CN104165533A - Pipe distribution structure suitable for phase change heat exchanger - Google Patents
Pipe distribution structure suitable for phase change heat exchanger Download PDFInfo
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- CN104165533A CN104165533A CN201410353061.6A CN201410353061A CN104165533A CN 104165533 A CN104165533 A CN 104165533A CN 201410353061 A CN201410353061 A CN 201410353061A CN 104165533 A CN104165533 A CN 104165533A
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- cloth area
- under control
- area under
- whole cloth
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Abstract
The invention belongs to the technical field of heat exchanger pipe distribution, and particularly relates to a pipe distribution structure suitable for a phase-change heat exchanger. This stringing structure includes the casing, is provided with the whole cloth area in district of gaseous phase condensation and/or the whole cloth area in district of liquid phase boiling in the casing, all is equipped with in the whole cloth area in district of gaseous phase condensation and/or the whole cloth area in district of liquid phase boiling and is used for separating into the whole cloth area in district, the air flue that communicates and vertically and horizontally staggered each other of a plurality of local cloth areas. The air passages comprise a plurality of transverse air passages, longitudinal air passages and oblique air passages. The invention introduces the air passage design, namely, a plurality of cross air passages, longitudinal air passages and inclined air passages which are communicated with each other and criss-cross are arranged in the whole cloth tube area, thereby effectively improving the gas phase escape rate among tube bundles, obviously improving the gas flow condition and the heat transfer working condition among the tube bundles, effectively improving the heat transfer efficiency under the condition of not increasing the tube diameter of equipment, and being easy to apply, popularize and realize the fine design.
Description
Technical field
The invention belongs to heat exchanger stringing technical field, be specifically related to a kind of pipe laying structure being applicable to containing phase-change heat-exchanger.
Background technology
Phase-change heat transfer in industry cold exchange device occurs between gas phase and liquid phase, because the thermodynamic properties of medium under two kinds of phases exists greatest differences, when undergoing phase transition, can cause the sharply variation of local velocity, and then bring the violent disturbance in flow field, especially when equipment is subject to certain size restrictions, whole heat transfer property and the mechanical performance of heat exchanger all can be brought adverse influence.
From two kinds, change direction to be mutually illustrated respectively below.
When heat exchanger applications is during in liquid phase boiling heat transfer operating mode, now heat exchanger tube is infiltrated on whole liquid Space, and liquid phase is heated and then produces phase transformation, and this heat exchange belongs to bulk container nucleate boiling.This phase transformation has caused the complex flowfield of phase mutual interference between gas-liquid two-phase, greatly reduces interbank mobile stability.Owing to there is no enough large space between tube bank and housing as the gas phase rising passway allowing, have compared with the bubble of low thermal conductivity and will gather interbank, and form the gas phase thermal insulation layer of larger thermal resistance, weakened the whole heat transfer property of tube bank; Meanwhile, along with the carrying out of flowing, gas phase is constantly gathered and is broken, and has caused the high frequency time of local pressure to change, and under the impact of secondary vortex street and Secondary Flow, tube bank is formed and is collided, the destruction that will cause tube bank of a specified duration.
When heat exchanger applications is during in vapor condensation heat-exchanging state, gas phase enters heat exchange between tube bank by housing below, condensed liquid phase is subject to the retardance of ascending air and can not discharges in time in landing process, the liquid phase that simultaneously condenses in tube bank bottom has also hindered gas phase and has entered heat exchange working space, cause heat exchange area to be not fully utilized, reduced whole heat transfer efficiency.
For the stringing design containing phase-change heat-exchanger, substantially follow traditional stringing mode at present, take equilateral triangle and square stringing as main, yet this stringing mode does not solve gas phase makes heat transfer efficiency reduce problem interbank gathering.
Summary of the invention
For solving the deficiency of above-mentioned prior art, the invention provides a kind of pipe laying structure being applicable to containing phase-change heat-exchanger, this pipe laying structure has solved gas phase effectively in the interbank problem of gathering, gas phase and liquid phase can be flowed swimmingly between tube bank, thereby improved heat transfer efficiency significantly.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of pipe laying structure being applicable to containing phase-change heat-exchanger, comprise housing, in described housing, be provided with the whole cloth area under control of vapor condensation and/or the liquid phase whole cloth area under control of seething with excitement, the whole cloth area under control of described vapor condensation and/or liquid phase seethe with excitement be equipped with in whole cloth area under control for whole stringing is distinguished be divided into some local cloth area under control, interconnect and crisscross air flue.
Meanwhile, the present invention can also be able to further realization by following technical measures:
Preferably, described air flue comprises some horizontal flues, vertical air channel and oblique air flue.
Preferably, in described housing, be provided with the whole cloth area under control of vapor condensation and the liquid phase whole cloth area under control of seething with excitement, the whole cloth of described vapor condensation area under control is erected at the upper area of enclosure interior by support, the described liquid phase whole cloth area under control of seething with excitement is arranged on the below in the whole cloth of vapor condensation area under control.
Principle of the present invention and beneficial effect are as follows:
1), the pipe laying structure in the present invention has been broken the thinking of the whole unified stringing in traditional tube sheet stringing region, the present invention is on the basis of tubular heat exchanger tradition pipe laying structure, introduced air flue design, in whole stringing region, some horizontal flues, vertical air channel and the tiltedly combination of air flue are set.Horizontal flue, vertical air channel and oblique air flue interconnect and are crisscross, effectively avoid and even stopped the problem generation of gas phase channel " short circuit ", have also significantly improved interbank gas flow situation simultaneously.
Along with the introducing of air flue, whole cloth area under control is divided into some local cloth area under control.The shape in the local cloth area under control forming thus comprises but is not limited to regular geometry.In each local cloth area under control, all can carry out independently stringing design according to traditional stringing mode, the pipe laying structure that is each local cloth area under control can be according to process operation situation stringing, but being not limited to same tradition pipe laying structure, is also that the pipe laying structure in each local cloth area under control needn't be positive triangle or square pipe laying structure simultaneously.
The present invention is applicable equally for comprise two kinds of monomer heat transmission equipments of one of changing direction mutually or comprise two kinds of mutually nyctitropic combination heat-exchanger rigs simultaneously, is particularly useful for the stringing that the confined space includes phase-change heat-exchanger.
2), the pipe laying structure in the present invention can effectively improve phase change fluid in the interchannel mobile and heat transfer of tube bank, due to the effective gas-phase escaping of the outer low thermal conductivity of accelerating tube of the design of air flue, improve gas-phase escaping speed, thereby avoided because medium condenses and form the low heat transfer performance operating mode of taking as the leading factor with heat conduction, affecting heat transfer property on heat exchange surface.
3), this pipe laying structure is particularly useful for the size-constrained phase-change heat-exchanger that contains.The introducing of air flue can improve the heat transfer conditions containing phase-change heat-exchanger, and the extra air flue area increasing sacrifice heat exchange area within reason, not increasing on the basis of equipment barrel dliameter, improved heat transfer efficiency greatly.
4), this pipe laying structure can be for there being the heat exchange surface of local special process requirement to carry out special configuration.Distribution design by air flue can meet some special operation condition heat transfer demand, for flow field and optimizing temperature field provide design incision.
5), this pipe laying structure is easy to realize and promote.The present invention can carry out air flue Combination Design flexibly for different process conditions; The stringing in each area under control that distributes also can independently carry out, and can realize by this design that becomes more meticulous that heat exchanger tube is arranged.
Accompanying drawing explanation
Fig. 1 is the pipe laying structure schematic diagram of the present invention in liquid phase boiling heat exchanger.
Fig. 2 is the pipe laying structure schematic diagram of the present invention in vapor condensation heat exchanger.
Fig. 3 is the pipe laying structure schematic diagram of the present invention in the same space combined phasetransform heat exchanger.
The implication of the Reference numeral in figure is as follows:
10-housing
The whole cloth of 20A-vapor condensation area under control 20B-liquid phase whole cloth area under control of seething with excitement
21-horizontal flue, 22-vertical air channel 23-oblique air flue 24-local cloth area under control
30-support
The specific embodiment
This pipe laying structure both can be applied to separately liquid phase boiling heat exchanger or vapor condensation heat exchanger, also can be applicable to comprise two kinds of mutually nyctitropic combination heat-exchanger rigs simultaneously, i.e. the same space combined phasetransform (evaporation-condensation) heat exchanger.Below in conjunction with the accompanying drawing in the embodiment of the present invention, the pipe laying structure in the present invention is clearly and completely described.
Embodiment 1
Figure 1 shows that liquid phase boiling heat exchanger, now heat-exchanging tube bundle integral body is all infiltrated on liquid Space.
As shown in Figure 1, in the whole cloth area under control 20A of vapor condensation, introduce horizontal flue 21, vertical air channel 22 and oblique air flue 23, the whole cloth area under control 20A of vapor condensation is divided into some local cloth area under control 24 thus, and the regional in each local cloth area under control 24 all can carry out stringing design independently according to traditional stringing mode.
Embodiment 2
Figure 2 shows that vapor condensation heat exchanger.
As shown in Figure 2, liquid phase is seethed with excitement in whole cloth area under control 20B and is provided with some horizontal flues 21 and vertical air channel 22, thereby liquid phase is seethed with excitement, whole cloth area under control 20B is divided into some local cloth area under control 24, and the regional in each local cloth area under control 24 all can carry out stringing design independently according to traditional stringing mode.
Embodiment 3
Figure 3 shows that and comprise two mutually nyctitropic the same space combined phasetransform heat exchangers.
As shown in Figure 3, the whole cloth area under control 20A of vapor condensation is erected at the upper area of housing 10 inside by support 30, and the liquid phase whole cloth area under control 20B that seethes with excitement is arranged on the below of the whole cloth area under control 20A of vapor condensation.
In the seethe with excitement inside of whole cloth area under control 20B of the whole cloth area under control 20A of vapor condensation, liquid phase, introduce horizontal flue 21, vertical air channel 22 and oblique air flue 23 respectively, thereby whole stringing zoning is divided into some local cloth area under control 24, and the regional in each local cloth area under control 24 all can carry out stringing design independently according to traditional stringing mode.
Claims (3)
1. the pipe laying structure being applicable to containing phase-change heat-exchanger, comprise housing (10), it is characterized in that: in described housing (10), be provided with the whole cloth area under control (20A) of vapor condensation and/or the liquid phase whole cloth area under control (20B) of seething with excitement, the whole cloth area under control (20A) of described vapor condensation and/or liquid phase seethe with excitement be equipped with in whole cloth area under control (20B) for whole stringing is distinguished be divided into some local cloth area under control, interconnect and crisscross air flue.
2. the pipe laying structure being applicable to containing phase-change heat-exchanger according to claim 1, is characterized in that: described air flue comprises some horizontal flues (21), vertical air channel (22) and oblique air flue (23).
3. the pipe laying structure being applicable to containing phase-change heat-exchanger according to claim 1, it is characterized in that: in described housing (10), be provided with the whole cloth area under control (20A) of vapor condensation and the liquid phase whole cloth area under control (20B) of seething with excitement, the whole cloth area under control of described vapor condensation (20A) is erected at the inner upper area of housing (10) by support (30), and the described liquid phase whole cloth area under control (20B) of seething with excitement is arranged on the below in vapor condensation integral body cloth area under control (20A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353061.6A CN104165533B (en) | 2014-07-23 | 2014-07-23 | Pipe distribution structure suitable for phase change heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353061.6A CN104165533B (en) | 2014-07-23 | 2014-07-23 | Pipe distribution structure suitable for phase change heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165533A true CN104165533A (en) | 2014-11-26 |
| CN104165533B CN104165533B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353061.6A Active CN104165533B (en) | 2014-07-23 | 2014-07-23 | Pipe distribution structure suitable for phase change heat exchanger |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334201A (en) * | 1995-06-07 | 1996-12-17 | Mitsubishi Heavy Ind Ltd | Steam generator |
| US6026889A (en) * | 1998-06-18 | 2000-02-22 | Joseph Oat Corporation | Single shell boiler |
| CN2591529Y (en) * | 2002-12-25 | 2003-12-10 | 财团法人工业技术研究院 | Vapour/condensing heat exchanger for absorbing refrigerator |
| JP2004092928A (en) * | 2002-08-29 | 2004-03-25 | Mitsubishi Heavy Ind Ltd | Condenser and refrigerating machine |
| CN1788835A (en) * | 2004-12-14 | 2006-06-21 | 杭州林达化工技术工程有限公司 | Transverse pipe type heat transfer reaction unit |
| JP2007003101A (en) * | 2005-06-24 | 2007-01-11 | Hitachi Ltd | Shell-and-tube type heat exchanger |
| CN102080901A (en) * | 2010-12-13 | 2011-06-01 | 上海环球制冷设备有限公司 | Integrated condensing dry evaporator device and use method thereof |
| CN202501775U (en) * | 2012-03-20 | 2012-10-24 | 谭正宏 | Quenching condenser |
| CN202928402U (en) * | 2012-09-29 | 2013-05-08 | 杭州赛富特设备有限公司 | Improved evaporator pipe distribution structure |
-
2014
- 2014-07-23 CN CN201410353061.6A patent/CN104165533B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334201A (en) * | 1995-06-07 | 1996-12-17 | Mitsubishi Heavy Ind Ltd | Steam generator |
| US6026889A (en) * | 1998-06-18 | 2000-02-22 | Joseph Oat Corporation | Single shell boiler |
| JP2004092928A (en) * | 2002-08-29 | 2004-03-25 | Mitsubishi Heavy Ind Ltd | Condenser and refrigerating machine |
| CN2591529Y (en) * | 2002-12-25 | 2003-12-10 | 财团法人工业技术研究院 | Vapour/condensing heat exchanger for absorbing refrigerator |
| CN1788835A (en) * | 2004-12-14 | 2006-06-21 | 杭州林达化工技术工程有限公司 | Transverse pipe type heat transfer reaction unit |
| JP2007003101A (en) * | 2005-06-24 | 2007-01-11 | Hitachi Ltd | Shell-and-tube type heat exchanger |
| CN102080901A (en) * | 2010-12-13 | 2011-06-01 | 上海环球制冷设备有限公司 | Integrated condensing dry evaporator device and use method thereof |
| CN202501775U (en) * | 2012-03-20 | 2012-10-24 | 谭正宏 | Quenching condenser |
| CN202928402U (en) * | 2012-09-29 | 2013-05-08 | 杭州赛富特设备有限公司 | Improved evaporator pipe distribution structure |
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| Publication number | Publication date |
|---|---|
| CN104165533B (en) | 2017-04-05 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |