CN110455120A - A kind of novel boiler air preheater fanning strip dust stratification blow device - Google Patents
A kind of novel boiler air preheater fanning strip dust stratification blow device Download PDFInfo
- Publication number
- CN110455120A CN110455120A CN201910850230.XA CN201910850230A CN110455120A CN 110455120 A CN110455120 A CN 110455120A CN 201910850230 A CN201910850230 A CN 201910850230A CN 110455120 A CN110455120 A CN 110455120A
- Authority
- CN
- China
- Prior art keywords
- fanning strip
- preheater
- air
- main body
- dust stratification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
Abstract
The invention discloses a kind of novel boiler air preheater fanning strip dust stratification blow devices, including preheater main body, Secondary Air side port, top cover, mesoporous, flue gas side port, First air side port, main road pipe, bypass duct, valve, air intake vent, axis hole, fanning strip, soot blowing spray head, rotor, heat transfer element and rotor center cylinder, the present invention is connected to above fanning strip by installation main road pipe from a wind cabin lower part, select carbon steel piping as branch, it is communicates directly to inside fanning strip, coupling part is all welded, to form blow device, valve is installed on each branch road, convenient for controlling air quantity, reduce labour, the problem of being increased in operational process by dust stratification bring air leak rate of air curtain is avoided simultaneously and thoroughly solves the problems, such as fanning strip dust stratification, transformation is extremely easy, production is adapted to need.
Description
Technical field
The present invention relates to air preheaters to clean related fields, is specifically a kind of novel boiler air preheater fan
Shape plate dust stratification blow device.
Background technique
The air preheater that station boiler is widely used has tubular type and two kinds rotary, the heat transfer side of tubular air preheater
Formula is: heat is transmitted to air from flue gas continually by tube wall, belongs to indirect heat transfer mode, rotary regenerative air preheater is with the side of regeneration
Formula transmits heat, and flue gas and air alternately pass through heating surface, and when flue gas flows through, heat is transmitted to heating surface, heating surface from flue gas
Temperature increases, and puts aside heat；When air again passes through, heating surface puts the heat of savings to air, all needs in preheater
Fanning strip is installed, fanning strip is the equipment for separating each storehouse, since air preheater rotor is located always in operational process
In rotary state, therefore fanning strip can not be accomplished to be fully sealed, and the dust in operational process in flue gas storehouse and a wind cabin can be by
It is gradually accumulated into fanning strip, fanning strip weight is caused to be continuously increased, it is stuck to easily cause LCS automatic lifting device.
It, can not be to the dust stratification in fanning strip since air preheater rotor is constantly in rotary state in operational process
It is cleared up, is currently that the deashing that punches is carried out to fanning strip in unit outage, since dust stratification situation is more serious in fanning strip,
Therefore it when each unit outage, needs that a large amount of manpower is spent to carry out deashing to fanning strip, it is time-consuming long, at the same time, by
In in unit running process fanning strip be the moment in movement, dust stratification excessively easily leads to LCS lifting device and draws motionless fanning strip,
In order to avoid fanning strip and preheater electric current caused by rotor bite are excessive, highest order can only be promoted manually, increase is leaked out
Rate.
Summary of the invention
Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of novel boiler air preheater fanning strip product herein
Grey blow device.
