CN102980188A - Water-coal-slurry spray gun and water-coal-slurry boiler - Google Patents

Water-coal-slurry spray gun and water-coal-slurry boiler Download PDF

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Publication number
CN102980188A
CN102980188A CN2012105543749A CN201210554374A CN102980188A CN 102980188 A CN102980188 A CN 102980188A CN 2012105543749 A CN2012105543749 A CN 2012105543749A CN 201210554374 A CN201210554374 A CN 201210554374A CN 102980188 A CN102980188 A CN 102980188A
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CN
China
Prior art keywords
coal
water
slurry
gun barrel
baffle
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Granted
Application number
CN2012105543749A
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Chinese (zh)
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CN102980188B (en
Inventor
姜贵利
于国庆
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Qingdao Haizhong Yuanheng heat Ltd.
Original Assignee
Qingdao Haizhong Environmental Protection Boiler Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Qingdao Haizhong Environmental Protection Boiler Co Ltd filed Critical Qingdao Haizhong Environmental Protection Boiler Co Ltd
Priority to CN201210554374.9A priority Critical patent/CN102980188B/en
Publication of CN102980188A publication Critical patent/CN102980188A/en
Application granted granted Critical
Publication of CN102980188B publication Critical patent/CN102980188B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a water-coal-slurry spray gun and a water-coal-slurry boiler. The water-coal-slurry spray gun comprises a bracket, a cone-shaped baffle, a protection sleeve, a gun barrel and a conveying pipe, wherein the back end part of the protection sleeving is in threaded connection with an adjustment pipe; the gun barrel is fixedly connected with the adjustment pipe; the front end part of the gun barrel is fixedly sleeved with a sleeve; the middle part of the sleeve is provided with a first baffle; a first through hole is formed on the first baffle; a mixing pipeline is arranged between the first baffle and the conveying pipe; a plurality of air inlets are arranged on the side wall of the mixing pipeline; the outlet of the mixing pipeline faces the first through hole; the front end part of the sleeve is provided with a trumpet-shaped outlet; the tip part of the cone-shaped baffle is inserted into the trumpet-shaped outlet; and a gap between the cone-shaped baffle and the trumpet-shaped outlet forms a discharging hole. A blocked water-coal-slurry spray gun can be conveniently cleaned, so that the reliability of the water-coal-slurry boiler is improved.

Description

Water-coal-slurry spraying gun and coal water slurry boiler
Technical field
The present invention relates to boiler plant, relate in particular to a kind of water-coal-slurry spraying gun and coal water slurry boiler.
Background technology
At present, according to the energy characteristics of China, development and application clean coal technology, replace oil with coal are fundamental policies of national energy.Along with new cleaning fuel constantly occurs, the steam generator system of original burning single-fuel has highlighted significant limitation in some field, for present market situation, the boiler that a kind of novel concept, flammable pluralities of fuel have occurred is hybrid boiler.Coal water slurry boiler of the prior art adopts water-coal-slurry to act as a fuel usually, and water-coal-slurry is injected to by spray gun in the body of heater of coal water slurry boiler burns.Spray gun of the prior art generally includes support, taper block, protective casing, gun barrel and conveying pipeline; support is fixed on the leading section of protective casing; protective casing is enclosed within the outside of gun barrel; gun barrel is enclosed within the outside of conveying pipeline; also be provided with air inlet pipe on the gun barrel; the air inlet of air inlet pipe is positioned at the protective casing outside, and the taper block is fixed on the support and is inserted in the front port place of gun barrel, is spaced apart discharging opening between taper block and the gun barrel.In use, the gas that is filled with of air inlet pipe burns with being injected in the boiler through discharging opening after the water-coal-slurry that conveying pipeline is carried is mixed in gun barrel.But in the links such as preparation, transportation or storage of water-coal-slurry, the phenomenon of lump appears producing in water-coal-slurry easily, and the lump in the water-coal-slurry stops up the discharging opening of spray gun easily.And when spray gun occurs to stop up, need artificial unloading's spray gun cleaning lump, in this process, the temperature in the body of heater will descend rapidly, causes the reliability of coal water slurry boiler lower.
Summary of the invention
The invention provides a kind of water-coal-slurry spraying gun and coal water slurry boiler, in order to solve the lower defective of the reliability of coal water slurry boiler in the prior art, realize the water-coal-slurry spraying gun that easy cleaning stops up, improve the reliability of coal water slurry boiler.
The invention provides a kind of water-coal-slurry spraying gun, comprise support, taper block, protective casing, gun barrel and conveying pipeline, described support is fixed on the leading section of described protective casing, described protective casing is enclosed within the outside of described gun barrel, described gun barrel is enclosed within the outside of described conveying pipeline, also be provided with air inlet pipe on the described gun barrel, it is outside that the air inlet of described air inlet pipe is positioned at described protective casing, described taper block is fixed on the described support, the rearward end of the described protective casing adjustable pipe that has been threaded, described gun barrel is fixedly connected on the described adjustable pipe; The leading section of described gun barrel is fixed with sleeve pipe, the middle part of described sleeve pipe is provided with the first baffle plate, offer the first through hole on described the first baffle plate, be provided with mixing duct between described the first baffle plate and the described conveying pipeline, be provided with a plurality of air admission holes on the sidewall of described mixing duct, the outlet of described mixing duct is towards described the first through hole; The leading section of described sleeve pipe is provided with flaring exit, and the point of described taper block is inserted in the described flaring exit, and the interval between described taper block and the described flaring exit forms discharging opening.
Water-coal-slurry spraying gun provided by the invention, by the adjustable pipe that is threaded at protective casing, gun barrel is fixedly connected on the adjustable pipe, when the discharging opening between taper block and the described flaring exit is stopped up by the lump in the water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between taper block and the described flaring exit, thereby the lump that is stuck in the discharging opening place can conveniently be discharged, need not the workman and dismantle water-coal-slurry spraying gun, and not affecting coal water slurry boiler normally moves, realize the water-coal-slurry spraying gun that easy cleaning stops up, improved the reliability of coal water slurry boiler; And, because the distance between taper block and the described flaring exit is adjustable, realize the big or small adjustable of discharging opening, thereby realize the convenient load of regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun can be satisfied under different operating modes use.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct by air admission hole to carry out mixing with water-coal-slurry the first time, carry out mixing the second time with the residual gas of air inlet pipe input in a side of the first baffle plate from the water-coal-slurry of mixing duct output, guarantee that effectively water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can burn more fully.
Aforesaid water-coal-slurry spraying gun is provided with second baffle between described flaring exit and described the first baffle plate, is fixed with impact block on the described second baffle, offers a plurality of the second through holes around described impact block on the described second baffle.
Aforesaid water-coal-slurry spraying gun, the sidewall of described taper block offer many first grooves, and the madial wall of described flaring exit offers many second grooves corresponding with described the first groove.
Aforesaid water-coal-slurry spraying gun is provided with handwheel on the outer ring of described adjustable pipe.
Aforesaid water-coal-slurry spraying gun, the leading section of described mixing duct is provided with back-up ring, is provided with a plurality of passages on the described back-up ring.
The invention provides a kind of coal water slurry boiler, comprise aforesaid water-coal-slurry spraying gun.
Coal water slurry boiler provided by the invention, by the adjustable pipe that is threaded at protective casing, gun barrel is fixedly connected on the adjustable pipe, when the discharging opening between taper block and the described flaring exit is stopped up by the lump in the water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between taper block and the described flaring exit, thereby the lump that is stuck in the discharging opening place can conveniently be discharged, need not the workman and dismantle water-coal-slurry spraying gun, and not affecting coal water slurry boiler normally moves, realize the water-coal-slurry spraying gun that easy cleaning stops up, improved the reliability of coal water slurry boiler; And, because the distance between taper block and the described flaring exit is adjustable, realize the big or small adjustable of discharging opening, thereby realize the convenient load of regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun can be satisfied under different operating modes use.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct by air admission hole to carry out mixing with water-coal-slurry the first time, carry out mixing the second time with the residual gas of air inlet pipe input in a side of the first baffle plate from the water-coal-slurry of mixing duct output, guarantee that effectively water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can burn more fully.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of water-coal-slurry spraying gun embodiment of the present invention;
Fig. 2 is the structural representation of taper block among the water-coal-slurry spraying gun embodiment of the present invention;
Fig. 3 be among Fig. 2 A-A to cutaway view;
Fig. 4 is the structural representation of flaring exit among the water-coal-slurry spraying gun embodiment of the present invention;
Fig. 5 be among Fig. 4 B-B to cutaway view;
Fig. 6 is the structural representation of mixing duct among the water-coal-slurry spraying gun embodiment of the present invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Such as Fig. 1-shown in Figure 6, the present embodiment water-coal-slurry spraying gun, comprise support 1, taper block 2, protective casing 3, gun barrel 4 and conveying pipeline 5, support 1 is fixed on the leading section of protective casing 3, protective casing 3 is enclosed within the outside of gun barrel 4, gun barrel 4 is enclosed within the outside of conveying pipeline 5, also be provided with air inlet pipe 41 on the gun barrel 4, the air inlet 411 of air inlet pipe 41 is positioned at protective casing 3 outsides, taper block 2 is fixed on the support 1, the rearward end of protective casing 3 adjustable pipe 6 that has been threaded, gun barrel 4 is fixedly connected on the adjustable pipe 6; The leading section of gun barrel 4 is fixed with sleeve pipe 7, the middle part of sleeve pipe 7 is provided with the first baffle plate 71, offer the first through hole 711 on the first baffle plate 71, be provided with mixing duct 8 between the first baffle plate 71 and the conveying pipeline 5, be provided with a plurality of air admission holes 81 on the sidewall of mixing duct 8, the outlet of mixing duct 8 is towards the first through hole 711; The leading section of sleeve pipe 7 is provided with flaring exit 9, and the point of taper block 2 is inserted in the flaring exit 9, and the interval between taper block 2 and the flaring exit 9 forms discharging opening 10.
Particularly; the rearward end of the protective casing 3 in the present embodiment water-coal-slurry spraying gun adjustable pipe 6 that has been threaded; can realize that by rotating adjustable pipe 6 adjustable pipe 6 moves along the axis of protective casing 3; and that gun barrel 4 will be followed adjustable pipe 6 will be together mobile; gun barrel 4 in the present embodiment can directly be fixed on the adjustable pipe 6, and gun barrel 4 also can be fixed on the adjustable pipe 6 by conveying pipeline 5.After discharging opening 10 occurring and being stopped up by the lump in the water-coal-slurry, move to drive gun barrel 4 by rotating adjustable pipe 6, distance between taper block 2 and the flaring exit 9 is increased, thereby the lump that is stuck between taper block 2 and the flaring exit 9 can be discharged from the discharging opening 10 after increasing, realization need not the workman and dismantles the present embodiment water-coal-slurry spraying gun, just can clear up easily the lump at discharging opening 10 places, and in the process of cleaning lump, need not the coal water slurry boiler of stopping transport, guarantee that coal water slurry boiler can move continuously, improved the reliability of coal water slurry boiler, reduced simultaneously coal water slurry boiler and lost a large amount of heat energy because of obstruction.Wherein, be provided with sleeve pipe 7 on the gun barrel 4 in the present embodiment, the water-coal-slurry of output will be mixed in sleeve pipe 7 in the conveying pipeline 5, concrete, the water-coal-slurry of conveying pipeline 5 outputs enters into mixing duct 8, the gas of air inlet pipe 41 inputs is input to the sleeve pipe 7 from the gas outlet that gun barrel 4 front end end faces arrange, portion gas enters into mixing duct 8 by air admission hole 81 to carry out mixing with water-coal-slurry the first time, and the water-coal-slurry of output is mixed again with remaining gas from mixing duct 8, water-coal-slurry is through twice mixed processing, make water-coal-slurry can with the more uniform mixing of air, guarantee that water-coal-slurry can burn uniformly.In addition, because the distance between taper block 2 and the flaring exit 9 can be regulated as required, the Load Regulation of coal water slurry boiler can be according to the outlet size of regulating present embodiment water-coal-slurry spraying gun discharging opening 10 with the slurry amount of boiler, when needing adjusting large, the size of output utilizes moving forward and backward of adjustable pipe 6 to regulate, do not need blowing out, size freely, realize step-less adjustment, the present embodiment water-coal-slurry spraying gun can satisfy the requirement of different load, thereby can make the present embodiment water-coal-slurry spraying gun can be applicable to different operating modes.
Further, can mix more uniformly with air in order to make water-coal-slurry, be provided with second baffle 72 between flaring exit 9 in the present embodiment and the first baffle plate 71, be fixed with impact block 73 on the second baffle 72, offer a plurality of the second through holes 721 around impact block 73 on the second baffle 72.Concrete, water-coal-slurry and air mixture strike on the impact block 73 after the first through hole 711 on the first baffle plate 71 is exported, and the mixture of water-coal-slurry and air is further atomized, and the water-coal-slurry of atomizing is transported to discharging opening 10 places through the second through hole 72.Preferably, the edge of the impact block 73 in the present embodiment shelters from the edge of the second through hole 72, thereby guarantees that water-coal-slurry can be again through 72 outputs of the second through hole after clashing into atomizing.
Further, the sidewall of the taper block 2 in the present embodiment offers many first grooves 21, and the madial wall of flaring exit 9 offers many second grooves 91 corresponding with the first groove 21.Concrete, when coal water slurry boiler need to move under low-power mode, by adjusting adjustable pipe 6, flaring exit 9 and taper block 2 are sticked together, the first groove 21 and the second groove 91 form passage, and water-coal-slurry can only be exported from passage; And when coal water slurry boiler need to move under high power mode, by adjusting adjustable pipe 6, make flaring exit 9 away from taper block 2, discharging opening 10 is increased, meanwhile, the first groove 21 and the second groove 91 will lead to water-coal-slurry, guarantee that water-coal-slurry is smoothly by discharging opening 10 outputs.Wherein, for the convenient adjustable pipe 6 of adjusting, be provided with handwheel 61 on the outer ring of the adjustable pipe 6 in the present embodiment.In addition, in order to ensure air and the abundant mixing of water-coal-slurry of exporting from mixing duct 8, the leading section of mixing duct 8 is provided with back-up ring 82, is provided with a plurality of passages 83 on the back-up ring 82.Remaining air enters into the first baffle plate 71 and the space that back-up ring 82 forms by passage 83, exports from the first through hole 711 after guaranteeing water-coal-slurry and air fully mixing again.
The present embodiment water-coal-slurry spraying gun, by the adjustable pipe that is threaded at protective casing, gun barrel is fixedly connected on the adjustable pipe, when the discharging opening between taper block and the flaring exit is stopped up by the lump in the water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between taper block and the flaring exit, thereby the lump that is stuck in the discharging opening place can conveniently be discharged, need not the workman and dismantle water-coal-slurry spraying gun, and not affecting coal water slurry boiler normally moves, realize the water-coal-slurry spraying gun that easy cleaning stops up, improved the reliability of coal water slurry boiler; And, because the distance between taper block and the flaring exit is adjustable, realize the big or small adjustable of discharging opening, thereby realize the convenient load of regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun can be satisfied under different operating modes use.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct by air admission hole to carry out mixing with water-coal-slurry the first time, carry out mixing the second time with the residual gas of air inlet pipe input in a side of the first baffle plate from the water-coal-slurry of mixing duct output, guarantee that effectively water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can burn more fully.
The present invention also provides a kind of coal water slurry boiler, comprises the water-coal-slurry spraying gun among the water-coal-slurry spraying gun embodiment of the present invention.
The present embodiment coal water slurry boiler, by the adjustable pipe that is threaded at protective casing, gun barrel is fixedly connected on the adjustable pipe, when the discharging opening between taper block and the flaring exit is stopped up by the lump in the water-coal-slurry, move to drive gun barrel by rotating adjustable pipe, increase the distance between taper block and the flaring exit, thereby the lump that is stuck in the discharging opening place can conveniently be discharged, need not the workman and dismantle water-coal-slurry spraying gun, and not affecting coal water slurry boiler normally moves, realize the water-coal-slurry spraying gun that easy cleaning stops up, improved the reliability of coal water slurry boiler; And, because the distance between taper block and the flaring exit is adjustable, realize the big or small adjustable of discharging opening, thereby realize the convenient load of regulating water-coal-slurry spraying gun, water-coal-slurry spraying gun can be satisfied under different operating modes use.In addition, the leading section of conveying pipeline is provided with mixing duct, the portion gas of air inlet pipe input enters into mixing duct by air admission hole to carry out mixing with water-coal-slurry the first time, carry out mixing the second time with the residual gas of air inlet pipe input in a side of the first baffle plate from the water-coal-slurry of mixing duct output, guarantee that effectively water-coal-slurry and air mix uniformly, guarantee that water-coal-slurry can burn more fully.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. water-coal-slurry spraying gun, comprise support, taper block, protective casing, gun barrel and conveying pipeline, described support is fixed on the leading section of described protective casing, described protective casing is enclosed within the outside of described gun barrel, described gun barrel is enclosed within the outside of described conveying pipeline, also be provided with air inlet pipe on the described gun barrel, it is outside that the air inlet of described air inlet pipe is positioned at described protective casing, described taper block is fixed on the described support, it is characterized in that, the rearward end of the described protective casing adjustable pipe that has been threaded, described gun barrel is fixedly connected on the described adjustable pipe; The leading section of described gun barrel is fixed with sleeve pipe, the middle part of described sleeve pipe is provided with the first baffle plate, offer the first through hole on described the first baffle plate, be provided with mixing duct between described the first baffle plate and the described conveying pipeline, be provided with a plurality of air admission holes on the sidewall of described mixing duct, the outlet of described mixing duct is towards described the first through hole; The leading section of described sleeve pipe is provided with flaring exit, and the point of described taper block is inserted in the described flaring exit, and the interval between described taper block and the described flaring exit forms discharging opening.
2. water-coal-slurry spraying gun according to claim 1, it is characterized in that, be provided with second baffle between described flaring exit and described the first baffle plate, be fixed with impact block on the described second baffle, offer a plurality of the second through holes around described impact block on the described second baffle.
3. water-coal-slurry spraying gun according to claim 1 is characterized in that, the sidewall of described taper block offers many first grooves, and the madial wall of described flaring exit offers many second grooves corresponding with described the first groove.
4. water-coal-slurry spraying gun according to claim 1 is characterized in that, is provided with handwheel on the outer ring of described adjustable pipe.
5. water-coal-slurry spraying gun according to claim 1 is characterized in that, the leading section of described mixing duct is provided with back-up ring, is provided with a plurality of passages on the described back-up ring.
6. a coal water slurry boiler is characterized in that, comprises arbitrary described water-coal-slurry spraying gun such as claim 1-5.
CN201210554374.9A 2012-12-19 2012-12-19 Water-coal-slurry spray gun and water-coal-slurry boiler Expired - Fee Related CN102980188B (en)

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CN201210554374.9A CN102980188B (en) 2012-12-19 2012-12-19 Water-coal-slurry spray gun and water-coal-slurry boiler

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322631A (en) * 2020-03-13 2020-06-23 浙江鑫盛永磁科技有限公司 Combustion chamber ash treatment device based on magnetofluid power generation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172105A (en) * 1986-01-24 1987-07-29 Hitachi Ltd Combustion method and device for preventing production of nox
CN87103318A (en) * 1986-05-07 1987-12-02 株式会社日立制作所 Atomizer and the coal-water slurry fired boiler of use atomizer
CN2079257U (en) * 1990-04-10 1991-06-19 华煤水煤浆技术联合中心 Ramming type multistep water-coal mud atomizing nozzle
CN2474912Y (en) * 2001-02-28 2002-01-30 王令 Multifunction anti-clogging high concentration water coal slurry spray gun
CN2655045Y (en) * 2003-11-07 2004-11-10 四川省九达水煤浆技术产业有限公司 Dual-purpose burner using coal-water fluid and fuel oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172105A (en) * 1986-01-24 1987-07-29 Hitachi Ltd Combustion method and device for preventing production of nox
CN87103318A (en) * 1986-05-07 1987-12-02 株式会社日立制作所 Atomizer and the coal-water slurry fired boiler of use atomizer
CN2079257U (en) * 1990-04-10 1991-06-19 华煤水煤浆技术联合中心 Ramming type multistep water-coal mud atomizing nozzle
CN2474912Y (en) * 2001-02-28 2002-01-30 王令 Multifunction anti-clogging high concentration water coal slurry spray gun
CN2655045Y (en) * 2003-11-07 2004-11-10 四川省九达水煤浆技术产业有限公司 Dual-purpose burner using coal-water fluid and fuel oil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322631A (en) * 2020-03-13 2020-06-23 浙江鑫盛永磁科技有限公司 Combustion chamber ash treatment device based on magnetofluid power generation
CN111322631B (en) * 2020-03-13 2021-12-03 浙江鑫盛永磁科技有限公司 Combustion chamber ash treatment device based on magnetofluid power generation

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Effective date of registration: 20170122

Address after: 266200 Jimo, Shandong, Datong Street, No., No. 31 attached to the number of 2

Patentee after: Qingdao Haizhong Yuanheng heat Ltd.

Address before: Ma Dian Zhen Dong Xiao Tun Cun Jiaozhou, Shandong city of Qingdao province 266000

Patentee before: Qingdao Haizhong Environmental Protection Boiler Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150121

Termination date: 20191219