CN210772157U - Water-cooling type thick and thin burner - Google Patents
Water-cooling type thick and thin burner Download PDFInfo
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- CN210772157U CN210772157U CN201921090083.2U CN201921090083U CN210772157U CN 210772157 U CN210772157 U CN 210772157U CN 201921090083 U CN201921090083 U CN 201921090083U CN 210772157 U CN210772157 U CN 210772157U
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Abstract
The utility model relates to a water-cooling type thick and thin burner, a plurality of fire rows are arranged on a fixed frame side by side, and a gap is arranged between two adjacent fire rows; the main gas pipe is arranged on the side surface of the fixing frame, the gas inlet pipe is arranged on the main gas pipe, a plurality of gas distribution pipes are arranged on the inner side of the main gas pipe, and the plurality of gas distribution pipes correspond to the inlets of the plurality of fire grates one by one respectively; the water cooling pipe passes through a plurality of fire rows, and the water cooling pipe is close to the flame ports of the fire rows. The utility model relates to a water-cooling rich and lean burner, gas enter into the main trachea through the gas intake pipe, then get into the mixing chamber in each fire row respectively through the gas-distributing pipe, and the air gets into between two adjacent fire rows, and in the flame vent department of fire row, thick flame in the middle of forming, the light flame in both sides, under the effect of water-cooling pipe, the temperature reduction of flame vent (being less than 1200 ℃), therefore nitrogen oxide's formation volume greatly reduced has further satisfied the requirement that low nitrogen discharged.
Description
Technical Field
The utility model relates to a water-cooled dense-dilute combustor. Belongs to the technical field of burners.
Background
The principle of the rich-lean burner is that one part of fuel is over-rich combusted, the other part of fuel is over-lean combusted, and the air quantity is kept unchanged as a whole. NOx is low because both portions are burning at off-stoichiometric ratios, which is also known as off-stoichiometric or non-stoichiometric combustion.
The increase in temperature has a promoting effect on the amount of fuel type NOx produced. Below 1200 ℃, it increases significantly with increasing temperature; when the temperature is over 1200 ℃, the speed increasing is smooth; in the existing rich-lean burner, the temperature of the flame port of the fire row is above 1300 ℃, so how to reduce the temperature of the flame port is an important factor for low NOx emission.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, a water-cooled type rich-lean burner is provided.
The purpose of the utility model is realized like this:
a water-cooling type rich-lean burner is characterized in that: the device comprises a fixed frame, a fire grate, a fuel gas inlet pipe, a main gas pipe and a water cooling pipe;
the fire rows are arranged on the fixing frame side by side, and a gap is reserved between every two adjacent fire rows;
the main gas pipe is arranged on the side surface of the fixing frame, the gas inlet pipe is arranged on the main gas pipe, a plurality of gas distribution pipes are arranged on the inner side of the main gas pipe, and the plurality of gas distribution pipes correspond to the inlets of the plurality of fire grates one by one respectively;
the water cooling pipe passes through a plurality of fire rows, and the water cooling pipe is close to the flame ports of the fire rows.
Further, the number of the gas inlet pipes is two.
Furthermore, the water-cooling pipe is S-shaped.
Furthermore, an axial first guide plate and a radial second guide plate are arranged on the main air pipe.
Furthermore, a reinforcing rib plate is arranged on the gas pipe, one side of the reinforcing rib plate is connected with the main gas pipe, and the other side of the reinforcing rib plate is connected with the gas inlet pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a dense-thin combustor of water-cooled type, gas enter into the main trachea through the gas intake pipe, then get into the mixing chamber in each fire row respectively through the gas-distributing pipe, and the air gets into between two adjacent fire rows, and in the flame vent department of fire row, thick flame in the middle of forming, the light flame in both sides, under the effect of water-cooling pipe, the temperature reduction of flame vent (being less than 1200 ℃), therefore nitrogen oxide's formation volume greatly reduced has further satisfied the requirement that low nitrogen discharged.
Drawings
Fig. 1 is a schematic view of a water-cooled lean and rich burner of the present invention.
Fig. 2 is a schematic view of another angle of the present invention.
