CN203784951U - Injection commingler - Google Patents
Injection commingler Download PDFInfo
- Publication number
- CN203784951U CN203784951U CN201420180488.6U CN201420180488U CN203784951U CN 203784951 U CN203784951 U CN 203784951U CN 201420180488 U CN201420180488 U CN 201420180488U CN 203784951 U CN203784951 U CN 203784951U
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- China
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- injection
- tube
- air
- gas
- commingling
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- Expired - Fee Related
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Abstract
The utility model discloses an injection commingler which comprises an outer fire injection nozzle, an inner fire injection nozzle and an injection tube. The injection tube is composed of an air sucking collapsible tube, an injection commingling tube and an injection diffuser pipe, the injection commingling tube is in a cylindrical shape, the diameter of an air inlet of the air sucking collapsible tube is larger than that of an air outlet of the air sucking collapsible tube, the diameter of an air inlet of the injection diffuser tube is smaller than that of an air outlet of the injection diffuser tube, and a protrusion is arranged on the tube wall of the injection commingling tube. Compared with the prior art, the injection commingling tube specially used for mixing gas and air is additionally arranged in the injection commingler, the protrusion is arranged in the injection commingling tube to improve the roughness of the tube wall, and the injection commingling tube can guarantee that the gas and the air are fully mixed to be sent into the head portion of a combustor to be combusted. Thus, the gas can be combusted fully, the emission of harmful gas is reduced, and the thermal efficiency of the gas is improved.
Description
Technical field
The utility model relates to the parts of gas-cooker, the mixer-ejector on especially a kind of embedded gas range.
Background technology
Gas-cooker is the conventional a kind of kitchen utensils of current family, it mainly comprises the kitchen range top, pan bracket, burner, mixer-ejector etc., when entering mixer-ejector inside by the nozzle on mixer-ejector, combustion gas or liquefied petroleum gas bring a certain amount of air into, air mixes in mixer-ejector with combustion gas, mixed gas enters the gas distribution chamber of burner, light by ignition at burner head, realize the heating to the bottom of a pan, can say the discharge capacity of pernicious gas when combustion gas and the air mixture homogeneity in mixer-ejector has directly determined the thermal efficiency of fuel gas buring and burnt, the pipeline of the mixer-ejector of traditional gas-cooker is all columniform, be that air inlet is identical with the diameter of gas outlet, and tube wall is smooth, such fault of construction is entering after mixer-ejector combustion gas, combustion gas and air just directly burn from entering burner head after of short duration mixing, will cause like this combustion gas to mix with air even not, burn abundant not, reduce the thermal efficiency of combustion gas, while having strengthened burning, pernicious gas is as CO, the discharge of NOx, severe contamination environment.
Utility model content
The purpose of this utility model is that the deficiency that overcomes above-mentioned technology provides a kind of mixer-ejector that can make combustion gas mix, improve thermal efficiency of gas stove, minimizing noxious gas emission with air.
For achieving the above object, the technical solution of the utility model is:
Mixer-ejector, comprise outer fiery driving nozzle, interior fiery driving nozzle and induction tunnel, described induction tunnel is made up of air-breathing collapsible tube, injection mixing tube and injection diffuser pipe, described injection mixing tube is cylindrical, the air inlet diameter of air-breathing collapsible tube is greater than gas outlet diameter, the air inlet diameter of injection diffuser pipe is less than gas outlet diameter, on the tube wall of injection mixing tube, is provided with projection.
As the further setting of such scheme, the length L 2 of described injection mixing tube is greater than 2 times of injection diffuser pipe length L 1.
The utility model calculates and the experiment proved that its effect by theory.Main preferred parameter is: air intake diameter is respectively φ 11, φ 15; Ball bevel radius R14～16 of air-breathing collapsible tube; Throat diameter is φ 15; Mixed tube diameter is φ 15, and length is 42mm; Anemostat subtended angle is 7 °; Its u=13(conventional burners of the mixer-ejector of this design of experimental verification is < 10), excess air coefficient α=1.8(conventional burners is 2.5), primary air ratio α ＇=0.81(conventional burners is 0.6), energy-loss factor K=1.5(conventional burners is 2.5～3.5).
The beneficial effects of the utility model are: compared with prior art, in mixer-ejector, increase by one section and be specifically designed to the injection mixing tube that combustion gas mixes with air, injection mixing tube inside is provided with projection, increase the roughness of tube wall, by the setting of injection mixing tube, can ensure to enter burner head burning after combustion gas mixes fully with air, so just make fuel gas buring more abundant, reduce the discharge capacity of pernicious gas, improved the combustion gas thermal efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model.
In figure: outer fiery driving nozzle 11, interior fiery driving nozzle 12, induction tunnel 2, air-breathing collapsible tube 21, injection mixing tube 22, injection diffuser pipe 23.
Detailed description of the invention
Below in conjunction with accompanying drawing, and, the utility model is described further in conjunction with the embodiments.
Embodiment:
As shown in Figure 2, mixer-ejector, comprise outer fiery driving nozzle 11, interior fiery driving nozzle 12 and induction tunnel 2, described induction tunnel 2 is made up of air-breathing collapsible tube 21, injection mixing tube 22 and injection diffuser pipe 23, described injection mixing tube 22 is cylindrical, the air inlet diameter of air-breathing collapsible tube 21 is greater than gas outlet diameter, and the air inlet diameter of injection diffuser pipe 23 is less than gas outlet diameter, on the tube wall of injection mixing tube 22, is provided with projection.
The length L 2 of described injection mixing tube 23 is greater than 2 times of injection diffuser pipe 23 length L 1.
Through theoretical calculate and experimental study and normal velocity isopleth map and the combustion gas quality concentration isopleth map of computer CFD computing function on each characteristic cross-section of mixer-ejector different phase, to analyze the velocity field of mist and the situation of concentration field in each feature stage.By optimal design mixer-ejector, set up same diameter and had the mixing section of certain length, improved burner primary air ratio.The utility model mixer-ejector is the Venturi tube characteristic with mixation tube section, and it is made up of air-breathing collapsible tube 21, injector throat, injection mixing tube 22 and injection diffuser pipe 23, and air-breathing collapsible tube 21 is arc transition with the connecting portion of injector throat.The combustion gas with certain supply gas pressure enters the air-breathing collapsible tube 21 of mixer-ejector through the injection of nozzle, because the speed kinetic energy of combustion gas is brought primary air into and is entered injector throat, in fully mixing of the interior air of injection mixing tube 22 and combustion gas, enter gas distribution chamber through the deceleration of injection diffuser pipe 23 again, ensure that with this gaseous mixture that enters burner has certain static pressure, overflow from burner head fire hole (fiery groove) equably, form the blue cone internal flame of atmospheric combustion mode uniqueness through ignition combustion, then be mixed to form diffusion flame face through auxiliary air.
The utility model calculates and the experiment proved that its effect by theory.Main preferred parameter is: air intake diameter is respectively φ 11, φ 15; Ball bevel radius R14～16 of air-breathing collapsible tube; Throat diameter is φ 15; Mixed tube diameter is φ 15, and length is 42mm; Anemostat subtended angle is 7 °; Its u=13(conventional burners of the mixer-ejector of this design of experimental verification is < 10), excess air coefficient α=1.8(conventional burners is 2.5), primary air ratio α ＇=0.81(conventional burners is 0.6), energy-loss factor K=1.5(conventional burners is 2.5～3.5).
Operation principle of the present utility model is: when combustion gas enters induction tunnel 2 inside by outer fiery driving nozzle 11 and interior fiery driving nozzle 12, bring a certain amount of air into, air and combustion gas are in induction tunnel 2 internal mix, be provided with protruding injection mixing tube 22 owing to having increased by one section of tube wall on mixer-ejector, mist reduces entering the rear flow velocity of injection mixing tube 22, increase the incorporation time of the two, ensure the abundant mixing of the two, gas after mixing enters burner head by injection diffuser pipe 23 and lights, effectively like this ensure that combustion gas can burn fully, reduce the discharge of pernicious gas, environmental protection more.
Claims (2)
1. mixer-ejector, comprise outer fiery driving nozzle (11), interior fiery driving nozzle (12) and induction tunnel (2), it is characterized in that: described induction tunnel (2) is made up of air-breathing collapsible tube (21), injection mixing tube (22) and injection diffuser pipe (23), described injection mixing tube (22) is cylindrical, the air inlet diameter of air-breathing collapsible tube (21) is greater than gas outlet diameter, the air inlet diameter of injection diffuser pipe (23) is less than gas outlet diameter, on the tube wall of injection mixing tube (22), is provided with projection.
2. mixer-ejector as claimed in claim 1, is characterized in that: the length L 2 of described injection mixing tube (23) is greater than 2 times of injection diffuser pipe (23) length L 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180488.6U CN203784951U (en) | 2014-04-13 | 2014-04-13 | Injection commingler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180488.6U CN203784951U (en) | 2014-04-13 | 2014-04-13 | Injection commingler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784951U true CN203784951U (en) | 2014-08-20 |
Family
ID=51321131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420180488.6U Expired - Fee Related CN203784951U (en) | 2014-04-13 | 2014-04-13 | Injection commingler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939907A (en) * | 2014-04-13 | 2014-07-23 | 金丽秋 | Ejector mixer |
| WO2016154981A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳智慧能源技术有限公司 | Venturi burner capable of enhancing air-flow mixing |
| CN108548178A (en) * | 2018-05-15 | 2018-09-18 | 芜湖美的厨卫电器制造有限公司 | Burner and apply its water heater |
-
2014
- 2014-04-13 CN CN201420180488.6U patent/CN203784951U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939907A (en) * | 2014-04-13 | 2014-07-23 | 金丽秋 | Ejector mixer |
| WO2016154981A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳智慧能源技术有限公司 | Venturi burner capable of enhancing air-flow mixing |
| CN108548178A (en) * | 2018-05-15 | 2018-09-18 | 芜湖美的厨卫电器制造有限公司 | Burner and apply its water heater |
| WO2019218414A1 (en) * | 2018-05-15 | 2019-11-21 | 芜湖美的厨卫电器制造有限公司 | Combustor and water heater using same |
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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: 20140820 Termination date: 20150413 |
|
| EXPY | Termination of patent right or utility model |