CN110700906A - Single working medium combined cycle steam power device - Google Patents

Single working medium combined cycle steam power device Download PDF

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Publication number
CN110700906A
CN110700906A CN201911010704.6A CN201911010704A CN110700906A CN 110700906 A CN110700906 A CN 110700906A CN 201911010704 A CN201911010704 A CN 201911010704A CN 110700906 A CN110700906 A CN 110700906A
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China
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communicated
temperature heat
heat exchanger
speed increaser
expansion speed
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CN201911010704.6A
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李鸿瑞
李华玉
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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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01B23/08—Adaptations for driving, or combinations with, pumps
    • 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
    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/006—Auxiliaries or details not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention provides a single working medium combined cycle steam power device, and belongs to the technical field of energy and power. The condenser is provided with a condensate pipeline which is communicated with the mixing evaporator through a circulating pump, the expansion speed increaser is provided with a steam channel which is communicated with the mixing evaporator, the mixing evaporator is also provided with a steam channel which is respectively communicated with the dual-energy compressor and the expander, the dual-energy compressor is also provided with a steam channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expander is also provided with a steam channel which is communicated with the condenser; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the condenser is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator is also provided with a heat source medium channel communicated with the outside, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expansion speed increaser and the expander are connected with the outside and outputs power, so that the single-working-medium combined cycle steam power device is formed.

Description

Single working medium combined cycle steam power device
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
the heat energy is converted into mechanical energy which is needed by human life and production; the single-working-medium combined-cycle steam power device adopting the combined-cycle principle to work has great significance in the field of dealing with the heat-variable power of non-high-quality fuel. The expander, compressor and heat exchanger are essential basic and core components from the viewpoint of the components constituting the single-working-medium combined-cycle steam power plant; for the two core components of the compressor and the expander, the manufacturing difficulty is high, the material requirement is high, and the manufacturing cost is high, which is not beneficial to the application of the single working medium combined cycle steam power device. Therefore, a simple component should be used for replacing the single-working medium combined cycle steam power plant, or the structure of the core component should be simplified, so that the manufacturing difficulty and the manufacturing cost of the single-working medium combined cycle steam power plant can be obviously reduced, and the popularization and the application of the single-working medium combined cycle steam power plant are facilitated.
The invention provides a single working medium combined cycle steam power device which adopts an expansion speed increaser to replace a main expansion machine and adopts a dual-energy compressor to replace a main compressor on the premise of keeping or effectively improving the heat efficiency of the single working medium combined cycle steam power device, aims to reduce the manufacturing difficulty and the manufacturing cost of core components of the single working medium combined cycle steam power device, gives consideration to the coordination of the design and the manufacture of the whole device.
The invention content is as follows:
the invention mainly aims to provide a single-working-medium combined cycle steam power device which adopts an expansion speed increaser to replace a main expander and adopts a dual-energy compressor to replace a main compressor, and the specific contents of the invention are explained in sections as follows:
1. the single working medium combined cycle steam power device mainly comprises a compressor, an expander, a spray pipe, a diffuser pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser and a mixed evaporator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a steam channel which is communicated with the mixed evaporator through a spray pipe, the mixed evaporator is also provided with a steam channel which is respectively communicated with the compressor through a diffuser pipe and directly communicated with a second expander, the compressor is also provided with a steam channel which is communicated with the expander through a high-temperature heat exchanger, and the second expander is also provided with a steam channel which is communicated with the condenser; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the condenser is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the expander is connected with the compressor and transmits power, and the expander and the second expander are connected with the outside and outputs power to form a single-working-medium combined cycle steam power device; wherein, or the expander is connected with the circulating pump and transmits power.
2. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor and an expansion speed increaser; the condenser is provided with a condensate pipeline which is communicated with the mixing evaporator through a circulating pump, the expansion speed increaser is provided with a steam channel which is communicated with the mixing evaporator, the mixing evaporator is also provided with a steam channel which is respectively communicated with the dual-energy compressor and the expander, the dual-energy compressor is also provided with a steam channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expander is also provided with a steam channel which is communicated with the condenser; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the condenser is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expansion speed increaser and the expansion machine are connected with the outside and outputs power to form a single working medium combined cycle steam power device; wherein, or the expansion speed increaser is connected with the circulating pump and transmits power.
3. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser, a heat regenerator and a second circulating pump; the condenser is provided with a condensate pipeline which is communicated with a heat regenerator through a circulating pump, the expander is provided with a steam extraction channel which is communicated with the heat regenerator, the heat regenerator is also provided with a condensate pipeline which is communicated with a mixing evaporator through a second circulating pump, the expansion speed increaser is provided with a steam channel which is communicated with the mixing evaporator, the mixing evaporator is also provided with a steam channel which is respectively communicated with the dual-energy compressor and the expander, the dual-energy compressor is also provided with a steam channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expander is also provided with a steam channel which is; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the condenser is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expansion speed increaser and the expansion machine are connected with the outside and outputs power to form a single working medium combined cycle steam power device; wherein, or the expansion speed increaser is connected with the circulating pump and the second circulating pump and transmits power.
4. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser and a preheater; the condenser is provided with a condensate pipeline which is communicated with the mixing evaporator through a circulating pump and a preheater, the expansion speed increaser is provided with a steam channel which is communicated with the mixing evaporator, the mixing evaporator is also provided with a steam channel which is respectively communicated with the dual-energy compressor and the expander, the dual-energy compressor is also provided with a steam channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expander is also provided with a steam channel which is communicated with the condenser; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the condenser is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the preheater is also provided with a heat source medium channel communicated with the outside, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expansion speed increaser and the expansion machine are connected with the outside and output power to form a single-working-medium combined cycle steam power device; wherein, or the expansion speed increaser is connected with the circulating pump and transmits power.
5. A single working medium combined cycle steam power device is characterized in that a newly-added compressor and a newly-added high-temperature heat exchanger are added in any one of the single working medium combined cycle steam power devices in items 1-4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger to adjust that the dual-energy compressor is communicated with the newly-added compressor through the steam channel of the dual-energy compressor, the newly-added compressor is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, the newly-added high-temperature heat exchanger is also communicated with the outside through a heat source medium channel, and the expansion speed increaser is connected with the newly-added compressor and transmits power, so that the single working medium.
6. A single working medium combined cycle steam power device is characterized in that a newly-added high-temperature heat exchanger and a newly-added dual-energy compressor are added in any one of the single working medium combined cycle steam power devices of items 1 to 4, the dual-energy compressor is adjusted to be provided with a steam channel communicated with an expansion speed increaser through the high-temperature heat exchanger, the dual-energy compressor is provided with a steam channel communicated with the newly-added dual-energy compressor through the high-temperature heat exchanger, the newly-added dual-energy compressor is further provided with a steam channel communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, the newly-added high-temperature heat exchanger is further provided with a heat source medium channel communicated with the outside, and the expansion speed increaser is connected with the newly.
7. A single working medium combined cycle steam power device is characterized in that a newly-added high-temperature heat exchanger and a newly-added diffuser pipe are added in any one of the single working medium combined cycle steam power devices in items 1 to 4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly-added diffuser pipe through the high-temperature heat exchanger, the steam channel of the newly-added diffuser pipe is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, and the heat source medium channel of the newly-added high-temperature heat exchanger is communicated with the outside to form the single working medium combined cycle steam power device.
8. A single working medium combined cycle steam power device is characterized in that a new expansion machine and a new high temperature heat exchanger are added in any one of the single working medium combined cycle steam power devices in items 1-4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high temperature heat exchanger to adjust that the dual-energy compressor is communicated with the new expansion machine through the steam channel of the dual-energy compressor, the new expansion machine is communicated with the expansion speed increaser through the new high temperature heat exchanger, the new high temperature heat exchanger is communicated with the outside through a heat source medium channel, and the new expansion machine is connected with the outside and transmits power to form the single working medium combined cycle steam power device.
9. A single working medium combined cycle steam power device is characterized in that a new high-temperature heat exchanger and a new expansion speed increaser are added in any one of the single working medium combined cycle steam power devices in items 1 to 4, a steam channel of a dual-energy compressor is communicated with the expansion speed increaser through the high-temperature heat exchanger to adjust that the dual-energy compressor is communicated with the new expansion speed increaser through the high-temperature heat exchanger, the new expansion speed increaser is communicated with the expansion speed increaser through the steam channel, the new high-temperature heat exchanger is communicated with the outside through a heat source medium channel, and the new expansion speed increaser is connected with the outside and transmits power to form the single working medium combined cycle steam power device.
10. A single working medium combined cycle steam power device is characterized in that a newly-added high-temperature heat exchanger and a newly-added spray pipe are added in any one of the single working medium combined cycle steam power devices in items 1-4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger to adjust that the dual-energy compressor is communicated with the newly-added spray pipe through the high-temperature heat exchanger, the newly-added spray pipe is communicated with the expansion speed increaser through the steam channel, and the newly-added high-temperature heat exchanger is communicated with the outside through a heat source medium channel to form the single working medium combined cycle steam power device.
11. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator is added in any one of the single working medium combined cycle steam power devices in items 2 to 4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through a high-temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the high-temperature heat regenerator and the high-temperature heat exchanger, a steam channel of the expansion speed increaser is communicated with a mixed evaporator and adjusted to be communicated with the mixed evaporator through the steam channel of the expansion speed increaser, and the high-temperature heat regenerator is communicated with the mixed evaporator to form the single working medium combined cycle steam power device.
12. A single working medium combined cycle steam power device is in any one of the single working medium combined cycle steam power devices of items 2-4, a high-temperature heat regenerator, a newly-increased compressor and a newly-increased high-temperature heat exchanger are added, a steam channel of the double-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the newly-increased compressor through the high-temperature heat exchanger, a steam channel of the newly-increased compressor is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, a steam channel of the expansion speed increaser is communicated with a hybrid evaporator and is adjusted to be communicated with the hybrid evaporator through the steam channel of the expansion speed increaser, the newly-increased high-temperature heat exchanger is also communicated with the outside through a heat source medium channel, and the expansion speed increaser is connected with the newly-increased compressor and transmits power to form a single-working medium combined cycle.
13. A single working medium combined cycle steam power device is in any one of the single working medium combined cycle steam power devices of items 2-4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased dual-energy compressor are added, the dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the expansion speed increaser through the high-temperature heat exchanger and the high-temperature heat exchanger, the newly-increased dual-energy compressor is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, the expansion speed increaser is communicated with a mixed evaporator through the steam channel, the expansion speed increaser is adjusted to be communicated with the mixed evaporator through the steam channel, the newly-increased high-temperature heat exchanger is also communicated with the outside through a heat source medium channel, and the expansion speed increaser is connected with the newly-increased dual-energy compressor and transmits power to form a single-working-medium.
14. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased diffuser pipe are added in any one of the single working medium combined cycle steam power devices in items 2 to 4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the newly-increased diffuser pipe through the high-temperature heat exchanger, the steam channel of the newly-increased diffuser pipe is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, the steam channel of the expansion speed increaser is communicated with a mixed evaporator through the high-temperature heat regenerator, the steam channel of the expansion speed increaser is adjusted to be communicated with the mixed evaporator through the high-temperature heat regenerator, and a heat source medium channel of the newly-increased high-temperature heat exchanger is communicated.
15. A single working medium combined cycle steam power device is in any one of the single working medium combined cycle steam power devices of items 2-4, a high-temperature heat regenerator, a new expansion machine and a new increased high-temperature heat exchanger are added, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the high-temperature heat regenerator and the high-temperature heat exchanger, a steam channel of the new expansion machine is communicated with the expansion speed increaser through the new increased high-temperature heat exchanger, a steam channel of the expansion speed increaser is communicated with a hybrid evaporator and adjusted to be communicated with the hybrid evaporator through the steam channel of the expansion speed increaser, the new increased high-temperature heat exchanger is also communicated with the outside through a heat source medium channel, and the new expansion machine is connected with the outside and transmits power to form a single-working-medium combined cycle steam power device.
16. A single working medium combined cycle steam power device is in any one of the single working medium combined cycle steam power devices of items 2-4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased expansion speed increaser are added, a steam channel of a dual-energy compressor is communicated with the expansion speed increaser through the high-temperature heat exchanger, the dual-energy compressor is adjusted to be communicated with the expansion speed increaser through the high-temperature heat regenerator and the high-temperature heat exchanger, the newly-increased expansion speed increaser is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, the expansion speed increaser is adjusted to be communicated with a mixed evaporator through the steam channel of the expansion speed increaser, the steam channel of the newly-increased expansion speed increaser is communicated with the mixed evaporator through the high-temperature heat exchanger, the newly-increased high-temperature heat exchanger is also communicated with the outside through a heat source medium channel.
17. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased spray pipe are added in any one of the single working medium combined cycle steam power devices in items 2 to 4, a steam channel of a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the newly-increased spray pipe through the high-temperature heat regenerator and the high-temperature heat exchanger, a steam channel of the newly-increased spray pipe is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, a steam channel of the expansion speed increaser is communicated with a mixed evaporator through the high-temperature heat regenerator, a steam channel of the expansion speed increaser is adjusted to be communicated with the mixed evaporator through the high-temperature heat regenerator, and a heat source medium channel of the.
Description of the drawings:
FIG. 1 is a schematic 1 st principal thermodynamic system diagram of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a single-working-medium combined-cycle steam power plant provided in accordance with the present invention.
FIG. 3 is a schematic diagram of the 3 rd principle thermodynamic system of a single-working-medium combined-cycle steam power plant according to the present invention.
FIG. 4 is a diagram of a 4 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 5 is a schematic diagram of a 5 th principal thermodynamic system of a single-working-medium combined cycle steam power plant according to the present invention.
FIG. 6 is a schematic diagram of a 6 th principal thermodynamic system of a single-working-medium combined-cycle steam power plant according to the present invention.
FIG. 7 is a 7 th principal thermodynamic system diagram of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 8 is a diagram of an 8 th principal thermodynamic system for a single-working-medium combined cycle steam power plant in accordance with the present invention.
FIG. 9 is a diagram of a 9 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 10 is a diagram of a 10 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 11 is a schematic diagram of the 11 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 12 is a schematic diagram of a 12 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 13 is a 13 th principal thermodynamic system diagram of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 14 is a diagram of a 14 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
FIG. 15 is a diagram of a 15 th principal thermodynamic system of a single-working-medium combined cycle steam power plant provided in accordance with the present invention.
In the figure, 1-compressor, 2-expander, 3-spray pipe, 4-diffuser pipe, 5-second expander, 6-circulating pump, 7-high temperature heat exchanger, 8-condenser, 9-mixed evaporator, 10-dual energy compressor, 11-expansion speed increaser, 12-heat regenerator, 13-second circulating pump, 14-preheater and 15-high temperature heat regenerator; a-a newly-added compressor, B-a newly-added expansion machine, C-a newly-added high-temperature heat exchanger, D-a newly-added dual-energy compressor, E-a newly-added diffuser pipe, F-a newly-added expansion speed-increasing machine and G-a newly-added spray pipe.
In order to clearly express and appreciate the spirit and scope of the present invention, the following specific description is given to the dual energy compressor and the expansion speed increasing machine:
(1) the double-energy compressor, a device for increasing the pressure of a medium by utilizing external mechanical energy and the self kinetic energy of fluid, is a combination of the compressor and a diffuser pipe.
(2) An expansion speed increaser, a device which can realize double functions of pressure reduction and work doing and pressure reduction and speed increase under a certain pressure reduction, is a combination of the expansion machine and a spray pipe.
(3) In the case of the second expander 5 in fig. 1 or the expander 2 in fig. 2, it is necessary to convert not only the thermal energy of the steam into mechanical energy (pressure reduction work) but also the kinetic energy of the steam into mechanical energy (speed reduction work), which is different from the conventional expander.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The single-working-medium combined-cycle steam power plant shown in fig. 1 is realized in such a way that:
(1) structurally, the system mainly comprises a compressor, an expander, a spray pipe, a diffuser pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser and a mixed evaporator; the condenser 8 has a condensate pipeline which is communicated with a mixing evaporator 9 through a circulating pump 6, the expander 2 has a steam channel which is communicated with the mixing evaporator 9 through a spray pipe 3, the mixing evaporator 9 and the steam channel are respectively communicated with the compressor 1 through a diffuser pipe 4 and directly communicated with the second expander 5, the compressor 1 and the steam channel are communicated with the expander 2 through a high-temperature heat exchanger 7, and the second expander 5 and the steam channel are communicated with the condenser 8; the high-temperature heat exchanger 7 is also communicated with the outside through a heat source medium channel, the condenser 8 is also communicated with the outside through a cooling medium channel, the hybrid evaporator 9 is also communicated with the outside through a heat source medium channel, the expander 2 is connected with the compressor 1 and transmits power, and the expander 2 and the second expander 5 are connected with the outside and outputs power.
(2) In the process, condensate of a condenser 8 is boosted by a circulating pump 6 and enters a mixing evaporator 9, the condensate is mixed with high-temperature steam from a spray pipe 3 and simultaneously absorbs heat load provided by an external heat source medium and then is vaporized, the steam generated by the mixing evaporator 9 is divided into two paths, namely the first path of the steam is boosted, heated and decelerated by a diffuser pipe 4, boosted and heated by a compressor 1, absorbed by a high-temperature heat exchanger 7, reduced and made work by an expander 2, and depressurized, cooled and accelerated by the spray pipe 3, and then enters the mixing evaporator 9 for heat release and temperature reduction; the second path flows through the second expander 5 to reduce the speed, reduce the pressure and do work, and then enters the condenser 8 to release heat to a cooling medium and condense; the heat source medium provides driving heat load through the high-temperature heat exchanger 7 and the mixed evaporator 9, the cooling medium takes away low-temperature heat load through the condenser 8, the expander 2 provides power for the compressor 1, and the expander 2 and the second expander 5 provide power to the outside (such as driving a working machine or a generator) together to form a single-working-medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 2 is realized in such a way that:
(1) structurally, the system mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor and an expansion speed increaser; the condenser 8 has a condensate pipeline which is communicated with the mixing evaporator 9 through the circulating pump 6, the expansion speed increaser 11 has a steam channel which is communicated with the mixing evaporator 9, the mixing evaporator 9 also has a steam channel which is respectively communicated with the dual-energy compressor 10 and the expander 2, the dual-energy compressor 10 also has a steam channel which is communicated with the expansion speed increaser 11 through the high-temperature heat exchanger 7, and the expander 2 also has a steam channel which is communicated with the condenser 8; the high-temperature heat exchanger 7 is also communicated with the outside through a heat source medium channel, the condenser 8 is also communicated with the outside through a cooling medium channel, the hybrid evaporator 9 is also communicated with the outside through a heat source medium channel, the expansion speed increaser 11 is connected with the dual-energy compressor 10 and transmits power, and the expansion speed increaser 11 and the expander 2 are connected with the outside and outputs power.
(2) In the process, the condensate of the condenser 8 is boosted by the circulating pump 6 and enters the mixing evaporator 9, the condensate is mixed with the high-temperature steam from the expansion speed increaser 11 and simultaneously absorbs the heat load provided by the external heat source medium and then is vaporized, the steam generated by the mixing evaporator 9 enters the dual-energy compressor 10 to be boosted, heated and decelerated, and enters the expansion machine 2 to be decelerated, depressurized and work done; the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, flows through the expansion speed increaser 11 and performs pressure reduction and work application and pressure reduction and speed increase, and then enters the mixing evaporator 9 to release heat and reduce the temperature; the steam discharged by the expander 2 enters the condenser 8, releases heat to the cooling medium and is condensed; the heat source medium provides driving heat load through the high-temperature heat exchanger 7 and the hybrid evaporator 9, the cooling medium takes away low-temperature heat load through the condenser 8, the expansion speed increaser 11 provides power for the dual-energy compressor 10, and the expansion machine 2 and the expansion speed increaser 11 provide power outwards together to form a single working medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 3 is realized in such a way that:
(1) structurally, the system mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser, a heat regenerator and a second circulating pump; the condenser 8 has a condensate pipeline which is communicated with a heat regenerator 12 through a circulating pump 6, the expander 2 has a steam extraction channel which is communicated with the heat regenerator 12, the heat regenerator 12 and the condensate pipeline are communicated with a mixed evaporator 9 through a second circulating pump 13, the expansion speed increaser 11 has a steam channel which is communicated with the mixed evaporator 9, the mixed evaporator 9 also has a steam channel which is respectively communicated with a dual-energy compressor 10 and the expander 2, the dual-energy compressor 10 also has a steam channel which is communicated with the expansion speed increaser 11 through a high-temperature heat exchanger 7, and the expander 2 also has a steam channel which is communicated with the condenser 8; the high-temperature heat exchanger 7 is also communicated with the outside through a heat source medium channel, the condenser 8 is also communicated with the outside through a cooling medium channel, the hybrid evaporator 9 is also communicated with the outside through a heat source medium channel, the expansion speed increaser 11 is connected with the dual-energy compressor 10 and transmits power, and the expansion speed increaser 11 and the expander 2 are connected with the outside and outputs power.
(2) In the process, the condensate of the condenser 8 is boosted by the circulating pump 6 and enters the heat regenerator 12, the extracted steam of the expander 2 enters the heat regenerator 12 to release heat and condense, the condensate of the heat regenerator 12 is boosted by the second circulating pump 13 and enters the hybrid evaporator 9, the condensate is mixed with the high-temperature steam from the expansion speed increaser 11 and simultaneously absorbs the heat load provided by the external heat source medium and then is vaporized, the steam generated by the hybrid evaporator 9 is divided into two paths, wherein the first path is provided for the dual-energy compressor 10, and the second path is provided for the expander 2; the first path of steam flows through the dual-energy compressor 10 to increase the pressure, increase the temperature and reduce the speed, flows through the high-temperature heat exchanger 7 to absorb heat, flows through the expansion speed increaser 11 to reduce the pressure, do work, reduce the pressure and increase the speed, and then enters the mixing evaporator 9 to release heat and reduce the temperature; the second path of steam enters the expansion machine 2 to complete partial speed reduction, pressure reduction and work, and then is divided into two paths, namely the first path enters the heat regenerator 12, and the second path continues to reduce the pressure and work, then enters the condenser 8 to release heat and condense; the heat source medium provides driving heat load through the high-temperature heat exchanger 7 and the hybrid evaporator 9, the cooling medium takes away low-temperature heat load through the condenser 8, the expansion speed increaser 11 provides power for the dual-energy compressor 10, and the expansion machine 2 and the expansion speed increaser 11 provide power outwards together to form a single working medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 4 is realized in such a way that:
(1) structurally, the system mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser and a preheater; the condenser 8 is provided with a condensate pipeline which is communicated with the mixing evaporator 9 through a circulating pump 6 and a preheater 14, the expansion speed increaser 11 is provided with a steam channel which is communicated with the mixing evaporator 9, the mixing evaporator 9 is also provided with a steam channel which is respectively communicated with the dual-energy compressor 10 and the expander 2, the dual-energy compressor 10 is also provided with a steam channel which is communicated with the expansion speed increaser 11 through a high-temperature heat exchanger 7, and the expander 2 is also provided with a steam channel which is communicated with the condenser 8; the high-temperature heat exchanger 7 is also communicated with the outside through a heat source medium channel, the condenser 8 is also communicated with the outside through a cooling medium channel, the mixing evaporator 9 is also communicated with the outside through a heat source medium channel, the preheater 14 is also communicated with the outside through a heat source medium channel, the expansion speed increaser 11 is connected with the dual-energy compressor 10 and transmits power, and the expansion speed increaser 11 and the expander 2 are connected with the outside and outputs power.
(2) In the flow, the condensate of the condenser 8 is boosted by the circulating pump 6, absorbed by the preheater 14 and heated, and then enters the mixing evaporator 9; high-temperature steam discharged by the expansion speed increaser 11 enters the mixing evaporator 9 to be mixed with the condensate and release heat, an external heat source medium provides heat load for the condensate, and the condensate absorbs heat and is vaporized; the steam generated by the mixed evaporator 9 enters a dual-energy compressor 10 to increase pressure, raise temperature and reduce speed respectively, and enters an expander 2 to reduce speed and reduce pressure and do work; the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, flows through the expansion speed increaser 11 and performs pressure reduction and work application and pressure reduction and speed increase, and then enters the mixing evaporator 9 to release heat and reduce the temperature; the steam discharged by the expander 2 enters the condenser 8, releases heat to the cooling medium and is condensed; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the hybrid evaporator 9 and the preheater 14, the cooling medium takes away low-temperature heat load through the condenser 8, the expansion speed increaser 11 provides power for the dual-energy compressor 10, and the expansion machine 2 and the expansion speed increaser 11 provide power outwards together to form a single working medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 5 is realized in such a way that:
(1) structurally, in the single-working-medium combined-cycle steam power plant shown in fig. 4, a newly added compressor and a newly added high-temperature heat exchanger are added, a steam channel of a dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a newly added compressor A through the steam channel of the dual-energy compressor 7, the newly added compressor A is communicated with the expansion speed increaser 11 through a newly added high-temperature heat exchanger C, the newly added high-temperature heat exchanger C is communicated with the outside through a heat source medium channel, and the expansion speed increaser 11 is connected with the newly added compressor A and transmits power.
(2) Compared with the single-working medium combined cycle steam power plant shown in the figure 4, the difference of the flow is that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added compressor A to increase the pressure and the temperature; the steam discharged by the newly-increased compressor A flows through the newly-increased high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed-increasing machine 11 to reduce pressure, do work and increase pressure and speed; the expansion speed increaser 11 provides power for the newly-added compressor A, and the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 6 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power device shown in fig. 4, a newly-added high-temperature heat exchanger and a newly-added dual-energy compressor are added, a steam channel of the dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with the newly-added dual-energy compressor D through the steam channel of the dual-energy compressor 7, the newly-added dual-energy compressor D is further communicated with the expansion speed increaser 11 through a steam channel of the newly-added high-temperature heat exchanger C, the newly-added high-temperature heat exchanger C is further communicated with the outside through a heat source medium channel, and the expansion speed increaser 11 is connected.
(2) In the flow, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added dual-energy compressor D to reduce the speed, increase the pressure and raise the temperature; the steam discharged by the newly-increased double-energy compressor D flows through the newly-increased high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed-increasing machine 11 to reduce pressure, do work and increase pressure and speed; the expansion speed increaser 11 provides power for the newly-added dual-energy compressor D, and the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 7 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power plant shown in fig. 4, a new high-temperature heat exchanger and a new diffuser pipe are added, the dual-energy compressor 10 is communicated with the expansion speed increaser 11 through the high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with the new diffuser pipe E through the high-temperature heat exchanger 7, the new diffuser pipe E is communicated with the expansion speed increaser 11 through the steam channel C, and the new high-temperature heat exchanger C is also communicated with the outside through the heat source medium channel.
(2) In the process, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added diffuser pipe E to increase pressure, raise temperature and reduce speed; the steam discharged by the newly added diffuser pipe E flows through the newly added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 8 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power device shown in fig. 4, a new expansion machine and a new high-temperature heat exchanger are added, a steam channel of a dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a new expansion machine B through the steam channel of the high-temperature heat exchanger 7, the new expansion machine B is further communicated with the expansion speed increaser 11 through a steam channel of a new high-temperature heat exchanger C, the new high-temperature heat exchanger C is also communicated with the outside through a heat source medium channel, and the new expansion machine B is connected with the outside and transmits power.
(2) Compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference in the flow is that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the new expansion machine B to reduce the pressure and do work; the steam discharged by the new expansion machine B flows through the new high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the work output by the new expansion machine B is provided for the outside, and the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the new high-temperature heat exchanger C, the mixed evaporator 9 and the preheater 14 respectively, so that the single-working-medium combined-cycle steam power device is formed.
The single-working-medium combined-cycle steam power plant shown in fig. 9 is realized in such a way that:
(1) structurally, in the single-working-medium combined-cycle steam power plant shown in fig. 4, a new high-temperature heat exchanger and a new expansion speed increaser are added, a steam channel of a dual-energy compressor 10 is communicated with the expansion speed increaser 11 through the high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with the new expansion speed increaser F through the high-temperature heat exchanger 7, the steam channel of the new expansion speed increaser F is communicated with the expansion speed increaser 11 through the new high-temperature heat exchanger C, the new high-temperature heat exchanger C is also communicated with the outside through a heat source medium channel, and the new expansion speed increaser F is connected with the outside and transmits power.
(2) Compared with the single-working medium combined cycle steam power device shown in fig. 4, the difference in the flow is that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added expansion speed increaser F to reduce the pressure and do work and increase the pressure and speed; the steam discharged by the newly-added expansion speed increaser F flows through the newly-added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the work output by the newly added expansion speed increaser F is provided externally, and the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly added high-temperature heat exchanger C, the mixing evaporator 9 and the preheater 14 respectively to form a single-working-medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 10 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power plant shown in fig. 4, a newly-added high-temperature heat exchanger and a newly-added spray pipe are added, a steam channel of a dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a newly-added spray pipe G through the steam channel of the high-temperature heat exchanger 7, the newly-added spray pipe G is communicated with the expansion speed increaser 11 through a steam channel of the newly-added high-temperature heat exchanger C, and the newly-added high-temperature heat exchanger C is also communicated with the outside through a.
(2) In the process, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that steam discharged by the dual-energy compressor 10 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added spray pipe G to reduce the pressure, reduce the temperature and increase the speed; the steam discharged by the newly added spray pipe G flows through the newly added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 11 is realized by:
(1) structurally, in the single-working medium combined cycle steam power plant shown in fig. 4, a high-temperature heat regenerator is added, a steam channel of the dual-energy compressor 10 is communicated with the expansion speed increaser 11 through the high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with the expansion speed increaser 11 through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7, the expansion speed increaser 11 is adjusted to be communicated with the hybrid evaporator 9 through the steam channel of the expansion speed increaser 11, and the steam channel of the expansion speed increaser 11 is communicated with the hybrid evaporator 9 through the high-temperature heat regenerator 15.
(2) In the process, compared with the single-working medium combined cycle steam power device shown in fig. 4, the difference lies in that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7 and gradually absorbs heat and raises temperature, and then enters the expansion speed increaser 11 to reduce pressure and do work and reduce pressure and increase speed; the steam discharged by the expansion speed increaser 11 flows through the high-temperature heat regenerator 15 to release heat and reduce temperature, and then enters the hybrid evaporator 9 to form the single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 12 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power device shown in fig. 4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased dual-energy compressor are added, a steam channel of the dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a newly-increased dual-energy compressor D through a steam channel of the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7, the newly-increased dual-energy compressor D is communicated with the expansion speed increaser 11 through a steam channel of the newly-increased high-temperature heat exchanger C, the expansion speed increaser 11 is adjusted to be communicated with a mixing evaporator 9 through a steam channel of the expansion speed increaser 11, the steam channel of the expansion speed increaser 11 is communicated with a mixing evaporator 9 through a high-temperature heat regenerator 15, the newly-increased high-.
(2) In the process, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that steam discharged by the dual-energy compressor 10 flows through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7 and gradually absorbs heat and heats up, and then enters the newly-increased dual-energy compressor D to increase pressure, heat and reduce speed; the steam discharged by the newly-increased dual-energy compressor D flows through the newly-increased high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed-increasing machine 11 to reduce pressure, do work and increase pressure and speed; steam discharged by the expansion speed increaser 11 flows through the high-temperature heat regenerator 15, releases heat and cools, and then enters the mixing evaporator 9; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the mixing evaporator 9 and the preheater 14 respectively, and the expansion speed increaser 11 provides power for the newly-added dual-energy compressor D to form the single-working-medium combined cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 13 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power plant shown in fig. 4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased diffuser are added, a steam channel of a dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7 and is adjusted to be communicated with a newly-increased diffuser E through a steam channel of the dual-energy compressor 10 through a high-temperature heat regenerator 15 and the high-temperature heat exchanger 7, the newly-increased diffuser E is further communicated with the expansion speed increaser 11 through a steam channel of a newly-increased high-temperature heat exchanger C, the expansion speed increaser 11 is communicated with a hybrid evaporator 9 through a steam channel of the expansion speed increaser 11, the newly-increased high-temperature heat exchanger C is further communicated with the outside through a heat source medium channel.
(2) In the process, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that steam discharged by the dual-energy compressor 10 flows through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7 and gradually absorbs heat and heats up, and then enters the newly-added diffuser pipe E to increase pressure, raise temperature and reduce speed; the steam discharged by the newly added diffuser pipe E flows through the newly added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; steam discharged by the expansion speed increaser 11 flows through the high-temperature heat regenerator 15, releases heat and cools, and then enters the mixing evaporator 9; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The single-working-medium combined-cycle steam power plant shown in fig. 14 is realized in such a way that:
(1) structurally, in the single-working medium combined cycle steam power device shown in fig. 4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-added expansion speed increaser are added, a steam channel of a dual-energy compressor 10 is communicated with the expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a newly-added expansion speed increaser F through a high-temperature heat regenerator 15 and a high-temperature heat exchanger 7, the newly-added expansion speed increaser F is communicated with the expansion speed increaser 11 through a steam channel of a newly-increased high-temperature heat exchanger C, the expansion speed increaser 11 is adjusted to be communicated with a mixed evaporator 9 through a steam channel of the expansion speed increaser 11 through a steam channel of a newly-increased high-temperature heat exchanger C, a heat source medium channel of the newly-added high-temperature heat exchanger C is communicated with.
(2) In the process, compared with the single-working medium combined cycle steam power plant shown in fig. 4, the difference lies in that the steam discharged by the dual-energy compressor 10 flows through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7 and gradually absorbs heat and increases temperature, and then enters the newly-added expansion speed increaser F to reduce pressure and do work and reduce pressure and increase speed; the steam discharged by the newly-added expansion speed increaser F flows through the newly-added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce pressure, do work and increase pressure and speed; steam discharged by the expansion speed increaser 11 flows through the high-temperature heat regenerator 15, releases heat and cools, and then enters the mixing evaporator 9; the heat source medium provides driving heat load through the high temperature heat exchanger 7, the newly-added high temperature heat exchanger C, the mixing evaporator 9 and the preheater 14 respectively, and the work of the newly-added expansion speed increaser F is provided externally, so that the single working medium combined cycle steam power device is formed.
The single-working-medium combined-cycle steam power plant shown in fig. 15 is realized by:
(1) structurally, in the single-working medium combined cycle steam power plant shown in fig. 4, a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased spray pipe are added, a steam channel of a dual-energy compressor 10 is communicated with an expansion speed increaser 11 through a high-temperature heat exchanger 7, the dual-energy compressor 10 is adjusted to be communicated with a newly-increased spray pipe G through a steam channel of a high-temperature heat regenerator 15 and the high-temperature heat exchanger 7, the newly-increased spray pipe G is communicated with the expansion speed increaser 11 through a steam channel of a newly-increased high-temperature heat exchanger C, the expansion speed increaser 11 is communicated with a hybrid evaporator 9 through a steam channel of a mixed evaporator 9, the newly-increased high-temperature heat exchanger C is communicated with the outside through a heat source medium channel.
(2) In the process, compared with the single-working medium combined cycle steam power device shown in fig. 4, the difference lies in that steam discharged by the dual-energy compressor 10 flows through the high-temperature heat regenerator 15 and the high-temperature heat exchanger 7 and gradually absorbs heat and raises temperature, and then enters the newly-added spray pipe G to reduce pressure, lower temperature and increase speed; the steam discharged by the newly added spray pipe G flows through the newly added high-temperature heat exchanger C and absorbs heat, and then enters the expansion speed increaser 11 to reduce the pressure and do work and reduce the pressure and increase the speed; steam discharged by the expansion speed increaser 11 flows through the high-temperature heat regenerator 15, releases heat and cools, and then enters the mixing evaporator 9; the heat source medium provides driving heat load through the high-temperature heat exchanger 7, the newly-added high-temperature heat exchanger C, the hybrid evaporator 9 and the preheater 14 respectively to form a single-working-medium combined-cycle steam power device.
The effect that the technology of the invention can realize-the single working medium combined cycle steam power plant provided by the invention has the following effects and advantages:
(1) the dual-energy compressor and the expansion speed increaser are adopted to respectively replace the main compressor and the main expander, so that the manufacturing difficulty and the manufacturing cost of the single-working-medium combined-cycle steam power device are greatly reduced.
(2) The dual-energy compressor and the expansion speed increaser are mutually matched, and the design and the manufacture of the whole device are favorably coordinated.
(3) A spray pipe or an expansion speed increaser is adopted to replace a non-main expansion machine, so that the manufacturing difficulty and the manufacturing cost of the single-working-medium combined-cycle steam power device are effectively reduced.
(4) The diffuser pipe or the dual-energy compressor is adopted to replace a non-main compressor, so that the manufacturing difficulty and the manufacturing cost of the single working medium combined cycle steam power device are effectively reduced.
(5) The simple components replace complex components, and the heat efficiency of the single working medium combined cycle steam power device is kept or improved.
(6) A plurality of specific technical schemes are provided, and the device can be used for coping with a plurality of different actual conditions and has a wider application range.
(7) The technology of the single-working-medium combined-cycle steam power device is expanded, the types of the single-working-medium combined-cycle steam power device are enriched, the conversion of heat energy into mechanical energy is favorably realized, and the application range of the single-working-medium combined-cycle steam power device is expanded.

Claims (17)

1. The single working medium combined cycle steam power device mainly comprises a compressor, an expander, a spray pipe, a diffuser pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser and a mixed evaporator; the condenser (8) is provided with a condensate pipeline which is communicated with the mixing evaporator (9) through a circulating pump (6), the expander (2) is provided with a steam channel which is communicated with the mixing evaporator (9) through a spray pipe (3), the mixing evaporator (9) is also provided with a steam channel which is respectively communicated with the compressor (1) through a diffuser pipe (4) and directly communicated with the second expander (5), the compressor (1) is also provided with a steam channel which is communicated with the expander (2) through a high-temperature heat exchanger (7), and the second expander (5) is also provided with a steam channel which is communicated with the condenser (8); the high-temperature heat exchanger (7) is also provided with a heat source medium channel communicated with the outside, the condenser (8) is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator (9) or the heat source medium channel is also communicated with the outside, the expander (2) is connected with the compressor (1) and transmits power, and the expander (2) and the second expander (5) are connected with the outside and output power to form a single-working-medium combined-cycle steam power device; wherein, or the expander (2) is connected with the circulating pump (6) and transmits power.
2. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor and an expansion speed increaser; the condenser (8) is provided with a condensate pipeline which is communicated with the mixing evaporator (9) through a circulating pump (6), the expansion speed increaser (11) is provided with a steam channel which is communicated with the mixing evaporator (9), the mixing evaporator (9) is also provided with a steam channel which is respectively communicated with the dual-energy compressor (10) and the expander (2), the dual-energy compressor (10) is also provided with a steam channel which is communicated with the expansion speed increaser (11) through a high-temperature heat exchanger (7), and the expander (2) is also provided with a steam channel which is communicated with the condenser (8); the high-temperature heat exchanger (7) is also provided with a heat source medium channel communicated with the outside, the condenser (8) is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator (9) or the heat source medium channel is also communicated with the outside, the expansion speed increaser (11) is connected with the dual-energy compressor (10) and transmits power, and the expansion speed increaser (11) and the expansion machine (2) are connected with the outside and output power to form a single-working-medium combined cycle steam power device; wherein, or the expansion speed increaser (11) is connected with the circulating pump (6) and transmits power.
3. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser, a heat regenerator and a second circulating pump; the condenser (8) is provided with a condensate pipeline which is communicated with a heat regenerator (12) through a circulating pump (6), the expander (2) is provided with a steam extraction channel which is communicated with the heat regenerator (12), the heat regenerator (12) is also provided with a condensate pipeline which is communicated with a mixed evaporator (9) through a second circulating pump (13), the expansion speed increaser (11) is provided with a steam channel which is communicated with the mixed evaporator (9), the mixed evaporator (9) is also provided with a steam channel which is respectively communicated with the dual-energy compressor (10) and the expander (2), the dual-energy compressor (10) is also provided with a steam channel which is communicated with the expansion speed increaser (11) through a high-temperature heat exchanger (7), and the expander (2) is also provided with a steam channel which is communicated with the condenser (8); the high-temperature heat exchanger (7) is also provided with a heat source medium channel communicated with the outside, the condenser (8) is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator (9) or the heat source medium channel is also communicated with the outside, the expansion speed increaser (11) is connected with the dual-energy compressor (10) and transmits power, and the expansion speed increaser (11) and the expansion machine (2) are connected with the outside and output power to form a single-working-medium combined cycle steam power device; wherein, or the expansion speed increaser (11) is connected with the circulating pump (6) and the second circulating pump (13) and transmits power.
4. The single working medium combined cycle steam power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, a mixed evaporator, a dual-energy compressor, an expansion speed increaser and a preheater; the condenser (8) is provided with a condensate pipeline which is communicated with the mixing evaporator (9) through a circulating pump (6) and a preheater (14), the expansion speed increaser (11) is provided with a steam channel which is communicated with the mixing evaporator (9), the mixing evaporator (9) is also provided with a steam channel which is respectively communicated with the dual-energy compressor (10) and the expander (2), the dual-energy compressor (10) is also provided with a steam channel which is communicated with the expansion speed increaser (11) through a high-temperature heat exchanger (7), and the expander (2) is also provided with a steam channel which is communicated with the condenser (8); the high-temperature heat exchanger (7) is also provided with a heat source medium channel communicated with the outside, the condenser (8) is also provided with a cooling medium channel communicated with the outside, the hybrid evaporator (9) or the heat source medium channel is also communicated with the outside, the preheater (14) is also provided with a heat source medium channel communicated with the outside, the expansion speed increaser (11) is connected with the dual-energy compressor (10) and transmits power, and the expansion speed increaser (11) and the expander (2) are connected with the outside and output power to form a single-working-medium combined cycle steam power device; wherein, or the expansion speed increaser (11) is connected with the circulating pump (6) and transmits power.
5. A single working medium combined cycle steam power device is characterized in that a newly-added compressor and a newly-added high-temperature heat exchanger are added in any single working medium combined cycle steam power device of claims 1-4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through the high-temperature heat exchanger (7) and adjusted into a mode that the steam channel of the dual-energy compressor (10) is communicated with a newly-added compressor (A) through the high-temperature heat exchanger (7), the steam channel of the newly-added compressor (A) is communicated with the expansion speed increaser (11) through the newly-added high-temperature heat exchanger (C), the newly-added high-temperature heat exchanger (C) is also communicated with the outside, and the expansion speed increaser (11) is connected with the newly-added compressor (A) and transmits power to form the single working medium combined cycle steam.
6. A single working medium combined cycle steam power device is characterized in that a newly-added high-temperature heat exchanger and a newly-added dual-energy compressor are added in any single working medium combined cycle steam power device of claims 1-4, a steam channel of the dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) to adjust that the dual-energy compressor (10) is communicated with the newly-added dual-energy compressor (D) through the high-temperature heat exchanger (7), the newly-added dual-energy compressor (D) is further communicated with the expansion speed increaser (11) through a steam channel of the newly-added high-temperature heat exchanger (C), the newly-added high-temperature heat exchanger (C) is further communicated with the outside, and the expansion speed increaser (11) is connected with the newly-added dual-energy compressor (D) and transmits power to form the single working medium combined cycle steam power device.
7. A single working medium combined cycle steam power device is characterized in that a new high-temperature heat exchanger and a new pressure-increasing pipe are added in any single working medium combined cycle steam power device of claims 1 to 4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a new pressure-increasing pipe (E) through the high-temperature heat exchanger (7), the steam channel of the new pressure-increasing pipe (E) is communicated with the expansion speed increaser (11) through the new high-temperature heat exchanger (C), and the heat source medium channel of the new pressure-increasing heat exchanger (C) is communicated with the outside to form the single working medium combined cycle steam power device.
8. A single working medium combined cycle steam power device is characterized in that a new expansion machine and a new high temperature heat exchanger are added in any single working medium combined cycle steam power device of claims 1-4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a new expansion machine (B) through the high temperature heat exchanger (7) and is further communicated with the expansion speed increaser (11) through a steam channel of the new expansion machine (B), the new high temperature heat exchanger (C) is further communicated with the outside through a heat source medium channel, and the new expansion machine (B) is connected with the outside and transmits power to form the single working medium combined cycle steam power device.
9. A single working medium combined cycle steam power device is characterized in that a new high-temperature heat exchanger and a new expansion speed increaser are added in any single working medium combined cycle steam power device of claims 1 to 4, a steam channel of a dual-energy compressor (10) is communicated with the expansion speed increaser (11) through the high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with the new expansion speed increaser (F) through the high-temperature heat exchanger (7), the steam channel of the new expansion speed increaser (F) is communicated with the expansion speed increaser (11) through the new high-temperature heat exchanger (C), the new high-temperature heat exchanger (C) is also communicated with the outside through a heat source medium channel, and the new expansion speed increaser (F) is connected with the outside and transmits power to form the single working medium combined cycle steam power device.
10. A single working medium combined cycle steam power device is characterized in that a newly-added high-temperature heat exchanger and a newly-added spray pipe are added in any single working medium combined cycle steam power device of claims 1 to 4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) to adjust that the dual-energy compressor (10) is communicated with a newly-added spray pipe (G) through the high-temperature heat exchanger (7) and a steam channel of the newly-added spray pipe (G) is communicated with the expansion speed increaser (11) through the new high-temperature heat exchanger (C), and the newly-added high-temperature heat exchanger (C) is also communicated with the outside through a heat source medium channel to form the single working medium combined cycle steam power device.
11. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator is added in any single working medium combined cycle steam power device of claims 2-4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) and adjusted to be communicated with the expansion speed increaser (11) through a high-temperature heat regenerator (15) and the high-temperature heat exchanger (7), a steam channel of the expansion speed increaser (11) is communicated with a mixed evaporator (9) and adjusted to be communicated with the mixed evaporator (9) through a high-temperature heat regenerator (15), and the single working medium combined cycle steam power device is formed.
12. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a newly-added compressor and a newly-added high-temperature heat exchanger are added in any single working medium combined cycle steam power device of claims 2-4, a steam channel of a double-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) and adjusted to be that the double-energy compressor (10) is communicated with a newly-added compressor (A) through a high-temperature heat regenerator (15) and the high-temperature heat exchanger (7), the newly-added compressor (A) is further communicated with the expansion speed increaser (11) through a newly-added high-temperature heat exchanger (C), the expansion speed increaser (11) is provided with a steam channel which is communicated with a hybrid evaporator (9) through the high-temperature heat regenerator (15), the newly-added high-temperature heat exchanger (C) is also communicated with the outside, the expansion speed increaser (11) is connected with the newly-added compressor (A) and transmits power to form a single-working-medium combined-cycle steam power device.
13. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a newly-increased high-temperature heat exchanger and a newly-increased dual-energy compressor are added in any single working medium combined cycle steam power device of claims 2 to 4, a steam channel of the dual-energy compressor (10) is communicated with an expansion speed increaser (11) through the high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a steam channel of the newly-increased dual-energy compressor (D) through the high-temperature heat regenerator (15) and the high-temperature heat exchanger (7), the newly-increased dual-energy compressor (D) is further communicated with the expansion speed increaser (11) through the newly-increased high-temperature heat exchanger (C), the expansion speed increaser (11) is communicated with a mixing evaporator (9) through the steam channel of the mixing evaporator (9) and adjusted to be that the expansion speed increaser (11) is provided with the steam channel of the high, the newly-increased high-temperature heat exchanger (C) is also provided with a heat source medium channel communicated with the outside, and the expansion speed increaser (11) is connected with the newly-increased dual-energy compressor (D) and transmits power to form a single-working-medium combined cycle steam power device.
14. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a newly increased high-temperature heat exchanger and a newly increased diffuser pipe are added in any single working medium combined cycle steam power device of claims 2 to 4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a new diffuser pipe (E) through a high-temperature heat exchanger (15) and the high-temperature heat exchanger (7), the newly increased diffuser pipe (E) is further communicated with the expansion speed increaser (11) through a newly increased high-temperature heat exchanger (C), the expansion speed increaser (11) is communicated with a mixing evaporator (9) through a steam channel, the expansion speed increaser (11) is adjusted to be that the expansion speed increaser (11) is provided with a steam channel and is communicated with the mixing evaporator (9) through the high-temperature heat regenerator (15), the newly increased high-temperature heat, forming a single working medium combined cycle steam power plant.
15. A single working medium combined cycle steam power device is characterized in that a high-temperature heat regenerator, a new expansion machine and a new high-temperature heat exchanger are added in any single working medium combined cycle steam power device of claims 2 to 4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a steam channel of a new expansion machine (B) through a high-temperature heat regenerator (15) and the high-temperature heat exchanger (7), the new expansion machine (B) is further communicated with the expansion speed increaser (11) through a new high-temperature heat exchanger (C), the expansion speed increaser (11) is provided with a steam channel to be communicated with a hybrid evaporator (9) and adjusted to be that the expansion speed increaser (11) is provided with a steam channel to be communicated with the hybrid evaporator (9) through the high-temperature heat regenerator (15), the new high-temperature heat exchanger (C) is also communicated with the, the new expansion machine (B) is connected with the outside and transmits power to form a single working medium combined cycle steam power device.
16. A single working medium combined cycle steam power device is characterized in that a high temperature heat regenerator, a newly increased high temperature heat exchanger and a newly increased expansion speed increaser are added in any one of the single working medium combined cycle steam power devices of claims 2 to 4, a steam channel of a dual-energy compressor (10) is communicated with the expansion speed increaser (11) through the high temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with the newly increased expansion speed increaser (F) through the high temperature heat regenerator (15) and the high temperature heat exchanger (7), the newly increased expansion speed increaser (F) is further communicated with the expansion speed increaser (11) through a newly increased high temperature heat exchanger (C), the expansion speed increaser (11) is communicated with a mixing evaporator (9) through a steam channel, adjusted to be that the expansion speed increaser (11) is provided with a steam channel and communicated with the mixing evaporator (9) through the high temperature heat regenerator (15), the newly-added high-temperature heat exchanger (C) is also provided with a heat source medium channel communicated with the outside, and the newly-added expansion speed increaser (F) is connected with the outside and transmits power to form a single-working-medium combined cycle steam power device.
17. A single working medium combined cycle steam power device is characterized in that a high temperature heat regenerator, a newly-increased high temperature heat exchanger and a newly-increased spray pipe are added in any single working medium combined cycle steam power device of claims 2 to 4, a steam channel of a dual-energy compressor (10) is communicated with an expansion speed increaser (11) through a high temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (10) is communicated with a new spray pipe (G) through a high temperature heat regenerator (15) and the high temperature heat exchanger (7), the newly-increased spray pipe (G) is further communicated with the expansion speed increaser (11) through a newly-increased high temperature heat exchanger (C), the expansion speed increaser (11) is provided with a steam channel and adjusted to be that the expansion speed increaser (9) is provided with a steam channel and is communicated with a mixing evaporator (9) through the high temperature heat regenerator (15), and the newly-increased high temperature heat exchanger (C) is communicated with the outside, forming a single working medium combined cycle steam power plant.
CN201911010704.6A 2018-10-22 2019-10-16 Single working medium combined cycle steam power device Pending CN110700906A (en)

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CN2018112991732 2018-10-22

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113465203A (en) * 2020-05-26 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465205A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465204A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465206A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465207A (en) * 2020-05-26 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113587476A (en) * 2020-06-22 2021-11-02 李华玉 Second type single working medium combined cycle heat pump device
CN113587477A (en) * 2020-06-22 2021-11-02 李华玉 Second type single working medium combined cycle heat pump device
CN113720035A (en) * 2020-05-24 2021-11-30 李华玉 Phase-change type fourth-class thermally-driven compression heat pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113720035A (en) * 2020-05-24 2021-11-30 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465203A (en) * 2020-05-26 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465207A (en) * 2020-05-26 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465205A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465204A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113465206A (en) * 2020-05-27 2021-10-01 李华玉 Phase-change type fourth-class thermally-driven compression heat pump
CN113587476A (en) * 2020-06-22 2021-11-02 李华玉 Second type single working medium combined cycle heat pump device
CN113587477A (en) * 2020-06-22 2021-11-02 李华玉 Second type single working medium combined cycle heat pump device

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