CN115041599A - Integrated forming and mounting process for horn mouth of inner expansion type flow guide pipe - Google Patents
Integrated forming and mounting process for horn mouth of inner expansion type flow guide pipe Download PDFInfo
- Publication number
- CN115041599A CN115041599A CN202210560370.5A CN202210560370A CN115041599A CN 115041599 A CN115041599 A CN 115041599A CN 202210560370 A CN202210560370 A CN 202210560370A CN 115041599 A CN115041599 A CN 115041599A
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- China
- Prior art keywords
- pipe
- flow guide
- guide pipe
- heat exchange
- bell mouth
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Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses an integral molding and mounting process of a bell mouth of an internal expanding type flow guide pipe, wherein an unprocessed flow guide pipe and a heat exchange pipe are mounted, one end of the flow guide pipe, to be processed, of the bell mouth is inserted into the heat exchange pipe to form a free end, and the other end of the flow guide pipe is connected with a small pipe plate to form a fixed end; forming the pipe orifice of the flow guide pipe inserted into the heat exchange pipe by using a bell mouth former until the periphery of the formed bell mouth is contacted with the inner wall of the heat exchange pipe, namely the outer diameter of the bell mouth is restricted by the inner diameter of the heat exchange pipe, and forming the bell mouth of the flow guide pipe; and taking the horn mouth former out of the heat exchange tube, leaving the flow guide tube at the installation position, and completing the horn mouth forming of the flow guide tube and the installation of the flow guide tube at one time. The invention can directly utilize the inner diameter of the heat exchange tube to restrict the forming size of the bell mouth, so that the outer diameter of the formed bell mouth of the flow guide tube is completely matched with the inner diameter of the heat exchange tube, and the bell mouth forming of the flow guide tube and the installation of the flow guide tube are completed at one time, thereby effectively avoiding various problems caused by the flow guide tube which is firstly processed and then assembled.
Description
Technical Field
The invention belongs to the technical field of equipment forming and mounting, and particularly relates to a horn mouth forming and mounting integrated process for a flow guide pipe in a fire pipe type waste heat boiler.
Background
The fire tube type waste heat boiler is a common waste heat recovery device in a chemical device, and the device utilizes high-temperature process gas flowing through a tube to exchange heat with water on a shell pass to generate steam.
In order to avoid the contact of high-temperature process gas and the main pipe plate and the over-high temperature of the main pipe plate, a small pipe plate is arranged at the inlet of the pipe pass, and a guide pipe is arranged between the small pipe plate and the main pipe plate; meanwhile, in order to avoid film boiling of the heat exchange pipe in the inlet area due to overhigh temperature, a flow guide pipe is required to be arranged at the inlet of the heat exchange pipe. The flow guide pipe is a short pipe with a bell mouth at the tail end, the outer diameter of the short pipe is smaller than the inner diameter of the heat exchange pipe, and a gap is arranged between the short pipe and the heat exchange pipe.
In the assembly of current honeycomb duct, insert the heat exchange tube after having processed the horn mouth of honeycomb duct afterbody earlier usually, because there is deviation, honeycomb duct horn mouth machining precision in the heat exchange tube internal diameter difficult to control, consequently easily have following problem: 1. if the external diameter of the bell mouth is larger, the bell mouth cannot be smoothly inserted into the heat exchange tube, and the inner wall of the heat exchange tube can be scratched due to strong installation; 2. if the external diameter of the bell mouth is small, the guide pipe is easy to be eccentrically installed, so that the annular gap between the outer wall of the guide pipe and the inner wall of the heat exchange pipe is too small, the heat insulation effect cannot be achieved, and the main pipe plate is over-heated; 3. if the external diameter of the bell mouth is small, the gap between the external diameter of the bell mouth and the internal diameter of the heat exchange tube is too large, the flow guide tube is installed insecurely, and when gas flows through the flow guide tube, the flow guide tube is easy to vibrate, and the heat exchange tube can be damaged seriously. In addition, when the horn mouth is formed at the tail part of the existing flow guide pipe, the problem that the former and the flow guide pipe are not concentric in the forming process is easy to occur, so that the forming precision of the horn mouth at the tail part of the flow guide pipe is not high, and the imagination that the horn mouth is inclined is caused.
Disclosure of Invention
The invention aims to: to the problems, the horn mouth forming and mounting integrated process for the draft tube in the fire tube type waste heat boiler is provided, the process can ensure that the horn mouth forming and the draft tube mounting of the draft tube are carried out simultaneously and are completed at one time, and therefore the problems existing in the process of machining and reassembling the draft tube are solved.
The invention is realized by the following technical scheme: the utility model provides an integrative technology of interior expanding honeycomb duct horn mouth shaping installation which characterized in that: the method comprises the following steps:
the method comprises the following steps: mounting an unprocessed flow guide pipe and a heat exchange pipe, inserting one end of the flow guide pipe, which is to be processed with a bell mouth, into the heat exchange pipe to form a free end, connecting the other end of the flow guide pipe with a small pipe plate to form a fixed end, and connecting the end part of the heat exchange pipe with a main pipe plate;
step two: forming the pipe orifice of the guide pipe inserted into the heat exchange pipe by using a bell mouth former arranged in the heat exchange pipe to form a bell mouth at the end part of the guide pipe until the periphery of the formed bell mouth is contacted with the inner wall of the heat exchange pipe, namely the outer diameter of the bell mouth is restricted by the inner diameter of the heat exchange pipe, and finishing the forming of the bell mouth of the guide pipe;
step three: and taking the horn mouth former out of the heat exchange tube, leaving the flow guide tube at the installation position, and completing the horn mouth forming of the flow guide tube and the installation of the flow guide tube at one time.
The invention relates to an integral molding and mounting process of a bell mouth of an internal expansion type guide pipe, which is characterized in that before the bell mouth is molded, an unprocessed guide pipe is inserted into a heat exchange pipe and fixed, then a bell mouth former is arranged in the heat exchange pipe, and the bell mouth is molded on the end part of the guide pipe;
or before the bell mouth forming, the unprocessed guide pipe and the bell mouth former are assembled and then are inserted into the pipe heat pipe together, and the bell mouth forming is carried out on the end part of the guide pipe.
The horn mouth forming and installing integrated process of the internal expansion type flow guide pipe comprises a columnar forming rod main body, wherein the forming rod main body comprises a concentric positioning section and a conical expansion section, the diameter of the concentric positioning section is smaller than the inner diameter of the flow guide pipe, the outer diameter of the conical expansion section is larger than the inner diameter of the flow guide pipe and smaller than the inner diameter of a heat exchange pipe, the forming rod main body is arranged in the heat exchange pipe, the concentric positioning section of the forming rod main body penetrates through the flow guide pipe, and the flow guide pipe is inserted into a free end pipe orifice in the heat exchange pipe by the conical expansion section of the forming rod main body through the axial movement of the forming rod main body to form the horn mouth.
The invention relates to an integral molding and mounting process of a bell mouth of an internal expansion type guide pipe, wherein centering support protruding parts are arranged on the periphery of a concentric positioning section along the circumferential direction of the concentric positioning section, the diameter of a supporting surface formed by the centering support protruding parts is not smaller than the inner diameter of the guide pipe, and the concentric positioning section of a forming rod main body is coaxial with the guide pipe through the centering support protruding parts.
The invention relates to an integral forming and mounting process of an inner expansion type flow guide pipe bell mouth, wherein a thread is arranged at the end part of a concentric positioning section of a forming rod main body, a nut is arranged at the thread end of the concentric positioning section, the concentric positioning section penetrates from the free end of a flow guide pipe to the fixed end of the flow guide pipe in the forming process of the bell mouth, the nut is abutted against the end surface of the pipe opening of the fixed end of the flow guide pipe by rotating the nut, and the forming rod main body moves in the axial direction relative to the flow guide pipe by utilizing the matching of the nut and the flow guide pipe; and after the horn mouth of the flow guide pipe is formed, taking down the nut, and taking out the forming rod main body from the other end of the heat exchange pipe.
The invention relates to an integral forming and mounting process of an internal expansion type flow guide pipe bell mouth, which is characterized in that a thread is arranged at the tail end of a forming rod main body, which is far away from a flow guide pipe, a heat exchange pipe extends out of the tail end of the forming rod main body, a nut is arranged at the thread end of the tail end of the forming rod main body, when the forming rod main body needs to be taken out of the heat exchange pipe, the nut at the end part of a concentric positioning section of the forming rod main body is firstly loosened, then the nut at the tail end of the forming rod main body is rotated to enable the tail end nut to be abutted against the end surface of a corresponding main pipe plate, and the forming rod main body moves along the axial direction far away from the flow guide pipe by utilizing the matching of the tail end nut and the main pipe plate, and is taken out.
According to the invention, the unprocessed flow guide pipe and the bell mouth former are assembled and then inserted into the heat exchange pipe, so that the flow guide pipe is subjected to bell mouth forming in the heat exchange pipe, the forming size of the bell mouth can be restrained by directly utilizing the inner diameter of the heat exchange pipe, the formed bell mouth outer diameter of the flow guide pipe is completely matched with the inner diameter of the heat exchange pipe, the bell mouth forming of the flow guide pipe and the installation of the flow guide pipe are completed at one time, and thus various problems caused by the fact that the flow guide pipe is firstly processed and then assembled are effectively avoided. In addition, in the horn mouth forming process of the honeycomb duct, the concentric positioning section of the forming rod main body is matched with the honeycomb duct, so that the horn mouth of the honeycomb duct is always kept coaxial with the forming rod main body and the honeycomb duct in the forming process, and the forming precision and the forming quality of the horn mouth are greatly improved.
Drawings
FIG. 1 is a schematic view of the flare of the present invention prior to forming.
FIG. 2 is a schematic view of the invention after the flare has been formed.
Fig. 3 is a schematic view of the take-out flare former of the present invention.
Fig. 4 is a schematic view of a bellmouth former used in the present invention.
In the figure: the device comprises a forming rod main body 1, a concentric positioning section 11, a conical expanding section 12, a centering supporting boss 13, a nut 14, a protective gasket 15, a guide pipe 2, a free end 21, a fixed end 22, a heat exchange pipe 3, a small pipe plate 4 and a main pipe plate 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, 2 and 3, an integral process for forming and installing bell mouths of an internal expansion type guide pipe comprises the following steps:
the method comprises the following steps: the unprocessed flow guide pipe 2 and the heat exchange pipe 3 are installed, one end of the flow guide pipe 2, to be processed into a bell mouth, is inserted into the heat exchange pipe 3 to form a free end 21, the other end of the flow guide pipe is connected with the small pipe plate 4 to form a fixed end 22, and the end part of the heat exchange pipe 3 is connected with the main pipe plate 5.
Specifically, before the bell mouth is formed, the unprocessed flow guide pipe 2 is inserted into the heat exchange pipe 3 and fixed, and then the bell mouth former is arranged in the heat exchange pipe 3 to form the bell mouth at the end part of the flow guide pipe 2.
As another mode, before the bell mouth forming, the unprocessed draft tube 2 is assembled with the bell mouth former, and then inserted into the heat exchange tube 3 together, and the bell mouth forming is performed on the end of the draft tube 2.
Step two: utilize the horn mouth former of setting in heat exchange tube 3 to insert the mouth of pipe to heat exchange tube 3 in honeycomb duct 2 and carry out the shaping, make 2 tip of honeycomb duct form the horn mouth, until the contact of fashioned horn mouth periphery and heat exchange tube 3's inner wall, the horn mouth external diameter receives the restraint of 3 internal diameters of heat exchange tube promptly, accomplishes the shaping of honeycomb duct 2 horn mouths.
As shown in fig. 4, the horn mouth former is including being cylindrical shaping pole main part 1, shaping pole main part 1 includes concentric locating section 11 and toper expansion section 12, the diameter of concentric locating section 11 is less than the internal diameter of honeycomb duct 2, the external diameter that toper expands section 12 is greater than the internal diameter of honeycomb duct 2 and is less than the internal diameter of heat exchange tube 3, arranges shaping pole main part 1 in heat exchange tube 3, makes the concentric locating section 11 of shaping pole main part 1 pass honeycomb duct 2, through shaping pole main part 1 in the ascending removal of axial, makes the toper expand the pipeline mouth by the extrusion, is the horn mouth by the shaping pole main part 1 toper expansion section 12 free end mouth of pipe in inserting honeycomb duct 2 in heat exchange tube 3.
In order to improve the accuracy and the quality of bell mouth molding, the periphery of the concentric positioning section 11 is provided with centering support protrusions 13 arranged along the circumferential direction of the concentric positioning section, the diameter of a supporting surface formed by the centering support protrusions 13 is not less than the inner diameter of the guide pipe 2, and the concentric positioning section 11 of the molding rod main body 1 is kept coaxial with the guide pipe 2 through the centering support protrusions 13.
The centering support protruding part 13 is composed of a plurality of groups of annular protruding structures which are arranged along the axial direction of the concentric positioning section 11 of the forming rod main body 1 at intervals, wherein each group of annular protruding structures is composed of a plurality of lugs which are uniformly distributed at intervals by taking the axial direction of the forming rod main body 1 as the center, the lugs are utilized to enable the concentric positioning section to form a circumferential multi-point support structure in the flow guide pipe, or each group of annular protruding structures is continuous and annular, and a circumferential linear support structure of the concentric positioning section is formed.
The centering support protruding part 13 is of a rigid structure or a flexible structure, when the centering support protruding part is of the rigid structure, the diameter of a support surface formed by the centering support protruding part is just matched with the inner diameter of the flow guide pipe, namely the rigid centering support protruding part can effectively play a role in positioning and supporting the concentric positioning section in the flow guide pipe so as to keep the coaxiality of the centering support protruding part and the flow guide pipe, and meanwhile, the movement of the concentric positioning section of the forming rod main body in the flow guide pipe cannot be influenced; when centering support protrusion is flexible construction, the diameter of the holding surface that centering support protrusion formed slightly is greater than the internal diameter of honeycomb duct, centering support protrusion and honeycomb duct interference fit promptly to play the location support to concentric positioning section in the honeycomb duct, with the axiality that keeps both, also can not influence the removal of the concentric positioning section of shaping pole main part in the honeycomb duct simultaneously.
Specifically, 11 tip in the concentric location section of shaping pole main part 1 are provided with the screw thread, the threaded end of 11 in the concentric location section is provided with nut 14, at horn mouth shaping in-process, the concentric location section 11 runs through to its stiff end by the free end of honeycomb duct 2, be provided with protection gasket 15 between nut 14 and the stiff end 22 terminal surface of honeycomb duct 2, through swivel nut 14, make nut 14 support and lean on the mouth of pipe terminal surface at honeycomb duct 2 stiff end, utilize the cooperation of nut 14 and honeycomb duct 2, make shaping pole main part 1 produce the removal in the axial for honeycomb duct 2, utilize the toper of shaping pole main part 1 to enlarge section 12 and accomplish the shaping of honeycomb duct horn mouth.
Step three: the bell mouth former is taken out of the heat exchange tube 3, the guide tube 2 is left at the installation position, and the bell mouth forming of the guide tube 2 and the installation of the guide tube 2 are completed at one time.
Specifically, after the bell mouth of the draft tube 2 is formed, the nut 14 is removed, and the formed rod body 1 is taken out from the other end of the heat exchange tube 3. Further, in order to take out in the heat exchange tube 3 for the convenience of shaping pole main part the tail end that honeycomb duct 2 was kept away from to shaping pole main part 1 is provided with the screw thread, heat exchange tube 3 extends out to the tail end of shaping pole main part 1, the screw thread end of shaping pole main part 1 tail end is provided with the nut, when needs take out shaping pole main part 1 by heat exchange tube 3, loosens the nut 14 of the concentric positioning section 11 tip of shaping pole main part 1 earlier, and the nut of the rotatory shaping pole main part 1 tail end of rethread makes the tail end nut support and leans on 5 terminal surfaces at the corresponding main tube sheet, utilizes the cooperation of tail end nut and main tube sheet 5, makes shaping pole main part 1 along the axial displacement who keeps away from honeycomb duct 2 to take out shaping pole main part 1.
The above description is intended to be illustrative of the present invention and should not be taken as limiting the invention, as the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The utility model provides an integrative technology of interior expanding honeycomb duct horn mouth shaping installation which characterized in that: the method comprises the following steps:
the method comprises the following steps: mounting an unprocessed flow guide pipe and a heat exchange pipe, inserting one end of the flow guide pipe, which is to be processed with a bell mouth, into the heat exchange pipe to form a free end, connecting the other end of the flow guide pipe with a small pipe plate to form a fixed end, and connecting the end part of the heat exchange pipe with a main pipe plate;
step two: forming the pipe orifice of the guide pipe inserted into the heat exchange pipe by using a bell mouth former arranged in the heat exchange pipe, so that the end part of the guide pipe forms a bell mouth until the periphery of the formed bell mouth is contacted with the inner wall of the heat exchange pipe, namely the outer diameter of the bell mouth is restricted by the inner diameter of the heat exchange pipe, and the forming of the bell mouth of the guide pipe is completed;
step three: and taking the horn mouth former out of the heat exchange tube, leaving the flow guide tube at the installation position, and completing the horn mouth forming of the flow guide tube and the installation of the flow guide tube at one time.
2. The forming and mounting integrated process for the bell mouth of the internal expansion type flow guide pipe according to claim 1 is characterized in that: before the bell mouth is formed, inserting an unprocessed guide pipe into a heat exchange pipe and fixing the guide pipe, then placing a bell mouth former into the heat exchange pipe, and carrying out bell mouth forming on the end part of the guide pipe;
or before the bell mouth forming, the unprocessed guide pipe and the bell mouth former are assembled and then are inserted into the pipe heat pipe together, and the bell mouth forming is carried out on the end part of the guide pipe.
3. The integrated forming and mounting process for the bell mouth of the internal expansion type flow guide pipe as claimed in claim 1 or 2, which is characterized in that: the horn mouth former is including being cylindrical shaping pole main part, the shaping pole main part enlarges the section including concentric location section and toper, the diameter of concentric location section is less than the internal diameter of honeycomb duct, the toper enlarges the external diameter of section and is greater than the internal diameter of honeycomb duct and is less than the internal diameter of heat exchange tube, arranges the shaping pole main part in the heat exchange tube, makes the concentric location section of shaping pole main part pass the honeycomb duct, through the removal of shaping pole main part in the axial, enlarges the section by the toper of shaping pole main part and inserts the free end mouth of pipe shaping in the heat exchange tube with the honeycomb duct and be the horn mouth.
4. The forming and mounting integrated process of the bell mouth of the internal expansion type flow guide pipe according to claim 3, is characterized in that: the periphery of the concentric positioning section is provided with centering support protrusions arranged along the circumferential direction of the concentric positioning section, the diameter of a supporting surface formed by the centering support protrusions is not smaller than the inner diameter of the guide pipe, and the concentric positioning section of the forming rod main body is coaxial with the guide pipe through the centering support protrusions.
5. The forming and mounting integrated process of the bell mouth of the internal expansion type flow guide pipe according to claim 4 is characterized in that: the end part of the concentric positioning section of the forming rod main body is provided with a thread, the thread end of the concentric positioning section is provided with a nut, the concentric positioning section penetrates from the free end of the flow guide pipe to the fixed end of the flow guide pipe in the horn mouth forming process, the nut is abutted against the end face of the pipe orifice of the fixed end of the flow guide pipe by rotating the nut, and the forming rod main body is axially moved relative to the flow guide pipe by the matching of the nut and the flow guide pipe; and after the horn mouth of the flow guide pipe is formed, taking down the nut, and taking out the forming rod main body from the other end of the heat exchange pipe.
6. The forming and mounting integrated process of the bell mouth of the internal expansion type flow guide pipe according to claim 5 is characterized in that: the tail end that the honeycomb duct was kept away from to the shaping pole main part is provided with the screw thread, the tail end of shaping pole main part extends the heat exchange tube, the screw thread end of shaping pole main part tail end is provided with the nut, when needs will become the shaping pole main part and take out by the heat exchange tube, loosens the nut of the concentric positioning section tip of shaping pole main part earlier, and the nut of rethread rotatory shaping pole main part tail end makes the tail end nut support and leans on the main pipe board terminal surface that corresponds, utilizes the cooperation of tail end nut and main pipe board, makes the shaping pole main part along the axial displacement who keeps away from the honeycomb duct to take out the shaping pole main part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210560370.5A CN115041599B (en) | 2022-05-23 | 2022-05-23 | Integral process for forming and installing horn mouth of internal expansion type honeycomb duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210560370.5A CN115041599B (en) | 2022-05-23 | 2022-05-23 | Integral process for forming and installing horn mouth of internal expansion type honeycomb duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115041599A true CN115041599A (en) | 2022-09-13 |
| CN115041599B CN115041599B (en) | 2024-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210560370.5A Active CN115041599B (en) | 2022-05-23 | 2022-05-23 | Integral process for forming and installing horn mouth of internal expansion type honeycomb duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115041599B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169440A (en) * | 1989-11-27 | 1991-07-23 | Showa Alum Corp | Manufacture of aluminum double pipe system heat exchanger |
| US20080236233A1 (en) * | 2007-03-26 | 2008-10-02 | Minor Rodger D | Rotary flaring tool and method of use |
| CN101862793A (en) * | 2009-04-16 | 2010-10-20 | 日高精机株式会社 | Pipe expander |
| KR101253465B1 (en) * | 2012-12-14 | 2013-04-10 | 권용무 | Viton-ring application type pipe expension apparatus, and manufacturing method for double pipe of heat exchange using the same |
| CN205137398U (en) * | 2015-10-27 | 2016-04-06 | 中国成达工程有限公司 | Synthetic gas waste heat boiler |
-
2022
- 2022-05-23 CN CN202210560370.5A patent/CN115041599B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169440A (en) * | 1989-11-27 | 1991-07-23 | Showa Alum Corp | Manufacture of aluminum double pipe system heat exchanger |
| US20080236233A1 (en) * | 2007-03-26 | 2008-10-02 | Minor Rodger D | Rotary flaring tool and method of use |
| CN101862793A (en) * | 2009-04-16 | 2010-10-20 | 日高精机株式会社 | Pipe expander |
| KR101253465B1 (en) * | 2012-12-14 | 2013-04-10 | 권용무 | Viton-ring application type pipe expension apparatus, and manufacturing method for double pipe of heat exchange using the same |
| CN205137398U (en) * | 2015-10-27 | 2016-04-06 | 中国成达工程有限公司 | Synthetic gas waste heat boiler |
Non-Patent Citations (1)
| Title |
|---|
| 王永沂: "平行扩管及端部锥孔成形扩管机", 压力容器, no. 05, 30 September 1997 (1997-09-30) * |
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| Publication number | Publication date |
|---|---|
| CN115041599B (en) | 2024-06-18 |
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