CN206637650U - A kind of boiler water wall air film protection device - Google Patents
A kind of boiler water wall air film protection device Download PDFInfo
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- CN206637650U CN206637650U CN201720380847.6U CN201720380847U CN206637650U CN 206637650 U CN206637650 U CN 206637650U CN 201720380847 U CN201720380847 U CN 201720380847U CN 206637650 U CN206637650 U CN 206637650U
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Abstract
A kind of boiler water wall air film protection device, on the thermal-flame in boiler water wall region and the upstream furnace wall of flue gas breeze airflow, some air ports are tiltedly installed with, each air port is connected with the air channel being arranged on the outside of burner hearth.The utility model apoplexy is injected into burner hearth by air port, along flue gas stream air curtain is formed between the downstream and water-cooling wall of flame and high-temperature flue gas stream, air curtain is in flame, high-temperature flue gas promotes lower deviation water-cooling wall, form air barrier, on the one hand the effect of air curtain can push the breeze airflow whitewashed a wall or flame to the center of furnace profile, to avoid the erosive wear of the breeze airflow whitewashed a wall or flame to water-cooling wall, corrosion, on the other hand in upstream thermal-flame, turned back under flue gas effect to downstream water-cooling wall region, one layer of oxidizing atmosphere diaphragm is formed in downstream water-cooling wall region, fundamentally solves the problems, such as water wall high temperature corrosion.
Description
Technical field
The utility model belongs to field of boilers, and in particular to a kind of boiler water wall air film protection device.
Background technology
In recent years, as hair changes the energy [2014] 2093《The energy-saving and emission-reduction of coal electricity upgrade and transformation action plan》Reality
Apply, coal-burning power plant has carried out a series of transformation of minimum discharges.To ensure NO in flue gasxDischarge reach discharge standard requirement,
Alleviate denitrating system operating pressure, most power plant have carried out low NO transformation or the transformation of depth low NO.
But under low nitrogen burning mode, boiler primary combustion zone is in weak reducing atmosphere, and part water-cooling wall is reduced due to its adherent place
Property atmosphere is stronger, H in flue gas2S contents are higher, cause water wall high temperature corrosion, cause water-cooling wall tube wall wall thickness reduction obvious, sternly
Ghost image rings unit operation safety.It is reported that more cause water wall high temperature corrosions occur for coal-burning boiler in recent years, water-cooling wall wall thickness subtracts
Thin to cause intensity insufficient, leakage occurs for pipeline section by the event of forced-stopping machine.Some power plant is solve problems, in each turn(a)round
Between exceeded pipe be thinned to high temperature corrosion change, have a strong impact on machine set of long-period safe and stable operation.
To solve the problems, such as water wall high temperature corrosion, boiler manfacturing producer and some scientific research institutions propose the patch of different structure
Wall wind technology, by setting adherent air port at boiler water wall, air is sent into the water cooling wall region that high temperature corrosion easily occurs,
To improve reducing atmosphere at this region, the generation of high temperature corrosion is avoided.But there is problems with adherent wind technology：(1) such as
Adherent wind snout area setting is bigger than normal, although can effectively improve water-cooling wall reducing atmosphere nearby, because adherent wind sprays
Open area is larger, and it is impacted to original boiler air aerodynamic field, such as high-temperature surface tube wall overtemperature, denitration entrance occurs
The problem of NOx is higher, afterbody CO concentration is higher；Such as adherent wind snout area is set less than normal, then water-cooling wall atmosphere of adhesion wall is changed
It is kind ineffective, it is impossible to play a part of preventing water wall high temperature corrosion.(2) adherent air port is provided with stove to fiery side mostly
Guiding device, these guiding devices can cause scaling loss to come off, cause due to reasons such as the washing away of flame, hyperthermia radiations in operation
Adherent wind can not accurately arrive at the water cooling wall region that high temperature corrosion easily occurs, it is impossible to play adherent wind action.(3) adherent wind
Wind regime is typically derived from hot secondary air box, is about 1kPa or so yet with hot secondary air box blast in boiler operatiopn, is born in unit
Lotus may influence the rigidity of adherent wind when relatively low.To solve the problems, such as boiler water-cooling wall high-temperature corrosion, also for avoiding above-mentioned patch
The problem of wall wind is present, it is necessary to propose a kind of water-cooling wall air film protection device.
Utility model content
The purpose of this utility model is to provide a kind of boiler water wall air film protection device, and the device can be effectively improved
The adherent place's atmosphere of water-cooling wall, prevents the generation of high temperature corrosion.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of boiler water wall air film protection device, thermal-flame and flue gas breeze airflow in boiler water wall region
On the furnace wall of upstream, some air ports are tiltedly installed with, each air port is connected with the air channel being arranged on the outside of burner hearth.
The utility model, which further improves, to be, for Opposite Firing Boiler, along furnace depth direction, in stove
Some air ports are provided with right-side wall between thorax depth 1/3rd and half, in furnace depth half and three points
Two between right-side wall on some air ports of center line symmetrical setting on furnace depth direction；If dry-air blast is set on the wall of left side
Mouthful, and left side wall is symmetrical arranged with the air port in right-side wall；For tangentially-fired boiler, on burner outlet jet
Swim and some air ports are set on the furnace wall in region.
The utility model, which further improves, to be, for Opposite Firing Boiler, the angle of air port and side wall is
Acute angle；For tangentially-fired boiler, the angle of air port and furnace wall is acute angle.
The utility model, which further improves, to be, the width in air port is 15~30cm；For opposed firing burning pot
The angle of stove, air port and side wall is 30~45 °；For tangentially-fired boiler, the angle of air port and furnace wall is 30~45 °.
The utility model, which further improves, to be, air port is arranged at intervals, and forms clearance type air port.
The utility model, which further improves, to be, for Opposite Firing Boiler, the height in air port is orlop
Turbulent burner to after-flame wind combustor distance；For tangentially-fired boiler, the height in air port is orlop burner
The distance between to the superiors' burner.
The utility model, which further improves, to be, for Opposite Firing Boiler, the height in air port is less than most lower
Layer turbulent burner to after-flame wind combustor distance；For tangentially-fired boiler, the height in air port is fired less than orlop
Burner is the distance between to the superiors' burner.
The utility model, which further improves, to be, air port is divided into some sections along short transverse, and some intersegmental every setting
Put.
The utility model, which further improves, to be, for Opposite Firing Boiler, along furnace depth direction, by pot
Stove right-side wall is divided into I section of right-side wall, II section of right-side wall, three sections of right-side wall III section, wherein, II section of right-side wall is put down to outside body of heater
150mm~200mm is moved, the gap between II section of right-side wall and I section of right-side wall, III section of right-side wall forms natural wind mouth；Boiler is left
Side wall is set and structure identical nature air port in right-side wall.
The utility model, which further improves, to be, deflector is provided with inside each air port.
Compared with prior art, the beneficial effects of the utility model are：The utility model is by easily occurring high temperature corruption
On the thermal-flame of the water cooling wall region of erosion and the upstream furnace wall of flue gas breeze airflow, set and the wind of furnace wall at an angle
Mouthful, wind is injected into burner hearth by air port, and air curtain is formed between the downstream and water-cooling wall of flame and high-temperature flue gas stream along flue gas stream,
Air curtain is inclined to water-cooling wall in the case where flame, high-temperature flue gas promote, and forms air barrier, on the one hand the effect of air curtain will can whitewash a wall
Breeze airflow or flame push the center of furnace profile to, to avoid the breeze airflow whitewashed a wall or flame from washing away mill to water-cooling wall
Damage, corrosion, on the other hand turned back under upstream thermal-flame, flue gas effect to downstream water-cooling wall region, in downstream water-cooling wall area
Domain forms one layer of oxidizing atmosphere diaphragm, fundamentally solves the problems, such as water wall high temperature corrosion.The utility model apparatus structure
Simply, positive effect, the convenient boiler to have put into operation carry out corresponding technological transformation.
Further, for Opposite Firing Boiler, along furnace depth direction, in furnace depth 1/3rd and two
Some air ports are provided with right-side wall between/mono-, in the right-side wall between furnace depth half and 2/3rds
Some air ports of center line symmetrical setting on furnace depth direction；Because scenery resource quality is close to easily generation high temperature corrosion
Water cooling wall region, effective air curtain is formed under limited air quantity, it is less into the air quantity accounting of burner hearth by air port, it is low to boiler
Nitrogen burns and denitration operation is favourable.
Further, for Opposite Firing Boiler, left side wall is symmetrical arranged with the air port in right-side wall, and is set
Put in the high temperature corrosion region of left side wall and right-side wall water-cooling wall along furnace depth direction, absolute altitude is located at orlop burner to combustion
The scope of wind to the greatest extent, clearance type air port are arranged using the water-cooling wall furnace wall center line that high temperature corrosion easily occurs as axial symmetry；For four
Angle tangentially firing boiler, air film protection device are arranged on burner outlet jet upstream region, highly in orlop burner extremely
Scope between the superiors' burner.
Further, in the utility model for Opposite Firing Boiler, the angle of air port and side wall is 30~
45°；For tangentially-fired boiler, the angle of air port and furnace wall is 30~45 °, by setting the air port of special construction, wind
Mouth is designed as having certain length and the clearance type of proper width, and the sky of air port injection is made by internal structure (such as air channel water conservancy diversion)
Air-flow is with easily occurring the water-cooling wall of corrosion area at an angle.Or by the way that the easy water-cooling wall that corrosion area occurs is divided
Section dislocation, form air port naturally angled with the water-cooling wall of corrosion area easily occurs；Pass through multi-tier arrangement or more
To arrangement, protection wind is formed air curtain, air film protection is formed to the water-cooling wall that corrosion area easily occurs, prevents water-cooling wall high temperature
The generation of corrosion.Meanwhile the utility model makes the arrangement of protection air port to be formed under limited air quantity close to easy corrosion area
Effective supply and protection, air quantity accounting is few, low nitrogen burning and denitration is run favourable.
Brief description of the drawings
Fig. 1 is the schematic top plan view of the face-fired boiler water-cooling wall air film protection device of the utility model embodiment 1；
Fig. 2 is the schematic side view of the face-fired boiler water-cooling wall air film protection device of the utility model embodiment 1；Its
In, Fig. 2 (a) is whole section of arrangement, and Fig. 2 (b) is step-by-step arrangement, and Fig. 2 (c) is any arrangement；
Fig. 3 is the vertical view signal of the tangentially-fired boiler water-cooling wall air film protection device of the utility model embodiment 1
Figure；
Fig. 4 is the schematic top plan view of the face-fired boiler water-cooling wall air film protection device of the utility model embodiment 2；
Wherein, 1 is burner hearth front wall, and 2 be wall after burner hearth, and 3 be wall on the left of burner hearth, and 4 be burner hearth right-side wall, and 5 be front wall firing
Device, 6 be rear wall firing device, and 7 be the first air port, and 8 be the second air port, and 9 be the 3rd air port, and 10 be the 4th air port, and 11 be regulating valve,
12 be stop valve, and 13 be I section of right-side wall, and 14 be II section of right-side wall, and 15 be III section of right-side wall, and 16 be the 5th air port, and 17 be the 6th
Air port, 18 be the 7th air port, and 19 be water-cooling wall, and 20 be high temperature corrosion region, and 21 be burner jet back-fire side downstream area, 22
It is Bafeng mouth for air channel, 23.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
For Opposite Firing Boiler, the high temperature corrosion of water-cooling wall 19 mostly occurs in left side wall 3 and right-side wall 4 along stove
The high temperature corrosion region 20 of thorax depth direction, absolute altitude are located at orlop turbulent burner to the scope of after-flame wind combustor.
For tangentially-fired boiler, the high temperature corrosion of water-cooling wall 19 mostly occurs in DC burner outlet jet downstream
Region, highly in orlop burner to the scope between the superiors' burner.
Water-cooling wall air film protection device of the present utility model, the i.e. high temperature in the water cooling wall region that high temperature corrosion easily occurs
On the upstream furnace wall of flame and flue gas breeze airflow, set and stove is injected into by air port with the air port of furnace wall at an angle, wind
Thorax, forms air curtain in the downstream of flame and flue gas stream, on the one hand the effect of air curtain can push away the breeze airflow whitewashed a wall or flame
To the center of furnace profile, with the erosive wear of the breeze airflow or flame that avoid whitewashing a wall to water-cooling wall, corrosion, on the other hand exist
Turned back under upstream thermal-flame, flue gas effect to downstream water-cooling wall region, one layer of oxidisability gas is formed in downstream water-cooling wall region
Atmosphere diaphragm, fundamentally solves the problems, such as water wall high temperature corrosion.
The natural air port that the clearance type air port or water-cooling wall segmentation dislocation that the utility model is set are formed is mainly close to above-mentioned
Region, positioned at the upstream of its corresponding thermal-flame and flue gas stream, so that air curtain is inclined in the case where upstream flame, high-temperature flue gas promote
Water-cooling wall 19, air barrier is formed, air film protection is formed to water-cooling wall 19, prevents the generation of high temperature corrosion.
On the thermal-flame in boiler water wall region and the upstream furnace wall of flue gas breeze airflow, if being tiltedly installed with dry-air blast
Mouthful, each air port is connected with the air channel being arranged on the outside of burner hearth.Specifically, for Opposite Firing Boiler, along burner hearth
Depth direction, some air ports is provided with the right-side wall between furnace depth 1/3rd and half, in furnace depth
Some air ports of center line symmetrical setting in right-side wall between half and 2/3rds on furnace depth direction, and
The angle of air port and right-side wall is acute angle, is in such as 30~45 °, the width in air port is 15~30cm；If dry-air blast is set on the wall of left side
Mouthful, and left side wall is symmetrical arranged with the air port in right-side wall；For tangentially-fired boiler, on burner outlet jet
Swim and some air ports are set on the furnace wall in region, and the angle of air port and furnace wall is acute angle, is such as in 30~45 °, the width in air port
For 15~30cm.
Adjacent air port is arranged at intervals, and forms clearance type air port.
Preferably, fired for Opposite Firing Boiler, the height in air port for orlop turbulent burner to burnout degree
The distance of burner or the distance less than orlop turbulent burner to after-flame wind combustor.
For tangentially-fired boiler, the height in air port for orlop burner between the superiors' burner away from
From, or less than the distance between orlop burner to the superiors' burner.
Air port is divided into some sections, and some sections of space sets along short transverse, i.e., using integral arrangement or segmentation cloth
Put.
In addition, for Opposite Firing Boiler, along furnace depth direction, conventional boiler right-side wall is divided into right side
I section 13 of wall, II section 14 of right-side wall, 15 3 sections of right-side wall III section, wherein, by right-side wall, II section 14 translates a spacing to outside body of heater
From such as 150mm~200mm, the gap between I section 13 of II section 14 of right-side wall and right-side wall, III section 15 of right-side wall forms natural wind
Mouthful.Wall also carries out step-by-step arrangement in this manner on the left of conventional boiler, and nature air port is formed on left side wall, right-side wall.
Deflector is provided with inside each air port in the utility model.
It is described in detail below by specific embodiment.
Embodiment 1
The present embodiment is directed to Opposite Firing Boiler, and some water-cooling walls 19 of conventional boiler and its fin are cut
Remove, boiler water wall region thermal-flame and flue gas breeze airflow upstream right-side wall on set with furnace wall be in certain angle
The first air port of clearance type 7 of degree.The first air port of clearance type 7 and the center line shape of water-cooling wall 6 are at a certain angle, and angle is 30~
Within 45 ° or appropriate angle.The first air port of clearance type 7 can be whole section of arrangement or step-by-step arrangement.Referring to Fig. 2 (a), whole section of cloth
It is distance of the boiler orlop turbulent burner to after-flame wind combustor to put specially by the height in the first air port 7, referring to Fig. 2
(b), step-by-step arrangement is specially that the first air port 7 is divided into some sections along short transverse, some sections in the height direction interval set
Put.Referring to Fig. 2 (c), can according to specific actual conditions, such as set the first air port 7 and the second air port 8 position and height according to
Perishable area size is needed to be determined.
Referring to Fig. 1, burner hearth front wall 1 that face-fired boiler includes being connected, right-side wall 4, wall 2 and left side wall after burner hearth
3, four furnace walls connect and compose by water-cooling wall 19 and fin.Some front wall firing devices 5 are provided with front wall 1, after burner hearth on wall 2
Some rear walls are provided with by burner 6, face-fired boiler both walls high temperature corrosion region 20, i.e., dash area is easily sent out in figure
Raw High Temperature Corrosion, therefore clearance type the first air port 7, the second air port 8, the 3rd air port 9 and the 4th air port 10 are arranged on pot
In stove right-side wall 5, and it is located at flame and flue gas stream upstream.Relative to front wall firing device 5, clearance type the first air port 7 and the second wind
Mouth 8 is located at its flame upstream, and relative to rear wall firing device 6, the air port 9 of clearance type the 3rd and the 4th air port 10 are also in its flame
Upstream.The distance of the first air port of clearance type 7 and front wall 1 is the 1/3 of furnace depth, and the 4th air port 10 and the distance of rear wall 2 are stove
The 1/3 of thorax depth, the first air port 7, the second air port 8, the height in the 3rd air port 9 and the 4th air port 10 are orlop burner 2
The distance between to after-flame wind combustor 2.The first air port of clearance type 7 and the air port 10 of clearance type the 4th, the second air port of clearance type 8 with
The air port 9 of clearance type the 3rd is using the center line in furnace depth direction as symmetry axis.The first air port 7, the second air port 8 in right-side wall,
3rd air port 9 and the 4th air port 10 are connected with air channel 22, and the air port 7 of air channel 22 and first, the second air port 8, the 3rd wind
Mouth 9 and the 4th is provided with a regulating valve 11 between air port 10, and air channel wind regime is derived from compressed air or heat primary air main pipe.
Regulating valve and stop valve 12 are provided with the pipeline of compressed air or heat primary air main pipe to air channel 22.
Some air ports are provided with left side wall 3, and the air port on the air port and right-side wall on left side wall 3 is symmetrical arranged.
Referring to Fig. 3, for tangentially-fired boiler, water wall high temperature corrosion is predominantly located under burner jet back-fire side
Swim region 21, i.e. dash area in figure.Fig. 3 so that air-flow is the tangentially-fired boiler of counterclockwise rotates as an example, for
For the bugle of boiler 4, the air port 17 of clearance type the 6th and the air port 18 of clearance type the 7th are offered on boiler setting and is located at 4 bugle flames
Upstream, blow under the effect of 4 bugle flame flows, the water-cooling wall of deviation burner jet back-fire side downstream area 21, to water cooling
Wall forms air film protection.6th air port 17 and the 7th air port 18 are connected with air channel 22, and air channel wind regime is derived from compressed air
Or heat primary air main pipe.Regulating valve and cut-off are provided with the pipeline of compressed air or heat primary air main pipe to air channel 22
Valve 12.Regulating valve 11 is provided between the air port 17 of air channel 22 and the 6th, the 7th air port 18.
It is provided with other furnace walls of boiler and the mutually isostructural air port in air port on the furnace wall.
Embodiment 2
Referring to Fig. 4, for face-fired boiler, conventional boiler right-side wall is divided into three sections：I section 13 of right-side wall, right side
III section 15 of II section 14 of wall and right-side wall, wherein II section of 14 region for easily generation water wall high temperature corrosion of right-side wall, right side
II section of 14 distance apart from front wall 1 and rear wall 2 of wall is the 1/3 of furnace depth.Compared with conventional boiler, II section 14 of right-side wall to
The outer direction translation 150mm~200mm of stove, and with forming the 5th air port 16, II section 14 of right-side wall and right side between I section 13 of right-side wall
Bafeng mouth 23 is formed between III section 15 of wall, the 5th air port 16 is located at the flame of front wall firing device 5 and flue gas stream upstream, Bafeng mouth
23 are located at the flame of rear wall firing device 6 and flue gas stream upstream.5th air port 16 and the height of Bafeng mouth 23 are the combustion of boiler orlop
Burner 2 is to the absolute altitude of after-flame wind combustor 2 (i.e. the distance between boiler orlop burner 2 to after-flame wind combustor 2), due to the right side
II section 14 of side wall is mobile to burner hearth outside, also reduces flame or coal dust the washing away to II section of 14 water-cooling wall 19 of right-side wall of eddy flow
Corrosion impact.Wall also carries out step-by-step arrangement in this manner on the left of conventional boiler, so as to form nature in left side wall, right-side wall
Air port.
Referring to Fig. 1, the air channel 22 in the utility model is arranged in the back-fire side of water-cooling wall 19, its position and the first wind
The 7, second air port 8 of mouth, the 3rd air port 9, the 4th air port 10 are corresponding.
Referring to Fig. 3, the air channel 22 in the utility model is arranged in the back-fire side of water-cooling wall 19, its position and the 6th wind
The 17, the 7th air port 18 of mouth is corresponding.
Referring to Fig. 4, the air channel 22 in the utility model is arranged in the back-fire side of water-cooling wall 19, its position and tendencies
Mouth 16, Bafeng mouth 23 are corresponding.
Due to the first air port 7, the second air port 7, the 3rd air port 9, the 4th air port 10, the 5th air port 16, the 6th air port 17,
Seven air ports 18 and Bafeng mouth 23 can be whole section of arrangement or step-by-step arrangement, such air channel 22 can also be whole section of arrangement or
Person's step-by-step arrangement.
The wind regime of air channel 22 is derived from compressed air or heat primary air main pipe.In compressed air or heat primary air main pipe to wind
Filter screen, regulating valve 11, stop valve 12 are respectively arranged with road 22.
Settable deflector inside each air port in the utility model, the air-supply in air channel is through deflector with certain angle
Degree is injected into burner hearth.
Water-cooling wall air film protection device of the present utility model, feature are the water cooling wall region of high temperature corrosion is easily occurring
Flame and flue gas stream upstream, set the clearance type with water-cooling wall at an angle, with certain length and proper width special
The air port of structure, after wind is ejected by the air port of special construction, along flue gas stream shape between flame, high-temperature flue gas and water-cooling wall
Into air curtain, air curtain is inclined to water-cooling wall in the case where flame, high-temperature flue gas promote, and forms air barrier, and forming air film to water-cooling wall protects
Shield.
The form of air curtain is determined by outlet style and internal structure.Air curtain is that high temperature corrosion region easily occurs in water-cooling wall
Upstream the clearance type air port of one or more layers special construction is set, or pass through and change left side wall, right-side wall water wall structure shape
Into the air port of natural angle, oxidizing atmosphere diaphragm is formed at water-cooling wall.
Claims (10)
1. a kind of boiler water wall air film protection device, it is characterised in that thermal-flame and flue gas in boiler water wall region
On the upstream furnace wall of breeze airflow, some air ports are tiltedly installed with, each air port is connected with the air channel being arranged on the outside of burner hearth.
A kind of 2. boiler water wall air film protection device according to claim 1, it is characterised in that
For Opposite Firing Boiler, along furnace depth direction, between furnace depth 1/3rd and half
Some air ports are provided with right-side wall, on furnace depth in the right-side wall between furnace depth half and 2/3rds
Some air ports of center line symmetrical setting in direction；Some air ports, and left side wall and the air port in right-side wall are set on the wall of left side
It is symmetrical arranged；
For tangentially-fired boiler, some air ports are set on the furnace wall of burner outlet jet upstream region.
A kind of 3. boiler water wall air film protection device according to claim 1 or 2, it is characterised in that
For Opposite Firing Boiler, the angle of air port and side wall is acute angle；
For tangentially-fired boiler, the angle of air port and furnace wall is acute angle.
4. a kind of boiler water wall air film protection device according to claim 3, it is characterised in that the width in air port is 15
~30cm；For Opposite Firing Boiler, the angle of air port and side wall is 30~45 °；For tangentially-fired boiler,
The angle of air port and furnace wall is 30~45 °.
5. a kind of boiler water wall air film protection device according to claim 1 or 2, it is characterised in that air port interval is set
Put, form clearance type air port.
A kind of 6. boiler water wall air film protection device according to claim 1 or 2, it is characterised in that
For Opposite Firing Boiler, the height in air port is distance of the orlop turbulent burner to after-flame wind combustor；
For tangentially-fired boiler, the height in air port is the distance between orlop burner to the superiors' burner.
A kind of 7. boiler water wall air film protection device according to claim 1 or 2, it is characterised in that
For Opposite Firing Boiler, the height in air port be less than orlop turbulent burner to after-flame wind combustor away from
From；
For tangentially-fired boiler, the height in air port is less than the distance between orlop burner to the superiors' burner.
8. a kind of boiler water wall air film protection device according to claim 1 or 2, it is characterised in that air port is along highly
Direction is divided into some sections, and some sections of interval settings.
9. a kind of boiler water wall air film protection device according to claim 1, it is characterised in that for opposed firing
Burning boiler, along furnace depth direction, boiler right-side wall is divided into right-side wall I section (13), right-side wall II section of (14), right-side wall
III section (15) three sections, wherein, right-side wall II section (14) is translated into 150mm~200mm, II section of right-side wall (14) and the right side to outside body of heater
Gap between side wall I section (13), III section of right-side wall (15) forms natural wind mouth；Wall is set and structure in right-side wall on the left of boiler
Identical nature air port.
10. a kind of boiler water wall air film protection device according to claim 1, it is characterised in that inside each air port
It is provided with deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720380847.6U CN206637650U (en) | 2017-04-12 | 2017-04-12 | A kind of boiler water wall air film protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720380847.6U CN206637650U (en) | 2017-04-12 | 2017-04-12 | A kind of boiler water wall air film protection device |
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| Publication Number | Publication Date |
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| CN206637650U true CN206637650U (en) | 2017-11-14 |
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| CN201720380847.6U Active CN206637650U (en) | 2017-04-12 | 2017-04-12 | A kind of boiler water wall air film protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989411A (en) * | 2017-04-12 | 2017-07-28 | 西安热工研究院有限公司 | A kind of boiler water wall air film protection device |
| CN109058982A (en) * | 2018-06-20 | 2018-12-21 | 西安西热锅炉环保工程有限公司 | A kind of adherent wind system for preventing and treating tangentially-fired boiler water wall high temperature corrosion |
-
2017
- 2017-04-12 CN CN201720380847.6U patent/CN206637650U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989411A (en) * | 2017-04-12 | 2017-07-28 | 西安热工研究院有限公司 | A kind of boiler water wall air film protection device |
| CN106989411B (en) * | 2017-04-12 | 2024-01-19 | 西安热工研究院有限公司 | Boiler water-cooled wall air film protection device |
| CN109058982A (en) * | 2018-06-20 | 2018-12-21 | 西安西热锅炉环保工程有限公司 | A kind of adherent wind system for preventing and treating tangentially-fired boiler water wall high temperature corrosion |
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