CN203549774U - Boiler device and generator set - Google Patents
Boiler device and generator set Download PDFInfo
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- CN203549774U CN203549774U CN201320732913.3U CN201320732913U CN203549774U CN 203549774 U CN203549774 U CN 203549774U CN 201320732913 U CN201320732913 U CN 201320732913U CN 203549774 U CN203549774 U CN 203549774U
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- Prior art keywords
- boiler
- control valve
- channel
- communicated
- passage
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- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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 relates to a boiler device and a generator set, and belongs to the field of thermal power generation. The boiler device comprises a plurality of boilers and a heat transmission unit, wherein a rear smoke channel (12) of one boiler is communicated with a combustion chamber (11) of the other boiler through the heat transmission unit. The utility model further provides the generator set. The generator set comprises a generator, a steam turbine used for driving the generator to generate electricity and the boiler device used for pushing the steam turbine to rotate. The boiler device and the generator set enable the boilers to be operated to have high pressure and high temperature before the boilers are started, in this way, temperature rise and pressure rise speed can be high when the boilers are started, the starting time of the boilers is shortened, and fuel for ignition is saved. Furthermore, due to the fact that the boilers to be operated are ignited under the condition of the high temperature, thermal shock generated when the boilers are started is reduced, and the service life of the boilers is prolonged.
Description
Technical field
The utility model relates to thermal power generation field, particularly, relates to a kind of boiler plant and generating set.
Background technology
Thermal power plant is called for short in thermal power plant, to utilize coal, oil, the natural gas factory as fuel production electric energy, its basic process of production is: fuel is combustion heating water generates steam in boiler, the chemical energy of fuel is transformed into heat energy, the rotation of steam pressure pushing turbine, thermal power transfer becomes mechanical energy, and then steam turbine drives generator rotation, and mechanical energy is transformed into electric energy.Power plant boiler start-up course is an extremely complicated unsettled diabatic process.Particularly, when cold start, for the consideration to boiler plant life-span and safety problem, the increasing temperature and pressure speed of boiler is restricted.
But, limited the boiler heating rate of rise, although boiler plant life-span and safety problem have solved, thereupon, brought new problem.Because the boiler heating rate of rise is slower, start-up time is longer, has caused ignition oil or combustion gas to increase, and is unfavorable for the economy of the quick load-responsive of unit and unit.
Therefore, need to study a kind of boiler plant and generating set, overcome the problem that in prior art, the boiler startup time is grown.
Utility model content
The purpose of this utility model is to provide a kind of boiler plant and generating set, to overcome the problem that in prior art, the boiler startup time is grown.
To achieve these goals, the utility model provides a kind of boiler plant, and described boiler plant comprises: multiple boilers, and heat transfer unit, the back-end ductwork of a boiler is communicated with the burner hearth of another boiler by described heat transfer unit.
Preferably, described heat transfer unit comprises: communicating passage, the back-end ductwork of a described boiler is communicated with the burner hearth of described another boiler by described communicating passage.
Preferably, described communicating passage is provided with the first control valve and the second control valve.
Preferably, described heat transfer unit comprises: first passage, second channel and third channel;
One end of described first passage is communicated with the back-end ductwork of a described boiler, and the other end is communicated with the back-end ductwork of described another boiler;
One end of described third channel is communicated with the burner hearth of a described boiler, and the other end is communicated with the burner hearth of described another boiler;
Described first passage is provided with the 3rd control valve and the 4th control valve, and described third channel is provided with the 5th control valve and the 6th control valve;
Described second channel is communicated with described first passage and described third channel respectively, and the connectivity points of described second channel and described first passage is between described the 3rd control valve and the 4th control valve, and the connectivity points of described second channel and described third channel is between described the 5th control valve and the 6th control valve.
Preferably, described heat transfer unit comprises communicating passage and the first air preheater, described the first air preheater is arranged in the back-end ductwork of a described boiler, and one end of described communicating passage is communicated with described the first air preheater, and the other end is communicated with the burner hearth of described another boiler.
Preferably, described communicating passage is provided with the first control valve and the second control valve.
Preferably, described heat transfer unit also comprises the second air preheater, described the second air preheater is arranged in the back-end ductwork of described another boiler, and one end of described communicating passage is communicated with described the first air preheater, and the other end is communicated with described the second air preheater.
Preferably, described communicating passage is provided with the first control valve and the second control valve.
Preferably, described heat transfer unit comprises the first air preheater, the second air preheater, first passage, second channel and third channel;
Described the first air preheater and the second air preheater are separately positioned in the back-end ductwork of a described boiler and the back-end ductwork of described another boiler;
One end of described first passage is communicated with described the first air preheater, and the other end is communicated with described the second air preheater;
One end of described third channel is communicated with the burner hearth of a described boiler, and the other end is communicated with the burner hearth of described another boiler;
Described first passage is provided with the 3rd control valve and the 4th control valve, and described third channel is provided with the 5th control valve and the 6th control valve.
Described second channel is communicated with described first passage and described third channel respectively, and the connectivity points of described second channel and described first passage is between described the 3rd control valve and the 4th control valve, and the connectivity points of described second channel and described third channel is between described the 5th control valve and the 6th control valve.
The utility model also provides a kind of generating set, and described generating set comprises: generator, the steam turbine for driving described generator to generate electricity, and for promoting the described boiler plant of described steam turbine rotation.
The boiler plant that the utility model provides and generating set, in use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described when boiler operation needs preheating, utilize high-temperature flue gas in the back-end ductwork of described boiler operation to treat boiler operation (as 4 hours) preheating before startup described in being, and then make to treat that boiler operation possesses higher pressure and temp before startup, like this, increasing temperature and pressure speed can be very fast when starting for boiler, shortened the boiler startup time, save igniting fuel, and treat that boiler operation is owing to lighting a fire in the situation that possessing higher temperature, therefore, thermal shock while having reduced boiler startup, extended the life-span of boiler.
Other feature and advantage of the present utility model are described in detail the specific embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of the embodiment 1 of a kind of boiler plant of providing of the utility model.
Fig. 2 is the structural representation of the embodiment 2 of a kind of boiler plant of providing of the utility model.
Fig. 3 is the structural representation of the embodiment 3 of a kind of boiler plant of providing of the utility model.
Fig. 4 is the structural representation of the embodiment 4 of a kind of boiler plant of providing of the utility model.
Fig. 5 is the structural representation of the embodiment 5 of a kind of boiler plant of providing of the utility model.
Description of reference numerals:
The burner hearth of 10: one boilers; 11: the burner hearth of another boiler;
The back-end ductwork of 12: one boilers; 13: the back-end ductwork of another boiler;
20: communicating passage; 21: first passage;
22: second channel; 23: third channel;
30: the first control valves; 31: the second control valves;
32: the three control valves; 33: the four control valves;
34: the five control valves; 35: the six control valves;
40: the first air preheaters; 41: the second air preheaters;
50: the first induced-draught fans; 51: the second induced-draught fans.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
The utility model provides a kind of boiler plant, and described boiler plant comprises: multiple boilers and heat transfer unit, as shown in Figure 1, the back-end ductwork 12 of a boiler is communicated with the burner hearth 11 of another boiler by described heat transfer unit.In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described when boiler operation needs preheating, utilize high-temperature flue gas in the back-end ductwork of described boiler operation to treat boiler operation (as 4 hours) preheating before startup described in by described heat transfer unit being, and then make to treat that boiler operation possesses higher pressure and temp before startup, like this, increasing temperature and pressure speed can be very fast when starting for boiler, shortened the boiler startup time, save igniting fuel, and treat that boiler operation is owing to lighting a fire in the situation that possessing higher temperature, therefore, thermal shock while having reduced boiler startup, extended the life-span of boiler.
Below by specific embodiment the heat transfer unit of described boiler plant is described in detail:
Embodiment 1
As shown in Figure 1, in the present embodiment, described heat transfer unit comprises: communicating passage 20, the back-end ductwork 12 of a described boiler is communicated with the burner hearth 11 of described another boiler by described communicating passage 20.
In order can conveniently to control, whether to need to treat boiler operation and carry out preheating, described communicating passage 20 is provided with the first control valve 30 and the second control valve 31.
In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler, for treating boiler operation, when described another boiler needs preheating, is opened described the first control valve 30 and the second control valve 31, high-temperature flue gas in the back-end ductwork 12 of a described boiler enters the burner hearth 11 of described another boiler along described communicating passage 20, make described another boiler (as 4 hours) preheating before startup.
Embodiment 2
As shown in Figure 2, in the present embodiment, described heat transfer unit comprises: first passage 21, second channel 22 and third channel 23.One end of described first passage 21 is communicated with the back-end ductwork 12 of a described boiler, and the other end is communicated with the back-end ductwork 13 of described another boiler; One end of described third channel 23 is communicated with the burner hearth 10 of a described boiler, and the other end is communicated with the burner hearth 11 of described another boiler.Described first passage 21 is provided with the 3rd control valve 32 and the 4th control valve 33, and described third channel 23 is provided with the 5th control valve 34 and the 6th control valve 35.Described second channel 22 is communicated with described first passage 21 and described third channel 23 respectively, and the connectivity points of described second channel 22 and described first passage 21 is between described the 3rd control valve 32 and the 4th control valve 33, and the connectivity points of described second channel 22 and described third channel 23 is between described the 5th control valve 34 and the 6th control valve 35.
In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described another boiler needs preheating, open described the 3rd control valve 32 and described the 6th control valve 35, and make described in described the 4th control valve 33 the 5th control valve 34 in closed condition, at this moment through described first passage 21, second channel 22, third channel 23, to enter in the burner hearth 11 of described another boiler be respectively its preheating to the high-temperature flue gas in the back-end ductwork 12 of described boiler operation.Otherwise when described another boiler is boiler operation, a described boiler, for when the boiler operation, is opened described the 4th control valve 33 and described the 5th control valve 34, and is made described the 3rd control valve 32 and described the 6th control valve 35 in closed condition.
Embodiment 3
As shown in Figure 3, in the present embodiment, described heat transfer unit comprises communicating passage 20 and the first air preheater 40, described the first air preheater 40 is arranged in the back-end ductwork 12 of a described boiler, one end of described communicating passage 20 is communicated with described the first air preheater 40, and another two ends are communicated with the burner hearth 11 of described another boiler.
In order can conveniently to control, whether to need to treat boiler operation and carry out preheating, described communicating passage 20 is provided with the first control valve 30 and the second control valve 31.
In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described another boiler needs preheating, open described the first control valve 30 and the second control valve 31, air in described the first air preheater 40 utilizes the high-temperature flue gas in the back-end ductwork 12 of a described boiler to carry out preheating, high temperature air in described like this first air preheater 40 enters the burner hearth 11 of described another boiler along described communicating passage 20, make described another boiler (as 4 hours) preheating before startup.
Embodiment 4
As shown in Figure 4, in the present embodiment, described heat transfer unit comprises communicating passage 20, the first air preheater 40 and the second air preheater 41.Described the first air preheater 40 is arranged in the back-end ductwork 12 of a described boiler, described the second air preheater 41 is arranged in the back-end ductwork 13 of described another boiler, one end of described communicating passage 20 is communicated with described the first air preheater 40, and the other end is communicated with described the second air preheater 41.Due to, the hot-air of discharging from described the first air preheater 40 and described the second air preheater 41 is divided into two strands: one removes the dry and pulverized coal conveying of coal pulverizer, and it is combustion-supporting that another strand directly sent into burner hearth.So in fact, the other end of described communicating passage 20 is communicated with the burner hearth 11 of described another boiler by described the second air preheater 41.
In order can conveniently to control, whether to need to treat boiler operation and carry out preheating, described communicating passage 20 is provided with the first control valve 30 and the second control valve 31.When needs are for when moving boiler preheating, described the first control valve 30 and the second control valve 31 can be opened.
In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described another boiler needs preheating, open described the first control valve 30 and the second control valve 31, air in described the first air preheater 40 utilizes the high-temperature flue gas in the back-end ductwork 12 of a described boiler to carry out preheating, high temperature air in described like this first air preheater 40 enters described the second air preheater 41 along communicating passage 20, described in finally entering, in the burner hearth 11 of another boiler, be its preheating.
Embodiment 5
As shown in Figure 5, in the present embodiment, described heat transfer unit comprises the first air preheater 40, the second air preheater 41, first passage 21, second channel 22 and third channel 23.Described the first air preheater 40 and the second air preheater 41 are separately positioned in the back-end ductwork 12 of a described boiler and the back-end ductwork 13 of described another boiler.One end of described first passage 21 is communicated with described the first air preheater 40, and the other end is communicated with described the second air preheater 41.One end of described third channel 23 is communicated with the burner hearth 10 of a described boiler, and the other end is communicated with the burner hearth 11 of described another boiler.Described first passage 21 is provided with the 3rd control valve 32 and the 4th control valve 33, and described third channel 23 is provided with the 5th control valve 34 and the 6th control valve 35.Described second channel 22 is communicated with described first passage 21 and third channel 23 respectively, and the connectivity points of described second channel 22 and described first passage 21 is between described the 3rd control valve 32 and the 4th control valve 33, and the connectivity points of described second channel 22 and third channel 23 is between described the 5th control valve 34 and the 6th control valve 35.
In use, in described multiple boiler, has a boiler operation at least, suppose, a described boiler is boiler operation, described another boiler is for treating boiler operation, when described another boiler needs preheating, open described the 3rd control valve 32 and described the 6th control valve 35, and make described in described the 4th control valve 33 the 5th control valve 34 in closed condition, air in described the first air preheater 40 utilizes the high-temperature flue gas in the back-end ductwork 12 of a described boiler to carry out preheating, high temperature air in described like this first air preheater 40 is respectively along described first passage 21, second channel 22, third channel 23 enters the burner hearth 11 of described another boiler, make described another boiler (as 4 hours) preheating before startup.
It is more than the detailed description of boiler plant that the utility model is provided, in addition, the utility model also provides a kind of generating set, and described generating set comprises: generator, the steam turbine for driving described generator to generate electricity, and for driving the described boiler plant of described steam turbine rotation.Like this, while utilizing above-mentioned generating set to generate electricity, by boiler operation, be boiler preheating to be moved, and then make to treat that boiler operation possesses higher pressure and temp before startup, shorten the boiler startup time, generating set is moved fast.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.
In addition, between various embodiment of the present utility model, also can be combined, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a boiler plant, is characterized in that, described boiler plant comprises: multiple boilers, and heat transfer unit, the back-end ductwork (12) of a boiler is communicated with the burner hearth (11) of another boiler by described heat transfer unit.
2. boiler plant according to claim 1, it is characterized in that, described heat transfer unit comprises: communicating passage (20), the back-end ductwork (12) of a described boiler is communicated with the burner hearth (11) of described another boiler by described communicating passage (20).
3. boiler plant according to claim 2, is characterized in that, described communicating passage (20) is provided with the first control valve (30) and the second control valve (31).
4. boiler plant according to claim 1, is characterized in that, described heat transfer unit comprises: first passage (21), second channel (22) and third channel (23);
One end of described first passage (21) is communicated with the back-end ductwork (12) of a described boiler, and the other end is communicated with the back-end ductwork (13) of described another boiler;
One end of described third channel (23) is communicated with the burner hearth (10) of a described boiler, and the other end is communicated with the burner hearth (11) of described another boiler;
Described first passage (21) is provided with the 3rd control valve (32) and the 4th control valve (33), and described third channel (23) is provided with the 5th control valve (34) and the 6th control valve (35);
Described second channel (22) is communicated with described first passage (21) and described third channel (23) respectively, and the connectivity points of described second channel (22) and described first passage (21) is positioned between described the 3rd control valve (32) and the 4th control valve (33), and the connectivity points of described second channel (22) and described third channel (23) is positioned between described the 5th control valve (34) and the 6th control valve (35).
5. boiler plant according to claim 1, it is characterized in that, described heat transfer unit comprises communicating passage (20) and the first air preheater (40), described the first air preheater (40) is arranged in the back-end ductwork (12) of a described boiler, one end of described communicating passage (20) is communicated with described the first air preheater (40), and the other end is communicated with the burner hearth (11) of described another boiler.
6. boiler plant according to claim 5, is characterized in that, described communicating passage (20) is provided with the first control valve (30) and the second control valve (31).
7. boiler plant according to claim 5, it is characterized in that, described heat transfer unit also comprises the second air preheater (41), described the second air preheater (41) is arranged in the back-end ductwork (13) of described another boiler, one end of described communicating passage (20) is communicated with described the first air preheater (40), and the other end is communicated with described the second air preheater (41).
8. boiler plant according to claim 7, is characterized in that, described communicating passage (20) is provided with the first control valve (30) and the second control valve (31).
9. boiler plant according to claim 1, is characterized in that, described heat transfer unit comprises the first air preheater (40), the second air preheater (41), first passage (21), second channel (22) and third channel (23);
Described the first air preheater (40) and the second air preheater (41) are separately positioned in the back-end ductwork (12) of a described boiler and the back-end ductwork (13) of described another boiler;
One end of described first passage (21) is communicated with described the first air preheater (40), and the other end is communicated with described the second air preheater (41);
One end of described third channel (23) is communicated with the burner hearth (10) of a described boiler, and the other end is communicated with the burner hearth (11) of described another boiler;
Described first passage (21) is provided with the 3rd control valve (32) and the 4th control valve (33), and described third channel (23) is provided with the 5th control valve (34) and the 6th control valve (35).
Described second channel (22) is communicated with described first passage (21) and described third channel (23) respectively, and the connectivity points of described second channel (22) and described first passage (21) is positioned between described the 3rd control valve (32) and the 4th control valve (33), and the connectivity points of described second channel (22) and described third channel (23) is positioned between described the 5th control valve (34) and the 6th control valve (35).
10. a generating set, is characterized in that, described generating set comprises: generator, for driving the steam turbine of described generator generating, and for promoting the boiler plant described in the claim 1-9 any one of described steam turbine rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732913.3U CN203549774U (en) | 2013-11-19 | 2013-11-19 | Boiler device and generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732913.3U CN203549774U (en) | 2013-11-19 | 2013-11-19 | Boiler device and generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549774U true CN203549774U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320732913.3U Expired - Lifetime CN203549774U (en) | 2013-11-19 | 2013-11-19 | Boiler device and generator set |
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| CN (1) | CN203549774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524591A (en) * | 2020-12-15 | 2021-03-19 | 润电能源科学技术有限公司 | Thermal power generation system starting method and related equipment |
-
2013
- 2013-11-19 CN CN201320732913.3U patent/CN203549774U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524591A (en) * | 2020-12-15 | 2021-03-19 | 润电能源科学技术有限公司 | Thermal power generation system starting method and related equipment |
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Granted publication date: 20140416 |