CN203857456U - Boiler starting speed increasing and oil saving arrangement structure of heat power station - Google Patents
Boiler starting speed increasing and oil saving arrangement structure of heat power station Download PDFInfo
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- CN203857456U CN203857456U CN201420162188.5U CN201420162188U CN203857456U CN 203857456 U CN203857456 U CN 203857456U CN 201420162188 U CN201420162188 U CN 201420162188U CN 203857456 U CN203857456 U CN 203857456U
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- China
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- air
- boiler
- pulverized coal
- heating device
- power station
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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 discloses a boiler starting speed increasing and oil saving arrangement structure of a heat power station. The starting speed of a boiler of the heat power station is increased. The arrangement structure comprises a blower, an air pre-heater, a pulverized coal burner, the boiler, an induced draft fan and a chimney in sequence, wherein a first oil gun is arranged in the pulverized coal burner. The arrangement structure also comprises a pulverization system and a primary fan, wherein one end of the pulverization system is communicated with the pulverized coal burner through a pulverized coal delivery pipeline, and the other end of the pulverization system is communicated with the primary fan through a primary air pipeline which penetrates through the air pre-heater; a primary air heating device is additionally arranged on the primary air pipeline and in front of the pulverization system. According to the arrangement structure, primary air can be quickly heated to enable the pulverization system to quickly reach required pulverization temperature after the additional primary air heating device is started, pulverized coal enters the pulverized coal burner, and the boiler is quickly started by the ignition of the first oil gun; moreover, the conventional arrangement for starting the boiler is eliminated, so that the oil consumption is reduced, and the cost is saved.
Description
Technical field
The utility model relates to thermal power generating technology field, and particularly a kind of being applied to improved the heat power station raising boiler startup speed of heat power station and the arrangement of fuel-economizing.
Background technology
In existing heat power station, newly-built station boiler generally has the boiler of two platform independent, and one is startup boiler, and one is generating boiler.Startup boiler is oil burning boiler, starts furnace fuel oil heating water generates steam, and the neighboring furnace heating eguipment of steam by being arranged on generating boiler bottom be to the heating of generating boiler, simultaneously the also air in heating boiler.Air Flow, after air preheater, adds heat primary air, and one time wind is delivered to after pulverized coal preparation system, heat temperature raising gradually, and after temperature is brought up to a certain degree, ability powder process, delivers to after powder process in boiler again, burns by grease gun igniting, continues the water of heating boiler heating surface.Flue gas flow to air preheater after discharging, then heats primary and secondary air, forms circulation to maintain whole process.
Owing to starting the preheating of boiler oil firing, consumed a large amount of fuel oils, and the heat that provides much smaller than burning fine coal of the heat that provides of oil firing, by starting the preheating of boiler oil firing, indirectly to enter the heat of boiler limited, meet the required temperature of pulverized coal preparation system length consuming time, boiler startup speed is slow.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of and improve heat power station boiler startup speed and reduce the heat power station raising boiler startup speed of oil consumption and the arrangement of fuel-economizing.
The utility model solves technical scheme that its technical problem adopts: heat power station improves the arrangement of boiler startup speed and fuel-economizing, comprises the pressure fan, air preheater, powdered coal burner, boiler, air-introduced machine and the chimney that set gradually; In described powdered coal burner, be provided with the first oil gun, described pressure fan is communicated with by Secondary Air pipeline with powdered coal burner, and this Secondary Air pipeline is through air preheater; Also comprise pulverized coal preparation system and primary air fan, described pulverized coal preparation system one end is communicated with powdered coal burner by powder feeding pipes, and the other end is communicated with primary air fan by a wind pipeline, and a wind pipeline is through air preheater; Described air-introduced machine is connected with boiler and chimney respectively by flue, and flue between boiler and air-introduced machine is through air preheater; On a wind pipeline before pulverized coal preparation system, have additional air heating device one time.
As preferred technical scheme, a described air heating device is the second oil gun or other heater being arranged on a wind pipeline.
Be further, an air heating device of setting up on a described wind pipeline is arranged between air preheater and pulverized coal preparation system, on a wind pipeline between air preheater and an air heating device, be provided with the first detector unit, on a wind pipeline between air heating device and pulverized coal preparation system, be provided with the second detector unit.
Further, between described air-introduced machine and chimney, be provided with deduster.
The beneficial effects of the utility model are: on the wind pipeline of the utility model before pulverized coal preparation system, be provided with air heating device one time, an air heating device job can be heated rapidly air temperature one time, make pulverized coal preparation system meet rapidly powder process temperature conditions, fine coal enters powdered coal burner, the first grease gun igniting starts rapidly generating boiler, has improved the toggle speed of generating boiler, and has cancelled the layout of original startup boiler, reduce oil consumption, saved cost.Owing to being provided with deduster between the air-introduced machine described and chimney, can remove most of flue dust that boiler produces, reduce air pollution.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure, be labeled as: boiler 1, powdered coal burner 2, the first detector units 3, the second detector unit 4, air preheater 5, pressure fan 6, primary air fan 7, air-introduced machine 8, deduster 9, chimney 10, pulverized coal preparation system 11, flue 12, Secondary Air pipeline 13,15, air heating devices 16 of 14, wind pipelines of powder feeding pipes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, heat power station of the present utility model improves the arrangement of boiler startup speed and fuel-economizing, comprises the pressure fan 6, air preheater 5, powdered coal burner 2, boiler 1, air-introduced machine 8 and the chimney 10 that set gradually; In described powdered coal burner 2, be provided with the first oil gun, described pressure fan 6 is communicated with by Secondary Air pipeline 13 with powdered coal burner 2, and this Secondary Air pipeline 13 is through air preheater 5; Also comprise pulverized coal preparation system 11 and primary air fan 7, described pulverized coal preparation system 11 one end are communicated with powdered coal burner 2 by powder feeding pipes 14, and the other end is communicated with primary air fan 7 by a wind pipeline 15, and a wind pipeline 15 is through air preheater 5; Described air-introduced machine 8 is connected with boiler 1 and chimney 10 respectively by flue 12, and flue between boiler 1 and air-introduced machine 8 12 is through air preheater 5; On a wind pipeline 15 before pulverized coal preparation system 11, have additional air heating device 16 one time.Heat power station of the present utility model improves the arrangement of boiler startup speed and fuel-economizing, on a wind pipeline 15 before pulverized coal preparation system 11, be provided with air heating device 16 one time, when use, primary air fan 7 is sent into wind one time in a wind pipeline 15, one time air heating device 16 starts a wind-warm syndrome of heating rapidly, make pulverized coal preparation system 11 meet rapidly powder process temperature conditions and start powder process, the fine coal obtaining enters powdered coal burner 2, pressure fan 6 is sent into Secondary Air, the first grease gun igniting in powdered coal burner 2 makes pulverized coal friring simultaneously, like this, with respect to the startup boiler that adopts fuel oil, boiler 1 is heated, can make boiler 1 obtain rapidly a large amount of heats, thereby start rapidly generating boiler 1, improve the toggle speed of generating boiler 1, due to the setting of an air heating device 16, can make pulverized coal preparation system 11 start rapidly, therefore can cancel original startup boiler that utilizes fuel oil.Reduce oil consumption, saved cost.It should be noted that, after pulverized coal preparation system 11 starts, fine coal constantly feeds powdered coal burner 2 and burns, most of heat is for heating steam generating, the flue gas that burning produces is by flue 12, then drain from chimney 10, because flue 12 is through air preheater 5, waste heat is utilized by air preheater 5, be used for heating wind-warm syndrome and secondary air temperature, when after cigarette wind parameter stability in system, a wind-warm syndrome moment keeps meeting the powder process temperature conditions of pulverized coal preparation system 11, now air heating device 16 and the first oil gun can be closed, the constantly normal circulation running of whole device, save oil consumption.
In the above-described embodiment, a described air heating device 16 is for being arranged on the second oil gun or other heater on a wind pipeline 15.Adopt oil gun mode to heat a wind, can utilize the oil supply system of the first oil gun to the second oil gun fuel feeding, another assembly lube system again; Other heater can adopt the heaters such as electric heater unit to realize, and equally also can reach the object of a wind of Fast Heating.
In the above embodiment, operating personnel can judge according to the ruuning situation of system the shut-in time point of an air heating device 16, but in order more accurately to grasp the shut-in time point of an air heating device 16, as preferred mode, an air heating device 16 of setting up on a described wind pipeline 15 is arranged between air preheater 5 and pulverized coal preparation system 11, on a wind pipeline 15 between air preheater 5 and an air heating device 16, be provided with the first detector unit 3, on a wind pipeline 15 between air heating device 16 and pulverized coal preparation system 11, be provided with the second detector unit 4.Because the first detector unit 3 is arranged on a wind pipeline 15 between air preheater 5 and an air heating device 16, the temperature that its detection obtains is the temperature value that the interior flue gas of boiler 1 adds heat primary air after air preheater 5, and the second detector unit 4 is arranged on a wind pipeline 15 between air heating device 16 and pulverized coal preparation system 11, the temperature value that its detection obtains is that an air heating device Final 16 system adds the temperature value after heat primary air.In the time that the temperature of pulverized coal preparation system 11 reaches requirement startup, record the second detector unit 4 and detect the temperature t 1 obtaining, powder process is delivered to powdered coal burner 2 by the fine coal obtaining after starting and is burnt, the interior flue-gas temperature of boiler 1 promotes rapidly, flue gas carries out heat exchange to air preheater 5 to primary air fan 7 a wind through flue 12, when the first detector unit 3 detects the temperature that obtains with temperature t 1 quite time, illustrate in boiler 1 at this moment that flue-gas temperature out adds heat primary air and also can meet the powder process requirement of pulverized coal preparation system 11, at this moment, can stop the work of an air heating device 16, constantly normal circulation running of whole system, no longer need to open an air heating device 16 wind is forced to heating.
The flue gas that boiler 1 burning produces can directly be drained by chimney 10; but the particle dust being mingled with in flue gas meeting severe contamination air; therefore be to be provided with deduster 9 between described air-introduced machine 8 and chimney 10 as preferred mode; can remove most of flue dust that boiler 1 produces, reduce air pollution.
Claims (4)
1. heat power station improves the arrangement of boiler startup speed and fuel-economizing, comprises the pressure fan (6), air preheater (5), powdered coal burner (2), boiler (1), air-introduced machine (8) and the chimney (10) that set gradually; In described powdered coal burner (2), be provided with the first oil gun, described pressure fan (6) is communicated with by Secondary Air pipeline (13) with powdered coal burner (2), and this Secondary Air pipeline (13) is through air preheater (5); Also comprise pulverized coal preparation system (11) and primary air fan (7), described pulverized coal preparation system (11) one end is communicated with powdered coal burner (2) by powder feeding pipes (14), the other end is communicated with primary air fan (7) by a wind pipeline (15), and a wind pipeline (15) is through air preheater (5); Described air-introduced machine (8) is connected with boiler (1) and chimney (10) respectively by flue (12), and flue (12) between boiler (1) and air-introduced machine (8) passes air preheater (5); It is characterized in that: on pulverized coal preparation system (11) wind pipeline (15) before, have additional an air heating device (16).
2. heat power station according to claim 1 improves the arrangement of boiler startup speed and fuel-economizing, it is characterized in that: a described air heating device (16) is for being arranged on the second oil gun on a wind pipeline (15).
3. heat power station according to claim 1 improves the arrangement of boiler startup speed and fuel-economizing, it is characterized in that: an air heating device (16) of setting up on a described wind pipeline (15) is arranged between air preheater (5) and pulverized coal preparation system (11), on the wind pipeline (15) between air preheater (5) and an air heating device (16), be provided with the first detector unit (3), on the wind pipeline (15) between an air heating device (16) and pulverized coal preparation system (11), be provided with the second detector unit (4).
4. the arrangement that improves boiler startup speed and fuel-economizing according to the heat power station described in claim 1,2 or 3, is characterized in that: between described air-introduced machine (8) and chimney (10), be provided with deduster (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162188.5U CN203857456U (en) | 2014-04-04 | 2014-04-04 | Boiler starting speed increasing and oil saving arrangement structure of heat power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162188.5U CN203857456U (en) | 2014-04-04 | 2014-04-04 | Boiler starting speed increasing and oil saving arrangement structure of heat power station |
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| Publication Number | Publication Date |
|---|---|
| CN203857456U true CN203857456U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420162188.5U Expired - Fee Related CN203857456U (en) | 2014-04-04 | 2014-04-04 | Boiler starting speed increasing and oil saving arrangement structure of heat power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868054A (en) * | 2014-04-04 | 2014-06-18 | 四川电力建设三公司 | Boiler starting speed increasing and oil-saving arrangement structure for heat power station and method for rapidly starting boiler |
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2014
- 2014-04-04 CN CN201420162188.5U patent/CN203857456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868054A (en) * | 2014-04-04 | 2014-06-18 | 四川电力建设三公司 | Boiler starting speed increasing and oil-saving arrangement structure for heat power station and method for rapidly starting boiler |
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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: 20141001 Termination date: 20180404 |