CN202253649U - Gas nozzle - Google Patents
Gas nozzle Download PDFInfo
- Publication number
- CN202253649U CN202253649U CN2011203224805U CN201120322480U CN202253649U CN 202253649 U CN202253649 U CN 202253649U CN 2011203224805 U CN2011203224805 U CN 2011203224805U CN 201120322480 U CN201120322480 U CN 201120322480U CN 202253649 U CN202253649 U CN 202253649U
- Authority
- CN
- China
- Prior art keywords
- gas
- gas nozzle
- escape pipe
- gas outlet
- ring wall
- 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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- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
The utility model discloses a gas nozzle. The gas nozzle comprises a gas inlet and a gas outlet, wherein the internal diameter of the gas nozzle is gradually reduced from the gas inlet to the gas outlet; the gas outlet of the gas nozzle is connected with a gas outlet pipe; and the pipe wall thickness of the gas outlet pipe is smaller than 1/4 of the internal diameter of the gas outlet pipe. Due to the structure, local negative pressure can be further assisted in forming when gas is ejected, and the gas can be contacted with more air to be mixed with the air, so that combustion efficiency is improved, and CO is reduced.
Description
Technical field
The utility model relates to a kind of burner, particularly wherein gas nozzle.
Background technology
At present, the combustion system of combustion gas tool adopts premix air type combustion system more, wherein, inevitably need use gas nozzle.Gas nozzle in use, combustion gas is sprayed in the burner burner through nozzle, thereby forms negative pressure in the ejection cavity of burner burner, drives the ejection cavity that air gets into burner, satisfies the burning demand of burner.
The structure of existing gas nozzle self only plays the effect of delivery of fuel gas, and not enough to some extent aspect help air and combustion gas mixing, the thermal efficiency is low, is easy to the situation that causes CO to exceed standard.
The utility model content
The technical problem that the utility model will solve is: a kind of increase gas outlet flow velocity is provided, helps to improve the gas nozzle that air mixes.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
Gas nozzle comprises air inlet and gas outlet, it is characterized in that: gas nozzle reduces from the internal diameter of air inlet to the gas outlet gradually, on the gas outlet of gas nozzle, is connected with escape pipe, and the pipe thickness of said escape pipe is less than 1/4 internal diameter of escape pipe.
The undergauge setting of gas nozzle internal diameter; Make that under equal flow the gas flow rate of escape pipe ejection is greater than the gas flow rate of the outlet of general gas nozzle, thereby combustion gas is after nozzle sprays at a high speed; Can further assist to form local decompression, and the air around the injection is realized mixing; The thin-walled of escape pipe is arranged so that at gas outlet more air is arranged, thereby combustion gas can contact with more air, and the promotion air mixes with combustion gas.
Adopt technique scheme, the utility model has reached following beneficial effect with respect to prior art: improve efficiency of combustion, reduce the generation of CO.
A kind of optimal way as this technical scheme is provided with ring wall around escape pipe, forms groove between ring wall and the escape pipe, and simultaneously, the outlet side of escape pipe exceeds ring wall.
Being provided with of ring wall can protect escape pipe not to be collided, also can the auxiliary fixing gas nozzle.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further explanation, wherein:
Fig. 1 is the stereogram of first embodiment of the utility model gas nozzle;
Fig. 2 is the front view of embodiment shown in Figure 1;
Fig. 3 is an embodiment shown in Figure 1 along the A of longitudinal axis to cutaway view;
Fig. 4 is the stereogram of second embodiment of the utility model gas nozzle.
The specific embodiment
What Fig. 1-Fig. 3 showed is first embodiment of the utility model gas nozzle.Like Fig. 1, shown in Figure 3, in this embodiment, gas nozzle 1 comprises air inlet 2 and gas outlet 4, and gas nozzle 1 reduces with stepped from the internal diameter of air inlet 2 to gas outlet 4 gradually, on the gas outlet 4 of gas nozzle 1, is connected with escape pipe 5.
The pipe thickness of said escape pipe 5 must that is to say 1/4 diameter less than gas outlet 4 less than 1/4 internal diameter of escape pipe 5.Such setting is that the tube wall in order to ensure escape pipe 5 is a thin-walled, to guarantee flowing of air.
Wherein, be provided with ring wall 3, form groove 31 between ring wall 3 and the escape pipe 5 around escape pipe 5.As shown in Figure 2, the outlet side of escape pipe 5 must exceed ring wall 3, brings negative influence to avoid 3 pairs of air-swirls of ring wall; The setting of groove 31 also is in order further to reduce the negative effect that 3 pairs of air of ring wall flow and bring.
What Fig. 4 showed is second embodiment of the utility model gas nozzle.This embodiment is the improvement to first embodiment, and its difference is, on ring wall 3, is provided with the passage 6 of a plurality of hollow outs.Can increase the flowability of air like this.
Combine the accompanying drawing and the specific embodiment that the utility model has been done detailed explanation above; But the utility model is not limited to this; The technical staff in any present technique field is in the ken that is possessed; Under the prerequisite of the utility model aim, can make various distortion and modification to it.
Claims (3)
1. gas nozzle comprises air inlet and gas outlet, it is characterized in that: gas nozzle reduces from the internal diameter of air inlet to the gas outlet gradually, on the gas outlet of gas nozzle, is connected with escape pipe, and the pipe thickness of said escape pipe is less than 1/4 internal diameter of escape pipe.
2. gas nozzle according to claim 1 is characterized in that: be provided with ring wall around escape pipe, form groove between ring wall and the escape pipe, simultaneously, the outlet side of escape pipe exceeds ring wall.
3. gas nozzle according to claim 2 is characterized in that: the passage that on ring wall, is provided with a plurality of hollow outs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203224805U CN202253649U (en) | 2011-08-31 | 2011-08-31 | Gas nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203224805U CN202253649U (en) | 2011-08-31 | 2011-08-31 | Gas nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253649U true CN202253649U (en) | 2012-05-30 |
Family
ID=46114885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203224805U Expired - Fee Related CN202253649U (en) | 2011-08-31 | 2011-08-31 | Gas nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287824A (en) * | 2011-08-31 | 2011-12-21 | 昆山三智电子工业有限公司 | Gas nozzle |
-
2011
- 2011-08-31 CN CN2011203224805U patent/CN202253649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287824A (en) * | 2011-08-31 | 2011-12-21 | 昆山三智电子工业有限公司 | Gas nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130831 |