CN108332580A - A kind of vehicle repair major flow tube shell type heat exchanger - Google Patents
A kind of vehicle repair major flow tube shell type heat exchanger Download PDFInfo
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- CN108332580A CN108332580A CN201710652542.0A CN201710652542A CN108332580A CN 108332580 A CN108332580 A CN 108332580A CN 201710652542 A CN201710652542 A CN 201710652542A CN 108332580 A CN108332580 A CN 108332580A
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- tube
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- radial bars
- fin
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- 230000008439 repair process Effects 0.000 title claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 60
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000012071 phase Substances 0.000 claims abstract description 20
- 238000012546 transfer Methods 0.000 claims abstract description 19
- 230000005514 two-phase flow Effects 0.000 claims abstract description 18
- 239000007791 liquid phase Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000003416 augmentation Effects 0.000 abstract description 4
- 230000003313 weakening effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 17
- 230000001965 increasing effect Effects 0.000 description 13
- 238000013016 damping Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F28D7/16—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 in parallel spaced relation
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of vehicle repair major flow tube shell type heat exchangers, including shell, end socket is respectively set in the shell both ends, tube sheet is arranged in the link position of the end socket and shell, heat exchanger tube connects the tube sheet at both ends, vapour phase in stream-liquid two-phase flow can be condensed into liquid phase in heat transfer process, stream-liquid two-phase flow flows in tube side, constant-current stabilizer is set in the heat exchanger tube, the constant-current stabilizer includes along the central axial setting center-pole of heat exchanger tube and along center-pole to the more radial bars radially extended, the fin that the more directions from radial bars to fluid flow pair extend is set in the radial bars, the fin has tip, the tip extends towards the direction of fluid flow pair.The present invention provides a kind of heat exchanger of the constant-current stabilizer of Novel structure, there are when Gas- liquid two-phase flow in pipeline, augmentation of heat transfer, while weakening the vibration of pipeline, reduce noise level.
Description
Technical field
The present invention relates to a kind of shell-and-tube heat exchangers, exchange heat more particularly, to a kind of two-phase flow containing condensable steam
Device.
Background technology
Stream-liquid two-phase flow heat exchange is universally present in various heat-exchanger rigs, and stream-liquid two-phase flow is in heat transfer process because of vapour
The presence of phase can cause heat exchange efficiency low, deteriorate heat exchange, process fluid flow is unstable, and can lead to the hair of water hammer
It is raw.When the phase of two-phase working substance is without uniformly mixing and discontinuous flowing, large-sized liquid group can occupy air mass at high speed
Space causes two-phase flow unstable, so that tempestuously impact device and pipeline, generates sharp pounding and noise, seriously prestige
Coerce equipment operational safety.
The present inventor also devises some constant-current stabilizers, such as multitube constant-current stabilizer in applying in front, referring to Fig. 7 institutes
Show.But such device is found in operation, because being to be closely linked, therefore formed between three pipes between pipe
Space A it is relatively small because the convex arc that space A is three pipes is formed, therefore most of area stenosis of space A, can make
It is difficult to enter through at fluid, causes fluid short, to affect the heat exchange of fluid, good current stabilization can not be played the role of.
Simultaneously as more tube combinations of above structure are together, manufacture is difficult.
Therefore in view of the above-mentioned problems, the present invention provides a kind of heat exchangers of the constant-current stabilizer of Novel structure, to solve
Above-mentioned problem.
Invention content
The object of the present invention is to provide a kind of heat exchangers of the constant-current stabilizer of Novel structure, and there are vehicle repair majors in pipeline
When flowing, weaken the vibration in stream-liquid two-phase flow heat exchanger tube, reduces noise level, while augmentation of heat transfer.
To achieve the goals above, technical scheme is as follows：
End socket, the end socket and shell is respectively set in a kind of vehicle repair major flow tube shell type heat exchanger, including shell, the shell both ends
Tube sheet is arranged in the link position of body, and heat exchanger tube connects the tube sheet at both ends, and the vapour phase in stream-liquid two-phase flow can in heat transfer process
It is condensed into liquid phase, stream-liquid two-phase flow flows in tube side, constant-current stabilizer is arranged in the heat exchanger tube, the constant-current stabilizer includes edge
The central axial setting center-pole of heat exchanger tube and along center-pole to the more radial bars radially extended, in the radial bars
The fin that more directions from from radial bars to fluid flow pair extend is set, the fin has a tip, the tip towards
The direction of fluid flow pair extends.
Preferably, the fin is triangular fin.
Preferably, a bottom edge of triangle is located in radial bars, with the vertex at corresponding angle and this while in
75-135 ° of the angle that the line of point is formed with radial bars.
Preferably, angle is 90 °.
Preferably, the triangular fin is isosceles triangle fin, the bottom edge of the isosceles triangle is located at diameter
To on bar.
Preferably, the size of the apex angle of isosceles triangle is A, the length on the bottom edge of isosceles triangle is Y, adjacent isosceles
The distance between triangle is J, then meets following require：
Y/J= d-a*sin(A)3-b*sin(A)2-c* sin (A)；Wherein sin is trigonometric function, and a, b, c, d are parameters；
0.353<a<0.358,
0.485<b<0.486,
0.082<c<0.083,
0.403<d<0.404,4<A<33 °,
0.1765<Y/J <0.4118。
Preferably, a=0.3559, b=0.4859, c=0.08294, d=0.4033.
Preferably, radial bars are 5-10 roots, the angle between the radial bars is all equal.
Preferably, radial bars are 8.
Preferably, the length on the bottom edge of isosceles triangle is 0.02-0.03 times of heat exchange bore.
Compared with prior art, of the invention to have the following advantages：
1）The present invention provides a kind of constant-current stabilizers of Novel structure, and it is gentle that two-phase fluid is separated into liquid phase by constant-current stabilizer
Liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, inhibits the reflux of liquid phase, promotes gas phase smooth outflow, plays by phase
The effect of regime flow, has the effect of vibration and noise reducing.Relative to bar wing formula constant-current stabilizer, steady flow result is further increased, by force
Change heat transfer, and is simple to manufacture.
2）The present invention is equivalent to by the way that bar wing formula constant-current stabilizer is arranged and increases interior heat exchange area in heat exchanger tube, strengthen
Heat exchange, improves heat transfer effect.
3）The present invention avoids existing because vehicle repair major is divided in the entire cross-section location of heat exchanger tube
Only heat transfer tube wall face is split in technology, expands liquid-vaqor interface and vapour phase to be realized on entirely heat exchange tube section
The contact area of boundary layer and cooling wall simultaneously enhances disturbance, reduces noise and vibrations, enhances heat transfer.
4）The present invention is by setting up the distance between adjacent constant-current stabilizer, the length of constant-current stabilizer in tube height side
The rule of the parameters sizes such as degree, fin size changes, and to further reach steady flow result, reduces noise, improves heat transfer effect.
5）The present invention is changed by the way that the rule of the parameters sizes such as phase fin size, spacing is arranged in radial directions, to
Further reach steady flow result, reduce noise, improves heat transfer effect.
6）The present invention has been carried out widely by the rule that exchanges heat caused by the variation to bar wing formula constant-current stabilizer parameters
Research, is meeting flow resistance, is realizing the best relation formula of the effect of vibration and noise reducing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the two-phase flow tube shell type heat exchanger of the present invention；
Fig. 2 is the heat exchange tube structure schematic diagram of the two-phase flow tube shell type heat exchanger of the present invention；
Fig. 3 constant-current stabilizer structural schematic diagrams of the present invention；
Fig. 4 is constant-current stabilizer of the present invention arrangement schematic diagram in heat exchanger tube；
Fig. 5 is another schematic diagram that constant-current stabilizer of the present invention is arranged in heat exchanger tube.
Fig. 6 is that constant-current stabilizer of the present invention arranges cross-sectional view in heat exchanger tube.
Fig. 7 is the structural schematic diagram of the two-phase flow tube shell type heat exchanger in background technology.
Reference numeral is as follows：Front head 1, cover flange 2, front tube sheet 3, shell 4, constant-current stabilizer 5, heat exchanger tube 6, back tube sheet
7, cover flange 8, rear head 9, bearing 10, bearing 11, tube-side inlet pipe 12, tube side outlet 13, shell side inlet pipe 14, shell side
Outlet 15, center-pole 51, radial bars 52, fin 53.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.
It should be noted that if without specified otherwise, the two phase flow that the present invention mentions is stream-liquid two-phase flow, vapour herein
Liquid phase mutually can be condensed into heat transfer process.
A kind of shell-and-tube heat exchanger as shown in Figure 1, the shell-and-tube heat exchanger include shell 4, heat exchanger tube 6, tube side
Inlet tube 12, tube side outlet 13, shell side inlet take over 14 and shell-side outlet take over 15；6 groups of multiple heat exchanger tubes disposed in parallel
At heat-exchanging tube bundle be connected to front tube sheet 3, on back tube sheet 7；The front end of the front tube sheet 3 is connect with front head 1, back tube sheet 7
Rear end connects rear head 9；The tube-side inlet pipe 12 is arranged on rear head 9；The tube side outlet 13 is arranged preceding
On end socket 1；The shell side inlet take over 14 and shell-side outlet take over 15 is arranged on shell 4；The fluid of two phase flow is from pipe
Journey inlet tube 12 enters, and exchanges heat by heat exchanger tube, goes out from tube side outlet 13.
As in Figure 3-5, the setting bar wing formula constant-current stabilizer 5 in heat exchanger tube 6.The structure of the bar wing formula constant-current stabilizer 5
See Fig. 3-4.As shown in figure 3, constant-current stabilizer 5 is arranged in the heat exchanger tube 6, the constant-current stabilizer includes along in heat exchanger tube 6
Mandrel is arranged to setting center-pole 51 and along center-pole 51 to the more radial bars 52 radially extended in the radial bars 52
The fin 53 that the more directions from radial bars 52 to fluid flow pair extend, the fin 53 have tip, the tip court
The direction for fluid flow pair extends.
Bar wing formula constant-current stabilizer is arranged in the present invention in heat exchanger tube, will mainly by the tip of bar wing formula constant-current stabilizer
Liquid and gas in two-phase fluid are detached, and liquid phase is divided into small liquid group, and gas phase is divided into minute bubbles, inhibits liquid phase
Reflux, promote gas phase smooth outflow, play the role of regime flow, have the effect of vibration and noise reducing.Apply relative to front
Constant-current stabilizer, further increase steady flow result, augmentation of heat transfer, and be simple to manufacture.
The present invention is equivalent to by the way that bar wing formula constant-current stabilizer is arranged and increases interior heat exchange area in heat exchanger tube, enhance
Heat exchange, improves heat transfer effect.
The present invention is because all cross-section locations by gas-liquid two-phase in all heat exchanger tubes are divided, to entire
The segmentation of gas-liquid interface and gas phase boundary and the contact area of cooling wall are realized on heat exchange tube section and enhances disturbance, greatly
Big reduces noise and vibrations, enhances heat transfer.
Preferably, as Figure 4-Figure 6, the fin 53 is triangular fin.Because triangular fin itself has three
A tip can make full use of tip to carry out current stabilization effect downwards in this way.
The present invention is by being arranged radial bars and along the outwardly extending triangular fin of radial bars, can further increase
Heat exchange area improves heat transfer effect, and because setting triangular fin, passes through the three of the similar acicular texture of triangular fin
Angular tip can further increase flow-disturbing so that fluid is sufficiently mixed, and can further be destroyed the increase of bubble and be gathered
Collection, improves heat transfer effect.
Further preferably, radial bars cross section is rectangle, is preferably square.
Further preferably, radial bars cross section is circle.
Preferably, 42 times of the 0.21-0. of the engineering diameter of a diameter of center-pole of the engineering of radial bars, preferably 0.32
Times.
Preferably, the radial bars are shaft, from the center of circle along the radial inner wall for extending to condenser pipe.
Preferably, multiple triangular fins are arranged in each radial bars, multiple triangular fins are similar figures.
Three interior angles in correspondence with each other of i.e. different triangular fins are identical.
Preferably, the radial bars are round bar, a diameter of 0.7-1.1mm, preferably 0.8mm.
Preferably, fin is extended downwardly from the center line of round bar.The fin is slab construction.The slab construction is prolonged
Stretch the center line that center-pole is passed through in face, and center line of the slab construction extended surface Jing Guo radial bars.
Preferably, such as 4, shown in 5, multiple fins 53 are set, the fin 53 is similar figures in same radial bars（That is wing
Piece is of similar shape）, from the center-pole 51 of heat exchanger tube 6 to radially extending on direction, the ruler of the fin in same radial bars
It is very little increasing.That is distance center bar 51（I.e. apart from heat exchanger tube central axis）Distance be S1, the size of fin is C1, and C1 is
The function of distance S1, i.e. C1=F4(S1), meet following require：
C1’>0, wherein C1 ' is the first order derivative of C1.
Because heat exchange occurs mainly in pipe wall of heat exchange pipe, therefore 53 size of fin by increasing pipe wall of heat exchange pipe so that
The ability enhancing of the cutting liquid and vapor capacity of near-wall, is reinforced the cutting power of near-wall by emphasis, can be directed to
The noise reduction damping of carry out in light of the circumstances of property, to further realize noise reduction damping effect, while also can further strengthen biography
Heat.
Further preferably, from the center-pole of heat exchanger tube to radially extending on direction, the size of the fin in same radial bars
Increasing amplitude constantly increases.That is C1 ">0, wherein C1 " are the secondary inverse of C1 respectively.
Show the variation of above-mentioned increasing degree by numerical simulation and experimental study, noise reduction can be further realized
Damping, effect can be turned up close to 8%.
Preferably, multiple fins 53 are arranged in same radial bars 52, from the center-pole 51 of heat exchanger tube 6 to the side of radially extending
Upwards, the spacing between the fin 53 constantly reduces.The amplitude that spacing between the fin constantly reduces is not
Disconnected increase.
I.e. the distance of distance center bar is S1, and the spacing of fin is J1, J1=F5(S1), meet following require：
J1’<0,J1”>0, wherein J1 ', J1 " are the first order derivative of J1 and secondary inverse respectively.
Concrete principle is same as above.Because heat exchange occurs mainly in pipe wall of heat exchange pipe, therefore the wing by increasing pipe wall of heat exchange pipe
The distribution of piece 53 so that the ability enhancing of the cutting liquid and vapor capacity of near-wall, by reinforcing the noise reduction damping of near-wall,
To further realize noise reduction damping effect, while also can further augmentation of heat transfer.
Preferably, a bottom edge of triangle is located in radial bars 52, when with the vertex at corresponding angle with this
The angle that the line at midpoint is formed with radial bars is 75-135 °.Mainly by the setting of above-mentioned angle, fin is enabled to
Tip carries out the cutting of vehicle repair major to the full extent, to further increase the effect of the present invention.
Preferably, the angle that the line at the midpoint when vertex at corresponding angle is with this is formed with radial bars is 90 °
Preferably, as shown in figure 5, the triangular fin is isosceles triangle fin, the bottom edge of the isosceles triangle
In radial bars.
It is learnt by analyzing and testing, the spacing between fin 43 cannot be excessive, leads to damping noise reduction if excessive
Effect is bad, while can not be too small, causes resistance excessive if too small, and similarly, the height of fin can not excessive or mistake
Small, the effect for also resulting in damping noise reduction is bad or resistance is excessive, therefore the present invention is through a large number of experiments, is preferentially meeting
Normal flow resistance（Total pressure-bearing be 2.5Mpa hereinafter, the on-way resistance of single riser be less than or equal to 5Pa/M）Feelings
Under condition so that being optimal of damping noise reduction has arranged the best relationship of parameters.
The size of the apex angle of isosceles triangle is A, and the length on the bottom edge of isosceles triangle is Y, adjacent isosceles triangle it
Between distance be J, then meet following require：
Y/J= d-a*sin(A)3-b*sin(A)2-c* sin (A)；Wherein sin is trigonometric function, and a, b, c, d are parameters；
0.353<a<0.358,
0.485<b<0.486,
0.082<c<0.083,
0.403<d<0.404,4<A<33 °,
0.1765<Y/J <0.4118。
The distance between wherein adjacent isosceles triangle J is adjacent the distance between the midpoint of triangle base.
Preferably, a=0.3559, b=0.4859, c=0.08294, d=0.4033.
Preferably, 5<A<30°.
Preferably, radial bars are 5-10 roots, the angle between the radial bars is all equal.
Preferably, radial bars are 8.
Preferably, the length on the bottom edge of isosceles triangle is rise bore 0.02-0.03 times.
Preferably, along the flow direction of heat exchange tube fluid, the multiple constant-current stabilizers of setting in heat exchanger tube, from heat exchanger tube
Entrance to the outlet of heat exchanger tube, the distance between adjacent constant-current stabilizer is increasingly longer.Distance apart from heat exchange tube inlet is X,
The distance between adjacent constant-current stabilizer is S, S=F1(X), S ' is the first order derivative of S, meets following require：
S’>0;
Main cause is because containing steam in fluid, therefore along the flow direction of fluid, steam is because of heat exchange tube fluid
Heat release and condense, to be condensed into liquid phase, this cause along heat exchange tube fluid flow direction, steam can be fewer and fewer, vapour
Vapour phase in liquid two-phase is fewer and fewer, and the exchange capability of heat in heat exchanger tube can constantly increase with vapor-phase conversion for liquid phase,
Vibrations and its noise also can constantly be reduced with vapor-phase conversion for liquid phase.Therefore, the spacing of constant-current stabilizer can be become larger,
Flow resistance on the one hand can be reduced in this way, on the other hand can also keep low noise and low vibrations, and can also be filled because of current stabilization
It sets fewer and fewer as the distribution of inner fin, keeps the heat exchange on entire heat exchanger tube uniform, but also material can be saved.
It is found through experiments that, by above-mentioned setting, can both reduce vibrations and noise to the full extent, while can protect
Card reduces the flow resistance of fluid.
Further preferably, from the entrance of heat exchanger tube to the outlet of heat exchanger tube, the distance between adjacent constant-current stabilizer is increasingly
Long amplitude is continuously increased.That is S " is the second derivative of S, meets following require：
S”>0;
It is found through experiments that, by so set, 8% or so vibrations and noise can be further decreased, while reducing flowing
6% or so resistance.
Preferably, the length of each constant-current stabilizer remains unchanged.
Preferably, other than the distance between adjacent constant-current stabilizer, constant-current stabilizer others parameter（Such as length,
Caliber etc.）It remains unchanged.
Preferably, along the flow direction of fluid in heat exchanger tube 6, the multiple constant-current stabilizers 5 of setting in heat exchanger tube 6, from changing
For the entrance of heat pipe 6 to the outlet of heat exchanger tube 6, the size of the fin of constant-current stabilizer 5 is increasing.That is the fin size of constant-current stabilizer
For C, C=F2(X), C ' is the first order derivative of C, meets following require：
C’>0;
Further preferably, from the entrance of heat exchanger tube to the outlet of heat exchanger tube, the increasing amplitude of the fin size of constant-current stabilizer
It is continuously increased.That is C " is the second derivative of C, meets following require：
C”>0;
The variation of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the distance between adjacent constant-current stabilizer remains unchanged.
Preferably, the length in addition to constant-current stabilizer is outside one's consideration, constant-current stabilizer others parameter（Such as adjacent spacing, caliber
Deng）It remains unchanged.
Preferably, along the flow direction of fluid in heat exchanger tube 6, the multiple constant-current stabilizers of setting in heat exchanger tube 6, from heat exchange
For the entrance of pipe 6 to the outlet of heat exchanger tube 6, the fin distribution density in different constant-current stabilizers 5 is increasing.That is the wing of constant-current stabilizer
Piece distribution density is D, D=F3(X), D ' is the first order derivative of D, meets following require：
D’>0;
Preferably, from the entrance of heat exchanger tube to the outlet of heat exchanger tube, the increasing width of the fin distribution density of constant-current stabilizer
Degree is continuously increased.I.e.
D " is the second derivative of D, meets following require：
D”>0。
The variation of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the length of constant-current stabilizer and the distance of adjacent constant-current stabilizer remain unchanged.
Preferably, other than the fin distribution density of constant-current stabilizer, constant-current stabilizer others parameter（Such as length, phase
The distance between adjacent constant-current stabilizer etc.）It remains unchanged.
The distance between adjacent constant-current stabilizer is S, and the internal diameter of heat exchange tube is W, and the interval S of wherein constant-current stabilizer is adjacent
Adjacent the distance between the radial bars central axis of constant-current stabilizer.
34mm<W<58mm；
50mm<S<80mm。
Preferably, heat exchanger tube length L is between 3000-5500mm.Further preferably, between 3500-4500mm.
Further preferably, 40mm<W<50mm；
55mm<S<60mm。
Preferably, S is more than 1.4 times of the height of fin.
For parameters such as other parameters, such as tube wall, shell wall thickness according to normal standard setting.
Preferably, fluid is water in shell side.
Preferably, tube side inner fluid speed 3-5m/S.
Preferably, the length L of heat exchanger tube and the diameter of the housing ratio of heat exchanger are 6-10.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being subject to claim limited range.
Claims (10)
1. a kind of vehicle repair major flow tube shell type heat exchanger, including shell, the shell both ends are respectively set end socket, the end socket and
Tube sheet is arranged in the link position of shell, and heat exchanger tube connects the tube sheet at both ends, the energy in heat transfer process of the vapour phase in stream-liquid two-phase flow
Enough it is condensed into liquid phase, which is characterized in that stream-liquid two-phase flow flows in tube side, and constant-current stabilizer is arranged in the heat exchanger tube, described
Constant-current stabilizer include along heat exchanger tube central axial setting center-pole and along center-pole to the more root diameters radially extended to
Bar, the fin that the more directions from radial bars to fluid flow pair extend is arranged in the radial bars, and the fin has point
Portion, the tip extend towards the direction of fluid flow pair.
2. shell-and-tube heat exchanger as described in claim 1, which is characterized in that the fin is triangular fin.
3. shell-and-tube heat exchanger as claimed in claim 2, which is characterized in that a bottom edge of triangle is located in radial bars,
75-135 ° of the angle that the line at midpoint when with the vertex at corresponding angle with this is formed with radial bars.
4. shell-and-tube heat exchanger as claimed in claim 3, which is characterized in that angle is 90 °.
5. shell-and-tube heat exchanger as claimed in claim 2, which is characterized in that the triangular fin is isosceles triangle wing
The bottom edge of piece, the isosceles triangle is located in radial bars.
6. shell-and-tube heat exchanger as claimed in claim 5, which is characterized in that the size of the apex angle of isosceles triangle is A, isosceles
The length on the bottom edge of triangle is Y, and the distance between adjacent isosceles triangle is J, then meets following require：
Y/J= d-a*sin(A)3-b*sin(A)2-c* sin (A)；Wherein sin is trigonometric function, and a, b, c, d are parameters；
0.353<a<0.358,
0.485<b<0.486,
0.082<c<0.083,
0.403<d<0.404,4<A<33 °,
0.1765<Y/J <0.4118。
7. shell-and-tube heat exchanger as claimed in claim 6, which is characterized in that a=0.3559, b=0.4859, c=0.08294, d
=0.4033。
8. shell-and-tube heat exchanger as claimed in claim 7, which is characterized in that radial bars are 5-10 roots, between the radial bars
Angle it is all equal.
9. shell-and-tube heat exchanger as claimed in claim 8, which is characterized in that radial bars are 8.
10. shell-and-tube heat exchanger as claimed in claim 5, which is characterized in that the length on the bottom edge of isosceles triangle is heat exchange
0.02-0.03 times of bore.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081865.8A CN109654916B (en) | 2017-08-02 | 2017-08-02 | Vapor-liquid two-phase flow heat exchange tube with fins inclined towards center |
| CN201710652542.0A CN108332580B (en) | 2017-08-02 | 2017-08-02 | A kind of vehicle repair major flow tube shell type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652542.0A CN108332580B (en) | 2017-08-02 | 2017-08-02 | A kind of vehicle repair major flow tube shell type heat exchanger |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910081865.8A Division CN109654916B (en) | 2017-08-02 | 2017-08-02 | Vapor-liquid two-phase flow heat exchange tube with fins inclined towards center |
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| CN108332580B CN108332580B (en) | 2019-03-08 |
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| CN201710652542.0A Active CN108332580B (en) | 2017-08-02 | 2017-08-02 | A kind of vehicle repair major flow tube shell type heat exchanger |
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| CN111336839B (en) * | 2018-12-18 | 2021-04-06 | 青岛酒店管理职业技术学院 | Shell-and-tube heat exchanger with variable kernel spacing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1003013A (en) * | 1962-05-28 | 1965-09-02 | Patterson Kelley Co | Heat exchange device |
| CN2854484Y (en) * | 2005-12-15 | 2007-01-03 | 苏州新太铜高效管有限公司 | Heat-exchange pipe for evaporimeter |
| CN106767007A (en) * | 2016-11-25 | 2017-05-31 | 中国核动力研究设计院 | The heat exchanger of pointed structures is set outside a kind of pipe |
| CN106969652A (en) * | 2017-05-09 | 2017-07-21 | 山东大学 | A kind of condensable annular and separation device heat exchanger of length change |
-
2017
- 2017-08-02 CN CN201910081865.8A patent/CN109654916B/en active Active
- 2017-08-02 CN CN201710652542.0A patent/CN108332580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1003013A (en) * | 1962-05-28 | 1965-09-02 | Patterson Kelley Co | Heat exchange device |
| CN2854484Y (en) * | 2005-12-15 | 2007-01-03 | 苏州新太铜高效管有限公司 | Heat-exchange pipe for evaporimeter |
| CN106767007A (en) * | 2016-11-25 | 2017-05-31 | 中国核动力研究设计院 | The heat exchanger of pointed structures is set outside a kind of pipe |
| CN106969652A (en) * | 2017-05-09 | 2017-07-21 | 山东大学 | A kind of condensable annular and separation device heat exchanger of length change |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109654916B (en) | 2021-04-13 |
| CN109654916A (en) | 2019-04-19 |
| CN108332580B (en) | 2019-03-08 |
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