CN111502785A - Steam pipe network of thermal power plant carries trigeminy and supplies system - Google Patents
Steam pipe network of thermal power plant carries trigeminy and supplies system Download PDFInfo
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- CN111502785A CN111502785A CN202010483155.0A CN202010483155A CN111502785A CN 111502785 A CN111502785 A CN 111502785A CN 202010483155 A CN202010483155 A CN 202010483155A CN 111502785 A CN111502785 A CN 111502785A
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- steam
- power plant
- thermal power
- energy supply
- pipe network
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/04—Using steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Abstract
The invention discloses a steam-conveying thermoelectric cooling energy supply system for a thermal power plant, which comprises a boiler, a steam turbine, a steam pipe network for supplying steam to the outside, and thermoelectric cooling energy supply devices arranged in any one or more of an industrial park, a data center and a building; the thermoelectric cooling energy supply device comprises any one or more of a steam single heat supply device, a steam-driven absorption refrigerating unit and a thermoelectric cooling triple generation unit; the steam supplied by the steam pipe network is from one or two of a boiler or a steam turbine of the thermal power plant; the steam pipe network connects the thermal power plant with any one or more of an industrial park, a data center and a building, and the steam from the thermal power plant boiler meets the requirements of any one or more of the industrial park, the data center and the building on heat supply, refrigeration and power generation. The invention utilizes three energy forms of supplying electricity, cold and heat to the outside by the steam pipe network, thereby avoiding the limit or problems of partition wall electricity selling, power grid capacity limit value, power peak regulation and the like.
Description
Technical Field
The invention relates to the technical field of steam energy supply of a thermal power plant, in particular to a steam pipe network conveying triple co-generation system of the thermal power plant.
Background
For long distance transportation of energy sources, the current means and media are mainly the following:
1. an electric power transmission line;
2. long-distance conveying pipelines for crude oil, fuel oil, natural gas and coal gas;
3. long-distance transportation of coal or other solid fuels by railway, highway, aviation, and the like;
4. the large-scale centralized heat supply pipe network carries the long distance pipe network system of the hot water of heat supply;
5. a pipeline or a pipe network system for conveying steam by the centralized heating steam pipe network;
6. a refrigeration pipe network system for conveying low-temperature cold water by a large-scale centralized refrigeration pipe network;
7. and a refrigeration pipe network system for conveying other low-temperature media.
At present, the external energy transmission of a thermal power plant mainly takes the electric power or heat demand for supplying cities as a main part, the heat supply mainly takes a centralized heat supply pipe network for transmitting hot water as a main part, and only individual cities have small-area steam heat supply pipe networks. However, the heat loss of the current steam heating is large, and the tail end only mainly meets the heating requirement of users. At present, along with the rapid development of data centers, the demands of data centers or digital cities for electric power and air conditioner refrigeration are increased more and more in the future, the demands of the whole society for electric power or refrigeration loads are increased more and more rapidly due to digitalization or informatization, numerous newly-built data centers or intelligent office buildings meet the demands of the air conditioner refrigeration loads by building voltage compression refrigeration units, and the voltage compression refrigeration has the problems of huge equipment investment, high daily electricity cost, standby equipment requirement and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a steam pipe network conveying triple supply system of a thermal power plant.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a steam transport heat and electricity cold energy supply system of thermal power plant, includes thermal power plant's boiler, steam turbine and is used for the steam pipe network to outer supply steam, still includes: thermoelectric cold energy supply devices disposed in any one or more of an industrial park, a data center, and a building;
the thermoelectric cooling energy supply device comprises any one or more of a steam single heat supply device, a steam-driven absorption refrigerating unit and a thermoelectric cooling triple generation unit;
the steam pipe network supplies steam to the outside from one or two of a boiler or a steam turbine of the thermal power plant to supply the steam required by the thermoelectric cooling energy supply device;
the steam pipe network connects the thermal power plant with any one or more of an industrial park, a data center and a building, and the steam from the thermal power plant is utilized to meet the requirements of any one or more of the industrial park, the data center and the building on heat supply, refrigeration and power generation.
Further, the steam from the boiler includes any one or a combination of main steam of a boiler of a thermal power plant, reheat steam, or steam generated by a heat exchanger provided in the boiler.
Further, the steam from the steam turbine comprises extraction steam of the steam turbine and/or exhaust steam of the steam turbine, and the extraction steam of the steam turbine is any one or more of extraction steam of a high-pressure cylinder, extraction steam of an intermediate-pressure cylinder or extraction steam of a low-pressure cylinder; the exhaust steam of the steam turbine is any one or more of high-pressure cylinder exhaust steam, intermediate-pressure cylinder exhaust steam or low-pressure cylinder exhaust steam.
Furthermore, the steam single heat supply device comprises an industrial steam heat supply device, a device for supplying domestic hot water by steam heat exchange, a steam heat supply device of a hotel or a bath center, and any one or more of a steam supply device of a food processing plant, a chemical plant or a printing and dyeing mill.
Furthermore, the steam-driven absorption refrigerating unit is any one or more of a lithium bromide absorption refrigerating unit or an ammonia absorption refrigerating unit, and the lithium bromide absorption refrigerating unit comprises any one or more of a single-effect, double-effect or multi-effect lithium bromide absorption refrigerating unit.
Furthermore, the combined heat and power generation unit is a combined heat and power supply back pressure unit which is located on the user side and is refrigerated by an absorption refrigerator driven by steam and driven by steam driven by a steam turbine to drive a generator to generate power, and the steam turbine exhausts steam to supply heat and the steam is driven by the steam.
Furthermore, the steam pipe network connects the thermal power plant with the industrial park, and the steam of the thermal power plant can meet the energy utilization requirements of the industrial park including one or more of industrial steam, industrial heat, industrial electricity and industrial cold by the thermoelectric cold energy supply device.
Furthermore, the steam pipe network connects the thermal power plant with the data center, and the steam of the thermal power plant can meet the energy utilization requirements of the data center including one or more of electricity utilization, air-conditioning refrigeration and heat supply through the thermoelectric cold energy supply device.
Furthermore, the steam pipe network connects the thermal power plant and the building, and the steam of the thermal power plant meets the requirements of the building on steam, hot water, air-conditioning refrigeration and electric power through the thermoelectric cold energy supply device.
Further, the temperature range of the steam in the steam pipe network is 110-550 ℃, and the superheat degree range is 0-100 ℃.
The invention has the beneficial effects that:
the technical scheme of the invention has the following beneficial technical effects:
1. the steam pipe network is used for supplying electricity, cold and heat to the outside, so that the limit or problems of partition wall electricity selling, power grid capacity limit value, power peak regulation and the like are avoided.
2. The steam pipe network is utilized to convey steam to the city, and then the absorption type unit is utilized for refrigeration, so that the high-efficiency utilization of energy with similar quality from heat to cold can be realized, and the waste of energy quality for preparing low-quality cold energy from high-quality electric energy is avoided.
3. The existing steam pipe network or industrial steam pipe network can be utilized, and a large amount of pipe network investment is saved.
4. The steam is conveyed to the tail end through the steam pipe network, and then the back pressure small unit for combined cooling, heating and power supply is driven, so that a high-efficiency energy utilization mode of combined cooling, heating and power of steam can be realized.
Drawings
FIG. 1 is a schematic diagram of the connection between a power generating unit and a steam pipe network in a thermal power plant according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a steam-conveying thermoelectric cooling energy supply system of a thermal power plant in an embodiment of the invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Example 1
Fig. 1 is a schematic diagram showing the connection between a power generating unit and a steam pipe network in a thermal power plant. The generating set of thermal power plant includes boiler 1, steam turbine 2, generator 3, feed water pump 11, oxygen-eliminating device 12, condenser 13, includes high pressure cylinder 21, intermediate pressure cylinder 22, low pressure cylinder 23 in the steam turbine 2.
This embodiment provides a steam transport heat and electricity cold energy supply system of thermal power plant, as shown in fig. 1-2, including boiler 1, steam turbine 2 of thermal power plant and be used for the steam pipe network 4 of external supply steam, still include: thermoelectric cold energy supply devices located in any one or more of the industrial park 5, the data center 6 and the building 7;
the thermoelectric cold energy supply device comprises any one or more of a steam single heat supply device 8, a steam-driven absorption refrigerating unit 9 and a thermoelectric cold triple generation unit 10;
the steam supplied from the steam pipe network 4 to the outside is from a boiler or a steam turbine of a thermal power plant, and supplies steam required by a thermoelectric cooling energy supply device;
the steam pipe network 4 connects the thermal power plant with an industrial park, a data center and a building, and the steam from the thermal power plant is utilized to meet the requirements of the industrial park, the data center and the building on heat supply, refrigeration and power generation.
The steam pipe network 4 can be operated in a commercial sale mode for supplying steam to the outside.
As shown in fig. 2, a cogeneration unit 10 for heat, electricity and cold is used in a data center 6, a steam-driven industrial steam single heating device 8 is used in an industrial park 5, a steam-driven absorption refrigerating unit 9 is used in a commercial building 71 such as an office building, a hotel and a shopping center in a building 7, and a civil steam single heating device 8 (such as a steam radiator) is used in a civil building 72 such as a residential building. In fact, the thermoelectric cold energy supply device of any one or more of the steam single heating device 8, the steam driven absorption refrigerating unit 9 and the thermoelectric cold triple generating unit 10 can be used no matter the industrial park, the data center or the building.
In the present embodiment, the steam from the boiler includes any one or a combination of main steam of a boiler of a thermal power plant, reheat steam, or steam generated by a heat exchanger provided in the boiler.
The steam from the turbine includes an extraction of the turbine or an exhaust of the turbine. The steam extraction of the steam turbine is any one or more of high-pressure cylinder steam extraction, intermediate-pressure cylinder steam extraction or low-pressure cylinder steam extraction; the exhaust steam of the steam turbine is any one or more of high-pressure cylinder exhaust steam, intermediate-pressure cylinder exhaust steam or low-pressure cylinder exhaust steam.
The steam single heat supply device 8 comprises an industrial steam heat supply device, a device for supplying domestic hot water by steam heat exchange, a steam heat supply device of a hotel or a bath center, and any one or more of steam supply devices of a food processing plant, a chemical plant or a printing and dyeing mill.
The steam-driven absorption refrigerating unit 9 is any one or two of a lithium bromide absorption refrigerating unit or an ammonia absorption refrigerating unit, and the lithium bromide absorption refrigerating unit comprises any one or more of a single-effect, double-effect or multi-effect lithium bromide absorption refrigerating unit.
The combined heat and power generation unit 10 is a combined heat and power supply back pressure unit which is located on a user side and is refrigerated by an absorption refrigerator driven by steam and driven by steam driven steam turbines to drive a generator to generate electricity, steam exhausted by the turbines to supply heat and steam driven.
Further, the temperature range of the steam in the steam pipe network is 110-550 ℃, and the superheat degree range is 0-100 ℃.
In this embodiment, as shown in fig. 2, the steam pipe network 4 further includes a condensed water return pipe, and the condensed water after heat exchange of the heat and cold electric energy supply device flows back to the condensed water return pipe and returns to the thermal power plant through the condensed water return pipe for recycling.
Example 2
The present embodiment is substantially the same as embodiment 1, and in this embodiment, the steam pipe network 4 connects the thermal power plant and the industrial park 5, and the steam of the thermal power plant is utilized to satisfy the energy utilization requirements of the industrial park including one or more of industrial steam, industrial heat, industrial electricity and industrial cold through the thermoelectric cold energy supply device.
Example 3
The embodiment is basically the same as the embodiment 1, in the embodiment, the steam pipe network 4 connects the thermal power plant and the data center 6, and the steam of the thermal power plant is utilized to meet the energy utilization requirements of the data center including one or more of electricity utilization, air-conditioning refrigeration and heat supply through a thermoelectric cold energy supply device.
Example 4
The present embodiment is basically the same as embodiment 1, and in the present embodiment, the steam pipe network 4 connects the thermal power plant and the building 7, and the steam of the thermal power plant is used to satisfy the requirements of the building on steam, hot water, air-conditioning refrigeration and electric power through the thermoelectric cold energy supply device.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a steam transport heat and electricity cold energy supply system of thermal power plant, includes thermal power plant's boiler, steam turbine and is used for the steam pipe network to outer supply steam, its characterized in that still includes: thermoelectric cold energy supply devices disposed in any one or more of an industrial park, a data center, and a building;
the thermoelectric cooling energy supply device comprises any one or more of a steam single heat supply device, a steam-driven absorption refrigerating unit and a thermoelectric cooling triple generation unit;
the steam pipe network supplies steam to the outside from one or two of a boiler or a steam turbine of the thermal power plant to supply the steam required by the thermoelectric cooling energy supply device;
the steam pipe network connects the thermal power plant with any one or more of an industrial park, a data center and a building, and the steam from the thermal power plant is utilized to meet the requirements of any one or more of the industrial park, the data center and the building on heat supply, refrigeration and power generation.
2. The steam-fed thermoelectric cold energy supply system of the thermal power plant as claimed in claim 1, wherein the steam from the boiler comprises any one or a combination of main steam, reheat steam of the boiler of the thermal power plant or steam generated by a heat exchanger provided in the boiler.
3. The steam-conveying thermoelectric cooling energy supply system of the thermal power plant as claimed in claim 1, wherein the steam from the steam turbine comprises an extraction steam of the steam turbine and/or an exhaust steam of the steam turbine, and the extraction steam of the steam turbine is any one or more of a high-pressure cylinder extraction steam, an intermediate-pressure cylinder extraction steam or a low-pressure cylinder extraction steam; the exhaust steam of the steam turbine is any one or more of high-pressure cylinder exhaust steam, intermediate-pressure cylinder exhaust steam or low-pressure cylinder exhaust steam.
4. The steam-conveying thermoelectric cooling energy supply system for the thermal power plant as claimed in claim 1, wherein the steam single heat supply device comprises any one or more of an industrial steam heat supply device, a device for supplying domestic hot water by steam heat exchange, a steam heat supply device of a hotel or a bath center, and a steam supply device of a food processing plant, a chemical plant or a printing and dyeing plant.
5. The steam-conveying thermoelectric cooling energy supply system of the thermal power plant as claimed in claim 1, wherein the steam-driven absorption refrigerating unit is any one or more of a lithium bromide absorption refrigerating unit or an ammonia absorption refrigerating unit, and the lithium bromide absorption refrigerating unit comprises any one or more of a single-effect, double-effect or multi-effect lithium bromide absorption refrigerating unit.
6. The steam-conveying thermoelectric cooling energy supply system of the thermal power plant as claimed in claim 1, wherein the thermoelectric cooling triple generation unit is a thermoelectric cooling triple supply back pressure unit which is located at a user side and is refrigerated by an absorption refrigerator driven by steam driven by a steam turbine to drive a generator to generate electricity, and by steam turbine exhaust steam to supply heat and steam driven by the absorption refrigerator.
7. The steam-conveying thermoelectric cooling energy supply system for the thermal power plant as claimed in claim 1, wherein the steam pipe network connects the thermal power plant with an industrial park, and the steam of the thermal power plant is utilized to meet the energy consumption requirements of the industrial park including one or more of industrial steam, industrial heat, industrial electricity and industrial cooling through the thermoelectric cooling energy supply device.
8. The steam-conveying thermoelectric cold energy supply system of the thermal power plant as claimed in claim 1, wherein the steam pipe network connects the thermal power plant and the data center, and the steam of the thermal power plant is utilized to meet the energy utilization requirements of the data center including one or more of electricity utilization, air-conditioning refrigeration and heat supply through the thermoelectric cold energy supply device.
9. The steam-conveying thermoelectric cold energy supply system of the thermal power plant as claimed in claim 1, wherein the steam pipe network connects the thermal power plant with the building, and the steam of the thermal power plant is utilized to meet the requirements of the building on steam, hot water, air-conditioning refrigeration and electric power through the thermoelectric cold energy supply device.
10. The steam-conveying thermoelectric cooling energy supply system for the thermal power plant as claimed in claim 1, wherein the temperature range of the steam in the steam pipe network is 110-550 ℃, and the superheat degree range is 0-100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483155.0A CN111502785A (en) | 2020-06-01 | 2020-06-01 | Steam pipe network of thermal power plant carries trigeminy and supplies system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483155.0A CN111502785A (en) | 2020-06-01 | 2020-06-01 | Steam pipe network of thermal power plant carries trigeminy and supplies system |
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| CN111502785A true CN111502785A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010483155.0A Pending CN111502785A (en) | 2020-06-01 | 2020-06-01 | Steam pipe network of thermal power plant carries trigeminy and supplies system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833440A (en) * | 2021-01-07 | 2021-05-25 | 中国华能集团清洁能源技术研究院有限公司 | Heat supply and cold supply system of heat-engine plant with external delivery multi-pipe network and operation method |
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2020
- 2020-06-01 CN CN202010483155.0A patent/CN111502785A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833440A (en) * | 2021-01-07 | 2021-05-25 | 中国华能集团清洁能源技术研究院有限公司 | Heat supply and cold supply system of heat-engine plant with external delivery multi-pipe network and operation method |
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