CN106949449A - A kind of steam boiler - Google Patents
A kind of steam boiler Download PDFInfo
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- CN106949449A CN106949449A CN201710267623.9A CN201710267623A CN106949449A CN 106949449 A CN106949449 A CN 106949449A CN 201710267623 A CN201710267623 A CN 201710267623A CN 106949449 A CN106949449 A CN 106949449A
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- constant
- tedge
- current stabilizer
- distance
- steam boiler
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- 239000003381 stabilizer Substances 0.000 claims abstract description 88
- 230000000630 rising effect Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 23
- 238000012546 transfer Methods 0.000 abstract description 11
- 230000005514 two-phase flow Effects 0.000 abstract description 7
- 230000003416 augmentation Effects 0.000 abstract description 4
- 230000003313 weakening effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 24
- 239000012530 fluid Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000007789 gas Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 239000007791 liquid phase Substances 0.000 description 7
- 230000009467 reduction 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
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009835 boiling Methods 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 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
- 238000013461 design Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000010354 integration Effects 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
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/02—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes
- F22B21/14—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes involving a single upper drum and two or more lower drums
-
- 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
- F22B37/10—Water tubes; Accessories therefor
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)
- Cookers (AREA)
Abstract
The invention provides a kind of steam boiler, including upper drum and lower drum and the tedge and down-comer that are connected between upper drum and lower drum, constant-current stabilizer is set in the tedge, the constant-current stabilizer includes core body and shell, the core body is arranged in shell, the shell is connected with rising inside pipe wall, and the core body is to be provided with a number of through hole on the integral structure part extended along outer cover length direction, the structural member.The present invention provides a kind of steam boiler of the constant-current stabilizer of Novel structure, when there is Gas- liquid two-phase flow in tedge, augmentation of heat transfer, while weakening the vibration of tedge, reduces noise level.
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 steaming
Boiler furnace, belongs to IPC code F22 fields.
Background technology
Receive heat from stove and fluid is referred to as " riser circuit " from the loop that low level flows to a high position, and receive heat
Measure and fluid is referred to as in " decline loop " from the high-order loop for flowing to low level.One loop is by a pipe or one group of pipe
Composition, this group of pipe is drawn from a common point, such as header or steamdrum, is terminated at and is similarly public as header or drum
Concurrent.
In the design of most of natural circulation boilers, the heat pipe for constituting evaporation section is typically for fluid flows upward, but
In many drum-type boilers, the downflow heated tube of steam-generating bank is quite different.In such boiler, downflow heated tube provides stove
Whole circular flows of the tedge of interior and steam-generating bank part.
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 causes the efficiency that have impact on tedge heat absorption.
On the other hand, upper drum this section is exported to from tedge, because the space of this section becomes big, the change in space suddenly
Changing can cause the quick of gas to flow upwards out and assemble, therefore spatial variations can cause the vapour phase of aggregation（Vapour group）From tedge position
Put and enter upper drum, due to gas（Vapour）Liquid density contrast, air mass leaves adapter position and will moved rapidly upward, and the former space bit of air mass
Put and the liquid of wall is pushed away while also by rapid resilience and hitting wall by air mass, form impingement phenomenon.Gas（Vapour）Liquid phase is more not
Continuously, air mass aggregation is bigger, and Impact energy is bigger.Impingement phenomenon can cause larger noise to shake and mechanical shock, to equipment
Damage.
The present inventor also devises a kind of multitube constant-current stabilizer in above applying, shown in Figure 7.But such a dress
Put and find in operation, because be to be closely linked between pipe, therefore the space A formed between three pipes is relatively
It is small, because the convex arc that space A is three pipes is formed, therefore space A most of area stenosis, fluid can be caused to be difficult to enter
Pass through, cause fluid short, so as to have impact on the heat exchange of fluid, it is impossible to play good current stabilization effect.Simultaneously as above-mentioned knot
Together, manufacture is difficult for many tube combinations of structure.
Regarding to the issue above, the present invention carried out on the basis of above invention improve there is provided a kind of new steam copper
Stove, so as to solve the problem of tedge heat absorption efficiency is low.
The content of the invention
The invention provides a kind of new steam boiler, so as to solve the technical problem above occurred.
To achieve these goals, technical scheme is as follows：
A kind of steam boiler, including upper drum and lower drum and the tedge being connected between upper drum and lower drum and decline
Pipe；Constant-current stabilizer is set in the tedge, and the constant-current stabilizer includes core body and shell, and the core body is arranged in shell,
The shell is connected with rising inside pipe wall, and the core body is the integral structure part extended along outer cover length direction, institute
State and a number of through hole is provided with structural member.
Preferably, the through hole is circular, the distance between adjacent through hole center of circle L1>2R, wherein R are insertions
Pore radius.
Preferably, setting aperture between adjacent through hole, the connection between through hole is realized by aperture.
Preferably, setting multiple constant-current stabilizers in tedge, the distance that distance rises tube inlet is H, adjacent current stabilization dress
Spacing between putting is S, S=F1(H) following require, is met：
S’<0, S”>0。
Preferably, setting multiple constant-current stabilizers in tedge, the distance that distance rises tube inlet is H, constant-current stabilizer
Length is C, C=F2(H) following require, is met：
C’>0, C”>0。
Preferably, setting multiple constant-current stabilizers in tedge, the distance that distance rises tube inlet is H, constant-current stabilizer
Through hole a diameter of D, D=F3(H) following require, is met：
D’<0, D”>0。
Preferably, the rising inside pipe wall sets groove, the shell of the constant-current stabilizer is arranged in groove, described outer
The inwall of shell and the aligning inner of tedge.
Preferably, tedge is welded for multi-segment structure, the junction of multi-segment structure sets constant-current stabilizer.
Preferably, the distance between adjacent constant-current stabilizer is S, the length of constant-current stabilizer is C, and the external diameter of heat exchanger tube is W,
The radius of through hole is R, the distance between adjacent through hole center of circle L1, meets following require：
S/C=a-b*LN (W/（2*R）)；
L1/（2*R） =c*(W/（2*R）)-d*(W/（2*R）)2-e
Wherein LN is logarithmic function, a, b, c, and d, e is parameter, wherein 3.0<a<3.5,0.5<b<0.6；2.9<c<3.1,0.33<d
<0.37,4.8<e<5.3；
The spacing of wherein constant-current stabilizer is with the distance between relative two ends of adjacent constant-current stabilizer；
34<W<58mm；
4<R<6mm;
17<C<25mm；
32<S<40mm；
1.05<L1/（2*R）<1.25.
Preferably, a=3.20, b=0.54, c=3.03, d=0.35, e=5.12.
Compared with prior art, the present invention has the advantage that：
1）The present invention sets porous type constant-current stabilizer in tedge, and two-phase fluid is separated into liquid by porous type constant-current stabilizer
Phase and vapour phase, are divided into small liquid group by liquid phase, vapour phase are divided into minute bubbles, promote vapour phase smooth outflow, play regime flow
Effect, the effect with vibration and noise reducing, improve heat transfer effect.Relative to multitube constant-current stabilizer, current stabilization effect is further improved
Really, augmentation of heat transfer, and be simple to manufacture.
2）The present invention, equivalent to inner area is added in tedge, is enhanced and changed by setting porous type constant-current stabilizer
Heat, improves heat transfer effect.
3）The present invention is because vehicle repair major is split in the whole cross-section location of tedge, it is to avoid only
Tedge internal face 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 and strengthen disturbance, reduce noise and vibrations, enhance heat transfer.
4）The present invention in tedge short transverse by setting distance between adjacent constant-current stabilizer, the length of constant-current stabilizer
The rule change of the parameter sizes such as degree, the external diameter of through hole, so as to further up to steady flow result, reduce noise, improves heat exchange
Effect.
5）The present invention has been carried out widely by the rule that exchanged heat caused by the change to porous type constant-current stabilizer parameters
Research, in the case of flow resistance is met, realizes the best relation formula of the effect of vibration and noise reducing.
Brief description of the drawings
Fig. 1 is the steam boiler structural representation of the present invention；
Fig. 2 is another embodiment schematic diagram of the steam boiler structure of the present invention；
Fig. 3 constant-current stabilizer cross-sectional structure schematic diagrames of the present invention；
Fig. 4 is that constant-current stabilizer of the present invention arranges schematic diagram in tedge；
Fig. 5 is another schematic diagram that constant-current stabilizer of the present invention is arranged in tedge.
Fig. 6 is that constant-current stabilizer of the present invention arranges cross-sectional view in tedge.
Fig. 7 is the structural representation of the two-phase flow tube shell type heat exchanger in background technology.
In figure：1st, upper drum, 2, lower drum, 3, tedge, 4, constant-current stabilizer, 41 shells, 42 holes, 43 structural members, 5,
Down-comer, 6 down-comers, 7 lower drums, 8 tedges, 9 tedges, 10 fire box, 11 outlet headers, 12 flues.
Embodiment
The embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, being related to formula, "/" represents division, and "×", " * " represent multiplication.
A kind of steam boiler as described in Figure 1, including upper drum 1 and lower drum 2, the tedge 3 and down-comer 5 are connected
Upper drum 1 and lower drum 2.Water enters in down-comer 5 from upper drum 1.Water flows downward in down-comer, and is collected in and cooks
In cylinder 2.The tedge 3 of boiler is heated by the burning of fuel in fire box 10.The heat absorbed by tedge 3 makes in pipe
Liquid boiling, thus generate the two-phase mixture of water and vapour.Two-phase mixture in tedge 3 reaches upper drum 1.From upper pot
Feed pipe in cylinder 1（It is not shown）The subcooled water of releasing and the saturated liquid released from separator mix to be formed
Cold liquid, subcooled liquid outflow upper drum 1 enters down-comer 5, and a flow circuit is just completed according to such flow.
The further steam boiler of another embodiment as described in Figure 2, including upper drum 1 and lower drum 2, it is described to rise
Pipe 3 and the connection upper drum 1 of down-comer 5 and lower drum 2.Water enters steam-generating bank of being heated in stove in smokejack 12 from upper drum 1
In down-comer 5.Water flows downward in down-comer, and is collected in lower drum 2.Because down-comer 5 absorbs heat, so
Enter the temperature rise of the water in lower drum 2.According to absorbed heat number, 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 is flowed 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 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 stove
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
Thing reaches upper drum 1, the namely tedge of boiler tube 8 now, Huo Zhe by the boiler tube 8 being directly connected to upper drum 1
Lower drum 7 and upper drum 1 set outlet header 11 so far, by middle tedge 9 by two-phase mixture going out from burner hearth loop
Mouth header 11 is sent to upper drum 1.Inside separator in upper drum 1 separates two-phase mixture into vapour and water.From upper
Feed 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 outflow upper drum 1 enters down-comer 5, and a flow circuit is just completed according to such flow.
Steam-generating bank, the selected burner hearth furnace wall washed away by combustion-gas flow and convection current furnace wall for steam boiler come
Say, it is desirable to ensure a critical inputs heat so that in fluid pipe all in tube bank and convection current furnace wall loop fully to
Upper circulation and the unstability that flowing will not be produced.
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
Shown, the constant-current stabilizer 4 includes core body and shell 41, and the core body is arranged in shell 41, in the shell and tedge
Wall is connected, and the core body is provided with the integral structure part 43 extended along outer cover length direction, the structural member
A number of through hole 42.
The present invention sets porous type constant-current stabilizer in tedge, by porous type constant-current stabilizer by the liquid in two-phase fluid
Mutually separated with vapour phase, liquid phase is divided into small liquid group, vapour phase is divided into minute bubbles, it is to avoid liquid phase and vapour phase are divided completely
Open, promote liquid vapor phase smooth outflow, play a part of regime flow, the effect with vibration and noise reducing.It is steady relative to multitube
Device is flowed, steady flow result, augmentation of heat transfer is further improved, and be simple to manufacture.
Mentioned tedge, is all at least one in tedge 3, tedge 8 and tedge 9 below.
The present invention, equivalent to interior heat exchange area is added in tedge 3, is enhanced by setting porous type constant-current stabilizer
Heat exchange, improves heat transfer effect.
The present invention is because all cross-section locations by vehicle repair major in tedge 3 are split, so that on whole
Liquid-vaqor interface and the segmentation in vapour phase boundary layer and the contact area of cooling wall are realized on riser cross section and strengthens disturbance, significantly
Reduce noise and vibrations, enhance heat transfer.
Preferably, the through hole is circular, the distance between adjacent through hole center of circle L1>2R, wherein R are insertions
Pore radius.
Pass through the distance between through hole center of circle L1>2R so that maintained a certain distance between adjacent through hole 42, from
And ensure each hole and preferably separate two phase flow fluid.
Preferably, the core body is the structural member that integration is processed.By setting porous core body, system can be caused
Make simple.
Preferably, setting aperture to realize insertion between adjacent through hole 42.By setting aperture, it is ensured that adjacent
Interconnected between through hole, pressure that can uniformly between through hole so that the fluid of high pressure runner flows to low pressure, while
Liquid phase and vapour phase can further be separated while flow of fluid, be conducive to further stablizing two-phase flow.
Preferably, along the flow direction of fluid in tedge 3（That is Fig. 3 short transverse）, tedge 3 is interior to set many
Individual 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
From being H with a distance from rising tube inlet, the spacing between adjacent constant-current stabilizer is S, S=F1(H), i.e. S be using apart from H as variable
Function, S ' is S first order derivative, meets following require：
S’<0;
Main cause is because the gas in tedge understands carrier's liquid, in uphill process, tedge in uphill process
It is constantly heated, cause the gas in biphase gas and liquid flow more and more, because the vapour phase in stream-liquid two-phase flow is more and more, rise
Exchange capability of heat in pipe can increase with vapour phase and weaken relatively, and vibrations and its noise also can constantly increase as vapour phase increases
Plus.Therefore need the distance between the adjacent constant-current stabilizer of setting shorter and shorter.
In addition, exporting to outlet header 11 this section from tedge 8, also have from tedge 9 and 3 to this section of upper drum 1,
Because the space of this section becomes big suddenly, the change in space can cause the quick of gas to flow upwards out and assemble, therefore space becomes
The vapour phase of aggregation can be caused by changing（Vapour group）Enter condensation collector from tedge position, due to gas（Vapour）Liquid density contrast, air mass leaves
Adapter position will be moved rapidly upward, and the former locus of air mass pushes away the liquid of wall while also by rapid resilience simultaneously by air mass
Wall 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
Cause larger noise to shake and mechanical shock, equipment is damaged.Therefore in order to avoid the generation of this phenomenon, now set
The distance between the adjacent constant-current stabilizer put is shorter and shorter, so that constantly separate gas phase and liquid phase in fluid delivery process,
So as to reduce vibrations and noise to the full extent.
It is found through experiments that, by above-mentioned setting, vibrations and noise can be both reduced to the full extent, while can carry
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 S second derivative, meets following require：
S”>0;
It is found through experiments that, by being arranged such, can further reduces by 9% or so vibrations and noise, while it is left to improve 7%
Right heat transfer effect.
Preferably, the length of each constant-current stabilizer 4 keeps constant.
Preferably, in addition to the distance between adjacent constant-current stabilizer 4, constant-current stabilizer others parameter（Such as length,
Caliber etc.）Keep constant.
Preferably, along rise tube fluid flow direction（Fluid flows to upper direction）, tedge is interior to be set
Multiple constant-current stabilizers 4, from the entrance of tedge to the outlet of tedge, the length of constant-current stabilizer 4 is increasingly longer.That is constant-current stabilizer
Length be C, C=F2(X), C ' is C first order derivative, 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 is continuous
Increase.That is C " is C second derivative, meets following require：
C”>0;
The change of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the distance between adjacent constant-current stabilizer keeps constant.
Preferably, except the length of constant-current stabilizer is outside one's consideration, constant-current stabilizer others parameter（Such as adjacent spacing, caliber
Deng）Keep constant.
Preferably, along rise tube fluid flow direction（I.e. along tedge bearing of trend）, set in tedge
Multiple constant-current stabilizers are put, from the entrance of tedge to the outlet of tedge, the diameter of the through hole 42 in different constant-current stabilizers 4 is got over
Come smaller.That is the through hole a diameter of D, D=F of constant-current stabilizer3(X), D ' is D first order derivative, meets following require：
D’<0;
Preferably, from the entrance of tedge to the outlet of tedge, the less and less amplitude of the insertion bore dia of constant-current stabilizer
It is continuously increased.I.e.
D " is D second derivative, meets following require：
D”>0。
The change 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 keep constant.
Preferably, in addition to the insertion bore dia of constant-current stabilizer, constant-current stabilizer others parameter（Such as length, adjacent
The distance between constant-current stabilizer etc.）Keep constant.
Further preferably, as shown in figure 4, setting groove inside the tedge, the shell 41 of the constant-current stabilizer 4 is set
In groove.
Preferably, the inwall and the aligning inner of tedge of shell 41.Pass through alignment so that tedge internal face surface
On reach in approximately the same plane, it is ensured that surface it is smooth.
Preferably, the thickness of shell 41 is less than the depth of groove, it can so cause tedge internal face formation groove,
So as to carry out augmentation of heat transfer.
Further preferably, as shown in figure 5, tedge is welded for multi-segment structure, the junction of multi-segment structure sets steady
Flow device 4.This mode causes being simple to manufacture for the tedge for setting constant-current stabilizer, cost reduction.
By analysis and experiment learn, the spacing between constant-current stabilizer can not be excessive, it is excessive if cause damping noise reduction
Effect it is bad, while can not be too small, it is too small if cause resistance excessive, similarly, the external diameter of through hole can not it is excessive or
Person is too small, and the effect for also resulting in damping noise reduction is bad or resistance is excessive, therefore the present invention is by substantial amounts of experiment, preferential
Meet normal flow resistance（Total pressure-bearing is below 2.5Mpa, or the on-way resistance of single riser is less than or equal to 5Pa/M）
In the case of so that being optimal of damping noise reduction, arrange the optimal relation of parameters.
Spacing between adjacent constant-current stabilizer is S, and the length of constant-current stabilizer is C, and the external diameter of tedge is W, constant-current stabilizer
The a diameter of D of through hole, meet following require：
Preferably, the distance between adjacent constant-current stabilizer is S, the length of constant-current stabilizer is C, and the external diameter of heat exchanger tube is W, insertion
The radius in hole is R, the distance between adjacent through hole center of circle L1, meets following require：
S/C=a-b*LN (W/（2*R）)；
L1/（2*R） =c*(W/（2*R）)-d*(W/（2*R）)2-e
Wherein LN is logarithmic function, a, b, c, and d, e is parameter, wherein 3.0<a<3.5,0.5<b<0.6；2.9<c<3.1,0.33<d
<0.37,4.8<e<5.3；
The interval S of wherein constant-current stabilizer is with the distance between relative two ends of adjacent constant-current stabilizer；That is above constant-current stabilizer
Tail end and the distance between front end of constant-current stabilizer below.Referring specifically to Fig. 4 mark.
34<W<58mm；
4<R<6mm;
17<C<25mm；
32<S<40mm；
1.05<L1/（2*R）<1.25.
Preferably, a=3.20, b=0.54, c=3.03, d=0.35, e=5.12.
Preferably, rising length of tube L between 3000-8500mm.Further preferably, between 4500-5500mm.
Further preferably, 40mm<W<50mm；
9mm<2R<10mm;
22mm<C<24mm；
35mm<S<38mm。
By the preferred of the optimal geometric scale of above-mentioned formula, it can realize under the conditions of meeting normal flow resistance,
Damping noise reduction reaches optimum efficiency.
Further preferably, as W/R increase, a constantly reduce, b constantly increases.
For other parameters, the parameter such as tube wall, housing wall thickness is set according to normal standard.
Preferably, through hole 42 extends in the whole length direction of constant-current stabilizer 4.I.e. the length of through hole 42 is equal to steady
Flow the length of device 4.
Preferably, in the case of the angle that tedge and horizontal plane are formed is A, correction factor c can be increased to data
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 is disclosed as above with preferred embodiment, the present invention is not limited to this.Any art technology
Personnel, without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should
It is defined when by claim limited range.
Claims (10)
1. a kind of steam boiler, including upper drum and lower drum and the tedge being connected between upper drum and lower drum and decline
Pipe, it is characterised in that constant-current stabilizer is set in the tedge, the constant-current stabilizer includes core body and shell, and the core body is set
Put in shell, the shell is connected with rising inside pipe wall, the core body is the one extended along outer cover length direction
Change and be provided with a number of through hole on structural member, the structural member.
2. steam boiler as claimed in claim 1, it is characterised in that the through hole is circular, the adjacent through hole center of circle
The distance between L1>2R, wherein R are insertion pore radius.
3. steam boiler as claimed in claim 1, it is characterised in that set aperture between adjacent through hole, real by aperture
Connection between existing through hole.
4. steam boiler as claimed in claim 1, it is characterised in that multiple constant-current stabilizers are set in tedge, distance rises
The distance of tube inlet is that the spacing between H, adjacent constant-current stabilizer is S, S=F1(H) following require, is met：
S’<0, S”>0。
5. steam boiler as claimed in claim 1, it is characterised in that multiple constant-current stabilizers are set in tedge, distance rises
The distance of tube inlet is H, and the length of constant-current stabilizer is C, C=F2(H) following require, is met：
C’>0, C”>0。
6. steam boiler as claimed in claim 1, it is characterised in that multiple constant-current stabilizers are set in tedge, distance rises
The distance of tube inlet is H, the through hole a diameter of D, D=F of constant-current stabilizer3(H) following require, is met：
D’<0, D”>0。
7. steam boiler as claimed in claim 1, it is characterised in that the rising inside pipe wall sets groove, the current stabilization dress
The shell put is arranged in groove, the inwall of the shell and the aligning inner of tedge.
8. steam boiler as claimed in claim 7, it is characterised in that tedge is welded for multi-segment structure, multi-segment structure
Junction set constant-current stabilizer.
9. steam boiler as claimed in claim 1, it is characterised in that the distance between adjacent constant-current stabilizer is S, constant-current stabilizer
Length be C, the external diameter of heat exchanger tube is W, and the radius of through hole is R, the distance between adjacent through hole center of circle L1, is met such as
It is lower to require：
S/C=a-b*LN (W/（2*R）)；
L1/（2*R） =c*(W/（2*R）)-d*(W/（2*R）)2-e
Wherein LN is logarithmic function, a, b, c, and d, e is parameter, wherein 3.0<a<3.5,0.5<b<0.6；2.9<c<3.1,0.33<d
<0.37,4.8<e<5.3；
The spacing of wherein constant-current stabilizer is with the distance between relative two ends of adjacent constant-current stabilizer；
34<W<58mm；
4<R<6mm;
17<C<25mm；
32<S<40mm；
1.05<L1/（2*R）<1.25.
10. heat exchanger as claimed in claim 9, it is characterised in that a=3.20, b=0.54, c=3.03, d=0.35, e=
5.12。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307838.3A CN108534120B (en) | 2017-04-21 | 2017-04-21 | A kind of more drum high-efficiency steam boilers |
| CN201810308287.2A CN108534121B (en) | 2017-04-21 | 2017-04-21 | A kind of tedge is obliquely installed the steam boiler of constant-current stabilizer |
| CN201710267623.9A CN106949449B (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler |
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| CN201710267623.9A CN106949449B (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler |
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| CN201810307838.3A Division CN108534120B (en) | 2017-04-21 | 2017-04-21 | A kind of more drum high-efficiency steam boilers |
| CN201810308287.2A Division CN108534121B (en) | 2017-04-21 | 2017-04-21 | A kind of tedge is obliquely installed the steam boiler of constant-current stabilizer |
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| CN106949449A true CN106949449A (en) | 2017-07-14 |
| CN106949449B CN106949449B (en) | 2018-05-18 |
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| CN201810308287.2A Expired - Fee Related CN108534121B (en) | 2017-04-21 | 2017-04-21 | A kind of tedge is obliquely installed the steam boiler of constant-current stabilizer |
| CN201710267623.9A Expired - Fee Related CN106949449B (en) | 2017-04-21 | 2017-04-21 | A kind of steam boiler |
| CN201810307838.3A Expired - Fee Related CN108534120B (en) | 2017-04-21 | 2017-04-21 | A kind of more drum high-efficiency steam boilers |
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| CN109387105A (en) * | 2017-08-03 | 2019-02-26 | 山东大学 | A kind of bar wing formula loop circuit heat pipe |
| CN109882822A (en) * | 2018-06-20 | 2019-06-14 | 青岛金玉大商贸有限公司 | The design method of the different steam boiler of tedge down-comer caliber |
| CN110038313A (en) * | 2018-10-29 | 2019-07-23 | 山东大学 | A kind of evaporator inlet pipe design method and its seawater desalination system |
| CN110186023A (en) * | 2018-06-20 | 2019-08-30 | 青岛金玉大商贸有限公司 | A kind of design method of steam boiler |
| CN111099679A (en) * | 2018-10-29 | 2020-05-05 | 山东大学 | Evaporator for seawater desalination |
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- 2017-04-21 CN CN201710267623.9A patent/CN106949449B/en not_active Expired - Fee Related
- 2017-04-21 CN CN201810307838.3A patent/CN108534120B/en not_active Expired - Fee Related
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| DE3106822A1 (en) * | 1981-02-24 | 1982-10-14 | Hans 7614 Gengenbach Schneekloth | Distribution pipe |
| 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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| CN109387105A (en) * | 2017-08-03 | 2019-02-26 | 山东大学 | A kind of bar wing formula loop circuit heat pipe |
| CN111207376B (en) * | 2018-06-20 | 2021-05-25 | 绍兴市明靓科技信息咨询有限公司 | Design method of steam boiler with variable ascending pipes |
| CN109882822A (en) * | 2018-06-20 | 2019-06-14 | 青岛金玉大商贸有限公司 | The design method of the different steam boiler of tedge down-comer caliber |
| CN111998324B (en) * | 2018-06-20 | 2022-08-02 | 江苏宜宝设备制造有限公司 | Space design method of steam heat exchanger |
| CN112013369B (en) * | 2018-06-20 | 2022-07-22 | 苏州市东挺河智能科技发展有限公司 | Size design method of steam boiler |
| CN110186023A (en) * | 2018-06-20 | 2019-08-30 | 青岛金玉大商贸有限公司 | A kind of design method of steam boiler |
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| CN110038314A (en) * | 2018-10-29 | 2019-07-23 | 山东大学 | A kind of design method and its seawater desalination system of steam pipe constant-current stabilizer |
| CN110038313A (en) * | 2018-10-29 | 2019-07-23 | 山东大学 | A kind of evaporator inlet pipe design method and its seawater desalination system |
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| CN114608001B (en) * | 2021-05-27 | 2023-03-03 | 中北大学 | Steam boiler of intelligent control pitch-row change |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106949449B (en) | 2018-05-18 |
| CN108534121A (en) | 2018-09-14 |
| CN108534121B (en) | 2019-04-23 |
| CN108534120A (en) | 2018-09-14 |
| CN108534120B (en) | 2019-04-23 |
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