CN205832986U - Multicomponent gas mixing system - Google Patents
Multicomponent gas mixing system Download PDFInfo
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- CN205832986U CN205832986U CN201620790647.3U CN201620790647U CN205832986U CN 205832986 U CN205832986 U CN 205832986U CN 201620790647 U CN201620790647 U CN 201620790647U CN 205832986 U CN205832986 U CN 205832986U
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- gas mixing
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Abstract
The utility model discloses a kind of multicomponent gas mixing system, it comprises flow control system and hybrid system, this flow control system comprises the pure gas branch road of at least two parallel joins, and be connected with all pure gas branch road ports of export, and all pure gases are delivered to the main gas circuit of input of hybrid system, on each pure gas branch road, it is sequentially provided with air inlet connector along charge air flow direction, filter, flow control meter, first unidirectional stop valve and the second stop valve, this flow control meter is connected with computer system or programmable logic controller (PLC), hybrid system comprises and inputs the static blender that main gas circuit is connected, the effusion meter being connected by pipeline with static blender and gaseous mixture delivery outlet.This utility model improves the mixed-precision of multicomponent gas; can control the difference of each component actual concentrations and concentration set point in mixed gas concentration set point ± 2.0% in the range of, can be used for the mixed preparing of protection gas when mixed combustible gas body or welding during flame cutting.
Description
Technical field
This utility model relates to gas mixing system, particularly, the gas mixing system of high mixed-precision.
Background technology
In commercial production and modern medical service, it is often necessary to use after two kinds and two or more gas are mixed, such as
Industry mixed gas arc welding connects required binary gas, three-element mixed gas and quaternary gaseous mixture, is mainly basic with argon
Constituent element, is separately added into noble gas, one or more of reducibility gas and oxidizing gas.The kind of gaseous mixture and composition are not
With, application effect also varies.It is source of the gas when using pure gas, when being mixed for welding or cutting by pipeline, needs
Two or more gas is carried out accurate proportioning, obtains concentration and determine and stable mixed gas.Gas mixer is many at present
Planting various, Authorization Notice No. is Chinese invention patent " a kind of gas ratio mixing valve, the multicomponent gas ratio of CN102128285B
Proportioning combination valve and gas mixing system " disclose a kind of gas mixing system, combined by the simple mechanism of valve body and spool,
It is not required to gas analyser, only controls with a knob, can be prepared by binary and Diversity gas.Authorization Notice No. is
The Chinese utility model patent of CN202921183U " a kind of oxygen and the automatic air mixing equipment of argon " discloses a kind of equipment, can be
Automatic mixing match oxygen-enriched atmosphere under different Cutting and machining conditions.But above-mentioned technology all exists gaseous mixture actual concentrations measures not
Standard, mixes uneven problem, especially when supplying continuously, mixes uneven being particularly acute, and cutting or welding effect are had shadow
Ring the biggest.
Summary of the invention
This utility model is for the uneven problem of above-mentioned mixed gas concentration, it is provided that a kind of multicomponent gas mixture system
System, can determine with compound concentration and stable Diversity gas, improves the mixed-precision of multicomponent gas.In order to realize above-mentioned mesh
, this utility model employing following technical proposals:
A kind of multicomponent gas mixing system, contains flow control system and hybrid system, wherein flow control system bag
Contain the pure gas branch road of at least two parallel joins, and be connected with all pure gas branch road ports of export, and by all lists
One gas is delivered to the main gas circuit of input of hybrid system, on each pure gas branch road, is sequentially provided with along charge air flow direction
Air inlet connector, filter, flow control meter, the first unidirectional stop valve and the second stop valve that pure gas source of the gas is connected, institute
Stating flow control meter to be connected with computer system or programmable logic controller (PLC), hybrid system is sequentially provided with along charge air flow direction
The static blender being connected with the main gas circuit of input, the 3rd stop valve being connected by pipeline with static blender and gaseous mixture output
Mouthful.
Preferably, described flow control meter is connected with computer system or programmable logic controller (PLC) by data wire, can
With by program (control program Flowview provided for its flow control meter such as flow control meter producer Bronkhorst) essence
Really set, control and regulate gas mass flow or volume flow.
Preferably, described second stop valve, the 3rd stop valve are diaphragm valve.
Preferably, described multicomponent gas mixing system also comprises vacuum generating system.
Preferably, the article pipeline between described vacuum generating system and static blender and the 3rd stop valve drawn
Branch road is connected, and comprises the second unidirectional stop valve, the 4th stop valve and the vacuum generator set gradually.
Preferably, the range of flow of described flow control meter is: 0-50 L/min
Preferably, the flow control accuracy of described flow control meter be setting value ± 1.0% within.
Preferably, multicomponent gas mixing system is arranged on moveable operating board.
Preferably, described air inlet connector, filter, flow control meter, the first unidirectional stop valve, the second stop valve and
One or several part in static blender is fixed on a block operations panel of operating board.
The beneficial effects of the utility model are: can accurately set source of the gas gas in multicomponent gas mixing system gas circuit by program
The flow of body, the flow (mass flow or volume flow) of on-line control gas to be mixed, to reach Exact concentrations, can control reality
Error between border flow and setting flow is in ± 1.0% range of set value, and then is accurately controlled the mixing ratio of kinds of gas sources
Example, control the difference of each component actual concentrations and concentration set point in mixed gas concentration set point ± 2.0% in the range of；
Source gas inputs static blender by pipeline after being converged, after static blender mixing, and the concentration of Diversity gas
More uniform, the composition of the mixed gas of output more accurately and is stablized；Switch during source gas convenient, the master of overall gas circuit
Parts such as flow control meter, static blender, related valve and parts are wanted to may be mounted on a removable panel, it is simple to move
Move and change parts.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-air inlet connector；2-the first stop valve；3-filter；4-flow control meter；5-the first unidirectional cutoff
Valve；6-the second stop valve；7-inputs main gas circuit；8-static state blender；9-Pressure gauge；10-the 3rd stop valve；11-mixes
Close gas delivery outlet；12-the second unidirectional stop valve；13-the 4th stop valve；14-vacuum generator；15-the 5th stop valve；
16-flow control system；17-hybrid system；18-vacuum generating system.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
As it is shown in figure 1, multicomponent gas mixing system, contain flow control system 16 and hybrid system 17, wherein flow
Control system 16 contains the pure gas branch road of at least two parallel joins, and with all pure gas branch road port of export phases
Connect, and all pure gases are delivered to the main gas circuit of input 7 of hybrid system, on each pure gas branch road, along air inlet gas
Flow path direction be sequentially provided with pure gas source of the gas be connected air inlet connector the 1, first stop valve 2, filter 3, flow control meter 4,
First unidirectional stop valve 5 and the second stop valve 6, described flow control meter is connected with computer system, and hybrid system 17 is along air inlet
Airflow direction comprises and inputs the static blender 8 that main gas circuit 7 is connected, the 3rd cut-off being connected by pipeline with static blender
Valve 10 and gaseous mixture delivery outlet 11.Flow control meter is connected with computer system by data wire, can pass through computer program
Flowview(is provided for its flow control meter by flow control meter producer Bronkhorst) accurately set, control and regulate gas
Flow.It is provided with vacuum generating system 18 in gas circuit, the pipeline between itself and static blender 8 and the 3rd stop valve 10 is drawn
Article one, branch road is connected, and it comprises the second unidirectional stop valve the 12, the 4th stop valve 13 and the vacuum generator 14 set gradually, and the 4th
Stop valve 13 is connected with the adsorbent chamber entrance of vacuum generator 14 by pipeline.Vacuum generator is optional but is not limited to venturi
Type vacuum generator, available compressed air or nitrogen are as malleation source of the gas, and on positive pressure gas source capsule road, place can set the 5th stop valve
15, malleation source of the gas enters the air source inlet of vacuum generator after flowing through the 5th stop valve 15.The range of flow control meter is: 0 ~
50L/min, flow-control scope is the 2-100% of full scale, precision be setting value ± 1.0%, stability≤± 0.2% full amount
Journey.Above-mentioned total interface, parts, valve and pipeline are all fixed on a moveable operating board panel.
The operation principle of this system is described as follows: uses the front gas circuit to each source of the gas evacuation respectively, closes gaseous mixture
Export the second stop valve 6 on the 3rd stop valve 10 and other pure gas branch roads, replace four times with this source of the gas after evacuation,
After setting kind and the flow of at least two pure gas in computer system, open switch and the valve of corresponding gas circuit,
In computer system, operation starts air inlet, and gas, through the first stop valve, filter, enters flow control meter, logical after quantitatively flowing out
Cross the first unidirectional stop valve, diaphragm valve (the i.e. second stop valve), enter input main line together with other gases to be mixed, then
Flowing into the air inlet of static blender, static blender can allow multicomponent gas mix well, so that it is guaranteed that from static mixture
The mixed-precision of the multicomponent gas of device gas outlet output, the gas of final mix homogeneously is exported by mixed air delivery outlet.
Flow control meter shows gas volume flow at the working temperature, said system on computer computer program
Can be when 2-5 kind gas mixture ratio example be 1-100%, total flow is to realize multiple gases under the conditions of 5L/min-50L/min
Uniformly mixing, in real-time mixed gas, the difference of each component actual concentrations and concentration set point (vol%) is in concentration set point
In the range of ± 2.0%.
The actual measurement data of one of them case study on implementation is as follows:
| Gas | Set flow value (mL/min) | Concentration set point (vol %) | Error is the concentration range (vol%) of ± 2% setting value | Actual measurement concentration (three data) (vol %) |
| He | 1200 | 90.29 | 88.48~92.1 | 90.29,88.49,92.1 |
| CO2 | 540 | 4.06 | 3.98~4.14 | 4.06,3.98,4.14 |
| N2 | 510 | 3.84 | 3.76~3.92 | 3.84,3.76,3.91 |
| O2 | 240 | 1.81 | 1.77~1.85 | 1.81,1.77,1.84 |
The above, be only preferred embodiment of the present utility model, not imposed any restrictions the present invention, every basis
Any simple modification, change and the equivalent structure change that above example is made by this utility model technical spirit, the most still belongs to
In the protection domain of technical solutions of the utility model.
Claims (9)
1. a multicomponent gas mixing system, it is characterised in that this multicomponent gas mixing system comprises flow control system (16)
With hybrid system (17), wherein flow control system (16) comprises the pure gas branch road of at least two parallel joins, and, with institute
There is the pure gas branch road port of export to be connected, and all pure gases are delivered to the main gas circuit of the input (7) of hybrid system, each
On pure gas branch road, be sequentially provided with along charge air flow direction air inlet connector (1), filter (3), flow control meter (4),
One unidirectional stop valve (5) and the second stop valve (6), described flow control meter connects with computer system or programmable logic controller (PLC)
Connecing, hybrid system (17) is sequentially provided with along charge air flow direction and inputs static blender (8) that main gas circuit (7) is connected with quiet
State blender (8) passes through the 3rd stop valve (10) and the gaseous mixture delivery outlet (11) that pipeline is connected.
Multicomponent gas mixing system the most according to claim 1, it is characterised in that flow control meter (4) passes through data wire
It is connected with computer system or programmable logic controller (PLC), by program, corresponding mass flow or volume flow is carried out accurately
Set, control and regulate.
Multicomponent gas mixing system the most according to claim 1, it is characterised in that described second stop valve (6), the 3rd section
Only valve (10) is diaphragm valve.
Multicomponent gas mixing system the most according to claim 1, it is characterised in that this multicomponent gas mixing system also comprises
Vacuum generating system (18).
Multicomponent gas mixing system the most according to claim 4, it is characterised in that described vacuum generating system (18) is with quiet
The one article of branch road drawn on pipeline between state blender (8) and the 3rd stop valve (10) is connected, and comprises second set gradually
Unidirectional stop valve (12), the 4th stop valve (13) and vacuum generator (14).
Multicomponent gas mixing system the most according to claim 1, it is characterised in that the stream of described flow control meter (4)
Weight range exists: 0-50 L/min.
Multicomponent gas mixing system the most according to claim 1, it is characterised in that the flow of described flow control meter (4)
Control accuracy be setting value ± 1.0% within.
Multicomponent gas mixing system the most according to claim 1, it is characterised in that this multicomponent gas mixing system is arranged on
Movably on operating board.
Multicomponent gas mixing system the most according to claim 8, it is characterised in that described air inlet connector (1), filter
(3), or several in flow control meter (4), the first unidirectional stop valve (5), the second stop valve (6) and static blender (8)
Individual part is fixed on a block operations panel of operating board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790647.3U CN205832986U (en) | 2016-07-26 | 2016-07-26 | Multicomponent gas mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790647.3U CN205832986U (en) | 2016-07-26 | 2016-07-26 | Multicomponent gas mixing system |
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| Publication Number | Publication Date |
|---|---|
| CN205832986U true CN205832986U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790647.3U Active CN205832986U (en) | 2016-07-26 | 2016-07-26 | Multicomponent gas mixing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064026A (en) * | 2016-07-26 | 2016-11-02 | 液化空气（中国）研发有限公司 | Multicomponent gas mixing system |
| CN113441023A (en) * | 2021-07-26 | 2021-09-28 | 北京北方华创微电子装备有限公司 | Gas mixing mechanism, air inlet pipeline structure and semiconductor process equipment |
-
2016
- 2016-07-26 CN CN201620790647.3U patent/CN205832986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064026A (en) * | 2016-07-26 | 2016-11-02 | 液化空气（中国）研发有限公司 | Multicomponent gas mixing system |
| CN113441023A (en) * | 2021-07-26 | 2021-09-28 | 北京北方华创微电子装备有限公司 | Gas mixing mechanism, air inlet pipeline structure and semiconductor process equipment |
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