CN212131741U - Tetrafluoro insert tube - Google Patents
Tetrafluoro insert tube Download PDFInfo
- Publication number
- CN212131741U CN212131741U CN202020575737.7U CN202020575737U CN212131741U CN 212131741 U CN212131741 U CN 212131741U CN 202020575737 U CN202020575737 U CN 202020575737U CN 212131741 U CN212131741 U CN 212131741U
- Authority
- CN
- China
- Prior art keywords
- tetrafluoro
- flange
- outer sleeve
- pipe
- straight pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Cookers (AREA)
Abstract
The utility model relates to an anticorrosion pipe fitting, specific tetrafluoro insert tube that says so. The device comprises a straight pipe, wherein an outer sleeve flange is arranged on the straight pipe and is detachably connected to an installation flange through a plurality of connecting pieces, and the installation flange is detachably connected to a reaction kettle through a plurality of connecting pieces; the outer surface of the straight pipe is sleeved with a tetrafluoro outer sleeve, the tetrafluoro outer sleeve extends from the discharge end of the straight pipe to the flange position of the outer sleeve, and the inner hole of the tetrafluoro outer sleeve is in interference fit with the outer surface of the straight pipe; and the upper end face, the lower end face and the inner hole end face of the mounting flange are coated with the molded PTFE plates. The utility model discloses simple structure, compactness, reasonable connect through coupling assembling detachable between mounting flange and the insert tube body, avoid the welding point to have the fracture condition that leads to appear, improved life, durable.
Description
Technical Field
The utility model relates to an anticorrosion pipe fitting, specific tetrafluoro insert tube that says so.
Background
In chemical production, materials need to be added or taken out of a reaction kettle, an insertion pipe is generally arranged on the reaction kettle, and the materials are added or taken out through the insertion pipe. Because the materials in the reaction kettle generally have corrosiveness, the inserting pipe generally adopts a plastic pipe or a stainless steel pipe, the plastic pipe is characterized by good corrosion resistance and insufficient strength, and the stainless steel pipe fitting has good strength but weak corrosion resistance, and the two pipe fittings can not completely meet the use requirements in the chemical production under severe environment. With the development of new material technology, the tetrafluoro anticorrosion pipe fitting begins to appear, and due to excellent anticorrosion performance and good structural strength, the tetrafluoro anticorrosion pipe fitting can completely meet the use requirements in a relatively severe environment in chemical production.
In the prior art, as shown in fig. 1, a tetrafluoro insert tube is generally provided with an inner tetrafluoro sleeve 2 and an outer tetrafluoro sleeve 3 which are respectively sleeved on the inner surface and the outer surface of a straight tube 1, and since a tetrafluoro material cannot be turned over in a large size, the tetrafluoro sleeve 3 is welded with a tetrafluoro material layer on the surface of an installation flange 4 at the installation flange 4 with a large diameter by adopting a welding process, and after long-term use, cracking easily occurs at a welding position, which affects normal use of the tetrafluoro insert tube.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned weak point to a tetrafluoro insert tube is provided, connects through coupling assembling detachable between mounting flange and the insert tube body, avoids the fracture condition that the welding point exists and leads to appear, has improved life, durable.
According to the technical scheme provided by the utility model, the tetrafluoro insert pipe comprises a straight pipe, a tetrafluoro inner sleeve is arranged in an inner hole of the straight pipe, the tetrafluoro inner sleeve extends from a feed end of the straight pipe to a discharge end of the straight pipe, the outer surface of the tetrafluoro inner sleeve is in interference fit with the surface of the inner hole of the straight pipe, an outer sleeve flange is arranged on the straight pipe, the outer sleeve flange is connected to a mounting flange through a plurality of connecting pieces in a detachable manner, and the mounting flange is connected to a reaction; the outer surface of the straight pipe is sleeved with a tetrafluoro outer sleeve, the tetrafluoro outer sleeve extends from the discharge end of the straight pipe to the flange position of the outer sleeve, and the inner hole of the tetrafluoro outer sleeve is in interference fit with the outer surface of the straight pipe; and the upper end face, the lower end face and the inner hole end face of the mounting flange are coated with the molded PTFE plates.
Furthermore, a polytetrafluoroethylene inner sleeve flange is arranged at the feed end of the polytetrafluoroethylene inner sleeve, an inner sleeve flange is arranged at the feed end of the straight pipe, the inner sleeve flange and the straight pipe are integrally formed, and the polytetrafluoroethylene inner sleeve flange is tightly attached to the surface of the inner sleeve flange.
Furthermore, the diameter of the outer sleeve flange is smaller than that of the mounting flange, one end of the tetrafluoro outer sleeve facing the outer sleeve flange is provided with a tetrafluoro outer sleeve flanging, and the tetrafluoro outer sleeve flanging is tightly attached to the lower surface of the outer sleeve flange.
Compared with the prior art, the utility model has the advantages that:
the utility model discloses simple structure, compactness, reasonable connect through coupling assembling detachable between mounting flange and the insert tube body, avoid the welding point to have the fracture condition that leads to appear, improved life, durable.
Drawings
Fig. 1 is a structural view of a tetrafluoro insert tube in the prior art.
Fig. 2 is a front view of the present invention.
Description of reference numerals: the device comprises a 1-straight pipe, a 2-tetrafluoro inner sleeve, a 3-tetrafluoro outer sleeve, a 4-mounting flange, a 5-inner sleeve flange, a 6-outer sleeve flange, a 7-die-pressing tetrafluoro plate, an 8-tetrafluoro inner sleeve flange and a 9-tetrafluoro outer sleeve flange.
Detailed Description
The invention will be further described with reference to the embodiments shown in the drawings to which:
as shown in figure 2, the utility model mainly comprises a straight pipe 1, and a polytetrafluoroethylene inner sleeve 2 is arranged in the inner hole of the straight pipe 1. The tetrafluoro inner sleeve 2 extends from the feed end of the straight pipe 1 to the discharge end of the straight pipe 1, and the outer surface of the tetrafluoro inner sleeve 2 is in interference fit with the surface of the inner hole of the straight pipe 1.
As shown in fig. 2, in order to improve the corrosion resistance of the feed end of the straight pipe 1, the feed end of the tetrafluoro inner sleeve 2 is provided with a tetrafluoro inner sleeve flange 8, the feed end of the straight pipe 1 is provided with an inner sleeve flange 5, and the inner sleeve flange 5 and the straight pipe 1 are integrally formed. The tetrafluoro inner sleeve flanging 8 is tightly attached to the surface of the inner sleeve flange 5. Because the size that the tetrafluoro material can turn over is limited, the diameter size of interior sleeve pipe flange 5 sets up less for interior sleeve pipe turn-ups 8 of tetrafluoro can completely cover in the surface of sleeve pipe flange 5.
As shown in fig. 2, in order to install the insertion tube on the reaction kettle, the straight tube 1 is provided with an outer sleeve flange 6, the outer sleeve flange 6 is detachably connected to the mounting flange 4 through a plurality of connecting pieces, and the mounting flange 4 is detachably connected to the reaction kettle through a plurality of connecting pieces.
As shown in figure 2, the outer surface of the straight pipe 1 is sleeved with the tetrafluoro outer sleeve 3, the tetrafluoro outer sleeve 3 extends from the discharge end of the straight pipe 1 to the position of an outer sleeve flange 6, and the inner hole of the tetrafluoro outer sleeve 3 is in interference fit with the outer surface of the straight pipe 1.
As shown in fig. 2, a tetrafluoro outer sleeve flange 9 is arranged at one end of the tetrafluoro outer sleeve 3 facing the outer sleeve flange 6, and the tetrafluoro outer sleeve flange 9 is tightly attached to the lower surface of the outer sleeve flange 6. The diameter of the outer sleeve flange 6 is smaller than that of the mounting flange 4, so that the tetrafluoro outer sleeve flange 9 can be attached to the lower end face of the outer sleeve flange 6.
As shown in fig. 2, the upper end face, the lower end face and the inner hole end face of the mounting flange 4 are coated and molded with the tetrafluoro plate 7 by a mold pressing process, and the corrosion of media in a reaction kettle to the mounting flange can be reduced by the molded tetrafluoro plate 7.
The utility model discloses a connect through coupling assembling detachable between the outer tube flange of mounting flange and inserted tube, avoid the welding point to have the fracture condition that leads to appear, improved life, durable. The diameter of the outer sleeve flange is smaller than that of the mounting flange, so that the tetrafluoro outer sleeve flange can be attached to the lower end face of the outer sleeve flange. The upper end face and the lower end face of the mounting flange and the end face of the inner hole are coated with the molded PTFE sheet by a molding process, and the molded PTFE sheet can reduce the corrosion of media in the reaction kettle to the mounting flange.
Claims (3)
1. The utility model provides a tetrafluoro insert tube, includes straight tube (1), set up interior sleeve pipe of tetrafluoro (2) in straight tube (1) hole, interior sleeve pipe of tetrafluoro (2) extend straight tube (1) discharge end from straight tube (1) feed end always, interior sleeve pipe of tetrafluoro (2) surface and straight tube (1) hole surface interference fit, characterized by: the straight pipe (1) is provided with an outer sleeve flange (6), the outer sleeve flange (6) is detachably connected to the mounting flange (4) through a plurality of connecting pieces, and the mounting flange (4) is detachably connected to the reaction kettle through a plurality of connecting pieces; the outer surface of the straight pipe (1) is sleeved with a tetrafluoro outer sleeve (3), the tetrafluoro outer sleeve (3) extends from the discharge end of the straight pipe (1) to the position of an outer sleeve flange (6), and an inner hole of the tetrafluoro outer sleeve (3) is in interference fit with the outer surface of the straight pipe (1); and the upper end surface, the lower end surface and the inner hole end surface of the mounting flange (4) are coated with the die-pressed tetrafluoro plate (7).
2. The tetrafluoro insert tube as set forth in claim 1, characterized in that: interior sleeve pipe (2) feed end of tetrafluoro is equipped with interior sleeve pipe turn-ups (8) of tetrafluoro, and straight tube (1) feed end is equipped with interior sleeve pipe flange (5), and interior sleeve pipe flange (5) and straight tube (1) integrated into one piece, interior sleeve pipe turn-ups (8) of tetrafluoro hug closely on interior sleeve pipe flange (5) surface.
3. The tetrafluoro insert tube as set forth in claim 1, characterized in that: the diameter of outer sleeve flange (6) is less than the diameter of mounting flange (4), and tetrafluoro outer sleeve (3) are equipped with tetrafluoro outer sleeve turn-ups (9) towards outer sleeve flange (6) one end, and tetrafluoro outer sleeve turn-ups (9) hug closely outer sleeve flange (6) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020575737.7U CN212131741U (en) | 2020-04-17 | 2020-04-17 | Tetrafluoro insert tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020575737.7U CN212131741U (en) | 2020-04-17 | 2020-04-17 | Tetrafluoro insert tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131741U true CN212131741U (en) | 2020-12-11 |
Family
ID=73688963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020575737.7U Active CN212131741U (en) | 2020-04-17 | 2020-04-17 | Tetrafluoro insert tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131741U (en) |
-
2020
- 2020-04-17 CN CN202020575737.7U patent/CN212131741U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201487430U (en) | Pipe fitting for connecting flanges of thin-walled metal pipes | |
| CN212131741U (en) | Tetrafluoro insert tube | |
| CN210003996U (en) | quick joint | |
| CN201593623U (en) | Loose joint ball valve | |
| CN215568751U (en) | Pipe fitting joint connecting mechanism and universal pipe | |
| CN206093241U (en) | Ni -based compound pipe | |
| CN209673164U (en) | One kind being used for ultrasonic wave/MEMS gas meter, flow meter rectifier | |
| CN209552876U (en) | Pipelines of automobile air conditioner coaxitron | |
| CN218494178U (en) | Composite sealing structure and air conditioner thereof | |
| CN212028775U (en) | Double-clamping-pressing type stainless steel pipe fitting | |
| CN201057334Y (en) | Steel-plastic composite positive elbow | |
| CN200965115Y (en) | Pipe joint member for thin-wall metal pipe | |
| CN214466939U (en) | Quick connector | |
| CN216447626U (en) | Round pipe with high-sealing reducing head | |
| CN100424395C (en) | Thin wall metal pipeline pipe connecting unit | |
| CN221034182U (en) | Water tap | |
| CN220435759U (en) | PVC pipe with good air tightness | |
| CN215721106U (en) | Integrated into one piece's business turn over water level case seat device | |
| CN216923498U (en) | Corrugated water pipe with connector | |
| CN212944285U (en) | Double-hole syringe | |
| CN220957382U (en) | Transition joint with filtering capability | |
| CN2911367Y (en) | Connection structure of aluminium-plastic pipe | |
| CN2364306Y (en) | Insertion type connecting pipe fitting for pipeline | |
| CN213899076U (en) | Engine oil scale assembly | |
| CN213768265U (en) | Fuel steam circulating pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |