CN220246195U - Internal waste heat circulation system of heat treatment furnace and production line - Google Patents
Internal waste heat circulation system of heat treatment furnace and production line Download PDFInfo
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- CN220246195U CN220246195U CN202321542317.9U CN202321542317U CN220246195U CN 220246195 U CN220246195 U CN 220246195U CN 202321542317 U CN202321542317 U CN 202321542317U CN 220246195 U CN220246195 U CN 220246195U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 29
- 238000012806 monitoring device Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 7
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 239000003546 flue gas Substances 0.000 description 11
- 239000000779 smoke Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The internal waste heat circulation system of the heat treatment furnace comprises a furnace body I, a furnace body II, a ventilation device, a monitoring device and an adjusting device; the monitoring device is arranged on the ventilation device and is respectively close to the first furnace body and the second furnace body; the adjusting device is positioned at one side of the ventilation device, which is close to the furnace body I; the monitoring device can monitor the temperature of the air flow in the two ends of the ventilation device so as to adjust the temperature of the air flow output from the first furnace body, so that the air flow is safely conveyed into the second furnace body or the second furnace body through the ventilation device. The circulating system provided by the application is simple in structure, safe and reliable, small in occupied area and free from influencing the normal working state of any furnace body; the automatic control degree is high, the maintenance cost is low, the utilization rate of the residual heat in the furnace body can be effectively improved, and the environmental pollution can be reduced. The application also provides a production line with the circulation system.
Description
Technical Field
The application belongs to the technical field of heat treatment line production equipment, and particularly relates to an internal waste heat circulation system of a heat treatment furnace and a production line with the circulation system.
Background
At present, heating equipment used in some heat treatment production lines is a solution furnace and an aging furnace, and the solution furnace (a high-temperature furnace) and the aging furnace (a low-temperature furnace) are respectively heated, so that energy waste exists in the heating mode, the energy consumption is high, and particularly in the process of mass production, the energy consumption is high, so that the enterprise cost is greatly increased. The heat treatment line is a continuous production line, the furnace cannot be stopped, and if the internal waste heat in the solution furnace is directly discharged into the air, the environment is polluted and the energy is wasted.
Disclosure of Invention
The application provides a heat treatment furnace internal waste heat circulation system and a production line provided with the circulation system, which solve the technical problem of how to quickly, safely and effectively continuously and circularly introduce internal waste heat in a solution furnace into an aging furnace in the prior art.
In order to solve at least one of the technical problems, the technical scheme adopted in the application is as follows:
an internal waste heat circulation system of a heat treatment furnace, comprising: furnace body one and furnace body two still include:
the ventilation device is used for communicating the first furnace body with the second furnace body;
monitoring means provided with thermocouple means for monitoring the temperature of the air flow entering said ventilation means;
a regulating device configured with a cool air valve for controlling the temperature of the air flow;
the monitoring device is arranged on the ventilation device and is respectively close to the first furnace body and the second furnace body;
the adjusting device is positioned at one side of the ventilation device, which is close to the furnace body I;
the monitoring device can monitor the temperature of the air flow in the two ends of the ventilation device so as to adjust the temperature of the air flow output from the first furnace body, so that the air flow is safely conveyed into the second furnace body or the second furnace body through the ventilation device.
Further, the ventilation device is arranged at the top of the first furnace body and the second furnace body and is respectively communicated with the first furnace body, the second furnace body and the external processing device.
Further, the ventilation device includes:
a fan, a first pipeline communicated with the first furnace body, a second pipeline communicated with the second furnace body and a third pipeline for discharging, wherein,
the second pipeline and the third pipeline are communicated with the first pipeline through a fourth pipeline;
the fan is arranged on one side, close to the first pipeline, of the fourth pipeline and is communicated with the first pipeline and the fourth pipeline respectively.
Further, the cold air valve is communicated with the first pipeline and is arranged close to one side of the fan.
Further, pneumatic control valves are arranged on one side, close to the four sides of the pipeline, of the pipeline two and the pipeline three.
Further, the fourth pipeline is arranged across the width between the first furnace body and the second furnace body.
Further, two thermocouple pieces are arranged in the monitoring device, wherein one thermocouple piece is arranged on the first pipeline and is close to one side of the fan; the other thermocouple element is arranged on the fourth pipeline and is close to one side of the second pipeline.
Further, the cold air valve is positioned between the fan and the thermocouple element configured on the first pipeline.
Further, the monitoring device further comprises a controller, and the controller is respectively and electrically connected with the thermocouple piece, the ventilation device and the cold air valve.
A production line configured with a circulation system as described above.
The internal waste heat circulation system of the heat treatment furnace designed by the application has the advantages of simple structure, safety and reliability, small occupied area and no influence on the normal working state of any furnace body; the automatic control degree is high, the maintenance cost is low, the utilization rate of the residual heat in the furnace body can be effectively improved, and the environmental pollution can be reduced; the circulation system has wide universality and can be popularized and applied to other heat treatment production furnace bodies. The application also provides a production line with the circulation system.
Drawings
FIG. 1 is a top view of a waste heat recycling system within a heat treatment furnace according to an embodiment of the present application;
fig. 2 is a front view of an internal waste heat circulation system of a heat treatment furnace according to an embodiment of the present application.
In the figure:
10. furnace body one 20, furnace body two 30 and ventilation device
31. Pipeline one 32, pipeline two 33 and pipeline three
34. Pipeline IV 35, fan 36 and pneumatic control valve
40. Monitoring device 41, thermocouple one 42 and thermocouple two
50. Adjusting device 51, cold air valve
Detailed Description
The present application will now be described in detail with reference to the accompanying drawings and specific examples.
The embodiment provides an internal waste heat circulation system of a heat treatment furnace, as shown in fig. 1-2, including: furnace body one 10 and furnace body two 20 still include: a ventilator 30 for communicating the first furnace 10 and the second furnace 20, a monitor 40 for monitoring the temperature of the air flow entering the ventilator 30, and a regulator 50 for controlling the temperature of the air flow. Wherein the monitoring device 40 is provided with a thermocouple for monitoring the temperature of the gas flow and a controller for monitoring the entire circulation system; the regulating device 50 is provided with a cold air valve 51 for cooling the air flow; the monitoring device 40 is arranged on the ventilation device 30 and is respectively close to the furnace body I10 and the furnace body II 20; the adjusting device 50 is located at a side of the ventilation device 30 close to the furnace body 10. The monitoring device 40 can monitor the temperature of the gas flow in both ends of the ventilator 30 to regulate the temperature of the gas flow output from the furnace 10 to be safely transferred to the furnace 20 via the ventilator 30 or to other external processing devices other than the furnace 20.
Further, the ventilation device 30 is disposed on top of the first furnace body 10 and the second furnace body 20, and is respectively communicated with the first furnace body 10, the second furnace body 20 and an external processing device (omitted from the drawing). The furnace body I10 is a solid solution furnace which is commonly used as a high-temperature furnace in heat treatment production, the furnace body II 20 is an aging furnace which is commonly used as a low-temperature furnace in heat treatment production, and in order to improve the utilization rate of residual heat in the solid solution furnace, a circulating system is designed, and hot air flow required by a composite standard temperature is conveyed into the aging furnace through continuous monitoring, judgment and accurate adjustment; the automatic control degree is high, the maintenance cost is low, the utilization rate of internal residual heat in the furnace body I10 serving as a solid solution furnace and the working efficiency of the furnace body II 20 serving as an aging furnace can be effectively improved, and the environmental pollution can be reduced.
Specifically, the ventilation device 30 includes a fan 35, a first pipeline 31 that is communicated with the air outlet of the first furnace body 10, a second pipeline 32 that is communicated with the air inlet of the second furnace body 20, and a third pipeline 33 that is used for discharging the air flow that does not meet reuse, where the third pipeline 33 is a fume-beating pipeline, that is, the fume that cannot be discharged into the second furnace body 20 needs to be discharged into an external processing device through the third pipeline 33, and the fume is discharged into the air after being processed by the processing device, so that the environment is not polluted. The second pipe 32 and the third pipe 33 are both communicated with the first pipe 31 through the fourth pipe 34. The fan 35 is disposed on one side of the pipeline four 34 near the pipeline one 31 and is respectively communicated with the pipeline one 31 and the pipeline four 34, a large amount of high-temperature flue gas is generated in the furnace body one 10, and the hot gas flows can be discharged from an air outlet serving as the top of the solution furnace of the furnace body one 10 under the suction effect of the fan 35, enter the pipeline one 31 and circulate to one side near the furnace body two 20 through the pipeline four 34.
The monitoring device 40 includes two thermocouple elements, which are commonly used thermocouples in this embodiment, and a controller, which monitors the temperature of the hot gas flow in the ventilation device 30. The first thermocouple piece 41 is arranged on one side of the first pipeline 31 close to the fan 35, the second thermocouple piece 42 is arranged on one side of the fourth pipeline 34 close to the second pipeline 32, and the first thermocouple piece 42 is respectively used for monitoring the temperature of the flue gas flow input into the first pipeline 31 from the furnace body 10 so as to judge whether the flue gas flow can safely circulate in the fourth pipeline 34; the second thermocouple 42 is used for monitoring the temperature of the hot air flow after being regulated by the cold air valve 51. The thermocouple elements are all in electrical communication with the controller, which is common knowledge in the art, and the drawings of the controller are omitted.
In order to protect the normal use of the fan 35, it is necessary to ensure that the temperature of the hot air flowing into the fan is within a temperature range acceptable to the fan 35, and a thermocouple element 41 for monitoring the temperature of the air flow is provided in front of the fan 35, that is, on the first pipe 31, so as to continuously monitor the temperature of the flue gas outputted from the first furnace body 10.
If thermocouple one 41 monitors that the temperature of the flue gas output from furnace one 10 is below the highest range of fans 35, i.e., does not exceed the acceptable temperature, then the air flow may be normally drawn by fans 35 and through fans 35 and into conduit four 34.
If the first thermocouple 41 monitors that the temperature of the flue gas entering the first pipeline 31 from the first furnace body 10 is higher than the temperature range born by the fan 35, the controller notifies a cold air valve 51 arranged between the first thermocouple 41 and the fan 35 to open, and cold air is introduced into the first pipeline 31. The cold air valve 51 is communicated with the first pipeline 31 through an external refrigerating device, and cold air can be introduced into the first pipeline 31 when needed, so that the temperature of hot air flow exceeding the tolerance temperature of the fan 35 is reduced, the air flow passing through the fan 35 is in a safe circulation range, and the working safety of the fan 35 is ensured; and the quality effect of the temperature of the air flow output by the furnace body I10 can be further judged.
Preferably, the cold air valve 51 is provided as a valve body for adjusting the temperature of the air flow on the first duct 31, and in order to ensure that the operation state thereof does not collide with the operation state of the first thermocouple 41, it is required that the first thermocouple 41 and the cold air valve 51 are disposed on both sides of the first duct 31 and communicate with the first duct 31, while the first thermocouple 41 and the cold air valve 51 are disposed on the first duct 31, and the cold air valve 51 is disposed between the first thermocouple 41 and the fan 35.
The fourth pipeline 34 is arranged across the width between the first furnace body 10 and the second furnace body 20 and is mainly used for conveying air flow to the second pipeline 32 communicated with the second furnace body 20 or the third pipeline 33 communicated with an external treatment device. Meanwhile, in order to ensure the continuity and safety of the circulation of the air after flowing through the fourth pipeline 34, a pneumatic control valve 36 is arranged on one side, close to the fourth pipeline 34, of the second pipeline 32 and the third pipeline 33; the activation control valve 36 is electrically connected to the controller to respectively protect the correct flow direction of the air stream.
The second thermocouple element 42 is mainly used for monitoring the temperature of the air flow to be input into the second furnace body 20, and is disposed on the side of the fourth pipeline 34, which is close to the second furnace body 20.
When the second thermocouple 42 monitors that the temperature of the air flow to be input into the second furnace body 20 via the fourth pipe 34 can be used for heating the second furnace body 20, the controller can control the pneumatic control valve 36 on the second pipe 32 to be opened, and the pneumatic control valve 36 arranged on the third pipe 33 to be closed, so that the high-temperature air flow can enter the second furnace body 20 via the second pipe 32, and the aging furnace can be heated, thereby improving the utilization rate of waste heat flue gas in the first furnace body 10, saving resources and reducing production cost.
When the thermocouple part II 42 sees that the temperature of the air flow to be input into the furnace body II 20 is too low through the pipe III 34, the air flow cannot be used for heating the furnace body II 20, the controller can control the air control valve 36 on the pipe II 32 to be closed, and open the air control valve 36 arranged on the pipe III 33, so that the hot air flow is input into the external treatment device through the pipe III 33 serving as a smoke exhaust pipe, the tail smoke can be safely and directly discharged into the environment after being treated, and the waste heat smoke in the furnace body I10 can be accurately, safely and automatically treated without affecting the continuous normal operation of the furnace body II 20 and the furnace body I10, so that the resources are saved, the environment is protected and the production cost is reduced.
The working procedure of this embodiment is:
after receiving a combustion instruction sent by a controller, a burner in a furnace body I10 serving as a solid solution furnace starts to work; after working, a large amount of high-temperature flue gas flow is generated, and is discharged from a smoke outlet on the furnace top in the furnace body I10 and enters the pipeline I31 under the suction effect of the fan 35. Before entering conduit four 34, the temperature of the air stream is monitored by thermocouple one 41 and the data is sent to the controller, which determines the data monitored by thermocouple one 41. When the temperature of the air flow monitored by the first thermocouple 41 is higher than the bearable temperature set by the fan 35, the controller informs the cold air valve 51 to open, cold air is introduced into the first pipeline 31, so that the temperature of the flue gas flow in the first pipeline 31 is reduced to be within the bearable temperature range set by the fan 35, and then the flue gas flow is controlled by the fan 35 to enter the fourth pipeline 34 and is conveyed to one side of the second furnace body 20 serving as an ageing furnace. When the temperature of the air flow monitored by the first thermocouple part 41 is lower than the temperature range set by the fan 35, the air flow is directly controlled to enter the fourth pipeline 34 through the fan 35 without opening the cold air valve 51, and is conveyed to the side of the second furnace body 20 serving as the ageing furnace. When the air flow circulates in the fourth pipeline 34, the second thermocouple 42 monitors the air flow in real time, and transmits the obtained data to the controller, and the controller then makes a secondary judgment on the temperature of the air flow. When the temperature in the fourth pipeline 34 measured by the second thermocouple 42 meets the heating standard of the aging furnace, the temperature sensor can be used for heating the aging furnace, the controller informs the pneumatic control valve 36 on the second pipeline 32 to be opened and informs the pneumatic control valve 36 on the fourth pipeline 34 to be closed, and then the high-temperature flue gas flow can enter the air inlet at the top of the second furnace body 20 through the second pipeline 32 to enter the interior of the aging furnace, so that the heating of the workpiece is completed. When the temperature in the pipeline four 34 measured by the thermocouple part two 42 is too low, the controller can judge that the temperature does not meet the heating standard of the aging furnace, the controller can control the pneumatic control valve 36 on the pipeline two 32 to be closed, and open the pneumatic control valve 36 arranged on the pipeline three 33, so that hot air is input into an external treatment device through the pipeline three 33 serving as a smoke exhaust pipeline, and tail smoke can be safely and directly discharged into the environment after being treated.
A production line configured with a circulation system as described above.
The internal waste heat circulation system of the heat treatment furnace designed by the application has the advantages of simple structure, safety and reliability, small occupied area and no influence on the normal working state of any furnace body; the automatic control degree is high, the maintenance cost is low, the utilization rate of the residual heat in the furnace body can be effectively improved, and the environmental pollution can be reduced; the circulation system has wide universality and can be popularized and applied to other heat treatment production furnace bodies. The application also provides a production line with the circulation system.
The foregoing detailed description of the embodiments of the present application is provided merely as a preferred embodiment of the present application and is not intended to limit the scope of the present application. All equivalent changes and modifications can be made within the scope of the present application.
Claims (10)
1. An internal waste heat circulation system of a heat treatment furnace, comprising: furnace body one and furnace body two still include:
the ventilation device is used for communicating the first furnace body with the second furnace body;
monitoring means provided with thermocouple means for monitoring the temperature of the air flow entering said ventilation means;
a regulating device configured with a cool air valve for controlling the temperature of the air flow;
the monitoring device is arranged on the ventilation device and is respectively close to the first furnace body and the second furnace body;
the adjusting device is positioned at one side of the ventilation device, which is close to the furnace body I;
the monitoring device can monitor the temperature of the air flow in the two ends of the ventilation device so as to adjust the temperature of the air flow output from the first furnace body, so that the air flow is safely conveyed into the second furnace body or the second furnace body through the ventilation device.
2. The heat treatment furnace internal heat recovery system according to claim 1, wherein the ventilation device is disposed on top of the first furnace body and the second furnace body, and is respectively communicated with the first furnace body, the second furnace body and the external treatment device.
3. The heat treatment furnace internal heat recovery system according to claim 1 or 2, wherein the ventilation device comprises:
a fan, a first pipeline communicated with the first furnace body, a second pipeline communicated with the second furnace body and a third pipeline for discharging, wherein,
the second pipeline and the third pipeline are communicated with the first pipeline through a fourth pipeline;
the fan is arranged on one side, close to the first pipeline, of the fourth pipeline and is communicated with the first pipeline and the fourth pipeline respectively.
4. A heat treatment furnace internal waste heat circulation system according to claim 3, wherein the cold air valve is communicated with the first pipeline and is arranged close to one side of the fan.
5. The heat treatment furnace internal heat recovery system according to claim 4, wherein a pneumatic control valve is provided on one side of the second and third pipes close to the fourth pipe.
6. The heat treatment furnace internal heat recovery system according to claim 5, wherein the fourth pipe is disposed across a width between the first furnace body and the second furnace body.
7. The heat treatment furnace internal heat recovery system according to any one of claims 4 to 6, wherein two thermocouple members are provided in the monitoring device, one of the thermocouple members being disposed on the first pipe and close to the fan; the other thermocouple element is arranged on the fourth pipeline and is close to one side of the second pipeline.
8. The heat treatment furnace internal heat recovery system according to claim 7, wherein the cool air valve is located between the fan and the thermocouple member provided on the first pipe.
9. The heat treatment furnace internal heat recovery system according to claim 8, wherein the monitoring device further comprises a controller electrically connected to the thermocouple, the ventilation device, and the cool air valve, respectively.
10. A production line, characterized in that it is equipped with a circulation system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321542317.9U CN220246195U (en) | 2023-06-16 | 2023-06-16 | Internal waste heat circulation system of heat treatment furnace and production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321542317.9U CN220246195U (en) | 2023-06-16 | 2023-06-16 | Internal waste heat circulation system of heat treatment furnace and production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220246195U true CN220246195U (en) | 2023-12-26 |
Family
ID=89266391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321542317.9U Active CN220246195U (en) | 2023-06-16 | 2023-06-16 | Internal waste heat circulation system of heat treatment furnace and production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220246195U (en) |
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2023
- 2023-06-16 CN CN202321542317.9U patent/CN220246195U/en active Active
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