CN201713544U - Bell-type strong convection bright annealing oven - Google Patents
Bell-type strong convection bright annealing oven Download PDFInfo
- Publication number
- CN201713544U CN201713544U CN2010201819722U CN201020181972U CN201713544U CN 201713544 U CN201713544 U CN 201713544U CN 2010201819722 U CN2010201819722 U CN 2010201819722U CN 201020181972 U CN201020181972 U CN 201020181972U CN 201713544 U CN201713544 U CN 201713544U
- Authority
- CN
- China
- Prior art keywords
- bell
- blower
- strong convection
- plc controller
- frequency transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A bell-type strong convection bright annealing oven comprises a furnace body, a circulation blower arranged at the bottom of the furnace, a temperature sensor arranged in the furnace body, a PLC controller in signal connection with the temperature sensor, and a frequency converter connected with the blower; and the PLC controller is electrically connected with the frequency converter. The utility model adopts the frequency speed control technology to control the operation of the blower and changes the speed of the blower along with the temperature, thereby ensuring that the heat exchange efficiency is not reduced in different temperature stages, shortening the product processing time, and obtaining heat-treatment products with good uniformity, better metal grain refining effect and higher working quality.
Description
Technical field
The utility model relates to the metal heat treatmet apparatus field, particularly a kind of bell-jar strong convection bright annealing oven.
Background technology
At metallurgy industry, bell-jar strong convection bright annealing oven is widely used in thermal treatment process, utilizes the strong convection of furnace bottom blower fan to be used for improving heat exchanger effectiveness, and blower fan becomes the important factor that influences bell furnace thermo-efficiency.When temperature maintenance in the stove in higher level, gas density is relatively low, heat exchange efficiency reduces, means commonly used are to improve rotation speed of fan.Traditional bell furnace generally adopts 4/8 utmost point double speed AC asynchronous motor as the gas circulation propulsion source for improving heat exchanger effectiveness, and blower fan can carry out 2 grades of speed governing.Usually, blower fan at rotating speed below 320 ℃ is: 725 rev/mins, i.e. and low cruise; Surpassing this temperature switches to speed: 1443 rev/mins, i.e. and high-speed cruising.Yet the bell furnace of 2 grades of speed governing still can not satisfy the requirement that varies with temperature and change.
Summary of the invention
The purpose of this utility model provides a kind of bell-jar strong convection bright annealing oven that adopts variable-frequency control technique to control fan operation.
For achieving the above object, the technical solution adopted in the utility model is: a kind of bell-jar strong convection bright annealing oven, comprise: body of heater, be arranged on furnace bottom recirculation blower, be arranged on the intravital temperature sensor of described stove, described annealing furnace also comprise the PLC controller that connects with signal with described temperature sensor, with the frequency transformer that described blower fan is connected, described PLC controller and described frequency transformer are electrically connected.
Described bell-jar strong convection bright annealing oven also comprises the service entrance switch that is used to protect described frequency transformer, and described service entrance switch is electrically connected with described frequency transformer.
Because technique scheme utilization, the utility model compared with prior art has following advantage: the utility model adopts variable-frequency control technique to control the operation of blower fan, make fan speed follow variation of temperature and change, guaranteed that annealing furnace does not reduce at different temperature stage heat exchanger effectivenesss; Heat exchanger effectiveness has shortened the time of product processing after improving, needed 23 hours just can finish annealing originally, only needs 21 hours just can finish annealing after the employing converter technique, and every stove reduces by 2 hours working hours, can significantly increase work efficiency.In addition,, make heat treated product performance obtain large increase owing to improved the efficient of heat exchange, the product good uniformity, metal grain is refinement more, and processibility is better.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Wherein: 1, body of heater; 2, blade; 3, blower fan; 4, temperature sensor; 5, PLC controller; 6, frequency transformer; 7, service entrance switch; 8, annealed material.
Embodiment
As shown in drawings, the utility model discloses a kind of bell-jar strong convection bright annealing oven, comprise: body of heater 1, be arranged on furnace bottom recirculation blower 3, be arranged on the temperature sensor 4 in the described body of heater 1, the blade 2 of recirculation blower 3 is positioned at body of heater 1,8 convection current are blown to the furnace annealing material.
Described annealing furnace also comprises PLC controller 5, the frequency transformer 6 that is connected with described blower fan 3, the service entrance switch 7 that is used to protect described frequency transformer; described PLC controller 5 is electrically connected with described temperature sensor 4 and frequency transformer 6 respectively, and described service entrance switch 7 is electrically connected with described frequency transformer 6.
Temperature sensor 4 in time feeds back to PLC controller 5 with temperature in the stove, PLC controller 5 is calculated temperature variation, the every rising of design temperature just changes control signal one time for 1 ℃, control of conversion device 6 improves rotating speed, otherwise temperature whenever reduces 1 ℃, and fan speed also reduces thereupon, make the rotating speed of blower fan 3 can cooperate the interior temperature of stove to make corresponding adjustment all the time, thereby make heat exchanger effectiveness keep stable.
Can shorten the time of product processing after heat exchanger effectiveness improves, need 23 hours just can finish annealing originally, only need 21 hours just can finish annealing after the employing converter technique, every stove reduces by 2 hours working hours, thereby increases work efficiency.In addition, heat treated product performance also are improved, the product good uniformity, and metal grain is refinement more, and processibility is better.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. bell-jar strong convection bright annealing oven comprises: body of heater, be arranged on furnace bottom recirculation blower, be arranged on the intravital temperature sensor of described stove, it is characterized in that described annealing furnace also comprises:
Frequency transformer, described frequency transformer is connected with described blower fan; And,
The PLC controller, described PLC controller is electrically connected with described temperature sensor and frequency transformer respectively.
2. bell-jar strong convection bright annealing oven according to claim 1, it is characterized in that: it also comprises the service entrance switch that is used to protect described frequency transformer, described service entrance switch is electrically connected with described frequency transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201819722U CN201713544U (en) | 2010-04-28 | 2010-04-28 | Bell-type strong convection bright annealing oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201819722U CN201713544U (en) | 2010-04-28 | 2010-04-28 | Bell-type strong convection bright annealing oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201713544U true CN201713544U (en) | 2011-01-19 |
Family
ID=43459544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201819722U Expired - Fee Related CN201713544U (en) | 2010-04-28 | 2010-04-28 | Bell-type strong convection bright annealing oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201713544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447184A (en) * | 2016-12-22 | 2017-12-08 | 机械科学研究总院青岛分院 | A kind of cryogenic gas carburizer |
| CN108285967A (en) * | 2018-03-13 | 2018-07-17 | 盐城圣奥热处理有限公司 | A kind of bell type annealing furnace |
| CN110629136A (en) * | 2019-10-28 | 2019-12-31 | 江苏大亚铝业有限公司 | Annealing furnace equipment and using method thereof |
-
2010
- 2010-04-28 CN CN2010201819722U patent/CN201713544U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447184A (en) * | 2016-12-22 | 2017-12-08 | 机械科学研究总院青岛分院 | A kind of cryogenic gas carburizer |
| CN107447184B (en) * | 2016-12-22 | 2019-12-03 | 机械科学研究总院青岛分院有限公司 | A kind of convection type gas carbruizing furance |
| CN108285967A (en) * | 2018-03-13 | 2018-07-17 | 盐城圣奥热处理有限公司 | A kind of bell type annealing furnace |
| CN110629136A (en) * | 2019-10-28 | 2019-12-31 | 江苏大亚铝业有限公司 | Annealing furnace equipment and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103509917B (en) | Heat treatment process for refinement of maraging stainless steel grain | |
| CN201713544U (en) | Bell-type strong convection bright annealing oven | |
| CN103882193B (en) | A kind of cold rolling non-oriented electrical steel method for annealing of outer oxide | |
| CN202193806U (en) | Reducing annealing furnace | |
| CN103882191A (en) | Annealing method for total nitrogen produced cold-rolled non-oriented electrical steel | |
| CN103088201A (en) | Aging treatment method of fan impeller material | |
| CN203960269U (en) | The how excellent process furnace of middle heating-type | |
| CN105039672A (en) | Forged steering knuckle cooling temperature control system | |
| CN102002658A (en) | Annealing process of cold rolled titanium roll | |
| CN203999684U (en) | A kind of quick metal bright annealing oven | |
| CN104099542B (en) | The heat treatment method of aluminium alloy heavy forging | |
| CN202193804U (en) | Heat-treatment tempering chamber | |
| CN206887153U (en) | A kind of aluminium section bar is recycled hot-air heating type aging furnace | |
| CN105603339A (en) | Electric pulse auxiliary aging treatment method for ZL114A aluminum alloy | |
| CN102490996A (en) | Insulation case | |
| CN1218055C (en) | Therma processing method for crankshaft of high-power engine | |
| CN209081933U (en) | A kind of steel strip annealing furnace | |
| CN104046752A (en) | Quick metal bright annealing furnace | |
| CN103643239A (en) | Processing technology for nuts | |
| CN102443688A (en) | Protective gas treatment device and method of annealing region and bluing region of motor core heat treatment furnace | |
| CN104372354A (en) | Online heat treatment acid pickling and phosphating technology for medium and high-carbon thin steel wire used for ropes | |
| CN201873535U (en) | Device for reducing loss in titanium tetrachloride producing process | |
| CN102776333A (en) | Process for manufacturing 20Mn2 steel forgings | |
| CN204039457U (en) | A kind of body of heater of continuous mesh-belt quenching furnace | |
| CN205133710U (en) | Efficient aluminium alloy ageing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |