CN203737170U - Gas mixing device - Google Patents
Gas mixing device Download PDFInfo
- Publication number
- CN203737170U CN203737170U CN201320849496.0U CN201320849496U CN203737170U CN 203737170 U CN203737170 U CN 203737170U CN 201320849496 U CN201320849496 U CN 201320849496U CN 203737170 U CN203737170 U CN 203737170U
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- CN
- China
- Prior art keywords
- gas
- mixing
- inlet pipe
- pipe
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a gas mixing device, comprising a main gas inlet pipe, a mixed gas inlet pipe, a mixing pipe, a contracting-type diversion pipe, a mixing chamber and an exhaust pipe; the mixing device is of a bilaterally symmetrical structure, the mixing chamber is formed in the middle of the mixing device, the contracting-type diversion pipe and the mixing pipe are sequentially connected to the two sides outwards, and the exhaust pipe is connected with the edge of the mixing chamber; the wide opening end of the contracting-type diversion pipe is connected with the mixing pipe, the narrow opening end of the contracting-type diversion pipe is connected with the middle part of the end face of the mixing chamber; the main gas inlet pipe is an injection pipe, a nozzle of the injection pipe is located in the mixing pipe, and the mixed gas inlet pipe which is vertical with the main gas inlet pipe is arranged on the mixing pipe. The gas mixing device disclosed by the utility model is used for mixing gases for three times, so that the mixing effect is good, the mixed gas meets the requirements of a standard gas for measurement and detection, and the gas mixing device disclosed by the utility model is used for solving the problem that an existing measurement and detection gas alarm cannot automatically prepare the standard gas and decreasing the application amount of standard gas cylinders.
Description
Technical field
The present invention relates to gas mixer technical field, be specifically related to a kind of for metering detection gas alarm gas mixer.
Background technology
Major part metering scientific research institute is detected in the process of gas alarm in metering, voluntarily preparation standard gas.Existing detection method is that the calibrating gas of purchasing variable concentrations passes into gas alarm and detects, and it is many that the method takies gas cylinder quantity, causes the wasting of resources; In testing process, need constantly to change gas cylinder, complex operation.
Chinese patent CN202621045U discloses a kind of gas mixer, sneaking into the circulate main air inlet pipe of mainstream gas of the conical pipe of gas by circle distribution mixes, then by closed-entry mozzle, enter volume hybrid chamber larger and built-in choke apparatus and mix, but its mist can not meet the requirement of calibrating gas for metering completely.
Summary of the invention
The invention provides and can make gas realize a kind of gas mixer mixing for three times, overcome the deficiency existing in above-mentioned gas blender, can make two kinds of gas rapid mixing evenly, fully, can meet the requirement of calibrating gas for metering.
The technical solution adopted in the present invention is: a kind of gas mixer, comprise main air inlet pipe, gaseous mixture air inlet pipe, mixing tube, closed-entry mozzle, hybrid chamber, blast pipe, described mixing arrangement adopts symmetrical structure, middle is hybrid chamber, both sides outwards connect closed-entry mozzle, mixing tube successively, and described blast pipe is connected with hybrid chamber edge; The wide mouth end of described closed-entry mozzle is connected with mixing tube, and the slot end of closed-entry mozzle is connected with hybrid chamber end face middle part; Described main air inlet pipe is playpipe, and the nozzle of this playpipe is positioned at mixing tube inside, and described mixing tube is provided with main air inlet pipe and is 90
ogaseous mixture air inlet pipe.
Described mixing tube also comprises distributing barrel, and distributing barrel is the internal layer of mixing tube shell, and space is between the two distribution of gas chamber, and distributing barrel is provided with hole, and hole is provided with mozzle.
The angle of described mozzle and distributing barrel is 30
o~ 45
o; And from main air inlet pipe air inlet direction, count the length of described mozzle, from long to short progressively transition.
The gas that described main air inlet pipe and gaseous mixture air inlet pipe pass into tentatively mixes at mixing tube.
Described closed-entry mozzle tapering is that 1:0.5～1:5, wide mouth end are more than or equal to 3:1 with the ratio of slot end diameter of a circle.
The mist that described hybrid chamber both sides enter clashes in opposite directions to flow at hybrid chamber middle part and carries out secondary mixing.
Gas after described impingement mix expands and carries out three mixing at the larger hybrid chamber of volume.
The invention has the beneficial effects as follows: 1, overall construction design of the present invention rationally, structure is comparatively simple, cost is lower; 2, application the present invention, mixes gas for three times, good mixing effect, and after mixing, the satisfied metering of gas detects the requirement with calibrating gas; 3, application the present invention, has solved current metering and has detected in gas alarm process the difficulty of preparation standard gas voluntarily, has reduced calibrating gas steel cylinder use amount.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
The main air inlet pipe of symbol description: 1-; 2-sneaks into gas air inlet pipe; 4-mixing tube; 5-closed-entry mozzle; 6-hybrid chamber; 7-blast pipe; 8-distribution of gas chamber; 9-distributing barrel; 10-hole; 11-mozzle.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described further.
As shown in Figure 1, a kind of gas mixer, comprise main air inlet pipe 1, gaseous mixture air inlet pipe 2, mixing tube 4, closed-entry mozzle 5, hybrid chamber 6, blast pipe 7, described mixing arrangement adopts symmetrical structure, middle is hybrid chamber 6, both sides outwards connect closed-entry mozzle 5, mixing tube 4 successively, and described blast pipe 7 is connected with hybrid chamber 6 edges; The wide mouth end of described closed-entry mozzle 5 is connected with mixing tube 4, and the slot end of closed-entry mozzle 5 is connected with hybrid chamber 6 end face middle parts; Described main air inlet pipe 1 is playpipe, and the nozzle of this playpipe is positioned at mixing tube 4 inside, and described mixing tube is provided with main air inlet pipe 1 and is 90
ogaseous mixture air inlet pipe 2.
Described mixing tube also comprises distributing barrel 9, and distributing barrel 9 is the internal layer of mixing tube shell, and space is between the two distribution of gas chamber 8, and distributing barrel 9 is provided with hole 10, and hole 10 is provided with mozzle 11.Gas enters distribution of gas chamber 8 by air inlet pipe, in distributing chamber 8, stop and gas uniform is distributed in to each mozzle 11 imports, gas enters in mixing tube 4 through the never comprovincial different angles of mozzle 11, reach the little effect of gas uniform, resistance that enters mixing tube 4, be more conducive to the even mixing with two kinds of gases that enters of gas.
Described mozzle 11 is 30 with the angle of distributing barrel
o~ 45
o, play and promote the gas entering from air inlet pipe towards the mobile effect of simulation model for mixing gases flows direction, be more conducive to gas and enter injector and mix from air inlet pipe; And from main air inlet pipe 1 air inlet direction, count, the length of described mozzle 11, progressively transition from long to short, more meets the stream of fluid, and gas flow resistance reduces, and has reduced the resistance that gas enters, and has further promoted the even mixing of two kinds of gases.
The gas that described main air inlet pipe 1 and gaseous mixture air inlet pipe 2 pass into tentatively mixes at mixing tube 4.
Described closed-entry mozzle 5 taperings are that 1:0.5～1:5, wide mouth end are more than or equal to 3:1 with the ratio of slot end diameter of a circle.
The mist that described hybrid chamber 6 both sides enter clashes in opposite directions at hybrid chamber 6 middle parts to flow and carries out secondary mixing.
Gas after described impingement mix expands and carries out three mixing at the larger hybrid chamber 6 of volume.
Before use, with vavuum pump, blender is vacuumized, the gas of sneaking into that then mainstream gas of certain flow enters mixing tube 4, certain flow by main air inlet pipe 1 is sneaked into gas air inlet pipe 2 by both sides and is entered mixing tube 4, tentatively mixes; And then, both sides mist flows into hybrid chambers 6 by closed-entry mozzle 5, clashes in opposite directions mobilely at hybrid chamber 6 middle parts, carries out secondary mixing; Gas after impingement mix carries out three times in the larger interior expansion of hybrid chamber 6 of volume to be mixed, and mixed effect is further promoted; The mist fully mixing is finally discharged by blast pipe 7.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (7)
1. a gas mixer, it is characterized in that, comprise main air inlet pipe, gaseous mixture air inlet pipe, mixing tube, closed-entry mozzle, hybrid chamber, blast pipe, described mixing arrangement adopts symmetrical structure, middle is hybrid chamber, both sides outwards connect closed-entry mozzle, mixing tube successively, and described blast pipe is connected with hybrid chamber edge; The wide mouth end of described closed-entry mozzle is connected with mixing tube, and the slot end of closed-entry mozzle is connected with hybrid chamber end face middle part; Described main air inlet pipe is playpipe, and the nozzle of this playpipe is positioned at mixing tube inside, and described mixing tube is provided with main air inlet pipe and is 90
ogaseous mixture air inlet pipe.
2. a kind of gas mixer according to claim 1, is characterized in that, described mixing tube also comprises distributing barrel, and distributing barrel is the internal layer of mixing tube shell, and space is between the two distribution of gas chamber, and distributing barrel is provided with hole, and hole is provided with mozzle.
3. a kind of gas mixer according to claim 2, is characterized in that, the angle of described mozzle and distributing barrel is 30
o~ 45
o; And from main air inlet pipe air inlet direction, count the length of described mozzle, from long to short progressively transition.
4. a kind of gas mixer according to claim 1, is characterized in that, the gas that described main air inlet pipe and gaseous mixture air inlet pipe pass into tentatively mixes at mixing tube.
5. a kind of gas mixer according to claim 1, is characterized in that, described closed-entry mozzle tapering is that 1:0.5～1:5, wide mouth end are more than or equal to 3:1 with the ratio of slot end diameter of a circle.
6. a kind of gas mixer according to claim 1, is characterized in that, the mist that described hybrid chamber both sides enter clashes in opposite directions to flow at hybrid chamber middle part and carries out secondary mixing.
7. a kind of gas mixer according to claim 6, is characterized in that, the gas after described impingement mix expands and carries out three times and mix at the larger hybrid chamber of volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849496.0U CN203737170U (en) | 2013-12-23 | 2013-12-23 | Gas mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849496.0U CN203737170U (en) | 2013-12-23 | 2013-12-23 | Gas mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737170U true CN203737170U (en) | 2014-07-30 |
Family
ID=51337035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849496.0U Expired - Fee Related CN203737170U (en) | 2013-12-23 | 2013-12-23 | Gas mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11772058B2 (en) | 2019-10-18 | 2023-10-03 | Taiwan Semiconductor Manufacturing Company Limited | Gas mixing system for semiconductor fabrication |
-
2013
- 2013-12-23 CN CN201320849496.0U patent/CN203737170U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11772058B2 (en) | 2019-10-18 | 2023-10-03 | Taiwan Semiconductor Manufacturing Company Limited | Gas mixing system for semiconductor fabrication |
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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: 20140730 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |