CN206695161U - Multichannel built in a kind of grate furnace turns round dust arrester - Google Patents
Multichannel built in a kind of grate furnace turns round dust arrester Download PDFInfo
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- CN206695161U CN206695161U CN201720383589.7U CN201720383589U CN206695161U CN 206695161 U CN206695161 U CN 206695161U CN 201720383589 U CN201720383589 U CN 201720383589U CN 206695161 U CN206695161 U CN 206695161U
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- smoke baffle
- baffle plate
- bent angle
- end ductwork
- smoke
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Abstract
Multichannel built in a kind of grate furnace turns round dust arrester, and it is related to field of boilers.In order to solve existing corner tube boiler, caused dust stratification can reduce heating surface surface heat transfer efficiency to the utility model in the process of running, cause exhaust gas temperature to rise, have a strong impact on boiler efficiency；Heating surface fly ash content is too high, the problem of the finned tube for the economizer for blocking corner tube boiler.First smoke baffle plate of the present utility model is vertically arranged in corner tube boiler body exit and by way of welding with being connected on the inside of back-end ductwork, longitudinal axis direction of multiple second smoke baffle plates along flue is equally spaced the rear of the first smoke baffle plate in back-end ductwork successively, the opening of the first bent angle (α) at the top of each second smoke baffle plate faces away from the first smoke baffle plate side, the first smoke baffle plate side of opening direction of the second bent angle (β) of each second smoke baffle plate bottom.The utility model is used in corner tube boiler back-end ductwork.
Description
Technical field
It the utility model is related to the back-end ductwork of corner tube boiler, and in particular to multichannel revolution removes built in a kind of grate furnace
Dirt device.
Background technology
Corner tube boiler caused dust stratification in the process of running, can reduce heating surface surface heat transfer efficiency, cause boiler to be arranged
Cigarette temperature rises, extreme influence boiler efficiency.Fouling of heating surface often brings the various problems of boiler, wherein boiler body simultaneously
The flue gas of outlet directly enters economizer and air preheater by back-end ductwork, and the finned tube of the economizer of corner tube boiler
Requirement to fly ash content in flue gas is very high, although being furnished with soot blower, fly ash content is too high to be blocked, and influence pot
Stove safe operation.
In summary, caused dust stratification can reduce heating surface surface heat transfer effect to existing corner tube boiler in the process of running
Rate, cause exhaust gas temperature to rise, have a strong impact on boiler efficiency；Heating surface fly ash content is too high, exists and easily blocks corner tube type
The problem of finned tube of the economizer of boiler.
Utility model content
The purpose of this utility model is that caused dust stratification can drop in the process of running in order to solve existing corner tube boiler
Low heating surface surface heat transfer efficiency, causes exhaust gas temperature to rise, has a strong impact on boiler efficiency；Heating surface fly ash content mistake
Height, the problem of the finned tube for the economizer for blocking corner tube boiler.And then provide multichannel revolution dedusting built in a kind of grate furnace
Device.
The technical solution of the utility model is：
Multichannel built in a kind of grate furnace turns round dust arrester, and it includes corner tube boiler body, back-end ductwork and backplate,
Back-end ductwork is arranged on corner tube boiler body to be inclined upwardly, and back-end ductwork is hollow back-end ductwork, and backplate is welded on tail
Portion flue turning, it also includes the first smoke baffle plate and multiple second smoke baffle plates, and the first smoke baffle plate is rectangle steel plate, first every
Cigarette plate is vertically arranged in corner tube boiler body smoke outlet, the both ends of the first smoke baffle plate by way of welding with afterbody cigarette
The inner side connection in road, longitudinal axis direction of multiple second smoke baffle plates along flue is equally spaced the in back-end ductwork successively
The rear of one smoke baffle plate, the first bent angle α, the first bent angle α bending direction is equipped with the top of each second smoke baffle plate towards the back of the body
From the first smoke baffle plate side, the bottom of each second smoke baffle plate is equipped with the second bent angle β, the second bent angle β bending direction direction
First smoke baffle plate side.
Further, the thickness of the first smoke baffle plate and multiple second smoke baffle plates is B, B=3mm-7mm.
Further, the material of the first smoke baffle plate and multiple second smoke baffle plates is Q235B.
Further, the first -140 ° of bent angle α=130 ° at the top of each second smoke baffle plate, each second smoke baffle plate bottom
The second -160 ° of bent angle β=140 °.
Further, the length of the second smoke baffle plate after the first bent angle α on each second smoke baffle plate and the second bent angle β expansion
Spend for 440mm-450mm.
Further, the horizontal spacing between the first smoke baffle plate and multiple second smoke baffle plates is C, C=340mm-360mm.
Further, the longitudinal pitch of multiple second smoke baffle plates is D, D=105mm-115mm.
The utility model has the following effects that compared with prior art：
1st, the utility model utilizes flow of flue gas and flying dust characteristic, by increasing the first smoke baffle plate and more in back-end ductwork
Individual second smoke baffle plate, the flying dust in flue gas is produced inertial separation when flowing through back-end ductwork, reach the purpose of dedusting.Work as cornue
When the flue gas of formula boiler body outlet flows through back-end ductwork by multiple second smoke baffle plates, script side knock back-end ductwork is turned
The flue gas for locating backplate is forced to shunt by the first smoke baffle plate, multiple second smoke baffle plates of sweep of gases after being shunted by the first smoke baffle plate
Afterwards, flue gas can produce the effect of flying dust separation, and then the purpose of dedusting.
2nd, the top of each second smoke baffle plate 5 of the present utility model is equipped with the first bent angle α, each second smoke baffle plate 5
Bottom is equipped with the second bent angle β, can play a part of guiding, is advantageous to improve flue gas flow rate, and flue gas flow rate is higher, flue gas punching
Caused flue gas shunting effect is more obvious after brushing multiple second smoke baffle plates.
3rd, the utility model can be lowered into the fly ash content in the flue gas of economizer and air preheater.Under flue
The dust granule amount showed increased collected at the ash port at end, it can reach beneficial to dedusting, improve economizer and air preheater
Fouling of heating surface, improve boiler efficiency and reduce the dust content in flue gas, reach the efficient, effect of energy-saving and environmental protection.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；Fig. 2 is partial enlarged drawings of the Fig. 1 at Y.
Embodiment
Embodiment one：Illustrate present embodiment, multichannel built in a kind of grate furnace of present embodiment with reference to Fig. 1
Dust arrester is turned round, it includes corner tube boiler body 1, back-end ductwork 2 and backplate 3, and back-end ductwork 2 is arranged on to be inclined upwardly
On corner tube boiler body 1, back-end ductwork 2 is hollow back-end ductwork, and backplate 3 is welded on the turning of back-end ductwork 2, and it also includes
First smoke baffle plate 4 and multiple second smoke baffle plates 5, the first smoke baffle plate 4 are rectangle steel plate, and the first smoke baffle plate 4 is vertically arranged in angle
The smoke outlet of tubular boiler body 1, the inner side of the both ends of the first smoke baffle plate 4 with back-end ductwork 2 by way of welding are connected,
Longitudinal axis direction of multiple second smoke baffle plates 5 along flue is equally spaced the first smoke baffle plate 4 in back-end ductwork 2 successively
Rear, the top of each second smoke baffle plate 5 are equipped with the first bent angle α, and the first bent angle α bending direction faces away from first every cigarette
The side of plate 4, the bottom of each second smoke baffle plate 5 are equipped with the second bent angle β, the second bent angle β bending direction direction first every cigarette
The side of plate 4.
Embodiment two：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, the first smoke baffle plate 4 of present embodiment and more
The thickness of individual second smoke baffle plate 5 is B, B=3mm-7mm.Other compositions and annexation are identical with embodiment one.
Embodiment three：Illustrate present embodiment, the first smoke baffle plate 4 of present embodiment and multiple with reference to Fig. 1
The material of two smoke baffle plates 5 is Q235B.Other compositions and annexation are identical with embodiment one or two.
Embodiment four：Illustrate present embodiment, each second smoke baffle plate 5 of present embodiment with reference to Fig. 1 and Fig. 2
First -140 ° of bent angle α=130 ° at top, the second -160 ° of bent angle β=140 ° of each bottom of second smoke baffle plate 5.So set
Put, the first bent angle α and the second bent angle β on each second smoke baffle plate 5 can play a part of guiding, be advantageous to improve flue gas stream
Speed so that the flue gas washed away after the second smoke baffle plate 5 has obvious separating effect.Other compositions and annexation and specific implementation
Mode one, two or three are identical.
Embodiment five：Illustrate present embodiment, each second smoke baffle plate 5 of present embodiment with reference to Fig. 1 and Fig. 2
On the first bent angle α and the length of the second smoke baffle plate 5 after the second bent angle β expansion be 440mm-450mm.Other compositions and connection
Relation is identical with embodiment one, two, three or four.
Embodiment six：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, the first smoke baffle plate 4 of present embodiment and more
Horizontal spacing between individual second smoke baffle plate 5 is C, C=340mm-360mm.It is arranged such, the multiple smoke baffle plates of sweep of gases, enters
And multiple flying dust separation is produced, the flying dust that will be attached to more fully hereinafter on the inside of back-end ductwork is cleaned out.Other compositions and company
It is identical with embodiment one, two, three, four or five to connect relation.
Embodiment seven：Illustrate present embodiment, multiple second smoke baffle plates 5 of present embodiment with reference to Fig. 1 and Fig. 2
Longitudinal pitch be D, D=105mm-115mm.It is arranged such, longitudinal axis direction of multiple second smoke baffle plates 5 along flue is successively
The rear for the first smoke baffle plate 4 being equally spaced in back-end ductwork 2, exist between two neighboring second smoke baffle plate 5 between longitudinal direction
Away from being advantageous to improve flue gas flow rate, improve the separating effect of flue gas.Other compositions and annexation and embodiment one,
2nd, three, four, five or six are identical.
Embodiment
Embodiment one：Multiple second smoke baffle plates in the utility model use the steel plate that thickness is Q235B for 5mm, material
Bend.The number of degrees of the top bent angle of each second smoke baffle plate are 135 °, and the number of degrees of bottom bent angle are 150 °, each second smoke baffle plate
Expansion total length is 449.2mm, the first smoke baffle plate and each second smoke baffle plate overall width reference back-end ductwork inner wall size.It is more
Horizontal spacing between individual second smoke baffle plate is 350mm, and longitudinal pitch is that 110mm equal difference spacing is arranged in back-end ductwork.The
One smoke baffle plate and multiple second smoke baffle plates are connected by way of welding with back-end ductwork madial wall.
Claims (7)
1. built in a kind of grate furnace multichannel turn round dust arrester, it include corner tube boiler body (1), back-end ductwork (2) and
Backplate (3), back-end ductwork (2) are arranged on corner tube boiler body (1) to be inclined upwardly, and back-end ductwork (2) is hollow afterbody
Flue, backplate (3) are welded on back-end ductwork (2) turning, it is characterised in that：It also includes the first smoke baffle plate (4) and multiple the
Two smoke baffle plates (5), the first smoke baffle plate (4) are rectangle steel plate, and the first smoke baffle plate (4) is vertically arranged in corner tube boiler body
(1) smoke outlet, the inner side of the both ends of the first smoke baffle plate (4) with back-end ductwork (2) by way of welding are connected, Duo Ge
Longitudinal axis direction of two smoke baffle plates (5) along flue is equally spaced the first smoke baffle plate (4) in back-end ductwork (2) successively
Rear, the first bent angle (α) is equipped with the top of each second smoke baffle plate (5), the bending direction of the first bent angle (α) faces away from
One smoke baffle plate (4) side, the bottom of each second smoke baffle plate (5) are equipped with the second bent angle (β), the bending side of the second bent angle (β)
To direction the first smoke baffle plate (4) side.
2. multichannel built in a kind of grate furnace according to claim 1 turns round dust arrester, it is characterised in that：First every cigarette
The thickness of plate (4) and multiple second smoke baffle plates (5) is B, B=3mm-7mm.
3. multichannel built in a kind of grate furnace according to claim 2 turns round dust arrester, it is characterised in that：First every cigarette
The material of plate (4) and multiple second smoke baffle plates (5) is Q235B.
4. multichannel built in a kind of grate furnace according to claim 3 turns round dust arrester, it is characterised in that：Each second
- 140 ° of the first bent angle (α)=130 ° at the top of smoke baffle plate (5), the second bent angle (β) of each second smoke baffle plate (5) bottom=
140°-160°。
5. multichannel built in a kind of grate furnace according to claim 4 turns round dust arrester, it is characterised in that：Each second
The length of the second smoke baffle plate (5) after the first bent angle (α) and the second bent angle (β) expansion on smoke baffle plate (5) is 440mm-
450mm。
6. multichannel built in a kind of grate furnace according to claim 5 turns round dust arrester, it is characterised in that：First every cigarette
Horizontal spacing between plate (4) and multiple second smoke baffle plates (5) is C, C=340mm-360mm.
7. multichannel built in a kind of grate furnace according to claim 6 turns round dust arrester, it is characterised in that：Multiple second
The longitudinal pitch of smoke baffle plate (5) is D, D=105mm-115mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720383589.7U CN206695161U (en) | 2017-04-12 | 2017-04-12 | Multichannel built in a kind of grate furnace turns round dust arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720383589.7U CN206695161U (en) | 2017-04-12 | 2017-04-12 | Multichannel built in a kind of grate furnace turns round dust arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206695161U true CN206695161U (en) | 2017-12-01 |
Family
ID=60442198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720383589.7U Active CN206695161U (en) | 2017-04-12 | 2017-04-12 | Multichannel built in a kind of grate furnace turns round dust arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206695161U (en) |
-
2017
- 2017-04-12 CN CN201720383589.7U patent/CN206695161U/en active Active
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