CN207795325U - A kind of increasing steam turbine system with AGC functions - Google Patents
A kind of increasing steam turbine system with AGC functions Download PDFInfo
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- CN207795325U CN207795325U CN201721168605.7U CN201721168605U CN207795325U CN 207795325 U CN207795325 U CN 207795325U CN 201721168605 U CN201721168605 U CN 201721168605U CN 207795325 U CN207795325 U CN 207795325U
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Abstract
A kind of increasing steam turbine system with AGC functions, including steam turbine high-pressure cylinder (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3), high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system, water conservancy project load system；High pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system are respectively connected to steam turbine high-pressure cylinder (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3), work independently for adjusting the quantity of steam into each cylinder；Each bypass control system is additionally coupled to water conservancy project load system, and the steam drawn using bypass carries out steam-water heat exchanging utilization with a variety of water conservancy project load components；Adjustable increasing steam turbine is set in bypass, quickly adjusts steam turbine load, is improved " climbing capacity " and " response speed " of peak load regulation, meanwhile, achieve the effect that " thermoelectricity decoupling ", has further improved " fired power generating unit flexibility peak regulation " quality.
Description
Technical field
The utility model belongs to power plant for energy conservation field, and in particular to a kind of increasing steam turbine system with AGC functions.
Background technology
Early stage, the main task of generating set was quota power generation and stable electric generation due to China's short of electricity.With China's electric power
Development, electricity consumption and power generation have balanced, or even the superfluous situation of power generation occur, and " amplitude and the frequency " of electricity consumption variation
Also increasing, power grid is balance electricity consumption and power generation in time, proposes higher peak regulation requirement to generating set, it is negative not require nothing more than unit
Lotus magnitude energy constantly regulate adjusts, and also requires fired power generating unit that will have AGC functions.
AGC, (AGC, Automatic Generation Control), Automatic Generation Control, core objective are " to ensure
System frequency is rated value "." quick response " and " Ramp Rate " when its core technology is exactly Load Regulation.
The rate of load change for participating in AGC units in power grid at present is 1.5%MCR (rated load)/min or so, load
Operating lag is less than 2 minutes.Unit load governing speed is improved, load responding delay time is reduced, this is to improve fired power generating unit
The direction of AGC levels.
Fired power generating unit Load Regulation, main there are three directions：1 boiler load increases or reduces, and steam turbine follows, to reach
To the effect for adjusting generation load；In the case that 2 boiler loads are certain, steam turbine load is adjusted, is born to reach to adjust to generate electricity
The effect of lotus；3 boilers and steam turbine load are all adjusted, and are increased or reduced, to have the function that adjust generation load.
For pure generating set, electric load is mainly adjusted by boiler.Steam turbine passively follows.Boiler load increase or
Reduce, increases or reduce the quantity of steam into steam turbine, to increase or reduce steam turbine output.
For thermoelectricity unit, non-for the hot season is pure generating set, and peak regulation method is similar to pure generating set；For the hot season
It when operation, first has to meet heat demand, heat supply is people's livelihood rigidity task, and power supply is then elastic task.Boiler and turbine negative
Lotus is all adjusted, mainly by Steam Turhine Adjustment.
In the case where boiler load is certain, high, medium and low cylinder pressure throttle flow mainly is adjusted by bypassing, reaches adjusting
The purpose of steam turbine load.High steam is arranged to bypass, open big or turns down, decreases or increases into high pressure cylinder quantity of steam, reduces
Or increases high pressure cylinder and contribute.It is referred to as high other.Middle pressure steam is arranged to bypass, open big or turns down, decreases or increases and is steamed into intermediate pressure cylinder
Vapour amount decreases or increases intermediate pressure cylinder output；It is other in abbreviation.Low-pressure steam is arranged to bypass, open big or turns down, decreases or increases entrance
Low pressure (LP) cylinder quantity of steam decreases or increases low pressure (LP) cylinder output.Referred to as low side.
It, can be only with low other adjusting when grid requirements Load Regulation amount is smaller；Grid requirements Load Regulation amount
It, can be only with middle other adjusting when more moderate.Middle side can be reduced simultaneously into the steam in intermediate pressure cylinder and low pressure (LP) cylinder
Amount；When grid requirements Load Regulation amount is bigger, it can be adjusted only with by height.High side can be reduced simultaneously into senior middle school
Quantity of steam in cylinder pressure and low pressure (LP) cylinder；When grid requirements Load Regulation amount bigger, high, medium and low three bypasses can be utilized simultaneously
It adjusts.
In steam by-pass, heat needs to be sent to heat exchangers for district heating, for heating heat supply network return water.Absorb bypass heat
Hot net water is admitted to heat-accumulator tank, temporarily stores.
When bypass is adjusted, response speed depends on the governing speed of reject steam flow.If controlled into vapour with valve
Amount, the unlatching of valve and closing speed are all slow, compare lag so as to cause AGC responses.A kind of comparing valve if can find
The faster system of governing speed, AGC responses can improve, to improve peak regulation quality.
Utility model content
The purpose of this utility model is to provide the generation load regulating systems of a kind of " quick response ", to improve load tune
Speed is saved, the problems mentioned above in the background art are solved.
To achieve the above object, the utility model provides the following technical solutions：
A kind of increasing steam turbine system with AGC functions, including steam turbine high-pressure cylinder (1), Steam Turbine Through IP Admission (2), steamer
Machine low pressure (LP) cylinder (3), high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system, water conservancy project load system；
It is characterized in that, high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system are respectively connected to steam turbine
High pressure cylinder (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3) work independently for adjusting the quantity of steam into each cylinder；
High pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system are further connected to water conservancy project load system, water
Work load system has a variety of water conservancy project load components, and the steam drawn using bypass is carried out carbonated drink with a variety of water conservancy project load components and changed
Heat utilization.
Further, high pressure turbine by regulating system includes high other increasing steam turbine (4) and mating pipe valve, and the height is other to increase vapour
The power steam interface (13) of machine (4) is connected with main steam line, high other sucking vapor interface (14) connection for increasing steam turbine (4)
Steam turbine No.1 bleed steam pipework (15), high other steam steam drain (17) the connection No.1 high-pressure heater (10) for increasing steam turbine (4).
Further, intermediate pressure by-pass regulating system includes middle other increasing steam turbine (5) and mating pipe valve, the middle other increasing vapour
The power steam interface (18) of machine (5) is connected with the cold end (19) of steam turbine reheater (16) or hot junction (20), middle other increasing vapour
Sucking vapor interface (21) the connection Steam Turbine Through IP Admission unicom pipeline (12) of machine (5), the middle other steam drain (22) for increasing steam turbine (5)
Connect high parameter heat exchangers for district heating (9).
Further, low voltage bypass regulating system includes low other increasing steam turbine (6) and mating pipe valve, the low other increasing vapour
The connected power steam interface (23) of machine (6) is connected with intermediate pressure cylinder unicom pipeline (12), the low other sucking steam for increasing steam turbine (6)
Interface (24) connects exhaust steam in steam turbine pipeline (25), low other steam drain (26) the connection heat supply network condenser (7) for increasing steam turbine (6).
Further, a variety of water conservancy project load components include that heat supply network condenser (7), heat exchangers for district heating (8), high parameter heat supply network add
Hot device (9), No.1 high-pressure heater (10), heat-accumulator tank (11)；Water conservancy project load system is by reject steam heat when being adjusted
Reasonable distribution is utilized into unit itself or heating network.
Further, heat supply network condenser (7) water inlet is connected with heat supply water return pipeline；Heat supply network condenser (7) goes out
The mouth of a river is connected with heat exchangers for district heating (8) water inlet and high parameter heat exchangers for district heating (25) water inlet；Heat exchangers for district heating (8) and height
Parameter heat exchangers for district heating (25) water system is in parallel；Heat exchangers for district heating (8) water outlet and high parameter heat exchangers for district heating (25) water outlet
Mouth is connected with heat-accumulator tank (11)；Heat exchangers for district heating (8) water outlet and heat-accumulator tank (11) water outlet all with heat supply outlet pipeline phase
Connection.
Further, the high other increasing steam turbine (4), middle other increasing steam turbine (5), the low other steam turbine (6) that increases are adjustable increasing vapour
Machine.
Compared with prior art, the utility model has the beneficial effects that：
Increasing steam turbine system provided by the utility model with AGC functions, is bypassed using steam-turbine, other with height,
Middle other, low three regulating systems in side.
Adjustable increasing steam turbine is set in bypass, substitutes valve.It is adjustable increase steam turbine be turned on and off speed be less than etc.
In 35 seconds, be considerably faster than valve was turned on and off speed.
It is turned on and off this fast advantage of speed using steam turbine is increased, steam turbine load is quickly adjusted, improves peak load regulation
" climbing capacity " and " response speed ", meanwhile, achieved the effect that " thermoelectricity decoupling ", further improve " fired power generating unit spirit
Active peak regulation " quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the increasing steam turbine system with AGC functions.
In figure：1- steam turbine high-pressure cylinders, 2- Steam Turbine Through IP Admissions, 3- turbine low pressure cylinders, 4- high are other to increase side in steam turbine, 5-
Increase the low other increasing steam turbine of steam turbine, 6-, 7- heat supply networks condenser, 8- heat exchangers for district heatings, 9- high parameters heat exchangers for district heating, 10- No.1 high pressures
Steam is sucked by the other power steam interface of heater, 11- heat-accumulator tanks, 12- Steam Turbine Through IP Admission unicom pipeline, 13- high, 14- high
Interface, 15- steam turbine No.1s bleed steam pipework, 16- reheaters, 17- high are other to increase other increasing steam turbine power steaming in steam turbine steam drain, 18-
It is other in vapour interface, 19- reheaters cold end, 20- reheaters hot junction, 21- to increase other increasing steam turbine row in steam turbine sucking vapor interface, 22-
Steam ports, 23- it is low it is other increase in steam turbine power steam interface, 24- it is other increase steam turbine sucking vapor interface, 25- exhaust steam in steam turbine pipeline,
The low other increasing steam turbine steam drains of 26-, 27- main steams, 28- heat supplies return water, 29- heat supplies water outlet.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the utility model embodiment, a kind of increasing steam turbine system with AGC functions, including steam turbine height
It is cylinder pressure (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3), high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low
Press bypass control system, water conservancy project load system；Wherein, high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass tune
Section system is respectively connected to steam turbine high-pressure cylinder (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3), works independently and is used for
Adjust the quantity of steam for entering each cylinder；High pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system also connect
It is connected to water conservancy project load system, the steam drawn using bypass carries out steam-water heat exchanging utilization with a variety of water conservancy project load components.
High pressure turbine by regulating system includes high other increasing steam turbine (4) and mating pipe valve, and the height is other to increase the dynamic of steam turbine (4)
Power vapor interface (13) is connected with main steam line, and the high other sucking vapor interface (14) for increasing steam turbine (4) connects steam turbine one
Number bleed steam pipework (15), high other steam steam drain (17) the connection No.1 high-pressure heater (10) for increasing steam turbine (4).
Intermediate pressure by-pass regulating system includes middle other increasing steam turbine (5) and mating pipe valve, and the middle other increasing steam turbine (5) is moved
Power vapor interface (18) is connected with the cold end (19) of steam turbine reheater (16) or hot junction (20), the middle other suction for increasing steam turbine (5)
Enter vapor interface (21) connection Steam Turbine Through IP Admission unicom pipeline (12), the middle other steam drain (22) for increasing steam turbine (5) connects senior staff officer
Number heat exchangers for district heating (9).
Low voltage bypass regulating system includes low other increasing steam turbine (6) and mating pipe valve, and the low other steam turbine (6) that increases is connected
Power steam interface (23) be connected with intermediate pressure cylinder unicom pipeline (12), the low other sucking vapor interface (24) for increasing steam turbine (6)
Connect exhaust steam in steam turbine pipeline (25), low other steam drain (26) the connection heat supply network condenser (7) for increasing steam turbine (6).
Water conservancy project load system has a variety of water conservancy project load components, including heat supply network condenser (7), heat exchangers for district heating (8), senior staff officer
Number heat exchangers for district heating (9), No.1 high-pressure heater (10), heat-accumulator tank (11).The water conservancy project being made of a variety of water conservancy project load components is born
G system can utilize reject steam heat reasonable distribution when being adjusted into unit itself or heating network.
Heat supply network condenser (7) water inlet is connected with heat supply water return pipeline；Heat supply network condenser (7) water outlet and heat supply network
Heater (8) water inlet is connected with high parameter heat exchangers for district heating (25) water inlet；Heat exchangers for district heating (8) adds with high parameter heat supply network
Hot device (25) water system is in parallel；Heat exchangers for district heating (8) water outlet and high parameter heat exchangers for district heating (25) water outlet and heat-accumulator tank
(11) it is connected；Heat exchangers for district heating (8) water outlet and heat-accumulator tank (11) water outlet are all connected with heat supply outlet pipeline.
The high other increasing steam turbine (4), middle other increasing steam turbine (5), the low other steam turbine (6) that increases are adjustable increasing steam turbine.
The adjusting method of the increasing steam turbine system with AGC functions, includes the following steps：
A, it when grid requirements Load Regulation amount is smaller, is adjusted merely by low voltage bypass regulating system is turned on and off
Save load；When low voltage bypass regulating system is run, heat will be sent to heat supply network condenser and heat exchangers for district heating, and heating heat supply network returns
Water, the hot net water for absorbing bypass heat are driven into heat-accumulator tank (11), temporarily store, proper time is sent to heat user.
B, when grid requirements Load Regulation amount is more moderate, system can be adjusted merely by intermediate pressure by-pass is turned on and off
It unites to adjust load；Intermediate pressure by-pass regulating system can be reduced simultaneously into the quantity of steam in intermediate pressure cylinder and low pressure (LP) cylinder；Middle other fortune
When row, heat will be sent to heat supply network condenser and high parameter heat exchangers for district heating, heat heat supply network return water, absorb the heat supply network of bypass heat
Water is driven into heat-accumulator tank (11), temporarily stores, proper time is sent to heat user.
It c, can be merely by being turned on and off high pressure turbine by regulating system when grid requirements Load Regulation amount is bigger
To adjust load；High pressure turbine by regulating system can be reduced simultaneously into the quantity of steam in high, intermediate pressure cylinder and low pressure (LP) cylinder；By high pressure
When road regulating system is opened, power generator load is very low, at this point, denitrification apparatus import smoke temperature can be very low, SCR device effect
Fruit can be very poor, at this point, when high other operation, heat will be sent to No.1 height and add, the throttle (steam) temperature that No.1 height adds when improving underload,
The water temperature into economizer is improved, to improve the flue-gas temperature into SCR device, improves denitration effect.
D, when grid requirements Load Regulation amount bigger, can utilize high pressure turbine by regulating system, intermediate pressure by-pass regulating system,
Three bypath systems of low voltage bypass regulating system are adjusted simultaneously.
Finally it should be noted that：The foregoing is merely the explanations of the utility model, are not intended to limit the utility model, to the greatest extent
The utility model is described in detail in pipe, for those skilled in the art, can still be remembered to aforementioned
The technical solution of load is modified or equivalent replacement of some of the technical features.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of increasing steam turbine system with AGC functions, including steam turbine high-pressure cylinder (1), Steam Turbine Through IP Admission (2), steam turbine
Low pressure (LP) cylinder (3), high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system, water conservancy project load system；Its
It is characterized in that, high pressure turbine by regulating system, intermediate pressure by-pass regulating system, low voltage bypass regulating system are respectively connected to steam turbine height
Cylinder pressure (1), Steam Turbine Through IP Admission (2), turbine low pressure cylinder (3) work independently for adjusting the quantity of steam into each cylinder；It is high
Pressure bypass control system, intermediate pressure by-pass regulating system, low voltage bypass regulating system are further connected to water conservancy project load system, water conservancy project
Load system has a variety of water conservancy project load components, and the steam drawn using bypass carries out steam-water heat exchanging with a variety of water conservancy project load components
It utilizes.
2. the increasing steam turbine system according to claim 1 with AGC functions, which is characterized in that high pressure turbine by regulating system
Including increasing steam turbine (4) and mating pipe valve, the high other power steam interface (13) and main steam pipe for increasing steam turbine (4) by height
Road is connected, and high other sucking vapor interface (14) the connection steam turbine No.1 bleed steam pipework (15) for increasing steam turbine (4), height is other to increase steam turbine
(4) steam steam drain (17) connection No.1 high-pressure heater (10).
3. the increasing steam turbine system according to claim 1 with AGC functions, which is characterized in that intermediate pressure by-pass regulating system
Including middle other increasing steam turbine (5) and mating pipe valve, the middle other power steam interface (18) for increasing steam turbine (5) and steam turbine are again
The cold end (19) of hot device (16) or hot junction (20) are connected, and the middle other sucking vapor interface (21) for increasing steam turbine (5) connects steam turbine
Intermediate pressure cylinder unicom pipeline (12), middle other steam drain (22) the connection high parameter heat exchangers for district heating (9) for increasing steam turbine (5).
4. the increasing steam turbine system according to claim 1 with AGC functions, which is characterized in that low voltage bypass regulating system
Including low other increasing steam turbine (6) and mating pipe valve, the low connected power steam interface (23) of other increasing steam turbine (6) and middle pressure
Cylinder unicom pipeline (12) is connected, low other sucking vapor interface (24) the connection exhaust steam in steam turbine pipeline (25) for increasing steam turbine (6), low
Side increases steam drain (26) the connection heat supply network condenser (7) of steam turbine (6).
5. the increasing steam turbine system according to claim 1 with AGC functions, which is characterized in that a variety of water conservancy project load components
Including heat supply network condenser (7), heat exchangers for district heating (8), high parameter heat exchangers for district heating (9), No.1 high-pressure heater (10), heat-accumulator tank
(11)；Water conservancy project load system utilizes reject steam heat reasonable distribution when being adjusted into unit itself or heating network.
6. the increasing steam turbine system according to claim 5 with AGC functions, which is characterized in that the heat supply network condenser (7)
Water inlet is connected with heat supply water return pipeline；Heat supply network condenser (7) water outlet and heat exchangers for district heating (8) water inlet and high parameter heat
Net heater (25) water inlet is connected；Heat exchangers for district heating (8) is in parallel with high parameter heat exchangers for district heating (25) water system；Heat supply network
Heater (8) water outlet and high parameter heat exchangers for district heating (25) water outlet are connected with heat-accumulator tank (11)；Heat exchangers for district heating (8) goes out
The mouth of a river and heat-accumulator tank (11) water outlet are all connected with heat supply outlet pipeline.
7. the increasing steam turbine system with AGC functions according to claim 2-4, which is characterized in that the high other increasing steam turbine
(4), middle other increasing steam turbine (5), the low other steam turbine (6) that increases are adjustable increasing steam turbine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721168605.7U CN207795325U (en) | 2017-08-30 | 2017-08-30 | A kind of increasing steam turbine system with AGC functions |
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| CN201721168605.7U CN207795325U (en) | 2017-08-30 | 2017-08-30 | A kind of increasing steam turbine system with AGC functions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559056A (en) * | 2017-08-30 | 2018-01-09 | 联合瑞升（北京）科技有限公司 | A kind of increasing steam turbine system and adjusting method with AGC functions |
| CN109578094A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of increasing steam turbine system for the decoupling of heat supply steam supply depth thermoelectricity |
| CN111206970A (en) * | 2018-11-21 | 2020-05-29 | 赫普科技发展（北京）有限公司 | Peak regulation system and control method for steam-injection steam extractor of thermal power plant |
-
2017
- 2017-08-30 CN CN201721168605.7U patent/CN207795325U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559056A (en) * | 2017-08-30 | 2018-01-09 | 联合瑞升（北京）科技有限公司 | A kind of increasing steam turbine system and adjusting method with AGC functions |
| CN107559056B (en) * | 2017-08-30 | 2023-09-08 | 联合瑞升（北京）科技有限公司 | Steam turbine increasing system with AGC function and adjusting method |
| CN109578094A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of increasing steam turbine system for the decoupling of heat supply steam supply depth thermoelectricity |
| CN111206970A (en) * | 2018-11-21 | 2020-05-29 | 赫普科技发展（北京）有限公司 | Peak regulation system and control method for steam-injection steam extractor of thermal power plant |
| CN111206970B (en) * | 2018-11-21 | 2024-03-01 | 赫普科技发展（北京）有限公司 | Peak regulating system utilizing steam jet and steam extractor in thermal power plant and control method |
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