CN206219430U - A kind of forced convertion combustion gas annealing furnace - Google Patents
A kind of forced convertion combustion gas annealing furnace Download PDFInfo
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- CN206219430U CN206219430U CN201621289351.XU CN201621289351U CN206219430U CN 206219430 U CN206219430 U CN 206219430U CN 201621289351 U CN201621289351 U CN 201621289351U CN 206219430 U CN206219430 U CN 206219430U
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Abstract
The utility model is related to a kind of forced convertion combustion gas annealing furnace, including furnace binding and heat-insulation layer, furnace binding is made up of upper furnace body and lower volume docking, ceramic roller is provided between upper furnace body and lower volume, convection current case is respectively equipped with inside upper furnace body and lower volume, convection current case presses close to be densely covered with spray-hole on the panel of ceramic roller, high temperature circulation blower fan and built-in heat exchanger fuel burner nozzle are separately installed with the side wall of upper furnace body and lower volume, the spiral case of high temperature circulation blower fan is arranged on inside furnace binding, and the air outlet of spiral case is connected by pipeline with convection current case；The utility model increases heat exchange area by fuel burner nozzle built-in heat exchanger, can obtain high heat exchange efficiency, and up to 450 DEG C or so, fuel can save more than 20% to combustion air preheating temperature；Can ensure that 100% flue gas is discharged from burner by setting flue gas ejector；Using multistage combustion, frequently igniting is reliable, and harmful substances from flue gases content is low.
Description
Technical field
The utility model is related to glass tempering furnace technical field, specifically a kind of forced convertion combustion gas annealing furnace.
Background technology
In recent years due to the fast development of building trade, the usage amount of building safety glass is increasing, so as to drive
The fast development of glass tempering furnace industry.
During production safety glass, it usually needs glass is heated using annealing furnace.
Traditional glass tempering furnace is electrical heating, and high energy consumption, operating cost remains high, while needing supporting Large Copacity
Transformer, investment is big.Gas-fired heater compared with electric furnace, because combustion gas is primary energy, energy-conservation low with operating cost
The characteristics of effect is significant.Without increasing high-power transformer newly, reduce to electricity needs, reduce transformer purchase commodity and base takes.
The annealing furnace for running in the market uses radiant burner, belongs to indirectly heat.Radiant burner is heated
Efficiency is low, and exhaust gas temperature is higher, low to furnace high-temperature flue gas recirculation utilization rate, and it is low to thus result in the efficiency of heating surface, and productivity ratio is low,
High energy consumption, it is poor with gas security protection performance, do not obtain the accreditation in market.
Utility model content
Have that the efficiency of heating surface is low, productivity ratio low for above-mentioned existing glass tempering furnace, high energy consumption, use gas security protection
The problems such as poor performance, the utility model provides a kind of forced convertion combustion gas annealing furnace.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of forced convertion combustion gas annealing furnace, including furnace binding and heat-insulation layer, furnace binding by upper furnace body and
Lower volume docking composition, is provided with ceramic roller, upper furnace body and lower furnace internal body portion between upper furnace body and lower volume
Convection current case is not provided with, and convection current case presses close on the panel of ceramic roller to be densely covered with spray-hole or nozzle, upper furnace body and lower volume
Side wall on be separately installed with high temperature circulation blower fan and built-in heat exchanger fuel burner nozzle, the spiral case of high temperature circulation blower fan is arranged on stove
Inside body steel construction, and the air outlet of spiral case is connected by pipeline with convection current case；
The built-in heat exchanger fuel burner nozzle is provided with smoke discharging pipe, gas pipeline, combustion-supporting wind pipeline, burner body, heat exchanger
And ignitor, the end of the burner body is arranged in furnace binding, and one end of gas pipeline is goed deep into burner body, heat exchange
Device is arranged in burner body, and is coated on outside gas pipeline, and combustion air passage, heat exchanger are formed between heat exchanger and gas pipeline
And form low-temperature flue gas passage in burner body between wall, smoke discharging pipe and low-temperature flue gas channel connection, combustion-supporting wind pipeline with it is combustion-supporting
Wind channel connection；Injection airduct is connected between smoke discharging pipe and combustion-supporting wind pipeline.
Described injection airduct pipeline is provided with injection air magnetic valve.
The gas pipeline is provided with gas proportion regulating valve and fuel gas safe electromagnetic valve.
The combustion-supporting wind pipeline is provided with combustion air magnetic valve.
Described heat exchanger is finned heat exchanger.
The plane that the convection current case presses close to ceramic roller panel with ceramic roller is formed is parallel.
The panel size that the convection current case presses close to ceramic roller is not less than glass to be heated.
Thermocouple is provided with the upper furnace body and lower volume, thermocouple is connected with PLC, PLC is adjusted with gas proportion
Valve and fuel gas safe electromagnetic valve are connected；
It is arranged on the convection current case bottom panel above ceramic roller and is provided with spray-hole, it is right below ceramic roller to be arranged on
Stream box top panel is provided with nozzle.
The beneficial effects of the utility model：
, be ejected into for high-temperature gas high-speed uniform by convection current case by the forced convertion combustion gas annealing furnace that the utility model is provided
Glass surface, while by fuel burner nozzle built-in heat exchanger, increasing heat exchange area, can obtain high heat exchange efficiency, combustion air
Up to 450 DEG C or so, fuel can save more than 20% to preheating temperature compared with common burner；Can be true by setting flue gas ejector
100% flue gas is protected to be discharged from burner；Using multistage combustion, frequently igniting is reliable, and harmful substances from flue gases content is low；Due to forcing
Heat convection, glass heat absorption efficiency is higher, and the heat time is shorter, and glass surface better quality, flatness is higher；With electrical heating phase
Than energy consumption cost can reduce by more than 40%, and energy-saving effect significantly, can greatly reduce operating cost, improve enterprise profit and product is competing
Strive power.
Brief description of the drawings
Fig. 1 the utility model front view structure sectional views；
Fig. 2 the utility model built-in heat exchanger fuel burner nozzle fundamental diagrams；
Fig. 3 the utility model plan structure sectional views；
Reference：1st, furnace binding, 2, heat-insulation layer, 3, high temperature circulation blower fan, 301, spiral case, 4, glass, 5, pottery
Porcelain roller road, 6, combustion air magnetic valve, 7, convection current case, 8, built-in heat exchanger fuel burner nozzle, 801, smoke discharging pipe, 802, combustion gas
Pipeline, 803, combustion-supporting wind pipeline, 804, burner body, 805, heat exchanger, 806, ignitor, 9, gas proportion regulating valve, 10,
Injection airduct, 11, injection air magnetic valve, 12, fuel gas safe electromagnetic valve, 13, diffusion valve.
Specific embodiment
The utility model is further elaborated with reference to specific embodiment.
As shown in figure 1, a kind of forced convertion combustion gas annealing furnace, including furnace binding 1 and heat-insulation layer 2, furnace binding 1
It is split type structure, is divided into two parts of upper furnace body and lower volume, upper furnace body can be under the effect of body of heater hoisting mechanism certainly
Dynamic lifting, ceramic roller 5 is provided with to facilitate maintenance, between upper furnace body and lower volume, inside upper furnace body and lower volume
Convection current case 7 is respectively equipped with, the bottom panel of convection current case 7 for being arranged on the top of ceramic roller 5 is provided with spray-hole, is arranged on ceramic roller
The top panel of convection current case 7 of the lower section of road 5 is provided with nozzle, and the convection current case 7 presses close to the panel and ceramic roller 5 of ceramic roller 5
The plane of formation is parallel, and convection current case 7 presses close to the panel size of ceramic roller 5 not less than glass to be heated, and upper furnace body is with
High temperature circulation blower fan 3 and built-in heat exchanger fuel burner nozzle 8, the snail of high temperature circulation blower fan 3 are separately installed with the side wall of portion's body of heater
Shell 301 is arranged on inside furnace binding 1, and the air outlet of spiral case 301 is connected by pipeline with convection current case 7；
As shown in Fig. 2 being the utility model built-in heat exchanger fuel burner nozzle fundamental diagram, the built-in heat exchanger combustion gas
Burner 8 is provided with smoke discharging pipe 801, gas pipeline 802, combustion-supporting wind pipeline 803, burner body 804 and heat exchanger 805, the burner
The end of body 804 is arranged in furnace binding 1, and one end of gas pipeline 802 is goed deep into burner body 804, and heat exchanger 805 is set
In burner body 804, and it is coated on outside gas pipeline 802, combustion air passage is formed between heat exchanger 805 and gas pipeline 802,
Low-temperature flue gas passage, smoke discharging pipe 801 and low-temperature flue gas channel connection are formed between heat exchanger 805 and the inwall of burner body 804, is helped
Combustion wind pipeline 803 and combustion air channel connection；Bypass is connected with injection airduct between smoke discharging pipe 801 and combustion-supporting wind pipeline 803
10.The described pipeline of injection airduct 10 is provided with injection air magnetic valve；The gas pipeline 802 is provided with gas proportion regulating valve
9 and fuel gas safe electromagnetic valve 12；The combustion-supporting wind pipeline 803 is provided with combustion air magnetic valve 6；Described heat exchanger 805 is wing
Plate heat interchanger, with larger heat exchange area, can obtain heat exchange efficiency higher；
There are air inlet and air outlet on spiral case 301, in the presence of high temperature circulation blower fan, furnace air is through built-in heat exchanger
High-temperature flue gas after fuel burner nozzle 8 is heated enter spiral case 301 by air inlet, then enter convection current case 7 by air outlet, then lead to
Uniform densely covered small hole injection on the panel of convection current case 7 is crossed to be exchanged heat to glass surface to be heated.Low-temperature flue gas one after heat exchange
Part is heated by built-in heat exchanger fuel burner nozzle 8 and is entered next circulation again, and high-temperature flue gas are in Wind Volume high temperature circulation
It is sufficiently mixed in the presence of blower fan, makes each several part temperature in stove more uniform；Another part low-temperature flue gas enter built-in heat exchanger
The heating combustion air of built-in heat exchanger 805 of fuel burner nozzle 8.
Combustion air can be heated to 450 DEG C or so by the low-temperature flue gas of described entrance built-in heat exchanger fuel burner nozzle 8, so
Burnt by the combustion air after preheating and combustion gas mixing.Low-temperature flue gas after heat exchange are discharged from smoke discharging pipe 801.
Described high temperature circulation blower fan 3, convection current case 7 and built-in heat exchanger fuel burner nozzle 8 are one group, can be according to body of heater length
Multigroup arrangement, is capable of achieving zone temperature control, as shown in Figure 3.
Igniting first need to be by combustion air to being purged in burner hearth, remaining imflammable gas in removing burner hearth, and from
Exhaust opening is discharged, and purge time is 3 minutes, then starts high temperature circulation blower fan 3, then open igniting switch ignition.Any one
8 three loss of ignition of built-in heat exchanger fuel burner nozzle, that is, re-start furnace purge.After lighting a fire successfully, treat that furnace temperature rises to 700 DEG C
Left and right, glass can enter stove heat.After glass is heated to tempering temperature, you can come out of the stove to tempering section blowing tempering.Above-mentioned institute
Having operation can be automatically performed under PLC controls.
During utility model works, the fire box temperature that can be measured according to thermocouple, and the signal of detection is transmitted to PLC, pass through
After PLC treatment, signal is fed back into gas proportion regulating valve 9 and automatically adjusts gas supply amount, so as to control built-in heat exchanger to fire
The flame size of gas burner 8, realizes the control of the combustion power size of built-in heat exchanger fuel burner nozzle 8.
During utility model works, flame status can be detected by ultraviolet flame detector, and the signal that will be detected is passed
To PLC, after being processed through PLC, signal is fed back into ignitor 806 and realizes automatic ignition.
During utility model works, following measures are being taken with gas security protection：
1. each built-in heat exchanger fuel burner nozzle installs a diffusion valve 13, in can ensureing to drain fuel gas pipeline before igniting
Residual air, the generation of detonation when preventing from lighting a fire.
2. furnace purge is carried out before lighting a fire first, the generation of detonation when being lighted a fire caused by valve is surprisingly revealed is prevented.
3. three loss of ignition of any built-in heat exchanger fuel burner nozzle, i.e., cut off combustion gas by fuel gas safe electromagnetic valve 12
Supply and purge again.
4. combustion fan/smoke exhaust fan is stopped, and cuts off gas supply by fuel gas safe electromagnetic valve 12 immediately.
5. furnace temperature exceeds the upper limit, cuts off gas supply by fuel gas safe electromagnetic valve 12 immediately.
6. high temperature circulation blower fan 3 shuts down or abnormal operating, and cutting off combustion gas by fuel gas safe electromagnetic valve 12 immediately supplies
Should.
Claims (9)
1. a kind of forced convertion combustion gas annealing furnace, including furnace binding and heat-insulation layer, furnace binding（1）By upper furnace body and
Lower volume is constituted, and ceramic roller is provided between upper furnace body and lower volume（5）, it is characterised in that：Upper furnace body and bottom
Furnace interior is respectively equipped with convection current case（7）, convection current case（7）Press close to ceramic roller（5）Panel on be densely covered with spray-hole or nozzle,
High temperature circulation blower fan is separately installed with the side wall of upper furnace body and lower volume（3）With built-in heat exchanger fuel burner nozzle（8）, it is high
Warm circulating fan（3）Spiral case（301）It is arranged on furnace binding（1）Inside, and spiral case（301）Air outlet by pipeline with
Convection current case（7）Connection；
The built-in heat exchanger fuel burner nozzle（8）It is provided with smoke discharging pipe（801）, gas pipeline（802）, combustion-supporting wind pipeline（803）、
Burner body（804）, heat exchanger（805）And ignitor（806）, the burner body（804）End be arranged on furnace binding
（1）It is interior, gas pipeline（802）One end go deep into burner body（804）It is interior, heat exchanger（805）It is arranged on burner body（804）It is interior, and
It is coated on gas pipeline（802）Outward, heat exchanger（805）And gas pipeline（802）Between formed combustion air passage, heat exchanger
（805）With burner body（804）Low-temperature flue gas passage, smoke discharging pipe are formed between inwall（801）With low-temperature flue gas channel connection, help
Combustion wind pipeline（803）With combustion air channel connection；Smoke discharging pipe（801）With combustion-supporting wind pipeline（803）Between be connected with injection air
Pipe（10）.
2. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：Described injection airduct（10）On pipeline
It is provided with injection air magnetic valve（11）.
3. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：The gas pipeline（802）It is provided with
Gas proportion regulating valve（9）And fuel gas safe electromagnetic valve（12）.
4. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：The combustion-supporting wind pipeline（803）On set
There is combustion-supporting wind-powered electricity generation magnet valve（6）.
5. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：Described heat exchanger（805）It is fin
Formula heat exchanger.
6. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：The convection current case（7）Press close to ceramic roller
Road（5）Panel and ceramic roller（5）The plane of formation is parallel.
7. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：The convection current case（7）Press close to ceramic roller
Road（5）Panel size be not less than glass to be heated.
8. forced convertion combustion gas annealing furnace as claimed in claim 3, it is characterised in that：In the upper furnace body and lower volume
Thermocouple is provided with, thermocouple is connected with PLC, PLC and gas proportion regulating valve（9）And fuel gas safe electromagnetic valve（12）Connection.
9. forced convertion combustion gas annealing furnace as claimed in claim 1, it is characterised in that：It is arranged on ceramic roller（5）Top
Convection current case（7）Bottom panel is provided with spray-hole, is arranged on ceramic roller（5）The convection current case of lower section（7）Top panel is provided with
Nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289351.XU CN206219430U (en) | 2016-11-29 | 2016-11-29 | A kind of forced convertion combustion gas annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621289351.XU CN206219430U (en) | 2016-11-29 | 2016-11-29 | A kind of forced convertion combustion gas annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206219430U true CN206219430U (en) | 2017-06-06 |
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ID=58787443
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621289351.XU Active CN206219430U (en) | 2016-11-29 | 2016-11-29 | A kind of forced convertion combustion gas annealing furnace |
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| Country | Link |
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| CN (1) | CN206219430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912188A (en) * | 2019-03-27 | 2019-06-21 | 天津泓雅节能科技有限责任公司 | A kind of combustion-type glass tempering heating device and operating method |
-
2016
- 2016-11-29 CN CN201621289351.XU patent/CN206219430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912188A (en) * | 2019-03-27 | 2019-06-21 | 天津泓雅节能科技有限责任公司 | A kind of combustion-type glass tempering heating device and operating method |
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