CN203758321U - Heat transfer tube compact arrangement economizer - Google Patents
Heat transfer tube compact arrangement economizer Download PDFInfo
- Publication number
- CN203758321U CN203758321U CN201420112435.0U CN201420112435U CN203758321U CN 203758321 U CN203758321 U CN 203758321U CN 201420112435 U CN201420112435 U CN 201420112435U CN 203758321 U CN203758321 U CN 203758321U
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- Prior art keywords
- heat
- pipe
- transfer pipe
- tubes
- tube
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- Expired - Lifetime
Links
- 238000012546 transfer Methods 0.000 title claims abstract description 70
- 230000008676 import Effects 0.000 claims description 14
- 230000004308 accommodation Effects 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000005097 cold rolling Methods 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 11
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat transfer tube compact arrangement economizer which comprises a shell body. The two ends of the shell body are sealed by a first tube plate and a second tube plate respectively to form a containing space, a plurality of heat exchange tubes are arranged in the shell body, the heat exchange tubes comprises heat transfer tubes, first round tubes and second round tubes, the first round tubes and the second round tubes are connected to two ends of the heat transfer tubes, the first round tubes, the heat transfer tubes and the second round tubes are integrally formed, the perimeters of the cross sections of the first round tubes, the heat transfer tubes and the second round tubes are equal, the adjacent heat exchange tubes are in point contact through protrusions on the heat transfer tubes to form a self-supporting structure, and clearances are correspondingly formed between adjacent contact points of the adjacent heat exchange tubes to form a net-shaped channel in the containing space. According to the heat transfer tube compact arrangement economizer, the tube shell pass space is effectively controlled by changing the flattening rate and distortion ratio of the deformed heat exchange tubes, the shell pass space is more compact, the flow speed of shell pass refrigerant liquid is improved, the tube shell pass heat exchange process is matched better, and the size of the economizer is reduced.
Description
Technical field
The utility model relates to a kind of Thermal Equipment, relates in particular to heat-transfer pipe compact arrangement economizer.
Background technology
Refrigeration unit is widely used in every field, economizer is to set up in refrigeration unit, its object is to make the refrigerant liquid of HTHP and the refrigerant vapour of low-temp low-pressure carry out inner heat exchange, reach the object that refrigerant liquid is excessively cold, refrigerant vapour is overheated, thereby increase the refrigerating capacity of whole system.The economizer using in current industrial is commonly traditional full-liquid type heat exchanger, the type heat exchanger shell pass and tube side quality, flow is almost equal, but shell side is walked a small amount of refrigerant liquid, tube side is walked refrigerant vapour, both volume ratios are (3-6): 1, be the design for this quasi-tradition heat-transfer pipe heat exchanger, shell side space size is generally much bigger than tube side space, cause like this shell side refrigerant flow rate very low, make total heat exchange efficiency of whole economizer not high, bulky, especially at boats and ships, the environment of the limited space such as automobile, economizer in the urgent need to a kind of small compact.For economizer, make tube side volume be greater than shell side volume, could realize the efficient operation of economizer, and cannot realizing tube side space, original manufacturing process is greater than shell side space, this is the not variation of diameter due to original heat-transfer pipe, and the spacing of tube sheet place heat-transfer pipe is always 1.25 times of heat-transfer pipe diameter.
Utility model content
For above-mentioned deficiency, the utility model object is to provide a kind of can effectively utilize heat exchange area, improves heat transfer coefficient, the economizer that heat-transfer pipe high-efficiency compact is arranged.
For realizing above object, the technical scheme that the utility model has been taked is:
Heat-transfer pipe compact arrangement economizer, it comprises housing, the two ends of described housing are sealed by the first tube sheet and the second tube sheet respectively, form an accommodation space, a plurality of heat exchanger tubes are installed in this housing, the outside of the first tube sheet and the second tube sheet is fixedly connected with respectively one first end socket and the second end socket, one end of described heat exchanger tube is connected with the tube side import being fixedly connected on this first end socket by the first end socket, its other end is connected with the tube side outlet being fixedly connected with on this second end socket by the second end socket, described housing upper, lower both sides are fixedly connected with respectively a shell side import being connected with accommodation space and shell side outlet, wherein, shell side import is close to the second tube sheet, shell side outlet is close to the first tube sheet, the first pipe and the second pipe that described heat exchanger tube comprises heat-transfer pipe and is connected in these heat-transfer pipe two ends, described the first pipe, heat-transfer pipe and the second pipe are one-body molded, wherein, the first pipe is fixed on the first tube sheet, the second pipe is fixed on the second tube sheet, the section girth of described the first pipe, heat-transfer pipe and the second pipe all equates, adjacent heat exchange tubes realizes some contact to form self supporting structure by the boss on heat-transfer pipe, and between adjacent two contact points of adjacent heat exchange tubes, corresponding formation gap to form netted passage in accommodation space.
Described heat-transfer pipe is helically twisted three leaf pipes, the cross section of described helically twisted three leaf pipes is tri-lobed structure, the closed curve that described tri-lobed structure is become to be cross-linked to form with three circular arcs by three semiellipses, wherein, the summit of three circular arcs is positioned on the inscribed circle of this tri-lobed structure, and three summit to formed angles of inscribed circle circle center line connecting are 120 °, adjacent heat exchange tubes is in contact with one another to form self supporting structure by semiellipse, and the corresponding formation of the circular arc gap of adjacent heat exchange tubes to form netted passage in accommodation space.Heat-transfer pipe also can adopt expansion tube.
Described the first pipe, the second pipe weld respectively or expanded joint on the first tube sheet, the second tube sheet.
Described heat exchanger tube is copper pipe.
The outer surface of described copper pipe is provided with fin reinforcing structure.
Described heat-transfer pipe is processed through cold rolling by smooth pipe.
Described heat exchanger tube, housing, the first end socket, the second end socket carry out heat dip zinc treating.
The radius ratio of described inscribed circle and circular arc is (0.2～2): 1.
The ratio of the helical pitch of described heat-transfer pipe and the radius of circular arc is (10～100): 1.
The diameter ratio example of the hydraulic diameter of described heat-transfer pipe and the first pipe is (0.5～0.9): 1.
The utility model heat-transfer pipe compact arrangement economizer is comprised of many distortion heat exchanger tubes that have in end socket, heat exchanger shell and the housing of import and export, and housing two ends connect tube sheet, and heat exchanger tube two ends and tube sheet are tightly connected.Deflection plate is not set in heat exchanger shell, and tube bank relies on the projection on heat exchanger tube tube wall to realize self-supporting, and forms special spirality channel, strengthens the disturbance in convection cell boundary layer, improves heat exchange efficiency.Fluid is complete longitudinal stream at shell side, is rendered as the heat exchange form of pure adverse current with pipe shell-side fluid, and heat exchange area is fully used, and the pressure drop of shell side simultaneously also significantly reduces.
Compared with prior art, tool has the following advantages the utility model:
1, fluid is complete longitudinal stream at shell side, is rendered as the heat exchange form of pure adverse current with pipe shell-side fluid, and heat exchange area is fully used, and the coefficient of heat transfer can improve 20～30%, and the pressure drop of shell side simultaneously also significantly reduces.
2, can be out of shape by change flattening ratio (referring to spiral torsional curved tube) or the expansion rate (referring to expansion tube) of heat exchanger tube, regulate the inside and outside volume ratio of tube side and shell side, the pipe diameter at heat-transfer pipe two ends and heat-transfer pipe diameter ratio are made to 1/1.25, like this, two according to normal welding or expanded joint on tube sheet, between heat-transfer pipe, just mutually pile up, reach the effective control to shell journey space size, make shell side space compacter, improve shell side refrigerant liquid rate of flow of fluid, shell journey heat transfer process is mated more, reduce economizer volume.
3, due to deflection plate not being set, heat exchanger tube can be covered with in whole accommodation space, has further reduced the volume of economizer.
4, the heat-transfer pipe of heat exchanger tube part is due to the self supporting structure of its continuous helix and reduced diameter portion, reduced the span between heat exchanger tube, make the intrinsic frequency of heat exchanger tube avoid the excited frequency of fluid, avoided the breakage causing because of resonance, thereby extended the life-span of equipment, reduced maintenance cost.
5, due to effectively the washing away of fluid, also reduce the deposition of dirt, made this economizer operate in for a long time efficient state, reached energy-conservation object.
6, adopt surface to have the copper pipe of fin structure, make the surface of copper pipe form loose structure, both the outer liquid phase thickness of attenuate copper pipe, increased again heat convection speed simultaneously, further improved heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model heat-transfer pipe compact arrangement economizer;
Fig. 2 is for adopting the structural representation of the heat exchanger tube of tri-lobed;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the cutaway view of single heat exchanger tube in Fig. 3.
Wherein: 1, housing; 2, tube sheet; 3, tube sheet; 4, end socket; 5, end socket; 6, shell side import; 7, shell side outlet; 8, tube side import; 9, tube side outlet; 10, heat exchanger tube; 101, heat-transfer pipe; 1011, semiellipse; 1012, circular arc; 102, pipe; 103, pipe; 11, inscribed circle.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, content of the present utility model is described in further details.
Embodiment:
Please refer to shown in Fig. 1, heat-transfer pipe compact arrangement economizer, it comprises housing 1, the two ends of described housing 1 are respectively by tube sheet 2 and tube sheet 3 sealings, form an accommodation space, a plurality of heat exchanger tubes 10 are installed in this housing 1, the outside of tube sheet 2 and tube sheet 3 is fixedly connected with respectively end socket 4 and end socket 5, one end of heat exchanger tube 10 is welded on tube sheet 2, and be connected with the tube side import 8 being fixedly connected on end socket 4 by end socket 4, the other end of heat exchanger tube 10 is welded on tube sheet 3, and is connected with the tube side outlet 9 being fixedly connected on end socket 5 by end socket 5.The upper and lower both sides of housing 1 are fixedly connected with respectively a shell side import 6 being connected with accommodation space and shell side outlet 7, and wherein, shell side import 6 is close to tube sheet 3, and shell side outlet 7 is close to tube sheet 2.
Please refer to shown in Fig. 2, pipe 102 and pipe 103 that heat exchanger tube 10 comprises heat-transfer pipe 101 and is connected in these heat-transfer pipe 101 two ends, pipe 102, heat-transfer pipe 101 and pipe 103 are one-body molded, heat exchanger tube 10 is smooth circular copper pipe, in the utility model preferred embodiment, heat-transfer pipe 101 adopts helically twisted tubular construction, certainly, can be also expansion tube structure.The heat-transfer pipe of the mid portion of heat exchanger tube 10 can form helically twisted structure by cold-rolling treatment, and two ends are without processing.The girth of pipe 102, heat-transfer pipe 101 and pipe 103 all equates.The surface of copper pipe arranges a plurality of fin structures, forms pore structure between adjacent fins, and it is the outer liquid phase thickness of attenuate copper pipe both, increases again heat convection speed simultaneously.Wherein, the end of pipe 102 is welded on tube sheet 2, and the end of pipe 103 is welded on tube sheet 3.Adjacent heat exchange tubes 10 is in contact with one another a plurality of contact points of formation by the bossing of heat-transfer pipe 101, realize the self supporting structure of heat exchanger tube 10, the certain gap of corresponding formation between the adjacent contact points of adjacent heat exchange tubes 10, the webbed passage of shape in shell side, shell side refrigerant liquid rate of flow of fluid, to form netted passage in accommodation space, is improved in the corresponding formation of the circular arc gap of adjacent heat exchange tubes.
Please refer to shown in Fig. 3 and Fig. 4, in the utility model, heat-transfer pipe 101 adopts helically twisted three leaf tubular constructions, be that its cross section is tri-lobed structure, tri-lobed structure is by 1012 one-tenth closed curves that are cross-linked to form of three semiellipses 1011 and three circular arcs, wherein, the summit of three circular arcs 1012 is positioned on the inscribed circle 11 of this tri-lobed structure, and three summits are 120 ° to the formed angle a of inscribed circle 11 circle center line connecting, adjacent heat exchange tubes 10 is in contact with one another to form self supporting structure by semiellipse 1011, the corresponding formation of circular arc 1012 gap of adjacent heat exchange tubes to form netted passage in accommodation space.The radius R of inscribed circle and the radius r of circular arc are than being (0.2～2): 1, when the ratio of the two is less, illustrate that heat-transfer pipe 101 is more flat, shell side space is just larger, otherwise shell side space is less, by adjusting the ratio of the two, can to pipe, shell side space size effective control.Meanwhile, the distortion of heat-transfer pipe 101 is than regulating by the ratio of the helical pitch of heat-transfer pipe 101 and the radius of circular arc 1012, and in the utility model, the two ratio is (10～100): 1.In order to guarantee the mobile stability of refrigerant vapour in heat-transfer pipe, can be by hydraulic diameter and pipe 102(or the pipe 103 of heat-transfer pipe 101) diameter ratio example regulate, in the utility model, the two ratio is (0.5～0.9): 1.
Operation principle: refrigerant liquid enters from shell side import 6, flows out from shell side outlet 7, and refrigerant vapour enters from tube side import 8, from tube side outlet 9, flows out, and realizes pure counter-current flow heat exchange.By formula Q=KA Δ t
m(wherein Q is thermic load, and K is overall heat-transfer coefficient, the total heat conduction area that A is economizer, Δ t
mfor carrying out the refrigerant liquid of heat exchange and the mean temperature difference between refrigerant vapour) known, adopt the mode of pure counter-current flow heat exchange, heat exchange availability significantly improves.Meanwhile, shell-side pressure drop declines to a great extent.The inside and outside special screw type passage of heat exchanger tube 10 pipe, makes fluid in flow process, produce obviously rotation, has strengthened the less turbulence of fluid, has effectively strengthened heat exchange.Heat exchanger 10 pipes, shell side space size can regulate by the flattening ratio of heat exchanger tube, and the flow velocity of shell journey both sides refrigerant fluid is mated more, improve heat exchange efficiency, reduce economizer volume.
Above-listed detailed description is for the illustrating of the utility model possible embodiments, and this embodiment is not in order to limit the scope of the claims of the present utility model, does not allly depart from the equivalence that the utility model does and implements or change, all should be contained in the scope of the claims of this case.
Claims (10)
1. heat-transfer pipe compact arrangement economizer, it is characterized in that, it comprises housing (1), the two ends of described housing (1) are respectively by the first tube sheet (2) and the second tube sheet (3) sealing, form an accommodation space, a plurality of heat exchanger tubes (10) are installed in this housing (1), the outside of the first tube sheet (2) and the second tube sheet (3) is fixedly connected with respectively one first end socket (4) and the second end socket (5), one end of described heat exchanger tube (10) is connected with the tube side import (8) being fixedly connected on this first end socket (4) by the first end socket (4), its other end is connected with the tube side outlet (9) being fixedly connected with on this second end socket (5) by the second end socket (5), described housing (1) upper, lower both sides are fixedly connected with respectively a shell side import (6) being connected with accommodation space and shell side outlet (7), wherein, shell side import (6) is close to the second tube sheet (3), shell side outlet (7) is close to the first tube sheet (2), the first pipe (102) and the second pipe (103) that described heat exchanger tube (10) comprises heat-transfer pipe (101) and is connected in this heat-transfer pipe (101) two ends, described the first pipe (102), heat-transfer pipe (101) and the second pipe (103) are one-body molded, wherein, the first pipe (102) is fixed on the first tube sheet (2), the second pipe (103) is fixed on the second tube sheet (3), described the first pipe (102), the section girth of heat-transfer pipe (101) and the second pipe (103) all equates, adjacent heat exchange tubes (10) realizes some contact to form self supporting structure by the boss on heat-transfer pipe (101), between adjacent two contact points of adjacent heat exchange tubes (10), corresponding formation gap to form netted passage in accommodation space.
2. heat-transfer pipe compact arrangement economizer according to claim 1, it is characterized in that, described heat-transfer pipe (101) is helically twisted three leaf pipes, the cross section of described helically twisted three leaf pipes is tri-lobed structure, the closed curve that described tri-lobed structure is become to be cross-linked to form with three circular arcs (1012) by three semiellipses (1011), wherein, the summit of three circular arcs (1012) is positioned on the inscribed circle (11) of this tri-lobed structure, and three summit to formed angles of inscribed circle (11) circle center line connecting are 120 °, adjacent heat exchange tubes (10) is in contact with one another to form self supporting structure by semiellipse (1011), the corresponding formation of circular arc (1012) gap of adjacent heat exchange tubes (10) to form netted passage in accommodation space.
3. heat-transfer pipe compact arrangement economizer according to claim 2, is characterized in that, described the first pipe (102), the second pipe (103) weld respectively or expanded joint on the first tube sheet (2), the second tube sheet (3).
4. heat-transfer pipe compact arrangement economizer according to claim 2, is characterized in that, described heat exchanger tube (10) is copper pipe.
5. heat-transfer pipe compact arrangement economizer according to claim 4, is characterized in that, the outer surface of described copper pipe is provided with fin reinforcing structure.
6. heat-transfer pipe compact arrangement economizer according to claim 4, is characterized in that, described heat-transfer pipe (101) is processed through cold rolling by smooth pipe.
7. heat-transfer pipe compact arrangement economizer according to claim 1, is characterized in that, described heat exchanger tube (10), housing (1), the first end socket (4), the second end socket (5) carry out heat dip zinc treating.
8. heat-transfer pipe compact arrangement economizer according to claim 2, is characterized in that, the radius ratio of described inscribed circle (11) and circular arc (1012) is (0.2～2): 1.
9. according to the heat-transfer pipe compact arrangement economizer described in claim 2 or 8, it is characterized in that, the ratio of the radius of the helical pitch of described heat-transfer pipe (101) and circular arc (1012) is (10～100): 1.
10. heat-transfer pipe compact arrangement economizer according to claim 9, is characterized in that, the diameter ratio example of the hydraulic diameter of described heat-transfer pipe (101) and the first pipe (102) is (0.5～0.9): 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112435.0U CN203758321U (en) | 2014-03-12 | 2014-03-12 | Heat transfer tube compact arrangement economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112435.0U CN203758321U (en) | 2014-03-12 | 2014-03-12 | Heat transfer tube compact arrangement economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758321U true CN203758321U (en) | 2014-08-06 |
Family
ID=51253580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420112435.0U Expired - Lifetime CN203758321U (en) | 2014-03-12 | 2014-03-12 | Heat transfer tube compact arrangement economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203758321U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913546A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院广州能源研究所 | Pure countercurrent compact type pipe folding economizer |
| CN110530188A (en) * | 2019-06-24 | 2019-12-03 | 浙江久立特材科技股份有限公司 | The pipe fitting of heat exchanger |
| EP3745071A1 (en) * | 2019-05-31 | 2020-12-02 | Manoir Pitres | Tube comprising at least one twisted segment with elliptic or lobed section for a steam cracking furnace |
-
2014
- 2014-03-12 CN CN201420112435.0U patent/CN203758321U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913546A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院广州能源研究所 | Pure countercurrent compact type pipe folding economizer |
| EP3745071A1 (en) * | 2019-05-31 | 2020-12-02 | Manoir Pitres | Tube comprising at least one twisted segment with elliptic or lobed section for a steam cracking furnace |
| FR3096766A1 (en) * | 2019-05-31 | 2020-12-04 | Manoir Pitres | tube comprising at least one twisted segment with elliptical or lobed section for a steam cracking furnace |
| US11542440B2 (en) | 2019-05-31 | 2023-01-03 | Centre National De La Recherche Scientifique | Tube for a steam cracking furnace having a segment with an elliptical or lobed cross section |
| CN110530188A (en) * | 2019-06-24 | 2019-12-03 | 浙江久立特材科技股份有限公司 | The pipe fitting of heat exchanger |
| CN110530188B (en) * | 2019-06-24 | 2021-07-23 | 浙江久立特材科技股份有限公司 | Pipe fitting of heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Guangzhou City, Guangdong province 510640 energy road No. 2 Tianhe District Wushan Patentee after: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES Patentee after: Guangdong Henderson Metal Co.,Ltd. Address before: Guangzhou City, Guangdong province 510640 energy road No. 2 Tianhe District Wushan Patentee before: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES Patentee before: Guangdong Hangji Metal Product Industrial Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |