CN214403697U - One-extraction one-back steam turbine cogeneration heat supply and power generation system - Google Patents
One-extraction one-back steam turbine cogeneration heat supply and power generation system Download PDFInfo
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- CN214403697U CN214403697U CN202120233755.1U CN202120233755U CN214403697U CN 214403697 U CN214403697 U CN 214403697U CN 202120233755 U CN202120233755 U CN 202120233755U CN 214403697 U CN214403697 U CN 214403697U
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- steam turbine
- boiler
- backpressure
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- turbine
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- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 title claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000020169 heat generation Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The utility model discloses a take out a back of body steam turbine combined heat and power generation system, include: the boiler, the backpressure steam turbine, take out the steam turbine, high pressure feed water heater, low pressure feed water heater, condenser and heat exchanger, backpressure steam turbine and take out the steam turbine and all be connected with the boiler, the high back pressure exhaust pipe way that the backpressure steam turbine set up is connected with high pressure feed water heater, low back pressure exhaust pipe way is connected with low pressure feed water heater, take out one section bleeder line and the high pressure feed water heater of steam turbine and be connected, two-stage bleeder line and low pressure feed water heater are connected, it is connected with the boiler through the condenser to go the condenser pipeline, high back pressure exhaust pipe way, low back pressure exhaust pipe way, one section bleeder line all is connected with the boiler through pressure reducer and heat exchanger. This one take out back of body steam turbine cogeneration heat supply power generation system, it is rational in infrastructure, through back pressure steam turbine and the heat generation of taking out the heat supply of condensing the turbine joint, the power generation heat supply regulation ability reinforce can satisfy under the different operating mode heat user's with the heat demand.
Description
Technical Field
The utility model relates to an electric power cogeneration technical field provides a take out a back of body steam turbine cogeneration heat supply power generation system very much.
Background
The existing power supply heating system usually operates a backpressure turbine and an extraction steam turbine independently, and utilizes an exhaust channel of the backpressure turbine to supply steam to a heat consumer, but in winter, the heat supply generating capacity of the backpressure turbine is greatly limited by the heat consumer, in addition, when the peripheral heat consumers of a power plant are fewer, the backpressure turbine must simultaneously reduce the heat supply generating capacity, so that the economic benefit of the power plant is reduced, and even the power plant can be shut down because no heat source exists in summer.
Therefore, it is an urgent need to provide a new power supply and heating system to improve the regulation capability of power generation and heat supply.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a take out a back of body steam turbine combined heat and power generation system to solve the poor problem of current back pressure steam turbine power generation heating power supply regulation ability.
The utility model provides a technical scheme is: a cogeneration heating and power generation system with a back steam turbine, comprising: the system comprises a boiler, a back pressure turbine, a pumping steam turbine, a high pressure heater, a low pressure heater, a condenser and a heat exchanger, wherein the back pressure turbine and the pumping steam turbine are both connected with the boiler to receive steam from the boiler, the back pressure turbine is provided with a high back pressure steam exhaust pipeline and a low back pressure steam exhaust pipeline, the high back pressure steam exhaust pipeline is connected with the high pressure heater through a valve and is also connected with the boiler through a valve, a first temperature and pressure reducer and a heat exchanger, the low back pressure steam exhaust pipeline is connected with the low pressure heater through a valve and is also connected with the boiler through a valve, a second temperature and pressure reducer and a heat exchanger, the pumping steam turbine is provided with a first-section air exhaust pipeline, a second-section air exhaust pipeline and a condenser removal pipeline, the first-section air exhaust pipeline is connected with the high pressure heater through a valve and is also connected with the boiler through a valve, a third temperature and pressure reducer and a heat exchanger, and the second-section air exhaust pipeline is connected with the low pressure heater through a valve, the condenser removing pipeline is connected with the boiler through the condenser.
Preferably, the boiler is also connected with the boiler through a valve, a fourth temperature and pressure reducer and a heat exchanger.
Further preferably, an adjusting partition plate is arranged in the back pressure turbine, and the high back pressure exhaust pipeline and the low back pressure exhaust pipeline are respectively connected to the front side and the rear side of the adjusting partition plate.
Further preferably, the one-extraction one-back turbine cogeneration heat and power generation system further comprises an opening adjusting structure connected with the adjusting partition plate.
The utility model provides a pair of take out a back of body steam turbine combined heat and power generation system, adopt one to take out a back of body steam turbine, can effectively solve back pressure steam turbine exhaust passage and give the single problem of sending vapour of heat consumer, can realize the combined heat and power of two steam turbines, can satisfy under the different work condition heat consumer's the demand of using vapour, and can switch high pressure heater and low pressure heater steam supply through the valve, and then for boiler circulating water heating, in addition, the back pressure steam turbine adopts two steam exhaust pipelines to supply vapour for heat consumer, can adjust according to heat consumer's the heat of using, and then guarantee that the steam inlet volume of back pressure steam turbine is unchangeable almost, the generated energy is improved, make the benefit maximize of power plant.
The utility model provides a pair of take out a back of body steam turbine cogeneration heat supply power generation system, it is rational in infrastructure, through back pressure steam turbine and take out the combined heat supply electricity generation of condensing turbine, the power generation heat supply regulation ability is strong, can satisfy under the different work condition hot user's the demand for heat.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is a schematic structural view of a cogeneration heating and power generation system with a back-pumping turbine provided by the present invention.
Detailed Description
The invention will be further explained below with reference to specific embodiments, without limiting the invention.
As shown in fig. 1, the utility model provides a take out a back of body steam turbine combined heat and power generation system, include: boiler 1, backpressure steam turbine 2, extraction steam turbine 3, high pressure feed water heater 4, low pressure feed water heater 5, condenser 6 and heat exchanger 7, wherein, backpressure steam turbine 2 and extraction steam turbine 3 all are connected with boiler 1, receive the boiler and come vapour, backpressure steam turbine 2 is provided with high backpressure exhaust pipe 21 and low backpressure exhaust pipe way 22, high backpressure exhaust pipe way 21 is connected with high pressure feed water heater 4 through first valve, still is connected with boiler 1 through second valve, first temperature and pressure reduction ware 81 and heat exchanger 7, low backpressure exhaust pipe way 22 is connected with low pressure feed water heater 5 through the third valve, still is connected with boiler 1 through fourth valve, second temperature and pressure reduction ware 82 and heat exchanger 7, extraction turbine 3 is provided with one section bleed line 31, two-stage bleed line 32 and removes condenser pipeline 33, one section bleed line 31 is connected with high pressure feed water heater 4 through the fifth valve, the system is also connected with the boiler 1 through a sixth valve, a third temperature and pressure reducing device 83 and a heat exchanger 7, the two-section pumping pipeline 32 is connected with the low-pressure heater 5 through a seventh valve, the condenser removing pipeline 33 is connected with the boiler 1 through the condenser 6, the heat exchanger is used for supplying heat to a heat user, and hot steam after heat exchange is returned to the boiler for recycling.
This one take out back of body steam turbine cogeneration heat supply power generation system, adopt one to take out a back of body steam turbine, can effectively solve back pressure steam turbine exhaust passage and give the single problem of sending vapour of heat consumer, can realize the cogeneration of two steam turbines, can satisfy heat consumer's under the different work condition with vapour demand, and can supply vapour to high pressure feed water heater and low pressure feed water heater through the valve switching, and then for boiler circulating water heating, in addition, the back pressure steam turbine adopts two steam exhaust pipelines to supply vapour for heat consumer, can adjust according to heat consumer's with the heat, and then guarantee that back pressure steam turbine's steam admission volume is unchangeable almost, the generated energy is improved, make the benefit maximize of power plant.
As an improvement of the technical solution, as shown in fig. 1, the boiler 1 is further connected to the boiler 1 through an eighth valve, a fourth temperature and pressure reducer 84 and a heat exchanger 7, so that the boiler can directly supply heat to a heat user through steam from the boiler.
As an improvement of the technical solution, as shown in fig. 1, an adjusting partition plate 23 is arranged in the back pressure turbine 2, the high back pressure exhaust pipeline 21 and the low back pressure exhaust pipeline 22 are respectively connected to the front side and the rear side of the adjusting partition plate 23, and the heat consumption and the power generation amount can be adjusted under the condition of the same steam intake amount by adjusting the opening degree of the adjusting partition plate.
As an improvement of the technical solution, as shown in fig. 1, the cogeneration heating and power generation system with one extraction and one back turbine further includes an opening adjusting structure 9 connected to the adjusting partition 23, and the opening adjusting structure may be an existing structure, which is not described herein.
The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. A take out a back of body steam turbine combined heat and power generation system, its characterized in that includes: boiler (1), backpressure steam turbine (2), extraction steam turbine (3), high pressure heater (4), low pressure heater (5), condenser (6) and heat exchanger (7), wherein, backpressure steam turbine (2) and extraction steam turbine (3) all are connected with boiler (1), receive the boiler and come vapour, backpressure steam turbine (2) is provided with high backpressure exhaust steam pipe way (21) and low backpressure exhaust steam pipe way (22), high backpressure exhaust steam pipe way (21) are connected with high pressure heater (4) through first valve, still are connected with boiler (1) through second valve, first temperature and pressure reduction ware (81) and heat exchanger (7), low backpressure exhaust steam pipe way (22) are connected with low pressure heater (5) through the third valve, still are connected with boiler (1) through fourth valve, second temperature and pressure reduction ware (82) and heat exchanger (7), the condensing turbine (3) is provided with one section of air extraction pipeline (31), two sections of air extraction pipeline (32) and removes condenser pipeline (33), one section of air extraction pipeline (31) is connected with high pressure heater (4) through the fifth valve, still is connected with boiler (1) through sixth valve, third temperature and pressure reducer (83) and heat exchanger (7), two sections of air extraction pipeline (32) are connected with low pressure heater (5) through the seventh valve, remove condenser pipeline (33) process condenser (6) with boiler (1) is connected.
2. A cogeneration heating and power generation system with a back turbine according to claim 1, wherein: the boiler (1) is also connected with the boiler (1) through an eighth valve, a fourth temperature and pressure reducing device (84) and a heat exchanger (7).
3. A cogeneration heating and power generation system with a back turbine according to claim 1, wherein: be provided with in backpressure steam turbine (2) and adjust baffle (23), high back pressure exhaust steam pipe way (21) and low back pressure exhaust steam pipe way (22) connect respectively in the front side and the rear side of adjusting baffle (23).
4. A cogeneration heating and power generation system with a steam turbine having a back extraction turbine as claimed in claim 3, wherein: the device also comprises an opening degree adjusting structure (9) connected with the adjusting partition plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120233755.1U CN214403697U (en) | 2021-01-28 | 2021-01-28 | One-extraction one-back steam turbine cogeneration heat supply and power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120233755.1U CN214403697U (en) | 2021-01-28 | 2021-01-28 | One-extraction one-back steam turbine cogeneration heat supply and power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN214403697U true CN214403697U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120233755.1U Expired - Fee Related CN214403697U (en) | 2021-01-28 | 2021-01-28 | One-extraction one-back steam turbine cogeneration heat supply and power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810242A (en) * | 2022-04-15 | 2022-07-29 | 国核电力规划设计研究院有限公司 | Method and system for comprehensively utilizing steam source energy of back pressure steam turbine |
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2021
- 2021-01-28 CN CN202120233755.1U patent/CN214403697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810242A (en) * | 2022-04-15 | 2022-07-29 | 国核电力规划设计研究院有限公司 | Method and system for comprehensively utilizing steam source energy of back pressure steam turbine |
| CN114810242B (en) * | 2022-04-15 | 2023-10-20 | 国核电力规划设计研究院有限公司 | A method and system for comprehensive utilization of back-pressure steam turbine steam source energy |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |