CN107084380B - A kind of steam boiler - Google Patents
A kind of steam boiler Download PDFInfo
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- CN107084380B CN107084380B CN201710254643.2A CN201710254643A CN107084380B CN 107084380 B CN107084380 B CN 107084380B CN 201710254643 A CN201710254643 A CN 201710254643A CN 107084380 B CN107084380 B CN 107084380B
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- tedge
- constant
- current stabilizer
- pipe
- shell
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- 239000003381 stabilizer Substances 0.000 claims abstract description 75
- 230000000630 rising effect Effects 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 22
- 238000012546 transfer Methods 0.000 abstract description 10
- 230000005514 two-phase flow Effects 0.000 abstract description 5
- 230000003416 augmentation Effects 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 23
- 239000012530 fluid Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 239000007791 liquid phase Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 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
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002474 experimental method 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
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 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
- 230000008901 benefit Effects 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
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 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
- 238000003466 welding Methods 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
- F22B21/04—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 a single lower drum, e.g. the drums being arranged transversely
-
- 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)
Abstract
The present invention provides a kind of steam boilers, including upper drum and lower drum and the tedge and down-comer that are connected between upper drum and lower drum, setting constant-current stabilizer in the tedge, the constant-current stabilizer includes core and shell, the core setting is in the shell, the shell connect fixation with rising inside pipe wall, and the core is composed of together a number of pipe adjoining.The present invention provides a kind of steam boiler of the constant-current stabilizer of Novel structure, there are during Gas- liquid two-phase flow in tedge, augmentation of heat transfer, while weaken the vibration of tedge, reduce noise level.
Description
Technical field
The present invention is the project that colleges and universities is entrusted to be researched and developed.The invention belongs to steam generation field more particularly to a kind of steamings
Boiler furnace belongs to IPC code F22 fields.
Background technology
Receive heat from stove and fluid is made to flow to high-order circuit referred to as " riser circuit " from low level, and receive heat
Measure and make the circuit that fluid flows to low level from a high position to be referred to as " declining circuit ".One circuit is by a pipe or one group of pipe
Composition, this group of pipe are drawn from a common point, such as header or steamdrum, are terminated at and are similarly public as header or drum
Concurrent.
In the design of most of natural circulation boilers, the heat pipe for forming evaporation section is typically 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 stove
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 to affect the efficiency of tedge heat absorption.
On the other hand, upper drum this section is exported to from tedge, because the space of this section becomes larger suddenly, the change in space
Changing can cause the quick of gas to flow upwards out and assemble, therefore spatial variations can lead to the vapour phase of aggregation（Vapour group）From tedge position
It puts into upper drum, due to gas（Vapour）Liquid density contrast, air mass, which leaves, to be taken over position and will move rapidly upward, and air mass original space bit
It puts and is pushed away the liquid of wall surface while will also be sprung back rapidly and hit wall surface 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 vibrations and mechanical shock, to equipment
It damages.
In view of the above-mentioned problems, being improved on the basis of invention in front of the invention, a kind of new steam copper is provided
Stove, so as to solve the problems, such as that tedge heat absorption efficiency is low.
Invention content
The present invention provides a kind of new steam boiler, so as to solve the technical issues of front occurs.
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 under
Drop pipe；Setting constant-current stabilizer in the tedge, the constant-current stabilizer include core and shell, and the core is arranged on shell
In, the shell connect fixation with rising inside pipe wall, and the core is composed of together a number of pipe adjoining.
Preferably, adjacent pipe is by being welded together.
Preferably, aperture is set to realize perforation between adjacent pipe.
Preferably, the multiple constant-current stabilizers of setting in tedge, the distance that distance rises tube inlet is H, adjacent current stabilization dress
Spacing between putting is S, S=F1(H), meet following requirement：
S’<0, S”>0。
Preferably, the multiple constant-current stabilizers of setting in tedge, the distance that distance rises tube inlet is H, constant-current stabilizer
Length is C, C=F2(H), meet following requirement：
C’>0, C”>0。
Preferably, the multiple constant-current stabilizers of setting in tedge, the distance that distance rises tube inlet is H, constant-current stabilizer
Pipe diameter is D, D=F3(H), meet following requirement：
D’<0, D”>0。
Preferably, the rising inside pipe wall setting groove, 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, the junction setting constant-current stabilizer 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 requirement：
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；
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;
19<C<27mm；
50<S<70mm。
Compared with prior art, the present invention has the advantage that：
1）The present invention sets multitube constant-current stabilizer in tedge, is detached two-phase fluid by multitube constant-current stabilizer
Into 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.
2）The present invention is equivalent in tedge by setting multitube constant-current stabilizer and increases inner fin, enhance and change
Heat improves heat transfer effect.
3）The present invention avoids only because vehicle repair major is divided in the entire cross-section location of tedge
Tedge internal face is split, so as to 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 vibrations, enhance heat transfer.
4）The present invention in tedge short transverse by setting distance, the length of constant-current stabilizer between adjacent constant-current stabilizer
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.
5）The 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 steam boiler structure diagram 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.
In figure：1st, 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
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.
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 connect
Upper drum 1 and lower drum 2.Water enters from upper drum 1 in down-comer 5.Water flows downward in the downcomer, 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 enter down-comer 5, a flow circuit are 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, 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 stove 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
Enter the temperature raising 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
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
Lower drum 7 and upper drum 1 set outlet header 11 so far, by intermediate tedge 9 by two-phase mixture going out from burner hearth circuit
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
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 enter down-comer 5, a flow circuit are 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 that ensure a critical inputs heat so that fluid restrain and convection current furnace wall circuit in all pipe fully to
Upper circulation and the unstability that flowing will not be generated.
Setting constant-current stabilizer 4, the constant-current stabilizer 4 such as Fig. 3 in the tedge 3 and/or tedge 8 and/or tedge 9
Shown, including core 42 and shell 41, the core 42 is arranged in shell 41, and the shell 41 is connect with 3 inner wall of tedge
Fixed, the core is to be abutted to be composed together by a number of pipe 42.
The present invention sets multitube constant-current stabilizer in tedge, by multitube constant-current stabilizer by the liquid in two-phase fluid
It is mutually detached 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, there is 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, enhance and change
Heat improves heat transfer effect.
The present invention is because all cross-section locations of the vehicle repair major in tedge 3 are divided, so as on entire
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 enhances disturbance, significantly
Reduce noise and vibrations, enhance heat transfer.
Preferably, by setting insert in the space 43 between shell 42 and outermost layer pipe 41, ensure pipe
Between closely connect, while ensure that pipe 41 is fixed in shell 42.
Preferably, adjacent pipe 41 is by being welded together.It is linked together, ensure that by welding manner
Being connected firmly between pipe 41.
Preferably, aperture is set to realize perforation between adjacent pipe 41.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 phase and vapour phase while flowing, is conducive to further stablize two-phase flow.
Preferably, the flow direction along fluid in tedge 3（That is the short transverse of Fig. 3）, setting is more in tedge 3
A constant-current stabilizer 4, it is shorter and shorter from the entrance of tedge to the distance between the outlet of tedge, adjacent constant-current stabilizer.If away from
It is H with a distance from rising tube inlet, 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 requirement：
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 vibrations and its noise also can be continuous with vapour phase increase
Increase.Therefore need the distance between the adjacent constant-current stabilizer set shorter and shorter.
In addition, outlet header 11 this section 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 can cause the quick of gas to flow upwards out and assemble, therefore space becomes
The vapour phase of aggregation can be led to by changing（Vapour group）Enter condensation collector from tedge position, due to gas（Vapour）Liquid density contrast, air mass leave
Taking over position will move rapidly upward, and air mass original spatial position is pushed away the liquid of wall surface while also will rapidly be sprung back simultaneously 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 meeting
Larger noise vibrations 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 put is shorter and shorter, so as to 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, can both reduce vibrations and noise to the full extent, while can carry
High heat transfer effect.
Further preferably, from the entrance of tedge to the distance between the outlet of tedge, adjacent constant-current stabilizer increasingly
Short amplitude is continuously increased.That is S " is the second derivative of S, meets following requirement：
S”>0;
It is found through experiments that, sets by doing so, can further reduce by 9% or so vibrations and noise, improve simultaneously
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, along the flow direction for rising tube fluid（Fluid is flowed to upper direction）, tedge is interior to be set
Multiple constant-current stabilizers 5, from the entrance of tedge to the outlet of tedge, the length of constant-current stabilizer 5 is increasingly longer.That is constant-current stabilizer
Length be C, C=F2(X), C ' is the first order derivative of C, meets following requirement：
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 requirement：
C”>0;
The variation of the distance between for example adjacent constant-current stabilizer of specific reason is identical.
Preferably, the distance between adjacent constant-current stabilizer remains unchanged.
Preferably, the length in addition to constant-current stabilizer is outside one's consideration, constant-current stabilizer others parameter（Such as adjacent spacing, caliber
Deng）It remains unchanged.
Preferably, along the flow direction for rising tube fluid（I.e. along tedge extending direction）, set in tedge
Multiple constant-current stabilizers are put, 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 requirement：
D’<0;
Preferably, from the entrance of tedge to the outlet of tedge, the less and less width of the pipe diameter of constant-current stabilizer
Degree is continuously increased.I.e.
D " is the second derivative of D, meets following requirement：
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（It is such as length, adjacent steady
Flow the distance between device etc.）It remains unchanged.
Further preferably, as shown in figure 4, setting groove, the shell 42 of the constant-current stabilizer 4 are set inside the tedge
In groove.
Preferably, the inner wall of shell 42 and the aligning inner of tedge.Pass through alignment so that tedge internal face surface
On reach in the same plane, ensure the smooth of surface.
Preferably, the thickness of shell 42 is less than the depth of groove, tedge internal face can be caused to form groove in this way,
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 setting of multi-segment structure is steady
Flow device 4.This mode to set being simple to manufacture for the tedge 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 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 best 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 for D, meet following requirement：
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；
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. 5.
34mm<W<58mm；
7mm<D<12mm;
19mm<C<27mm；
50mm<S<70mm。
Preferably, rise 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 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 constantly reduce, b constantly increases.
Further preferably, a=5.31, b=1.75.
For other parameters, such as the parameters such as tube wall, housing wall thickness are 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
Put 5 length.
Preferably, the caliber of the evaporation collector 1 is less than the caliber of condensation collector 2.
The internal diameter of collector is evaporated for 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 improve more than 7% heat exchange efficiency.
Preferably, being A in the angle that tedge and horizontal plane are formed, 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 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 (3)
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, which is characterized in that setting constant-current stabilizer in the tedge, the constant-current stabilizer include core and shell, and the core is set
It puts in the shell, the shell connect fixation with rising inside pipe wall, and the core is abutted together by a number of pipe
It 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 of constant-current stabilizer
The a diameter of D of son meets following requirement：
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；
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;
19<C<27mm；
50<S<70mm。
2. steam boiler as described in claim 1, which is characterized in that a=5.31, b=1.75.
3. steam boiler as described in claim 1, which is characterized in that adjacent pipe is by being welded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254643.2A CN107084380B (en) | 2017-04-18 | 2017-04-18 | A kind of steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254643.2A CN107084380B (en) | 2017-04-18 | 2017-04-18 | A kind of steam boiler |
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| Publication Number | Publication Date |
|---|---|
| CN107084380A CN107084380A (en) | 2017-08-22 |
| CN107084380B true CN107084380B (en) | 2018-06-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111207377B (en) * | 2018-06-20 | 2021-05-25 | 绍兴市明靓科技信息咨询有限公司 | Steam boiler |
| CN110186023B (en) * | 2018-06-20 | 2020-11-17 | 中盐昆山有限公司 | Design method of steam boiler |
| CN109945148B (en) * | 2018-06-20 | 2020-06-12 | 青岛佰腾科技有限公司 | Steam boiler |
| CN111911901A (en) * | 2018-06-27 | 2020-11-10 | 青岛鑫众合贸易有限公司 | Steam generation system intelligently controlled according to water level |
| CN114608001B (en) * | 2021-05-27 | 2023-03-03 | 中北大学 | Steam boiler of intelligent control pitch-row change |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN102588699A (en) * | 2012-02-29 | 2012-07-18 | 北京中油联自动化技术开发有限公司 | Flow equalizer |
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