CN201561415U - Steam boiler - Google Patents
Steam boiler Download PDFInfo
- Publication number
- CN201561415U CN201561415U CN2009202689901U CN200920268990U CN201561415U CN 201561415 U CN201561415 U CN 201561415U CN 2009202689901 U CN2009202689901 U CN 2009202689901U CN 200920268990 U CN200920268990 U CN 200920268990U CN 201561415 U CN201561415 U CN 201561415U
- Authority
- CN
- China
- Prior art keywords
- boiler
- steam boiler
- precombustion chamber
- coal fines
- ultra
- 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
- 239000003245 coal Substances 0.000 claims abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 17
- 239000003546 flue gas Substances 0.000 claims description 17
- 239000000779 smoke Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 14
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The embodiment of the utility model discloses a steam boiler, comprising a precombustion chamber, wherein the combustible component of the steam boiler is ultra-thin coal fines. The finess of the afterburn furnace dust is higher after burning the ultra-thin coal fines. Most of the furnace dust is sucked by a suction fan along with the disturbance of the fume, thus a slag runner and a slag remover are not arranged at the bottom of the boiler main body to simplify the installation technology of the boiler and greatly reduce the installation and construction cost of the boiler and the slag remover is omitted to reduce the initial investment of the device and simplify the operation and maintenance work of the boiler; in addition, the power consumption of the slag remover is subtracted from the whole power consumption of the boiler and the production operation cost is saved. In addition, no heat exchange tube beam is arranged in the precombustion chamber, therefore higher temperature is kept and the volatile powder of the coal fines is quickly separated and then take fire to completely combust and the ultra-thin coal fines ensure the fuel burn-out rate and the heat efficiency of the boiler is fundamentally increased.
Description
Technical field
The utility model relates to boiler manufacturing technology field, more particularly, relates to a kind of steam boiler.
Background technology
Occupation rate popular on the present domestic market is the highest, thermal power at the coal-fired steam boiler of 1.4MW-30MW with traveling-grate stoker formula steam boiler, traveling-grate stoker formula steam boiler is widelyd popularize at home and performance is advanced belongs to QXL type series of products, structure comprises the parcel shell, the flag style tube row group on top, water-cooling wall, drum and bottom burner, coal-burning installation comprises coaling gear, traveling-grate stoker, trimmer arch and stove rear arch, constitute front furnace between trimmer arch and the traveling-grate stoker, constitute rear hearth between stove rear arch and the traveling-grate stoker, the outlet of combustion heat gas is arranged between trimmer arch and the stove rear arch, it is the advanced technology that China introduces from Italy, convection tube in " pot " adopts advanced corner tube type, convection heating surface all adopts " flag style tube row " structure, adopt the current forced circulation, very high heat transfer coefficient is arranged, thermal power 2.8MW-30MW, typing drawing and manufacturing inspection standard that individual cauldron factory all has national Ministry of Labour to issue.But this layout of being heated tube bank has seriously hindered the smooth discharge of ashes, is that a large amount of ashes stockpile in the stove, and the transmission of heat that not only greatly reduced the also serious obstruction of the security and stability of boiler operatiopn has reduced the thermal efficiency of boiler.
What boiler adopted on the structure of " stove " is traditional " traveling-grate stoker formula " structure.Be called for short " chain-arranged type ", this structure makes not only that boiler volume is huge, operations staff's working strength height, and fails to solve the dust stratification problem all the time.Because the existence of the problems referred to above, seriously restricted the thermal efficiency of its actual motion to a great extent, the energy waste that existence in service is very big, the thermal efficiency is low.
The utility model content
In view of this, the utility model provides a kind of steam boiler, to reduce the volume of boiler, reduces cost, and improves the thermal efficiency.
For achieving the above object, the utility model provides following technical scheme:
A kind of have a steam boiler, comprises precombustion chamber, and described precombustion chamber is arranged on the front portion of described boiler furnace, and the incendiary agent of described steam boiler is a microfine coal.
Preferably, above-mentioned steam boiler, described both sides boiler setting is provided with a plurality of fire doors.
Preferably, above-mentioned steam boiler also comprises two ash-removing mouths, and described ash-removing mouth is arranged on two or the three backhauls bottom that flue gas resistance is bigger in the described boiler.
Preferably, above-mentioned steam boiler is provided with smoke guide wall and burner interface in the described secondary furnace.
Preferably, above-mentioned steam boiler also comprises economizer and air preheater in the flue that is arranged on behind the described boiler flue gas outlet.
From above-mentioned technical scheme as can be seen, among the utility model embodiment by using microfine coal, the fineness of afterburnt ashes will be higher, most ashes follow the disturbance of flue gas to be siphoned away by air-introduced machine, few a part of ashes of sedimentation are raked off by fire door by the operations staff and are got final product in burner hearth, so the bottom of boiler body no longer is provided with ash pit and slag remover, simplified the mounting process of boiler, greatly reduce the boiler erection operating expenses, and saved slag remover, reduced the initial investment of equipment, the operation and the service work of boiler have been simplified, in addition, the power consumption of slag remover is also deducted from the whole power consumption of boiler, has saved the production run cost.In addition, owing to do not establish heat-exchanging tube bundle in the precombustion chamber, thereby keep higher temperature, the volatilization powder of pulverized coal particle is separated out rapidly, immediately the fully burning of fighting, microfine coal has guaranteed the burn-off rate of fuel, has fundamentally improved the thermal efficiency of boiler.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of steam boiler structural representation that the utility model embodiment provides;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of steam boiler,, reduce cost, and improve the thermal efficiency to reduce the volume of boiler.
The basic thought that the utility model solves the problems of the technologies described above is: by using microfine coal, the fineness of afterburnt ashes will be higher, most ashes follow the disturbance of flue gas to be siphoned away by air-introduced machine, few a part of ashes of sedimentation are raked off by fire door by the operations staff and are got final product in burner hearth, so the bottom of boiler body no longer is provided with ash pit and slag remover, simplified the mounting process of boiler, greatly reduce the boiler erection operating expenses, and saved slag remover, reduce the initial investment of equipment, simplified the operation and the service work of boiler, in addition, the power consumption of slag remover is also deducted from the whole power consumption of boiler, has saved the production run cost.In addition, owing to do not establish heat-exchanging tube bundle in the precombustion chamber, thereby keep higher temperature, the volatilization powder of pulverized coal particle is separated out rapidly, immediately the fully burning of fighting, microfine coal has guaranteed the burn-off rate of fuel, has fundamentally improved the thermal efficiency of boiler.
See also Fig. 1, Fig. 2 and Fig. 3, Fig. 1 are a kind of steam boiler structural representations that the utility model embodiment provides, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the vertical view of Fig. 1.
1 is the vertical upper drum of putting, and 2 is to indulge to deposit drum, and 3 is smoke guide wall, 4 is precombustion chamber, and 5 is horizontal next part case, and 6 is horizontal next part case, 7 is horizontal next part case, and 8 is the burner interface, and 9 is the boiler body basis, 10 is economizer, and 11 for arranging a secondary valve surely, and 12 are convection bank, 13 is second backhaul, and 14 is the 3rd backhaul, and 15 is fire door, 16 are the vertical collection case that deposits, 17 is horizontal collection case, and 18 is horizontal upper collecting chamber, and 19 is explosion proof door, 20 is the boiler interior wall, 21 is side water wall, and 22 is rear water wall, and 23 is that mouth is advanced in second backhaul, 24 is furnace wall, and 25 is exhanst gas outlet.
A kind of steam boiler, this boiler includes vertical upper drum, lower drum, vertical collection case, the horizontal collection case put, water screen tube, formations such as convection bank, the upper end of tedge is communicated with the lower end of longitudinal upper drum 1, its lower end is communicated with the vertical top that deposits drum 2, and the upper end of convection bank 12 is communicated with little pressure-bearing type collection lower box part, and its lower end is communicated with little pressure-bearing type collection upper box part.
There are two grate furnace walls 24 boiler body inside, high-temperature flue gas in the boiler is separated into three backhauls, furnace front is not provided with water screen tube, at the several pipe layings of burner hearth front end right side (from the fuel inlet direction) row cloth, this zone is a precombustion chamber 4, is characterized in three backhauls that furnace wall is divided into, and has prolonged the RT of high-temperature flue gas in stove, enhanced heat exchange, thus boiler thermal output improved.The caloric receptivity that precombustion chamber has reduced water-cooling wall being set, keeping desirable fire box temperature, is that the coal dust that enters in the stove is separated out the volatilization powder faster, fire burns, play the effect of defending combustion, it is unlikely too high that several pipe layings then play the temperature of controlling secondary furnace, causes high-temperature coking.
The burner hearth postmedian is provided with water screen tube and many rows convection bank 12, this regional convection bank 12 is communicated with the bottom of the horizontal upper collecting chamber 18 of boiler, the horizontal upper collecting chamber of boiler 18 is put upper drum 1 kernel of section line and just is communicated with on the lower side with indulging near a vertical end of putting upper drum 1, postmedian in burner hearth first backhaul is provided with three row's smoke guide walls 3, first comes precombustion chamber 4 tail ends, second row's smoke guide wall, 3 dresses are hung in the boiler top, the bottom is unsettled, the 3rd comes the place ahead that mouth 23 is advanced in flue gas second backhaul, be provided with one group of pipe laying in the 3rd row's smoke guide wall, the pipe laying upper end is communicated with horizontal upper collecting chamber 18, the lower end is communicated with horizontal next part case, is characterized in changing after smoke guide wall is set the trend of high-temperature flue gas in the boiler, the high-temperature flue gas disturbance aggravation in the stove, can play the effect of enhanced heat exchange, thereby improve the overall thermal efficient of boiler.
Brick baffle is divided into the convection bank of gathering in second, third backhaul that high-temperature flue gas flows in boiler body, convection bank upper end in second, third backhaul is communicated with vertical bottom of putting upper drum, the lower end is communicated with the vertical top that deposits drum, be characterized in that the convection bank of gathering can increase the heat exchange area of flue gas and heating surface in second, third backhaul, effectively lowering the exhaust gas temperature of boiler, is that the overall thermal efficient of boiler improves a lot.
Be equiped with economizer and air preheater at the later flue of boiler flue gas outlet, the economizer import is connected with the feed pump outlet, outlet is connected with the top of boiler longitudinal upper drum, air preheater is connected with the outlet of air blast as empty, its outlet connects boiler body, it is combustion-supporting that the hot blast of process air preheater directly advances burner hearth, after being characterized in having installed economizer and air preheater in the boiler flue, heat with feedwater and the needed absorption of air flue gas of boiler combustion, thereby reduced the heat loss due to exhaust gas of boiler, further improved the thermal efficiency of boiler.
Because what boiler used is microfine coal, the fineness of afterburnt ashes will be higher, most ashes follow the disturbance of flue gas to be siphoned away by air-introduced machine, few a part of ashes of sedimentation are raked off by fire door by the operations staff and are got final product in burner hearth, so the bottom of boiler body no longer is provided with ash pit and slag remover, and have several fire doors at left and right sides furnace wall, be characterized in simplifying the mounting process of boiler, greatly reduce the boiler erection operating expenses, and saved slag remover, reduced the initial investment of equipment, the operation and the service work of boiler have been simplified, in addition, the power consumption of slag remover is also deducted from the whole power consumption of boiler, has saved the production run cost.
Microfine coal is by the precombustion chamber of burner spray as furnace front, keep higher temperature owing to do not establish water screen tube in the precombustion chamber, the fugitive constituent of pulverized coal particle is separated out rapidly, immediately the fully burning of fighting, ultra-fine coal dust has guaranteed the burn-off rate of fuel, has fundamentally improved the thermal efficiency of boiler.The utility model has mated economizer and air preheater, supply with a hot blast on the one hand and improve combustion intensity, reduce the phosphorus content of coal dust, economizer and air preheater reduce exhaust gas temperature to the absorption of tail flue gas heat, stop low temperature junction leakage and electric leakage corrosion, improved the physical life of boiler.Adopt rational combustion space and precombustion chamber, guarantee the abundant burning and the radiation heat transfer of coal dust, heat convection is strengthened in densely covered convection bank.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. a steam boiler is characterized in that, comprises precombustion chamber, and described precombustion chamber is arranged on the front portion of described boiler furnace, and this steam boiler is the steam boiler of burning microfine coal.
2. steam boiler as claimed in claim 1 is characterized in that, described both sides boiler setting is provided with a plurality of fire doors.
3. steam boiler as claimed in claim 1 is characterized in that, also comprises two ash-removing mouths, and described ash-removing mouth is arranged on two or the three backhauls bottom that flue gas resistance is bigger in the described boiler.
4. steam boiler as claimed in claim 1 is characterized in that, is provided with smoke guide wall and burner interface in the described precombustion chamber.
5. steam boiler as claimed in claim 1 is characterized in that, also comprises economizer and air preheater in the flue that is arranged on behind the described boiler flue gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202689901U CN201561415U (en) | 2009-10-28 | 2009-10-28 | Steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202689901U CN201561415U (en) | 2009-10-28 | 2009-10-28 | Steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561415U true CN201561415U (en) | 2010-08-25 |
Family
ID=42626561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202689901U Expired - Lifetime CN201561415U (en) | 2009-10-28 | 2009-10-28 | Steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561415U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679303A (en) * | 2012-05-17 | 2012-09-19 | 仲伟军 | Horizontal dual-drum energy-efficient boiler without fireproofing-material furnace-building process |
| CN104100961A (en) * | 2014-07-25 | 2014-10-15 | 仲伟军 | Horizontal coal-fired and biomass-fired chain boiler |
| CN105987380A (en) * | 2015-03-02 | 2016-10-05 | 上海谊快能源技术有限公司 | Rapid combustion type industrial powder combustion system |
-
2009
- 2009-10-28 CN CN2009202689901U patent/CN201561415U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679303A (en) * | 2012-05-17 | 2012-09-19 | 仲伟军 | Horizontal dual-drum energy-efficient boiler without fireproofing-material furnace-building process |
| CN102679303B (en) * | 2012-05-17 | 2014-04-02 | 仲伟军 | Horizontal dual-drum energy-efficient boiler without fireproofing-material furnace-building process |
| CN104100961A (en) * | 2014-07-25 | 2014-10-15 | 仲伟军 | Horizontal coal-fired and biomass-fired chain boiler |
| CN105987380A (en) * | 2015-03-02 | 2016-10-05 | 上海谊快能源技术有限公司 | Rapid combustion type industrial powder combustion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201688552U (en) | Assembled water tube boiler by burning biomass | |
| CN202747317U (en) | Biomass fuel burning fuel boiler | |
| CN204693377U (en) | High-moisture biomass fuel boiler | |
| CN202109645U (en) | Biomass particle semi-gasification water heating boiler with reciprocating fire grate | |
| CN104595892B (en) | Improve the ejection grading combustion W flame boiler of coal powder ignition burning | |
| CN108105757A (en) | A kind of novel anti-coking intelligent and high-efficiency type biomass heating furnace | |
| CN205717165U (en) | A kind of high-efficiency energy-saving biomass boiler | |
| CN201527100U (en) | Organic heat carrier boiler | |
| CN201561415U (en) | Steam boiler | |
| CN204345615U (en) | Biomass chain boiler row boiler heating system | |
| CN210801146U (en) | Biomass gasification self-dedusting boiler | |
| CN218936328U (en) | Biomass boiler transformed from coal-fired chain boiler | |
| CN207750966U (en) | A kind of new combustion chaff-fired boiler | |
| CN201150249Y (en) | Entirety intensive type molded coal cured tobacco stove | |
| CN206626606U (en) | A kind of biomass bundling fuel chain-grate boiler furnace arch structure | |
| CN102818247B (en) | Efficient steam boiler for gasification and combined combustion of pulverized coal | |
| CN103322545B (en) | Large-scale multi fuel furnace grate | |
| CN202546736U (en) | Bagasse pith and pulverized coal fired boiler | |
| CN202328186U (en) | Powdered coal boiler combusting device | |
| CN201532004U (en) | Hot-water boiler | |
| CN202040835U (en) | Biomass hot water boiler and hearth thereof | |
| CN201074840Y (en) | Horizontal water-fire pipe dual-fire-grate inverse-burning boiler | |
| CN203203244U (en) | Horizontal type coal water slurry organic heat carrier boiler | |
| CN201047587Y (en) | Triple barrel electric heating steam boiler taking stalk as fuel | |
| CN209541168U (en) | Coal dust organic heat carrier furnace in bulk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yanan City, Shandong province Qingdao City Road 266314 No. 39 Patentee after: Qingdao Clear Environmental Protection Boiler Engineering Co., Ltd. Address before: Yanan City, Shandong province Qingdao City Road 266314 No. 39 Patentee before: Qingdao Clear Environmental Protection Boiler Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |