CN113927257B - Processing method of spiral baffle - Google Patents
Processing method of spiral baffle Download PDFInfo
- Publication number
- CN113927257B CN113927257B CN202111381364.5A CN202111381364A CN113927257B CN 113927257 B CN113927257 B CN 113927257B CN 202111381364 A CN202111381364 A CN 202111381364A CN 113927257 B CN113927257 B CN 113927257B
- Authority
- CN
- China
- Prior art keywords
- spiral
- ring
- inner ring
- baffle plate
- splicing
- 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
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to a processing method of a spiral baffle plate, which comprises the following processing stages: the forming stage of the inner ring A, the forming stage of the inner ring B, the forming stage of the outer ring C and the forming stage of the outer ring D are not necessary, and the forming stage of the outer ring C and the forming stage of the outer ring D can be combined in a plurality of times. The processing method can realize the industrialized processing of the spiral baffle plate with an ideal structure, and fills the technical blank in the field.
Description
Technical Field
The invention relates to the field of chemical machinery manufacturing, in particular to a processing method of a spiral baffle plate.
Background
Screw baffles are very widely used, screw baffles with a central false tube hole, segmented screw baffles, etc., one of which is a shell-and-tube heat exchanger of great value. In the process industry, the shell-and-tube heat exchanger accounts for 40-60% of the total equipment investment. For centuries, shell-and-tube heat exchangers have been mainly arched baffles, and the exploration of various baffle structures has never been stopped, wherein spiral baffle structures have been proposed by experts in 1925, but for centuries, no revolutionary breakthrough has been made for the exploration by numerous expert scholars due to the difficulty in processing.
The field of spiral baffle manufacture today forms a consensus that the ideal structure of the spiral baffle plates used in shell-and-tube heat exchangers is (as in fig. 1): the spiral curved surface is characterized by a straight line curved surface; no matter how large the outer diameter is, the helical baffle is one piece and the central bore helix tends to be straight (or the helix is in close proximity to the central most active heat exchanger); the cylindrical surfaces of the holes on the spiral baffle plates are parallel to the central axis.
The machining means such as forging, direct stretching and the like adopted in the prior art cannot obtain the spiral baffle plate which meets the requirements that the central hole spiral line tends to be straight (or the spiral line is close to and is attached to a heat exchange tube which plays a practical role in the center), and the shape of the curved surface is a straight line curved surface and the cylindrical surface of the hole is parallel to the central axis. The prior patent (CN202010558873. X) discloses a processing method for manufacturing a spiral baffle plate substrate by a process means of stretching, splicing and stretching a circular ring plate, wherein the processing object is that the spiral baffle plate substrate does not relate to a technical means of tube hole processing, and certain technical limitations exist in the processing method through production practice verification, namely when the difference between the inner diameter and the outer diameter of the circular ring plate exceeds more than 40 times of the thickness, the deformation of an inner spiral line and an outer spiral line is inconsistent, so that the spiral line of a central hole tends to be straight (or the spiral line is closely attached to a heat exchange tube which plays a role in the center) and the spiral baffle plate with a straight line curved surface shape can not be processed. In practice, the difference between the inner diameter and the outer diameter of the spiral line of the spiral baffle exceeds 40 times of the thickness, so that the existing processing method cannot realize the industrialized processing of the spiral baffle with an ideal structure.
Disclosure of Invention
The application provides a processing method of a spiral baffle plate, which solves or partially solves the technical problem that the existing processing method can not realize the industrialized processing of the spiral baffle plate with an ideal structure; the processing method capable of realizing industrial processing of the spiral baffle plate with the ideal structure is realized.
The processing method of the spiral baffle plate provided by the application comprises the following processing stages: the forming stage of the inner ring A, the forming stage of the inner ring B, the forming stage of the outer ring C and the forming stage of the outer ring D are not necessary, and the forming stage of the outer ring C and the forming stage of the outer ring D can be combined in a plurality of times in a crossing way;
the spiral baffle plate in the forming stage of the inner ring A can be formed by splicing 1-50 circles of spiral fan ring plates, and the spiral baffle plate in the forming stage of the outer ring C can be formed by splicing 1-50 circles of spiral fan ring plates;
the step of the inner ring forming stage A is divided into the following steps: a1 blanking, A2 dislocation, A3 multi-piece splicing, A4 stretching and A5 segmentation into a plurality of spiral fan ring plates, wherein the adjacent spiral fan ring plates of A6 are mutually spliced, when the spiral fan ring plate of the circle is the first circle on the inner side, the adjacent spiral fan ring plates of A6 are not required to be mutually spliced, and when the inner ring consists of a plurality of spiral fan ring plates, the steps A1 to A6 are repeatedly circulated; if a single-sheet molding process is adopted, a plurality of pieces of step A3 are not needed to be spliced and step A5 is not needed to be divided into a plurality of spiral fan ring plates, and step A2 dislocation and step A4 stretching can be combined into one step;
the step of the B inner ring opening stage is divided into: the processing holes can be selected to be part of holes or all holes required by processing products on the formed spiral baffle plate;
the step of the C outer ring forming stage is as follows: c1 blanking, C2 misplacement, C3 multi-piece splicing, C4 stretching and C5 segmentation into a plurality of spiral fan ring plates, wherein adjacent spiral fan ring plates of C6 are mutually spliced, when an outer ring consists of a plurality of spiral fan ring plates, steps C1-C6 are repeatedly circulated, if a single-piece forming process is adopted, the steps C3 multi-piece splicing and the steps C5 segmentation into a plurality of spiral fan ring plates are not needed, and the steps C2 misplacement and the steps C4 stretching can be combined into one step;
the step of the outer ring opening stage is divided into: d1, processing part of holes, D2 turning over and processing the rest holes, and if the holes required by the product can be completed at one time, turning over and processing the holes are not required;
the spiral fan ring plate with 1 or more turns of the inner ring A and the outer ring C can be formed by adopting a rolling method.
Preferably, the outer diameter of the spiral baffle plate is 50-10000 mm, the diameter of the processed hole of the spiral baffle plate is 6-200 mm, and the thickness of the spiral baffle plate is 1-50 mm.
Preferably, the helical baffle is made of metal.
Preferably, the hole can be formed by one or more of wire cutting, water jet cutting, laser cutting or drilling and milling.
Preferably, the blanking in the step A1 and the blanking in the step C1 are in a fan-shaped ring shape, the fan-shaped ring shape can be formed by splicing 1-50 small pieces, and the angle of the fan-shaped ring is 1-719 degrees.
Preferably, the spiral fan ring plates of the inner ring and the outer ring can be combined by different thickness sizes, but the spiral fan ring plates with uniform thickness are more ideal.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
the spiral baffle plate manufactured by the processing method of the spiral baffle plate has good interchangeability, the spiral surface of the spiral baffle plate (such as a straight-line curved surface (straight line perpendicular to the axis is spirally swept around the axis) obtained by processing can be guaranteed to be as far as possible, the straight-line curved surface spiral baffle plate is free from disconnection from the axis to the outer diameter, the spiral line of the central hole tends to be straight line, the cylindrical surfaces of all tube holes of the baffle plate are parallel to the central axis, and then the spiral baffle plate meeting the shape and position precision index requirements is obtained, so that the technical blank of the field is filled.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a straight curved spiral baffle provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a 4-stage process of the processing method according to the embodiment of the present application;
fig. 3 is a circuit diagram of a forming process of a1 st-turn (innermost-turn) spiral fan ring plate of an inner ring provided in an embodiment of the present application;
fig. 4 is a circuit diagram of an n-th (non-innermost) spiral fan ring plate forming process of an inner ring provided in an embodiment of the present application;
FIG. 5 is a circuit diagram of an outer ring spiral sector ring plate forming process provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a process of forming and then opening according to an embodiment of the present disclosure;
fig. 7 is a process layout of forming and perforation repeatedly crossing provided in an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The processing method of the spiral baffle plate is divided into 4 stages (shown in figure 2), namely an A inner ring forming stage, a B inner ring perforating stage, a C outer ring forming stage and a D outer ring perforating stage, and if the diameter of the spiral baffle plate is not large, only the A inner ring forming stage and the B inner ring perforating stage are needed. The reason for dividing the large diameter helical baffle into 4 stages is: 1) The holes of the inner ring are particularly difficult to process, particularly, the holes are processed at a large inclination angle close to the axis, the processing methods such as wire cutting and perforating are needed, the holes are processed firstly after the inner ring is formed, then the outer ring is spliced, and then the holes are processed, so that the equipment size and difficulty of the holes of the inner ring can be greatly reduced; 2) The inner ring is provided with holes and then can be used as a positioning reference, so that the problem of searching and positioning the relative positions of the outer ring holes is effectively solved.
In the process of stretching and forming the fan ring plate into the spiral fan ring plate, the inner circular arc circumference L11 of the fan ring plate corresponds to the inner spiral line length L12 of the spiral fan ring plate, the outer circular arc circumference L21 of the fan ring plate corresponds to the outer spiral line length L22 of the spiral fan ring plate, and the inner circular arc circumference L11 is calculated by theory: the deformation of the inner spiral line and the outer spiral line in the forming process of the spiral fan ring plate is inconsistent, when the difference of the inner diameter and the outer diameter of the fan ring plate is smaller, the difference of the deformation is smaller, the spiral fan ring plate with straight-line curved surface characteristics is easier to obtain, when the difference of the inner diameter and the outer diameter of the fan ring plate exceeds more than 40 times of the wall thickness, the spiral fan ring plate with straight-line curved surface characteristics can not be obtained by stretching, so that the spiral fan ring plate with the difference of the inner diameter and the outer diameter exceeding more than 40 times of the wall thickness can only be obtained by adopting a mode of splicing a plurality of spiral fan ring plates.
The forming stage of the inner ring A can be formed by splicing 1-50 circles of spiral fan ring plates, the forming process of the spiral fan ring plates of the inner ring is divided into a forming process of the spiral fan ring plate of the 1 st circle (the innermost circle) (shown in figure 3) and a forming process of the spiral fan ring plate of the n circle (the non-innermost circle) (shown in figure 4), the forming process of the spiral fan ring plate of the 1 st circle and the forming process of the spiral fan ring plate of the n circle are different in that the inner spiral line tends to be straight after the forming of the spiral fan ring plate of the 1 st circle, and the inner spiral line is close to and intersects with the outer spiral line of the semi-finished baffle plate after the forming of the spiral fan ring plate of the n circle. The forming process of the inner ring spiral fan ring plate can be divided into: 1) A multi-sheet molding process; 2) A single-sheet indirect forming process; 3) A single-chip direct molding process. The multi-piece forming process of the inner ring spiral fan ring plate comprises the following steps: a1 blanking, A2 dislocation, A3 multi-piece splicing, A4 stretching and A5 segmentation can be specifically as follows: and (3) re-dividing the stretched multi-piece inner ring spiral fan ring plate into a plurality of independent inner ring spiral fan ring plates.
The single-piece indirect forming process of the inner ring spiral fan ring plate comprises the following steps: a1 blanking, A2 dislocation and A4 stretching can be specifically as follows: the two radial ends of the fan-shaped annular plate are dislocated, and then the dislocated fan-shaped annular plate is stretched to form the inner ring of the spiral baffle plate. The single-piece direct molding process of the inner ring spiral fan ring plate comprises the following steps: a1 blanking and A4 stretching, which can be specifically: the fan-shaped annular plate is directly stretched to form the inner ring of the spiral baffle plate.
The forming stage of the outer ring C can be formed by splicing 1-50 circles of spiral fan ring plates, the forming process of the outer ring spiral fan ring plates is shown in figure 4, and the inner spiral line of the formed nth circle of spiral fan ring plates is nearly intersected with the outer spiral line of the semi-finished baffle plate. The forming process of the outer ring spiral fan ring plate can be divided into: 1) A multi-sheet molding process; 2) A single-sheet indirect forming process; 3) A single-chip direct molding process. The multi-piece forming process of the outer ring spiral fan ring plate comprises the following steps: c1 blanking, C2 dislocation, C3 multi-piece splicing, C4 stretching and C5 segmentation can be specifically as follows: dividing the stretched outer ring spiral fan ring plates into a plurality of independent outer ring spiral fan ring plates according to the axial section.
The single-piece indirect forming process of the outer ring spiral fan ring plate comprises the following steps: c1 blanking, C2 dislocation and C4 stretching, which can be specifically: the two radial ends of the fan-shaped annular plate are dislocated, and then the dislocated fan-shaped annular plate is stretched to form the spiral baffle plate outer ring. The single-piece direct molding process of the outer ring spiral fan ring plate comprises the following steps: c1 blanking and C4 stretching, which can be specifically: the fan-shaped annular plate is directly stretched to form the outer ring of the spiral baffle plate.
The inner ring forming stage A is completed and then the hole is processed, the inner ring can be composed of 1-50 circles of spiral fan ring plates, when the baffle plate is not large in size, the hole processing is completed once or a plurality of times, if the baffle plate is excessively large in size, all or part of the hole of the inner ring is processed, then the inner ring enters the C outer ring forming stage and the D outer ring perforating stage, the outer ring can be composed of 1-50 circles of spiral fan ring plates, and the C outer ring forming stage and the D outer ring perforating stage can be alternately performed for 1 time or a plurality of times. The step of the outer ring opening stage is divided into: d1, processing part of holes and D2 turning over and processing the rest of holes, and if the holes required by the product can be completed at one time, the step D2 of turning over and processing the rest of holes is not needed; in addition, the outer ring pore is formed by taking the inner ring pore as a positioning reference, and the outer ring pore is formed in the outer ring position of the spiral baffle plate in the direction from the central hole to the outer edge.
The spiral fan ring plate with 1 or more turns of the inner ring and the outer ring of the ring A can be formed by adopting a rolling method, namely, a method for machining the auger by using a steel belt through a rolling forming machine.
Examples of the embodiments
Referring to the drawings, a straight-line curved surface spiral baffle plate with the outer diameter of 1000mm, the pitch of 500mm and the thickness of 5mm for a shell-and-tube heat exchanger is processed by the following steps:
a1 blanking fan ring plates with the inner diameter of about 200mm, the outer diameter of about 350mm, fan ring angles of 359 degrees and the thickness of 5mm, respectively carrying out A2 dislocation on each plate, then splicing A3 multiple plates, wherein the splicing can adopt a welding mode to control the concentricity of each plate, then stretching A4 until the screw pitch of the plates is about 500mm, then disassembling, and carrying out A5 segmentation work to obtain the 1 st small circle of the spiral baffle plate with the inner spiral line diameter of about 15mm and the outer spiral line diameter of about 165 mm.
A1 blanking fan ring plates with the inner diameter of about 250mm and the outer diameter of 450mm, fan ring angles of 359 degrees and the thickness of 5mm, respectively carrying out A2 dislocation on each plate, then splicing A3 multiple plates, controlling concentricity of each plate by adopting a welding mode, stretching A4, knowing that the screw pitch of the plates is about 500mm, dismantling, carrying out A5 segmentation work to obtain a spiral baffle with the inner spiral line diameter of about 165mm and the outer spiral line diameter of about 365mm, and carrying out mutual splicing of A6 adjacent spiral fan ring plates to obtain the spiral baffle with the inner spiral line diameter of about 15mm, the outer spiral line diameter of about 365mm and the thickness of about 5 mm.
And (3) entering an opening stage of the inner ring B, and processing 5-20 holes with larger inclination angles in the middle of the formed spiral baffle plate.
C1 blanking fan ring plate with an inner diameter of about 415mm, an outer diameter of 715mm, a fan ring angle of 359 degrees and a thickness of 5mm, 1) when a multi-piece molding process is adopted, the steps are as follows: each plate is respectively subjected to C2 dislocation, then C3 multi-plate splicing is carried out, the concentricity of each plate can be controlled by adopting a welding mode, then C4 stretching is carried out until the pitch of the plate is about 500mm, and then the plates are disassembled for C5 segmentation; 2) When the single-piece indirect molding process is adopted, the steps are as follows: each plate is respectively subjected to C2 dislocation and then is stretched by C4 until the pitch of the plate is about 500mm; 3) When the single-piece direct molding process is adopted, the steps are as follows: each plate was C4 stretched separately until the pitch of the plate was about 500mm. The three processes can obtain the 3 rd turn of the spiral baffle plate with the inner spiral line diameter of about 365mm and the outer spiral line diameter of about 665mm, and the adjacent spiral fan ring plates of C6 are mutually spliced to obtain the spiral baffle plate with the inner spiral line diameter of about 15mm, the outer spiral line diameter of about 665mm and the thickness of about 5 mm.
The inner diameter of the C1 blanking fan ring plate is about 700mm, the outer diameter is 1035mm, the fan ring angle is 359 degrees, the thickness is 5mm, and the fan ring plate can be formed by splicing a plurality of small angles in view of material saving, for example, 6 fan ring plates with the fan ring angle of about 59 degrees are spliced into a fan ring plate with the fan ring angle of about 356 degrees. 1) When the multi-sheet molding process is employed, the steps are as follows: each plate is respectively subjected to C2 dislocation, then C3 multi-plate splicing is carried out, the concentricity of each plate can be controlled by adopting a welding mode, then C4 stretching is carried out until the pitch of the plate is about 500mm, and then the plates are disassembled for C5 segmentation; 2) When the single-piece indirect molding process is adopted, the steps are as follows: each plate is respectively subjected to C2 dislocation and then is stretched by C4 until the pitch of the plate is about 500mm; 3) When the single-piece direct molding process is adopted, the steps are as follows: each plate was C4 stretched separately until the pitch of the plate was about 500mm. The three processes can obtain the 4 th small circle of the spiral baffle plate with the inner spiral line diameter of about 665mm and the outer spiral line diameter of about 1000mm, and mutually splice adjacent spiral fan ring plates of C6 to obtain the spiral baffle plate with the inner spiral line diameter of about 15mm, the outer spiral line diameter of about 1000mm, the screw pitch of about 500mm and the thickness of about 5 mm.
Taking a hole machined in the B inner ring hole opening stage as a positioning reference, entering the D outer ring hole opening stage, and dividing the steps into: and D1 processing part of the holes and D2 turning over the rest of the holes, and if the holes required by the product can be finished at one time, the step D2 turning over the rest of the holes is not required.
To this end, the helical baffle having the characteristics of a straight-line curved surface, an inner diameter tending to be straight, an outer diameter of about 1000mm, a pitch of about 500mm, and a thickness of about 5mm is finished.
The forming stage of the outer ring and the perforating stage of the outer ring in the machining process C can be combined in a plurality of times in a crossing way, but the method has little significance for improving the efficiency.
In the processing process, 1 or more circles of spiral fan ring plates of the inner ring A and the outer ring C can be formed by adopting a rolling method, namely, a method for processing a packing auger by using a steel belt through a rolling forming machine (the method is a mature industrial production technology), the normal thickness of an inner spiral line of the spiral fan ring plate manufactured by the method is thicker, the normal thickness of an outer spiral line is thinner, and the method is only suitable for the condition that the diameter difference between the inner spiral line and the outer spiral line is smaller, and can realize processing, but has little significance for improving efficiency and economy.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (7)
1. The processing method of the spiral baffle plate is characterized by comprising the following processing stages: (1) an inner ring forming stage A and an inner ring perforating stage B; (2) An inner ring forming stage A, an inner ring perforating stage B, an outer ring forming stage C, an outer ring perforating stage D and splicing an inner ring and an outer ring E;
the spiral baffle plate in the forming stage of the inner ring A is formed by splicing 2-50 circles of spiral fan ring plates 1, and the spiral baffle plate in the forming stage of the outer ring C is formed by splicing 1-50 circles of spiral fan ring plates 2;
the step of the inner ring forming stage A is divided into the following steps: (1) when a multi-sheet molding process is adopted, the steps are as follows: A1. blanking, A2, dislocation, A3, multi-piece splicing, A4, stretching, A5, dividing into a plurality of spiral fan ring plates 1, and A6, mutually splicing adjacent spiral fan ring plates 1, and repeatedly circulating the steps A1 to A6; (2) when a single-piece indirect forming process is adopted, the steps are as follows: A1. blanking, A2, dislocation and A4, stretching; (3) when a single-piece direct molding process is adopted, the steps are as follows: A1. discharging and stretching A4;
the step of the B inner ring opening stage is divided into: selecting all holes required for processing products on the formed inner ring;
the step of the C outer ring forming stage is as follows: (1) when a multi-sheet molding process is adopted, the steps are as follows: C1. blanking, C2. dislocation, C3. multi-piece splicing, C4 stretching, C5. dividing into a plurality of spiral fan ring plates 2, mutually splicing C6. adjacent spiral fan ring plates 2, and repeatedly circulating in steps C1-C6; (2) when a single-piece indirect forming process is adopted, the steps are as follows: C1. blanking, C2. dislocation and C4 stretching; (3) when a single-piece direct molding process is adopted, the steps are as follows: C1. discharging and C4 stretching;
the step of the outer ring opening stage is divided into: d1, processing part of holes, D2 turning over and processing the rest holes, and if the holes required by the product are finished at one time, turning over and processing the holes are not required;
e, splicing the inner ring and the outer ring.
2. The method for processing a spiral baffle plate according to claim 1, wherein the outer diameter of the spiral baffle plate is 50-10000 mm, the diameter of the processed hole of the spiral baffle plate is 6-200 mm, and the thickness of the spiral baffle plate is 1-50 mm.
3. The method of manufacturing a helical baffle according to claim 1, wherein the helical baffle is made of metal.
4. The method of machining a helical baffle according to claim 1, wherein the holes are machined by one or more of wire cutting, water jet cutting, laser cutting or drilling and milling.
5. The method for processing the spiral baffle plate as claimed in claim 1, wherein the blanking in the step A1 and the blanking in the step C1 are in a fan-shaped form, the fan-shaped form is formed by splicing 2-50 small pieces, and the angle of the fan-shaped form is 1-719 degrees.
6. The method for manufacturing the spiral baffle according to claim 1, wherein the spiral fan ring plate 1 of the inner ring and the spiral fan ring plate 2 of the outer ring can be combined in different thickness dimensions.
7. The method for manufacturing the spiral baffle according to claim 1, wherein the one or more spiral fan ring plates 1 of the inner ring a and the one or more spiral fan ring plates 2 of the outer ring C can be formed by a rolling method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381364.5A CN113927257B (en) | 2021-11-21 | 2021-11-21 | Processing method of spiral baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381364.5A CN113927257B (en) | 2021-11-21 | 2021-11-21 | Processing method of spiral baffle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113927257A CN113927257A (en) | 2022-01-14 |
| CN113927257B true CN113927257B (en) | 2023-07-14 |
Family
ID=79287105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111381364.5A Active CN113927257B (en) | 2021-11-21 | 2021-11-21 | Processing method of spiral baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113927257B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117655367B (en) * | 2024-01-29 | 2024-04-23 | 山东豪迈机械制造有限公司 | Screw baffle plate perforating equipment and perforating method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415325A (en) * | 1934-01-19 | 1934-08-23 | Wellworthy Ltd | A step in the manufacture of piston-rings |
| DE10338180B3 (en) * | 2003-08-17 | 2005-04-28 | Erich Roos | Extruder screw manufacture involves assembling a stack of contored metal plates with spacers between on a screw shaft |
| CN1719187A (en) * | 2005-08-01 | 2006-01-11 | 西安交通大学 | Continuous helical deflecting plate pipe and shell type heat exchanger |
| CN110091082A (en) * | 2019-05-22 | 2019-08-06 | 武汉过控科技有限公司 | A kind of processing method of helical baffles pore |
| CN111457778A (en) * | 2020-06-04 | 2020-07-28 | 武汉过控科技有限公司 | Spiral baffle plate for shell-and-tube heat exchanger |
| CN111687602A (en) * | 2020-06-18 | 2020-09-22 | 武汉过控科技有限公司 | Method for processing spiral baffle plate substrate for shell-and-tube heat exchanger |
-
2021
- 2021-11-21 CN CN202111381364.5A patent/CN113927257B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415325A (en) * | 1934-01-19 | 1934-08-23 | Wellworthy Ltd | A step in the manufacture of piston-rings |
| DE10338180B3 (en) * | 2003-08-17 | 2005-04-28 | Erich Roos | Extruder screw manufacture involves assembling a stack of contored metal plates with spacers between on a screw shaft |
| CN1719187A (en) * | 2005-08-01 | 2006-01-11 | 西安交通大学 | Continuous helical deflecting plate pipe and shell type heat exchanger |
| CN110091082A (en) * | 2019-05-22 | 2019-08-06 | 武汉过控科技有限公司 | A kind of processing method of helical baffles pore |
| CN111457778A (en) * | 2020-06-04 | 2020-07-28 | 武汉过控科技有限公司 | Spiral baffle plate for shell-and-tube heat exchanger |
| CN111687602A (en) * | 2020-06-18 | 2020-09-22 | 武汉过控科技有限公司 | Method for processing spiral baffle plate substrate for shell-and-tube heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113927257A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113927257B (en) | Processing method of spiral baffle | |
| JP3792690B2 (en) | Manufacturing method of deformed heat transfer tube for heat exchanger | |
| CN105710273B (en) | Car constant-speed universal drive shaft circle-feeding technological parameter of swaging determines method | |
| CN113426846B (en) | Cylindrical tube formation | |
| WO2020147860A1 (en) | Method for forming nozzle component of aerospace engine | |
| JPWO2009072194A1 (en) | Manufacturing method of ultra-thin metal tube by cold rolling method | |
| CN111571157B (en) | Method for processing spiral baffle plate pipe hole for shell-and-tube heat exchanger | |
| CN212692667U (en) | Spiral baffle plate for shell-and-tube heat exchanger | |
| KR101794037B1 (en) | Method of manufacturing a spiral blade | |
| CN111457778A (en) | Spiral baffle plate for shell-and-tube heat exchanger | |
| JPS63137B2 (en) | ||
| JPH0819816A (en) | Production of cylindrical member | |
| US20220062967A1 (en) | Methods and machines for producing tubes by means of flow forming | |
| CN218532318U (en) | Rolling mandrel mechanism for inner diameter-variable seamless pipe | |
| JPH01202311A (en) | Method for expanding steel pipe in punched pipe | |
| JP3868797B2 (en) | Method and apparatus for manufacturing deformed pipe for rock bolt | |
| RU2709076C1 (en) | Method of making pipes in the form of a truncated cone and a device for realizing the method | |
| JPS63286220A (en) | Production of electric resistance welded tube | |
| JPS60247404A (en) | Continuous pipe drawing rolling mill | |
| JPS6068130A (en) | Method and device for forming cylindrical object | |
| KR20160120765A (en) | Die structure for form rolling of double-threaded body, method for form rolling of double-threaded body, and thread material for form rolling of double-threaded body | |
| JP2951211B2 (en) | Metal tube with internal floating pattern, method for manufacturing the same, and mandrel for the manufacture | |
| JPH04158907A (en) | Continuous stretch reducer for tube | |
| JPS62279008A (en) | Three rolls squeeze rolling method for round tube | |
| JP2951212B2 (en) | Metal tube with concave pattern on inner surface, method of manufacturing the same, and mandrel for manufacturing the same |
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 |