CN204238988U - A kind of Thermal generation unit electric coupling steam-driven induced draft fan system - Google Patents
A kind of Thermal generation unit electric coupling steam-driven induced draft fan system Download PDFInfo
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- CN204238988U CN204238988U CN201420729176.6U CN201420729176U CN204238988U CN 204238988 U CN204238988 U CN 204238988U CN 201420729176 U CN201420729176 U CN 201420729176U CN 204238988 U CN204238988 U CN 204238988U
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- turbine
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- pipeline
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Abstract
The utility model discloses a kind of electric coupling steam-driven induced draft fan system, comprise: main steam turbine, vapour joint valve is adjusted in small turbine air inlet, small turbine, vapour condenser, small generators, motor and induced draught fan, enter small turbine from drawing gas of main steam turbine via after small turbine admission governor valve control flow.The steam discharge of small turbine enters the vapour condenser of main steam turbine.Small turbine drives small generators generating by coupling.Generate electricity can drive motor.Motoring induced draught fan works.Small turbine can be arranged in main steam turbine side, extraction line is shorter, and steam discharge directly accesses main vapour condenser, does not need to arrange small condenser system.This technology has advantages such as driving the small turbine system of induced draught fan is simple, Station Service Electrical-Energy rate is lower, increase electricity volume.
Description
Technical field
The invention belongs to coal-fired power generator set field, relate to a kind of Thermal generation unit electric coupling steam-driven induced draft fan system.
Background technique
The induced draught fan majority of current Thermal generation unit boiler adopts motoring, and part adopts small turbine to drive.The induced draught fan of motoring, its driving power, from the station service of power plant, drives the electric power system of induced draught fan simple, but has the shortcoming increasing Station Service Electrical-Energy amount, reduce electricity volume.The induced draught fan that small turbine drives, it drives steam drawing gas from main steam turbine, unit station-service electricity can be reduced, increase electricity volume, but small turbine needs to be arranged in boiler side, its admission pipeline is longer, crushing is larger, steam discharge needs to arrange independently small condenser system, and the pipeline of the water of condensation of small turbine input main steam turbine water of condensation is longer, crushing is comparatively large, causes small turbine system regulable control complicated.
Summary of the invention
The object of the invention is to the deficiency overcoming the existence of above-mentioned known technology, thus a kind of Thermal generation unit electric coupling steam-driven induced draft fan system is provided, unit station-service electricity can be reduced, increase electricity volume, small turbine regulable control is simple, air intake-exhaust pipeline crushing is adjustable, controlled raising electricity volume.
Realize above-mentioned purpose, the present invention proposes a kind of electric coupling steam-driven induced draft fan system.Can be arranged in main steam turbine side by driving the small turbine of induced draught fan, adopt main steam turbine to draw gas driving, extraction line adjustable in length, steam discharge directly accesses main vapour condenser, does not need to arrange small condenser system.Small turbine drives small generators generating.Small generators generates electricity and can be used for driving induced draught fan, and electricity more than needed can feed electrical network, increases power plant's electricity volume further.
This Thermal generation unit electric coupling steam-driven induced draft fan system comprises: main steam turbine, vapour joint valve is adjusted in small turbine air inlet, small turbine, vapour condenser, small generators, motor and induced draught fan, it is characterized in that: from main steam turbine draw gas via enter after small turbine admission governor valve control flow small turbine drive small turbine, the steam discharge of small turbine enters vapour condenser 3, and small turbine drives small generators generating drive motor, motoring induced draught fan.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system also comprises coupling, and described small turbine drives described small generators to generate electricity by coupling.
Preferably, described in this Thermal generation unit electric coupling steam-driven induced draft fan system, vapour condenser is the vapour condenser of main steam turbine, and the steam discharge of described small turbine directly passes into described vapour condenser, does not need to arrange small condenser, simplifies small turbine system regulable control.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system, also comprise the pipeline for drawing gas be connected between described main steam turbine and described small turbine, described pipeline is connected to form by multiple segment seal, by utilizing the pipeline section of varying number that duct length can be adjusted, main steam turbine side can be arranged in regulate admission crushing by driving the small turbine of induced draught fan.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system, also comprise the pipeline for steam discharge be connected between described small turbine and described vapour condenser, the described pipeline for steam discharge is connected to form by multiple segment seal, described pipeline is connected to form by multiple segment seal, utilizes the pipeline section of varying number can adjust duct length to regulate steam discharge crushing.
Preferably, this electric coupling steam-driven induced draft fan system, also comprises electrical network, and described motor regulates the air inducing size of induced draught fan by regulating power, and this motor accesses this electrical network by circuit.By regulating the generated energy of the size adjustment small generators of small turbine admission modulating valve, but motor self regulating power, when needs increase electricity volume further, the increase air feed of adjustable small turbine admission modulating valve thus increase the generated energy of small generators, by small generators send out electricity more than needed and feed electrical network, increase electricity volume further.
Beneficial effect of the present invention is:
(1) simplify system, operation controls and regulates simple;
(2) unit station-service electricity can be reduced, increase electricity volume;
(3) adjustable with the duct length of steam discharge for drawing gas, draw gas adjustable with steam discharge crushing, small turbine position is adjustable;
(4) electricity more than needed can feed electrical network, increases power plant's electricity volume further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of Thermal generation unit electric coupling steam-driven induced draft fan system of the present invention.
Fig. 2 is the schematic diagram of the pipeline for drawing gas and for steam discharge of the present invention.
1 small turbine admission modulating valve; 2 small turbines; The vapour condenser of 3 main steam turbines;
4 coupling; 5 small generators; 6 motor; 7 induced draught fans; 8 pipeline sections; 9 pipelines.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As depicted in figs. 1 and 2, a kind of Thermal generation unit electric coupling steam-driven induced draft fan system, comprise: main steam turbine, vapour joint valve 1 is adjusted in small turbine air inlet, small turbine 2, vapour condenser 3, small generators 5, motor 6 and induced draught fan 7, it is characterized in that: from main steam turbine draw gas via small turbine admission modulating valve 1 control flow laggard enter small turbine 2 drive small turbine, the steam discharge of small turbine 2 enters vapour condenser 3, and small turbine drives small generators 5 to generate electricity drive motor 6, and motor 6 drives induced draught fan.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system also comprises coupling 4, and described small turbine 2 drives described small generators 5 to generate electricity by coupling 4.
Preferably, described in this Thermal generation unit electric coupling steam-driven induced draft fan system, vapour condenser 3 is the vapour condenser of main steam turbine, and the steam discharge of described small turbine 2 directly passes into described vapour condenser 3.Make this system not need to arrange small condenser, simplify small turbine system regulable control.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system, also comprise the pipeline 9 for drawing gas be connected between described main steam turbine and described small turbine 2, described pipeline 9 is tightly connected by multiple pipeline section 8 and forms, and utilizes the pipeline section 8 of varying number can adjust extraction line length to regulate admission crushing.By utilizing the pipeline section 8 of varying number can adjust pipeline 9 length, main steam turbine side can be arranged in regulate admission crushing by driving the small turbine 2 of induced draught fan.
Preferably, this Thermal generation unit electric coupling steam-driven induced draft fan system, also comprise the pipeline 9 for steam discharge be connected between described small turbine 2 and described vapour condenser 3, described pipeline 9 is tightly connected by multiple pipeline section 8 and forms, described pipeline 9 is tightly connected by multiple pipeline section 8 and forms, and utilizes the pipeline section 8 of varying number can adjust blow-off line length to regulate steam discharge crushing.
Preferably, this electric coupling steam-driven induced draft fan system, also comprises electrical network, and described motor 6 regulates the air inducing size of induced draught fan 7 by regulating power, and this motor 6 accesses this electrical network 10 by circuit.By regulating the generated energy of the size adjustment small generators 5 of small turbine admission modulating valve 1, but induced draught fan self regulating power, when needs increase electricity volume further, the increase steam supply of adjustable small turbine admission modulating valve 1 thus increase the generated energy of small generators 5, by small generators 5 send out electricity more than needed and feed electrical network, increase electricity volume further.
Above-described embodiment is preferred embodiment of the present invention; be not the restriction of the present invention to technological scheme; as long as without the technological scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (6)
1. a Thermal generation unit electric coupling steam-driven induced draft fan system, comprise: main steam turbine, vapour joint valve (1) is adjusted in small turbine air inlet, small turbine (2), vapour condenser (3), small generators (5), motor (6) and induced draught fan (7), it is characterized in that: from main steam turbine draw gas via small turbine admission modulating valve (1) control flow laggard enter small turbine (2) drive small turbine, the steam discharge of small turbine (2) enters vapour condenser (3), small turbine drives small generators (5) generating drive motor (6), motor (6) drives induced draught fan.
2. electric coupling steam-driven induced draft fan system as claimed in claim 1, also comprise coupling (4), described small turbine (2) drives described small generators (5) to generate electricity by coupling (4).
3. electric coupling steam-driven induced draft fan system as claimed in claim 1, the vapour condenser that described vapour condenser (3) is main steam turbine, the steam discharge of described small turbine (2) directly passes into described vapour condenser (3).
4. electric coupling steam-driven induced draft fan system as claimed in claim 3, also comprise the pipeline (9) for drawing gas be connected between described main steam turbine and described small turbine (2), described pipeline (9) is tightly connected by multiple pipeline section (8) and forms, and utilizes the pipeline section of varying number (8) can adjust the length of described pipeline (9) to regulate admission crushing.
5. electric coupling steam-driven induced draft fan system as claimed in claim 3, also comprise the pipeline for steam discharge (9) be connected between described small turbine (2) and described vapour condenser (3), described pipeline (9) is tightly connected by multiple pipeline section (8) and forms, described pipeline (9) is tightly connected by multiple pipeline section (8) and forms, and utilizes the pipeline section of varying number (8) can adjust the length of described pipeline (9) to regulate steam discharge crushing.
6. electric coupling steam-driven induced draft fan system as claimed in claim 1, also comprises electrical network (10), and described motor (6) regulates the air inducing size of induced draught fan (7) by regulating power, and this motor (6) accesses this electrical network (10) by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729176.6U CN204238988U (en) | 2014-11-28 | 2014-11-28 | A kind of Thermal generation unit electric coupling steam-driven induced draft fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729176.6U CN204238988U (en) | 2014-11-28 | 2014-11-28 | A kind of Thermal generation unit electric coupling steam-driven induced draft fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204238988U true CN204238988U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729176.6U Withdrawn - After Issue CN204238988U (en) | 2014-11-28 | 2014-11-28 | A kind of Thermal generation unit electric coupling steam-driven induced draft fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204238988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454036A (en) * | 2014-11-28 | 2015-03-25 | 中国华能集团公司 | Electrical coupling steam-driven induced draft fan system of coal-fired generating unit |
| CN107476838A (en) * | 2017-08-02 | 2017-12-15 | 大唐东北电力试验研究所有限公司 | The cascaded utilization of energy system and utilization of power method of Thermal Power Station |
-
2014
- 2014-11-28 CN CN201420729176.6U patent/CN204238988U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454036A (en) * | 2014-11-28 | 2015-03-25 | 中国华能集团公司 | Electrical coupling steam-driven induced draft fan system of coal-fired generating unit |
| CN107476838A (en) * | 2017-08-02 | 2017-12-15 | 大唐东北电力试验研究所有限公司 | The cascaded utilization of energy system and utilization of power method of Thermal Power Station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |