CN106949450B - A kind of three drum steam boilers - Google Patents
A kind of three drum steam boilers Download PDFInfo
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- CN106949450B CN106949450B CN201710254645.1A CN201710254645A CN106949450B CN 106949450 B CN106949450 B CN 106949450B CN 201710254645 A CN201710254645 A CN 201710254645A CN 106949450 B CN106949450 B CN 106949450B
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- 239000003381 stabilizer Substances 0.000 claims description 70
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 11
- 230000003416 augmentation Effects 0.000 abstract description 4
- 239000012071 phase Substances 0.000 description 23
- 239000007788 liquid Substances 0.000 description 22
- 239000012530 fluid Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 239000000203 mixture Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 239000007791 liquid phase Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 230000005514 two-phase flow Effects 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000011555 saturated liquid Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of steam boilers, including the first drum, the second drum and third drum, wherein the first drum is located at top, second drum is located at middle part, third drum is located at lower part, it is connected by the first tedge with down-comer between first drum and the second drum, is connected between the second drum and third drum by down-comer, connected between third drum and the first drum by the second tedge.The present invention provides a kind of three drum steam boilers of Novel structure, by the way that three drums are arranged, can make full use of the heat of various aspects, augmentation of heat transfer improves heat utilization efficiency.
Description
Technical field
The present invention is the project for entrusting colleges and universities to be researched and developed.The invention belongs to steam generation field more particularly to a kind of steamings
Boiler furnace belongs to the field IPC code F22.
Background technique
Receive heat from furnace and fluid is made to flow to high-order circuit referred to as " riser circuit " from low level, and receives heat
It measures and the circuit for making fluid flow to low level from a high position is referred to as " decline circuit ".One circuit is by a pipe or one group of pipe
Composition, this group of pipe draw from a common point, such as header or steamdrum, terminate at and be similarly public affairs as header or drum
Concurrent.
In the design of most of natural circulation boilers, the heat pipe of evaporation section is constituted generally for fluid flows upward, but
In more drum-type boilers, the downflow heated tube of steam-generating bank is quite different.In such boiler, downflow heated tube provides furnace
Whole circular flows of interior and steam-generating bank part tedge.
On the one hand, the fluid of tedge is during upwards, usually stream-liquid two-phase flow, so that the stream in tedge
Body is liquid-vapor mixture, and the presence of stream-liquid two-phase flow makes the efficiency for affecting tedge heat absorption.
On the other hand, this section of upper drum is exported to from tedge, because the space of this section becomes larger suddenly, the change in space
Change and will lead to quickly flowing upwards out and assemble for gas, therefore spatial variations will lead to the vapour phase of aggregation（Vapour group）From tedge position
It sets and enters upper drum, due to gas（Vapour）Liquid density contrast, air mass leaves adapter tube position and will move rapidly upward, and air mass original space bit
It sets and the liquid of wall surface is pushed away by air mass while will also spring back and hit wall surface rapidly, form impingement phenomenon.Gas（Vapour）Liquid phase is more not
Continuously, air mass aggregation is bigger, and Impact energy is bigger.Impingement phenomenon will cause biggish noise vibration and mechanical shock, to equipment
It damages.
In addition, boiler is in operation, good utilization not can be carried out for waste heats such as flue gases, generally using indirect utilization
Mode, such as by saving coal gas or air preheater etc., will cause waste heat waste in this way.
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new steam copper is provided
Furnace, to solve the problems, such as that tedge heat absorption efficiency is low.
Summary of the invention
The present invention provides a kind of new steam boilers, to solve the technical issues of front occurs.
To achieve the goals above, technical scheme is as follows：
A kind of steam boiler, including the first drum, the second drum and third drum, wherein the first drum is located at top, the
Two drums are located at middle part, and third drum is located at lower part, pass through the first tedge and down-comer between the first drum and the second drum
Connection is connected between the second drum and third drum by down-comer, is risen between third drum and the first drum by second
Pipe connection.
Preferably, the tedge of the first drum of connection and the second drum passes through flue, heated by flue residue heat.
Preferably, the tedge of connection third drum and the first drum is heated by burner hearth.
Preferably, header is arranged between third drum and the first drum, the header and third drum pass through third
Tedge connection, the header are connect with the first drum by the 4th tedge.
Preferably, constant-current stabilizer is arranged in the first tedge and/or in the second tedge, the constant-current stabilizer includes core
Body and shell, in the shell, the shell is connected and fixed with inside pipe wall is risen, and the core is by several numbers for the core setting
The pipe adjoining of amount is composed together.
Preferably, the constant-current stabilizer includes core and shell, the core setting in the shell, the shell with it is upper
Riser inner wall is connected and fixed, and the core is composed of together a number of pipe adjoining.
Preferably, by the way that insert is arranged in the space between shell and outermost layer pipe, so that tight between pipe
Close connection, while making pipe fixed in the shell.
Preferably, aperture is arranged between adjacent pipe realizes perforation.
Preferably, groove is arranged in the rising inside pipe wall, the shell of the constant-current stabilizer is arranged in groove, described outer
The inner wall of shell and the aligning inner of tedge.
Preferably, tedge is welded for multi-segment structure, constant-current stabilizer is arranged in the junction of multi-segment structure.
Preferably, the spacing between adjacent constant-current stabilizer is S, the length of constant-current stabilizer is C, and the outer diameter of tedge is W,
The pipe diameter of constant-current stabilizer is D, meets following require：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
Wherein the spacing of constant-current stabilizer is the both ends the distance between opposite with adjacent constant-current stabilizer；
34<W<58mm；
7<D<12mm;
19<C<27mm；
50<S<70mm。
Preferably, being A in the angle that tedge and horizontal plane are formed, then
C*S/C=a-b*LN (W/D)；c=1/sin(A)d, wherein 0.09<d<0.11,
20°<A<80°。
Preferably, d=0.10.
Preferably, groove is arranged in the rising inside pipe wall, the shell of the constant-current stabilizer is arranged in groove, described outer
The inner wall of shell and the aligning inner of tedge.
Preferably, tedge is welded for multi-segment structure, constant-current stabilizer is arranged in the junction of multi-segment structure.
Compared with prior art, the present invention has the advantage that：
1）The present invention may be implemented to realize more than heap flue gas between the first drum and the second drum by three drums of setting
The direct utilization of heat, directly heats the fluid in tedge, avoids the indirect utilization of fume afterheat, improves heat utilization effect
Rate.
2）The present invention is changed by the length of constant-current stabilizer, there are when Gas- liquid two-phase flow in tedge, augmentation of heat transfer,
Weaken the vibration of tedge simultaneously, reduces noise level.
3）Multitube constant-current stabilizer is arranged in the present invention in tedge, is separated two-phase fluid by multitube constant-current stabilizer
At liquid phase and vapour phase, liquid phase is divided into small liquid group, vapour phase is divided into minute bubbles, promotes vapour phase smooth outflow, plays stabilization
The effect of flow has the effect of vibration and noise reducing, improves heat transfer effect.
4）The present invention is equivalent in tedge by setting multitube constant-current stabilizer and increases inner fin, enhanced and changed
Heat improves heat transfer effect.
5）The present invention avoids only because vehicle repair major is divided in the entire cross-section location of tedge
Tedge inner wall is split, thus entirely rise realized on tube section expand liquid-vaqor interface and vapour phase boundary layer with it is cold
But the contact area of wall surface and enhance disturbance, reduce noise and vibration, enhance heat transfer.
6）The present invention passes through the distance that is arranged between adjacent constant-current stabilizer on tedge fluid flow direction, constant-current stabilizer
The rule variation of length, the parameters size such as outer diameter of pipe reduce noise to further reach steady flow result, raising is changed
Thermal effect.
7）The present invention has been carried out widely by heat exchange rule caused by the variation to multitube constant-current stabilizer parameters
Research, when meeting flow resistance, realizes the best relation formula of the effect of vibration and noise reducing.
Detailed description of the invention
Fig. 1 is steam boiler structural schematic diagram of the invention；
Fig. 2 is another embodiment schematic diagram of steam boiler structure of the invention；
Fig. 3 constant-current stabilizer cross-sectional structure schematic diagram of the present invention；
Fig. 4 is constant-current stabilizer of the present invention arrangement schematic diagram in tedge；
Fig. 5 is another schematic diagram that constant-current stabilizer of the present invention is arranged in tedge.
In figure：1, upper drum, 2, lower drum, 3, tedge, 4, constant-current stabilizer, 41 shells, 42 pipes, 5, down-comer, 6
Down-comer, 7 lower drums, 8 tedges, 9 tedges, 10 fire box, 11 outlet headers, 12 flues.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.
A kind of further steam boiler as described in Figure 1, including upper drum 1 and lower drum 2, the tedge 3 and decline
Pipe 5 connects upper drum 1 and lower drum 2.Water enters in down-comer 5 from upper drum 1.Water flows downward in the downcomer, and is received
Collection is in the lower drum 2 of tube bank.The tedge 3 of boiler is heated by the burning of fuel in fire box 10.It is inhaled by tedge 3
The heat of receipts makes the liquid boiling in pipe, thus generates the two-phase mixture of water and vapour.Two-phase mixture in tedge 3 reaches
Upper drum 1.Water supplying pipe from upper drum 1（It is not shown）The subcooled water of releasing and the saturated liquid released from separator are mixed
It is combined to form subcooled liquid, subcooled liquid flows out upper drum 1 and enters down-comer 5, just completes one according to such process
A flow circuit.
The further steam boiler of another embodiment as described in Figure 2, including upper drum 1 and lower drum 2, the rising
Pipe 3 and down-comer 5 connect upper drum 1 and lower drum 2.Water enters steam-generating bank of being heated in smokejack 12 in furnace from upper drum 1
In down-comer 5.Water flows downward in the downcomer, and is collected in lower drum 2.Since down-comer 5 absorbs heat, so
The temperature for entering the water in lower drum 2 increases.According to the number of absorbed heat, the water in lower drum 2 can be supercooling or
Person's saturation.Leave the fluid of lower drum 2（General steam water interface）A part flows upwardly into the tedge 3 of steam-generating bank.
The liquid for flowing upwardly into tedge 3 absorbs heat and enters upper drum 1.
The fluid a part for leaving lower drum 2 reaches burner hearth lower drum 7 by down-comer 6.Enter the liquid of a lower drum 7
Body is distributed in each boiler tube 8 being connected with the lower drum 7.Boiler tube is heated by the burning of fuel in fire box 10.By furnace
The heat that pipe 8 absorbs makes the liquid boiling in boiler tube 8, thus generates the two-phase mixture of water and vapour.Two-phase mixtures in boiler tube 8
Object or the boiler tube 8 by being directly connected to upper drum 1 reach upper drum 1, the namely tedge of boiler tube 8 at this time, Huo Zhe
Outlet header 11 be arranged in lower drum 7 and upper drum 1 so far, by intermediate tedge 9 by two-phase mixture from burner hearth circuit out
Mouth header 11 is transmitted to upper drum 1.Inside separator in upper drum 1 separates two-phase mixture into vapour and water.From upper
Water supplying pipe in drum 1（It is not shown）The subcooled water of releasing and the saturated liquid released from separator mix to be formed
Subcooled liquid, subcooled liquid flow out upper drum 1 and enter down-comer 5, just complete a flow circuit according to such process.
The steam-generating bank of steam boiler, the selected burner hearth furnace wall washed away by combustion-gas flow and convection current furnace wall are come
Say, it is desirable that guarantee a critical inputs heat so that fluid in tube bank and convection current furnace wall circuit in all pipe sufficiently to
Upper circulation and the unstability that will not occur flowing.
Constant-current stabilizer 4, the constant-current stabilizer 4 such as Fig. 3 are set in the tedge 3 and/or tedge 8 and/or tedge 9
It is shown, including core 42 and shell 41, in shell 41, the shell 41 is connect with 3 inner wall of tedge for the setting of core 42
Fixed, the core is composed of together a number of adjoining of pipe 42.
Multitube constant-current stabilizer is arranged in the present invention in tedge, by multitube constant-current stabilizer by the liquid in two-phase fluid
It is mutually separated with vapour phase, liquid phase is divided into small liquid group, vapour phase is divided into minute bubbles, avoid dividing completely for liquid phase and vapour phase
It opens, promotes liquid vapor phase smooth outflow, play the role of regime flow, have the effect of vibration and noise reducing.
Mentioned tedge below, is all at least one of tedge 3, tedge 8 and tedge 9.
The present invention is equivalent to by setting multitube constant-current stabilizer and increases inner fin in tedge 3, enhanced and changed
Heat improves heat transfer effect.
The present invention is because all cross-section locations by vehicle repair major in tedge 3 are divided, thus on entire
The segmentation of liquid-vaqor interface and vapour phase boundary layer and the contact area of cooling wall are realized on riser cross section and enhances disturbance, significantly
Reduce noise and vibration, enhance heat transfer.
Preferably, guaranteeing pipe by the way that insert is arranged in the space 43 between shell 42 and outermost layer pipe 41
Between closely connect, while guaranteeing that pipe 41 is fixed in shell 42.
Preferably, adjacent pipe 41 is by being welded together.It is linked together, be ensure that by welding manner
Being connected firmly between pipe 41.
Preferably, aperture is arranged between adjacent pipe 41 realizes perforation.By the way that aperture is arranged, 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 phase and vapour phase while flowing, is conducive to further stablize two-phase flow.
Preferably, along the flow direction of fluid in tedge 3（That is the short transverse of Fig. 3）, setting is more in tedge 3
A constant-current stabilizer 4, from the entrance of tedge to the outlet of tedge, the distance between adjacent constant-current stabilizer is shorter and shorter.If away from
It is H with a distance from tube inlet from rising, the spacing between adjacent constant-current stabilizer is S, S=F1(H), i.e. S is using distance H as variable
Function, S ' are the first order derivatives of S, meet following require：
S’<0;
Main cause is that carrier's liquid is understood in uphill process because of the steam in tedge, in uphill process, on
Riser is constantly heated, and causes the steam in biphase gas and liquid flow more and more, because the vapour phase in stream-liquid two-phase flow is more and more,
Exchange capability of heat in tedge can increase with vapour phase and weaken relatively, and vibration and its noise also can be continuous with vapour phase increase
Increase.Therefore the distance between the adjacent constant-current stabilizer for needing to be arranged is shorter and shorter.
In addition, this section of outlet header 11 is exported to from tedge 8, also from tedge 9 and 3 to this section of upper drum 1,
Because the space of this section becomes larger suddenly, the variation in space will lead to quickly flowing upwards out and assemble for gas, therefore space becomes
Change the vapour phase that will lead to aggregation（Vapour group）Enter condensation collector from tedge position, due to gas（Vapour）Liquid density contrast, air mass leave
Adapter tube position will move rapidly upward, and air mass original spatial position is pushed away the liquid of wall surface while will also be sprung back rapidly simultaneously by air mass
Wall surface is hit, impingement phenomenon is formed.Gas（Vapour）Liquid phase is more discontinuous, and air mass aggregation is bigger, and water hammer energy is bigger.Impingement phenomenon meeting
Biggish noise vibration and mechanical shock are caused, equipment is damaged.Therefore it in order to avoid the generation of this phenomenon, sets at this time
The distance between the adjacent constant-current stabilizer set is shorter and shorter, thus constantly separate gas phase and liquid phase in fluid delivery process,
To reduce vibration and noise to the full extent.
It is found through experiments that, by above-mentioned setting, can both reduce vibration and noise to the full extent, while can mention
High heat transfer effect.
Further preferably, from the entrance of tedge to the outlet of tedge, the distance between adjacent constant-current stabilizer is increasingly
Short 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 being improved simultaneously so set, 9% or so vibration and noise can be further decreased
7% or so heat transfer effect.
Preferably, the length of each constant-current stabilizer 4 remains unchanged.
Preferably, other than the distance between adjacent constant-current stabilizer 4, constant-current stabilizer others parameter（Such as length,
Caliber etc.）It remains unchanged.
Preferably, the flow direction of the interior fluid along tedge（Fluid is flowed to upper direction）, set in tedge
Multiple constant-current stabilizers 5 are set, from the entrance of tedge to the outlet of tedge, the length of constant-current stabilizer 5 is increasingly longer.I.e. current stabilization fills
The length set is C, C=F2(X), C ' is the first order derivative of C, meets following require：
C’>0;
Further preferably, from the entrance of tedge to the outlet of tedge, the increasingly longer amplitude of the length 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, the flow direction of the interior fluid along tedge（Fluid is flowed to upper direction）, set in tedge
Multiple constant-current stabilizers are set, from the entrance of tedge to the outlet of tedge, the diameter of the pipe 51 in different constant-current stabilizers 5 is more next
It is smaller.I.e. the pipe diameter of constant-current stabilizer is D, D=F3(X), D ' is the first order derivative of D, meets following require：
D’<0;
Preferably, from the entrance of tedge to the outlet of tedge, the smaller and smaller width of the pipe diameter 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 pipe diameter of constant-current stabilizer, constant-current stabilizer others parameter（Such as it is length, adjacent steady
Flow the distance between device etc.）It remains unchanged.
Further preferably, as shown in figure 4, groove is arranged inside the tedge, the shell 42 of the constant-current stabilizer 4 is arranged
In groove.
Preferably, the inner wall of shell 42 and the aligning inner of tedge.By alignment, so that tedge inner wall surface
On reach in the same plane, guarantee the smooth of surface.
Preferably, the thickness of shell 42 is less than the depth of groove, tedge inner wall can be made to form groove in this way,
To carry out augmentation of heat transfer.
Further preferably, as shown in figure 5, tedge is welded for multi-segment structure, the junction setting of multi-segment structure is steady
Flow device 4.This mode makes being simple to manufacture for the tedge that constant-current stabilizer is arranged, and cost reduces.
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 riser be less than or equal to 5Pa/M）'s
In the case of, so that being optimal of damping noise reduction, has arranged the optimal relationship of parameters.
Spacing between adjacent constant-current stabilizer is S, and the length of constant-current stabilizer is C, and the outer diameter of tedge is W, constant-current stabilizer
Tube outer diameter be D, meet following require：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
Further preferred 5.1<a<5.5,1.6<b<1.8；
Wherein the interval S of constant-current stabilizer is the both ends the distance between opposite with adjacent constant-current stabilizer；I.e. front current stabilization fills
The distance between the front end of the tail end set and constant-current stabilizer below.Referring specifically to the mark of Fig. 5.
34mm<W<58mm；
7mm<D<12mm;
19mm<C<27mm；
50mm<S<70mm。
Preferably, rising length of tube L between 3000-8500mm.Further preferably, between 4500-5500mm.
Further preferably, 40mm<W<50mm；
9mm<D<10mm;
22mm<C<25mm；
55mm<S<60mm。
By the preferred of the optimal geometric scale of above-mentioned formula, can be realized under the conditions of meeting normal flow resistance,
Damping noise reduction reaches optimum efficiency.
Further preferably, as the increase of W/D, a constantly reduce, b constantly increases.
Further preferably, a=5.31, b=1.75.
For parameters such as other parameters, such as tube wall, shell wall thickness according to normal standard setting.
Preferably, pipe 41 extends in the whole length direction of constant-current stabilizer 4.I.e. the length of pipe 41 is filled equal to current stabilization
Set 5 length.
Preferably, the caliber of the evaporation collector 1 is less than the caliber of condensation collector 2.
The internal diameter for evaporating collector is R1, and the internal diameter for condensing collector is R2, as preferably then 0.45<R1/R2<0.88.
By above-mentioned setting, can further augmentation of heat transfer, can be improved 7% or more heat exchange efficiency.
Preferably, correction factor c can be increased to data when the angle that tedge and horizontal plane are formed is A
It is modified, i.e.,
C*S/C=a-b*LN (W/D)；c=1/sin(A)d, wherein 0.09<d<0.11, preferably d=0.10.
20°<A<80 °, preferably 40-60 °.
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 defined by the scope defined by the claims..
Claims (4)
1. a kind of steam boiler, including the first drum, the second drum and third drum, wherein the first drum is located at top, second
Drum is located at middle part, and third drum is located at lower part, is connected between the first drum and the second drum by the first tedge and down-comer
It connects, is connected between the second drum and third drum by down-comer, pass through the second tedge between third drum and the first drum
Connection；Constant-current stabilizer is set in the first tedge and/or in the second tedge, and the constant-current stabilizer includes core and shell, institute
State core setting in the shell, the shell is connected and fixed with inside pipe wall is risen, and the core is adjacent by a number of pipe
It is connected together and is composed；Spacing between adjacent constant-current stabilizer is S, and the length of constant-current stabilizer is C, and the outer diameter of tedge is W,
The pipe diameter of constant-current stabilizer is D, meets following require：
S/C=a-b*LN (W/D)；Wherein LN is logarithmic function, and a, b are parameters, wherein 4.8<a<5.8,1.4<b<2.0；
Wherein the spacing of constant-current stabilizer is the both ends the distance between opposite with adjacent constant-current stabilizer；
34<W<58mm；
7<D<12mm；
19<C<27mm；
50<S<70mm。
2. steam boiler as described in claim 1, which is characterized in that the tedge of the first drum of connection and the second drum passes through
Flue is heated by flue residue heat.
3. steam boiler as described in claim 1, which is characterized in that the tedge of connection third drum and the first drum passes through
Burner hearth heating.
4. steam boiler as described in claim 1, which is characterized in that header, institute are arranged between third drum and the first drum
The header stated is connect with third drum by third tedge, and the header is connect with the first drum by the 4th tedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254645.1A CN106949450B (en) | 2017-04-18 | 2017-04-18 | A kind of three drum steam boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN106949449B (en) * | 2017-04-21 | 2018-05-18 | 中北大学 | A kind of steam boiler |
| CN108332181B (en) * | 2017-08-02 | 2019-03-08 | 青岛金玉大商贸有限公司 | A kind of steam boiler |
| CN108332179B (en) * | 2017-08-02 | 2019-04-19 | 青岛金玉大商贸有限公司 | A kind of steam boiler |
| CN109945148B (en) * | 2018-06-20 | 2020-06-12 | 青岛佰腾科技有限公司 | Steam boiler |
| CN109882821B (en) * | 2018-06-20 | 2020-04-07 | 青岛佰腾科技有限公司 | Ascending pipe spacing optimization design method |
| CN111099678B (en) * | 2018-10-29 | 2021-08-20 | 山东大学 | Fresh water collection method for seawater desalination |
| CN109231320B (en) * | 2018-10-29 | 2020-02-21 | 山东大学 | Steady flow evaporator and seawater desalination system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051076A (en) * | 1989-10-17 | 1991-05-01 | 巴布考克和威尔科斯公司 | Rise or downflow heated tube circulating system |
| CN2901053Y (en) * | 2006-04-29 | 2007-05-16 | 林国策 | Small low pressure steam boiler |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
-
2017
- 2017-04-18 CN CN201710254645.1A patent/CN106949450B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051076A (en) * | 1989-10-17 | 1991-05-01 | 巴布考克和威尔科斯公司 | Rise or downflow heated tube circulating system |
| CN2901053Y (en) * | 2006-04-29 | 2007-05-16 | 林国策 | Small low pressure steam boiler |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
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