CN216897379U - Preheating device for low-nitrogen burner - Google Patents
Preheating device for low-nitrogen burner Download PDFInfo
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- CN216897379U CN216897379U CN202220545035.3U CN202220545035U CN216897379U CN 216897379 U CN216897379 U CN 216897379U CN 202220545035 U CN202220545035 U CN 202220545035U CN 216897379 U CN216897379 U CN 216897379U
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- preheating
- air
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- air inlet
- heat transfer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a preheating device for a low-nitrogen burner, which comprises a base, wherein a preheating box is connected above the base, the preheating box is hollow, the bottom of the preheating box is conical, a heat preservation seat is clamped at the lower part of the preheating box in a surrounding manner, an air inlet is arranged on one side of the preheating box, a heat transfer sheet is connected above the air inlet in the preheating box, a heater is connected at the bottom in the preheating box, a plurality of heating plates are connected between the heat transfer sheet and the top of the preheating box, and an air outlet is arranged at the top of one side, close to the air inlet, of the preheating box. Compared with the prior art, the utility model has the advantages that: by arranging the heat preservation seat and the heat preservation material, the utility model can effectively prevent the heated air from being gradually cooled and not reaching the preset temperature; the irregular U-shaped heat transfer sheet can form a plurality of heat cycles; the air after preliminary preheating can carry out the secondary and preheat when heating the air flue, makes the air preheat more fully.
Description
Technical Field
The utility model relates to the field of burners, in particular to a preheating device for a low-nitrogen burner.
Background
The burner is an important device on an industrial oil-fired boiler and a gas-fired boiler, and ensures processes such as stable ignition combustion of fuel and complete combustion of fuel, so that the burner is required to be started for suppressing the generation amount of NOx.
The preheating device for the existing burner has short preheating time, can not fully preheat air required by combustion well, further influences the combustion efficiency of the burner, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the technical defects and provide a preheating device for a low-nitrogen burner, which has the advantages of sufficient preheating and combustion efficiency improvement.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a preheating device for low-nitrogen burner, includes the base, the connection of base top is equipped with the preheating cabinet, the inside cavity of preheating cabinet, the preheating cabinet bottom is the toper, the preheating cabinet lower part encircles the joint and is equipped with the heat preservation seat, preheating cabinet one side is equipped with the air inlet, connect in the preheating cabinet in the air inlet top and be equipped with the heat transfer piece, the bottom connection is equipped with the heater in the preheating cabinet, it is equipped with a plurality of hot plates to be connected between heat transfer piece and the preheating cabinet top, it is equipped with the gas outlet to be close to air inlet one side top on the preheating cabinet.
Furthermore, a heat insulation material is filled between the heat insulation seat and the preheating box.
Furthermore, the heat transfer sheet is in an irregular U shape, and one end, far away from the air inlet, of the heat transfer sheet is provided with an air guide hole.
Furthermore, a plurality of heating air passages are arranged on the heating plate.
Further, an electric connection is adopted between the heater and the heating plate.
Further, an air pump is connected to the base.
Further, the air pump is communicated with the preheating box through an air inlet.
Compared with the prior art, the utility model has the advantages that: the utility model has simple and reasonable structure, and can effectively prevent the heated air from being gradually cooled and not reaching the preset temperature by arranging the heat preservation seat and the heat preservation material filled in the heat preservation seat; the irregular U-shaped heat transfer sheet can form a plurality of heat cycles; the air after preliminary preheating can carry out the secondary and preheat when heating the air flue, makes the air preheat more fully.
Drawings
Fig. 1 is a schematic view of the internal structure of a preheating device for a low-nitrogen burner according to the present invention.
As shown in the figure: 1. the device comprises a base, 2, a preheating box, 3, an air inlet, 4, a heat transfer sheet, 5, a heater, 6, a heating plate, 7, an air outlet, 8, a heat insulation material, 9, an air guide hole, 10, a heating air channel, 11, a heat insulation seat, 12 and an air pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Combine figure 1, a preheating device for low-nitrogen burner, including base 1, base 1 top is connected and is equipped with preheating cabinet 2, 2 inside cavitys of preheating cabinet, 2 bottoms of preheating cabinet are the toper, 2 lower parts of preheating cabinet encircle the joint and are equipped with heat preservation seat 11, 2 one sides of preheating cabinet are equipped with air inlet 3, connect in 3 tops of air inlet in preheating cabinet 2 and be equipped with heat transfer piece 4, the bottom connection is equipped with heater 5 in preheating cabinet 2, it is equipped with a plurality of hot plates 6 to connect between heat transfer piece 4 and the 2 tops of preheating cabinet, it is equipped with gas outlet 7 to be close to 3 one side tops of air inlet on preheating cabinet 2.
Fill between heat preservation seat 11 and the preheating cabinet 2 and be equipped with insulation material 8, heat transfer piece 4 is irregular U-shaped, it is equipped with air guide hole 9 to keep away from 3 one end of air inlet on heat transfer piece 4, be equipped with a plurality of heating air flues 10 on the hot plate 6, adopt the electricity to connect between heater 5 and the hot plate 6, the connection is equipped with air pump 12 on the base 1, communicate through air inlet 3 between air pump 12 and the preheating cabinet 2.
When the utility model is implemented, firstly, the air pump 12 pumps cold air into the preheating box 2 through the air inlet 3, the heater 5 is started, the air flows through the heat transfer sheet 4 after being heated for the first time, flows to the upper part of the heat transfer sheet 4 through the air guide hole 9, is heated for the second time by the heating plate 6 when flowing through the heating air passage 10, and is finally supplied for use through the air outlet 7.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. The utility model provides a preheating device for low-nitrogen combustor, includes base (1), its characterized in that: base (1) top is connected and is equipped with preheating cabinet (2), the inside cavity of preheating cabinet (2), preheating cabinet (2) bottom is the toper, preheating cabinet (2) lower part encircles the joint and is equipped with heat preservation seat (11), preheating cabinet (2) one side is equipped with air inlet (3), connect in air inlet (3) top in preheating cabinet (2) and be equipped with heat transfer piece (4), the bottom is connected in preheating cabinet (2) and is equipped with heater (5), it is equipped with a plurality of hot plates (6) to be connected between heat transfer piece (4) and preheating cabinet (2) top, it is equipped with gas outlet (7) to be close to air inlet (3) one side top on preheating cabinet (2).
2. The preheating device for a low-nitrogen burner according to claim 1, characterized in that: and a heat insulation material (8) is filled between the heat insulation seat (11) and the preheating box (2).
3. The preheating device for a low-nitrogen burner according to claim 1, characterized in that: the heat transfer sheet (4) is in an irregular U shape, and an air guide hole (9) is formed in one end, far away from the air inlet (3), of the heat transfer sheet (4).
4. The preheating device for a low-nitrogen burner according to claim 1, characterized in that: the heating plate (6) is provided with a plurality of heating air passages (10).
5. The preheating device for a low-nitrogen burner according to claim 1, characterized in that: the heater (5) and the heating plate (6) are electrically connected.
6. The preheating device for a low-nitrogen burner according to claim 1, characterized in that: an air pump (12) is connected to the base (1).
7. The preheating device for a low-nitrogen burner according to claim 6, characterized in that: the air pump (12) is communicated with the preheating box (2) through an air inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545035.3U CN216897379U (en) | 2022-03-14 | 2022-03-14 | Preheating device for low-nitrogen burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545035.3U CN216897379U (en) | 2022-03-14 | 2022-03-14 | Preheating device for low-nitrogen burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216897379U true CN216897379U (en) | 2022-07-05 |
Family
ID=82191580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220545035.3U Active CN216897379U (en) | 2022-03-14 | 2022-03-14 | Preheating device for low-nitrogen burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216897379U (en) |
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2022
- 2022-03-14 CN CN202220545035.3U patent/CN216897379U/en active Active
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