CN106500503A - Multifunction vacuum furnace - Google Patents
Multifunction vacuum furnace Download PDFInfo
- Publication number
- CN106500503A CN106500503A CN201611214413.5A CN201611214413A CN106500503A CN 106500503 A CN106500503 A CN 106500503A CN 201611214413 A CN201611214413 A CN 201611214413A CN 106500503 A CN106500503 A CN 106500503A
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- Prior art keywords
- air door
- cooling
- furnace shell
- heating
- vacuum
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
Multifunction vacuum furnace, it is characterized in that the front left and right air door of chamber body front portion setting activity, rear left and right commutation air door is symmetrically installed at heating outdoor, air channel end, each air door cylinder is outside furnace shell, cylinder piston rod is connected with air door bearing pin through furnace shell by sealing structure；When advantage is to heat, air door closed by front left and right air door, without passage, it is to avoid energy loss in heating process, energy-conservation, while ensureing heating evenly；In cooling, front left and right air door opens wide that amplitude is big, while rear left and right air door can commutate, i.e. inside and outside heating chamber, the alternately commutation flowing of left and right, commutating period can set air-flow, and such workpiece cooling is uniform, improves rate of cooling, shortens and come out of the stove the time.Solve the problems, such as to affect production efficiency to be preferably minimized energy consumption, properties of product are higher, improve production efficiency.
Description
Technical field
The present invention relates to sintering, the vacuum equipment in Technology for Heating Processing, it is a kind of energy-conservation, the Multifunction vacuum furnace of environmental protection.
Background technology
As the discharge standard of the shortage and environmental protection of the energy is improved, the requirement more and more higher to energy-conserving and environment-protective vacuum equipment,
Domestic at present have high energy consumption, production effect in sintering, heat treatment, the such as vacuum equipment used in the techniques such as annealing, tempering, soldering
Rate is low, and workpiece needs heating and thermal insulation time length or improves heating-up temperature, and to reach temperature consistency, cooling gas traffic direction is single
Problem：As cooling gas are entered by heating chamber surrounding nozzle, flow out from housing front and back ends screen, or cooling gas by above entering, after
Face goes out, and during such vacuum equipment makes product cooling, workpiece temperature is inconsistent, and rate of cooling is slow, affects properties of product.
Content of the invention
It is an object of the invention to provide a kind of Multifunction vacuum furnace, realize high efficiency in material sintering and Technology for Heating Processing,
Low power consumption equipment.
The Multifunction vacuum furnace of the present invention, including furnace shell, heating chamber, vacuum system, cooling system, PLC Based Intelligent Controls system
System, it is characterised in that the front left and right air door of chamber body front portion setting activity, movable air door frame forward end are hinged and are adding
On the wall of hot cell both sides, rear left and right commutation air door is symmetrically installed at the outdoor rear portion of heating, air channel end, each air door cylinder is installed
Furnace shell is outer, cylinder piston rod is connected with air door bearing pin through furnace shell by sealing structure, by air door air cylinder driven air door, realization
Cooling gas commutate；Program robot control system(RCS) is arranged by work flow：Vacuum system is opened, to evacuating in furnace shell；Work as vacuum
When degree reaches heating requirements, begin to warm up, front right air door, front left air door, rear left air door, rear right air door are closed；Heating schedule is tied
Shu Hou, starts inflation cooling, while front right air door and front left air door are opened, reaches cooling setpoint pressure in stove, and blower fan is opened automatically
Dynamic, while rear left air door and rear right air door alternating open or close air channel, realize that cooling air-flow or so commutates, be cooled to setting temperature
When spending, enabling feeding, whole process operation terminate.
The advantage of vacuum drying oven of the present invention essentially consists in heating chamber or so with movable air door, and during heating, front left and right air door is closed
Air door is closed, without passage, it is to avoid energy loss in heating process, energy-conservation, while ensure heating evenly；In cooling
When, front left and right air door is opened, and it is big to open wide amplitude, while rear left and right air door can be commutated, i.e., air-flow inside and outside heating chamber,
Left and right alternately commutation flowing, commutating period can set, and such workpiece cooling is uniform, improves rate of cooling, shortens and come out of the stove the time.This
Sample heating, insulation and cool time are short, fundamentally solve the problems, such as high energy consumption and affect production efficiency energy consumption is dropped to most
Low, properties of product are higher, improve production efficiency.Cylinder ensures temperature distortion from material in the outer elevated-temperature seal of furnace shell, air door
Little.Succeeding in developing for the equipment, provides reference well to the design of all vacuum equipments later.
The key technical indexes of equipment：
Description of the drawings
Fig. 1 is the cross-sectional view of vacuum drying oven；
Fig. 2 is that top view is cutd open in the axial direction of vacuum drying oven；
Fig. 3 is that the cooling gas of Fig. 2 section views flow to schematic diagram；
Fig. 4 is the commutation schematic diagram reverse with the cooling gas of Fig. 3；
Fig. 5 is the sealed structural representation of air door cylinder piston rod and furnace shell adapter；
Fig. 6 is the middle close-up schematic view of Fig. 5；
Fig. 7 is the schematic enlarged-scale view that rear air door is closed；
Fig. 8 is the schematic enlarged-scale view that rear air door is opened；
Fig. 9 is this vacuum drying oven work flow schematic diagram.
Label in accompanying drawing：1. 2. furnace shell of vacuum system, 3. heating chamber, 4. front right air door, 5. front left air door, 6. rear left wind
12. sealing shroud of door 7. rear right air door, 8. heat exchanger 9. air channel 10. blower fan, 11. air door cylinder, 13. adjustment bolt 14. is taken out
15. fairlead of null interface, 16. 19. circlip for hole of sealing ring 17. middle ring, 18. pressure ring, 20. cylinder piston rod
25. vacuum adapter of air door cylinder, 26. valve after 22. bearing pin of air door plate, 23. hinge 24. after 21.
Specific embodiment
The Multifunction vacuum furnace of the present invention, including furnace shell, heating chamber, vacuum system, cooling system, PLC Based Intelligent Controls system
System, see Fig. 1,2, furnace shell 2 be columnar vacuum airtight container, be axially parallel to ground installation, barrel front end be ball-type door, stove
2 rear portion of shell is cooling system, including blower fan 10, heat exchanger 8, air channel 9, installs vacuum system 1, connected with valve 26 on the outside of furnace shell 2
Connect, axially disposed square heating chamber 3 in furnace shell 2, it is characterised in that 3 both sides wall of heating chamber installs the front right wind of left and right activity
Door 4 and front left air door 5, before front right, front left air door 4,5 frameworks, stile hinge is connected with 3 wall of heating chamber.In furnace shell 2, adding
3 outer rear portion of hot cell, 9 end of air channel are symmetrically installed air door after two commutations：Rear left air door 6 and rear right air door 7, as shown in figure 8, two
Air door plate 21 is revolving door afterwards, and 21 1 side of rear air door plate is by hinge 23 on the inside of 9 port of air channel；Fig. 7 is rear air door
Plate 21 is closed, and arrow is gas flow, and Fig. 8 is opened for rear air door plate 21.Four air door cylinders 11 are shown in figure outside furnace shell 2
5th, 6, cylinder piston rod 20 is connected using bearing pin 22 with each air door, drives rotary side to open by air door cylinder 11.Cylinder piston rod 20
It is connected with bearing pin 22 through the hole of furnace shell 2 by sealing structure, it is characterised in that on cylinder piston rod 20, use circlip for hole
19 fixed seal rings 16, with two groups of pressure ring 18 between y-type seal ring 16, are symmetrically installed on 17 two sides of middle ring totally.Cylinder is lived
Erection sequence is illustrated in figure 6 20 upper seal of stopper rod successively：Circlip for hole 19, pressure ring 18, y-type seal ring 16, pressure ring
18th, y-type seal ring 16, middle ring 17, y-type seal ring 16, pressure ring 18, y-type seal ring 16, be mounted in sealing shroud 12, fairlead
15 are fixed with holding screw with sealing shroud 12.Connection by metal hose is adopted between evacuated interface 14 and vacuum adapter 26, using taking out
Vacuum mode, it is ensured that middle ring 17 is constantly in vacuum state.Such as Fig. 5, it is ensured that sealing during 20 reciprocating action of cylinder piston rod
Performance, i.e. outside atmosphere will not be entered in furnace shell vacuum room.Front left and right air door 4,5 adopt hard carbon felt insulation construction, rear left,
Right air door 6,7 is monolayer carbon steel structure.One side mounting pin axle 22 of rear left and right air door, as switch gate fulcrum, with cylinder piston
Bar 20 connects.
When equipment is heated, front left and right air door 4,5 is closed, it is characterised in that heating chamber is without fixed passage, therefore energy consumption is little,
Observed temperature uniformity can reach ± 1.5 DEG C (beyond warm area uniformity criteria ± 3 DEG C of international 1 class vacuum drying oven)；Heating knot
Shu Hou, heating chamber front left and right air door 4,5 are first opened, according to technological requirement, when in-furnace temperature drops to setting forces chilling temperature,
Valve 26 is closed, and vacuum system 1 quits work, and is filled with cooling gas, reaches setting pressure, while rear right in quick past furnace shell 2
Air door 7 is closed, and blocks air channel, and rear left air door 6 is opened, and opens wide air channel 9, and blower fan starts, and sees Fig. 3, gas flow approach：As exchanged heat
8 → blower fan of device, 10 → cold air is from (the time after rear left air door 6 → front left, 5 → workpiece of air door → 4 → heat exchanger of front right air door 8,30 seconds
Can set), rear left air door 6 is closed, and blocks air channel 9, and rear right air door 7 is opened, and opens wide air channel 9, changes gas flow approach：Heat exchange
Device 8 → blower fan, 10 → rear right air door 7 → front right, 4 → workpiece of air door → 5 → heat exchanger of front left air door 8, such as Fig. 4, so left rearward
Air door 6 and the alternation switch of rear right air door 7, reach cooling gas commutation cycle, and each position of workpiece cools down evenly, deformation
Little, rate of cooling is faster.
Program robot control system(RCS) is arranged by work flow：See Fig. 9, open vacuum system 1 and valve 26, vacuum chamber is taken out
Empty；When vacuum reaches heating requirements, begin to warm up, front right air door 4, front left air door 5, rear left air door 6, rear right air door 7 are closed
Close；After heating schedule terminates, valve 26 and vacuum system 1 is closed, start inflation cooling, while front right air door 4 and front left air door 5
Open, in stove, reach cooling setpoint pressure, 10 automatic of blower fan, while rear left air door 6 and the alternating of rear right air door 7 beat on an off
Closing, realizing that cooling air-flow or so commutates, alt time is set as 30 seconds, and when 50 degree are cooled in stove, blower fan 10 stops.Can open
Door feeding, whole process operation terminate.
Claims (2)
1. a kind of Multifunction vacuum furnace, including furnace shell, heating chamber, vacuum system, cooling system, PLC intelligence control systems, its are special
Levy the front left and right air door for being the front portion setting activity of heating chamber (3) body, movable air door frame forward end hinge (23) be connected to plus
On the wall of hot cell (3) both sides, the outer rear portion of heating chamber (3), air channel (9) end is symmetrical, incline install rear left and right commutation air door (7,
8), each air door cylinder (11) installed in furnace shell (2) outward, cylinder piston rod (21) by sealing structure through furnace shell (2) and pin
Axle (22) connects, and drives air door by air door cylinder 11, realizes that cooling gas commutate；Program robot control system(RCS) is arranged by work flow：
Vacuum system (1) is opened, to evacuating in furnace shell (2)；When vacuum reaches heating requirements, begin to warm up, front right air door
(4), front left air door (5), rear left air door (6), rear right air door (7) are closed；After heating schedule terminates, start inflation cooling, while
Front right air door (4) and front left air door (5) are opened, and reach cooling setpoint pressure in stove, and blower fan (10) automatic, while rear left wind
Door (6) and rear right air door (7) alternating open or close air channel (9), realize that cooling air-flow or so commutates, are cooled to design temperature
When, enabling feeding, whole process operation terminate.
2. Multifunction vacuum furnace according to claim 1, it is characterised in that cylinder piston rod (20) is worn by sealing structure
The hole for crossing furnace shell (2) is connected with air door bearing pin (23), and cylinder piston rod (20) is upper to use circlip for hole (19) fixed seal ring
(16), it is symmetrically installed on middle ring (17) two sides, is mounted in sealing shroud with totally two groups of pressure ring (18) between y-type seal ring (16)
(12) inner, fairlead (15) is fixed with holding screw with sealing shroud (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214413.5A CN106500503A (en) | 2016-12-26 | 2016-12-26 | Multifunction vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214413.5A CN106500503A (en) | 2016-12-26 | 2016-12-26 | Multifunction vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106500503A true CN106500503A (en) | 2017-03-15 |
Family
ID=58333735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611214413.5A Pending CN106500503A (en) | 2016-12-26 | 2016-12-26 | Multifunction vacuum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106500503A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750679A (en) * | 2020-07-09 | 2020-10-09 | 北京北方华创真空技术有限公司 | Continuous cooling control method for resistance furnace |
| CN113701501A (en) * | 2021-09-02 | 2021-11-26 | 宁波恒普真空科技股份有限公司 | Sintering furnace cooling system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121277A1 (en) * | 1991-06-27 | 1993-01-07 | Leybold Durferrit Gmbh | METHOD AND DEVICE FOR THE AUTOMATIC MONITORING OF OPERATIONAL SAFETY AND FOR CONTROLLING THE PROCESS PROCESS IN A VACUUM HEAT TREATMENT OVEN |
| EP1643199B1 (en) * | 2003-06-27 | 2010-05-05 | IHI Corporation | Gas cooling type vacuum heat treating furnace and cooling gas direction switching device |
| CN202297699U (en) * | 2011-10-10 | 2012-07-04 | 上海汇森益发工业炉有限公司 | Continuous protective atmosphere heating high-pressure gas quenching furnace |
| CN103031416A (en) * | 2012-12-27 | 2013-04-10 | 上海汇森益发工业炉有限公司 | Double-chamber vacuum high-pressure gas quenching furnace |
| CN205639152U (en) * | 2016-05-05 | 2016-10-12 | 深圳市伙伴气动精密机械有限公司 | Gyration die clamping cylinder |
| CN206310906U (en) * | 2016-12-26 | 2017-07-07 | 沈阳恒进真空科技有限公司 | Multifunction vacuum furnace |
-
2016
- 2016-12-26 CN CN201611214413.5A patent/CN106500503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121277A1 (en) * | 1991-06-27 | 1993-01-07 | Leybold Durferrit Gmbh | METHOD AND DEVICE FOR THE AUTOMATIC MONITORING OF OPERATIONAL SAFETY AND FOR CONTROLLING THE PROCESS PROCESS IN A VACUUM HEAT TREATMENT OVEN |
| EP1643199B1 (en) * | 2003-06-27 | 2010-05-05 | IHI Corporation | Gas cooling type vacuum heat treating furnace and cooling gas direction switching device |
| CN202297699U (en) * | 2011-10-10 | 2012-07-04 | 上海汇森益发工业炉有限公司 | Continuous protective atmosphere heating high-pressure gas quenching furnace |
| CN103031416A (en) * | 2012-12-27 | 2013-04-10 | 上海汇森益发工业炉有限公司 | Double-chamber vacuum high-pressure gas quenching furnace |
| CN205639152U (en) * | 2016-05-05 | 2016-10-12 | 深圳市伙伴气动精密机械有限公司 | Gyration die clamping cylinder |
| CN206310906U (en) * | 2016-12-26 | 2017-07-07 | 沈阳恒进真空科技有限公司 | Multifunction vacuum furnace |
Non-Patent Citations (2)
| Title |
|---|
| 中国机械工程学会热处理学会编: "《热处理手册 第3卷 热处理设备和工辅材料》", 31 December 2013 * |
| 沈理: "《VKNQ真空高压气淬炉工艺性能概述》", 《国外金属热处理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750679A (en) * | 2020-07-09 | 2020-10-09 | 北京北方华创真空技术有限公司 | Continuous cooling control method for resistance furnace |
| CN113701501A (en) * | 2021-09-02 | 2021-11-26 | 宁波恒普真空科技股份有限公司 | Sintering furnace cooling system |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170315 |