CN2519147Y

CN2519147Y - Evaporating ignition installation for small oil gun

Info

Publication number: CN2519147Y
Application number: CN01279824U
Authority: CN
Inventors: 鞠胤宏; 赵虎军; 徐海康; 赵云
Original assignee: 鞠胤宏
Priority date: 2001-12-30
Filing date: 2001-12-30
Publication date: 2002-10-30
Anticipated expiration: 2011-12-30

Abstract

A small oil gun gasifying igniter consists of a pulverized coal burner and a small oil gun gasifying igniter. The small oil gun comprises a crate, a connection plate, by which the crate is connected with a fixed cover of glory hole, a firebox which is fixedly connected with the fixed cover of glory hole; wherein, the crate is internally connected with a storage container with two output ends, one being connected with a connecting pipe with the other end connected with a nozzle by a special inarch cap, and the other end being connected with a carburetor. The upper part of the connection plate is provided with a ptimary wind inlet pipe which is communicated with an air chute which is provided with a steering air current wind wheel. The upper part of the fixed cover of glory hole is provided with a quadric wind inlet pipe. An oil inlet pipe is provided with a regulating valve of throttle; a meter is arranged between the storage container and the carburetor; the primary wind inlet pipe and the quadric wind inlet pipe are respectively provided with an air volume adjusting knob; the nozzle is provided with a ventilating cowl. In the utility model, fuel is heated by flame, combusted fully, and the flame has a high temperature, thereby reaching the purpose of effective igniting coal power. The utility model can be widely used as a starting and combustion-supporting outfit used in various station boilers.

Description

Small Oil Gun Gasifying Ignition System

Technical field: the utility model relates to Gasifying Small Oil Gun and lights the generating plant pulverized coal boiler device.

Background technology: at present, the oil gun of station boiler startup and combustion-supporting application all is to adopt mechanical atomization or steam atomization basically.After oil is transported to nozzle, enter burner hearth by nozzle ejection mist of oil, in burner hearth, be subjected to temperature action to enter gasifying stage and air mixed combustion again, many mist of oil molecules gasification, and combustion that also is not able to do in time, just brought into flue and run away, so not only wasted raw material but also pollute to atmospheric environment by air-flow.With a 410th boiler is example, and single Oil Gun is about 1.5-2.0T/h, and 12 tons of each about oil consumptions of start and stop are amounted to about 30,000 yuan of RMB.In recent years, along with the rise of global crude oil price and domestic power plant finish the appearance of valency online policy, station boiler started and underload helps fuel oil more and more to be restricted.Each universities and colleges of the whole nation and research unit though energy resource saving work has obtained certain achievement, are difficult to really realize fuel-economizing significantly all in the novel combustion technology of research and development.

The content of utility model: overcome the deficiencies in the prior art, design a kind of simple in structure, good energy-conserving effect, the little Small Oil Gun Gasifying Ignition System of pollution.Small Oil Gun Gasifying Ignition System is made up of coal burner and dress Gasifying Small Oil Gun within it, and the Gasifying Small Oil Gun structure is seen Fig. 2, and it comprises a cabinet, a gusset piece that connects cabinet and fire door fixed cap; A combustion chamber that connects with the fire door fixed cap is provided with holder in cabinet, holder has two outputs, and an end connects cap by the spy and takes in succession, a termination gasifier, another termination nozzle of tube connector; Gusset piece top is provided with blast pipe one time, and one time blast pipe is connected the air channel, and ventilating duct is provided with guiding air-flow wind wheel, and fire door fixed cap top is provided with secondary wind inleting tube; The oil inlet pipe import has a throttle adjustment valve, is provided with instrument between holder and the gasifier, and one time blast pipe is provided with the air quantity adjusting knob, and secondary wind inleting tube is provided with the air quantity adjusting knob, and nozzle is provided with ventilator.The structure of coal burner is seen Fig. 3.Form by primary zone, secondary combustion chamber.The primary zone is made up of the cylinder that two-stage has tapering, and the secondary chamber that root has dense phase pulverized coal insertion pipe is made up of the cylinder that has three grades of cooling air films.Boiler primary wind and powder mixture is separated into dense rare two-phase behind elbow, dense phase pulverized coal is sent into primary zone's root, and the dilute phase coal dust is sent into secondary combustion chamber by a former airduct through the second-time burning chamber outer wall.The utility model since fuel oil behind flame heat gas, burn again, sufficient combustion, the flame temperature height can reach the purpose of effective firing coal-dust; Adopt the multistep ignition technology, after the small oil gun flame ignition dense phase pulverized coal, enter secondary combustion chamber and light the dilute phase coal dust, put combusting boiler then, whole ignition process divides three grades to finish.Adopt wind film cooling technology, make dilute phase coal dust cooling primary zone wall, secondary wind film cooling secondary combustion chamber wall reaches anti-coking scaling loss effect, replenishes after burning oxygen amount simultaneously.Adopt the deep or light isolation technics of elbow, the centrifugation of utilizing airduct to enter the previous elbow of coal burner is introduced primary zone's root with elbow outside dense phase pulverized coal, satisfies the requirement of firing coal-dust desired concn.

Fig. 1 is the utility model front cross-sectional view;

Fig. 2 is the Gasifying Small Oil Gun profile;

The specific embodiment: the Gasifying Small Oil Gun concrete structure is seen Fig. 2, and it comprises 4, one gusset pieces 7 that connect cabinet and fire door fixed cap of a cabinet; A combustion chamber 14 that connects with the fire door fixed cap is provided with holder 2 in cabinet, holder has two outputs, and an end connects cap 16 by the spy and takes in succession, a termination gasifier 15, another termination nozzle 19 of tube connector; Gusset piece top is provided with 5, blast pipes of a blast pipe 5 and connects air channel 11, and ventilating duct is provided with guiding air-flow wind wheel 12, and fire door fixed cap top is provided with secondary wind inleting tube 9; Oil inlet pipe 1 entrance point is provided with a throttle adjustment valve 3, is provided with 17, blast pipes of instrument between holder and the gasifier and is provided with air quantity adjusting knob 6, and secondary wind inleting tube is provided with air quantity adjusting knob 8, and nozzle is provided with ventilator 13.

The structure of coal burner is seen Fig. 3.Form by primary zone 20, secondary combustion chamber 21.The primary zone is made up of the cylinder that two-stage has tapering, and the secondary chamber that root has dense phase pulverized coal insertion pipe is made up of the cylinder that has three grades of cooling air films 22.Boiler primary wind and powder mixture is separated into dense rare two-phase behind elbow, dense phase pulverized coal is sent into primary zone's root, and the dilute phase coal dust is sent into secondary combustion chamber by a former airduct through the second-time burning chamber outer wall.Gasifying Small Oil Gun flame is lighted dense phase pulverized coal at primary zone's root, lights secondary combustion chamber dilute phase coal dust then, sprays into some combusting boiler in the burner hearth at last.The operation principle of Gasifying Small Oil Gun is: fuel oil is directly atomized burn, with the heat on the burning plate fuel is gasified, just direct burning gases fuel in the normal combustion process, thus be high burning efficiency and flame temperature greatly, the about 10-20kg/h of oil consumption per hour.Flame rigidity after the gasification is strong, is complete transparence, and root is blue thermal-flame, and centre and afterbody are transparent blushed flame.Flame temperature 1500C～2000C is applied in the original oil burner of replacement on the station boiler with the coal burner that is complementary, and can reduce the boiler startup amount of fuel greatly.

Coal burner is made up of primary zone and secondary combustion chamber, and the dense phase pulverized coal after separating through elbow enters secondary chamber and lights the dilute phase coal dust after a chamber is lighted by small oil gun, and the pulverized coal flame flame burner hearth of being lighted reaches the purpose of a combusting boiler.

The gasification combustor course of work is: open throttle adjustment valve 3, liquid fuel enters into gasifier 15 from crossing oil pipe 1, holder 2 enters spout 19 through tube connector 18, slowly start air quantity adjusting knob 6 simultaneously, the people that 8 blast pipes 5 enter enter combustion chamber 14 through ventilator 13, starting ignition, 14 have the ejection of fire bundle from the combustion chamber, open air quantity adjusting knob 8 again and enter combustion chamber 14 through guiding air-flow wind meeting 12 from the wind that secondary wind inleting tube 9 enters, gasifier 15 is subjected to temperature action promptly liquid fuel to be converted into fuel gas and to send into holder 2 in the short time, and holder 2 will be stablized sufficient source of the gas through connecting tube 18 and be supplied to nozzle 19 constantly to eject the flame of sufficient combustion.

Claims

1, a kind of Small Oil Gun Gasifying Ignition System is made up of coal burner and dress Gasifying Small Oil Gun within it, and it is characterized in that: small oil gun comprises a cabinet, a gusset piece that connects cabinet and fire door fixed cap; A combustion chamber that connects with the fire door fixed cap is provided with holder in cabinet, holder has two outputs, and an end connects cap by the spy and takes in succession, a termination gasifier, another termination nozzle of tube connector; Gusset piece top is provided with blast pipe one time, and one time blast pipe is connected the air channel, and ventilating duct is provided with guiding air-flow wind wheel, and fire door fixed cap top is provided with secondary wind inleting tube; The oil inlet pipe entrance point is provided with a throttle adjustment valve, is provided with instrument between holder and the gasifier, and one time blast pipe is provided with the air quantity adjusting knob, and secondary wind inleting tube is provided with the air quantity adjusting knob, and nozzle is provided with ventilator.

2, Small Oil Gun Gasifying Ignition System as claimed in claim 1, it is characterized in that: coal burner is made up of primary zone and secondary combustion chamber, the primary zone is made up of the cylinder that two-stage has tapering, and the secondary chamber that root has dense phase pulverized coal insertion pipe is made up of the cylinder that has three grades of cooling air films.