CN216011797U - Float glass annealing kiln waste heat recovery utilizes device - Google Patents
Float glass annealing kiln waste heat recovery utilizes device Download PDFInfo
- Publication number
- CN216011797U CN216011797U CN202122334476.7U CN202122334476U CN216011797U CN 216011797 U CN216011797 U CN 216011797U CN 202122334476 U CN202122334476 U CN 202122334476U CN 216011797 U CN216011797 U CN 216011797U
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- waste heat
- pipeline
- draught fan
- air
- hot
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- 239000002918 waste heat Substances 0.000 title claims abstract description 94
- 239000005329 float glass Substances 0.000 title claims abstract description 14
- 238000007507 annealing of glass Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 4
- 238000000137 annealing Methods 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a float glass annealing kiln waste heat recovery utilizes device, including hot-blast direct vent pipeline, be connected with the reposition of redundant personnel tee bend on the hot-blast direct vent pipeline, install pressure transmitter, reposition of redundant personnel tee bend one end is connected with non return air valve one, the reposition of redundant personnel tee bend other end is connected with the bypass pipeline, bypass pipeline connects the waste heat draught fan, pressure transmitter, waste heat draught fan insert PLC. The utility model discloses an use on float glass production line annealing kiln for the first time, through setting up non return blast gate one, detect hot-blast straight line pipeline exhaust waste heat wind pressure through the pressure transmitter of installation, the pressure transmitter measured value constitutes closed loop control system with PLC, waste heat draught fan, according to the waste heat wind pressure value automatically regulated waste heat draught fan amount of wind of settlement, under the circumstances that guarantees hot-blast straight line pipeline exhaust waste heat wind pressure and be the pressure of a little, the waste heat amount of wind is retrieved to furthest.
Description
Technical Field
The utility model relates to a waste heat utilization technology field specifically is a float glass annealing kiln waste heat recovery utilizes device.
Background
Float glass manufacturing is divided into three thermal equipment of a melting furnace, a tin bath and an annealing furnace, wherein the annealing furnace is divided into a sealing area and an open area, the temperature of a glass plate at the inlet of the sealing area is about 600 ℃, the temperature of a glass plate at the outlet of the sealing area is about 380 ℃, air pipes are arranged above and below the glass plate in the annealing furnace, cooling air and the glass plate move in a reverse direction, an induced draft fan is arranged at the outlet of the air pipes, and the hot air temperature of the glass plate after heat exchange with the cooling air can reach 210-350 ℃ and is directly discharged outdoors. The total exhaust air volume of the sealing area of the annealing kiln is 7500m3The waste heat power is 405kW, the energy discharged every day is converted into electric energy 9720kWh, the annual electric energy is converted into 354 ten thousand kWh, and the waste is wasted.
Therefore, the utility model provides a device for recovering waste heat of a float glass annealing kiln for the first time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a float glass annealing kiln waste heat recovery utilizes device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a float glass annealing kiln waste heat recovery utilizes's device, includes hot-blast straight-line pipeline, hot-blast straight-line pipe connection has the reposition of redundant personnel tee bend, be connected with non return air valve one and pressure transmitter on the hot-blast straight-line pipeline, the reposition of redundant personnel tee bend is connected with the bypass pipeline, bypass pipeline connection waste heat draught fan, waste heat conveying pipeline is connected to the air outlet of waste heat draught fan, pressure transmitter, waste heat draught fan and PLC signal connection.
Through adopting above-mentioned technical scheme, through setting up non return blast gate one, detect hot-blast direct vent exhaust waste heat wind pressure through the pressure transmitter of installation, the pressure transmitter measured value constitutes closed loop control system with PLC, converter, waste heat draught fan, according to the waste heat wind pressure value automatically regulated waste heat draught fan amount of wind of settlement, under the circumstances that guarantees that hot-blast direct vent pipeline exhaust waste heat wind pressure is the pressure of pressure a little, furthest retrieves the waste heat amount of wind.
Preferably, a temperature sensor is installed on the shunt tee.
By adopting the technical scheme, the temperature sensor can detect the temperature of the hot air in the hot air direct discharging pipeline in real time.
Preferably, the bypass pipeline is connected with a second non-return air valve, the second non-return air valve is connected with a first electric butterfly valve, and the first electric butterfly valve is connected with an inlet of a waste heat induced draft fan.
Through adopting above-mentioned technical scheme, the air current is normally advanced to two assurance non return air valves effectively, prevents that the air current from the hot-blast straight line pipeline that flows back of waste heat draught fan, and electric butterfly valve one is chain with the waste heat draught fan, and normal condition electric butterfly valve one is opened prior to the waste heat draught fan, and the waste heat draught fan low frequency is opened, closes in the waste heat draught fan afterwards, and waste heat draught fan high frequency is shut down, guarantees that the waste heat draught fan opens and stops to reduce and influence annealing kiln technology.
Preferably, the outlet of the waste heat induced draft fan is connected with a second electric butterfly valve, the second electric butterfly valve is connected with a third check air valve, and the third check air valve is connected with a waste heat conveying pipeline.
Through adopting above-mentioned technical scheme, electric butterfly valve two is chain with the waste heat fan, and normal condition electric butterfly valve two is opened prior to the waste heat draught fan, and the waste heat draught fan low frequency is opened, closes in the waste heat draught fan afterwards, and the waste heat draught fan high frequency is shut down, and the air current is normally moved ahead to three assurance air check blast valves effectively, prevents that the air current from the waste heat pipeline backward flow to the waste heat draught fan.
Drawings
Fig. 1 is a schematic view of the present invention;
in the figure: 1. a first annealing fan; 2. a second annealing fan; 3. annealing the hot air pipeline; 4. a hot air direct discharge pipeline; 5. a shunt tee joint; 6. a temperature sensor; 7. a pressure transmitter; 8. a first air check valve; 9. an outdoor hood; 10. a bypass line; 11. a second non-return air valve; 12. a first electric butterfly valve; 13. a residual heat draught fan; 14. a waste heat conveying pipeline; 15. a second electric butterfly valve; 16. and a third air check valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a device for recycling waste heat of a float glass annealing kiln comprises a hot air direct discharging pipeline 4, hot air in an annealing hot air pipeline 3 is discharged into the hot air direct discharging pipeline 4 through an annealing fan I1 and an annealing fan II 2, the hot air direct discharging pipeline 4 is connected with a shunt tee joint 5, the hot air direct discharging pipeline 4 is connected with a non-return air valve I8 and a pressure transmitter 7, and the outer end of the hot air direct discharging pipeline 4 is connected with an outdoor hood (9); shunt tee bend 5 is connected with bypass line 10, bypass line 10 is connected with waste heat draught fan 13, waste heat draught fan 13's air outlet is connected with waste heat conveying pipeline 14, pressure transmitter 7, waste heat draught fan 13 and PLC signal connection.
Can prevent the air current from outdoor backward flow through setting up non return blast gate 8, detect hot-blast direct vent exhaust waste heat wind pressure through pressure transmitter 7 of installation, 7 measured values of pressure transmitter and PLC system, waste heat draught fan 13 constitute closed loop control system, according to the waste heat wind pressure value automatically regulated waste heat draught fan 13 amount of wind of settlement, under the circumstances that guarantees hot-blast direct vent 4 exhaust waste heat wind pressure and be the pressure of pressure a little, furthest retrieves the waste heat amount of wind. In this embodiment, install temperature sensor 6 on the reposition of redundant personnel tee bend 5, reposition of redundant personnel tee bend 5 connects bypass line 10, and two 11 non return air valves are connected to bypass line 10, and two 11 non return air valves are connected with electric butterfly valve 12, and electric butterfly valve 12 connects the air intake of waste heat draught fan 13. The temperature sensor 6 and the pressure sensor 7 reflect the temperature and the pressure of hot air in the hot air direct discharging pipeline 4 in real time. And the air outlet side of the waste heat induced draft fan 13 is connected with a second electric butterfly valve 15, the second electric butterfly valve 15 is connected with a second check air valve 16, and the second check air valve 16 is connected with a waste heat conveying pipeline 14. The first electric butterfly valve 12 and the second electric butterfly valve 15 are interlocked with the residual heat induced draft fan 13, and the second check air valve 11 and the third check air valve 16 ensure correct flow direction of air flow to prevent backflow. The residual heat conveying pipeline 14 conveys hot air to the site.
The non-return air valve II effectively ensures that the air flow normally moves forward, prevents the air flow from flowing back to the hot air direct exhaust pipeline from the waste heat draught fan, and the electric butterfly valve I is interlocked with the waste heat draught fan, and the electric butterfly valve I is opened before the waste heat draught fan in normal conditions, and the waste heat draught fan low frequency is opened, and is closed after the waste heat draught fan, and the waste heat draught fan high frequency is shut down, and the waste heat draught fan is guaranteed to open and stop and reduce the technological influence on the annealing kiln.
The electric butterfly valve II is interlocked with the waste heat draught fan, the electric butterfly valve II is opened before the waste heat draught fan under normal conditions, the waste heat draught fan is opened at low frequency, the waste heat draught fan is closed at the back, the waste heat draught fan is stopped at high frequency, the non-return air valve III effectively ensures that air flow normally moves forward, and the air flow is prevented from flowing back to the waste heat draught fan from the waste heat conveying pipeline.
The working principle is as follows: can prevent the air current from outdoor backward flow through setting up non return blast gate 8, detect hot-blast direct vent exhaust waste heat wind pressure through pressure transmitter 7 of installation, 7 measured values of pressure transmitter and PLC system, waste heat draught fan 13 constitute closed loop control system, according to the waste heat wind pressure value automatically regulated waste heat draught fan 13 amount of wind of settlement, under the circumstances that guarantees hot-blast direct vent 4 exhaust waste heat wind pressure and be the pressure of pressure a little, furthest retrieves the waste heat amount of wind. A second check air valve 11, a first electric butterfly valve 12, a second electric butterfly valve 15 and a third check air valve 16 are respectively arranged on a bypass pipeline 10 and a waste heat conveying pipeline 14 at the inlet end of a waste heat induced draft fan 13 and are respectively linked with the waste heat induced draft fan, so that the correct flow direction of air flow is ensured, the influence on an annealing process is reduced, and extracted hot air passes through the conveying pipeline 14 to the site.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a float glass annealing kiln waste heat recovery utilizes device, includes hot-blast straight row pipeline (4), its characterized in that: the hot air direct discharging pipeline (4) is connected with a shunt tee joint (5), a pressure transmitter (7) and a first non-return air valve (8) are mounted on the hot air direct discharging pipeline (4), and the pressure transmitter 7 is used for detecting the waste heat air pressure discharged by the hot air direct discharging pipeline (4); shunt tee bend (5) are connected with bypass pipeline (10), bypass pipeline (10) are connected with waste heat draught fan (13), the air outlet of waste heat draught fan (13) is connected with waste heat conveying pipeline (14), pressure transmitter (7), waste heat draught fan (13) and PLC signal connection.
2. The device for recycling waste heat of the float glass annealing kiln according to claim 1, wherein: and a temperature sensor (6) is arranged on the shunt tee joint (5).
3. The device for recycling waste heat of the float glass annealing kiln according to claim 1, wherein: and the bypass pipeline (10) is connected with a second check air valve (11), the second check air valve (11) is connected with a first electric butterfly valve (12), and the first electric butterfly valve (12) is connected with an air inlet of a waste heat induced draft fan (13).
4. The device for recycling waste heat of the float glass annealing kiln according to claim 1, wherein: the outlet of the waste heat induced draft fan (13) is connected with a second electric butterfly valve (15), the second electric butterfly valve (15) is connected with a third check air valve (16), and the third check air valve (16) is connected with a waste heat conveying pipeline (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122334476.7U CN216011797U (en) | 2021-09-26 | 2021-09-26 | Float glass annealing kiln waste heat recovery utilizes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122334476.7U CN216011797U (en) | 2021-09-26 | 2021-09-26 | Float glass annealing kiln waste heat recovery utilizes device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216011797U true CN216011797U (en) | 2022-03-11 |
Family
ID=80530845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122334476.7U Active CN216011797U (en) | 2021-09-26 | 2021-09-26 | Float glass annealing kiln waste heat recovery utilizes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216011797U (en) |
-
2021
- 2021-09-26 CN CN202122334476.7U patent/CN216011797U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.55 Xigang North Road, Haigang District, Qinhuangdao City, Hebei Province Patentee after: Yaohua (Qinhuangdao) glass technology development Co.,Ltd. Address before: No.55 Xigang North Road, Haigang District, Qinhuangdao City, Hebei Province Patentee before: Qinhuangdao Yaohua Glass Technology Development Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230817 Address after: Room 425, Huayang Restaurant, East District, Economic and Technological Development Zone, Qinhuangdao City, Hebei Province, 066004 Patentee after: Yaohua (Qinhuangdao) Glass Co.,Ltd. Address before: No.55 Xigang North Road, Haigang District, Qinhuangdao City, Hebei Province Patentee before: Yaohua (Qinhuangdao) glass technology development Co.,Ltd. |
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| TR01 | Transfer of patent right |