CN208454821U - Preform sintering furnace heart pipe structure - Google Patents
Preform sintering furnace heart pipe structure Download PDFInfo
- Publication number
- CN208454821U CN208454821U CN201820759127.5U CN201820759127U CN208454821U CN 208454821 U CN208454821 U CN 208454821U CN 201820759127 U CN201820759127 U CN 201820759127U CN 208454821 U CN208454821 U CN 208454821U
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- furnace heart
- melt pit
- furnace
- tube body
- sealing
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- 238000005245 sintering Methods 0.000 title claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 118
- 239000000155 melt Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 52
- 229910002804 graphite Inorganic materials 0.000 claims description 52
- 239000010439 graphite Substances 0.000 claims description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 238000009423 ventilation Methods 0.000 claims description 26
- 239000010453 quartz Substances 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 24
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 230000000505 pernicious effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 239000003708 ampul Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 241000656145 Thyrsites atun Species 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229940119177 germanium dioxide Drugs 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A kind of preform sintering furnace heart pipe structure, there is the furnace heart tube body of furnace heart lumen including constituting, the top of furnace heart tube body is located in sintering furnace ontology and leans out the top of sintering furnace body, lower part probes into a melt pit equipped with melt pit sealing cover, sintering furnace body is supported on a pylon, pylon is supported on terrace in the position for the top for corresponding to melt pit, feature: the top of furnace heart lumen from furnace heart tube body is penetrated through to lower part, the lower part of the furnace heart tube body and position of lower accent for corresponding to furnace heart lumen is connected with accent sealing mechanism under furnace heart lumen, the position of the top of melt pit and the lower section corresponding to melt pit sealing cover is provided with a furnace heart tube body supporting device, the lower support of furnace heart tube body is on the furnace heart tube body supporting device.Ensure dehydration and sintering effect；Furnace heart tube body will not be undermined and be able to ensure safety；Structure is simple, easy to operate；Ensure the stability of the intraluminal process gas of the furnace heart.
Description
Technical field
The utility model belongs to preform manufacturing facility technical field, and in particular to a kind of preform sintering
Furnace heart pipe structure.
Background technique
As is known in the industry, the preparation process of preform includes loosening body deposition and loosening body sintering, the former is by two
Silica (SiO2) and germanium dioxide (GeO2) powdered granule (also referred to as " dust particles ") deposition and form density usually in 0.2-
0.4g/cm3The cylindric loosening body of white.Exist due to easy fracture when cylindric loosening body above-mentioned, which rubbed, to be touched, thus by the latter
The former is subjected to high temperature sintering and is used as glass preform finished product in sintering furnace, that is, forms preform finished product.
Sintering furnace above-mentioned can generate very big or even be to the quality good or not of sintering process and finished glass prefabricated rods
Conclusive influence.Sintering furnace in prior art is mainly by heater (also referred to as " sintering furnace body ", the same below) and furnace heart pipe
And the pylon as peripheral components forms, the function of heater is to provide thermal field condition required by technique for sintering, and furnace
Heart Guan Zewei sintering provides the environment of such as relatively closed, safety, cleaning etc.Since sintering temperature is higher, usually 1400
DEG C or more, and due to containing chlorine in the process gas in sintering process, and chlorine is for hypertoxicity gas and in dehydration
In can generate highly acid gas (i.e. HCl), thus the requirement of the high temperature resistance and air-tightness etc. to furnace heart pipe is extremely harsh.
The technical information of furnace heart pipe can be seen in disclosed Chinese patent literature, such as invention patent mandate notification number
CN105271698B recommendation has " a kind of detachable furnace heart pipe structure of segmented for being used to prepare preform ", the patent formula
It is for prior art because, service life big as cleaning difficulty existing for furnace heart pipe using whole quartz glass tube are short and dimension
It protects the high problem of replacement cost and proposes, concrete scheme can be found in the 0009th and 0031 section of the patent specification.It is objective
For, CN105271698B can fulfil it in the strong point of the 0017th section to 0020 section of specification three concluded aspect, but still
There are following shortcoming: first, (patent is three segments, and claims " upper section stone since whole furnace heart pipe is resolved into multiple segments
Ying Guan, middle section quartz ampoule and lower section quartz ampoule ") after again between upper and lower two adjacent segments pass through connector connect, Jin Er
That is package nitrogen protecting cover is set outside connector, thus there is the factor attended to one thing and lose sight of another, it is so-called to care for this and refer to, it can eliminate and adopt
Serve as the aforementioned shortcoming of furnace heart pipe generation with whole branch quartz glass tube, it is so-called to lose that and refer to, in order to by the furnace heart of multiple segments
Pipe is connected to each other and should consider the sealing reliability of connecting portion, takes into account the convenience of connection again, thus need to connect
The sealing element served as by fluorine rubber ring is set between the end face of the furnace heart pipe pipeline section of upper and lower two adjacent segment in part, therefore not only
Cause connection to bother, and the manipulation strength of worker is big, and due to connection need by such as connector, sealing ring and
Nitrogen protecting cover etc. is set outside connector, thus link cost is big；Second, in order to make sealing ring above-mentioned play desired sealing
Effect, needs the upper surface in the lower end surface of upper section quartz ampoule, the upper surface of middle section quartz ampoule and lower end surface, lower section quartz ampoule
Sealed groove (the 0036th section of specification) is opened up or is formed, sealing ring is matched with sealed groove, then to sealed groove
The control precision of size must be very harsh, once because sealed groove size mismatches or sealing ring dislocation, all
It will lead to seal failure；Third, as is known in the industry, during being sintered to prefabricated rods loosening body, from prefabricated rods loosening body
The clast fallen can accumulate in the lumen of lower section quartz ampoule, or even can block to the air inlet on lower section quartz glass tube,
Process gas is influenced to enter inside furnace heart pipe, prefabricated rods loosening body is unable to reach expected dehydration and sintering effect, and to right
When the aforementioned clast accumulated in lower section quartz ampoule is cleared up, it need to successively release and unload nitrogen protecting cover and connector,
Thus cleaning work is cumbersome and time-consuming and laborious；Fourth, due to prefabricated rods loosening body be sintered during unavoidably
Fall stick there are prefabricated rods loosening body to fall off and/or be broken off situation, and since the bottom of the lower section quartz ampoule of the patent is envelope
It closes structure (following side is equipped with air inlet), thus once falls stick or breaking releasing, then it can be by lower section quartz ampoule under inertia impact
It smashes, it is necessary to get rid of the old to make way for the new, to cause significantly improving for preform preparation cost.
Invention patent mandate notification number CN105541103B be provided with " a kind of preform loosening body sintering equipment and its
Assembly method ", the furnace heart pipe which provides are the quartz glass tube of monoblock type, and a stone is arranged in the lumen lower section of furnace heart pipe
Cushion is arranged between quartzy inner sleeve and the lumen bottom wall of furnace heart pipe in English inner sleeve, and the small size fallen is buffered by cushion
The momentum of glass preform and reduce the risk (the 0043rd section of the 4th to 5 row of specification) that furnace heart pipe is cracked.Furthermore equipped with one
Lifting rod, by the lifting pike pole on lifting rod according to need to quartzy inner sleeve be removed or be returned furnace heart pipe.Although the patent formula can be
The technical effect of the 0029th section of its specification record is embodied to a certain extent, but there are still following deficiencies: first, due to the furnace heart
It manages relatively long, is typically prefabricated 2.5 to 3.5 times of the loose body length of stick, thus lifting hook hook is held by online assignment personnel's hand
The difficulty of the quartzy inner sleeve taken is relatively large, specifically, lifting rod end, that is, lower end lifting pike pole is difficult to be aligned and be preset in
Upper inner sleeve is covered in quartzy lifts hole；Second, lifting the end of pike pole due to during lifting pike pole hooks up quartzy inner sleeve
End face can be scraped with furnace heart inside pipe wall, there is the anxiety to furnace heart pipe damage；Third, due to falling stick or to be broken situation aforementioned
When, quartzy inner sleeve and the cushion being arranged between quartzy inner sleeve and the lumen bottom wall of furnace heart pipe are not enough to effectively keep out quartz
The momentum that glass preform breaks when falling, thus furnace heart pipe can still be cracked；Fourth, since furnace heart tube temperature degree is higher and length phase
To longer, furnace heart lumen can not be protruded by the limbs (i.e. hand) of online assignment personnel, thus hooks up quartzy inner sleeve using lifting hook
There is great risk in actual production or even may be considered can not be operable.
Pass through the analysis to above-mentioned two patents, it is believed that: the two respectively has unique advantage, but simultaneously there is also
The deficiency made up is needed, technical solution described below generates in this background.
Summary of the invention
The task of the utility model, which is to provide, a kind of to be had convenient for intraluminal from prefabricated to the furnace heart pipe of furnace heart tube body
The fine-powder and particle to fall off on stick loosening body is purged and uses and avoid having an impact sintering thermal field and avoid blocking up
It fills in port and uses guarantee dehydration and sintering effect, helps avoid falling off or being broken because of prefabricated rods loosening body undermining furnace heart pipe
Ontology and use and save significantly on use cost and embody safety, be conducive to simplify the structure to the sealed bottom of furnace heart lumen
And by facilitate operation, be beneficial to embody the ideal sealing effect to furnace heart lumen bottom and use and ensure that the furnace heart is intraluminal
The preform sintering furnace heart pipe structure of the stability of process gas.
What the task of the utility model was performed by, a kind of preform sintering furnace heart pipe structure, including structure
One furnace heart tube body of Cheng Youlu heart lumen, the top of the furnace heart tube body is located in a sintering furnace body simultaneously in a state of use
And the top of sintering furnace body is leant out, and the lower part of furnace heart tube body probes into a melt pit equipped with melt pit sealing cover, the burning
Freezing of a furnace ontology is supported on a pylon, and the pylon is supported on terrace in the position for the top for corresponding to the melt pit, feature
Be that the furnace heart lumen is penetrated through from the top of the furnace heart tube body to lower part, furnace heart tube body lower part and in correspondence
Accent seals under the position of the lower accent of furnace heart lumen is connected with a furnace heart lumen for applying sealing to the cavity of resorption cause for gossip
Mechanism, the melt pit top and correspond to melt pit sealing cover lower section position be provided with the furnace heart tube body bearing
Mechanism, the lower support of furnace heart tube body is on the furnace heart tube body supporting device.
In a specific embodiment of the utility model, the furnace heart tube body top and surround furnace heart pipe
The surrounding composition of ontology has support flange on a furnace heart tube body, and support flange is supported on the burning on the furnace heart tube body
The top of the freezing of a furnace ontology and position of support flange is equipped with one for the furnace heart on the corresponding furnace heart tube body
Accent sealing cover on the furnace heart lumen of the upper accent sealing of lumen.
In another specific embodiment of the utility model, the lower part of the furnace heart tube body, which is constituted, a taper
Mouthful, the smaller diameter end of the conical opening is towards lower and have in the port position of the smaller diameter end around the surrounding composition of smaller diameter end
One sealing mechanism mounting flange, accent sealing mechanism is connect with the sealing mechanism mounting flange under the furnace heart lumen,
And the conical opening is supported on the furnace heart tube body supporting device.
In another specific embodiment of the utility model, the conical opening side and corresponding to it is described
The position of the top of sealing mechanism mounting flange match be connected to one communicated with the furnace heart lumen be used for draw into furnace heart lumen
Enter the furnace heart lumen intake interface of process gas.
In another specific embodiment of the utility model, accent sealing mechanism includes a stone under the furnace heart lumen
English sealing plate and one group of quartz sealing plate pinch, quartzy sealing plate are corresponding to the lower section of the sealing mechanism mounting flange
Position and the sealing of sealing mechanism mounting flange cooperate and close to the lower accent, and one group of quartz sealing plate pinch surrounds stone
English sealing plate it is multiple circumferentially spaced, which respectively has pinch opening, and close in the group quartz
Lock screw is respectively arranged in the top of sealing plate pinch, and pinch opening is open towards quartzy sealing plate, lock screw corresponding to pinch, institute
The edge for stating sealing mechanism mounting flange and the quartzy sealing plate is corresponding to one group of quartz sealing plate pinch
Position matches with pinch opening and is locked by the lock screw.
In the utility model there are one in specific embodiment, the sealing mechanism mounting flange is towards the stone
One side surface of English sealing plate is configured to frosting, and quartzy sealing plate is towards the surface of the side of sealing mechanism mounting flange
It equally constitutes as frosting.
In the utility model more and in a specific embodiment, the furnace heart tube body supporting device includes sunpender
Crossbeam, sunpender, graphite grillage and a pair of of graphite plate, suspender crossbeam correspond to the lower section of the melt pit sealing cover, and the sunpender
For the two supports of crossbeam on the terrace on the top of the melt pit, the quantity of sunpender has the circumferentially-spaced distribution around graphite grillage
One group, the middle part of the upper end of the sunpender and suspender crossbeam connects, and a pair of of graphite plate is shelved with the state for the cooperation that faces each other
On graphite grillage, the aspectant side to graphite plate middle part and correspond to the conical opening position respectively open
Equipped with a graphite plate conical opening bearing engagement chamber, the conical opening is supported on graphite plate conical opening bearing engagement chamber, graphite
Grillage is connect together with a pair of of graphite plate with the lower end of the sunpender.
In a specific embodiment in turn of the utility model, respectively offered in the four corners of the graphite grillage
One graphite grillage sunpender connecting hole, and on a pair of of graphite plate and in the position for corresponding to graphite grillage sunpender connecting hole
It sets and respectively offers a pair of of sunpender relief hole, sequentially pass through sunpender relief hole and graphite grillage sunpender by the lower end of the sunpender
Connecting hole and make the graphite grillage together with a pair of of graphite plate and sunpender lower end connect.
The utility model again more and in a specific embodiment, be provided in the melt pit melt pit ventilation
Air inlet pipe, the melt pit ventilation air inlet pipe air inlet of the upper end of melt pit ventilation air inlet pipe extend to the top of the melt pit sealing cover
And it communicates with the outside world, and the melt pit ventilation air inlet pipe gas outlet of the lower end of melt pit ventilation air inlet pipe is stretched over the lower part of melt pit,
Melt pit ventilation escape pipe, the melt pit ventilation escape pipe air inlet of the lower end of melt pit ventilation escape pipe are fixed on the pylon
It mouthful is stretched in melt pit by way of melt pit sealing cover, and the melt pit ventilation escape pipe gas outlet of the upper end of melt pit ventilation escape pipe and outer
Boundary communicates；The bottom of melt pit is provided with a pernicious gas detection sensor, harmful gas is chlorine.
In the utility model again and then in a specific embodiment, the process gas is chlorine and helium.
One of the technical effect of technical solution provided by the utility model, due to being designed as furnace heart lumen from furnace heart pipe sheet
The upper end of body is penetrated through to lower end and accent is close in the case where corresponding to the position of lower accent of furnace heart lumen and being connected with a furnace heart lumen
Sealing mechanism, thus working as will the implementations such as the fine-powder to fall off from prefabricated rods loosening body intraluminal to the furnace heart and particle cleaning
When, as long as accent sealing mechanism under removal furnace heart lumen, to can avoid accumulating in the intraluminal sundries of the furnace heart to sintering
Thermal field has an impact and avoids blocking furnace heart lumen intake interface, ensures dehydration and sintering effect；Two, due to working as prefabricated rods
When falling stick or disconnected stick, barred body, which can impact and break through accent sealing mechanism under furnace heart lumen, to be entered in melt pit, because without damaging
And furnace heart tube body and be able to ensure safety；Three, since accent sealing mechanism structure is simple under furnace heart lumen, thus operate
It is convenient；Four, since accent sealing mechanism can play ideal sealing function to the lower accent of furnace heart lumen under furnace heart lumen, because
And it can ensure the stability of the intraluminal process gas of the furnace heart.
Detailed description of the invention
Fig. 1 is the embodiments of the present invention schematic diagram.
Fig. 2 is the detailed construction of accent sealing mechanism and furnace heart tube body supporting device under furnace heart lumen shown in FIG. 1
Figure.
Specific embodiment
In order to which the technical essence of the utility model and beneficial effect is more clearly understood, applicant is below with reality
The mode for applying example elaborates, but is not limitation to the utility model, any foundation to the description of embodiment
The made only formal but not substantive equivalent transformation of the utility model design is regarded as the utility model
Technical solution scope.
The concept of all directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description
By taking the location of Fig. 1 state as an example, thus it cannot be understood as to the special of technical solution provided by the utility model
It limits.
Referring to Figure 1, the furnace heart tube body 1 for constituting and having furnace heart lumen 11 is shown, the top of the furnace heart tube body 1 exists
It is located in a sintering furnace body 2 and leans out the top of sintering furnace body 2 under use state, and the lower part of furnace heart tube body 1 is visited
Enter in a melt pit 3 equipped with melt pit sealing cover 31, aforementioned sintering furnace body 2 is supported on a pylon 4, and the pylon 4 is in correspondence
It is supported on terrace in the position of the top of aforementioned melt pit 3.
In the present embodiment, furnace heart tube body 1 above-mentioned is that purity quartz glass pipe for high for example congratulates Li Shi quartz glass tube, thereon
Portion is located at the centre of sintering furnace body 2, and sintering furnace body 2 is alternatively referred to as heater.
Technical essential as technical solution provided by the utility model: aforementioned furnace heart lumen 11 is from aforementioned furnace heart tube body
1 top penetrates through that (bottom of the furnace heart tube body 1 in prior art is closed, i.e. bottom wall and 1 structure of furnace heart tube body to lower part
Become one structure), furnace heart tube body 1 lower part and be connected with one in the position of lower accent for corresponding to furnace heart lumen 11
Accent sealing mechanism 5 under furnace heart lumen for applying sealing to aforementioned cavity of resorption cause for gossip, aforementioned melt pit 3 top and in correspondence
The position of the lower section of melt pit sealing cover 31 is provided with a furnace heart tube body supporting device 6, the lower support of furnace heart tube body 1 exists
On the furnace heart tube body supporting device 6.
It refers to Fig. 2 and combines Fig. 1, the top in aforementioned furnace heart tube body 1 and the surrounding around furnace heart tube body 1
Composition has support flange 12 on a furnace heart tube body, and support flange 12 is supported on aforementioned sintering furnace sheet on the furnace heart tube body
The top of the body 2 and position of support flange 12 is equipped with one for aforementioned furnace heart lumen on the corresponding furnace heart tube body
The material of 11 upper accent sealing is preferably accent sealing cover 13 on the furnace heart lumen of quartz plate.
Constituting in the lower part of aforementioned furnace heart tube body 1 has a conical opening 14, the smaller diameter end of the conical opening 14 towards it is lower simultaneously
And have a sealing mechanism mounting flange 141 around the surrounding composition of smaller diameter end in the port position of the smaller diameter end, it is aforementioned
Furnace heart lumen under accent sealing mechanism 5 connect with the sealing mechanism mounting flange 141, and aforementioned conical opening 14 is supported on
On furnace heart tube body supporting device 6 above-mentioned.
Aforementioned conical opening 14 side and correspond to aforementioned seal mechanism mounting flange 141 top position
Be connected to one communicated with aforementioned furnace heart lumen 11 for into furnace heart lumen 11 introduce process gas furnace heart lumen intake interface
142, process gas is chlorine and helium.
Continue to see Fig. 1 and Fig. 2, accent sealing mechanism 5 preferred under aforementioned furnace heart lumen rather than the structure that is absolutely limited to are such as
Under: including a quartzy sealing plate 51 and one group of quartz sealing plate pinch 52, quartzy sealing plate 51 is corresponding to aforementioned seal mechanism
The position of the lower section of mounting flange 141 and the sealing of sealing mechanism mounting flange 141 cooperate and close to aforementioned lower accent,
The quantity of one group of quartz sealing plate pinch 52 is three or four, and is equidistantly sowed discord around the circumferencial direction of quartzy sealing plate 51
Every distribution, which respectively has pinch opening 521, and on the top of the group quartz sealing plate pinch 52
Each that lock screw 522 is arranged, for pinch opening 521 towards quartzy sealing plate 51, lock screw 522 corresponds to pinch opening 521.Before
The edge for stating sealing mechanism mounting flange 141 and aforementioned quartzy sealing plate 51 is corresponding to one group of quartz sealing plate folder
The position of foot 52 matches with aforementioned pinch opening 521 and is locked by lock screw 522 above-mentioned.
Preferably, in order to promote the sealing effect between quartzy sealing plate 51 and sealing mechanism mounting flange 141, this reality
It is configured to frosting with a novel side surface by aforementioned seal mechanism mounting flange 141 towards aforementioned quartzy sealing plate 51,
And the surface of the side by quartzy sealing plate 51 towards sealing mechanism mounting flange 141 equally constitutes as frosting.
The structure that is preferred rather than being absolutely limited to of furnace heart tube body supporting device 6 above-mentioned is as follows: suspender crossbeam 61, sunpender
62, graphite grillage 63 and a pair of of graphite plate 64, suspender crossbeam 61 have parallel two, which corresponds to aforementioned
The lower section of melt pit sealing cover 31, and the two supports of the suspender crossbeam 61 are supported on melt pit 3 on the top of aforementioned melt pit 3
Near coal-mine (can also claim cheat edge) terrace on, the quantity of sunpender 62 has one group of the circumferentially-spaced distribution around graphite grillage 63,
The upper end of the sunpender 62 connect with the middle part of suspender crossbeam 61 and is locked by upper lock nut 621, and a pair of of graphite plate 64 is with that
This aspectant mated condition is shelved on graphite grillage 63, the aspectant side to graphite plate 64 middle part and
Position corresponding to aforementioned conical opening 14 respectively offers a graphite plate conical opening bearing engagement chamber 641, and conical opening 14 above-mentioned
It holds on graphite plate conical opening bearing engagement chamber 641, lower end of the graphite grillage 63 together with a pair of of graphite plate 64 and aforementioned sunpender 62
Connection.
From the signal of Fig. 1 and Fig. 2 and in conjunction with professional general knowledge: the quantity of aforementioned sunpender 62 has four, respectively corresponds
In the four corners of graphite grillage 63, and due to two (i.e. a pair of) that suspender crossbeam 61 has front and back parallel, thus every is hung
Bar crossbeam 61 is assigned two sunpenders 62.
As shown in Figure 2, a graphite grillage sunpender connecting hole 631 is respectively offered in the four corners of foregoing graphites grillage 63,
And a pair is offered on a pair of of graphite plate 64 above-mentioned and respectively in the position for corresponding to graphite grillage sunpender connecting hole 631 hang
Bar relief hole 642 sequentially passes through sunpender relief hole 642 and graphite grillage sunpender connecting hole by the lower end of aforementioned sunpender 62
631 and connect foregoing graphites grillage 63 with the lower end of sunpender 62 together with a pair of of graphite plate 64 above-mentioned.Rotation is also shown in figure
The lower lock nut 622 for being locked to graphite grillage 63 and a pair of of graphite plate 64 of lower end assigned in sunpender 62.
Preferably, be provided in melt pit 3 above-mentioned a melt pit ventilation air inlet pipe 32, the melt pit ventilate air inlet pipe 32 it is upper
The melt pit ventilation air inlet pipe air inlet 321 at end extends to the top of aforementioned melt pit sealing cover 31 and communicates with the outside world, and melt pit
The melt pit ventilation air inlet pipe gas outlet 322 of the lower end for air inlet pipe 32 of ventilating is stretched over the lower part of melt pit 3, on aforementioned pylon 4 with
Longitudinal state is fixed with melt pit ventilation escape pipe 41, the melt pit ventilation escape pipe air inlet of the lower end of melt pit ventilation escape pipe 41
Mouth 411 is stretched in melt pit 3 by way of melt pit sealing cover 31, and the melt pit ventilation escape pipe of the upper end of melt pit ventilation escape pipe 41 goes out
Port 412 communicates with the outside world；It is additionally provided with a pernicious gas detection sensor 33 in the bottom of melt pit 3, harmful gas is chlorine.
Prefabricated rods 7 are also shown in Fig. 1, which is loosening body above-mentioned, which passes through its caudal peduncle
71 hangings obtain glass fibers above-mentioned under the sintering of sintering furnace body 2 on the extension bar device 8 for being set to the top of pylon 4
Tie up prefabricated rods finished product.
There is the situation for falling powder from prefabricated rods and considering block etc. to be worth doing unavoidably during the sintering process, and the powder that falls and
Bits block etc. accumulates under furnace heart lumen on the quartzy sealing plate 51 of the structural system of accent sealing mechanism 5, therefore clear when to implement
When clean, then melt pit sealing cover 31 opened by operator and enter melt pit 3, pine opens lock screw 522 and removes one group of quartz sealing plate
Pinch 52 in the aforementioned powder on quartzy sealing plate 51 and considers productive set to be worth doing block removing, by inverse operation sequence above-mentioned after removing
Quartzy sealing plate 51 is set to be back to the sealing state in the lower accent to furnace heart lumen 11.
When prefabricated rods 7 fall stick or disconnected stick situation, then it can impact and smash quartzy sealing plate 51 falling to melt pit 3
Bottom is cheated, the prefabricated rods barred body 72 fallen is shown in phantom in Fig. 1.
In conclusion technical solution provided by the utility model compensates for the shortcoming in prior art, favorably accomplish
Invention task has faithfully fulfilled the technical effect that applicant refers in technical effect column above.
Claims (10)
1. a kind of preform sintering furnace heart pipe structure has a furnace heart tube body (1) of furnace heart lumen (11) including constituting,
The top of the furnace heart tube body (1) is located in a sintering furnace body (2) in a state of use and leans out sintering furnace body (2)
Top, and the lower part of furnace heart tube body (1) probes into a melt pit (3) equipped with melt pit sealing cover (31), the sintering furnace body
(2) it is supported on a pylon (4), and the pylon (4) is supported on terrace in the position for the top for corresponding to the melt pit (3),
It is characterized in that the top of the furnace heart lumen (11) from the furnace heart tube body (1) is penetrated through to lower part, in furnace heart tube body (1)
Lower part and be connected with one for applying sealing to the cavity of resorption cause for gossip in the position for the lower accent for corresponding to furnace heart lumen (11)
Furnace heart lumen under accent sealing mechanism (5), the melt pit (3) top and correspond to melt pit sealing cover (31) under
The position of side is provided with a furnace heart tube body supporting device (6), and the lower support of furnace heart tube body (1) is in the furnace heart tube body branch
It holds on mechanism (6).
2. preform sintering furnace heart pipe structure according to claim 1, it is characterised in that in the furnace heart pipe sheet
The top of body (1) and the surrounding for surrounding furnace heart tube body (1), which are constituted, support flange (12) on a furnace heart tube body, the furnace
Support flange (12) is supported on the top of sintering furnace body (2) and on the corresponding furnace heart tube body on heart tube body
The position of support flange (12) is equipped with a furnace heart lumen epicoele for the upper accent sealing to the furnace heart lumen (11)
Mouth sealing cover (13).
3. preform sintering furnace heart pipe structure according to claim 1, it is characterised in that the furnace heart tube body
(1) lower part, which is constituted, a conical opening (14), and the smaller diameter end of the conical opening (14) is towards end lower and in the smaller diameter end
There are a sealing mechanism mounting flange (141), accent under the furnace heart lumen in oral area position around the surrounding composition of smaller diameter end
Sealing mechanism (5) is connect with the sealing mechanism mounting flange (141), and the conical opening (14) is supported on the furnace heart
On tube body supporting device (6).
4. preform sintering furnace heart pipe structure according to claim 3, it is characterised in that in the conical opening
(14) side and in the position for corresponding to the top of the sealing mechanism mounting flange (141) with being connected to one and the furnace
The furnace heart lumen intake interface (142) for the introducing process gas into furnace heart lumen (11) that heart lumen (11) communicates.
5. preform sintering furnace heart pipe structure according to claim 3, it is characterised in that under the furnace heart lumen
Accent sealing mechanism (5) includes that a quartzy sealing plate (51) and one group of quartz sealing plate pinch (52), quartzy sealing plate (51) exist
Match with sealing mechanism mounting flange (141) sealing the position of lower section corresponding to the sealing mechanism mounting flange (141)
Merge and the lower accent is closed, one group of quartz sealing plate pinch (52) surrounds the circumferencial direction interval of quartzy sealing plate (51)
Distribution, the group quartz sealing plate pinch (52) respectively have a pinch to be open (521), and in the group quartz sealing plate pinch (52)
Top is respectively arranged lock screw (522), and pinch is open (521) towards quartzy sealing plate (51), and lock screw (522) corresponds to folder
Foot is open (521), and the edge of the sealing mechanism mounting flange (141) and the quartzy sealing plate (51) is in correspondence
In the position of one group of quartz sealing plate pinch (52) be open with the pinch (521) match and by the lock screw
(522) it locks.
6. preform sintering furnace heart pipe structure according to claim 5, it is characterised in that the sealing mechanism connects
One side surface of acting flange disk (141) towards the quartzy sealing plate (51) is configured to frosting, and quartzy sealing plate (51) court
It equally constitutes to the surface of the side of sealing mechanism mounting flange (141) as frosting.
7. preform sintering furnace heart pipe structure according to claim 3, it is characterised in that the furnace heart pipe sheet
Body supporting device (6) includes suspender crossbeam (61), sunpender (62), graphite grillage (63) and a pair of of graphite plate (64), suspender crossbeam
(61) correspond to the lower section of the melt pit sealing cover (31), and the two supports of the suspender crossbeam (61) are in the melt pit (3)
Top terrace on, the quantity of sunpender (62) have around graphite grillage (63) circumferentially-spaced distribution one group, the sunpender
(62) upper end is connect with the middle part of suspender crossbeam (61), and a pair of of graphite plate (64) is shelved on the state for the cooperation that faces each other
On graphite grillage (63), the aspectant side to graphite plate (64) middle part and correspond to the conical opening (14)
Position respectively offer a graphite plate conical opening bearing engagement chamber (641), the conical opening (14) is supported on graphite plate taper
On mouth bearing engagement chamber (641), graphite grillage (63) is connect together with a pair of of graphite plate (64) with the lower end of the sunpender (62).
8. preform sintering furnace heart pipe structure according to claim 7, it is characterised in that in the graphite grillage
(63) four corners respectively offer a graphite grillage sunpender connecting hole (631), and on a pair of of graphite plate (64) simultaneously
And a pair of of sunpender relief hole (642) is respectively offered in the position for corresponding to graphite grillage sunpender connecting hole (631), it is hung by described
The lower end of bar (62) sequentially passes through sunpender relief hole (642) and graphite grillage sunpender connecting hole (631) and makes the graphite plate
Frame (63) is connect together with a pair of of graphite plate (64) with the lower end of sunpender (62).
9. preform sintering furnace heart pipe structure according to claim 1, it is characterised in that in the melt pit (3)
Inside it is provided with melt pit ventilation air inlet pipe (32), the melt pit ventilation air inlet pipe air inlet of the upper end of melt pit ventilation air inlet pipe (32)
(321) it extends to the top of the melt pit sealing cover (31) and communicates with the outside world, and the lower end of melt pit ventilation air inlet pipe (32)
Melt pit ventilation air inlet pipe gas outlet (322) be stretched over the lower parts of melt pit (3), it is logical that a melt pit is fixed on the pylon (4)
Melt pit ventilation escape pipe air inlet (411) of gas escape pipe (41), the lower end of melt pit ventilation escape pipe (41) is close by way of melt pit
Capping (31) is stretched in melt pit (3), and the melt pit of the upper end of melt pit ventilation escape pipe (41) ventilates escape pipe gas outlet (412)
It communicates with the outside world；The bottom of melt pit (3) is provided with a pernicious gas detection sensor (33), harmful gas is chlorine.
10. preform sintering furnace heart pipe structure according to claim 4, it is characterised in that the process gas is
Chlorine and helium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759127.5U CN208454821U (en) | 2018-05-21 | 2018-05-21 | Preform sintering furnace heart pipe structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759127.5U CN208454821U (en) | 2018-05-21 | 2018-05-21 | Preform sintering furnace heart pipe structure |
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| CN208454821U true CN208454821U (en) | 2019-02-01 |
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| CN201820759127.5U Withdrawn - After Issue CN208454821U (en) | 2018-05-21 | 2018-05-21 | Preform sintering furnace heart pipe structure |
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| CN (1) | CN208454821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409128A (en) * | 2018-05-21 | 2018-08-17 | 青海中利光纤技术有限公司 | Preform sintering stove heart pipe structure |
-
2018
- 2018-05-21 CN CN201820759127.5U patent/CN208454821U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409128A (en) * | 2018-05-21 | 2018-08-17 | 青海中利光纤技术有限公司 | Preform sintering stove heart pipe structure |
| CN108409128B (en) * | 2018-05-21 | 2023-12-01 | 青海中利光纤技术有限公司 | Furnace core tube structure for sintering optical fiber preform |
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