CN208042106U - A kind of coal gas high-temperature high-voltage power generation system - Google Patents
A kind of coal gas high-temperature high-voltage power generation system Download PDFInfo
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- CN208042106U CN208042106U CN201721889628.7U CN201721889628U CN208042106U CN 208042106 U CN208042106 U CN 208042106U CN 201721889628 U CN201721889628 U CN 201721889628U CN 208042106 U CN208042106 U CN 208042106U
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Abstract
The utility model is related to technical field of ferrous metallurgy, more particularly to a kind of coal gas high-temperature high-voltage power generation system, module is utilized including gas boiler burning, steam waste heat utilizes module and steam turbine power generation module, gas boiler burning includes gas boiler using module, drum, first steam generator, second steam generator, superheater, first economizer, second economizer, first air preheater, second air preheater, pressure fan, air door, gas heater, hot-air duct and butterfly valve, low temperature coal gas is heated by the way that gas heater is arranged, and then improve gas-fired required temperature, improve superheated steam parameter, improve gas-fired required temperature, further increase efficiency of combustion, it is final to improve gas generating system generated energy.
Description
Technical field
The utility model is related to technical field of ferrous metallurgy, and in particular to a kind of coal gas high-temperature high-voltage power generation system.
Background technology
Currently, China's steel industry is by fast development for many years, industry and technically there is apparent progress and improves,
Steel industry will consume a large amount of energy every year, compared with the advanced western countries of other technologies, especially in terms of steel consumption
The space improved, also prodigious gap are also much needed, although the enhancing of many industry energy conservation consciousness, many enterprises utilize
Blast furnace gas generates electricity, but present coal gas is still very low using electricity generation system utilization, causes energy utilization rate not high, makes
At excessive energy waste and cause environmental pollution.
Currently, the UTILIZATION OF VESIDUAL HEAT IN effectively integrated is not accomplished in existing coal gas power generation, such as：Coal gas power generation is low using steam
The electricity generation system of parameter affects the transformation efficiency of the energy, and gas combustion efficiency is relatively low, wastes effective profit of the coal gas energy
With.
Utility model content
The purpose of this utility model is that being directed to deficiency in the prior art, and provide a kind of coal gas high-temperature high-voltage power system
System, can solve the problems, such as that gas combustion efficiency is low using the system.
The purpose of this utility model is achieved through the following technical solutions：A kind of coal gas high-temperature high-voltage power generation system, including coal
Gas boiler burning utilizes module and steam turbine power generation module using module, steam waste heat；Gas boiler burns using module
Gas boiler, drum, the first steam generator, the second steam generator, superheater, the first economizer, the second economizer, first
Air preheater, the second air preheater, pressure fan, air door, gas heater, hot-air duct and butterfly valve；Wherein, first
Steam generator and the second steam generator are interconnected and are layed in the top inside gas boiler, the first steam generator with
Second steam generator is connected by tedge with down-comer with drum；The superheater is located at the top inside gas boiler,
Superheater is connected to drum, and drum is connected to by main steam line with the steam turbine of steam turbine power generation module；First province coal
Device, the second economizer, the first air preheater and the second air preheater are respectively positioned in the flue of gas boiler fire box,
And it arranges from top to bottom successively；One section of second air preheater of connection of hot-air duct, the other end pass through butterfly valve and coal gas
The inlet end of boiler is connected；Pressure fan is connected to supply cold air with the first air preheater；Exhanst gas outlet pipeline is connected to coal gas
The smoke outlet of boiler, and be connected to chimney by air-introduced machine；Gas piping is connected to the inlet end of gas boiler, more than steam
Heat utilization module includes gas heater, and one end of gas heater is mounted on gas piping, and the other end is mounted on exhanst gas outlet
Pipeline, with using the coal gas in fume afterheat heating gas pipeline, steam turbine power generation module includes stating steam turbine, generator, cold
Condenser, cooling tower, water circulating pump, condensate pump, the first low-pressure heater, the second low-pressure heater, oxygen-eliminating device, feed pump are high
Press heater；Steam turbine is connect with generator, and steam turbine is connected to the air inlet of condenser, and cooling tower passes through cold with water circulating pump
But pipeline is connected to, and cooling pipe has the inside of part merging condenser to carry out heat exchange cooling, and the water outlet of condenser passes through condensation
Water pump is connected to the first low-pressure heater, the second low-pressure heater, oxygen-eliminating device, and oxygen-eliminating device is connected by feed pump and high-pressure heater
Logical, the high-pressure heater is connected to the first economizer.
Wherein, first economizer is low-level (stack-gas) economizer.
Wherein, second economizer is high-temperature economizer.
Wherein, air door is provided with Pneumatic control module, Pneumatic control module include the air compressor for being sequentially communicated setting,
Compressed air cylinder, C grade superheater, freezing type drier, the first T grades of filters and the 2nd T grades of filters, the 2nd T grades of filters
It is connected to air door by pipeline.
The beneficial effects of the utility model：In the coal gas high-temperature high-voltage power generation system of the application, by the way that heated by gas is arranged
Device heats low temperature coal gas, and then improves gas-fired required temperature, improves superheated steam parameter, improves gas-fired institute
Temperature is needed, efficiency of combustion is further increased, it is final to improve gas generating system generated energy.
Description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model
Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached
Figure obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of coal gas high-temperature high-voltage power generation system of the utility model.
Fig. 2 is a kind of part-structure schematic diagram of the butterfly valve of coal gas high-temperature high-voltage power generation system of the utility model.
Reference numeral：It is steam turbine 1, gas piping 101, exhanst gas outlet pipeline 102, hot-air duct 103, generator 2, cold
Condenser 3, water circulating pump 5, condensate pump 6, the first low-pressure heater 7, the second low-pressure heater 8, oxygen-eliminating device 9, is given cooling tower 4
Water pump 10, high-pressure heater 11, the first air preheater 12, the first economizer 13, the second air preheater 14, the second economizer
15, drum 16, the first evaporator 17, the second evaporator 18, superheater 19, butterfly valve 20, chimney 21, air-introduced machine 22, heated by gas
Device 23, pressure fan 24, air door 25, gas boiler 26.
Specific implementation mode
The utility model is further described with the following Examples.
A kind of specific implementation mode of the coal gas high-temperature high-voltage power generation system of the utility model, as depicted in figs. 1 and 2, packet
It includes gas boiler burning and utilizes module and steam turbine power generation module using module, steam waste heat；Gas boiler burning utilizes module
Including gas boiler 26, drum 16, the first steam generator 17, the second steam generator 18, superheater 19, the first economizer
13, the second economizer 15, the first air preheater 12, the second air preheater 14, pressure fan 24, air door 25, gas heater
23, hot-air duct 103 and butterfly valve 20；Wherein, the first steam generator 17 and the second steam generator 18 are interconnected simultaneously
It is layed in the top inside gas boiler 26, the first steam generator 17 and the second steam generator 18 and passes through tedge and decline
Pipe is connected with drum 16；Superheater 19 is located at the top inside gas boiler 26, and superheater 19 is connected to drum 16, and drum 16 is logical
Main steam line is crossed to be connected to the steam turbine 1 of steam turbine power generation module；First economizer 13, the second economizer 15, the first air
Preheater 12 and the second air preheater 14 are respectively positioned in the flue of 26 fire box of gas boiler, and successively from top to bottom
Arrangement；One section of hot-air duct 103 the second air preheater 14 of connection, the other end by butterfly valve 20 and gas boiler 26 into
Gas end is connected；Pressure fan 24 is connected to supply cold air with the first air preheater 12；Exhanst gas outlet pipeline 102 is connected to coal gas pot
The smoke outlet of stove 26, and be connected to chimney 21 by air-introduced machine 22；Gas piping 101 and the inlet end of gas boiler 26 connect
Logical, steam waste heat includes gas heater 23 using module, and one end of gas heater 23 is mounted on gas piping 101, another
End is mounted on exhanst gas outlet pipeline 102, to utilize the coal gas in fume afterheat heating gas pipeline 101, steam turbine power generation module
Including stating steam turbine 1, generator 2, condenser 3, cooling tower 4, water circulating pump 5, condensate pump 6, the first low-pressure heater 7,
Two low-pressure heaters 8, oxygen-eliminating device 9, feed pump 10, high-pressure heater 11；Steam turbine 1 is connect with generator 2, steam turbine 1 with it is cold
The air inlet of condenser 3 is connected to, and cooling tower 4 is connected to water circulating pump 5 by cooling pipe, and cooling pipe has part to be placed in condenser
3 inside carries out heat exchange cooling, and the water outlet of condenser 3 is added by condensate pump 6 and the first low-pressure heater 7, the second low pressure
Hot device 8, oxygen-eliminating device 9 are connected to, and oxygen-eliminating device 9 is connected to by feed pump 10 with high-pressure heater 11, high-pressure heater 11 and the first province
Coal device 13 is connected to.
As a preferred option, the first economizer 13 is low-level (stack-gas) economizer.
As a preferred option, the second economizer 13 is high-temperature economizer.
The course of work of the coal gas high-temperature high-voltage power generation system of the present embodiment, coal gas enter coal by coal supply feed channel 101
Before gas boiler 26 burns, gas heater 23 utilizes the temperature of the exhaust gas heat exchange indirectly heat coal gas itself of gas boiler 26, so
Enter gas boiler 26 afterwards to burn, the flue gas that gas-fired generates passes through superheater 19, the second evaporator 18, the first evaporator
17, the joint of more than 13 a device of the second economizer 15, the second air preheater 14 and the first economizer carries out steam-water heat exchanging and produces
Then just air is discharged by wind turbine 22 and chimney 21 in raw superheated steam, remaining exhaust gas；Superheated steam comes out from superheater 19
Enter steam turbine 1 afterwards, generated electricity by 1 pushing generator 2 of steam turbine, condensation is entered by the later steam exhaust of doing work of steam turbine 1
Device 3 carries out cycle with 4 cooling water of cooling tower in condenser 3 and exchanges cooling, first is flowed to by condensate pump 6 again after cooling
Low-pressure heater 7 and the second low-pressure heater 8, enter 9 deoxygenation of oxygen-eliminating device, by after 9 deoxygenation of oxygen-eliminating device again by giving
Water pump 10 enters high-pressure heater 11, and deaerated water carries out entering the first economizer after being heated to 190 DEG C by high-pressure heater 11
12, complete water circulation system.
See Fig. 2, air door 25 is provided with Pneumatic control module, and Pneumatic control module includes being sequentially communicated the compression sky of setting
Mechanism of qi 201, compressed air cylinder 202, C grades of superheaters 203, the 204, the first T grades of filters 205 of freezing type drier and the 2nd T
Grade filter 206, the 2nd T grades of filters are connected to by pipeline with air door 25.This structure, as power, is carried using compressed air
Operating cost is saved while high security；Specifically, compressed air is by air compressor 201, subsequently into compressed air
Tank 202 stores voltage stabilizing, enters back into and sequentially enters C grades of superheaters 203, freezing type drier 204, the first T grades of filters 205, the
Two T grades of filter 206 carries out valve gas by clean air after filtering.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (4)
1. a kind of coal gas high-temperature high-voltage power generation system, it is characterised in that：Module, steam waste heat profit are utilized including gas boiler burning
With module and steam turbine power generation module；
Gas boiler burning includes gas boiler (26), drum (16), the first steam generator (17), the second steam using module
Generator (18), superheater (19), the first economizer (13), the second economizer (15), the first air preheater (12), the second sky
Air preheater (14), pressure fan (24), air door (25), gas heater (23), hot-air duct (103) and butterfly valve (20)；
Wherein, the first steam generator (17) is interconnected with the second steam generator (18) and is layed in gas boiler (26) inside
Top, the first steam generator (17) are connected by tedge with down-comer with drum (16) with the second steam generator (18)；
Superheater (19) is located at the internal top of gas boiler (26), and superheater (19) is connected to drum (16), and drum (16) passes through master
Jet chimney is connected to the steam turbine (1) of steam turbine power generation module；First economizer (13), the second economizer (15), the first sky
Air preheater (12) and the second air preheater (14) are respectively positioned in the flue of gas boiler (26) fire box, and successively
It arranges from top to bottom；One section of hot-air duct (103) the second air preheater of connection (14), the other end by butterfly valve (20) with
The inlet end of gas boiler (26) is connected；Pressure fan (24) is connected to supply cold air with the first air preheater (12)；Flue gas
Outlet conduit (102) is connected to the smoke outlet of gas boiler (26), and is connected to chimney (21) by air-introduced machine (22)；Coal gas
Pipeline (101) is connected to the inlet end of gas boiler (26), and the steam waste heat includes gas heater (23), coal using module
One end of hot-air heater (23) is mounted on gas piping (101), and the other end is mounted on exhanst gas outlet pipeline (102), to utilize cigarette
Coal gas in gas waste-heat gas piping (101)；
Steam turbine power generation module include state steam turbine (1), generator (2), condenser (3), cooling tower (4), water circulating pump (5),
Condensate pump (6), the first low-pressure heater (7), the second low-pressure heater (8), oxygen-eliminating device (9), feed pump (10), hyperbaric heating
Device (11)；Steam turbine (1) is connect with generator (2), and steam turbine (1) is connected to the air inlet of condenser (3), cooling tower (4) with
Water circulating pump (5) is connected to by cooling pipe, and the inside that cooling pipe has part to be placed in condenser (3) carries out heat exchange cooling, cold
The water outlet of condenser (3) passes through condensate pump (6) and the first low-pressure heater (7), the second low-pressure heater (8), oxygen-eliminating device (9)
Connection, oxygen-eliminating device (9) are connected to by feed pump (10) with high-pressure heater (11), high-pressure heater (11) and the first economizer
(13) it is connected to.
2. coal gas high-temperature high-voltage power generation system according to claim 1, it is characterised in that：First economizer (13) is low temperature
Economizer.
3. coal gas high-temperature high-voltage power generation system according to claim 1, it is characterised in that：Second economizer (13) is high temperature
Economizer.
4. coal gas high-temperature high-voltage power generation system according to claim 1, it is characterised in that：Air door (25) is provided with pneumatic control
Molding block, Pneumatic control module include the air compressor (201) for being sequentially communicated setting, compressed air cylinder (202), C grades of overheats
Device (203), freezing type drier (204), the first T grades of filters (205) and the 2nd T grades of filters (206), the 2nd T grades of filterings
Device is connected to by pipeline with air door (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889628.7U CN208042106U (en) | 2017-12-27 | 2017-12-27 | A kind of coal gas high-temperature high-voltage power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889628.7U CN208042106U (en) | 2017-12-27 | 2017-12-27 | A kind of coal gas high-temperature high-voltage power generation system |
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| Publication Number | Publication Date |
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| CN208042106U true CN208042106U (en) | 2018-11-02 |
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ID=63955749
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| CN201721889628.7U Active CN208042106U (en) | 2017-12-27 | 2017-12-27 | A kind of coal gas high-temperature high-voltage power generation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157484A (en) * | 2019-05-29 | 2019-08-23 | 广东东实开能能源有限公司 | A kind of biomass multi-production system |
| CN110657416A (en) * | 2019-10-28 | 2020-01-07 | 中国能源建设集团陕西省电力设计院有限公司 | Power generation system utilizing blast furnace gas |
| CN113432109A (en) * | 2021-06-28 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
-
2017
- 2017-12-27 CN CN201721889628.7U patent/CN208042106U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157484A (en) * | 2019-05-29 | 2019-08-23 | 广东东实开能能源有限公司 | A kind of biomass multi-production system |
| CN110157484B (en) * | 2019-05-29 | 2024-05-03 | 广东东实开能能源有限公司 | Biomass poly-generation system |
| CN110657416A (en) * | 2019-10-28 | 2020-01-07 | 中国能源建设集团陕西省电力设计院有限公司 | Power generation system utilizing blast furnace gas |
| CN113432109A (en) * | 2021-06-28 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
| CN113432109B (en) * | 2021-06-28 | 2023-03-07 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
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