CN205839070U - A kind of shield type bright annealing oven - Google Patents
A kind of shield type bright annealing oven Download PDFInfo
- Publication number
- CN205839070U CN205839070U CN201620477277.8U CN201620477277U CN205839070U CN 205839070 U CN205839070 U CN 205839070U CN 201620477277 U CN201620477277 U CN 201620477277U CN 205839070 U CN205839070 U CN 205839070U
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- furnace body
- lower furnace
- impeller axle
- heater
- sealing
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Abstract
The utility model discloses a kind of shield type bright annealing oven, it is crimped on the upper furnace body above it including lower furnace body and sealing, the internal diameter of two bodies of heater is consistent, pillar it is disposed with in lower furnace body, the upper end of pillar connects horizontally disposed bedplate, workpiece is placed on bedplate and is covered by tubular cover body, the bottom of lower furnace body connects circulating fan, cavity between tubular cover body and upper furnace body is disposed with calandria, cooling water pipe it is disposed with in body of heater, the bottom of lower furnace body connects has noble gas intake valve, top connection to have gravity safety valve, and there is bracing frame the lower end of lower furnace body.Circulating fan is forced to form circulated air in making body of heater, directly the heat of heater taken away by high wind during heating and along air channel, heat delivered to complete heat exchange on workpiece to be heated, it is incubated post-heating to stop, being passed through cooling water in cooling water pipe, circulated air takes away realization cooling the heat on high temperature workpiece again.Heating is fast, efficiency is high, cooling is quick, temperature homogeneity is good.
Description
Technical field
This utility model relates to a kind of metal heat treatment equipment, is specifically related to a kind of bell-type light utilizing inert gas shielding
Bright annealing furnace.
Background technology
Traditional shield type bright annealing oven is generally made up of inner cover, heating mantles, cooling dome and base etc., and inner cover passes through flange
And sealing ring is pressed together with base, product is loaded in the inner cover of full noble gas, by a stirring blower fan in cover
Gas is stirred.Equipped with heater inside heating mantles, by the outer wall of radiation heating inner cover, then heated by the inwall of inner cover
Workpiece in dress cover, is hung away heating mantles after heating and insulation complete, then is cooled down inner cover by cooling dome, so that interior
Product cooling in cover.
The pattern of this classics there is problems in that
(1) ability heated parts after the heating of workpiece must first radiate heating inner cover, only inner cover heating, so adds thermal effect
Rate is the highest and heating mantles is relatively big to the thermograde of inner cover, causes heater must be in higher operating temperature for a long time, because of
And efficiency is relatively low；
(2) blower fan in inner cover only plays the effect of stirring, does not form the wind of forced convertion, therefore, in inner cover
Air flowing is unordered, is unfavorable for improving workpiece temperature uniformity and temperature accuracy；
(3) inner cover is relatively big with the connection area of base, and typically requires water-cooled, causes leakage heat more；
(4) inner cover top operating temperature is high, and bottom operating temperature is low, and heat differential is relatively big, thus results in the close of inner cover and base
Envelope reliability is the highest.
Utility model content
The purpose of this utility model be to provide a kind of can pumping high vacuum, the high energy efficiency cover of noble gas quickly and orderly circulation
Formula bright annealing furnace.
The utility model discloses a kind of shield type bright annealing oven, be crimped on the upper stove above it including lower furnace body and sealing
Body, the internal diameter of two bodies of heater is consistent, is disposed with pillar in lower furnace body, and the upper end of pillar connects horizontally disposed bedplate, workpiece
Being placed on bedplate and covered by tubular cover body, it is external that upper furnace body covers in cylindrical cover, and the bottom of lower furnace body connects circulating fan,
Being disposed with calandria in cavity between tubular cover body and upper furnace body, be disposed with cooling water pipe in body of heater, the bottom of lower furnace body connects
Be connected to noble gas intake valve, top connection has gravity safety valve, and there is bracing frame the lower end of lower furnace body；Calandria is made to generate heat, logical
Cross formation circulated air in body of heater forced by circulating fan to complete to accelerate the heating up process of workpiece, heat temperature raising and insulating process
After, in cooling water pipe, it is passed through cooling water the heat in body of heater is taken away makes workpiece cool down.
As preferably, the inwall of described upper furnace body and lower furnace body is corrosion resistant plate, the lower surface of upper furnace body wall body and under
The upper surface of body of heater wall body is corrosion resistant plate, and the thickness of inwall corrosion resistant plate is more than the corrosion resistant plate thickness of end face.In body of heater
Wall uses the corrosion resistant plate that 2-4mm is thick, with proof strength.End face uses the corrosion resistant plate of 0.5-1mm, to reduce heat transfer area.
As preferably, by being connected to the flange pressure of two body of heater end outer walls between described upper furnace body and lower furnace body
Connecing, be provided with the sealing ring of inside and outside two rubber between two flanges, inner seal ring is high-temperature resistant seal ring, and the sealing ring in outside is hard
Degree is more than the hardness of inner seal circle, and the diameter of inner seal circle is more than the diameter of outer side seal circle；End flanges under upper furnace body
Joint face is plane, the joint face of lower furnace body upper flanges have two for the cannelure being embedded in two sealing rings, two sealing rings
Top is positioned at outside annular seal groove.Vacuum seals and is mainly ensured by the sealing ring of inner side, and the large sealing packing ring in outside is hard, upper stove
The weight of body is mainly supported by, simultaneously and form a pressure differential between the sealing ring of inner side, such that it is able to preferably ensure
Vacuum in stove.
Further, between described upper furnace body and the wall body of lower furnace body, it is provided with steam back-up ring, the inwall of lower furnace body and upper
End face intersection is provided with the thickness rustless steel annulus more than inner wall thickness, and the bottom of steam back-up ring is flush-mounted in rustless steel annulus
In.Steam back-up ring the loss that on the one hand can reduce heat is set, the opposing party completely can extend the use longevity of rubber seal
Life.
As preferably, described heater is arranged along the short transverse of described tubular cover body, the top of tubular cover body and lower stove
Body is respectively disposed with described cooling water pipe.
As preferably, the upper end of described tubular cover body and bedplate are respectively disposed with the air vent of impenetrating thickness；Base
The downside of plate connects the lower wind-collecting cover having pot bottom type, has collection air holes at the bottom centre position of lower wind-collecting cover.
As preferably, described circulating fan includes motor and impeller, is passed by band between output shaft and the impeller axle of motor
Being dynamically connected, impeller is positioned at lower furnace body, and impeller axle includes hollow section and solid-section, and the inner of solid-section and impeller are connected as one
Body, outer end are welded as a whole with hollow section, and hollow section is installed fixing by the cylinder base being connected on support frame as described above, and cylinder base is two
The cylinder that end seal is closed, impeller axle is connected to self-aligning roller bearing and biserial at the inner end plate with outer end of cylinder
Taper roll bearing, two bearings is fixing by being individually fixed in the bearing block installation inside respective end plates respectively；Outside cylinder
Wall cloth is equipped with fin, is also associated with strengthening gusset between outer wall and the support frame as described above of cylinder.The belt pulley peace of impeller axle
Dress section is taper degree, and the axial centre of belt pulley has corresponding bellmouth, passes through pressing plate between outer end and the impeller axle of belt pulley
And trip bolt installation is fixing；Ji Fengkongchu bottom the corresponding described lower wind-collecting cover of the installation site of impeller.
Further, between described impeller axle and described cylinder base outer end end plate, connection has dynamic sealing assembly, dynamic sealing assembly
Including sealing lid, multiple contact sealing ring and a dynamic seal ring, seal lid and by tight by screw between the end plate of outer end
Gu, the center position sealing lid has the installing hole passed for impeller axle, multiple contact sealing rings to be flush-mounted in installation successively
The sidewall in hole, dynamic seal ring is flush-mounted in the outer end of installing hole, and contact sealing ring is rectangle standard dynamic seal ring, and dynamic seal ring is
The single piece of the cone seal tongue at rectangular seal ring and center, outer end thereof, is that tapering is more than cone at impeller axle correspondence cone seal tongue
The cone section of shape sealed tongue tapering, the aperture, outer end of cone seal tongue is consistent with the corresponding position external diameter of impeller axle；On impeller axle
The outside of the corresponding rectangular seal ring sealing lid and dynamic seal ring connects nut, and the cone seal tongue of dynamic seal ring stretches into nut
Centre bore in.
Further, having ajutage in the inner chamber of described impeller axle, the outer end of ajutage connects pressure fan, ajutage
Offering wind pushing hole on inner tube wall, cold wind enters from wind pushing hole and discharges after in the gap between impeller axle and ajutage.
As preferably, the installed position of the corresponding described impeller axle of described lower furnace body connects stainless steel tube, described impeller
Axle passes from stainless steel tube, and in stainless steel tube, corresponding lower furnace body base plate thickness position is packed with heat-preservation cotton, in impeller axle
The nearly solid-section end of dead band is packed with heat-preservation cotton, and the solid-section of impeller axle is through at stainless steel tube and inside lower furnace body base plate
Connect and have steam back-up ring.
This utility model arranges the charging base being made up of pillar and bedplate in lower furnace body, by the workpiece on bedplate
Covering with tubular cover body, it is external that upper furnace body covers in cylindrical cover again, arranges collection wind on the upside and bedplate of tubular cover body simultaneously
Hole, forms air channel, arranges calandria in air channel between tubular cover body and upper furnace body, tubular cover body is equivalent to wind scooper, passes through
Circulating fan bottom lower furnace body is forced to form circulated air in making body of heater, by high wind directly the heat band of heater during heating
Walk and along air channel, heat is delivered to complete heat exchange on workpiece to be heated, when reaching technological temperature and after insulation completes, heating
Stopping, being passed through cooling water in cooling water pipe, circulated air takes away realization cooling the heat on high temperature workpiece again.Due to high wind handle
Heat on heater is directly taken away, thus the thermal efficiency is high and firing rate is fast, ensures that the operating temperature of heater is relatively low simultaneously
Thus the life-span is long.Further, since cooling water is directly taken away intrasystem heat, thus the fast cooling effectiveness of rate of cooling is the most relatively
High.
In order to the flow effect making circulation air path is more preferable, thus higher to the heating function of workpiece, in the downside of bedplate
Connect the lower wind-collecting cover of pot bottom type, and at the bottom of a pan, offer collection air holes, by the impeller installation site of circulating fan corresponding to collection wind
At hole, such circulated air from through impeller stir after respectively from the passage between tubular cover body and upper furnace body up after through tubular cover body
The air vent of upper end enters heated parts in cylindrical cover body, during then the air vent from bedplate enters wind-collecting cover, finally from
Ji Fengkongchu bottom wind-collecting cover is stirred for Posterior circle flowing through impeller.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the A portion enlarged diagram in Fig. 1.
Fig. 3 is that enlarged diagram is fixed in the installation of circulating fan.
Fig. 4 is the B portion enlarged diagram in Fig. 3.
Detailed description of the invention
As it is shown in figure 1, the utility model discloses a kind of shield type bright annealing oven, it is crimped on including lower furnace body 1 and sealing
Upper furnace body 2 above it, the internal diameter of two bodies of heater is consistent, and there is bracing frame 3 lower end of lower furnace body 1.
The inwall of upper furnace body 2 and lower furnace body 1 is corrosion resistant plate, the lower surface of upper furnace body 2 wall body and lower furnace body 1 wall body
Upper surface is corrosion resistant plate, and the thickness of inwall corrosion resistant plate is more than the corrosion resistant plate thickness of end face.In upper furnace body and lower furnace body
The corrosion resistant plate of wall selects thickness to be 2 ~ 4mm, and the steel plate endlessly of both ends of the surface selects thickness to be 0.5 ~ 1mm.Outside upper furnace body inwall
Insulation material uses heat-preservation cotton, and the insulation material outside lower furnace body inwall uses insulating brick.
As shown in Figure 1 and Figure 2, by being connected to the flange crimping of two furnace body outer walls between upper furnace body 2 and lower furnace body 1,
Being provided with inner seal ring 4 and exterior seal ring 5 between two flanges, two sealing rings are rubber seal, and inner seal ring 4 is high temperature resistant
Sealing ring, the hardness of exterior seal ring 5 is more than the hardness of inner seal ring 4, and the diameter of inner seal ring 4 is more than the diameter of exterior seal ring 5.
The joint face of 2 times end flanges of upper furnace body is plane, and the joint face of lower furnace body 1 upper flanges has two for being embedded in two sealing rings
Cannelure, the top of two sealing rings is positioned at outside annular seal groove.Inner seal ring 4 is softer, and heatproof is high, and vacuum seals main by it
Ensureing, exterior seal ring 5 is hard, and the weight of upper furnace body 2 is mainly supported by, simultaneously shape between exterior seal ring 5 and inner seal ring 4
Become a pressure differential, such that it is able to preferably ensure vacuum in the stove that inner seal ring 4 can ensure.
It is additionally provided with steam back-up ring 6, the inwall of lower furnace body 1 and upper surface between the wall body of upper furnace body 2 and lower furnace body 1 to have a common boundary
Place is provided with the thickness rustless steel annulus 7 more than inner wall thickness, and the bottom of steam back-up ring 6 is flush-mounted in rustless steel annulus 7.Steam
On the one hand arranging of back-up ring avoid heat loss, on the other hand avoids the use affecting inner seal ring to use the life-span.Steam back-up ring 6 can be adopted
Make of asbestos.
As it is shown in figure 1, the furnace bottom of lower furnace body 1 protected gas inlet valve JQF, it is used in stove, be filled with protective gas, on
Gravity safety valve AQF is arranged at the top of body of heater 2, forms pressure-fired in controlling stove by gravity safety valve AQF.Certainly, both peaces
Holding position can exchange.
Being disposed with pillar 8 in lower furnace body 1, the upper end of pillar 8 connects horizontally disposed bedplate 9, pillar 8 and bedplate
9 composition filling places.Workpiece is placed on bedplate 9 and is covered by tubular cover body 10, and tubular cover body 10 is positioned at upper furnace body 2
Side, tubular cover body 10 and upper furnace body 2 are connected as a single entity by being connected post (being not drawn into connection post in Fig. 1) when making, so go up stove
Body and tubular cover body can once lift and put in place.Cavity between tubular cover body 10 and upper furnace body 2 is disposed with calandria 11, heating
Body 11 is arranged along the short transverse of tubular cover body 10.The top of tubular cover body 10 and lower furnace body 1 are respectively disposed with cooling water pipe
12, the cooling water pipe 12 in lower furnace body 1 is arranged in the outside of pillar 8.
The upper end of tubular cover body 10 and bedplate 9 are respectively disposed with the collection air holes of impenetrating thickness.The downside of bedplate 9 connects
There is the lower wind-collecting cover 13 of pot bottom type, at the bottom centre position of lower wind-collecting cover 13, have collection air holes.
Circulating fan, circulating fan is had to include motor 14 and impeller 15, motor as it is shown on figure 3, the bottom of lower furnace body 1 connects
Being connected by V belt translation between output shaft and the impeller axle 16 of 14, impeller 15 is positioned at lower furnace body 1, and impeller axle 16 includes hollow section
161 and solid-section 162, the inner of solid-section and impeller 15 connect as one, outer end is welded as a whole with hollow section, and hollow section leads to
Crossing the cylinder base TZ being connected on bracing frame 3 and install fixing, cylinder base TZ is the cylinder TZ1 of closed at both ends, and impeller axle 16 is through circle
It is connected to self-aligning roller bearing 17 and double-row conical bearing 18, two bearings at the inner end plate with outer end of cylinder TZ1
Fixing by being individually fixed in the bearing block installation inside respective end plates respectively.Wind-collecting cover 13 under the installation site correspondence of impeller 15
The Ji Fengkongchu of bottom.The outer wall of cylinder TZ1 is disposed with between outer wall and the bracing frame 3 of fin TZ2, cylinder TZ1 also
Connect and have reinforcement gusset TZ3.
As shown in Figure 3, Figure 4, between impeller axle 16 and cylinder base TZ outer end end plate, connection has dynamic sealing assembly, dynamic sealing assembly
Including sealing 19, three contact sealing rings 20 of lid and a dynamic seal ring 21, seal lid 19 and by logical between the end plate of outer end
Crossing screw fastening, the center position sealing lid 20 has the installing hole passed for impeller axle 16, three contact sealing rings 20
Being flush-mounted in the sidewall of installing hole successively, dynamic seal ring 21 is flush-mounted in the outer end of installing hole, and contact sealing ring 20 is rectangle standard
Dynamic seal ring, dynamic seal ring 21 is the single piece of the cone seal tongue at rectangular seal ring and center, outer end thereof, and impeller axle 16 is corresponding
It is the tapering cone section that is more than cone seal tongue tapering at cone seal tongue, the aperture, outer end of cone seal tongue and the phase of impeller axle 16
Answer position external diameter consistent.Connect outside the corresponding rectangular seal ring sealing lid 19 and dynamic seal ring 21 on impeller axle 16 and have nut
22, the cone seal tongue of dynamic seal ring 21 stretches in the centre bore of nut 22.There is travel switch 25 in the outside of nut 22.
During evacuation, owing to inside pressure is low, the cone seal tongue of dynamic seal ring 21 is close to leaf under atmospheric pressure
Wheel shaft surface realizes sealing.Normality lower nut 22 does not compress cone seal tongue, but under fall back on and contact with travel switch 25, when
When sealing can not get ensureing preparation evacuation, nut 22 is first upwards tightened by the conical surface in nut 22 taper is close by operator
Flap is pressed on impeller axle 16, after maintaining malleation in vacuum exhausts and is passed through in stove noble gas and makes stove, it is necessary to
Nut 22 unclamps and goes downwards to contact with travel switch 25, and now impeller axle 16 can rotate.
Having ajutage 23 in the inner chamber of impeller axle 16, the outer end of ajutage 21 connects pressure fan 24, ajutage 24 interior
Offering wind pushing hole on end tube wall, cold wind enters from wind pushing hole and discharges after in the gap between impeller axle 16 and ajutage 23.
The installed position of the corresponding impeller axle 16 of lower furnace body 1 connects stainless steel tube 26, and impeller axle 16 is from stainless steel tube 26
In pass, in stainless steel tube 26, corresponding lower furnace body 1 base plate thickness position is packed with heat-preservation cotton, the hollow section of impeller axle 16 near
Solid-section end is packed with heat-preservation cotton, and the solid-section of impeller axle 16 has through connecting at stainless steel tube and inside lower furnace body base plate
Steam back-up ring.
This utility model arranges the charging base being made up of pillar and bedplate in lower furnace body, and the workpiece on bedplate is just
Good being covered by tubular cover body, upper furnace body and tubular cover body connect as one by being connected post when making, while at tubular cover body
Upside and bedplate on arrange collection air holes, between tubular cover body and upper furnace body formed air channel, air channel arranges calandria, cylinder
Shape cover body is equivalent to wind scooper, forces to form circulated air, pass through during heating in making body of heater by the circulating fan bottom lower furnace body
High wind is directly taken away the heat of heater and along air channel, heat is delivered to complete heat exchange on workpiece to be heated, when reaching work
Skill temperature after being incubated, heating stops, and is passed through cooling water in cooling water pipe, and circulated air is again the heat on high temperature workpiece
Take away realization cooling.Owing to high wind is directly taken away the heat on heater, thus the thermal efficiency is high and firing rate is fast, protects simultaneously
The operating temperature of card heater is relatively low thus the life-span is long.Further, since cooling water is directly taken away intrasystem heat, thus cold
But the fast cooling effectiveness of speed is the highest.
In order to the flow effect making circulation air path is more preferable, thus higher to the heating function of workpiece, in the downside of bedplate
Connect the lower wind-collecting cover of pot bottom type, and at the bottom of a pan, offer collection air holes, by the impeller installation site of circulating fan corresponding to collection wind
At hole, such circulated air from through impeller stir after respectively from the passage between tubular cover body and upper furnace body up after through tubular cover body
The air vent of upper end enters heated parts in cylindrical cover body, during then the air vent from bedplate enters wind-collecting cover, finally from
Ji Fengkongchu bottom wind-collecting cover is stirred for Posterior circle flowing through impeller.The trend of circulated air is as shown by the arrows in Figure 1.
Claims (10)
1. a shield type bright annealing oven, it is characterised in that: it includes lower furnace body and is crimped on the upper furnace body above it with sealing, two
The internal diameter of body of heater is consistent, is disposed with pillar in lower furnace body, and the upper end of pillar connects horizontally disposed bedplate, and workpiece is placed in the end
Being covered by tubular cover body on seat board, it is external that upper furnace body covers in cylindrical cover, and the bottom of lower furnace body connects circulating fan, cylindrical cover
Being disposed with calandria in cavity between body and upper furnace body, be disposed with cooling water pipe in body of heater, the bottom connection of lower furnace body has lazy
Property gas inlet valve, top connect have gravity safety valve, there is bracing frame the lower end of lower furnace body；Calandria is made to generate heat, by circulation
Blower fan forms circulated air and accelerates the heating up process of workpiece in forcing body of heater, after heat temperature raising and insulating process complete, past
Cooling water pipe is passed through cooling water taken away by the heat in body of heater and make workpiece cool down.
2. shield type bright annealing oven as claimed in claim 1, it is characterised in that: the inwall of described upper furnace body and lower furnace body is
Corrosion resistant plate, the lower surface of upper furnace body wall body and the upper surface of lower furnace body wall body are corrosion resistant plate, the thickness of inwall corrosion resistant plate
Degree is more than the corrosion resistant plate thickness of end face.
3. shield type bright annealing oven as claimed in claim 2, it is characterised in that: by dividing between described upper furnace body and lower furnace body
It is not connected to the flange crimping of two body of heater end outer walls, between two flanges, is provided with the sealing ring of inside and outside two rubber, interior sealing
Circle is high-temperature resistant seal ring, and the sealing ring hardness in outside is more than the hardness of inner seal circle, and the diameter of inner seal circle is more than outward
The diameter of side seal circle；Under upper furnace body, the joint face of end flanges is plane, the joint face of lower furnace body upper flanges have two for
Being embedded in the cannelure of two sealing rings, the top of two sealing rings is positioned at outside annular seal groove.
4. shield type bright annealing oven as claimed in claim 3, it is characterised in that: between described upper furnace body and the wall body of lower furnace body
Being provided with steam back-up ring, the inwall of lower furnace body and upper surface intersection are provided with the thickness rustless steel annulus more than inner wall thickness,
The bottom of steam back-up ring is flush-mounted in rustless steel annulus.
5. shield type bright annealing oven as claimed in claim 1, it is characterised in that: described heater is along the height of described tubular cover body
Degree direction is arranged, is respectively disposed with described cooling water pipe in the top of tubular cover body and lower furnace body.
6. shield type bright annealing oven as claimed in claim 1, it is characterised in that: on the upper end of described tubular cover body and bedplate
It is respectively disposed with the air vent of impenetrating thickness；The downside of bedplate connects the lower wind-collecting cover having pot bottom type, the bottom of lower wind-collecting cover
Center position has collection air holes.
7. shield type bright annealing oven as claimed in claim 6, it is characterised in that: described circulating fan includes motor and impeller,
Being connected by V belt translation between output shaft and the impeller axle of motor, impeller is positioned at lower furnace body, and impeller axle includes hollow section and reality
Heart section, the inner of solid-section and impeller connect as one, outer end is welded as a whole with hollow section, and hollow section is described by being connected to
Cylinder base on bracing frame is installed fixing, and cylinder base is the cylinder of closed at both ends, and impeller axle is the inner and end of outer end through cylinder
Being connected to self-aligning roller bearing and double-row conical bearing at plate, two bearings is respectively by being individually fixed in respective end plates
The bearing block of inner side is installed fixing；The outer wall of cylinder is disposed with fin, between outer wall and the support frame as described above of cylinder also
Connect and have reinforcement gusset；The belt pulley construction section of impeller axle is conical section, and the axial centre of belt pulley has corresponding bellmouth, skin
Install fixing by pressing plate and trip bolt between outer end and the impeller axle of belt wheel；The corresponding described next part wind of the installation site of impeller
Ji Fengkongchu bottom cover.
8. shield type bright annealing oven as claimed in claim 7, it is characterised in that: described impeller axle and described cylinder base outer end end plate
Between connect and have dynamic sealing assembly, dynamic sealing assembly to include sealing lid, multiple contact sealing ring and a dynamic seal ring, seal
Covering and by being fastened by screw between the end plate of outer end, the center position sealing lid has the installing hole passed for impeller axle,
Multiple contact sealing rings are flush-mounted in the sidewall of installing hole successively, and dynamic seal ring is flush-mounted in the outer end of installing hole, contact seal
Circle is rectangular seal, and dynamic seal ring is the single piece of the cone seal tongue at rectangular seal ring and center, outer end thereof, impeller axle pair
Answering at cone seal tongue is the tapering cone section that is more than cone seal tongue tapering, the aperture, outer end of cone seal tongue and the phase of impeller axle
Answer position external diameter consistent；On impeller axle, the outside of the corresponding rectangular seal ring sealing lid and dynamic seal ring connects nut, dynamic
The cone seal tongue of sealing ring stretches in the centre bore of nut.
9. shield type bright annealing oven as claimed in claim 7, it is characterised in that: the inner chamber of described impeller axle there is ajutage,
The outer end of ajutage connects pressure fan, and the inner tube wall of ajutage offers wind pushing hole, and cold wind enters leaf from wind pushing hole
Discharge after in gap between wheel shaft and ajutage.
10. shield type bright annealing oven as claimed in claim 7, it is characterised in that: the corresponding described impeller axle of described lower furnace body
Installed position connects has stainless steel tube, described impeller axle to pass from stainless steel tube, corresponding lower furnace body base plate in stainless steel tube
Being packed with heat-preservation cotton at thickness position, the nearly solid-section end of the hollow section of impeller axle is packed with heat-preservation cotton, the solid-section of impeller axle
Connect at stainless steel tube and inside lower furnace body base plate and have steam back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477277.8U CN205839070U (en) | 2016-05-24 | 2016-05-24 | A kind of shield type bright annealing oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477277.8U CN205839070U (en) | 2016-05-24 | 2016-05-24 | A kind of shield type bright annealing oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205839070U true CN205839070U (en) | 2016-12-28 |
Family
ID=57624000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620477277.8U Withdrawn - After Issue CN205839070U (en) | 2016-05-24 | 2016-05-24 | A kind of shield type bright annealing oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205839070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803179A (en) * | 2016-05-24 | 2016-07-27 | 郑英 | Cover type bright annealing furnace |
| CN108285967A (en) * | 2018-03-13 | 2018-07-17 | 盐城圣奥热处理有限公司 | A kind of bell type annealing furnace |
-
2016
- 2016-05-24 CN CN201620477277.8U patent/CN205839070U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803179A (en) * | 2016-05-24 | 2016-07-27 | 郑英 | Cover type bright annealing furnace |
| CN108285967A (en) * | 2018-03-13 | 2018-07-17 | 盐城圣奥热处理有限公司 | A kind of bell type annealing furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20161228 Effective date of abandoning: 20170808 |
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| AV01 | Patent right actively abandoned |