CN203203244U - Horizontal type coal water slurry organic heat carrier boiler - Google Patents

Horizontal type coal water slurry organic heat carrier boiler Download PDF

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Publication number
CN203203244U
CN203203244U CN 201320071755 CN201320071755U CN203203244U CN 203203244 U CN203203244 U CN 203203244U CN 201320071755 CN201320071755 CN 201320071755 CN 201320071755 U CN201320071755 U CN 201320071755U CN 203203244 U CN203203244 U CN 203203244U
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China
Prior art keywords
heat carrier
organic heat
burner hearth
tube
horizontal water
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CN 201320071755
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Chinese (zh)
Inventor
张又红
周海能
王改
席向东
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Hangzhou environmental protection Polytron Technologies Inc
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HANGZHOU JUNENG BOILER CO Ltd
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Priority to CN 201320071755 priority Critical patent/CN203203244U/en
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Abstract

The utility model discloses a horizontal type coal water slurry organic heat carrier boiler which comprises combustors, lower portion radiant tubes, a hearth, upper portion radiant tubes, a roof tube, convection banks, external connecting tubes, an explosion-proof door, a soot blower, an access door, a soot hopper and the like. The combustors are arranged on a front wall of the horizontal type coal water slurry organic heat carrier boiler, the external connecting tubes are arranged outside a boiler body, the convection banks comprise three sets of convection banks, and are arranged in a horizontal and front-and-back mode, the convection banks are connected through a left pipeline and a right pipeline, a flag surface is formed by the lower portion radiant tubes, the lower portion radiant tubes are arranged in the hearth on the lower portion, and the two ends of each lower portion radiant tube are connected through each external connecting pipeline. The horizontal type coal water slurry organic heat carrier boiler has the advantages of being compact in whole structure, simple in appearance arrangement, small in occupied area, and convenient to operate, facilitating soot cleaning, and being rapid in installation, and safe and reliable in circulation of heating media.

Description

A kind of horizontal water coal slurry boiler of organic heat carrier
Technical field
The utility model belongs to the coal water slurry industry boiler field, is specifically related to a kind ofly take water-coal-slurry as fuel, is used for the horizontal water coal slurry boiler of organic heat carrier of forced circulation.
Background technology
At present, the Industrial Boiler of China general main be to act as a fuel with coal or oil, gas.But traditional industry coal-boiler shortcoming is that efficiency of combustion is low, and hand labor intensity is large, and is seriously polluted, is difficult to satisfy energy-saving and emission-reduction and pollutant emission requirement.Although the efficient of fuel oil, gas boiler is high, has the advantages such as environmental benefit is good, operating cost is too high, and deficiency in economic performance also is difficult to allow the user accept.
Water-coal-slurry is the late 1970s coal new product that develops later on of world oil crisis, and burn-off rate is high, can up to more than 98%, be a kind of novel clean fuel that can replace heavy oil and coal.In the boiler operatiopn overall process, the liquid pipeline of water-coal-slurry is carried and spray burning, and automatic ignition is realized the automation control of most of boiler operatiopn, and is simple to operate.Yet the structure of existing coal water slurry boiler still can not well adapt to cool water mixture burning.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, and aims to provide the boiler of organic heat carrier that can be good at adapting to cool water mixture burning on a kind of structure.
For addressing the above problem, the utility model is by the following technical solutions: a kind of horizontal water coal slurry boiler of organic heat carrier, comprise burner hearth, convection bank and external connecting pipe, it is characterized in that described burner hearth, front end is provided with burner, and the bottom is provided with the bottom radiant tube, the middle part is provided with the top radiant tube, top is provided with the burner hearth outlet flue, and the top is provided with roof tube, and the bottom is provided with furnace hopper; The stable burning room of certain-length is left in described lower furnace portion and described burner coupling part; Described convection bank is horizontally installed in the vertical passage with described burner hearth outlet flue UNICOM; Described convection bank, external connecting pipe, bottom radiant tube, top radiant tube and roof tube successively UNICOM consist of the heating agent circulatory system of sealing; Described vertical passage bottom is provided with ash dropping hopper and ash tube; Described ash tube and furnace hopper are connected to mucking machine or ash silo.
Horizontal water coal slurry boiler of organic heat carrier of the present utility model, water-coal-slurry borrows compressed air to spray into horizontal burner hearth by anterior burner, simultaneously, high temperature air after air preheater heating also enters burner and is mixed into burner hearth with coal water slurry fuel and carries out fierce suspension combustion, has guaranteed that burner hearth has sufficient oxygen and fuel reaction to burn.180 ° of high-temperature flue gas after hearth combustion heat exchange turnovers enter convection bank downwards and carry out heat convection, and flue gas enters convection tube more successively, enters flue gas purification system behind back-end surfaces again.Dust stratification in the burner hearth falls into mucking machine automatically by ash dropping hopper, and the dust stratification of convection bank also falls into mucking machine by ash tube, is deposited into the appointed place by dolly.
The utlity model has following advantage:
1, furnace front is provided with stable burning room, and top secondary furnace and convection bank are down " W " shape.
Owing to containing 30~40% moisture in the water-coal-slurry, after water-coal-slurry sprays into the combustion chamber, could be lighted after need evaporating first moisture wherein, so being set in the front portion of burner hearth, the stable burning room of certain-length (also is pilot chamber, length is different and different according to the calorific value of slurry), the both sides of stable burning room and top are by the roasting heat of fire, the furnace wall of high temperature will enter the water-coal-slurry of burner hearth and carry out hyperthermia radiation, in the moment through stable burning room, moisture in the water-coal-slurry evaporates rapidly and obtains waste heat, entering behind the lower furnace middle part is incendivity, ignites fast, thereby guarantees to light a fire successfully and smooth combustion; Pass through again upper furnace to three groups of convection tubes, because burner front wall collocation, after flame elder generation level is walked one section vertically upward, thereby whole flue gas is down " W " shape, and flue gas flow reaches more than 8 meters, has prolonged the burning time of water-coal-slurry, can guarantee full combustion of fuel and burn, reduce the generation of total ash amount, thereby can improve the thermal efficiency of boiler, saved fuel.
2, the burner hearth ash that automatically falls, convection bank automatic folding ash.
Burner hearth bottom is designed with the wide-angle ash dropping hopper, so that the smooth and easy mucking machine that falls into of coal ash after the burning need not the labor cleaning, mucking machine can adopt scraper type slag extractor;
The upper and lower parallel baffled of boiler convection bank smoke three-pass, each convection heating surface flue gas flow rate is all about 10m/s, prevent the convection tube dust stratification, flying dust can be fallen in infall process in the furnace hopper of bottom, be discharged to again on the mucking machine or ash silo in the convection bank ash that falls can adopt strength to carry, the wet ash of boiler can adopt belt conveyor to be delivered to coal cinder yard, regularly transportation.
As further improvement of the utility model, described burner is two, and respectively independent control.The benefit that double burner is arranged is that each burner can control separately, greatly improves the stability of burning and the adjusting function of load, can use two or more fuel simultaneously.
Further improve as of the present utility model, described two burners are horizontally disposed up and down again, according to the straight warp of burner outlet, fully take into account centre-to-centre spacing and with the distance of side wall and ash dropping hopper, make not touch screen of flame, swirling eddy upwards, sufficient combustion.
Further improve as of the present utility model again, adopt grading combustion technology, send into tertiary air in the burner hearth, whole uniform temperature fields can effectively stop the generation of burner hearth coking and reduction nitrogen oxide.
Further improve as of the present utility model, described upper furnace is provided with an explosion proof door, to guarantee the security of boiler combustion again.
Further improve as of the present utility model, described burner hearth sidewall is provided with at least one cleaning door and access door again.All leave ash removing opening and observation door at the position that boiler is suitable, can check the dust stratification situation of combustion position He each heating surface of boiler.
Further improve again as of the present utility model, at the suitable position of each heating surface soot blower is housed, can remove the dust stratification on the heating surfaces such as high low temperature convection bank and lower furnace radiant tube.Simultaneously, be furnished with the strength soot blower at the convection bank corresponding position, the dust stratification on the timely and effective removing coil pipe of energy.
Further improve as of the present utility model, the open-angle of described ash dropping hopper is greater than angle of repose (namely greater than 55 degree), so that the smooth and easy mucking machine that falls into of coal ash after the burning again.
Further improve as of the present utility model, described lower radiant tube has all been arranged at the described lower furnace portion left and right sides and rear portion again, can prevent slagging with imitating.
Further improve as of the present utility model, the top of described vertical passage is separated into the flue that three front and back be arranged in parallel, described three flues series connection UNICOM, the two ends of described series loop respectively with described burner hearth outlet flue and exhanst gas outlet UNICOM; Described convection bank is three groups, is separately positioned in described three flues in high to Low minute.Two convection current coil pipes that are arranged side by side about described every group of convection bank comprises.Because described convection bank level from front to back three groups of dislocation is arranged, thereby is had the following advantages: 1. flue gas transversal flow tube bank, the heat absorption of favourable convection tube group, heat exchange is abundant.2. three groups of cigarettes such as convection bank employing speed design so that every group guarantee that simultaneously flue gas flow rate reaches about 10m/s, makes tube bank be difficult for dust stratification.3. convection bank and header are assembled in factory and are dispatched from the factory, and can avoid the hidden danger of high temperature heat conductive oil seepage, and shorten installation period.4. the convection bank periphery is provided with access door.5. parallel-connection structure is all adopted in convection current, reduces thermal stress and conduction oil flow resistance.6. compare with the horizontal boiler in bulk of tradition, only have the part assembly welding to carry out at the scene, check is convenient, can guarantee that product quality 100% is qualified.
In addition, boiler export can also be installed the vacuum table interface, reserves the vacuum table interface on the cigarette air channel, can monitor at any time the collecting ash situation.
Description of drawings
Fig. 1 is the structure chart of the utility model horizontal water coal slurry boiler of organic heat carrier.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the B-B of Fig. 1 is to cutaway view.
Among the figure, 1-burner, 2-stable burning room, 3-bottom radiant tube, 4-external connecting pipe, 5-burner hearth, 6-top radiant tube, 7-roof tube, 8-explosion proof door, 9-burner hearth outlet flue, 10-access door, 11-convection bank group, 12-furnace hopper 13-mucking machine, 14-ash dropping hopper, 15-ash tube, 18-vertical passage.
The specific embodiment
With reference to accompanying drawing, a kind of horizontal water coal slurry boiler of organic heat carrier of the present utility model, comprise burner hearth 5, convection bank 11 and external connecting pipe 4, it is characterized in that described burner hearth 4, front end is provided with burner 1, and the bottom is provided with bottom radiant tube 3, the middle part is provided with top radiant tube 6, top is provided with burner hearth outlet flue 9, and the top is provided with roof tube 7, and the bottom is provided with furnace hopper 12; The stable burning room 2 of certain-length is left in described burner hearth 5 bottoms and described burner 1 coupling part; Described convection bank 11 is horizontally installed in the vertical passage 18 with described burner hearth outlet flue 9 UNICOMs; Described convection bank 11, external connecting pipe 6, bottom radiant tube 3, top radiant tube 6 and roof tube 7 successively UNICOM consist of the heating agent circulatory system of sealing; Described vertical passage 18 bottoms are provided with ash dropping hopper 14 and ash tube 15; Described ash tube 15 and furnace hopper 12 are connected to mucking machine 13 or ash silo.
Described burner 1 is two, is horizontally disposed up and down, and respectively independent control.
Described burner hearth 4 tops are provided with an explosion proof door 8.The suitable position of described burner hearth 4 sidewalls is provided with cleaning door and access door 10.The described burner hearth left and right sides, 5 bottom and rear portion all are furnished with described lower radiant tube 6.
For making ash smooth and easy, the open-angle of described ash dropping hopper 14 is greater than angle of repose.
The top of described vertical passage 18 is separated into the flue that three front and back be arranged in parallel, described three flues series connection UNICOM, the two ends of described series loop respectively with described burner hearth outlet flue 9 and exhanst gas outlet UNICOM; Described convection bank 11 is three groups, is separately positioned on from high to low in described three flues.Two convection current coil pipes that are arranged side by side about described every group of convection bank 11 comprises.
Operation principle of the present utility model is as follows:
Water-coal-slurry borrows compressed air to spray into stable burning room 2 by two burners 1 in front, simultaneously, high temperature air after air preheater heating also enters burner 1 and is mixed into stable burning room 2 with coal water slurry fuel and carries out fierce suspension combustion, has guaranteed that burner hearth has sufficient oxygen and fuel reaction to burn.Enter three groups of convection tubes 11 downwards 180 ° of outlet flue 9 turnovers of the high-temperature flue gas after the hearth combustion heat exchange above the upper furnace and carry out heat convection, flue gas enters the afterbody residual heat using device again, after enter flue gas purification system.In flue gas purification system, the solid particle in the flue gas is eliminated, and clean preheated air sprays into burner hearth 4 bottoms again from two burners 1.
Convection bank group 11, external connecting pipe 4, bottom radiant tube 3, top radiant tube 6 and roof tube 7 be UNICOM successively, consists of the heating agent circulatory system of sealing.Heating agent in convection bank 11 pipes enters external connecting pipe 4 by tube connector, enter again bottom radiant tube 3, and then enter top radiant tube 6 by tube connector, the roof tube of flowing through again enters external pipe and is transported to the hot equipment of using, during the steam that produces can enter head tank by the high comb of each parts and enter again atmosphere.The flow process of conduction oil has been followed the principle of low in and high out, and pneumatosis not in the heat medium pipe is avoided the pipe hot-spot.Do not reducing under the heating surface prerequisite, shortening the stroke of conduction oil in stove, reducing the conduction oil flow resistance, reducing oil circulating pump operation power consumption.
What the utility model adopted is advanced Full-automatic water-coal-slurry turbulent burner, possesses automatic ignition, automatic powder spraying, the multiple automatic control functions such as burning torch, oil gun automatic entrance-exit, efficiency of combustion high (〉=98%); Being furnished with many automatic valves, electrical wiring etc. on the burner, being designed to integrated, is an electromechanical integrated product, and automaticity is high, have various advanced persons' the function such as pressure, interlock alarm, but timing monitoring is guaranteed safe operation.This boiler has been installed two fully automatic burners at front wall, and is horizontally disposed up and down, according to the straight warp of burner outlet, fully take into account centre-to-centre spacing and with the distance of side wall and ash dropping hopper, make not touch screen of flame, swirling eddy upwards, sufficient combustion.By air register and the aerofoil profile tachymeter that is contained in the burner front end, can adjust comparatively accurately the air quantity that enters each burner, regulate again on each burner the primary and secondary air ratio of self, combustion conditions is adjusted to optimum state.Be equipped with again the front furnace temperature and add the control of rear hearth temperature and demonstration, and detection of negative pressure and control, combustion case be can control comprehensively, and coking and dust stratification effectively prevented.
What should be understood that is: above-described embodiment is just to explanation of the present utility model, rather than to restriction of the present utility model, any utility model that does not exceed in the utility model connotation scope is created, and all falls within the protection domain of the present utility model.

Claims (9)

1. horizontal water coal slurry boiler of organic heat carrier, comprise burner hearth (5), convection bank (11) and external connecting pipe (4), it is characterized in that described burner hearth (4), front end is provided with burner (1), the bottom is provided with bottom radiant tube (3), and the middle part is provided with top radiant tube (6), and top is provided with burner hearth outlet flue (9), the top is provided with roof tube (7), and the bottom is provided with furnace hopper (12); The stable burning room (2) of certain-length is left in described burner hearth (5) bottom and described burner (1) coupling part; Described convection bank (11) is horizontally installed in the vertical passage (18) with described burner hearth outlet flue (9) UNICOM; Described convection bank (11), external connecting pipe (6), bottom radiant tube (3), top radiant tube (6) and roof tube (7) successively UNICOM consist of the heating agent circulatory system of sealing; Described vertical passage (18) bottom is provided with ash dropping hopper (14) and ash tube (15); Described ash tube (15) and furnace hopper (12) are connected to mucking machine (13) or ash silo.
2. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that described burner (1) is two, and respectively independent control.
3. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that described two burners (1) are horizontally disposed up and down.
4. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that described burner hearth (4) top is provided with an explosion proof door (8).
5. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that described burner hearth (4) sidewall is provided with at least one cleaning door and access door (10).
6. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that the open-angle of described ash dropping hopper (14) is greater than angle of repose.
7. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 1 is characterized in that described burner hearth (5) left and right sides, bottom and rear portion all arranged described lower radiant tube (6).
8. such as any one described a kind of horizontal water coal slurry boiler of organic heat carrier of claim 1-7, the top that it is characterized in that described vertical passage (18) is separated into the flue that three front and back be arranged in parallel, described three flues series connection UNICOM, the two ends of described series loop respectively with described burner hearth outlet flue (9) and exhanst gas outlet UNICOM; Described convection bank (11) is three groups, is separately positioned on from high to low in described three flues.
9. a kind of horizontal water coal slurry boiler of organic heat carrier as claimed in claim 8, it is characterized in that described every group of convection bank (11) comprise about two convection current coil pipes that are arranged side by side.
CN 201320071755 2013-02-07 2013-02-07 Horizontal type coal water slurry organic heat carrier boiler Active CN203203244U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320071755 CN203203244U (en) 2013-02-07 2013-02-07 Horizontal type coal water slurry organic heat carrier boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320071755 CN203203244U (en) 2013-02-07 2013-02-07 Horizontal type coal water slurry organic heat carrier boiler

Publications (1)

Publication Number Publication Date
CN203203244U true CN203203244U (en) 2013-09-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103822357A (en) * 2014-03-21 2014-05-28 浙江锅炉有限公司 Horizontal pulverized coal organic heat carrier boiler
CN104279548A (en) * 2013-07-12 2015-01-14 李雨田 Energy-collecting heat exchange environment-friendly boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279548A (en) * 2013-07-12 2015-01-14 李雨田 Energy-collecting heat exchange environment-friendly boiler
CN103822357A (en) * 2014-03-21 2014-05-28 浙江锅炉有限公司 Horizontal pulverized coal organic heat carrier boiler

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Address after: Hangzhou City, Zhejiang province 311115 Pingyao Town, Yuhang District of Guangzhou Road No. 1

Patentee after: Hangzhou environmental protection Polytron Technologies Inc

Address before: Hangzhou City, Zhejiang province 311115 Pingyao Town, Yuhang District of Guangzhou Road No. 1

Patentee before: Hangzhou Juneng Boiler Co., Ltd.