CN206694081U - A kind of heat regenerative system for thermal power plant - Google Patents
A kind of heat regenerative system for thermal power plant Download PDFInfo
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- CN206694081U CN206694081U CN201720478454.9U CN201720478454U CN206694081U CN 206694081 U CN206694081 U CN 206694081U CN 201720478454 U CN201720478454 U CN 201720478454U CN 206694081 U CN206694081 U CN 206694081U
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 36
- 238000000605 extraction Methods 0.000 claims abstract description 53
- 238000005086 pumping Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000010025 steaming Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
It the utility model is related to field of thermal power, and in particular to a kind of heat regenerative system for thermal power plant.The heat regenerative system includes boiler (4), steam turbine high-pressure cylinder (5), high-pressure heater and the preposition devaporizer (1) being sequentially connected according to steam flow direction, and the steam turbine high-pressure cylinder (5) is connected by high pressure cylinder low-pressure pumping steam pipeline valve (7) and high pressure cylinder high pressure extraction pipeline valve (8) with the high-pressure heater and/or the preposition devaporizer (1).Heat regenerative system of the present utility model for thermal power plant improves performance of performance of the unit in wide load range especially in underload, so as to improve denitration efficiency of the unit in wide load especially underload, and simple system, feedwater crushing are smaller, operation is more flexible.
Description
Technical field
It the utility model is related to field of thermal power, and in particular to a kind of heat regenerative system for thermal power plant.
Background technology
The power industries in 2013 issued according to China Power federation run overview and learnt, China's fired power generating unit 2013
Average generating hourage be about 5000 hours, the perennial load rate of most of unit is all below 70%.
When unit is in compared with underrun, unit net coal consumption rate is apparently higher than coal consumption during its nominal output, therefore machine
Energy-saving potential under group running on the lower load is still very big.Therefore, height is included in today of energy-conserving and environment-protective situation sternness increasingly, research
Wide load power-saving technology including running on the lower load is particularly necessary.
The core of wide load power-saving technology is on the premise of unit high load performance is ensured, improves unit running on the lower load
Under performance, therefore solve the problems, such as the too high difficult point as technology successful application of heat consumption under unit running on the lower load.Low negative
Under lotus operating mode, the main reason for unit performance is poor, there is two：
1) device efficiency reduces, and if steam turbine is in underload, steam inlet condition and enters steam flow amount and all deviates rated designs point
It is very remote, therefore the isentropic efficiency of steam turbine can be significantly lower than the isentropic efficiency under rated load；
2) loop parameter deteriorates, as boiler feed temperature substantially reduces in underload, so that whole thermodynamic cycle
Endothermic temperature reduce, and then cause cycle efficieny reduce.
From the Analysis of Second Law of Thermodynamics, it should also be appreciated that, boiler feed temperature reduces, and increases boiler internal flue gas and pipe
The heat transfer temperature difference of interior feedwater, bigger entropy production and bigger loss will certainly be caused, therefore cycle efficieny is reduced and can hardly be avoided.
In addition, the feed temperature caused by underload reduces can also produce obvious influence to denitration efficiency.As the world
On selective catalytic reduction (SCR) denitration technology for being most widely used, its catalyst activity has directly with flue-gas temperature
Relation, research shows that only flue-gas temperature just can guarantee that the denitration efficiency of SCR device is higher more than 320 DEG C.And work as flue gas
When temperature is less than the temperature, SCR device denitration efficiency is decreased obviously.
Therefore the feed temperature under appropriate increase unit running on the lower load, can not only improve the cycle efficieny of unit, will also
Wholesome effect is brought to the denitration efficiency of unit.
Utility model content
The purpose of this utility model is that feed temperature is too low caused in low- load conditions in order to overcome prior art
A kind of the problem of efficiency of thermal cycle reduces and denitration efficiency declines, there is provided heat regenerative system for thermal power plant.This reality
Performance of the unit in wide load range is improved especially in underload with the new heat regenerative system for thermal power plant
When performance, so as to improve denitration efficiency of the unit in wide load especially underload, and simple system, feedwater crushing
It is smaller, operation it is more flexible.
To achieve these goals, the utility model provides a kind of heat regenerative system for thermal power plant, wherein, institute
State boiler, steam turbine high-pressure cylinder, high-pressure heater and preposition steaming that heat regenerative system includes being sequentially connected according to steam flow direction
Send out cooler, the steam turbine high-pressure cylinder by high pressure cylinder low-pressure pumping steam pipeline valve and high pressure cylinder high pressure extraction pipeline valve with it is described
High-pressure heater and/or the preposition devaporizer are connected.
Preferably, the high-pressure heater includes primary high pressure heater, final stage high-pressure heater and optional is arranged at
One or more intergrade high-pressure heaters between them.
Preferably, the steam turbine high-pressure cylinder passes through high pressure cylinder low-pressure pumping steam pipeline valve and high pressure cylinder high pressure extraction pipeline valve
With one in the final stage high-pressure heater, the optional intergrade high-pressure heater and the preposition devaporizer or
It is multiple to be connected.
Preferably, the steam turbine high-pressure cylinder passes through high pressure cylinder low-pressure pumping steam pipeline valve and high pressure cylinder high pressure extraction pipeline valve
It is connected with the final stage high-pressure heater.
Preferably, the high pressure cylinder low-pressure pumping steam pipeline valve and the high pressure cylinder high pressure extraction pipeline valve have steam flow
The function of regulation.
Preferably, the heat regenerative system also includes the Steam Turbine Through IP Admission for being arranged at the steam turbine high-pressure cylinder downstream, should
Steam Turbine Through IP Admission by intermediate pressure cylinder low-pressure pumping steam pipeline valve and intermediate pressure cylinder high pressure extraction pipeline valve and the high-pressure heater and/
Or the preposition devaporizer is connected.
Preferably, the Steam Turbine Through IP Admission passes through intermediate pressure cylinder low-pressure pumping steam pipeline valve and intermediate pressure cylinder high pressure extraction pipeline valve
It is connected with the preposition devaporizer.
Preferably, medium pressure cylinder low-pressure pumping steam pipeline valve and intermediate pressure cylinder high pressure extraction pipeline valve have steam flow regulation
Function.
Preferably, the jet chimney of the preposition devaporizer is passed through to the feedwater piping of the primary high pressure heater
In to increase the confluent of the primary high pressure heater.
Preferably, it is according to the equipment that is sequentially connected of direction of feedwater flowing in the heat regenerative system：It is water supply source, described
Primary high pressure heater, optional intermediate high-pressure heater, the final stage high-pressure heater, the preposition devaporizer and institute
State boiler.
Advantage of the heat regenerative system of the present utility model compared with existing heat regenerative system essentially consists in：
(1) performance of the unit in wide load range is improved：In underload, the feed temperature increase of unit can carry
The endothermic temperature of high whole thermodynamic cycle, so as to improve the cycle efficieny of therrmodynamic system, the increase of unit feed temperature is also
The heat transfer temperature difference of boiler internal can be reduced, so as to reduce the irreversible loss of boiler internal；
(2) denitration efficiency of the unit in wide load range is improved：The denitrification apparatus that fired power generating unit generally uses is to cigarette
Temperature degree clearly requires, and only can just ensure denitration efficiency higher than more than 320 DEG C into the cigarette temperature of denitrification apparatus
Efficiently, feed temperature when heat regenerative system of the present utility model can improve unit underload, improve indirectly and enter denitration and fill
The flue-gas temperature put, and then improve the denitration efficiency of denitrification apparatus；
(3) simple system of heat regenerative system of the present utility model, feedwater crushing are smaller, operation is more flexible.
Brief description of the drawings
Fig. 1 is the heat regenerative system for thermal power plant according to a kind of embodiment of the utility model.
Description of reference numerals
1 preposition devaporizer；2 final stage high-pressure heaters；3 primary high pressure heaters；
4 boilers；5 steam turbine high-pressure cylinders；6 Steam Turbine Through IP Admissions；7 high pressure cylinder low-pressure pumping steam pipeline valves；
8 high pressure cylinder high pressure extraction pipeline valves；9 intermediate pressure cylinder low-pressure pumping steam pipeline valves；
10 intermediate pressure cylinder high pressure extraction pipeline valves.
Embodiment
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower " used typically refers to join
Examine shown in the drawings upper and lower, the connection term used typically refers to the annexation shown in refer to the attached drawing.
The utility model provides a kind of heat regenerative system for thermal power plant, as shown in figure 1, wherein, the backheat
Boiler 4, steam turbine high-pressure cylinder 5, high-pressure heater and the preposition evaporation that system includes being sequentially connected according to steam flow direction are cold
But device 1, the steam turbine high-pressure cylinder 5 by high pressure cylinder low-pressure pumping steam pipeline valve 7 and high pressure cylinder high pressure extraction pipeline valve 8 with it is described
High-pressure heater and/or the preposition devaporizer 1 are connected.
In the utility model, by original draw gas vapour source upstream set up high pressure extraction vapour source and by original draw gas vapour source make
For low-pressure pumping steam vapour source, will former extraction line valve increase as low-pressure pumping steam pipeline valve (as shown in Figure 17 and 9) and in upstream
If high pressure extraction pipeline valve (as shown in Figure 18 and 10), efficient operation is kept under wide load condition so as to realize：
When unit is in heavy-duty service, when feed temperature meets performance requirement, high pressure extraction pipeline valve is closed, only with low-pressure pumping steam pipe
Road valve heating high-pressure heater and preposition steam condenser；When unit is in underrun, feed temperature reduces, and can now open
High pressure extraction pipeline valve is opened, high pressure extraction is taken out in increasing.This scheme for switching vapour source under different load operating mode of the utility model, with
The scheme that some prior arts set up final stage high-pressure heater is compared, can effectively solve the problem that set up caused by top heater to
The problem of increase of hydraulic pressure damage and equipment investment increase.
In the utility model, there is no particular limitation for the number of shown high-pressure heater, can be conventional according to this area
Number be configured, such as：The high-pressure heater can include primary high pressure heater 3, final stage high-pressure heater 2 and appoint
One or more (being, for example, 1-3) intergrade high-pressure heater being arranged between them of choosing.
In the utility model, the steam turbine high-pressure cylinder is a more wide in range concept, not only including described in routine
Steam turbine high-pressure cylinder, also including steam turbine ultra-high pressure cylinder.
In the utility model, the steam turbine high-pressure cylinder 5 can be with the high-pressure heater and/or the preposition evaporation
Cooler 1 is connected, but in order to make technique as simple as possible on the premise of higher efficiency is ensured, it is preferable that the steamer
Machine high pressure cylinder 5 is connected with only described high-pressure heater, i.e. according to a kind of preferred embodiment of the utility model, the steamer
Machine high pressure cylinder 5 passes through high pressure cylinder low-pressure pumping steam pipeline valve 7 and high pressure cylinder high pressure extraction pipeline valve 8 and the final stage high-pressure heater
2nd, one or more of the optional intergrade high-pressure heater and described preposition devaporizer 1 are connected.
Further, in order to make technique as simple as possible on the premise of higher efficiency is ensured, according to the utility model
A kind of preferred embodiment, the steam turbine high-pressure cylinder 5 pass through high pressure cylinder low-pressure pumping steam pipeline valve 7 and high pressure cylinder high pressure extraction
Pipeline valve 8 is only connected with the final stage high-pressure heater 2.
In the utility model, the high pressure cylinder low-pressure pumping steam pipeline valve 7 and the high pressure cylinder high pressure extraction pipeline valve 8 can
Think conventional high pressure extraction pipeline valve, it is preferable that the high pressure cylinder low-pressure pumping steam pipeline valve 7 and the high pressure cylinder high pressure extraction
Pipeline valve 8 has the function of steam flow regulation.So as to pass through the high pressure cylinder low pressure of the high pressure cylinder low-pressure pumping steam pipeline valve 7
Vapour source of drawing gas and the high pressure cylinder high pressure extraction vapour source for passing through the high pressure cylinder high pressure extraction pipeline valve 8 can be can mixed mode.
For example, in the operating mode of the amount of drawing gas deficiency, can be high by adjusting the high pressure cylinder low-pressure pumping steam pipeline valve 7 and the high pressure cylinder
Press extraction line valve 8 and use high pressure cylinder high pressure extraction vapour source and the mixed steam of high pressure cylinder low-pressure pumping steam vapour source.This practicality
The new this mixing by two kinds of vapour sources can further improve feedwater to increase the scheme of the heat exchange amount of high-pressure heater
Temperature, so as to solve the problems, such as high-pressure steam source vapour amount deficiency under some operating modes.
In the utility model, the heat regenerative system also generally includes to be arranged at the vapour in the downstream of steam turbine high-pressure cylinder 5
Turbine intermediate pressure cylinder 6.According to a kind of preferred embodiment of the utility model, the Steam Turbine Through IP Admission 6 is taken out by intermediate pressure cylinder low pressure
Vapour pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipeline valve 10 and the high-pressure heater and/or the phase of preposition devaporizer 1
Even.In order to make technique as simple as possible on the premise of higher efficiency is ensured, it is preferable that the Steam Turbine Through IP Admission 6 passes through
Medium pressure cylinder low-pressure pumping steam pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipeline valve 10 are connected with only described preposition devaporizer 1.
The utility model by Steam Turbine Through IP Admission 6 is set up intermediate pressure cylinder high pressure extraction pipeline valve 10 and with the preposition devaporizer
1 is connected, and so as to provide two kinds of vapour sources for preposition steaming cooler, so that it switches under different load operating mode, meets whole return
The performance of hot systems is optimal, and prior art is generally it is not intended that the preposition influence for steaming cooler.
In the utility model, medium pressure cylinder low-pressure pumping steam pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipeline valve 10 can be with
For the high pressure extraction pipeline valve of routine, it is preferable that medium pressure cylinder low-pressure pumping steam pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipeline valve
10 have the function of steam flow regulation.So as to pass through the intermediate pressure cylinder low-pressure pumping steam vapour of medium pressure cylinder low-pressure pumping steam pipeline valve 9
Source and the intermediate pressure cylinder high pressure extraction vapour source for passing through medium pressure cylinder high pressure extraction pipeline valve 10 can be can mixed mode.For example,
, can be by adjusting medium pressure cylinder low-pressure pumping steam pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipe in the operating mode of the amount of drawing gas deficiency
Road valve 10 and use intermediate pressure cylinder low-pressure pumping steam vapour source and the mixed steam of intermediate pressure cylinder high pressure extraction vapour source.
In the utility model, in order that resource makes full use of, it is preferable that by the steaming in the preposition devaporizer 1
Steam pipe road is passed through in the feedwater piping of the primary high pressure heater 3, steam phase transforming is added for water to increase the primary high pressure
The confluent of hot device 3.
In the utility model, it is preferable that the equipment being sequentially connected in the heat regenerative system according to the direction of feedwater flowing
It is：It is water supply source, the primary high pressure heater 3, optional intermediate high-pressure heater, the final stage high-pressure heater 2, described
Preposition devaporizer 1 and the boiler 4.
In the utility model, the primary high pressure heater 3, optional intermediate high-pressure heater, the final stage high pressure
It is provided with feedwater piping and jet chimney in heater 2, the preposition devaporizer 1, feedwater and steaming in feedwater piping
Steam generation heat exchange in steam pipe road, the temperature of feedwater is set to be increased to the temperature for meeting the requirement of boiler 4.
In the utility model, the water supply source can be oxygen-eliminating device and/or upper level heater.
According to a kind of specific embodiment of the heat regenerative system for thermal power plant of the present utility model, as shown in figure 1,
The heat regenerative system includes steam flow circuits and feedwater flow circuits, wherein the steam stream moving-wire road is included according to steam stream
Boiler 4, steam turbine high-pressure cylinder 5 and the Steam Turbine Through IP Admission 6 that dynamic direction is sequentially connected, wherein the steam turbine high-pressure cylinder 5 passes through
High pressure cylinder low-pressure pumping steam pipeline valve 7 and high pressure cylinder high pressure extraction pipeline valve 8 connect final stage high-pressure heater 2, in the steam turbine
Cylinder pressure 6 connects preposition devaporizer 1 by intermediate pressure cylinder low-pressure pumping steam pipeline valve 9 and intermediate pressure cylinder high pressure extraction pipeline valve 10；Institute
State feedwater flow circuits and be sequentially connected water supply source, primary high pressure heater 3, the final stage high pressure according to the direction of feedwater flowing
Heater 2, the preposition devaporizer 1 and the boiler 4；And the jet chimney of the preposition devaporizer 1 is passed through
To increase the confluent of the primary high pressure heater 3 in the feedwater piping of primary high pressure heater 3.Add in the primary high pressure
In hot device 3, the final stage high-pressure heater 2 and the preposition devaporizer 1, in the feedwater and jet chimney in feedwater piping
Steam generation heat exchange, the temperature of feedwater is increased to meet the temperature of the requirement of boiler 4.When the heat regenerative system is transported in high load capacity
During row, when feed temperature meets performance requirement, the high pressure cylinder high pressure extraction pipeline valve 8 and medium pressure cylinder high pressure extraction are closed
Pipeline valve 10, final stage high-pressure heater 2 only is heated with high pressure cylinder low-pressure pumping steam pipeline valve 7, with intermediate pressure cylinder low-pressure pumping steam pipeline valve 9
Heat preposition devaporizer 1；When unit is in underrun, feed temperature reduces, and it is high can now to open the high pressure cylinder
Extraction line valve 8 and medium pressure cylinder high pressure extraction pipeline valve 10 are pressed, high pressure extraction is taken out in increasing, now, high according to specific operating mode
Cylinder pressure low-pressure pumping steam pipeline valve 7 and/or intermediate pressure cylinder low-pressure pumping steam pipeline valve 9 can close, and can also open makes low-pressure pumping steam and high pressure
Draw gas and enter after mixing in high-pressure heater and/or preposition devaporizer.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to this.At this
In the range of the technology design of utility model, a variety of simple variants can be carried out to the technical solution of the utility model, including it is each
Technical characteristic is combined with any other suitable method, and these simple variants and combination should equally be considered as the utility model
Disclosure of that, belong to the scope of protection of the utility model.
Claims (10)
1. a kind of heat regenerative system for thermal power plant, it is characterised in that the heat regenerative system is included according to steam flowing side
To boiler (4), steam turbine high-pressure cylinder (5), high-pressure heater and the preposition devaporizer (1) being sequentially connected, the steam turbine
High pressure cylinder (5) passes through high pressure cylinder low-pressure pumping steam pipeline valve (7) and high pressure cylinder high pressure extraction pipeline valve (8) and the high-pressure heater
And/or the preposition devaporizer (1) is connected.
2. heat regenerative system according to claim 1, it is characterised in that the high-pressure heater includes primary high pressure heater
(3), final stage high-pressure heater (2) and the optional one or more intergrade high-pressure heaters being arranged between them.
3. heat regenerative system according to claim 2, it is characterised in that the steam turbine high-pressure cylinder (5) is low by high pressure cylinder
Press extraction line valve (7) and high pressure cylinder high pressure extraction pipeline valve (8) and the final stage high-pressure heater (2), it is described it is optional in
One or more of intercaste high-pressure heater and described preposition devaporizer (1) are connected.
4. heat regenerative system according to claim 3, it is characterised in that the steam turbine high-pressure cylinder (5) is low by high pressure cylinder
Pressure extraction line valve (7) and high pressure cylinder high pressure extraction pipeline valve (8) are connected with the final stage high-pressure heater (2).
5. according to the heat regenerative system described in any one in claim 1-4, it is characterised in that the high pressure cylinder low-pressure pumping steam pipe
Road valve (7) and the high pressure cylinder high pressure extraction pipeline valve (8) have the function of steam flow regulation.
6. heat regenerative system according to claim 1, it is characterised in that the heat regenerative system also includes being arranged at the steamer
The Steam Turbine Through IP Admission (6) in machine high pressure cylinder (5) downstream, the Steam Turbine Through IP Admission (6) pass through intermediate pressure cylinder low-pressure pumping steam pipeline valve (9)
It is connected with intermediate pressure cylinder high pressure extraction pipeline valve (10) with the high-pressure heater and/or the preposition devaporizer (1).
7. heat regenerative system according to claim 6, it is characterised in that the Steam Turbine Through IP Admission (6) is low by intermediate pressure cylinder
Pressure extraction line valve (9) and intermediate pressure cylinder high pressure extraction pipeline valve (10) are connected with the preposition devaporizer (1).
8. the heat regenerative system according to claim 6 or 7, it is characterised in that medium pressure cylinder low-pressure pumping steam pipeline valve (9) and
Intermediate pressure cylinder high pressure extraction pipeline valve (10) has the function of steam flow regulation.
9. heat regenerative system according to claim 2, it is characterised in that by the steam pipe of the preposition devaporizer (1)
Road is passed through in the feedwater piping of the primary high pressure heater (3) to increase the confluent of the primary high pressure heater (3).
10. heat regenerative system according to claim 2, it is characterised in that according to the side of feedwater flowing in the heat regenerative system
It is to the equipment being sequentially connected：Water supply source, the primary high pressure heater (3), optional intermediate high-pressure heater, the end
Level high-pressure heater (2), the preposition devaporizer (1) and the boiler (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720478454.9U CN206694081U (en) | 2017-05-02 | 2017-05-02 | A kind of heat regenerative system for thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720478454.9U CN206694081U (en) | 2017-05-02 | 2017-05-02 | A kind of heat regenerative system for thermal power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868922A (en) * | 2018-06-29 | 2018-11-23 | 东方电气集团东方汽轮机有限公司 | A kind of therrmodynamic system using back pressure type feed pump turbine and main steam turbine |
| CN110925036A (en) * | 2019-12-08 | 2020-03-27 | 国网山西省电力公司电力科学研究院 | Low-pressure cylinder flexible output cooling system under steam extraction heat supply working condition and operation method thereof |
| CN114183744A (en) * | 2021-10-15 | 2022-03-15 | 华北电力科学研究院有限责任公司 | Wind heating safety control system |
-
2017
- 2017-05-02 CN CN201720478454.9U patent/CN206694081U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868922A (en) * | 2018-06-29 | 2018-11-23 | 东方电气集团东方汽轮机有限公司 | A kind of therrmodynamic system using back pressure type feed pump turbine and main steam turbine |
| CN110925036A (en) * | 2019-12-08 | 2020-03-27 | 国网山西省电力公司电力科学研究院 | Low-pressure cylinder flexible output cooling system under steam extraction heat supply working condition and operation method thereof |
| CN110925036B (en) * | 2019-12-08 | 2022-04-12 | 国网山西省电力公司电力科学研究院 | Low-pressure cylinder flexible output cooling system under steam extraction heat supply working condition and operation method thereof |
| CN114183744A (en) * | 2021-10-15 | 2022-03-15 | 华北电力科学研究院有限责任公司 | Wind heating safety control system |
| CN114183744B (en) * | 2021-10-15 | 2024-03-01 | 华北电力科学研究院有限责任公司 | Wind heating safety control system |
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