CN203479133U - Protection device installed at connecting position of heat exchanging tube of heat exchanger and tube plate - Google Patents
Protection device installed at connecting position of heat exchanging tube of heat exchanger and tube plate Download PDFInfo
- Publication number
- CN203479133U CN203479133U CN201320623506.9U CN201320623506U CN203479133U CN 203479133 U CN203479133 U CN 203479133U CN 201320623506 U CN201320623506 U CN 201320623506U CN 203479133 U CN203479133 U CN 203479133U
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- Prior art keywords
- tube
- heat exchanger
- hole
- tube sheet
- heat exchanging
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- Expired - Fee Related
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Abstract
The utility model discloses a protection device installed at the connecting position of a heat exchanging tube of a heat exchanger and a tube plate, and relates to a protection device installed on the heat exchanger. The protection device aims to solve the problem that due to the fact that the position of a weld seam between the heat exchanging tube and the tube plate is flushed and corroded by liquid, cracks, damage and leakage are generated at the position of the weld seam. A through hole I is formed in the tube plate in the plate thickness direction, one end of the heat exchanging tube is inserted into the through hole I from one side plate face of the tube plate, the outer side wall of the heat exchanging tube is matched with the inner wall of the through hole I, one end of the heat exchanging tube is welded with the tube plate, one end of an anti-abrasion sleeve is inserted into the heat exchanging tube through the other side plate of the tube plate, the other end of the anti-abrasion sleeve is provided with an outer edge, the outer edge leans against the other side plate face of the tube plate in a attaching mode, the outer edge covers the welding position of the heat exchanging tube and the tube plate, a through hole II is formed in a flow baffle, the through hole II and an inner hole of the anti-abrasion sleeve are arranged coaxially, the flow baffle leans against the outer edge in an attaching mode and the flow baffle is fixedly connected with the tube plate. The protection device is used for preventing the connecting position of the heat exchanging tube and the tube plate from being corroded by liquid.
Description
Technical field
The utility model relates to a kind of protector being installed on heat exchanger.
Background technology
At present, the mode that the heat exchanger tube on shell-and-tube heat exchanger adopts welded and rolled tube joint to be combined with tube sheet type of attachment, described welded and rolled tube joint combination is stretched out tube sheet 2 to 3mm by heat exchanger tube and is welded; Postwelding pastes swollen by heat exchanger tube and tube sheet.To strengthen sealing, the vibration resistance of heat exchanger tube and tube sheet junction, can effectively reduce crevice corrosion simultaneously, this kind of structure can effectively reduce the crevice corrosion causing from tube sheet shell side side steam.But this structure is exposed to weld seam the tube side side of tube sheet, and weld seam can be subject to washing away and corroding of tube side side liquid, and liquid is lower in tube side effluent speed, or corrosive medium is when stronger, and the corrosion phenomenon of weld seam is comparatively serious.In actual motion, commissure occurs that the situation of crackle, breakage, leakage happens occasionally, and not only can reduce the heat exchange efficiency of heat exchanger, also can hide some dangers for for the safe operation of equipment.
Utility model content
The purpose of this utility model is to provide a kind of heat exchanger tube of heat exchanger and protector of tube sheet junction of being installed on, and to solve the commissure of heat exchanger tube and tube sheet, is subject to washing away of liquid and corrodes, and causes that commissure cracks, damaged, the problem revealed.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: a kind of heat exchanger tube of heat exchanger and protector of tube sheet junction of being installed on of the present utility model, describedly be installed on the heat exchanger tube of heat exchanger and the protector of tube sheet junction comprises Antiwear casing and flow-stopping plate, on described tube sheet, along thickness of slab direction, be processed with through hole one, insert in through hole one from the side plate face of tube sheet one end of heat exchanger tube, the lateral wall of heat exchanger tube matches with the inwall of through hole one, and heat exchanger tube one end and Tube-sheet Welding, insert heat exchanger tube from another lateral plates of tube sheet one end of Antiwear casing, the other end of Antiwear casing is provided with outer eaves, outer eaves is posted by described another lateral plates of tube sheet, and outer eaves covers the weld of described heat exchanger tube and tube sheet, on flow-stopping plate, be processed with through hole two, through hole two coaxially arranges with the endoporus of Antiwear casing, flow-stopping plate is posted by outer eaves, flow-stopping plate and tube sheet Joint.
The utility model compared with prior art has following beneficial effect:
Antiwear casing of the present utility model and flow-stopping plate all cover the weld seam of heat exchanger tube and tube sheet; make weld seam in enclosed environment; make weld seam obtain fabulous protection; thereby guaranteed welding quality; reduced replacing heat-exchange tube frequency; improve heat exchanger heat exchange efficiency, effectively safeguarded the continuous operation of heat exchanger, and ensured the security of operation of equipment, make relatively improve 20% the service life of heat exchanger tube.Of the present utility model simple and reliable for structure, meet the features such as structural design and requirement of strength, and described in heat exchanger tube 2, to be recessed in another lateral plates 2mm to 3mm place described in tube sheet 1 be weld seam to the end face of one end, make weld seam convenient welding and welding effect good, weld seam of the present utility model relative shortening weld interval 10 minutes to 30 minutes.
Accompanying drawing explanation
Fig. 1 is main cutaway view of the present utility model.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 explanation, present embodiment a kind of is installed on the heat exchanger tube of heat exchanger and the protector of tube sheet junction comprises Antiwear casing 3 and flow-stopping plate 4, on described tube sheet 1, along thickness of slab direction, be processed with through hole one, insert in through hole one from the side plate face of tube sheet 1 one end of heat exchanger tube 2, the lateral wall of heat exchanger tube 2 matches with the inwall of through hole one, and heat exchanger tube 2 one end and tube sheet 1 welding, insert heat exchanger tube 2 from another lateral plates of tube sheet 1 one end of Antiwear casing 3, the other end of Antiwear casing 3 is provided with outer eaves 3-1, outer eaves 3-1 is posted by described another lateral plates of tube sheet 1, and outer eaves 3-1 covers described heat exchanger tube 2 and the weld of tube sheet 1, on flow-stopping plate 4, be processed with through hole two 4-1, the endoporus of through hole two 4-1 and Antiwear casing 3 coaxially arranges, flow-stopping plate 4 is posted by outer eaves 3-1, flow-stopping plate 4 and tube sheet 1 Joint.
The specific embodiment two: in conjunction with Fig. 1 explanation, described in the end face of one end and tube sheet 1, the distance of another lateral plates is 2mm to 3mm described in the heat exchanger tube 2 of present embodiment.Meet design requirement.In present embodiment, undocumented technical characterictic is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 explanation, the outer tube wall of the heat exchanger tube 2 of present embodiment and the outer tube wall of the through hole one of tube sheet 1 and Antiwear casing 3 and the inner tubal wall of heat exchanger tube 2 are all affixed by pasting swollen mode.Meet instructions for use.In present embodiment, undocumented technical characterictic is identical with the specific embodiment one or two.
Operation principle
When liquid flows through from described opposite side via through holes two 4-1 of tube sheet 1, because flow-stopping plate 4 covers tube sheet 1 and outer eaves 3-1, liquid cannot be corroded by butt welded seam 5, and outer eaves 3-1 block weld seam 5, realized the second protection of butt welded seam 5.
Claims (3)
1. one kind is installed on the heat exchanger tube of heat exchanger and the protector of tube sheet junction, it is characterized in that: described protector comprises Antiwear casing (3) and flow-stopping plate (4), described tube sheet (1) is upper is processed with through hole one along thickness of slab direction, insert in through hole one from the side plate face of tube sheet (1) one end of heat exchanger tube (2), the lateral wall of heat exchanger tube (2) matches with the inwall of through hole one, and heat exchanger tube (2) one end and tube sheet (1) welding, insert heat exchanger tube (2) from another lateral plates of tube sheet (1) one end of Antiwear casing (3), the other end of Antiwear casing (3) is provided with outer eaves (3-1), outer eaves (3-1) is posted by described another lateral plates of tube sheet (1), and outer eaves (3-1) covers described heat exchanger tube (2) and the weld of tube sheet (1), on flow-stopping plate (4), be processed with through hole two (4-1), through hole two (4-1) coaxially arranges with the endoporus of Antiwear casing (3), flow-stopping plate (4) is posted by outer eaves (3-1), flow-stopping plate (4) and tube sheet (1) Joint.
2. the heat exchanger tube of heat exchanger and the protector of tube sheet junction of being installed on according to claim 1, is characterized in that: the distance of described another lateral plates of the end face of the described one end of heat exchanger tube (2) and tube sheet (1) is 2mm to 3mm.
3. the heat exchanger tube of heat exchanger and the protector of tube sheet junction of being installed on according to claim 1 and 2, is characterized in that: the inner tubal wall of the through hole one of the outer tube wall of heat exchanger tube (2) and tube sheet (1) and the outer tube wall of Antiwear casing (3) and heat exchanger tube (2) is all affixed by pasting swollen mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623506.9U CN203479133U (en) | 2013-10-10 | 2013-10-10 | Protection device installed at connecting position of heat exchanging tube of heat exchanger and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623506.9U CN203479133U (en) | 2013-10-10 | 2013-10-10 | Protection device installed at connecting position of heat exchanging tube of heat exchanger and tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479133U true CN203479133U (en) | 2014-03-12 |
Family
ID=50227449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623506.9U Expired - Fee Related CN203479133U (en) | 2013-10-10 | 2013-10-10 | Protection device installed at connecting position of heat exchanging tube of heat exchanger and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387445A (en) * | 2015-12-18 | 2016-03-09 | 哈尔滨锅炉厂有限责任公司 | Anti-flushing structure for water feeding inlet of high-pressure heater |
| CN111788452A (en) * | 2017-12-15 | 2020-10-16 | 阿法拉伐奥米有限公司 | Erosion-resistant device for shell-and-tube systems |
-
2013
- 2013-10-10 CN CN201320623506.9U patent/CN203479133U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387445A (en) * | 2015-12-18 | 2016-03-09 | 哈尔滨锅炉厂有限责任公司 | Anti-flushing structure for water feeding inlet of high-pressure heater |
| CN111788452A (en) * | 2017-12-15 | 2020-10-16 | 阿法拉伐奥米有限公司 | Erosion-resistant device for shell-and-tube systems |
| CN111788452B (en) * | 2017-12-15 | 2021-09-28 | 阿法拉伐奥米有限公司 | Erosion-resistant device for shell-and-tube systems |
| US11466942B2 (en) | 2017-12-15 | 2022-10-11 | Alfa Laval Olmi S.P.A | Anti-erosion device for a shell-and-tube equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20201010 |