CN202632132U - Kiln pressure and temperature stabilization system for waste heat generation of glass production line - Google Patents
Kiln pressure and temperature stabilization system for waste heat generation of glass production line Download PDFInfo
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- CN202632132U CN202632132U CN 201220017097 CN201220017097U CN202632132U CN 202632132 U CN202632132 U CN 202632132U CN 201220017097 CN201220017097 CN 201220017097 CN 201220017097 U CN201220017097 U CN 201220017097U CN 202632132 U CN202632132 U CN 202632132U
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- Prior art keywords
- flue
- waste heat
- production line
- temperature
- pressure
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- 239000011521 glass Substances 0.000 title claims abstract description 32
- 239000002918 waste heat Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 230000006641 stabilisation Effects 0.000 title claims abstract description 26
- 238000011105 stabilization Methods 0.000 title abstract 6
- 230000020169 heat generation Effects 0.000 title abstract 2
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 23
- 239000003546 flue gas Substances 0.000 description 23
- 239000007789 gas Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101000609957 Homo sapiens PTB-containing, cubilin and LRP1-interacting protein Proteins 0.000 description 2
- 102100039157 PTB-containing, cubilin and LRP1-interacting protein Human genes 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000010922 glass waste Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
Provided is a kiln pressure and temperature stabilization system for waste heat generation of glass production line, comprising a waste heat flue arranged between an adjusting flashboard door and a large flashboard door upon a flue collector, and an exhaust-heat boiler and an induced draught fan upon the waste heat flue, wherein the flue collector at the rear portion of the adjusting flashboard door is provided with a pressure sensor; the outlet of the exhaust-heat boiler is provided with another pressure sensor; the stabilization system carries out adjustment and control over the flashboard door according to the signals fed back by the pressure sensors and carries out adjustment and control over the rotating speed of the induced draught fan in an auxiliary manner; the outlet flue at the tail of the exhaust-heat boiler is provided with a temperature sensor; another temperature sensor is arranged behind the bypass flue large flashboard door; and the stabilization system carries out precise adjustment and control over the rotating speed of the induced draught fan according to the signals fed back by the temperature sensors. The kiln pressure and temperature stabilization system of the utility model allows precise adjustment and control over the kiln pressure and temperature of a glass melting furnace. Compared with the prior art, the temperature stabilization system of the utility model features better effect, simple structure, and easy operation.
Description
Technical field
The utility model relates to a kind of furnace pressure kiln temperature systems stabilisation of glass production line device for generating power by waste heat, relates in particular to a kind of furnace pressure kiln temperature control system of glass melter cogeneration.
Background technology
In the existing glass production line, the high-temperature flue gas that glass melter produces carries out through regenerator that heat interchange is laggard goes into flue collector, more successively through regulate lock gate hatch, the big damper door gets into chimney and discharges.And the flue gas of discharging has higher heat, in order to make full use of the heat of this part, reaches the purpose of energy-saving and emission-reduction, after reconciling lock gate hatch, residual heat flue is set, and closes big gate.The afterheat generating system of glass melter; Be that the high-temperature flue gas in the glass melter is gone into flue collector through the regenerator heat interchange is laggard; Get into residual heat flue through regulating lock gate hatch, single pass waste heat boiler imported valve, waste heat boiler, induced draft fan, heat boiler outlet valve are discharged through chimney again.In this process,, be electric energy with thermal power transfer through waste heat boiler.After increasing waste heat boiler, flue resistance increases about 700Pa, increases induced draft fan in the exhaust-heat boiler flue gas outlet, to stablize kiln inner pressure, guarantees that flue gas is unobstructed.
The afterheat generating system of glass melter receives the influence of the complicated technological process of production of glass production main line, if the pressure and temperature in the glass melter is unstable, very easily causes heat significantly to waste, even has potential safety hazard.The glass melter ordinary production kiln temperature temperature difference is controlled at standard temperature ± 1 and ℃ is advisable, and maximum temperature difference allows in standard temperature ± 3 ℃; Furnace pressure normally is controlled at pressure-fired 4.7Pa, and deviation control is at ± 0.3Pa, even in changing fiery process, furnace pressure, kiln temperature also should be controlled in the more stable scope.When furnace pressure changed, malleation was little to the kiln influence, and negative pressure will cause cold air to get into, and influenced very much production line and residual heat generating efficiency in the kiln.In addition.Factors such as Changes in weather, wind-force size, air humidity all can impact furnace pressure.
The furnace pressure kiln temperature control system of conventional glass production line generally adopts DCS, and promptly dcs is controlled, and furnace pressure is controlled through regulating lock gate hatch, is regulated by pressure transducer.Have following problem but only regulate flashboard gate control furnace pressure, such as, when changing fire pressure surge bigger, can't stablize furnace pressure; Get into the later stage at kiln, the regenerator resistance increases, and regulates lock gate hatch and can not realize the complete stability furnace pressure.Therefore, traditional furnace pressure kiln temperature control system, effect is relatively poor, and stability is bad.
The utility model content
The utility model provides a kind of glass production line cogeneration furnace pressure kiln temperature systems stabilisation, and is better than the furnace pressure kiln temperature stablizing effect of prior art, and simple in structure, easy operating.
To achieve these goals; The utility model adopts following technical scheme: glass production line cogeneration furnace pressure kiln temperature systems stabilisation; Comprise adjusting lock gate hatch and the residual heat flue between the big damper door that is arranged on the flue collector and be arranged on waste heat boiler and the induced draft fan on the residual heat flue; The flue collector of regulating the rear portion of lock gate hatch is provided with pressure transducer; Outlet at waste heat boiler simultaneously is provided with pressure transducer, and systems stabilisation is regulated control according to the signal of pressure transducer feedback to lock gate hatch, and the rotating speed to induced draft fan carries out auxiliary adjustment control simultaneously.Exhaust pass at the waste heat boiler afterbody is provided with temperature sensor, at bypass flue big damper temperature sensor is set behind the door simultaneously. and systems stabilisation is accurately regulated control according to the signal of temperature sensor feedback to the rotating speed of induced draft fan.
Further, be arranged on the air intake opening place that the pressure transducer on the flue collector can replace and be arranged on boiler of power generation by waste heat.
Further, as a kind of preferred, said induced draft fan adopts the frequency control induced draft fan.
Further, systems stabilisation is carried out variable frequency adjustment control through frequency converter to the rotating speed of induced draft fan.
In the aforementioned stable system; The data of pressure transducer and temperature sensor collection all send to the DSC control system; By the DSC control system image data and normal data are compared; Calculate the adjusting data of lock gate hatch and the adjusting data of induced draft fan, accordingly lock gate hatch and induced draft fan are regulated control.Wherein, the DSC control system, promptly dcs belongs to ripe prior art.
Further, as a kind of preferred, the said pressure transducer that is arranged on flue collector and heat boiler outlet can adopt pressure unit.
The utility model provides a kind of glass production line cogeneration furnace pressure kiln temperature systems stabilisation; Can accurately regulate control to the furnace pressure kiln temperature of glass melter; Successfully solved the technical barrier of glass melter low-temperature cogeneration, and had easy operating, characteristics easy to use.
Description of drawings
Fig. 1 is the glass production line cogeneration furnace pressure kiln temperature systems stabilisation synoptic diagram that the utility model provides.
Fig. 2 is the glass production line cogeneration furnace pressure kiln temperature systems stabilisation synoptic diagram that the utility model provides.
Identifier declaration:
1-glass kiln; 2-regulates lock gate hatch; The 3-flue collector; 4-bypass flue; 5-big damper door; The 6-waste heat boiler; The 7-induced draft fan; The 8-chimney; The P1-pressure transducer; The P2-pressure transducer; The T1-temperature sensor; The T2-temperature sensor.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the technical scheme of the utility model is done further detailed, clear, complete explanation, meet novelty, creativeness and the practicality that Patent Law requires fully with explanation the utility model.Should be noted that just a part of embodiment of the utility model that embodiment describes, can not be used to limit the protection domain of the utility model.
As shown in Figure 1; The glass production line cogeneration furnace pressure kiln temperature systems stabilisation that the utility model provides; Main composition is to have to be installed in 2-P1 of pressure transducer, the P2 that boiler of power generation by waste heat is imported and exported the flue gas pressures measuring point; Be installed in 2-T1 of temperature sensor, the T2 of temperature point behind boiler of power generation by waste heat exhaust gas temperature test point, the bypass residual heat flue big damper, two frequency control induced draft fans, DCS control system.
The DCS control system is measured the flue gas pressures that obtains the waste heat boiler air intake opening through pressure transducer P1.When setting corresponding furnace pressure stationary value; The corresponding relation of the aperture of the said adjusting lock gate hatch of survey record and waste heat boiler import flue gas pressures, and according to waste heat boiler import flue gas pressures the aperture of corresponding adjusting lock gate hatch during with the relation control different pressures of regulating the lock gate hatch aperture.
The mode same with aforesaid operations, DCS control system are measured the flue gas pressures that obtains the waste heat boiler gas outlet through pressure transducer P2.When setting corresponding furnace pressure stationary value, the corresponding relation of the rotating speed of the said induced draft fan of survey record and heat boiler outlet flue gas pressures, and the rotating speed of corresponding induced draft fan during according to the relation control different pressures of the rotating speed of heat boiler outlet flue gas pressures and induced draft fan.
The technical scheme of the utility model is main with the mode of regulating the aperture of lock gate hatch according to the pressure of P1 test point, is auxilliary with the mode of regulating the induced draft fan rotating speed according to the pressure of P2 test point.
According to the exhaust gas temperature T1 that is provided with at the waste heat boiler back-end ductwork and bypass flue big damper behind the door the flue-gas temperature T2 real time temperature data of gathering send into the DCS control system.Analyze the temperature difference of computing with both through DCS system configuration PID1, promptly the operational data value of T1-T2 and artificial input temperature difference setting value compare, and the output accurate signal is regulated the rotating speed of induced draft fan.Wherein require artificial input temperature difference setting value adjustable at 0-10 ℃; Effect is that glass waste heat flue gas flow receives the complicated production technology fluctuation of glass production line; When boiler fuel flow increases or reduces; This system calculates data value in real time, the rotating speed of corresponding adjustment induced draft fan, thus realize the maximization of boiler easily to the fume afterheat utilization factor.
Embodiment 2
As shown in Figure 2; The glass production line cogeneration furnace pressure kiln temperature systems stabilisation that the utility model provides; Main composition is that the pressure test point that is installed in flue collector, 2-P1 of pressure transducer, the P2 of boiler of power generation by waste heat outlet flue gas pressures measuring point are arranged; 2-T1 of temperature sensor, the T2 of temperature point behind boiler of power generation by waste heat exhaust gas temperature test point, the bypass residual heat flue big damper are installed, two frequency control induced draft fans, DCS control system.
The DCS control system is measured the flue gas pressures that obtains flue collector through pressure transducer P1.When setting corresponding furnace pressure stationary value, the aperture of the said adjusting lock gate hatch of survey record and the corresponding relation of flue collector flue gas pressures, and according to the flue collector flue gas pressures aperture of corresponding adjusting lock gate hatch during with the relation control different pressures of regulating the lock gate hatch aperture.
The mode same with aforesaid operations, DCS control system are measured the flue gas pressures that obtains the waste heat boiler gas outlet through pressure transducer P2.When setting corresponding furnace pressure stationary value, the corresponding relation of the rotating speed of the said induced draft fan of survey record and heat boiler outlet flue gas pressures, and the rotating speed of corresponding induced draft fan during according to the relation control different pressures of the rotating speed of heat boiler outlet flue gas pressures and induced draft fan.
According to the exhaust gas temperature T1 that is provided with at the waste heat boiler back-end ductwork and bypass flue big damper behind the door the flue-gas temperature T2 real time temperature data of gathering send into the DCS control system.Analyze the temperature difference of computing with both through DCS system configuration PID1, promptly the operational data value of T1-T2 and artificial input temperature difference setting value compare, and the output accurate signal is regulated the rotating speed of induced draft fan.Wherein require artificial input temperature difference setting value adjustable at 0-10 ℃; Effect is that glass waste heat flue gas flow receives the complicated production technology fluctuation of glass production line; When boiler fuel flow increases or reduces; This system calculates data value in real time, the rotating speed of corresponding adjustment induced draft fan, thus realize the maximization of boiler easily to the fume afterheat utilization factor.
Claims (5)
1. glass production line cogeneration furnace pressure kiln temperature systems stabilisation comprises adjusting lock gate hatch and the residual heat flue between the big damper door that is arranged on the flue collector and is arranged on waste heat boiler and the induced draft fan on the residual heat flue, it is characterized in that,
The flue collector of regulating the rear portion of lock gate hatch is provided with pressure transducer; Outlet at waste heat boiler simultaneously is provided with pressure transducer; Systems stabilisation is regulated control according to the signal of pressure transducer feedback to lock gate hatch, and the rotating speed to induced draft fan carries out auxiliary adjustment control simultaneously; Exhaust pass at the waste heat boiler afterbody is provided with temperature sensor, at bypass flue big damper temperature sensor is set behind the door simultaneously, and systems stabilisation is accurately regulated control according to the signal of temperature sensor feedback to the rotating speed of induced draft fan.
2. glass production line cogeneration furnace pressure kiln temperature systems stabilisation according to claim 1 is characterized in that, is arranged on the air intake opening place that the pressure transducer on the flue collector can replace and be arranged on boiler of power generation by waste heat.
3. according to claim 1 or 2 described glass production line cogeneration furnace pressure kiln temperature systems stabilisations, it is characterized in that said induced draft fan adopts the frequency control induced draft fan.
4. according to claim 1 or 2 described glass production line cogeneration furnace pressure kiln temperature systems stabilisations, it is characterized in that systems stabilisation is carried out variable frequency adjustment control through frequency converter to the rotating speed of induced draft fan.
5. according to claim 1 or 2 described glass production line cogeneration furnace pressure kiln temperature systems stabilisations, it is characterized in that pressure transducer can adopt pressure unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220017097 CN202632132U (en) | 2012-01-16 | 2012-01-16 | Kiln pressure and temperature stabilization system for waste heat generation of glass production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220017097 CN202632132U (en) | 2012-01-16 | 2012-01-16 | Kiln pressure and temperature stabilization system for waste heat generation of glass production line |
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| Publication Number | Publication Date |
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| CN202632132U true CN202632132U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220017097 Expired - Lifetime CN202632132U (en) | 2012-01-16 | 2012-01-16 | Kiln pressure and temperature stabilization system for waste heat generation of glass production line |
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| CN (1) | CN202632132U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900387A (en) * | 2014-04-10 | 2014-07-02 | 天津华能北方热力设备有限公司 | Glass kiln waste heat recovery system |
| CN108613211A (en) * | 2018-06-08 | 2018-10-02 | 江苏双良新能源装备有限公司 | A kind of bypass type flue gas waste heat recovery system and its take cigarette control method |
| CN108827012A (en) * | 2018-08-14 | 2018-11-16 | 沈阳创联工业技术有限公司 | Oil plant flue gas of heating furnace desulfurization air-introduced machine PLC frequency-converting speed-governing control system |
| CN112432510A (en) * | 2019-08-26 | 2021-03-02 | 宝山钢铁股份有限公司 | Control method for coexistence of conventional flue and waste heat recovery double flues |
| CN112965541A (en) * | 2021-02-02 | 2021-06-15 | 台玻安徽玻璃有限公司 | Float glass kiln pressure automatic control method |
-
2012
- 2012-01-16 CN CN 201220017097 patent/CN202632132U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900387A (en) * | 2014-04-10 | 2014-07-02 | 天津华能北方热力设备有限公司 | Glass kiln waste heat recovery system |
| CN103900387B (en) * | 2014-04-10 | 2015-12-30 | 天津华能北方热力设备有限公司 | The residual neat recovering system of glass furnace |
| CN108613211A (en) * | 2018-06-08 | 2018-10-02 | 江苏双良新能源装备有限公司 | A kind of bypass type flue gas waste heat recovery system and its take cigarette control method |
| CN108827012A (en) * | 2018-08-14 | 2018-11-16 | 沈阳创联工业技术有限公司 | Oil plant flue gas of heating furnace desulfurization air-introduced machine PLC frequency-converting speed-governing control system |
| CN112432510A (en) * | 2019-08-26 | 2021-03-02 | 宝山钢铁股份有限公司 | Control method for coexistence of conventional flue and waste heat recovery double flues |
| CN112432510B (en) * | 2019-08-26 | 2022-07-19 | 宝山钢铁股份有限公司 | Control method for coexistence of conventional flue and waste heat recovery double flues |
| CN112965541A (en) * | 2021-02-02 | 2021-06-15 | 台玻安徽玻璃有限公司 | Float glass kiln pressure automatic control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent director of cecep industrial energy saving Co.,Ltd. Document name: payment instructions |
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| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
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| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of cecep industrial energy conservation Co.,Ltd. The person in charge Document name: Notice of expiration and termination of patent right |
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| DD01 | Delivery of document by public notice |