CN110057209B - Tube type light pipe evaporator and welding method thereof - Google Patents
Tube type light pipe evaporator and welding method thereof Download PDFInfo
- Publication number
- CN110057209B CN110057209B CN201910382739.6A CN201910382739A CN110057209B CN 110057209 B CN110057209 B CN 110057209B CN 201910382739 A CN201910382739 A CN 201910382739A CN 110057209 B CN110057209 B CN 110057209B
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchange tube
- tube
- tubes
- row
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 12
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
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 invention discloses a shell-and-tube type light pipe evaporator and a welding method thereof, wherein the shell-and-tube type light pipe evaporator comprises an upper layer heat exchange pipe row and a lower layer heat exchange pipe row, and the upper layer heat exchange pipe row and the lower layer heat exchange pipe row are mutually parallel and staggered; the upper heat exchange tube row comprises a plurality of first heat exchange tubes and second heat exchange tubes which are arranged in parallel, and the axial centers of the first heat exchange tubes and the axial centers of the second heat exchange tubes are all on the same straight line; the lower layer heat exchange tube row comprises a plurality of third heat exchange tubes which are arranged in parallel, and are arranged in staggered mode along the axis direction, one end of each third heat exchange tube is flush with the end part of the first heat exchange tube, and the other end of each third heat exchange tube is flush with the end part of the second heat exchange tube. According to the evaporator and the welding method thereof, the first heat exchange tube is connected with the third heat exchange tube closest to the first heat exchange tube and the end part of which is flush with the first heat exchange tube by using the connecting bent tube, and when the second heat exchange tube is connected with the third heat exchange tube closest to the second heat exchange tube and the end part of which is flush with the second heat exchange tube, enough installation and operation space can be ensured, so that the processing and manufacturing efficiency of the evaporator is improved.
Description
Technical Field
The invention relates to the field of heat exchange devices, in particular to a tube type light pipe evaporator and a welding method thereof.
Background
The shell-and-tube light pipe evaporator is an important heat transfer device and is widely applied to various fields of modern chemical industry, electric power, oil refining, refrigeration and the like. The shell-and-tube type light pipe evaporator is generally composed of a plurality of stainless steel pipes, two ends of each pipe are respectively provided with an interface which is an inlet and an outlet, and other pipes are connected end to end by means of arc-shaped elbows at the two ends through a brazing process, so that the pipes are connected in series to form a unique passage. Because the gaps between the heat exchange tubes in the shell-and-tube light tube evaporator are too small, the arc-shaped elbow is inconvenient to operate during welding, the manufacturing and processing efficiency of the shell-and-tube light tube evaporator is reduced, the connection quality between the arc-shaped elbow and a heat exchange pipeline is also reduced, and the risks of water leakage, cracking and the like of the pipeline are increased.
Disclosure of Invention
In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present invention provides a shell-and-tube light pipe evaporator and a method of welding the same.
The invention adopts the technical proposal for solving the problems that:
the shell and tube type light pipe evaporator comprises a heat exchange tube bundle and a plurality of connecting bent tubes, wherein a cold medium inlet and a hot medium outlet are formed in the heat exchange tube bundle, and the heat exchange tube bundle comprises a shell and tube type light pipe evaporator, wherein:
the heat exchange tube bundle comprises an upper heat exchange tube row and a lower heat exchange tube row, and the upper heat exchange tube row and the lower heat exchange tube row are parallel to each other and are arranged in staggered manner;
the upper heat exchange tube row comprises a plurality of first heat exchange tubes and second heat exchange tubes which are arranged in parallel, the first heat exchange tubes and the second heat exchange tubes are sequentially and alternately arranged, and the axial centers of the first heat exchange tubes and the axial centers of the second heat exchange tubes are all on the same straight line;
the lower heat exchange tube row comprises a plurality of third heat exchange tubes which are arranged in parallel, and the length of the pipeline of the third heat exchange tube is between the first heat exchange tube and the second heat exchange tube; the third heat exchange tubes are arranged in staggered mode along the axis direction, one end of each third heat exchange tube is flush with the end part of the first heat exchange tube, and the other end of each third heat exchange tube is flush with the end part of the second heat exchange tube;
the first heat exchange tubes in the upper heat exchange tube row and the third heat exchange tubes closest to the first heat exchange tubes in the lower heat exchange tube row are connected through connecting elbows, and the end parts of the third heat exchange tubes are flush with the end parts of the first heat exchange tubes; the second heat exchange tubes in the upper heat exchange tube row and the third heat exchange tubes closest to the second heat exchange tubes in the lower heat exchange tube row, and the end parts of the third heat exchange tubes are flush with the end parts of the second heat exchange tubes, are connected through connecting bent tubes, so that a unidirectional serpentine alternate heat exchange path is formed.
Specifically, the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are all made of stainless steel materials and can resist high temperature and high pressure.
According to the shell-and-tube type light pipe evaporator, the upper heat exchange tube row and the lower heat exchange tube row are mutually parallel and staggered, so that high-temperature flue gas formed after flame burning in bottom combustion is facilitated to pass through a circulation gap formed by the staggered arrangement of the upper heat exchange tube row and the lower heat exchange tube row, the flue gas transversely washes the staggered tube bundles, the convection heat release coefficient of the flue gas is effectively improved, the heat exchange strength between the flue gas and the heat exchange tube wall is increased, and the convection heat exchange efficiency is improved. Because the lengths of the first heat exchange tube and the second heat exchange tube are different, when the axial centers of the first heat exchange tube and the second heat exchange tube are in the same straight line, the end parts of the first heat exchange tube and the end parts of the second heat exchange tube form natural staggered arrangement in the axial direction; the length of the third heat exchange tube in the lower heat exchange tube row is between the first heat exchange tube and the second heat exchange tube, and the third heat exchange tubes are arranged in staggered mode along the axis direction of the third heat exchange tube, one end of the third heat exchange tube is flush with the end of the first heat exchange tube, and the other end of the third heat exchange tube is flush with the end of the second heat exchange tube, so that when the first heat exchange tube or the second heat exchange tube is connected with the third heat exchange tube closest to the third heat exchange tube and flush with the end of the third heat exchange tube by using the connecting bent tube, enough installation operation space can be ensured, the processing and manufacturing efficiency of the shell and tube type light tube evaporator is improved, the connection quality between the connecting bent tube and a heat exchange tube is improved, and the risks of water leakage, cracking and the like of the tube are reduced.
Further, the heat exchange tube diameters of the heat exchange tube bundles are the same.
Further, the heat exchanger further comprises heat insulation plates, wherein the heat insulation plates are arranged at two ends of the heat exchange tube bundle at intervals.
Heat loss of the heat exchange tube bundle can be avoided by arranging the heat insulation plate, so that heat exchange efficiency is improved.
Further, the evaporator comprises an evaporator supporting plate, through holes matched with the heat exchange tube bundle in tube diameter are uniformly distributed in the evaporator supporting plate, and the heat exchange tube bundle penetrates through the through holes.
The heat exchange tube bundle is fixed through the evaporator supporting plate, so that uniform intervals between the heat exchange tubes are ensured, the heat exchange tubes are prevented from being deformed to generate stress during heating, and the structure of the whole tubular light tube evaporator is damaged.
Further, the evaporator supporting plate is located between the heat insulation plates, and a plurality of evaporator supporting plates are uniformly arranged along the axis direction of the heat exchange tube bundle.
Further, the evaporator support plate is integrally formed.
Therefore, the plurality of uniformly distributed evaporator supporting plates which are integrally formed are not easy to deform when being heated, so that the heat exchange tube can be better protected.
The invention also provides a welding method of the shell-and-tube light pipe evaporator, which comprises the following steps:
A. the heat exchange tubes of the upper layer heat exchange tube row and the lower layer heat exchange tube row penetrate through the evaporator supporting plate and the heat insulation plate, and the heat exchange tubes of the upper layer heat exchange tube row and the lower layer heat exchange tube row are arranged in a staggered manner at intervals;
B. the first heat exchange tube in the upper heat exchange tube row and the third heat exchange tube closest to the first heat exchange tube in the lower heat exchange tube row, and the end parts of the third heat exchange tubes are flush with the end parts of the first heat exchange tubes, are welded and fixed through connecting bent tubes; the second heat exchange tube in the upper heat exchange tube row and the third heat exchange tube closest to the second heat exchange tube in the lower heat exchange tube row, and the end part of the third heat exchange tube is flush with the end part of the second heat exchange tube, are welded and fixed through a connecting bent tube, so that a unidirectional serpentine circulation heat exchange path which is horizontally and obliquely overlapped is formed.
Further, the welding sequence in the step B is to weld and fix the second heat exchange tube of the upper heat exchange tube row of the evaporator with the third heat exchange tube of the lower heat exchange tube row, and weld the first heat exchange tube of the upper heat exchange tube row of the evaporator with the third heat exchange tube of the lower heat exchange tube row alternately, and weld the left side and the right side alternately.
In summary, the shell-and-tube light pipe evaporator and the welding method thereof provided by the invention have the following technical effects:
1) The upper heat exchange tube rows and the lower heat exchange tube rows are parallel to each other and are arranged in staggered mode, high-temperature flue gas formed after flame burning which is favorable for bottom burning passes through a circulation gap formed by the staggered arrangement of the upper heat exchange tube rows and the lower heat exchange tube rows, the flue gas transversely washes the staggered tube bundles, the convection heat release coefficient of the flue gas is effectively improved, the heat exchange strength between the flue gas and the heat exchange tube walls is increased, and therefore the convection heat exchange efficiency of the evaporator is improved.
2) The third heat exchange tubes in the lower layer heat exchange tube row are arranged in a staggered manner along the axis direction of the pipeline, one end of each third heat exchange tube is flush with the end part of the first heat exchange tube, and the other end of each third heat exchange tube is flush with the end part of the second heat exchange tube, so that the first heat exchange tube is connected with the third heat exchange tube closest to the first heat exchange tube and flush with the end part of the first heat exchange tube by using the connecting bent tube, and when the second heat exchange tube is connected with the third heat exchange tube closest to the second heat exchange tube and flush with the end part of the second heat exchange tube, enough installation operation space can be ensured, the processing and manufacturing efficiency of the tube type light tube evaporator is further improved, the connection quality between the connecting bent tube and the heat exchange pipeline is also improved, and the risks of water leakage, cracking and the like of the pipeline are reduced.
Drawings
FIG. 1 is a schematic view of a tube array light pipe evaporator of the present invention;
FIG. 2 is a right side view of the tube-in-tube light pipe evaporator of FIG. 1 with the connecting bend removed;
FIG. 3 is a schematic view of a portion of a shell-and-tube light pipe evaporator according to the present invention.
Wherein the reference numerals have the following meanings:
the heat exchange tube bundle 1, an inlet tube 2, an outlet tube 3, a heat insulation plate 4, an evaporator supporting plate 5, an upper heat exchange tube row 11, a first heat exchange tube 111, a second heat exchange tube 112, a lower heat exchange tube row 12, a third heat exchange tube 121 and a connecting bent tube 13.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to FIGS. 1-3, the present invention discloses a shell-and-tube light pipe evaporator that can be used in heat exchange devices, such as: gas steam engine, steam generator, water heater, etc. Wherein the shell and tube light pipe evaporator may be secured in the combustion chamber.
The shell and tube type light pipe evaporator comprises a heat exchange tube bundle 1, an inlet tube 2 arranged at the left end of the heat exchange tube bundle 1 and an outlet tube 3 arranged at the right end of the heat exchange tube bundle 1, wherein the inlet tube 2 and the outlet tube 3 are respectively connected with the heat exchange tube bundle 1. Obviously, in other embodiments, the positions of the inlet tube 2 and the outlet tube 3 may be interchanged, or may be located on the same side of the heat exchange tube bundle 1, without limitation. The heat exchange tube bundle 1 comprises an upper heat exchange tube row 11, a lower heat exchange tube row 12 and a plurality of connecting bent tubes 13, wherein the upper heat exchange tube row 11 and the lower heat exchange tube row 12 are parallel to each other and are arranged in staggered mode. Through setting up the heat exchange tube row of staggered arrangement for leave the clearance between heat exchange tube row and the row, more be favorable to the transfer of heat, make the heat exchange tube row and the heating between the row more even.
Referring to fig. 1-3, the upper heat exchange tube row 11 includes a plurality of first heat exchange tubes 111 and second heat exchange tubes 112 arranged in parallel, where the first heat exchange tubes 111 and the second heat exchange tubes 112 are alternately arranged in turn, and the axial centers of the first heat exchange tubes 111 and the axial centers of the second heat exchange tubes 112 are on the same straight line, and in this embodiment, the length of the second heat exchange tubes 112 is greater than that of the first heat exchange tubes 111. Therefore, when the axial centers of the first heat exchange tube 111 and the second heat exchange tube 112 are all in the same straight line, the end portions of the first heat exchange tube 111 and the end portions of the second heat exchange tube 112 naturally form staggered arrangement in the axial direction. The lower heat exchange tube row 12 includes a plurality of third heat exchange tubes 121 arranged parallel to each other, in this embodiment, the third heat exchange tubes 121 have lengths between the first heat exchange tubes 111 and the second heat exchange tubes 112 and are arranged in staggered arrangement along the axial direction, one end of each third heat exchange tube is flush with the end of the first heat exchange tube 111, and the other end of each third heat exchange tube is flush with the end of the second heat exchange tube 112. The first heat exchange tube 111 in the upper heat exchange tube row 11 is connected with the third heat exchange tube 121 closest to the first heat exchange tube 111 in the lower heat exchange tube row 12 and with the end part flush with the end part of the first heat exchange tube 111 through a connecting bent tube 13, and the second heat exchange tube 112 in the upper heat exchange tube row 11 is connected with the third heat exchange tube 121 closest to the second heat exchange tube 112 in the lower heat exchange tube row 12 and with the end part flush with the end part of the second heat exchange tube 112 through a connecting bent tube 13, so that a unidirectional snake-shaped alternate heat exchange path which is horizontally and obliquely overlapped is formed. In the present embodiment, the connecting bent pipe 13 is connected to the first heat exchange tube 111, the second heat exchange tube 112 and the third heat exchange tube 121 by welding.
Because the third heat exchange tubes 121 in the lower heat exchange tube row 12 are arranged in staggered manner along the axial direction of the tube, and meanwhile, one end of each third heat exchange tube is flush with the end of the first heat exchange tube 111, and the other end of each third heat exchange tube is flush with the end of the second heat exchange tube 112, when the first heat exchange tube 111 or the second heat exchange tube 112 is connected with the third heat exchange tube 121 closest to the third heat exchange tube and flush with the end of the third heat exchange tube by using the connecting bent tube 13, enough welding operation space can be ensured, the manufacturing and processing efficiency of the tube type light tube evaporator is further improved, the connection quality between the connecting bent tube 13 and the heat exchange tube is also improved, and the occurrence of safety problems such as water leakage and cracking of the tube is avoided.
Referring to fig. 1 again, the shell and tube light pipe evaporator is further provided with two heat insulation boards 4, the partition boards 4 are arranged at two ends of the heat exchange tube bundle 1, and heat loss of the heat exchange tube bundle 1 can be avoided by arranging the heat insulation boards 4, so that heat exchange efficiency is improved. In addition, the evaporator is also provided with an integrally formed evaporator supporting plate 5, and the evaporator supporting plate 5 is arranged between the two heat insulation plates 4 and is uniformly distributed along the axial direction of the pipeline of the heat exchange tube bundle 1. In the present embodiment, the number of the evaporator supporting plates 5 is 3. In addition, through holes matched with the pipe diameters of the heat exchange pipe bundles 1 are uniformly distributed in the evaporator supporting plate 5, and two ends of the heat exchange pipe bundles 1 respectively penetrate through the through holes. Therefore, by arranging the evaporator supporting plate 5, the uniform interval between the heat exchange tubes can be ensured, and the heat exchange tubes are prevented from being deformed to generate stress during heating, so that the whole evaporator structure is damaged.
In addition, the invention also provides a welding method of the shell-and-tube light pipe evaporator, which comprises the following steps:
A. the heat exchange tubes of the upper layer heat exchange tube row and the lower layer heat exchange tube row penetrate through the evaporator supporting plate and the heat insulation plate, and the heat exchange tubes of the upper layer heat exchange tube row and the lower layer heat exchange tube row are arranged in a staggered manner at intervals;
B. the first heat exchange tube in the upper heat exchange tube row and the third heat exchange tube closest to the first heat exchange tube in the lower heat exchange tube row, and the end parts of the third heat exchange tubes are flush with the end parts of the first heat exchange tubes, are welded and fixed through connecting bent tubes; the second heat exchange tube in the upper heat exchange tube row and the third heat exchange tube closest to the second heat exchange tube in the lower heat exchange tube row, and the end part of the third heat exchange tube is flush with the end part of the second heat exchange tube, are welded and fixed through a connecting bent tube, so that a unidirectional serpentine circulation heat exchange path which is horizontally and obliquely overlapped is formed.
In addition, the welding sequence in the step B is to weld and fix the second heat exchange tube of the upper heat exchange tube row of the evaporator and the third heat exchange tube of the lower heat exchange tube row of the evaporator alternately at the left side and the right side, and then weld and fix the first heat exchange tube of the upper heat exchange tube row of the evaporator and the third heat exchange tube of the lower heat exchange tube row of the evaporator alternately at the left side and the right side.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The shell and tube type light pipe evaporator is characterized by comprising a heat exchange tube bundle (1) and a plurality of connecting bent tubes (13), wherein a cold medium inlet and a hot medium outlet are formed in the heat exchange tube bundle (1), and the shell and tube type light pipe evaporator comprises:
the heat exchange tube bundle (1) comprises an upper heat exchange tube row (11) and a lower heat exchange tube row (12), wherein the upper heat exchange tube row (11) and the lower heat exchange tube row (12) are parallel to each other and are arranged in staggered mode;
the upper heat exchange tube row (11) comprises a plurality of first heat exchange tubes (111) and second heat exchange tubes (112) which are arranged in parallel, wherein the first heat exchange tubes (111) and the second heat exchange tubes (112) are sequentially and alternately arranged, and the axial centers of the first heat exchange tubes (111) and the axial centers of the second heat exchange tubes (112) are all on the same straight line;
the lower heat exchange tube row (12) comprises a plurality of third heat exchange tubes (121) which are arranged in parallel, and the length of a pipeline of the third heat exchange tubes (121) is between the first heat exchange tubes (111) and the second heat exchange tubes (112); the third heat exchange tubes (121) are arranged in staggered manner along the axis direction, one end of each third heat exchange tube is flush with the end part of the first heat exchange tube (111), and the other end of each third heat exchange tube is flush with the end part of the second heat exchange tube (112);
a first heat exchange tube (111) in the upper heat exchange tube row (11) is closest to the first heat exchange tube (111) in the lower heat exchange tube row (12), and a third heat exchange tube (121) with the end part flush with the end part of the first heat exchange tube (111) is connected through a connecting bent tube (13); the second heat exchange tubes (112) in the upper heat exchange tube row (11) are closest to the second heat exchange tubes (112) in the lower heat exchange tube row (12), and the third heat exchange tubes (121) with the end parts flush with the end parts of the second heat exchange tubes (112) are connected through connecting bent tubes (13) to form a unidirectional serpentine alternate heat exchange path.
2. A shell-and-tube light pipe evaporator according to claim 1, characterized in that the heat exchange tube diameters of the heat exchange tube bundles (1) are all identical.
3. A shell and tube light pipe evaporator according to claim 2, further comprising heat shields (4), the heat shields (4) being arranged at intervals at both ends of the heat exchanger tube bundle (1).
4. A shell-and-tube light pipe evaporator as set forth in claim 3 wherein: still include evaporimeter backup pad (5), the equipartition on evaporimeter backup pad (5) with heat transfer tube bank (1) pipe diameter assorted through-hole, heat transfer tube bank (1) run through the through-hole.
5. A shell and tube light pipe evaporator as set forth in claim 4 wherein: the evaporator supporting plates (5) are located between the heat insulation plates (4), and a plurality of evaporator supporting plates are uniformly arranged along the axial direction of the heat exchange tube bundle (1).
6. A shell and tube light pipe evaporator as set forth in claim 5 wherein: the evaporator supporting plate (5) is integrally formed.
7. A method of welding a shell-and-tube light pipe evaporator according to claim 6, comprising the steps of:
A. the heat exchange tubes of the upper layer heat exchange tube row (11) and the lower layer heat exchange tube row (12) penetrate through the evaporator supporting plate (5) and the heat insulation plate (4), and the heat exchange tubes of the upper layer heat exchange tube row (11) and the lower layer heat exchange tube row (12) are arranged in a staggered manner at intervals;
B. a first heat exchange tube (111) in the upper heat exchange tube row (11) and a third heat exchange tube (121) closest to the first heat exchange tube (111) in the lower heat exchange tube row (12), and the end parts of the third heat exchange tubes are flush with the end parts of the first heat exchange tubes (111) are welded and fixed through connecting bent tubes (13); the second heat exchange tube (112) in the upper heat exchange tube row (11) and the third heat exchange tube (121) closest to the second heat exchange tube (112) in the lower heat exchange tube row (12) are welded and fixed through a connecting bent tube (13), and the end parts of the third heat exchange tubes are flush with the end parts of the second heat exchange tubes (112) so as to form a horizontal and obliquely superposed unidirectional serpentine circulation heat exchange path.
8. The welding method according to claim 7, wherein the welding sequence in the step B is to weld and fix the second heat exchange tube (112) of the upper heat exchange tube row (11) of the evaporator and the third heat exchange tube (121) of the lower heat exchange tube row (12) alternately on the left and right sides, and then weld and fix the first heat exchange tube (111) of the upper heat exchange tube row (11) of the evaporator and the third heat exchange tube (121) of the lower heat exchange tube row (12) alternately on the left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382739.6A CN110057209B (en) | 2019-05-09 | 2019-05-09 | Tube type light pipe evaporator and welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382739.6A CN110057209B (en) | 2019-05-09 | 2019-05-09 | Tube type light pipe evaporator and welding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110057209A CN110057209A (en) | 2019-07-26 |
| CN110057209B true CN110057209B (en) | 2024-03-12 |
Family
ID=67322564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910382739.6A Active CN110057209B (en) | 2019-05-09 | 2019-05-09 | Tube type light pipe evaporator and welding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110057209B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110537731A (en) * | 2019-08-06 | 2019-12-06 | 广东大源小能节能科技有限公司 | Humidity control system for redrying tobacco leaves |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591602A (en) * | 1945-03-29 | 1947-08-22 | Babcock & Wilcox Ltd | Improvements in or relating to heat exchangers |
| US4625378A (en) * | 1983-05-09 | 1986-12-02 | Matsushita Refrigeration Company | Method of manufacturing fin-tube heat exchangers |
| CN101776414A (en) * | 2010-02-01 | 2010-07-14 | 上海醇华电子有限公司 | Turning connection method for sleeve pipe ports of sleeve pipe type heat exchanger |
| CN204359159U (en) * | 2014-12-03 | 2015-05-27 | 北京交通大学 | A kind of horizontal condensing heat exchanger |
| CN210036337U (en) * | 2019-05-09 | 2020-02-07 | 广东念智节能科技有限公司 | Tube array type optical tube evaporator |
-
2019
- 2019-05-09 CN CN201910382739.6A patent/CN110057209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591602A (en) * | 1945-03-29 | 1947-08-22 | Babcock & Wilcox Ltd | Improvements in or relating to heat exchangers |
| US4625378A (en) * | 1983-05-09 | 1986-12-02 | Matsushita Refrigeration Company | Method of manufacturing fin-tube heat exchangers |
| CN101776414A (en) * | 2010-02-01 | 2010-07-14 | 上海醇华电子有限公司 | Turning connection method for sleeve pipe ports of sleeve pipe type heat exchanger |
| CN204359159U (en) * | 2014-12-03 | 2015-05-27 | 北京交通大学 | A kind of horizontal condensing heat exchanger |
| CN210036337U (en) * | 2019-05-09 | 2020-02-07 | 广东念智节能科技有限公司 | Tube array type optical tube evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110057209A (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210036337U (en) | Tube array type optical tube evaporator | |
| KR101688934B1 (en) | Combined gas-water tube hybrid heat exchanger | |
| CN108474588A (en) | It is provided with the condensate and heat exchanger of heat-exchange device | |
| CN110057209B (en) | Tube type light pipe evaporator and welding method thereof | |
| CN101676065A (en) | Method for producing and assembling superheater coil tubes of steam generators | |
| JPS60248995A (en) | Multitubular type heat exchanger | |
| CN210533121U (en) | Condensing heat exchanger | |
| EP0113344B1 (en) | Heat exchangers and methods of construction thereof | |
| JPH0418205B2 (en) | ||
| JP2021134971A (en) | Heat exchanger and water heater having the same | |
| RU2386905C1 (en) | Heat generator | |
| KR100896407B1 (en) | Heat exchanger and manufacturing method of heat exchanging pipe composing thereof | |
| CN214384384U (en) | Heat exchanger of steam generating equipment | |
| CN215523240U (en) | Heating surface positioning device | |
| KR101896028B1 (en) | Ethylene cracking furnace | |
| CN112797392A (en) | Improved steam generating equipment | |
| CN114370772A (en) | Oxidation furnace heat exchange assembly | |
| CN217816856U (en) | Combustion-supporting air heater for industrial furnace | |
| CN214891854U (en) | Crude oil water jacket heating furnace | |
| JP2006002622A (en) | Regenerator for gas turbine | |
| RU2744741C1 (en) | Tubular heat exchanger with modular header for high pressure (embodiments) | |
| RU2790537C1 (en) | Heat exchanger | |
| CN212719811U (en) | Boiler heat exchange equipment and urea pyrolysis system | |
| CN212566309U (en) | Heat exchange structure and water heater | |
| RU2680291C1 (en) | Shell and tube heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |