CN207619513U - A kind of well formula nitriding furnace - Google Patents
A kind of well formula nitriding furnace Download PDFInfo
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- CN207619513U CN207619513U CN201721735621.XU CN201721735621U CN207619513U CN 207619513 U CN207619513 U CN 207619513U CN 201721735621 U CN201721735621 U CN 201721735621U CN 207619513 U CN207619513 U CN 207619513U
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- flue
- ventilating duct
- furnace
- nitriding
- furnace body
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Abstract
The utility model discloses a kind of well formula nitriding furnaces,Including furnace body,Flue,Ventilating duct,Recycle flabellum,Driving motor,Electrical heating elements,Spiral heat conducting element and air blower,Furnace interior has accommodating cavity,Accommodating cavity madial wall is connected with electrical heating elements,Flue is installed in accommodating cavity,Spiral heat conducting element is helically wound around outside flue,Electrical heating elements,Spiral heat conducting element,Flue connects and forms spiral shape cold air duct between three successively from outside to inside,The air outlet that air blower has is connected to spiral shape cold air duct lower end,Sidewall of the furnace body upper end blow vent,Lower open mouth on ventilating duct,Ventilating duct coaxial package is inside flue,Nitriding gas channel is formed between ventilating duct and flue,Driving motor is installed at the top of furnace body,Cycle flabellum of the driving motor driving positioned at ventilating duct inner top,Nitriding gas air inlet and nitriding gas gas outlet are equipped at the top of furnace body；The utility model is conducive to improve the mobility of nitriding gas.
Description
Technical field
The utility model belongs to technical field of heat treatment equipment, is specifically related to a kind of well formula nitriding furnace.
Background technology
Well formula gas nitriding furnace is mainly used for the gas nitriding of the workpiece such as carbon steel part；Workpiece after nitriding process,
In order to improve the utilization rate of equipment, workpiece should be cooled to the temperature that can be come out of the stove for about 560 DEG C as soon as possible from technological temperature：It is approximately less than
100℃；For existing well formula nitriding furnace in nitridation, nitriding gas poor fluidity causes the thickness of workpiece nitration case inconsistent.
Invention content
In view of this, the purpose of this utility model is to provide a kind of well formula nitriding furnace, formed by ventilating duct and flue
Nitriding gas channel drives cycle flabellum by driving motor, forms negative pressure inside ventilating duct so that nitriding gas is in nitridation gas
Body moves from top to bottom in channel, then enters inside ventilating duct from ventilating duct bottom, rises along ventilating duct and from ventilating duct
End returns in nitriding gas channel, in cycles so that nitriding gas constantly circulates.
In order to achieve the above object, a kind of well formula nitriding furnace of the utility model, including furnace body, flue, ventilating duct, circulation fan
Leaf, driving motor, electrical heating elements, spiral heat conducting element and air blower, the furnace interior have accommodating cavity, house cavity
Madial wall is connected with electrical heating elements, and flue is installed in accommodating cavity, and spiral heat conducting element is helically wound around outside flue, electricity
Heating element, spiral heat conducting element, flue connect and form spiral shape cold air duct, drum between three successively from outside to inside
The air outlet that wind turbine has is connected to across sidewall of the furnace body lower end with spiral shape cold air duct lower end, and sidewall of the furnace body upper end is equipped with and spiral shell
Revolve the blow vent of shape cold air duct upper end connection, lower open mouth on ventilating duct, ventilating duct coaxial package is inside flue and the two is logical
Holder connection is crossed, ventilating duct upper end is less than flue upper end, and ventilating duct lower end is higher than flue lower end, has between ventilating duct and flue
Gap simultaneously forms nitriding gas channel, and driving motor is equipped at the top of furnace body, and there is driving motor shaft, shaft lower end to pass through stove
It is stretched into inside flue at the top of body, shaft lower end is connect with the cycle flabellum positioned at ventilating duct inner top, and nitridation is equipped at the top of furnace body
Gas inlet and nitriding gas gas outlet, nitriding gas air inlet and nitriding gas gas outlet are connected to nitriding gas channel.
Further, the spiral heat conducting element extends to flue lower end from flue upper end.
Further, the spiral heat conducting element is spiral metal band.
Further, the electrical heating elements are resistance band.
Further, the gap width between the wind-guiding bucket and inner furnace is 100~125mm.
The beneficial effects of the utility model are：
1. a kind of well formula nitriding furnace of the utility model is conducive to improve the mobility of nitriding gas, ensure workpiece nitration case
Consistency of thickness；Nitriding gas is inputted into nitriding gas channel by nitriding gas air inlet, driving motor driving recycles flabellum,
Negative pressure is formed inside ventilating duct so that nitriding gas moves from top to bottom in nitriding gas channel, then from ventilating duct bottom
Into inside ventilating duct, rise along ventilating duct and returned in nitriding gas channel from ventilating duct upper end, in cycles so that nitridation
Gas constantly circulates.
2. a kind of well formula nitriding furnace of the utility model advantageously reduces thermal loss；In heating process, pass through electrical heating member
Part generates heat, and heat is directly transferred to flue by spiral heat conducting element, greatly reduces thermal loss；On the other hand, cooling
In the process, air blower transporting cold wind, spiral shape cold air duct can enhance the time that cold wind rests in furnace body, increase heat exchange effect
Rate.
3. a kind of well formula nitriding furnace uniform heat distribution of the utility model, substantially increases the nitridation quality of workpiece；Spiral
Heat conducting element extends to flue lower end from flue upper end, in heating process, can the heat that electrical heating elements generate be passed through spiral shell
Rotation heat conducting element is directly transferred to the entire side of flue；On the other hand, in cooling procedure, the cold wind of air blower conveying is along spiral shape
Cold air duct moves, and is exported from blow vent after bypassing the entire side of flue in a helical pattern.
4. spiral heat conducting element described in a kind of well formula nitriding furnace of the utility model is spiral metal band, thickness is small, quality
Gently, spiral shape cold air duct size can be maximumlly designed, ensures that ventilation is smooth.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is a kind of structural schematic diagram of well formula nitriding furnace of the utility model；
Reference numeral：1- furnace bodies；2- flues；3- ventilating ducts；4- recycles flabellum；5- driving motors；6- electrical heating elements；7-
Spiral heat conducting element；8- air blowers；9- houses cavity；10- spiral shape cold air ducts；11- blow vents；12- nitriding gas air inlets
Mouthful；13- nitriding gas gas outlet；14- nitriding gas channel.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1；A kind of well formula nitriding furnace of the utility model, including furnace body 1, flue 2, ventilating duct 3, cycle flabellum 4,
Driving motor 5, electrical heating elements 6, spiral heat conducting element 7 and air blower 8；1 inside of furnace body has accommodating cavity 9, houses cavity 9
Madial wall is connected with electrical heating elements 6, it is preferable that electrical heating elements 6 be resistance band, resistance band can by ceramic screw bar with
The 9 madial wall connection of accommodating cavity；Flue 2 is installed in accommodating cavity 9；Spiral heat conducting element 7 is helically wound around outside flue 2,
Preferably, spiral heat conducting element 7 extends to 2 lower end of flue from 2 upper end of flue, it is preferable that spiral heat conducting element 7 is spiral metal
Band；Electrical heating elements 6, spiral heat conducting element 7, flue 2 connect successively from outside to inside and formation spiral shape is cold between three
Wind channel 10；The air outlet that air blower 8 has is connected to across 1 side wall lower ends of furnace body with 10 lower end of spiral shape cold air duct；Furnace body 1
Sidewall upper is equipped with the blow vent 11 being connected to 10 upper end of spiral shape cold air duct；Lower open mouth on ventilating duct 3, ventilating duct 3 are coaxial
It is set in 2 inside of flue and the two is connected by holder, 3 upper end of ventilating duct is less than 2 upper end of flue, and 3 lower end of ventilating duct is higher than stove
2 lower end of courage；There is gap between ventilating duct 3 and flue 2 and form nitriding gas channel 14, it is preferable that wind-guiding bucket and inner furnace 2
Between gap width be 100~125mm；The top of furnace body 1 is equipped with driving motor 5, and driving motor 5 has a shaft, under shaft
End is stretched into across 1 top of furnace body inside flue 2, and shaft lower end is connect with the cycle flabellum 4 positioned at 3 inner top of ventilating duct, furnace body 1
Top is equipped with nitriding gas air inlet 12 and nitriding gas gas outlet 13, nitriding gas air inlet 12 and nitriding gas gas outlet 13
It is connected to nitriding gas channel 14.
The principle of present embodiment：Nitridation process is inputted by nitriding gas air inlet 12 into nitriding gas channel 14
Nitriding gas；The driving cycle flabellum 4 of driving motor 5, at this point, 3 inside of ventilating duct forms negative pressure so that nitriding gas is in nitridation gas
It moves in body channel 14, then enters inside ventilating duct 3 from 3 bottom of ventilating duct from top to bottom, rise along ventilating duct 3 and from wind-guiding
3 upper ends of cylinder return in nitriding gas channel 14, in cycles so that nitriding gas constantly circulates；In heating process, pass through
Electrical heating elements 6 generate heat, and heat is directly transferred to flue 2 by spiral heat conducting element 7；In cooling procedure, air blower 8 is defeated
The cold wind sent is moved along spiral shape cold air duct 10, is exported from blow vent 11 after bypassing 2 entire side of flue in a helical pattern.
Finally illustrate, preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can in the form and details make it various changes, without departing from the utility model claims book institute
The range of restriction.
Claims (5)
1. a kind of well formula nitriding furnace, it is characterised in that：Including furnace body, flue, ventilating duct, cycle flabellum, driving motor, electrical heating
There is accommodating cavity, accommodating cavity madial wall to be connected with electrical heating for element, spiral heat conducting element and air blower, the furnace interior
Element, flue are installed in accommodating cavity, and spiral heat conducting element is helically wound around outside flue, electrical heating elements, spiral heat conduction
Element, flue connect and form spiral shape cold air duct, the air outlet that air blower has between three successively from outside to inside
It is connected to spiral shape cold air duct lower end across sidewall of the furnace body lower end, sidewall of the furnace body upper end is equipped with and spiral shape cold air duct upper end
The blow vent of connection, lower open mouth on ventilating duct, ventilating duct coaxial package is inside flue and the two is connected by holder, ventilating duct
Upper end is less than flue upper end, and ventilating duct lower end is higher than flue lower end, has gap between ventilating duct and flue and forms nitridation gas
Body channel, furnace body top are equipped with driving motor, and driving motor has shaft, and shaft lower end, which passes through, to be stretched at the top of furnace body in flue
Portion, shaft lower end are connect with the cycle flabellum positioned at ventilating duct inner top, and nitriding gas air inlet and nitridation are equipped at the top of furnace body
Gas outlet, nitriding gas air inlet and nitriding gas gas outlet are connected to nitriding gas channel.
2. a kind of well formula nitriding furnace as described in claim 1, it is characterised in that：The spiral heat conducting element prolongs from flue upper end
Extend to flue lower end.
3. a kind of well formula nitriding furnace as described in claim 1, it is characterised in that：Spiral heat conducting element is spiral metal band.
4. such as a kind of well formula nitriding furnace of claims 1 to 3 any one of them, it is characterised in that：The electrical heating elements are electricity
Stopband.
5. such as a kind of well formula nitriding furnace of claims 1 to 3 any one of them, it is characterised in that：The ventilating duct and inner furnace
Between gap width be 100~125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735621.XU CN207619513U (en) | 2017-12-13 | 2017-12-13 | A kind of well formula nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735621.XU CN207619513U (en) | 2017-12-13 | 2017-12-13 | A kind of well formula nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619513U true CN207619513U (en) | 2018-07-17 |
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ID=62823694
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721735621.XU Active CN207619513U (en) | 2017-12-13 | 2017-12-13 | A kind of well formula nitriding furnace |
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| CN (1) | CN207619513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747429A (en) * | 2019-10-29 | 2020-02-04 | 徐州鼎元机械有限公司 | Automobile spare and accessory part's nitrogenize equipment |
-
2017
- 2017-12-13 CN CN201721735621.XU patent/CN207619513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747429A (en) * | 2019-10-29 | 2020-02-04 | 徐州鼎元机械有限公司 | Automobile spare and accessory part's nitrogenize equipment |
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