CN2328668Y - Silicon controlled rectifier AC voltage regulating resistance furnace - Google Patents
Silicon controlled rectifier AC voltage regulating resistance furnace Download PDFInfo
- Publication number
- CN2328668Y CN2328668Y CN 98228951 CN98228951U CN2328668Y CN 2328668 Y CN2328668 Y CN 2328668Y CN 98228951 CN98228951 CN 98228951 CN 98228951 U CN98228951 U CN 98228951U CN 2328668 Y CN2328668 Y CN 2328668Y
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- furnace
- burner hearth
- convection tubes
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- heater
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Abstract
The utility model relates to a silicon controlled rectifier AC voltage regulating resistance furnace, comprising a circular cage case type furnace body, a furnace lid matched with the furnace body and is provided with an exhaust hole, an insulating layer arranged in the furnace body, heating elements arranged on the inner wall of the furnace body and the furnace cavity floor. Each layer of furnace body adopts the sand seal detachable connection; convection tubes are arranged in the furnace lid and the furnace cavity. The furnace cavity floor is provided with a self-adjusting displacement supporting device with synchronous heat expansion and cold contraction. The layer of the furnace body can be determined according to different work. The operation is convenient, the heat loss is small, the thermal efficiency is high, and the nondeforming of the heat-treating work can be ensured.
Description
The utility model relates to a kind of heat treatment furnace, particularly relates to a kind of SCR AC regulating resistor stove.
Relevant thermal treatment has box, well formula, bell-type, pallet car type etc. with the structure of resistance furnace, its profile diameter is generally all less than 10m, and large-scale thermal treatment mainly is pallet car type with resistance furnace, the body of heater of above form is when heat treated part, because body of heater produces displacement deformation because of expanding with heat and contract with cold when heating and cooling, place the intravital workpiece of stove also can therefore be out of shape thereby make, workpiece size is big more, is out of shape serious more.
The purpose of this utility model is to provide a kind of maximum heat treated part to reach 120 tons, and can guarantee the indeformable SCR AC regulating resistor of heat treatment process stove.
The utility model SCR AC regulating resistor stove is to realize like this, it comprises circular cage form body of heater, cooperate the bell that has venting hole on it with body of heater, be arranged on the intravital thermal insulation layer of stove, be installed in the heating unit of furnace wall and burner hearth bottom, in bell and the burner hearth convection tubes is installed, burner hearth bottom is provided with to expand with heat and contract with cold adjusts the displacement supporting device synchronously automatically.Wherein, circular cage form body of heater is a multilayered structure, adopts the removable connection of sand seal between each layer body of heater, can assemble the body of heater number of plies according to workpiece size during thermal treatment.Venting hole on the bell is generally 8, is mainly used in humidity discharging and accelerates to reduce furnace temperature.The thermal insulation layer of inboard wall of furnace body and burner hearth bottom can adopt high energy-conservation alumina silicate fibre blanket, and fixes by expanded metal lath.Heating unit can be used the far infrared plate, is set on the ceramic plate by resistance wire to constitute, and can be connected with temperature regulator, by temperature in the temperature regulator control stove.Convection tubes is made up of the three way type convection tubes that is installed in the bell centre and two semi-circular convection tubess that are installed in burner hearth bottom, a straight-through burner hearth in the three way type convection tubes, about two communicate with semi-circular convection tubes respectively, ventilating pit and inlet mouth are arranged on the semi-circular convection tubes.Inlet mouth is connected with blower fan during use.Expand with heat and contract with cold synchronously automatic displacement supporting device by being installed in the track that radially distributes at the bottom of the burner hearth, the billy gate that is positioned on the track is formed, billy gate is made of roller bearing frame and the roller bearing that is installed on the roller bearing frame, for preventing the track temperature distortion, influence the serviceability of billy gate under the condition of high temperature, should between the roller bearing of track and billy gate, backing plate be set, be generally the stainless steel backing plate.
The principle of work of the utility model SCR AC regulating resistor stove is, heat treated workpiece shove charge and come out of the stove and all can adopt transfer gantry (frame), mobile crane, driving and rail car, during thermal treatment, workpiece is placed on the billy gate, by thermal treatment temp in the temperature regulator control stove that is connected with resistance furnace.Warm air is blown into the semi-circular convection tubes of burner hearth bottom in the stove by blower fan from the three way type convection tubes on the bell, and the ventilating pit from semi-circular convection tubes is discharged, enter in the burner hearth, the interior warm air of the burner hearth three way type convection tubes from bell again is blown into the semi-circular convection tubes by blower fan, and ventilating pit from it enters in the burner hearth, so cycle operation, thus upper and lower temperature difference in the burner hearth reduced, make and set up the uniform temperature field boundary in the burner hearth rapidly.When the processed workpiece temperature distortion, because workpiece is placed on the dolly, dolly can slide in orbit, and is indeformable to guarantee heat treated part.
The advantage of the utility model SCR AC regulating resistor stove is, can determine the body of heater number of plies according to different workpieces, and easy and simple to handle, thermosteresis is little, the thermo-efficiency height, and can guarantee that heat treated part is indeformable.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model structural representation
Fig. 2: the utility model vertical view
Fig. 3: the A-A sectional view among Fig. 1
Fig. 4: billy gate cooperates figure with track
Fig. 5: the B-B sectional view among Fig. 1
The utility model SCR AC regulating resistor stove comprises circular cage form body of heater 1, cooperate the bell 3 that venting hole 2 is arranged on it with body of heater 1, be arranged in the body of heater 1 also by expanded metal lath 4 fixed thermal insulation layers 5, be installed in the heating unit 7 of body of heater 1 inwall and burner hearth bottom, be installed in the three way type convection tubes 8 and two semi-circular convection tubess 9 that are installed in burner hearth bottom in bell 3 centres, a straight-through burner hearth in the three way type convection tubes 8, about two communicate with semi-circular convection tubes 9 respectively, ventilating pit 10 and inlet mouth 15 are arranged on the semi-circular convection tubes 9, burner hearth bottom is provided with to expand with heat and contract with cold adjusts the displacement supporting device synchronously automatically, it is the track 11 that radiation distributes by being installed in burner hearth bottom, be positioned on the track 11, by roller bearing frame 12 be installed in the billy gate that the roller bearing 13 on the roller bearing frame 12 constitutes, and the backing plate of being located between track 11 and the roller bearing 13 14 is formed.
Claims (5)
1, a kind of SCR AC regulating resistor stove, comprise body of heater, the bell that cooperates with body of heater, be arranged on the intravital thermal insulation layer of stove, be installed in the heating unit of inboard wall of furnace body and burner hearth bottom, it is characterized in that body of heater is circular cage format structure, adopt the removable connection of sand seal between each layer body of heater, venting hole is arranged on the bell, in bell and the burner hearth convection tubes is installed, burner hearth bottom is provided with to expand with heat and contract with cold adjusts the displacement supporting device synchronously automatically.
2, asking 1 described SCR AC regulating resistor stove as right, it is characterized in that convection tubes is made up of the three way type convection tubes that is installed in the bell centre and two semi-circular convection tubess being installed in burner hearth bottom, a straight-through burner hearth in the three way type convection tubes, about two communicate with semi-circular convection tubes respectively, ventilating pit and inlet mouth are arranged on the semi-circular convection tubes.
3, SCR AC regulating resistor stove as claimed in claim 1, it is characterized in that expanding with heat and contract with cold synchronously automatically, the displacement supporting device is positioned at the billy gate composition on the track by being installed in the track that burner hearth bottom radially distributes.
4, SCR AC regulating resistor stove as claimed in claim 3 is characterized in that billy gate is made of roller bearing frame and the roller bearing that is installed on the roller bearing frame.
5, SCR AC regulating resistor stove as claimed in claim 4 is characterized in that being provided with backing plate between the roller bearing of track and billy gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228951 CN2328668Y (en) | 1998-06-04 | 1998-06-04 | Silicon controlled rectifier AC voltage regulating resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228951 CN2328668Y (en) | 1998-06-04 | 1998-06-04 | Silicon controlled rectifier AC voltage regulating resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2328668Y true CN2328668Y (en) | 1999-07-14 |
Family
ID=33978947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228951 Expired - Fee Related CN2328668Y (en) | 1998-06-04 | 1998-06-04 | Silicon controlled rectifier AC voltage regulating resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2328668Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574313A (en) * | 2014-06-06 | 2017-04-19 | 日铁住金综合工程株式会社 | Far-infrared multistage heating furnace for hot-pressed steel plate |
-
1998
- 1998-06-04 CN CN 98228951 patent/CN2328668Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574313A (en) * | 2014-06-06 | 2017-04-19 | 日铁住金综合工程株式会社 | Far-infrared multistage heating furnace for hot-pressed steel plate |
| CN106574313B (en) * | 2014-06-06 | 2019-05-28 | 日铁住金综合工程株式会社 | The far infrared wire type multi-layered type heating furnace of hot pressing steel plate |
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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 |