CN203203004U - Horizontal type coal water slurry fired boiler - Google Patents
Horizontal type coal water slurry fired boiler Download PDFInfo
- Publication number
- CN203203004U CN203203004U CN201320071942.XU CN201320071942U CN203203004U CN 203203004 U CN203203004 U CN 203203004U CN 201320071942 U CN201320071942 U CN 201320071942U CN 203203004 U CN203203004 U CN 203203004U
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- boiler
- water
- burner hearth
- drum
- convection
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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
Abstract
本实用新型公开了一种卧式水煤浆锅炉，包括锅炉本体、炉膛燃烧器、稳燃室、空气预热器、省煤器、对流管束、上锅筒、下锅筒、中间集箱、下集箱、上水冷壁、下水冷壁、燃尽室、炉膛出烟口、上下降管和下下降。本实用新型锅炉本体采用双锅筒纵置式水管结构布置，整体结构紧凑、外形布置简单、占地面积小、钢耗低、锅炉水循环压差大和水循环安全可靠、锅炉制造安装简单快捷、锅炉运行可靠、维修简便等优点。同时，锅炉本体分上、下二个大的组件进行制造和安装，有效解决了锅炉运输尺寸限制锅炉容量发展的问题，锅炉制造安装简单快捷。
The utility model discloses a horizontal coal-water slurry boiler, which comprises a boiler body, a furnace burner, a stable combustion chamber, an air preheater, an economizer, a convection tube bundle, an upper drum, a lower drum, an intermediate header, The lower header, the upper water wall, the lower water wall, the burnout chamber, the furnace smoke outlet, the upper and lower pipes and the lower drop. The boiler body of the utility model adopts double-drum vertical water pipe structure arrangement, the overall structure is compact, the appearance layout is simple, the floor area is small, the steel consumption is low, the pressure difference of the boiler water circulation is large, the water circulation is safe and reliable, the boiler manufacturing and installation are simple and fast, and the boiler operation is reliable. , Easy maintenance and so on. At the same time, the boiler body is manufactured and installed in two large components, the upper and the lower, which effectively solves the problem that the boiler transportation size limits the development of the boiler capacity, and the boiler manufacturing and installation is simple and fast.
Description
Technical field
The utility model belongs to the coal-burned industrial boiler field, and being specifically related to a kind of is fuel with various other water-coal-slurry of level, for generation of the two drum longitudinal water-coal-slurry water-tube boilers of two layers of semi-knocked down of steam.
Background technology
The energy resource structure of China is based on coal, and in the following long duration, coal-burned industrial boiler will be the leading products of Industrial Boiler.
Traditional industry coal-boiler is based on grate firing boiler, and shortcoming is that efficiency of combustion is low, and is seriously polluted, is difficult to satisfy energy-saving and emission-reduction and pollutant emission requirement.
Cool water mixture burning is one of high performance clean burning mode of coal, and its efficiency of combustion can reach more than 98%, is the combustion technology of a maturation, is widely used at large-sized station boiler.In recent years, cool water mixture burning also is applied on Industrial Boiler, all adopts the two drum bulk water pipe boiler structures of SHS type, the two self-contained water pipe structures of drum of individual layer SZS or the two drum water pipe structures of D type.But there is certain deficiency:
1) burning is even inadequately, and the front and back temperature difference is bigger, is unfavorable for reducing NO
XContent.
2) load regulation range is little, can only use single other coal water slurry fuel of level.
3) Boiler Ash, slag cleaning inconvenience.
4) boiler steel, furnace wall material consumption are big.
5) floor space big, civil engineering in boiler room is set as high.
6) the boiler seal performance is not good, the brick wall inleakage is big, boiler heat loss big, the air-introduced machine power consumption is big.
7) the two drum bulk water pipe boiler manufacturings of SHS type are installed inconvenient.
Summary of the invention
The utility model provides a kind of novel horizontal coal water slurry boiler at the deficiency of existing bulk water pipe boiler and horizontal coal water slurry boiler.
The utility model is achieved through the following technical solutions: a kind of horizontal coal water slurry boiler, comprise boiler body, burner hearth, burner, stable burning room, air preheater, economizer, convection bank, upper drum, lower drum, middle collection case, next part case, go up water-cooling wall, following water-cooling wall, secondary furnace, burner hearth outlet flue, go up down-comer and following down-comer, it is characterized in that described upper drum has air space and hydrospace, described lower drum is filled with water; Described boiler body comprises upper strata boiler body and lower floor's boiler body, and described next part case and middle collection case are separately positioned on the bottom of lower floor's boiler body and upper strata boiler body, and by described water-cooling wall UNICOM down; Described upper drum and lower drum are separately positioned on the upper and lower of upper strata boiler body, and by described convection bank UNICOM; The collection case is communicated with described upper drum by described upward water-cooling wall and last down-comer in the middle of described; Described burner is arranged on the front wall of described stable burning room; Described down down-comer two ends respectively and described lower drum and down between collection case UNICOM; Described secondary furnace is arranged on described burner hearth outlet flue rear portion; Be furnished with at least two convection channel along row between the rear portion of described secondary furnace and the inlet end of described air preheater, the conducting of connecting about each convection channel, described convection bank are arranged in the described convection channel; The outlet side of described air preheater is connected to described economizer; Described stable burning room is arranged on the front portion of lower floor's boiler body; Described burner is arranged on the front wall of described stable burning room; The bottom of described burner hearth is provided with former and later two burner hearth ash dropping hoppers; Described convection channel bottom is provided with the convection current ash tube.
Horizontal coal water slurry boiler of the present utility model, other water-coal-slurry of various level spray into vertical L shaped burner hearth by the front wall firing device, and simultaneously, the high temperature air after the air preheater heating also enters burner and water-coal-slurry and is mixed into burner hearth and carries out fierce suspension combustion; And in burner hearth, arranged combustion-supporting and denitration secondary wind, in the generation that guarantees effectively to stop the burner hearth coking under the clean-burning prerequisite of uncombusted product and reduce nitrogen oxide.
High-temperature flue gas behind the burner hearth combustion heat-exchange rotates into from the turnover of burner hearth outlet flue and enters secondary furnace, flue gas enters convection bank and carries out heat convection behind after-flame and rough dusting, flue gas enters flue gas purification system after entering air preheater and economizer successively more then.
The utlity model has following advantage:
1) boiler body adopts two drum longitudinal O shape water pipe structures to arrange, compact overall structure, profile are arranged simply, floor space is little, the steel consumption is low, boiler water cycle pressure reduction is big and safe water circulation is reliable, simple and fast is installed in the boiler manufacturing, boiler operatiopn is reliable, and simple and convenient for maintenance.
2) described boiler body comprises upper strata boiler body and lower floor's boiler body, and boiler body divides upper and lower two big assemblies to make and install, and efficiently solves the problem of boiler transportation clearance restriction boiler capacity development, and simple and fast is installed in the boiler manufacturing.
3) but the comprehensive maintain and replace of boiler, the advantage that tool maintenance is easy.
4) boiler water cycle is divided non-interfering several independent system, and water circulation pressure reduction is big, and safe water circulation is reliable.
5) the height district heating surface of going up water screen tube and convection bank is connected with upper drum and inserts drum simultaneously, steam water interface enters upper drum from heating surface, and in upper drum, take place carbonated drink separation, because upper drum carbonated drink space is very big, adding the steam that enters upper drum will carry out separating with two layers of carbonated drink waterborne under water, therefore, the quality of steam is very good, and the vapour pressure of boiler operatiopn simultaneously water level is very steady.
As further improvement of the utility model, described burner is that single or many heat combustors are arranged.The benefit of a plurality of burner arrangement is that each burner can control separately, improves the stability of burning and the adjusting function of load greatly, can use various other coal water slurry fuels of level simultaneously.
Further improve as of the present utility model, described convection channel is 2-3, is equipped with one group of convection bank in each convection channel again.Adopt many backhauls convection bank, and water pipe arranges along row, the heating surface abundance, circulation is reliable, and sweep of gases is smooth and easy, is difficult for dust stratification, prolonged boiler service life.
Further improve as of the present utility model, the described water-cooling wall of going up adopts membrane wall structure again, and the top furnace wall only needs insulation material, integral sealing, good heat insulating, and boiler leaks out few, and the air-introduced machine power consumption is few.Simultaneously, membrane wall structure intensity height, boiler operatiopn is reliable.
Further improve as of the present utility model, described secondary furnace is the subcircular structure that the cyclone dust removal function is arranged again.
Further improve as of the present utility model, described upper furnace is provided with explosion proof door again, and burner hearth sidewall is provided with inspection door.
Further improve as of the present utility model, the grey angle that falls of described burner hearth ash dropping hopper makes ash more smooth and easy greater than rest in peace (angle of angle of repose is 55 degree usually) again.
Further improve as of the present utility model, the left and right sides, described burner hearth middle part is respectively equipped with secondary air channel combustion-supporting and that denitration is used.Adopt grading combustion technology, send into secondary wind in the burner hearth, the temperature field is even in the whole burner hearth, the generation that can guarantee effectively to stop the burner hearth coking under the clean-burning prerequisite of uncombusted product and reduce nitrogen oxide.
Description of drawings
Fig. 1 is the structure chart of the horizontal coal water slurry boiler of the utility model.
Fig. 2 be Fig. 1 A-A to, B-B is to half sectional view.
Fig. 3 is that the C-C of Fig. 1 is to cutaway view.
Among the figure, 1-air preheater, 2-economizer, 3-lower drum, 4-convection bank, the 5-upper drum, 6-secondary furnace, collection case in the middle of the last water-cooling wall of 7-, 8-, water-cooling wall under the 9-, 10-stable burning room, 11-inspection door, 12-burner, 13-next part case, 14-burner hearth ash dropping hopper, 15-mucking machine, 16-convection current ash tube, 17-explosion proof door, 18-burner hearth outlet flue, the last down-comer of 19-, down-comer under the 20-, 21-burner hearth, the 22-secondary air channel, 23-first convection channel, 24-second convection channel, 25-the 3rd convection channel.
The specific embodiment
With reference to accompanying drawing, a kind of horizontal coal water slurry boiler of the present utility model, comprise boiler body, burner hearth 21, burner 12, stable burning room 10, air preheater 1, economizer 2, convection bank 4, upper drum 5, lower drum 3, middle collection case 8, next part case 13, go up water-cooling wall 7, following water-cooling wall 9, secondary furnace 6, burner hearth outlet flue 18, go up down-comer 19 and following down-comer 20, it is characterized in that described upper drum 5 has air space and hydrospace, described lower drum 3 is filled with water; Described boiler body comprises upper strata boiler body and lower floor's boiler body, and described next part case 13 and middle collection case 8 are separately positioned on the bottom of lower floor's boiler body and upper strata boiler body, and by described water-cooling wall 9 UNICOMs down; Described upper drum 5 and lower drum 3 are separately positioned on the upper and lower of upper strata boiler body, and by described convection bank 4 UNICOMs; Collection case 8 is communicated with described upper drum 5 by described upward water-cooling wall 7 and last down-comer 19 in the middle of described; Described burner 13 is arranged on the front wall of described stable burning room 10; Described down down-comer 20 two ends respectively and described lower drum 3 and down between collection case 13 UNICOMs; Described secondary furnace 6 is arranged on described burner hearth outlet flue 18 rear portions; Be furnished with at least three convection channel along row between the inlet end of the rear portion of described secondary furnace 6 and described air preheater 1, the conducting of connecting about each convection channel, described convection bank 4 are arranged in described each convection channel 5; The outlet side of described air preheater 1 is connected to described economizer 2; Described stable burning room 10 is arranged on the front portion of lower floor's boiler body; Described burner 12 is arranged on the front wall of described stable burning room 10; The bottom of described burner hearth 21 is provided with former and later two burner hearth ash dropping hoppers 14; Described convection channel 23 bottoms are provided with convection current ash tube 16, and lime-ash focuses on mucking machine 15 automatically.
Described convection channel is 3, first convection channel 23, second convection channel 24 and the 3rd convection channel 25 of arranging along row before and after comprising.The rear portion UNICOM of the left side of described first convection channel 23 and described secondary furnace 6, the right side UNICOM of right side and second convection channel 24; The left side UNICOM of the left side of second convection channel 24 and the 3rd convection channel 25; The inlet end UNICOM of the right side of the 3rd convection channel 25 and described air preheater 1, thus horizontal circuitous convection channel formed.Be equipped with one group of convection bank 4 in each convection channel.
The described water-cooling wall 7 of going up adopts film water cold wall structure.Described secondary furnace 6 is the subcircular structure.Described burner hearth 21 tops are provided with explosion proof door 17, and burner hearth 21 sidewalls are provided with inspection door 11.The left and right sides, described burner hearth 21 middle part is respectively equipped with secondary air channel 22 combustion-supporting and that denitration is used.The open-angle of described burner hearth ash dropping hopper 14 is greater than angle of repose.
Operation principle of the present utility model is as follows:
Water-coal-slurry at different levels spray into vertical L shaped burner hearth 21 by the single or multiple burners 12 in front, and simultaneously, the water-coal-slurry after the high temperature air after air preheater 1 heating also enters burner 12 and atomizes is mixed into burner hearth 21 and carries out fierce suspension combustion; And in burner hearth, arranged combustion-supporting denitration secondary wind, made burner hearth that sufficient oxygen and fuel reaction burning be arranged, in the generation that guarantees effectively to stop the burner hearth coking under the clean-burning prerequisite of uncombusted product and reduce nitrogen oxide.Rotate into secondary furnace 6 at the high-temperature flue gas behind the burner hearth combustion heat-exchange from the burner hearth outlet flue 18 above the burner hearth 21, enter convection channel through the afterburnt, and carrying out heat exchange by convection bank 4, flue gas enters flue gas purification system after entering air preheater 1 and economizer 2 more successively.In flue gas purification system, the solid particle in the flue gas is eliminated.Clean preheated air sprays into vertical furnace chamber 21 again from single or multiple burners 12.Economizer 2 and air preheater 1 can utilize the waste heat of flue gas that preheating is carried out in boiler feedwater and air, thereby reach recycling and purpose of energy saving after the waste heat recovery.
Upper drum 5, convection bank 4, lower drum 3, middle collection case 8, next part case 13, go up water-cooling wall 7, water-cooling wall 9 and 2 go up the water circulation systems that down-comer 19,6 following down-comers 20 constitute sealing down.Lower drum 3 is connected with upper drum 5 usefulness convection banks 4, and steam water interface enters upper drum 5 from the high-temperature surface rising of convection bank 4; At present collection case 8 in the middle of water-cooling wall 9 interior steam water interfaces enter owing to being heated together enters water-cooling wall 7 by centre collection case 8 again, and the hydrospace from upper drum 5 after steam water interfaces are heated in the last water-cooling wall 7 enters in the drum; All take place inside at upper drum 5 carbonated drink separation in above-mentioned two-way steam water interface.Because the carbonated drink space of upper drum 5 is all very big, thus very steady during the operation of the vapour pressure water level of boiler, steam-water separation effect is good, and steam quality is good.Water after 5 li carbonated drinks of upper drum are separated drops to lower drum 3 from the convection bank 4 of low cigarette temperature, and passes through down-comer 20 inflow next part casees 13 down, enters down in the water-cooling wall 9 again, forms the water circulation.
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 innovation and creation that do not exceed in the utility model connotation scope all fall within the protection domain of the present utility model.
Claims (8)
1. horizontal coal water slurry boiler, comprise boiler body, burner hearth (21), burner (12), stable burning room (10), air preheater (1), economizer (2), convection bank (4), upper drum (5), lower drum (3), middle collection case (8), next part case (13), go up water-cooling wall (7), following water-cooling wall (9), secondary furnace (6), burner hearth outlet flue (18), go up down-comer (19) and following down-comer (20), it is characterized in that described upper drum (5) has air space and hydrospace, described lower drum (3) is filled with water; Described boiler body comprises upper strata boiler body and lower floor's boiler body, and described next part case (13) and middle collection case (8) are separately positioned on the bottom of lower floor's boiler body and upper strata boiler body, and by described water-cooling wall (9) UNICOM down; Described upper drum (5) and lower drum (3) are separately positioned on the upper and lower of upper strata boiler body, and by described convection bank (4) UNICOM; Collection case (8) is communicated with described upper drum (5) by described upward water-cooling wall (7) and last down-comer (19) in the middle of described; Described burner (13) is arranged on the front wall of described stable burning room (10); Described down down-comer (20) two ends respectively and described lower drum (3) and down between collect case (13) UNICOM; Described secondary furnace (6) is arranged on described burner hearth outlet flue (18) rear portion; Be furnished with at least two convection channel along row between the inlet end of the rear portion of described secondary furnace (6) and described air preheater (1), the conducting of connecting about each convection channel, described convection bank (4) is arranged in the described convection channel; The outlet side of described air preheater (1) is connected to described economizer (2); Described stable burning room (10) is arranged on the front portion of lower floor's boiler body; Described burner (12) is arranged on the front wall of described stable burning room (10); The bottom of described burner hearth (21) is provided with former and later two burner hearth ash dropping hoppers (14); Described convection channel bottom is provided with convection current ash tube (16).
2. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that described burner (12) quantity is single or multiple layouts.
3. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that described convection channel is 2-3, is equipped with one group of convection bank (4) in each convection channel.
4. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that the described water-cooling wall (7) of going up adopts film water cold wall structure.
5. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that described secondary furnace (6) is the subcircular structure.
6. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that described burner hearth (21) top is provided with explosion proof door (17), and burner hearth (21) sidewall is provided with inspection door (11).
7. a kind of horizontal coal water slurry boiler as claimed in claim 1 is characterized in that the grey angle that falls of described burner hearth ash dropping hopper (14) is greater than angle of repose.
8. as any one described a kind of horizontal coal water slurry boiler of claim 1-7, it is characterized in that the left and right sides, described burner hearth (21) middle part is respectively equipped with secondary air channel (22) combustion-supporting and that denitration is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320071942.XU CN203203004U (en) | 2013-02-07 | 2013-02-07 | Horizontal type coal water slurry fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320071942.XU CN203203004U (en) | 2013-02-07 | 2013-02-07 | Horizontal type coal water slurry fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203004U true CN203203004U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320071942.XU Expired - Fee Related CN203203004U (en) | 2013-02-07 | 2013-02-07 | Horizontal type coal water slurry fired boiler |
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| CN (1) | CN203203004U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588103A (en) * | 2016-02-22 | 2016-05-18 | 大震锅炉工业（昆山）有限公司 | Boiler based on coal water slurry high-efficiency combustion technique |
| CN107152672A (en) * | 2017-05-05 | 2017-09-12 | 张家港格林沙洲锅炉有限公司 | Low NOXDouble drum gas fired-boilers |
| CN107489996A (en) * | 2017-04-13 | 2017-12-19 | 青岛全能节能环保锅炉有限公司 | Coal dust and lack of gas hybrid power bimedia boiler |
| CN108361725A (en) * | 2018-03-26 | 2018-08-03 | 宜兴市清泰净化剂有限公司 | A kind of energy-saving boiler system |
| CN112815233A (en) * | 2021-01-08 | 2021-05-18 | 黄守超 | Water circulation device |
-
2013
- 2013-02-07 CN CN201320071942.XU patent/CN203203004U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588103A (en) * | 2016-02-22 | 2016-05-18 | 大震锅炉工业（昆山）有限公司 | Boiler based on coal water slurry high-efficiency combustion technique |
| CN107489996A (en) * | 2017-04-13 | 2017-12-19 | 青岛全能节能环保锅炉有限公司 | Coal dust and lack of gas hybrid power bimedia boiler |
| CN107489996B (en) * | 2017-04-13 | 2023-06-27 | 青岛全能节能环保锅炉有限公司 | Coal powder and exhaust gas mixed power double-medium boiler |
| CN107152672A (en) * | 2017-05-05 | 2017-09-12 | 张家港格林沙洲锅炉有限公司 | Low NOXDouble drum gas fired-boilers |
| CN108361725A (en) * | 2018-03-26 | 2018-08-03 | 宜兴市清泰净化剂有限公司 | A kind of energy-saving boiler system |
| CN112815233A (en) * | 2021-01-08 | 2021-05-18 | 黄守超 | Water circulation device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 311115 Pingyao Town, Yuhang District of Guangzhou Road No. 1 Patentee after: HANGZHOU JUNENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: Hangzhou City, Zhejiang province 311115 Pingyao Town, Yuhang District of Guangzhou Road No. 1 Patentee before: HANGZHOU JUNENG BOILER Co.,Ltd. |
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| 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: 20130918 Termination date: 20220207 |