CN216668379U - Silicon carbide heat exchanger - Google Patents
Silicon carbide heat exchanger Download PDFInfo
- Publication number
- CN216668379U CN216668379U CN202122696513.9U CN202122696513U CN216668379U CN 216668379 U CN216668379 U CN 216668379U CN 202122696513 U CN202122696513 U CN 202122696513U CN 216668379 U CN216668379 U CN 216668379U
- Authority
- CN
- China
- Prior art keywords
- sealing
- silicon carbide
- carbide heat
- shell
- heat exchange
- 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.)
- Expired - Fee Related
Links
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 88
- 238000003825 pressing Methods 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a silicon carbide heat exchanger, and relates to the technical field of heat exchangers. The utility model comprises a housing; a plurality of silicon carbide heat exchange tubes which are transversely arranged in parallel are arranged in the shell, and two ends of the shell are respectively provided with an end enclosure; a plurality of baffle plates are vertically inserted into the plurality of silicon carbide heat exchange tubes; a first sealing tube plate and a second sealing plate layer are arranged between the shell and the end enclosure, and the first sealing tube plate is positioned on one side of the shell; the first sealing tube plate and the second sealing plate layer are detachably and fixedly arranged between the shell and the end enclosure through screw nuts; and the first sealing tube plate and the second sealing plate layer are provided with sealing holes for inserting the silicon carbide heat exchange tubes. The silicon carbide heat exchange tube has the advantages that the first sealing tube plate, the second sealing tube plate and the silicon carbide heat exchange tube are simple in structure and convenient to manufacture and install, the technical requirements on workers are reduced, the working efficiency is improved, the tube plates and the shell are effectively sealed, and the situation that a medium is not polluted in a strong-corrosion working condition environment is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of heat exchangers, and particularly relates to a silicon carbide heat exchanger.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. With the continuous development of the industry in China, heat exchange equipment is applied in large quantity no matter the requirement of the production process or the requirement of energy recovery, but the problem of heat exchanger damage caused by corrosion is quite serious in the use process. The corrosion damage of the heat exchanger not only causes the scrapping of equipment and the expenditure of a large amount of maintenance cost, but also directly influences the smooth production, and the loss caused by frequent parking is immeasurable.
The heat exchanger in the prior art has the following defects:
(1) the metal heat exchanger has high heat conductivity, but has poor corrosion resistance to strong acid and alkali media, for example, a stainless steel heat exchanger has high heat exchange efficiency, but is easily corroded by chloride ions to fail.
(2) The glass heat exchanger has good corrosion resistance, but has low pressure resistance, easy damage and leakage and low heat conductivity.
(3) The tetrafluoro heat exchanger has good corrosivity, but has low thermal conductivity and high cost, and is not easy to repair after being damaged.
(4) The glass lining heat exchanger has low heat conductivity, easy porcelain explosion and large volume.
(5) The graphite heat exchanger has low pressure resistance, low heat conductivity, high cost, high requirement on heat exchange media, and easy corrosion and leakage.
For example, the material and the form of the heat exchanger can be reasonably determined according to the requirements of media, the conditions of the production process, economic indexes and the like, so that the corrosion resistance of the heat exchanger is improved, and the service life of the heat exchanger is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a silicon carbide heat exchanger, which has the advantages that the first sealing tube plate, the second sealing tube plate and the silicon carbide heat exchange tube are simple in structure and convenient to manufacture and install, the technical requirements on workers are reduced, the working efficiency is improved, the effective sealing between the tube plates and a shell ensures that no medium is polluted in a strong-corrosion working condition environment, and the existing problems are solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a silicon carbide heat exchanger, which comprises a shell; a plurality of silicon carbide heat exchange tubes which are transversely arranged in parallel are arranged in the shell, and two ends of the shell are respectively provided with an end socket; a plurality of baffle plates are vertically inserted into the silicon carbide heat exchange tubes; a first sealing tube plate and a second sealing plate layer are arranged between the shell and the end enclosure, and the first sealing tube plate is positioned on one side of the shell; the first sealing tube plate and the second sealing plate layer are detachably and fixedly arranged between the shell and the seal head through screw nuts; the first sealing tube plate and the second sealing plate layer are both provided with sealing holes for inserting the silicon carbide heat exchange tubes; a thread groove is formed in one side, located at the end socket, of the second sealing plate layer, and the thread groove and the sealing hole are arranged coaxially; a sealing groove is formed in the end part of the thread groove; the thread groove is in threaded connection with a nut of an outer thread inner hole for fixing the silicon carbide heat exchange tube; the sealing groove and the silicon carbide heat exchange tube are sealed through a group of sealing parts; the end of the nut is provided with a pressing ring used for extruding the sealing component.
Further, a set of sealing member is including the three tetrafluoro sealed flat gasket that sets gradually and set up two adjacent tetrafluoro sealed flat gasket between the O type rubber circle.
Further, the first sealing tube sheet comprises a carbon steel sheet or a stainless steel sheet; and a sealing ring matched with the silicon carbide heat exchange tube is arranged at the end part of the sealing hole in the sealing tube plate.
Further, the material of the second sealing plate layer is a teflon plate.
Further, the first sealing tube plate is fixedly connected with a flange arranged outside the shell through bolts.
The utility model has the following beneficial effects:
1. the silicon carbide heat exchange tube has the advantages that the first sealing tube plate, the second sealing tube plate and the silicon carbide heat exchange tube are simple in structure and convenient to manufacture and install, the technical requirements on workers are reduced, and the working efficiency is improved.
2. The silicon carbide heat exchanger effectively ensures effective sealing between the tube plate and the silicon carbide heat exchange tube and between the tube plate and the shell, ensures that no medium is polluted under the environment of strong corrosion working condition, avoids damage to the heat exchanger caused by corrosion, and can meet the harsh standard of the medicine and food industry.
3. The heat conductivity of the silicon carbide heat exchanger is far higher than that of other corrosion-resistant materials, less heat exchange area is used under the same heat exchange efficiency, the size of the heat exchanger is allowed to be smaller, the occupied space is greatly reduced, and the use cost is reduced.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a silicon carbide heat exchanger according to the present invention;
FIG. 2 is a schematic partial structural view of a silicon carbide heat exchange tube and a second sealing tube plate;
in the drawings, the components represented by the respective reference numerals are listed below:
the heat exchange tube comprises a shell 1, a silicon carbide heat exchange tube 2, a head 3, a first sealing tube plate 4, a second sealing tube plate 5, a baffle plate 6, a sealing hole 7, a thread groove 8, a sealing groove 9, a nut 10, a sealing part 11, a pressing ring 12, a polytetrafluoroethylene sealing flat gasket 13 and an O-shaped rubber ring 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention is a silicon carbide heat exchanger, which includes a housing 1; a plurality of silicon carbide heat exchange tubes 2 which are transversely arranged in parallel are arranged in the shell 1, and two ends of the shell 1 are respectively provided with an end enclosure 3; a plurality of baffle plates 6 are vertically inserted into the plurality of silicon carbide heat exchange tubes 2; a first sealing tube plate 4 and a second sealing plate layer 5 are arranged between the shell 1 and the end enclosure 3, and the first sealing tube plate 4 is positioned on one side of the shell 1; the first sealing tube plate 4 and the second sealing plate layer 5 are detachably and fixedly arranged between the shell 1 and the seal head 3 through screw nuts; the first sealing tube plate 4 and the second sealing plate layer 5 are both provided with sealing holes 7 for inserting the silicon carbide heat exchange tubes 2;
a thread groove 8 is formed in one side, located at the end socket 3, of the second sealing plate layer 5, and the thread groove 8 and the sealing hole 7 are arranged coaxially; the end part of the thread groove 8 is provided with a sealing groove 9; the screw groove 8 is in threaded connection with a screw cap 10 of an outer screw inner hole for fixing the silicon carbide heat exchange tube 2; the sealing groove 9 and the silicon carbide heat exchange tube 2 are sealed through a group of sealing parts 11; the end of the nut 10 is provided with a pressing ring 12 for pressing a set of sealing members 11.
Wherein, a set of sealing member 11 includes three tetrafluoro sealed flat gaskets 13 that set up in proper order and sets up the O type rubber circle 14 between two adjacent tetrafluoro sealed flat gaskets 13.
Wherein the first sealing tube plate 4 comprises a carbon steel plate or a stainless steel plate; and a sealing ring matched with the silicon carbide heat exchange tube 2 is arranged at the end part of the sealing hole 7 on the sealing tube plate 4.
The material of the second sealing plate layer 5 is a teflon plate.
Wherein, the first sealing tube plate 4 is fixedly connected with a flange arranged outside the shell 1 through bolts.
The silicon carbide heat exchanger disclosed by the utility model has the specific application that: the silicon carbide heat exchanger effectively ensures that the tube plate and the silicon carbide heat exchange tube 2 are effectively sealed, the tube plate and the shell are effectively sealed, no medium pollution is ensured under a strong corrosion working condition environment, the damage to the heat exchanger caused by corrosion is avoided, and the harsh standard of the medicine and food industry can be met. The heat conductivity of the silicon carbide heat exchanger is far higher than that of other corrosion-resistant materials, less heat exchange area is used under the same heat exchange efficiency, the size of the heat exchanger is allowed to be smaller, the occupied space is greatly reduced, and the use cost is reduced. And the structure between the tube plate and the silicon carbide heat exchange tube 2 is simple, the manufacture and the installation are convenient, the technical requirements on workers are reduced, and the working efficiency is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A silicon carbide heat exchanger comprising a housing (1); a plurality of silicon carbide heat exchange tubes (2) which are transversely arranged in parallel are arranged in the shell (1), and two ends of the shell (1) are respectively provided with an end socket (3); a plurality of baffle plates (6) are vertically inserted into the silicon carbide heat exchange tubes (2);
the method is characterized in that:
a first sealing tube plate (4) and a second sealing plate layer (5) are arranged between the shell (1) and the seal head (3), and the first sealing tube plate (4) is positioned on one side of the shell (1); the first sealing tube plate (4) and the second sealing plate layer (5) are detachably and fixedly arranged between the shell (1) and the seal head (3) through screw nuts;
the first sealing tube plate (4) and the second sealing plate layer (5) are respectively provided with a sealing hole (7) for inserting the silicon carbide heat exchange tube (2);
a thread groove (8) is formed in one side, located on the end socket (3), of the second sealing plate layer (5), and the thread groove (8) and the sealing hole (7) are arranged coaxially;
a sealing groove (9) is formed in the end part of the thread groove (8); a nut (10) of an outer screw inner hole for fixing the silicon carbide heat exchange tube (2) is connected to the thread groove (8) in a threaded manner;
the sealing groove (9) and the silicon carbide heat exchange tube (2) are sealed through a group of sealing parts (11);
the end part of the screw cap (10) is provided with a pressing ring (12) used for extruding the sealing component (11).
2. The silicon carbide heat exchanger according to claim 1, wherein one set of the sealing members (11) comprises three tetrafluoro sealing flat gaskets (13) arranged in sequence and an O-ring rubber (14) arranged between two adjacent tetrafluoro sealing flat gaskets (13).
3. A silicon carbide heat exchanger according to claim 1 wherein the first sealing tube sheet (4) comprises a carbon or stainless steel sheet; and a sealing ring matched with the silicon carbide heat exchange tube (2) is arranged at the end part of a sealing hole (7) in the sealing tube plate (4).
4. A silicon carbide heat exchanger according to claim 1, wherein the second sealing plate layer (5) comprises a tetrafluoro plate.
5. Silicon carbide heat exchanger according to claim 1, characterised in that the first sealing tube plate (4) is fixedly connected to a flange arranged outside the shell (1) by means of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696513.9U CN216668379U (en) | 2021-11-05 | 2021-11-05 | Silicon carbide heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122696513.9U CN216668379U (en) | 2021-11-05 | 2021-11-05 | Silicon carbide heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216668379U true CN216668379U (en) | 2022-06-03 |
Family
ID=81781296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122696513.9U Expired - Fee Related CN216668379U (en) | 2021-11-05 | 2021-11-05 | Silicon carbide heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216668379U (en) |
-
2021
- 2021-11-05 CN CN202122696513.9U patent/CN216668379U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220603 |