The invention is realized in this way a kind of novel boiler air preheater fanning strip dust stratification blow device is constructed, it should
Device includes preheater main body, Secondary Air side port, top cover, mesoporous, flue gas side port, First air side port, main road pipe, bypass duct, valve
Door, an air intake vent, axis hole, fanning strip, soot blowing spray head, rotor, heat transfer element and rotor center cylinder, preheater main body top
The left back end in portion offers Secondary Air side port, and upper end is equipped with top cover, middle part in the preheater main body in the preheater main body
Mesoporous is offered, right end is provided with flue gas side port in the preheater main body, and the First air side port is installed on preheater main body
Top front end, First air side port left end are provided with main road pipe, and bottom passes through bypass duct and preheater master in main road pipe
Be fixed at the top of body, and middle part is provided with valve in bypass duct, the main road bottom of the tube right end through preheater main body and
It is arranged in the intracorporal wind cabin of preheater master, the fixed once air intake vent in lower end on the left of the preheater main body, and one
Secondary air intake vent is mutually communicated with the intracorporal wind cabin of preheater master, and the top cover top middle portion, which passes through, has been tightly fastened axis hole,
Fanning strip is distributed in three end of axis hole outer diameter, and upper end is run through by bypass duct in the fanning strip, and lower end is set in bypass duct
It is equipped with soot blowing spray head, the rotor is installed on cap base, vertically-mounted in the rotor to have heat transfer element, the rotor bottom end
Middle part is vertically and fixedly provided with rotor center cylinder.
Preferably, the main road pipe diameter is 89mm, and main road pipe both ends junction is to be welded state.
Preferably, the bypass duct is provided with three groups, and branch pipe diameter is 57mm.
Preferably, the fanning strip is provided with three groups, and two groups of left end angle area is minimum.
Preferably, the axis hole is connect with external lifting device.
Preferably, the main road pipe and bypass duct are all made of carbon steel material.
The present invention has the advantage that the present invention provides a kind of novel boiler air preheater sector by improving herein
Plate dust stratification blow device, compared with same type equipment, have the advantages that as follows improve and；
The novel boiler air preheater fanning strip dust stratification blow device of one kind of the present invention, by installation main road pipe from
Wind cabin lower part is connected to above fanning strip, is selected carbon steel piping as branch, is communicates directly to inside fanning strip, interconnecting piece
Divide and be all welded, to form blow device, valve is installed on each branch road, convenient for control air quantity, reduces labour
Power, while avoiding the problem of being increased in operational process by dust stratification bring air leak rate of air curtain and thoroughly solving fanning strip dust stratification
Problem, transformation is extremely easy, adapts to production and needs.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is rotor structure schematic diagram of the present invention.
Wherein: preheater main body -1, Secondary Air side port -2, top cover -3, mesoporous -4, flue gas side port -5, First air side port -6,
Main road pipe -7, bypass duct -8, valve -9, an air intake vent -10, axis hole -11, fanning strip -12, soot blowing spray head -13, rotor -14,
Heat transfer element -15, rotor center cylinder -16.
Specific embodiment
Below in conjunction with attached drawing 1-2, the present invention is described in detail, and technical solution in the embodiment of the present invention carries out
It clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of novel boiler air preheater fanning strip dust stratification blow device by improving herein, including
Preheater main body 1, Secondary Air side port 2, top cover 3, mesoporous 4, flue gas side port 5, First air side port 6, main road pipe 7, bypass duct 8, valve
9, air intake vents 10 of door, axis hole 11, fanning strip 12, soot blowing spray head 13, rotor 14, heat transfer element 15 and rotor center cylinder 16,
1 top left rear end of preheater main body offers Secondary Air side port 2, and upper end is equipped with top cover 3, preheater master in preheater main body 1
Middle part offers mesoporous 4 in body 1, and right end is provided with flue gas side port 5 in preheater main body 1, and First air side port 6 is installed on preheater
1 top front end of main body, 6 left end of First air side port are provided with main road pipe 7, and bottom passes through bypass duct 8 and preheating in main road pipe 7
It is fixed at the top of device main body 1, and middle part is provided with valve 9 in bypass duct 8,7 bottom right end of main road pipe runs through preheater master
In body 1 and a wind cabin being arranged in preheater main body 1, fixed once air intake vent 10 in 1 left side lower end of preheater main body, and
And an air intake vent 10 is mutually communicated with a wind cabin in preheater main body 1,3 top middle portion of top cover is by being tightly fastened
Fanning strip 12 is distributed in axis hole 11,11 outer diameter of axis hole, three end, and upper end is run through by bypass duct 8 in fanning strip 12, and in bypass duct 8
Lower end is provided with soot blowing spray head 13, and rotor 14 is installed on 3 bottom of top cover, vertically-mounted in rotor 14 to have heat transfer element 15, rotor
14 center bottoms are vertically and fixedly provided with rotor center cylinder 16.
Further, 7 diameter of main road pipe is 89mm, and 7 both ends junction of main road pipe is to be welded state, stationarity
Good, stability is strong.
Further, the bypass duct 8 is provided with three groups, and 8 diameter of bypass duct is 57mm, and ash-removal effect is strong, effect
Rate is high.
Further, the fanning strip 12 is provided with three groups, and two groups of left end angle area is minimum, is able to carry out subregion.
Further, the axis hole 11 is connect with external lifting device, is conveniently attached, and can be carried out promotion.
Further, the main road pipe 7 and bypass duct 8 are all made of carbon steel material, and intensity is high, and stability is strong.
The present invention provides a kind of novel boiler air preheater fanning strip dust stratification blow device by improving, according to as follows
Mode is run；
When needing to carry out preheater in use, in rotatable cylindrical rotor 14 loaded on top cover 3, and rotor 14 is simultaneously
Also several fan-shaped storehouse lattice are divided, and are loaded in each storehouse the heat transfer element 15 that sheet metal is made into, and preheater master
1 top and bottom of body is split flue gas circulating area, main three parts in seal area air circulation area, flue gas circulation up and down
Area and flue gas side port 5 are connected with each other, and air circulation area is attached with First air side port 6 and Secondary Air side port 2, is then opened
Begin for the rotor center cylinder 16 of 14 bottom of rotor to be connected to ex-ternal transmission mechanism, and the rotor 14 of heating surface is turned with 1~3r/min
Speed rotation, will allow heating surface to go to flue gas Circulation Area, flue gas can also flow through heating surface, heating surface and flue gas from top to bottom at this time
Heat is absorbed, and causes to be heated, when reaching air circulation region, heating surface will will absorb come heat from it is lower to
Upper carry out heat transmission, and the every rotation of rotor will complete a heat exchange in one week, and flue gas volumetric ratio air is big, in permanent worker
Making lower fanning strip can not accomplish to be fully sealed, and the dust in operational process in flue gas storehouse and a wind cabin can be gradually toward fanning strip 12
Middle accumulation, using diameter is 89mm carbon steel piping as main road pipe 7, and Cong Yici wind cabin lower part is connected to 12 top of fanning strip, and
It selects the carbon steel piping that diameter is 57mm as bypass duct 8, is communicates directly to inside fanning strip 12, coupling part is all welded,
Whole pipeline is fixed with anchor ear, to form blow device, we increase a diameter on each branch road at the same time
Purging is opened weekly once, purges a hour every time for the valve 9 of 50mm convenient for control air quantity, 300MW unit before being transformed
At least need six people to spend ten days to carry out the cleaning that punches when stopping transport every time, and in operational process fanning strip 12 air leak rate of air curtain meeting
Because the overweight hand hoisting of fanning strip 12 increases to highest order.The attricist for reducing this part after transformation, keeps away simultaneously
The problem of being increased in operational process by dust stratification bring air leak rate of air curtain is exempted from.
The present invention provides a kind of novel boiler air preheater fanning strip dust stratification blow device by improving, and passes through installation
Main road pipe 7 is connected to above fanning strip 12 from a wind cabin lower part, is selected carbon steel piping as bypass duct 8, is communicates directly to fan
Inside shape plate 12, coupling part is all welded, to form blow device, valve 9 is equipped in each bypass duct 8, just
In control air quantity, reduce labour, at the same avoid in operational process by dust stratification bring air leak rate of air curtain increase the problem of and
Thoroughly solves the problems, such as fanning strip dust stratification, transformation is extremely easy, adapts to production and needs.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of novel boiler air preheater fanning strip dust stratification blow device, it is characterised in that: its structure includes preheater
Main body (1), Secondary Air side port (2), top cover (3), mesoporous (4), flue gas side port (5), First air side port (6), main road pipe (7), branch
Manage (8), valve (9), an air intake vent (10), axis hole (11), fanning strip (12), soot blowing spray head (13), rotor (14), heat transfer in road
Element (15) and rotor center cylinder (16), preheater main body (1) the top left rear end offers Secondary Air side port (2), described
Preheater main body (1) interior upper end is equipped with top cover (3), and middle part offers mesoporous (4) in the preheater main body (1), described pre-
The interior right end of hot device main body (1) is provided with flue gas side port (5), before the First air side port (6) is installed on preheater main body (1) top
End, First air side port (6) left end are provided with main road pipe (7), and main road pipe (7) interior bottom is by bypass duct (8) and in advance
It is fixed at the top of hot device main body (1), and middle part is provided with valve (9) in bypass duct (8), main road pipe (7) bottom, right
Preheater main body (1) and setting are run through in a wind cabin in preheater main body (1) in end, on the left of the preheater main body (1)
Fixed once air intake vent (10) in lower end, and an air intake vent (10) is mutually passed through with a wind cabin in preheater main body (1)
Logical, for top cover (3) top middle portion by being tightly fastened axis hole (11), fanning strip is distributed in three end of axis hole (11) outer diameter
(12), the interior upper end of the fanning strip (12) is run through by bypass duct (8), and bypass duct (8) interior lower end is provided with soot blowing spray head
(13), the rotor (14) is installed on top cover (3) bottom, vertically-mounted in the rotor (14) to have heat transfer element (15), described
Rotor (14) center bottom is vertically and fixedly provided with rotor center cylinder (16).
2. a kind of novel boiler air preheater fanning strip dust stratification blow device according to claim 1, it is characterised in that:
Main road pipe (7) diameter is 89mm, and main road pipe (7) both ends junction is to be welded state.
3. a kind of novel boiler air preheater fanning strip dust stratification blow device according to claim 1, it is characterised in that:
The bypass duct (8) is provided with three groups, and bypass duct (8) diameter is 57mm.
4. a kind of novel boiler air preheater fanning strip dust stratification blow device according to claim 1, it is characterised in that:
Valve (9) back side is provided with handle, and valve (9) diameter is 50mm.
5. a kind of novel boiler air preheater fanning strip dust stratification blow device according to claim 1, it is characterised in that:
The fanning strip (12) is provided with three groups, and two groups of left end angle area is minimum.
6. a kind of novel boiler air preheater fanning strip dust stratification blow device according to claim 1, it is characterised in that:
The axis hole (11) connect with external lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850230.XA CN110455120A (en) | 2019-09-10 | 2019-09-10 | A kind of novel boiler air preheater fanning strip dust stratification blow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850230.XA CN110455120A (en) | 2019-09-10 | 2019-09-10 | A kind of novel boiler air preheater fanning strip dust stratification blow device |
Publications (1)
| Publication Number | Publication Date |
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| CN110455120A true CN110455120A (en) | 2019-11-15 |
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ID=68491334
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910850230.XA Pending CN110455120A (en) | 2019-09-10 | 2019-09-10 | A kind of novel boiler air preheater fanning strip dust stratification blow device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664966A (en) * | 2020-12-29 | 2021-04-16 | 苏州西热节能环保技术有限公司 | Steam jet parameter design method of steam soot blower |
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| CN110030575A (en) * | 2019-05-20 | 2019-07-19 | 孟金来 | Anti-blocking ash type air pre-heater with rotary heating surface |
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| CN1163659A (en) * | 1995-06-29 | 1997-10-29 | Abb·空气预热器有限公司 | Sector plate and seal arrangement for trisector air preheater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664966A (en) * | 2020-12-29 | 2021-04-16 | 苏州西热节能环保技术有限公司 | Steam jet parameter design method of steam soot blower |
| CN112664966B (en) * | 2020-12-29 | 2022-05-20 | 苏州西热节能环保技术有限公司 | Steam jet parameter design method of steam soot blower |
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Application publication date: 20191115 |