CN111780594A - Graphite heat exchanger and shell leakage prevention method thereof - Google Patents
Graphite heat exchanger and shell leakage prevention method thereof Download PDFInfo
- Publication number
- CN111780594A CN111780594A CN202010765186.5A CN202010765186A CN111780594A CN 111780594 A CN111780594 A CN 111780594A CN 202010765186 A CN202010765186 A CN 202010765186A CN 111780594 A CN111780594 A CN 111780594A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- end plate
- tube
- graphite heat
- graphite
- 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.)
- Withdrawn
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 42
- 239000010439 graphite Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002265 prevention Effects 0.000 title claims description 5
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 210000005239 tubule Anatomy 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000007770 graphite material Substances 0.000 abstract description 7
- 239000007769 metal material Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/20—Fastening; Joining with threaded elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a graphite heat exchanger and a shell leakage-proof method thereof, wherein a shell part adopts a metal material, a pipe body part adopts a graphite material, a seal head and a flange plate which are arranged in a common shell-and-tube graphite heat exchanger are removed, a horn tube is adopted to extend out of an end plate, and the extending-out end plate is sealed by a sealing disc, so that the contact area between the graphite material and the metal material is reduced, namely the probability of leakage is reduced.
Description
Technical Field
The invention belongs to the field of heat exchangers, and particularly relates to a graphite heat exchanger and a shell leakage prevention method thereof.
Background
The tube side of the general graphite heat exchanger is made of impervious graphite materials and can resist the corrosion of corrosive process materials, and the shell side is made of metal materials and is communicated with neutral service media such as water, steam and the like, so that the graphite heat exchanger is suitable for the heat exchange process of the corrosive materials. Usually, the seal heads are adopted at two ends of the graphite heat exchange tube to prevent medium leakage, but because the difference between the thermal expansion coefficients of the tube pass graphite material and the shell pass metal material is large, the common graphite heat exchanger is easy to leak in the use process, and the reliability of the graphite heat exchanger is influenced.
Disclosure of Invention
In order to solve the problems, the invention designs a graphite heat exchanger, which structurally comprises: a heat exchanger shell and a heat exchanger tube body arranged in the heat exchanger shell; the heat exchanger shell comprises a cylinder, end plates at two ends of the cylinder, a medium inlet and a medium outlet on the cylinder; the heat exchanger tube body comprises a plurality of parallel graphite heat exchange tubes, pore plates are sleeved at two ends of each graphite heat exchange tube, and a funnel tube is fixed on one surface of each pore plate, which is far away from the corresponding graphite heat exchange tube; the utility model discloses a funnel, including end plate, funnel pipe, end plate center threaded hole, the neck of funnel pipe has the external screw thread, external screw thread length is no longer than half of screw hole length, external screw thread department is fixed with the polytetrafluoroethylene area, and the screw in the end plate, graphite heat exchange tube one end screw in is kept away to the screw hole installs sealed dish, sealed dish is the sucking disc towards the end plate one side, and the centre has the screw thread post, screw thread post cylinder central part be the through-hole and cup joint in the tubule outer wall of funnel pipe, sealed dish another side is the.
Preferably, in the end plate, one of the side surfaces has an external thread and is screwed and installed on the cylinder.
Preferably, a polytetrafluoroethylene belt is fixed on the external thread of the end plate.
Preferably, one surface of the end plate far away from the cylinder body is provided with a convex or concave or handle structure.
Preferably, the sum of the length of the threaded column and the length of the external thread of the neck of the funnel pipe is equal to the thickness of the end plate.
Preferably, the sucker is made of silica gel.
Preferably, the outer wall of the small tube of the funnel tube is provided with a mounting rod or nut structure which is extended.
The shell leakage prevention method based on the graphite heat exchanger comprises the following steps: the method comprises the following steps:
s1, taking a plurality of graphite heat exchange tubes, arranging pore plates at two ends of each graphite heat exchange tube, and fixing a horn tube at the other end of each pore plate;
s2, mounting the flared tube at one end on an end plate which is integrally formed with the heat exchanger shell through a threaded structure of the neck of the flared tube, screwing the flared tube into the end plate by half of the length of a screw hole of the end plate, sleeving a sealing disc on the flared tube at the side on the other side of the end plate, and screwing the sealing disc into the screw hole on the side end plate from the other end of the flared tube;
s3, the end plate with the external thread is screwed in and installed at the other end of the heat exchanger shell, meanwhile, the threaded hole in the center of the end plate is also screwed in another horn tube, then the sealing disc is sleeved on the horn tube at the side, and the sealing disc is screwed in the threaded hole in the side end plate from the other end.
Preferably, one side of the sealing disc is a sucker, a threaded column is arranged in the middle of the sealing disc, the center of the column body of the threaded column is a through hole, and the other side of the sealing disc is a hard disc.
The shell part of the heat exchanger is made of metal materials, the tube body part of the heat exchanger is made of graphite materials, seal heads and flange plates of a common shell-and-tube graphite heat exchanger are removed, a mode that a horn tube extends out of an end plate and the position extending out of the end plate is sealed by a sealing disc is adopted, the contact area between the graphite materials and the metal materials is reduced, namely the probability of leakage is reduced, and the joint part of the graphite materials and the metal materials is sealed by soft sealing materials, so that the heat exchanger can adapt to the thermal expansion change between the two materials, has good sealing effect, and has technical progress in the field.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
FIG. 2 is a cross-sectional view of the seal disk.
Detailed Description
Example 1
As shown in fig. 1 and 2, the graphite heat exchanger of the present invention includes: a heat exchanger shell and a heat exchanger tube body arranged in the heat exchanger shell; the heat exchanger shell comprises a cylinder body 1, end plates 7 at two ends of the cylinder body 1, a medium inlet 2 and a medium outlet 3 on the cylinder body 1; the heat exchanger tube body comprises a plurality of parallel graphite heat exchange tubes 4, pore plates 5 are sleeved at two ends of each graphite heat exchange tube 4, and a funnel tube 6 is fixed on one surface, far away from the graphite heat exchange tube 4, of each pore plate 5; end plate 7 center threaded hole, the neck of funnel 6 has external screw thread 10, external screw thread 10 length is no longer than half of screw hole length, external screw thread 10 department is fixed with the polytetrafluoroethylene area, and the screw in end plate 7, 4 one end screw ins of graphite heat exchange tube are kept away to the screw hole and sealed dish 8 is installed, sealed dish 8 is the sucking disc 22 towards end plate 7 one side, and the centre has threaded post 21, threaded post 21 cylinder central part be the through-hole and cup joint in 6 tubule outer walls of funnel, sealed dish 8 another side is round steel dish 23.
In more detail, the side surface of the upper end plate 7 is provided with external threads and is screwed on the cylinder 1, and the lower end plate 7 and the cylinder 1 are integrally formed.
In more detail, a teflon band is fixed on the external thread of the end plate 7.
In more detail, the end plate 7 has a convex structure on the side far from the cylinder 1.
In more detail, the length of the threaded column 21 is equal to the sum of the length of the external thread 10 on the neck of the funnel 6 and the thickness of the end plate 7.
In more detail, the suction cup 22 is made of silicone.
In more detail, the funnel tube 6 has a mounting rod 9 extending from the outer wall of the small tube, and the mounting rod 9 is fixed by screwing a straight rod with a thread at one end into the outer wall of the small tube.
Example 2
The shell leakage-proof method of the graphite heat exchanger comprises the following steps: the method comprises the following steps:
s1, taking a plurality of graphite heat exchange tubes, arranging pore plates at two ends of each graphite heat exchange tube, and fixing a horn tube at the other end of each pore plate;
s2, mounting the flared tube at one end on an end plate which is integrally formed with the heat exchanger shell through a threaded structure of the neck of the flared tube, screwing the flared tube into the end plate by half of the length of a screw hole of the end plate, sleeving a sealing disc on the flared tube at the side on the other side of the end plate, and screwing the sealing disc into the screw hole on the side end plate from the other end of the flared tube;
s3, the end plate with the external thread is screwed in and installed at the other end of the heat exchanger shell, meanwhile, the threaded hole in the center of the end plate is also screwed in another horn tube, then the sealing disc is sleeved on the horn tube at the side, and the sealing disc is screwed in the threaded hole in the side end plate from the other end.
More in detail, sealed dish one side is the sucking disc, and the centre has the screw thread post, screw thread post cylinder central part is the through-hole, and the another side is the stereoplasm disc.
More specifically, the screwing part related to the method is realized by structures such as bulges or depressions on the outer diameter of an end plate or a small pipe or a handle, and the like, so that the screwing part is convenient to assemble in sequence.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A graphite heat exchanger is characterized in that: comprises a heat exchanger shell and a heat exchanger tube body arranged in the heat exchanger shell; (ii) a The heat exchanger shell comprises a cylinder, end plates at two ends of the cylinder, a medium inlet and a medium outlet on the cylinder; the heat exchanger tube body comprises a plurality of parallel graphite heat exchange tubes, pore plates are sleeved at two ends of each graphite heat exchange tube, and a funnel tube is fixed on one surface of each pore plate, which is far away from the corresponding graphite heat exchange tube; the utility model discloses a funnel, including end plate, funnel pipe, end plate center threaded hole, the neck of funnel pipe has the external screw thread, external screw thread length is no longer than half of screw hole length, external screw thread department is fixed with the polytetrafluoroethylene area, and the screw in the end plate, graphite heat exchange tube one end screw in is kept away to the screw hole installs sealed dish, sealed dish is the sucking disc towards the end plate one side, and the centre has the screw thread post, screw thread post cylinder central part be the through-hole and cup joint in the tubule outer wall of funnel pipe, sealed dish another side is the.
2. The graphite heat exchanger of claim 1, wherein: and in the end plates, one side surface is provided with external threads and is screwed and installed on the cylinder body.
3. The graphite heat exchanger of claim 2, wherein: and a polytetrafluoroethylene belt is fixed on the external thread of the end plate.
4. The graphite heat exchanger of claim 3, wherein: one surface of the end plate far from the cylinder body is provided with a convex or concave or handle structure.
5. The graphite heat exchanger of claim 4, wherein: the length of the threaded column is equal to the sum of the length of the external thread of the neck of the funnel pipe and the thickness of the end plate.
6. The graphite heat exchanger of claim 5, wherein: the sucking disc is made of silica gel.
7. The graphite heat exchanger of claim 6, wherein: the outer wall of the small tube of the funnel tube is provided with a mounting rod or nut structure which is extended.
8. A graphite heat exchanger shell leakage-proof method is characterized in that: the method comprises the following steps:
s1, taking a plurality of graphite heat exchange tubes, arranging pore plates at two ends of each graphite heat exchange tube, and fixing a horn tube at the other end of each pore plate;
s2, mounting the flared tube at one end on an end plate which is integrally formed with the heat exchanger shell through a threaded structure of the neck of the flared tube, screwing the flared tube into the end plate by half of the length of a screw hole of the end plate, sleeving a sealing disc on the flared tube at the side on the other side of the end plate, and screwing the sealing disc into the screw hole on the side end plate from the other end of the flared tube;
s3, the end plate with the external thread is screwed in and installed at the other end of the heat exchanger shell, meanwhile, the threaded hole in the center of the end plate is also screwed in another horn tube, then the sealing disc is sleeved on the horn tube at the side, and the sealing disc is screwed in the threaded hole in the side end plate from the other end.
9. A graphite heat exchanger housing leak prevention method, as defined in claim 8, wherein: one side of the sealing disc is provided with a sucker, the middle of the sealing disc is provided with a threaded column, the center of the threaded column body is provided with a through hole, and the other side of the sealing disc is provided with a hard disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765186.5A CN111780594A (en) | 2020-08-03 | 2020-08-03 | Graphite heat exchanger and shell leakage prevention method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765186.5A CN111780594A (en) | 2020-08-03 | 2020-08-03 | Graphite heat exchanger and shell leakage prevention method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111780594A true CN111780594A (en) | 2020-10-16 |
Family
ID=72766708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010765186.5A Withdrawn CN111780594A (en) | 2020-08-03 | 2020-08-03 | Graphite heat exchanger and shell leakage prevention method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111780594A (en) |
-
2020
- 2020-08-03 CN CN202010765186.5A patent/CN111780594A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201016 |