CN2283655Y - Car-type heated air circulation heat treating furnace - Google Patents
Car-type heated air circulation heat treating furnace Download PDFInfo
- Publication number
- CN2283655Y CN2283655Y CN 96203169 CN96203169U CN2283655Y CN 2283655 Y CN2283655 Y CN 2283655Y CN 96203169 CN96203169 CN 96203169 CN 96203169 U CN96203169 U CN 96203169U CN 2283655 Y CN2283655 Y CN 2283655Y
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- China
- Prior art keywords
- air circulation
- furnace
- heating element
- circulation heat
- hot air
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- 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
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Abstract
The utility model relates to an improved trolley-typed heated air circulation heat treating furnace. The utility model is characterized in that an inner insulating layer filled with heat insulating materials is arranged between an electric heating element and the panel wall of a hearth; the turning of a heated air circulation passage in the furnace is made into an arc, and a shaft of a blast fan is provided with two bearings. The electric heating element is vertically arranged in a suspended type and is fixed to the top of the furnace by plate frames. The utility model has the advantages of even furnace temperature, low vibration and noise and convenient maintenance.
Description
The utility model is a kind of metal parts thermal treatment electric furnace.Belong to the car-type heat treating furnace technical field, particularly a kind of improved pallet car type hot air circulation heat treatment furnace.Mainly be applicable to the technologies such as heating assembling of tempering, ageing treatment and the part of metal parts, can be widely used in industrial enterprises such as automobile, oil engine, machinofacture.
Existing car-type heat treating furnace, furnace bottom is movable chassis, utilizes haulage gear that chassis is pulled out stove and loads and unloads material outward, draws in and carries out the workpiece heating in the stove, is applicable to the thermal treatment heating of medium batch workpiece.The hot air circulation electric furnace makes the furnace air forced-flow by blower fan, strengthens transmission of heat by convection, for accelerating heat-up rate, promote furnace temperature evenly to create and have ready conditions, but the vibration of fan and noise is bigger.The mounting means of the electrical heating element of existing hot air circulation heat treatment furnace is to be arranged in the burner hearth both sides, adopts the support on the furnace wall, and clamping plate and bolt are fixing in the horizontal direction.Need dismantle clamping plate and burner hearth wooden partition when changing electrical heating element, very inconvenient.And the close electrical heating element of burner hearth wooden partition, temperature is very high, and radiative transfer is strong.When workpiece in the stove is adorned to such an extent that expire, though adopted hot air circulation, the unevenness of furnace temperature still can reach tens degree (℃), can only satisfy the not high thermal treatment process needs of general requirement.(compiling " industrial furnace design manual " China Machine Press, version in 1981) referring to first designing institute of Ministry of Machine-Building Industry.
The purpose of this utility model provides a kind of improved pallet car type hot blast kind ring heat treatment furnace, the furnace temperature uniformity coefficient is reached ± 5 ℃ index, and can reduce the vibration and the noise of fan, improves the maintenance condition of equipment.
The technical solution of the utility model is on project organization existing pallet car type hot air circulation heat treatment furnace to be carried out three important techniques to improve.At first be the internal insulation (3) that between electrical heating element (3) and burner hearth wooden partition (9), has increased a filling thermal insulation material, reduced the thermoradiation efficiency of wooden partition (9).Improved the design of hot air circulation passage simultaneously, the hot-air channel of original right-angle steering has been improved to the curved channel smoothly that flows.Thereby strengthened circulating air, strengthened the transmission of heat by convection of warm air.Therefore can make four jiaos of burner hearth internal upper parts, the temperature head of 9 points for measuring temperature (10) at four jiaos of bottoms and burner hearth center is controlled at ± 5 ℃ of scopes in.The secondth, change water flat fishplate fixed U type tubular electrothermal element in original pallet car type hot air circulation heat treatment furnace into suspension type and vertically install, be fixed on stove top with grillage (4).Need repairing, when changing, this tubular electrothermal element (8) (electric heating tube) can be easily takes out and installs from furnace roof.The 3rd is that the supporting structure of fan (7) that electric motor (6) is driven improves, and has only a bearing on the primary structure fan shaft, is locating to have increased a bearing (5) near electric motor (6) now.After adopting double supporting structure, reduced the vibration and the noise of fan significantly.
This practical major advantage compared with prior art is that the temperature in the burner hearth is even.The thermal gradient energy of 9 measuring points is controlled at ± 3 ℃ in.Use the workpiece hardness uniformity after this new heat treatment furnace is handled, can satisfy high-level processing requirement, and avoided in the past owing to worry with furnaceman's part hardness inhomogeneous and must not much adorn the problem of a little workpiece.Therefore help boosting productivity, reduce the single-piece energy consumption.The utility model also has the vibration and the noise of reduction equipment in addition, improves the advantages such as use maintenance condition of equipment.
Accompanying drawing is a sectional elevation of the present utility model.
Further specify the project organization of a kind of embodiment of the utility model below in conjunction with accompanying drawing: as shown in the figure, be a pallet car type recirculation furnace that supplies metal parts low-temperaturetempering, ageing treatment to use.Heating power 36KW constant temperature power 12KW.Adopt the power supply of 3 phase 380V power supplys.Temperature rating is 300 ℃ in the burner hearth, furnace temperature uniformity coefficient ± 5 ℃.Chassis (1) by 4 wheel supports on two light rails.Chassis adopts electric motor through speed reduction unit and the transmission of chain doublereduction.Workpiece is contained in and enters burner hearth on the chassis, and starting point, the final position of chassis are spacing by travel switch.Body of heater (2) is by the close hollow interlayer structure that is welded into of materials such as steel plate, shaped steel, and the centre is filled out with thermal insulation material.Exhausted material can be selected pure aluminium silicate heat-insulating shield or super glass wool, rock wool etc. for use.Wherein the internal insulation (3) between electrical heating element (8) and the burner hearth wooden partition (9) should not be too thick.Electrical heating element (8) is selected power 2KW for use, the v-shaped tube shape well heater of length 1M, and totally 13, be evenly arranged in the burner hearth two sides, suspension is fixed on the grillage (4) of stove top.Centrifugal fan (7) is driven by electric motor (6).Except that an original bearing, increase bearing (5) on the fan shaft, become double supporting structure.Electrical heating element (8) vertically is inserted in the middle of the hot-air channel.Contact well the heat transfer efficiency height with hot air flow.Arc is all made at the hot-air channel turning, airflow smooth, and convection current is good, has guaranteed that the temperature of each measurement point (10) in the burner hearth is even.
Claims (3)
1. pallet car type hot air circulation heat treatment furnace of being made up of chassis (1), body of heater (2), fan (7) and electrical heating element (8) etc. is characterized in that:
A, the internal insulation (3) of a filling thermal insulation material is arranged between 9. at electrical heating element (8) and burner hearth wooden partition,
Hot air circulation passage turning point in b, the stove is a curved channel.
2, pallet car type hot air circulation heat treatment furnace according to claim 1 is characterized in that on the fan shaft of fan (7) wherein, is locating a bearing (5) near electric motor (6).Making fan is double supporting structure.
3, pallet car type hot air circulation heat treatment furnace according to claim 1 is characterized in that electrical heating element (8) wherein adopts suspension type vertically to install, and is fixed on stove top with grillage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203169 CN2283655Y (en) | 1996-01-26 | 1996-01-26 | Car-type heated air circulation heat treating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203169 CN2283655Y (en) | 1996-01-26 | 1996-01-26 | Car-type heated air circulation heat treating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283655Y true CN2283655Y (en) | 1998-06-10 |
Family
ID=33888860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203169 Expired - Fee Related CN2283655Y (en) | 1996-01-26 | 1996-01-26 | Car-type heated air circulation heat treating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283655Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235826A (en) * | 2011-05-05 | 2011-11-09 | 天龙科技炉业(无锡)有限公司 | Cone-shaped reverse diversion furnace gas circulation device |
| CN101906521B (en) * | 2009-12-08 | 2012-07-04 | 苏州工业园区姑苏科技有限公司 | Novel transverse hot air circulation device |
| CN103421935A (en) * | 2012-05-30 | 2013-12-04 | 上海理工大学 | Continuous tempering treatment device |
| CN104032099A (en) * | 2014-06-27 | 2014-09-10 | 江苏中热机械设备有限公司 | Hot air circulating oven |
| CN104164546A (en) * | 2014-08-04 | 2014-11-26 | 苏州新凌电炉有限公司 | Heat exchanger for slow cooling and preheating of isothermal normalizing furnace |
| CN106123580A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of heating furnace |
| CN108426454A (en) * | 2018-03-30 | 2018-08-21 | 内江至诚铂业科技有限公司 | A kind of chamber type electric resistance furnace |
| CN109210884A (en) * | 2018-08-17 | 2019-01-15 | 京港工业炉科技(苏州)有限公司 | A kind of heated-air circulation oven for Ni―Ti anode drying |
| CN112210656A (en) * | 2020-10-17 | 2021-01-12 | 屈学伟 | Heat treatment device for piston ring machining |
-
1996
- 1996-01-26 CN CN 96203169 patent/CN2283655Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906521B (en) * | 2009-12-08 | 2012-07-04 | 苏州工业园区姑苏科技有限公司 | Novel transverse hot air circulation device |
| CN102235826A (en) * | 2011-05-05 | 2011-11-09 | 天龙科技炉业(无锡)有限公司 | Cone-shaped reverse diversion furnace gas circulation device |
| CN102235826B (en) * | 2011-05-05 | 2013-05-22 | 天龙科技炉业(无锡)有限公司 | Cone-shaped reverse diversion furnace gas circulation device |
| CN103421935A (en) * | 2012-05-30 | 2013-12-04 | 上海理工大学 | Continuous tempering treatment device |
| CN104032099A (en) * | 2014-06-27 | 2014-09-10 | 江苏中热机械设备有限公司 | Hot air circulating oven |
| CN104032099B (en) * | 2014-06-27 | 2016-08-24 | 江苏中热机械设备有限公司 | A kind of heated-air circulation oven |
| CN104164546A (en) * | 2014-08-04 | 2014-11-26 | 苏州新凌电炉有限公司 | Heat exchanger for slow cooling and preheating of isothermal normalizing furnace |
| CN106123580A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of heating furnace |
| CN108426454A (en) * | 2018-03-30 | 2018-08-21 | 内江至诚铂业科技有限公司 | A kind of chamber type electric resistance furnace |
| CN109210884A (en) * | 2018-08-17 | 2019-01-15 | 京港工业炉科技(苏州)有限公司 | A kind of heated-air circulation oven for Ni―Ti anode drying |
| CN112210656A (en) * | 2020-10-17 | 2021-01-12 | 屈学伟 | Heat treatment device for piston ring machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |