CN104896971B - Spiral tube type heat exchanger with winding reducer pipe - Google Patents
Spiral tube type heat exchanger with winding reducer pipe Download PDFInfo
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- CN104896971B CN104896971B CN201510351126.8A CN201510351126A CN104896971B CN 104896971 B CN104896971 B CN 104896971B CN 201510351126 A CN201510351126 A CN 201510351126A CN 104896971 B CN104896971 B CN 104896971B
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 title claims abstract description 16
- 230000008676 import Effects 0.000 claims description 23
- 230000007704 transition Effects 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 11
- 241000237983 Trochidae Species 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 17
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A spiral tube type heat exchanger wound by adopting a reducer tube comprises a shell and a spiral tube bundle, wherein the two ends in the shell are installed on a tube plate; the shell is provided with a shell pass inlet and a shell pass outlet, one or more tube pass inlets and outlets, and the tube pass inlets and outlets adopt distributors to distribute and collect the heat exchange tubes; the spiral tube bundle is divided into a plurality of layers of concentric heat exchange tubes and wound on the core tube, each layer of heat exchange tube is spirally wound in the same direction, a separation wire is arranged between every two adjacent layers of heat exchange tubes, and the winding directions are the same or opposite. The single heat exchange tube is formed by connecting one or more tubes with different lengths, and winding tubes with different diameters are transited, fixed and connected through a pattern plate; the spiral tube type heat exchanger can realize high-efficiency heat exchange of different temperature sections under the condition of large temperature span, and has the advantages of compact structure, high heat exchange efficiency, contribution to integrated assembly of heat exchangers with different temperature areas, reduction of the volume of the heat exchanger, reduction of the number of heat exchange equipment and the like.
Description
Technical field
The present invention relates to a kind of heat exchanger, the spiral tube heat exchanger being wound around particularly to a kind of reducer pipe.
Background technology
Spiral winding tube type heat exchanger has in compact conformation, unit volume that heat transfer area is big, have certain temperature
The plurality of advantages such as degree self compensation ability, floor space are little, in cryogenic engineering, particularly mixed working fluid refrigeration is natural
Gas liquefaction technical process obtains a wide range of applications.In mixed working fluid process of refrigerastion, flow through high pressure in pipe and mix
Closing working medium, the shell-side that pipe external series gap is formed flows through low pressure mixed working fluid.Pipe inner high voltage mixed working fluid temperature by height to
Low experiencing again to the phase transformation condensation heat transfer process of liquid phase from vapour phase to vehicle repair major, fluid density constantly increases,
As runner design is improper, the volume flow rate of vehicle repair major therein can constantly reduce, and causes condensed fluid to rely on weight
Power backflow is accumulated, and mixed working fluid circulation composition changes, and causes refrigeration performance generation deviation, can make time serious
Refrigeration performance is unable to reach design requirement.
On the other hand, traditional spiral winding tube type heat exchanger is in manufacturing process, selected once design, around pipe
Angle and diameter cannot change, and are adjusted, for avoiding high pressure mixing working medium merely by changing heat exchanger tube length
Vehicle repair major separates, it will increase heat transmission equipment number of units, is unfavorable for the integrated of spiral winding tube type heat exchanger entirety
Change and maximize.
At present, natural gas liquefaction system based on wrap-round tubular heat exchanger has been reported, wherein patent of invention
CN201210236962, it is provided that wound tube heat exchanger be integrated with precooling zone, liquefaction stages and three sections of heat exchange of super cooled sect
Device.Three sections of heat exchangers are only connected by above-mentioned heat exchanger by housing, it is impossible to flow work to pipe inner high voltage mixed working fluid
Condition carries out improving regulation.
It addition, patent of invention CN20120569754 also provides one by single tube wrapping wound tube heat exchanger with double
The composite heat-exchanger structure that tubular type wrap-round tubular heat exchanger combines, this structure can improve different temperatures multiply
The point of penetration of stream heat exchange, but Tube Sheet of Heat Exchanger still uses a kind of caliber to be wound around, and in not considering different tube side, fluid is because of temperature
Density and physical property that degree change causes change, and are not suitable for mixed working fluid cryogenic refrigerating system.
Summary of the invention
Present invention aim at: for above-mentioned the deficiencies in the prior art, the present invention proposes a kind of reducer pipe
The spiral tube heat exchanger being wound around, by changing the diameter being wound around heat exchanger tube, the volume flow rate of regulation high-pressure fluid,
Can realize big temperature across under the conditions of the high efficient heat exchanging of different temperatures section, there is compact conformation, heat exchange efficiency is high, is beneficial to
By the difference integrated assembling of warm area heat exchanger, reduce heat exchanger volume, reduce the advantages such as heat transmission equipment quantity, available
Field of low-temperature refrigeration in multiple application and environment.
Technical scheme is as follows:
The spiral tube heat exchanger that the reducer pipe that the present invention provides is wound around, comprising:
One heat exchanger shell；Described heat exchanger shell is by the major diameter housing 12 being sequentially connected, transitional diameter housing
26 and minor diameter housing 7 form；
One is loaded on the heat exchanger core body within described heat exchanger shell with one heart；Described heat exchanger core body is by depending on
Secondary connected major diameter core body 22, transition core body 24 and minor diameter core body 28 form；Described major diameter
Core body 22, transition core body 24 and minor diameter core body 28 respectively with corresponding major diameter housing 12, transition
Diameter housing 26 and minor diameter housing 7 are isometric；
Be loaded between described minor diameter core body 28 upper end and minor diameter housing 7 upper end first fixes card
6；Be loaded between described transition core body 24 upper end and transitional diameter housing 26 upper end second fixes card
8；It is loaded on the 3rd fixed plate 10 between described transition core body 24 bottom and transitional diameter housing 26 bottom；
It is loaded on the 4th fixed plate 13 between described major diameter core body 22 bottom and major diameter housing 12 bottom；
It is helically wound around multi-layer helical shape the first tube side major diameter tube bank layer 11 on described major diameter core body 22
Layer 23 is restrained with multi-layer helical shape the second tube side major diameter；Described multi-layer helical shape the first tube side major diameter tube bank layer
The tube bank upper end of 11 is connected with described 3rd fixed plate 10, described multi-layer helical shape the first tube side major diameter tube bank layer
The tube bank lower end of 11 is connected with described 4th fixed plate 13；Described multi-layer helical shape the second tube side major diameter tube bank layer
The tube bank upper end of 23 is connected with described 3rd fixed plate 10, described multi-layer helical shape the second tube side major diameter tube bank layer
The tube bank lower end of 23 is connected with described 4th fixed plate 13；
It is helically wound around multi-layer helical shape the first tube side minor diameter tube bank layer 5 on described minor diameter core body 28
Layer 30 is restrained with multi-layer helical shape the second tube side minor diameter；Described multi-layer helical shape the first tube side minor diameter tube bank layer
The tube bank upper end of 5 is fixed card 6 with described first and is connected, described multi-layer helical shape the first tube side minor diameter tube bank layer
The tube bank lower end of 5 is fixed card 8 with described second and is connected；Described multi-layer helical shape the second tube side minor diameter tube bank layer
The tube bank upper end of 30 is fixed card 6 with described first and is connected, and described multi-layer helical shape the second tube side minor diameter is restrained
The tube bank lower end of layer 30 is fixed card 8 with described second and is connected；
Described multi-layer helical shape the first tube side major diameter tube bank layer 11 being connected in described 3rd fixed plate 10
Tube bank is respectively by the first tube side reducing transition conduit 9 and described multi-layer helical the first tube side minor diameter tube bank layer 5
Tube bank is connected；Described multi-layer helical shape the second tube side major diameter tube bank being connected in described 3rd fixed plate 10
The tube bank of layer 23 is respectively by the second tube side reducing transition conduit 25 and described multi-layer helical shape the second tube side major diameter
The tube bank of tube bank layer 30 is connected；
It is loaded on the upper cover 2 of the band top shell side import 1 of described heat exchanger shell upper end；It is loaded on described upper cover 2
The first tube side outlet distribution tube sheet 4 on sidewall and the second tube side outlet distribution tube sheet 31；Described multi-layer helical shape
The tube bank of the first tube side minor diameter tube bank layer 5 is respectively by the through hole on described first tube side outlet distribution tube sheet 4
It is connected with the first tube side outlet 3；The tube bank of described multi-layer helical shape the second tube side minor diameter tube bank layer 30 is respectively
It is connected by the through hole on described second tube side outlet distribution tube sheet 31 and the second tube side outlet 32；
It is loaded on the low head 19 of the band bottom shell-side outlet 18 of described heat exchanger shell lower end；It is loaded on described low head
The first tube side import distribution tube sheet 21 on 19 sidewalls and the second tube side import distribution tube sheet 15；Described multilamellar spiral shell
The tube bank of rotation shape the first tube side major diameter tube bank layer 11 is respectively by described first tube side import distribution tube sheet 21
Through hole and the first tube side import 20 be connected；Described multi-layer helical shape the second tube side major diameter tube bank layer 23
Tube bank is connected by the through hole on described second tube side outlet distribution tube sheet 15 and the second tube side import 16 respectively；
The one heat exchanger shell lower end being loaded on the spiral tube heat exchanger that described reducer pipe is wound around in order to fixing described
The skirt 17 of heat exchanger shell.
Described multi-layer helical shape the first tube side major diameter tube bank layer 11, the tube bank of multi-layer helical shape the second tube side major diameter
Layer 23, multi-layer helical shape the first tube side minor diameter tube bank layer 5 and multi-layer helical shape the second tube side minor diameter tube bank layer
30 are spirally wound on corresponding heat exchanger core body many to be formed respectively by the heat exchanger tube of more than respectively
The tube bank layer of the corresponding tube side of layer；The tube bank layer winding direction of each layer tube side is identical or contrary, heat exchanger tube spiral winding
Helical angle be 5-20 °；The pipe range of the heat exchanger tube of every layer of tube side, winding angle are identical with spacing, every layer of tube side
The diameter of heat exchanger tube and the proportional increase of pipe number.
Tube bank and multi-layer helical shape second tube side of described multi-layer helical shape the first tube side major diameter tube bank layer 11 are the most straight
The tube bank of footpath tube bank layer 23 uses a diameter of 1mm to 40mm light pipe or corrugated tubing to be wound around；Multi-layer helical shape
The tube bank of one tube side minor diameter tube bank layer 5 and the tube bank of multi-layer helical shape the second tube side minor diameter tube bank layer 30 use
A diameter of 1mm to 40mm light pipe or corrugated tubing are wound around.
Described multi-layer helical shape the first tube side major diameter tube bank layer 11, the tube bank of multi-layer helical shape the second tube side major diameter
Layer 23, multi-layer helical shape the first tube side minor diameter tube bank layer 5 and multi-layer helical shape the second tube side minor diameter tube bank layer
Paraphysis 29 is installed to control gap between two-layer between the adjacent two layers of 30.The heat exchange of identical tube side spiral winding
Pipe is connected by one or more diameter heat exchanger tubes of different length and forms, and the heat exchanger tube of same diameter twines each layer
Identical around height.
The advantage of the spiral tube heat exchanger that the reducer pipe of the present invention is wound around is as follows:
The spiral tube heat exchanger that the reducer pipe of the present invention is wound around is wound around the diameter of heat exchanger tube, regulation height by changing
The volume flow rate of baric flow body, can realize big temperature across under the conditions of the high efficient heat exchanging of different temperatures section, there is compact conformation,
Heat exchange efficiency is high, is beneficial to the difference integrated assembling of warm area heat exchanger, reduces heat exchanger volume, reduces heat transmission equipment
The advantages such as quantity, can be used for the field of low-temperature refrigeration of multiple application and environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spiral tube heat exchanger using reducer pipe to be wound around of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment is expanded on further the present invention.
Embodiment 1
Shown in Figure 1, the spiral tube heat exchanger of the reducer pipe winding that the present invention provides, comprising:
One heat exchanger shell；Described heat exchanger shell is by the major diameter housing 12 being sequentially connected, transitional diameter housing
26 and minor diameter housing 7 form；
One is loaded on the heat exchanger core body within described heat exchanger shell with one heart；Described heat exchanger core body is by depending on
Secondary connected major diameter core body 22, transition core body 24 and minor diameter core body 28 form；Described major diameter
Core body 22, transition core body 24 and minor diameter core body 28 respectively with corresponding major diameter housing 12, transition
Diameter housing 26 and minor diameter housing 7 are isometric；
Be loaded between described minor diameter core body 28 upper end and minor diameter housing 7 upper end first fixes card
6；Be loaded between described transition core body 24 upper end and transitional diameter housing 26 upper end second fixes card
8；It is loaded on the 3rd fixed plate 10 between described transition core body 24 bottom and transitional diameter housing 26 bottom；
It is loaded on the 4th fixed plate 13 between described major diameter core body 22 bottom and major diameter housing 12 bottom；
It is helically wound around multi-layer helical shape the first tube side major diameter tube bank layer 11 on described major diameter core body 22
Layer 23 is restrained with multi-layer helical shape the second tube side major diameter；Described multi-layer helical shape the first tube side major diameter tube bank layer
The tube bank upper end of 11 is connected with described 3rd fixed plate 10, described multi-layer helical shape the first tube side major diameter tube bank layer
The tube bank lower end of 11 is connected with described 4th fixed plate 13；Described multi-layer helical shape the second tube side major diameter tube bank layer
The tube bank upper end of 23 is connected with described 3rd fixed plate 10, described multi-layer helical shape the second tube side major diameter tube bank layer
The tube bank lower end of 23 is connected with described 4th fixed plate 13；
It is helically wound around multi-layer helical shape the first tube side minor diameter tube bank layer 5 on described minor diameter core body 28
Layer 30 is restrained with multi-layer helical shape the second tube side minor diameter；Described multi-layer helical shape the first tube side minor diameter tube bank layer
The tube bank upper end of 5 is fixed card 6 with described first and is connected, described multi-layer helical shape the first tube side minor diameter tube bank layer
The tube bank lower end of 5 is fixed card 8 with described second and is connected；Described multi-layer helical shape the second tube side minor diameter tube bank layer
The tube bank upper end of 30 is fixed card 6 with described first and is connected, and described multi-layer helical shape the second tube side minor diameter is restrained
The tube bank lower end of layer 30 is fixed card 8 with described second and is connected；
Described multi-layer helical shape the first tube side major diameter tube bank layer 11 being connected in described 3rd fixed plate 10
Tube bank is respectively by the first tube side reducing transition conduit 9 and described multi-layer helical the first tube side minor diameter tube bank layer 5
Tube bank is connected；Described multi-layer helical shape the second tube side major diameter tube bank being connected in described 3rd fixed plate 10
The tube bank of layer 23 is respectively by the second tube side reducing transition conduit 25 and described multi-layer helical shape the second tube side major diameter
The tube bank of tube bank layer 30 is connected；
It is loaded on the upper cover 2 of the band top shell side import 1 of described heat exchanger shell upper end；It is loaded on described upper cover 2
The first tube side outlet distribution tube sheet 4 on sidewall and the second tube side outlet distribution tube sheet 31；Described multi-layer helical shape
The tube bank of the first tube side minor diameter tube bank layer 5 is respectively by the through hole on described first tube side outlet distribution tube sheet 4
It is connected with the first tube side outlet 3；The tube bank of described multi-layer helical shape the second tube side minor diameter tube bank layer 30 is respectively
It is connected by the through hole on described second tube side outlet distribution tube sheet 31 and the second tube side outlet 32；
It is loaded on the low head 19 of the band bottom shell-side outlet 18 of described heat exchanger shell lower end；It is loaded on described low head
The first tube side import distribution tube sheet 21 on 19 sidewalls and the second tube side import distribution tube sheet 15；Described multilamellar spiral shell
The tube bank of rotation shape the first tube side major diameter tube bank layer 11 is respectively by described first tube side import distribution tube sheet 21
Through hole and the first tube side import 20 be connected；Described multi-layer helical shape the second tube side major diameter tube bank layer 23
Tube bank is connected by the through hole on described second tube side outlet distribution tube sheet 15 and the second tube side import 16 respectively；
The one heat exchanger shell lower end being loaded on the spiral tube heat exchanger that described reducer pipe is wound around in order to fixing described
The skirt 17 of heat exchanger shell.
The present embodiment 1 is a kind of (three plumes) spiral tube heat exchanger using reducer pipe to be wound around, and can carry out
Heat transfer process between mix refrigerant and unstripped gas nitrogen, total height is 2.2 meters, major diameter housing 12 external diameter
It is respectively 219mm and 133mm with minor diameter housing 7 external diameter；
Wherein, the first tube side and the tube bank of the second tube side minor diameter use 56 diameter 4mm, the copper pipe of long 8 meters altogether
Helically coiling, the first tube side and the tube bank of the second tube side major diameter use 56 diameter 6mm, the copper of long 10.2m altogether
Pipe helically coiling；High pressure mixing cold-producing medium passes through the second tube side import 16, distributes tube sheet 5 through the second tube side import
The second tube side major diameter tube bank 23 is entered after distribution.Second tube side major diameter tube bank 23 is by 56 major diameter heat exchange
38 compositions in tube bank, are spirally wound on major diameter core body 22, by shell side in major diameter housing 12
Fluid low pressure mix refrigerant cools down, then fixes card 8 and the 3rd the second tube side fixing on card 10 through second
Reducing transition conduit 25 is connected with the second tube side minor diameter tube bank 30.Second tube side minor diameter tube bank 30 is by 56
38 compositions in minor diameter heat-exchanging tube bundle, are spirally wound on minor diameter core body 28, at minor diameter housing 7
Continued cooling by shell-side fluid low pressure mix refrigerant, export tube sheet 31 and the second tube side outlet 32 through the second tube side
Outflow heat exchanger；
The high pressure mixing cold-producing medium of outflow heat exchanger, after throttling, enters heat exchanger by shell side import 1, little
Diameter housing 7 respectively with first tube side minor diameter tube bank 5 and second tube side minor diameter restrain 30 heat exchange, after warp
Transitional shell 26 enter major diameter housing 12 respectively with the first tube side major diameter tube bank 11 and second tube side major diameter
Tube bank 23 carries out heat exchange, by shell-side outlet 18 outflow heat exchanger；
Unstripped gas nitrogen by the first tube side import 20, enters the after the first tube side import distribution tube sheet 21 distribution
One tube side major diameter tube bank 11.First tube side major diameter tube bank 11 is by 18 in 56 major diameter heat-exchanging tube bundles
Composition, is spirally wound on major diameter core body 22, is mixed by shell-side fluid low pressure in major diameter housing 12
Cold-producing medium cools down, then fixes card 8 and the 3rd the second tube side reducing transition conduit 25 fixing on card 10 through second
It is connected with the first tube side minor diameter tube bank 5.First tube side minor diameter tube bank 5 is by 56 minor diameter heat-exchanging tube bundles
18 compositions, be spirally wound on minor diameter core body 28, at minor diameter housing 7 by shell-side fluid low pressure
Mix refrigerant continues cooling, exports 3 outflow heat exchangers through the first tube side outlet tube sheet 4 and the first tube side, complete
Become whole heat transfer process.
In the present embodiment, nearly 160 DEG C of the tube side fluid temperature span in heat exchanger, there is notable change in fluid density,
Velocity in pipes and heat exchange all will be a greater impact.The spiral tube heat exchanger using reducer pipe to be wound around can be fine
Bearing temperature changes the Material shrinkage caused, and can preferably ensure velocity in pipes and the heat exchange effect of cooled medium
Really, improve heat exchange efficiency, decrease the volume of heat exchanger, so that overall heat exchange device is the most efficient.
Claims (6)
1. the spiral tube heat exchanger that reducer pipe is wound around, comprising:
One heat exchanger shell；Described heat exchanger shell is by the major diameter housing (12) being sequentially connected, transitional diameter housing
(26) form with minor diameter housing (7)；
One is loaded on the heat exchanger core body within described heat exchanger shell with one heart；Described heat exchanger core body is by successively
Major diameter core body (22), transition core body (24) and minor diameter core body (28) composition being connected；Described greatly
Diameter core body (22), transition core body (24) and minor diameter core body (28) respectively with corresponding major diameter shell
Body (12), transitional diameter housing (26) and minor diameter housing (7) are isometric；
It is loaded on first between described minor diameter core body (28) upper end and minor diameter housing (7) upper end to fix
Card (6)；It is loaded between described transition core body (24) upper end and transitional diameter housing (26) upper end
Second fixes card (8)；It is loaded on described transition core body (24) bottom and transitional diameter housing (26) lower end
The 3rd fixed plate (10) between portion；It is loaded on described major diameter core body (22) bottom and major diameter housing (12)
The 4th fixed plate (13) between bottom；
It is helically wound around multi-layer helical shape the first tube side major diameter tube bank layer on described major diameter core body (22)
(11) and multi-layer helical shape the second tube side major diameter tube bank layer (23)；Described multi-layer helical shape the first tube side major diameter
The tube bank upper end of tube bank layer (11) is connected with described 3rd fixed plate (10), described multi-layer helical shape the first tube side
The tube bank lower end of major diameter tube bank layer (11) is connected with described 4th fixed plate (13)；Described multi-layer helical shape
The tube bank upper end of two tube side major diameters tube bank layer (23) is connected with described 3rd fixed plate (10), described multilamellar spiral shell
The tube bank lower end of rotation shape the second tube side major diameter tube bank layer (23) is connected with described 4th fixed plate (13)；
It is helically wound around multi-layer helical shape the first tube side minor diameter tube bank layer on described minor diameter core body (28)
(5) and multi-layer helical shape the second tube side minor diameter tube bank layer (30)；Described multi-layer helical shape the first tube side minor diameter
The tube bank upper end of tube bank layer (5) is fixed card (6) with described first and is connected, described multi-layer helical shape the first tube side
The tube bank lower end of minor diameter tube bank layer (5) is fixed card (8) with described second and is connected；Described multi-layer helical shape
The tube bank upper end of two tube side minor diameters tube bank layer (30) is fixed card (6) with described first and is connected, described multilamellar spiral shell
The tube bank lower end of rotation shape the second tube side minor diameter tube bank layer (30) is fixed card (8) with described second and is connected；
Described multi-layer helical shape the first tube side major diameter tube bank layer (11) being connected in described 3rd fixed plate (10)
Tube bank respectively by the first tube side reducing transition conduit (9) and described multi-layer helical the first tube side minor diameter tube bank layer (5)
Tube bank be connected；Described multi-layer helical shape the second tube side major diameter being connected in described 3rd fixed plate (10)
The tube bank of tube bank layer (23) is managed with described multi-layer helical shape second by the second tube side reducing transition conduit (25) respectively
The tube bank of journey major diameter tube bank layer (30) is connected；
It is loaded on the upper cover (2) on band top shell side import (1) of described heat exchanger shell upper end；It is loaded on described upper envelope
The first tube side outlet distribution tube sheet (4) on head (2) sidewall and the second tube side outlet distribution tube sheet (31)；Described
The tube bank of multi-layer helical shape the first tube side minor diameter tube bank layer (5) is respectively by described first tube side outlet distribution tube sheet
(4) through hole and the first tube side outlet (3) on are connected；Described multi-layer helical shape the second tube side minor diameter is restrained
The tube bank of layer (30) is gone out by the through hole on described second tube side outlet distribution tube sheet (31) and the second tube side respectively
Mouth (32) is connected；
It is loaded on the low head (19) of band bottom shell-side outlet (18) of described heat exchanger shell lower end；Be loaded on described under
The first tube side import distribution tube sheet (21) on end socket (19) sidewall and the second tube side import distribution tube sheet (15)；
The tube bank of described multi-layer helical shape the first tube side major diameter tube bank layer (11) is divided by described first tube side import respectively
Through hole and the first tube side import (20) on tube plate (21) are connected；Described multi-layer helical shape the second tube side is big
The tube bank of diameter tube bank layer (23) is respectively by the through hole on described second tube side outlet distribution tube sheet (15) and the
Two tube side imports (16) are connected；
Changing described in fixing of the one heat exchanger shell lower end being loaded on the spiral tube heat exchanger that described reducer pipe is wound around
The skirt (17) of hot device housing.
2. the spiral tube heat exchanger that the reducer pipe as described in claim 1 is wound around, it is characterised in that described multilamellar
Spiral type the first tube side major diameter tube bank layer (11), multi-layer helical shape the second tube side major diameter tube bank layer (23), many
Helical layer shape the first tube side minor diameter tube bank layer (5) and multi-layer helical shape the second tube side minor diameter tube bank layer (30) point
Spirally it is not wound on corresponding heat exchanger core body by the heat exchanger tube of more than and answers forming multi-layer phase respectively
The tube bank layer of tube side；The tube bank layer winding direction of each layer tube side is identical or contrary, the helical angle of heat exchanger tube spiral winding
For 5-20 °；The pipe range of the heat exchanger tube of every layer of tube side, winding angle are identical with spacing, the heat exchanger tube of every layer of tube side straight
Footpath and the proportional increase of pipe number.
3. the spiral tube heat exchanger that the reducer pipe as described in claim 1 or 2 is wound around, it is characterised in that described
The tube bank of multi-layer helical shape the first tube side major diameter tube bank layer (11) and the tube bank of multi-layer helical shape the second tube side major diameter
The tube bank of layer (23) uses Φ 1mm to Φ 40mm diameter light pipe or corrugated tubing to be wound around；Multi-layer helical shape first is managed
The tube bank of the tube bank of journey minor diameter tube bank layer (5) and multi-layer helical shape the second tube side minor diameter tube bank layer (30) uses
Φ 1mm to Φ 40mm diameter light pipe or corrugated tubing are wound around.
4. the spiral tube heat exchanger that the reducer pipe as described in claim 1 or 2 is wound around, it is characterised in that described
Multi-layer helical shape the first tube side major diameter tube bank layer (11), multi-layer helical shape the second tube side major diameter tube bank layer (23),
Multi-layer helical shape the first tube side minor diameter tube bank layer (5) and multi-layer helical shape the second tube side minor diameter tube bank layer (30)
Adjacent two layers between paraphysis (29) is installed to control gap between two-layer.
5. the spiral tube heat exchanger that the reducer pipe as described in claim 3 is wound around, it is characterised in that described multilamellar
Spiral type the first tube side major diameter tube bank layer (11), multi-layer helical shape the second tube side major diameter tube bank layer (23), many
Helical layer shape the first tube side minor diameter tube bank layer (5) and multi-layer helical shape the second tube side minor diameter restrain layer (30)
Paraphysis (29) is installed to control gap between two-layer between adjacent two layers.
6. the spiral tube heat exchanger that the reducer pipe as described in claim 1 is wound around, it is characterised in that identical tube side
The heat exchanger tube of spiral winding is connected by one or more diameter heat exchanger tubes of different length and forms, the heat exchange of same diameter
Pipe is the most identical in the winding of each layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351126.8A CN104896971B (en) | 2015-06-23 | 2015-06-23 | Spiral tube type heat exchanger with winding reducer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351126.8A CN104896971B (en) | 2015-06-23 | 2015-06-23 | Spiral tube type heat exchanger with winding reducer pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896971A CN104896971A (en) | 2015-09-09 |
| CN104896971B true CN104896971B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351126.8A Active CN104896971B (en) | 2015-06-23 | 2015-06-23 | Spiral tube type heat exchanger with winding reducer pipe |
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|---|---|
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| CN105444593A (en) * | 2015-12-16 | 2016-03-30 | 南京正源搪瓷设备制造有限公司 | PTFE (Polytetrafluoroethylene) heat exchanger |
| CN106052456A (en) * | 2016-03-30 | 2016-10-26 | 华东理工大学 | Heat transfer enhancing heat-exchange tubes for ethylene cracking furnace |
| CN106827476B (en) * | 2017-01-20 | 2022-11-22 | 河北泰沃塑管有限公司 | Winding device for manufacturing reducing composite layer pipe |
| CN108981423A (en) * | 2018-09-13 | 2018-12-11 | 上海核工程研究设计院有限公司 | A kind of winding tube type heat exchange assembly |
| CN109289713B (en) * | 2018-10-18 | 2021-04-20 | 辽宁石油化工大学 | Mosquito-repellent incense coil isothermal reactor and using method thereof |
| CN111928215B (en) * | 2020-07-02 | 2022-07-19 | 合肥通用机械研究院有限公司 | High-efficient compact steam generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA878266A (en) * | 1969-04-21 | 1971-08-17 | Brants Henry | Heat exchanger |
| US4313491A (en) * | 1978-06-30 | 1982-02-02 | Molitor Industries, Inc. | Coiled heat exchanger |
| JPS5933828B2 (en) * | 1979-07-09 | 1984-08-18 | 川崎重工業株式会社 | Heat exchanger |
| CN102538387A (en) * | 2011-11-22 | 2012-07-04 | 张周卫 | Liquefied natural gas (LNG) low temperature liquefied three-level refrigeration spiral wound tube type heat exchanger |
| CN102564056B (en) * | 2011-11-27 | 2014-04-16 | 张周卫 | Multi-flow spiral winding tube type main heat exchange equipment with mixed refrigerant for low-temperature liquefaction of LNG (liquefied natural gas) |
| CN103063057B (en) * | 2013-01-30 | 2015-11-25 | 张周卫 | Feed gas chiller three plume low temperature wrap-round tubular heat exchangers |
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