CN114623430A - Long-distance water-heat simultaneous conveying system - Google Patents
Long-distance water-heat simultaneous conveying system Download PDFInfo
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- CN114623430A CN114623430A CN202210193066.1A CN202210193066A CN114623430A CN 114623430 A CN114623430 A CN 114623430A CN 202210193066 A CN202210193066 A CN 202210193066A CN 114623430 A CN114623430 A CN 114623430A
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- 239000013505 freshwater Substances 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000002360 preparation method Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 238000000926 separation method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000010842 industrial wastewater Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 239000013535 sea water Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 15
- 238000005265 energy consumption Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
- F04B37/20—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids for wet gases, e.g. wet air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/06—Pipe-line systems for gases or vapours for steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/06—Steam central heating systems operating with superheated steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/08—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to a long-distance hydrothermal simultaneous delivery system taking high-pressure steam as a medium, which comprises: fresh water preparation facilities, fresh water supercharging device, heat source device, long defeated pipeline of steam and end device that connect gradually, wherein: the fresh water preparation device is used for preparing fresh water, a water source inlet of the fresh water preparation device is connected with an external water source, and a fresh water outlet of the fresh water preparation device is connected with a fresh water inlet of the heat source device through a fresh water supercharging device; the heat source device is used for heating the fresh water into steam with preset pressure, and a first steam outlet of the heat source device is connected with the tail end device through a long-distance steam conveying pipeline; the end device is adapted to be connected to a user end and is configured to extract heat from the steam for supply to a hot user and condense the steam into water for supply to the water user. The long-distance hydrothermal simultaneous delivery system disclosed by the invention can be used for long-distance delivery of high-pressure steam through a one-way pipeline, so that the delivery loss and the investment cost are reduced, heat and water are supplied, and hydrothermal simultaneous delivery is realized.
Description
Technical Field
The invention belongs to the field of heat supply and water supply, and particularly relates to a long-distance water heat simultaneous delivery system taking high-pressure steam as a medium.
Background
With the development of economy, the public demand for living quality is increasing, and thermal power plants (including thermal power plants with heating functions) as the main power source for urban operation are becoming more and more unsuitable for being continuously left in urban areas with high population density. Clean nuclear power can replace part of thermal power to play an important role, and nuclear power plants are all built in places far away from residences. However, many segments of production and life activities have large heat demands, which depend on thermal power plants such as thermal power plants and nuclear power plants. It can be seen that how to resolve the contradiction between the separation of the supply end and the demand end, the long-distance transportation of heat from a suburban power plant to target users such as urban areas and industrial parks is a key technical problem which needs to be solved urgently at present.
Compared with hot water, the steam carries huge condensation latent heat, has higher heat quality and can meet the heat supply requirements of different levels from resident heat supply to industrial production steam. In addition, the steam does not form obvious static pressure due to height difference like water, the influence of topography fluctuation on the pressure of the pipeline does not need to be considered, and the steam has better compressibility and is difficult to generate the water hammer phenomenon commonly seen in the water conveying pipeline. In addition, the steam is condensed into water after releasing heat, and water can be provided to a water user. In conclusion, the steam long-distance heat supply technology combined with fresh water preparation can realize efficient and safe simultaneous delivery of water and heat, a single-pass pipeline can replace a traditional two-pass pipeline for supplying and returning hot water, and the construction cost of a pipe network is remarkably reduced. However, the density of the steam is small, the flow velocity in the pipe is high, and the flow resistance is large for long-distance transportation. The long-distance hydrothermal co-delivery system in the prior art does not relate to how to efficiently deliver steam long distances with low energy consumption.
Disclosure of Invention
In order to solve all or part of the problems, the invention aims to provide a long-distance hydrothermal simultaneous delivery system taking high-pressure steam as a medium, which is used for long-distance delivery of the high-pressure steam from a suburban thermal power plant to a city or an industrial park through a single-way pipeline, so that heat and water are supplied, hydrothermal simultaneous delivery is realized, and energy consumption is reduced. High pressure delivery can significantly reduce steam flow rate, thereby reducing delivery losses.
The application provides a long distance hydrothermal is with sending system, including the fresh water preparation facilities, fresh water supercharging device, heat source device, the long-distance pipeline of steam and the end equipment that connect gradually, wherein: the fresh water preparation device is used for preparing fresh water, a water source inlet of the fresh water preparation device is connected with an external water source, and a fresh water outlet of the fresh water preparation device is connected with a fresh water inlet of the heat source device through a fresh water supercharging device; the heat source device is used for heating the fresh water into steam with preset pressure, and a first steam outlet of the heat source device is connected with the tail end device through a long-distance steam conveying pipeline; the end device is adapted to be connected to a user end and is configured to extract heat from the steam for supply to a hot user and condense the steam into water for supply to the water user.
In some embodiments, the heat source device further comprises a second steam outlet, and the second steam outlet is connected with the driving inlet of the fresh water preparation device.
In some embodiments, a steam generating device and a superheater are arranged in the heat source device, wherein a fresh water inlet of the heat source device is sequentially connected with an inlet of the steam generating device, an outlet of the steam generating device, an inlet of the superheater, an outlet of the superheater and a first steam outlet of the heat source device, and the superheater is used for heating steam generated in the steam generating device to a preset state.
In some embodiments, a steam generation device and a first steam compression device are arranged in the heat source device, a fresh water inlet of the heat source device is sequentially connected with an inlet of the steam generation device, an outlet of the steam generation device, an inlet of the first steam compression device, an outlet of the first steam compression device, and a first steam outlet of the heat source device, and the first steam compression device is used for compressing the steam generated by the steam generation device to a preset state.
In some embodiments, a steam generating device and an isolating heat exchange device are arranged in the heat source device, wherein the isolating heat exchange device comprises a high-temperature side and a low-temperature side, an inlet of the high-temperature side is sequentially connected with an outlet of the high-temperature side, an inlet of the steam generating device and an outlet of the steam generating device, a fresh water inlet of the heat source device is sequentially connected with an inlet of the low-temperature side, an outlet of the low-temperature side and a steam outlet of the heat source device, and the isolating heat exchange device is used for isolating the internal circulation of the heat source device from the delivered steam.
In some embodiments, the vapor compression system further comprises a plurality of second vapor compression devices, the second vapor compression devices are arranged on the vapor long-distance pipeline, and when the number of the second vapor compression devices is greater than 2, the plurality of second vapor compression devices are arranged at intervals of a preset distance.
In some embodiments, a hydrothermal separation device is arranged in the end device, and is used for releasing heat in the steam and supplying the heat to a hot user, and meanwhile, the steam releases heat and condenses into water and supplies the water to the water user, wherein the hydrothermal separation device is selected from one of a heat exchanger, an absorption heat exchanger unit and an absorption waste heat recovery unit.
In some embodiments, a steam turbine is also disposed within the end unit, and the steam turbine is connected to the inlet of the hydrothermal separation unit.
In some embodiments, the fresh water preparation device is selected from any one or more of a reverse osmosis membrane method fresh water preparation unit, a multistage flash evaporation fresh water preparation unit, a multi-effect distillation fresh water preparation unit and a hydrothermal coproduction fresh water preparation unit; the water source of the fresh water preparation device is one or more of seawater, river and lake water, industrial wastewater and domestic sewage.
In some embodiments, the heat source device is a thermal power plant and/or a nuclear power plant.
The long-distance hydrothermal simultaneous delivery system can efficiently and safely deliver heat produced by the heat source device to a user in a high-temperature and high-pressure steam mode in a long distance, has low delivery loss, can supply water while supplying heat, and realizes hydrothermal simultaneous delivery. Therefore, the contradiction that the heat source is separated from the user in the current and future urban development process can be effectively solved.
Drawings
Fig. 1 is a system connection diagram of a first embodiment of a long-distance hydrothermal co-delivery system according to an embodiment of the present invention;
fig. 2 is a system connection diagram of a second embodiment of a long-distance hydrothermal co-delivery system according to an embodiment of the present invention;
fig. 3 is a schematic system connection diagram of a third embodiment of a long-distance hydrothermal co-delivery system according to an embodiment of the present invention;
fig. 4 is a schematic system connection diagram of a fourth embodiment of a long-distance hydrothermal co-delivery system according to an embodiment of the present invention;
fig. 5 is a schematic system connection diagram of a fifth embodiment of the long-distance hydrothermal co-delivery system according to the embodiment of the invention;
fig. 6 is a schematic diagram illustrating system connection of a sixth embodiment of a long-distance hydrothermal simultaneous transportation system according to an embodiment of the present invention;
fig. 7 is a system connection diagram of a seventh embodiment of a long-distance hydrothermal co-delivery system according to an embodiment of the present invention;
fig. 8 is a system connection diagram of an eighth embodiment of the long-distance hydrothermal co-transport system according to the embodiment of the present invention.
Detailed Description
For better understanding of the purpose, structure and function of the present invention, a long-distance hydrothermal co-feeding system of the present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 shows a system connection schematic of a first embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. The long-distance hydrothermal simultaneous conveying system 100 comprises a fresh water preparation device 1, a fresh water supercharging device 2, a heat source device 3, a steam long-distance pipeline 4 and a tail end device 5 which are connected in sequence, wherein: the fresh water preparation device 1 is used for preparing fresh water, a water source inlet 11 of the fresh water preparation device 1 is connected with an external water source, a fresh water outlet 12 of the fresh water preparation device 1 is connected with a fresh water inlet 31 of the heat source device 3 through the fresh water supercharging device 2, and a concentrated wastewater outlet 13 of the fresh water preparation device 1 discharges concentrated wastewater generated in the process of preparing fresh water; the heat source device 3 is used for heating the fresh water into steam (high-pressure steam) with preset pressure, and a first steam outlet 32 of the heat source device 3 is connected with the end device 5 through the long-distance steam transmission pipeline 4; the end device 5 is intended to be connected to a user end and is configured to take heat from the steam to a hot user 51 and condense the steam into water to a water user 52.
The fresh water pressurizing device 2 mentioned in the present application may be added with a pump. In use of the long-distance hydrothermal co-delivery system 100 of the present application, the fresh water producing apparatus 1 is connected to an external water source for inputting the water source for producing fresh water. The fresh water enters the heat source device 3 to be heated after being pressurized by the fresh water pressurizing device 2, so that the fresh water forms high-temperature and high-pressure steam. The high-temperature and high-pressure steam is transported to a remote end device 5 in a long distance through a long steam transportation pipeline 4, the end device 5 takes heat from the steam and supplies the heat to a user 51, and the steam is condensed into water and supplies the water to a user 52, so that long-distance water and heat simultaneous transportation is finally completed.
Through the long-distance hydrothermal simultaneous delivery system 100, heat produced by the heat source device 3 can be efficiently and safely delivered to a user in a long-distance mode in the form of high-temperature and high-pressure steam, water can be supplied while heat is supplied, and hydrothermal simultaneous delivery is achieved. Therefore, the contradiction that the heat source is separated from the user in the current and future urban development process can be effectively solved.
Fig. 2 shows a system connection diagram of a second embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. Wherein, the heat source device 3 can further comprise a second steam outlet 37, and the second steam outlet 37 is connected with the driving inlet of the fresh water preparing device 1.
The fresh water preparation device 1 in the application can be any one or more of a multi-stage flash evaporation, multi-effect distillation, hydrothermal coproduction and other thermal method fresh water preparation units. In this embodiment, the second steam outlet 37 of the heat source device 3 is connected to the driving inlet of the fresh water producing device 1, so that the high-temperature and high-pressure steam in the heat source device 3 can be effectively utilized, and at the same time, the high-temperature fresh water can be produced, and the energy utilization efficiency is higher.
Fig. 3 shows a system connection diagram of a third embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. The heat source device 3 is internally provided with a steam generation device 33 and a superheater 34, wherein the fresh water inlet 31 of the heat source device 3 is sequentially connected with the inlet 331 of the steam generation device 33, the outlet 332 of the steam generation device 33, the inlet 341 of the superheater 34, the outlet 342 of the superheater 34, and the first steam outlet 32 of the heat source device 3, and the superheater 34 is used for heating the steam generated in the steam generation device 33 to a preset state (i.e., a superheated state).
In this embodiment, the superheater 34 may be a thermal heating type or an electric heating type. Through the arrangement of the embodiment, the long-distance water heating simultaneous delivery system 100 of the present application can adjust the degree of superheat of the steam at the first steam outlet 32 of the heat source device 3, and ensure that the steam is not condensed due to heat leakage of the pipeline during long-distance delivery.
Fig. 4 shows a system connection diagram of a fourth embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. The heat source device 3 is internally provided with a steam generation device 33 and a first steam compression device 35, a fresh water inlet 31 of the heat source device 3 is sequentially connected with an inlet 331 of the steam generation device 33, an outlet 332 of the steam generation device 33, an inlet 351 of the first steam compression device 35, an outlet 352 of the first steam compression device 35 and a first steam outlet 32 of the heat source device 3, and the first steam compression device 35 is used for compressing the steam generated by the steam generation device 33 to a preset state.
The long-distance hydrothermal co-delivery system 100 of the present application can adjust the degree of superheat of the steam at the first steam outlet 32 of the heat source device 3, and ensure that the steam is not condensed due to heat leakage of the pipeline during long-distance delivery.
Fig. 5 shows a system connection diagram of a fifth embodiment of a long-haul hydrothermal co-feed system 100 according to an embodiment of the invention. The heat source device 3 is internally provided with a steam generating device 33 and an isolating heat exchange device 36, the isolating heat exchange device 36 comprises a high-temperature side and a low-temperature side, an inlet 361 of the high-temperature side is sequentially connected with an outlet 362 of the high-temperature side, an inlet 331 of the steam generating device 33 and an outlet 332 of the steam generating device 33, a fresh water inlet 31 of the heat source device 3 is sequentially connected with an inlet 363 of the low-temperature side, an outlet 364 of the low-temperature side and a steam outlet 32 of the heat source device 3, and the isolating heat exchange device 36 is used for isolating the internal circulation of the heat source device 3 from the delivered steam.
In this embodiment, the isolated heat exchange device 36 may be a heat exchanger or a heat pipe. The embodiment is more suitable for a nuclear power plant, and can effectively prevent radioactive internal circulation media from polluting outgoing steam.
Fig. 6 shows a system connection diagram of a sixth embodiment of a long-haul hydrothermal co-delivery system 100, according to an embodiment of the invention. The long-distance hydrothermal co-delivery system 100 according to the embodiment of the present invention may further include a plurality of second vapor compression devices 6, where the second vapor compression devices 6 are disposed on the long-distance steam pipeline 4. Wherein, when the number of the second vapor compression devices 6 is greater than 2, a plurality of the second vapor compression devices 6 are arranged at intervals of a preset distance. Through this setting, be provided with second vapor compression device 6 at regular intervals on the long pipeline 4 of steam, maintain the high pressure state among the steam transportation process through multistage compression, can reduce the steam transportation loss.
Fig. 7 shows a system connection diagram of a seventh embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. The end device 5 is provided with a hydrothermal separation device 53, the hydrothermal separation device 53 is used for releasing heat in the steam and supplying the heat to a heat user 52, and meanwhile, the steam releases heat and is condensed into water to be supplied to a water user 51.
The hydrothermal separation device 53 mentioned in the present application may be a heat exchanger, a large temperature difference absorption heat exchanger unit, or an absorption waste heat recovery unit.
Fig. 8 shows a system connection diagram of an eighth embodiment of a long-haul hydrothermal co-transport system 100 according to an embodiment of the invention. Wherein, the end device 5 is also provided with a steam turbine 54, the steam entering the end device 5 pushes the steam turbine 54 to do work and generate power to supply to the electricity user, the exhaust steam from the steam turbine 54 enters the hydrothermal separation device 53 to release heat and supply to the heat user 52, and the steam is condensed into water to supply to the water user 51.
In some embodiments, the fresh water preparation apparatus 1 may be selected from any one or more of a reverse osmosis membrane method fresh water preparation unit, a multistage flash evaporation fresh water preparation unit, a multi-effect distillation fresh water preparation unit, and a hydrothermal coproduction fresh water preparation unit; the water source of the fresh water preparation device 1 can be one or more of seawater, river and lake water, industrial wastewater and domestic sewage.
In some embodiments, the heat source device 3 may be a thermal power plant and/or a nuclear power plant.
Note that, in fig. 1 to 8, the solid line other than the device is represented by steam, and the dotted line is represented by water. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a long distance hydrothermal is with sending system which characterized in that, includes fresh water preparation facilities, fresh water supercharging device, heat source device, long-distance transport pipeline of steam and the end device that connects gradually, wherein:
the fresh water preparation device is used for preparing fresh water, a water source inlet of the fresh water preparation device is connected with an external water source, and a fresh water outlet of the fresh water preparation device is connected with a fresh water inlet of the heat source device through the fresh water pressurization device;
the heat source device is used for heating fresh water into steam with preset pressure, and a first steam outlet of the heat source device is connected with the tail end device through a long-distance steam pipeline;
the end device is for connection to a user end and is configured to extract heat from the steam for supply to a hot user and condense the steam into water for supply to the water user.
2. The long-reach hydrothermal co-delivery system according to claim 1, wherein the heat source device further comprises a second steam outlet connected to the drive inlet of the fresh water production device.
3. The long-distance hydrothermal simultaneous conveying system according to claim 1, wherein a steam generating device and a superheater are arranged in the heat source device, wherein a fresh water inlet of the heat source device is sequentially connected with an inlet of the steam generating device, an outlet of the steam generating device, an inlet of the superheater, an outlet of the superheater and a first steam outlet of the heat source device, and the superheater is used for heating steam generated in the steam generating device to a preset state.
4. The long-distance hydrothermal simultaneous delivery system according to claim 1, wherein a steam generation device and a first steam compression device are arranged in the heat source device, a fresh water inlet of the heat source device is sequentially connected with an inlet of the steam generation device, an outlet of the steam generation device, an inlet of the first steam compression device, an outlet of the first steam compression device, and a first steam outlet of the heat source device, and the first steam compression device is configured to compress steam generated by the steam generation device to a preset state.
5. The long-distance hydrothermal simultaneous delivery system according to claim 1, wherein a steam generation device and an isolation heat exchange device are arranged in the heat source device, the isolation heat exchange device comprises a high-temperature side and a low-temperature side, an inlet of the high-temperature side is sequentially connected with an outlet of the high-temperature side, an inlet of the steam generation device and an outlet of the steam generation device, a fresh water inlet of the heat source device is sequentially connected with an inlet of the low-temperature side, an outlet of the low-temperature side and a steam outlet of the heat source device, and the isolation heat exchange device is used for isolating internal circulation of the heat source device from delivered steam.
6. The long-distance hydrothermal co-delivery system according to any one of claims 1-5, further comprising a plurality of second vapor compression devices disposed on the long-distance vapor transmission pipeline, wherein the plurality of second vapor compression devices are spaced apart by a preset distance when the number of second vapor compression devices is greater than 2.
7. The long-distance hydrothermal simultaneous transport system according to any one of claims 1-5, wherein a hydrothermal separation device is arranged in the end device, the hydrothermal separation device is used for releasing heat in steam and supplying the heat to a hot user, and meanwhile, the steam releases heat and is condensed into water and supplied to a water user, wherein the hydrothermal separation device is selected from one of a heat exchanger, an absorption heat exchanger unit and an absorption waste heat recovery unit.
8. The long-distance hydrothermal simultaneous transfer system according to claim 7, wherein a steam turbine is further provided in the end device, and the steam turbine is connected to an inlet of the hydrothermal separation device.
9. The long-distance hydrothermal simultaneous transportation system according to any one of claims 1 to 5, wherein the fresh water preparation device is selected from any one or more of a reverse osmosis membrane method fresh water preparation unit, a multistage flash evaporation fresh water preparation unit, a multi-effect distillation fresh water preparation unit, and a hydrothermal simultaneous production fresh water preparation unit; the water source of the fresh water preparation device is one or more of seawater, river and lake water, industrial wastewater and domestic sewage.
10. The long-haul hydrothermal co-delivery system of any one of claims 1-5, wherein the heat source device is a thermal power plant and/or a nuclear power plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193066.1A CN114623430A (en) | 2022-02-28 | 2022-02-28 | Long-distance water-heat simultaneous conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210193066.1A CN114623430A (en) | 2022-02-28 | 2022-02-28 | Long-distance water-heat simultaneous conveying system |
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