CN202630779U - Welding structure of heat exchange tube and tube plate - Google Patents
Welding structure of heat exchange tube and tube plate Download PDFInfo
- Publication number
- CN202630779U CN202630779U CN 201220200072 CN201220200072U CN202630779U CN 202630779 U CN202630779 U CN 202630779U CN 201220200072 CN201220200072 CN 201220200072 CN 201220200072 U CN201220200072 U CN 201220200072U CN 202630779 U CN202630779 U CN 202630779U
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- CN
- China
- Prior art keywords
- tube
- heat exchanger
- heat exchange
- deep hole
- welding structure
- 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 - Lifetime
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Abstract
The utility model relates to the field of design and manufacture of heat exchangers, and in particular relates to a welding structure of a heat exchange tube and a tube plate. The welding structure is characterized by comprising the tube plate, wherein a deep hole is formed on one side of the tube plate, an expanded hole communicated with the deep hole is formed on the other side of the tube plate, a thread is formed on the inner wall of the expanded hole, the heat exchange tube is inserted into the deep hole, a straight tube with a locking ring is arranged in the expanded hole, one end of the straight tube is inserted in the heat exchange tube, an O-shaped sealing ring is arranged between the locking ring and the heat exchange tube, and the locking ring is provided with an external thread matched with the internal thread of the expanded hole. The welding structure can guarantee the strength and the sealing property of a welding joint between the heat exchange tube and the tube plate, prolongs the service lives of the heat exchange tube and the tube plate, and has good economical efficiency.
Description
Technical field
The utility model relates to the Welding Structure that design of heat exchanger is made field, especially heat exchanger tube and tube sheet.
Background technology
During design of heat exchanger is made, how to guarantee the intensity and the sealing property at heat exchanger tube and pipe sheet weld joint place, become one of key factor of heat exchanger quality quality.The heat exchanger tube of standard criterion recommendation at present and tube sheet adopt intensity weldering or intensity to expand; Or expanded and welded tube joint and usefulness; But the incompetent connected mode that adopts which kind of pattern; The welding point of heat exchanger tube and tube sheet all is exposed to side medium, because the corrosiveness of medium, the welding point of heat exchanger tube and tube sheet very easily produces corrosion leakage.Cause producing and stop replacing tube bank again.And to some important heat exchanger and reactor; Like methanol synthesis reactor; All require the welding point place of heat exchanger tube and tube sheet to have higher intensity and sealing property; The welding point and the apparatus body that guarantee heat exchanger tube and tube sheet have same equivalent life, can not leak and influence production because of the welding point of heat exchanger tube and tube sheet.
Summary of the invention
The utility model is to propose the Welding Structure of a kind of heat exchanger tube and tube sheet to above-mentioned prior art, not only can guarantee heat exchanger tube and tube sheet the welding point place intensity but also can guarantee its sealing.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: the Welding Structure of heat exchanger tube and tube sheet, and its difference is: it comprises tube sheet, tube sheet one side has deep hole; An other side has the reaming that connects with deep hole, and the reaming inwall has screw thread, is inserted with heat exchanger tube in the deep hole; The straight tube that has binding ring is installed in the reaming; Straight tube one end inserts in the heat exchanger tube, is provided with O-ring seals between binding ring, the heat exchanger tube, and binding ring has the outer silk with reaming internal thread phase configuration.
The major advantage of the utility model is: the utility model is in the welding point place intensity that guarantees heat exchanger tube and tube sheet, can guarantee its sealing again, has also prolonged the service life of heat exchanger tube and tube sheet simultaneously, has excellent economy.
Description of drawings
The Welding Structure figure of Fig. 1 heat exchanger tube and tube sheet;
Fig. 2 is the structure chart of binding ring.
The specific embodiment
Further introduce the utility model through embodiment below, but embodiment can not constitute the restriction to the utility model.
Like Fig. 1, shown in Figure 2, the Welding Structure of heat exchanger tube and tube sheet, it comprises tube sheet 1; Tube sheet 1 one sides have deep hole, and an other side has the reaming that connects with deep hole, and the reaming inwall has screw thread; Be inserted with heat exchanger tube 2 in the deep hole, the straight tube 5 that has binding ring 4 is installed in the reaming, straight tube 5 one ends insert in the heat exchanger tube; For the ease of tightening installation; Straight tube 5 other end 5-1 are provided with O-ring seals 3 for flattening a little between binding ring 4, the heat exchanger tube 2, and binding ring 4 has the outer silk 4-1 with reaming internal thread phase configuration.
Concrete, the utility model is processing one deep hole on tube sheet 1 at first, but this not break-through of deep hole tube sheet 1; In the terminal processing of deep hole one enlarging, be processed with sealing thread in the enlarging again, heat exchanger tube 2 carries out the intensity weldering through deep hole and tube sheet 1 or intensity expands; Heat exchanger tube 2 welds with tube sheet 1 in enlarging place of tube sheet 1; Welding detect qualified after, put into O-ring seals 3 at heat exchanger tube 2 with tube sheet 1 welding point place again, packing in tube sheet 1 enlarging place then has outer binding ring 4.Binding ring 4 is when screwing in tube sheet 1 enlarging; Compress O-ring seals 3 through pretightning force; The welding point of exchange heat pipe 2 and tube sheet 1 is protected, and O-ring seals 3 all has sealing function with binding ring simultaneously, avoids the heat exchanger tube 2 and the welding point place of tube sheet 1 to produce leakage.
The deep hole of processing can satisfy intensity weldering or the bloated requirement of intensity on the tube sheet 1, but this not break-through of deep hole tube sheet 1, this deep hole end-to-end distance tube sheet 1 tube side side end face 10 ~ 20mm.So that in the terminal processing of deep hole enlarging, processing sealing thread in the enlarging.
Claims (1)
1. the Welding Structure of heat exchanger tube and tube sheet, it is characterized in that: it comprises tube sheet, said tube sheet one side has deep hole; An other side has the reaming that connects with deep hole, and the reaming inwall has screw thread, is inserted with heat exchanger tube in the deep hole; The straight tube that has binding ring is installed in the reaming; Straight tube one end inserts in the heat exchanger tube, is provided with O-ring seals between binding ring, the heat exchanger tube, and binding ring has the outer silk with reaming internal thread phase configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200072 CN202630779U (en) | 2012-05-07 | 2012-05-07 | Welding structure of heat exchange tube and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200072 CN202630779U (en) | 2012-05-07 | 2012-05-07 | Welding structure of heat exchange tube and tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630779U true CN202630779U (en) | 2012-12-26 |
Family
ID=47383972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220200072 Expired - Lifetime CN202630779U (en) | 2012-05-07 | 2012-05-07 | Welding structure of heat exchange tube and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350311A (en) * | 2013-07-29 | 2013-10-16 | 张家港化工机械股份有限公司 | Positioning device between heat exchange tube and tube hole |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN108711802A (en) * | 2018-04-09 | 2018-10-26 | 深圳市沃尔核材股份有限公司 | A method of two vertical connecting tubes of connection |
-
2012
- 2012-05-07 CN CN 201220200072 patent/CN202630779U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350311A (en) * | 2013-07-29 | 2013-10-16 | 张家港化工机械股份有限公司 | Positioning device between heat exchange tube and tube hole |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN105202963B (en) * | 2015-09-29 | 2017-12-08 | 茂名重力石化装备股份公司 | A kind of non-solder forced sealing structure of exchanger tubes and tubesheets |
| CN108711802A (en) * | 2018-04-09 | 2018-10-26 | 深圳市沃尔核材股份有限公司 | A method of two vertical connecting tubes of connection |
| CN108711802B (en) * | 2018-04-09 | 2024-01-09 | 深圳市沃尔核材股份有限公司 | Method for connecting two vertical connecting pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |