CN208779941U - A kind of vacuum chamber sealing fire door - Google Patents
A kind of vacuum chamber sealing fire door Download PDFInfo
- Publication number
- CN208779941U CN208779941U CN201820854938.3U CN201820854938U CN208779941U CN 208779941 U CN208779941 U CN 208779941U CN 201820854938 U CN201820854938 U CN 201820854938U CN 208779941 U CN208779941 U CN 208779941U
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- China
- Prior art keywords
- fire door
- vacuum chamber
- sealing
- sealing surface
- door
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- 238000007789 sealing Methods 0.000 title claims abstract description 89
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001291 vacuum drying Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Special Wing (AREA)
Abstract
The utility model provides a kind of vacuum chamber sealing fire door, the fire door (4) being welded including steel plate combination, it is arranged at vacuum chamber fire door (1), Furnace door frame (2) and sealing ring (3) that steel plate combination is welded；The sealing ring (3) is fixed on the sealing surface of the fire door (4)；The fire door (4) is detachably arranged in the Furnace door frame.The utility model has the beneficial effects that ensure that the leakproofness of vacuum chamber while guaranteeing fire door intensity.
Description
Technical field
The utility model belongs to vacuum drying oven apparatus field, more particularly, to a kind of vacuum chamber fire door.
Background technique
In the more demanding steel pipe bright annealing furnace of protective atmosphere, vacuum chamber plays the oxygen content in control furnace atmosphere
Effect.The vacuum pump of vacuum chamber utilizes negative pressure, and the oxygen that steel pipe inside and outside wall is adhered to is extracted out, is supplemented the protection gas into nitrogen base
Atmosphere realizes the displacement of atmosphere in lumen.
When designing vacuum chamber fire door, generally there is following demand:
1. the intensity of fire door should be able to bear sufficiently large pressure；
2. the leakproofness that fire door should be able to keep vacuum chamber cavity.
The Chinese patent of application number 201620225009.7 provides a kind of new type sealing device of vacuum fire door, it is main
It include the two sides Anchor plate kit of sealing ring and fixed seal ring.It is equipped at the sealing surface on sealing ring top and seals single lip, institute
The sealing list lip portion protrusion sealing surface stated flexes outward and micro- tilting, the sealing ring are fixed on firedoor frame by two side plates
On, after compressing fire door, when the extruding fitting of firedoor handle sealing ring is tight, elastic become occurs for the sealing ring and the single lip of sealing
Shape, since the elastic deformation of sealing ring just produces sealing force, sealing force forces the upper and lower sealing surface of sealing ring all tightly to paste
It closes on the sealing surface of fire door and firedoor frame, realizes oven door sealing.
The program uses lip-shaped sealed ring as sealing ring, but reciprocating dynamic seal is suitable for the working environment of reciprocating dynamic seal
Under, however the sealing ring working environment of vacuum furnace door is extrusion pressing type sealing, therefore more excellent using O type sealing ring sealing effect.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of vacuum chamber sealing fire door, can bear vacuum chamber work in intensity
Bring pressure, and guarantee to still ensure that air-tightness under this negative pressure.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of vacuum chamber sealing fire door, it is special
Sign is: the fire door being welded including steel plate combination, and Furnace door frame and O-ring seal at vacuum chamber mouth is arranged in；Institute
O-ring seal is stated to be fixed on the sealing surface of the fire door；The fire door is detachably arranged in the Furnace door frame.
The fire door is designed by Strength co-mputation, is welded with the steel plate combination of different-thickness, with the above arrangement, plus
The strong intensity of fire door, the deflection for guaranteeing that fire door generates under the pressure that vacuum drying oven work generates meet the requirements.
The Furnace door frame is designed by Strength co-mputation, is welded with steel plate combination, with the above arrangement, strengthening furnace
The intensity of door frame, the deflection for guaranteeing that Furnace door frame generates under the pressure that vacuum drying oven work generates meet the requirements.
The sealing surface of the fire door is made by machining, and it is smooth to be machined to surface, smooth, the leakproofness after guaranteeing assembling.
The sealing surface of the Furnace door frame is made by machining, and it is smooth to be machined to surface, smooth, the sealing after guaranteeing assembling
Property.
The O-ring seal has multiple mounting modes on the sealing surface of the fire door:
The pairs of sealing ring briquetting of several groups, each sealing ring briquetting group in a ring, are fixed on the fire door by screw
Sealing surface on；The O-ring seal compresses the sealing surface for being located in the fire door by the inclined-plane of the sealing ring briquetting group
On.With the above arrangement, the sealing ring between fire door and firedoor frame deforms after fire door compression, fire door and firedoor frame are tightly shut
Between gap, reinforce the air-tightness of fire door while not destroying the structural strength of fire door.
After can also being computed, sealing ring is opened up on the sealing surface of the fire door under the premise of keeping door structure intensity
Slot, the sealing ring are fixed on the sealing surface of the fire door by the seal groove.
The seal groove can be the seal groove with rectangular section, and the seal groove of rectangular section designs, processing
Mode is relatively simple.
The seal groove may be that the sealing surface with the nearly fire door is big, and the sealing surface of the remote fire door is small to fall
The seal groove of trapezoid cross section processes the high reliablity that more difficult but sealing ring is installed on the fire door, and then guarantees fire door
Air-tightness.
Preferably, it is provided with observation window on the fire door under the premise of guaranteeing the door structure intensity, just
Working condition in furnace is monitored in operator.
Preferably, it is provided with handle on the fire door, the quick despatch of fire door is carried out convenient for operator.
By using above scheme, it can guarantee the air-tightness of fire door under the premise of guaranteeing fire door intensity, increase simultaneously
The ease for use of fire door.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention
Fig. 2 is an embodiment of the present invention sealing ring scheme of installation
Fig. 3 is an embodiment of the present invention sealing ring rectangular channel scheme of installation
Fig. 4 is an embodiment of the present invention sealing ring inverted trapezoidal slot scheme of installation
Fig. 5 is an embodiment of the present invention fire door front schematic view
In figure:
1, vacuum chamber fire door 2, Furnace door frame 3, sealing ring
4, fire door 5, sealing ring briquetting 6, seal groove
7, observation window 8, handle
Specific embodiment
As Fig. 1, an embodiment of the present invention structural schematic diagram shown in, an exemplary embodiments of the utility model include
Furnace door frame 2 and O-ring seal 3 at vacuum chamber mouth is arranged in the fire door 4 that steel plate combination is welded；O-ring seal 3
It is fixed on the sealing surface of fire door 4；Fire door 4 is detachably arranged in Furnace door frame 2.
In one exemplary embodiments of the utility model, fire door 4 is designed by Strength co-mputation, with the steel plate combination of different-thickness
It is welded, strengthens the intensity of fire door 4, the deflection for guaranteeing that fire door 4 generates under the pressure that vacuum drying oven work generates meets
It is required that.
In one exemplary embodiments of the utility model, Furnace door frame 2 is designed by Strength co-mputation, with steel plate combination welding
At strengthening the intensity of Furnace door frame 2, guarantee the deflection symbol that Furnace door frame 2 generates under the pressure that vacuum drying oven work generates
It closes and requires.
In one exemplary embodiments of the utility model, the sealing surface of fire door 4 is made by machining, and it is smooth to be machined to surface,
Smooth, after guaranteeing assembling leakproofness.
In one exemplary embodiments of the utility model, the sealing surface of Furnace door frame 2 is made by machining, and is machined to surface light
It is sliding, smooth, the leakproofness after guaranteeing assembling.
O-ring seal 3 has multiple mounting modes on the sealing surface of fire door 4:
In one exemplary embodiments of the utility model, such as Fig. 2, an embodiment of the present invention sealing ring scheme of installation institute
Show there is the sealing ring briquetting 5 that several groups are pairs of, each sealing ring briquetting group 5 in a ring, the sealing surface of fire door 4 is fixed on by screw
On；O-ring seal 3 is located on the sealing surface of fire door 4 by the inclined-plane compression of sealing ring briquetting 5.With the above arrangement, fire door
Sealing ring 3 between 4 and Furnace door frame 2 deforms after the compression of fire door 4, tightly shuts the seam between fire door 4 and Furnace door frame 2
Gap reinforces the air-tightness of fire door while not destroying the structural strength of fire door.
In some other embodiment of the utility model, after being computed, in furnace under the premise of keeping 4 structural strength of fire door
Seal groove 6 is opened up on the sealing surface of door 4, sealing ring 3 is fixed on the sealing surface of fire door 4 by seal groove 6:
As shown in Fig. 3, an embodiment of the present invention sealing ring rectangular channel scheme of installation, seal groove 6 can be tool
There is the seal groove of rectangular section, the seal groove of rectangular section designs, and processing method is relatively simple.
As shown in Fig. 4, an embodiment of the present invention sealing ring inverted trapezoidal slot scheme of installation, seal groove 6 can also be with
It is big for the sealing surface with the nearly fire door, the seal groove in the small inverted trapezoidal section of the sealing surface of the remote fire door, processing compared with
The high reliablity that difficult but sealing ring is installed on the fire door, and then guarantee the air-tightness of fire door.
In one exemplary embodiments of the utility model, preferably, in furnace under the premise of guaranteeing 4 structural strength of fire door
It is provided with observation window on door 4, monitors working condition in furnace convenient for operator.Just such as Fig. 5, an embodiment of the present invention fire door
Shown in the schematic diagram of face.
In one exemplary embodiments of the utility model, preferably, it is provided with handle on fire door 4, is convenient for operator
Carry out the quick despatch of fire door 4.As shown in Fig. 5, an embodiment of the present invention fire door front schematic view.
When the present embodiment works, due to generating negative pressure inside vacuum drying oven, fire door is pressed in Furnace door frame at this time, fire door
Ring structure between doorframe ensure that the air-tightness of vacuum drying oven, and fire door combines weldering using multilayer steel plates with Furnace door frame
The structure connect, when absolute pressure reaches 200Pa in vacuum chamber, deformation is in zone of reasonableness and is able to maintain vacuum cavity
Sealing.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (9)
1. a kind of vacuum chamber seals fire door characterized by comprising
Fire door (4), the fire door (4) are welded by steel plate combination；
Furnace door frame (2), the Furnace door frame (2) are arranged at vacuum chamber fire door (1), are welded by steel plate combination；
And sealing ring (3), the sealing ring (3) are arranged on the sealing surface of the fire door (4)；
The fire door (4) is detachably arranged in the Furnace door frame.
2. a kind of vacuum chamber according to claim 1 seals fire door, it is characterised in that: further include the pairs of sealing of several groups
Briquetting is enclosed, each sealing ring briquetting group is arranged in a ring on the sealing surface of the fire door (4)；The sealing ring (3) passes through
The sealing ring briquetting is fixed on the sealing surface of the fire door (4).
3. a kind of vacuum chamber according to claim 1 seals fire door, it is characterised in that: on the sealing surface of the fire door (4)
Equipped with seal groove, the sealing ring is fixed on the sealing surface of the fire door (4) by the seal groove.
4. a kind of vacuum chamber according to claim 3 seals fire door, it is characterised in that: the seal groove is cut with rectangle
Face.
5. a kind of vacuum chamber according to claim 3 seals fire door, it is characterised in that: the seal groove has close described
The sealing surface end of fire door (4) is big, the small inverted trapezoidal section in the sealing surface end of the remote fire door (4).
6. a kind of vacuum chamber as claimed in any of claims 1 to 5 seals fire door, it is characterised in that: the fire door
(4) sealing surface surface is smooth.
7. a kind of vacuum chamber as claimed in any of claims 1 to 5 seals fire door, it is characterised in that: the fire door
The sealing surface surface of doorframe (2) is smooth.
8. a kind of vacuum chamber as claimed in any of claims 1 to 5 seals fire door, it is characterised in that: the fire door
(4) observation window is provided on.
9. a kind of vacuum chamber as claimed in any of claims 1 to 5 seals fire door, it is characterised in that: the fire door
(4) handle is provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854938.3U CN208779941U (en) | 2018-06-04 | 2018-06-04 | A kind of vacuum chamber sealing fire door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854938.3U CN208779941U (en) | 2018-06-04 | 2018-06-04 | A kind of vacuum chamber sealing fire door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208779941U true CN208779941U (en) | 2019-04-23 |
Family
ID=66148847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820854938.3U Active CN208779941U (en) | 2018-06-04 | 2018-06-04 | A kind of vacuum chamber sealing fire door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208779941U (en) |
-
2018
- 2018-06-04 CN CN201820854938.3U patent/CN208779941U/en active Active
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| GR01 | Patent grant |