CN114001480A - Regenerative thermal cycle and regenerative gas thermal power device - Google Patents
Regenerative thermal cycle and regenerative gas thermal power device Download PDFInfo
- Publication number
- CN114001480A CN114001480A CN202111125571.4A CN202111125571A CN114001480A CN 114001480 A CN114001480 A CN 114001480A CN 202111125571 A CN202111125571 A CN 202111125571A CN 114001480 A CN114001480 A CN 114001480A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- temperature heat
- medium channel
- communicated
- expander
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 claims abstract description 56
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 27
- 238000011946 reduction process Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 9
- 238000007906 compression Methods 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
-
- 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
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a regenerative thermal cycle and regenerative gas thermal device, belonging to the technical field of thermodynamics and thermodynamics. Seven processes, namely a pressure increasing process 12, a self-circulation working medium heat absorption process 23, a self-high temperature heat source heat absorption process 34, a pressure reducing process 45, a heat releasing process 56 to the circulation working medium, a pressure reducing process 67 and a heat releasing process 71 to a low temperature heat source, are sequentially carried out on the working medium with certain mass to form regenerative thermal cycle; and constructing a corresponding regenerative gas thermal power device based on regenerative thermal cycle.
Description
The technical field is as follows:
the invention belongs to the technical field of thermodynamics and thermodynamics.
Background art:
cold demand, heat demand and power demand are common in human life and production. The gas power device based on Brayton forward cycle, which takes gas as a cycle working medium, is an important means for realizing thermal work variation; under proper conditions, for example, the temperature of the circulating working medium flowing through the outlet of the expansion machine must be higher than that of the outlet of the compressor, a heat return method is adopted to improve the heat efficiency. However, in the conventional gas power plant, since the gas working medium obtains a high-temperature heat load in a sensible heat manner, a large flow rate is required to improve the heat-dependent power load of the plant; the impeller type compressor is suitable for conveying large-flow working media, but requires a lower compression ratio; therefore, in the gas thermal power device, it is of positive significance to adopt appropriate technical means to reduce the compression ratio.
The invention provides a new regenerative thermodynamic cycle, the adoption of the regenerative technical means aims at reducing the compression ratio, and is not limited by the condition that the tail end temperature of the expansion process of a cycle working medium must exceed the tail end temperature of the compression process, and the rationalization of the thermal efficiency is kept; based on a new regenerative thermodynamic cycle, the invention provides a plurality of specific regenerative gas thermal power devices.
The invention content is as follows:
the invention mainly aims to provide a regenerative thermal cycle and regenerative gas thermal power device, and the specific contents of the invention are explained in sections as follows:
1. the regenerative thermodynamic cycle is a closed process which is formed by seven processes, namely a boosting process 12, a self-circulation working medium heat absorption process 23, a self-high-temperature heat source heat absorption process 34, a pressure reduction process 45, a heat release process 56 to a circulation working medium, a pressure reduction process 67 and a heat release process 71 to a low-temperature heat source, which are sequentially performed by a certain mass of circulation working media; wherein the exotherm for process 56 satisfies the endotherm for process 23.
2. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger through the heat regenerator and the spray pipe, the low-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the heat regenerator through the dual-energy compressor, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat exchanger; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander is connected with the dual-energy compressor and transmits power to form the regenerative gas thermal power device.
3. The regenerative gas thermal power device mainly comprises an expander, a diffuser pipe, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger through the heat regenerator and the spray pipe, the low-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the heat regenerator through the diffuser pipe, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat exchanger; the high temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the low temperature heat exchanger is also provided with a cooling medium channel communicated with the outside to form a regenerative gas thermal power device.
4. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, an expansion speed increaser, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger through the heat regenerator and the expansion speed increaser, the low-temperature heat exchanger is also provided with a circulating working medium channel which is communicated with the heat regenerator through the dual-energy compressor, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the expander through the high-temperature heat exchanger; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander and the expansion speed increaser are connected with the dual-energy compressor and transmit power to form the regenerative gas thermal power device.
5. The regenerative gas thermal power device mainly comprises an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander is provided with a circulating working medium channel communicated with the low-temperature heat exchanger, the low-temperature heat exchanger and the circulating working medium channel are communicated with the high-temperature heat exchanger through the compressor and the heat regenerator, the high-temperature heat exchanger and the circulating working medium channel are communicated with the expander, and the expander and the circulating working medium channel are communicated with the expander through the heat regenerator; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the regenerative gas thermal power device.
6. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, a spray pipe, a low-temperature heat exchanger and a regenerator; the external part is provided with a heat source medium channel which is communicated with the expander, the expander is also provided with a heat source medium channel which is communicated with the low-temperature heat exchanger through the heat regenerator and the spray pipe, the low-temperature heat exchanger is also provided with a heat source medium channel which is communicated with the heat regenerator through the dual-energy compressor, and the heat regenerator is also provided with a heat source medium channel which is communicated with the external part; the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander is connected with the dual-energy compressor and transmits power to form the regenerative gas thermal power device.
7. The regenerative gas thermal power device mainly comprises an expander, a diffuser pipe, a spray pipe, a low-temperature heat exchanger and a regenerator; the heat source medium channel is communicated with the expander outside, the expander and the heat source medium channel are communicated with the low-temperature heat exchanger through the heat regenerator and the spray pipe, the heat source medium channel and the heat regenerator are communicated with the heat regenerator through the diffuser pipe, the heat regenerator and the heat source medium channel are communicated with the outside, and the low-temperature heat exchanger and the cooling medium channel are communicated with the outside to form the regenerative gas thermal power device.
8. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, an expansion speed increaser, a low-temperature heat exchanger and a regenerator; the external part is provided with a heat source medium channel communicated with the expander, the expander is also provided with a heat source medium channel communicated with the low-temperature heat exchanger through the heat regenerator and the expansion speed increaser, the low-temperature heat exchanger is also provided with a heat source medium channel communicated with the heat regenerator through the dual-energy compressor, and the heat regenerator is also provided with a heat source medium channel communicated with the external part; the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander and the expansion speed increaser are connected with the dual-energy compressor and transmit power to form the regenerative gas thermal power device.
9. The regenerative gas thermal power device mainly comprises an expander, a compressor, a low-temperature heat exchanger and a regenerator; the expander is provided with a heat source medium channel communicated with the low-temperature heat exchanger, the low-temperature heat exchanger and the heat source medium channel are communicated with the outside through a compressor and a heat regenerator, the outside is also provided with the heat source medium channel communicated with the expander, and the expander and the heat source medium channel are communicated with the expander through the heat regenerator; the low-temperature heat exchanger is also provided with a cooling medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the regenerative gas thermal power device.
10. The regenerative gas thermal power device mainly comprises an expander, a compressor, a high-temperature heat exchanger and a regenerator; the expander is provided with a cooling medium channel communicated with the outside, the outside is also provided with a cooling medium channel communicated with the high-temperature heat exchanger through the compressor and the heat regenerator, the high-temperature heat exchanger is also provided with a cooling medium channel communicated with the expander, and the expander is also provided with a cooling medium channel communicated with the expander through the heat regenerator; the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the expander is connected with the compressor and transmits power to form the regenerative gas thermal power device.
Description of the drawings:
fig. 1 is a schematic flow diagram of a regenerative thermodynamic cycle according to the present invention.
FIG. 2 is a schematic diagram of a schematic thermodynamic system of the 1 st embodiment of a regenerative gas thermal power plant according to the present invention.
FIG. 3 is a schematic diagram of a schematic thermodynamic system of the 2 nd embodiment of the regenerative gas thermal power plant according to the present invention.
FIG. 4 is a schematic diagram of the 3 rd principle thermodynamic system of a regenerative gas thermal power plant according to the present invention.
FIG. 5 is a diagram of a 4 th principle thermodynamic system of a regenerative gas thermal power plant according to the present invention.
FIG. 6 is a diagram of a schematic thermodynamic system of the 5 th embodiment of a regenerative gas thermal power plant according to the present invention.
FIG. 7 is a schematic diagram of a 6 th principle thermodynamic system of a regenerative gas thermal power plant according to the present invention.
FIG. 8 is a 7 th principle thermodynamic system diagram of a regenerative gas thermal power plant according to the present invention.
In the figure, 1-expander, 2-dual-energy compressor, 3-spray pipe, 4-high temperature heat exchanger, 5-low temperature heat exchanger, 6-heat regenerator, 7-diffuser pipe, 8-expansion speed increaser, and 9-compressor.
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 example of a regenerative thermodynamic cycle in the T-s diagram of fig. 1 is performed as follows:
(1) from the cycle process:
the cycle working medium carries out an adiabatic pressure rise and temperature rise process 12, a self-cycle working medium heat absorption and temperature rise process 23, a self-high temperature heat source heat absorption and temperature rise process 34, an adiabatic pressure drop and expansion process 45, a heat return and temperature reduction process 56 for releasing heat to the process 23, an adiabatic pressure drop and expansion process 67, and a heat release and temperature reduction process 71 for releasing heat to a low temperature heat source, which are 7 processes in total.
(2) From the energy conversion perspective:
firstly, the heat absorption process, namely the heat required by the cycle working medium to carry out the 23 processes, is satisfied by the heat release process 56, namely heat regeneration; the heat required for the process 34 of the cycle fluid is provided by a high temperature heat source.
A heat release process, namely 56 processes of heat release of the circulating working medium, is used for meeting the heat absorption requirement of the 23 processes; the circulating working medium releases heat in the 71 process and releases the heat to a low-temperature heat source.
The energy conversion process, namely the boosting process 12 of the circulating working medium, is generally completed by a compressor or a dual-energy compressor or a diffuser pipe; the decompression expansion process 45 of the cycle fluid is generally completed by an expander; the pressure reduction and expansion process 67 of the cycle fluid is generally completed by an expander, an expansion speed increaser or a spray pipe; the mechanical energy released by expansion is greater than the mechanical energy consumed by boosting, and the circulating net work is output outwards to form regenerative thermodynamic cycle.
The regenerative gas thermal power plant shown in fig. 2 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a dual-energy compressor, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a circulating working medium channel which is communicated with a low-temperature heat exchanger 5 through a heat regenerator 6 and a spray pipe 3, the low-temperature heat exchanger 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6 through a dual-energy compressor 2, and the heat regenerator 6 is also provided with a circulating working medium channel which is communicated with the expander 1 through a high-temperature heat exchanger 4; the high-temperature heat exchanger 4 is also communicated with the outside through a heat source medium channel, the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the dual-energy compressor 2 and transmits power.
(2) In the process, the circulating working medium discharged by the expander 1 flows through the heat regenerator 6 to release heat and reduce the temperature, flows through the spray pipe 3 to reduce the pressure and speed, flows through the low-temperature heat exchanger 5 to release heat and reduce the temperature, flows through the dual-energy compressor 2 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 6 and the high-temperature heat exchanger 4 to absorb heat gradually and increase the temperature, and then enters the expander 1 to reduce the pressure and do work; the heat source medium provides high-temperature heat load through the high-temperature heat exchanger 4, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expander 1 is provided for the dual-energy compressor 2 and the external acting force to form the regenerative gas thermal power device.
The regenerative gas thermal power plant shown in fig. 3 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a diffuser pipe, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger 5 through the heat regenerator 6 and the spray pipe 3, the low-temperature heat exchanger 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6 through the diffuser pipe 7, and the heat regenerator 6 is also provided with a circulating working medium channel which is communicated with the expander 1 through the high-temperature heat exchanger 4; the high-temperature heat exchanger 4 is also communicated with the outside through a heat source medium channel, and the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel.
(2) In the process, the circulating working medium discharged by the expander 1 flows through the heat regenerator 6 to release heat and reduce the temperature, flows through the spray pipe 3 to reduce the pressure and increase the speed, flows through the low-temperature heat exchanger 5 to release heat and reduce the temperature, flows through the diffuser pipe 7 to reduce the speed and increase the pressure, flows through the heat regenerator 6 and the high-temperature heat exchanger 4 to gradually absorb heat and increase the temperature, and then enters the expander 1 to reduce the pressure and do work; the heat source medium provides high-temperature heat load through the high-temperature heat exchanger 4, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expander 1 is provided for external acting power to form the regenerative gas thermal power device.
The regenerative gas thermal power plant shown in fig. 4 is realized by:
(1) structurally, the system mainly comprises an expander, a dual-energy compressor, an expansion speed increaser, a high-temperature heat exchanger, a low-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger 5 through the heat regenerator 6 and the expansion speed increaser 8, the low-temperature heat exchanger 5 is also provided with a circulating working medium channel which is communicated with the heat regenerator 6 through the dual-energy compressor 2, and the heat regenerator 6 is also provided with a circulating working medium channel which is communicated with the expander 1 through the high-temperature heat exchanger 4; the high-temperature heat exchanger 4 is also communicated with the outside through a heat source medium channel, the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel, and the expander 1 and the expansion speed increaser 8 are connected with the dual-energy compressor 2 and transmit power.
(2) In the process, the circulating working medium discharged by the expander 1 flows through the heat regenerator 6 to release heat and reduce temperature, flows through the expansion speed increaser 8 to reduce pressure, do work and increase speed, flows through the low-temperature heat exchanger 5 to release heat and reduce temperature, flows through the dual-energy compressor 2 to increase pressure, increase temperature and reduce speed, flows through the heat regenerator 6 and the high-temperature heat exchanger 4 to absorb heat gradually and increase temperature, and then enters the expander 1 to reduce pressure and do work; the heat source medium provides high-temperature heat load through the high-temperature heat exchanger 4, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expansion machine 1 and the expansion speed-increasing machine 8 is provided for the dual-energy compressor 2 and the external part as power, so that the regenerative gas thermal power device is formed.
The regenerative gas thermal power plant shown in fig. 5 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a circulating working medium channel communicated with the low-temperature heat exchanger 5, the low-temperature heat exchanger 5 and the circulating working medium channel are communicated with the high-temperature heat exchanger 4 through the compressor 9 and the heat regenerator 6, the high-temperature heat exchanger 4 and the circulating working medium channel are communicated with the expander 1, and the expander 1 and the circulating working medium channel are communicated with the expander 1 through the heat regenerator 6; the high-temperature heat exchanger 4 is also communicated with the outside through a heat source medium channel, the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 9 and transmits power.
(2) In the process, the circulating working medium discharged by the expander 1 passes through the low-temperature heat exchanger 5 to release heat and reduce temperature, passes through the compressor 9 to increase pressure and temperature, passes through the heat regenerator 6 and the high-temperature heat exchanger 4 to gradually absorb heat and increase temperature, enters the expander 1 to reduce pressure and do work to a certain degree, then passes through the heat regenerator 6 to release heat and reduce temperature, and then enters the expander 1 to continue reducing pressure and do work; the heat source medium provides high-temperature heat load through the high-temperature heat exchanger 4, the cooling medium takes away low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expander 1 is provided for the compressor 9 and the external acting force to form the regenerative gas thermal power device.
The regenerative gas thermal power plant shown in fig. 6 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a dual-energy compressor, a spray pipe, a low-temperature heat exchanger and a heat regenerator; a heat source medium channel is arranged outside and communicated with the expander 1, the expander 1 is also communicated with the low-temperature heat exchanger 5 through the heat regenerator 6 and the spray pipe 3, the low-temperature heat exchanger 5 is also communicated with the heat regenerator 6 through the dual-energy compressor 2, and the heat regenerator 6 is also communicated with the outside through the heat source medium channel; the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the dual-energy compressor 2 and transmits power.
(2) In the process, an external heat source medium flows through the expander 1 to reduce the pressure and do work, flows through the heat regenerator 6 to release heat and reduce the temperature, flows through the spray pipe 3 to reduce the pressure and increase the speed, flows through the low-temperature heat exchanger 5 to release heat and reduce the temperature, flows through the dual-energy compressor 2 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 6 to absorb heat and increase the temperature, and then is discharged outwards; the heat source medium provides high-temperature heat load through the inlet and outlet flow, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expander 1 is provided for the dual-energy compressor 2 and the external acting power to form the regenerative gas thermal power device.
The regenerative gas thermal power plant shown in fig. 7 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a compressor, a low-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a heat source medium channel communicated with the low-temperature heat exchanger 5, the low-temperature heat exchanger 5 and the heat source medium channel are communicated with the outside through a compressor 9 and a heat regenerator 6, the outside is also provided with a heat source medium channel communicated with the expander 1, and the expander 1 and the heat source medium channel are communicated with the expander 1 through the heat regenerator 6; the low-temperature heat exchanger 5 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 9 and transmits power.
(2) In the process, an external heat source medium enters the expansion machine 1 to perform decompression work to a certain degree, then flows through the heat regenerator 6 to release heat and reduce temperature, and then enters the expansion machine 1 to perform decompression work continuously; the heat source medium discharged by the expander 1 is discharged and cooled by flowing through the low-temperature heat exchanger 5, is boosted and heated by flowing through the compressor 9, is absorbed and heated by flowing through the heat regenerator 6, and is discharged outwards; the heat source medium provides high-temperature heat load through the inlet and outlet flow, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expander 1 is provided for the compressor 9 and the external acting power to form the regenerative gas thermal power device.
The regenerative gas thermal power plant shown in fig. 8 is realized by:
(1) structurally, the heat exchanger mainly comprises an expander, a compressor, a high-temperature heat exchanger and a heat regenerator; the expander 1 is provided with a cooling medium channel communicated with the outside, the outside is also provided with a cooling medium channel communicated with the high-temperature heat exchanger 4 through the compressor 9 and the heat regenerator 6, the high-temperature heat exchanger 4 is also provided with a cooling medium channel communicated with the expander 1, and the expander 1 is also provided with a cooling medium channel communicated with the expander 1 through the heat regenerator 6; the high-temperature heat exchanger 4 is also communicated with the outside through a heat source medium channel, and the expander 1 is connected with the compressor 9 and transmits power.
(2) In the process, an external cooling medium flows through the compressor 9 to increase the pressure and the temperature, flows through the heat regenerator 6 and the high-temperature heat exchanger 4 to gradually absorb heat and increase the temperature, enters the expander 1 to reduce the pressure and do work to a certain degree, then flows through the heat regenerator 6 to release heat and reduce the temperature, and then enters the expander 1 to continuously reduce the pressure and do work and is discharged outwards; the heat source medium provides high-temperature heat load through the high-temperature heat exchanger 4, the cooling medium brings low-temperature heat load through the inlet and outlet process, and the work output by the expander 1 is provided for the compressor 9 and the external acting power, so that the regenerative gas thermal power device is formed.
The effect that the technology of the invention can realize-the regenerative thermodynamic cycle and regenerative gas thermodynamic device provided by the invention has the following effects and advantages:
(1) the regenerative thermodynamic cycle conforms to the thermodynamic principle; the heat regeneration mode is flexible, and the heat regeneration amplitude can be adjusted.
(2) The heat regeneration type thermodynamic cycle is characterized in that different temperature differences correspond to proper heat regeneration amplitude, and reasonable heat efficiency is kept.
(3) The regenerative thermal cycle effectively reduces the cycle compression ratio and provides a basic working principle for improving the flow of the cycle working medium and selecting a large-flow compressor.
(4) A regenerative gas thermal power device provides various technical schemes and realizes reasonable utilization of energy.
(5) The heat return type gas thermal power device has simple and reasonable technical measures and is beneficial to expanding the application range of the gas thermal power device.
Claims (10)
1. The regenerative thermodynamic cycle is a closed process which is formed by seven processes, namely a boosting process 12, a self-circulation working medium heat absorption process 23, a self-high-temperature heat source heat absorption process 34, a pressure reduction process 45, a heat release process 56 to a circulation working medium, a pressure reduction process 67 and a heat release process 71 to a low-temperature heat source, which are sequentially performed by a certain mass of circulation working media; wherein the exotherm for process 56 satisfies the endotherm for process 23.
2. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion machine (1) is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger (5) through the heat regenerator (6) and the spray pipe (3), the low-temperature heat exchanger (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6) through the dual-energy compressor (2), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the expansion machine (1) through the high-temperature heat exchanger (4); the high-temperature heat exchanger (4) is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside, and the expander (1) is connected with the dual-energy compressor (2) and transmits power to form the regenerative gas thermal power device.
3. The regenerative gas thermal power device mainly comprises an expander, a diffuser pipe, a spray pipe, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion machine (1) is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger (5) through the heat regenerator (6) and the spray pipe (3), the low-temperature heat exchanger (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6) through the diffuser pipe (7), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the expansion machine (1) through the high-temperature heat exchanger (4); the high-temperature heat exchanger (4) is also provided with a heat source medium channel communicated with the outside, and the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside to form the regenerative gas thermal power device.
4. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, an expansion speed increaser, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion machine (1) is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger (5) through the heat regenerator (6) and the expansion speed increaser (8), the low-temperature heat exchanger (5) is also provided with a circulating working medium channel which is communicated with the heat regenerator (6) through the dual-energy compressor (2), and the heat regenerator (6) is also provided with a circulating working medium channel which is communicated with the expansion machine (1) through the high-temperature heat exchanger (4); the high-temperature heat exchanger (4) is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside, and the expander (1) and the expansion speed increaser (8) are connected with the dual-energy compressor (2) and transmit power to form the regenerative gas thermal power device.
5. The regenerative gas thermal power device mainly comprises an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander (1) is provided with a circulating working medium channel which is communicated with the low-temperature heat exchanger (5), the low-temperature heat exchanger (5) is also provided with a circulating working medium channel which is communicated with the high-temperature heat exchanger (4) through a compressor (9) and a heat regenerator (6), the high-temperature heat exchanger (4) is also provided with a circulating working medium channel which is communicated with the expander (1), and the expander (1) is also provided with a circulating working medium channel which is communicated with the expander through the heat regenerator (6); the high-temperature heat exchanger (4) is also provided with a heat source medium channel communicated with the outside, the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside, and the expander (1) is connected with the compressor (9) and transmits power to form the regenerative gas thermal power device.
6. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, a spray pipe, a low-temperature heat exchanger and a regenerator; the external part is provided with a heat source medium channel which is communicated with the expander (1), the expander (1) is also provided with a heat source medium channel which is communicated with the low-temperature heat exchanger (5) through the heat regenerator (6) and the spray pipe (3), the low-temperature heat exchanger (5) is also provided with a heat source medium channel which is communicated with the heat regenerator (6) through the dual-energy compressor (2), and the heat regenerator (6) is also provided with a heat source medium channel which is communicated with the external part; the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside, and the expander (1) is connected with the dual-energy compressor (2) and transmits power to form the regenerative gas thermal power device.
7. The regenerative gas thermal power device mainly comprises an expander, a diffuser pipe, a spray pipe, a low-temperature heat exchanger and a regenerator; the external part is provided with a heat source medium channel communicated with the expander (1), the expander (1) is also provided with a heat source medium channel communicated with the low-temperature heat exchanger (5) through a heat regenerator (6) and a spray pipe (3), the low-temperature heat exchanger (5) is also provided with a heat source medium channel communicated with the heat regenerator (6) through a diffuser pipe (7), the heat regenerator (6) is also provided with a heat source medium channel communicated with the external part, and the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the external part to form the regenerative gas thermal power device.
8. The regenerative gas thermal power device mainly comprises an expander, a dual-energy compressor, an expansion speed increaser, a low-temperature heat exchanger and a regenerator; the external part is provided with a heat source medium channel which is communicated with the expander (1), the expander (1) is also provided with a heat source medium channel which is communicated with the low-temperature heat exchanger (5) through the heat regenerator (6) and the expansion speed increaser (8), the low-temperature heat exchanger (5) is also provided with a heat source medium channel which is communicated with the heat regenerator (6) through the dual-energy compressor (2), and the heat regenerator (6) is also provided with a heat source medium channel which is communicated with the external part; the low-temperature heat exchanger (5) is also provided with a cooling medium channel communicated with the outside, and the expander (1) and the expansion speed increaser (8) are connected with the dual-energy compressor (2) and transmit power to form the regenerative gas thermal power device.
9. The regenerative gas thermal power device mainly comprises an expander, a compressor, a low-temperature heat exchanger and a regenerator; the expander (1) is provided with a heat source medium channel communicated with the low-temperature heat exchanger (5), the low-temperature heat exchanger (5) is also provided with a heat source medium channel communicated with the outside through a compressor (9) and a heat regenerator (6), the outside is also provided with a heat source medium channel communicated with the expander (1), and the expander (1) is also provided with a heat source medium channel communicated with the expander through the heat regenerator (6); the low-temperature heat exchanger (5) is also provided with a cooling medium channel which is communicated with the outside, and the expander (1) is connected with the compressor (9) and transmits power to form the regenerative gas thermal power device.
10. The regenerative gas thermal power device mainly comprises an expander, a compressor, a high-temperature heat exchanger and a regenerator; the expander (1) is provided with a cooling medium channel communicated with the outside, the outside is also provided with a cooling medium channel communicated with the high-temperature heat exchanger (4) through the compressor (9) and the heat regenerator (6), the high-temperature heat exchanger (4) is also provided with a cooling medium channel communicated with the expander (1), and the expander (1) is also provided with a cooling medium channel communicated with the expander through the heat regenerator (6); the high-temperature heat exchanger (4) is also provided with a heat source medium channel communicated with the outside, and the expander (1) is connected with the compressor (9) and transmits power to form the regenerative gas thermal power device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046395 | 2020-09-21 | ||
| CN2020110463950 | 2020-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114001480A true CN114001480A (en) | 2022-02-01 |
Family
ID=79921632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111125571.4A Pending CN114001480A (en) | 2020-09-21 | 2021-09-16 | Regenerative thermal cycle and regenerative gas thermal power device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114001480A (en) |
| WO (1) | WO2022057163A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379606A (en) * | 2019-03-03 | 2020-07-07 | 李华玉 | Combined cycle power plant |
| CN111608751A (en) * | 2019-05-02 | 2020-09-01 | 李华玉 | Combined cycle power plant |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011256818A (en) * | 2010-06-11 | 2011-12-22 | Motoaki Utamura | Exhaust heat recovery power plant and combined plant |
| CN101936274A (en) * | 2010-08-06 | 2011-01-05 | 绍兴文理学院 | Thermal power generation system based on gas turbine circulation in solar energy regeneration reheating inter-cooling |
| US9234442B2 (en) * | 2013-11-19 | 2016-01-12 | General Electric Company | Steam turbine system and control system therefor |
| US11008898B2 (en) * | 2016-10-12 | 2021-05-18 | Huayu Li | Single working-medium vapor combined cycle and vapor power device for combined cycle |
| IT201700015175A1 (en) * | 2017-02-10 | 2018-08-10 | Spada S R L | Semi-closed first internal combustion engine and semi-closed thermodynamic process for power production |
| CN110685761A (en) * | 2018-11-04 | 2020-01-14 | 李华玉 | Staged evaporation combined cycle power device |
| CN111594289A (en) * | 2020-06-17 | 2020-08-28 | 湖南大学 | Carbon dioxide Brayton cycle and turbocharged internal combustion engine waste heat utilization system |
-
2021
- 2021-09-16 WO PCT/CN2021/000186 patent/WO2022057163A1/en active Application Filing
- 2021-09-16 CN CN202111125571.4A patent/CN114001480A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379606A (en) * | 2019-03-03 | 2020-07-07 | 李华玉 | Combined cycle power plant |
| CN111608751A (en) * | 2019-05-02 | 2020-09-01 | 李华玉 | Combined cycle power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022057163A1 (en) | 2022-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114001480A (en) | Regenerative thermal cycle and regenerative gas thermal power device | |
| CN114001479A (en) | Regenerative thermal cycle and regenerative gas thermal power device | |
| CN201991617U (en) | Circulating power generation system of pressurized water reactor nuclear power gas turbine | |
| CN115218506A (en) | Backheating type thermodynamic cycle and intermediate backheating mechanical compression heat pump | |
| CN110700911A (en) | Gas power device | |
| CN114320600A (en) | Open type regenerative cycle and regenerative gas turbine device | |
| CN115217566A (en) | Regenerative thermal cycle and regenerative gas thermal power device | |
| CN114001481A (en) | Backheating type thermodynamic cycle and novel backheating mechanical compression heat pump | |
| CN114001482A (en) | Backheating type thermodynamic cycle and novel backheating mechanical compression heat pump | |
| CN117722322A (en) | Photo-thermal gas circulation power device with same nuclear energy | |
| CN117722246A (en) | Combined cycle gas power plant | |
| CN117766180A (en) | Dual-energy heat source system and nuclear energy carried same heat energy thermodynamic cycle device | |
| CN117927372A (en) | Photo-thermal energy carrying and same combined cycle power device | |
| CN117846774A (en) | Multi-energy heat source system and direct-fired energy carrying same-heat-driven circulating device | |
| CN117948203A (en) | Direct-fired fuel carrying same-photo-thermal power circulating device | |
| CN117005930A (en) | combined cycle gas power plant | |
| CN117722255A (en) | Regenerative thermal cycle device | |
| CN117759374A (en) | Photo-thermal carrying and heat energy regenerative thermal cycle device | |
| CN117606159A (en) | Split flow regenerative first type heating combined cycle | |
| CN118110643A (en) | Photo-thermal gas-steam combined cycle power device with same nuclear energy | |
| CN117514395A (en) | Nuclear energy carrying same heat energy thermal cycle device | |
| CN117189359A (en) | Fuel carrying same-light-heat combined cycle gas power device | |
| CN118148730A (en) | Energy carrying and same combined cycle power device | |
| CN111380248A (en) | Third-class thermally-driven compression heat pump | |
| CN117514396A (en) | Fuel carrying same nuclear energy combined cycle power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |