CN206018694U - New water-fire pipe fires smokeless clean moulded coal boiler - Google Patents
New water-fire pipe fires smokeless clean moulded coal boiler Download PDFInfo
- Publication number
- CN206018694U CN206018694U CN201621013613.XU CN201621013613U CN206018694U CN 206018694 U CN206018694 U CN 206018694U CN 201621013613 U CN201621013613 U CN 201621013613U CN 206018694 U CN206018694 U CN 206018694U
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- air
- burner hearth
- arch
- boiler
- moulded coal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model proposes a kind of new water-fire pipe fires smokeless clean moulded coal boiler, using smokeless clean moulded coal as fuel, including：Base and boiler body, the boiler body includes drum and burner hearth, the front portion of the drum is provided with front smoke box, rear portion is provided with rear smoke box, many smoke pipes are installed inside the drum, the smoke pipe is connected with the front smoke box and rear smoke box respectively, the burner hearth is located at drum bottom, the face arch and rear arch of composition " people " font chimney arch is provided with the burner hearth, the swept area of the rear arch is more than the face arch, the afterbody of the rear smoke box is provided with flue, the flue connects the smoke inlet of air preheater, the exhanst gas outlet connection air-introduced machine of the air preheater, the air intlet connection aerator of the air preheater, the air outlet slit of the air preheater connects the burner hearth by air channel.This utility model can make full use of anthracite fuel as the main fuel of boiler, save fund, environmental protection reliability.
Description
Technical field
This utility model is related to boiler, and especially a kind of new water-fire pipe fires smokeless clean moulded coal boiler.
Background technology
The existing Industrial Boiler of China more than 50 ten thousand, enormous amount year consume 4.3 hundred million tons of raw coal charcoal, account for the three of whole nation consumption coal total amount
/ mono-.The characteristics of Industrial Boiler is that individual capacity is little, parameter low technical content is little, automatic control level error.Thus the thermal effect of boiler
Rate is low, and (average 65%), environmental protection index much do not reach the requirement of national regulation.Especially coal-burning boiler, there is no and disappear
Fume and dust facility, the phenomenon of over-emitting black exhaust are quite serious, and smoke dust discharge concentration substantially exceeds national environmental standard, cause serious big
Gas pollutes.
As haze phenomenon was particularly acute in recent years, country and each place government are paid much attention to the improvement of haze, are just fired
For coal burning boiler, which is that, according to anthracitic burning feature, the boiler on market can not be fitted on its raw material for burning at all
Answer which to burn, there is coal uncombusted, the low problem of the thermal efficiency is more projected.
The major influence factors for causing the problems referred to above are：Chamber structure is unreasonable, imperfection, is difficult to create favorably in stove
Burning condition, and the burning of tissue stabilization, therefore combustible be difficult fully to burn in stove.
Utility model content
This utility model proposes a kind of new water-fire pipe and fires smokeless clean moulded coal boiler, fill for the deficiencies in the prior art
Divide the main fuel by the use of past non-serviceable anthracite fuel as boiler, solve at present due in a large number using natural
High cost problem caused by the fuel such as gas, light diesel fuel, saves fund, environmental protection reliability.
The technical solution of the utility model is realized in：
A kind of new water-fire pipe fires smokeless clean moulded coal boiler, using smokeless clean moulded coal as fuel, including：Base and pot
Furnace body, the boiler body include that drum and burner hearth, the front portion of the drum are provided with front smoke box, and rear portion is provided with rear cigarette
Case, is provided with many smoke pipes inside the drum, the smoke pipe is connected with the front smoke box and rear smoke box respectively, the burner hearth position
The face arch and rear arch of composition " people " font chimney arch is provided with drum bottom, the burner hearth, and the swept area of the rear arch is big
In the face arch, the afterbody of the rear smoke box is provided with flue, and the flue connects the smoke inlet of air preheater, the sky
The exhanst gas outlet connection air-introduced machine of air preheater, the air intlet connection aerator of the air preheater, the air preheat
The air outlet slit of device connects the burner hearth by air channel
Preferably, the swept area ratio of the face arch and rear arch is 1:3.
Preferably, the face arch is 40 ° with burner hearth horizontal sextant angle α, and the rear arch is 6 ° with burner hearth horizontal sextant angle β.
Preferably, fire grate is provided with the base, the fire grate is traveling-grate stoker or reciprocal grate.
Preferably, economizer is also connected with the rear smoke box flue outlet.
Preferably, the outer wall of the burner hearth is equipped with secondary air device, for air feed in burner hearth.
Preferably, threaded flue of the smoke pipe using efficient heat transfer.
Boiler body heating surface of the present utility model increase, can fully ensure that the right of anthracitic radiant heat and slow fever body
Stream, reduces exhaust gas temperature, and the coverage rate of face arch 31 is 25%, and the coverage rate of rear arch 32 is 75%, so that anthracite exists
Sufficient preheating time can be obtained in chimney arch, it is ensured that can not make burner hearth cutoff.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation that the new water-fire pipe in this utility model embodiment one fires smokeless clean moulded coal boiler；
Side views of the Fig. 2 for Fig. 1；
Fig. 3 is the structural representation of chimney arch in Fig. 1；
Fig. 4 is the structural representation that the new water-fire pipe in this utility model in embodiment two fires smokeless clean moulded coal boiler
Figure；
Fig. 5 is the structural representation that the new water-fire pipe in this utility model in embodiment three fires smokeless clean moulded coal boiler
Figure.
In figure：
1st, base；2nd, pressure gauge；3rd, burner hearth；31st, face arch；32nd, rear arch；4th, steelframe backplate；5th, drum；61st, front smoke box；
62nd, rear smoke box；7th, fire grate；8th, base；9th, manhole；10th, stop valve；11st, supplementary-air valve；12nd, relief valve；13rd, blowoff valve；14th, save
Coal device；16th, water-level gauge；17th, water level alarm；18th, smoke pipe；19th, convection tube；20th, left header；21st, right header；22nd, connecting tube；
23rd, air preheater；24th, secondary air device；25th, flue；26th, aerator；27th, air channel；
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Embodiment in based on this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
As shown in Figure 1 to Figure 3, the new water-fire pipe of this utility model embodiment one fires smokeless clean moulded coal boiler, with nothing
Used as fuel, the present embodiment is illustrated by taking water-fire pipe traveling-grate stoker steam boiler as an example cigarette clean moulded coal, including base 1 and pot
Furnace body, boiler body are placed on base 1, are provided with steelframe backplate 4, and boiler body includes drum 5 and burner hearth 3, sets on drum 5
Pressure gauge 2, water level alarm 17, water-level gauge 16, stop valve 10, supplementary-air valve 11, relief valve 12 and manhole 9 is equipped with, under drum 5
Portion is provided with drum blow-off pipe, and drum blow-off pipe is controlled by blowoff valve 13, and the front portion of drum 5 is provided with front smoke box 61, and rear portion sets
Rear smoke box 62 is equipped with, the both sides inside drum 5 are respectively arranged with front tube sheet and back tube sheet, and middle part is provided with water inlet pipe, soda pop point
From device and Duo Gen smoke pipes 18, it is preferred that the smoke pipe 18 in the present embodiment employs the threaded flue technology of efficient heat transfer, many
The smoke pipe 18 for walking cigarette is horizontally set in drum 5, and the two ends of smoke pipe 18 are welded on front tube sheet and back tube sheet, and the one of smoke pipe 16
End is connected with front smoke box 61, and the other end of smoke pipe is connected with rear smoke box 62.
Burner hearth 3 is located at 5 bottom of drum, and surrounding is distributed with furnace wall, and furnace wall bottom is placed on base 1, upper support drum 5,
The face arch 31 and rear arch 32 of composition " people " font chimney arch is provided with burner hearth 3, and face arch 31 is located at furnace front, and rear arch 32 is located at stove
Thorax rear portion, the radiation radius of rear arch 32 are more than face arch 31, in the present embodiment, the coverage rate of face arch 31 is 25%, and rear arch 32 covers
Lid rate is 75%, so that anthracite can obtain sufficient preheating time in chimney arch, it is ensured that can not make burner hearth cutoff.
Specifically, as shown in figure 3, burner hearth have adjusted the coverage rate of face arch 31 and rear arch 32 using " people " word arch.Make boiler
The ignition energy of rear arch 32 quickly be flushed to face arch 31, the fire box temperature for reaching boiler is heated up as early as possible.In order to anthracitic thickness
Can be burnt in the case of thicker burning zone after-flame as early as possible, release effective energy, make the combustible object after-flame of boiler thorough
Bottom, reduces the fractional cold of boiler, it is ensured that boiler hearth temperature persistently in the condition of high temperature, reaches the normal heating of boiler.
Additionally, appropriate inclination angle is should ensure that for the lifting for ensureing anthracite ignition temperature, face arch 31 and rear arch 32 with burner hearth,
And angle should not be too big.In the present embodiment, face arch 31 is 40 ° with burner hearth horizontal sextant angle α, and rear arch 32 with burner hearth horizontal sextant angle β is
6°.
Further, how to be longitudinally disposed in burner hearth 3 with the composition convection bank of convection tube 19, in burner hearth 3, be provided with a left side
Header 20 and right header 21, left header 20 and right header 21 are connected with down-comer respectively, and are connected with blow-off pipe by connecting tube 22
Connect, the cold water of boiler rises after being heated by water screen tube after dropping to left header 20 and right header 21 by down-comer.Fire grate 7 is located at
In base 1, it is to be understood that fire grate 7 can select chain or reciprocal grate, because the volatile matters of smokeless clean moulded coal are less
In common two classes bituminous coal, flame value is less.Easily coking, easily closure grate surface, cause air channel gap to block, affect air distribution.Past
Multiple fire grate is constantly stirred in operation upwards, overcomes air quantity blocking in boiler combustion process, air distribution interruption shortage, so as to subtracting
Lack the coking phenomenon of burning, greatly increase boiler thermal output.
For the ease of ventilation, 1 left and right sides of base is provided with shutter, and is provided with aerator and air-introduced machine.Common
The induced draft that two class bituminous coal fired boilers are used is fired, as coal seam thickness is typically in 80～120mm or so.So the drum of boiler draws
Fan pressure, air quantity are all less.Change now the dirts such as nitride, sulfide are reduced using smokeless clean moulded coal plus environmental requirement
The discharge of dye source body, reduces the discharge of high temperature, increases the auxiliary equipment of boiler, and Duster's Power increases, and has one-level dirt device to drill
It is changed into two grades, three-level etc..The resistance of boiler smoke discharge is increased, thus it requires increasing the air quantity and wind of boiler induced draft
Pressure.Therefore, using rational boiler induced draft proportioning, the thorough burning of boiler coal layer can be promoted, the thermal effect of boiler can be improved
Rate.
Preferably, cleaner, such as air inlet fan cleaner unit can be installed on the back-end ductwork of boiler.
Preferably, connect economizer 14 at 62 flue outlet of rear smoke box, economizer 14 and air preheater 23 connect.
The boiler of common two class bituminous coal of burning, volatile matters are larger.Air temperature in boiler furnace is typically at 20 DEG C
?.The fuel volatile matters for firing smokeless clean moulded coal boiler are less, are difficult to light, and the flame that catches fire is very short, and 20 DEG C of cold air exists
In the boiler furnace of more than 2.8MW, it is difficult to facilitate burning, therefore needs to improve entrance air temperature.Improve burner hearth air capacity
Temperature is exactly the exhaust gas temperature using boiler, installs the air preheater of coupling, had so both accomplished the smoke evacuation to airborne release
The reduction of temperature, while reducing the peripheral temperature of air-introduced machine, improves the service life of air-introduced machine.Waste-heat cold air
Temperature is finally boiler using smokeless clean moulded coal can obtain objectively can burning-point.
Further, the outer wall of burner hearth 3 is equipped with secondary air device 24, for air feed in burner hearth 3, boiler reasonable two
The outfit of secondary wind is needed through firing optimization relatively determining, it be ensure to have in boiler furnace good aerodynamic field and
The stability of burning, it is ensured that the basis of safe and economical boiler operation.Therefore, secondary wind speed is typically greater than primary air velocity, ability
The gasification fuel gas for making air produced in burning with smokeless clean moulded coal mixes, and makes anthracite burn completely.But, two
The wind speed of secondary wind can not be excessive, can otherwise cause secondary wind speed to attract primary air velocity, affect the ignition point of smokeless clean moulded coal.
Operation principle of the present utility model is：
The high-temperature flue gas of the generation of the coal after anthracite are lighted under aerator effect, flow forward after having on fire grate 7 flows
Convection bank area to above burner hearth 3, is exchanged heat after entering convection bank area, and the flue gas after cooling enters smoke pipe, completes again
Flowed out by front smoke box 61 after secondary heat exchange, water flows into boiler by water pump via water inlet pipe, water enters into left header, the right side by down-comer
Header and rear set box, and full of water screen tube and convection tube, the water in pipe be heated by the flame in burner hearth after steam water interface
Flow up in drum, to after boiler drum bottom through flowing into header by down-comer, therefore water is in boiler circuit for the low water precipitating of temperature
Middle formation is circulated, and light steam water interface becomes steam after the energy heats of flue floating to drum top, enters steam-water separation
After device, gas is separated with water, and saturated vapor enters working area after being discharged by stop valve.
This utility model is equipped with sufficiently large aerator and air-introduced machine, and for smokeless clean moulded coal, aerator, air-introduced machine will
Than sagitta before and after two common class bituminous coal fired boilers in 30% air quantity, its blast is similar with two common class bituminous coal fired boilers.And
Employ less fractional cold burner hearth, larger convection heating surface, with ensure boiler adapt to smokeless clean moulded coal high heating value,
The characteristic of flame.
As shown in figure 4, the new water-fire pipe of this utility model embodiment two fires smokeless clean moulded coal boiler, with smokeless clean
Moulded coal is illustrated by taking water-fire pipe horizontal reciprocating furnace grate hot-water boiler as an example as fuel, the present embodiment, including：
Base 1 and boiler body, boiler body are placed on base 1, and boiler body includes drum 5 and burner hearth 3, drum 5
Front portion is provided with front smoke box, and rear portion is provided with rear smoke box 62, is provided with many smoke pipes 18, many smoke pipes for walking cigarette inside drum 5
18 are horizontally set in drum 5, and the two ends of smoke pipe 18 are welded on front tube sheet and back tube sheet, and one end of smoke pipe 16 is connected with front smoke box
Logical, the other end of smoke pipe is connected with rear smoke box 62.
Burner hearth 3 is located at 5 bottom of drum, and surrounding is distributed with furnace wall, and furnace wall bottom is placed on base 1, upper support drum 5,
The face arch and rear arch of composition " people " font chimney arch is provided with burner hearth 3, and face arch is located at furnace front, and rear arch is located at burner hearth rear portion,
The radiation radius of rear arch are more than face arch, and in the present embodiment, the coverage rate of face arch is 25%, and the coverage rate of rear arch is 75%, so as to
Make anthracite obtain sufficient preheating time in chimney arch, it is ensured that burner hearth cutoff can not be made.
In the present embodiment, the afterbody of rear smoke box 62 is provided with flue 25, flue 25 connects the flue gas of air preheater 23
Entrance, the exhanst gas outlet connection air-introduced machine of air preheater 23, the air intlet connection aerator 26 of air preheater 23, air
The air outlet slit of preheater 23 connects burner hearth 3 by air channel 27.
The present embodiment installs the air preheater of coupling, has so both accomplished the reduction of the exhaust gas temperature to airborne release,
Reduce the peripheral temperature of air-introduced machine simultaneously, improve the service life of air-introduced machine.Waste-heat air temperature, be finally
Boiler using smokeless clean moulded coal can obtain objectively can burning-point.
As shown in figure 5, the new water-fire pipe of this utility model embodiment three fires smokeless clean moulded coal boiler, with smokeless clean
Used as fuel, the present embodiment is illustrated by taking another water-fire pipe traveling-grate stoker steam boiler as an example moulded coal, including base 1 and boiler
Body, boiler body are placed on base 1, are provided with steelframe backplate 4, and boiler body includes drum 5 and burner hearth 3, the front portion of drum 5
Front smoke box is provided with, rear portion is provided with rear smoke box 62, and the both sides inside drum 5 are respectively arranged with front tube sheet and back tube sheet, middle part
It is provided with water inlet pipe, water separator and Duo Gen smoke pipes 18, it is preferred that the smoke pipe 18 in the present embodiment employs efficient heat transfer
Threaded flue technology, many smoke pipes 18 for walking cigarette are horizontally set in drum 5, the two ends of smoke pipe 18 be welded on front tube sheet and
On back tube sheet, one end of smoke pipe 16 is connected with front smoke box, and the other end of smoke pipe is connected with rear smoke box 62.
Preferably, 62 exit of rear smoke box connection economizer 14, the smoke pipe 18 in the present embodiment employ efficient heat transfer
Threaded flue technology, heat-transfer effect are more preferable.
New water-fire pipe of the present utility model fires smokeless clean moulded coal boiler, makes full use of over non-serviceable anthracite
Main fuel of the fuel as boiler, solves at present due in a large number using high cost caused by the fuel such as natural gas, light diesel fuel
Problem, saves fund, environmental protection reliability.
Preferred embodiment of the present utility model is these are only, not in order to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements that is made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
1. a kind of new water-fire pipe fires smokeless clean moulded coal boiler, using smokeless clean moulded coal as fuel, it is characterised in that bag
Include：Base and boiler body, the boiler body include that drum and burner hearth, the front portion of the drum are provided with front smoke box, rear portion
Rear smoke box is provided with, many smoke pipes is installed inside the drum, the smoke pipe is connected with the front smoke box and rear smoke box respectively,
The burner hearth is located at drum bottom, is provided with the face arch and rear arch of composition " people " font chimney arch in the burner hearth, the rear arch
Swept area is more than the face arch, and the afterbody of the rear smoke box is provided with flue, and the flue connects the flue gas of air preheater
Entrance, the exhanst gas outlet connection air-introduced machine of the air preheater, the air intlet connection aerator of the air preheater, institute
The air outlet slit for stating air preheater connects the burner hearth by air channel.
2. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1, it is characterised in that the face arch with
The swept area ratio of rear arch is 1:3.
3. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1 or 2, it is characterised in that before described
Arch is 40 ° with burner hearth horizontal sextant angle α, and the rear arch is 6 ° with burner hearth horizontal sextant angle β.
4. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1, it is characterised in that in the base
Fire grate is provided with, the fire grate is traveling-grate stoker or reciprocal grate.
5. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1, it is characterised in that the flue is also
It is connected with economizer.
6. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1, it is characterised in that the burner hearth
Outer wall is equipped with secondary air device, for air feed in burner hearth.
7. a kind of new water-fire pipe fires smokeless clean moulded coal boiler as claimed in claim 1, it is characterised in that the smoke pipe is adopted
Threaded flue with efficient heat transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013613.XU CN206018694U (en) | 2016-08-31 | 2016-08-31 | New water-fire pipe fires smokeless clean moulded coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013613.XU CN206018694U (en) | 2016-08-31 | 2016-08-31 | New water-fire pipe fires smokeless clean moulded coal boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206018694U true CN206018694U (en) | 2017-03-15 |
Family
ID=58256294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621013613.XU Expired - Fee Related CN206018694U (en) | 2016-08-31 | 2016-08-31 | New water-fire pipe fires smokeless clean moulded coal boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206018694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853810A (en) * | 2020-08-13 | 2020-10-30 | 江苏利百川环保科技有限公司 | Thermal control type household garbage pyrolysis gasification incinerator |
-
2016
- 2016-08-31 CN CN201621013613.XU patent/CN206018694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853810A (en) * | 2020-08-13 | 2020-10-30 | 江苏利百川环保科技有限公司 | Thermal control type household garbage pyrolysis gasification incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20200831 |