CN201930707U - Flue gas desulphurization device - Google Patents
Flue gas desulphurization device Download PDFInfo
- Publication number
- CN201930707U CN201930707U CN2011200357650U CN201120035765U CN201930707U CN 201930707 U CN201930707 U CN 201930707U CN 2011200357650 U CN2011200357650 U CN 2011200357650U CN 201120035765 U CN201120035765 U CN 201120035765U CN 201930707 U CN201930707 U CN 201930707U
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- booster fan
- flue
- bypass
- flue gas
- fan
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Abstract
The utility model discloses a flue gas desulphurization device, which comprises a desulphurization absorption tower, an inlet flue, a booster fan, a booster fan disconnecting device and a bypass flue. The inlet flue is communicated with a flue gas inlet of the desulphurization absorption tower and a boiler induced draft fan, the booster fan and the booster fan disconnecting device are disposed on the inlet flue, the bypass flue is connected with the booster fan and the booster fan disconnecting device in parallel, a bypass disconnecting device is arranged on the bypass flue, one end of the bypass flue is communicated with the flue gas inlet of the desulphurization absorption tower, and the other end of the bypass flue is communicated with the boiler induced draft fan. The bypass flue is connected with the booster fan in parallel, when allowance load of the boiler induced draft fan reaches or is higher than designed running load of the booster fan, the bypass flue can be opened, a channel of the booster fan is disconnected, the booster fan stops running, flue gas flows through the bypass flue, pressure head allowance of the boiler induced draft fan overcomes resistance of the flue gas of the desulphurization device to be induced into the desulphurization device, and the flue gas desulphurization device can greatly lower power consumption for operation and saves energy due to the fact that the booster fan stops running.
Description
Technical field
The utility model belongs to the flue gases purification field, is specifically related to a kind of flue gas desulfur device.
Background technology
It is the country of main energy sources with coal that China is one, and coal fired power generation is one of most important approach of utilizing of coal in China, according to the national conditions of China, 21st century coal fired power generation will occupy an leading position.In numerous atmosphere pollutions of coal-fired fired power generating unit discharging, SO2 and dust are bigger to the harm of environment, are the major pollutants that will control.Along with the progress and the expanding economy of society, thermal power plant has been subjected to people's common concern to the pollution of atmospheric environment, and therefore effectively reducing pollutant emission is the severe challenge that China's energy field sustainable development is faced with the influence that improves environment.
Limestone/lime-gypsum wet is that technology is the most ripe in the world at present, and practical achievement is maximum, uses the widest sulfur removal technology.The wet process of FGD capital equipment comprises desulfuration absorbing tower and booster fan; Booster fan claims the desulfurization blower fan again, is the flue gas resistance that is used to overcome flue gas desulfur device, and former flue gas is introduced desulfurizer, and the capital equipment of stable boiler induced-draft fan outlet pressure.But in being provided with the desulfurizer of booster fan, because a variety of causes such as design selection, operation optimizations, the surplus of boiler induced-draft fan and booster fan is all bigger, and operation simultaneously causes energy waste bigger.
Therefore, need improve, overcome the desulfurizer flue gas resistance, when former flue gas is introduced desulfurizer, can reduce power consumption, energy savings existing flue gas desulfur device.
Summary of the invention
In view of this, the utility model provides a kind of flue gas desulfur device, is overcoming the desulfurizer flue gas resistance, when former flue gas is introduced desulfurizer, reduces power consumption, energy savings.
Flue gas desulfur device of the present utility model, comprise desulfuration absorbing tower, be communicated with the gas approach of desulfuration absorbing tower smoke inlet and boiler induced-draft fan and be arranged at booster fan and booster fan shearing device on the gas approach, also comprise the bypass flue in parallel with booster fan and booster fan shearing device, the bypass flue is provided with the bypass shearing device, one end of described bypass flue is communicated with the desulfuration absorbing tower smoke inlet, and the other end is communicated with boiler induced-draft fan.
Further, described booster fan shearing device comprises inlet baffle that is arranged on the booster fan porch and the outlet damper that is arranged on the booster fan exit;
Further, described bypass shearing device is a by-pass damper;
Further, described flue gas desulfur device comprises two groups of described bypass flues, bypass shearing device, booster fan and booster fan shearing devices, and is arranged in parallel between two groups.
The beneficial effects of the utility model are: the utility model is provided with the bypass flue in parallel with booster fan, when boiler induced-draft fan surplus load reaches even be higher than booster fan design and operation load, can open the bypass flue, cut off the path of booster fan, stop the booster fan operation, flue gas overcomes the desulfurizer flue gas resistance by the bypass flue by boiler induced-draft fan pressure head surplus, introduces desulfurizer; Owing to stop the operation of booster fan, can reduce desulfurizer operation power consumption greatly, energy savings; As 2 * 1000MW generator set desulfurization project, under the situation of load 55% ~ 100%, all can stop booster fan, annual power consumption saving surpasses 2,300,000 degree, about about 7,400,000 yuan of economic worth, economic benefit is huge.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
Fig. 1 is the structural representation of the utility model embodiment one, as shown in the figure, flue gas desulfur device of the present utility model, comprise desulfuration absorbing tower 1, be communicated with the gas approach 2 of desulfuration absorbing tower 1 smoke inlet and boiler induced-draft fan 8 and be arranged at booster fan 3 and booster fan shearing device on the gas approach 2, also comprise the bypass flue 4 in parallel with booster fan 3 and booster fan shearing device, bypass flue 4 is provided with the bypass shearing device, one end of described bypass flue 4 is communicated with desulfuration absorbing tower 1 smoke inlet, and the other end is communicated with boiler induced-draft fan 8.
Described booster fan shearing device comprises inlet baffle 5 that is arranged on booster fan 3 porch and the outlet damper 6 that is arranged on booster fan 3 exits; Described bypass shearing device is a by-pass damper 7; Certain described booster fan shearing device and bypass shearing device also can be other shearing devices, as stop valve, butterfly valve.
Fig. 2 is the structural representation of the utility model embodiment two, as shown in the figure, the difference of present embodiment and embodiment one is: described flue gas desulfur device comprises two groups of described bypass flues 4, bypass shearing device, booster fan 3 and booster fan shearing devices, and is arranged in parallel between two groups.Present embodiment is compared with embodiment one, owing to be provided with the path of two groups of parallel connections, makes flue gas flow bigger, more can satisfy actual needs.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and the spirit and scope of the present utility model that do not depart from appended claims and limited.
Claims (4)
1. flue gas desulfur device, comprise desulfuration absorbing tower (1), be communicated with the gas approach (2) of desulfuration absorbing tower (1) smoke inlet and boiler induced-draft fan (8) and be arranged at booster fan (3) and booster fan shearing device on the gas approach (2), it is characterized in that: also comprise the bypass flue (4) in parallel with booster fan (3) and booster fan shearing device, bypass flue (4) is provided with the bypass shearing device, one end of described bypass flue (4) is communicated with desulfuration absorbing tower (1) smoke inlet, and the other end is communicated with boiler induced-draft fan (8).
2. flue gas desulfur device according to claim 1 is characterized in that: described booster fan shearing device comprises the inlet baffle (5) that is arranged on booster fan (3) porch and is arranged on the outlet damper (6) in booster fan (3) exit.
3. flue gas desulfur device according to claim 1 is characterized in that: described bypass shearing device is by-pass damper (7).
4. according to claim 1,2 or 3 described flue gas desulfur devices, it is characterized in that: described flue gas desulfur device comprises two groups of described bypass flues (4), bypass shearing device, booster fan (3) and booster fan shearing device, and is arranged in parallel between two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357650U CN201930707U (en) | 2011-02-10 | 2011-02-10 | Flue gas desulphurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357650U CN201930707U (en) | 2011-02-10 | 2011-02-10 | Flue gas desulphurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201930707U true CN201930707U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200357650U Expired - Lifetime CN201930707U (en) | 2011-02-10 | 2011-02-10 | Flue gas desulphurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201930707U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600706A (en) * | 2012-03-16 | 2012-07-25 | 上海申欣环保实业有限公司 | Method for running booster fans in coal-fired unit desulfurization system and system thereof |
| CN103521026A (en) * | 2013-09-27 | 2014-01-22 | 华电陕西能源有限公司 | Desulphurization boost fan system and control method thereof |
| CN106016322A (en) * | 2016-07-12 | 2016-10-12 | 中国神华能源股份有限公司 | Flue gas desulfurization equipment |
| CN106439876A (en) * | 2016-11-02 | 2017-02-22 | 中国神华能源股份有限公司 | Flue gas treatment device of boiler system and boiler system |
-
2011
- 2011-02-10 CN CN2011200357650U patent/CN201930707U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600706A (en) * | 2012-03-16 | 2012-07-25 | 上海申欣环保实业有限公司 | Method for running booster fans in coal-fired unit desulfurization system and system thereof |
| CN102600706B (en) * | 2012-03-16 | 2014-11-19 | 上海申欣环保实业有限公司 | Method for running booster fans in coal-fired unit desulfurization system and system thereof |
| CN103521026A (en) * | 2013-09-27 | 2014-01-22 | 华电陕西能源有限公司 | Desulphurization boost fan system and control method thereof |
| CN106016322A (en) * | 2016-07-12 | 2016-10-12 | 中国神华能源股份有限公司 | Flue gas desulfurization equipment |
| CN106016322B (en) * | 2016-07-12 | 2018-05-15 | 中国神华能源股份有限公司 | flue gas desulfurization device |
| CN106439876A (en) * | 2016-11-02 | 2017-02-22 | 中国神华能源股份有限公司 | Flue gas treatment device of boiler system and boiler system |
| CN106439876B (en) * | 2016-11-02 | 2019-01-04 | 中国神华能源股份有限公司 | The flue gas processing device and boiler system of boiler system |
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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: 20110817 |