CN216838121U - Cooling cover for steel coil annealing furnace with waste heat recovery function - Google Patents
Cooling cover for steel coil annealing furnace with waste heat recovery function Download PDFInfo
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- CN216838121U CN216838121U CN202220462294.XU CN202220462294U CN216838121U CN 216838121 U CN216838121 U CN 216838121U CN 202220462294 U CN202220462294 U CN 202220462294U CN 216838121 U CN216838121 U CN 216838121U
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- heat exchanger
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Abstract
The utility model relates to a coil of strip annealing furnace cooling jacket for stove with waste heat recovery function, its characterized in that: comprises a cover body, a fan, a heat exchanger, a finned tube and a spray pipe; the fan and the heat exchanger are arranged on the outer side of the cover body; one end of the heat exchanger is communicated with the interior of the cover body, and the other end of the heat exchanger is communicated with the fan; the finned tubes are provided with a plurality of groups and are distributed on the inner wall of the cover body; the spray pipe is arranged at the top end inside the cover body; a plurality of groups of heat exchange pipes are distributed in the heat exchanger; one side of the cover body is also connected with a water inlet pipe and a water return pipe. The utility model uses the fan to extract the hot air with heat in the cooling cover into the heat exchanger to heat the cold water in the heat exchange pipe; the finned tubes distributed on the inner wall of the cooling cover absorb the heat of the annealing furnace to heat the cold water in the finned tubes; not only can dispel the heat to the annealing stove and cool off, can realize waste heat recovery moreover, reduction in production cost.
Description
Technical Field
The utility model relates to a coil of strip annealing furnace is with cooling jacket with waste heat recovery function belongs to annealing furnace cooling jacket technical field.
Background
Annealing is a heat treatment process for metals, which refers to placing the metal in an annealing furnace to be slowly heated to a certain temperature, kept for a sufficient time, and then cooled at a suitable speed. The purpose is to reduce hardness and improve machinability; the residual stress is reduced, the size is stabilized, and the deformation and crack tendency is reduced; refining grains, adjusting the structure and eliminating the structure defects. After the hood-type annealing furnace is heated and insulated (650 ℃) by the heating hood, the heating hood needs to be replaced by the cooling hood to enter a cooling stage, the annealing furnace is cooled by a fan or spray water of the cooling hood, and heat is directly discharged along with the fan or the spray water to cause heat energy loss. Meanwhile, hot water needs to be introduced to raise the temperature in the pickling production process, so that a large amount of heat energy is consumed, and the cost is increased.
Therefore, how to provide the cooling jacket for the steel coil annealing furnace with the waste heat recovery function is the research object of the utility model.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a cooling cover with a waste heat recovery function for a steel coil annealing furnace, which is characterized in that hot air with heat in the cooling cover is pumped into a heat exchanger through a fan to heat cold water in the heat exchanger; the finned tubes distributed on the inner wall of the cooling cover absorb the heat of the annealing furnace to heat the cold water in the finned tubes; not only can dispel the heat to the annealing stove and cool off, can realize waste heat recovery moreover, reduction in production cost.
For solving the prior art problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a coil of strip annealing furnace is with cooling jacket with waste heat recovery function which characterized in that: comprises a cover body, a fan, a heat exchanger, a finned tube and a spray pipe; the fan and the heat exchanger are arranged on the outer side of the cover body; one end of the heat exchanger is communicated with the interior of the cover body, and the other end of the heat exchanger is communicated with the fan; the finned tubes are provided with a plurality of groups and are distributed on the inner wall of the cover body; the spray pipe is arranged at the top end inside the cover body; a plurality of groups of heat exchange pipes are distributed in the heat exchanger; one side of the cover body is also connected with a water inlet pipe and a water return pipe; the water inlet pipe is connected with the water inlet ends of the finned tube and the heat exchange tube; the water return pipe is connected with the water outlet ends of the finned pipe and the heat exchange pipe.
Furthermore, the bottom end of the cover body is provided with a supporting leg and a positioning sleeve.
Furthermore, electric actuators are arranged on two sides of the top end of the cover body.
Furthermore, the fan and the heat exchanger are respectively provided with two groups and are respectively arranged on two sides of the cover body.
Furthermore, one side of the cover body close to the water inlet pipe is connected with a water outlet pipe; the water outlet pipe is connected with the water outlet ends of the finned tube and the heat exchange tube; and a safety valve is arranged on the drain pipe.
The utility model has the advantages that: hot air with heat in the cooling cover is pumped into the heat exchanger through a fan, and cold water in the heat exchanger is heated; the finned tubes distributed on the inner wall of the cooling cover absorb the heat of the annealing furnace to heat the cold water in the finned tubes; not only can dispel the heat to the annealing stove and cool off, can realize waste heat recovery moreover, reduction in production cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is a cross-sectional view of the present invention at C-C.
Fig. 4 is an internal structure view of the heat exchanger of the present invention.
Wherein: the device comprises a cover body 1, a fan 2, a heat exchanger 3, a finned tube 4, a spray pipe 5, a heat exchange pipe 6, a water inlet pipe 7, a water return pipe 8, supporting legs 9, a positioning sleeve 10, an electric actuator 11, a water discharge pipe 12 and a safety valve 13.
Detailed Description
In order to make the technical solution of the present invention more understandable to those skilled in the art, the present invention is further analyzed with reference to fig. 1-4.
As shown in fig. 1 to 4, a cooling jacket for a steel coil annealing furnace with a waste heat recovery function is characterized in that: comprises a cover body 1, a fan 2, a heat exchanger 3, a finned tube 4 and a spray pipe 5; the fan 2 and the heat exchanger 3 are arranged on the outer side of the cover body 1; one end of the heat exchanger 3 is communicated with the interior of the cover body 1, the other end of the heat exchanger is communicated with the fan 2, the fan 2 extracts high-temperature air generated by the annealing furnace in the cover body 1 into the heat exchanger 3, and heat of the high-temperature air is transferred to cooling water in the heat exchange tube 6; the finned tubes 4 are provided with a plurality of groups and distributed on the inner wall of the hood body 1, and high-temperature air generated by the annealing furnace in the hood body 1 is in contact with the finned tubes 4 to transfer heat to cooling water in the finned tubes 4; the spray pipe 5 is arranged at the top end of the interior of the cover body 1, and the spray pipe 5 is connected with external cooling water and used for performing spray cooling on the annealing furnace in the cover body 1; a plurality of groups of heat exchange pipes 6 are distributed in the heat exchanger 3; a water inlet pipe 7 and a water return pipe 8 are connected to one side of the cover body 1; the water inlet pipe 7 is connected with the water inlet ends of the finned tube 4 and the heat exchange tube 6 and is used for providing cold water to the finned tube 4 and the heat exchange tube 6; the water return pipe 8 is connected with the water outlet ends of the finned pipe 4 and the heat exchange pipe 6 and is used for conveying hot water in the finned pipe 4 and the heat exchange pipe 6 to an external heat storage water tank.
In this embodiment, the bottom end of the enclosure 1 is preferably provided with a support leg 9 and a positioning sleeve 10, and the positioning sleeve 10 is used for positioning when the enclosure 1 is installed on the annealing furnace.
In this embodiment, preferably, the electric actuators 11 are arranged on two sides of the top end of the cover body 1, and when the cooling speed of the fan 2 and the finned tube 4 is not enough to meet the production requirement according to the cooling speed set by the actual production requirement, the electric actuators 11 are opened to directly discharge part of heat generated by the annealing furnace from the top end of the cover body 1, so as to ensure the cooling speed of the annealing furnace.
In this embodiment, preferably, two sets of the fans 2 and the heat exchangers 3 are respectively disposed on two sides of the cover body 1.
In this embodiment, preferably, a drain pipe 12 is connected to one side of the cover body 1 close to the water inlet pipe 7; the water outlet pipe 12 is connected with the water outlet ends of the finned tube 4 and the heat exchange tube 6; the drain pipe 12 is provided with a safety valve 13, the drain pipe 12 is in a normally closed state, and when the water pressure in the finned tube 4 and the heat exchange tube 6 is too high, the installation valve 13 is manually opened to drain a part of water in the finned tube 4 and the heat exchange tube 6, so that the water pressure is kept stable.
The utility model discloses during the use: the cover body 1 of the cooling cover is hung and buckled on the annealing furnace, so that the cover body 1 surrounds the periphery of the annealing furnace, cooling water enters the finned tube 4 and the heat exchange tube 6 from the water inlet tube 7, the fan 2 extracts high-temperature air generated outside the annealing furnace into the heat exchanger 3, the high-temperature air is contacted with the heat exchange tube 6, the cooling water in the heat exchange tube 6 is heated, and air cooling heat dissipation is carried out on the annealing furnace; the finned tube 4 is directly contacted with high-temperature air generated by the annealing furnace to heat cooling water in the finned tube 4; cooling water in the finned tube 4 and the heat exchange tube 6 is heated and then is conveyed into a heat storage water tank through a water return pipe 8 to be used for heating an acid tank through a graphite heat exchanger; when the temperature of the annealing furnace is cooled to a certain temperature (about 300 ℃), closing a water valve of the water inlet pipe 7 and stopping cooling the finned tube 4 and the heat exchange tube 6; and opening the spray pipe 5, and directly carrying out spray cooling on the annealing furnace through the spray pipe 5.
The technical solutions provided by the present application are introduced in detail, and the principles and embodiments of the present application are explained herein by applying embodiments, and the descriptions of the embodiments are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (5)
1. The utility model provides a coil of strip annealing furnace is with cooling jacket with waste heat recovery function which characterized in that: comprises a cover body, a fan, a heat exchanger, a finned tube and a spray pipe; the fan and the heat exchanger are arranged on the outer side of the cover body; one end of the heat exchanger is communicated with the interior of the cover body, and the other end of the heat exchanger is communicated with the fan; the finned tubes are provided with a plurality of groups and are distributed on the inner wall of the cover body; the spray pipe is arranged at the top end inside the cover body; a plurality of groups of heat exchange pipes are distributed in the heat exchanger; one side of the cover body is also connected with a water inlet pipe and a water return pipe; the water inlet pipe is connected with the water inlet ends of the finned tube and the heat exchange tube; the water return pipe is connected with the water outlet ends of the finned pipe and the heat exchange pipe.
2. The cooling cover with the waste heat recovery function for the steel coil annealing furnace according to claim 1, is characterized in that: the bottom of the cover body is provided with a supporting leg and a positioning sleeve.
3. The cooling cover with the waste heat recovery function for the steel coil annealing furnace according to claim 1, is characterized in that: and electric actuators are arranged on two sides of the top end of the cover body.
4. The cooling cover with the waste heat recovery function for the steel coil annealing furnace according to claim 1, is characterized in that: the fan and the heat exchanger are respectively provided with two groups and are respectively arranged at two sides of the cover body.
5. The cooling cover with the waste heat recovery function for the steel coil annealing furnace according to claim 1, is characterized in that: one side of the cover body close to the water inlet pipe is connected with a water outlet pipe; the water outlet pipe is connected with the water outlet ends of the finned tube and the heat exchange tube; and a safety valve is arranged on the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220462294.XU CN216838121U (en) | 2022-03-03 | 2022-03-03 | Cooling cover for steel coil annealing furnace with waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220462294.XU CN216838121U (en) | 2022-03-03 | 2022-03-03 | Cooling cover for steel coil annealing furnace with waste heat recovery function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216838121U true CN216838121U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220462294.XU Active CN216838121U (en) | 2022-03-03 | 2022-03-03 | Cooling cover for steel coil annealing furnace with waste heat recovery function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216838121U (en) |
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2022
- 2022-03-03 CN CN202220462294.XU patent/CN216838121U/en active Active
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