CN114353577B - Production method of heat exchange coil pipe with heat conduction profile with auxiliary fins - Google Patents
Production method of heat exchange coil pipe with heat conduction profile with auxiliary fins Download PDFInfo
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- CN114353577B CN114353577B CN202111665562.4A CN202111665562A CN114353577B CN 114353577 B CN114353577 B CN 114353577B CN 202111665562 A CN202111665562 A CN 202111665562A CN 114353577 B CN114353577 B CN 114353577B
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000005520 cutting process Methods 0.000 claims description 44
- 239000007787 solid Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 11
- 210000004400 mucous membrane Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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Abstract
The invention relates to a heat exchange coil with a heat conduction profile with auxiliary fins, which comprises a heat exchange coil body, wherein the heat exchange coil body comprises a straight pipe section and a bent pipe section, the heat conduction profile with the auxiliary fins is arranged in the straight pipe section of the heat exchange coil body, the heat conduction profile with the auxiliary fins comprises a round core rod arranged along the direction of the heat exchange coil body, a main fin is arranged outside the core rod, and an auxiliary fin is arranged outside the main fin. The fluid in the heat exchange coil with the heat conducting section with the auxiliary fins can be conducted to the heat exchange coil body through the heat conducting section with the built-in tube with excellent heat conduction, so that the heat exchange quantity and the heat exchange speed are greatly increased.
Description
Technical Field
The invention relates to a heat exchange coil with a heat conduction profile with auxiliary fins.
Background
Heat exchange coils are widely used for heat exchange of various fluids. The fluid flows in the tube, especially some liquid with viscosity, which can generate a layer of mucous membrane on the inner tube wall to prevent the heat conduction of the fluid heat to the heat exchange coil, thereby greatly reducing the heat exchange of the fluid to the heat exchange coil.
Disclosure of Invention
The invention aims to overcome the defects and provide the heat exchange coil pipe with the heat conduction profile with the auxiliary fins, which has good heat exchange effect.
The purpose of the invention is realized in the following way:
the utility model provides a heat exchange coil with take heat conduction section bar of vice fin, includes the heat exchange coil main part, and the heat exchange coil main part includes straight pipe section and curved pipe section, be provided with the heat conduction section bar of taking vice fin in the straight pipe section of heat exchange coil main part, the heat conduction section bar of taking vice fin includes along the circular shape plug that heat exchange coil main part direction set up, is provided with main fin outside the plug, is provided with vice fin outside the main fin.
Preferably, the first fin groups and the second fin groups are staggered on the mandrel along the length direction of the mandrel, the lengths of the first fin groups and the second fin groups are equal, a fin group gap is formed between the first fin groups and the second fin groups, ninety-degree dislocation angles are formed between the first fin groups and the second fin groups, and the first fin groups and the second fin groups have the same structure except ninety-degrees of dislocation along the axial direction of the mandrel.
Preferably, the main fins are uniformly and divergently arranged along the center of the mandrel, a plurality of auxiliary fins symmetrically extend out of the main fins towards two sides of the main fins, the main fins are vertically arranged with the auxiliary fins, the widths of the plurality of auxiliary fins are sequentially increased from the root of the main fins outwards, the thickness of the auxiliary fins is smaller than that of the main fins, and the outer ends of the main fins are in contact with the inner wall of the heat exchange coil body.
As a preferred method of producing a heat exchange coil having a heat conducting profile with secondary fins, the following is adopted:
firstly, extruding and molding a through long section bar which is matched with the section shape of the fin group by adopting a die, and additionally producing a through long sleeve which is consistent with the main caliber of the heat exchange coil pipe;
twisting the through long section bar into a heat conduction section bar with auxiliary fins, and arranging the heat conduction section bar in the through long sleeve to form a straight pipe section;
and thirdly, connecting the straight pipe section and the bent pipe section to form the heat exchange coil with the heat conduction profile with the auxiliary fins.
Preferably, the second step adopts a torsion stretching device for operation.
The torsion pushing and stretching device comprises a push rod which is transversely arranged leftwards, the push rod is arranged in a push rod sliding groove which is transversely arranged, a push rod gear strip which is arranged along the length direction of the push rod is arranged at the top of the push rod, a push rod motor is arranged above the push rod, a push rod motor gear is arranged at the output end of the push rod motor, and the push rod motor gear is mutually matched with the push rod gear strip;
the left side of the push rod is provided with a transverse profile outer sleeve, the profile outer sleeve comprises a profile outer sleeve base, a profile outer sleeve bottom semicircular tube is fixedly arranged on the profile outer sleeve base, an openable profile outer sleeve top semicircular tube is arranged on the profile outer sleeve bottom semicircular tube, and the profile outer sleeve bottom semicircular tube is fixedly connected with the profile outer sleeve top semicircular tube through a semicircular tube fixing pin;
the left side of the profile outer sleeve is provided with a profile sleeve die, the outer part of the profile sleeve die is provided with an electromagnetic brake, the electromagnetic brake can be used for limiting the rotation of the profile sleeve die, the profile sleeve die comprises an annular profile sleeve die sleeve and an inner profile sleeve die core, a die core cavity is arranged in the profile sleeve die core and is used for allowing a heat conduction profile to transversely pass through, and the shape of the die core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group;
a cutting gap is reserved between the profile sleeve die and the profile outer sleeve, a cutting motor piece is arranged in the cutting gap, the cutting motor piece is fixed on the output end of the cutting motor, and the cutting motor is arranged on a height lifting device;
the left side of the profile gear sleeve die is provided with a profile gear sleeve die, a torsion gap is formed between the profile gear sleeve die and the profile gear sleeve die, the profile gear sleeve die comprises an annular profile gear sleeve die sleeve and an internal profile gear sleeve die core, a circle of external gear is arranged outside the profile gear sleeve die sleeve, the profile gear sleeve die core is the same as the profile sleeve die core in shape and has the same die core cavity, the channel straightness of the die core cavity is consistent, a rotary motor is arranged below the profile gear sleeve die, the output end of the rotary motor is connected with a rotary driving gear through a transmission, and the rotary driving gear is meshed with the external gear; the rotating motor can drive the profile gear sleeve die to rotate through action;
the left side of the section bar sleeve mold is provided with a sleeve rotating seat, the sleeve rotating seat comprises a fixed support, the right side of the fixed support is provided with a sleeve rotating fixed support, the sleeve rotating fixed support is connected with a sleeve rotating movable clamping mold through a bearing, the right end of the sleeve rotating movable clamping mold is provided with a bayonet matched with the inner diameter of a through length sleeve, and the distance between the sleeve rotating movable clamping mold and the section bar sleeve mold is equal to the length of the through length sleeve to be installed;
preferably, the specific working steps of the torsion jacking device are as follows:
step one, feeding
Opening a semicircular tube at the top of the profile jacket, putting a through long profile into the semicircular tube, closing the semicircular tube at the top of the profile jacket, locking a semicircular tube fixing pin, placing a through long sleeve on a sleeve rotating seat, fixing the left end of the through long sleeve on a sleeve rotating movable clamping die, and enabling the right end of the through long sleeve to be close to the left side of the profile gear sleeve die;
step two, first jacking and extending
Starting a push rod motor, and pushing the push rod to move leftwards along a push rod sliding groove to push the through long section bar in the section bar outer sleeve to enter the section bar sleeve die and the section bar gear sleeve die, wherein the solid part of the through long section bar passes through the die core cavities in the section bar sleeve die core and the section bar gear sleeve die core, and pushing by the push rod motor enables the push rod to push the length of the through long section bar in a cutting gap to be equal to the set process length or the length of a fin group;
step three, cutting
The push rod motor stops acting, the cutting motor is started to cut the main fins and the auxiliary fins of the through long section bar, the cutting motor descends, meanwhile, the rotary motor is started to enable the section bar gear sleeve die to rotate for one circle, at the moment, the electromagnetic brake loosens the section bar sleeve die, and accordingly the section bar sleeve die also rotates for one circle along with the section bar gear sleeve die, the through long section bar is cut for one circle until only the core rod is left to be uncut, and a fin group gap is formed at the cut part;
step four, second jacking
After the cutting is finished, the push rod motor continues to act, and the push rod continues to push the through long section bar leftwards until a fin group gap formed on the through long section bar in the previous step is positioned at a torsion gap between the section bar sleeve die and the section bar gear sleeve die;
step five, twisting
The push rod motor stops acting, the electromagnetic brake holds the profile sleeve die and limits the rotation of the profile sleeve die, the rotary motor is started to enable the profile gear sleeve die to rotate forty-five degrees or ninety degrees, the through long profile forms torsion at the fin group gaps, and the fin group at the left side of the fin group gaps and the uncut through long profile at the right side of the fin group gaps are axially staggered by forty-five degrees or ninety degrees;
repeating the steps two to five to finish the cutting of gaps of the multi-section fin groups and the torsion between the adjacent fin groups, enabling the section which is jacked to the left side of the section gear sleeve die and is subjected to cutting torsion to enter the through long sleeve until the whole through long section is subjected to cutting torsion and enters the through long sleeve, and performing spot welding on the heat-conducting section with the auxiliary fins and the through long sleeve to form a straight pipe section after blanking.
Compared with the prior art, the invention has the beneficial effects that:
1. the heat conduction profile in the straight pipe section is provided with the main fins, and the main fins are provided with the auxiliary fins, so that the heat exchange area of fluid in the pipe is increased, and the fluid generates turbulence when passing through the auxiliary fins in a flowing state, so that the liquid mucous membrane which prevents heat conduction on the inner pipe wall can be continuously broken.
2. The first fin groups and the second fin groups are staggered on the core rod in the straight pipe section along the length direction of the core rod, so that fluid flowing from the front can be continuously split, heat conduction of the fluid is more sufficient and uniform, the flow direction of the fluid in the pipe can be changed, the blocking of heat conduction on the mucous membrane of the inner pipe wall is facilitated to be broken, and the fluid in the heat exchange coil can be thermally conducted to the heat exchange coil body through the heat conduction profile arranged in the pipe with excellent heat conduction, so that the heat exchange quantity and the heat exchange speed are greatly accelerated.
Drawings
Fig. 1 is a schematic view of a heat exchange coil having a heat transfer profile with secondary fins.
Fig. 2 is a schematic illustration of a straight tube section of a heat exchange coil body in semi-section.
Fig. 3 is a schematic view of the heat conductive profile of fig. 2.
Fig. 4 is a cross-sectional view of a single-group fin group of example 1.
Fig. 5 is a cross-sectional view of two adjacent fin groups of example 1.
Fig. 6 is a cross-sectional view of the straight pipe section of example 1.
Fig. 7 is a cross-sectional view of a single-group fin group of example 2.
Fig. 8 is a cross-sectional view of two adjacent fin groups of example 2.
Fig. 9 is a cross-sectional view of the straight pipe section of example 2.
Fig. 10 is a schematic view of a twist top extension device.
Fig. 11 is a schematic view of a profile sleeve die.
Fig. 12 is a schematic view of a profile gear sleeve die.
Fig. 13 is a schematic view of a sleeve rotating seat.
Fig. 14 is a schematic view of a heat conductive profile of example 3.
Wherein:
heat exchange coil 8 with heat conducting profile with auxiliary fins, heat exchange coil body 800, straight tube section 800.1, bent tube section 800.2, heat conducting profile 801, core rod 801.1, primary fins 801.2, auxiliary fins 801.3
The torque jack 900, push rod 901, push rod gear 901.1, push rod sliding groove 901.2, electromagnetic brake 902, push rod motor 903, push rod motor gear 903.1, profile outer sleeve 904, profile outer sleeve base 904.1, profile outer sleeve bottom half tube 904.2, profile outer sleeve top half tube 904.3, half tube securing pin 904.4, profile sleeve 905, profile sleeve die 905.1, profile sleeve die core 905.2, cutting motor 906, cutting motor blade 906.1, height lifter 906.2, profile gear sleeve 907, profile gear sleeve die sleeve 907.1, profile gear sleeve die core 907.2, outer gear 907.3, rotary motor 907.4, transmission 907.5, rotary drive gear 907.6, sleeve rotational mount 908, fixed mount 908.1, sleeve rotary mount 908.2, bearing 908.3, sleeve rotary movable clamp 908.4, through sleeve 909, through length profile 910.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the drawings in the specification, the heat exchange coil 8 with the heat conduction profile with the auxiliary fins comprises a heat exchange coil main body 800, wherein the heat exchange coil main body 800 comprises a straight pipe section 800.1 and a bent pipe section 800.2, the heat conduction profile 801 with the auxiliary fins is arranged in the straight pipe section of the heat exchange coil main body 800, the heat conduction profile 801 with the auxiliary fins comprises round core rods 801.1 arranged along the direction of the heat exchange coil main body 800, main fins 801.2 are arranged outside the core rods 801.1, and auxiliary fins 801.3 are arranged outside the main fins.
Preferably, the first fin groups and the second fin groups are staggered on the mandrel 801.1 along the length direction, the lengths of the first fin groups and the second fin groups are equal, a fin group gap is formed between the first fin groups and the second fin groups, ninety degrees of dislocation angle is formed between the first fin groups and the second fin groups, and the first fin groups and the second fin groups have the same structure except ninety degrees of dislocation along the axial direction of the mandrel 801.1. The first fin group and the second fin group are collectively called a fin group, the fin group comprises main fins 801.2 which are uniformly and divergently arranged along the center of a mandrel 801.1, a plurality of auxiliary fins 801.3 symmetrically extend out of the main fins 801.2 towards two sides of the main fins, the main fins 801.2 are vertically arranged with the auxiliary fins 801.3, the widths of the plurality of auxiliary fins 801.3 are sequentially increased from the root of the main fins 801.2 outwards, and the thickness of the auxiliary fins 801.3 is smaller than that of the main fins 801.2. The outer ends of the primary fins 801.2 are in contact with the inner wall of the heat exchange coil body 800.
Two primary fins 801.2 of the fin group on the heat conductive profile 801 with secondary fins in example 1, fig. 4 and fig. 5, three secondary fins on each primary fin 801.2;
the heat conductive profile 801 with secondary fins in example 2, fig. 6 and fig. 7 has four primary fins 801.2 of the fin group and five secondary fins on each primary fin 801.2.
In example 3 and fig. 14, there are four primary fins 801.2 of the fin group on the heat conductive profile 801 with secondary fins, three secondary fins on each primary fin 801.2, and a plurality of holes, preferably three holes, are further provided on the primary fin 801.2 of each fin group.
The production method of the heat exchange coil pipe with the heat conduction profile with the auxiliary fins comprises the following steps:
firstly, extruding and molding a through long section bar 910 which is matched with the section shape of the fin group by adopting a die, and additionally producing a through long sleeve 909 which is matched with the main caliber of the heat exchange coil;
twisting the through long section bar into a heat conduction section bar with auxiliary fins, and arranging the heat conduction section bar in the through long sleeve to form a straight pipe section;
and thirdly, connecting the straight pipe section and the bent pipe section to form the heat exchange coil with the heat conduction profile with the auxiliary fins.
And in the second step, the torsion stretching device 900 is adopted for operation.
The torsion pushing device 900 includes a push rod 901 disposed laterally and leftward, the push rod 901 is disposed in a push rod sliding groove 901.2 disposed laterally, a push rod gear 901.1 disposed along a length direction of the push rod 901 is disposed at a top of the push rod 901, a push rod motor 903 is disposed above the push rod 901, a push rod motor gear 903.1 is disposed at an output end of the push rod motor 903, and the push rod motor gear 903.1 is matched with the push rod gear 901.1, so that a forward rotation and a reverse rotation of the push rod motor 903 can realize a left-right lateral movement of the push rod 901;
a profile outer sleeve 904 which is transversely arranged is arranged at the left side of the push rod 901, the profile outer sleeve 904 comprises a profile outer sleeve base 904.1, a profile outer sleeve bottom semicircular tube 904.2 is fixedly arranged on the profile outer sleeve base 904.1, an openable profile outer sleeve top semicircular tube 904.3 is arranged on a profile outer sleeve bottom semicircular tube 904.2, and a profile outer sleeve bottom semicircular tube 904.2 is fixedly connected with a profile outer sleeve top semicircular tube 904.3 through a semicircular tube fixing pin 904.4;
the left side of the profile outer sleeve 904 is provided with a profile sleeve mold 905, the outside of the profile sleeve mold 905 is provided with an electromagnetic brake 902, the electromagnetic brake 902 can be used for limiting the rotation of the profile sleeve mold 905, the profile sleeve mold 905 comprises an annular profile sleeve mold sleeve 905.1 and an internal profile sleeve mold core 905.2, the profile sleeve mold sleeve 905.1 and the profile sleeve mold core 905.2 can be of an integrated structure, a mold core cavity is formed in the profile sleeve mold core 905.2 and is used for transversely passing through a heat conducting profile, the shape of the mold core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group, for example, the mold core cavity matched with the embodiment 1 is provided with four channels for passing through a main fin, for example, the mold core cavity matched with the embodiment 2 is provided with eight channels for passing through a main fin;
a cutting gap is reserved between the profile sleeve mold 905 and the profile outer sleeve 904, a cutting motor piece 906.1 is arranged in the cutting gap, the cutting motor piece 906.1 is fixed on the output end of the cutting motor 906, and the cutting motor 906 is arranged on a height lifting device 906.2;
the left side of the profile sleeve mold 905 is provided with a profile gear sleeve mold 907, a torsion gap is formed between the profile sleeve mold 905 and the profile gear sleeve mold 907, the profile gear sleeve mold 907 comprises an annular profile gear sleeve mold sleeve 907.1 and an inner profile gear sleeve mold core 907.2, a circle of external gear 907.3 is arranged outside the profile gear sleeve mold sleeve 907.1, the profile gear sleeve mold sleeve 907.1, the profile gear sleeve mold core 907.2 and the external gear 907.3 can be of an integrated structure, the profile gear sleeve mold core 907.2 and the profile sleeve mold core 905.2 have the same mold core cavity, the channel straightness of the mold core cavity is consistent, a rotary motor 907.4 is arranged below the profile gear sleeve mold 907, the output end of the rotary motor 907.4 is connected with a rotary driving gear 907.6 through a transmission 907.5, and the rotary driving gear 907.6 and the external gear 907.3 are meshed with each other; the action of the rotary motor 907.4 can drive the profile gear sleeve mold 907 to rotate;
the left side of section bar cover die 905 is provided with a sleeve pipe rotation seat 908, sleeve pipe rotation seat 908 includes fixed bolster 908.1, be connected with the rotatory movable clamp die 908.3 of sleeve pipe on the fixed bolster 908.1 through bearing 908.2, the right-hand member of the rotatory movable clamp die 908.3 of sleeve pipe is provided with the bayonet socket with logical long sleeve pipe 909 internal diameter assorted, and the distance between the rotatory movable clamp die 908.3 of sleeve pipe and the section bar cover die 905 equals the length of the logical long sleeve pipe that waits to install.
The specific working steps of the torsion stretching device 900 are as follows:
step one, feeding
Opening a semicircular tube 904.3 at the top of the profile jacket, putting a through long profile, closing the semicircular tube 904.3 at the top of the profile jacket, locking a semicircular tube fixing pin 904.4, placing a through long sleeve on a sleeve rotating seat 908, fixing the left end of the through long sleeve on a sleeve rotating movable clamping die 908.4, and enabling the right end of the through long sleeve to be close to the left side of a profile gear sleeve die 907;
step two, first jacking and extending
Starting a push rod motor 903, and moving the push rod 901 leftwards along a push rod sliding groove 901.2 to push the through long section bar in the section bar outer sleeve 904 to enter a section bar sleeve die 905 and a section bar gear sleeve die 907, wherein the solid part of the through long section bar passes through die core cavities in a section bar sleeve die core 905.2 and a section bar gear sleeve die core 907.2, and pushing of the push rod motor 903 enables the push rod 901 to push the length of the through long section bar in a cutting gap to be equal to a set process length or equal to the length of a fin group;
step three, cutting
The push rod motor 903 stops acting, the cutting motor 906 is started to cut the main fins and the auxiliary fins of the through-length profile, the cutting motor 906 descends, meanwhile, the rotating motor 907.4 is started to enable the profile gear sleeve mold 907 to rotate for one circle, at the moment, the electromagnetic brake 902 releases the profile sleeve mold 905, so that the profile sleeve mold 905 also rotates for one circle along with the profile gear sleeve mold 907, the through-length profile is cut for one circle until only the core rod 801.1 is left to be uncut, and a fin group gap is formed at the cut part;
step four, second jacking
After the cutting is finished, the push rod motor 903 continues to act, and the push rod 901 continues to push the through long section bar leftwards until the fin group gap formed on the through long section bar in the previous step is positioned at the torsion gap between the section bar sleeve mold 905 and the section bar gear sleeve mold 907;
step five, twisting
The push rod motor 903 stops acting, the electromagnetic brake 902 holds the profile sleeve mold 905 and limits the rotation of the profile sleeve mold 905, the rotary motor 907.4 is started to enable the profile gear sleeve mold 907 to rotate forty-five degrees or ninety degrees, the through long profile forms torsion at the fin group gaps of the through long profile, and the fin groups on the left side of the fin group gaps are axially staggered with the uncut through long profile on the right side of the fin group gaps by forty-five degrees or ninety degrees; the torsion angle described above may be other angles as the case may be.
Repeating the steps two to five to finish the cutting of gaps of the multi-section fin groups and the torsion between the adjacent fin groups, enabling the section which is jacked to the left side of the section gear sleeve mold 907 and is subjected to cutting torsion to enter the through long sleeve until the whole through long section is subjected to cutting torsion and enters the through long sleeve, and spot welding the heat-conducting section 801 with the auxiliary fins and the through long sleeve to form a straight pipe section after blanking.
The foregoing is merely a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the invention.
Claims (1)
1. The production method of the heat exchange coil pipe with the heat conduction section bar with the auxiliary fins is characterized in that the product produced by adopting the production method has the following structure: the heat exchange tube comprises a heat exchange tube body, wherein the heat exchange tube body comprises a straight tube section and a bent tube section, a heat conduction section with auxiliary fins is arranged in the straight tube section of the heat exchange tube body, the heat conduction section with the auxiliary fins comprises a round core rod arranged along the direction of the heat exchange tube body, a main fin is arranged outside the core rod, and an auxiliary fin is arranged outside the main fin;
the production method comprises the following specific steps:
firstly, extruding and molding a through long section bar which is matched with the section shape of the fin group by adopting a die, and additionally producing a through long sleeve which is consistent with the main caliber of the heat exchange coil pipe;
twisting the through long section bar into a heat conduction section bar with auxiliary fins, and arranging the heat conduction section bar in the through long sleeve to form a straight pipe section;
step three, connecting the straight pipe section and the bent pipe section to form a heat exchange coil pipe with a heat conduction section with auxiliary fins;
step two, adopting a torsion jacking device to perform operation;
the torsion pushing and stretching device comprises a push rod which is transversely arranged leftwards, the push rod is arranged in a push rod sliding groove which is transversely arranged, a push rod gear strip which is arranged along the length direction of the push rod is arranged at the top of the push rod, a push rod motor is arranged above the push rod, a push rod motor gear is arranged at the output end of the push rod motor, and the push rod motor gear is mutually matched with the push rod gear strip;
the left side of the push rod is provided with a transverse profile outer sleeve, the profile outer sleeve comprises a profile outer sleeve base, a profile outer sleeve bottom semicircular tube is fixedly arranged on the profile outer sleeve base, an openable profile outer sleeve top semicircular tube is arranged on the profile outer sleeve bottom semicircular tube, and the profile outer sleeve bottom semicircular tube is fixedly connected with the profile outer sleeve top semicircular tube through a semicircular tube fixing pin;
the left side of the profile outer sleeve is provided with a profile sleeve die, the outer part of the profile sleeve die is provided with an electromagnetic brake, the electromagnetic brake can be used for limiting the rotation of the profile sleeve die, the profile sleeve die comprises an annular profile sleeve die sleeve and an inner profile sleeve die core, a die core cavity is arranged in the profile sleeve die core and is used for allowing a heat conduction profile to transversely pass through, and the shape of the die core cavity is matched with the solid shape formed by compounding the first fin group and the second fin group;
a cutting gap is reserved between the profile sleeve die and the profile outer sleeve, a cutting motor piece is arranged in the cutting gap, the cutting motor piece is fixed on the output end of the cutting motor, and the cutting motor is arranged on a height lifting device;
the left side of the profile gear sleeve die is provided with a profile gear sleeve die, a torsion gap is formed between the profile gear sleeve die and the profile gear sleeve die, the profile gear sleeve die comprises an annular profile gear sleeve die sleeve and an internal profile gear sleeve die core, a circle of external gear is arranged outside the profile gear sleeve die sleeve, the profile gear sleeve die core is the same as the profile sleeve die core in shape and has the same die core cavity, the channel straightness of the die core cavity is consistent, a rotary motor is arranged below the profile gear sleeve die, the output end of the rotary motor is connected with a rotary driving gear through a transmission, and the rotary driving gear is meshed with the external gear; the rotating motor can drive the profile gear sleeve die to rotate through action;
the left side of the section bar sleeve mold is provided with a sleeve rotating seat, the sleeve rotating seat comprises a fixed support, the right side of the fixed support is provided with a sleeve rotating fixed support, the sleeve rotating fixed support is connected with a sleeve rotating movable clamping mold through a bearing, the right end of the sleeve rotating movable clamping mold is provided with a bayonet matched with the inner diameter of a through length sleeve, and the distance between the sleeve rotating movable clamping mold and the section bar sleeve mold is equal to the length of the through length sleeve to be installed;
the specific working steps of the torsion jacking device are as follows:
step one, feeding
Opening a semicircular tube at the top of the profile jacket, putting a through long profile into the semicircular tube, closing the semicircular tube at the top of the profile jacket, locking a semicircular tube fixing pin, placing a through long sleeve on a sleeve rotating seat, fixing the left end of the through long sleeve on a sleeve rotating movable clamping die, and enabling the right end of the through long sleeve to be close to the left side of the profile gear sleeve die;
step two, first jacking and extending
Starting a push rod motor, and pushing the push rod to move leftwards along a push rod sliding groove to push the through long section bar in the section bar outer sleeve to enter the section bar sleeve die and the section bar gear sleeve die, wherein the solid part of the through long section bar passes through the die core cavities in the section bar sleeve die core and the section bar gear sleeve die core, and pushing by the push rod motor enables the push rod to push the length of the through long section bar in a cutting gap to be equal to the set process length or the length of a fin group;
step three, cutting
The push rod motor stops acting, the cutting motor is started to cut the main fins and the auxiliary fins of the through long section bar, the cutting motor descends, meanwhile, the rotary motor is started to enable the section bar gear sleeve die to rotate for one circle, at the moment, the electromagnetic brake loosens the section bar sleeve die, and accordingly the section bar sleeve die also rotates for one circle along with the section bar gear sleeve die, the through long section bar is cut for one circle until only the core rod is left to be uncut, and a fin group gap is formed at the cut part;
step four, second jacking
After the cutting is finished, the push rod motor continues to act, and the push rod continues to push the through long section bar leftwards until a fin group gap formed on the through long section bar in the previous step is positioned at a torsion gap between the section bar sleeve die and the section bar gear sleeve die;
step five, twisting
The push rod motor stops acting, the electromagnetic brake holds the profile sleeve die and limits the rotation of the profile sleeve die, the rotary motor is started to enable the profile gear sleeve die to rotate ninety degrees, the through long profile forms torsion at the fin group gaps, and the fin groups on the left side of the fin group gaps are axially staggered ninety degrees with the uncut through long profile on the right side of the fin group gaps;
repeating the steps two to five to finish the cutting of gaps of the multi-section fin groups and the torsion between the adjacent fin groups, enabling the section which is jacked to the left side of the section gear sleeve die and is subjected to cutting torsion to enter the through long sleeve until the whole through long section is subjected to cutting torsion and enters the through long sleeve, and spot welding the heat-conducting section with the auxiliary fins and the through long sleeve to form a straight pipe section after blanking;
the first fin groups and the second fin groups are staggered on the core rod along the length direction of the core rod, the lengths of the first fin groups and the second fin groups are equal, a fin group gap is formed between the first fin groups and the second fin groups, ninety-degree dislocation angles are formed between the first fin groups and the second fin groups, and the first fin groups and the second fin groups have the same structure except ninety-degrees dislocation angles along the axial direction of the core rod;
the main fins of the product produced by the production method are uniformly and divergently arranged along the center of the core rod, a plurality of auxiliary fins symmetrically extend out of the main fins towards two sides of the main fins, the main fins are vertically arranged with the auxiliary fins, the widths of the plurality of auxiliary fins are sequentially increased outwards from the root of the main fins, the thickness of the auxiliary fins is smaller than that of the main fins, and the outer ends of the main fins are in contact with the inner wall of the heat exchange coil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111665562.4A CN114353577B (en) | 2021-12-31 | 2021-12-31 | Production method of heat exchange coil pipe with heat conduction profile with auxiliary fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110793016A (en) * | 2019-10-25 | 2020-02-14 | 西安交通大学 | Axially-through elliptical finned tube |
| CN111322899A (en) * | 2020-03-05 | 2020-06-23 | 香港環能有限公司 | External fin heat exchange tube with spiral inner core and manufacturing method thereof |
| CN111947499A (en) * | 2020-08-26 | 2020-11-17 | 珠海格力电器股份有限公司 | Super-cooled pipe and air conditioning unit |
| CN212747459U (en) * | 2020-06-15 | 2021-03-19 | 无锡麦克威装备科技有限公司 | High-efficiency energy-saving laser welding spiral finned tube |
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| US3294162A (en) * | 1963-12-23 | 1966-12-27 | Reynolds Metals Co | Heat exchanger construction and method for making the same |
| JP2007003115A (en) * | 2005-06-24 | 2007-01-11 | Mitsubishi Electric Corp | Heat exchanger and manufacturing method of the same |
| CN201772801U (en) * | 2010-08-03 | 2011-03-23 | 广东美的电器股份有限公司 | Tube fin heat exchanger |
| CN103629952A (en) * | 2012-08-29 | 2014-03-12 | 洛阳麦达斯铝业有限公司 | Tubular heat exchanger, method for manufacturing tubular heat exchanger and heat exchange equipment |
| CN107891275A (en) * | 2017-12-06 | 2018-04-10 | 江阴戴勒姆动力设备有限公司 | A kind of H types fin produces component |
| CN110793016A (en) * | 2019-10-25 | 2020-02-14 | 西安交通大学 | Axially-through elliptical finned tube |
| CN111322899A (en) * | 2020-03-05 | 2020-06-23 | 香港環能有限公司 | External fin heat exchange tube with spiral inner core and manufacturing method thereof |
| CN212747459U (en) * | 2020-06-15 | 2021-03-19 | 无锡麦克威装备科技有限公司 | High-efficiency energy-saving laser welding spiral finned tube |
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| CN114353577A (en) | 2022-04-15 |
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