CN107062952A - A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement - Google Patents
A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement Download PDFInfo
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- CN107062952A CN107062952A CN201710075732.0A CN201710075732A CN107062952A CN 107062952 A CN107062952 A CN 107062952A CN 201710075732 A CN201710075732 A CN 201710075732A CN 107062952 A CN107062952 A CN 107062952A
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- stabilising arrangement
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- phase flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0133—Auxiliary supports for elements for tubes or tube-assemblies formed by concentric strips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention provides a kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement, bag sets telescopic two phase flow stabilising arrangement on heat exchanger fluid inlet tube and/or outlet, the two phase flow stabilising arrangement includes core body, the core body includes multiple concentric tubes and fin, and the fin connects adjacent concentric tube.Passive two-phase flow stabilising arrangement of the present invention with vibration and noise reducing function can be in the case of independent of external impetus or power supply, two-phase fluid is separated into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, suppress the backflow of liquid phase, promote gas phase smooth outflow, play a part of regime flow, the effect with vibration and noise reducing.
Description
Technical field
The present invention relates to a kind of two-phase flow heat-exchanger rig and its stabilising arrangement, and in particular to one kind, which has, weakens flow duct
Road vibration, the two-phase flow stabilising arrangement of reduction noise level function.
Background technology
Two-phase flow and wild effect are universally present in heat-exchanger rig, scientific experiment device and the equipment of industrial product
In, for example fluid, which enters heat transmission equipment, can produce water hammer caused by space enlargement, be both that, because substantial amounts of produce, can also dislike
Change heat exchange.When the phase of two-phase working substance is not mixed uniformly and is discontinuously flowed, large-sized liquid group can occupy at high speed
Vapour group space, causes two-phase flow unstable, so that tempestuously impact device and pipeline, produces sharp pounding and noise, seriously
Ground threatens equipment operation safety.It is, towards forced circulation loop, to solve single-phase water mostly that existing water hammer, which eliminates or alleviated device,
Hammer problem, concentrates on water hammer-resistant check-valves industrial circle, such as a kind of " impeller type water hammer-resistant mute check valve " (patent No.：
ZL200910214544.7), there is provided the labyrinth such as radome fairing, baffle and spring, can not consider flow resistance factor, solve
The single-phase water hammer produced during closure of check ring.Multiphase flow rectifying device for example disclosed in CN101639374A again, wherein setting
Put multitube pipe, said structure is complicated, take material, cost height, therefore the need for being gradually not suitable with energy-conserving and environment-protective.
In view of the above-mentioned problems, the invention provides a kind of stable dress of the two phase flow of new heat-exchanger rig and its Novel structure
Put, so that the problem of solving above-mentioned.
The content of the invention
It is an object of the invention to provide a set of new heat-exchanger rig and two-phase flow stabilising arrangement, there is two in pipeline
When mutually flowing, weaken the vibration of pipeline, reduce noise level, while improving heat-exchange capacity.
To achieve these goals, technical scheme is as follows：
A kind of two-phase flow tube shell type heat exchanger, including housing, the housing two ends set end socket respectively, it is described at least one
Two phase flow fluid inlet tube is set on end socket, telescopic two phase flow stabilising arrangement, the two phase flow are set on fluid inlet tube
Stabilising arrangement includes core body, and the core body includes multiple concentric tubes and fin, and the fin connects adjacent concentric tube.
Preferably, setting intercommunicating pore on the concentric tube and fin.
A kind of telescopic two phase flow stabilising arrangement being arranged in Two-phase Flow Pipeline Transport, including core body, the core body include many
Individual concentric tube and fin, the fin connect adjacent concentric tube, so as to form multiple small flow channels between concentric tube and fin.
Preferably, setting intercommunicating pore on the concentric tube and fin.
Preferably, the distance between adjacent tubes are less and less from tube hub outwards.
Preferably, the less and less amplitude of the distance between adjacent tubes constantly increases from tube hub outwards.
Preferably, the sectional area of small flow channels meets following relationship：
AI, on≤AI, under (2)
In formula, Ai is the circulation area of i-th of small flow channels, and unit is mm2；N is small flow channels quantity；ηAFor area ratio, according to
Line size and mobility status, are obtained by optimization experiment, see empirical equation 3, ηA<1；A0For the circulation area of pipeline, unit is
mm2.Wherein, the mathematical meaning of formula (1) is that the sectional area summation of whole pipes is more than or equal to the η of pipeline sectionATimes；Formula (2) is
The sectional area of upper strata pipe is less than or equal to the sectional area of lower floor's pipe.
Foregoing stabilising arrangement is set in a kind of Two-phase Flow Pipeline Transport, the pipeline, and the stabilising arrangement is in pipeline
The arrangement at interval is taken, in compartment arrangement, length, the distance at interval of core meet following relationship：
Li≥Li,0 (4)
Xi≤Xi,0 (5)
In formula, LiFor the length of i-th of core body, unit is mm；Li,0For the minimum allowable length of i-th of core body, unit is
Mm, is obtained by testing, sees empirical equation 7；N is the quantity of core body；XiFor the distance at i-th of interval, unit is mm；XI, 0For
The permission ultimate range at i-th of interval, unit is mm, is obtained by testing, sees empirical equation 8；M is the quantity at interval；ηLFor
Length ratio, according to line size and mobility status, is obtained by optimization experiment, sees empirical equation 9, ηL≤ 1, wherein, formula (6)
Mathematical meaning is the η of duct length that is more than of length summation of whole core bodysLTimes.
A kind of two-phase flow tube shell type heat exchanger, including housing, the housing two ends set end socket respectively, it is described at least one
Two phase flow fluid inlet tube, the inlet porting pipe flange on fluid inlet tube, the entrance pipe flange and pipeline are set on end socket
Flange is connected, it is characterised in that to chuck cartridge type two phase flow stabilising arrangement, described two between entrance pipe flange and pipe flange
Mutually stream stabilising arrangement includes core body, and the core body includes multiple concentric tubes and fin, and the fin connects adjacent concentric tube.
Compared with prior art, it is of the invention to have the following advantages：
1) the passive two-phase flow stabilising arrangement with vibration and noise reducing function can be independent of external impetus or power supply
In the case of, two-phase fluid is separated into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, is pressed down
The backflow of liquid phase processed, promotes gas phase smooth outflow, plays a part of regime flow, the effect with vibration and noise reducing.
2) present invention is arranged in the inlet tube of two phase flow heat transfer device, gas phase can will be divided into minute bubbles, it is to avoid
The increase of gas phase, promotes gas phase smooth outflow, it is ensured that the gas phase entered in the heat exchanger tube of heat exchanger is uniform, enables to heat exchange equal
It is even, it is to avoid local temperature is too high or too low, so as to improve heat transfer effect.
3) core is the core component of passive two-phase flow stabilising arrangement, can separate the single big runner of pipeline
Into a number of small flow channels.Wherein, the sectional area of small flow channels meets formula (1) above, (2), (3), meets above-mentioned relation,
Advantageously ensure that and two-phase fluid is separated into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles
Effect.
4) telescopic core body is arranged in a combination by a number of concentric tube, using concentric tube and fin by sectional area compared with
Big annular meets the functional requirement of device by being further divided into the less fan-shaped runners of sectional area.Telescopic core body tool
The characteristics of having saving material.Some apertures set on the concentric tube and fin of telescopic core body, are conducive to further stablizing two
Mutually flow.
5) in compartment arrangement, length, the distance at interval of core meet formula (4), (5), (6), have
Regrouped beneficial to the minute bubbles and small liquid group prevented after segmentation, suppress the backflow of liquid phase, promote gas phase smooth outflow, improve steady
The action effect of constant flow.
6) for wafer type core body fixed form, pipeline external environment and interface are not influenceed, with dismount it is simple the characteristics of,
Both new device is can be suitably used for, plant modification is can be suitably used for again.
Brief description of the drawings
Fig. 1 is the structural representation of the two phase flow heat transfer device of the present invention；
Fig. 2 is the structural representation of the two phase flow stabilising arrangement of the present invention；
Fig. 3 two phase flow stabilising arrangement discontinuous arrangement schematic diagrames of the present invention；
Fig. 4 is two phase flow stabilising arrangement mounting means schematic diagram of the present invention.
Reference is as follows：Core body 1, pipeline 2, concentric tube 3, fin 4, housing 5, end socket 6,7, inlet tube 8, outlet 9,
Heat exchanger tube 10, small flow channels 11
Embodiment
The embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, being related to formula, "/" represents division, and "×", " * " represent multiplication.
The long measure for not having the parameter in specified otherwise, the application is mm, and square measure is mm2。
Fig. 2 illustrates a kind of telescopic two phase flow stabilising arrangement being arranged in Two-phase Flow Pipeline Transport, the stabilising arrangement bag
Core body 1 is included, the core body 1 is arranged in pipeline 2, the core body includes multiple concentric tubes 3 and fin 4, the fin 4 connects phase
Adjacent concentric tube 3, so as to form multiple small flow channels 11 between concentric tube and fin.
Above-mentioned two-phase flow stabilising arrangement can be in the case of independent of external impetus or power supply, by two-phase fluid point
From into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, suppresses the backflow of liquid phase, promotes gas phase
Smooth outflow, plays a part of regime flow, the effect with vibration and noise reducing.
Telescopic core body is arranged in a combination by a number of concentric tube, and two with many pipes of setting of prior art
Mutually stream core body contrast, using concentric tube and fin by the larger annular of sectional area by being further divided into the less fan of sectional area
Shape runner, meets the functional requirement of device.Telescopic core body has the characteristics of saving material.
Preferably, setting intercommunicating pore on the concentric tube and fin.
Some apertures set on the concentric tube 3 and fin 4 of telescopic core body 1.By setting aperture, it is ensured that adjacent
Runner interconnect, pressure that can be between uniform flow path so that the fluid of high pressure runner flows to low pressure, while can also be
Further separate liquid and gas while flow of fluid, be conducive to further stablizing two-phase flow.
Preferably, the distance between neighboring concentric pipe 3 is less and less from tube hub outwards.It is found through experiments that, bronze drum
The distance between adjacent concentric tube is less and less, i.e., the increased amplitude of the external diameter of concentric tube 3 is less and less, can further function as
The effect of regime flow, the effect with vibration and noise reducing.Relative to normal setting, it is possible to increase 15-20% or so.
Preferably, the less and less amplitude of the distance between adjacent tubes 3 constantly increases from tube hub outwards.Pass through
Experiment is found, by being arranged such, can further improve about 5% or so.
Preferably, the sectional area of small flow channels meets following relationship：
AI, on≤AI, under (2)
In formula, Ai is the circulation area of i-th of small flow channels, and unit is mm2；N is small flow channels quantity；ηAFor area ratio, according to
Line size and mobility status, are obtained by optimization experiment, see empirical equation 3, ηA<1；A0For the circulation area of pipeline, unit is
mm2.Wherein, the mathematical meaning of formula (1) is that the sectional area summation of whole pipes is more than or equal to the η of pipeline sectionATimes；Formula (2) is
The sectional area of upper strata pipe is less than or equal to the sectional area of lower floor's pipe.
Above-mentioned formula is to calculate the optimal result obtained by substantial amounts of experiment, and by substantial amounts of, meets above-mentioned pass
System, can ensure two-phase fluid being separated into liquid and gas in optimum degree, liquid phase is divided into small liquid group, by gas phase point
It is cut into the effect of minute bubbles.
Preferably, the invention provides a kind of two-phase flow tube shell type heat exchanger, as shown in figure 1, the heat exchanger includes
Housing 5, the housing two ends set respectively set on end socket 6,7, one of end socket two phase flow fluid inlet tube 8 and/
Or outlet, telescopic two phase flow stabilising arrangement as shown in Figure 2 is set on fluid inlet tube 8 and/or outlet.
The present invention is arranged in the inlet tube 8 of two phase flow heat transfer device and/or outlet, gas phase will can be divided into small
Bubble, it is to avoid the increase of gas phase, promotes gas phase smooth outflow, it is ensured that the gas phase entered in the heat exchanger tube of heat exchanger is uniform, can
So that heat exchange is uniform, it is to avoid local temperature is too high or too low, so as to improve heat transfer effect.
By setting aperture, it is ensured that adjacent runner is interconnected, it may further ensure that fluid between channels
Fully flowing, further counterpressure further improves heat transfer effect.
Further preferably, foregoing stable dress is set the invention discloses a kind of Two-phase Flow Pipeline Transport, in the pipeline
Put, the stabilising arrangement takes the arrangement at interval in pipeline, in compartment arrangement, the length of core,
The distance at interval meets following relationship：
Li≥Li,0 (4)
Xi≤Xi,0 (5)
In formula, LiFor the length of i-th of core body, unit is mm；Li,0For the minimum allowable length of i-th of core body, unit is
Mm, is obtained by testing；N is the quantity of core body；XiFor the distance at i-th of interval, unit is mm；XI, 0For i-th interval permit
Perhaps ultimate range, unit is mm, passes through to test and obtains；M is the quantity at interval；ηLFor length ratio, according to line size and flowing
Situation, is obtained by optimization experiment, ηL≤ 1, wherein, the mathematical meaning of formula (6) is the pipe that is more than of length summation of whole core bodys
The η of road lengthLTimes.
Above-mentioned formula is to calculate the optimal result obtained by substantial amounts of experiment, and by substantial amounts of, meets above-mentioned pass
System, is conducive to preventing the minute bubbles after segmentation and small liquid group from regrouping in optimum degree, suppresses the backflow of liquid phase, promote gas phase
Smooth outflow, improves the action effect of regime flow.
The present invention and disclose a kind of mounting means of two phase flow stabilising arrangement, as shown in figure 4, for wafer type core body consolidate
Determine mode, first core (normal length is smaller) is placed between two segment pipes, then by core to being clipped in two sections of pipes
It is fixed between road (such as bolt fastening).
Further preferably, described two-phase flow tube shell type heat exchanger, the inlet porting pipe flange on fluid inlet tube is described
Entrance pipe flange and pipe flange connection, to pressing from both sides foregoing telescopic two phase flow between entrance pipe flange and pipe flange
Stabilising arrangement.
For wafer type core body fixed form, pipeline external environment and interface are not influenceed, with dismount it is simple the characteristics of, both
New device is can be suitably used for, plant modification is can be suitably used for again.
Although the present invention is disclosed as above with preferred embodiment, the present invention is not limited to this.Any art technology
Personnel, without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should
It is defined when by claim limited range.
Claims (9)
1. a kind of two-phase flow tube shell type heat exchanger, including housing, the housing two ends set end socket, at least one described envelope respectively
Two phase flow fluid inlet tube is set on head, it is characterised in that telescopic two phase flow is set on fluid inlet tube and/or outlet
Stabilising arrangement, the two phase flow stabilising arrangement includes core body, and the core body includes multiple concentric tubes and fin, the fin connection
Adjacent concentric tube.
2. heat exchanger as claimed in claim 1, it is characterised in that intercommunicating pore is set on the concentric tube and fin.
3. a kind of telescopic two phase flow stabilising arrangement being arranged in Two-phase Flow Pipeline Transport, including core body, the core body include multiple
Concentric tube and fin, the fin connect adjacent concentric tube, so as to form multiple small flow channels between concentric tube and fin.
4. stabilising arrangement as claimed in claim 3, it is characterised in that intercommunicating pore is set on the concentric tube and fin.
5. stabilising arrangement as claimed in claim 3, it is characterised in that, the distance between adjacent tubes are more next from tube hub outwards
It is smaller.
6. stabilising arrangement as claimed in claim 4, it is characterised in that, the distance between adjacent tubes are more next from tube hub outwards
Smaller amplitude constantly increases.
7. stabilising arrangement as claimed in claim 3, it is characterised in that the sectional area of small flow channels meets following relationship：
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In formula, Ai is the circulation area of i-th of small flow channels, and unit is mm2；N is small flow channels quantity；ηAFor area ratio,
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8. the stabilising arrangement described in one of claim 3-7, the stabilising arrangement are set in a kind of Two-phase Flow Pipeline Transport, the pipeline
The arrangement at interval is taken in pipeline, in compartment arrangement, under the length of core, the distance at interval are met
Row relation：
Li≥Li,0 (4)
Xi≤Xi,0 (5)
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ηL≤1。
9. a kind of two-phase flow tube shell type heat exchanger, including housing, the housing two ends set end socket, at least one described envelope respectively
Two phase flow fluid inlet tube, the inlet porting pipe flange on fluid inlet tube, the entrance pipe flange and tube method are set on head
Orchid connection, it is characterised in that to chuck cartridge type two phase flow stabilising arrangement, the two-phase between entrance pipe flange and pipe flange
Flowing stabilising arrangement includes core body, and the core body includes multiple concentric tubes and fin, and the fin connects adjacent concentric tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075732.0A CN107062952B (en) | 2017-02-13 | 2017-02-13 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075732.0A CN107062952B (en) | 2017-02-13 | 2017-02-13 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107062952A true CN107062952A (en) | 2017-08-18 |
| CN107062952B CN107062952B (en) | 2018-01-30 |
Family
ID=59598613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710075732.0A Active CN107062952B (en) | 2017-02-13 | 2017-02-13 | A kind of two-phase flow tube shell type heat exchanger and its stabilising arrangement |
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| CN109585046A (en) * | 2018-12-04 | 2019-04-05 | 中国核动力研究设计院 | A kind of solution injects uniformly and hands over mixing device |
| WO2020021299A1 (en) * | 2018-07-27 | 2020-01-30 | Carrier Corporation | A refrigerant vessel component and refrigeration circuit comprising such a refrigerant vessel component |
| CN110864567A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Balanced flow design method for digital variable heat exchanger |
| CN112408531A (en) * | 2020-10-30 | 2021-02-26 | 安徽海螺川崎工程有限公司 | Evaporation salt making system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110864567A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Balanced flow design method for digital variable heat exchanger |
| WO2020021299A1 (en) * | 2018-07-27 | 2020-01-30 | Carrier Corporation | A refrigerant vessel component and refrigeration circuit comprising such a refrigerant vessel component |
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| US11561034B2 (en) | 2018-07-27 | 2023-01-24 | Carrier Corporation | Refrigerant vessel component and refrigeration circuit comprising such a refrigerant vessel component |
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| CN112408531A (en) * | 2020-10-30 | 2021-02-26 | 安徽海螺川崎工程有限公司 | Evaporation salt making system |
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| CN107062952B (en) | 2018-01-30 |
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