CN116748821A - Method for manufacturing heat exchange flat tube of cupola heat exchanger - Google Patents
Method for manufacturing heat exchange flat tube of cupola heat exchanger Download PDFInfo
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- CN116748821A CN116748821A CN202310928811.7A CN202310928811A CN116748821A CN 116748821 A CN116748821 A CN 116748821A CN 202310928811 A CN202310928811 A CN 202310928811A CN 116748821 A CN116748821 A CN 116748821A
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- exchange flat
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 claims abstract description 39
- 238000005452 bending Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 41
- 229910001220 stainless steel Inorganic materials 0.000 claims description 36
- 239000010935 stainless steel Substances 0.000 claims description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 238000003825 pressing Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchange flat tube manufacturing method of a cupola heat exchanger comprises the following process steps: s1, forming an upper component of a heat exchange flat tube: discharging the upper component of the heat exchange flat tube, bending and forming an arc section, forming an arc section round tube into a flat tube, and forming a straight section round tube into a flat tube; s2, forming a lower assembly of the heat exchange flat tube: discharging the lower component of the heat exchange flat tube, bending and forming an arc section, forming an arc section round tube into a flat tube, and forming a straight section round tube into a flat tube; s3, butt welding and forming the straight section tail ends of the upper assembly of the heat exchange flat tube and the lower assembly of the heat exchange flat tube, and manufacturing the heat exchange flat tube product. The heat exchange flat tube is low in cost, simple in working procedure, small in welding workload, high in production efficiency, easy to control the quality of the heat exchange flat tube, good in sealing effect, small in probability of water leakage, long in service life, high in heat exchange efficiency, easy to bend and form the heat exchange flat tube, and uniform in wall thickness of the bent tube. Can be widely applied to the field of heat exchange flat tube manufacture of cupola heat exchangers in the casting industry.
Description
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, which can be widely applied to the field of heat exchange flat tube manufacturing of the cupola heat exchanger in the casting industry.
Background
Currently, in the casting industry, the structural types of heat exchange flat tubes of a cupola heat exchanger generally comprise a round tube and a flat tube. The heat exchange flat tube manufacturing method of the traditional cupola heat exchanger comprises the following steps: when the heat exchange flat tube is manufactured, the heat exchange flat tube is divided into an upper assembly elbow, a middle straight section and a lower assembly elbow, and the upper assembly elbow, the middle straight section and the lower assembly elbow are manufactured respectively. The heat exchange flat tube upper assembly elbow consists of two sections, each section is divided into a left flap and a right flap, namely, each section is formed by pressing a stainless steel sheet into the left flap and the right flap through a die with a certain size, welding the left flap and the right flap together in a welding mode, and then welding the two sections. The lower assembly elbow of the heat exchange flat tube is manufactured in the same way. The conventional manufacturing mode of the middle straight section of the heat exchange flat tube is as follows: the heat exchange flat tube is formed by a plurality of sections with different lengths, each section is divided into a left section and a right section, each section is formed by pressing a stainless steel sheet through a die with a certain size, the left section and the right section are welded together in a welding mode, and then the straight sections of the heat exchange flat tube with different lengths are welded. And finally, butt welding the upper component elbow, the middle straight section and the lower component elbow of the heat exchange flat tube to form.
The existing heat exchange flat tube manufacturing method of the cupola heat exchanger is characterized in that the heat exchange flat tube is made of stainless steel thin plates through die pressing and forming and is manufactured in a welding mode. The heat exchange flat tube manufactured by the method has the defects of large number of welding lines, large welding workload, difficult manufacture, low production efficiency, difficult guarantee of the quality of the heat exchange flat tube and short service life. Moreover, the number of the welding seams is large, and the probability of water leakage at the welding seam position is high.
Disclosure of Invention
The invention aims to provide the heat exchange flat tube manufacturing method of the cupola furnace heat exchanger, which has the advantages of low manufacturing cost, simple working procedure, less welding seam number, small welding workload, high production efficiency, easy control of the quality of the heat exchange flat tube, good sealing effect, small probability of water leakage, long service life, high heat exchange efficiency, easy bending and forming of the heat exchange flat tube and uniform wall thickness of the bent tube.
In order to achieve the above purpose, the invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, which divides a heat exchange flat tube into two parts, namely a heat exchange flat tube upper part component in a high-temperature working environment and a heat exchange flat tube lower part component in a low-temperature working environment along the height direction, and comprises the following process steps:
s1, forming an upper component of a heat exchange flat tube;
s11, blanking a heat exchange flat tube upper component, namely cutting a blank of the heat exchange flat tube upper component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s12, bending and forming an upper assembly arc section of the heat exchange flat tube, namely heating a part to be bent of the upper assembly arc section through an induction heating device, and bending the upper assembly arc section by a hydraulic pipe bending machine to finish the manufacturing process of an upper assembly arc section bent pipe;
s13, forming a flat tube by using an arc section circular tube of an upper assembly of the flat tube, putting the bent arc section circular tube of the upper assembly of the flat tube into an arc section flattening forming die of the upper assembly, and flattening for a plurality of times until the arc section circular tube of the upper assembly forms the flat tube;
s14, forming the flat tube by using the straight round tube of the upper assembly of the flat tube, putting the straight round tube of the upper assembly of the flat tube into a flattening forming die for flattening the straight section of the upper assembly, and flattening the flat tube for a plurality of times until the straight round tube of the upper assembly forms the flat tube;
s2, forming a lower component of the heat exchange flat tube;
s21, blanking a heat exchange flat tube lower component, namely cutting a blank of the heat exchange flat tube lower component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s22, bending and forming the lower assembly arc section of the heat exchange flat tube, namely heating the part to be bent of the lower assembly arc section through an induction heating device, and bending the lower assembly arc section through a hydraulic pipe bending machine to finish the manufacturing process of the lower assembly arc section bent pipe;
s23, flattening the circular tube of the lower assembly arc section of the heat exchange flat tube, putting the bent circular tube of the lower assembly arc section of the heat exchange flat tube into a flattening and forming die of the lower assembly arc section, and flattening for a plurality of times until the circular tube of the lower assembly arc section forms a flat tube;
s24, forming a flat tube of the straight section round tube of the lower component of the heat exchange flat tube, putting the straight section round tube of the lower component of the heat exchange flat tube into a flattening forming die of the straight section of the lower component, and flattening the flat tube for a plurality of times until the straight section round tube of the lower component forms the flat tube;
s3, forming a heat exchange flat tube product;
welding and forming the upper assembly of the heat exchange flat tube and the lower assembly of the heat exchange flat tube, and butt-welding and forming the straight-section tail ends of the upper assembly of the manufactured heat exchange flat tube and the lower assembly of the heat exchange flat tube, thereby finally manufacturing the heat exchange flat tube product.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the height of a heat exchange flat tube upper component accounts for 33-40% of the height of the whole heat exchange flat tube.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper part component of the heat exchange flat tube is made of stainless steel seamless steel tube material with high temperature resistance of 1200 ℃.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper part component of the heat exchange flat tube is made of stainless steel seamless steel tube material with the material grade of 310S.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper part component of the heat exchange flat tube is made of a stainless steel seamless steel tube material with the material mark of 06Cr25Ni 20.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the lower part component of the heat exchange flat tube is made of stainless steel with high temperature resistance of 900 ℃.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a stainless steel seamless steel tube material with the material mark 321 is arranged on a lower part component of the heat exchange flat tube.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the lower part component of the heat exchange flat tube is made of a stainless steel seamless steel tube material with the material mark of 06Cr18Ni11 Ti.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a stainless steel seamless steel tube material with the material grade of 310S is a American standard, and the heat resistance is 1200 ℃. The stainless steel seamless steel tube material with the material mark of 06Cr25Ni20 is of Chinese standard and also resists high temperature of 1200 ℃. All have good heat resistance, oxidation resistance and corrosion resistance. Therefore, it can be used for both corrosion resistant parts and high temperature parts.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a stainless steel seamless steel tube material with a material mark 321 is a American standard, and the heat resistance is 900 ℃. The stainless steel seamless steel tube material with the material mark of 06Cr18Ni11Ti is of Chinese standard and also resists high temperature of 900 ℃. All have good heat resistance, oxidation resistance and corrosion resistance.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper component of the heat exchange flat tube is made of a material with high temperature resistance, the material cost is high, and the length of the heat exchange flat tube is reduced as much as possible under the condition of meeting the working environment of a high temperature section, so that the manufacturing cost of the heat exchange flat tube is low.
Compared with the traditional heat exchange flat tube manufacturing method, the heat exchange flat tube manufacturing method adopts stainless steel seamless steel tube materials, firstly, the three parts of an original upper assembly elbow, an original middle straight section and an original lower assembly elbow are simplified into two parts of a heat exchange flat tube upper assembly and a heat exchange flat tube lower assembly; secondly, compared with the traditional plate press forming, the invention adopts stainless steel seamless steel pipe material and adopts the press forming. The flat tube forming saves a plurality of working procedures, and a plurality of welding seams are reduced. Therefore, the invention has simple working procedure, less welding lines, small welding workload and high production efficiency. And because the number of the welding lines is small, the leakage hidden trouble of a plurality of welding lines is reduced, the sealing effect is good, the quality of the heat exchange flat tube is easy to control, the probability of water leakage is small, and the service life is long.
Compared with round tubes, the flat tube heat exchange tube manufacturing method of the cupola furnace heat exchanger has the advantages that the flat tube has larger heat dissipation area under the same volume, namely, the flat tube heat exchange area is large, the heat exchange capacity of the flat tube is better than that of the round tubes, the average surface heat transfer coefficient of the flat tube is improved by 9.04% compared with that of the round tubes, the heat exchange efficiency is improved to 53%, and the heat exchange efficiency is high.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, which adopts an induction heating device, has the characteristic of high heating speed in induction heating, is easy to bend and shape a heat exchange flat tube, and has uniform wall thickness of a bent tube.
In summary, the heat exchange flat tube manufacturing method of the cupola furnace heat exchanger has the advantages of low manufacturing cost, simple working procedure, small number of welding seams, small welding workload, high production efficiency, easy control of the quality of the heat exchange flat tube, good sealing effect, small probability of water leakage, long service life, high heat exchange efficiency, easy bending and forming of the heat exchange flat tube and uniform wall thickness of the bent tube.
Drawings
The invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is a schematic view of a heat exchange flat tube manufactured by a conventional manufacturing method;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion at B in FIG. 1;
FIG. 4 is an enlarged view of a portion at C in FIG. 1;
FIG. 5 is a schematic view of the upper assembly forming structure of the flat heat exchange tube of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic view of the forming structure of the lower assembly of the flat heat exchange tube of the present invention;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic view of a heat exchange flat tube product made in accordance with the present invention;
fig. 10 is a top view of fig. 9.
Detailed Description
In fig. 1 to 10, a welding line position a, a heat exchange flat tube upper component 1, a heat exchange flat tube lower component 2, and a heat exchange flat tube product 3; upper assembly elbow 4, middle straight section 5 and lower assembly elbow 6 of traditional heat transfer flat tube product, traditional heat transfer flat tube product.
In fig. 1 to 4, schematic diagrams related to the structure of a heat exchange flat tube manufactured by a conventional manufacturing method are shown. As can be seen in the figure: the heat exchange flat tube manufacturing method of the traditional cupola heat exchanger comprises the following steps: the heat exchange flat tube comprises an upper assembly elbow 4, a middle straight section 5 and a lower assembly elbow 6, wherein the heat exchange flat tube upper assembly elbow 4 comprises two sections, each section is divided into a left section and a right section, namely, each section is formed by pressing a stainless steel sheet into the left section and the right section through a die with a certain size, welding the left section and the right section together in a welding mode, and welding the two sections. The elbow of the lower component 6 of the heat exchange flat tube is manufactured in the same way. The conventional manufacturing mode of the middle straight section 5 of the heat exchange flat tube is as follows: the heat exchange flat tube is formed by a plurality of sections with different lengths, each section is divided into a left section and a right section, each section is formed by pressing a stainless steel sheet through a die with a certain size, the left section and the right section are welded together in a welding mode, and then the straight sections of the heat exchange flat tube with different lengths are welded. And finally, butt welding and forming the upper component elbow, the middle straight section and the lower component elbow of the heat exchange flat tube to form a traditional heat exchange flat tube product.
The heat exchange flat tube manufacturing method of the existing cupola furnace heat exchanger is characterized in that a stainless steel sheet is pressed and formed through a die, the heat exchange flat tube is manufactured through a welding mode, welding seams are arranged inside and outside the heat exchange flat tube, the welding seams are arranged on the upper side, the lower side, the left side and the right side, at least 11 welding seams a are arranged on the whole body, and the heat exchange flat tube manufactured through the method has the defects of large number of welding seams, large welding workload, difficult manufacturing, low production efficiency, difficult guarantee of the quality of the heat exchange flat tube and short service life.
In fig. 5 to 10, the method for manufacturing the heat exchange flat tube of the cupola heat exchanger divides the heat exchange flat tube into two parts, namely, a heat exchange flat tube upper part assembly 1 in a high-temperature working environment and a heat exchange flat tube lower part assembly 2 in a low-temperature working environment along the height direction, and comprises the following process steps:
s1, forming a heat exchange flat tube upper assembly 1;
s11, blanking a heat exchange flat tube upper component, namely cutting a blank of the heat exchange flat tube upper component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s12, bending and forming an upper assembly arc section of the heat exchange flat tube, namely heating a part to be bent of the upper assembly arc section through an induction heating device, and bending the upper assembly arc section by a hydraulic pipe bending machine to finish the manufacturing process of an upper assembly arc section bent pipe;
s13, forming a flat tube by using an arc section circular tube of an upper assembly of the flat tube, putting the bent arc section circular tube of the upper assembly of the flat tube into an arc section flattening forming die of the upper assembly, and flattening for a plurality of times until the arc section circular tube of the upper assembly forms the flat tube;
s14, forming the flat tube by using the straight round tube of the upper assembly of the flat tube, putting the straight round tube of the upper assembly of the flat tube into a flattening forming die for flattening the straight section of the upper assembly, and flattening the flat tube for a plurality of times until the straight round tube of the upper assembly forms the flat tube;
s2, forming a heat exchange flat tube lower assembly 2;
s21, blanking a heat exchange flat tube lower component, namely cutting a blank of the heat exchange flat tube lower component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s22, bending and forming the lower assembly arc section of the heat exchange flat tube, namely heating the part to be bent of the lower assembly arc section through an induction heating device, and bending the lower assembly arc section through a hydraulic pipe bending machine to finish the manufacturing process of the lower assembly arc section bent pipe;
s23, flattening the circular tube of the lower assembly arc section of the heat exchange flat tube, putting the bent circular tube of the lower assembly arc section of the heat exchange flat tube into a flattening and forming die of the lower assembly arc section, and flattening for a plurality of times until the circular tube of the lower assembly arc section forms a flat tube;
s24, forming a flat tube of the straight section round tube of the lower component of the heat exchange flat tube, putting the straight section round tube of the lower component of the heat exchange flat tube into a flattening forming die of the straight section of the lower component, and flattening the flat tube for a plurality of times until the straight section round tube of the lower component forms the flat tube;
s3, forming a heat exchange flat tube product 3;
welding and forming the upper assembly of the heat exchange flat tube and the lower assembly of the heat exchange flat tube, and butt-welding and forming the straight-section tail ends of the upper assembly of the manufactured heat exchange flat tube and the lower assembly of the heat exchange flat tube, thereby finally manufacturing the heat exchange flat tube product.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the height of a heat exchange flat tube upper assembly 1 accounts for 33-40% of the height of the whole heat exchange flat tube.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper part component 1 of the heat exchange flat tube is made of stainless steel seamless steel tube material with high temperature resistance of 1200 ℃.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a stainless steel seamless steel tube material with the material grade of 310S is arranged on an upper component 1 of the heat exchange flat tube.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the upper part component 1 of the heat exchange flat tube is made of a stainless steel seamless steel tube material with the material mark of 06Cr25Ni 20.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a lower part component 2 of the heat exchange flat tube is made of stainless steel with high temperature resistance of 900 ℃.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein a stainless steel seamless steel tube material with the material mark 321 is arranged on a lower part component 2 of the heat exchange flat tube.
The invention relates to a heat exchange flat tube manufacturing method of a cupola heat exchanger, wherein the lower part component 2 of the heat exchange flat tube is made of a stainless steel seamless steel tube material with the material mark of 06Cr18Ni11 Ti.
In view of the foregoing, it should be noted that the present invention is not limited to the above-described specific embodiments, but rather should be construed as embodied in a generic and specific manner within the art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention will fall within the scope of the technical solution of the present invention, without departing from the scope of the technical solution of the present invention.
Claims (8)
1. A heat exchange flat tube manufacturing method of a cupola heat exchanger is characterized in that a heat exchange flat tube is divided into an upper part component of the heat exchange flat tube in a high-temperature working environment and a lower part component of the heat exchange flat tube in a low-temperature working environment along the height direction, and the method comprises the following process steps:
s1, forming an upper component of a heat exchange flat tube;
s11, blanking a heat exchange flat tube upper component, namely cutting a blank of the heat exchange flat tube upper component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s12, bending and forming an upper assembly arc section of the heat exchange flat tube, namely heating a part to be bent of the upper assembly arc section through an induction heating device, and bending the upper assembly arc section by a hydraulic pipe bending machine to finish the manufacturing process of an upper assembly arc section bent pipe;
s13, forming a flat tube by using an arc section circular tube of an upper assembly of the flat tube, putting the bent arc section circular tube of the upper assembly of the flat tube into an arc section flattening forming die of the upper assembly, and flattening for a plurality of times until the arc section circular tube of the upper assembly forms the flat tube;
s14, forming the flat tube by using the straight round tube of the upper assembly of the flat tube, putting the straight round tube of the upper assembly of the flat tube into a flattening forming die for flattening the straight section of the upper assembly, and flattening the flat tube for a plurality of times until the straight round tube of the upper assembly forms the flat tube;
s2, forming a lower component of the heat exchange flat tube;
s21, blanking a heat exchange flat tube lower component, namely cutting a blank of the heat exchange flat tube lower component with an arc section and a straight section on a blanking cutting machine by adopting stainless steel seamless steel tube materials;
s22, bending and forming the lower assembly arc section of the heat exchange flat tube, namely heating the part to be bent of the lower assembly arc section through an induction heating device, and bending the lower assembly arc section through a hydraulic pipe bending machine to finish the manufacturing process of the lower assembly arc section bent pipe;
s23, flattening the circular tube of the lower assembly arc section of the heat exchange flat tube, putting the bent circular tube of the lower assembly arc section of the heat exchange flat tube into a flattening and forming die of the lower assembly arc section, and flattening for a plurality of times until the circular tube of the lower assembly arc section forms a flat tube;
s24, forming a flat tube of the straight section round tube of the lower component of the heat exchange flat tube, putting the straight section round tube of the lower component of the heat exchange flat tube into a flattening forming die of the straight section of the lower component, and flattening the flat tube for a plurality of times until the straight section round tube of the lower component forms the flat tube;
s3, forming a heat exchange flat tube product;
welding and forming the upper assembly of the heat exchange flat tube and the lower assembly of the heat exchange flat tube, and butt-welding and forming the straight-section tail ends of the upper assembly of the manufactured heat exchange flat tube and the lower assembly of the heat exchange flat tube, thereby finally manufacturing the heat exchange flat tube product.
2. The method for manufacturing the heat exchange flat tube of the cupola furnace heat exchanger according to claim 1, wherein the height of the upper assembly of the heat exchange flat tube is 33% -40% of the height of the whole heat exchange flat tube.
3. The method for manufacturing the heat exchange flat tube of the cupola furnace heat exchanger according to claim 1, wherein the upper part component of the heat exchange flat tube is made of stainless steel seamless steel tube material resistant to high temperature of 1200 ℃.
4. The method for manufacturing the heat exchange flat tube of the cupola heat exchanger according to claim 1, wherein the upper part component of the heat exchange flat tube is made of stainless steel seamless steel tube with the material number of 310S.
5. The method for manufacturing the heat exchange flat tube of the cupola heat exchanger according to claim 1, wherein the upper part component of the heat exchange flat tube is made of a stainless steel seamless steel tube with the material mark of 06Cr25Ni 20.
6. The method for manufacturing the heat exchange flat tube of the cupola furnace heat exchanger according to claim 1, wherein the lower part component of the heat exchange flat tube is made of stainless steel with high temperature resistance of 900 ℃.
7. The method for manufacturing the heat exchange flat tube of the cupola heat exchanger according to claim 1, wherein the lower part component of the heat exchange flat tube is made of stainless steel seamless steel tube with the material number of 321.
8. The method for manufacturing the heat exchange flat tube of the cupola heat exchanger according to claim 1, wherein the lower part component of the heat exchange flat tube is made of a stainless steel seamless steel tube with the material mark of 06Cr18Ni11 Ti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310928811.7A CN116748821A (en) | 2023-07-27 | 2023-07-27 | Method for manufacturing heat exchange flat tube of cupola heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310928811.7A CN116748821A (en) | 2023-07-27 | 2023-07-27 | Method for manufacturing heat exchange flat tube of cupola heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116748821A true CN116748821A (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310928811.7A Pending CN116748821A (en) | 2023-07-27 | 2023-07-27 | Method for manufacturing heat exchange flat tube of cupola heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116748821A (en) |
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2023
- 2023-07-27 CN CN202310928811.7A patent/CN116748821A/en active Pending
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