CN206785807U - A kind of PTFE coats special pipe - Google Patents
A kind of PTFE coats special pipe Download PDFInfo
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- CN206785807U CN206785807U CN201720463353.4U CN201720463353U CN206785807U CN 206785807 U CN206785807 U CN 206785807U CN 201720463353 U CN201720463353 U CN 201720463353U CN 206785807 U CN206785807 U CN 206785807U
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- ptfe
- pipe
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- bolt
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Abstract
The utility model discloses a kind of PTFE coat special pipe, penetrated by using the oblate pipe of metal material in PTFE pipes, the special-shaped support column of oblate PTFE claddings is fabricated to, can be used as in the inner support of PTFE heat exchangers, plays effectively support and corrosion resistant effect.Using the support column, due to being made using metal hollow pipe, in the case of proof strength, weight and cost are reduced, in addition, oblate structure, its both sides is flat to be advantageous to being connected for other structures.
Description
Technical field
The technology of preparing of PTFE multiple tubes is the utility model is related to, more specifically refers to a kind of PTFE claddings special pipe.
Background technology
China's hazardous waste species is more, according to China《National Hazard waste register》Statistic of classification, the danger in China gives up
Thing shares 5 major classes, the hundreds of varieties of 47 groups.In recent years, only hazardous waste was annual all 1000 caused by industry
More than more ten thousand tons.Along with the used batteries, the life kind dangerous waste article such as fluorescent tube that increase rapidly, and various electronics
Class hazardous waste, definitely it is the surprising astronomical figure of a number.The hazardous waste of such scale is to environment particularly to underground
Water and soil threat are very big, once causing underground water and soil pollution, ecological environment can not almost reverse.
At present, domestic many dangerous waste disposal systems are substantially all using traditional cement kiln, chemical metallurgy kiln and stone
Ash furnace carries out dangerous waste processing.Its technique is also entirely that hazardous waste is disposed according to traditional incineration process flow, and
And due to being chemical industry waste mostly in all kinds of hazardous wastes of processing, contain substantial amounts of poisonous and harmful substance in its material, it is such as more
Chlordiphenyl, explosivity, radwaste containing organic phosphatization close waste, organic cyanogen compound, containing beryllium, containing chromium, cupric, containing arsenic, contain
Selenium, containing cadmium, containing antimony, mercurous, lead bearing waste and the waste of benzofuran containing polystream, containing polystream and dioxin waste, contain
A variety of high-risk wastes such as machine halogenated material waste, waste containing phenol, HW40, and these materials easily produce at a certain temperature
The characteristics such as raw crystallization, attachment, adhesion, also there is very strong corrosion simultaneously burning flue gas caused by these industrial dangerous wastes
Property, such phenomenon equally occurs in the occasions such as coal-fired power station boiler.
Therefore, under above-mentioned occasion, influenceed and limited by above-mentioned adverse circumstances using traditional metallic recuperator, without
Method effectively meets normal operation demand.In recent years, with the development of technology, fluoroplastics pipe heat exchanger is superpower corrosion-resistant with its
The features such as ability, heat transfer coefficient are big, heat exchanger service life is long, heat exchanger is in light weight under same load, in recent years by extensive
Concern.
But currently used for the fixation of the interior arrangement such as card, heat exchanger tube, heat exchanger tube positioner and branch inside heat exchanger
The framework of support is to be made to form by the angle steel of multiple stainless steels, in actual use, because blast furnace etc. uses ring
Border, smoke components are complicated, even if using the angle steel of stainless steel thick, solid again, disliked in high temperature, high pressure, high corrosion etc.
Under bad environment, it will soon corrode, once support frame is damaged, whole heat exchanger can cave in phenomenon, and consequence is extremely serious.
Utility model content
The purpose of this utility model is to be directed to drawbacks described above, a kind of PTFE claddings special pipe is proposed, available for heat exchanger
Inner support, play effectively support and corrosion-resistant effect.
To achieve these goals, the utility model uses following technical scheme.
A kind of PTFE coats special pipe, including the oblate pipe of metal material and the PTFE anti-corrosion layers that are coated on outside pipe, flat
Connecting hole is radially provided with the flat horizontal surface of pipe, a female screw connection is welded with connecting hole, so that bolt connection is fixed,
It also is provided with perforate corresponding with female screw connection on PTFE anti-corrosion layers, and PTFE anti-corrosion layers are by oblate pipe both ends sealed bundle
Cover.
Described connecting hole is axially distributed provided with corresponding several according to connection needs along oblate pipe.
Described bolt uses clad type anticorrosion fastening bolt, including bolt head, threaded rod and on bolt head
PTFE anti-corrosion layers, PTFE anti-corrosion layers are coated on the integument of bolt head outer surface and are connected in the ring-type of integument surrounding
Sealant.
Also pad is provided with PTFE pads between described bolt and connecting hole.
In above-mentioned technical proposal of the present utility model, PTFE of the present utility model coats special pipe, by using metal
The oblate pipe of material is penetrated in PTFE pipes, is fabricated to the special-shaped support column of oblate PTFE claddings, be can be used as changing in PTFE
The inner support of hot device, play effectively support and corrosion resistant effect.Using the support column, due to being made using metal hollow pipe,
In the case of proof strength, weight and cost are reduced, in addition, oblate structure, its both sides is flat to be easy to other structures
It is connected.
Brief description of the drawings
Fig. 1 is the radial cross-section of PTFE claddings special pipe of the present utility model；
Fig. 2 is the structure sectional view of clad type anticorrosion fastening bolt used by the utility model；
Fig. 3 is the structural representation for the embodiment that support column of the present utility model is applied in PTFE heat exchangers.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings.
PTFE cladding special pipes of the present utility model are as shown in figure 1, it mainly includes the oblate pipe 1 of metal material and cladding
PTFE anti-corrosion layers 2 outside pipe, connecting hole 3 are radially provided with the flat horizontal surface of oblate pipe 1, being welded with one in connecting hole 3 is also
The female screw connection 4 of metal material, so that bolt connection is fixed, available for will such as card, heat exchanger tube positioner it is other
Part is fixed on the special pipe, also be provided with PTFE anti-corrosion layers 2 with 4 corresponding perforate of female screw connection, be available for bolt
Penetrate, and the both ends of oblate pipe 1 are sealed and coated by PTFE anti-corrosion layers 2, and whole oblate pipe 1 is coated in PTFE anti-corrosion layers 2,
The corrosion resistance of whole support column can be improved, meanwhile, the oblate pipe 1 of metal material is employed again, is not only able to play effective branch
Support, ensures the effect of support strength, and its both sides flat horizontal surface is easy to the fastening of bolt, is advantageous to fixation and the peace of other parts
Dress.
Opening up for described connecting hole 3 can connect needs according to actual, be axially distributed provided with corresponding number along oblate pipe 1
It is individual.
Described bolt can use clad type anticorrosion fastening bolt 5 as shown in Figure 2, including bolt head 51, threaded rod
52 and the PTFE anti-corrosion layers on bolt head 51, PTFE anti-corrosion layers be coated on the integument of the outer surface of bolt head 51
53 and it is connected in the annular seal layer 54 of the surrounding of integument 53.Bolt head 51 can be all wrapped in by PTFE anti-corrosion layers in it
Portion, the bolt is avoided to be corroded.
In addition, can also be padded between described bolt and connecting hole 3 provided with PTFE pads 55, junction is more favorably improved
Sealing.
The preparation method of PTFE claddings special pipe of the present utility model, specifically includes following steps：
A. the oblate pipe 1 of metal material is used, and according to installation needs, number is radially opened up on the flat horizontal surface of oblate pipe 1
Individual corresponding connecting hole 3；
B., one female screw connection 4 is set in each connecting hole 3, and by being fixedly welded in connecting hole 3；
C. and axial length identical with oblate pipe 1 using radial direction girth is slightly longer than the PTFE pipes of oblate pipe 1, and will be oblate
Pipe 1 is penetrated in PTFE pipes, while penetrating, PTFE pipes is strutted into oblate PTFE corresponding with oblate pipe 1 and coated
Layer, and fitted with the outer wall of oblate pipe 1；
D. flat and Surface Welding at High Temperature will be pinched (see a in Fig. 3 beyond the opening part of the PTFE clads at the both ends of oblate pipe 1
Place), the both ends of oblate pipe 1 are sealed in PTFE clads；
E. perforate is carried out on the corresponding PTFE clads of connecting hole 3.
Incorporated by reference to shown in Fig. 3, special pipe is coated using PTFE of the present utility model, can be applied to inside PTFE heat exchangers,
Four sides are vertically arranged at, are used as support column 6, are also used as the connecting pole 8 of card 7, the upper end of connecting pole 8 is welded on flower
Intralamellar part, lower end pass through clad type anticorrosion fastening bolt (three clad type anticorrosion fastening bolts are employed in Fig. 3) and its
The support column 6 of homonymy is connected, and because whole inner support all employs PTFE claddings, can greatly improve it and be obtained under complex environment
Service life, and hollow tube, either materials or weight are used, it is few far beyond in traditional angle steel, and for using metal
Material requirement can decrease, greatly reduce manufacturing cost.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to illustrate that this practicality is new
Type, and be not used as to restriction of the present utility model, as long as in spirit of the present utility model, to described above
Change, the modification of embodiment will all fall in Claims scope of the present utility model.
Claims (4)
1. a kind of PTFE coats special pipe, it is characterised in that：Oblate pipe including metal material and the PTFE being coated on outside pipe are resistance to
Corrosion layer, connecting hole is radially provided with the flat horizontal surface of oblate pipe, a female screw connection is welded with connecting hole, so that bolt connects
Fixation is connect, also is provided with perforate corresponding with female screw connection on PTFE anti-corrosion layers, and PTFE anti-corrosion layers are by oblate pipe two
End sealing cladding.
2. PTFE as claimed in claim 1 coats special pipe, it is characterised in that：Described connecting hole is according to connection needs, edge
Oblate pipe is axially distributed provided with corresponding several.
3. PTFE as claimed in claim 1 coats special pipe, it is characterised in that：Described bolt is tight using clad type anticorrosion
Fixing bolt, including bolt head, threaded rod and the PTFE anti-corrosion layers on bolt head, PTFE anti-corrosion layers are coated on spiral shell
The integument of bolt head outer surface and the annular seal layer for being connected in integument surrounding.
4. the PTFE cladding special pipes as described in claim 1 or 3, it is characterised in that：Between described bolt and connecting hole also
Pad is provided with PTFE pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463353.4U CN206785807U (en) | 2017-04-28 | 2017-04-28 | A kind of PTFE coats special pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463353.4U CN206785807U (en) | 2017-04-28 | 2017-04-28 | A kind of PTFE coats special pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785807U true CN206785807U (en) | 2017-12-22 |
Family
ID=60709706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720463353.4U Active CN206785807U (en) | 2017-04-28 | 2017-04-28 | A kind of PTFE coats special pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN206785807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979205A (en) * | 2017-04-28 | 2017-07-25 | 上海金由氟材料股份有限公司 | A kind of PTFE claddings special pipe and preparation method thereof |
-
2017
- 2017-04-28 CN CN201720463353.4U patent/CN206785807U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979205A (en) * | 2017-04-28 | 2017-07-25 | 上海金由氟材料股份有限公司 | A kind of PTFE claddings special pipe and preparation method thereof |
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