CN205746761U - Convection bank has the boiler of waveform vertical tube segment structure - Google Patents
Convection bank has the boiler of waveform vertical tube segment structure Download PDFInfo
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- CN205746761U CN205746761U CN201620516789.0U CN201620516789U CN205746761U CN 205746761 U CN205746761 U CN 205746761U CN 201620516789 U CN201620516789 U CN 201620516789U CN 205746761 U CN205746761 U CN 205746761U
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- convection bank
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- boiler
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Abstract
This utility model relates to a kind of convection bank and has the boiler of waveform vertical tube segment structure, and for convection bank between drum, down-comer is drawn from upper drum, connects front header, rear set box, side header respectively, and front header is connected with front arch tube, enters upper drum；Rear set box is connected with rear arched tube, enters upper drum；Side header is connected with side wall, and side water wall tube is directly entered upper drum, and convection bank flue gas is partitioned into four backhauls.This utility model is in the case of original tube bank quantity is constant, and the intersegmental row of vertical tube arrange straight and waveform configuration.Change flow of flue gas state, make up to turbulent flow fluidised form, reduce ash dirty, improve the coefficient of heat transfer and heat utilization efficiency, reduce the boiler of exhaust gas temperature.
Description
Art: this utility model relates to a kind of convection bank and has the boiler of waveform vertical tube segment structure.
Background technology: double-barrel transverse formula boiler, its structure all uses double-barrel transverse formula to arrange, water screen tube constitutes stove
Thorax and secondary furnace heating surface, bilateral water-cooling wall enters drum through upper collecting chamber, arranges convection bank between drum, and fuel fires on fire grate
Burn produced flame and first high-temperature flue gas carries out radiation heat transfer in burner hearth, enters through secondary furnace, convection bank with water-cooling wall
Enter economizer, flue gas is entered in air by chimney by cleaner unit air inducing, wherein restrains in convection bank parallel baffled region
Vertical pipeline section be straight.The vertical pipeline section of above-mentioned convection bank is straight configuration, and that existing boiler is primarily present is following
Problem: flow of flue gas is between laminar flow and turbulent flow, and ash pollution layer is relatively big, and the coefficient of heat transfer is less, and heat utilization efficiency is low, exhaust gas temperature
High.
Summary of the invention: the purpose of this utility model is to provide one makes flue gas reach turbulent flow fluidised form, reduces ash dirty, and raising is changed
Hot coefficient and heat utilization efficiency, the convection bank reducing exhaust gas temperature has the boiler of waveform vertical tube segment structure.This utility model
Technical scheme be: a kind of convection bank have waveform vertical tube segment structure boiler double-barrel transverse formula arrange；Double drums are horizontal
Formula of putting is arranged；Many down-comers (4) are drawn from upper drum (1), and upper drum (1) lower end connects front header (5), rear set box respectively
(6), side header (7)；Front arch tube (8) upper end is connected with upper drum (1), and front arch tube (8) lower end is connected with front header (5)；Rear arch
Pipe (9) upper end is connected with upper drum (1), and rear arched tube (9) lower end is connected with rear set box (6)；Side wall (10) upper end and upper pot
Cylinder (1) connects, and side wall (10) lower end is connected with side header (7)；Convection tube is used between upper drum (1) and lower drum (2)
Bundle (3) connects, and convection bank has waveform vertical tube segment structure, and convection bank flue gas is divided into four regions by dividing plate (11),
In convection bank the 4th region, the arrangement form of tube bank is: a row vertical pipeline section straight configuration A is tied with a row vertical pipeline section waveform
Structure B is divided into multiple rows of interval each other and arranges.
When restraining vertical pipeline section and being straight, flow of flue gas micelle makees well-regulated point along pipe gap at main flow direction
Laminar flow, conducts heat more weak.This utility model is in the case of original tube bank quantity is constant, and vertical pipeline section straight configuration is tied with waveform
Between structure, row are arranged, flue gas changes direction between pipe continuously due to waveform configuration during flow forward, therefore can be transversal
Cause the flowing being similar to secondary circulation on face, make flue gas not remake well-regulated laminar flow, but occur between each several part
Violent mixing, forms vigorous turbulent flow, thus is greatly increased compared to Laminar Flow heat-transfer intensity, but also reduces the dirty system of ash
Number.Thus improve the coefficient of heat transfer, increase heat utilization efficiency, reduce exhaust gas temperature, improve boiler thermal output.
Accompanying drawing illustrates:
Fig. 1 is boiler structure sectional view
Fig. 2 is vertical pipeline section straight row transverse views
Fig. 3 is vertical pipeline section waveform row transverse views
Detailed description of the invention: this utility model as shown in Figure 1 has waveform vertical tube segment structure for a kind of convection bank
Boiler, double-barrel transverse formula arrange；Many down-comers 4 are drawn from upper drum 1, upper drum 1 lower end connect respectively front header 5,
Rear set box 6, side header 7；Front arch tube 8 upper end is connected with upper drum 1, and front arch tube 8 lower end is connected with front header 5；Rear arched tube 9 upper end
Being connected with upper drum 1, rear arched tube 9 lower end is connected with rear set box 6；Side wall 10 upper end is connected with upper drum 1, side wall 10
Lower end is connected with side header 7；Using convection bank 3 to be connected between upper drum 1 with lower drum 2, it is vertical that convection bank has waveform
Pipe segment structure.
Convection bank flue gas is divided into four regions by dividing plate 11, the arrangement form of tube bank in convection bank the 4th region
For: as in figure 2 it is shown, a row vertical pipeline section straight configuration A is divided into each other with a row vertical pipeline section waveform configuration B as shown in Figure 3
Multiple rows of interval is arranged.
Claims (1)
1. convection bank has a boiler for waveform vertical tube segment structure, it is characterized in that: double-barrel transverse formula is arranged；Under many
Fall pipe (4) is drawn from upper drum (1), and upper drum (1) lower end connects front header (5), rear set box (6), side header (7) respectively；Before
Arch tube (8) upper end is connected with upper drum (1), and front arch tube (8) lower end is connected with front header (5)；Rear arched tube (9) upper end and upper drum
(1) connecting, rear arched tube (9) lower end is connected with rear set box (6)；Side wall (10) upper end is connected with upper drum (1), side wall
(10) lower end is connected with side header (7)；Convection bank (3) is used to be connected between upper drum (1) with lower drum (2), convection bank
Having waveform vertical tube segment structure, convection bank flue gas is divided into four regions by dividing plate (11), in convection bank the 4th region
The arrangement form of tube bank is: a row vertical pipeline section straight configuration A is divided into multiple rows of each other with a row vertical pipeline section waveform configuration B
Every layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620516789.0U CN205746761U (en) | 2016-05-26 | 2016-05-26 | Convection bank has the boiler of waveform vertical tube segment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620516789.0U CN205746761U (en) | 2016-05-26 | 2016-05-26 | Convection bank has the boiler of waveform vertical tube segment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205746761U true CN205746761U (en) | 2016-11-30 |
Family
ID=57363214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620516789.0U Active CN205746761U (en) | 2016-05-26 | 2016-05-26 | Convection bank has the boiler of waveform vertical tube segment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205746761U (en) |
-
2016
- 2016-05-26 CN CN201620516789.0U patent/CN205746761U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |