CN114074154B - Manufacturing equipment for winding and forming reinforced heat transfer inner inserting core in pipe - Google Patents
Manufacturing equipment for winding and forming reinforced heat transfer inner inserting core in pipe Download PDFInfo
- Publication number
- CN114074154B CN114074154B CN202010799057.8A CN202010799057A CN114074154B CN 114074154 B CN114074154 B CN 114074154B CN 202010799057 A CN202010799057 A CN 202010799057A CN 114074154 B CN114074154 B CN 114074154B
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- Prior art keywords
- winding
- core
- interpolation
- length
- wire
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- 238000004804 winding Methods 0.000 title claims abstract description 127
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 16
- 235000000396 iron Nutrition 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 41
- 239000010959 steel Substances 0.000 description 41
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture Of Motors, Generators (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a manufacturing device for winding an inner core for enhancing heat transfer in a pipe, which comprises a support frame, a motor, a magnetic force half-coupling, an inner core winding unit, a length limiting device for winding the inner core, a positioning device for winding the length of a wire, an inner core placing frame, an electric control cabinet and a circumferential positioning assembly of the winding unit. The positioning device of the winding wire length and the interpolation core length limiting device jointly control the tightness degree of the winding wire, the interpolation core length limiting device can wind interpolation cores with different specifications, and the interpolation core placement frame is convenient for installation of the winding wire and disassembly of the interpolation core. The invention realizes semiautomatic winding of the interpolation core, has reasonable design, simple and convenient operation, reduces the labor force, has low manufacturing cost, can adjust the length of the winding wire, is suitable for winding of interpolation cores with different specifications, can accelerate the winding speed of the interpolation core, ensures that the interpolation core is wound more uniformly, and improves the winding quality.
Description
Technical Field
The invention relates to a manufacturing device for winding and forming a heat transfer interpolation core in a reinforced pipe. The invention can realize the rapid and high-quality processing of the heat transfer interpolation core in the reinforced pipe formed by winding. The present invention belongs to the field of mechanical manufacture.
Background
When the heat transfer insert core in the reinforced pipe is inserted into the pipe, 3-direction eddies can be formed in the space in the pipe, so that the mixing degree of cold and hot fluid in the pipe is accelerated, the temperature gradient near the pipe wall is increased, the heat exchange coefficient in the pipe is increased, and the convection heat transfer is reinforced. The heat transfer inner insert core in the reinforced pipe formed by winding can be manufactured manually, but the manual processing efficiency is low, the processing cost and the cost are high, the winding tightness of the inner insert core is not uniform enough, the processing precision is affected, and the heat exchange performance is further affected. Therefore, the invention provides a manufacturing device for winding and forming the heat transfer interpolation core in the reinforced pipe to realize rapid and high-quality processing for winding and forming the interpolation core.
Disclosure of Invention
The invention aims to improve the processing efficiency of the heat transfer interpolation core in the reinforced pipe formed by winding, overcome the defect of manual processing, and provide the manufacturing equipment of the interpolation core formed by winding, so that the tightness of the interpolation core formed by winding is more uniform, the geometric structure is more regular, and the processing cost is reduced.
The object of the invention can be achieved by the following technical scheme.
The invention provides a manufacturing device 1 for an inner core for heat transfer in a winding forming reinforced pipe, which comprises a supporting frame 2, a motor 3, a magnetic force half-coupling 4, an inner core winding unit 5, a length limiting device 6 for the inner core formed by winding, a positioning device 7 for the length of a winding wire, an inner core placing frame 8 formed by winding, an electric control cabinet 9 and a circumferential positioning component 10 for the inner core winding unit.
In the structure, a motor 3 is fixed on a support frame 2, the motor 3 is connected with a magnetic force half coupler 4 on an inner inserting core winding unit 5 through magnetic force attraction, the inner inserting core winding unit 5 is arranged on the support frame 2, a positioning device 7 for winding wire length is arranged on the inner inserting core winding unit 5, the positioning device 7 for winding wire length can control the length of a winding wire 17, an inner inserting core winding unit circumferential positioning assembly 10 is arranged on the support frame 2, the rotating angle of the inner inserting core winding unit 5 is controlled, an inner inserting core length limiting device 6 is connected on the support frame 2 through bolts 16, the positions of the inner inserting core limiting device can be adjusted randomly, so that inner inserting cores 18 with different specifications can be wound out, an inner inserting core placing frame 8 is placed on one side of the support frame 2 in a manual operation mode, the installation of the winding wire 17 and the disassembly of the inner inserting core 18 are facilitated, and an electric control cabinet 9 is arranged on the support frame 2.
In the structure, the support frame 2 is formed by welding a plurality of angle irons 19, and is mainly used for supporting the inner core winding unit 5, the motor 3, the length limiting device 6 for forming the inner core by winding, the electric control cabinet 9, the inner core winding unit circumferential positioning assembly 10 and the like.
In the structure, the inserted core winding unit 5 is arranged on the support frame 2 and connected with the support frame 2 through the bearing sleeve 20, and comprises a positioning device 7 with winding wire length, a left rotating wheel 21, a right rotating wheel 22, a central shaft tube 23, eight guide pipes 24 and a sliding rail 25.
In the structure, the positioning device 7 of the length of the winding wire is connected by the middle fixing frame 11, the tensioning pulley 12, the movable hook 13, the tensioning spring 14 and the tensioning rope 15, and the positioning device 7 of the length of the winding wire can control the length of the winding wire 17.
In the structure, the left rotating wheel 21 is provided with eight winding side magnetic force half couplings 4. The winding side magnetic force half coupling 4 is fixed on the left rotating wheel 21 through bolts 16, and the starting motor 3 and the motor side magnetic force half coupling 4 are simultaneously rotated after being attracted to realize winding processing of the inner core.
In the structure, the circumferential positioning assembly 10 of the inner core winding unit consists of a positioning hole 26, a positioning pin 27, a foot rest lever 28, a fixed pulley 29 and a control wire 30, wherein the positioning hole 26 is arranged on the left rotating wheel 21, the foot rest lever 28 is arranged at the lower position of the supporting frame 2, the foot rest lever 28 is connected with the control wire 30, the rotation angle of the inner core winding unit 5 can be controlled, and the positioning of the inner core winding unit 5 is realized.
In the structure, the eight tensioning pulleys 12 are circumferentially and uniformly arranged on the right rotating wheel 22, and the movable hook 13, the tensioning spring 14 and the tensioning rope 15 are connected through the eight tensioning pulleys 12.
In the structure, an intermediate fixing frame 11 is arranged on a central shaft tube 23, the intermediate fixing frame 11 is connected with eight tensioning springs 14, the tensioning springs 14 are connected with tensioning ropes 15 in a knotted mode, and the tensioning ropes 15 are connected with movable hooks 13 through tensioning pulleys 12.
In the structure, the tensioning rope 15 is arranged in the guide pipe 24, the movable hook 13 is arranged on the sliding rail 25 of the guide pipe 24, the length of the winding wire 17 is controlled, and the tightness degree of winding of the inner core 18 is controlled together with the inner core length limiting device 6.
In the structure, eight fixed hooks 31 are arranged on the eight magnetic coupling parts 4.
In the above structure, the fixing hook 31 has two fixing hooks 32 for fixing the inner core 18.
In the structure, the movable hook 13 is provided with two movable hooks 33 for fixing the inner core 18.
The insert 18 is wound from one of the two strands 34, two of the two strands 35, and a wire loop or spiral 36.
The insert core 18 is inserted into the heat exchange tube 37, so that the heat exchange performance in the tube can be improved.
The working principle of the invention is as follows: the double-strand winding steel wires with the specified number of steel wire rings or steel spiral wire rings 36 are knotted, then two ends of the double-strand winding steel wires 17 are respectively hung at two ends of the movable hook 13 and the fixed hook 31, the fixed hook 31 is connected with the coupler 4, the movable hook 13 is hung on the sliding rail 25 of the guide pipe 24, after the two ends of the double-strand winding steel wires 17 are fixed, the motor 3 is started, the coupler 4 is driven to rotate by the motor 3, and further the torsion of the double-strand winding steel wires 17 is realized. Due to the tension of the tensioning spring 14, the lengths of the double-strand wound steel wires 17 are continuously reduced while the motor rotates, and when the lengths of the double-strand wound steel wires are just equal to the lengths of the radiating pipes, the inner core length limiting device 6 is triggered, and the motor stops rotating. At this time, the foot lever 28 is stepped down, the positioning pin 27 is separated from the positioning hole 26 on the left wheel 21 of the inner core winding unit 5, the inner core winding unit 5 is rotated to align the positioning pin 27 with the positioning hole 26 on the left wheel 21 of the inner core winding unit 5, the foot lever 28 is released, the positioning pin 27 is combined with the positioning hole 26 on the left wheel 21 of the inner core winding unit 5, the next coupling half 4 is engaged with the coupling half of the motor 3, and the next winding of the inner core can be performed by circulating in this way.
The invention can quicken the winding speed of the interpolation core, reduce the labor force and the processing cost, lead the interpolation core to be more uniform, lead the fluid flow in the pipe to be more uniform and have better heat transfer performance.
Drawings
FIG. 1 is a schematic diagram showing the left side structure of the whole manufacturing equipment 1 for winding to form a heat transfer insert core in a reinforced pipe
FIG. 2 is a schematic diagram of the right side structure of the whole manufacturing equipment 1 wound to form the heat transfer insert core in the reinforced pipe
Fig. 3 is a schematic diagram of the left side structure of the insert core winding unit 5
Fig. 4 is a right side schematic view of the insert core winding unit 5
Fig. 5 is a left side view of the insert core winding unit 5
Fig. 6 is a right side view of the insert core winding unit 5
FIG. 7 is a schematic view of the structure of the winding wire 17
FIG. 8 is a schematic diagram of the interposer 18
FIG. 9 is a schematic view of the insert core 18 inserted into the heat exchange tube 37
The insert core 18 of FIG. 10 is inserted into the heat exchange tube 37 Zhou Xiangtu
Reference numerals in the drawings: 1. an insert core manufacturing device; 2. a support frame; 3. a motor; 4. a magnetic coupling; 5. an insert core winding unit; 6. winding to form an interpolation core length limiting device; 7. a positioning device for winding wire length; 8. winding to form an inserting core placing frame; 9. an electric control cabinet; 10. an inner core winding unit circumferential positioning assembly, 11. An intermediate fixing frame; 12. a tensioning pulley; 13. a movable hook; 14. tensioning a spring; 15. tensioning the rope; 16 bolts; 17. winding wires; 18. an insert core; 19. angle iron; 20. a bearing sleeve; 21. a left wheel; 22. a right wheel; 23. a central shaft tube; 24. a conduit; 25. a slide rail; 26. positioning holes; 27. a positioning pin; 28. a foot pedal lever; 29. a fixed pulley; 30. a control line; 31. a fixed hook; 32. fixing the small hook; 33. a movable hook 34, one of the twined steel wires; 35. two strands of winding steel wires; 36. a steel spiral wire ring; 37. a heat exchange tube.
Parameter label in the figure: d1, diameter of steel wire of the steel spiral wire ring; d2 double-strand winding steel wire diameter; d i pipe inner diameter; the diameter D1 of the steel spiral wire ring; l is wound on the length of the steel wire; l' interpolates the core length.
Detailed Description
The diameter D1 and the appropriate D1 of the steel spiral wire loop 36 are determined based on the inner diameter D i of the heat exchange tube 37 and the closely fitting requirements of the formed insert 18 within the heat exchange tube 37.
The desired steel spiral wire loop 36 is made from steel wire having a diameter d 1.
Cutting a steel wire with a length diameter D2 which is 2 times the length diameter, double-folding to form two sections of steel wires, putting a specified steel spiral wire ring diameter D1 on one section of the steel wire, and manufacturing a steel spiral wire ring 36 by using the steel wire with the specified length diameter D1.
One end of the double-strand wound steel wire with the steel spiral wire ring 36 is knotted, so that the two steel wires form a closed structure, and the two ends are conveniently connected with the movable hook 13 and the fixed hook 31.
Two ends of double-strand wound steel wires 34 and 35 and a steel spiral wire ring 36 are respectively hung on the movable hook 13 and the fixed hook 31, one end of the fixed hook 31 is connected with the coupler 4, the other end of the fixed hook is arranged on the guide sliding rail 25, and the specific position of the movable hook 13 is determined according to the diameter D1 of the steel spiral wire ring 36, the diameters D1 of the steel spiral wires 34 and 35, the length of the double-strand wound steel spiral wire ring and the length of the pipe 37.
After the two ends of the double-strand winding steel wire 17 are fixed, the motor 3 is started, and the motor 3 drives the magnetic coupling 4 to rotate, so that the torsion of the double-strand winding steel wire 17 is realized.
Due to the tension of the tensioning spring 14, the tensioning spring 14 is gradually lengthened while the fixed hook rotates 31, the double-strand wound steel wire 17 continuously rotates along with the coupler 4, the length of the double-strand wound steel wire 17 is continuously reduced, and when the length of the double-strand wound steel wire is just equal to the length of the specified heat exchange tube 37, the inner core length limiting device 6 is triggered, and the motor 3 stops rotating.
The winding of the first insert core 18 is completed, the foot lever 28 is depressed, the insert core winding unit 5 is disengaged from the positioning hole 26, and the magnetic force half coupling 4 connected to the fixing hook 31 is separated from the motor-side magnetic force half coupling.
The inner core winding unit 5 is rotated, the positioning pins 27 are aligned with the adjacent positioning holes 26, the pedal rod 28 is loosened, the positioning pins 27 are matched with the positioning holes 26 on the left rotating wheel 21, the circumferential positioning of the inner core winding unit 5 is achieved, and the adjacent positioning holes 26 correspond to the attraction of the magnetic force half coupling 4 on the side of the inner core winding unit 5 and the motor side half coupling.
The wound inner core 18 is taken down from the movable hook 13 and the fixed hook 31 at the two ends, and the two ends of the next double-strand winding steel wires 34 and 35 and the steel spiral wire ring 36 are hung on the movable hook 13 and the fixed hook 31.
And starting the motor 3, and driving the coupler 4 to rotate by the motor 3 so as to realize torsion of the double-strand wound steel wires 17. In this way, a continuous circulation of the insert 18 is achieved.
The insert core 18 manufactured as described above is assembled into the heat exchange tube 37, thereby forming a heat exchange tube capable of enhancing convection heat transfer in the tube.
The above detailed description of the preferred embodiments of the present invention is not intended to limit the invention, but rather should be construed according to the appended claims.
Claims (10)
1. The manufacturing equipment (1) for the heat transfer interpolation core in the winding forming reinforced pipe is characterized by comprising a supporting frame (2), a motor (3), a magnetic force half coupler (4), an interpolation core winding unit (5), an interpolation core length limiting device (6) formed by winding, a wire length positioning device (7) formed by winding, an interpolation core placing frame (8) formed by winding, an electric control cabinet (9), an interpolation core winding unit circumferential positioning component (10), the motor (3) is fixed on the supporting frame (2), the motor (3) is connected with the magnetic force half coupler (4) on the interpolation core winding unit (5) through magnetic force attraction, the interpolation core winding unit (5) is arranged on the supporting frame (2), the wire length positioning device (7) is arranged on the interpolation core winding unit (5), the wire length positioning device (7) can control the length of a winding wire (17), the interpolation core winding unit circumferential positioning component (10) is arranged on the supporting frame (2), the interpolation core winding unit circumferential positioning component (5) is controlled to rotate an angle, the interpolation core length limiting device (6) is connected with the supporting frame (2) through bolts (16), the interpolation core winding unit can be manually placed on the supporting frame (2) at any position, the interpolation core can be manually placed on the supporting frame (8) at one side, the interpolation core can be manually placed on the supporting frame (18), the installation of the winding wire (17) and the disassembly of the inner inserting core (18) are convenient, and the electric control cabinet (9) is installed on the supporting frame (2).
2. The device (1) for manufacturing the heat transfer interpolation core in the winding forming reinforced pipe according to claim 1, wherein the supporting frame (2) is formed by welding a plurality of angle irons (19) and is used for supporting the interpolation core winding unit (5), the motor (3), the winding forming interpolation core length limiting device (6), the electric control cabinet (9) and the interpolation core winding unit circumferential positioning assembly (10).
3. The device (1) for manufacturing the heat transfer insert core in the winding forming reinforced pipe according to claim 2, wherein the insert core winding unit (5) is arranged on the supporting frame (2) and connected with the supporting frame (2) through a bearing sleeve (20), and comprises a positioning device (7) for winding wire length, a left rotating wheel (21), a right rotating wheel (22), a central shaft tube (23), eight guide pipes (24) and a sliding rail (25).
4. A winding forming reinforced in-pipe heat transfer insert core making apparatus (1) according to claim 3, characterized in that the positioning means (7) of the length of the winding wire is connected by an intermediate holder (11), a tensioning pulley (12), a movable hook (13), a tensioning spring (14), a tensioning rope (15), the positioning means (7) of the length of the winding wire controlling the length of the winding wire (17).
5. The manufacturing equipment (1) for the heat transfer insert core in the winding forming reinforced pipe according to claim 4, wherein eight winding side magnetic force half couplings (4) are arranged on the left rotating wheel (21); the winding side magnetic force half coupling (4) is fixed on the left rotating wheel (21) through bolts (16), and the motor (3) is started, and the motor side and the winding side magnetic force half coupling (4) are simultaneously rotated after being attracted, so that winding processing of the inner inserting core (18) is realized.
6. The manufacturing equipment (1) for the heat transfer interpolation core in the winding forming reinforced pipe according to claim 5, wherein the circumferential positioning component (10) of the interpolation core winding unit consists of a positioning hole (26), a positioning pin (27), a pedal rod (28), a fixed pulley (29) and a control wire (30), the positioning hole (26) is arranged on the left rotating wheel (21), the pedal rod (28) is arranged at the lower position of the supporting frame (2), the pedal rod (28) is connected with the control wire (30), and the rotation angle of the interpolation core winding unit (5) can be controlled, so that the positioning of the interpolation core winding unit (5) can be realized.
7. The manufacturing equipment (1) for the heat transfer insert core in the winding forming reinforced pipe according to claim 6, wherein the eight tensioning pulleys (12) are circumferentially and uniformly arranged on the right rotating wheel (22), and the movable hook (13), the tensioning spring (14) and the tensioning rope (15) are connected through the eight tensioning pulleys (12).
8. The device (1) for manufacturing the heat transfer insert core in the reinforced pipe formed by winding according to claim 7, wherein one middle fixing frame (11) is installed on the central shaft pipe (23), the middle fixing frame (11) is connected with eight tensioning springs (14), the tensioning springs (14) are connected with a tensioning rope (15) in a knotted mode, and the tensioning rope (15) is connected with a movable hook (13) through a tensioning pulley (12).
9. The device (1) for manufacturing the heat transfer insert core in the winding forming reinforced pipe according to claim 8, wherein the tensioning rope (15) is arranged in the guide pipe (24), the movable hook (13) is arranged on the sliding rail (25) of the guide pipe (24), the length of the winding wire (17) is controlled, and the tightness degree of the winding of the insert core (18) is controlled together with the insert core length limiting device (6); the movable hook (13) is provided with two movable hooks (33) for fixing the inner inserting core (18).
10. The manufacturing equipment (1) for the heat transfer insert core in the winding forming reinforced pipe according to claim 9, wherein eight fixed hooks (31) are arranged on the eight magnetic coupling parts (4); the fixed hook (31) is provided with two small fixed hooks (32) for fixing the inner inserting core (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010799057.8A CN114074154B (en) | 2020-08-11 | 2020-08-11 | Manufacturing equipment for winding and forming reinforced heat transfer inner inserting core in pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010799057.8A CN114074154B (en) | 2020-08-11 | 2020-08-11 | Manufacturing equipment for winding and forming reinforced heat transfer inner inserting core in pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114074154A CN114074154A (en) | 2022-02-22 |
| CN114074154B true CN114074154B (en) | 2024-04-26 |
Family
ID=80280018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010799057.8A Active CN114074154B (en) | 2020-08-11 | 2020-08-11 | Manufacturing equipment for winding and forming reinforced heat transfer inner inserting core in pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114074154B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249757A (en) * | 1970-05-06 | 1971-10-13 | Denco Miller Ltd | Tubular heat exchange element |
| GB1328371A (en) * | 1971-06-29 | 1973-08-30 | Midland Wire Cordage Co Ltd | Method of making turbulators for heat-exchange tubes |
| CN2078863U (en) * | 1990-11-01 | 1991-06-12 | 刘霖沛 | Horizontal volumetric heat-exchanger with turbulent helical |
| JPH1137686A (en) * | 1997-07-15 | 1999-02-12 | Mitsubishi Electric Corp | Heat exchanger and its manufacture |
| CN2410613Y (en) * | 2000-01-07 | 2000-12-13 | 清华大学 | Double helical spring heat-transfer strengthening pipe |
| CN103517775A (en) * | 2011-05-10 | 2014-01-15 | 阿尔弗雷德·凯驰两合公司 | Heat exchanger and method for producing same |
| JP2014062724A (en) * | 2012-09-20 | 2014-04-10 | Uchimura:Kk | Multiple pipe type heat exchanger |
| CN103983136A (en) * | 2014-05-16 | 2014-08-13 | 北京京诚凤凰工业炉工程技术有限公司 | Heat exchange tube and insertion piece |
| CN204396754U (en) * | 2015-01-13 | 2015-06-17 | 江苏透平密封高科技股份有限公司 | A kind of grooved ring storage wire form automatic winding machine manufactured for brush seal |
| CN210438182U (en) * | 2018-12-18 | 2020-05-01 | 河南钮力特电力科技有限公司 | Steel wire winding machine for fire hose joint |
-
2020
- 2020-08-11 CN CN202010799057.8A patent/CN114074154B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249757A (en) * | 1970-05-06 | 1971-10-13 | Denco Miller Ltd | Tubular heat exchange element |
| GB1328371A (en) * | 1971-06-29 | 1973-08-30 | Midland Wire Cordage Co Ltd | Method of making turbulators for heat-exchange tubes |
| CN2078863U (en) * | 1990-11-01 | 1991-06-12 | 刘霖沛 | Horizontal volumetric heat-exchanger with turbulent helical |
| JPH1137686A (en) * | 1997-07-15 | 1999-02-12 | Mitsubishi Electric Corp | Heat exchanger and its manufacture |
| CN2410613Y (en) * | 2000-01-07 | 2000-12-13 | 清华大学 | Double helical spring heat-transfer strengthening pipe |
| CN103517775A (en) * | 2011-05-10 | 2014-01-15 | 阿尔弗雷德·凯驰两合公司 | Heat exchanger and method for producing same |
| JP2014062724A (en) * | 2012-09-20 | 2014-04-10 | Uchimura:Kk | Multiple pipe type heat exchanger |
| CN103983136A (en) * | 2014-05-16 | 2014-08-13 | 北京京诚凤凰工业炉工程技术有限公司 | Heat exchange tube and insertion piece |
| CN204396754U (en) * | 2015-01-13 | 2015-06-17 | 江苏透平密封高科技股份有限公司 | A kind of grooved ring storage wire form automatic winding machine manufactured for brush seal |
| CN210438182U (en) * | 2018-12-18 | 2020-05-01 | 河南钮力特电力科技有限公司 | Steel wire winding machine for fire hose joint |
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| Publication number | Publication date |
|---|---|
| CN114074154A (en) | 2022-02-22 |
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