CN117583851B - Spade type heat exchanger and processing technology thereof - Google Patents
Spade type heat exchanger and processing technology thereof Download PDFInfo
- Publication number
- CN117583851B CN117583851B CN202410071138.4A CN202410071138A CN117583851B CN 117583851 B CN117583851 B CN 117583851B CN 202410071138 A CN202410071138 A CN 202410071138A CN 117583851 B CN117583851 B CN 117583851B
- Authority
- CN
- China
- Prior art keywords
- shaped
- cutting
- shaped shovel
- tube
- blade
- 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
- 238000012545 processing Methods 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 59
- 238000003491 array Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000007688 edging Methods 0.000 claims abstract description 4
- 241000251133 Sphyrna tiburo Species 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000005855 radiation Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
Abstract
The invention discloses a spade type heat exchanger and a processing technology thereof, wherein the spade type heat exchanger comprises a pipe body and a radiating fin array, the pipe body comprises a straight pipe section and an elbow section, the radiating fin array is arranged on the outer walls of two sides of the straight pipe section, and two ends of two adjacent straight pipe sections are connected through the elbow section; the radiating fin arrays consist of W-shaped shovels, and the radiating fin arrays at one side of two adjacent straight pipe sections are contacted with each other; the processing technology comprises the steps of tube blank body manufacturing, tube blank body edging, tube blank body cutting initial end, shovel piece, tail end cutting, splicing and the like. The invention provides the W-shaped shovel sheet which is in a W-folded plate shape in the transverse direction and in a small-angle arc trend in the height direction for the first time, the heat dissipation array structure is stable, a fold line type heat dissipation channel is formed, the heat dissipation area is greatly increased, and the heat dissipation efficiency is improved; the processing technology can rapidly finish the operations of cutting the primary end, the shovel blade and the tail end by changing the direction of the shovel blade of the W-shaped shovel blade, is suitable for automatic production line production, and the heat dissipation structure parameters of the obtained shovel blade can be adjusted.
Description
Technical Field
The invention relates to the technical field of heat exchangers and processing thereof, in particular to a spade type heat exchanger and a processing technology thereof.
Background
The spade type heat exchanger is widely applied in the heat transfer field, the spade type heat exchanger is formed by spading a single pure copper block or aluminum block into an integral fin type heat transfer material, and any joint is not arranged in the middle, so that a large heat dissipation area is created in a limited space; the shovel teeth can make the radiating fins thinner (thinner than the radiator of the cut section bar), and the space between the fins is small and can reach 0.8mm, so that the radiating quality and the radiating efficiency of the shovel-type heat exchanger are very reliable; meanwhile, the processing technology is simple and the cost is low.
But limited to the shovel plate processing technology, the existing shovel plate type heat exchanger generally adopts an array structure of plane radiating fins, the geometry of the plane radiating fins is too simple, and the thickness is thinner (in order to improve the radiating efficiency, the radiating fins are cut thinner), the hardness is lower, and the shovel plate type heat exchanger is easy to bend, deform or even damage under the impact force, so that the structural stability of the heat exchanger is ensured, and the existing shovel plate structure is required to be improved.
Disclosure of Invention
The invention aims to solve the defects in the prior art, refits the existing planar radiating fin into a W-shaped radiating fin with a special-shaped broken line structure, and develops a novel shovel blade and a shovel cutting processing method for realizing the structure, namely provides a shovel type heat exchanger and a processing technology thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention firstly provides a spade type heat exchanger, which comprises a pipe body and a radiating fin array, wherein the pipe body comprises straight pipe sections and elbow sections, the radiating fin array is arranged on the outer walls of two sides of the straight pipe sections, the radiating fin array is not arranged on the outer walls of the elbow sections, the spade type heat exchanger can be used for mounting and fixing the spade type heat exchanger, a plurality of straight pipe sections are arranged in parallel at equal intervals, and two ends of two adjacent straight pipe sections are connected through the elbow sections;
the radiating fin array consists of W-shaped shovels which are equidistantly distributed along the length direction of the straight pipe section, the cross section of the W-shaped shovels along the thickness direction is of a W-shaped strip structure, and the height direction of the W-shaped shovels presents an arc gradient;
the radiating fin arrays on one side of two adjacent straight pipe sections are contacted with each other, namely one end surfaces of two W-shaped shovel blades are contacted with each other to form an arc-shaped W-shaped corrugated plate structure, the problem that the existing shovel blade interactive inserting structure is adopted is avoided, when the lateral stress is applied, the two contacted W-shaped shovel blades are mutually abutted tightly to limit deformation, and when the front stress is applied, the W-shaped shovel blades are bent, and the impact force is dispersed by angles and is not easy to deform is solved, so that the defect that the existing shovel blade radiator is not impact-resistant is thoroughly overcome.
Preferably, the straight tube section is a flat straight tube structure, and the radiating fin arrays are arranged on two wider outer walls of the straight tube section so as to improve the radiating area.
Preferably, the straight pipe section and the elbow section are connected in a welding or integral forming mode, when the integral forming straight pipe section and the elbow section are selected, after the radiating fin array is processed on the outer wall of the straight pipe section, the elbow section is bent, and the process is difficult.
Preferably, the thickness of the W-shaped shovel sheet is 0.7-3mm, and the design can be carried out according to the heat dissipation requirement and the installation condition.
Preferably, the spacing between two adjacent W-shaped shovel blades in the radiating blade array is 0.5-5mm, and the spacing can be controlled according to the shoveling processing technology.
The invention also provides a corresponding processing technology of the shovel type heat exchanger, which comprises the following steps:
s1, manufacturing a tube blank body:
screening cuboid metal ingots, drilling holes in the center of the end face of the metal ingots, heating the hole wall to 1200-1300 ℃ on the inner wall of the holes, applying lubricating powder on the inner wall of the pipe, reaming blanks, expanding square holes, and cooling to obtain a pipe blank;
s2, edging the tube blank body:
the two side walls of the tube blank body are thin walls, the other two side walls are thick walls, the cutting thickness is reserved, the two side edges of the thick wall of the tube blank body in the width direction are cut, and the edge cutting is used for enabling the width of the W-shaped shovel piece to be smaller than that of the straight tube section, so that the W-shaped shovel piece is protected;
s3, cutting a primary end of the tube blank:
the tool is a W-shaped shovel head, the main body of the W-shaped shovel head is of a flat block structure, the upper edge of the upper surface of the W-shaped shovel head and the lower edge of the lower surface of the W-shaped shovel head are both W-shaped, the upper edge and the lower edge are arranged in parallel, the upper edge and the lower edge form a cutting surface which is arranged in a slope, and the gradient is 20-40 degrees;
cutting the end (1), namely horizontally feeding a W-shaped shovel cutter head with the width identical to that of the thick wall of the tube blank body, cutting and curling one end of the thick wall of the tube blank body, and enabling the distance between the feeding part and the inner wall of the tube blank body to be equal to the thickness of the thin wall of the tube blank body, so as to form a new tube wall;
cutting the end (2), feeding the W-shaped shovel head from the upper part of the thick wall of the tube blank body until the notch formed in the end (1) is cut, removing the waste blocks to form an arc-shaped cutting surface, wherein the gradient of the cutting surface is 40-60 degrees, the feeding direction is arc-shaped, and the included angle between the feeding direction and the cutting stopping direction is 5-10 degrees, so that a W-shaped shovel sheet with a certain radian in the height direction is formed conveniently;
s4, shoveling:
a step of shoveling the blade (1), namely cutting the blade with a certain thickness at one end of the thick wall of the tube blank body in a feeding direction and a feeding position parallel to the step of cutting the end (2), vertically and slowly lifting the W-shaped shovel blade head after stopping the cutter, and erecting the blade through the blade part to form the W-shaped shovel blade;
a step of shoveling the sheet (2), namely repeating the step of shoveling the sheet (1), and sequentially cutting a plurality of W-shaped shoveling sheets which are distributed at equal intervals;
when only one W-shaped shovel blade thickness is left in the original length direction of the thick wall of the pipe blank body, changing the position of a W-shaped shovel blade head and the feeding direction, namely, the lower blade position is vertically downward, the blade part is opposite to other W-shaped shovel blades, gradually rotating and changing the direction of the W-shaped shovel blade head, so that the movement track of the W-shaped shovel blade head is consistent with the arc shape of the height direction of the W-shaped shovel blade, and generating the last W-shaped shovel blade;
s5, cutting the tail end:
cutting the end (3), wherein the feeding direction of the end (1) is opposite to that of the end (3), the W-shaped shovel blade head horizontally feeds, the other end of the thick wall of the pipe blank is cut until the bottom end of the last W-shaped shovel blade of the shovel blade (3) stops, and the waste blocks are removed, so that a radiating fin array is obtained;
s6, assembling:
repeating the steps S2-S5, and processing the other thick wall of the tube blank to obtain a straight tube section with radiating fin arrays on both sides;
two ends of the adjacent straight pipe sections are welded through the elbow sections to form a snakelike pipe body, and two groups of W-shaped shovel blade end faces on one side of the two adjacent straight pipe sections are required to be in contact with each other and abutted against each other in the welding process to form a relatively stable array structure.
Preferably, the blank reaming needs multiple rounds of reaming, namely the reaming head is gradually increased in size, each time the blank reaming is performed by adopting a 2500-ton vertical reamer, the hot reaming speed is 160-230mm/s, and the reaming ratio is 1.15-1.41.
Preferably, the corners of the upper edge and the lower edge of the W-shaped shovel blade are rounded, and the straight line section of the upper edge and the straight line section corresponding to the lower edge form a plane, namely the cutting surface of the blade of the W-shaped shovel blade consists of 4 obliquely arranged planes and the rounded corner surface between the planes, so that the smoothness of cutting and feeding is facilitated.
In the S2-S6 process, the metal section is filled in the tube blank body, so that the tube blank body is convenient to fix, and deformation of the tube in the processing process is avoided.
Compared with the prior art, the invention has the beneficial effects that:
1. aiming at the defect that the structure of the existing planar heat dissipation shovel sheet is easy to bend, deform and even be damaged, the invention provides a novel structure of the W-shaped shovel sheet for the first time, when the front surface is stressed, the W-shaped shovel sheet is bent, and the impact force is dispersed by an angle and is not easy to deform;
2. aiming at the problems that when the planar heat dissipation shovel sheets of the existing adjacent pipelines are assembled, an interactive plug-in structure is adopted, so that the heat dissipation shovel sheets are often bent and contacted to form ventilation channels with different sizes, and the risks of dirt storage and ventilation channel blockage exist, the invention further designs the W-shaped shovel sheets into an arc trend which is in a W-folded plate shape and has a small angle (5-10 DEG) in the height direction, and the heat dissipation fin arrays at one side of two adjacent straight pipe sections are contacted with each other, namely one end surfaces of the two W-shaped shovel sheets are contacted with each other to form an arc W-shaped rib structure, and the two contacted W-shaped shovel sheets are mutually propped against each other to limit deformation; the heat radiation array structure is stable, and the fold line type heat radiation channel is formed, so that the heat radiation area is greatly increased, and the heat radiation efficiency is improved.
3. In order to realize the novel structure, the invention also provides a special W-shaped shovel blade head and a corresponding processing technology, the technology combines the characteristics of a seamless pipe processing process and a shovel blade processing process, the operations of cutting the initial end, the shovel blade and the tail end can be rapidly completed by changing the shovel blade direction of the W-shaped shovel blade head, the novel structure is suitable for automatic assembly line production, and the obtained shovel blade has adjustable heat dissipation structure parameters (such as thickness, interval and radian) and wide application range and is worthy of popularization.
Drawings
FIG. 1 is a perspective view of a spade heat exchanger according to the present invention;
FIG. 2 is a side view of a spade heat exchanger according to the present invention;
FIG. 3 is a diagram of an array structure of W-shaped spades in the spade heat exchanger according to the present invention;
FIG. 4 is a block diagram of a W-shaped shovel head used in the processing technology of the shovel type heat exchanger provided by the invention;
fig. 5 is a flow chart of a processing process of the spade heat exchanger provided by the invention.
In the figure: the heat dissipation device comprises a pipe body 1, a straight pipe section 101, an elbow section 102, a radiating fin array 2, a W-shaped shovel fin 201 and a W-shaped shovel blade head 3.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1:
referring to fig. 1-3, the spade type heat exchanger comprises a tube body 1 and a fin array 2, wherein the tube body 1 comprises straight tube sections 101 and elbow sections 102, the fin array 2 is arranged on the outer walls of two sides of the straight tube sections 101, the fin array 2 is not arranged on the outer walls of the elbow sections 102, the spade type heat exchanger can be used for mounting and fixing the spade type heat exchanger, a plurality of straight tube sections 101 are equidistantly and parallelly arranged, and two ends of two adjacent straight tube sections 101 are connected through the elbow sections 102;
the radiating fin array 2 consists of W-shaped shovel blades 201 which are equidistantly distributed along the length direction of the straight pipe section 101, the cross section of the W-shaped shovel blades 201 along the thickness direction is of a W-shaped strip structure, and the height direction of the W-shaped shovel blades 201 presents an arc gradient;
the radiating fin arrays 2 on one side of two adjacent straight pipe sections 101 are contacted with each other, namely, one end surfaces of two W-shaped shovel blades 201 are contacted with each other to form an arc-shaped W-shaped corrugated blade structure, so that the problem that the existing shovel blade radiator is not impact-resistant is thoroughly solved due to the fact that the two contacted W-shaped shovel blades 201 are mutually abutted to limit deformation when being stressed in the lateral direction, and the W-shaped shovel blades 201 are bent when being stressed in the front direction, and impact force is dispersed and not easy to deform due to the fact that the angle of the W-shaped shovel blades 201 is dispersed.
The straight tube section 101 is in a flat straight tube structure, and the fin arrays 2 are arranged on two wider outer walls of the straight tube section 101 to improve the heat dissipation area.
The straight pipe section 101 and the elbow section 102 are connected in a welding or integral forming mode, when the integral forming straight pipe section 101 and the elbow section 102 are selected, after the fin array 2 is processed on the outer wall of the straight pipe section 101, the elbow section 102 is bent, the process is difficult, success tests are only carried out on softer copper pipes in the factory, and the aluminum pipes and the iron pipes all adopt split welding structures.
Wherein, the thickness of the W-shaped shovel slice 201 is 0.7-3mm, and the design can be carried out according to the heat dissipation requirement and the installation condition.
Wherein, the distance between two adjacent W-shaped shovel blades 201 in the heat radiating fin array 2 is 0.5-5mm, and the distance can be controlled according to the shoveling processing technology.
Example 2:
the invention also provides a processing technology corresponding to the spade type heat exchanger in the embodiment 1, which comprises the following steps:
s1, manufacturing a tube blank body:
selecting a cuboid metal ingot, selecting a stainless steel ingot, drilling a hole in the center of the end face of the metal ingot by referring to a manufacturing process of a seamless steel tube, heating the hole wall to 1200-1300 ℃ on the inner wall of the hole, applying lubricating powder on the inner wall of the tube, performing blank reaming, performing reaming by adopting a 2500-ton vertical reamer, performing thermal reaming at a speed of 160-230mm/s and a reaming ratio of 1.08-1.41, enlarging a square hole, and cooling to obtain a tube blank;
s2, edging the tube blank body:
the two side walls of the tube blank body are thin walls, the other two side walls are thick walls, the cutting thickness is reserved, the two side edges of the thick wall of the tube blank body in the width direction are cut, and the edge cutting is used for enabling the width of the W-shaped shovel piece 201 to be smaller than that of the straight tube section 101, so that the W-shaped shovel piece 201 is protected;
s3, cutting a primary end of the tube blank:
as shown in fig. 4, the tool is a W-shaped shovel head 3,W, the main body of the shovel head 3 is of a flat block structure, the upper edge of the upper surface of the W-shaped shovel head 3 and the lower edge of the lower surface are both W-shaped, the upper edge and the lower edge are arranged in parallel, the upper edge and the lower edge form a cutting surface which is arranged in a slope way, and the gradient is 20-40 degrees;
the cutting end (1) shown in fig. 5 is performed by horizontally feeding a W-shaped shovel blade head 3,W with the width the same as the thick wall of the tube blank, cutting and curling one end of the thick wall of the tube blank, and enabling the distance between the feeding part and the inner wall of the tube blank to be equal to the thickness of the thin wall of the tube blank, so that a new tube wall is formed;
cutting the end (2) shown in fig. 5, feeding the W-shaped shovel blade head 3 from the upper part of the thick wall of the tube blank body until the notch is formed in the cutting end (1), removing waste blocks to form an arc-shaped cutting surface, calculating the gradient of the cutting surface by a plane formed by the straight line edges of the W teeth above and below 40-60 degrees, wherein the feeding direction is arc-shaped, and the included angle between the feeding direction and the cutting stopping direction is 5-10 degrees, so that the W-shaped shovel blade 201 with a certain radian in the height direction is formed conveniently;
s4, shoveling:
the step of cutting the blade (1) shown in fig. 5, cutting the blade with a certain thickness at one end of the thick wall of the tube blank body in the feeding direction and the feeding position parallel to the step of cutting the end (2), vertically and slowly lifting the W-shaped blade head 3 after stopping the cutting, and erecting the blade through the blade part to form the W-shaped blade 201;
step (2) of shoveling, shown in fig. 5, the step (1) of shoveling is repeated, and a plurality of W-shaped shoveling pieces 201 which are distributed equidistantly are sequentially cut;
when only one thickness of the W-shaped shovel blade 201 remains in the original length direction of the thick wall of the tube blank body, changing the position and feeding direction of the W-shaped shovel blade 3, namely, the lower cutter position is vertically downward and the blade part is opposite to other W-shaped shovel blades 201, gradually rotating to change the direction of the W-shaped shovel blade 3, so that the movement track of the W-shaped shovel blade 3 is consistent with the arc of the height direction of the W-shaped shovel blade 201, namely, the last W-shaped shovel blade 201 is generated;
s5, cutting the tail end:
the cutting end (3) shown in fig. 5 is opposite to the feeding direction of the cutting end (1), the W-shaped shovel blade head 3 horizontally feeds, the other end of the thick wall of the pipe blank is cut until the bottom end of the last W-shaped shovel blade 201 of the shovel blade (3) stops, and the waste blocks are removed, so that the radiating fin array 2 is obtained;
s6, assembling:
repeating S2-S5, and processing the other thick wall of the tube blank to obtain a straight tube segment 101 with radiating fin arrays 2 on both sides;
two ends of the adjacent straight pipe sections 101 are welded through the elbow sections 102 to form a serpentine pipe body 1, and two groups of W-shaped shovel blades 201 on one side of the two adjacent straight pipe sections 101 are required to be in contact with each other and abutted against each other in the welding process to form a relatively stable array structure.
Wherein, the blank reaming needs many times of reaming, namely the reaming head size gradually increases, each time the blank reaming adopts 2500 tons of vertical reamer to carry out reaming, the hot reaming speed is 160-230mm/s, and the reaming ratio is 1.15-1.41.
The corners of the upper edge and the lower edge of the W-shaped shovel head 3 are rounded, and the straight line section of the upper edge and the straight line section corresponding to the lower edge form a plane, namely the cutting surface of the edge of the W-shaped shovel head 3 is composed of 4 obliquely arranged planes and the rounded corner surface between the obliquely arranged planes, so that the smoothness of cutting and feeding is facilitated.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The spade type heat exchanger comprises a tube body (1) and a radiating fin array (2), and is characterized in that the tube body (1) comprises a straight tube section (101) and an elbow section (102), the radiating fin array (2) is arranged on the outer walls of two sides of the straight tube section (101), a plurality of straight tube sections (101) are equidistantly and parallelly arranged, and two ends of two adjacent straight tube sections (101) are connected through the elbow section (102);
the radiating fin array (2) is composed of W-shaped shovel blades (201) which are equidistantly distributed along the length direction of the straight pipe section (101), the cross section of the W-shaped shovel blades (201) along the thickness direction is of a W-shaped strip structure, and the height direction of the W-shaped shovel blades (201) presents an arc gradient;
the radiating fin arrays (2) at one side of two adjacent straight pipe sections (101) are contacted with each other, namely, one end surfaces of two W-shaped shovel blades (201) are contacted with each other, so that an arc-shaped W-shaped corrugated blade structure is formed;
the processing technology of the spade type heat exchanger comprises the following steps:
s1, manufacturing a tube blank body:
screening cuboid metal ingots, drilling holes in the center of the end face of the metal ingots, heating the hole wall to 1200-1300 ℃ on the inner wall of the holes, applying lubricating powder on the inner wall of the pipe, reaming blanks, expanding square holes, and cooling to obtain a pipe blank;
s2, edging the tube blank body:
the two side walls of the tube blank body are thin walls, the other two side walls are thick walls, the cutting thickness is reserved, the two side edges of the thick wall of the tube blank body in the width direction are cut, and the edge cutting is used for enabling the width of the W-shaped shovel piece (201) to be smaller than that of the straight tube section (101) and protecting the W-shaped shovel piece (201);
s3, cutting a primary end of the tube blank:
the tool is a W-shaped shovel head (3), the main body of the W-shaped shovel head (3) is of a flat block structure, the upper edge of the upper surface of the W-shaped shovel head (3) and the lower edge of the lower surface of the W-shaped shovel head are both W-shaped, the upper edge and the lower edge are arranged in parallel, the upper edge and the lower edge form a cutting surface which is arranged in a slope way, and the gradient is 20-40 degrees;
cutting the end (1), namely horizontally feeding the W-shaped shovel blade head (3) with the width being the same as the thick wall of the tube blank, cutting and curling one end of the thick wall of the tube blank, and enabling the distance between the feeding part and the inner wall of the tube blank to be equal to the thickness of the thin wall of the tube blank, so that a new tube wall is formed;
cutting the end (2), feeding the W-shaped shovel blade head (3) from the upper part of the thick wall of the tube blank body until the notch is formed in the end (1), removing the waste blocks to form an arc-shaped cutting surface, wherein the gradient of the cutting surface is 40-60 degrees, the feeding direction is arc-shaped, and the included angle between the feeding direction and the cutting stopping direction is 5-10 degrees, so that a W-shaped shovel blade (201) with a certain radian in the height direction is formed conveniently;
s4, shoveling:
a step of shoveling the blade (1), namely cutting a shovel blade with a certain thickness at one end of the thick wall of the tube blank body in a feeding direction and a feeding position parallel to the step of cutting the end (2), vertically and slowly lifting a W-shaped shovel blade head (3) after stopping the cutter, and erecting the shovel blade through a blade part to form a W-shaped shovel blade (201);
a step of shoveling the sheet (2), repeating the step of shoveling the sheet (1), and sequentially cutting a plurality of W-shaped shoveling sheets (201) which are distributed at equal intervals;
when only one W-shaped shovel blade (201) is left in the original length direction of the thick wall of the tube blank body, changing the position and the feeding direction of the W-shaped shovel blade (3), namely, the lower cutter position is vertically downward, the blade part is opposite to other W-shaped shovel blades (201), gradually rotating and changing the direction of the W-shaped shovel blade (3), so that the movement track of the W-shaped shovel blade is consistent with the arc of the height direction of the W-shaped shovel blade (201), namely, the last W-shaped shovel blade (201) is generated;
s5, cutting the tail end:
cutting the end (3), wherein the feeding direction of the end (1) is opposite, the W-shaped shovel blade head (3) horizontally feeds, and the other end of the thick wall of the pipe blank is cut until the bottom end of the last W-shaped shovel blade (201) of the shovel blade (3) stops, and the waste blocks are removed, so that the radiating fin array (2) is obtained;
s6, assembling:
repeating the steps S2-S5, and processing the other thick wall of the tube blank to obtain a straight tube section (101) with radiating fin arrays (2) on both sides;
two ends of adjacent straight pipe sections (101) are welded through elbow sections (102) to form a serpentine pipe body (1), and two groups of W-shaped shovel blades (201) on one side of each two adjacent straight pipe sections (101) are required to be in contact with each other and abutted against each other in the welding process to form a relatively stable array structure.
2. The spade heat exchanger according to claim 1, wherein the straight tube sections (101) are flat straight tube structures, and the fin arrays (2) are disposed on both wider outer walls of the straight tube sections (101).
3. The spade heat exchanger according to claim 1, wherein said straight tube sections (101) and said elbow sections (102) are connected by welding or integrally formed.
4. The spade heat exchanger according to claim 1, wherein said W-shaped spade (201) has a thickness of 0.7-3mm.
5. The spade heat exchanger according to claim 1, wherein the spacing between two adjacent W-shaped spades (201) in said fin array (2) is 0.5-5mm.
6. The spade heat exchanger according to claim 1, wherein said blank reaming requires multiple rounds of reaming, i.e., a gradually increasing reamer head size, each blank reaming using a 2500 ton vertical reamer, a thermal reaming rate of 160-230mm/s, a reaming ratio of 1.15-1.41.
7. The spade heat exchanger according to claim 1, wherein corners of the upper edge and the lower edge of the W-shaped spade head (3) are rounded, and straight line sections of the upper edge and corresponding straight line sections of the lower edge form a plane, namely, cutting surfaces of the edge of the W-shaped spade head (3) are composed of 4 obliquely arranged planes and rounded corner surfaces therebetween, so that smoothness of cutting and feeding is facilitated.
8. The spade heat exchanger according to claim 1, wherein during said S2-S6, the tube blank is internally filled with a metal profile, facilitating the fixing of the tube blank and avoiding deformation of the tube during processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410071138.4A CN117583851B (en) | 2024-01-18 | 2024-01-18 | Spade type heat exchanger and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410071138.4A CN117583851B (en) | 2024-01-18 | 2024-01-18 | Spade type heat exchanger and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117583851A CN117583851A (en) | 2024-02-23 |
| CN117583851B true CN117583851B (en) | 2024-04-02 |
Family
ID=89918669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410071138.4A Active CN117583851B (en) | 2024-01-18 | 2024-01-18 | Spade type heat exchanger and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117583851B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784776A (en) * | 1993-06-16 | 1998-07-28 | Showa Aluminum Corporation | Process for producing flat heat exchange tubes |
| JP3126846U (en) * | 2006-05-08 | 2006-11-09 | 深▲せん▼山源電器有限会社 | Enclosed positive temperature coefficient thermistor heater |
| CN105605942A (en) * | 2015-12-29 | 2016-05-25 | 江西鑫田车业有限公司 | Heat dissipater |
| CN210328350U (en) * | 2018-09-20 | 2020-04-14 | 镇江宏联电工有限公司 | Zigzag radiator |
| CN212747456U (en) * | 2020-07-23 | 2021-03-19 | 广东美的制冷设备有限公司 | Shovel sheet heat exchanger for air conditioner and air conditioner |
| CN213020004U (en) * | 2020-06-24 | 2021-04-20 | 青岛海尔空调器有限总公司 | Electric heating device for indoor unit of air conditioner and indoor unit of air conditioner |
| CN214308257U (en) * | 2020-12-15 | 2021-09-28 | 青岛山源颐隆散热器有限公司 | Shovel blade type water-cooled engine oil radiator |
| CN215864785U (en) * | 2021-08-30 | 2022-02-18 | 梁逸笙 | Clamping piece type heat exchanger |
| CN114505661A (en) * | 2022-02-15 | 2022-05-17 | 航天华盛源机电（苏州）有限公司 | Production method for shovel-tooth-shaped radiating fin and shovel-tooth machine |
-
2024
- 2024-01-18 CN CN202410071138.4A patent/CN117583851B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784776A (en) * | 1993-06-16 | 1998-07-28 | Showa Aluminum Corporation | Process for producing flat heat exchange tubes |
| JP3126846U (en) * | 2006-05-08 | 2006-11-09 | 深▲せん▼山源電器有限会社 | Enclosed positive temperature coefficient thermistor heater |
| CN105605942A (en) * | 2015-12-29 | 2016-05-25 | 江西鑫田车业有限公司 | Heat dissipater |
| WO2017114089A1 (en) * | 2015-12-29 | 2017-07-06 | 江西鑫田车业有限公司 | Heat dissipation device |
| CN210328350U (en) * | 2018-09-20 | 2020-04-14 | 镇江宏联电工有限公司 | Zigzag radiator |
| CN213020004U (en) * | 2020-06-24 | 2021-04-20 | 青岛海尔空调器有限总公司 | Electric heating device for indoor unit of air conditioner and indoor unit of air conditioner |
| CN212747456U (en) * | 2020-07-23 | 2021-03-19 | 广东美的制冷设备有限公司 | Shovel sheet heat exchanger for air conditioner and air conditioner |
| CN214308257U (en) * | 2020-12-15 | 2021-09-28 | 青岛山源颐隆散热器有限公司 | Shovel blade type water-cooled engine oil radiator |
| CN215864785U (en) * | 2021-08-30 | 2022-02-18 | 梁逸笙 | Clamping piece type heat exchanger |
| CN114505661A (en) * | 2022-02-15 | 2022-05-17 | 航天华盛源机电（苏州）有限公司 | Production method for shovel-tooth-shaped radiating fin and shovel-tooth machine |
Non-Patent Citations (1)
| Title |
|---|
| 瓦楞翅片碾压-铲削成形机理及试验研究;罗红平;卫亮;李增新;张永俊;;制造技术与机床;20130902(第09期);第98-101页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117583851A (en) | 2024-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100297189B1 (en) | High efficiency modular OEL heat exchanger with heat transfer promoting effect | |
| US5975196A (en) | Heat transfer tube | |
| EP1058079A3 (en) | Heat exchanger and method of making it | |
| EP0591094A1 (en) | Internally ribbed heat transfer tube | |
| JP3974526B2 (en) | Heat exchanger with brazing plate | |
| US4789027A (en) | Ribbed heat exchanger | |
| EP0108729B1 (en) | Method for making extended heat transfer surfaces and a tool for putting said method into practice | |
| US7413002B2 (en) | Corrugated fin and heat exchanger using the same | |
| DE102012023990A1 (en) | Heat exchanger tube, heat exchanger tube assembly and method of making same | |
| CN117583851B (en) | Spade type heat exchanger and processing technology thereof | |
| JP2002213889A (en) | Improved pipe used for serpentine fin heat exchanger | |
| WO2019234847A1 (en) | Heat exchanger | |
| JP2010121928A (en) | Heat exchanger and method for manufacturing the same | |
| EP0838650B1 (en) | Humped plate fin heat exchangers | |
| US20050257923A1 (en) | Tube feature for limiting insertion depth into header slot | |
| JPH0689994B2 (en) | Heat exchanger element and manufacturing method thereof | |
| CN212620242U (en) | Radiating tube structure with wavy flying wings | |
| JP6944469B2 (en) | Metal plate burring method | |
| CN110268219A (en) | Heating surface | |
| JPH04270892A (en) | Heat exchanger | |
| JPH10206061A (en) | Internally grooved tube and production thereof | |
| AU628091B2 (en) | Improved evaporator | |
| KR101566546B1 (en) | Louver fin type heat exchanger | |
| EP4155651A1 (en) | A flat tube for a heat exchanger | |
| KR102318527B1 (en) | Manufacturing method of cooling block and coolant flow plate for cooling block applied to radiator |
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 |