CN210070680U - Central tube structure of spiral plate heat exchanger - Google Patents
Central tube structure of spiral plate heat exchanger Download PDFInfo
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- CN210070680U CN210070680U CN201920743254.0U CN201920743254U CN210070680U CN 210070680 U CN210070680 U CN 210070680U CN 201920743254 U CN201920743254 U CN 201920743254U CN 210070680 U CN210070680 U CN 210070680U
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Abstract
The utility model discloses a central tube structure of a spiral plate heat exchanger, which mainly comprises two half-round tubes and a special-shaped clapboard; the two semicircular pipes are respectively welded with the special-shaped partition plate in a butt joint mode to form a cylindrical barrel, the inside of the cylindrical barrel is separated into two independent spaces through the special-shaped partition plate, and a long circular hole is formed in the pipe wall of each semicircular pipe; the long axis direction of the long round hole is parallel to the axial direction of the semicircular pipe or forms a certain inclination angle with the axial direction of the semicircular pipe. The utility model adopts the butt welding mode, so that the continuity of the central tube structure is good, the stress concentration degree is small, and the strength and the rigidity of the central tube are obviously improved; the welding joint is convenient to detect, and the welding quality can be ensured.
Description
Technical Field
The utility model belongs to spiral plate heat exchanger field, specifically speaking relates to a spiral plate heat exchanger central tube structure.
Background
Compared with a commonly used shell-and-tube heat exchanger, the spiral plate type heat exchanger has the advantages of good heat transfer performance, difficulty in blockage and scaling, compact structure and the like, and the good self-cleaning capability of the spiral plate type heat exchanger can greatly prolong the continuous operation period of equipment, especially under the working conditions of high viscosity and easiness in coking.
The common central tube structure of the spiral plate heat exchanger has low bearing strength and rigidity, and the welding seam between the central tube partition plate and the semicircular tube is an angle welding seam, so that nondestructive detection is difficult.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems of low strength, low rigidity, difficult nondestructive testing and the like of the prior central tube technology, the utility model provides a central tube structure of a spiral plate heat exchanger.
The central tube structure of the spiral plate heat exchanger provided by the utility model mainly comprises two half-round tubes and a special-shaped clapboard; the two semicircular pipes are respectively welded with the special-shaped partition plate in a butt joint mode to form a cylindrical barrel, the inside of the cylindrical barrel is separated into two independent spaces through the special-shaped partition plate, and a long circular hole is formed in the pipe wall of each semicircular pipe; the long axis direction of the long round hole is parallel to the axial direction of the semicircular pipe or forms a certain inclination angle with the axial direction of the semicircular pipe.
The special-shaped partition plate comprises a main body plate and flanges arranged on the main body plate, the flanges are arranged on two opposite sides of the main body plate which is axially parallel to the semicircular pipe, three flanges are arranged on each side, each three flange comprises two main flanges and one auxiliary flange, the auxiliary flange and one of the main flanges are positioned on the same side of the main body plate, the other main flange is positioned on the other side of the main body plate, the three flanges are in an arc shape which is bent towards the center of the semicircular pipe, and the three flanges on each side are in central symmetry with the three flanges on the opposite side; the main body plate can be a flat plate or an arc panel, and the radian of the arc panel can be adjusted according to the characteristics of media on two sides.
Each half-round pipe is respectively connected with two main flanges positioned on the same side of the main body plate in a butt welding mode.
The two auxiliary flanges are respectively connected with the corresponding spiral plates in a butt welding mode.
The utility model discloses following beneficial effect has:
1) the mode of butt welding is adopted, so that the structural continuity of the central tube is good, the stress concentration degree is small, and the strength and the rigidity of the central tube are obviously improved; the welding joint is convenient to detect, and the welding quality can be ensured;
2) the semicircular pipe of the central pipe is provided with the oblong hole, so that the internal fluid can be uniformly distributed.
Drawings
FIG. 1 is a schematic structural view of a center tube of the present invention;
FIG. 2 is another schematic structural view of the center tube of the present invention;
FIG. 3 is a schematic structural view of the long axis of the oblong hole being parallel to the axial direction of the semicircular pipe;
FIG. 4 is a schematic structural view of the long axis of the oblong hole and the semicircular tube when the long axis is inclined to the axial direction.
In the figure: 1-semicircular pipe, 2-special-shaped partition plate, 3-spiral plate, 4-long circular hole, 5-main body plate, 6-main flange and 7-auxiliary flange.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 4, the central tube structure of the spiral plate heat exchanger provided by the present invention mainly comprises two half-round tubes 1 and a special-shaped partition plate 2; the two semicircular pipes 1 are respectively butt-welded with the special-shaped partition plate 2 to form a cylindrical barrel, the inside of the cylindrical barrel is separated into two independent spaces by the special-shaped partition plate 2, and the pipe wall of each semicircular pipe 1 is provided with a long round hole 4; the long axis direction of the long round hole 4 is parallel to the axial direction of the semicircular pipe 1 or forms a certain inclination angle with the axial direction of the semicircular pipe 1.
The special-shaped partition plate 2 is composed of a main body plate 5 and flanges arranged on the main body plate, the flanges are arranged on two opposite sides of the main body plate 5 which is parallel to the axial direction of the semicircular tube 1, three flanges are respectively arranged on each side, each three flange comprises two main flanges 6 and one auxiliary flange 7, each auxiliary flange 7 and one main flange 6 are located on the same side of the main body plate 5, the other main flange 6 is located on the other side of the main body plate 5, the three flanges are in an arc shape which is bent towards the center of the semicircular tube 1, and the three flanges on each side are in central symmetry with the three flanges on the opposite side.
The main body plate 5 of the special-shaped partition plate 2 in fig. 1 is a flat plate, the main body plate 5 of the special-shaped partition plate 2 in fig. 2 is an arc panel, and the radian of the arc panel can be adjusted according to the medium characteristics of two sides, so that the medium flow rate, distribution and the like are more uniform. The special-shaped partition plate 2 is an integral forged piece, and the main flange 6 of the special-shaped partition plate 2 and the welding joint welding line of the two semicircular pipes 1 are butt welding lines. The welding seam of the auxiliary flange 7 of the special-shaped partition plate 2 and the welding joint of the spiral plate 3 is also a butt welding seam.
The long axis direction of the oblong hole 4 in fig. 3 is parallel to the axial direction of the semicircular tube, and the long axis direction of the oblong hole 4 in fig. 4 forms a certain inclination angle with the axial direction of the semicircular tube. When fluid enters and exits the central tube, the fluid forms a zonal distribution effect along the axial direction, and the internal fluid is ensured to be uniformly distributed.
Claims (6)
1. The utility model provides a spiral plate heat exchanger central tube structure which characterized in that: mainly comprises two semicircular pipes and a special-shaped clapboard; the two semicircular pipes are respectively welded with the special-shaped partition plate in a butt joint mode to form a cylindrical barrel, the inside of the cylindrical barrel is separated into two independent spaces through the special-shaped partition plate, and a long circular hole is formed in the pipe wall of each semicircular pipe; the long axis direction of the long round hole is parallel to the axial direction of the semicircular pipe or forms a certain inclination angle with the axial direction of the semicircular pipe.
2. The base pipe structure of claim 1, wherein: the special-shaped partition plate is composed of a main body plate and flanges arranged on the main body plate, the flanges are arranged on two opposite sides of the main body plate which is parallel to the axial direction of the semicircular pipe, three flanges are arranged on each side, each three flange comprises two main flanges and one auxiliary flange, each auxiliary flange and one of the main flanges are located on the same side of the main body plate, the other main flange is located on the other side of the main body plate, the three flanges are in an arc shape which is bent towards the center of the semicircular pipe, and the three flanges on each side are in central symmetry with the three flanges on the opposite side.
3. The base pipe structure of claim 2, wherein: the main body plate is a flat plate or an arc panel.
4. The base pipe structure of claim 2, wherein: each half-round pipe is respectively connected with two main flanges positioned on the same side of the main body plate in a butt welding mode.
5. The base pipe structure of claim 2, wherein: the two auxiliary flanges are respectively connected with the corresponding spiral plates in a butt welding mode.
6. The base pipe structure of claim 1, wherein: the special-shaped partition plate is an integral forged piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743254.0U CN210070680U (en) | 2019-05-23 | 2019-05-23 | Central tube structure of spiral plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920743254.0U CN210070680U (en) | 2019-05-23 | 2019-05-23 | Central tube structure of spiral plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210070680U true CN210070680U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920743254.0U Active CN210070680U (en) | 2019-05-23 | 2019-05-23 | Central tube structure of spiral plate heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN210070680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199054A (en) * | 2020-09-17 | 2022-03-18 | 中国石油化工股份有限公司 | Spiral plate type heat exchanger |
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2019
- 2019-05-23 CN CN201920743254.0U patent/CN210070680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199054A (en) * | 2020-09-17 | 2022-03-18 | 中国石油化工股份有限公司 | Spiral plate type heat exchanger |
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