CN211651259U - Heating furnace flue gas waste heat recovery device - Google Patents
Heating furnace flue gas waste heat recovery device Download PDFInfo
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- CN211651259U CN211651259U CN201922320909.6U CN201922320909U CN211651259U CN 211651259 U CN211651259 U CN 211651259U CN 201922320909 U CN201922320909 U CN 201922320909U CN 211651259 U CN211651259 U CN 211651259U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a heating furnace flue gas waste heat recovery device in waste heat recovery technical field, including waste heat recovery device, water supply installation and water consuming device, waste heat recovery device cup joints on smoke exhaust flue, and waste heat recovery device includes the water storage chamber, is equipped with water inlet and delivery port on the water storage chamber, the water inlet links to each other with water supply installation, and the delivery port links to each other with the water consuming device, be equipped with circulating pipe between water supply installation and the water consuming device. The utility model has the advantages that: the waste heat recovery device is sleeved on the smoke exhaust flue, and the solution is heated to absorb heat so as to reduce the temperature of the smoke, so that the heat absorption and cooling effects are better compared with the air; the solution is heated to absorb heat so as to reduce the temperature of the flue gas, so that the heat utilization efficiency is improved and the heat loss during secondary heat exchange is reduced compared with the method for heating hot water and reheating the solution by a hot water heat exchanger; the process of the hot water amount of the strip steel requires that the temperature of the solution is in a constant temperature state, and the solution is heated by the waste heat recovery device, so that the fuel or electric energy consumption is reduced when the solution is heated.
Description
Technical Field
The utility model relates to a waste heat recovery technical field especially relates to a heating furnace flue gas waste heat recovery device.
Background
The heat treatment process of the strip steel comprises five processes of alkali spray washing, alkali brushing, electrolytic bath, squeezing, water brushing, water spray washing and clean water spray washing, wherein the temperature of each solution of the alkali spray washing, the alkali brushing, the electrolytic bath, the water brushing and the water spray washing is required to be 30 ℃, 43 ℃, 45 ℃ and 50 ℃. Wherein the heating process is carried out in a heating furnace, the strip steel heat treatment process is carried out in a washing tank, and 5 pond liquids need to be heated because the solution temperatures are different in each process.
The heating furnace flue gas temperature is high, and waste heat utilization is mainly for the first use at present, heats water through installing the heat exchanger on melting furnace flue, then heats 5 kinds of solutions with hot water, and the heat utilization efficiency is lower after the secondary heat transfer, and the heating effect is not obvious.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of low utilization rate of the existing waste heat recovery, the utility model aims to solve the technical problems that: the heating furnace flue gas waste heat recovery device has good heating effect and is energy-saving.
The utility model provides a technical scheme that its technical problem adopted is:
heating furnace flue gas waste heat recovery device, including waste heat recovery device, water supply installation and water consuming device, waste heat recovery device cup joints on the flue of discharging fume, and waste heat recovery device includes the water storage chamber, is equipped with water inlet and delivery port on the water storage chamber, the water inlet links to each other with water supply installation, and the delivery port links to each other with water consuming device, be equipped with circulating pipe between water supply installation and the water consuming device.
Furthermore, the water outlets of the waste heat recovery device comprise a plurality of spray heads which are respectively communicated with a plurality of different solution tanks.
Furthermore, the water supply device comprises a plurality of solution circulating pools corresponding to the solution tanks and water pumps, and the plurality of water pumps collect the solutions in the solution circulating pools and then send the solutions to the water inlet of the waste heat recovery device.
Furthermore, one end of the circulating water pipe is connected to the bottom of the solution tank, and the other end of the circulating water pipe is communicated with the corresponding solution circulating pool.
Furthermore, each solution circulating pool is provided with two water pumps which are respectively used as a main water pump and a standby water pump.
The utility model has the advantages that:
1. the waste heat recovery device is sleeved on the smoke exhaust flue, the solution is heated to absorb heat to reduce the temperature of the smoke, the effect of absorbing heat and reducing the temperature is better compared with that of air, and the temperature of the smoke can be reduced to about 100 ℃;
2. the solution is heated to absorb heat so as to reduce the temperature of the flue gas, so that the heat utilization efficiency is improved and the heat loss during secondary heat exchange is reduced compared with the method for heating hot water and reheating the solution by a hot water heat exchanger;
3. the working procedure of hot water quantity of strip steel requires that the temperature of 4 solutions of alkali scrubbing, electrolytic bath, water scrubbing and water spraying is in a constant temperature state, and the solution can be heated by the waste heat recovery device under the condition of reducing the temperature of flue gas, so that the fuel or electric energy consumption during solution heating is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The mark in the figure is 1-waste heat recovery device, 2-water supply device, 3-water consumption device, 4-smoke exhaust flue, 5-circulating water pipe, 11-water storage cavity, 12-water inlet, 13-water outlet, 21-solution circulating pool, 22-water pump and 31-solution tank.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a waste heat recovery device 1, water supply installation 2 and water installation 3, waste heat recovery device 1 cup joints on smoke exhaust flue 4, and waste heat recovery device 1 includes water storage chamber 11, is equipped with water inlet 12 and delivery port 13 on the water storage chamber 11, water inlet 12 links to each other with water supply installation 2, and delivery port 13 links to each other with water installation 3, be equipped with circulating pipe 5 between water supply installation 2 and the water installation 3.
The utility model discloses a working process is: the waste heat recovery device 1, the water supply device 2 and the water using device 3 form a circulation loop, the water supply device 2 sends the collected solution into the waste heat recovery device 1, the waste heat recovery device 1 makes the temperature of the solution rise after exchanging heat with the smoke exhaust flue 4, then the solution is sent to the water using device 3 for alkali scrubbing, electrolytic bath, water scrubbing, water spray washing and other processes, and finally the washed solution is sent back to the water supply device 2 through the circulating water pipe 5. According to practical verification, the waste heat recovery device 1 can reduce the temperature of the flue gas to about 100 ℃, the solution can be heated by 1 ℃ through one circulation, and heating energy can be greatly saved through the cooperation with the heating device and the constant temperature device.
In order to avoid interference between the cleaning processes, the water outlet 13 of the waste heat recovery device 1 includes a plurality of nozzles respectively leading to a plurality of different solution tanks 31 of the water-consuming equipment 3. And a heating device and a constant temperature device are arranged on the path of each water delivery pipe to ensure that water reaching each spray head meets the use requirement.
The water supply device 2 comprises a plurality of solution circulation pools 21 corresponding to the solution tanks 31 and water pumps 22, and the plurality of water pumps 22 collect the solutions in the solution circulation pools 21 and send the collected solutions to the water inlet 12 of the waste heat recovery device 1. Since the water consumption of each process is different and is separated by a certain distance, a plurality of solution circulation tanks 21 are provided, and each solution circulation tank 21 is provided with a water pump 22.
In order to collect the washing liquid in the solution tank 31, one end of the water circulation pipe 5 is connected to the bottom of the solution tank 31, and the other end of the water circulation pipe leads to the corresponding solution circulation tank 21. In order to avoid the water pump 22 from failing to influence the smooth operation of the production line, each solution circulating tank 21 is provided with two water pumps 22 which are respectively used as a main water pump and a standby water pump, and the standby water pumps are used alternatively when the main water pump is damaged, so that the stability of water supply can be ensured.
The utility model discloses a constitute a circulation circuit with waste heat recovery device, water supply installation and water consuming device three, fully absorbed the waste heat of smoke exhaust pipe, improved heat utilization rate, fuel or power consumption when having reduced the solution heating have fine practicality and economic social value.
Claims (5)
1. Heating furnace flue gas waste heat recovery device, characterized by: including waste heat recovery device (1), water supply installation (2) and water consumption device (3), waste heat recovery device (1) cup joints on smoke exhaust flue (4), and waste heat recovery device (1) includes water storage chamber (11), is equipped with water inlet (12) and delivery port (13) on water storage chamber (11), water inlet (12) link to each other with water supply installation (2), and delivery port (13) link to each other with water consumption device (3), be equipped with circulating pipe (5) between water supply installation (2) and water consumption device (3).
2. The heating furnace flue gas waste heat recovery device of claim 1, characterized in that: the water outlet (13) of the waste heat recovery device (1) comprises a plurality of spray heads which are respectively communicated with a plurality of different solution tanks (31) of the water using device (3).
3. The heating furnace flue gas waste heat recovery device of claim 2, characterized in that: the water supply device (2) comprises a plurality of solution circulating pools (21) corresponding to the solution tanks (31) and water pumps (22), and the solutions in the solution circulating pools (21) are collected by the water pumps (22) and then are sent to the water inlet (12) of the waste heat recovery device (1).
4. The heating furnace flue gas waste heat recovery device of claim 3, characterized in that: one end of the circulating water pipe (5) is connected to the bottom of the solution tank (31), and the other end of the circulating water pipe is communicated with the corresponding solution circulating pool (21).
5. The heating furnace flue gas waste heat recovery device of claim 3, characterized in that: each solution circulating pool (21) is provided with two water pumps (22) which are respectively used as a main water pump and a standby water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320909.6U CN211651259U (en) | 2019-12-20 | 2019-12-20 | Heating furnace flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320909.6U CN211651259U (en) | 2019-12-20 | 2019-12-20 | Heating furnace flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651259U true CN211651259U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922320909.6U Active CN211651259U (en) | 2019-12-20 | 2019-12-20 | Heating furnace flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651259U (en) |
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2019
- 2019-12-20 CN CN201922320909.6U patent/CN211651259U/en active Active
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