In the figure:
the gas burner comprises a fixing frame 1, a fire grate 2, a flame opening 2.1, a gas inlet pipe 3, a main gas pipe 4, a first guide plate 4.1, a second guide plate 4.2 and a water cooling pipe 5.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1-2, the utility model relates to a water-cooling type shade burner, which comprises a fixed frame 1, a fire grate 2, a fuel gas inlet pipe 3, a main gas pipe 4 and a water-cooling pipe 5;
a plurality of fire rows 2 are arranged on the fixed frame 1 side by side, and a gap is reserved between every two adjacent fire rows 2;
the main gas pipe 4 is arranged on the side face of the fixing frame 1, the two gas inlet pipes 3 are respectively arranged on the main gas pipe 4, the gas pipe 3 is provided with a reinforcing rib plate 3.1, one side of the reinforcing rib plate 3.1 is connected with the main gas pipe 4, the other side of the reinforcing rib plate 3.1 is connected with the gas inlet pipe 3, the inner side of the main gas pipe 4 is provided with a plurality of gas distribution pipes, and the plurality of gas distribution pipes correspond to the inlets of the plurality of fire grates 2 one by one; the main air pipe 4 is provided with an axial first guide plate 4.1 and a radial second guide plate 4.2, and the two guide plates are helpful for air to enter a gap between adjacent fire grates;
the water cooling pipe 5 is S-shaped and penetrates through the fire rows 2, and the water cooling pipe 5 is close to the flame ports 2.1 of the fire rows 2.
The working principle is as follows:
the utility model relates to a dense and light combustor of water-cooled type, the gas enters main trachea 4 through gas intake pipe 3, then gets into the mixing chamber in each fire row 2 respectively through the gas-distributing pipe, the air gets into from between two adjacent fire rows 2, flame opening 2.1 department at fire row 2, dense flame in the middle of forming, the weak flame in both sides, under the effect of water-cooling pipe 5, flame opening 2.1's temperature reduces (is less than 1200 ℃), therefore nitrogen oxide's formation volume greatly reduced, the requirement that low nitrogen discharged has further been satisfied.
In the above embodiments, the present invention has been described only by way of example, but various modifications may be made by those skilled in the art after reading the present patent application without departing from the spirit and scope of the invention.
Claims (5)
1. A water-cooling type rich-lean burner is characterized in that: the device comprises a fixed frame, a fire grate, a fuel gas inlet pipe, a main gas pipe and a water cooling pipe;
the fire rows are arranged on the fixing frame side by side, and a gap is reserved between every two adjacent fire rows;
the main gas pipe is arranged on the side surface of the fixing frame, the gas inlet pipe is arranged on the main gas pipe, a plurality of gas distribution pipes are arranged on the inner side of the main gas pipe, and the plurality of gas distribution pipes correspond to the inlets of the plurality of fire grates one by one respectively;
the water cooling pipe passes through a plurality of fire rows, and the water cooling pipe is close to the flame ports of the fire rows.
2. The water-cooled lean and rich burner according to claim 1, wherein: the gas inlet pipe has two.
3. The water-cooled lean and rich burner according to claim 1, wherein: the water-cooling pipe is S-shaped.
4. The water-cooled lean and rich burner according to claim 1, wherein: the main air pipe is provided with an axial first guide plate and a radial second guide plate.
5. The water-cooled lean and rich burner according to claim 1, wherein: be provided with deep floor on the gas pipe, one side and the main gas piping connection of deep floor, the another side and the gas of deep floor advance union coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090083.2U CN210772157U (en) | 2019-07-12 | 2019-07-12 | Water-cooling type thick and thin burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090083.2U CN210772157U (en) | 2019-07-12 | 2019-07-12 | Water-cooling type thick and thin burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210772157U true CN210772157U (en) | 2020-06-16 |
Family
ID=71057410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921090083.2U Active CN210772157U (en) | 2019-07-12 | 2019-07-12 | Water-cooling type thick and thin burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210772157U (en) |
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2019
- 2019-07-12 CN CN201921090083.2U patent/CN210772157U/en active Active
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