CN202253554U - Boiler for heat power station - Google Patents
Boiler for heat power station Download PDFInfo
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- CN202253554U CN202253554U CN2011202730922U CN201120273092U CN202253554U CN 202253554 U CN202253554 U CN 202253554U CN 2011202730922 U CN2011202730922 U CN 2011202730922U CN 201120273092 U CN201120273092 U CN 201120273092U CN 202253554 U CN202253554 U CN 202253554U
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- boiler
- horizontal segment
- power station
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- heat power
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Abstract
The utility model discloses a boiler for a heat power station, belonging to the field of boilers. The boiler for the heat power station, disclosed by the utility model, comprises a furnace hearth, a horizontal section and a tail section, wherein the lower part of the furnace hearth is connected with the horizontal section, the tail section is connected onto the horizontal section, and the top of the tail section is communicated with the furnace hearth through a flue gas pipeline. The boiler for the heat power station, disclosed by the utility model, has the advantages that: the structure is simple, a high-temperature steam connection pipeline is short, so that the steam temperature can be effectively adjusted, and the characteristics of low heat loss, high effective utilization rate and high power generation efficiency are achieved; the length of the high-temperature steam connection pipeline between the boiler and a turbine can be obviously reduced, so that the length and the usage amount of high-grade, thick-wall and large-caliber materials are reduced; and the cost is reduced, the resistance loss of the pipelines is reduced, the power generation efficiency is promoted and the popularization and application of the boiler are facilitated.
Description
Technical field
The utility model relates to a kind of boiler, the boiler that uses in particularly a kind of heat power station.
Background technology
In the thermal power generation unit, the steam that boiler produces need connect pipeline with high-temperature steam and be connected to the steam turbine inlet, because vapor (steam) temperature and pressure are all higher, therefore selected connection pipeline is high with the material grade, and unit price is expensive, makes cost increase.At present, the high-temperature surface of boiler is arranged in upper furnace, and steam (vapor) outlet generally is arranged in roof of the furnace; Near 70 meters absolute altitudes, and the steam turbine steam inlet is generally near 17 meters absolute altitudes, and the steam connection tube road is long; Make that the construction cost of power plant is expensive, and, make that steam temperature and pressure loss in pipeline is bigger because the length of pipeline is longer; The energy that finally enters into steam turbine reduces, and generating efficiency reduces.
The utility model content
The goal of the invention of the utility model is: the problem to above-mentioned existence, provide a kind of simple in structure, and it is short that high-temperature steam connects pipeline; Effective steam regulation temperature, heat loss is little, and effective rate of utilization is high; The boiler that is used for heat power station that generating efficiency is high uses this boiler, can significantly reduce the length that high-temperature steam between boiler and steam turbine is connected pipeline; The length and the consumption of high-grade, heavy wall, heavy caliber material have been practiced thrift; Reduce cost, also reduced resistance of ducting loss, promoted generating efficiency.
The technical scheme that the utility model adopts is following:
The boiler that is used for heat power station of the utility model comprises burner hearth, horizontal segment and end segment, and the bottom of said burner hearth is connected with horizontal segment, is connected with end segment on the said horizontal segment, and the top of said end segment is communicated with burner hearth through flue.
Owing to adopted said structure; Fuel and air form flue gas in the burner hearth internal combustion, enter into horizontal segment from its underpart again, in horizontal segment, are furnished with high-temperature surface; Flue gas arrives needed temperature with the Steam Heating in the high-temperature surface; Form high-temperature steam, high-temperature steam gets into steam turbine through connecting pipeline, and pushing turbine rotates generating.Flue gas enters into end segment through behind the horizontal segment.Gentle low temperature heating surface during end segment is furnished with, flue gas these heating surfaces of flowing through are emitted heat.The boiler that is used for heat power station of the utility model can reduce the difference in height of Boiler Steam outlet and steam turbine steam inlet effectively, has practiced thrift the length and the consumption of high-grade, heavy wall, heavy caliber material, has reduced cost.Simultaneously,, also reduced resistance of ducting loss, promoted generating efficiency owing to reduced duct length.
The boiler that is used for heat power station of the utility model, the bottom of said burner hearth is provided with the outlet smokestack, and the bottom of end segment is provided with the import smokestack, and the two ends of said horizontal segment are communicated with outlet smokestack and import smokestack respectively.
Owing to adopted said structure; Be communicated with through the outlet smokestack between horizontal segment and the burner hearth; Make the flue gas in the burner hearth to enter in the horizontal segment through the outlet smokestack, in horizontal segment, carry out heat transmission after, enter in the end segment through the import smokestack that is provided with on the end segment; Make between burner hearth, horizontal segment and the end segment UNICOM each other; Thereby reduced the difference in height of Boiler Steam outlet and steam turbine steam inlet effectively, practiced thrift length and the consumption of high-grade, heavy wall, heavy caliber material, reduced cost.
The boiler that is used for heat power station of the utility model, said burner hearth mainly are made up of conical top, straight section portion and taper furnace hopper, and the top of said straight section portion is provided with burner, and the bottom of said straight section portion is provided with the outlet smokestack.
Owing to adopted said structure; Fuel and air spray in the burner hearth through burner and burn, and produce flue gas, and the outer lower portion through straight section portion is provided with the outlet smokestack and enters in the horizontal segment; Burner hearth is surrounded by water-cooling wall, and the big slag of in burner hearth, producing is discharged from the taper furnace hopper.
The boiler that is used for heat power station of the utility model is furnished with high-temperature surface in horizontal segment, be provided with steam (vapor) outlet collection case around the said horizontal segment.
Owing to adopted said structure; High-temperature surface is set in horizontal segment, and around horizontal segment, steam (vapor) outlet collection case is set, make flue gas through after burner hearth enters horizontal segment; Contact with high-temperature surface; The temperature that makes steam in the high-temperature surface be heated to requirement enters into steam (vapor) outlet collection case, and the absolute altitude of said high-temperature steam outlet collection case has reduced the difference in height of Boiler Steam outlet and steam turbine steam inlet effectively near steam turbine steam inlet absolute altitude; Practice thrift the length and the consumption of high-grade, heavy wall, heavy caliber material, reduced cost.Simultaneously can reduce the duct length between boiler and the steam turbine, reduce resistance of ducting loss, promote generating efficiency.
The boiler that is used for heat power station of the utility model, warm heating surface and low temperature heating surface in being provided with in the said end segment, the top of said end segment is connected with flue, and said flue is provided with blower fan.
Owing to adopted said structure; Warm heating surface and low temperature heating surface in end segment, being provided with, flue gas are through horizontal segment, behind high-temperature surface transmission heat; Flue gas gets into end segment after leaving horizontal segment; In end segment, upwards flow, flowing through respectively is arranged in middle temperature heating surface and the low temperature heating surface in the end segment, and it is transmitted heat.Part flows out the flue gas of low temperature heating surface through recirculation blower and flue gas recirculation pipeline; Send into from the top of burner hearth; Be used to regulate under various operating modes, the flow through exhaust gas volumn of burner hearth, horizontal segment and end segment of boiler; And then the variation through exhaust gas volumn regulates the caloric receptivity of each heating surface in burner hearth, horizontal segment and the end segment, guarantees that outlet steam temperature keeps stable in sizable load range, the generating efficiency of lifting unit.。
The boiler that is used for heat power station of the utility model; Said horizontal segment is horizontal segment gas approach zone near outlet smokestack place; Said horizontal segment is horizontal segment exhanst gas outlet zone near import smokestack place, and said horizontal segment gas approach zone all is the slope form to the two ends of horizontal segment with horizontal segment exhanst gas outlet zone.
Owing to adopted said structure; Be set to the slope form in the import of horizontal segment and the zone in exit, and the big end on this slope is towards the horizontal segment two ends, the cigarette ash that makes flue gas in horizontal segment gas approach zone and horizontal segment exhanst gas outlet zone, form can be along the slope; Slip into respectively in burner hearth and the end segment; Avoid cigarette ash to stop up with outlet, thereby guarantee that horizontal segment is unimpeded, make whole boiler normally move in the import of horizontal segment.
The boiler that is used for heat power station of the utility model, the bottom of said end segment is provided with ash bucket.
Owing to adopted said structure; Bottom in end segment is provided with ash bucket, makes flue gas flying dust under separated in end segment discharge from ash bucket, avoids stopping up in the end segment; Alleviated the wearing and tearing of flying dust, guaranteed the security of operation of whole cooker furnace system the end segment internal heating surface.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the boiler that is used for heat power station of the utility model is simple in structure, and high-temperature steam tube connector track pitch is from short, and heat loss is low, and effective rate of utilization is high, and generating efficiency is high;
2. the boiler that is used for heat power station of the utility model can significantly reduce the length that high-temperature steam between boiler and steam turbine is connected pipeline, has practiced thrift the length and the consumption of high-grade, heavy wall, heavy caliber material;
3. the boiler that is used for heat power station of the utility model has reduced cost, has also reduced resistance of ducting loss, has promoted generating efficiency, is beneficial to and applies.
Description of drawings
Fig. 1 is the structural representation of the boiler that is used for heat power station of the utility model.
Mark among the figure: warm heating surface, 6-end segment, 7-import smokestack, 8-ash bucket, 9-horizontal segment exhanst gas outlet zone, 10-horizontal segment, 11-high-temperature surface, 12-horizontal segment gas approach zone, 13-steam (vapor) outlet collection case, 14-outlet smokestack, 15-taper furnace hopper, 16-straight section portion, 17-burner hearth, 18-burner among 1-conical top, 2-flue, 3-blower fan, 4-low temperature heating surface, the 5-.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1; The boiler that is used for heat power station of the utility model; Comprise burner hearth 17, horizontal segment 10 and end segment 6, said burner hearth 17 mainly is made up of conical top 1, straight section portion 16 and taper furnace hopper 15, and the outer upper of said straight section portion 16 is provided with burner 18; The outer lower portion of said straight section portion 16 is provided with outlet smokestack 14; Said horizontal segment 10 is horizontal segment gas approach zone 12 near outlet smokestack 14 places, and said horizontal segment gas approach zone 12 is the slope form outside the end of horizontal segment 10, and the outer lower portion of end segment 6 is provided with import smokestack 7; Said horizontal segment 10 is horizontal segment exhanst gas outlet zone 9 near import smokestack 7 places; Said horizontal segment exhanst gas outlet zone 9 is the slope form outside the end of horizontal segment 10, the two ends of said horizontal segment 10 are communicated with outlet smokestack 14 and import smokestack 7 respectively, and the top of said end segment 6 is communicated with burner hearth 17 through flue 2.In horizontal segment 10, be furnished with high-temperature surface 11; Be provided with steam (vapor) outlet collection case 13 around the said horizontal segment 10; Warm heating surface 5 and low temperature heating surface 4 in said end segment 6, being provided with; The top of said end segment 6 is connected with flue 2, and said flue 2 is provided with blower fan 3, and the bottom of said end segment 6 is provided with ash bucket 8.
The boiler that is used for heat power station of the utility model, burner hearth 17 are surrounded by water-cooling wall, and burner 18 is positioned at burner hearth 17 tops, and fuel and air spray into burning in the burner hearth 17 through burner 18, generate flue gas.Flue gas flows downward along burner hearth 17, turns in burner hearth 17 bottoms to get into horizontal segment 10, the high-temperature surface 11 of flowing through and being arranged in horizontal segment 10.The temperature that steam in the high-temperature surface 11 is heated to requirement gets into outlet collection case 13.Flue gas gets into end segment 6 after leaving horizontal segment, in end segment 6, upwards flows, and flows through respectively to be arranged in the middle temperature heating surface 5 and low temperature heating surface 4 in the end segment 6.Part flows out the flue gas of low temperature heating surface 4 through recirculation blower 3 and flue gas recirculation pipeline 2, sends into from the top of burner hearth 17.
The boiler that is used for heat power station of the utility model, simple in structure, it is short that high-temperature steam connects pipeline, and heat loss is low, and effective rate of utilization is high, and generating efficiency is high; Can significantly reduce the length that high-temperature steam between boiler and steam turbine is connected pipeline, practice thrift the length and the consumption of high-grade, heavy wall, heavy caliber material; Reduced cost, also reduced resistance of ducting loss, promoted generating efficiency, be beneficial to and apply.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. boiler that is used for heat power station; It is characterized in that: it comprises burner hearth (17), horizontal segment (10) and end segment (6); The bottom of said burner hearth (17) is connected with horizontal segment (10); Be connected with end segment (6) on the said horizontal segment (10), the top of said end segment (6) is communicated with burner hearth (17) through flue (2).
2. the boiler that is used for heat power station as claimed in claim 1; It is characterized in that: the bottom of said burner hearth (17) is provided with outlet smokestack (14); The bottom of end segment (6) is provided with import smokestack (7), and the two ends of said horizontal segment (10) are communicated with outlet smokestack (14) and import smokestack (7) respectively.
3. according to claim 1 or claim 2 the boiler that is used for heat power station; It is characterized in that: said burner hearth (17) mainly is made up of conical top (1), straight section portion (16) and taper furnace hopper (15); The top of said straight section portion (16) is provided with burner (18), and the bottom of said straight section portion (16) is provided with outlet smokestack (14).
4. the boiler that is used for heat power station as claimed in claim 3 is characterized in that: in horizontal segment (10), be furnished with high-temperature surface (11), be provided with steam (vapor) outlet collection case (13) around the said horizontal segment (10).
5. like claim 2 or the 4 described boilers that are used for heat power station; It is characterized in that: warm heating surface (5) and low temperature heating surface (4) in being provided with in the said end segment (6); The top of said end segment (6) is connected with flue (2), and said flue (2) is provided with blower fan (3).
6. the boiler that is used for heat power station as claimed in claim 5; It is characterized in that: said horizontal segment (10) locates to be horizontal segment gas approach zone (12) near outlet smokestack (14); Said horizontal segment (10) locates to be horizontal segment exhanst gas outlet zone (9) near import smokestack (7), and said horizontal segment gas approach zone (12) all is the slope form to the two ends of horizontal segment (10) with horizontal segment exhanst gas outlet zone (9).
7. like claim 1 or 2 or the 4 or 6 described boilers that are used for heat power station, it is characterized in that: the lower end of said end segment (6) is provided with ash bucket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202730922U CN202253554U (en) | 2011-07-29 | 2011-07-29 | Boiler for heat power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202730922U CN202253554U (en) | 2011-07-29 | 2011-07-29 | Boiler for heat power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253554U true CN202253554U (en) | 2012-05-30 |
Family
ID=46114791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202730922U Expired - Lifetime CN202253554U (en) | 2011-07-29 | 2011-07-29 | Boiler for heat power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676769A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨锅炉厂有限责任公司 | A kind of arrangement of U-shaped boiler and its unit suitable for ultra supercritical Large Copacity coal unit |
-
2011
- 2011-07-29 CN CN2011202730922U patent/CN202253554U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676769A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨锅炉厂有限责任公司 | A kind of arrangement of U-shaped boiler and its unit suitable for ultra supercritical Large Copacity coal unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |