CN207795313U - A kind of adjustable increasing steam turbine steam exhaust recycling system - Google Patents
A kind of adjustable increasing steam turbine steam exhaust recycling system Download PDFInfo
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- CN207795313U CN207795313U CN201721168988.8U CN201721168988U CN207795313U CN 207795313 U CN207795313 U CN 207795313U CN 201721168988 U CN201721168988 U CN 201721168988U CN 207795313 U CN207795313 U CN 207795313U
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Abstract
A kind of adjustable increasing steam turbine steam exhaust recycling system, including turbine low pressure cylinder (1), unit condenser or Air-Cooling Island (2), an at least table adjustable increase steam turbine (11), heated type condenser (8)；Adjustable increasing steam turbine (11) is equipped between the turbine low pressure cylinder (1) and unit condenser or Air-Cooling Island (2), adjustable increasing steam turbine (11) connect with heated type condenser (8), heated type condenser (8) is connect with the hot well (3) of unit condenser or Air-Cooling Island (2), the adjustable steam for increasing steam turbine (11) discharge enters heated type condenser (8) through pipeline, heated type condenser (8) is connected with heat supply network recirculated water, and the condensate-water polishing of heated type condenser (8) is recycled to hot well (3)；The latent heat of vaporization for recycling turbine low pressure cylinder steam exhaust, achievees the effect that energy-saving and emission-reduction.
Description
Technical field
The utility model belongs to power plant for energy conservation field, and in particular to a kind of adjustable increasing steam turbine steam exhaust recycling system.
Background technology
Exhaust steam in steam turbine heat supply is recycled using steam turbine is increased, has application case in power plant.
Increasing steam turbine, there are two types of structures, and one is fixed increasing steam turbines, and one is adjustable increasing steam turbines.
So-called fixed increasing steam turbine, that is, increase steam turbine throat's nozzle be it is fixed, it is unadjustable, can not adjust.It is so-called
Adjustable increasing steam turbine, that is, the throat's nozzle for increasing steam turbine are adjustable, and executing agency drives nozzle valve head to advance and retreat, to
Achieve the effect that adjust nozzle group valve flow area, to adapt to steam parameter, atmospheric temperature and for the variation of heat condition.
It is found in working practice, atmospheric temperature is becoming at any time, and heat power plant boiler and steam turbine operating mode are also constantly becoming
Change, is entirely dynamic which results in the power steam of increasing steam turbine, by suction steam exhaust and steam discharge parameter.
If recycling exhaust steam in steam turbine heat supply using fixed increasing steam turbine, entire heating system is difficult normal operation.
Utility model content
The purpose of this utility model is to provide a kind of adjustable increasing steam turbine steam exhaust of flexible and efficient Steam Turbine for thermal center
Energy system, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions：
A kind of adjustable increasing steam turbine steam exhaust recycling system, including turbine low pressure cylinder (1), unit condenser or air-cooled
Island (2), an at least table adjustable increase steam turbine (11), heated type condenser (8)；The turbine low pressure cylinder (1) and unit condensing
Adjustable increasing steam turbine (11) is equipped between device or Air-Cooling Island (2), adjustable increasing steam turbine (11) connect with heated type condenser (8),
Heated type condenser (8) is connect with the hot well (3) of unit condenser or Air-Cooling Island (2), the adjustable steaming for increasing steam turbine (11) and being discharged
Vapour enters heated type condenser (8) through pipeline, and heated type condenser (8) is connected with heat supply network recirculated water, heated type condenser (8)
Condensate-water polishing recycled to hot well (3).
Further, the turbine low pressure cylinder (1) is connected by steam exhaust pipeline (17) and unit condenser or Air-Cooling Island (2)
It connects, turbine low pressure cylinder (1) steam exhaust is entered by turbine low pressure cylinder steam exhaust pipeline (17) in condenser or Air-Cooling Island (2), institute
It states and is provided with condenser inlet isolation valve (16) on turbine low pressure cylinder steam exhaust pipeline (17).
Further, the adjustable air intake increased on the upside of steam turbine (11) is equipped with adjustable increasing steam turbine power steam pipeline
(14), described adjustable steam turbine power steam pipeline (14) one end that increases is connect with the air intake on the upside of adjustable increasing steam turbine (11),
Adjustable increasing steam turbine power steam pipeline (14) other end connection power steam input port, power steam is via adjustable increasing steam turbine
Power steam pipeline (14) enters adjustable increasing steam turbine (11), and the adjustable increasing steam turbine power steam pipeline (14) is equipped with dynamic
Power steam inlet isolating valve (15).
Further, the adjustable air intake increased on the downside of steam turbine (11) is connected with adjustable increasing steam turbine suction line
(12), the adjustable air intake increased on the downside of steam turbine suction line (12) one end connected adjustable increasing steam turbine (11), it is adjustable
Increase steam turbine suction line (12) other end connection turbine low pressure cylinder steam exhaust pipeline (17), the adjustable increasing steam turbine suction line
(12) it is equipped with suction inlet isolating valve (13).
Further, the adjustable steam drain for increasing steam turbine (11) is equipped with adjustable increasing turbine exhaust steam duct line (10), can
Mode increases steam turbine (11) and is connected on heated type condenser (8) by adjustable increasing turbine exhaust steam duct line (10), described adjustable
Increase turbine exhaust steam duct line (10) and is equipped with adjustable increasing steam turbine exhaust vent isolating valve (9).
Further, the heated type condenser (8) is connected to hot well (3) by condensate recovery line (7), and heated type is solidifying
The condensed water of vapour device (8) is recovered to through condensate recovery line (7) in hot well (3).
Further, blowdown valve (6), visor (5) and hot well isolating valve (4) are set on the condensate recovery line (7).
Further, hot well isolating valve (4) is set between the visor (5) and hot well (3), and visor (5) is solidifying with heated type
Blowdown valve (6) is set between vapour device (8).
Further, the adjustable increasing steam turbine (11) is the adjustable structure of adjustable nozzle.
Compared with prior art, the utility model has the beneficial effects that：
(1) adjustable increasing steam turbine steam exhaust recycling system provided by the utility model uses setting no less than one
Adjustable increasing steam turbine.The increasing steam turbine is not fixed nozzle formula.The increasing steam turbine is adjustable structure.Adjustable increasing steam turbine
(11) executing agency (18) is set, and executing agency (18) drives nozzle valve head to advance and retreat, logical to reach adjusting nozzle group valve
The effect of flow area, to adapt to the variation of external environment and steam parameter.
(2) adjustable increasing steam turbine steam exhaust recycling system, if supplied using fixed increasing steam turbine recycling exhaust steam in steam turbine
Heat, entire heating system are difficult normal operation.
Description of the drawings
Fig. 1 is the adjustable structural schematic diagram for increasing steam turbine steam exhaust recycling system.
In figure：1- turbine low pressure cylinders, 2- unit condensers, 3- hot wells, 4- hot wells isolating valve, 5- visors, 6- blowdown valves,
7- condensate liquids recovery line, 8- heat supply networks condenser, 9- increase steam turbine exhaust vent isolating valve, 10- increasing turbine exhaust steam ducts line, 11- can
Mode increases steam turbine, 12- increases steam turbine suction line, 13- suction inlets isolating valve, 14- increase steam turbine power steam pipeline, 15- power steams
Vapour inlet isolation valve, 16- condensers inlet isolation valve, 17- turbine low pressure cylinder steam exhaust pipeline, 18 increase steam turbine executing agency.
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 adjustable increasing steam turbine steam exhaust recycling system, including vapour
Turbine low pressure (LP) cylinder 1, unit condenser 2, hot well 3, heat supply network condenser 8 and adjustable increasing steam turbine 11 are arranged on the hot well 3 organic
Group condenser 2, is provided with adjustable increasing steam turbine 11, adjustable increasing steam turbine between the turbine low pressure cylinder 1 and unit condenser 2
11 connect with heat supply network condenser 8, and heat supply network condenser 8 is connect with hot well 3, and the adjustable steam for increasing the discharge of steam turbine 11 enters through pipeline
Heat supply network condenser 8, the condensed water of heat supply network condenser 8 are recovered to hot well 3 by pipeline and recycle.
In the present embodiment, further, the exhaust port of the turbine low pressure cylinder 1 passes through turbine low pressure cylinder steam exhaust pipe
Line 17 is connect with unit condenser 2, and 1 steam exhaust of turbine low pressure cylinder enters unit by turbine low pressure cylinder steam exhaust pipeline 17 and coagulates
In vapour device 2, condenser inlet isolation valve 16 is provided on turbine low pressure cylinder steam exhaust pipeline 17；On the adjustable increasing steam turbine 11
The air intake of side, which is equipped with, increases steam turbine power steam pipeline 14, described 14 one end of increasing steam turbine power steam pipeline and adjustable increasing steam turbine
The air intake connection of 11 upsides, increases 14 other end connection power steam input port of steam turbine power steam pipeline, power steam via
Increase steam turbine power steam pipeline 14 and enter adjustable increasing steam turbine 11, increases steam turbine power steam pipeline 14 and be equipped with power steam entrance
Isolating valve 15；The adjustable air intake for increasing 11 downside of steam turbine, which is connected with, increases steam turbine suction line 12, the increasing steam turbine sucking
12 one end connected adjustable of pipeline increases the air intake of 11 downside of steam turbine, and it is low that 12 other end of increasing steam turbine suction line is connected to steam turbine
Cylinder pressure steam exhaust pipeline 17, the increasing steam turbine suction line 12 are equipped with suction inlet isolating valve 13；The adjustable increasing steam turbine 11
Steam drain, which is equipped with, increases turbine exhaust steam duct line 10, and adjustable increasing steam turbine 11 is connected to heat supply network condenser by increasing turbine exhaust steam duct line 10
On 8, the increasing turbine exhaust steam duct line 10, which is equipped with, increases steam turbine exhaust vent isolating valve 9；The heat supply network condenser 8 passes through condensate liquid
Recovery line 7 is connected to hot well 3, and the condensed liquid recovery line of the condensed water of heat supply network condenser 87 is recovered in hot well 3, described cold
Blowdown valve 6, visor 5 and hot well isolating valve 4 are set in lime set recovery line 7, be arranged between the hot well 3 and visor 5 hot well every
From valve 4, blowdown valve 6 is set between visor 5 and heat supply network condenser 8；The adjustable increasing steam turbine 11 is internally provided with adjustable spray
Mouth valve head, executing agency (18) drive nozzle valve head to advance and retreat, to achieve the effect that adjust nozzle group valve flow area, with
Adapt to the variation of external environment and steam parameter..
Wherein, it puts into adjustable increasing steam turbine 11 and extracts 1 steam exhaust of turbine low pressure cylinder, the adjustable vapour for increasing steam turbine 11 and being discharged
Body heats hot net water into heat supply network condenser 8, and condensed water flows back into hot well 3 by pipeline, returns to therrmodynamic system and recycles.
The operation of the adjustable increasing steam turbine steam exhaust recycling system of the utility model is such, and steam exhaust heat supply is adjustable
Increase steam turbine to put into operation, concrete condition is as follows：
(b1), turbine low pressure cylinder (1) steam exhaust is cooling through unit condenser or Air-Cooling Island (2), and condenser or air-cooled is arranged
Island inlet isolation valve (16)；
(b2), adjustable increasing steam turbine (11) operation：Adjustable increasing steam turbine exhaust vent isolating valve (9), power are opened successively
Steam inlet isolating valve (15) and suction inlet isolating valve (13), adjustable increasing steam turbine (11) are put into operation；
(b3), adjustable increasing steam turbine (11) is adjusted：Adjustable increasing steam turbine (11) setting executing agency (18), executing agency
(18) drive nozzle valve head advance and retreat, to achieve the effect that adjust nozzle group valve flow area, with adapt to external environment and
The variation of steam parameter.
(b4), power steam enters adjustable increasing steam turbine (11) via adjustable increasing steam turbine power steam pipeline (14), leads to
It crosses the internal nozzle of adjustable increasing steam turbine (11) and forms supersonic airstream, establish inner vacuum environment, be drawn into adjustable increasing
The steam of steam turbine suction line (12), the adjustable suction line (12) for increasing steam turbine (11) connect turbine low pressure cylinder steam exhaust pipeline
(17) so that turbine low pressure cylinder (1) steam exhaust is constantly extracted；Heating steam after injection passes through adjustable increasing turbine exhaust steam duct
Line (10) enters heated type condenser (8), and after heating hot net water, steam is condensed, and condensed water is arranged through coagulation hydroenergy backwater pipeline (7)
It is recycled to people (3).
Adjustable increasing steam turbine steam exhaust recycling system provided by the utility model is taken out using 1 heat supply of turbine low pressure cylinder
Vapour extracts 1 steam exhaust of turbine low pressure cylinder, and injection goes out to meet the heating steam of heating parameter requirement, heats hot net water, recycling is weary
Heat in vapour, and the cold end loss of power plant can be reduced, even completely eliminated to the maximum extent, while maximum can be multiplied
Heating load.
Adjustable increasing steam turbine steam exhaust recycling system provided by the utility model, use setting no less than one can
Mode increases steam turbine.The increasing steam turbine is not fixed nozzle formula.The increasing steam turbine is adjustable structure.Adjustable increasing steam turbine (11) sets
Executing agency (18) is set, executing agency (18) drives nozzle valve head to advance and retreat, and nozzle group valve flow area is adjusted to reach
Effect, to adapt to the variation of external environment and steam parameter.
The adjustable increasing steam turbine steam exhaust recycling system of the utility model, do not change any equipment of former therrmodynamic system,
In the case of the safety of device and unit operation and economy, using turbine low pressure cylinder heat supply steam extraction injection steam exhaust as heat supply
Steam, maximum can be multiplied heating steam amount, when both having solved underload variable parameter operation, consume high-quality steam, increase
Coal consumption, and solve due to city dilatation, the problem of heat capacity deficiency.Meanwhile it is solved to greatest extent with the fixed heat fortune of electricity
The thermic load deficiency problem that line mode is brought.The heat recovery in steam exhaust is realized, while can be reduced to the maximum extent, even
The cold end loss for completely eliminating power plant improves the thermal efficiency of unit, reduces coal consumption for power generation.It is safe, non-maintaining, whole system
The state of no-rotary part, no mechanical wear, the output of guarantee system 100% is run steadily in the long term.
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 (9)
1. a kind of adjustable increasing steam turbine steam exhaust recycling system, including turbine low pressure cylinder (1), unit condenser or Air-Cooling Island
(2), an at least table adjustable increases steam turbine (11), heated type condenser (8)；The turbine low pressure cylinder (1) and unit condenser
Or adjustable increasing steam turbine (11) is equipped between Air-Cooling Island (2), adjustable increasing steam turbine (11) connect with heated type condenser (8), adds
Hot type condenser (8) is connect with the hot well (3) of unit condenser or Air-Cooling Island (2), the adjustable steam for increasing steam turbine (11) and being discharged
Enter heated type condenser (8) through pipeline, heated type condenser (8) is connected with heat supply network recirculated water, heated type condenser (8)
Condensate-water polishing is recycled to hot well (3).
2. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the steam turbine is low
Cylinder pressure (1) is connect by steam exhaust pipeline (17) with unit condenser or Air-Cooling Island (2), and turbine low pressure cylinder (1) steam exhaust passes through vapour
Turbine low pressure (LP) cylinder steam exhaust pipeline (17) enters in condenser or Air-Cooling Island (2), on the turbine low pressure cylinder steam exhaust pipeline (17)
It is provided with condenser inlet isolation valve (16).
3. adjustable increasing steam turbine steam exhaust recycling system according to claim 2, which is characterized in that the adjustable increasing
Air intake on the upside of steam turbine (11) is equipped with adjustable increasing steam turbine power steam pipeline (14), the adjustable increasing steam turbine power steam
Pipeline (14) one end is connect with the air intake on the upside of adjustable increasing steam turbine (11), and adjustable increasing steam turbine power steam pipeline (14) is another
One end connects power steam input port, and power steam enters adjustable increasing vapour via adjustable increasing steam turbine power steam pipeline (14)
Machine (11), the adjustable increasing steam turbine power steam pipeline (14) are equipped with power steam inlet isolation valve (15).
4. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the adjustable increasing
Air intake on the downside of steam turbine (11) is connected with adjustable increasing steam turbine suction line (12), the adjustable increasing steam turbine suction line
(12) one end connected adjustable increases the air intake on the downside of steam turbine (11), and adjustable increasing steam turbine suction line (12) other end connects vapour
Turbine low pressure (LP) cylinder steam exhaust pipeline (17), the adjustable increasing steam turbine suction line (12) are equipped with suction inlet isolating valve (13).
5. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the adjustable increasing
The steam drain of steam turbine (11) is equipped with adjustable increasing turbine exhaust steam duct line (10), and adjustable increasing steam turbine (11) passes through adjustable increasing steam turbine
Steam discharge pipeline (10) is connected on heated type condenser (8), and the adjustable increasing turbine exhaust steam duct line (10) is equipped with adjustable
Increase steam turbine exhaust vent isolating valve (9).
6. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the heated type is solidifying
Vapour device (8) is connected to hot well (3) by condensate recovery line (7), and the condensed water of heated type condenser (8) is through condensate recovery line
(7) it is recovered in hot well (3).
7. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the condensate recycling
Blowdown valve (6), visor (5) and hot well isolating valve (4) are set on pipeline (7).
8. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the visor (5)
Hot well isolating valve (4) is set between hot well (3), blowdown valve (6) is set between visor (5) and heated type condenser (8).
9. adjustable increasing steam turbine steam exhaust recycling system according to claim 1, which is characterized in that the adjustable increasing
Steam turbine (11) is the adjustable structure of adjustable nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168988.8U CN207795313U (en) | 2017-08-30 | 2017-08-30 | A kind of adjustable increasing steam turbine steam exhaust recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168988.8U CN207795313U (en) | 2017-08-30 | 2017-08-30 | A kind of adjustable increasing steam turbine steam exhaust recycling system |
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| Publication Number | Publication Date |
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| CN207795313U true CN207795313U (en) | 2018-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721168988.8U Active CN207795313U (en) | 2017-08-30 | 2017-08-30 | A kind of adjustable increasing steam turbine steam exhaust recycling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503808A (en) * | 2017-08-30 | 2017-12-22 | 联合瑞升（北京）科技有限公司 | A kind of adjustable increasing steam turbine exhaust steam recycling system |
| CN109578095A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of steam power plant's primary frequency control system |
-
2017
- 2017-08-30 CN CN201721168988.8U patent/CN207795313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503808A (en) * | 2017-08-30 | 2017-12-22 | 联合瑞升（北京）科技有限公司 | A kind of adjustable increasing steam turbine exhaust steam recycling system |
| CN109578095A (en) * | 2018-10-07 | 2019-04-05 | 联合瑞升（北京）科技有限公司 | A kind of steam power plant's primary frequency control system |
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