CN101762173A - Device leading waste heat of fume of heating furnace into low-temperature furnace - Google Patents
Device leading waste heat of fume of heating furnace into low-temperature furnace Download PDFInfo
- Publication number
- CN101762173A CN101762173A CN200810234907A CN200810234907A CN101762173A CN 101762173 A CN101762173 A CN 101762173A CN 200810234907 A CN200810234907 A CN 200810234907A CN 200810234907 A CN200810234907 A CN 200810234907A CN 101762173 A CN101762173 A CN 101762173A
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- China
- Prior art keywords
- inlet pipe
- furnace
- air inlet
- fume
- rectangular air
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 239000002918 waste heat Substances 0.000 title claims abstract description 9
- 239000003517 fume Substances 0.000 title abstract description 8
- 239000003546 flue gas Substances 0.000 claims description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 230000032683 aging Effects 0.000 abstract description 11
- 230000001351 cycling effect Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a device leading waste heat of fume of a heating furnace into a low-temperature furnace. An air duct is arranged between a furnace body and a hearth, a heat cycling fan is arranged in the air duct above the furnace body, one end of a rectangular air inlet pipe is arranged near the lower part of the air suction port of the heat cycling fan, the other end of the rectangular air inlet pipe penetrates through the furnace body, and an electronic type electrical control butterfly valve is arranged in the cavity of the other end of the rectangular air inlet pipe. The upper plane and the side face of one end of the rectangular air inlet pipe are provided with two square grooves with the sizes being 300mm multiplied by 200mm, and the two square grooves form a 90-degree angle. The rectangular air inlet pipe occupies one-sixth to one-eighth of the area of the air suction port on the lower part of the air suction port, and is arranged 10-50mm away from the air suction port. The invention adopts the cycling fan to suck hot fume in a solid melting furnace into an aging oven so that the fume and the gas in the aging oven are mixed for cycling; and the electronic type electrical control butterfly valve actuating mechanism is used to adjust the opening degree of the butterfly valve, so as to control the amount of the input fume, achieve the heat demand balance in the furnace and satisfy the requirements for temperature control accuracy of the aging oven.
Description
Technical field
The present invention relates to the energy cycling and reutilization device in the aluminum alloy heat processing procedure, is that the unnecessary discharged gas fume that the heating furnace fuel combustion produces is introduced a kind of device that the low temperature oven heating utilizes again.
Background technology
In the solid-solution and aging heat treatment process of aluminium alloy, the operating temperature of solid solution stove and two operation stoves of aging furnace differs 400 ℃, when the solid solution furnace fuel of high temperature during as heating source, producing during fuel combustion has 400～450 ℃ unnecessary flue gas to discharge out of the furnace just to keep that furnace pressure is a pressure-fired in the stove.What adopt at present is to make carrier with air-introduced machine, and it is that 130～150 ℃ of aging furnaces are made waste heat and utilized that the part or all of flue gas that need discharge the solid solution stove is delivered to operating temperature.Just there is following problem in this: 1. must be used as power power consumption with air-introduced machine.2. how much wayward the amount of sending is, adopts the manually-operated butterfly valve to regulate flow and be difficult to satisfy temperature control required precision in the aging furnace.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, provide a kind of, and in flue, can control the device of waste heat of flue gas of heating furnace being introduced low temperature oven of flue gas quantity delivered automatically without the air-introduced machine supplied flue gases.
The technical solution used in the present invention is: between body of heater and burner hearth the air channel is set, in the air channel above body of heater thermal circulation fan is installed, one end of rectangular air inlet pipe is installed near the bottom, inlet scoop of thermal circulation fan, and it is outer and electronic type motorized adjustment butterfly valve is installed in the tube chamber of the other end that the other end passes body of heater.
Two sizes are set is 300X200mm and the square groove that is mutually an angle of 90 degrees plane and side on rectangular air inlet pipe one end.
Rectangular air inlet pipe occupies 1/6～1/8 of inlet scoop area in the bottom, inlet scoop, spacing 10～50mm between rectangular air inlet pipe and the inlet scoop.
The hot flue gas that the present invention is drawn in the solid solution stove by circulating fan enters in the aging furnace, with timeliness furnace gas mixing circulation; And what of air demand can be loaded on electronic type electric butterfly valve executing agency in the fume pipe according to variation of temperature control by the temperature controller in the control system, regulate the opening degree of butterfly valve and control the flue gas inlet, reach the demand balance of furnace heat, satisfy the requirement of aging furnace temperature-controlled precision.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1. body of heater; 2. electronic type motorized adjustment butterfly valve; 3. rectangular air inlet pipe; 4. air channel; 5. burner hearth; 6. inlet scoop; 7. thermal circulation fan.
The specific embodiment
As shown in Figure 1, between the body of heater 1 of aging furnace and burner hearth 5, air channel 4 is set, thermal circulation fan 7 is installed in the air channel 4 above body of heater 1.The hot flue gas that this thermal circulation fan 7 is drawn in the solid solution stove enters in the timeliness body of heater 1.A rectangular air inlet pipe 3 is passed body of heater 1 from body of heater 1 lateral wall enter in the burner hearth 5, the one end is installed near 6 bottoms, inlet scoop of thermal circulation fan 7, and rectangular air inlet pipe 3 tube chambers of the other end outside being positioned at body of heater 1 are installed electronic type motorized adjustment butterfly valve 2.
The steel of described rectangular air inlet pipe 3 usefulness thickness of slab 2mm are made.Two sizes are set is 300X200mm and the square groove 8 that is mutually an angle of 90 degrees plane and side on rectangular air inlet pipe 3 one ends in burner hearth 5, is convenient to the smooth and easy suction of flue gas, again can unimpeded furnace atmosphere circulation when not inhaling waste heat.6 bottoms occupy 1/6～1/8 of inlet scoop 6 areas to rectangular air inlet pipe 3 in the inlet scoop, in order to avoid influence normal hot air circulation.Spacing 10～50mm between rectangular air inlet pipe 3 and the inlet scoop 6, otherwise furnace gas can enter inlet scoop 6 from the pipe side, and influence sucks exhaust gas volumn.
Fume afterheat utilization of the present invention is by the thermocouple that control system is arranged in this zone temperature to be fed back to intelligent temperature controller, temperature controller is given the electric operator of electronics motorized adjustment butterfly valve 2 through PID output 4～20mA control signal after adjusting, change into angular displacement with certain output torque, thereby drive the butterfly valve of governor motion, satisfy thermally equilibrated demand in the stove to reach automatic control flue gas flow.Choosing electronics motorized adjustment butterfly valve 2 will adapt with the operating temperature of hot air circulation blower 7 in the aging furnace.
Claims (3)
1. device of waste heat of flue gas of heating furnace being introduced low temperature oven, between body of heater (1) and burner hearth (5), air channel (4) is set, thermal circulation fan (7) is installed in the air channel (4) of body of heater (1) top, it is characterized in that: an end of rectangular air inlet pipe (3) is installed near the bottom, inlet scoop (6) of thermal circulation fan (7), and it is outer and electronic type motorized adjustment butterfly valve (2) is installed in the tube chamber of the other end that the other end passes body of heater (1).
2. according to claim 1ly a kind of waste heat of flue gas of heating furnace is introduced the device of low temperature oven, it is characterized in that: on the last plane of rectangular air inlet pipe (3) one ends and two sizes are set is 300X200mm and the square groove (8) that is mutually an angle of 90 degrees in the side.
3. a kind of device of waste heat of flue gas of heating furnace being introduced low temperature oven according to claim 1, it is characterized in that: (6) bottom occupies 1/6～1/8 of inlet scoop (6) area to rectangular air inlet pipe (3) in the inlet scoop, spacing 10～50mm between rectangular air inlet pipe (3) and inlet scoop (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810234907A CN101762173A (en) | 2008-11-10 | 2008-11-10 | Device leading waste heat of fume of heating furnace into low-temperature furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810234907A CN101762173A (en) | 2008-11-10 | 2008-11-10 | Device leading waste heat of fume of heating furnace into low-temperature furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101762173A true CN101762173A (en) | 2010-06-30 |
Family
ID=42493479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810234907A Pending CN101762173A (en) | 2008-11-10 | 2008-11-10 | Device leading waste heat of fume of heating furnace into low-temperature furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101762173A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184420A (en) * | 2019-06-05 | 2019-08-30 | 南京长江工业炉科技集团有限公司 | A kind of anti-overtemperature heating furnace of automobile stabilizer bar |
| CN110343834A (en) * | 2019-08-15 | 2019-10-18 | 沈阳东大三建工业炉制造有限公司 | A kind of 6 heat-treatment furnace flue gas waste heat utilization device of aluminum alloy T and method |
-
2008
- 2008-11-10 CN CN200810234907A patent/CN101762173A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184420A (en) * | 2019-06-05 | 2019-08-30 | 南京长江工业炉科技集团有限公司 | A kind of anti-overtemperature heating furnace of automobile stabilizer bar |
| WO2020244274A1 (en) * | 2019-06-05 | 2020-12-10 | 南京长江工业炉科技集团有限公司 | Over-temperature preventing type heating furnace for stabilizer rod of automobile |
| CN110343834A (en) * | 2019-08-15 | 2019-10-18 | 沈阳东大三建工业炉制造有限公司 | A kind of 6 heat-treatment furnace flue gas waste heat utilization device of aluminum alloy T and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |