CN201526965U - Internal combustion blast-furnace gas power generation boiler dedicated burner with rectangular cone fluidic device - Google Patents
Internal combustion blast-furnace gas power generation boiler dedicated burner with rectangular cone fluidic device Download PDFInfo
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- CN201526965U CN201526965U CN2009203141222U CN200920314122U CN201526965U CN 201526965 U CN201526965 U CN 201526965U CN 2009203141222 U CN2009203141222 U CN 2009203141222U CN 200920314122 U CN200920314122 U CN 200920314122U CN 201526965 U CN201526965 U CN 201526965U
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- fluidic device
- furnace gas
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Abstract
The utility model relates to an internal combustion blast-furnace gas power generation boiler dedicated burner with a rectangular cone fluidic device. The dedicated burner comprises a rectangular nozzle installed at one end of a rectangular combustion pipe, wherein the rectangular nozzle is internally provided with the rectangular cone fluidic device matched with the nozzle; the position of the rectangular combustion pipe, relative to the rectangular cone fluidic device, is provided with a rectangular gap and a movable baffle device used for adjusting the inlet air quantity of the rectangular gap; the outside of the rectangular combustion pipe is provided with a cooling device; and the rectangular combustion pipe is provided with an igniter burner. By adopting a method of internal combustion, the dedicated burner causes flame to begin combusting inside the burner, improves the temperature of pipe wall, leads to a high-temperature environment, speeds up the chemical reaction of fuel and also solves the problems of fire cutoff and extinguishing. The benefits lie in that by the detection in a test, the content of carbon monoxide in waste gas is below 5PPM, thus not polluting the environment, the dedicated burner is a relatively ideal blast furnace gas burner.
Description
Technical field
The utility model relates to a kind of burner noz(zle), relates in particular to a kind of internal combustion type blast furnace gas electricity generation boiler special nozzle with the rectangular cone fluidic device.
Background technology
Along with the fast development of national economy, the blast furnace gas that produces in the blast furnace production process of iron and steel enterprise becomes a kind of considerable combustion gas resource at present.The characteristics of this combustion gas are that calorific value is very low, and its main combustible component carbon monoxide only accounts for 20% of its cumulative volume, are minimum a kind of in the industrial gas.But its output is very big and can not store, if can not make full use of, diffuse in the atmosphere and not only can cause severe energy waste, and can serious environment pollution.The most of iron and steel enterprises of China all have been equipped with electricity generation boiler at present, unnecessary blast furnace gas can be used for generating electricity.But electricity generation boiler burner in the market, for the burning high heating value gas designs, effect is fine when burning coke-stove gas of high heating value or coal gas of converter, but has occurred being difficult to light when the pure blast furnace gas of lower heat of combustion, easily takes off fire, extinguishes phenomenon.More seriously, form extremely dangerous explosive atmosphere, facts have proved that the explosive atmosphere of this kind can cause serious personal injury and equipment property loss owing to take off fire, extinguish a large amount of coal gas is accumulated in the burner hearth.Therefore, seek a kind of good method, create a cover and help the clean-burning necessary condition of blast furnace gas, blast furnace gas is produced and coke-stove gas and the same combustion efficiency of coal gas of converter, the electricity generation boiler burner of safety, environmental protection, efficient energy-saving is a major issue of benefiting the nation and the people.
For a long time, the method that blast furnace gas rationally utilizes is constantly being explored always by China, but traditional burner is because its unreasonable structure, and coal gas just mixes and undercompounding after leaving burner with combustion air, has influenced the chemical reaction of fuel and air.Therefore, the phenomenon of be easy to generate cutoff, extinguishing, and light difficulty.Therefore, also do not find up to now and a kind ofly can under the normal temperature state, light easily, cutoff do not occur, extinguish the effective ways and the device of phenomenon.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of have rational in infrastructure, easy to use, can make blast furnace gas under the normal temperature state, light and keep the internal combustion type blast furnace gas electricity generation boiler special nozzle of the band rectangular cone fluidic device of normal combustion.
For achieving the above object, the utility model adopts following technical proposals:
A kind of internal combustion type blast furnace gas electricity generation boiler special nozzle with the rectangular cone fluidic device, it comprises the rectangular nozzle that is installed in rectangle combustion tube one end, the rectangular cone fluidic device that matches with it is installed in described rectangular nozzle, rectangle combustion tube and this rectangular cone fluidic device opposite position are provided with rectangular aperture and the sideboard device in order to adjusting rectangular aperture intake, rectangle combustion tube outside is provided with cooling device, and the rectangle combustion tube is provided with an igniter burner.
Described rectangular cone fluidic device comprises a rectangular cone path transfer valve, and rectangular cone path transfer valve is connected with the path transfer valve operating rod, and the top of path transfer valve operating rod is provided with the path transfer valve hand wheel.
The described rectangular nozzle other end is connected with blast furnace gas pipeline.
Described rectangle combustion tube length is greater than the length that is positioned at rectangle combustion tube rectangle nozzle segment.
Described sideboard device comprises deep bead, deep bead control stick and deep bead handwheel, deep bead is arranged at the end of the rectangular aperture of rectangle combustion tube and rectangular cone fluidic device opposite position, deep bead is connected with deep bead control stick one end, and the deep bead control stick other end is connected with the deep bead handwheel.
Described cooling device comprises air duct and rectangle burner shell, and described air duct is connected with the rectangular aperture of rectangle burner shell and rectangle combustion tube and rectangular cone fluidic device opposite position respectively; Described rectangle burner shell is located at the outside of rectangle combustion tube, and is provided with the gap between rectangle burner shell and the rectangle combustion tube outer wall and forms a rectangular channel.
Described rectangle combustion tube inner radial multilayer is laid with steady combustion steel rod.
The utility model adopts the method for internal combustion, flame is just taken fire in burner inside, make tube wall and the rising of steady combustion steel rod temperature, cause a kind of suitable clean-burning hot environment, the chemical reaction of fuel is accelerated, also problem with regard to having solved cutoff, having extinguished.
In addition, the rectangular cone fluidic device, changed the flow direction of coal gas, make the angle directive rectangle combustion tube tube wall of coal gas by the cone valve regulation, form the taper air curtain of a sealing, combustion air will pass through in burner, certainly will pass this layer air curtain, therefore, can realize fully mixing of coal gas and combustion air, accelerate the burning velocity of coal gas, make coal gas burning immediately after meeting with combustion air, improve the temperature of rectangle combustion tube with this, also just help the abundant burning of coal gas more, under this interactional condition, can make the combustion rate of coal gas reach 99%.This burner also has been equipped with a Chang Minghuo igniter burner, this igniter burner applies on May 24th, 2006 that with the applicant the special nozzle structure of blast furnace gas of " the special burner of internal combustion type blast furnace gas of band rectangular cone fluidic device " utility model patent project is consistent, make this electricity generation boiler burner remain the igniting burning things which may cause a fire disaster that a Chang Ming does not extinguish, improved the security and the reliability of electricity generation boiler with this.
Owing in the middle of industrial processes, can often run into maintenance of equipment and cause blowing out, resume production and to light a fire at normal temperatures when restarting electricity generation boiler.Because blast furnace gas calorific value is lower, the active combustion composition is very thin, and experience is told us, and when blast furnace gas was lighted a fire at low temperatures, the burning velocity of coal gas was very slow, and its phenomenon is an ignition difficulties, also very easily extinguishes simultaneously.Careless slightly, because of gathering too much, explosive atmosphere has an accident probably.
Therefore, for solving this difficult problem, this device has designed coal gas path transfer valve, can pass through handwheel, path transfer control stick and move the inlet of restriction coal gas with Cone valve is forward and backward.Utilize the regulating action of deep bead simultaneously, the inlet of restriction combustion air.The minimizing of coal gas and combustion air consumption makes the flow velocity of whole rectangle combustion tube reduce, and flame just can smooth combustion in the rectangle combustion tube.Though this moment, the power of this burner was very low, the flame temperature that burner combustion produces is not low, generally all more than 800 ℃, can satisfy the technological requirement of boiling stove and preboiler fully.Under continuous burned flame effect, fire box temperature can improve rapidly, when fire box temperature is brought up to 600 ℃, combustion air preheater in the electricity generation boiler waste gas flue can be preheating to combustion air about 200 ℃, this temperature can be accelerated the burning velocity of coal gas greatly, flame combustion is basicly stable, taking off fiery phenomenon eliminates fully, can decontrol coal gas path transfer valve this moment to strengthen the gas supply amount, the blow rate required that improves combustion fan simultaneously further strengthens burner power, impel the interior temperature of stove further to improve, generate electricity to produce enough steams.
The beneficial effects of the utility model are: after testing, the carbon monoxide content in the waste gas is below the 5PPM.Surrounding environment is not produced pollution, is a kind of comparatively desirable blast furnace gas burner.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the right view of Fig. 1;
Wherein, 1. blast furnace gas pipeline, 2. rectangular nozzle, 3. rectangle combustion tube, 4. rectangular cone path transfer valve, 5. path transfer valve operating rod, 6. the path transfer valve hand wheel 7. surely fires steel rod, 8. deep bead, 9. deep bead control stick, 10. deep bead handwheel, 11. combustion air air inlets, 12. burner shells, 13. air duct, 14. igniter burners;
Be the mobile direction of blast furnace gas,
Be the mobile direction of combustion air,
Be the flame combustion injection direction.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1,2, blast furnace gas pipeline 1 is connected with an end of rectangular nozzle 2, and the other end of rectangular nozzle 2 then places an end of rectangle combustion tube 3, and its other end is the outlet of flame.The rectangular nozzle 2 built-in rectangular cone fluidic devices that match with its shape, this rectangular cone fluidic device comprises a rectangular cone path transfer valve 4, it is connected with path transfer valve operating rod 5, the top of path transfer valve operating rod 5 connects path transfer valve hand wheel 6, by rotating path transfer valve hand wheel 6, can mobile forward or backward rectangular cone path transfer valve 4, thus control makes it can keep the taper air curtain of a comparatively desirable sealing by the air-flow of rectangular nozzle 2 ejections.Be provided with steady combustion steel rod 7 in the rectangle combustion tube 3, surely fire steel rod 7, be used for storing the heat of thermal-flame and combustion gas is further stirred by radially multilayer is uniform.
For guaranteeing fully mixing of combustion gas and combustion air, at the be provided with deep bead 8 of rectangle combustion tube 3 with rectangular nozzle 2 correspondence positions, it is connected with deep bead control stick 9, and deep bead control stick 9 tops connect deep bead handwheel 10, and 2 of rectangle combustion tube 3 and rectangular nozzles leave the slit.By rotating deep bead handwheel 10, mobile forward or backward deep bead 8, thus reduce or open big combustion air air inlet 11, also changed the direction of air-flow operation, stir to produce bigger turbulent flow, realize fully mixing of combustion gas and combustion air.Combustion air enters rectangle combustion tube 3 by the slit between deep bead 8 and rectangle combustion tube 3 ends and participates in burning, like this by controlling the speed that sprays into of combustion gas, promptly control the slit of 3 of rectangular cone path transfer valve 4 and control deep bead 8 and rectangle combustion tubes, can reach the purpose that flame is burnt in rectangle combustion tube 3 inside, burned flame makes rectangle combustion tube 3 tube walls and steady combustion steel rod 7 heat up rapidly, in rectangle combustion tube 3, build a hot environment of accelerating chemical reaction, thereby guaranteed the adequacy of burning.
Rectangle combustion tube 3 and burner shell 12 maintain the annular space of certain distance, to under the pressure effect of air blast, pass from the unnecessary combustion air of air duct 13 from annular space, rectangle combustion tube 3 outer walls are cooled off, also heated simultaneously by the high temperature outer wall of rectangle combustion tube 3.Heated combustion air enters in the stove by annular space, with the burning of meeting of the coal gas of surplus, has reached the purpose of secondary air feed.Burner shell 12 is a rectangle.
In addition, a bit burn mouth 14 in the setting of the middle part of rectangle combustion tube 3, this igniter burner 14 applies on May 24th, 2006 that with the applicant the special nozzle structure of blast furnace gas of " the special burner of internal combustion type blast furnace gas of band rectangular cone fluidic device " utility model patent project is consistent, make this electricity generation boiler burner remain the igniting burning things which may cause a fire disaster that a Chang Ming does not extinguish, improved the security and the reliability of electricity generation boiler with this.
Claims (7)
1. internal combustion type blast furnace gas electricity generation boiler special nozzle with the rectangular cone fluidic device, it comprises the rectangular nozzle that is installed in rectangle combustion tube one end, the rectangular cone fluidic device that matches with it is installed in described rectangular nozzle, it is characterized in that: rectangle combustion tube and this rectangular cone fluidic device opposite position are provided with rectangular aperture and the sideboard device in order to adjusting rectangular aperture intake, rectangle combustion tube outside is provided with cooling device, and the rectangle combustion tube is provided with an igniter burner.
2. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1, it is characterized in that: described rectangular cone fluidic device comprises a rectangular cone path transfer valve, rectangular cone path transfer valve is connected with the path transfer valve operating rod, and the top of path transfer valve operating rod is provided with the path transfer valve hand wheel.
3. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1, it is characterized in that: the described rectangular nozzle other end is connected with blast furnace gas pipeline.
4. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1 is characterized in that: described rectangle combustion tube length is greater than the length that is positioned at rectangle combustion tube rectangle nozzle segment.
5. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1, it is characterized in that: described sideboard device comprises deep bead, deep bead control stick and deep bead handwheel, deep bead is arranged at the end of the rectangular aperture of rectangle combustion tube and rectangular cone fluidic device opposite position, deep bead is connected with deep bead control stick one end, and the deep bead control stick other end is connected with the deep bead handwheel.
6. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1, it is characterized in that: described cooling device comprises air duct and rectangle burner shell, and described air duct is connected with the rectangular aperture of rectangle burner shell and rectangle combustion tube and rectangular cone fluidic device opposite position respectively; Described rectangle burner shell is located at the outside of rectangle combustion tube, and is provided with the gap between rectangle burner shell and the rectangle combustion tube outer wall and forms a rectangular channel.
7. the internal combustion type blast furnace gas electricity generation boiler special nozzle of band rectangular cone fluidic device according to claim 1 is characterized in that: described rectangle combustion tube inner radial multilayer is laid with steady combustion steel rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203141222U CN201526965U (en) | 2009-11-05 | 2009-11-05 | Internal combustion blast-furnace gas power generation boiler dedicated burner with rectangular cone fluidic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203141222U CN201526965U (en) | 2009-11-05 | 2009-11-05 | Internal combustion blast-furnace gas power generation boiler dedicated burner with rectangular cone fluidic device |
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| Publication Number | Publication Date |
|---|---|
| CN201526965U true CN201526965U (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203141222U Expired - Fee Related CN201526965U (en) | 2009-11-05 | 2009-11-05 | Internal combustion blast-furnace gas power generation boiler dedicated burner with rectangular cone fluidic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985127A (en) * | 2022-07-15 | 2022-09-02 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for changing jet flow shape |
-
2009
- 2009-11-05 CN CN2009203141222U patent/CN201526965U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985127A (en) * | 2022-07-15 | 2022-09-02 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for changing jet flow shape |
| CN114985127B (en) * | 2022-07-15 | 2022-11-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for changing jet flow shape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20131105 |