CN108204751A - A kind of non-condensable gas pipe heat exchanger of constant-current stabilizer spacing variation - Google Patents

A kind of non-condensable gas pipe heat exchanger of constant-current stabilizer spacing variation Download PDF

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Publication number
CN108204751A
CN108204751A CN201710168109.XA CN201710168109A CN108204751A CN 108204751 A CN108204751 A CN 108204751A CN 201710168109 A CN201710168109 A CN 201710168109A CN 108204751 A CN108204751 A CN 108204751A
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CN
China
Prior art keywords
heat exchanger
constant
tube
current stabilizer
shell
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CN201710168109.XA
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CN108204751B (en
Inventor
郭春生
年显勃
刘勇
齐超
宋金圣
邓伊涵
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Shandong Zhuo'ao Environmental Protection Technology Co., Ltd.
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Shandong University
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Priority to CN201710168109.XA priority Critical patent/CN108204751B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16Heat-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
    • F28D7/1615Heat-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 the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

Abstract

The present invention provides a kind of shell-and-tube heat exchangers, including housing, the housing both ends set end socket respectively, the link position of the end socket and housing sets tube sheet, heat exchanger tube connects the tube sheet at both ends, gas phase in biphase gas and liquid flow is insoluble or slightly solubility gas, i.e. in heat transfer process, gas will not be dissolved in liquid, it is characterized in that, setting is used for the constant-current stabilizer of damping noise reduction in the heat exchanger tube, the multiple constant-current stabilizers of setting in same root heat exchanger tube, along the flow direction of heat exchange tube fluid, the spacing of adjacent constant-current stabilizer first gradually increases to a certain position, then the spacing since a certain position between adjacent constant-current stabilizer is again gradual reduces.The present invention provides a kind of spacing by constant-current stabilizer and changes, and there are during gas liquid two-phase flow in pipeline, utmostly weakens the vibration of pipeline, reduces noise level, while reduce flow resistance.

Description

A kind of non-condensable gas pipe heat exchanger of constant-current stabilizer spacing variation
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 on-condensible gas Device.
Background technology
Two phase flow heat transfer containing on-condensible gas is universally present in heat-exchanger rig, such as is mixed into heat transfer process On-condensible gas or the on-condensible gas generated during fluid transport because of ageing equipment, also for example natural gas liquefaction is (main Ingredient is wanted for -42 DEG C of -162 DEG C of methane of boiling point, -88 DEG C of ethane of boiling point, boiling point propane etc.) during different boiling blending agent Condensation, air separation, azeotrope refrigeration, oil or cracking waste plastics, the industries such as biogas production main technique mistake Journey.
Fluid containing on-condensible gas is in heat transfer process because the presence of gas phase, can lead to that heat exchange efficiency is low, and deterioration is changed Heat, process fluid flow is unstable, and can lead to the generation of impingement phenomenon.When the phase of two-phase working substance does not mix uniformly And when discontinuously flowing, large-sized liquid group can occupy air mass space at high speed, cause two-phase flow unstable, so as to tempestuously Impact device and pipeline generate sharp pounding and noise, seriously threaten equipment operational safety.
For the Heat exchanger problem of biphase gas and liquid flow, it has therefore already been proposed that new settling mode solves above-mentioned ask Topic, such as Publication No. CN105258535A patent applications, can by " thorn " and " hole " by the way that bur is set to destroy laminar sublayer To disturb fluid on different height respectively, so as to carry out augmentation of heat transfer.But above-mentioned technology does not solve biphase gas and liquid flow Vibrations and noise problem in heat exchanger, and above-mentioned settling mode is complicated, and because the dimensional problem of bur, nothing Method ensures the disturbance on the entire cross section in the middle part of heat exchanger tube, can not realize uniform, noise and the shake of gas phase liquid phase on the whole Dynamic problem is still serious.
There is no carry out cloth according to the rule of damping and noise reduction for current solution vibrations and the arrangement of the constant-current stabilizer of noise It puts, causes the flow resistance in pipe excessive, damping noise reduction effect is bad.
In view of the above-mentioned problems, the present invention provides a kind of heat exchanger of the constant-current stabilizer of Novel structure, it is above-mentioned so as to solve The problem of.
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 gas-liquid two-phases in pipeline During flowing, weaken the vibration in biphase gas and liquid flow heat exchanger tube, reduce noise level, while augmentation of heat transfer.
To achieve these goals, technical scheme is as follows:
A kind of biphase gas and liquid flow multitube shell-and-tube heat exchanger, including housing, the housing both ends set end socket respectively, institute State the link position setting tube sheet of end socket and housing, heat exchanger tube connects the tube sheet at both ends, and the gas phase in biphase gas and liquid flow is insoluble Or slightly solubility gas, i.e., in heat transfer process, gas will not be dissolved in liquid, and setting is for the steady of damping noise reduction in the heat exchanger tube Device is flowed, multiple constant-current stabilizers are set in same root heat exchanger tube, along the flow direction of heat exchange tube fluid, adjacent current stabilization dress The spacing put first gradually increases to a certain position, and then the spacing since a certain position between adjacent constant-current stabilizer is again gradual Reduction.
Preferably, along the flow direction of heat exchange tube fluid, the spacing of the adjacent constant-current stabilizer gradually subtracts Small amplitude is increasing.
Preferably, along the flow direction of heat exchange tube fluid, the spacing of adjacent constant-current stabilizer is gradually increased Amplitude is increasing.
Preferably, the length of heat exchanger tube is L, a certain position is the centre position of heat exchanger tube length L.
Preferably, the constant-current stabilizer includes core and shell, in the shell, the shell is with changing for the core setting Heat pipe inner wall connection is fixed, and the core is composed of together a number of pipe adjoining.
Preferably, by setting insert in the space between shell and outermost layer pipe so that tight between pipe Close connection, while pipe is fixed in the shell.
Preferably, aperture is set to realize perforation between adjacent pipe.
Preferably, heat exchanger tube is welded for multi-segment structure, the junction setting constant-current stabilizer of multi-segment structure.
Preferably, the heat transfer tube wall setting groove, the shell of the constant-current stabilizer are arranged in groove, it is described outer The inner wall of shell and the aligning inner of heat exchanger tube.
Preferably, heat exchanger tube is welded for multi-segment structure, the junction setting constant-current stabilizer of multi-segment structure.
Preferably, the distance between adjacent constant-current stabilizer is S, the length of constant-current stabilizer is C, and the outer diameter of heat exchanger tube is W, The tube outer diameter of constant-current stabilizer is D, meets following requirement:
S/C=a-b*LN (W/D);Wherein LN is logarithmic function, and a, b are parameters, wherein 16<a<17,8<b<9;
The spacing of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer;
34<W<58mm;
7<D<12mm;
14<C<23mm;
50<S<70mm。
Preferably, a=16.7, b=8.5.
Compared with prior art, it is of the invention to have the following advantages:
1) flowing law of the invention according to the gas phase liquid phase in heat exchanger tube so that the spacing of the constant-current stabilizer first becomes larger After reduce, utmostly weaken the vibration of pipeline, reduce noise level, while reduce flow resistance.
2) present invention sets multitube constant-current stabilizer in heat exchanger tube, is detached two-phase fluid by multitube constant-current stabilizer Into liquid and gas, liquid phase is divided into small liquid group, gas phase is divided into minute bubbles, inhibits the reflux of liquid phase, promotes gas phase suitable Channel Group is moved, and plays the role of regime flow, has the effect of vibration and noise reducing.
3) present invention is equivalent in heat exchanger tube by setting multitube constant-current stabilizer and increases inner fin, enhance and change Heat improves heat transfer effect.
4) present invention avoids existing because gas-liquid two-phase is divided in the entire cross-section location of heat exchanger tube Only heat transfer tube wall face is split in technology, expands gas-liquid interface and gas phase so as 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.
5) present invention is by setting up the distance between adjacent constant-current stabilizer, the length of constant-current stabilizer in heat exchanger tube length side Degree, pipe the parameters size such as outer diameter rule variation, so as to further reach steady flow result, reduce noise, improve heat exchange effect Fruit.
6) present invention has been carried out widely by the rule that exchanges heat caused by the variation to multitube 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 structure 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 structure diagrams of the present invention;
Fig. 4 is that constant-current stabilizer of the present invention arranges 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.
Reference numeral is as follows:Front head 1, cover flange 2, front tube sheet 3, housing 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, pipe 51, constant-current stabilizer shell 51
Specific embodiment
The specific embodiment 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, "/" represents division, and "×", " * " represent multiplication.
If it should be noted that without specified otherwise, the two phase flow that the present invention mentions is biphase gas and liquid flow, gas herein Body is insoluble or slightly solubility gas, i.e., in heat transfer process, gas will not be dissolved in liquid.
A kind of shell-and-tube heat exchanger as shown in Figure 1, the shell-and-tube heat exchanger include housing 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;Multiple 6 groups of heat exchanger tubes being arranged in parallel Into 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;Before the tube side outlet 13 is arranged on On end socket 1;The shell side inlet take over 14 and shell-side outlet take over 15 is arranged on housing 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.
Setting is for the constant-current stabilizer 5 of damping noise reduction, the interior multiple current stabilizations of setting of same root heat exchanger tube 6 in the heat exchanger tube 6 Device 5, as shown in figure 4, along the flow direction (i.e. from the entrance of heat exchanger tube to the outlet of heat exchanger tube) of fluid in heat exchanger tube 6, Spacing first gradual increase between adjacent constant-current stabilizer 5, then until increasing to a certain position, then since a certain position The spacing of constant-current stabilizer is again gradual to be reduced.
Main cause is because containing on-condensible gas, therefore along the flow direction of fluid, on-condensible gas is still in fluid In the presence of, will not because heat exchange tube fluid heat release and condense.From 6 entrance of heat exchanger tube to 6 middle part of heat exchanger tube, because fluid seals in the past In first 1 entrance heat exchanger tube, in being flowed in the forepart of heat exchanger tube 6, the vibrations of fluid and noise are relatively few, therefore can incite somebody to action at this time steady The larger of the distance between device setting is flowed, can both realize damping and reduces noise, while also is able to reduce resistance.But From the middle part of heat exchanger tube backward, because in the presence of the variation from heat exchanger tube 6 to the space of 9 this section of rear head from small to large, this The variation of section can cause the quick of gas to flow upwards out and assemble, and liquid also can the quickly outflow of item lower part and aggregation, therefore empty Between variation can cause aggregation gas phase (air mass) enter end socket from tubesheet location, due to gas (vapour) liquid density contrast, air mass, which leaves, to be connect Pipe position will move rapidly upward, and air mass original spatial position is pushed away the liquid of wall surface while also will be sprung back and hit rapidly by air mass Wall surface is hit, forms impingement phenomenon.Gas (vapour) liquid phase is more discontinuous, and air mass aggregation is bigger, and water hammer energy is bigger.Impingement phenomenon can be made Into larger noise vibrations and mechanical shock, equipment is damaged.Therefore it in order to avoid the generation of this phenomenon, sets at this time The distance between adjacent constant-current stabilizer it is shorter and shorter, it is continuous to increase in fluid conveying so as to increase the density of constant-current stabilizer Separate gas phase and liquid phase in the process, so as to reduce vibrations and noise to the full extent.
Preferably, along the flow direction of heat exchange tube fluid, width that the length of the constant-current stabilizer 5 gradually reduces It spends increasing.
Preferably, along the flow direction of heat exchange tube fluid, the length of constant-current stabilizer 5 gradually get over by increased amplitude Come bigger.
It is found through experiments that, sets by doing so, can further reduce by 10% or so vibrations and noise, reduce simultaneously The resistance of flowing 5% or so.
Preferably, the length of heat exchanger tube is L, a certain position is the centre position of heat exchanger tube length L.
The structure of the bundled tube constant-current stabilizer 5 is shown in Fig. 3.As shown in figure 3, the constant-current stabilizer 5 includes core and shell 52, the core is arranged in shell 52, and the shell connect fixation with heat transfer tube wall, and the core is by a number of Parallel pipe 51 abuts to be composed together.
The present invention sets multitube constant-current stabilizer in heat exchanger tube, by multitube constant-current stabilizer by the liquid in two-phase fluid It is mutually detached with gas phase, 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 the role of regime flow, has the effect of vibration and noise reducing.
The present invention is equivalent in heat exchanger tube and increases inner fin, enhance heat exchange by setting multitube constant-current stabilizer, Improve heat transfer effect.
The present invention is because all cross-section locations of the gas-liquid two-phase in all heat exchanger tubes are divided, so as to entire Gas-liquid interface and the segmentation of 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, by setting insert in the space between shell 52 and outermost layer pipe 51, ensure pipe it Between closely connect, while ensure that pipe 51 is fixed in shell 52.
Preferably, adjacent pipe 51 is by being welded together.It is linked together, ensure that by welding manner Being connected firmly between pipe.
Preferably, aperture is set to realize perforation between adjacent pipe 51.By setting aperture, it is ensured that adjacent pipe It is interconnected between son, pressure that can uniformly between pipe so that the fluid of high pressure runner flows to low pressure, while can also be Fluid further separates liquid and gas while flowing, is conducive to further stablize two-phase flow.
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 it is increasingly longer to the distance between the middle part of heat exchanger tube, adjacent constant-current stabilizer, from the middle part of heat exchanger tube to heat exchanger tube The distance between outlet, adjacent constant-current stabilizer are shorter and shorter.I.e. the length of heat exchanger tube be L, the distance apart from heat exchange tube inlet For X, the distance between adjacent constant-current stabilizer is S, S=F1(X), S ' is the first order derivative of S, meets following requirement:
S’>0,0<=X<L/2;
S’<0,L/2<=X<=L;
Main cause is because containing on-condensible gas, therefore along the flow direction of fluid, on-condensible gas is still in fluid In the presence of, will not because heat exchange tube fluid heat release and condense.From 6 entrance of heat exchanger tube to 6 middle part of heat exchanger tube, because fluid seals in the past In first 1 entrance heat exchanger tube, in being flowed in the forepart of heat exchanger tube 6, the vibrations of fluid and noise are relatively few, therefore can incite somebody to action at this time steady The larger of the distance between device setting is flowed, can both realize damping and reduces noise, while also is able to reduce resistance.But From the middle part of heat exchanger tube backward, because in the presence of the variation from heat exchanger tube 6 to the space of 9 this section of rear head from small to large, this The variation of section can cause the quick of gas to flow upwards out and assemble, and liquid also can the quickly outflow of item lower part and aggregation, therefore empty Between variation can cause aggregation gas phase (air mass) enter end socket from tubesheet location, due to gas (vapour) liquid density contrast, air mass, which leaves, to be connect Pipe position will move rapidly upward, and air mass original spatial position is pushed away the liquid of wall surface while also will be sprung back and hit rapidly by air mass Wall surface is hit, forms impingement phenomenon.Gas (vapour) liquid phase is more discontinuous, and air mass aggregation is bigger, and water hammer energy is bigger.Impingement phenomenon can be made Into larger noise vibrations and mechanical shock, equipment is damaged.Therefore it in order to avoid the generation of this phenomenon, sets at this time The distance between adjacent constant-current stabilizer it is shorter and shorter, so as to constantly separate gas phase and liquid phase in fluid delivery process, from And vibrations and noise are reduced to the full extent.
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 distance between the middle part of heat exchanger tube, adjacent constant-current stabilizer increasingly Long amplitude is continuously increased, from the middle part of heat exchanger tube to the distance between the outlet of heat exchanger tube, adjacent constant-current stabilizer increasingly Short amplitude is continuously increased.That is S " is the second derivative of S, meets following requirement:
S”>0,0<=X<L/2;
S”>0,L/2<=X<=L;
It is found through experiments that, sets by doing so, can further reduce by 10% or so vibrations and noise, reduce simultaneously The resistance of flowing 5% or so.
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 The entrance of heat pipe 6 is to the middle part of heat exchanger tube 6, and the length of constant-current stabilizer 5 is shorter and shorter, from the middle part of heat exchanger tube 6 to heat exchanger tube 6 Outlet, the length of constant-current stabilizer 5 are increasingly longer.I.e. the length of constant-current stabilizer is C, C=F2(X), C ' is the first order derivative of C, full The following requirement of foot:
C’<0,0<=X<L/2;
C’>0,L/2<=X<=L;
Further preferably, from the entrance of heat exchanger tube to the middle part of heat exchanger tube, the shorter and shorter amplitude of the length of constant-current stabilizer It is continuously increased, from the middle part of heat exchanger tube to the outlet of heat exchanger tube, the amplitude that the length of constant-current stabilizer is increasingly longer is continuously increased.I.e. C " is the second derivative of C, meets following requirement:
C”>0,0<=X<L/2;
C”>0,L/2<=X<=L;
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) remain 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 The entrance of pipe 6 is to the middle part of heat exchanger tube 6, and the diameter of the pipe 51 in different constant-current stabilizers 5 is increasing, from the middle part of heat exchanger tube To the outlet of heat exchanger tube, the diameter of the pipe 51 in different constant-current stabilizers 5 is less and less.I.e. the pipe diameter of constant-current stabilizer is D, D=F3(X), D ' is the first order derivative of D, meets following requirement:
D’>0,0<=X<L/2;
D’<0,L/2<=X<=L;
Preferably, from the entrance of heat exchanger tube to the middle part of heat exchanger tube, the increasing width of the pipe diameter of constant-current stabilizer Degree is continuously increased, and from the middle part of heat exchanger tube to the outlet of heat exchanger tube, the amplitude that the pipe diameter of constant-current stabilizer is less and less is continuous Increase.I.e.
D " is the second derivative of D, meets following requirement:
D”>0,0<=X<L/2;
D”>0,L/2<=X<=L.
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 pipe diameter of constant-current stabilizer, constant-current stabilizer others parameter (such as it is length, adjacent steady The distance between stream device etc.) it remains unchanged.
Further preferably, as shown in figure 4,6 inside setting groove of the heat exchanger tube, the shell 52 of the constant-current stabilizer 5 are set It puts in groove.
Preferably, the aligning inner of the inner wall of shell 52 and heat exchanger tube 6.Pass through alignment so that heat transfer tube wall face table Reach on face in the same plane, ensure the smooth of surface.
Preferably, the thickness of shell 52 is less than the depth of groove, heat transfer tube wall face can be caused to form groove in this way, So as to carry out augmentation of heat transfer.
Further there is choosing, as shown in figure 5, heat exchanger tube 6 is welded for multi-segment structure, the junction setting of multi-segment structure is steady Flow device 5.This mode to set being simple to manufacture for the heat exchanger tube of constant-current stabilizer, cost reduction.
It is learnt by analyzing and testing, the spacing between constant-current stabilizer cannot be excessive, leads to damping noise reduction if excessive Effect it is bad, while can not be too small, cause resistance excessive if too small, similarly, the outer diameter of pipe can not it is excessive or Too 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, preferentially full The normal flow resistance of foot (total pressure-bearing be 2.5Mpa hereinafter, the on-way resistance of single heat exchange tube be less than or equal to 30Pa/m) In the case of so that being optimal of damping noise reduction has arranged the best relationship of parameters.
The distance between adjacent constant-current stabilizer is S, and the length of constant-current stabilizer is C, and the outer diameter of heat exchanger tube is W, constant-current stabilizer Tube outer diameter for D, meet following requirement:
S/C=a-b*LN (W/D);Wherein LN is logarithmic function, and a, b are parameters, wherein 16<a<17,8<b<9;Further It is preferred that 16.33<a<16.62 8.25<b<8.78;
The interval S of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer;I.e. front current stabilization fills The tail end put and the distance between front end of constant-current stabilizer below.Referring specifically to the mark of Fig. 4.
34mm<W<58mm;
7mm<D<12mm;
14mm<C<23mm;
50mm<S<70mm。
Preferably, heat exchanger tube length L is between 3000-9000mm.Further preferably, between 4500-6000mm.
Further preferably, 40mm<W<50mm;
9mm<D<10mm;
18mm<C<20mm;
55mm<S<60mm。
By the preferred of the best geometric scale of above-mentioned formula, can realize under the conditions of meeting normal flow resistance, Damping noise reduction reaches optimum efficiency.
Further preferably, as the increase of W/D, a are continuously increased, b constantly reduces.
Further preferably, as the increase of gaseous phase volume ratio, a constantly reduce, b constantly increases.
Preferably, the volume ratio of gas phase is no more than 30%.Further preferably it is no more than 20%.Further preferably exist Between 1%-10%.
Further preferably, a=16.7, b=8.5.
For other parameters, such as the parameters such as tube wall, housing wall thickness are according to normal standard setting.
Preferably, fluid is water in shell side.
Preferably, tube side inner fluid speed 2-4m/s.
Preferably, the length L of heat exchanger tube and the diameter of the housing ratio of heat exchanger are 6-10.
Preferably, pipe 51 extends in the whole length direction of constant-current stabilizer 5.I.e. the length of pipe 51 is filled equal to current stabilization Put 5 length.
Although the present invention has been disclosed in the preferred embodiments as above, 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 When being subject to claim limited range.

Claims (10)

1. a kind of shell-and-tube heat exchanger, including housing, the housing both ends set end socket, the connection of the end socket and housing respectively Position sets tube sheet, and heat exchanger tube connects the tube sheet at both ends, and the gas phase in biphase gas and liquid flow is insoluble or slightly solubility gas, that is, changes In thermal process, gas will not be dissolved in liquid, which is characterized in that and setting is used for the constant-current stabilizer of damping noise reduction in the heat exchanger tube, The multiple constant-current stabilizers of setting in same root heat exchanger tube, along the flow direction of heat exchange tube fluid, between adjacent constant-current stabilizer Away from first a certain position is gradually increased to, then the spacing since a certain position between adjacent constant-current stabilizer gradually subtracts again It is small.
2. shell-and-tube heat exchanger as described in claim 1, which is characterized in that along the flow direction of heat exchange tube fluid, institute It is increasing to state the amplitude that the spacing of adjacent constant-current stabilizer gradually reduces.
3. shell-and-tube heat exchanger as described in claim 1, which is characterized in that along the flow direction of heat exchange tube fluid, phase Gradually increased amplitude is increasing for the spacing of adjacent constant-current stabilizer.
4. shell-and-tube heat exchanger as described in claim 1, which is characterized in that the length of heat exchanger tube is L, and a certain position is The centre position of heat exchanger tube length.
5. shell-and-tube heat exchanger as described in claim 1, which is characterized in that the constant-current stabilizer includes core and shell, institute State core setting in the shell, the shell connect fixation with heat transfer tube wall, and the core is adjacent by a number of pipe It is connected together and is composed.
6. heat exchanger as claimed in claim 5, which is characterized in that by being set in the space between shell and outermost layer pipe Put insert so that closely connected between pipe, while pipe is fixed in the shell.
7. heat exchanger as claimed in claim 5, which is characterized in that aperture is set to realize perforation between adjacent pipe.
8. heat exchanger as claimed in claim 7, which is characterized in that heat exchanger tube is welded for multi-segment structure, multi-segment structure Junction sets constant-current stabilizer.
9. heat exchanger as described in claim 1, which is characterized in that the distance between adjacent constant-current stabilizer is S, constant-current stabilizer Length is C, and the outer diameter of heat exchanger tube is W, and the pipe diameter of constant-current stabilizer is D, meets following requirement:
S/C=a-b*LN (W/D);Wherein LN is logarithmic function, and a, b are parameters, wherein 16<a<17,8<b<9;
The spacing of wherein constant-current stabilizer is with the distance between opposite both ends of adjacent constant-current stabilizer;
34<W<58mm;
7<D<12mm;
14<C<23mm;
50<S<70mm。
10. heat exchanger as claimed in claim 9, which is characterized in that a=16.7, b=8.5.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN109539635A (en) * 2018-07-20 2019-03-29 山东大学 The shell-and-tube heat exchanger that separating device is unevenly arranged
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CN109668330A (en) * 2018-07-07 2019-04-23 青岛鑫众合贸易有限公司 A kind of solar water heater of condensation end equalizer flow tube caliber change
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CN107976093A (en) * 2017-04-21 2018-05-01 青岛金玉大商贸有限公司 A kind of non-condensable gas porous type constant-current stabilizer heat exchanger of spacing change
CN107976093B (en) * 2017-04-21 2019-03-29 青岛金玉大商贸有限公司 A kind of non-condensable gas porous type constant-current stabilizer heat exchanger of spacing variation
CN109668331B (en) * 2018-07-07 2020-05-12 青岛鑫众合贸易有限公司 Solar water heater for heating liquid medicine
CN109668331A (en) * 2018-07-07 2019-04-23 青岛鑫众合贸易有限公司 A kind of solar water heater of evaporation ends equalizer flow tube caliber change
CN109668330A (en) * 2018-07-07 2019-04-23 青岛鑫众合贸易有限公司 A kind of solar water heater of condensation end equalizer flow tube caliber change
CN109668330B (en) * 2018-07-07 2020-04-14 青岛鑫众合贸易有限公司 Solar water heater with variable pipe diameter of condensation end flow equalizing pipe
CN110864567A (en) * 2018-07-20 2020-03-06 山东大学 Balanced flow design method for digital variable heat exchanger
CN110864566A (en) * 2018-07-20 2020-03-06 山东大学 Design method for balanced flow of heat exchanger with variable pipe diameter
CN110793347A (en) * 2018-07-20 2020-02-14 山东大学 Shell-and-tube heat exchanger with optimized heat exchange tube space
CN109539635A (en) * 2018-07-20 2019-03-29 山东大学 The shell-and-tube heat exchanger that separating device is unevenly arranged
CN109539635B (en) * 2018-07-20 2020-06-26 山东大学 Shell-and-tube heat exchanger with unevenly arranged separating device
CN111412764A (en) * 2018-07-20 2020-07-14 山东大学 Design method of separating device in heat exchange tube for vapor-liquid two-phase flow
CN111412764B (en) * 2018-07-20 2021-09-21 山东大学 Design method of separating device in heat exchange tube for vapor-liquid two-phase flow

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