CN202532455U - Arrangement mode of plasma oil-free ignition device - Google Patents

Arrangement mode of plasma oil-free ignition device Download PDF

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Publication number
CN202532455U
CN202532455U CN2011205503564U CN201120550356U CN202532455U CN 202532455 U CN202532455 U CN 202532455U CN 2011205503564 U CN2011205503564 U CN 2011205503564U CN 201120550356 U CN201120550356 U CN 201120550356U CN 202532455 U CN202532455 U CN 202532455U
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China
Prior art keywords
plasma
boiler
burner
oil ignition
ignition
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CN2011205503564U
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Chinese (zh)
Inventor
郑路
张建文
赵石荣
蒋振忠
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Shanghai Boiler Works Co Ltd
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Shanghai Boiler Works Co Ltd
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Priority to CN2011205503564U priority Critical patent/CN202532455U/en
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Abstract

The utility model discloses an arrangement mode of a plasma oil-free ignition device. The plasma oil-free ignition device, at least two layers of main burners, a primary air pipeline, a secondary air pipeline and a layer of secondary burner for installing the plasma oil-free ignition device are adopted in the arrangement mode; the secondary burner is connected with the primary air pipeline; and the primary air pipeline communicated with the secondary burner is closed after ignition. According to the technical scheme, the plasma oil-free ignition device and the main burners of a boiler are separated on function; when the boiler is started, pulverized coal airflow is delivered to the plasma oil-free ignition device, ignited, sprayed to a hearth and burnt; and after the boiler can realize stable combustion, the plasma oil-free ignition device is closed, and the pulverized coal airflow is sprayed to the hearth through the main burners of the boiler and continuously burnt.

Description

A kind of arrangement of plasma non-oil ignition device
Technical field
The present invention relates to the utility model and belong to the thermal boiler field, relate to the arrangement of boiler-burner, relate in particular to a kind of arrangement of plasma non-oil ignition device.
Background technology
The mode that traditional station boiler igniting is generally adopted is a grease gun igniting.First some oil combustion gun during boiler ignition start, oil behind the burning certain hour are heated to burner hearth the ignition temperature of breeze airflow in burner hearth, be blown into burner hearth with coal dust and carry out oily coal multifuel combustion this moment.When boiler reaches more than 50% load, when breeze airflow can smooth combustion, fuel oil is excised gradually, accomplish the boiler ignition start process.In order to practice thrift cost, reduce the fuel oil consumption of station boiler, lot of domestic and international company has developed multiple plasma non-oil ignition device, and on a lot of station boilers, is widely used.
The plasma non-oil ignition device is a kind of internally fired device, and it comes firing coal-dust by being installed in the inner plasma generator generation plasma of burner, and pulverized coal flame sprays to burner hearth from burner inside.Because the main effect of this device is the stable wind breeze airflow of lighting a time when guaranteeing boiler startup, so the measure of taking during design concentrates on smooth combustion and prevents nozzle scaling loss aspect.And the main burner of boiler is a kind of device of external firing, generally requires a wind breeze airflow leaving burner nozzle 300mm~500mm place stable ignition, and flame does not spray to burner hearth from burner inside.So the design philosophy of the main burner of plasma non-oil ignition device and boiler, specification requirement and major function are inconsistent.
The plasma non-oil ignition device uses as main burner again after igniting finishes usually now.This has caused some problems, such as:
1) the plasma non-oil ignition device needs in burner inside to adopt a large amount of air film cooling airs, and when the plasma non-oil ignition device used as main burner, this can cause the combustion stability of a wind breeze airflow to descend.
2) the plasma non-oil ignition device is not suitable for the structure that is designed to swing up and down usually; Even adopt swinging structure reluctantly; Effect is also bad, and the main burner of boiler all need design the structure that swings up and down, so because the difference on the function; Structure to whether being designed to swing up and down has very big influence, and the structure that swings up and down will have influence on the adjusting function of boiler temperature.
3) difficult deep or light mode or the horizontal bias mode up and down of adopting of plasma non-oil ignition device; And the main burner of boiler much all need be designed to the burner of deep or light separation; So because difference on the function; Cause the boiler-burner difficult design, the burner performance of often having taken into account both is not good, causes the combustion stability of a wind breeze airflow to descend.
The utility model content
The purpose of the utility model is to present plasma non-oil ignition device and the overlapping deficiency of bringing of boiler main burner functions, and a kind of arrangement of plasma non-oil ignition device of the combustion stability ability that does not influence a wind breeze airflow is provided.
The thinking of the utility model is; The plasma non-oil ignition device is used as a special ignition of the boiler device; Main burner with boiler separates on function fully; Help the plasma non-oil ignition device of design more reasonable and the main burner of boiler, can give play to the optimum performance of two kinds of devices better.
In order to achieve the above object; The utility model adopts following technical solution to be achieved: a kind of arrangement of plasma non-oil ignition device; Comprise plasma non-oil ignition device, at least 2 layers of main burner, airduct road, secondary wind pipeline; Also comprise 1 layer of auxiliary burner that is used to install the plasma non-oil ignition device, auxiliary burner is connected with the airduct road one time, and an airduct road that leads to auxiliary burner is closed after igniting is accomplished.In the present technique scheme; Plasma non-oil ignition device and boiler main burner separate on function; During boiler startup, breeze airflow is sent into the plasma non-oil ignition device and is lighted and spray into burner hearth burning, treat that boiler can smooth combustion after; Close the plasma non-oil ignition device, breeze airflow then main burner through boiler sprays into burner hearth comes sustained combustion.The plasma non-oil ignition device can only just use when ignition of the boiler or low-load combustion-stabilizing.
Main burner and shared airduct road of auxiliary burner that the plasma non-oil ignition device is housed are equipped with the switching baffle plate on the airduct road between main burner and the auxiliary burner.
The main burner of plasma non-oil ignition device and boiler is for arranging up and down, and the main burner of boiler is last, and the plasma non-oil ignition device is following.
The main burner of plasma non-oil ignition device and boiler is for arranging up and down, and the plasma non-oil ignition device is last, and the main burner of boiler is following.
The plasma non-oil ignition device is arranged between the main burner of two boilers.
The main burner of plasma non-oil ignition device and boiler is a lateral arrangement, and the plasma non-oil ignition device is arranged in the main burner side of boiler.
The utility model has the advantages that: the plasma non-oil ignition device is internally fired device; The main burner of boiler is the device of external firing; Two kinds of device separately designs on function are made respectively, and subitem is installed can give full play to both performances; Help the more excellent plasma non-oil ignition device of design performance and the burner of boiler, and design the arrangement of burner that is fit to more to multi-form boiler and different fire coals.The utility model, notion is distinct, and is simple in structure, reasonable in design, and investment and operating cost are moderate, and cost performance is high.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.
Position view (arranged beneath) and side view when Fig. 1 plasma non-oil ignition device and main burner corner tangential firing
Position view (arranged beneath) when Fig. 2 plasma non-oil ignition device and main burner front-back wall opposed firing
Position view when Fig. 3 plasma non-oil ignition device and main burner corner tangential firing (arranging between two burners) and side view
Fig. 4 plasma non-oil ignition device and main burner position view (lateral arrangement)
The cross-section location sketch map of boiler when Fig. 5 plasma non-oil ignition device and main burner lateral arrangement
Description of reference numerals: A layer main burner 1, B layer main burner 2,3, wind pulverized coal channels 4 of auxiliary burner switch baffle plate 5, plasma non-oil ignition device 6, turbulent burner 7, main burner 8.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation, but the present invention is not limited to following embodiment.
Embodiment 1
With reference to Fig. 1, the arrangement of a kind of plasma non-oil ignition device of the utility model, boiler adopts the corner tangential firing mode; The main burner of plasma non-oil ignition device 6 and boiler is separately design on function, makes respectively, and subitem is installed; The main burner of boiler is A layer, B layer; Be arranged in the top, auxiliary burner 3 is arranged in the below, and plasma non-oil ignition device 6 is installed in the auxiliary burner 3.The auxiliary burner 3 and 2 shared wind pulverized coal channels 4 of B layer main burner of plasma non-oil ignition device 6 are housed; This airduct road is equipped with and switches baffle plate 5, switches the coal dust amount of leading to plasma non-oil ignition device 6 or boiler B layer main burner 2 through baffle plate 5.During ignition of the boiler, switch baffle plate, make whole breeze airflows be sent to plasma non-oil ignition device 6 and light and spray into the burner hearth burning; Treating in the boiler that local temperature field is elevated to can smooth combustion; And after can lighting A layer main burner 1, A layer burner input burning, continue to be elevated to can smooth combustion in the temperature field in the boiler; And after can lighting B layer main burner 2; Close plasma non-oil ignition device 6 and switch baffle plate, no longer breeze airflow is sent to the auxiliary burner 3 that the plasma non-oil ignition device is housed, spray into burner hearth smooth combustion but be sent to B layer main burner 2.After plasma non-oil ignition device 6 is finished the work, can withdraw from burner hearth protection.
Embodiment 2
With reference to Fig. 2, the difference of present embodiment and embodiment 1 is that boiler adopts front-back wall opposed firing mode, and plasma non-oil ignition device 6 is following, and the turbulent burner 7 of boiler is last.Same through changing the baffle plate angle, breeze airflow is lighted through plasma non-oil ignition device 6 is earlier sent into boiler, treat that boiler can smooth combustion after, switch the baffle plate angle again, make breeze airflow spray into boiler combustion from the boiler main burner.
Embodiment 3
With reference to Fig. 3, the difference of present embodiment and embodiment 1 is that plasma non-oil ignition device 6 is arranged between two main burners.Switch through baffle plate, make breeze airflow light and spray into the burner hearth burning through plasma non-oil ignition, treat that boiler can smooth combustion after, change the baffle plate angle, make breeze airflow spray into boiler combustion from the boiler main burner.
Embodiment 4
With reference to Fig. 4 and Fig. 5, the difference of present embodiment and embodiment 1 is that plasma non-oil ignition device 6 is arranged in main burner 8 sides.Regulate through baffle plate, make breeze airflow light and spray into the burner hearth burning through plasma non-oil ignition, treat that boiler can smooth combustion after, change the baffle plate angle, make breeze airflow spray into boiler combustion from boiler main burner 8.

Claims (6)

1. the arrangement of a plasma non-oil ignition device; Comprise plasma non-oil ignition device, at least 2 layers of main burner, airduct road, secondary wind pipeline; It is characterized in that; Also comprise 1 layer of auxiliary burner that is used to install the plasma non-oil ignition device, auxiliary burner is connected with the airduct road one time, and an airduct road that leads to auxiliary burner is closed after igniting is accomplished.
2. the arrangement of plasma non-oil ignition device according to claim 1; It is characterized in that; Main burner and shared airduct road of auxiliary burner that the plasma non-oil ignition device is housed are equipped with the switching baffle plate on the airduct road between main burner and the auxiliary burner.
3. the arrangement of plasma non-oil ignition device according to claim 1 and 2 is characterized in that, the main burner of plasma non-oil ignition device and boiler is for arranging up and down, and the main burner of boiler is last, and the plasma non-oil ignition device is following.
4. the arrangement of plasma non-oil ignition device according to claim 1 and 2 is characterized in that, the main burner of plasma non-oil ignition device and boiler is for arranging up and down, and the plasma non-oil ignition device is last, and the main burner of boiler is following.
5. the arrangement of plasma non-oil ignition device according to claim 1 and 2 is characterized in that, the plasma non-oil ignition device is arranged between the main burner of two boilers.
6. the arrangement of plasma non-oil ignition device according to claim 1 and 2 is characterized in that, the main burner of plasma non-oil ignition device and boiler is a lateral arrangement, and the plasma non-oil ignition device is arranged in the main burner side of boiler.
CN2011205503564U 2011-12-23 2011-12-23 Arrangement mode of plasma oil-free ignition device Active CN202532455U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205503564U CN202532455U (en) 2011-12-23 2011-12-23 Arrangement mode of plasma oil-free ignition device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205503564U CN202532455U (en) 2011-12-23 2011-12-23 Arrangement mode of plasma oil-free ignition device

Publications (1)

Publication Number Publication Date
CN202532455U true CN202532455U (en) 2012-11-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205503564U Active CN202532455U (en) 2011-12-23 2011-12-23 Arrangement mode of plasma oil-free ignition device

Country Status (1)

Country Link
CN (1) CN202532455U (en)

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