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 PDFInfo
- 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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- heat exchanger
- constant
- tube
- current stabilizer
- shell
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 102
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000012546 transfer Methods 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000005514 two-phase flow Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 45
- 239000012071 phase Substances 0.000 description 23
- 239000007791 liquid phase Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000002776 aggregation Effects 0.000 description 6
- 238000004220 aggregation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000003416 augmentation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000002075 main ingredient 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
- 239000003345 natural gas Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F28D7/1615—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 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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
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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| Application Number | Priority Date | Filing Date | Title |
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| CN201710168109.XA CN108204751B (en) | 2017-03-21 | 2017-03-21 | A kind of non-condensable gas pipe heat exchanger of constant-current stabilizer spacing variation |
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| CN201710168109.XA CN108204751B (en) | 2017-03-21 | 2017-03-21 | A kind of non-condensable gas pipe heat exchanger of constant-current stabilizer spacing variation |
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| CN108204751A true CN108204751A (en) | 2018-06-26 |
| CN108204751B CN108204751B (en) | 2019-03-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN109539635A (en) * | 2018-07-20 | 2019-03-29 | 山东大学 | The shell-and-tube heat exchanger that separating device is unevenly arranged |
| 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 |
| 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 |
| CN110864567A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Balanced flow design method for digital variable heat exchanger |
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| US20120057964A1 (en) * | 2009-12-31 | 2012-03-08 | Guangdong Liansu Technology Industrial Co., Ltd. | Impeller type water-hammer proof and silent check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN110793347A (en) * | 2018-07-20 | 2020-02-14 | 山东大学 | Shell-and-tube heat exchanger with optimized heat exchange tube space |
| CN110864566A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Design method for balanced flow of heat exchanger with variable pipe diameter |
| CN110864567A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Balanced flow design method for digital variable heat exchanger |
| 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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