CN207832016U - A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure - Google Patents
A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure Download PDFInfo
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- CN207832016U CN207832016U CN201820044981.3U CN201820044981U CN207832016U CN 207832016 U CN207832016 U CN 207832016U CN 201820044981 U CN201820044981 U CN 201820044981U CN 207832016 U CN207832016 U CN 207832016U
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- heat exchanger
- exchanger tube
- sleeve pipe
- protection sleeve
- outer diameter
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Abstract
The utility model is related to a kind of thin tube plate heat exchanger tube head high-temperature hot protection structure, including protection sleeve pipe, the protection sleeve pipe is the open straight tube in both ends, and one end is equipped with the annular flange of evagination；The outer diameter of the protection sleeve pipe is less than the internal diameter of heat exchanger tube；The outer diameter of the flange is more than the outer diameter of the heat exchanger tube, and the protection sleeve pipe is made to be inserted into the heat exchanger tube, and the flange is made to be resisted against the end of the heat exchanger tube；Ceramic fiber paper is wound on the outer wall of the protection sleeve pipe, the gap between the protection sleeve pipe and the heat exchanger tube can be filled up.The utility model is designed reasonably, it is simple in structure, it is easy to use, the leakproofness of thermal protection structure can be effectively improved, reduces and the thermal deformation between thin tubesheet and heat exchanger tube better meets the demand of production moreover, being also convenient for replacing.
Description
Technical field
The utility model is related to a kind of petrochemical equipment structural members, especially a kind of to be suitable for thin tubesheet and heat exchanger tube junction
Thermal protection structure, specifically a kind of thin tube plate heat exchanger tube head high-temperature hot protection structure.
Background technology
Thin tube plate heat exchanger is the widely used heat-transfer equipment of petrochemical industry.Thin tube plate heat exchanger tube side side high temperature is situated between
The temperature of matter is very high, and very high thermal (temperature difference) stress is also easy to produce between thin tubesheet and heat exchange pipe head and is damaged.Previous high warm is anti-
Shield is mainly inserted into the porcelain bushing of one section of straight section in the arrival end of heat exchanger tube, has the following disadvantages：
One, high-temperature hot protection is poorly sealed, easily causes thin tube plate heat exchanger tube head local overheating.
Two, deformation between porcelain bushing and thin tubesheet and heat exchanger tube is easy to be squeezed and destroy.
Three, porcelain bushing is not easy to replace.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, it is anti-to provide a kind of thin tube plate heat exchanger tube head high warm
Protection structure can improve the leakproofness of thermal protection structure, reduce thermal deformation and better meet production moreover, being also convenient for replacing
Demand.
The technical solution of the utility model is：
A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure, including protection sleeve pipe, the protection sleeve pipe are opened for both ends
Spacious straight tube, one end are equipped with the annular flange of evagination；The outer diameter of the protection sleeve pipe is less than the internal diameter of heat exchanger tube；Outside the flange
Diameter is more than the outer diameter of the heat exchanger tube, so that the protection sleeve pipe is inserted into the heat exchanger tube, and the flange is made to be resisted against
The end of the heat exchanger tube；Ceramic fiber paper is wound on the outer wall of the protection sleeve pipe, the protection sleeve pipe and institute can be filled up
State the gap between heat exchanger tube.
Preferably, the protection sleeve pipe is made of ceramics.
Preferably, further including the ceramic fibre felt pan of circular ring shape, outer diameter is identical as the outer diameter of the flange, internal diameter with
The outer diameter of the heat exchanger tube is suitable, and thickness is suitable with the tube end stretching height of thin tubesheet, keeps the ceramics fine
Dimension felt pan can be socketed in the end of the heat exchanger tube, and closely fill the seam between the flange and thin tubesheet completely
Gap, and be flush with the outer rim of the flange.
The beneficial effects of the utility model：
The utility model is designed reasonably, it is simple in structure, it is easy to use, it can effectively improve the sealing of thermal protection structure
Property, reduce and the thermal deformation between thin tubesheet and heat exchanger tube better meets the demand of production moreover, being also convenient for replacing.
Description of the drawings
Fig. 1 is the scheme of installation of the utility model.
Fig. 2 is the protection sleeve pipe structural schematic diagram of the utility model.
In figure：1- protection sleeve pipes, 2- ceramic fibre felt pans, 3- ceramic fiber papers, 4- heat exchanger tubes, 5- thin tubesheets.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2.
A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure, including protection sleeve pipe 1.The protection sleeve pipe 1 is cylinder
Shape straight tube, is made of ceramics, and both ends are open, and the annular flange of evagination is equipped at its outer end.The outer diameter of the protection sleeve pipe 1 is small
In the internal diameter of heat exchanger tube 4, the difference about 3mm of the two.The outer diameter of the flange is more than the outer diameter of the heat exchanger tube 4, makes the guarantor
Protecting pipe 1 is inserted into the heat exchanger tube 4, and the flange is made to be resisted against the end of the heat exchanger tube 4.The protection sleeve pipe
Wind ceramic fiber paper 3 on 1 outer wall, and the thickness of the ceramic fiber paper 3 and the protection sleeve pipe 1 and the heat exchanger tube 4 it
Between gap it is suitable, the gap can be fully filled with.
When being installed due to heat exchanger tube 4 and thin tubesheet 5, the end of the heat exchanger tube 4 would generally stretch out the thin tubesheet 5 it
Outside, therefore, the utility model further includes the ceramic fibre felt pan 2 of circular ring shape, and outer diameter is identical as the outer diameter of the flange, in
Diameter is suitable with the outer diameter of the heat exchanger tube 4, and thickness is suitable with 4 end of the heat exchanger tube stretching height of thin tubesheet 5, makes described
Ceramic fibre felt pan 2 can be socketed in the end of the heat exchanger tube 4, and closely fill the flange and the light wall pipe completely
Gap between plate 5, and be flush with the outer rim of the flange.
When processing, the flange and 1 junction of the protection sleeve pipe can be polished into the circle of R=0.5mm or R=1.5mm
Arc transition better meets installation needs.
When equipment is run, high-temperature medium is entered by the inner cavity of protection sleeve pipe in heat exchanger tube.Since protection sleeve pipe, ceramics are fine
Dimension felt pan, ceramic fiber paper are excellent heat-barrier material, and thermal coefficient is low, can be effectively prevented thin tube plate heat exchanger tube head
Local overheating, play the role of reducing the thermal (temperature difference) stress between thin tubesheet and heat exchange pipe head, improve service life of equipment.
When needing replacing protection sleeve pipe, the flange outer rim of protection sleeve pipe is blocked using fixture, protection sleeve pipe is lightly past
Multiple rotation, so that it may it is very convenient with the interior extraction by it from heat exchanger tube, construction efficiency can be effectively improved.
The parts not involved in the utility model is the same as those in the prior art or can be realized by using the prior art.
Claims (3)
1. a kind of thin tube plate heat exchanger tube head high-temperature hot protection structure, including protection sleeve pipe, it is characterized in that the protection sleeve pipe is
The open straight tube in both ends, one end are equipped with the annular flange of evagination；The outer diameter of the protection sleeve pipe is less than the internal diameter of heat exchanger tube；It is described to turn over
The outer diameter on side is more than the outer diameter of the heat exchanger tube, so that the protection sleeve pipe is inserted into the heat exchanger tube, and make the flange
It is resisted against the end of the heat exchanger tube；Ceramic fiber paper is wound on the outer wall of the protection sleeve pipe, the protective case can be filled up
Gap between pipe and the heat exchanger tube.
2. thin tube plate heat exchanger tube head high-temperature hot protection structure according to claim 1, it is characterized in that the protection sleeve pipe
It is made of ceramics.
3. thin tube plate heat exchanger tube head high-temperature hot protection structure according to claim 1, it is characterized in that further including circular ring shape
Ceramic fibre felt pan, outer diameter is identical as the outer diameter of the flange, and internal diameter is suitable with the outer diameter of the heat exchanger tube, thickness
It is suitable with the tube end stretching height of thin tubesheet, so that the ceramic fibre felt pan is socketed in the heat exchanger tube
End, and the gap between the flange and thin tubesheet is closely filled completely, and be flush with the outer rim of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044981.3U CN207832016U (en) | 2018-01-11 | 2018-01-11 | A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044981.3U CN207832016U (en) | 2018-01-11 | 2018-01-11 | A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832016U true CN207832016U (en) | 2018-09-07 |
Family
ID=63392537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820044981.3U Active CN207832016U (en) | 2018-01-11 | 2018-01-11 | A kind of thin tube plate heat exchanger tube head high-temperature hot protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207832016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779358A (en) * | 2019-08-19 | 2020-02-11 | 四川奥格莱能源科技有限公司 | Loading and unloading type protection device for built-in tube type heat exchanger |
-
2018
- 2018-01-11 CN CN201820044981.3U patent/CN207832016U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779358A (en) * | 2019-08-19 | 2020-02-11 | 四川奥格莱能源科技有限公司 | Loading and unloading type protection device for built-in tube type heat exchanger |
| CN110779358B (en) * | 2019-08-19 | 2022-04-08 | 四川奥格莱能源科技有限公司 | Loading and unloading type protection device for built-in tube type heat exchanger |
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