CN211976875U - Low-pollution burner for gas co-combustion - Google Patents
Low-pollution burner for gas co-combustion Download PDFInfo
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- CN211976875U CN211976875U CN202020456431.XU CN202020456431U CN211976875U CN 211976875 U CN211976875 U CN 211976875U CN 202020456431 U CN202020456431 U CN 202020456431U CN 211976875 U CN211976875 U CN 211976875U
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Abstract
A low-pollution burner for gas co-combustion belongs to the technical field of burners. The utility model discloses a low heat value gas spouts a mouthful pipe, high heat value gas spouts a mouthful pipe and combustion-supporting gas spouts a mouthful pipe, and low heat value gas spouts a mouthful pipe, high heat value gas spouts a mouthful pipe and combustion-supporting gas spouts a mouthful pipe and is circular spout, and the outer cover of low heat value gas spouts a mouthful pipe is equipped with high heat value gas spouts a mouthful pipe, and the outer cover of high heat value gas spouts a mouthful pipe is equipped with combustion-supporting gas spouts a mouthful pipe, has link up high heat value gas inlet pipe on the high heat value gas spouts a mouthful pipe, has link up combustion-supporting gas inlet pipe on the combustion-supporting gas spouts a mouthful pipe, it has a plurality of steady burning rings to be circular array on the inside wall of low heat value gas spouts a mouthful. The utility model discloses a combustor is by high calorific value gas parcel low calorific value gas to be aided with the combustion air that the periphery lets in with suitable ratio, realize flame staged combustion, reduce the formation of pollutant.
Description
Technical Field
The utility model relates to a combustor, concretely relates to low pollution combustor for gas co-combustion.
Background
The burner is a general term for a device for ejecting fuel and air in a certain manner to perform mixed combustion. The burners are classified into industrial burners, civil burners and special burners according to types and application fields. Is made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or metallic titanium. The burner functions to atomize the sample by flame combustion. The atomized test solution enters a burner, and a large amount of ground state atoms, and part of excited state atoms, ions and molecules are generated through the processes of drying, melting, evaporation, dissociation and the like under the action of flame temperature and flame atmosphere.
In the conventional gas burner, the inner layer uses a guide plate or a spray pipe to spray gas, and the outer side sprays combustion air. Because the fuel gases with different heat values need different flame strokes, the fuel gases with high heat values (coke oven gas and the like) and the fuel gases with low heat values (blast furnace gas, converter gas and the like) can not be mixed and burnt by the same burner.
SUMMERY OF THE UTILITY MODEL
The present invention has been developed in order to solve the above-mentioned problems, and a brief summary of the present invention is provided below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention.
The technical scheme of the utility model:
the utility model provides a low pollution combustor for gas co-combustion, includes low calorific value gas spout pipe, high calorific value gas spout pipe and combustion-supporting gas spout pipe, low calorific value gas spout pipe, high calorific value gas spout pipe and combustion-supporting gas spout pipe are circular spout, and the outer cover of low calorific value gas spout pipe is equipped with high calorific value gas spout pipe, and the outer cover of high calorific value gas spout pipe is equipped with combustion-supporting gas spout pipe, and low calorific value gas spout pipe, high calorific value gas spout pipe and combustion-supporting gas spout pipe are arranged with the axle center, it has high calorific value gas inlet pipe to link up on the high calorific value gas spout pipe, it has the combustion-supporting gas inlet pipe to link up on the combustion-supporting gas spout pipe, it has a plurality of steady burning rings to be circular array on the inside wall of low calorific value gas spout pipe.
Preferably: the low heat value gas spout pipe has set gradually installation section, compression section, straight section and expansion section along the axis, the installation section is square structure, and the compression section is the square circle transition structure, straight section is circular structure, the expansion section is toper expansion structure, high heat value gas spout pipe is installed on straight section.
Preferably: the left end faces of the low-calorific-value gas nozzle pipe, the high-calorific-value gas nozzle pipe and the combustion-supporting gas nozzle pipe are positioned on the same plane.
Preferably: the compression section and the straight section do not protrude from the installation section.
The utility model discloses following beneficial effect has: the utility model makes the gas spout of the conventional cyclone gas burner into a cavity type, low heat value gas passes through the low heat value gas in the low heat value gas spout pipe, high heat value gas passes through the high heat value gas in the high heat value gas spout pipe, the high heat value gas spout pipe and the combustion-supporting gas spout pipe outside the high heat value gas spout pipe are combustion-supporting air spouts, high heat value gas enters from the high heat value gas inlet pipe, the annular spout formed by the low heat value gas spout pipe and the high heat value gas spout pipe is sprayed at a higher flow rate to ensure that flame combustion is not backfire, inner side low heat value gas enters from one end of the low heat value gas spout pipe, low heat value gas is sprayed from the other end of the low heat value gas spout pipe at a lower flow rate to ensure the combustion position of flame, and high heat value gas wraps up low heat value gas, the low heat value gas is sprayed by the spout, combustion-supporting air introduced by proper proportion at the periphery, the combustion is more complete by the co-combustion, and therefore, the generation of pollutants can be reduced.
Drawings
FIG. 1 is a perspective view of a low pollution burner for gas co-combustion;
FIG. 2 is a cross-sectional view of a low pollution burner for gas co-combustion;
FIG. 3 is a top view of a low pollution burner for gas co-combustion;
FIG. 4 is a front view of the structure of a low heating value gas burner tube;
in the figure, 1-a low-calorific value gas nozzle pipe, 2-a high-calorific value gas nozzle pipe, 3-a combustion-supporting gas nozzle pipe, 4-a high-calorific value gas inlet pipe, 5-a combustion-supporting gas inlet pipe, 6-a stable combustion ring, 11-an installation section, 12-a compression section, 13-a straight section and 14-an expansion section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The utility model discloses the connection that mentions divide into fixed connection and can dismantle the connection, fixed connection (for being undetachable connection) includes but not limited to conventional fixed connection modes such as hem connection, rivet connection, adhesive connection and welded connection, can dismantle the connection including but not limited to conventional dismantlement modes such as threaded connection, buckle connection, pin joint and hinged joint, when not clearly prescribing a limit to concrete connection mode, defaulting always can find at least one kind of connected mode in current connected mode and can realize this function, and the technical staff in the art can select by oneself as required. For example: the fixed connection selects welding connection, and the detachable connection selects hinge connection.
The first embodiment is as follows: referring to fig. 1 to 4, the low pollution burner for gas co-combustion of the present embodiment is described, which includes a low calorific value gas burner pipe 1, a high calorific value gas burner pipe 2, and a combustion-supporting gas burner pipe 3, the low-calorific-value gas nozzle pipe 1, the high-calorific-value gas nozzle pipe 2 and the combustion-supporting gas nozzle pipe 3 are all circular nozzles, the high-calorific-value gas nozzle pipe 2 is sleeved on the outer layer of the low-calorific-value gas nozzle pipe 1, the combustion-supporting gas nozzle pipe 3 is sleeved on the outer layer of the high-calorific-value gas nozzle pipe 2, the low-calorific-value gas nozzle pipe 1, the high-calorific-value gas nozzle pipe 2 and the combustion-supporting gas nozzle pipe 3 are coaxially arranged, the high calorific value gas nozzle pipe 2 is provided with a high calorific value gas inlet pipe 4, the combustion-supporting gas nozzle pipe 3 is provided with a combustion-supporting gas inlet pipe 5, and the inner side wall of the low calorific value gas nozzle pipe 1 is provided with a plurality of stable combustion rings 6 in a circular array.
In the embodiment, the gas nozzle of the conventional rotational flow gas burner is made into a cavity type, low-heat-value gas passes through the cavity type rotational flow nozzle, high-heat-value gas passes through the cavity of the nozzle, and a combustion-supporting air nozzle is arranged outside the gas nozzle.
Specifically, a low-calorific-value gas ejection channel is formed on the inner side of the low-calorific-value gas ejection pipe 1, an annular high-calorific-value gas ejection channel is formed between the low-calorific-value gas ejection pipe 1 and the high-calorific-value gas ejection pipe 2, and an annular combustion-supporting gas ejection channel is formed between the combustion-supporting gas ejection pipe 3 and the high-calorific-value gas ejection pipe 2;
high calorific value gas enters from a high calorific value gas inlet pipe 4 and is sprayed out from an annular high calorific value gas spraying channel at a high flow rate, so that flame combustion is guaranteed against backfire;
the combustion-supporting gas is air or oxygen, enters from a combustion-supporting gas inlet pipe 5 and is sprayed out from an annular combustion-supporting gas spraying channel to assist combustion;
the inner side low-heat value gas enters from one end of the low-heat value gas nozzle pipe 1 and is sprayed out from the other end of the low-heat value gas nozzle pipe 1 at a low flow rate, the combustion position of flame is ensured, a stable combustion ring 6 is arranged on the inner side wall of the low-heat value gas nozzle pipe 1, the stable combustion ring 6 can balance the low-heat value gas flowing through the low-heat value gas nozzle pipe 1, and the combustion of the low-heat value gas is ensured to be more stable;
under the combustion mode, the low-heat-value fuel gas is wrapped by the high-heat-value fuel gas and is sprayed out of the nozzle, and the combustion air which is introduced into the nozzle in proper proportion is supplemented to the periphery of the nozzle, so that the staged combustion of flame is realized, the combustion is more thorough through the co-combustion, and the generation of pollutants is reduced.
