CN211771458U - External circulation heating tempering furnace - Google Patents
External circulation heating tempering furnace Download PDFInfo
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- CN211771458U CN211771458U CN202020260083.9U CN202020260083U CN211771458U CN 211771458 U CN211771458 U CN 211771458U CN 202020260083 U CN202020260083 U CN 202020260083U CN 211771458 U CN211771458 U CN 211771458U
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Abstract
The utility model discloses an external circulation heating tempering furnace, including furnace body, centrifugal thermal cycle fan, top, bottom of furnace body respectively with external circulation tuber pipe, external circulation tuber pipe intercommunication down, external circulation tuber pipe on, be connected with the heating cabinet under external between the circulation tuber pipe, the circulation tuber pipe intercommunication forms the air current circulation passageway under external, the centrifugal thermal cycle fan drives the gaseous flow of air current circulation passageway in the heating cabinet, the furnace body, external circulation tuber pipe, heating cabinet and external circulation tuber pipe intercommunication down. The utility model discloses the air current circulation is good, and the furnace temperature is even, and rate of heating is fast, is favorable to reducing the furnace body width, further improves the homogeneity of heating, and the circulating hot air of tempering furnace each subregion can not exert an influence each other.
Description
Technical Field
The utility model relates to a heat treatment device, in particular to an external circulation heating tempering furnace.
Background
At present, the heat transfer mode of the traditional continuous medium-low temperature tempering furnace is mainly a convection mode, and the heat treatment tempering furnace adopts a heating mode of furnace built-in muffle circulating air guide, so that certain limitations and defects exist:
1. the traditional continuous tempering furnace has poor air guide effect in an internal circulation heating mode, and the uniformity of the furnace temperature cannot meet the use requirements of various working conditions;
2. the heating speed of the traditional heating mode of the built-in muffle circulating air guide is relatively low;
3. the traditional tempering furnace is not suitable for the tempering requirement of large furnace burden, and the built-in muffle circulating air guide can widen the furnace body and further influence the uniformity of the furnace temperature;
4. circulating hot air in each partition of the traditional tempering furnace is easy to mutually influence.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an external circulation heating tempering furnace, the device do benefit to and reduce the furnace body width, and the air current flows through, and the heating is even, and rate of heating is fast.
In order to solve the above technical problem, the utility model discloses a following technical means:
the utility model provides an external circulation heating tempering furnace, includes the furnace body, centrifugal thermal cycle fan, top, the bottom of furnace body respectively with external circulation tuber pipe, external circulation tuber pipe intercommunication down, external circulation tuber pipe down between be connected with the heating cabinet, be equipped with heating element in the heating cabinet, furnace body, external circulation tuber pipe, heating cabinet and external circulation tuber pipe intercommunication down form the air current circulation passageway on, centrifugal thermal cycle fan drives the flow of the gas of air current circulation passageway.
By arranging the external upper circulating air pipe, the external lower circulating air pipe and the heating box, firstly, a circulating channel is formed by the external circulation and the furnace body, the air flow circulation is good, the problems of poor air guide effect and non-uniform furnace temperature in an internal circulation heating mode are solved, and secondly, the problem of low heating speed of the internal muffle circulating air guide is solved by heating the circulating air flow by using the arranged heating box; thirdly, the problem that furnace body broadening influences furnace temperature uniformity due to built-in muffle circulating air guide is solved, fourthly, circulating air in the furnace flows in a single direction, and the problem that circulating hot air of each partition of a traditional tempering furnace is easy to influence each other is solved.
The further preferred technical scheme is as follows:
the external upper circulating air pipe is communicated with the top of the furnace body through a centrifugal heat circulating fan.
The centrifugal heat circulating fan is arranged at the top of the furnace body, and circulation of airflow in the furnace is utilized.
The top of the furnace body is provided with an adjustable air distribution plate and an upper fixed air distribution plate, the adjustable air distribution plate is arranged above the upper fixed air distribution plate, and the bottom of the furnace body is provided with a lower fixed air distribution plate.
Through the arrangement, the airflow disturbance in the furnace is fully increased, and the temperature in the furnace is more uniform.
The external lower circulating air pipe is provided with a lower air pipe ash cleaning opening.
Through setting up down tuber pipe deashing mouth, be favorable to in time clearing up the particle impurity in the circulation process.
The bottom of the heating box is provided with a heating box cleaning port.
Through setting up the heating cabinet clearance mouth, be favorable to further in time clearing up the particle impurity among the circulation process.
And the external upper circulating air pipe, the external lower circulating air pipe and the heating box are coated with heat-insulating material layers.
Through the cladding with insulating material layer, can reduce heat loss.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: 1-centrifugal heat cycle fan; 2-external upper circulating air pipe; 3-heating the box; 4-a heating element; 5-external lower circulating air pipe; 6-adjustable air distribution plate; 7-fixing an air distribution plate; 8-lower fixed air distribution plate; 9-ash removal opening of the downdraft pipe; 10-heating box cleaning port.
Detailed Description
The present invention will be further described with reference to the following examples.
Referring to fig. 1, the external circulation heating tempering furnace of the present invention comprises a furnace body, a centrifugal heat circulation fan 1, an external upper circulation air pipe 2, an external lower circulation air pipe 5 and a heating box 3; the top and the bottom of the furnace body are respectively communicated with an external upper circulating air pipe 2 and an external lower circulating air pipe 5, a heating box 3 is connected between the external upper circulating air pipe 2 and the external lower circulating air pipe 5, a heating element 4 is arranged in the heating box 3, the furnace body, the external upper circulating air pipe 2, the heating box 3 and the external lower circulating air pipe 5 are communicated to form an air flow circulating channel, and the centrifugal heat circulating fan 1 drives the air of the air flow circulating channel to flow.
By arranging the external upper circulating air pipe 2, the external lower circulating air pipe 5 and the heating box 3, firstly, a circulating channel is formed by the external circulation and the furnace body, the air flow circulation is good, the problems of poor air guide effect and uneven furnace temperature of an internal circulation heating form are solved, and secondly, the problem of low heating speed of the internal muffle circulating air guide is solved by heating the circulating air flow by using the arranged heating box; thirdly, the problem that furnace body broadening influences furnace temperature uniformity due to built-in muffle circulating air guide is solved, fourthly, circulating air in the furnace flows in a single direction, and the problem that circulating hot air of each partition of a traditional tempering furnace is easy to influence each other is solved.
The external upper circulating air pipe 2 is communicated with the top of the furnace body through a centrifugal heat circulating fan 1.
The centrifugal heat circulating fan 1 is arranged at the top of the furnace body, and circulation of airflow in the furnace is utilized.
The top of the furnace body is provided with an adjustable air distribution plate 6 and an upper fixed air distribution plate 7, the adjustable air distribution plate 6 is arranged above the upper fixed air distribution plate 7, and the bottom of the furnace body is provided with a lower fixed air distribution plate 8.
Through the arrangement, the airflow disturbance in the furnace is fully increased, and the temperature in the furnace is more uniform.
The external lower circulating air pipe 5 is provided with a lower air pipe ash cleaning opening 10.
Through setting up down tuber pipe deashing mouth 10, be favorable to in time clearing up the particle impurity in the circulation process.
The bottom end of the heating box 3 is provided with a heating box cleaning opening 10.
Through setting up heating cabinet clearance mouth 10, be favorable to further in time clearing up the particle impurity in the circulation process.
The external upper circulating air pipe 2, the external lower circulating air pipe 5 and the heating box 3 are all coated with heat-insulating material layers.
Through the cladding with insulating material layer, can reduce heat loss.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (6)
1. The utility model provides an external circulation heating tempering furnace, includes the furnace body, centrifugal thermal cycle fan, its characterized in that: the top and the bottom of the furnace body are respectively communicated with the external upper circulating air pipe and the external lower circulating air pipe, a heating box is connected between the external upper circulating air pipe and the external lower circulating air pipe, a heating element is arranged in the heating box, the furnace body, the external upper circulating air pipe, the heating box and the external lower circulating air pipe are communicated to form an air flow circulating channel, and the centrifugal heat circulating fan drives the air of the air flow circulating channel to flow.
2. The external circulation heating tempering furnace of claim 1, wherein: the external upper circulating air pipe is communicated with the top of the furnace body through a centrifugal heat circulating fan.
3. The external circulation heating tempering furnace of claim 1, wherein: the top of the furnace body is provided with an adjustable air distribution plate and an upper fixed air distribution plate, the adjustable air distribution plate is arranged above the upper fixed air distribution plate, and the bottom of the furnace body is provided with a lower fixed air distribution plate.
4. The external circulation heating tempering furnace of claim 1, wherein: the external lower circulating air pipe is provided with a lower air pipe ash cleaning opening.
5. The external circulation heating tempering furnace of claim 1, wherein: the bottom of the heating box is provided with a heating box cleaning port.
6. The external circulation heating tempering furnace of claim 1, wherein: and the external upper circulating air pipe, the external lower circulating air pipe and the heating box are coated with heat-insulating material layers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922316778 | 2019-12-21 | ||
| CN2019223167784 | 2019-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211771458U true CN211771458U (en) | 2020-10-27 |
Family
ID=72902966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020260083.9U Active CN211771458U (en) | 2019-12-21 | 2020-03-05 | External circulation heating tempering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211771458U (en) |
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2020
- 2020-03-05 CN CN202020260083.9U patent/CN211771458U/en active Active
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