CN207515597U - A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser - Google Patents
A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser Download PDFInfo
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- CN207515597U CN207515597U CN201721400414.9U CN201721400414U CN207515597U CN 207515597 U CN207515597 U CN 207515597U CN 201721400414 U CN201721400414 U CN 201721400414U CN 207515597 U CN207515597 U CN 207515597U
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- 230000008020 evaporation Effects 0.000 claims abstract description 48
- 239000011159 matrix material Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 8
- 238000010025 steaming Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000003416 augmentation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
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- 238000009833 condensation Methods 0.000 description 10
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- 229910052751 metal Inorganic materials 0.000 description 5
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- 230000000694 effects Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
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- 238000010438 heat treatment Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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Abstract
The utility model is related to a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser, including fin, geosynclinal convex tooth, palace lattice fin, ladder fin, triangle apical tooth outside pipe matrix, inner spiral sawtoothed fins piece, spiral sawtoothed.Palace lattice fin is located at the both sides of the outer fin of spiral sawtoothed, and the both sides palace lattice fin of the outer fin of same spiral sawtoothed is interspersed；Ladder fin is located at the both sides of the outer fin of spiral sawtoothed and on the outside of the lattice fin of palace, and two side steps fins of the outer fin of same spiral sawtoothed are interspersed, and the ladder fin of homonymy is interspersed with palace lattice fin；The inside of palace lattice fin, spiral sawtoothed surround evaporation cavity outside between fin, pipe matrix, geosynclinal convex tooth, the outside of palace lattice fin, spiral sawtoothed surround reinforcing chamber, connected between evaporation cavity and reinforcing chamber by notch outside between fin, ladder fin.The utility model can improve evaporation and condense the heat transfer efficiency of two kinds of operating modes, belong to augmentation of heat transfer Manifold technology field.
Description
Technical field
The utility model is related to the dual-purpose ladder palace lattice inside and outside fins of augmentation of heat transfer pipe more particularly to a kind of evaporative condenser
Pipe.
Background technology
With rapid development of economy, energy shortage problem is more severe.Heat transfer enhancement technology is as important energy saving hand
Section has great importance for solving energy problem, has been obtained extensively in fields such as oil, chemical industry, electric power, nuclear energy, refrigeration
Application.Heat exchanger tube is the core heat transfer element of heat transfer enhancement technology, is primarily characterized in that the surfaces externally and internally in pipe processes
Certain surface texture, to extend heat-transfer area or improve heat transfer coefficient, so as to improve heat transfer efficiency.
And in field of Refrigeration and Air-conditioning, it can realize that refrigeration can also realize that the heat pump unit of heating enjoys great popularity.With industry
The needs of development, the heat pump unit of full-liquid type is using more and more, and this requires heat exchanger tube will have in terms of evaporation and condensation
Higher performance.Heat transfer enhancement technology is mainly using external finned tube as heat exchanger tube at present, but these external finned tubes can only be one-sided
Enhanced water evaporation or condensation, evaporation tube strengthen the effect of condensation far below condenser pipe, the effect of condenser pipe enhanced water evaporation is far below
For evaporation tube this is because evaporation and condensation are different to the structural requirement of enhanced heat transfer surfaces, evaporation tube requires have more boilings
Core, and condenser pipe requires to make liquid film as thin as possible.So heat pump water chiller-heater unit, either using evaporation tube or condenser pipe
As heat exchanger tube, the performance under a certain operating mode can all be influenced.
Utility model content
For the technical problems in the prior art, the purpose of this utility model is：There is provided a kind of can strengthen steaming simultaneously
The volatility ladder palace lattice internal and external finned tubes dual-purpose with the evaporative condenser of condensation performance.The ladder palace lattice internal and external finned tubes can be applied
It among evaporator and condenser, is used as dual-purpose pipe, the development for heat pump unit provides crucial condition.
In order to achieve the above object, the utility model adopts the following technical solution：
The dual-purpose ladder palace lattice internal and external finned tubes of a kind of evaporative condenser, including pipe matrix, inner spiral sawtoothed fins piece, spiral saw
Tooth outer fin, geosynclinal convex tooth, palace lattice fin, ladder fin, triangle apical tooth；Inner spiral sawtoothed fins piece pipe matrix inner wall,
The outer fin of spiral sawtoothed is in the outer wall of pipe matrix, slot between being formed between the outer fin of two adjacent spiral sawtootheds on axial direction,
Geosynclinal convex tooth position in pipe matrix outer wall and between being located in slot, triangle apical tooth is located at the outside top of the outer fin of spiral sawtoothed；Palace
Lattice fin is located at the both sides of the outer fin of spiral sawtoothed, and the both sides palace lattice fin of the outer fin of same spiral sawtoothed is interspersed, so as to
The sides adjacent of fin outside adjoining spiral sawtooth forms the notch being interspersed between the lattice fin of palace；Ladder fin is located at spiral
Both sides of the outer fin of sawtooth and on the outside of the lattice fin of palace, two side steps fins of the outer fin of same spiral sawtoothed are interspersed,
And the ladder fin of homonymy is interspersed with palace lattice fin, the sides adjacent of the outer fin of adjoining spiral sawtooth, the axial direction of ladder fin
There is gap on direction；The inside of palace lattice fin, spiral sawtoothed surround evaporation cavity, palace between fin, pipe matrix, geosynclinal convex tooth outside
The outside of lattice fin, spiral sawtoothed surround reinforcing chamber outside between fin, ladder fin, pass through notch between evaporation cavity and reinforcing chamber
Connection.
Between geosynclinal convex tooth along the centreline space of slot every being uniformly distributed, geosynclinal convex tooth is rectangular teeth or stepped tooth, geosynclinal convex
The height of tooth is 0.05-0.20mm；The quantity of geosynclinal convex tooth is 50-150 between on each circumference.
Class triangle fin of the palace lattice fin for the fin side wall outside spiral sawtoothed, the upper top surface of palace lattice fin are flat for one
Face；The sides adjacent of fin outside adjoining spiral sawtooth, the axial length of sides adjacent palace lattice fin is added be equal to herein between slot width
Degree；On each circumference, the quantity of the palace lattice fin of the outer fin side of spiral sawtoothed is 80-150.
The cross sectional shape of evaporation cavity is class regular pentagon；Notch between each in slot is the rectangular opening of two between-line spacings distribution,
The axial length of rectangular opening for well width between herein 1/3~1/2.
Class trapezoid platform with a right ang fin of the ladder fin for the fin side wall outside spiral sawtoothed, the upper top surface of ladder fin
For a plane, side is arcwall face；The sides adjacent of fin outside adjoining spiral sawtooth, the axial length phase of adjacent side steps fin
Add the width 1/2~2/3 of slot between being equal to herein；On each circumference, the quantity of the ladder fin of the outer fin side of spiral sawtoothed
It is equal with the quantity of palace lattice fin, it is 80-150.
The upper top surface of ladder fin is higher 0.1-0.2mm than the upper top surface of palace lattice fin.
The head clearance distribution of triangle apical tooth fin outside spiral sawtoothed, the depth of triangle apical tooth is 0.1-0.4mm；
On each circumference, the quantity of triangle apical tooth is 50-150.
Inner spiral sawtoothed fins piece is bucking ladder sawtooth of the inner wall of pipe matrix along left or right rotation hand of spiral Disjunct distribution；
The head number of screw thread is 2~32, and screw thread groove depth is 0.20~0.40mm, the bottom surface area of bucking ladder sawtooth for 0.04~
0.16mm2, a height of 0.15~0.35mm.
Between geosynclinal convex tooth along the centreline space of slot every being uniformly distributed；Palace lattice fin is the fin side outside spiral sawtoothed
The class triangle fin of wall, the upper top surface of palace lattice fin is a plane；The cross sectional shape of evaporation cavity is class regular pentagon, it is each between slot
In notch be two between-line spacings distribution rectangular opening；Class right-angled trapezium of the ladder fin for the fin side wall outside spiral sawtoothed
Platform fin, the upper top surface of ladder fin is a plane, and side is arcwall face；The top of triangle apical tooth fin outside spiral sawtoothed
It is spaced apart；Inner spiral sawtoothed fins piece is trapezoidal bench saw of the inner wall of pipe matrix along left or right rotation hand of spiral Disjunct distribution
Tooth.
Palace lattice fin, ladder fin is are made with cutter outside-in extrusion molding.
Generally speaking, the utility model has the following advantages that：
1. geosynclinal convex tooth increases the contact area of pipe matrix and working medium, the rough surface with time geosynclinal convex tooth is evaporated
Journey provides more nucleateboiling cores, can promote the progress of evaporation process.
2. the confining bed of palace lattice fin and ladder fin composition, is divided into class regular pentagon by slot between fin outside spiral sawtoothed
Evaporation cavity and upper reinforcing chamber, evaporation cavity be close to pipe matrix, the larger degree of superheat, while the class pentagon of evaporation cavity can be formed
Shape is there are more nucleateboiling core, so as to significantly enhance volatility；And the rectangular opening at the top of evaporation cavity
Liquid working substance can be promoted to enter evaporation cavity, while be conducive to the gas working medium that evaporation generates and leave evaporation cavity.
Strengthening chamber has larger heating surface, and triangle apical tooth can make condensate film by surface tension effects and abundant
Drawout, well promote condensate film be thinned, heat transmission resistance is reduced, so as to enhance condensation performance.
3. the inner spiral sawtoothed fins piece of pipe base inner surface not only provides larger heat transfer area, and can promote intraductal working medium
It generates and disturbs, the convection current in reinforced pipe, and then enhanced water evaporation and condensation performance.
4. the shape and size parameter of the utility model inside and outside fin can be according to the size of pipe matrix and the operating mode of application
It is adjusted, so as to reach preferably performance, use scope is extensive.
5. evaporation cavity can promote the progress of evaporation process, so as to enhanced water evaporation performance；Strengthen chamber, largely increase
Heat transfer area, improves heat transfer efficiency；The setting of rectangular opening in condensing condition, is conducive to the water conservancy diversion of condensate liquid, is evaporating
During operating mode, be conducive to liquid and enter evaporation cavity；Triangle apical tooth can promote being thinned for condensate film, reduce heat transfer resistance；Spiral
Sawtooth inner fin can increase intraductal heat transfer area, promote the disturbance of tube fluid, enhance heat convection.A series of this improvement
Combination, make the structure of enhanced water evaporation process can strengthen condensation process simultaneously, enable reinforcing condensation performance structure to a certain degree
Raising evaporation efficiency so that heat-transfer pipe can greatly improve simultaneously evaporation heat transfer performance and condensation performance.Applied to system
When cool equipment and heat pump unit, heat-transfer pipe can at any time switch according to equipment actual condition needs between evaporation tube and condenser pipe, and
Keep excellent heat transfer property.
Description of the drawings
Fig. 1 is a kind of structure diagram of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser.
Fig. 2 is a kind of axial sectional view of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser.
Fig. 3 is a kind of partial top view of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser.
Fig. 4 is a kind of vertical view of the triangle apical tooth of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser.
Fig. 5 is a kind of structural representation of the inner spiral sawtoothed fins piece of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser
Figure.
Fig. 6 is the structure diagram of flooded evaporator.
Fig. 7 is a kind of process schematic diagram of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser.
Wherein, 1 be pipe matrix, 2 be between geosynclinal convex tooth, 3 be palace lattice fin, 4 be ladder fin, 5 be triangle apical tooth, 6 are
Inner spiral sawtoothed fins piece, 7 be evaporation cavity, and 8 is strengthen chamber, and 9 be rectangular opening, and 10 be refrigerant inlet, and 11 be refrigerant outlet, 12
It is exported for refrigerating medium entrance, 13 for refrigerating medium, 14 be liquid-distributing plate, and 15 be tube sheet.2-1 is metal tube, and 2-2 is dextrorotation trapezoidal thread
Stem, 2-3 are left-handed trapezoidal thread stem, and 2-4 is the outer fin lipper of spiral, and 2-5 is shaping blade, and 2-6 is slot serrated knife, 2-7
To squeeze tooth cutter, 2-8 is squeezes flat cutter, and 2-9 is knurling machine, and 2-10 is adjust pad.
Specific embodiment
It is next below that the utility model is described in more detail.
The dual-purpose ladder palace lattice internal and external finned tubes of a kind of evaporative condenser, including pipe matrix, inner spiral sawtoothed fins piece, spiral saw
Tooth outer fin, geosynclinal convex tooth, palace lattice fin, ladder fin, triangle apical tooth.
Inner spiral sawtoothed fins piece pipe matrix inner wall, the outer fin of spiral sawtoothed pipe matrix outer wall, on axial direction
Slot between being formed between the outer fin of two adjacent spiral sawtootheds, geosynclinal convex tooth position in pipe matrix outer wall and between being located in slot, triangle
Shape apical tooth is located at the outside top of the outer fin of spiral sawtoothed；Palace lattice fin is located at the both sides of the outer fin of spiral sawtoothed, same spiral
The both sides palace lattice fin of the outer fin of sawtooth is interspersed, so as to the sides adjacent of the fin outside adjoining spiral sawtooth, palace lattice fin it
Between form the notch being interspersed；Ladder fin is located at the both sides of the outer fin of spiral sawtoothed and on the outside of the lattice fin of palace, same
Two side steps fins of the outer fin of spiral sawtoothed are interspersed, and the ladder fin of homonymy is interspersed with palace lattice fin, adjacent
The sides adjacent of the outer fin of spiral sawtoothed has gap on the axial direction of ladder fin；Outside the inside of palace lattice fin, spiral sawtoothed
Surround evaporation cavity between fin, pipe matrix, geosynclinal convex tooth, the outside of palace lattice fin, spiral sawtoothed are outer between fin, ladder fin
Reinforcing chamber is surrounded, is connected between evaporation cavity and reinforcing chamber by notch.
The present embodiment heat exchange tube material is copper, and outer diameter 19mm, wall thickness 1.15mm are processed on three-roll cross rolling mill
Forming, inside and outside fin structure are once-forming；The thickness of the outer fin of spiral sawtoothed is 0.15mm, a height of 1.0mm.
Between geosynclinal convex tooth be distributed in trench bottom between the outer fin of spiral sawtoothed, between the centreline space of slot every being uniformly distributed,
Shape is rectangle, and the height of geosynclinal convex tooth is 0.10mm；The quantity of geosynclinal convex tooth is 100 between on each circumference.
Class triangle fin of the palace lattice fin for the fin side wall outside spiral sawtoothed, top surface is a plane thereon；Same
Palace lattice fin at left and right sides of one slot is interspersed, the distance 0.508mm of slot between axial length addition is equal at this；Every
On a circumference, the quantity of the palace lattice fin of the outer fin one side of spiral sawtoothed is 100.
Class trapezoid platform with a right ang fin of the ladder fin for the side wall of fin outside spiral sawtoothed, on a left side for same slot
Right ladder fin is interspersed, and axial length adds up to 0.338mm；On each circumference, the side of the outer fin of spiral sawtoothed
The quantity of face ladder fin is equal with the quantity of palace lattice fin, is 100.
The upper top surface of ladder fin is higher by 0.2mm than the upper top surface of palace lattice fin；The same side of the outer fin of spiral sawtoothed
On palace lattice fin and ladder fin be interspersed.
Palace lattice fin, ladder fin composition confining bed, slot between fin outside two neighboring spiral sawtoothed is divided into
Lower two parts.The bottom surface of palace lattice fin, the bottom surface of ladder fin, geosynclinal convex tooth and the outer fin of two neighboring spiral sawtoothed are total to
With composition evaporation cavity, the progress of evaporation process can be promoted, so as to enhanced water evaporation performance；The upper top surface of palace lattice fin, ladder wing
The upper top surface of piece, triangle apical tooth collectively constitute reinforcing chamber with the outer fin of two neighboring spiral sawtoothed, largely increase
Heat transfer area, improves heat transfer efficiency.
Evaporation cavity is class regular pentagon shape, and upper part has the rectangular opening being spaced apart, and the axial length in the hole is
0.17mm shares 100 rectangular openings on one circumference, in condensing condition, is conducive to the water conservancy diversion of condensate liquid；In evaporation operating mode
When, be conducive to liquid and enter evaporation cavity.
The head clearance of the outer fin of spiral sawtoothed is distributed with the triangle apical tooth that 100 depth are 0.2mm, can promote cold
Being thinned for lime set film, reduces heat transfer resistance.
Inner spiral sawtoothed fins piece, the trapezoidal bench saw for pipe base inner surface upper edge left or right rotation hand of spiral Disjunct distribution
Tooth；The head number of screw thread is 8, and screw thread groove depth is 0.3mm, and the bottom area of bucking ladder sawtooth is 0.09mm2, it is a height of
0.25mm；Inner spiral sawtoothed fins piece can increase intraductal heat transfer area, promote the disturbance of tube fluid, enhance heat convection.
Fig. 6 is that a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser are applied in flooded evaporator.This practicality
Novel dual-purpose heat exchanger tube is mounted on by expand connection or welding on tube sheet, and refrigerant enters evaporator from refrigerant inlet
Shell-side, by liquid-distributing plate, gas refrigerant after heat absorption evaporation flows out evaporator from refrigerant outlet, the refrigerant in evaporator
It is totally submerged dual-purpose heat exchanger tube；Cold water enters from the refrigerating medium entrance of side in dual-purpose heat exchanger tube, by the cooling of tube side twice,
Evaporator is left from the refrigerating medium outlet of the same side.
The ladder palace lattice internal and external finned tubes that the evaporative condenser of the utility model is dual-purpose significantly increase heat transfer area,
The more nucleateboiling core for being conducive to evaporation process is provided, and its evaporation cavity improves the degree of superheat of evaporation, so as to carry
The high heat exchange efficiency of flooded evaporator.
A kind of forming tool of evaporative condenser two-purpose ladder palace lattice finned tube is：
Including being used to shape the rolling extrusion molding gang tool of outer fin structure, in outer surface of metal pipe in gold
Belong to pipe internal surface and shape the dextrorotation trapezoidal thread stem of inner fin structure and left-handed trapezoidal thread stem；Roll extrusion molding group
Conjunction cutter includes the outer fin lipper of the spiral axially set gradually, shaping blade, slot serrated knife, squeezes tooth cutter, squeezes and put down
Cutter and knurling machine further include the adjust pad of each knife axial direction spacing in adjustment rolling extrusion molding gang tool；Outside spiral
Fin lipper and shaping blade are to go out fin and the circular ring shape cutter of slot structure outside spiral by extrusion process, slot serrated knife be
Between the circular ring shape cutter of a geosynclinal convex tooth is processed in slot, squeeze tooth cutter and process palace in a slot two side to be molding by extrusion
The circular ring shape cutter of lattice fin squeezes flat cutter and is processed to be molding by extrusion in slot two side and on the outside of the lattice fin of palace
The circular ring shape cutter of ladder fin, circular ring shape knife of the knurling machine to process triangle apical tooth in the outside top of outer fin structure
Tool.Adjust pad is circular gasket.The quantity of the outer fin lipper of spiral is multiple, the outer fin lipper of multiple spirals and shaping blade
It is arranged in order from small to large according to outer diameter.The peripheral action face of slot serrated knife is to be interrupted equally distributed circular arc with rectangle groove
Face.It is the wheeled blade of ladder straight-tooth to squeeze tooth cutter.The acting surface for squeezing flat cutter is outer circle optical plane.Knurling machine is triangle
The wheeled blade of straight-tooth.
A kind of production method of the dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser is：
Step 1：Beginning is shaped, the outer fin lipper of six spirals is acted on outer surface of metal pipe successively, first
The outer fin lipper of spiral first squeezes out the outer fin of a lower height of spiral, until the effect of fin lipper is completed outside the 6th spiral
Afterwards, the outer fin of spiral of certain altitude is finally shaped；At the same time dextrorotation trapezoidal thread stem acts on metal pipe internal surface
On, shape thread groove structure.
Step 2：The outer fin of formed spiral, acts on, surface texture is more regular by the finishing of shaping blade.
Step 3：Metal tube by the slot serrated knife squeezing action for being interrupted equally distributed arc surface with rectangle groove,
Trench bottom extrusion molding goes out the rectangle double wedge of Disjunct distribution between the outer fin of spiral.
Step 4：It squeezes tooth cutter to act on the opposite two sides of the outer fin of adjoining spiral, ladder straight-tooth is down
It squeezes, the palace lattice fin being evenly spaced on is shaped in slot.
Step 5：The part squeezed on the opposite side of the outer fin of adjoining spiral without squeezing tooth cutter, is squeezing truncation
Under the action of knife, the ladder fin being interspersed with palace lattice fin is squeezed out；At the same time, left-handed trapezoidal thread stem acts on
On thread groove on inner surface, thread protrusion part-structure is interrupted, shapes screw thread sawtooth inner fin.
Step 6：Knurling machine is rolled outside spiral at the top of fin, so as to shape the triangle top being spaced apart
Tooth；So as to finally shape the dual-purpose internal and external finned tubes of evaporative condenser.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, the change made under other any Spirit Essences and principle without departing from the utility model are modified, are replaced
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (10)
1. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser, it is characterised in that：Including pipe matrix, inner spiral sawtoothed fins
Piece, spiral sawtoothed outer fin, geosynclinal convex tooth, palace lattice fin, ladder fin, triangle apical tooth；Inner spiral sawtoothed fins piece is in Guan Ji
The inner wall of body, the outer fin of spiral sawtoothed is in the outer wall of pipe matrix, shape between the outer fin of two adjacent spiral sawtootheds on axial direction
Into a slot, geosynclinal convex tooth position in pipe matrix outer wall and between being located in slot, triangle apical tooth is located at the outer of the outer fin of spiral sawtoothed
Side roof part；Palace lattice fin is located at the both sides of the outer fin of spiral sawtoothed, and the both sides palace lattice fin of the outer fin of same spiral sawtoothed interlocks
So as to the sides adjacent of the fin outside adjoining spiral sawtooth, the notch being interspersed is formed between the lattice fin of palace for distribution；Ladder fin
The both sides of fin and on the outside of the lattice fin of palace outside spiral sawtoothed, two side steps fins of the outer fin of same spiral sawtoothed are handed over
Mistake distribution, and the ladder fin of homonymy is interspersed with palace lattice fin, the sides adjacent of the outer fin of adjoining spiral sawtooth, ladder fin
Axial direction on have gap；The inside of palace lattice fin, spiral sawtoothed surround steaming between fin, pipe matrix, geosynclinal convex tooth outside
Chamber is sent out, the outside of palace lattice fin, spiral sawtoothed surround reinforcing chamber outside between fin, ladder fin, between evaporation cavity and reinforcing chamber
It is connected by notch.
2. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Between slot
Double wedge is along the centreline space of slot every being uniformly distributed, and geosynclinal convex tooth is rectangular teeth or stepped tooth, and the height of geosynclinal convex tooth is
0.05-0.20mm；The quantity of geosynclinal convex tooth is 50-150 between on each circumference.
3. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Gong Ge
Class triangle fin of the fin for the fin side wall outside spiral sawtoothed, the upper top surface of palace lattice fin is a plane；In adjacent spiral shell
Revolve the sides adjacent of the outer fin of sawtooth, the axial length of sides adjacent palace lattice fin is added be equal to herein between slot width；Each circumference
On, the quantity of the palace lattice fin of the outer fin side of spiral sawtoothed is 80-150.
4. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 3, it is characterised in that：Evaporation
The cross sectional shape of chamber is class regular pentagon；Rectangular opening of the notch for the distribution of two between-line spacings between each in slot, the axial direction of rectangular opening
Length for well width between herein 1/3~1/2.
5. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Ladder
Class trapezoid platform with a right ang fin of the fin for the fin side wall outside spiral sawtoothed, the upper top surface of ladder fin are a plane, side
Face is arcwall face；The sides adjacent of fin outside adjoining spiral sawtooth, the axial length of adjacent side steps fin, which is added, to be equal to herein
Between slot width 1/2~2/3；On each circumference, the quantity of ladder fin of the outer fin side of spiral sawtoothed and palace lattice fin
Quantity it is equal, be 80-150.
6. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Ladder
The upper top surface of fin is higher 0.1-0.2mm than the upper top surface of palace lattice fin.
7. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Triangle
The head clearance distribution of shape apical tooth fin outside spiral sawtoothed, the depth of triangle apical tooth is 0.1-0.4mm；In each circumference
On, the quantity of triangle apical tooth is 50-150.
8. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Spiral
Sawtooth inner fin is bucking ladder sawtooth of the inner wall of pipe matrix along left or right rotation hand of spiral Disjunct distribution；The head number of screw thread is
2~32, screw thread groove depth is 0.20~0.40mm, and the bottom surface area of bucking ladder sawtooth is 0.04~0.16mm2, it is a height of
0.15~0.35mm.
9. a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in accordance with the claim 1, it is characterised in that：Between slot
Double wedge is along the centreline space of slot every being uniformly distributed；Class triangle wing of the palace lattice fin for the fin side wall outside spiral sawtoothed
Piece, the upper top surface of palace lattice fin is a plane；The cross sectional shape of evaporation cavity is class regular pentagon, it is each between notch in slot be two
The rectangular opening of between-line spacing distribution；Class trapezoid platform with a right ang fin of the ladder fin for the fin side wall outside spiral sawtoothed, ladder
The upper top surface of fin is a plane, and side is arcwall face；The head clearance distribution of triangle apical tooth fin outside spiral sawtoothed；Spiral shell
Revolve bucking ladder sawtooth of inner wall of the sawtooth inner fin for pipe matrix along left or right rotation hand of spiral Disjunct distribution.
10. according to a kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser described in claim 9, it is characterised in that：Palace
Lattice fin, ladder fin is are made with cutter outside-in extrusion molding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400414.9U CN207515597U (en) | 2017-10-27 | 2017-10-27 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
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| CN201721400414.9U CN207515597U (en) | 2017-10-27 | 2017-10-27 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
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| CN207515597U true CN207515597U (en) | 2018-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782192A (en) * | 2017-10-27 | 2018-03-09 | 华南理工大学 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
-
2017
- 2017-10-27 CN CN201721400414.9U patent/CN207515597U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782192A (en) * | 2017-10-27 | 2018-03-09 | 华南理工大学 | A kind of dual-purpose ladder palace lattice internal and external finned tubes of evaporative condenser |
| CN107782192B (en) * | 2017-10-27 | 2023-12-01 | 华南理工大学 | Stepped grid inner and outer finned tube for evaporation and condensation |
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Granted publication date: 20180619 Effective date of abandoning: 20231201 |