 | 2014-09-10 | 中国矿业大学 | Safe and automatic methane concentration regulation system and method |
| CN207397459U (en) * | 2017-09-18 | 2018-05-22 | 深圳市天平消防安全技术工程有限公司 | A kind of concentration of toxic gases alarm with voice prompting function |
| CN207856860U (en) * | 2017-10-17 | 2018-09-14 | 重庆凯益特种气体有限公司 | A kind of mixed gas intelligence air distribution system suitable for tun |
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2018
- 2018-10-30 CN CN201811280937.3A patent/CN109443776A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266630A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Breathing machine gas proportion control method and device |
| CN102841613A (en) * | 2012-08-29 | 2012-12-26 | 兰州理工大学 | Gas concentration control system in gas distribution process |
| CN104033174A (en) * | 2014-06-10 | 2014-09-10 | 中国矿业大学 | Safe and automatic methane concentration regulation system and method |
| CN207397459U (en) * | 2017-09-18 | 2018-05-22 | 深圳市天平消防安全技术工程有限公司 | A kind of concentration of toxic gases alarm with voice prompting function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111468054A (en) * | 2020-04-16 | 2020-07-31 | 南京西浦储能技术研究院有限公司 | Unsaturated organic matter circulating hydrogenation energy storage device and method |
| CN113161265A (en) * | 2021-04-16 | 2021-07-23 | 北京北方华创微电子装备有限公司 | Gas concentration control method, gas concentration control device, and semiconductor device |
| CN113161265B (en) * | 2021-04-16 | 2024-04-16 | 北京北方华创微电子装备有限公司 | Gas concentration control method, gas concentration control device and semiconductor device |
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Application publication date: 20190308 |