CN109357561B - High-parameter spiral plate type heat exchanger - Google Patents
High-parameter spiral plate type heat exchanger Download PDFInfo
- Publication number
- CN109357561B CN109357561B CN201811203808.4A CN201811203808A CN109357561B CN 109357561 B CN109357561 B CN 109357561B CN 201811203808 A CN201811203808 A CN 201811203808A CN 109357561 B CN109357561 B CN 109357561B
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- Prior art keywords
- spiral
- heat exchanger
- plate
- spiral plate
- arc part
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- 210000001503 joint Anatomy 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The spiral plate type heat exchanger comprises a central tube and an outer shell cylinder which is arranged concentrically with the central tube, and a spiral plate which is arranged between the central tube and the outer shell cylinder; the butt joint connecting plate comprises an arc part and a bifurcation part concentric with the arc part, wherein the arc part is connected with the shell, and one end of the arc part and the end of the bifurcation part concentric with the arc part on the same side of the arc part are respectively in butt joint connection with the tail end of the spiral heat exchange plate; the spiral wrap and outer housing cylinder are connected at both ends. According to the invention, the traditional abrupt change structure is changed into the gradual change structure, so that the pressure bearing capacity of the spiral plate heat exchanger can reach 4-6.4 MPa, the temperature resistant range is up to 400 ℃, and the application range of the spiral plate heat exchanger is further widened.
Description
Technical Field
The invention relates to heat exchange equipment, in particular to a spiral plate type heat exchanger with a new structure, which is particularly suitable for the industrial field with high pressure difference, high temperature difference and high reliability requirements.
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, difficult blockage and scaling, compact structure and the like, and the good self-cleaning capacity 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 easy coking. However, the maximum application range of the spiral plate heat exchanger is specified in the spiral plate heat exchanger standard NB/T47048-2015 as that the nominal pressure is not more than 3.0MPa, the nominal diameter is not more than 2800mm, and the product of the nominal diameter (mm) and the design pressure (MPa) is not more than 3600, so that the maximum disadvantage is that the pressure bearing capacity is limited, the pressure application range of the spiral plate heat exchanger is improved, the advantages of the spiral plate heat exchanger are fully exerted, and the spiral plate heat exchanger has practical significance for the development of the spiral plate heat exchanger.
Disclosure of Invention
The invention provides a high-parameter spiral plate type heat exchanger, which enables the bearing capacity of the spiral plate type heat exchanger to reach 4-6.4 MPa, and the temperature resistant range to reach 400 ℃, so that the application range of the spiral plate type heat exchanger is further widened.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The spiral plate type heat exchanger comprises a central tube and an outer shell cylinder which is arranged concentrically with the central tube, and a spiral plate which is arranged between the central tube and the outer shell cylinder; the butt joint connecting plate comprises an arc part and a bifurcation part concentric with the arc part, wherein the arc part is connected with two semicircular thin cylinders, and one end of the arc part and the end of the bifurcation part concentric with the arc part on the same side of the arc part are respectively in butt joint connection with the tail end of the spiral plate; the two ends of the spiral body wrapping plate are connected with the two ends of the outer shell cylinder.
The central tube is of a halving semicircle tube structure, the middle of the central tube is a baffle plate for separating two-path fluid, and the outer edge of the baffle plate is in butt joint connection with the spiral plate.
The semicircular wall of the central tube is provided with inclined oblong holes which are uniformly distributed.
A pressing plate with distribution holes is arranged in the inlet and outlet connecting pipes on the cylinder of the outer shell.
Stress release grooves are formed in the bottoms of the connecting pipes at the hot medium outlet and the cold medium inlet, so that the spiral wrap plate is flexibly connected with the hot medium outlet or the cold medium inlet connecting pipe.
The outer shell cylinder is a cylindrical shell with only one longitudinal weld.
The outer shell cylinder is in butt joint with the equipment flange, and the equipment flange adopts a high-neck butt welding flange.
According to the invention, the angle joint is modified into the butt joint, the structure of the central tube is improved, the structure of the special-shaped connecting piece is improved, the stress release groove is formed at the connecting tube, and the like, so that the local structure of the traditional spiral plate heat exchanger is changed from the traditional abrupt change structure into the gradual change structure, the pressure bearing capacity of the spiral plate heat exchanger can reach 4-6.4 MPa, the temperature resistant range is up to 400 ℃, and the application range of the spiral plate heat exchanger is further widened.
The invention has the advantages of safety, reliability, high bearing capacity, wide application range and controllable quality.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: a hot medium inlet-1, a head cover-2, an equipment flange-3, a gasket-4, an outer shell cylinder-5, a spiral body wrapping plate-6, a spiral plate-7, a distance column-8, a central tube-9 and a cold medium outlet-10;
FIG. 2 is a left cross-sectional schematic view of FIG. 1;
in the figure: the device comprises a butt joint connecting plate-11, a hot medium outlet-12, a cold medium inlet-13 and a pressing plate-14;
FIG. 3 is a schematic view of a butt joint connection structure and a partial connection structure according to the present invention;
FIG. 4 is an expanded schematic view of the center tube of the present invention;
Fig. 5 is a schematic view of a take-over stress relief groove of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1,2 and 3, a high-parameter spiral plate type heat exchanger mainly comprises a heat medium inlet 1, a head cover 2, an equipment flange 3, a gasket 4, an outer shell cylinder 5, a spiral body wrapping plate 6, a spiral plate 7, a distance column 8, a central tube 9, a cold medium outlet 10, a butt joint connecting plate 11, a heat medium outlet 12, a cold medium inlet 13 and a pressing plate 14. The hot medium inlet 1 and the cold medium outlet 10 are respectively arranged on the head cover 2 at the front end and the rear end, and the head cover 2 is in sealing connection with the outer shell cylinder 5 through the equipment flange 3 and the gasket 4; the central tube 9 is mounted in the center of the outer housing cylinder 5, distance posts 8 are provided between the spiral plates 7, and a hot medium outlet 12 and a cold medium inlet 13 are provided on the outer housing cylinder 5.
The central tube 9 outer shell cylinder 5 is concentrically installed, a spiral plate 7 is installed between the two, the spiral plate 7 is peripherally wrapped by a spiral body wrapping plate 6, the spiral body wrapping plate 6 is composed of two semicircular thin cylinders, the two semicircular thin cylinders are connected into an integral cylinder shell through a butt joint connecting plate 11 (figure 3), the butt joint connecting plate 11 comprises an arc part and a bifurcation part concentric with the arc part, the arc part is connected with the two semicircular thin cylinders, at the moment, the radius of the arc part is matched with the radius of the semicircular thin cylinders, and one end of the arc part and the end of the bifurcation part on the same side concentric with the arc part are respectively in butt joint welding with the tail end of the spiral plate 7. So as to improve the reliability of the connection of the screw body and the outer periphery. And both ends of the spiral wrap 6 and both ends of the outer case cylinder 5 are welded such that the spiral wrap 6 is supported by the outer case cylinder 5.
In the prior art, the spiral plate and the shell are directly welded and connected, and the wall thickness of the spiral plate and the shell (the thickness of the shell is about 38mm, and the thickness of the spiral plate is only 4mm-5 mm) is too different, so that when the pressure difference exists, the welding seam is extremely easy to crack, and the heat exchanger is invalid. According to the invention, through the transition of the intermediate spiral body wrapping plate, the spiral body wrapping plate and the spiral plate are thick, and even if pressure difference exists, the welding seam is not easy to crack.
Because the spiral plate deforms greatly in the radial direction and is small in the axial direction, the spiral body wrapping plate and the outer shell cylinder are welded at two ends, so that the influence of deformation is reduced.
The central tube 9 is of a halving semicircle tube structure, the middle is a partition plate for separating two-path fluid, and the outer edge of the partition plate is in butt welding structure with the spiral plate 7. In the standard of the spiral plate heat exchanger, the welding is fillet welding, and the fillet welding has the defects that the welding is easy to crack when pressure difference exists, and nondestructive detection cannot be carried out. The invention adopts the butt welding structure, thereby improving the connection reliability of the spiral body center spiral plate and being easy to detect the weld quality.
Referring to fig. 4, the semicircular wall of the central tube 9 is provided with uniformly distributed inclined oblong holes. When the fluid enters and exits the central tube, the axial strip-shaped distribution effect is formed, and the uniform distribution of the fluid inside is ensured.
A pressing plate 14 with distribution holes is arranged in the inlet and outlet connecting pipes on the outer shell cylinder 5. The pressing plate is in surface contact with the spiral body wrapping plate 6, and effectively supports the spiral body wrapping plate.
Referring to fig. 5, the bottoms of the connection pipes at the hot medium outlet 12 and the cold medium inlet 13 are provided with stress release grooves, so that the spiral wrap 6 and the connection pipe at the hot medium outlet 12 or the cold medium inlet 13 form flexible connection, and the reliability of the welding seam is higher.
The outer shell cylinder 5 is a cylindrical shell with only one longitudinal weld. Can be welded on both sides, can be detected, and is safe and reliable.
The outer shell cylinder 5 is in butt welding with the equipment flange 3, so that the reliability of connection is improved, and the equipment flange 3 adopts a high-neck butt welding flange.
Claims (7)
1. The high-parameter spiral plate type heat exchanger comprises a central tube and an outer shell cylinder which is concentrically arranged with the central tube, and a spiral plate (7) is arranged between the central tube and the outer shell cylinder, and is characterized by comprising a spiral body wrapping plate (6), wherein the spiral body wrapping plate (6) consists of two semicircular thin cylinders, and the two semicircular thin cylinders are connected into an integral cylindrical shell through a butt joint connecting plate (11) to wrap the spiral plate (7); the butt joint connecting plate (11) comprises an arc part and a bifurcation part concentric with the arc part, the arc part is connected with two semicircular thin cylinders, and one end of the arc part and the end of the bifurcation part concentric with the arc part on the same side of the arc part are respectively in butt joint connection with the tail end of the spiral plate (7); both ends of the spiral body wrapping plate (6) are connected with both ends of the outer shell cylinder (5).
2. A high-parameter spiral plate heat exchanger according to claim 1, wherein the central tube (9) is of a halved semicircle tube structure, a partition plate for separating two fluid passes is arranged in the middle, and the outer edge of the partition plate is in butt joint with the spiral plate (7).
3. A high-parameter spiral plate heat exchanger according to claim 2, wherein the semicircular walls of the central tube (9) are provided with uniformly distributed inclined oblong holes.
4. A high-parameter spiral plate heat exchanger according to claim 1, wherein a pressure plate (14) with distribution holes is arranged in the inlet and outlet connection pipe on the outer shell cylinder (5).
5. A high-parameter spiral plate heat exchanger according to claim 1, wherein the bottoms of the connection pipes at the hot medium outlet (12) and the cold medium inlet (13) are provided with stress release grooves, so that the spiral wrap (6) and the connection pipes at the hot medium outlet (12) or the cold medium inlet (13) form flexible connection.
6. A high-parameter spiral plate heat exchanger according to claim 1, wherein the outer shell cylinder (5) is a cylindrical shell with only one longitudinal weld.
7. A high-parameter spiral plate heat exchanger according to claim 1, wherein the outer shell cylinder (5) is butt-connected to a device flange (3), the device flange (3) being a high neck butt-welded flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203808.4A CN109357561B (en) | 2018-10-16 | 2018-10-16 | High-parameter spiral plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203808.4A CN109357561B (en) | 2018-10-16 | 2018-10-16 | High-parameter spiral plate type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109357561A CN109357561A (en) | 2019-02-19 |
| CN109357561B true CN109357561B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203808.4A Active CN109357561B (en) | 2018-10-16 | 2018-10-16 | High-parameter spiral plate type heat exchanger |
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| Country | Link |
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| CN (1) | CN109357561B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344778B (en) * | 2019-08-08 | 2022-11-08 | 中国石油化工股份有限公司 | Spiral plate type heat exchanger |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710368A (en) * | 2004-06-18 | 2005-12-21 | 高尧林 | Multi-spiral-path chasing |
| CN201007625Y (en) * | 2006-10-31 | 2008-01-16 | 杨富云 | Spiral winding plate-type heat exchanger |
| DE102007027316B3 (en) * | 2007-06-14 | 2009-01-29 | Bohmann, Dirk, Dr.-Ing. | Plate heat exchanger, comprises two identical heat exchanger plates, where two spiral and looping channel halves, in medium of heat exchanger, proceeds in heat exchanger plate |
| CN204495136U (en) * | 2015-03-29 | 2015-07-22 | 安徽雪浪华宝化工装备科技有限公司 | Passage aisle spiral heat exchanger |
| CN205784759U (en) * | 2016-05-20 | 2016-12-07 | 徐州紫聚石化设备有限公司 | A kind of high compressive strength spiral-plate heat exchanger |
| CN206095011U (en) * | 2016-10-20 | 2017-04-12 | 苏州市锦翔压力容器制造有限公司 | Spiral -plate heat exchanger |
| CN206891243U (en) * | 2017-06-27 | 2018-01-16 | 常州红太阳药业有限公司 | A kind of spiral heat exchanger |
| CN209416123U (en) * | 2018-10-16 | 2019-09-20 | 甘肃蓝科石化高新装备股份有限公司 | A kind of high parameter spiral heat exchanger |
-
2018
- 2018-10-16 CN CN201811203808.4A patent/CN109357561B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710368A (en) * | 2004-06-18 | 2005-12-21 | 高尧林 | Multi-spiral-path chasing |
| CN201007625Y (en) * | 2006-10-31 | 2008-01-16 | 杨富云 | Spiral winding plate-type heat exchanger |
| DE102007027316B3 (en) * | 2007-06-14 | 2009-01-29 | Bohmann, Dirk, Dr.-Ing. | Plate heat exchanger, comprises two identical heat exchanger plates, where two spiral and looping channel halves, in medium of heat exchanger, proceeds in heat exchanger plate |
| CN204495136U (en) * | 2015-03-29 | 2015-07-22 | 安徽雪浪华宝化工装备科技有限公司 | Passage aisle spiral heat exchanger |
| CN205784759U (en) * | 2016-05-20 | 2016-12-07 | 徐州紫聚石化设备有限公司 | A kind of high compressive strength spiral-plate heat exchanger |
| CN206095011U (en) * | 2016-10-20 | 2017-04-12 | 苏州市锦翔压力容器制造有限公司 | Spiral -plate heat exchanger |
| CN206891243U (en) * | 2017-06-27 | 2018-01-16 | 常州红太阳药业有限公司 | A kind of spiral heat exchanger |
| CN209416123U (en) * | 2018-10-16 | 2019-09-20 | 甘肃蓝科石化高新装备股份有限公司 | A kind of high parameter spiral heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 多通道螺旋板式换热器几何设计;田朝阳;刘丰;刘春燕;;广东化工(第06期);全文 * |
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| CN109357561A (en) | 2019-02-19 |
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