CN212806482U - Tunnel furnace body with independently controlled areas - Google Patents
Tunnel furnace body with independently controlled areas Download PDFInfo
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- CN212806482U CN212806482U CN202021921415.XU CN202021921415U CN212806482U CN 212806482 U CN212806482 U CN 212806482U CN 202021921415 U CN202021921415 U CN 202021921415U CN 212806482 U CN212806482 U CN 212806482U
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Abstract
The utility model relates to a tunnel furnace body of regional independent control, it includes the furnace body that the head and the tail is formed with inlet channel and exit channel, this internal edge work piece direction of delivery that is provided with multiunit heating unit of furnace body is provided with thermal-insulated heat preservation between the adjacent heating unit. The heating unit comprises a plurality of electric heating wires which are connected in series, and the plurality of electric heating wires are uniformly arranged along the conveying direction of the workpiece. This application has the effect that can promote the work piece quality.
Description
Technical Field
The application relates to the field of tunnel furnaces, in particular to a tunnel furnace body with independently controlled areas.
Background
One of the major development directions of the heat treatment production technology is controlled atmosphere heat treatment, and non-oxidation heat treatment is realized by using controlled atmosphere. In the production of less variety and large scale, especially the bright quenching, annealing, carburizing and quenching, carbonitriding quenching and gas carbonitriding of carbon steel and general alloy structural steel parts still use controllable atmosphere as main means.
When the controllable atmosphere heat treatment is carried out, a tunnel furnace is often used, a conveying device in the tunnel furnace conveys workpieces and heats and cools the workpieces, and a plurality of groups of electric heating wires are arranged in one section of the tunnel furnace to heat the workpieces.
In view of the above-mentioned related technologies, the inventors found that the temperature of the workpiece during passing through the tunnel furnace is consistent, and it is difficult to satisfy different heating requirements of some workpieces.
SUMMERY OF THE UTILITY MODEL
In order to realize more heating requirements to the work piece in this internal ability of furnace body, this application provides a tunnel furnace body of regional independent control.
The application provides a tunnel furnace body of regional independent control adopts following technical scheme:
the utility model provides a tunnel furnace body of regional independent control, includes the furnace body that end to end was formed with inlet channel and exit channel, this internal edge work piece direction of delivery that is provided with multiunit heating unit of furnace body is provided with thermal-insulated heat preservation between the adjacent heating unit.
Through adopting above-mentioned technical scheme, can set up multiunit heating element along the direction of delivery of work piece in the furnace body is originally internal, then can carry out the adjustment of different temperatures to the heating element of different groups according to the heating demand of actual work piece, make the work piece can receive the heating of different temperatures when the furnace body is being passed through, and can keep apart the influence of the heat radiation and the thermal convection between the front and back heating element through the thermal-insulated heat preservation that sets up between the adjacent heating element, thereby can carry out temperature control to the heating element more accurately, and then promote the control to work piece heating temperature.
Optionally, the heating unit comprises a plurality of electric heating wires which are connected in series, and the plurality of electric heating wires are uniformly arranged along the conveying direction of the workpiece.
Through adopting above-mentioned technical scheme, make every group heating element can have certain span along work piece direction of delivery in the furnace body is originally internal to play better heating effect to the work piece, also can carry out synchro control to all electric heating wires in every group heating element.
Optionally, a temperature sensor is arranged at the electric heating wire in the middle of each group of heating units, and the temperature sensor controls the on and off of the electric heating wire according to a temperature output signal.
Through adopting above-mentioned technical scheme, usable temperature sensor carries out more accurate temperature control to every electric heating wire of group, and every heating element of group can keep in required temperature range to play more accurate heating effect to the work piece.
Optionally, the heat insulation layer comprises a mounting part connected to the inner wall of the furnace body and parallel to the width direction of the conveying part, and a heat insulation part inserted into the mounting part.
Through adopting above-mentioned technical scheme, promote the installation convenience of thermal-insulated heat preservation piece, can directly peg graft thermal-insulated heat preservation piece in the installed part, also can change or take out or add thermal-insulated heat preservation piece according to actual processing demand simultaneously, adapt to more processing demands.
Optionally, the mounting piece is connected to the inner wall of the furnace body in a sliding manner along the workpiece conveying direction, and a locking piece is arranged between the mounting piece and the furnace body.
Through adopting above-mentioned technical scheme, can change heating element's span according to the size of the product of actual required heating, promote the heating effect to the work piece.
Optionally, the mounting part is provided with an opening at one end, and the heat insulation part is inserted into the mounting part from the opening.
Through adopting above-mentioned technical scheme, make thermal-insulated heat preservation spare change more easily and install, also enable the thermal-insulated heat preservation spare after the installation more stable simultaneously.
Optionally, the heat insulation piece is a high temperature resistant asbestos block.
Through adopting above-mentioned technical scheme, high temperature resistant asbestos piece possesses high temperature resistance, possesses low thermal conductivity simultaneously to play the isolation to between the adjacent heating unit better, make the temperature influence between the adjacent heating unit littleer.
Optionally, the heating units are symmetrically arranged with a central horizontal plane in the vertical direction of the furnace body.
Through adopting above-mentioned technical scheme, can realize the synchronous heating intensification of downside to the work piece to reach better heating effect to the work piece.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the influence of heat radiation and heat convection between the front heating unit and the rear heating unit can be isolated by utilizing the heat insulation layer between the adjacent heating units, so that the workpieces can be heated at different temperatures, and the heating requirements of more workpieces are met;
2. the temperature sensor arranged in each group of heating units can be used for accurately aligning the stepping position of each workpiece with the heating temperature control point, so that the accurate monitoring of the temperature of the workpiece is improved.
Drawings
FIG. 1 is a schematic view of a zone independently controlled tunnel furnace body according to an embodiment of the present application.
Description of reference numerals: 1. a furnace body; 11. an inlet channel; 12. an outlet channel; 2. a heating unit; 21. an electric heating wire; 3. a heat insulation layer; 31. a mounting member; 32. a heat insulating member; 4. a temperature sensor.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses tunnel furnace body of regional independent control.
Example 1
Referring to fig. 1, the tunnel furnace body of the zone independent control includes a furnace body 1 formed with an inlet channel 11 and an outlet channel 12 from head to tail, a plurality of groups of heating units 2 are arranged in the furnace body 1 along a workpiece conveying direction, a heat insulation layer 3 is arranged between adjacent heating units 2, and the influence of heat radiation and heat convection between the front and rear heating units 2 can be isolated by the heat insulation layer 3.
A plurality of heating units 2 are arranged in a furnace body 1, the plurality of heating units 2 are uniformly arranged along the transmission direction of a workpiece, each heating unit 2 comprises a plurality of electric heating wires 21, the lengths of the electric heating wires 21 are parallel to the width direction of the furnace body 1, the plurality of electric heating wires 21 are uniformly arranged along the length direction of the furnace body 1, the plurality of electric heating wires 21 are electrically connected in series, a temperature sensor 4 is arranged at the electric heating wire 21 positioned at the middle position in each group of heating units 2, a detection probe of the temperature sensor 4 is positioned in the furnace body 1, the temperature sensor 4 controls the power supply of each group of heating units 2 to be turned on and off according to a detected temperature output signal, a temperature range required to be heated is preset, and when the temperature detected by the temperature sensor 4 is lower than the set temperature range, the electric heating wires 21 are controlled to be electrified and heated, when the temperature detected by the temperature sensor 4 is higher than the set temperature range, the electric heating wires 21 are controlled to be powered off, the temperature of the workpiece can be accurately monitored by means of the temperature sensor 4, and temperature monitoring and control can be better carried out on each group of heating units 2.
In order to reduce heat radiation and the thermal convection influence between the adjacent heating unit 2, 2 adjacent heating unit all are provided with thermal-insulated heat preservation 3, thermal-insulated heat preservation 3 including connect in 1 inner wall of furnace body and with carry a width direction and be parallel installed part 31, the vertical cross-section of installed part 31 is the U-shaped, it has thermal-insulated heat preservation 32 to peg graft in installed part 31, thermal-insulated heat preservation 32 is made by the insulation material of low thermal conductivity, can select for high temperature resistant asbestos piece. And in order to promote the heating effect to the work piece, heating unit 2 sets up in furnace body 1's upper and lower both sides and in same vertical plane one-to-one, then heating unit 2 personally submits the symmetry setting with the central horizontal plane in the vertical direction of furnace body 1.
The implementation principle of the embodiment 1 is as follows: thermal-insulated heat preservation 32 is pegged graft in installed part 31 between adjacent heating unit 2 and is kept apart the influence of heat radiation and thermal convection between the front and back heating unit 2 to the temperature of 2 intermediate positions departments of every group of heating unit is monitored well according to temperature sensor 4, and can the temperature of every group of heating unit 2 of independent control, thereby can adjust the actual heating temperature of different heating unit 2 according to the heating demand of actual work piece, and let work piece and the heating unit 2 one-to-one on the conveyor.
Example 2
Referring to fig. 1, a tunnel furnace body with independently controlled zones is different from embodiment 1 in that a mounting member 31 is slidably connected to an inner wall of the furnace body 1 along a length direction of the furnace body 1, and a plurality of connection holes are formed in the inner wall of the furnace body 1 along the length direction thereof, and a locking member threadedly connected to the connection holes is disposed on the mounting member 31 so as to fix a position of the mounting member 31, and meanwhile, both ends of an electric heating wire 21 are detachably connected to the inner wall of the furnace body 1 through bolts, so that the number of the electric heating wires 21 can be changed according to actual workpiece heating requirements, and connection between the electric heating wire 21 and the furnace body 1 can be realized by using the connection holes.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a tunnel furnace body of regional independent control, includes furnace body (1) that end to end is formed with inlet channel (11) and exit channel (12), its characterized in that: a plurality of groups of heating units (2) are arranged in the furnace body (1) along the conveying direction of workpieces, and a heat insulation layer (3) is arranged between every two adjacent heating units (2).
2. The zone independent control tunnel furnace body of claim 1, wherein: heating element (2) are established ties including many electric heating wire (21), being between many electric heating wire (21), and many electric heating wire (21) evenly set up along work piece direction of delivery.
3. The zone independent control tunnel furnace body of claim 2, characterized in that: each group of heating units (2) is provided with a temperature sensor (4) at the electric heating wire (21) in the middle position, and the temperature sensor (4) controls the on-off of the electric heating wire (21) according to a temperature output signal.
4. The zone independent control tunnel furnace body of claim 1, wherein: the heat insulation layer (3) comprises a mounting piece (31) which is connected to the inner wall of the furnace body (1) and is parallel to the width direction of the conveying piece, and a heat insulation piece (32) which is inserted into the mounting piece (31).
5. The zone independent control tunnel furnace body of claim 4, characterized in that: the mounting piece (31) is connected to the inner wall of the furnace body (1) in a sliding mode along the workpiece conveying direction, and a locking piece is arranged between the mounting piece (31) and the furnace body (1).
6. The zone independent control tunnel furnace body of claim 4, characterized in that: the mounting piece (31) is arranged with an opening at one end, and the heat insulation piece (32) is inserted into the mounting piece (31) from the opening.
7. The zone independent control tunnel furnace body of claim 4, characterized in that: the heat insulation and preservation piece (32) is a high temperature resistant asbestos block.
8. The zone independent control tunnel furnace body of claim 1, wherein: the heating units (2) are symmetrically arranged with the central horizontal plane in the vertical direction of the furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921415.XU CN212806482U (en) | 2020-09-04 | 2020-09-04 | Tunnel furnace body with independently controlled areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021921415.XU CN212806482U (en) | 2020-09-04 | 2020-09-04 | Tunnel furnace body with independently controlled areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212806482U true CN212806482U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021921415.XU Active CN212806482U (en) | 2020-09-04 | 2020-09-04 | Tunnel furnace body with independently controlled areas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212806482U (en) |
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2020
- 2020-09-04 CN CN202021921415.XU patent/CN212806482U/en active Active
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