CN103868060A - Automatic flame stabilizing device of double-cyclone burner of W-shaped boiler - Google Patents
Automatic flame stabilizing device of double-cyclone burner of W-shaped boiler Download PDFInfo
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- CN103868060A CN103868060A CN201410112879.9A CN201410112879A CN103868060A CN 103868060 A CN103868060 A CN 103868060A CN 201410112879 A CN201410112879 A CN 201410112879A CN 103868060 A CN103868060 A CN 103868060A
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Abstract
The invention relates to an automatic flame stabilizing device of a double-cyclone burner of a W-shaped boiler. The automatic flame stabilizing device comprises an oxygen heater, an oxygen header pipe, an oxygen pipeline, a spin-down flame stabilizer, a fuel oil pipeline, the cyclone burner, an automatic propelling device, a micro oil gun and an oxygen ejection device, wherein the oxygen heater is communicated with the oxygen header pipe, the oxygen header pipe is communicated with the spin-down flame stabilizer through the oxygen pipeline, the fuel oil pipeline is communicated with the spin-down flame stabilizer, the lower half portion of the spin-down flame stabilizer is installed in the cyclone burner, the automatic propelling device is connected with the top of the spin-down flame stabilizer, the micro oil gun is arranged in the middle of the spin-down flame stabilizer, and the oxygen ejection device is installed at the bottom of the spin-down flame stabilizer. By means of the automatic flame stabilizing device, automatic flame stabilization of the boiler is achieved through high-temperature oxygen and very little fuel oil under underload or emergency conditions, a flame stabilization response speed at the millisecond level is achieved, oil consumption of the boiler is reduced, boiler operation safety and stability are greatly improved, and operation intensity is reduced.
Description
Technical field
The present invention relates to a kind of W type boiler bispin air duct burner automatic stable burning device.
Background technology
Approximately there is the W flame boiler that more than 50 burner is cyclone cylinder structure in China, and its igniting and low-load combustion-stabilizing are huge by oil mass.The each cold start of the type boiler of a 600MW approximately needs to consume 100～150 tons of fuel oils, the nearly kiloton of oil for simultaneously annual underload.In the situation that petroleum resources are day by day in short supply, huge oil consumption has brought heavy financial burden to user.
For this situation, China has researched and developed various W stove fuel-economizing firing techniques and has solved this problem:
Patent CN102913948A has announced a kind of igniter for W flame boiler, and this patent has increased coal burner at the tertiary air nozzle of former burner hearth front-back wall bottom, and between former burner and newly-increased burner, switch valve has been installed.The advantage of this patent is mainly the performance that does not change original burner, but exist underload or in emergency circumstances boiler need when combustion-supporting, the problem that can not switch in time, simultaneously, owing to having increased burner in lower furnace portion, reduce flame kernel, by causing the aqueous water evaporation point in boiler water-wall tube to propose, likely occurred upper water cold wall pipe overheating problem.
Patent CN201599792U has announced a kind of W flame boiler little oil burner, this patent coming before former cyclone separator designed bifurcated pipe on powder pipeline, the coal dust of drawing is sent into burner hearth by a burner newly increasing, this scheme has solved the not ignitable problem of former rotational flow coal dust air-flow, but newly-increased burner cooling changed original Furnace Aerodynamic Field, otherwise easily cause burner nozzle scaling loss, and, this scheme exists handover operation workload large equally, can not in case of emergency drop into rapidly the problem of steady combustion.
Patent CN201496958U has announced a kind of W flame cyclonic separation oil-minimum start-up burner, this patent is transformed in former burner, realize without switching, the problem that can drop into rapidly when steady combustion, but the fixed installation scheme that its resistance absorber is taked, will change the spin intensity of breeze airflow in former cyclone cylinder burner, and then change original Furnace Aerodynamic Field, this scheme will cause in actual moving process simultaneously, and the spin intensity of breeze airflow cannot be adjusted in time according to the operating mode of the variation of ature of coal and burning.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of principle advanced person, W type boiler bispin air duct burner automatic stable burning device safe and reliable, simple in structure, main purpose is to provide a kind of automatic stable burning device for the W type boiler that burner structure form is cyclone cylinder, make boiler at underload or in emergency circumstances can realize automatic stable burning with high-temperature oxygen and minute quantity fuel oil, realize the steady combustion response speed of Millisecond, not only can save a pot furnace oil, and greatly improved the security and stability of boiler operatiopn, reduce operation intensity.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of W type boiler bispin air duct burner automatic stable burning device, comprise oxygen heater, the female pipe of oxygen, oxygen channel, racemization stabilizer, fuel passage, cyclone cylinder burner, drill autofeeder, micro-oil gun and oxygen supplier, the open top of described oxygen heater, described oxygen heater is connected with the female pipe of described oxygen, the female pipe of described oxygen is connected with a side of described racemization stabilizer by described oxygen channel, described fuel passage is connected with the opposite side of described racemization stabilizer, the lower middle portion of described racemization stabilizer is arranged in described cyclone cylinder burner, described drill autofeeder is connected with the top of described racemization stabilizer, described oxygen channel and fuel passage are all near described drill autofeeder, described racemization stabilizer is hollow bushing structure, the center of described racemization stabilizer is provided with described micro-oil gun, bottom is provided with described oxygen supplier.
The invention has the beneficial effects as follows:
1, racemization stabilizer is hollow bushing structure, the center of described racemization stabilizer is provided with described micro-oil gun, high-pressure blast or oxygen enter the inside of racemization stabilizer, can play and purge and the effect of cooling micro-oil gun, prevent that coal dust from flowing backwards into the spray nozzle clogging that causes micro-oil gun in racemization stabilizer;
In the time that the normal operation of boiler does not need surely to fire, the high-pressure blast of sending in coal dust gas racemization stabilizer can purge with cooling micro-oil gun, prevents that coal dust from stopping up oil gun nozzle; In the time that boiler needs steady combustion, in coal dust gas racemization stabilizer, send into oxygen, micro-oil gun is carried out combustion-supporting, form high-temperature oxygen-enriched flame, instantaneous ignition coal dust, completes steady combustion task.
2, the diameter recruitment of racemization stabilizer is very little, and the decrease of the circulation area of the spout to cyclone cylinder burner, at below 10% of original area, therefore, can be offset spout circulation area by the aperture of modulating gas valve air door and change the impact bringing.
3, oxygen heater is uncovered structure, can guarantee under any circumstance, and the water temperature in oxygen heater all can not exceed the saturation temperature under atmospheric pressure correspondence, has also just guaranteed that oxygen can overtemperature, jeopardizes safety;
Oxygen heater has adopted first and with steam, water has been heated, the principle of reusable heat water heating oxygen, the structure of its opened type has guaranteed that its operating pressure is identical with atmospheric pressure, also just can guarantee that the water temperature in heater can be higher than 100 ℃, can prevent that the oxygen temperature in heater from can not exceed security clearance temperature, this mode of heating is safe, reliable, controlled, has guaranteed the long-term safety operation of oxygen system.
4, under the effect of drill autofeeder, the upright position of racemization stabilizer and boiler load are realized interlocking, in actual moving process, in the time that boiler load changes, automatically adjust the upright position of racemization stabilizer, to change the spin intensity of breeze airflow and the capacity of returns of hot flue gas, to adapt to the needs of low-load combustion-stabilizing.
Racemization stabilizer can utilize drill autofeeder to realize moving up and down of vertical direction, meet with this needs that boiler load or ature of coal change, when boiler load lower, or when ature of coal variation, can automatically racemization stabilizer be moved up, increase the spin intensity of the breeze airflow at cyclone cylinder burner outlet place, increase the hot exhaust gas volumn of recirculating zone, obviously improve the combustion stability of burner, also realized the automatic control of boiler load and racemization stabilizer interlocking.In actual moving process, according to predetermined curve, the operating position of racemization stabilizer changes automatically with the variation of boiler load.
5, the present invention has the multiple method of operation, and oil gun, high-temperature oxygen, cryogenic oxygen all can drop into separately or combinatorial introduction operation.In surely combustion process of reality, the difference of can root coal-fired ature of coal and boiler operatiopn operating mode and select the corresponding method of operation.In the time that igniting is bituminous coal with coal, can only drop into normal temperature oxygen or high-temperature oxygen and just can reach the object of stablizing coal dust firing, when W type boiler is when in normal course of operation, coal is anthracite, oil gun and high-temperature oxygen are all dropped into, reach best steady fuel efficiency fruit.Therefore, the applicability of this patent is very extensive, and flexible operation, and user can, according to the feature of self, select suitable operation mode.
On the basis of technique scheme, the present invention can also do following improvement.
Further, heater overflow valve and steam flow control valve are installed on described oxygen heater, described heater overflow valve is near the top of described oxygen heater, and described steam flow control valve is near the bottom of described oxygen heater.
Adopt the beneficial effect of above-mentioned further scheme to be, send into the existing steam of power plant in oxygen heater bottom by steam flow control valve, can the water in oxygen heater is heated to temperature required.
Further, heater water temperature measuring point is also installed on described oxygen heater.
Adopt the beneficial effect of above-mentioned further scheme to be, in actual heating process, can, according to the temperature indication of heater water temperature measuring point, utilize the existing steam of power plant that the water in oxygen heater is heated to temperature required, and by steam flow control valve, water temperature be regulated within the specific limits.
Further, described W type boiler bispin air duct burner automatic stable burning device also comprises oxygen channel metal hose and fuel passage metal hose, described oxygen channel is connected with described racemization stabilizer by described oxygen channel metal hose, and described fuel passage is connected with described racemization stabilizer by described fuel passage metal hose.
Adopt the beneficial effect of above-mentioned further scheme to be, racemization stabilizer still can move along burner axis direction, to adjust racemization effect.
Further, described W type boiler bispin air duct burner automatic stable burning device also comprises drive unit and breeze airflow racemization sheet, and described drive unit is connected with described drill autofeeder, for driving described drill autofeeder; Described breeze airflow racemization sheet is positioned at described cyclone cylinder burner, and is connected with the top of described racemization stabilizer.
Further, described drive unit is the one in cylinder or magnetic valve.
Further, high-pressure blast quick-closing valve and oxygen temperature measuring point are installed on described oxygen channel.
Further, on described fuel passage, fuel oil quick-closing valve is installed.
Further, a spout wall temperature measuring point is all installed on the two side of the bottom of described cyclone cylinder burner.
Adopt the beneficial effect of above-mentioned further scheme to be, at the both sides place of the spout of cyclone cylinder burner, spout wall temperature measuring point is installed, these two spout wall temperature measuring points can be monitored the wall temperature situation of cyclone cylinder burner in actual moving process timely, and measured temperature value and setting value are compared, when the burner wall surface temperature measuring when these two spout wall temperature measuring points exceedes setting value, to automatically turn down oxygen flow rate adjusting valve, in case overheating problem appears in burner; If the observed temperature of these two spout wall temperature measuring points, all lower than setting value, is opened large oxygen flow rate adjusting valve automatically, to improve the case of fire of coal dust, until this valve is reached to maximum.
Further, on the female pipe of described oxygen, oxygen flow rate adjusting valve and heater by-pass heat control valve are installed.
Adopt the beneficial effect of above-mentioned further scheme to be, temperature after oxygen heating can be adjusted automatically by heater by-pass heat control valve, in steady combustion process, if coal fire inspection scintillation exists all the time, automatically turn down heater by-pass heat control valve, increase the oxygen flow that enters oxygen heater, improve the temperature after oxygen heating with this, to reach the object of the steady fuel efficiency fruit of further improvement.
Further, described micro-oil gun is any one in mechanical oil gun, bubble oil gun or machinery+compressed air atomized oil gun.Described oxygen supplier is any one in oxygen spinning disk, oxygen direct current sheet or the oxygen supplier with outer enlarging-angle.
The operation principle of W type boiler bispin air duct burner automatic stable burning device of the present invention is as follows:
In the time that boiler needs steady combustion, from the oxygen of the female Guan Lai of oxygen first after oxygen heater heat temperature raising, enter in racemization stabilizer, flow to behind the bottom of racemization stabilizer, under the effect of oxygen supplier, there is eddy flow, fully mix with part coal dust, form localized hyperthermia's oxygen-rich coal dust air-flow, simultaneously, automatically open fuel oil quick-closing valve, fuel oil mixes with high temperature pure oxygen from the nozzle ejection of micro-oil gun, under the heat effect of radiation of burner hearth heat and high temperature pure oxygen, fuel oil takes fire, the thermal-flame forming directly heats oxygen-rich coal dust air-flow, coal dust moment is ignited, having realized the micro-oil of high temperature pure oxygen surely fires.
The present invention has utilized Automatic Control Theory, and coal fire inspection corresponding cyclone cylinder burner is interlocked with racemization stabilizer, has realized the object of moment automatic stable burning.When boiler is in running, while causing coal dust firing unstable due to a variety of causes, first there is scintillation in coal fire inspection, automatically open oxygen flow rate adjusting valve and fuel oil quick-closing valve, high-temperature oxygen and fuel oil enter rapidly in racemization stabilizer, nozzle by micro-oil gun and oxygen supplier enter the nozzle of cyclone cylinder burner, fuel oil is under the dual-heated effect of radiation of burner hearth heat and high-temperature oxygen, take fire, and under oxygen combustion-supporting, form high-temperature oxygen-enriched flame, by coal dust instantaneous ignition, reach steady combustion object.In the time that the phenomenon of coal dust firing shakiness disappears, automatically close oxygen flow rate adjusting valve and fuel oil quick-closing valve, steady combustion finishes.This principle will realize whole-process automatic steady combustion within the scope of full burner hearth, and do not need operations staff to carry out any operation and intervention, the required reaction time of artificial adjustment will be greatly reduced, realize Millisecond automatic switching oil and thrown oxygen, and reduce operations staff's manipulation strength, realized full burner hearth automatic stable burning.
In the time that boiler is surely fired, there are seven kinds of steady combustion operation modes:
(1) only drop into oil gun and high-pressure blast, do not drop into oxygen;
(2) only drop into normal temperature oxygen, do not drop into oil gun and high-pressure blast;
(3) only drop into high-temperature oxygen, do not drop into oil gun and high pressure cooling air;
(4) oil gun and normal temperature oxygen drop into simultaneously;
(5) oil gun and high-temperature oxygen drop into simultaneously;
(6) oil gun, high-temperature oxygen and high-pressure blast drop into simultaneously;
(7) oil gun, normal temperature oxygen and high-pressure blast drop into simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of W type boiler bispin air duct burner automatic stable burning device of the present invention;
In accompanying drawing, the list of parts of each label representative is as follows:
1, heater overflow valve, 2, oxygen heater, 3, high-pressure blast quick-closing valve, 4, oxygen temperature measuring point, 5, oxygen channel metal hose, 6, racemization stabilizer, 7, drill autofeeder, 8, drive unit, 9, fuel passage metal hose, 10, fuel oil quick-closing valve, 11, steam flow control valve, 12, oxygen flow rate adjusting valve, 13, the female pipe of oxygen, 14, heater by-pass heat control valve, 15, heater water temperature measuring point, 16, spout wall temperature measuring point, 17, micro-oil gun, 18, oxygen supplier, 19, breeze airflow racemization sheet, 20, cyclone cylinder burner, 21, oxygen channel, 22, fuel passage.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of W type boiler bispin air duct burner automatic stable burning device, as shown in Figure 1, comprise oxygen heater 2, the female pipe 13 of oxygen, oxygen channel 21, racemization stabilizer 6, fuel passage 22, cyclone cylinder burner 20, drill autofeeder 7, micro-oil gun 17 and oxygen supplier 18, the open top of described oxygen heater 2, described oxygen heater 2 is connected with the female pipe 13 of described oxygen, the female pipe 13 of described oxygen is connected with a side of described racemization stabilizer 6 by described oxygen channel 21, described fuel passage 22 is connected with the opposite side of described racemization stabilizer 6, the lower middle portion of described racemization stabilizer 6 is arranged in described cyclone cylinder burner 20, described drill autofeeder 7 is connected with the top of described racemization stabilizer 6, described oxygen channel 21 and fuel passage 22 are all near described drill autofeeder 7, described racemization stabilizer 6 is hollow bushing structure, the center of described racemization stabilizer 6 is provided with described micro-oil gun 17, bottom is provided with described oxygen supplier 18.
Heater overflow valve 1 and steam flow control valve 11 are installed on described oxygen heater 2, and described heater overflow valve 1 is near the top of described oxygen heater 2, and described steam flow control valve 11 is near the bottom of described oxygen heater 2.
Heater water temperature measuring point 15 is also installed on described oxygen heater 2.
Described W type boiler bispin air duct burner automatic stable burning device also comprises oxygen channel metal hose 5 and fuel passage metal hose 9, described oxygen channel 21 is connected with described racemization stabilizer 6 by described oxygen channel metal hose 5, and described fuel passage 22 is connected with described racemization stabilizer 6 by described fuel passage metal hose 9.
Described W type boiler bispin air duct burner automatic stable burning device also comprises drive unit 8 and breeze airflow racemization sheet 19, and described drive unit 8 is connected with described drill autofeeder 7, for driving described drill autofeeder 7; Described breeze airflow racemization sheet 19 is positioned at described cyclone cylinder burner 20, and is connected with the bottom of described racemization stabilizer 6.
Described drive unit 8 is the one in cylinder or magnetic valve.
High-pressure blast quick-closing valve 3 and oxygen temperature measuring point 4 are installed on described oxygen channel 21.
On described fuel passage 22, fuel oil quick-closing valve 10 is installed.
One spout wall temperature measuring point 16 is all installed on the two side of the bottom of described cyclone cylinder burner 20.
On the female pipe 13 of described oxygen, oxygen flow rate adjusting valve 12 and heater by-pass heat control valve are installed.
Workflow of the present invention is as follows:
In the time that the coal powder ignition in cyclone cylinder burner 20 exits is stablized not, automatically open fuel oil quick-closing valve 10 and oxygen flow rate adjusting valve 12; Fuel oil flow to the nozzle of micro-oil gun 17 from fuel passage 22, with the angle of flare ejection of 30 °～60 °; Simultaneously, pure oxygen enters oxygen heater 2 from the female pipe 13 of oxygen, after heat temperature raising, flow to the front end of racemization stabilizer 6, flow out in the mode of Rotational diffusion by oxygen spinning disk 18, part of oxygen is that the fuel oil that sprays of micro-oil gun 17 is combustion-supporting, and another part oxygen mixes with coal dust, form oxygen-rich coal dust air-flow, under the effect of micro-oil gun 17 flames, moment catches fire, and reaches steady combustion object.
W type boiler bispin air duct burner automatic stable burning device of the present invention integrated use high pressure oil film crushing technology, pure oxygen combustion-supporting technology, Dual-Phrase Distribution of Gas olid local turbulence hybrid technology, oxygen heating technology, racemization technology, automatic Push Technology etc., at micro-oil gun " high-temperature that gone out interruption-forming, hyperoxia amount, high rigidity " pure oxygen oil flame, and form " high-temperature in the subrange of burner nozzle, high concentration, hyperoxia amount " pulverized coal flame, and creationary oxygen regulating valve and the burner wall surface temperature measuring point interlocked control of having used, automatically regulate the principle of flow of oxygen, guarantee the combustion-supporting effect of oxygen to perform to best time, there will not be the phenomenon of burner wall surface temperature overtemperature.Create very the advantage that is applicable to W stove cyclone cylinder burner coal powder ignition, available saving the type boiler is used oil mass in the time of steady combustion.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a W type boiler bispin air duct burner automatic stable burning device, it is characterized in that: comprise oxygen heater, the female pipe of oxygen, oxygen channel, racemization stabilizer, fuel passage, cyclone cylinder burner, drill autofeeder, micro-oil gun and oxygen supplier, the open top of described oxygen heater, described oxygen heater is connected with the female pipe of described oxygen, the female pipe of described oxygen is connected with a side of described racemization stabilizer by described oxygen channel, described fuel passage is connected with the opposite side of described racemization stabilizer, the lower middle portion of described racemization stabilizer is arranged in described cyclone cylinder burner, described drill autofeeder is connected with the top of described racemization stabilizer, described oxygen channel and fuel passage are all near described drill autofeeder, described racemization stabilizer is hollow bushing structure, the center of described racemization stabilizer is provided with described micro-oil gun, bottom is provided with described oxygen supplier.
2. W type boiler bispin air duct burner automatic stable burning device according to claim 1, it is characterized in that: heater overflow valve and steam flow control valve are installed on described oxygen heater, described heater overflow valve is near the top of described oxygen heater, and described steam flow control valve is near the bottom of described oxygen heater.
3. W type boiler bispin air duct burner automatic stable burning device according to claim 2, is characterized in that: heater water temperature measuring point is also installed on described oxygen heater.
4. W type boiler bispin air duct burner automatic stable burning device according to claim 1, it is characterized in that: described W type boiler bispin air duct burner automatic stable burning device also comprises oxygen channel metal hose and fuel passage metal hose, described oxygen channel is connected with described racemization stabilizer by described oxygen channel metal hose, and described fuel passage is connected with described racemization stabilizer by described fuel passage metal hose.
5. W type boiler bispin air duct burner automatic stable burning device according to claim 1, it is characterized in that: described W type boiler bispin air duct burner automatic stable burning device also comprises drive unit and breeze airflow racemization sheet, described drive unit is connected with described drill autofeeder, for driving described drill autofeeder; Described breeze airflow racemization sheet is positioned at described cyclone cylinder burner, and is connected with the top of described racemization stabilizer.
6. W type boiler bispin air duct burner automatic stable burning device according to claim 5, is characterized in that: described drive unit is the one in cylinder or magnetic valve.
7. W type boiler bispin air duct burner automatic stable burning device according to claim 1, is characterized in that: high-pressure blast quick-closing valve and oxygen temperature measuring point are installed on described oxygen channel; Fuel oil quick-closing valve is installed on described fuel passage; One spout wall temperature measuring point is all installed on the two side of the bottom of described cyclone cylinder burner.
8. W type boiler bispin air duct burner automatic stable burning device according to claim 1, is characterized in that: on the female pipe of described oxygen, oxygen flow rate adjusting valve and heater by-pass heat control valve are installed.
9. according to the W type boiler bispin air duct burner automatic stable burning device described in claim 1 to 8 any one, it is characterized in that: described micro-oil gun is any one in mechanical oil gun, bubble oil gun or machinery+compressed air atomized oil gun.
10. according to the W type boiler bispin air duct burner automatic stable burning device described in claim 1 to 8 any one, it is characterized in that: described oxygen supplier is any one in oxygen spinning disk, oxygen direct current sheet or the oxygen supplier with outer enlarging-angle.
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| CN201410112879.9A CN103868060B (en) | 2014-03-24 | 2014-03-24 | A kind of W type boiler bispin air duct burner automatic stable burning device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106016356A (en) * | 2016-05-24 | 2016-10-12 | 中国大唐集团科学技术研究院有限公司西北分公司 | Ignition method of W-shaped boiler |
| CN109084296A (en) * | 2017-06-13 | 2018-12-25 | 山西昌德大成科技有限公司 | The built-in oxygen rifle of boiler using brown coal burner surely fires system |
| CN109931598A (en) * | 2019-03-11 | 2019-06-25 | 哈尔滨工业大学 | A kind of W flame boiler being disposed with turbulent burner and DC burner |
| CN111023083A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W flame boiler adopting cyclone burner |
| CN111023084A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W flame boiler of double-cyclone-cylinder thick and thin pulverized coal separating type burner |
| CN111023081A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W-flame boiler using gap type burner |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016356A (en) * | 2016-05-24 | 2016-10-12 | 中国大唐集团科学技术研究院有限公司西北分公司 | Ignition method of W-shaped boiler |
| CN106016356B (en) * | 2016-05-24 | 2018-05-18 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of W types ignition of the boiler method |
| CN109084296A (en) * | 2017-06-13 | 2018-12-25 | 山西昌德大成科技有限公司 | The built-in oxygen rifle of boiler using brown coal burner surely fires system |
| CN109931598A (en) * | 2019-03-11 | 2019-06-25 | 哈尔滨工业大学 | A kind of W flame boiler being disposed with turbulent burner and DC burner |
| CN111023083A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W flame boiler adopting cyclone burner |
| CN111023084A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W flame boiler of double-cyclone-cylinder thick and thin pulverized coal separating type burner |
| CN111023081A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学 | W-flame boiler using gap type burner |
| CN111023081B (en) * | 2019-12-19 | 2020-10-27 | 哈尔滨工业大学 | W-flame boiler using gap type burner |
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|---|---|
| CN103868060B (en) | 2016-08-24 |
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