CN207006192U - A kind of soot blower system for boiler horizontal gas pass - Google Patents
A kind of soot blower system for boiler horizontal gas pass Download PDFInfo
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- CN207006192U CN207006192U CN201720765889.1U CN201720765889U CN207006192U CN 207006192 U CN207006192 U CN 207006192U CN 201720765889 U CN201720765889 U CN 201720765889U CN 207006192 U CN207006192 U CN 207006192U
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Abstract
A kind of soot blower system for boiler horizontal gas pass is the utility model is related to, is mainly used in coal-burning boiler.Usual fouling phenomenon is serious at coal-burning boiler horizontal flue furnace arch, furnace nose, and there is presently no effective solution.Soot blower system of the present utility model includes compressed air main pipe and several soot blowing units, and each soot blowing unit includes compressed air branch pipe, hand sluice valve, magnetic valve, pressure gauge, several blast caps and multiple wearing-resistant tiles, is characterized in：The compressed air branch pipe is connected with compressed air main pipe, the hand sluice valve, magnetic valve and pressure gauge are installed in realize the function per the independent soot blowing of road compressed air branch pipe on compressed air branch pipe, and the hand sluice valve, magnetic valve and pressure gauge are respectively positioned on outside boiler；The blast cap is directly anchored on the two neighboring fin of adjacent two water screen tubes in boiler, and the blast cap is connected with compressed air branch pipe, and the wearing-resistant tile is sleeved on water screen tube.The utility model is easy to adjust, soot blowing works well.
Description
Technical field
A kind of soot blower system for boiler horizontal gas pass is the utility model is related to, is mainly used in coal-burning boiler.
Background technology
Usual fouling phenomenon is serious at coal-burning boiler horizontal flue furnace arch, furnace nose, and serious dust stratification not only reduces flue gas with changing
Heat-transfer surface between hot device, reduces the heat transfer effect of heat exchanger, while also changes flue gas flow field.It is horizontal for coal-burning boiler
Dust stratification serious situation at flue furnace arch, furnace nose, occur many solution methods both at home and abroad.
Such as in Publication No. CN104180379A Chinese patent, disclose a kind of for π type boiler horizontal gas passes
Ash-blowing method and device, it is made up of temp measuring system, control module and soot blower system, and temp measuring system includes being arranged on walling of flue
The first hygrosensor and second temperature detector, soot blower system include air supply pipe, the magnetic valve being arranged on air supply pipe, with
And the blast cap for being connected and being arranged on flue bottom wall with air supply pipe, blast cap are uniformly distributed；First hygrosensor and second temperature
Detector link control module, control module connection magnetic valve；The soot blower to by hygrosensor come detect heat exchange
The dust stratification degree in face, so as to control soot blower to be automatically performed deashing work；In fact, heat exchange temperature is by the comprehensive of several factors
Group photo rings, and hygrosensor can not reflect real heat exchanger dust stratification situation by detecting the temperature of heat exchanger.
And for example in Publication No. CN104696975A Chinese patent, a kind of steam blast cap soot blower system and side are disclosed
Method, the steam blast cap soot blower system include purge steam pipe, steam blast cap nozzle, steam main and fin；Part purges steam
Pipe is arranged in boiler furnace arch, furnace nose region along furnace chamber width, and remainder is arranged in boiler horizontal gas pass along furnace chamber width
Region；Steam blast cap nozzle is hollow structure, and multiple steam blast cap nozzles, Duo Gezheng are fixedly mounted on each pipe that purges steam
Vapour blast cap nozzle is each passed through fin and purged steam installed in same root on pipe；The more pipes that purge steam connect the one of steam main
End, the other end of steam main connect auxiliary vapour header, and the superheated steam of the auxiliary vapour header pipe that purged steam successively to every blows
Sweep, the jetted hole of the steam blast cap nozzle of the every pipe that purges steam sprays superheated steam, by boiler furnace arch, furnace nose or horizontal flue
Dust stratification is secondary to be kicked up, and the flowing flue gas by passing through carries away the dust stratification, and the steam blast cap soot blower system uses steam wind
Cap soot blowing can effectively solve the problems, such as the dust stratification of furnace arch, furnace nose region and horizontal flue, but it uses steam as sootblowing dielectric, real
On border, many power plant do not have unnecessary steam and can be used for soot blowing, insufficient for power plant steam surplus, and compressed air surplus
Sufficient situation is, it is necessary to using the soot blower and ash-blowing method suitable for air soot blowing.
In summary, although blast cap soot blower system can effectively solve asking for dust stratification at coal-burning boiler horizontal flue furnace arch, furnace nose
Topic, but when power plant steam lays in surplus deficiency, the sootblowing dielectric of other forms, such as compressed air can only be used.When adopting
During by the use of compressed air as sootblowing dielectric, some power plant are because compressed air gas source surplus not enough abundance is, it is necessary to soot blower system
Optimized with ash-blowing method, just can guarantee that and also can effectively be purged in the case of source of the gas surplus is less, prevent dust deposit in flue；
When soot blower system installing space by limited time, when especially water-cooling wall fin spacing is excessively narrow, it is necessary to soot blower
Structure optimizes, and just can guarantee that the smooth installation of soot blower system.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provide a kind of system it is simple,
The soot blower system for boiler horizontal gas pass that easy to adjust, soot blowing works well, exist so as to solve coal-burning boiler horizontal flue
The dust stratification problem at furnace arch, furnace nose during the problems such as power plant's source of the gas amount is smaller or installing space is limited.
The technical scheme in the invention for solving the above technical problem is：This is used for the soot blower system of boiler horizontal gas pass
Including compressed air main pipe and several soot blowing units, each soot blowing unit includes compressed air branch pipe, hand sluice valve, electromagnetism
Valve, pressure gauge, several blast caps and multiple wearing-resistant tiles, its design feature are：The compressed air branch pipe is female with compressed air
Pipe is connected, and the hand sluice valve, magnetic valve and pressure gauge are installed on compressed air branch pipe to realize per road compressed air branch
The function of independent soot blowing is managed, compressed air dosage during reducing each soot blowing, so as to ensure the compression of power plant's other equipment
Air dosage, the hand sluice valve, magnetic valve and pressure gauge are respectively positioned on outside boiler；The blast cap is directly anchored to the phase in boiler
On the two neighboring fin of adjacent two water screen tubes, the blast cap connects with compressed air branch pipe, and the wearing-resistant tile is sleeved on water cooling
On wall pipe.So that the soot blower system, when using compressed air as sootblowing dielectric, some power plant are due to compressed air gas
Source amount surplus it is not sufficient enough, or soot blower system installing space by limited time, can effectively solve coal-burning boiler horizontal flue
Dust stratification problem at furnace arch, furnace nose.
Preferably, blast cap described in the utility model includes nozzle, blast cap lid, adapter and two reinforcement otic placodes, it is described to connect
The both sides of pipe are respectively respectively welded by a reinforcement otic placode and are fixed on the two neighboring fin of adjacent two water screen tubes；It is described
In adapter with fin fix position caliber be less than adapter in other positions caliber, suitable for adjacent two water screen tubes it
Between spacing it is smaller when to ensure that adapter can smoothly wear and be connected between the two neighboring fin of adjacent two water screen tubes；The wind
Cap is weldingly fixed in adapter, and the nozzle is fixed on blast cap and covered, the nozzle along flow of flue gas direction in boiler just
Anti- both direction is each provided with a spout to realize the positive and negative two-way purging function of compressed air.
Preferably, the utility model, along on boiler furnace depth direction, the compression that often row arranges more than two-way is empty
Gas branch pipe.Per the independent soot blowing of road compressed air branch pipe, to reduce each compressed air dosage, so as to ensure power plant, other set
Standby compressed air dosage.
Preferably, the both sides of each blast cap of the utility model are distributed with wearing-resistant tile.
A kind of ash-blowing method of the soot blower system for boiler horizontal gas pass described in use, its feature are：It is described to blow
The step of grey method, is as follows：Using discontinuity soot-blowing mode, per the independent soot blowing of road compressed air branch pipe, each purge time 1 divides
Clock, every entire row interval 5 minutes.
Preferably, the sootblowing dielectric that soot blower system described in the utility model uses is empty for compression of the pressure less than 1MPa
Gas.
The utility model compared with prior art, has advantages below and effect：1st, using blast cap soot blower, Ke Yiyou
Effect solves the dust stratification problem of furnace arch, furnace nose and horizontal flue.2nd, the utility model is realized in power plant steam storage level deficiency, can
To carry out the pattern of soot blowing using compressed air.3rd, the utility model is realized when power plant's source of the gas surplus is smaller, can be effective
Ground purges, and prevents dust deposit in flue.4th, the utility model realizes the installing space when soot blower system by prescribing a time limit, especially water-cooling wall
When fin spacing is excessively narrow so that blast cap adapter passes through adjacent fin space, ensures the smooth installation of soot blower system.
5th, it is simple in construction, just effectively solve the dust stratification problem of boiler furnace arch, furnace nose and horizontal flue by simple structure.6th, design
Rationally, design is unique, easy to use, wide market.
The utility model can remove the dust stratification in boiler furnace arch, furnace nose and horizontal flue four corner.It is mainly used in coal-fired pot
Dust stratification serious situation at stove horizontal flue furnace arch, furnace nose, serious dust stratification not only reduce the heat exchange between flue gas and heat exchanger
Face, reduces the heat transfer effect of heat exchanger, while changes flue gas flow field.Soot blower system of the present utility model can be solved effectively
Dust stratification problem at coal-burning boiler horizontal flue furnace arch, furnace nose.In addition, when using compressed air as sootblowing dielectric when, some power plant by
It is not sufficient enough in compressed air gas source surplus, it is necessary to optimize to soot blower system and ash-blowing method, just can guarantee that source of the gas surplus compared with
In the case of small, effectively purge, prevent dust deposit in flue；When the installing space of soot blower system is by limited time, especially water-cooling wall fin
When piece spacing is excessively narrow, it is necessary to the structure of soot blower is optimized, just can guarantee that the smooth installation of soot blower system, this
Utility model can effectively solve above-mentioned problem.
Brief description of the drawings
Fig. 1 is the structural representation for the soot blower system for being used for boiler horizontal gas pass in the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment Apoplexy cap.
In figure：1- compressed airs main pipe, 2- compressed airs branch pipe, 3- hand sluice valves, 4- magnetic valves, 5- blast caps, 6- abrasionproofs
Watt, 7- water screen tubes, 71- fins, 8- pressure gauges, 9- nozzles, 10- blast caps lid, 11- adapter, 12- strengthen otic placode.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Fig. 2, the soot blower system in the present embodiment for boiler horizontal gas pass includes the He of compressed air main pipe 1
Several soot blowing units.
Each soot blowing unit in the present embodiment includes compressed air branch pipe 2, hand sluice valve 3, magnetic valve 4, pressure gauge
8th, several blast caps 5 and multiple wearing-resistant tiles 6, compressed air branch pipe 2 are connected with compressed air main pipe 1, hand sluice valve 3, magnetic valve 4
It is installed in pressure gauge 8 on compressed air branch pipe 2, to realize the function per 2 independent soot blowing of road compressed air branch pipe, to subtract
Compressed air dosage during few each soot blowing, so as to ensure the compressed air dosage of power plant's other equipment, is needed to use in power plant
The other equipment of compressed air is common knowledge to those skilled in the art.Hand sluice valve 3, electromagnetism in the present embodiment
Valve 4 and pressure gauge 8 are respectively positioned on outside boiler, and are arranged in order along compressed air flowing direction.
Blast cap 5 in the present embodiment is directly weldingly fixed on the two neighboring fin of adjacent two water screen tubes 7 in boiler
On piece 71, the blast cap 5 and compressed air branch pipe 2 are connected, and wearing-resistant tile 6 is sleeved on water screen tube 7, and the both sides of each blast cap 5 are equal
Wearing-resistant tile 6 is distributed with.
Blast cap 5 in the present embodiment includes nozzle 9, blast cap lid 10, adapter 11 and two strengthen otic placodes 12, and the two of adapter 11
Side is respectively respectively welded by a reinforcement otic placode 12 and is fixed on the two neighboring fin 71 of adjacent two water screen tubes 7, that is, is connect
The side of pipe 11 is strengthened otic placode 12 by one and is weldingly fixed on the fin 71 of a water screen tube 7, same adapter 11
Opposite side is weldingly fixed on the fin 71 of another water screen tube 7 by another reinforcement otic placode 12, same for fixing
A water screen tube 7 and another water screen tube 7 for adapter 11 is adjacent, and for fixing this root water cooling of same adapter 11
The fin 71 on fin 71 and another water screen tube 7 on wall pipe 7 is adjacent.
The caliber at the position fixed in the adapter 11 of the present embodiment with fin 71 is less than the caliber at other positions in adapter 11,
I.e. adapter 11 uses reducing form, and the big middle part in caliber two of adapter 11 is small, between adjacent two water screen tubes 7
Away from less situation, can smoothly be worn with guarantee adapter 11 between being connected on the two neighboring fin 71 of adjacent two water screen tubes 7, just
While installation, applicable surface is expanded.
Blast cap lid 10 in the present embodiment is weldingly fixed in adapter 11, and nozzle 9 is fixed on blast cap lid 10, the nozzle 9
The positive and negative both direction in flow of flue gas direction is each provided with a spout to realize the positive and negative two-way of compressed air in along boiler
Purging function, i.e. nozzle 9 is provided with two spouts, in the two spouts, injection direction and the pot inner flue gas of the stove stream of a spout
Dynamic direction is identical, and flow of flue gas is in opposite direction in the injection direction and boiler of another spout, so can preferably realize pressure
The positive and negative two-way purging of contracting air, more effectively solves the dust stratification problem of boiler furnace arch, furnace nose and horizontal flue.
Under normal circumstances, along on boiler furnace depth direction, the compressed air branch that can be arranged more than two-way is often arranged
Pipe 2, such as often row can arrange two-way, three tunnels, four tunnel compressed air branch pipes 2.
The present embodiment uses the step of ash-blowing method for the soot blower system of boiler horizontal gas pass as follows：Using discontinuity
Soot-blowing mode, per 2 independent soot blowing of road compressed air branch pipe, each purge time 1 minute, every entire row interval 5 minutes.Soot blower system
The sootblowing dielectric used is less than 1MPa compressed air for pressure.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (4)
1. a kind of soot blower system for boiler horizontal gas pass, including compressed air main pipe and several soot blowing units, each soot blowing
Unit includes compressed air branch pipe, hand sluice valve, magnetic valve, pressure gauge, several blast caps and multiple wearing-resistant tiles, and its feature exists
In：The compressed air branch pipe is connected with compressed air main pipe, and the hand sluice valve, magnetic valve and pressure gauge are installed in compression
To realize the function per the independent soot blowing of road compressed air branch pipe in air branch pipe, the hand sluice valve, magnetic valve and pressure gauge are equal
Outside boiler；The blast cap is directly anchored on the two neighboring fin of adjacent two water screen tubes in boiler, the blast cap
Connected with compressed air branch pipe, the wearing-resistant tile is sleeved on water screen tube.
2. the soot blower system according to claim 1 for boiler horizontal gas pass, it is characterised in that：The blast cap includes spray
Mouth, blast cap lid, adapter and two reinforcement otic placodes, the both sides of the adapter are respectively respectively welded by a reinforcement otic placode is fixed on phase
On the two neighboring fin of adjacent two water screen tubes；The caliber at the position fixed in the adapter with fin is less than other in adapter
The caliber at position, suitable for the spacing between adjacent two water screen tubes it is smaller when to ensure that adapter can smoothly be worn be connected on adjacent two
Between the two neighboring fin of root water screen tube；The blast cap lid is weldingly fixed in adapter, and the nozzle is fixed on blast cap lid
On, positive and negative both direction of the nozzle along flow of flue gas direction in boiler is each provided with a spout to realize compressed air
Positive and negative two-way purging function.
3. the soot blower system according to claim 1 for boiler horizontal gas pass, it is characterised in that：It is deep along boiler furnace
Spend on direction, often row arranges compressed air branch pipe more than two-way.
4. the soot blower system according to claim 1 for boiler horizontal gas pass, it is characterised in that：The both sides of each blast cap
It is distributed with wearing-resistant tile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720765889.1U CN207006192U (en) | 2017-06-28 | 2017-06-28 | A kind of soot blower system for boiler horizontal gas pass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720765889.1U CN207006192U (en) | 2017-06-28 | 2017-06-28 | A kind of soot blower system for boiler horizontal gas pass |
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| CN207006192U true CN207006192U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720765889.1U Active CN207006192U (en) | 2017-06-28 | 2017-06-28 | A kind of soot blower system for boiler horizontal gas pass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143867A (en) * | 2017-06-28 | 2017-09-08 | 杭州华电能源工程有限公司 | A kind of soot blower system and ash-blowing method for boiler horizontal gas pass |
| CN108398966A (en) * | 2018-03-01 | 2018-08-14 | 鄂尔多斯市君正能源化工有限公司 | A kind of soot blower system pressure monitoring device and soot-blowing control method |
-
2017
- 2017-06-28 CN CN201720765889.1U patent/CN207006192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143867A (en) * | 2017-06-28 | 2017-09-08 | 杭州华电能源工程有限公司 | A kind of soot blower system and ash-blowing method for boiler horizontal gas pass |
| CN108398966A (en) * | 2018-03-01 | 2018-08-14 | 鄂尔多斯市君正能源化工有限公司 | A kind of soot blower system pressure monitoring device and soot-blowing control method |
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