CN204608081U - A kind of device improving electric-heating heat treatment stove heat-up rate - Google Patents
A kind of device improving electric-heating heat treatment stove heat-up rate Download PDFInfo
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- CN204608081U CN204608081U CN201520288595.5U CN201520288595U CN204608081U CN 204608081 U CN204608081 U CN 204608081U CN 201520288595 U CN201520288595 U CN 201520288595U CN 204608081 U CN204608081 U CN 204608081U
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Abstract
Improve a device for electric-heating heat treatment stove heat-up rate, belong to electric-heating heat treatment furnace apparatus technical field, for improving electric-heating heat treatment stove heat-up rate.Its technical scheme is: increase a set of geseous fuel heating unit and a set of smoke circulating device in electrically heated process stove furnace side, geseous fuel and enter gaseous combustion burner hearth by burner from the combustion-supporting warm air of preheated air pipeline, heat smoke after burning enters electric-heating heat treatment stove by heat smoke transport pipe, utilize the heat smoke of about 200-1000 DEG C to improve heat treatment furnace heat-up rate, the flue gas heating finished piece(s) in heat treatment furnace is discharged out of the furnace by smoke outlet, enters smoke circulating device.The utility model is by increasing geseous fuel heating unit, effectively improve heat treatment furnace heat-up rate, subtract few temperature rise period required time, the requirement of increase yield and thermal treatment process change can be met, treatment production efficiency is largely increased, there is significant economic benefit.
Description
Technical field
The utility model relates to a kind of device improving electric-heating heat treatment stove heat-up rate, belongs to electric-heating heat treatment furnace apparatus technical field.
Background technology
Heat treatment furnace is industrial furnace metal works being carried out to various metal heat treatmet, and temperature general requirement is lower, and scope, greatly between 200-1000 DEG C, requires more strictly to control furnace temperature and furnace atmosphere etc. at holding stage.In order to accurately control furnace temperature, the large Multifunctional electric heating of heat treatment furnace.For cycling heat treatment furnace, need to heat up frequently, be incubated, operation of lowering the temperature, needed for insulation and temperature-fall period, electric power is lower, and needed for the temperature rise period, electric power is larger.In order to avoid the power of the supporting electricity consumption facilities such as transformer is excessive, it is too high to invest and idle mixing time is longer etc. problem, during general electric-heating heat treatment stove design, on the basis meeting processing requirement, can needed for holding stage electric power then suitably amplify determine electricity consumption peak power.Although can construction investment be reduced like this, but a problem can be produced, namely heat treatment furnace heating up speed is slower, temperature rise period required time is longer, particularly when thermal treatment process requires change, as needs increase yield or when improving thermal treatment temp, heat treatment furnace temperature rise period required time can be longer, has a strong impact on the production efficiency of thermal treatment process.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of device improving electric-heating heat treatment stove heat-up rate, this device effectively can improve heat treatment furnace heat-up rate, reduce temperature rise period required time, to meet the requirement of increase yield and raising thermal treatment temp, improve the production efficiency of thermal treatment process.
The technical scheme solved the problems of the technologies described above is:
A kind of device improving electric-heating heat treatment stove heat-up rate, it comprises geseous fuel heating unit, geseous fuel heating unit is made up of geseous fuel burner hearth, preheated air pipeline, burner, heat smoke transport pipe, geseous fuel pipeline is connected with burner respectively with preheated air pipeline, burner is connected with geseous fuel burner hearth, and geseous fuel burner hearth is connected by the burner hearth of heat smoke transport pipe with electric-heating heat treatment stove.
The device of above-mentioned raising electric-heating heat treatment stove heat-up rate, it also has smoke circulating device, smoke circulating device is by smoke outlet, heat-exchanger rig, low-temperature flue gas pipeline, induced draft fan, circulating flue gas pipeline, smoke discharging pipe forms, smoke outlet is positioned on the furnace wall of electric-heating heat treatment stove, smoke outlet is connected with heat-exchanger rig by pipeline, heat-exchanger rig is connected with low-temperature flue gas pipeline with preheated air pipeline respectively, low-temperature flue gas pipeline is connected with smoke discharging pipe with circulating flue gas pipeline respectively, circulating flue gas pipeline is connected with geseous fuel burner hearth by induced draft fan, smoke discharging pipe is connected with chimney.
The beneficial effects of the utility model are:
The utility model increases a set of geseous fuel heating unit and a set of smoke circulating device in electrically heated process stove furnace side, geseous fuel and the combustion-supporting warm air from preheated air pipeline enter gaseous combustion burner hearth by burner, the heat smoke produced after burning enters electric-heating heat treatment stove by heat smoke transport pipe, utilize the heat smoke of about 200-1000 DEG C to improve heat treatment furnace heat-up rate, the flue gas heating finished piece(s) in heat treatment furnace is discharged out of the furnace by smoke outlet, enter smoke circulating device, major part flue gas through circulating flue gas Cemented filling to heating unit burner hearth, small part enters air through chimney.
The utility model need not carry out furnace body and supporting electricity consumption transformation of facility at electric-heating heat treatment stove, when namely not affecting original normal production, by increasing geseous fuel heating unit, effectively improve heat treatment furnace heat-up rate, subtract few temperature rise period required time, the requirement of increase yield and thermal treatment process change can be met, treatment production efficiency is largely increased, there is significant economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, mark is as follows: electric-heating heat treatment stove 1, geseous fuel burner hearth 2, preheated air pipeline 3, burner 4, heat smoke transport pipe 5, smoke outlet 6, heat-exchanger rig 7, low-temperature flue gas pipeline 8, induced draft fan 9, circulating flue gas pipeline 10, smoke discharging pipe 11, chimney 12, geseous fuel pipeline 13.
Embodiment
The utility model increases a set of geseous fuel heating unit and a set of smoke circulating device in electrically heated process stove furnace side, the heat smoke of about 200-1000 DEG C that utilizes geseous fuel heating unit to produce is to improve heat treatment furnace heat-up rate, namely when the heat treatment furnace temperature rise period requires not to be very strict to temperature uniformity, electrically heated is replaced with geseous fuel heating, then when later stage temperature rise period is about to enter holding stage, then Electric heating is switched to.
Show in figure, geseous fuel heating unit is made up of geseous fuel burner hearth 2, preheated air pipeline 3, burner 4, heat smoke transport pipe 5.Geseous fuel pipeline 13 is connected with burner 4 respectively with preheated air pipeline 3, and burner 4 is connected with geseous fuel burner hearth 2, and geseous fuel burner hearth 2 is connected by the burner hearth of heat smoke transport pipe 5 with electric-heating heat treatment stove 1.Geseous fuel in geseous fuel pipeline 13 and enter geseous fuel burner hearth 2 by burner 4 from the combustion-supporting warm air of preheated air pipeline 3, the heat smoke produced after burning enters electric-heating heat treatment stove 1 by heat smoke transport pipe 5, and the flue gas heating finished piece(s) in heat treatment furnace is discharged out of the furnace by smoke outlet 6.
Show in figure, smoke circulating device is made up of smoke outlet 6, heat-exchanger rig 7, low-temperature flue gas pipeline 8, induced draft fan 9, circulating flue gas pipeline 10, smoke discharging pipe 11.Smoke outlet 6 is positioned on the furnace wall of electric-heating heat treatment stove 1, smoke outlet 6 is connected with heat-exchanger rig 7 by pipeline, the heat smoke of discharging from electric-heating heat treatment stove 1 enters heat-exchanger rig 7 by smoke outlet 6, heat-exchanger rig 7 is connected with low-temperature flue gas pipeline 8 with preheated air pipeline 3 respectively, heat smoke is heated by the preheated air in heat-exchanger rig 7 pairs of preheated air pipelines 3, flue gas after heat exchange enters low-temperature flue gas pipeline 8, low-temperature flue gas pipeline 8 is connected with smoke discharging pipe 11 with circulating flue gas pipeline 10 respectively, circulating flue gas pipeline 10 is connected with geseous fuel burner hearth 2 by induced draft fan 9, smoke discharging pipe 11 is connected with chimney 12, wherein most of flue gas is delivered to geseous fuel burner hearth 2 through circulating flue gas pipeline 10, enter the burner hearth of electric-heating heat treatment stove 1 again, small part enters air through chimney 12.
The utility model using method:
A. before periodically electric-heating heat treatment stove 1 prepares to heat up, the burner 4 on geseous fuel heating unit is lighted, the geseous fuel that geseous fuel pipeline 13 is carried and mix also ignition from the combustion-supporting warm air of preheated air pipeline 3 burner 4 in;
B. the high-temperature flue gas that gas fuel combustion produces enters in geseous fuel burner hearth 2, circulating flue gas in electric-heating heat treatment stove 1 after cooling discharge also reenters in geseous fuel burner hearth 2 through smoke circulating device, by thermal treatment process requirement, heat smoke is transferred to suitable temperature range (200-1000 DEG C) in geseous fuel burner hearth 2;
C. heat smoke 200-1000 DEG C being met thermal treatment temp requirement is delivered in electric-heating heat treatment stove 1 by resistant to elevated temperatures heat smoke transport pipe 5;
D. the heat smoke of 200-1000 DEG C is at electric-heating heat treatment stove 1 internal circulation flow and heated parts, and temperature is discharged out of the furnace by smoke outlet 6 after reducing;
E. the flue gas discharged out of the furnace enters low-temperature flue gas pipeline 8 after heat-exchanger rig 7 (be used for warm-up combustion-supporting air) further cooling, then through induced draft fan 9, according to the needs of thermal treatment process, major part low-temperature flue gas is delivered in geseous fuel burner hearth 2 through circulating flue gas pipeline 10, continue to utilize as circulating flue gas, small part is discharged to outside factory building through smoke discharging pipe 11 through chimney 12;
F. in above-mentioned flue gas recirculation process, through the combustion air of heat-exchanger rig 7 preheating, be delivered to the burner 4 before geseous fuel burner hearth 2 through preheated air pipeline 3, participate in burning, achieve energy utilization and maximize;
G. through the application of geseous fuel burner hearth 2, electric-heating heat treatment stove 1 in-furnace temperature raises gradually, when the holding temperature required close to thermal treatment process, during as differed 20-50 DEG C of scope, open the electrically heated of electric-heating heat treatment stove 1, close geseous fuel heating unit gradually, complete a geseous fuel heating period.
Claims (2)
1. one kind is improved the device of electric-heating heat treatment stove heat-up rate, it is characterized in that: it comprises geseous fuel heating unit, geseous fuel heating unit is made up of geseous fuel burner hearth (2), preheated air pipeline (3), burner (4), heat smoke transport pipe (5), geseous fuel pipeline (13) is connected with burner phase (4) respectively with preheated air pipeline (3), burner (4) is connected with geseous fuel burner hearth (2), and geseous fuel burner hearth (2) is connected by the burner hearth of heat smoke transport pipe (5) with electric-heating heat treatment stove (1).
2. the device of raising electric-heating heat treatment stove heat-up rate according to claim 1, it is characterized in that: it also has smoke circulating device, smoke circulating device is by smoke outlet (6), heat-exchanger rig (7), low-temperature flue gas pipeline (8), induced draft fan (9), circulating flue gas pipeline (10), smoke discharging pipe (11) forms, smoke outlet (6) is positioned on the furnace wall of electric-heating heat treatment stove (1), smoke outlet (6) is connected with heat-exchanger rig (7) by pipeline, heat-exchanger rig (7) is connected with low-temperature flue gas pipeline (8) with preheated air pipeline (3) respectively, low-temperature flue gas pipeline (8) is connected with smoke discharging pipe (11) with circulating flue gas pipeline (10) respectively, circulating flue gas pipeline (10) is connected with geseous fuel burner hearth (2) by induced draft fan (9), smoke discharging pipe (11) is connected with chimney (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288595.5U CN204608081U (en) | 2015-05-07 | 2015-05-07 | A kind of device improving electric-heating heat treatment stove heat-up rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288595.5U CN204608081U (en) | 2015-05-07 | 2015-05-07 | A kind of device improving electric-heating heat treatment stove heat-up rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204608081U true CN204608081U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520288595.5U Expired - Fee Related CN204608081U (en) | 2015-05-07 | 2015-05-07 | A kind of device improving electric-heating heat treatment stove heat-up rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204608081U (en) |
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2015
- 2015-05-07 CN CN201520288595.5U patent/CN204608081U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: CHENGDE BRANCH OF HBIS Group Address before: 067102 Luanhe town finance square, Shuangluan District, Chengde, Hebei, Hebei iron and steel Limited by Share Ltd Chengde branch Patentee before: HEBEI IRON AND STEEL Co.,Ltd. CHENGDE BRANCH |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |