CN2856727Y - Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber - Google Patents
Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber Download PDFInfo
- Publication number
- CN2856727Y CN2856727Y CN 200520074600 CN200520074600U CN2856727Y CN 2856727 Y CN2856727 Y CN 2856727Y CN 200520074600 CN200520074600 CN 200520074600 CN 200520074600 U CN200520074600 U CN 200520074600U CN 2856727 Y CN2856727 Y CN 2856727Y
- Authority
- CN
- China
- Prior art keywords
- slurry
- water
- coal
- oil
- air
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a conversion auto-controlled coal water slurry and oil fired dual purpose boiler with built-in chamber, including a boiler body and a burner connected with the front wall of the boiler body, the front of furnace of boiler body is built-in prechamber combined with the front wall of boiler body; the burner with fully automatic separated burner for burning coal water slurry and oil includes a casing, a lance assembly disposed in the casing, a lance executed assembly and control valve group disposed out of the casing and connected with lance assembly, an air door mechanism connected to the lower part of rear end of the casing and connected with inner cavity of the casing, an oil pump and an oil pump motor connected with oil pump which is connected to lance assembly. The utility model is capable of quick ignition, stable burning, implementing auto-control from ignition to ceasefire and the whole process for automatic adjusting load, burning either coal water slurry or oil.
Description
Technical field:
The utility model relates to a kind of boiler of Automatic Control, be specifically related to a kind of frequency conversion and control metabolic water coal slurry, oily boiler for dual purpose automatically, fluidised coal derived fuel-water-coal-slurry or oil that main burning is made by about 67% coal dust, about 32% water and 1% additive with built-in precombustion chamber.
Background technology:
At present, oil price is high on the international market, making many enterprises and institutions face fuel price is doubled and redoubled, the situation that financial burden increases, simultaneously, in recent years, environmental problem has been related to economic sustainable development, some big or middle cities are to alleviate the pollution of Industrial Boiler to atmosphere, and the use of restriction coal-burning boiler changes fuel oil (gas) into by fire coal.Change fuel oil (gas) into by fire coal, can alleviate atmosphere pollution undoubtedly, and can improve boiler thermal output.But, because oil (gas) price is too high, having increased the boiler operatiopn expense greatly, enterprise is difficult to bear; To heating boiler, heating cost will increase several times, and common citizen is with unable acceptance.
Therefore, for reducing boiler operatiopn expense and minimizing pollution to environment, must greatly develop with the coal high-efficiency clean utilization is the clean coal technology of aim, in recent years, the pulping technique of water-coal-slurry, additive technology, pulping equipment and saving transportation technique, special-purpose combustion apparatus and engineering aspect have all obtained important breakthrough.Water coal slurry burner is all comparatively ripe aspect burning and atomizing, but does not carry out the integrated design of dedicated water fluid-fired boiler, is only limited to boiler improvement, lacks the integrality of burning control, and the control level is low.Aspect the exploitation of dedicated water coal slurry Industrial Boiler, be in the ground zero stage at present, minority is used the Industrial Boiler of water-coal-slurry, and mainly there is following technical problem in all non-boiler enterprise exploitation by specialty:
1, burner and boiler design disconnect mutually, often cause mutual matching poor, and burner belongs to easy structure; can only combusting coal water slurry can not fuel oil; be hand from the truce overall process of lighting a fire, dip in oil drop combustion light oil with the cotton yarn torch, plain type light oil jet pipe is valve switch by hand.
3, air distribution also closes by hand and opens, and air quantity senior general fire is blown out, and deficiency in draught is with over-emitting black exhaust; fire is blown out the back spray bar can not close rapidly, and the light oil that is sprayed onto in the burner hearth evaporates into oil gas immediately, when lighting a fire once more; detonation takes place, and no flame-out protection device does not have automatic forward and backward purging.
4, precombustion chamber designs unreasonable or separates with body of heater, causes combustion instability, coking and thermal loss etc.
5, the coal-water slurry nozzle sprayer body adopts overall structure, does not set heat-resistant and wear-resistant material in the spray orifice, causes shower nozzle heat-resistant antifriction and rigidity relatively poor; Water-coal-slurry is directly clashed into the sprayer body inwall, needs the integral replacing shower nozzle, makes that the service life of water-coal-slurry shower nozzle is short.
6, burner and Automatic Control of Boiler degree are low.
7, burner fuel oil and combusting coal water slurry can't be realized automaticallying switch, and oil gun need be pulled out during burning, and burner is made coarse, and the control level is low.
8, in addition, the burning load of the burner that adopts can not be with regulating automatically with the load variations of heat, occur under the various unusual and overrun condition at the equipment of configuration burner, hand-operated valve can not cut out rapidly, overrun condition such as its abnormal conditions and over-temp and over-pressure can not be got rid of rapidly, particularly the hot system of the usefulness that temperature requirement is arranged is had a strong impact on generation and cause the generation of accident, gently then damage main equipment and auxiliary equipment, the heavy then accident that causes casualties.
Summary of the invention:
First purpose of the present utility model is to overcome above-mentioned deficiency, but but provides a kind of and can catch fire fast, smooth combustion, ceases fire from lighting a fire to and the automatic ratio of loading regulates that overall process all can realize automatic control, not only metabolic water coal slurry, oily boiler for dual purpose were controlled in the frequency conversion with built-in precombustion chamber of combusting coal water slurry but also fuel oil automatically.
First purpose of the present utility model is achieved in that a kind of frequency conversion with built-in precombustion chamber controls metabolic water coal slurry, oily boiler for dual purpose automatically, comprise boiler body and burner, burner is connected with the front wall of boiler body, it is characterized in that: described boiler body) furnace front is built-in with precombustion chamber, and the front wall of precombustion chamber and boiler body is made one; Described burner adopts automatic and separated combusting coal water slurry, oily dual burner, it comprises: casing, spray gun assembly, spray gun execution unit and control valve group, air door mechanism, Oil pump electrical machinery and oil pump, spray gun assembly places in the casing, spray gun execution unit and control valve group place outside the casing, be connected with spray gun assembly and communicate, air door mechanism is connected in the casing rear end bottom, is connected with chassis cavity, Oil pump electrical machinery links to each other with oil pump, and oil pump is connected with spray gun assembly.
The spray gun assembly of said burner comprises slurry rifle, oil gun, spray gun seat, spray gun seat center bearing bracket and ignitor, slurry rifle and oil gun are placed through in the spray gun seat, the spray gun seat is placed through in the spray gun seat center bearing bracket, and ignitor places the oil gun side, and spray gun seat center bearing bracket is fixedlyed connected with casing inner wall.
It is pneumatic or electronic or hydraulic operated valve group, atomizing air or steam road are pneumatic or electronic or hydraulic operated valve, electronic or pneumatic or the oil gun execution unit that surges, flow control valve and electronics pilot valve group that the spray gun execution unit of said burner and control valve group comprise that the road is swept in slurry and water, air-blowing, and pneumatic or the electronic or hydraulic operated valve group in road and atomizing air are swept in slurry and water, air-blowing or the steam road is pneumatic or electronic or the hydraulic operated valve outlet is connected with atomizing air or steam inlet with water-coal-slurry, water-coal-slurry flushing water and the purge gas inlet of slurry rifle respectively and communicates; Electronic or the pneumatic or oil gun execution unit that surges is connected with oil gun, and the switch of oil gun is controlled.Oil pump is connected with the oil gun import, and the oil gun outlet is connected with flow control valve; It is pneumatic or electronic or hydraulic operated valve group, atomizing air or steam road are pneumatic or electronic or hydraulic operated valve and electronic or the pneumatic or oil gun execution unit that surges all are electrically connected with electric-control system by electronics pilot valve group that the road is swept in slurry and water, air-blowing, can realize the control of electric-control system or hydraulic operated valve electronic or pneumatic to each.
The water-coal-slurry spray gun of said burner is in order to combusting coal water slurry, and oily spray gun is in order to fuel oil, and the water-coal-slurry spray gun all links to each other with the control valve group with oily spray gun.Can carry out automatic switch to oil gun, slurry rifle, atomizing medium.Utilize ignition transformer and fire rod to realize automatic light oil igniting, the fuel oil large and small fire is regulated, and slurry oil mixes combustion, separately the Load Regulation of combusting coal water slurry and combusting coal water slurry.Cease fire from lighting a fire to and the Load Regulation overall process is self-action.
The utility model second purpose is to overcome above-mentioned deficiency, provide a kind of burner air distribution and distributive value, whitewashing amount adopt control automatically, burning load can with hot load variations self-regulating security reliability good with the automatic control metabolic water coal slurry of built-in precombustion chamber, oily boiler for dual purpose.
Second purpose of the present utility model is achieved in that the air door mechanism of described burner comprises that air inlet, air door, air door transmission mechanism, air door and oil mass regulate servomotor device and cam mechanism automatically, air inlet is connected in the casing rear end bottom, be connected with chassis cavity, air door places in the air inlet, air door and oil mass are regulated the servomotor device automatically and are linked to each other with air door and cam mechanism respectively, the transmission that directly links of air door transmission mechanism and axle of the air door, the cam mechanism transmission that contacts with flow control valve.
The light oil road is according to load condition, send actuating signal by air door and oil mass being regulated the servomotor device automatically with the ratio adjusting apparatus on the hot equipment, damper air distribution amount and drive cam mechanism rotate, the recirculating oil quantity that changes flow control valve is regulated the distributive value of oil gun, carries out full scale and regulates burning.The water-coal-slurry road is according to load condition, sends actuating signal by with the ratio adjusting apparatus on the hot equipment air door and oil mass being regulated the servomotor device automatically, the air distribution amount of damper, and carry out frequency conversion type synchronously and regulate stock volume, carry out full scale and regulate burning.Can be to reach burning load with self-regulating purpose with the load variations of heat.
The 3rd purpose of the present utility model is to overcome above-mentioned deficiency, provide process burning that a kind of burner can fully atomize with the automatic control metabolic water coal slurry of built-in precombustion chamber, oily boiler for dual purpose.
The 3rd purpose of the present utility model is achieved in that at said burner casing front end and connects steady flame tube, steady built-in flame regulator of flame tube and atomizing disk, and atomizing disk is connected in the spray gun assembly front end.
Adopt atomizing disk, flame regulator and steady flame tube, make oil, water-coal-slurry fully and air mix, flame regulator can be regulated the length of flame, reaches completing combustion and makes the length of flame and diameter reach desired state.
The utility model the 4th purpose is to overcome above-mentioned deficiency, provides a kind of burner maintenance, repair to change easily with the automatic control metabolic water coal slurry of built-in precombustion chamber, oily boiler for dual purpose.
The 4th purpose of the present utility model is achieved in that the slurry rifle of said burner and oil gun rear end is connected on the spray gun fixed head, it is pneumatic or electronic or hydraulic operated valve group, atomizing air or steam road are pneumatic or electronic or hydraulic operated valve also is connected on the spray gun fixed head that the road is swept in slurry and water, air-blowing, and the spray gun fixed head is connected in casing rear end.Like this under the prerequisite that casing is not dismantled, not only can separately but also can in casing, shift out whole (containing center bearing bracket, atomizing disk, spray gun holder etc.), so that inner body is checked, maintenance, repair are changed.
The 5th purpose of the present utility model is to overcome above-mentioned deficiency, provide a kind of burner water-coal-slurry shower nozzle long service life with the automatic control metabolic water coal slurry of built-in precombustion chamber, oily boiler for dual purpose.
The 5th purpose of the present utility model is achieved in that the shower nozzle of the water-coal-slurry spray gun of described burner adopts combined porous structure, its sprayer body head periphery offers a plurality of gun holes, be inlaid with earthenware in the gun hole, can realize the heat-resistant antifriction and the rigidity requirement of water-coal-slurry shower nozzle.The wear-resisting flat head screw of bump is equipped with in the centre, clashes into wear-resisting flat head screw afterbody tack and places in the sprayer body cavity, is used to compress earthenware and the columnar water coal slurry is clashed into into point-like and be convenient to fully mix with atomizing medium.This clashes into wear-resisting flat head screw and earthenware is detachably changed, and can avoid the integral replacing shower nozzle like this, has prolonged the service life of water-coal-slurry shower nozzle greatly.
The 6th purpose of the present utility model is to overcome above-mentioned deficiency, provide a kind of burner can carry out blowout protection with the automatic control metabolic water coal slurry of built-in precombustion chamber, oily boiler for dual purpose.
The 6th purpose of the present utility model is achieved in that the position perforate that can measure light in the front portion of the casing of burner installs a photosensitive tube; do not detect the light time at photosensitive tube; alarm signal must not be opened and send to the whole lockings of burner function element, to reach the purpose of safeguard protection.
In sum, the utility model boiler has light oil, water-coal-slurry dual-purpose function.In functions such as the light oil igniting of when operation, combustion-supporting, cool water mixture burnings.Undesired or when overhauling in CWS system, can use light oil.The burner that adopts is safe and reliable to operation, stable, and fault rate is low.Major function has the preceding prepurge of igniting, eliminates the combustible that may accumulate in the burner hearth, and detonation is accidents caused when preventing to light a fire; The auto-programming igniter prevents maloperation; Flame detects automatically, and the abnormal misfire protection prevents abnormal misfire, and the loss of ignition protection prevents from not fire oil spout; Automatic little kerosene igniting, the two sections big fire coal slurry that ignites; Reaching the design temperature coal slurry catches fire and stops big fire, little fire; Air output can be regulated; When breaking down or reach design temperature and normal blowing out, can utilize the atomizing space G﹠W to wash, purge the water-coal-slurry pipe-line system of burner part repeatedly; Coal-water slurry nozzle adopts special ceramic material, its life-span is more than 3000 hours, simultaneously, according to the combustion characteristics integrated setting of water-coal-slurry built-in precombustion chamber, guaranteed that water-coal-slurry is caught fire fast, smooth combustion, particle burn, noncoking, and realize that burning and load frequency conversion control automatically.
The utility model boiler has burner and boiler body carries out integrated design, by the burner of control valve group, integrated design and the built-in precombustion chamber of setting, make this boiler be fit to the coal water slurry fuel burning, guarantee that water-coal-slurry is caught fire fast, smooth combustion, particle burn, noncoking, and realize that burning and load frequency conversion control automatically.The utility model is that water-coal-slurry utilization and extention on Industrial Boiler has been opened up wide prospect, has solved technical problems such as water-coal-slurry Industrial Boiler ignition difficulties, combustion instability, burner hearth coking, automatic control level be low.
This boiler has good Load Regulation function, and load can be regulated arbitrarily between 50%-100%, and makes water-coal-slurry, air proportioning reach the ideal burning ratio by variable frequency adjustment, and it goes for the normal smooth combustion of water-coal-slurry.
The utility model also has following characteristics:
1, independent of formula for burning with the blower fan genus, carry out flange by airduct and burner air inlet and be connected.Its air distribution can be suitable for natural wind and provide or active hot blast through heat transmission equipment.Blower fan can place in the subsidiary engine room, reduces noise in the boiler room.Blower motor also adopts two kinds of frequency conversion and not frequency conversions;
2, oil circuit adopts independent oil pump feed, single spray gun, its distributive value is according to load condition, regulates the recirculating oil quantity that servomotor device driving cam means is regulated flow stream joint valve automatically by air door and oil mass, and the angle of driven in synchronism air door, can realize stepless full scale Load Regulation.The spray gun of oil gun is in closed condition when not working, in case come into operation, its electronic or pneumatic or surge oil gun execution unit and igniter are opened synchronously;
3, the appearance and modeling integraty is strong, and the function element configuration is complete, compact overall structure.
Description of drawings:
Fig. 1 is the utility model boiler face structural representation.
Fig. 2 is the left side view of Fig. 1.
Fig. 3 is a burner Facad structure schematic diagram of the present utility model.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the left side view of Fig. 3.
Fig. 6 is the spray gun assembly assembly drawing that burner water-coal-slurry spray gun of the present utility model, oily spray gun, ignitor and spray gun seat, spray gun seat support are formed.
Fig. 7 is the left side view of Fig. 6.
Fig. 8 is the combined water coal slurry nozzle structure schematic diagram of the utility model burner.
Fig. 9 is the positive schematic diagram of assembling of the single control valve group pneumatic or electronic or hydraulic operated valve of the employing of the utility model burner.
Figure 10 sweeps pneumatic or the electronic or hydraulic operated valve group in road for slurry among Fig. 9 and water, air-blowing and partly assembles vertical view.
Figure 11 sweeps pneumatic or the electronic or hydraulic operated valve group in road for slurry among Fig. 9 and water, air-blowing and partly assembles A to view.
Figure 12 sweeps the road, the atomizing medium road is pneumatic or electronic or surges logical combination valve Facad structure schematic diagram for slurry and water, the air-blowing of the utility model burner.
Figure 13 is the A-A cut-away view of Figure 12.
Figure 14 is Figure 11 side view.
The specific embodiment:
As Fig. 1 ~ 2, the utility model is that metabolic water coal slurry, oily boiler for dual purpose are controlled in a kind of frequency conversion with built-in precombustion chamber automatically.Mainly form by boiler body 40, burner 37 and precombustion chamber 39.Burner 37 is connected with the front wall 38 of boiler body 40.
Precombustion chamber 39 and boiler body 40 integrated designs are built in the boiler furnace front portion, make one with the front wall 38 of boiler body 40.Reasonable Arrangement pin on water-cooling wall, adopt material refractory material 43 one-piece castings of high temperature resistant impermeabilisation to form, prevent stable burning room's coking fusion, prolong the service life of steady combustion section, precombustion chamber outlet both sides are provided with the firebreak 41 of certain width and height, make precombustion chamber form a semi-open space, make the precombustion chamber temperature can be raised to the catch fire temperature of requirement of water-coal-slurry fast, guaranteed that water-coal-slurry catches fire fast, simultaneously, during normal combustion, the precombustion chamber temperature is controlled in the suitable scope, guarantees water-coal-slurry smooth combustion, particle burns, and make the coal ash that burns not melt coking, precombustion chamber fall the ash drain by bottom ash dropping hopper 42.
As Fig. 3～5, described burner 37 adopts automatic and separated combusting coal water slurry, oily dual burner.Mainly by casing 3; spray gun assembly; oil; slurry rifle fixed head 2; spray gun execution unit and control valve group; oil pump 31; Oil pump electrical machinery 29; Oil pump electrical machinery fixed mount 23; air inlet 28; air door 30; air door transmission mechanism 26; air door and oil mass are regulated servomotor device 32 automatically; cam mechanism 21; steady flame tube 12; flame regulator 9; atomizing disk 13; preceding adpting flange 8; and blast protection switch 24; oil circuit instrument valve assembly 20; ignition transformer 27; terminal box 25; photosensitive tube 18; photosensitive tube cooling tracheae 5; check compositions such as door closure 4 and flame-observing hole 19.Steady flame tube 12 links to each other with casing 3 front ends by preceding adpting flange 8.Flame regulator 9 and atomizing disk 13 place steady flame tube 12 inner chambers.Spray gun assembly places in the cavity of casing 3 and steady flame tube 12, fixedlys connected with casing inner wall.Spray gun execution unit and control valve group are installed in outside the casing, are connected with spray gun assembly to communicate.Burner is fixedly connected with firing equipment by preceding adpting flange 8.Air inlet 28 is connected in casing 3 rear end lower, with casing 3 intracavity inter-connections.Air door 30 places in the air inlet.Oil pump electrical machinery fixed mount 23 is installed on casing 3 outsides, and Oil pump electrical machinery 29 is installed on the Oil pump electrical machinery fixed mount 23, is connected with oil pump 31.Air door and oil mass are regulated servomotor device 32 automatically and are installed on the casing 3, link to each other with air door 30 and cam mechanism 21 respectively, and air door transmission mechanism 26 places air door one side, with the axle of the air door transmission that directly links.Blast protection switch 24 is installed on air door 30 1 sides, links to each other with air door.Oil circuit instrument valve assembly 20 is connected in series oil pump 31, oil gun, flow control valve.Photosensitive tube 18 is inserted in the position that casing 3 front portions can measure light in the burner, links to each other with photosensitive tube cooling tracheae 5.Check that door closure 4 lids place casing top, flame-observing hole 19 to be arranged on oil, the slurry rifle fixed head 2, are used to observe flame situation in the burner.
As Fig. 3,6,7, spray gun assembly mainly is made of slurry rifle 15, oil gun 11, automatic ignitor 6 (fire rod), spray gun seat 10 and spray gun seat center bearing bracket 7.Slurry rifle 15 and oil gun 11 are placed through in the spray gun seat 10 side by side.Spray gun seat 10 is placed through in spray gun seat center bearing bracket 7 centre bores.Automatically ignitor 6 is placed side by side in oil gun 21 sides, and places spray gun seat center bearing bracket 7 outsides.Automatically ignitor 6 usefulness ignitor pressing plates 34 compress, and fixedly connected (as Fig. 6,7) with spray gun seat center bearing bracket 7 with ignitor hold-down screw 36.Spray gun seat center bearing bracket 7 is fixedlyed connected with casing 3 inwalls.Atomizing disk 13 is connected in spray gun seat center bearing bracket 7 front sides, places in the flame regulator 9.Slurry rifle 15 rear ends are provided with water-coal-slurry, water-coal-slurry flushing water and purge gas inlet 15-1, and side is provided with compressed air or steam inlet 15-2 (Fig. 3,5,6).Slurry rifle 15 and oil gun 11 front ends place in the flame regulator 9, and the rear end is fixed on oil, the slurry rifle fixed head 2, and oil, slurry rifle fixed head 2 are fixedly connected on casing 3 rear ends.
Slurry rifle 15 rear ends are provided with water-coal-slurry, water-coal-slurry flushing water and purge gas inlet 15-1, and side is provided with atomizing air or steam inlet 15-2.
As Fig. 8, the shower nozzle of slurry rifle 15 adopts combined porous structure, and its sprayer body 15-4 head periphery offers a plurality of gun holes, is inlaid with a plurality of heat-resistant antifriction earthenware 15-3 in the gun hole, earthenware 15-3 and sprayer body inner chamber and sprayer body are interlinked to the outside, to realize the ejection of water-coal-slurry.Offer unthreaded hole in the middle of the sprayer body 15-4, the wear-resisting flat head screw 15-6 of bump is housed in the unthreaded hole.Clash into wear-resisting flat head screw 15-6 afterbody tack 15-6-1 and place in the sprayer body cavity, be used to compress earthenware and the columnar water coal slurry is clashed into into point-like and be convenient to fully mix with atomizing medium, screw head places outside the sprayer body 15-4, revolves on it to put hold-down nut 15-5.
As Fig. 3,5,9,10,11, it is pneumatic or electronic or hydraulic operated valve group 14, atomizing air or steam road are pneumatic or electronic or hydraulic operated valve 16, electronic or pneumatic or the oil gun execution unit 1 that surges, director valve 22 and electronics pilot valve group 17 are formed that spray gun execution unit and control valve group are mainly swept the road by slurry and water, air-blowing.Road pneumatic or electronic or hydraulic operated valve group 14 and atomizing air are swept in slurry and water, air-blowing or the steam road is pneumatic or electronic or hydraulic operated valve 16 is fixedly connected on oil, slurry rifle fixed head 2 outer ends.Its outlet is connected with the atomizing air of water-coal-slurry, water-coal-slurry flushing water and the purge gas inlet 15-1 of slurry rifle 15 rear ends and side or steam inlet 15-2 respectively and communicates.Electronic or the pneumatic or oil gun execution unit 1 that surges is connected in casing rear end, is connected communicate (Fig. 3,6) with oil gun 11 by oil-gun nipple 36.Flow control valve 22 links to each other with oil gun 11 outlet and oil return pipe respectively, and with the cam mechanism Contact Transmission, oil pump 31 is connected with the oil gun import.Electronics pilot valve group 17 is installed on left side or the right side or the rear portion of casing 3, and it is pneumatic or electronic or hydraulic operated valve group 14, atomizing air or steam road are pneumatic or electronic or hydraulic operated valve 16 and electronic or the pneumatic or oil gun execution unit 1 that surges all are electrically connected with electric-control system by electronics pilot valve group 17 that the road is swept in slurry and water, air-blowing.
As Figure 10～11, slurry and water, air-blowing sweep pneumatic or the electronic or hydraulic operated valve group 14 in road by the water-coal-slurry road pneumatic or electronic or hydraulic operated valve 14-1, the flushing water route is pneumatic or electronic or hydraulic operated valve 14-2, purging air or steam road are pneumatic or motor-driven valve 14-3 and many siphunculus connect 14-6,14-7, check-valves 14-5 and adapter and pipe and meet 14-4 and form.Pneumatic or the electronic or hydraulic operated valve 14-1 in water-coal-slurry road (two logical combinations, threeway or four-way) meets 14-7 with many siphunculus and links to each other; Pneumatic or the electronic or hydraulic operated valve 14-2 in pneumatic or motor-driven valve 14-3 in purging air or steam road and flushing water route meets 14-6 with many siphunculus respectively and is connected, many siphunculus meet 14-6 and meet 14-7 by check-valves 14-5 with many siphunculus and link to each other, and many siphunculus meet 14-7 by taking over and pipe meets 14-4 and is connected with water-coal-slurry, water-coal-slurry flushing water and the purge gas inlet 15-1 of water-coal-slurry spray gun rear end.
As Figure 12～14, road, pneumatic or electronic or hydraulic operated valve group 14 and atomizing air are swept in slurry and water, air-blowing or the steam road is pneumatic or electronic or hydraulic operated valve 16 is capable of being combined becomes a pneumatic or electronic or logical combination valve 32 that surges.Described logical combination valve 32 comprises combinaing valve body 32-2, has offered side by side vertically in the combinaing valve body 32-2 that water-coal-slurry is advanced, loop 32-201, atomizing medium road 32-204, flushing water route 32-202 and blowing medium road 32-203; Corresponding to each road, the last front side of combinaing valve body 32-2 is provided with water-coal-slurry import 32-211, compressed air or steam inlet 32-213 and flushing water import 32-212, rear side are provided with water-coal-slurry and blowing medium outlet 32-221 and atomizing air or steam (vapor) outlet 32-222, and side is provided with overfall mouth 32-231; Water-coal-slurry is advanced, loop 32-201 import is connected with water-coal-slurry import 32-211 and communicates, outlet is connected with overfall mouth 32-231 and communicates, the 32-204 import of atomizing medium road is connected with compressed air or steam inlet 32-213 and communicates, outlet is connected with atomizing air or steam (vapor) outlet 32-222 and communicates, flushing water route 32-202 import is connected with flushing water import 32-212 and communicates, the 32-203 import of blowing medium road is connected with compressed air or steam inlet 32-213 and communicates, flushing water route 32-202 and blowing medium road 32-203 outlet are merged into the outlet of water-coal-slurry blowing medium, the outlet of water-coal-slurry blowing medium is advanced with water-coal-slurry, 32-201 outlet in loop merges into water-coal-slurry and blowing medium outlet 32-221, and the outlet of water-coal-slurry blowing medium is provided with built-in check-valves 4; Water-coal-slurry is advanced, be equipped with corresponding each spool 32-301,32-304,32-302,32-303 in loop 32-201, atomizing medium road 32-204, flushing water route 32-202 and the blowing medium road 32-203; Corresponding to each spool, the vertical also arranging device in combinaing valve body 32-2 top has corresponding switch executing element 32-101,32-104,32-102,32-103, and each switch executing element 32-101,32-104,32-102,32-103 are connected with corresponding each spool 32-301,32-304,32-302,32-303 respectively.The water-coal-slurry of logical combination valve 32 and blowing medium outlet 32-221 are connected with water-coal-slurry, water-coal-slurry flushing water and the purge gas inlet 15-1 of water-coal-slurry spray gun 15, atomizing air or steam (vapor) outlet 32-222 are connected with the compressed air or the steam inlet 15-2 of water-coal-slurry spray gun 15, and the logical combination valve 32 and electronic or the pneumatic or oil gun execution unit 1 that surges all are electrically connected with electric-control system by electronics pilot valve group 17.
Burner control explanation:
Elder generation's fuel oil when temperature in the burner hearth reaches water-coal-slurry when flammable, starts water-coal-slurry, then:
1, fetch boiling water synchronously coal slurry road spool and atomizing medium road spool are connected water-coal-slurry import and outlet, connect compressed air or steam inlet and atomizing air or steam (vapor) outlet, and burner begins combusting coal water slurry;
During 2, brennschluss water-coal-slurry, close synchronously water-coal-slurry road spool and atomizing medium road spool, water-coal-slurry import and overfall mouth are connected;
3, open flushing water route spool, flushing water import and water-coal-slurry and blowing medium outlet are connected, and the slurry in the coal-water slurry nozzle is rinsed well, regularly close after the flushing;
4, open blowing medium road spool, compressed air or steam and water-coal-slurry and blowing medium outlet are connected, and the various residues in the coal-water slurry nozzle are purged totally, close after regularly purging;
5, once more during start and stop metabolic water coal slurry, repeat above each step.
Pneumatic with individual feature or electronic or hydraulic operated valve group is compared, logical combination valve arrangement compactness, and integraty is strong, and outward appearance is clean and tidy; Can save many adapters and pipe and connect, easy for installation; Can shorten pipeline length, prevent pipeline blockage, easy cleaning.
Electronic or the pneumatic or hydraulic operated valve of oil circuit can be realized the automatic switch of oil gun; Pneumatic or the electronic or hydraulic operated valve in water-coal-slurry road can be realized the automatic switchover of automatic whitewashing, stop-spraying slurry, overfall; Wash the water route and purge pneumatic or the electronic or hydraulic operated valve front end band check-valves of gas circuit, can realize automatic flushing and automatic purging the to spray gun, prevent the coal-water slurry nozzle obstruction, check-valves can prevent that water-coal-slurry from entering flushing and purging the road blocking pipe; Pneumatic or the electronic or hydraulic operated valve (front end can be with check-valves) of atomizing air or steam can be realized the automatic switch to atomizing medium.
Electronic or the pneumatic or oil gun execution unit that surges can be realized the automatic switch of oil gun; Pneumatic or the electronic or hydraulic operated valve in water-coal-slurry road can be realized the automatic switchover of automatic whitewashing, stop-spraying slurry, overfall; Clean pneumatic or the electronic or hydraulic operated valve front end band check-valves in water route, can realize automatic flushing and automatic the purging, prevent that the water-coal-slurry spray gun from stopping up spray gun; Pneumatic or the electronic or hydraulic operated valve front end band check-valves of atomizing air or steam can be realized the automatic switch to atomizing medium.
As Fig. 4, ignitor 6 is electrically connected with ignition transformer 27 interfaces automatically.Adopt ignition transformer and automatic ignitor to light a fire automatically.Ignition transformer 27 is directly installed in the terminal box 25.Terminal box 25 is fixed on the side of casing rear end bottom.Binding post in the terminal box links to each other with each function element on the burner respectively, is electrically connected with burner control system again.Can realize the automatic control of control system to each function.Binding post in photosensitive tube and the terminal box is electrically connected, can survey the interior light of burner, plays the auto extinguishing protective effect.
The concrete automatic control flow chart of boiler is expressed as follows:
Before starting boiler, under all ready-made prerequisite of all preparations, start the boiler button, then the boiler switch closure, interlock circuit is unimpeded, start air-introduced machine, adjust frequency, make burner hearth be in micro-vacuum state, start burner then, air blast starts, and air door reaches big air door, and burner hearth is purged, after 30 seconds, air door reaches little air door, and ignition transformer begins sparking, after 3 seconds, open the one-level solenoid, whether the automatic detection of photosensitive tube this moment catches fire, as does not catch fire then burner fault alarm blowing out, close oil-closing valve, air blast carries out post-purge; Repeat above-mentioned ignition procedure.When detecting flame, air door is progressively opened greatly after 5 seconds, during to secondary fuel tap switching point, opens the secondary fuel tap, continues out big air door, and this moment, the startup of burner fuel oil state finished.
When furnace temperature arrives the whitewashing temperature, start deduster spray pump, coal slurry whitewashing valve, atomizing air valve, water-coal-slurry is caught fire, and beginning slurry oil multifuel combustion observes that slurry is pressed, pressure, furnace temperature, furnace flame situation in the stove.Progressively improve stock volume, the blow rate required, air inducing amount by frequency conversion, be adjusted to micro-vacuum state, when furnace temperature continued to rise to certain value, the secondary fuel tap cut out.At this moment, further improve stock volume, the blow rate required, air inducing amount by frequency conversion; When air inducing amount, the blow rate required, stock volume continue to strengthen, observe pressure, furnace temperature, furnace flame situation in slurry pressure, the stove, when furnace temperature is raised to certain value, close the one-level fuel tap.The control water-coal-slurry continues smooth combustion, and adds large-scale combustion gradually, and flame is full of burner hearth, up to normal combustion.The superelevation water level protection: by level electrode sensed water level superelevation, the not blowing out of only reporting to the police.In normal course of operation, because cause specific, it is ultralow that level electrode detects water level, then warning, blowing out; Steam pressure overpressure controller is provided with the height blowing out of reporting to the police in limited time; When exhaust gas temperature reaches its setting maximum temperature (exhaust gas temperature meter), report to the police automatically, but not blowing out.
Claims (10)
1, metabolic water coal slurry, oily boiler for dual purpose are controlled in a kind of frequency conversion with built-in precombustion chamber automatically, comprise boiler body (40) and burner (37), burner (37) is connected with the front wall (38) of boiler body (40), it is characterized in that: described boiler body (40) furnace front is built-in with precombustion chamber (39), and precombustion chamber (39) is made one with the front wall (38) of boiler body (40); Described burner (37) adopts automatic and separated combusting coal water slurry, oily dual burner, it comprises casing (3), spray gun assembly, spray gun execution unit and control valve group, air door mechanism, oil pump (31) and Oil pump electrical machinery (29), spray gun assembly places in the casing (3), spray gun execution unit and control valve group place outside the casing (3), be connected with spray gun assembly and communicate, air door mechanism is connected in casing (3) rear end lower, with casing (3) intracavity inter-connection, Oil pump electrical machinery (29) links to each other with oil pump (31), and oil pump (31) is connected with spray gun assembly.
2, metabolic water coal slurry, oily boiler for dual purpose are controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 1 automatically, it is characterized in that described spray gun assembly comprises slurry rifle (15), oil gun (11), spray gun seat (10), spray gun seat center bearing bracket (7) and ignitor (6), slurry rifle (15) and oil gun (11) are placed through in the spray gun seat (10), spray gun seat (10) is placed through in the spray gun seat center bearing bracket (7), ignitor or fire rod (6) place oil gun (21) side, and spray gun seat center bearing bracket (7) is fixedlyed connected with casing (3) inwall.
3, the metabolic water coal slurry is controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 2 automatically, the oil boiler for dual purpose, it is characterized in that described spray gun execution unit and control valve group comprise slurry and water, pneumatic or the electronic or hydraulic operated valve group (14) in road is swept in air-blowing, pneumatic or the electronic or hydraulic operated valve (16) in atomizing air or steam road, electronic or the pneumatic or oil gun execution unit (1) that surges, flow control valve (22) and electronics pilot valve group (17), slurry and water, road pneumatic or electronic or hydraulic operated valve group (14) and atomizing air are swept in air-blowing or the steam road is pneumatic or electronic or hydraulic operated valve (16) outlet respectively with the water-coal-slurry of slurry rifle (15), the water-coal-slurry flushing water is connected with atomizing air or steam inlet (15-2) with purge gas inlet (15-1) and communicates; Electronic or the pneumatic or oil gun execution unit (1) that surges is connected with oil gun (11), oil pump (31) is connected with oil gun (11) import, oil gun outlet is connected with flow control valve (22), and it is pneumatic or electronic or hydraulic operated valve group (14), atomizing air or steam road are pneumatic or electronic or hydraulic operated valve (16) and electronic or the pneumatic or oil gun execution unit (1) that surges all are electrically connected with electric-control system by electronics pilot valve group (17) that the road is swept in slurry and water, air-blowing.
4, the metabolic water coal slurry is controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 3 automatically, the oil boiler for dual purpose, it is characterized in that described slurry and water, air-blowing is swept pneumatic or the electronic or hydraulic operated valve group (14) in road and is comprised pneumatic or the electronic or hydraulic operated valve (14-1) in water-coal-slurry road, pneumatic or the electronic or hydraulic operated valve (14-2) in flushing water route, pneumatic or the electronic or hydraulic operated valve (13-3) in purging air or steam road and many siphunculus meet (14-6,14-7), check-valves (14-5) and adapter and pipe meet (14-4), pneumatic or the electronic or hydraulic operated valve (14-1) in water-coal-slurry road meets (14-7) with many siphunculus and links to each other, pneumatic or the electronic or hydraulic operated valve (14-2) in pneumatic or electronic or hydraulic operated valve (13-3) in purging air or steam road and flushing water route meets (14-6) with many siphunculus respectively and is connected, many siphunculus meet (14-6) and meet (14-7) by check-valves (14-5) and many siphunculus and be connected, and many siphunculus meet (14-7) by taking over and pipe connects the water-coal-slurry of (14-4) and water-coal-slurry spray gun (15), water-coal-slurry flushing water and purge gas inlet (15-1) are connected.
5, the metabolic water coal slurry is controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 2 automatically, the oil boiler for dual purpose, it is characterized in that described spray gun execution unit and control valve group comprise slurry and water, the road is swept in air-blowing, pneumatic or the electronic or logical combination valve (32) that surges in atomizing medium road, electronic or pneumatic or surge oil gun execution unit (1) flow control valve (22) and electronics pilot valve group (17), logical groups is set up (32) jointly and is comprised combinaing valve body (32-2), is provided with water-coal-slurry in the combinaing valve body (32-2) and advances, loop (32-201), atomizing medium road (32-204), flushing water route (32-202) and blowing medium road (32-203); Corresponding to each road, combinaing valve body (32-2) is provided with water-coal-slurry import (32-211), compressed air or steam inlet (32-213), flushing water import (32-212), water-coal-slurry and blowing medium outlet (32-221), overfall mouth (32-231) and atomizing air or steam (vapor) outlet (32-222); Water-coal-slurry is advanced, loop (32-201) import is connected with water-coal-slurry import (32-211) and communicates, outlet is connected with overfall mouth (32-231) and communicates, atomizing medium road (32-204) import is connected with compressed air or steam inlet (32-213) and communicates, outlet is connected with atomizing air or steam (vapor) outlet (222) and communicates, flushing water route (32-202) import is connected with flushing water import (32-212) and communicates, blowing medium road (32-203) import is connected with compressed air or steam inlet (32-213) and communicates, flushing water route (32-202) and blowing medium road (32-203) outlet are merged into the outlet of water-coal-slurry blowing medium, and the outlet of water-coal-slurry blowing medium is advanced with water-coal-slurry, loop (32-201) outlet merges into water-coal-slurry and blowing medium outlet (32-221); Water-coal-slurry is advanced, be equipped with each spool (32-301,32-304,32-302,32-303) accordingly in loop (32-201), atomizing medium road (32-204), flushing water route (32-202) and blowing medium road (32-203); Corresponding to each spool, combinaing valve body (32-2) outside device has corresponding switch executing element (32-101,32-104,32-102,32-103), and each switch executing element (32-101,32-104,32-102,32-103) is connected with corresponding each spool (32-301,32-304,32-302,32-303) respectively; Electronic or pneumatic or oil gun execution unit (1) outlet of surging is connected with oil gun (11), import be connected with oil pump (31), be connected with flow control valve (22) with oil pump (31), the water-coal-slurry of the water-coal-slurry of logical combination valve (32) and blowing medium outlet (32-221) and water-coal-slurry spray gun (15), water-coal-slurry flushing water and purge gas inlet (15-1) are connected, atomizing air or steam (vapor) outlet (32-222) are connected with the compressed air or the steam inlet (15-2) of water-coal-slurry spray gun (15), and the logical combination valve (32) and electronic or the pneumatic or oil gun execution unit (1) that surges all are electrically connected with electric-control system by electronics pilot valve group (17).
6, according to claim 1 or 2,3,4, the metabolic water coal slurry is controlled in 5 described a kind of frequency conversions with built-in precombustion chamber automatically, the oil boiler for dual purpose, it is characterized in that described air door mechanism comprises air inlet (28), air door (30), air door transmission mechanism (26), air door and oil mass are regulated servomotor device (32) and cam mechanism (21) automatically, air inlet (28) is connected in casing (3) sidewall rear end lower, with casing (3) intracavity inter-connection, air door (30) places in the air inlet (28), air door and oil mass are regulated servomotor device (32) automatically and are linked to each other with air door (30) and cam mechanism (21) respectively, the transmission that directly links of air door transmission mechanism (26) and axle of the air door, cam mechanism (21) transmission that contacts with flow control valve (22).
7, control metabolic water coal slurry, oily boiler for dual purpose automatically according to claim 1 or 2,3,4,5 described a kind of frequency conversions with built-in precombustion chamber, it is characterized in that described casing (3) front end is connected with steady flame tube (12), steady built-in flame regulator of flame tube (12) (9) and atomizing disk 13, atomizing disk (13) is connected in the spray gun assembly front end.
8, metabolic water coal slurry, oily boiler for dual purpose are controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 3 automatically, it is characterized in that described casing (3) rear end is fixedly connected with spray gun fixed head (2), it is pneumatic or electronic or hydraulic operated valve group (14), atomizing air or steam road are pneumatic or electronic or hydraulic operated valve (16) all is connected on the spray gun fixed head (2) that the road is swept in slurry rifle (15) and oil gun (11) rear end and slurry and water, air-blowing.
9, metabolic water coal slurry, oily boiler for dual purpose are controlled in a kind of frequency conversion with built-in precombustion chamber according to claim 2 automatically, the shower nozzle that it is characterized in that described slurry rifle (15) adopts combined porous structure, its sprayer body (15-4) head periphery offers a plurality of gun holes, be inlaid with earthenware (15-3) in the gun hole, middle device flat head screw (15-6), flat head screw (15-6) afterbody tack (15-6-1) places in the sprayer body cavity.
10, control metabolic water coal slurry, oily boiler for dual purpose automatically according to claim 1 or 2,3,4,5 described a kind of frequency conversions with built-in precombustion chamber, it is characterized in that described precombustion chamber (39) adopts material refractory material (43) one-piece casting of high temperature resistant impermeabilisation to form, precombustion chamber outlet both sides are provided with firebreak (41), and the bottom is provided with ash dropping hopper (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074600 CN2856727Y (en) | 2005-08-17 | 2005-08-17 | Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074600 CN2856727Y (en) | 2005-08-17 | 2005-08-17 | Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856727Y true CN2856727Y (en) | 2007-01-10 |
Family
ID=37600034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074600 Expired - Lifetime CN2856727Y (en) | 2005-08-17 | 2005-08-17 | Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856727Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408916C (en) * | 2005-08-16 | 2008-08-06 | 江苏双良锅炉有限公司 | Frequency conversion and automatically controlled dual-purpose boiler with built-in precombustion chamber using coal water slurry or oil as fuel |
| CN102927559A (en) * | 2012-11-15 | 2013-02-13 | 广西梧州日成林产化工股份有限公司 | Combustion system for coal-water slurry boiler |
| CN103759253A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Coal water slurry boiler system with auxiliary combustion chamber and working method thereof |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
| CN114562723A (en) * | 2022-03-04 | 2022-05-31 | 四川科达节能技术有限公司 | Steel rolling heating furnace blowback nozzle |
-
2005
- 2005-08-17 CN CN 200520074600 patent/CN2856727Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408916C (en) * | 2005-08-16 | 2008-08-06 | 江苏双良锅炉有限公司 | Frequency conversion and automatically controlled dual-purpose boiler with built-in precombustion chamber using coal water slurry or oil as fuel |
| CN103759253A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Coal water slurry boiler system with auxiliary combustion chamber and working method thereof |
| CN102927559A (en) * | 2012-11-15 | 2013-02-13 | 广西梧州日成林产化工股份有限公司 | Combustion system for coal-water slurry boiler |
| CN102927559B (en) * | 2012-11-15 | 2016-04-27 | 广西梧州日成林产化工股份有限公司 | Combustion system for coal-water slurry boiler |
| US10287522B2 (en) | 2013-01-31 | 2019-05-14 | General Electric Company | System and method for preparing coal water slurry |
| CN114562723A (en) * | 2022-03-04 | 2022-05-31 | 四川科达节能技术有限公司 | Steel rolling heating furnace blowback nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102607018B (en) | Graded air-feed dual-swirled pulverized coal industrial furnace combustor | |
| CN2856727Y (en) | Auto conversion controlled coal slurry and oil burning boiler with built-in burning chamber | |
| CN102563640A (en) | Oil burner with high-efficiency burning and low pollution emission | |
| CN100408916C (en) | Frequency conversion and automatically controlled dual-purpose boiler with built-in precombustion chamber using coal water slurry or oil as fuel | |
| CN205878143U (en) | It is automatic control methyl alcohol environmental protection boiler technique device to reform transform coal burning boiler | |
| CN203375455U (en) | Preset type auxiliary combustion chamber combustor | |
| CN112113215A (en) | Low-calorific-value gas low-nitrogen cyclone burner with adjustable flame shape | |
| CN204478024U (en) | Oil-based fuel and alcohol-group fuel co-fire device | |
| CN104946833A (en) | Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower | |
| CN1303358C (en) | Full-automatic dual purpose split burner for combustion of slurry and oil | |
| CN2725719Y (en) | Fully-automatic integrated dual-purpose burner using water-coal fluid or oil | |
| CN2926843Y (en) | Oil-enhanced combustion trigger of coal powder boiler | |
| CN108679604A (en) | A kind of mixed sky/cigarette light-hydrocarbon gas prepares burner | |
| CN2733183Y (en) | Full-automatic dual purpose split burner for combustion of slurry and oil | |
| CN102818265B (en) | Application of heat-accumulating high-temperature air burning method in burner and burning furnace | |
| CN201811282U (en) | Side igniter | |
| CN2743707Y (en) | Full automatic dual purpose burner using water coal slurry, gas as fuel | |
| CN208457953U (en) | A kind of mixed sky/cigarette light-hydrocarbon gas prepares burner | |
| CN1293344C (en) | Full-automatic dual purpose integral burner for combustion of slurry and oil | |
| CN1303359C (en) | Full-automatic dual purpose split burner for combustion of coal water slurry and gas | |
| CN217757528U (en) | High-altitude ignition burning device for gas burning | |
| CN217503642U (en) | High-efficiency combustion low-pollution emission oil burner | |
| CN218269075U (en) | Grid combustion chamber technical device | |
| CN104595888B (en) | The device of oil-based fuel and alcohol-group fuel co-fire | |
| CN218895405U (en) | High-reliability oil refining device combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080806 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |