CN206408283U - A kind of pulsed discharge Catalytic Cyanation stove - Google Patents
A kind of pulsed discharge Catalytic Cyanation stove Download PDFInfo
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- CN206408283U CN206408283U CN201621263008.8U CN201621263008U CN206408283U CN 206408283 U CN206408283 U CN 206408283U CN 201621263008 U CN201621263008 U CN 201621263008U CN 206408283 U CN206408283 U CN 206408283U
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- furnace body
- inner furnace
- discharge
- sparking electrode
- heater
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Abstract
The utility model discloses a kind of pulsed discharge Catalytic Cyanation stove, including：Body of heater, bell, air supply system, sparking electrode and heat recovery system；The body of heater includes external furnace body and inner furnace body, and the external furnace body is weldingly fixed on outside the side of inner furnace body and bottom surface, is left between external furnace body and inner furnace body and set vacuum tube joint on sealed cavity, external furnace body；The air supply system connects air inlet, and the air inlet has two, is symmetrically arranged at the medium position of inner furnace body, and inlet charge direction is perpendicular to plane where sparking electrode；The heat recovery system includes：Gas skirt, discharge, plate type heat exchanger and air pump, the gas skirt are built in the top and bottom of inner furnace body respectively, and gas skirt is connected with discharge, and discharge is connected to plate type heat exchanger.The utility model can reduce thermal loss, reduce energy consumption, and be effectively ensured that the thickness of workpiece surface cyanided case is uniform, and surface quality is more excellent.
Description
Technical field
The utility model is related to thermo-chemical treatment field, specifically a kind of pulsed discharge Catalytic Cyanation stove.
Background technology
Cyaniding is also referred to as carbo-nitriding, is to the top layer of steel while penetrating into the process of carbon and nitrogen, middle temperature dry cyaniding
Main purpose be to improve the hardness of steel, wearability and fatigue strength, cryogenic gas nitrocarburizing is based on nitriding, its main mesh
Be improve steel wearability and seizure resistance, at present with middle temperature dry cyaniding and cryogenic gas nitrocarburizing（That is gas
Tufftride）Using wider.The process of current carbo-nitriding mainly includes gas method and salt bath process, dry cyaniding medium
It is the gaseous mixture of carburizer and nitriding medium, for example, drips kerosene (or ethanol, acetone), logical ammonia；Drink and add in neither endothermic nor exothermic type gas
High carbon potential enriched gas and logical ammonia；Triethanolamine or the alcohol continuous drip for dissolving in urea.
Carbo-nitriding is carried out using furnace of cyanidation, by workpiece heat to austenitic temperature, and is incubated enough time, is made medium gas
Carbon and nitrogen atoms in body are penetrated into workpiece surface, obtain the workpiece of the carbon containing nitrogen in top layer.In furnace of cyanidation, due to furnace high-temperature, it is situated between
Matter gas produces thermal agitation in stove, and rises, accumulates in furnace roof position, causes dielectric gas skewness in stove, workpiece
The thickness of case-carbonizing layer is also uneven, influences cyaniding effect.
In a kind of Impulsive discharge catalyzed chemical heat treatment that number of patent application is 2005200925738, electricity is utilized
Pulse carries out nitriding, and nitrogenous gas is circulated in stove by the circulatory system, has the advantages that nitriding is fast, but due to being situated between
Matter gas from top to bottom flows and is ionized, and nitrogen atom content is lower in more downward gas, still results in workpiece surface nitriding
The phenomenon being gradually reduced above and below the appearance of thickness degree, it is more obvious particularly with plate workpiece, in addition, dielectric gas flow velocity is quickly,
Therefore need the circulation long period could nitriding it is complete, it is inefficient.
The content of the invention
The purpose of this utility model is to provide a kind of pulsed discharge Catalytic Cyanation stove, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical scheme：
A kind of pulsed discharge Catalytic Cyanation stove, including：Body of heater, bell, air supply system, sparking electrode and recuperation of heat system
System, the bell is arranged on above body of heater；The body of heater includes external furnace body and inner furnace body, and the external furnace body is welded and fixed in interior stove
Outside the side and bottom surface of body, left between external furnace body and inner furnace body and vacuum tube joint is set on sealed cavity, external furnace body；It is described to put
Electrode is made up of some discharging rods, and sparking electrode includes left electrode and right electrode, and the left and right two of inner furnace body is built in respectively
Side, sparking electrode connects the pulse power respectively；The air supply system connects air inlet, and the air inlet has two, right respectively
Claim the medium position for being arranged on inner furnace body, and inlet charge direction is perpendicular to plane where sparking electrode；The recuperation of heat system
System includes：Gas skirt, discharge, plate type heat exchanger and air pump, the gas skirt are built in the top and bottom of inner furnace body respectively
Portion, gas skirt is connected with discharge, and discharge is connected to plate type heat exchanger, and plate type heat exchanger is connected with air pump.
It is used as further program of the utility model：Built-in exchange heater is set on the inwall of the inner furnace body.
It is used as further program of the utility model：The inner furnace body using micropore heat insulation it is brick into.
It is used as further program of the utility model：The discharge outer cladding one layer of heat preservation cotton.
Compared with prior art, the beneficial effects of the utility model are：Furnace of cyanidation has good guarantor in the utility model
Warm nature energy, can reduce thermal loss, reduce energy consumption, and symmetrically be passed through dielectric gas using from body of heater both sides, and from furnace roof and
The mode that furnace bottom is sobbed simultaneously, compared with prior art, can effectively ensure that the thickness of workpiece surface cyanided case is uniform, surface quality
It is more excellent.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of pulsed discharge Catalytic Cyanation stove, including：Body of heater, bell 1,
Air supply system 5, sparking electrode and heat recovery system, the bell 1 are arranged on above body of heater；The body of heater includes external furnace body 21
With inner furnace body 22, the external furnace body 21 is weldingly fixed on outside the side of inner furnace body 22 and bottom surface, between external furnace body 21 and inner furnace body 22
Setting vacuum tube joint 6 on sealed cavity 3, external furnace body 21 is left, for connecting vaccum-pumping equipment, will be vacuumized in cavity 3,
The heat insulating ability prevented in air conduction, inner furnace body 22 is strengthened；The sparking electrode is made up of some discharging rods, sparking electrode bag
Left electrode 41 and right electrode 42 are included, the left and right sides of inner furnace body 22 is built in respectively, sparking electrode connects the pulse power respectively；Institute
The connection air inlet 7 of air supply system 5 is stated, the air inlet 7 has two, is symmetrically arranged at the medium position of inner furnace body 22,
And the airintake direction of air inlet 7 is perpendicular to plane where sparking electrode, the dielectric gas containing carbon and nitrogen atoms（Contain propane, ammonia
Mixed gas）Enter inner furnace body 22 from air inlet pipe 7, and through the slit of setting in the middle part of sparking electrode, blow to workpiece, pulse electricity
Source output HIGH voltage, makes generation forceful electric power between left electrode 41 and right electrode 42 leave the theatre, triggers the rapid ionic discharge of dielectric gas, carbon is former
Son and nitrogen-atoms penetrate at a high speed workpiece, because dielectric gas is entered from workpiece both sides, and is in symmetric position with sparking electrode,
Therefore it can ensure that workpiece is surrounded by uniform dielectric gas, the thickness of carburizing or nitrogen layer is more uniform；The heat recovery system bag
Include：Gas skirt 9, discharge 10, plate type heat exchanger 11 and air pump 12, the gas skirt 9 are built in the top of inner furnace body 22 respectively
Portion and bottom, gas skirt 9 are connected with discharge 10, and discharge 10 is connected to plate type heat exchanger 11, plate type heat exchanger 11 with
Air pump 12 is connected, and air pump 12 extracts gas out of inner furnace body 22 out, and enters in plate type heat exchanger 11, and plate type heat exchanger 11 is by gas
Heat recovery in body, reduces heat waste.
Built-in exchange heater 8 is set on the inwall of the inner furnace body 22, temperature in inner furnace body 22 Austria can be heated to
Family name's temperature area.
The inner furnace body 22 is brick into very strong heat insulating ability and heat resistance using micropore heat insulation.
The outer cladding one layer of heat preservation cotton of discharge 10, reduces gas heat and is scattered and disappeared from discharge 10.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of pulsed discharge Catalytic Cyanation stove, including：Body of heater, bell, air supply system, sparking electrode and heat recovery system,
The bell is arranged on above body of heater；It is characterized in that：The body of heater includes external furnace body and inner furnace body, and the external furnace body welding is solid
It is scheduled on outside the side of inner furnace body and bottom surface, is left between external furnace body and inner furnace body and set vacuum tube to connect on sealed cavity, external furnace body
Head；The sparking electrode is made up of some discharging rods, and sparking electrode includes left electrode and right electrode, and inner furnace body is built in respectively
The left and right sides, sparking electrode connects the pulse power respectively；The air supply system connects air inlet, and the air inlet has two
It is individual, the medium position of inner furnace body is symmetrically arranged at, and inlet charge direction is perpendicular to plane where sparking electrode；It is described
Heat recovery system includes：Gas skirt, discharge, plate type heat exchanger and air pump, the gas skirt are built in inner furnace body respectively
Top and bottom, gas skirt is connected with discharge, and discharge is connected to plate type heat exchanger, and plate type heat exchanger connects with air pump
Connect.
2. a kind of pulsed discharge Catalytic Cyanation stove according to claim 1, it is characterised in that：On the inwall of the inner furnace body
Built-in exchange heater is set.
3. a kind of pulsed discharge Catalytic Cyanation stove according to claim 1 or 2, it is characterised in that：The inner furnace body is used
Micropore heat insulation it is brick into.
4. a kind of pulsed discharge Catalytic Cyanation stove according to claim 1, it is characterised in that：The discharge outer cladding one
Layer heat-preservation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263008.8U CN206408283U (en) | 2016-11-24 | 2016-11-24 | A kind of pulsed discharge Catalytic Cyanation stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263008.8U CN206408283U (en) | 2016-11-24 | 2016-11-24 | A kind of pulsed discharge Catalytic Cyanation stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206408283U true CN206408283U (en) | 2017-08-15 |
Family
ID=59549362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621263008.8U Expired - Fee Related CN206408283U (en) | 2016-11-24 | 2016-11-24 | A kind of pulsed discharge Catalytic Cyanation stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206408283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188005A (en) * | 2020-02-15 | 2020-05-22 | 江苏益科热处理设备有限公司 | Energy-saving carburizing and quenching multipurpose furnace rear chamber circulating flow guide temperature control system |
-
2016
- 2016-11-24 CN CN201621263008.8U patent/CN206408283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188005A (en) * | 2020-02-15 | 2020-05-22 | 江苏益科热处理设备有限公司 | Energy-saving carburizing and quenching multipurpose furnace rear chamber circulating flow guide temperature control system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20181124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |