CN215063919U - Graphite impregnated tetrafluoro shell and tube heat exchanger - Google Patents
Graphite impregnated tetrafluoro shell and tube heat exchanger Download PDFInfo
- Publication number
- CN215063919U CN215063919U CN202120423634.3U CN202120423634U CN215063919U CN 215063919 U CN215063919 U CN 215063919U CN 202120423634 U CN202120423634 U CN 202120423634U CN 215063919 U CN215063919 U CN 215063919U
- Authority
- CN
- China
- Prior art keywords
- graphite
- tube
- heat exchange
- heat exchanger
- exchange tube
- 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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a graphite flooding tetrafluoro shell and tube heat exchanger adopts machining to make the heat exchange tube of graphite tubulation with graphite rod, and the outward appearance of graphite tubulation is milled along length direction and is had the degree of depth to be less than half the axial slot that is on a parallel with the dabber of tube wall thickness, inserts metallic fin in the axial slot, at the length direction of graphite tubulation, is separated by one section distance and offers the degree of depth along circumference and is less than half sunken circumference slot of tube wall thickness. The utility model discloses its heat exchange effect of the tubular product that has inserted the fin is better than the heat transfer effect of simple tubular product, and the tubular product is convenient with being connected of pipe fitting.
Description
Technical Field
The utility model relates to a shell and tube heat exchanger that chemical industry used.
Background
The graphite tube adopted in the traditional graphite tube type heat exchanger is formed by extruding carbon raw materials, roasting and graphitizing, and the graphite tube is easy to have the problems of eccentricity, bending and the like. And the machining is not carried out after the forming, and due to the existence of eccentric bending, the local wall is too thin and the strength is insufficient in the machining.
Application No.: 2011101548753 the invention discloses a liquid distribution tube for a graphite heat exchanger, which comprises a liquid distribution tube body and is characterized in that: the liquid distribution pipe body is made of a tetrafluoroethylene pipe. The graphite material and the tetrafluoroethylene material have larger property difference and are not organically combined.
Application No. of the present applicant: 201410372284, the invention relates to a tube type graphite heat exchanger, the inner graphite tube is formed by connecting an upper tube plate, a heat exchange tube and a lower tube plate from top to bottom in sequence, the heat exchange tube is arranged between the upper tube plate and the lower tube plate in parallel, and two ends of the heat exchange tube are respectively fixed in the upper tube plate and the lower tube plate; although the heat exchange effect of the invention is good, the strength of the heat exchange tube is not high enough, the dimensional accuracy and the straightness are not reliably ensured, the surface corrosion resistance is weak, and the heat exchange effect is to be improved.
Disclosure of Invention
Utility model purpose:
the utility model provides a high, the effectual tetrafluoro graphite shell and tube heat exchanger that soaks of heat transfer of size precision.
The technical scheme is as follows:
the utility model provides a soak tetrafluoro graphite shell and tube heat exchanger adopts the graphite tubulation that machining made the graphite rod as the graphite heat exchange tube, and the outward appearance of graphite heat exchange tube mills along length direction to have the degree of depth to be less than half the axial slot that is on a parallel with the dabber of tube wall thickness, and although the attenuation of local wall, the pressure resistance still keeps enough pressure that can bear inside fluid. The metal fins or graphite fins (the fins are solid sheets similar to fish fins) are inserted into the axial grooves, so that the heat exchange and heat transfer area is increased, and the heat transfer of the heat exchange tube is facilitated.
Further preferably, in the length direction of the graphite array tube, at intervals (positions where the tube plates are placed), a circumferential groove with a recess depth less than half of the tube wall thickness is formed along the circumferential direction. The circumferential groove can form a good matching connection relation with the width of the tube plate, so that the tube plate can be conveniently and smoothly connected and fixed, the blocking phenomenon is not easy to occur, and the graphite heat exchange tube can be conveniently assembled and disassembled.
After machining, the graphite tube nest is soaked in the tetrafluoroethylene solution to form a standard tube, and then a firm tetrafluoroethylene surface soaking layer is formed on the surface of the graphite tube after heat treatment, so that the strength and the corrosion resistance of the tube are improved. The pipeline for various corrosive chemical substances is particularly suitable for the heat exchange pipe in heat exchange equipment. A tetrafluoroethylene surface impregnation layer is not required to be arranged in the axial grooves, so that the heat transfer effect of the pipe and the fins is improved.
Meanwhile, the inner surface and the outer surface of the pipe are smooth, and fluid can flow through the pipe from the inner side to the outer side. And meanwhile, the pipe plate is convenient to be tightly connected with the pipe plate.
Has the advantages that:
the graphite pipe of the utility model has smooth surface and high corrosion resistance; the heat exchange effect of the pipe inserted with the fins is much better than that of a pure pipe, the pipe is conveniently and closely matched with other pipe fittings in connection, and the pipe is convenient to detach, maintain and replace.
Drawings
Fig. 1 is an axial sectional structural view of the present application.
In the figure, 1-heat medium inlet; 2-high temperature end of graphite tube; 3-a tube plate; 4-low temperature end of graphite tube; 5-a refrigerant inlet; 6-graphite tube wall; 7-fin grooves; 8-fins.
Detailed Description
As shown in fig. 1, the graphite impregnated tetrafluoro tube type heat exchanger is formed by milling an axial groove parallel to a mandrel and having a depth less than half of the thickness of a tube wall on the outer surface of a graphite heat exchange tube along the length direction, and inserting a metal fin into the axial groove to form the graphite heat exchange tube with the metal fin.
The graphite heat exchange tube is provided with a sunken circumferential groove with the depth less than half of the thickness of the tube wall along the circumferential direction at intervals in the length direction of the graphite heat exchange tube, so that the circumferential groove and the tube plate are conveniently connected in a good matching manner.
The heat exchange effect of the finned tube is much better than that of a pure tube, and the tube is tightly connected with other tubes and is convenient to detach.
Claims (3)
1. The utility model provides a graphite flooding tetrafluoro shell and tube heat exchanger, adopts graphite rod to make graphite heat exchange tube wherein, its characterized in that: the outer surface of the graphite heat exchange tube is milled with an axial groove which is parallel to the mandrel and has a depth less than half of the tube wall thickness along the length direction, and a metal fin is inserted into the axial groove to form the graphite heat exchange tube with the fin.
2. The graphite-impregnated tetrafluoro shell and tube heat exchanger as claimed in claim 1, wherein: the graphite heat exchange tube is characterized in that a sunken circumferential groove with the depth less than half of the thickness of the tube wall is formed in the circumferential direction of the graphite heat exchange tube at intervals, and the circumferential groove is connected with the tube plate in a matched mode.
3. The graphite-impregnated tetrafluoro shell and tube heat exchanger as claimed in claim 1 or 2, wherein: the surface of the graphite heat exchange tube is provided with a tetrafluoroethylene impregnation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423634.3U CN215063919U (en) | 2021-02-26 | 2021-02-26 | Graphite impregnated tetrafluoro shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423634.3U CN215063919U (en) | 2021-02-26 | 2021-02-26 | Graphite impregnated tetrafluoro shell and tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215063919U true CN215063919U (en) | 2021-12-07 |
Family
ID=79253724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120423634.3U Active CN215063919U (en) | 2021-02-26 | 2021-02-26 | Graphite impregnated tetrafluoro shell and tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215063919U (en) |
-
2021
- 2021-02-26 CN CN202120423634.3U patent/CN215063919U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105387736A (en) | Efficient heat exchanger employing reinforced spiral pipe | |
| CN102116585A (en) | Coaxial heat exchanger | |
| WO2011043779A4 (en) | Dual enhanced tube for vapor generator | |
| US4744412A (en) | Double-wall tube heat exchanger | |
| CN201748825U (en) | Multilayer foam metal tube-and-shell heat exchanger | |
| CN113028864B (en) | Preparation method of graphite impregnated tetrafluoro shell and tube heat exchanger | |
| CN215063919U (en) | Graphite impregnated tetrafluoro shell and tube heat exchanger | |
| CN204830966U (en) | High -efficient condenser pipe is used to thermal power condenser | |
| CN113776207B (en) | Shell-and-tube phase-change heat storage device with conical spiral coil pipe structure | |
| CN207214870U (en) | Shell-and-tube oil water heat exchange device | |
| CN102022933A (en) | Wound pipe heat exchanger | |
| CN205373482U (en) | Energy -conserving heat accumulator of process of cold and hot reposition of redundant personnel | |
| CN205090854U (en) | Compound heat exchange tube of arris vertebra shape fin double metal | |
| CN105387744A (en) | Process energy-saving heat accumulator capable of separating cold fluid from heat fluid | |
| CN202109789U (en) | Heat exchange device using elliptic spiral heat exchange pipes | |
| CN102679789A (en) | Spiral corrugated pipe | |
| CN202109787U (en) | Heat exchange device utilizing flat-shaped spiral heat exchange pipes | |
| CN102095327A (en) | Heat exchange equipment using irregular-shaped heat exchange tubes | |
| CN202109788U (en) | Heat exchange equipment adopting spiral oval heat exchange tubes | |
| CN201935605U (en) | Spiral coil heat exchanger | |
| CN212747457U (en) | Spiral longitudinal groove heat exchange tube | |
| CN212778757U (en) | Spiral corrugated heat exchange tube with high heat transfer efficiency | |
| CN205940254U (en) | Efficient abnormal shape heat exchange tube | |
| CN211503327U (en) | Micro-channel pipeline heat exchanger | |
| CN211234042U (en) | Sleeve type heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |