CN218154310U - Air preheater of underground flue - Google Patents
Air preheater of underground flue Download PDFInfo
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- CN218154310U CN218154310U CN202120604573.0U CN202120604573U CN218154310U CN 218154310 U CN218154310 U CN 218154310U CN 202120604573 U CN202120604573 U CN 202120604573U CN 218154310 U CN218154310 U CN 218154310U
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- air
- flue
- chamber
- air inlet
- heat
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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 relates to an air heater of underground flue belongs to the industrial furnace field. The utility model discloses an air inlet chamber, heat pipe, heat conduction fin, air duct, air play air chamber and flue, air inlet chamber and air play air chamber pass through the air duct intercommunication, the flue sets up on air inlet chamber and air play air chamber, the heat pipe is installed in the flue, the heat conduction fin is installed in the heat pipe. The air inlet butt flange and the air outlet butt flange are respectively arranged on the air inlet chamber and the air outlet chamber. The main effect is that the cold air in the air preheater is heated through the flue gas, and the air temperature is improved by recycling partial heat of the flue gas, thereby achieving the energy-saving effect.
Description
Technical Field
The utility model relates to an air heater of underground flue belongs to the industrial furnace field.
Background
The air preheater is a heat exchanger widely used in the industrial furnace industry, namely, hot air with certain temperature is preheated by flue gas in a flue through the preheater before entering the industrial furnace, the air preheater is a device for improving heat exchange performance and reducing energy consumption, and in order to ensure heat effect and efficiency, the heat exchange area generally needs to be increased, so that various different air preheaters are designed for people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, heat exchange area is big, improves air temperature, reduces flue gas temperature, reaches the air heater of the underground flue of the energy-conserving effect of industrial furnace.
The utility model provides a technical scheme that above-mentioned problem adopted is: the air preheater of the underground flue is structurally characterized in that: including air inlet chamber, heat pipe, heat conduction fin, air duct, air play air chamber and flue, air inlet chamber goes out the air chamber with the air and passes through the air duct intercommunication, the flue sets up on air inlet chamber and air play air chamber, the heat pipe is installed in the flue, the heat conduction fin is installed in the heat pipe.
The air inlet butt flange and the air outlet butt flange are respectively arranged on the air inlet chamber and the air outlet chamber.
Further, still include the lug, all be provided with the lug on air inlet chamber and the air outlet chamber.
Furthermore, the quantity of heat pipe is multiunit, and adjacent two sets of heat pipe is crisscross to be set up.
Furthermore, the heat conduction fins are arranged in a twist structure.
Further, the air passage is disposed below the flue.
Compared with the prior art, the utility model has the advantages of it is following: the main effect is that the cold air in the air preheater is heated through the flue gas, and the partial heat of the flue gas is recycled to improve the air temperature, thereby achieving the energy-saving effect.
The heat conducting fins are welded in the heat conducting pipes, the heat exchange area of cold air and the heat conducting fins is increased, air passing through the preheater enters the furnace, the drying, firing and burning processes of fuel are accelerated, the burning efficiency is improved, meanwhile, the smoke exhaust temperature of a chimney is reduced, and the heat efficiency is improved.
The preheater is arranged in the underground flue, and the flue is used for flue gas circulation as one part of the preheater device, so that the steel structure material of the preheater can be saved.
Drawings
Fig. 1 is a front view of the preheater of the present invention.
Fig. 2 is a top view of the preheater of the present invention.
Fig. 3 is a sectional view of the preheater of the present invention.
Fig. 4 is a left side view of the preheater of the present invention.
Fig. 5 is the lifting lug of the preheater of the utility model.
Fig. 6 shows the heat conducting fins of the preheater of the present invention.
In the figure: the air inlet butt flange comprises an air inlet butt flange 1, an air inlet chamber 2, a heat conduction pipe 3, heat conduction fins 4, an air channel 5, a lifting lug 6, an air outlet chamber 7, an air outlet butt flange 8 and a flue 9.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present invention and are not intended to limit the present invention.
Examples
Referring to fig. 1 to 6, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. In addition, in the present specification, if there are words such as "upper", "lower", "left", "right", "middle" and "one", the description is for clarity of description only, and is not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The air heater of underground flue in this embodiment, including air inlet flange 1, air inlet room 2, heat pipe 3, heat conduction fin 4, air passage 5, lug 6, air goes out air outlet room 7, air outlet flange 8 and flue 9, air inlet room 2 and air go out air outlet room 7 and pass through air passage 5 intercommunication, flue 9 sets up on air inlet room 2 and air outlet room 7, heat pipe 3 installs in flue 9, heat conduction fin 4 installs in heat pipe 3, air passage 5 sets up the below at flue 9.
Air inlet flange 1 and air outlet flange 8 in this embodiment set up respectively on air inlet chamber 2 and air play air chamber 7, all are provided with lug 6 on air inlet chamber 2 and the air play air chamber 7, and the quantity of heat pipe 3 is the multiunit, and adjacent two sets of heat pipe 3 is crisscross to be set up, and heat conduction fin 4 is the setting of twist column structure.
The flue gas flows through the underground flue, heats the heat conduction pipe 3 and the heat conduction fins 4 of the preheater, cold air flows into the air inlet chamber 2 from the air inlet butt flange 1, then enters the heat conduction pipe 3, exchanges heat with the heat conduction pipe 3 and the heat conduction fins 4, then enters the air channel 5, enters the heat conduction pipe 3 on the other side, exchanges heat with the heat conduction pipe 3 and the heat conduction fins 4 again, then enters the air outlet chamber 7, and preheated air flows out of the industrial furnace equipment from the air outlet butt flange 8 to support combustion.
The air inlet butt flange 1 is made of a Q235-A steel plate and is used for butt joint of a cold air pipeline.
The air intake chamber 2 is made of a Q235-a steel plate for the intake of cold air.
The heat conductive pipes 3 are made of 304 stainless seamless steel pipes.
The heat conducting fins 4 are made of a 304 stainless steel plate 1.5mm thick twisted at 720 °.
The air outlet chamber 5 is made of a Q235-A steel plate, and is used for enabling preheated cold air to enter the chamber body and then enter the heat conduction pipe 3 from the other side and simultaneously serve as a supporting base of the device.
The lifting lug 6 is made of a Q235-A steel plate, is used for lifting the device and can be used as a reinforcing rib plate of the device.
The air outlet chamber 7 is made of a Q235-A steel plate and is used for discharging hot air.
The air outlet docking flange 8 is made of a Q235-A steel plate and is used for docking the hot air pipeline.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the foundation the utility model discloses an all include in the protection scope of the utility model discloses an equivalent change or simple change that structure, characteristic and principle do. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. An air preheater of an underground flue, comprising: air outlet chamber (7) and flue (9) are gone out including air inlet chamber (2), heat pipe (3), heat conduction fin (4), air passageway (5), air inlet chamber (2) and air are gone out air outlet chamber (7) and are passed through air passageway (5) intercommunication, flue (9) set up on air inlet chamber (2) and air outlet chamber (7), install in flue (9) heat pipe (3), install in heat pipe (3) heat conduction fin (4).
2. An air preheater for an underground flue as claimed in claim 1, wherein: the air inlet butt joint flange (1) and the air outlet butt joint flange (8) are arranged on the air inlet chamber (2) and the air outlet chamber (7) respectively.
3. An air preheater for an underground flue as claimed in claim 1, wherein: the air inlet chamber (2) and the air outlet chamber (7) are both provided with lifting lugs (6).
4. An air preheater for an underground flue as claimed in claim 1, wherein: the number of the heat conduction pipes (3) is multiple, and the adjacent two groups of heat conduction pipes (3) are arranged in a staggered mode.
5. An air preheater for an underground flue as claimed in claim 1, wherein: the heat conducting fins (4) are arranged in a twist structure.
6. An air preheater for an underground flue as claimed in claim 1, wherein: the air channel (5) is arranged below the flue (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120604573.0U CN218154310U (en) | 2021-03-25 | 2021-03-25 | Air preheater of underground flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120604573.0U CN218154310U (en) | 2021-03-25 | 2021-03-25 | Air preheater of underground flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218154310U true CN218154310U (en) | 2022-12-27 |
Family
ID=84548520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120604573.0U Active CN218154310U (en) | 2021-03-25 | 2021-03-25 | Air preheater of underground flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218154310U (en) |
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2021
- 2021-03-25 CN CN202120604573.0U patent/CN218154310U/en active Active
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