The more optimized technical scheme is as follows: the low heat value fuel gas nozzle is in a cavity type, and low heat value fuel gas passes through the inside of the low heat value fuel gas nozzle.
The second embodiment is as follows: the low pollution burner for gas co-combustion of the present embodiment is described with reference to fig. 1 to 4, the low calorific value gas nozzle pipe 1 is provided with an installation section 11, a compression section 12, a straight section 13 and an expansion section 14 along an axis in sequence, the installation section 11 is a square structure, the compression section 12 is a square-circle transition structure, the straight section 13 is a circular structure, the expansion section 14 is a conical expansion structure, and the high calorific value gas nozzle pipe 2 is installed on the straight section 13.
The appearance structure of the low-calorific-value gas nozzle pipe 1 is formed through the structure, the mounting section 11 is of a square structure, and the stable mounting and the stable support of the whole gas burner can be realized through the mounting section 11 of the square structure;
by the contraction action of the compression section 12, the low-calorific-value gas is compressed in the compression section 12 of the low-calorific-value gas nozzle pipe 1 (although the low-calorific-value gas is compressed, the flow rate of the low-calorific-value gas is still lower than that of the high-calorific-value gas in the high-calorific-value gas nozzle pipe 2), so that the low-calorific-value gas is uniformly distributed in the low-calorific-value gas nozzle pipe 1 and uniformly circulates.
The third concrete implementation mode: referring to fig. 1 to 4, the low pollution burner for gas co-combustion of the present embodiment will be described, wherein the left end surfaces of the low calorific value gas burner pipe 1, the high calorific value gas burner pipe 2 and the combustion-supporting gas burner pipe 3 are on the same plane.
The fourth concrete implementation mode: referring to fig. 1 to 4, the low pollution burner for gas co-combustion of the present embodiment is described, wherein the compression section 12 and the straight section 13 do not protrude from the installation section 11, and the compression section 12 and the straight section 13 do not protrude from the installation section 11, so that the entire gas burner can be better installed through the installation section 11 and mounted on the gas burner installation seat of the boiler.
It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (4)
1. A low pollution combustor for gas co-combustion, its characterized in that: comprises a low-calorific-value gas nozzle pipe (1), a high-calorific-value gas nozzle pipe (2) and a combustion-supporting gas nozzle pipe (3), the low-calorific-value gas nozzle pipe (1), the high-calorific-value gas nozzle pipe (2) and the combustion-supporting gas nozzle pipe (3) are all circular nozzles, the high-calorific-value gas nozzle pipe (2) is sleeved on the outer layer of the low-calorific-value gas nozzle pipe (1), the combustion-supporting gas nozzle pipe (3) is sleeved on the outer layer of the high-calorific-value gas nozzle pipe (2), and the low-calorific-value gas nozzle pipe (1), the high-calorific-value gas nozzle pipe (2) and the combustion-supporting gas nozzle pipe (3) are coaxially arranged, a high calorific value gas inlet pipe (4) penetrates through the high calorific value gas nozzle pipe (2), a combustion-supporting gas inlet pipe (5) penetrates through the combustion-supporting gas nozzle pipe (3), the inner side wall of the low-calorific-value fuel gas nozzle pipe (1) is provided with a plurality of stable combustion rings (6) in a circular array.
2. A low pollution burner for gas co-combustion as claimed in claim 1, wherein: low heat value gas nozzle pipe (1) has set gradually installation section (11), compression section (12), straight section (13) and expansion section (14) along the axis, installation section (11) are square structure, and compression section (12) are square circle transition structure, straight section (13) are circular structure, expansion section (14) are toper expansion structure, high heat value gas nozzle pipe (2) are installed on straight section (13).
3. A low pollution burner for gas co-combustion as claimed in claim 1, wherein: the left end surfaces of the low-calorific-value gas nozzle pipe (1), the high-calorific-value gas nozzle pipe (2) and the combustion-supporting gas nozzle pipe (3) are positioned on the same plane.
4. A low pollution burner for gas co-combustion as claimed in claim 2, wherein: the compression section (12) and the straight section (13) do not protrude from the mounting section (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456431.XU CN211976875U (en) | 2020-04-01 | 2020-04-01 | Low-pollution burner for gas co-combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456431.XU CN211976875U (en) | 2020-04-01 | 2020-04-01 | Low-pollution burner for gas co-combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211976875U true CN211976875U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020456431.XU Active CN211976875U (en) | 2020-04-01 | 2020-04-01 | Low-pollution burner for gas co-combustion |
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| Country | Link |
|---|---|
| CN (1) | CN211976875U (en) |
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- 2020-04-01 CN CN202020456431.XU patent/CN211976875U/en active Active
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