CN106288539A - A kind of idle call tubular type subcooler - Google Patents
A kind of idle call tubular type subcooler Download PDFInfo
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- CN106288539A CN106288539A CN201510282659.5A CN201510282659A CN106288539A CN 106288539 A CN106288539 A CN 106288539A CN 201510282659 A CN201510282659 A CN 201510282659A CN 106288539 A CN106288539 A CN 106288539A
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- burr
- inner tube
- tubular type
- tube
- subcooler
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Abstract
A kind of idle call tubular type subcooler, including inner tube and outer tube, inner tube is positioned in the inner chamber of outer tube, and both are socketed formation bimetallic tube, is at least partly coated with a plurality of burr at inner tube outer surface, and the bottom of adjacent two burrs has overlapping part.This tubular type subcooler by the burr structure that overlaps mutually, is accelerated the flowing velocity of fluid, is increased heat exchange area, makes heat exchange abundant and heat exchange efficiency is high, and this tubular type subcooler volume is little, easy for installation simultaneously.
Description
Technical field
The present invention relates to air-conditioning equipment field, particularly relate to a kind of idle call tubular type subcooler.
Background technology
Refrigeration industry is one of big power consumption industry in national economy, and the energy-conservation of refrigerating plant also becomes country's joint
Important step in energy emission reduction work, is also a pendulum key subjects in face of refrigeration industry staff.
Condensed saturated liquid is cooled down by subcooler again so that it is temperature is less than satisfying under condensing pressure
And temperature, it is supercool.The temperature of liquid before supercool with supercool after temperature compared with, difference is
Degree of supercooling.Before the refrigerating capacity of refrigeration system, with throttling, the degree of supercooling of coolant has much relations.Degree of supercooling is more
Greatly, the specific refrigerating effect of kind of refrigeration cycle is the biggest, and the cold medium flux of expansion valve is the biggest, thus saves energy
Source.
In relatively large refrigeration system, in order to make the refrigerant liquid temperature of entrance choke valve reduce,
Reduce throttling time or throttling after produce flash gas, properly increase refrigerating efficiency, in technological design
Install additional after reservoir and be specifically used to supercool equipment subcooler.Its structural shape be bushing type,
Fountain etc., principle is to utilize the cooling water lower than condensed saturated liquid temperature again to cool down, one
As than reducing the temperature (i.e. degree of supercooling is 3～5 degree) of 3～5 degree before cooling again.
Subcooler of the prior art is usually bundle pipes, uses double pipe that condensed fluid and low temperature are returned liquid and exists
Reverse flow in supercooling tube, in the prior art, this bundle pipes is basic dual smooth pipe, volume
Greatly, heat transfer efficiency is low, and heat exchange is insufficient.
Chinese patent literature CN 203297778, discloses a kind of multiple tube for air conditioning system heat exchange
Structure, as it is shown in figure 1, it mainly includes composite pipe body, composite pipe body is socketed to form by inner and outer tubes,
Arranging projection at the inwall of outer tube, and outer wall inwall forms a plurality of lobe, thus clearance inner and outer pipes is multiple
Close, allow them carry out heat exchange each other, but, the multiple tube of this kind of structure, although relatively add and change
The thermal efficiency, but, in heat transfer process, the flowing velocity of fluid is low, and heat exchange area is little, and heat exchange is imitated
Fruit is still unable to reach optimal.
Therefore, we need that a kind of volume is little, fluid-flow rate is fast, heat exchange area is big, heat exchange is abundant badly,
The subcooler that heat exchange efficiency is high.
Summary of the invention
In view of this, the present invention proposes a kind of idle call tubular type subcooler, including inner tube and outer tube, interior
Tube outer surface all covers fish scale-shaped burr except the part of inner pipe end, and the bottom of adjacent two burrs has
Overlapping part, inner tube outer surface has spiral groove simultaneously, and this tubular type subcooler volume is little, fluid stream
It is dynamic that speed is fast, heat exchange area is big, heat exchange is abundant, heat exchange efficiency is high.
A kind of idle call tubular type subcooler proposed according to the purpose of the present invention, including inner tube and outer tube, institute
Stating inner tube hollow, inner tube is positioned in the inner chamber of outer tube, and inner tube forms bimetallic tube, its feature with outer tube socket
It is: described inner tube outer surface is at least partly coated with a plurality of burr, the bottom of adjacent two burrs
There is overlapping part.
Preferably, inside said inner tube, there is smooth surface.
Preferably, described outer tube formation inner pipe end is stretched out at least one end of said inner tube.
Preferably, said inner tube outer surface is all coated with burr except the part of inner pipe end.
Preferably, described burr is fish scale-shaped.
Preferably, said inner tube outer surface has spiral groove, inside described outer tube and inner tube outer surface
Between spiral groove formed outside passages, internal tube formed inside passages.
Preferably, described burr height is 1.45～1.60mm, and the height of burr overlapping part is 0.5mm,
The width of single burr is 1.1～1.25mm, and the spacing at adjacent burr tip is 0.97～1.07mm.
Preferably, the height of described burr is 1.55mm, and the height of burr overlapping part is 0.5mm, single
The width of individual burr is 1.2mm, and the spacing at adjacent burr tip is 1.02mm.
Compared with prior art, the present invention has a following technical advantage:
This tubular type subcooler, its inner tube forms bimetallic tube with outer tube socket, is coated with multiple at inner tube outer surface
Several burrs, the bottom of adjacent two burrs has overlapping part, thus possesses more under same volume
Burr, the volume of subcooler can also do less, and heat exchange simultaneously is abundant, heat transfer effect more preferably, and peace
Dress is convenient.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the composite pipe structure in prior art for air conditioning system heat exchange
Fig. 2 is the overall structure schematic diagram of tubular type subcooler of the present invention
Fig. 3 is tubular type subcooler of the present invention horizontal section view burr structure schematic diagram
Fig. 4 is tubular type subcooler burr structure overall appearance figure of the present invention
Fig. 5 is tubular type subcooler inner tube outer side spiral groove schematic diagram of the present invention
The reference related in accompanying drawing and ingredient explanation: 1. inner tube；2. outer tube；3. burr；4. spiral shell
Rotation shape groove；5. outside passages；6. inside passages.
Detailed description of the invention
As described in the background art, existing subcooler, volume is big, and in heat transfer process, stream
The flowing velocity of body is low, and heat exchange area is little, and heat transfer effect is unable to reach optimum.
Below, the concrete technical scheme of the present invention will be described in detail.
Fig. 2 is the overall structure schematic diagram of tubular type subcooler of the present invention, and Fig. 3 is tubular type subcooler of the present invention
Fish scale-shaped burr structure schematic diagram, Fig. 4 is tubular type subcooler burr structure overall appearance figure of the present invention, Fig. 5
It it is tubular type subcooler inner tube outer side spiral groove schematic diagram of the present invention.Please also refer to Fig. 2-5, this tubular type
Subcooler, including inner tube 1 and outer tube 2, inner tube 1 hollow, inner tube 1 is positioned in the inner chamber of outer tube 2, interior
Pipe 1 and outer tube 2 socket form bimetallic tube, and the form of inner and outer pipes socket, simple in construction, volume is little.With
Time, inner tube 1 outer surface is at least partly coated with a plurality of burr 3, and the bottom of adjacent two burrs 3 has
Overlapping part, thus changes the flow regime of fluid so that fluid just can reach under the lowest flow velocity
To the state of turbulent flow, fluid is each intermolecular has contact and heat exchange, and the area of heat exchange is big, heat exchange
More abundant, heat exchange efficiency and speed are greatly improved.
The inner side of inner tube 1 is smooth surface, inner tube 1 be internally formed smooth inside passages 6, it is adaptable to
The flowing of low temperature coolant.At least one end of inner tube 1 is stretched out outer tube 2 and is formed inner pipe end, and inner tube 1 is with outer
Pipe 2 with one heart, inner tube 1 and outer tube 2 by welding or other modes are fixed together, inner tube 1 and
Outer tube 2 can be selected for the metal or alloy such as copper, aluminum, ferrum, or the material such as nonmetal, to ensure its stiffness.
Further, inner tube 1 outer surface is all coated with burr 3 except the part of inner pipe end, and burr 3 is fish scale
Shape, thus under identical subcooler volume, burr is more, more promotes the flowing of fluid, changes
Hot side is long-pending to be increased, and heat transfer effect is more preferable.
Outer surface in inner tube 1 has a spiral groove 4, the outer surface of the inner side of outer tube 2 and inner tube 1 it
Between spiral groove 4 form outside passages 5, because possessing spiral groove 4 so that fluid-flow rate
Hurry up, heat exchange area is big, heat exchange is abundant, in burr and the inner tube 1 outer surface spiral type of inner tube 1 outer surface
Under the dual function of groove 4, the heat exchange efficiency of subcooler significantly improves.
Referring to Fig. 3～Fig. 4, burr structure 3 is covered in except the inner tube outer surface part of inner tube 1 end,
In fish scale-shaped, the bottom of adjacent two burrs 3 has overlapping part, and the height of burr 3 is h1,1.45mm
≤ h1≤1.60mm, preferably 1.55mm, the height of burr 3 overlapping part is h2, preferably 0.5mm,
The width of single burr is b, 1.1mm≤b≤1.25mm, preferably 1.2mm, adjacent burr 3 tip
Spacing is c, 0.97mm≤c≤1.07mm, preferably 1.02mm.In the present invention, at inner tube 1 outer surface
At least partly being coated with a plurality of burr 3, the bottom of adjacent two burrs 3 has overlapping part, further
Ground, all covers burr 3 in the part except inner pipe end, and burr 3 uses fish scale form, overlaps one by one,
The parameters such as the height of burr 3, width have been done optimized selection simultaneously, employing with fish scale-shaped hair
The subcooler of thorn 3, changes the flow regime of fluid so that fluid just can reach under the lowest flow velocity
State to turbulent flow.Under advection state, only fluid extexine first carries out heat exchange, and fluid reaches turbulent flow
After state, molecule becomes disordered state, more active, each intermolecular have contact and heat exchange, increase
The area of heat exchange, heat exchange is more abundant, and heat exchange efficiency and speed is greatly improved.
Refer to Fig. 5, there is outside tubular type subcooler inner tube 1 some spiral grooves 4, form guideway
Footpath, high temperature refrigerant flows into from outer tube, and because of drag effect, fluid can stream along spiral groove 4 rotating ring
Dynamic, thus the motion path of fluid lengthens, flowing velocity is accelerated, heat exchange is more abundant.
The tubular type subcooler of the present invention, is arranged in air-conditioning in the pipe assembly crossing cold loop, installs in loop
There is expansion valve, be used for controlling the flow of cold-producing medium, operationally, with interior inside tubular type subcooler outer tube 2
Spiral groove 4 between pipe 1 outer surface forms outside passages 5, and the smooth runner of interior pipe internal surface is formed
Inside passages 6, low temperature coolant flows into from inner tube, and along smooth flow passage, high temperature refrigerant is from outer tube 2
Flow into, the outside passages 5 that the spiral groove 4 inside outer tube 2 and between inner tube 1 outer surface is formed
Middle flowing, thus reaches heat exchange effect.
The tubular type subcooler of the present invention and common bundle pipes subcooler have carried out Experimental comparison, experimental data pair
As follows than table:
From above experimental data it can be seen that under same expansion valve opening, the tubular type of the present invention is supercool
The degree of supercooling of device is greatly promoted relative to the degree of supercooling of common bundle pipes subcooler.If expansion valve opening is 480
Time, the degree of supercooling of the efficient tube type subcooler of the present invention improves [(15.26-13.89)/13.8] %, and i.e. 9.86%,
Heat exchange efficiency is obviously improved, and alleviates energy consumption.
The tubular type subcooler of the present invention, including inner tube 1 and outer tube 2, inner tube 1 is formed double with outer tube 2 socket
Layer pipe, is at least partly coated with a plurality of burr 3 at inner tube 1 outer surface simultaneously, adjacent two burrs 3
Bottom there is overlapping part, further, inner tube 1 outer surface has spiral groove 4, low temperature coolant from
Inner tube flows into, and flows along smooth pipeline, and high temperature refrigerant flows into from outer tube, with inner tube 1 inside outer tube 2
The spiral groove 4 formed between outer surface flows, at the common work of spiral groove 4 with burr 3
Under with so that the motion path of fluid lengthens, flowing velocity is accelerated, heat exchange is more abundant, heat exchange efficiency
Be greatly improved with speed, and each intermolecular have contact and heat exchange, increase heat exchange area.This
The subcooler of invention, volume is little, lightweight, so that it may reaches and primary bright identical effect, both saved
Installing space, also reduces processing cost.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
Seeing, generic principles defined herein can be in the situation without departing from the spirit or scope of the present invention
Under, realize in other embodiments.Therefore, the present invention be not intended to be limited to shown in this article this
A little embodiments, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (8)
1. an idle call tubular type subcooler, including inner tube and outer tube, said inner tube hollow, inner tube is positioned at
In the inner chamber of outer tube, inner tube forms bimetallic tube with outer tube socket, it is characterised in that: described inner tube appearance
Face is at least partly coated with a plurality of burr, and the bottom of adjacent two burrs has overlapping part.
2. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: said inner tube
Inner side has smooth surface.
3. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: said inner tube
At least one end stretch out described outer tube and form inner pipe end.
4. a kind of idle call tubular type subcooler as claimed in claim 3, it is characterised in that: said inner tube
Outer surface is all coated with burr except the part of inner pipe end.
5. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: described hair
Thorn is fish scale-shaped.
6. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: said inner tube
Outer surface has spiral groove, and the spiral groove inside described outer tube and between inner tube outer surface is formed
Outside passages, internal tube forms inside passages.
7. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: described burr
Being highly 1.45～1.60mm, the height of burr overlapping part is 0.5mm, and the width of single burr is
1.1～1.25mm, the spacing at adjacent burr tip is 0.97～1.07mm.
8. a kind of idle call tubular type subcooler as claimed in claim 1, it is characterised in that: described burr
Height be 1.55mm, the height of burr overlapping part is 0.5mm, and the width of single burr is 1.2mm,
The spacing at adjacent burr tip is 1.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282659.5A CN106288539A (en) | 2015-05-28 | 2015-05-28 | A kind of idle call tubular type subcooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282659.5A CN106288539A (en) | 2015-05-28 | 2015-05-28 | A kind of idle call tubular type subcooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106288539A true CN106288539A (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510282659.5A Pending CN106288539A (en) | 2015-05-28 | 2015-05-28 | A kind of idle call tubular type subcooler |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0713072A2 (en) * | 1994-11-17 | 1996-05-22 | Carrier Corporation | Heat transfer tube |
| CN2289198Y (en) * | 1994-08-29 | 1998-08-26 | 刘焯群 | Cutting shaping scaly heat exchanging tubular element |
| EP1137905A2 (en) * | 1998-11-02 | 2001-10-04 | Outokumpu Copper Franklin, Inc. | Polyhedral array heat transfer tube |
| CN201145509Y (en) * | 2007-12-11 | 2008-11-05 | 华南理工大学 | Inner cross spiral outer three-dimensional diamond-shaped rib double-side reinforced heat transfer pipe |
| CN202993942U (en) * | 2012-11-21 | 2013-06-12 | 王真勇 | Heat transfer tube with external three-dimensional fins |
| KR101415738B1 (en) * | 2013-08-07 | 2014-07-09 | 주식회사 두원공조 | Liquid supercooling system |
| JP2014142086A (en) * | 2013-01-22 | 2014-08-07 | Denso Corp | Heat exchanger |
-
2015
- 2015-05-28 CN CN201510282659.5A patent/CN106288539A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289198Y (en) * | 1994-08-29 | 1998-08-26 | 刘焯群 | Cutting shaping scaly heat exchanging tubular element |
| EP0713072A2 (en) * | 1994-11-17 | 1996-05-22 | Carrier Corporation | Heat transfer tube |
| EP1137905A2 (en) * | 1998-11-02 | 2001-10-04 | Outokumpu Copper Franklin, Inc. | Polyhedral array heat transfer tube |
| CN201145509Y (en) * | 2007-12-11 | 2008-11-05 | 华南理工大学 | Inner cross spiral outer three-dimensional diamond-shaped rib double-side reinforced heat transfer pipe |
| CN202993942U (en) * | 2012-11-21 | 2013-06-12 | 王真勇 | Heat transfer tube with external three-dimensional fins |
| JP2014142086A (en) * | 2013-01-22 | 2014-08-07 | Denso Corp | Heat exchanger |
| KR101415738B1 (en) * | 2013-08-07 | 2014-07-09 | 주식회사 두원공조 | Liquid supercooling system |
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Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |