CN216115451U - Steel rolling finished product waste heat power generation device - Google Patents
Steel rolling finished product waste heat power generation device Download PDFInfo
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- CN216115451U CN216115451U CN202122047028.9U CN202122047028U CN216115451U CN 216115451 U CN216115451 U CN 216115451U CN 202122047028 U CN202122047028 U CN 202122047028U CN 216115451 U CN216115451 U CN 216115451U
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Abstract
The utility model provides a steel rolling finished product waste heat power generation device, which comprises a recovery system and a power generation system; the recovery systems are in a plurality of groups, and each group of recovery systems comprises a heat collection cover, a hot air collection branch pipe, a hot air collection main pipe and an induced draft fan; the heat collecting covers are arranged above the cooling bed and are arranged along the width direction of the cooling bed, the top of each heat collecting cover is communicated to a hot air collecting main pipe, the hot air collecting main pipe is provided with an induced draft fan, and an air outlet of the induced draft fan is connected to other heat utilization units of a factory; the heat collecting cover is characterized in that a plurality of circles of heat exchange coil pipes are spirally arranged inside the heat collecting cover along the shape of the cover body, and the power generation system comprises a cold end heat exchanger, a hot end heat exchanger and a power generation assembly. The utility model fully recovers the heat emitted by the high-temperature rolled steel finished product, generates electricity through a power generation system by producing hot water through the preheater and the heat exchange coil pipe, and provides three resources of hot air, hot water and electricity for factories, thereby realizing full utilization of the waste heat of the rolled steel finished product and saving energy.
Description
Technical Field
The utility model relates to a steel rolling finished product waste heat power generation device, and belongs to the technical field of steel rolling.
Background
Long steel products, such as H-section steel, angle steel, ribbed screw steel, and round steel, are mostly produced by billet rolling. Heating the steel billet to 1150-1250 ℃ in a heating furnace before rolling to ensure that the steel billet is rolled in an austenite region, wherein the temperature is 20-30 ℃ above the A3 point; and sending the rolled steel into a stepping cooling bed for cooling.
The stepping cooling bed generally comprises a cooling bed inlet accelerating roller way, a cooling bed outlet accelerating roller way, a static beam, a movable beam, a foundation base and a transmission motor. The steel rolling finished product is firstly conveyed to an accelerated roller way of a cold bed, then is transversely conveyed to a static beam, a movable beam is driven by a transmission motor to perform reciprocating translation, the steel rolling finished product is gradually transferred to an outlet side, and the cooling of the steel rolling finished product is realized in the continuous transfer process; and outputting the cooled steel rolling finished product through an accelerated roller way of a cooling bed. Generally, the temperature of the rolled steel finished product on the upper cooling bed is about 900 ℃, and the temperature of the rolled steel finished product on the lower cooling bed is less than 80 ℃, that is, each rolled steel finished product needs to be cooled by about 800 ℃ on the stepping cooling bed, and great heat can be released.
At present, a factory does not generally recover waste heat released by a rolled steel finished product, but freely distributes the waste heat to cool the rolled steel finished product. Like this, not only a large amount of heat are wasted, and the heat gives off to in the workshop factory building moreover for the workshop temperature is higher, is unfavorable for the workman to stay for a long time, also does not benefit to the long-time operation of equipment, also can be because the factory building temperature is higher and prolong the off-the-shelf cooling time of steel rolling.
Therefore, how to solve the existing problems and recover the waste heat of the rolled steel finished product becomes a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model aims to provide a steel rolling finished product waste heat power generation device, which recovers the waste heat of a steel rolling finished product and produces hot water and electric energy as byproducts.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a steel rolling finished product waste heat power generation device comprises a recovery system and a power generation system; the recovery systems are a plurality of groups which are uniformly arranged along the length direction of the cooling bed, and each group of recovery systems comprises a heat collecting cover, a hot air collecting branch pipe, a hot air collecting main pipe and an induced draft fan; the heat collecting covers are arranged above the cooling bed and are arranged along the width direction of the cooling bed, the top of each heat collecting cover is communicated to a hot air collecting main pipe through a hot air collecting branch pipe, an induced draft fan is arranged on the hot air collecting main pipe, and an air outlet of the induced draft fan is connected to other heat using units of a factory;
the heat collection cover is internally provided with a plurality of circles of heat exchange coil pipes in a spiral mode along the shape of the cover body, the inlet ends of the heat exchange coil pipes are arranged at the top of the heat collection cover, the outlet ends of the heat exchange coil pipes are arranged at the bottom of the heat collection cover, and the outlet ends of the heat exchange coil pipes are communicated to other water using units through pipelines; the hot air collecting main pipe positioned at the front end of the induced draft fan is also provided with a preheater, a tube side inlet of the preheater is connected with a cold water pipe, and a tube side outlet of the preheater is connected to an inlet end of the heat exchange coil pipe through a pipeline;
the power generation system comprises a cold end heat exchanger, a hot end heat exchanger and a power generation assembly; the cold end heat exchanger and the hot end heat exchanger are arranged oppositely, and the power generation assembly is arranged between the cold end heat exchanger and the hot end heat exchanger; the inlet end of the cold end heat exchanger is connected with a cold water pipe, and the outlet end of the cold end heat exchanger is connected with a tube pass inlet of the preheater; the inlet end of the hot end heat exchanger is connected with the outlet end of the heat exchange coil, and the outlet end of the hot end heat exchanger is connected with other water units of a factory.
The utility model is further improved in that: the top of the heat collecting cover is provided with a temperature measuring probe, each hot air collecting branch pipe is provided with an air volume adjusting valve, and the temperature measuring probe and the air volume adjusting valve are connected with the PLC in a control mode.
The utility model is further improved in that: and a dust remover is also arranged on the hot air collecting header pipe between the preheater and the induced draft fan.
The utility model is further improved in that: and the arrangement density of the heat collection cover is gradually reduced along the direction from the cold bed acceleration roller way to the cold bed acceleration roller way.
The utility model is further improved in that: the recovery system also includes a support assembly for securing the hot air collection header.
The utility model is further improved in that: the power generation assembly comprises a plurality of N-type semiconductor power generation chips and P-type semiconductor power generation chips which are arranged side by side, and the N-type semiconductor power generation chips and the P-type semiconductor power generation chips are alternately arranged; and the adjacent N-type semiconductor power generation chip and the adjacent P-type semiconductor power generation chip are connected end to end through the conducting strips.
The utility model is further improved in that: a cold end insulation heat transfer layer is arranged between the heat exchange side of the cold end heat exchanger and the power generation assembly, and a hot end insulation heat transfer layer is arranged between the heat exchange side of the hot end heat exchanger and the power generation assembly.
The utility model is further improved in that: the cold end heat exchanger and the hot end heat exchanger are both cavities with rectangular cross sections, and a plurality of rows of heat conducting fins are arranged on the heat exchange sides of the cold end heat exchanger and the hot end heat exchanger.
Due to the adoption of the technical scheme, the utility model has the technical progress that:
the utility model provides a steel rolling finished product waste heat power generation device which fully recovers heat dissipated by a high-temperature steel rolling finished product, generates power through a power generation system by producing hot water through a preheater and a heat exchange coil pipe, and provides three resources of hot air, hot water and electricity for a factory, thereby fully utilizing the steel rolling finished product waste heat and saving energy. Because the heat of the rolled steel is pumped away and recovered, the temperature in a workshop of the cold bed workshop is greatly reduced, and the working environment of workers and the operating environment of equipment facilities are obviously improved.
In the utility model, cold water firstly passes through the preheater and then enters the heat exchange coil pipe from the top of the heat collection cover, and is discharged from an outlet at the bottom of the heat collection cover after rotating and flowing; in the heat exchange process, the temperature of hot air contacted with cold water is gradually increased, so that the cold water can fully receive heat exchange, the water temperature is gradually increased, the output hot water can reach higher temperature, and meanwhile, the phenomenon that the water in the pipe is locally overheated and gasified can be avoided, and the safety is high.
According to the utility model, the arrangement of the heat collecting covers is set according to the temperature of hot air, the temperature of the hot air is higher, the arrangement of the heat collecting covers is denser, and the arrangement density of the heat collecting covers is gradually reduced along with the reduction of the temperature of the hot air; meanwhile, the utility model is also provided with a temperature measuring probe and an air volume adjusting valve, and the opening degree of the air volume adjusting valve is adjusted in real time according to the temperature of hot air under the control of the PLC control system. Through the above arrangement, the recycling hot air and the auxiliary hot water can be ensured to be output outwards at a stable temperature.
The cold water can fully absorb the heat of the hot air, so that the temperature of the hot water obtained after heat exchange is higher; the large temperature difference between the cold water and the hot water can meet the requirement of temperature difference power generation. The utility model adopts the power generation system to realize temperature difference power generation, and improves the energy utilization rate to the maximum extent.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic diagram of the working principle of the present invention;
FIG. 4 is a schematic diagram of a power generation system;
FIG. 5 is a schematic cross-sectional view of a cold side/hot side insulated heat transfer layer;
in the figure, 1-a heat collecting cover, 2-a hot air collecting branch pipe, 3-a hot air collecting main pipe, 4-an induced draft fan, 5-a heat exchange coil pipe, 6-a preheater, 7-a dust remover, 8-a water pump, 9-a supporting upright post, 10-a supporting cross beam, 11-a pipe hoop, 12-a cooling bed accelerating roller way, 13-a cooling bed accelerating roller way, 14-a static beam, 15-a movable beam, 16-a base seat, 17-a transmission motor, 18-a pit, 19-a cover plate, 20-H-shaped steel, 21-a cold water pipe, 22-an air quantity adjusting valve, 23-a cold end heat exchanger, 24-a hot end heat exchanger, 25-N type semiconductor power generating chips, 26-P type semiconductor power generating chips, 27-a conducting plate and 28-a cold end insulating heat transfer layer, 29-hot end insulating heat transfer layer, 30-heat conducting fin, 31-DC/DC converter.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings.
A steel rolling finished product waste heat power generation device is shown in figures 1-5 and comprises a recovery system and a power generation system.
The recovery systems are in a plurality of groups and are respectively and uniformly arranged along the length direction of the cooling bed. The recovery system specifically comprises a heat collecting cover 1, hot air collecting branch pipes 2, a hot air collecting main pipe 3 and an induced draft fan 4. The heat collecting cover 1 is a plurality of and is arranged above the cooling bed and along the width direction of the cooling bed, the top of each heat collecting cover 1 is communicated to a hot air collecting main pipe 3 through a hot air collecting branch pipe 2, an induced draft fan 4 is arranged on the hot air collecting main pipe 3, and an air outlet of the induced draft fan 4 is connected to other heat using units of a factory. The heat of the steel rolling finished product is dissipated to the ambient air, under the suction action of the draught fan 4, hot air enters the hot air collecting header pipe 3 through the heat collecting cover 1 and is sent to other heat using units for use, for example, the hot air is sent to a raw material workshop for drying wet iron front raw material coal powder, or the hot air is sent to a heating furnace for being used as combustion air, or the hot air is sent to a preheating unit for being used as preheating air, or the hot air is sent to areas needing heating such as a steel rolling water pump 8 room in winter for being used as heating air, and the like.
The temperature of the rolled steel finished product is gradually cooled on the cooling bed, so the arrangement range of the heat collecting cover 1 is arranged on one side of the cooling bed acceleration roller way 12 and within 1212m of the cooling bed acceleration roller way, and the rolled steel temperature is higher and the hot air quantity is large in the range.
In consideration of better absorbing hot air, the arrangement density of the heat collecting covers 1 is gradually reduced along the direction from the cold bed acceleration roller way 12 to the cold bed acceleration roller way 13, namely, more heat collecting covers 1 are arranged at the steel rolling inlet ends with high hot air temperature and large hot air quantity, and less heat collecting covers 1 are arranged at the parts with low hot air temperature and small hot air quantity.
The heat collecting cover 1 is a cone gradually contracted from bottom to top so as to facilitate the collection of hot air.
The top of each heat collecting cover 1 is provided with a temperature measuring probe, each hot air collecting branch pipe 2 is provided with an air volume adjusting valve 22, the temperature measuring probes and the air volume adjusting valves 22 are connected with a PLC control system in a control mode, and each temperature measuring probe and each air volume adjusting valve 22 are controlled independently. The temperature measuring probe monitors the temperature of the hot air collected by the heat collecting cover 1 in real time and automatically transmits the temperature to the PLC control system, the PLC control system sends an instruction to adjust the opening degree of the air volume adjusting valve 22 according to the temperature of the hot air, and when the temperature of the hot air is high, the opening degree of the air volume adjusting valve 22 is increased and the hot air absorption amount is increased; when the temperature of the hot air is low, the opening degree of the air volume adjusting valve 22 is reduced, and the absorption volume of the hot air is reduced, so that the temperature of the hot air entering the hot air collecting main pipe 3 is kept stable; when the temperature of the hot air is lower than a certain degree or the steel rolling finished product is not on the cooling bed, the air quantity regulating valve 22 is completely closed.
In order to fully utilize the waste heat of the rolled steel finished product, the utility model is also provided with a heat exchange coil 5 and a preheater 6, and hot water is produced as a byproduct through heat exchange.
Particularly, the heat exchange coil 5 is arranged inside the heat collection cover 1 and is spirally arranged from top to bottom along the shape of the cover body, and the inlet end of the top of the heat exchange coil 5 and the outlet end of the bottom of the heat exchange coil 5 penetrate through the wall of the cover body and then are connected with a pipeline. A certain gap is formed between the tube body of the heat exchange coil 5 and the inner wall of the cover body of the heat collection cover 1, and the gap is generally not smaller than 5cm, so that hot air can flow around the tube body and fully contact with the heat exchange tube.
One or two extending pipe clamps are arranged in the heat collecting cover 1 to reinforce the middle of the heat exchange coil pipe 5.
The preheater 6 is arranged on a hot air collecting main pipe 3 at the front end of the induced draft fan 4, hot air enters the shell pass of the preheater 6 through the hot air collecting main pipe 3, and a shell pass outlet of the preheater 6 is connected with the induced draft fan 4; the tube side inlet of the preheater 6 is connected with the cold water pipe 21, and the tube side outlet of the preheater 6 is connected with the inlet end of the heat exchange coil 5 through a pipeline. A water pump 8 is provided to the cold water pipe 21.
Under the drive of the water pump 8, cold water from the cold water pipe 21 firstly enters the preheater 6 and contacts with hot air in the hot air collecting header pipe 3 to carry out partition wall heat exchange; the preheated water then enters the top inlet of the heat exchange coil 5, flows in the heat collection cover 1 along with the heat exchange coil 5 in a spiral mode, is gradually in full contact with hot air with higher temperature, gradually rises in temperature, and is sent to other water using units through pipelines.
The preheater 6 is a tube heat exchanger or a coil heat exchanger, so that the heat exchange efficiency is high, and the use and the maintenance are convenient.
The recovery system also comprises a support assembly for fixing the hot air collection mains 3. The support assembly comprises a support upright 9 and a support beam 10. The bottom of the supporting upright post 9 is fixed through bolts embedded underground, so that the stability is high; a supporting beam 10 transversely extends out of the top of the supporting upright 9, and the supporting beam 10 is fixedly connected with the supporting upright 9. The hot air collecting main pipe 3 is fixed on the supporting beam 10 through a pipe hoop 11, and a plurality of hot air collecting branch pipes 2 are arranged below the hot air collecting main pipe 3 in a branching mode.
The supporting upright posts 9 and the supporting cross beams 10 are formed by welding H-shaped steel made of Q355 materials, and are high in strength and not prone to deformation. The heat collecting cover 1, the hot air collecting branch pipes 2 and the hot air collecting main pipe 3 are made of galvanized plates with the thickness of 1.2mm, the dead weight is light, and the load of the supporting beam 10 is reduced.
And the hot air collecting main pipe 3 positioned between the preheater 6 and the induced draft fan 4 is also provided with a dust remover 7, and the dust remover 7 can select a common bag-type dust remover 7 or a common plate-and-frame dust remover 7.
Preferably, the draught fan 4 is arranged in the pit 18, and a hot air output pipeline connected with an outlet of the draught fan 4 is buried underground, so that the space above the ground is not occupied, and the heat preservation effect can be improved.
The top of the pit 18 is provided with a cover plate 19 which can be opened and closed so as to maintain and overhaul the induced draft fan 4.
The power generation system comprises a cold-end heat exchanger 23, a hot-end heat exchanger 24 and a power generation assembly. The cold-end heat exchanger 23 and the hot-end heat exchanger 24 are arranged oppositely, and the power generation assembly is arranged between the cold-end heat exchanger 23 and the hot-end heat exchanger 24.
The inlet end of the cold-end heat exchanger 23 is connected with the cold water pipe 21, and the outlet end of the cold-end heat exchanger 23 is connected with the tube pass inlet of the preheater 6; the inlet end of the hot-end heat exchanger 24 is connected with the outlet end of the heat exchange coil 5, and the outlet end of the hot-end heat exchanger 24 is connected with other water units of a factory. Cold water from the cold water pipe 21 enters the cold-end heat exchanger 23, then enters the preheater 6 and the heat exchange coil 5 in sequence for heat exchange and temperature rise, and hot water after heat exchange enters the hot-end heat exchanger 24 and is discharged and then sent to other water using units of a factory.
As shown in fig. 4, the power generation assembly includes a plurality of N-type semiconductor power generation chips and P-type semiconductor power generation chips arranged side by side, and the N-type semiconductor power generation chips and the P-type semiconductor power generation chips are alternately arranged. And a conducting strip 27 is connected between the top of each N-type semiconductor power generation chip and the top of the P-type semiconductor power generation chip positioned at the front end of the N-type semiconductor power generation chip, and between the bottom of each N-type semiconductor power generation chip and the bottom of the P-type semiconductor power generation chip positioned at the rear end of the N-type semiconductor power generation chip, so that the adjacent N-type semiconductor power generation chips and the adjacent P-type semiconductor power generation chips are connected end to end through the conducting strips 27.
The N-type semiconductor power generation chip and the P-type semiconductor power generation chip are preferably Bi-Te semiconductor heating chips.
A cold end insulating heat transfer layer 28 is arranged between the heat exchange side of the cold end heat exchanger 23 and the power generation assembly, a hot end insulating heat transfer layer 29 is arranged between the heat exchange side of the hot end heat exchanger 24 and the power generation assembly, and the cold energy from the cold end heat exchanger 23 and the heat from the hot end heat exchanger 24 are respectively transferred to two ends of the N-type semiconductor power generation chip and the P-type semiconductor power generation chip to form temperature difference. Due to the thermal excitation effect, the electron concentration of the hot end of the N-type semiconductor power generation chip is higher than that of the cold end, the hole concentration of the hot end of the P-type semiconductor power generation chip is higher than that of the cold end, and the electrons and the holes are diffused to the cold end under the driving of the concentration gradient, so that electromotive force is formed. The voltage output by the power generation assembly is transmitted to the power utilization unit or the power storage unit after passing through the DC/DC converter.
The cold end insulating heat transfer layer 28 and the hot end insulating heat transfer layer 29 are heat conduction silicone grease or insulating heat transfer films.
The cold-end heat exchanger 23 and the hot-end heat exchanger 24 are both cavities with rectangular cross sections, the sectional views of the cavities are shown in fig. 5, in order to enhance the heat conduction effect of the cold-end heat exchanger 23 and the hot-end heat exchanger 24, the heat exchange sides of the cold-end heat exchanger 23 and the hot-end heat exchanger 24 are both provided with a plurality of rows of heat conduction fins 30, and the heat conduction fins 30 are arranged along the length direction of the heat exchangers; the heat of the water flowing through the heat exchanger is fully transferred to the cold side/hot side insulated heat transfer layers 28, 29 via the heat conducting fins 30.
The working process of the utility model is as follows:
under the drive of a draught fan, hot air brought by a steel rolling finished product is pumped out by the heat collecting cover, contacts with the heat exchange coil coiled inside the heat collecting cover in the flowing process, performs primary heat exchange, then enters the preheater, performs secondary heat exchange with cold water as a heat medium, and is sent to other heat units of a factory for use after being dedusted and purified by the deduster.
Under the drive of a water pump, cold water firstly flows through a cold-end heat exchanger, then enters a preheater for preheating, then flows into a plurality of heat exchange coil pipes respectively through pipelines, fully absorbs the temperature of hot air, then is heated to obtain hot water with higher temperature, and the hot water flows through a hot-end heat exchanger after being collected and finally is sent to other water using units of a factory for use.
The temperature of cold water is transmitted to a conducting strip close to the cold end through the heat exchange side and the cold end insulation heat transfer layer of the cold end heat exchanger; the temperature of the hot water is transmitted to the conducting sheet close to the hot end through the heat exchange side of the hot end heat exchanger and the hot end insulating heat transfer layer, so that temperature difference and current are formed at two ends of the N-type semiconductor power generation chip and the P-type semiconductor power generation chip, and the current is converted by the DC/DC converter and then is stably output to the electricity utilization unit or the electricity storage unit.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (8)
1. The utility model provides a steel rolling finished product waste heat power generation facility which characterized in that: comprises a recovery system and a power generation system; the recovery systems are uniformly arranged in multiple groups along the length direction of the cooling bed, and each group of recovery systems comprises a heat collection cover (1), hot air collection branch pipes (2), a hot air collection main pipe (3) and an induced draft fan (4); the heat collecting covers (1) are arranged above the cooling bed and are arranged along the width direction of the cooling bed, the top of each heat collecting cover (1) is communicated to a hot air collecting main pipe (3) through a hot air collecting branch pipe (2), an induced draft fan (4) is arranged on the hot air collecting main pipe (3), and an air outlet of the induced draft fan (4) is connected to other heat utilization units of a factory;
a plurality of circles of heat exchange coil pipes (5) are spirally arranged inside the heat collection cover (1) along the shape of the cover body, the inlet ends of the heat exchange coil pipes (5) are arranged at the top of the heat collection cover (1), the outlet ends of the heat exchange coil pipes (5) are arranged at the bottom of the heat collection cover (1), and the outlet ends of the heat exchange coil pipes (5) are communicated to other water using units through pipelines; a preheater (6) is further arranged on the hot air collecting main pipe (3) positioned at the front end of the induced draft fan (4), a tube side inlet of the preheater (6) is communicated with the cold water pipe (21), and a tube side outlet of the preheater (6) is connected to an inlet end of the heat exchange coil pipe (5) through a pipeline;
the power generation system comprises a cold-end heat exchanger (23), a hot-end heat exchanger (24) and a power generation assembly; the cold-end heat exchanger (23) and the hot-end heat exchanger (24) are arranged oppositely, and the power generation assembly is arranged between the cold-end heat exchanger (23) and the hot-end heat exchanger (24); the inlet end of the cold end heat exchanger (23) is connected with a cold water pipe (21), and the outlet end of the cold end heat exchanger (23) is connected with a tube pass inlet of the preheater (6); the inlet end of the hot end heat exchanger (24) is connected with the outlet end of the heat exchange coil (5), and the outlet end of the hot end heat exchanger (24) is connected with other water units of a factory.
2. The steel rolling finished product waste heat power generation device of claim 1, wherein: the heat collecting cover is characterized in that a temperature measuring probe is arranged at the top of the heat collecting cover (1), an air volume adjusting valve (22) is arranged on each hot air collecting branch pipe (2), and the temperature measuring probe and the air volume adjusting valve (22) are in control connection with a PLC.
3. The steel rolling finished product waste heat power generation device of claim 1, wherein: and a dust remover (7) is also arranged on the hot air collecting header pipe (3) and is positioned between the preheater (6) and the induced draft fan (4).
4. The steel rolling finished product waste heat power generation device of claim 1, wherein: along the direction from the cold bed entering acceleration roller way (12) to the cold bed exiting acceleration roller way (13), the arrangement density of the heat collection cover (1) is gradually reduced.
5. The steel rolling finished product waste heat power generation device of claim 1, wherein: the recovery system also comprises a support assembly for fixing the hot air collection header (3).
6. The steel rolling finished product waste heat power generation device of claim 1, wherein: the power generation assembly comprises a plurality of N-type semiconductor power generation chips (25) and P-type semiconductor power generation chips (26) which are arranged side by side, wherein the N-type semiconductor power generation chips (25) and the P-type semiconductor power generation chips (26) are alternately arranged; the adjacent N-type semiconductor power generation chip (25) and the adjacent P-type semiconductor power generation chip (26) are connected end to end through a conducting strip (27).
7. The steel rolling finished product waste heat power generation device of claim 1, wherein: a cold end insulating heat transfer layer (28) is arranged between the heat exchange side of the cold end heat exchanger (23) and the power generation assembly, and a hot end insulating heat transfer layer (29) is arranged between the heat exchange side of the hot end heat exchanger (24) and the power generation assembly.
8. The steel rolling finished product waste heat power generation device of claim 1, wherein: the cold end heat exchanger (23) and the hot end heat exchanger (24) are both cavities with rectangular cross sections, and a plurality of rows of heat conducting fins (30) are arranged on the heat exchange sides of the cold end heat exchanger (23) and the hot end heat exchanger (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122047028.9U CN216115451U (en) | 2021-08-27 | 2021-08-27 | Steel rolling finished product waste heat power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122047028.9U CN216115451U (en) | 2021-08-27 | 2021-08-27 | Steel rolling finished product waste heat power generation device |
Publications (1)
| Publication Number | Publication Date |
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| CN216115451U true CN216115451U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122047028.9U Active CN216115451U (en) | 2021-08-27 | 2021-08-27 | Steel rolling finished product waste heat power generation device |
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| CN (1) | CN216115451U (en) |
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2021
- 2021-08-27 CN CN202122047028.9U patent/CN216115451U/en active Active
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