WO2022062270A1 - Recuperative thermodynamic cycle and recuperative gas thermal power apparatus - Google Patents

Recuperative thermodynamic cycle and recuperative gas thermal power apparatus Download PDF

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Publication number
WO2022062270A1
WO2022062270A1 PCT/CN2021/000187 CN2021000187W WO2022062270A1 WO 2022062270 A1 WO2022062270 A1 WO 2022062270A1 CN 2021000187 W CN2021000187 W CN 2021000187W WO 2022062270 A1 WO2022062270 A1 WO 2022062270A1
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Prior art keywords
heat exchanger
temperature heat
medium channel
compressor
regenerator
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PCT/CN2021/000187
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French (fr)
Chinese (zh)
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李华玉
李鸿瑞
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李华玉
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Publication of WO2022062270A1 publication Critical patent/WO2022062270A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression

Definitions

  • the invention belongs to the technical field of thermodynamics and thermodynamics.
  • the gas power device based on Brayton forward cycle is an important means to realize thermal power conversion; under appropriate conditions - for example, the temperature of the circulating working medium flowing through the outlet of the expander must be higher than that of the compressor The temperature of the outlet of the machine - adopt the means of recuperation to improve the thermal efficiency.
  • the impeller compressor is suitable for conveying a large flow of working medium, but requires a lower Compression ratio; therefore, in the gas thermal device, it is of positive significance to take appropriate technical means to reduce the compression ratio.
  • the invention proposes a new regenerative thermodynamic cycle.
  • the regenerative technology is used for the purpose of reducing the compression ratio, and is not limited by the condition that the temperature at the end of the expansion process of the circulating working medium must exceed the temperature at the end of the compression process.
  • the parameters are flexible and the thermal efficiency is kept rational; based on the new regenerative thermodynamic cycle, the present invention provides a plurality of specific regenerative gas thermodynamic devices.
  • the main purpose of the present invention is to provide a regenerative thermodynamic cycle and a regenerative gas thermodynamic device.
  • the specific contents of the invention are described as follows:
  • Regenerative thermodynamic cycle refers to seven processes carried out by a certain quality of circulating working fluid in sequence - the boosting process 12, the self-circulating working fluid endothermic process 23, the boosting process 34, the heat absorption process from a high temperature heat source Process 45, depressurization process 56, exothermic process 67 to the circulating working medium, exothermic process 71 to the low temperature heat source—a closed process composed; wherein, the exothermic process of process 67 meets the endothermic process of process 23.
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator; the expansion speed-up machine has a circulating working medium channel through The regenerator is communicated with the low temperature heat exchanger, the low temperature heat exchanger and the circulating working fluid channel are communicated with the compressor through the diffuser pipe and the regenerator, and the compressor and the circulating working fluid channel are connected with the expansion speed through the high temperature heat exchanger.
  • the high temperature heat exchanger and the heat source medium channel are connected to the outside, the low temperature heat exchanger and the cooling medium channel are connected to the outside, and the expansion speed up machine is connected to the compressor and transmits power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser tube, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion speed-up machine has a circulating working fluid The channel is communicated with the low temperature heat exchanger through the regenerator.
  • the low temperature heat exchanger and the circulating working fluid channel are connected with the dual-energy compressor through the diffuser tube and the regenerator.
  • the dual-energy compressor and the circulating working fluid channel are heated by the high temperature.
  • the exchanger is communicated with the expansion and speed-up machine; the high-temperature heat exchanger and the heat source medium channel are communicated with the outside, the low-temperature heat exchanger and the cooling medium channel are communicated with the outside, and the expansion speed-up machine is connected to the dual-energy compressor and transmits power to form a return.
  • Thermal gas thermodynamic device
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed up machine, a diffuser tube, a second diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator;
  • the mass channel is communicated with the low temperature heat exchanger through the regenerator, and the low temperature heat exchanger and the circulating working medium channel are communicated with the second diffuser tube through the diffuser tube and the regenerator, and the second diffuser tube also has a circulating working medium channel.
  • the high temperature heat exchanger is connected with the expansion speed increaser through the high temperature heat exchanger; the high temperature heat exchanger also has a heat source medium channel connected with the outside, and the low temperature heat exchanger also has a cooling medium channel connected with the outside to form a regenerative gas thermodynamic device.
  • the regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander has a circulating working medium channel that passes through the regenerator and the low-temperature heat exchanger The low temperature heat exchanger and the circulating working medium channel are communicated with the compressor, the compressor and the circulating working medium channel are communicated with itself through the regenerator, and the compressor and the circulating working medium channel are communicated with the expander through the high temperature heat exchanger.
  • the high-temperature heat exchanger also has a heat source medium channel that communicates with the outside, and the low-temperature heat exchanger has a cooling medium channel that communicates with the outside.
  • the expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expansion speed-up machine, and the expansion speed-up speed is increased.
  • the compressor also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator, and the low-temperature heat exchanger also has a heat source medium channel that communicates with the compressor through the diffuser tube and the regenerator, and the compressor and the heat source medium channel communicate with the outside;
  • the low-temperature heat exchanger also has a cooling medium channel that communicates with the outside, and the expansion and speed-up machine is connected to the compressor and transmits power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser tube, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected with the expansion speed-up machine, and the expansion
  • the speed increaser also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator.
  • the low-temperature heat exchanger also has a heat source medium channel that communicates with the dual-energy compressor through the diffuser tube and the regenerator.
  • the dual-energy compressor also has a heat source.
  • the medium channel is communicated with the outside; the low-temperature heat exchanger and the cooling medium channel are communicated with the outside, and the expansion and speed-up machine is connected to the dual-energy compressor and transmits power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a diffuser tube, a second diffuser tube, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expansion speed-up machine.
  • the expansion speed-up machine also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator, and the low-temperature heat exchanger also has a heat source medium channel that communicates with the second diffuser tube through the diffuser tube and the regenerator.
  • the second diffuser tube There is also a heat source medium channel that communicates with the outside, and a low-temperature heat exchanger and a cooling medium channel that communicates with the outside to form a regenerative gas thermodynamic device.
  • the regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expander, and the expander and the heat source medium channel pass through the regenerator. It communicates with the low-temperature heat exchanger, the low-temperature heat exchanger and the heat source medium channel communicate with the compressor, the compressor and the heat source medium channel communicate with itself through the regenerator, and the compressor and the heat source medium channel communicate with the outside; the low-temperature heat exchange
  • the compressor also has a cooling medium channel that communicates with the outside, and the expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high temperature heat exchanger and a regenerator; there is also a cooling medium channel connected to the compressor outside, and the compressor and the cooling medium channel are reheated
  • the compressor and the cooling medium channel communicate with the expander through the high temperature heat exchanger, the expander and the cooling medium channel communicate with the outside through the regenerator; the high temperature heat exchanger and the heat source medium channel communicate with the outside,
  • the expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
  • FIG. 1/8 is an exemplary schematic flow chart of a regenerative thermodynamic cycle provided according to the present invention.
  • Fig. 2/8 is a first principle thermodynamic system diagram of the regenerative gas thermodynamic device provided according to the present invention.
  • Fig. 3/8 is the second principle thermodynamic system diagram of the regenerative gas thermodynamic device provided according to the present invention.
  • 4/8 are diagrams of the third principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
  • 5/8 are diagrams of the fourth principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
  • 6/8 are diagrams of the fifth principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
  • thermodynamic system diagrams of the regenerative gas thermodynamic device provided according to the present invention.
  • 1-expansion speed increaser 2-compressor, 3-diffuser pipe, 4-high temperature heat exchanger, 5-low temperature heat exchanger, 6-regenerator, 7-dual energy compressor, 8- Second diffuser, 9-expander.
  • Circulating working fluid is carried out - adiabatic boosting process 12, self-circulating working fluid endothermic heating process 23, adiabatic boosting process 34, endothermic heating process 45 from high temperature heat source, adiabatic depressurization process 56, exothermic cooling to circulating working fluid Process 67, releasing heat to the low-temperature heat source and cooling process 71—a total of 7 processes.
  • Energy conversion process - the boosting process 12 and the boosting process 34 of the circulating working fluid are generally completed by a compressor or a dual-energy compressor or a diffuser; the depressurizing and expanding process 56 of the circulating working fluid is generally performed by an expander Or expansion speed up machine to complete; the mechanical energy released by expansion is greater than the mechanical energy consumed by boosting, and the net work of the cycle is output to the outside, forming a regenerative thermodynamic cycle.
  • the regenerative gas thermodynamic device shown in Figure 2/8 is implemented as follows:
  • the compressor 6 is communicated with the low-temperature heat exchanger 5, and the low-temperature heat exchanger 5 and the circulating working fluid channel are communicated with the compressor 2 through the diffuser tube 3 and the regenerator 6, and the compressor 2 and the circulating working fluid channel are subjected to high-temperature heat exchange.
  • the high-temperature heat exchanger 4 also has a heat source medium channel that communicates with the outside
  • the low-temperature heat exchanger 5 also has a cooling medium channel that communicates with the outside.
  • the expansion and speed-up machine 1 is connected to the compressor 2 and transmits power. .
  • the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the
  • the regenerator 6 absorbs heat to heat up, flows through the compressor 2 to increase the pressure, and flows through the high-temperature heat exchanger 4 to absorb heat and heat up, and then enters the expansion speed-up machine 1 to depressurize and increase the speed; the heat source medium passes 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 speed up machine 1 is provided to the compressor 2 and the external power to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device shown in Figure 3/8 is implemented as follows:
  • the mass channel communicates with the expansion speed-up machine 1 through the high-temperature heat exchanger 4; the high-temperature heat exchanger 4 also has a heat source medium channel to communicate with the outside, the low-temperature heat exchanger 5 also has a cooling medium channel to communicate with the outside, and the expansion speed-up machine 1 is connected. Dual energy compressor 7 and transmit power.
  • the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the
  • the regenerator 6 absorbs heat to heat up, flows through the dual-energy compressor 7 to increase the pressure and heat up and decelerates, flows through the high-temperature heat exchanger 4 to absorb heat to heat up, and then enters the expansion speed increaser 1 to decompress and increase the speed; the heat source medium
  • the high-temperature heat load is provided by the high-temperature heat exchanger 4, the low-temperature heat load is taken away by the cooling medium through the low-temperature heat exchanger 5, and the work output by the expansion speed up machine 1 is provided to the dual-energy compressor 7 and the external power to form a regenerative gas Thermal device.
  • the regenerative gas thermodynamic device shown in Figure 4/8 is implemented as follows:
  • the expansion speed up machine 1 has a circulating working medium channel It is communicated with the low temperature heat exchanger 5 through the regenerator 6, and the low temperature heat exchanger 5 and the circulating working medium channel are communicated with the second diffuser tube 8 through the diffuser tube 3 and the regenerator 6, and the second diffuser tube 8 is also connected.
  • a circulating working medium channel communicates with the expansion speed up machine 1 through a high temperature heat exchanger 4; the high temperature heat exchanger 4 also has a heat source medium channel communicated with the outside, and the low temperature heat exchanger 5 also has a cooling medium channel communicated with the outside.
  • the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the
  • the regenerator 6 absorbs heat and increases the temperature, flows through the second diffuser 8 to decelerate and increase the pressure, and flows through the high-temperature heat exchanger 4 to absorb heat and increase the temperature, and then enters the expansion speed increaser 1 to decompress and increase the speed; the heat source medium passes through The high temperature heat exchanger 4 provides the high temperature heat load, the cooling medium takes away the low temperature heat load through the low temperature heat exchanger 5, and the work output by the expansion speed increaser 1 is provided to the external power to form a regenerative gas thermal power device.
  • the regenerative gas thermodynamic device shown in Figure 5/8 is implemented as follows:
  • the heat exchanger 4 communicates with the expander 9; the high temperature heat exchanger 4 also has a heat source medium channel to communicate with the outside, the low temperature heat exchanger 5 also has a cooling medium channel to communicate with the outside, and the expander 9 is connected to the compressor 2 and transmits power.
  • the circulating working medium discharged from the expander 9 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, and enters the compressor 2 to increase the pressure and heat up to a certain degree and then flows through the recuperation.
  • the compressor 6 absorbs heat and heats up, and then enters the compressor 2 to continue to increase the pressure and heat up;
  • the circulating working medium discharged from the compressor 2 flows through the high-temperature heat exchanger 4 to absorb heat and heat up, and then enters the expander 9 to depressurize and perform work; the heat source medium passes through the high-temperature heat.
  • the heat exchanger 4 provides high temperature heat load, the cooling medium takes away the low temperature heat load through the low temperature heat exchanger 5, and the work output by the expander 9 is provided to the compressor 2 and the external power to form a regenerative gas thermodynamic device.
  • the regenerative gas thermodynamic device shown in Fig. 6/8 is realized as follows:
  • the engine 1 also has a heat source medium channel that communicates with the low-temperature heat exchanger 5 through the regenerator 6, and the low-temperature heat exchanger 5 also has a heat source medium channel that communicates with the dual-energy compressor 7 through the diffuser tube 3 and the regenerator 6.
  • the compressor 7 also has a heat source medium channel that communicates with the outside; the low-temperature heat exchanger 5 also has a cooling medium channel that communicates with the outside, and the expansion speed-up machine 1 is connected to the dual-energy compressor 7 and transmits power.
  • the external heat source medium flows through the expander 1 to depressurize and increase the speed, and flows through the regenerator 6 and the low-temperature heat exchanger 5 to gradually release heat and cool down, and flows through the diffuser 3 to reduce the speed and increase the pressure.
  • the heat load, the work output by the expansion and speed up machine 1 is provided to the dual-energy compressor 7 and the external power to form a regenerative gas thermal power device.
  • the regenerative gas thermodynamic device shown in Fig. 7/8 is realized as follows:
  • the external heat source medium flows through the expander 1 to decompress and perform work, flows through the regenerator 6 and the low-temperature heat exchanger 5 to gradually release heat and cool down, and then enters the compressor 2 to increase the pressure and heat up to a certain degree and then flows through the
  • the regenerator 6 absorbs heat and heats up, and then enters the compressor 2 to continue to increase the pressure and heat up and discharge it to the outside; Provide power to the compressor 2 and the outside to form a regenerative gas thermal device.
  • the regenerative gas thermodynamic device shown in Fig. 8/8 is realized as follows:
  • 6 communicates with itself, the compressor 2 also has a cooling medium channel that communicates with the expander 9 through the high-temperature heat exchanger 4, and the expander 9 also has a cooling medium channel that communicates with the outside through the regenerator 6; the high-temperature heat exchanger 4 also has a heat source.
  • the medium channel communicates with the outside, and the expander 9 is connected to the compressor 2 and transmits power.
  • the external cooling medium enters the compressor 2 to increase the pressure and heat up to a certain degree, and then flows through the regenerator 6 to absorb heat and heat up, and then enters the compressor 2 to continue to increase the pressure and heat up; the cooling medium discharged from the compressor 2 flows through the high temperature
  • the heat exchanger 4 absorbs heat to increase temperature, flows through the expander 9 to depressurize, and then flows through the regenerator 6 to release heat and cool down, and then discharge to the outside; Taking away the low temperature heat load, the work output by the expander 9 is provided to the compressor 2 and the external power to form a regenerative gas thermal device.
  • the regenerative thermodynamic cycle is in line with the thermodynamic principle; the regenerative parameters (such as pressure) are flexible, and the regenerative amplitude can be adjusted.
  • the regenerative thermodynamic cycle can effectively reduce the cycle compression ratio, and provide the basic working principle for improving the circulating working medium flow and selecting a large-flow compressor.
  • the regenerative gas thermal device provides a variety of technical solutions to realize the rational utilization of energy.
  • the regenerative gas thermodynamic device has simple and reasonable technical measures, which is beneficial to expand the application range of the gas thermodynamic device.

Abstract

A recuperative thermodynamic cycle and a recuperative gas thermal power apparatus, which belong to the technical fields of thermodynamics and thermal power. The regenerative thermodynamic cycle refers to a closed process which consists of seven processes performed in sequence by a cycle working medium with a certain mass, i.e. a pressure boosting process 12, a self-cycle working medium endothermic process 23, a pressure boosting process 34, a process 45 of absorbing heat from a high-temperature heat source, a depressurization process 56, a process 67 of releasing heat to a cycle working medium, and a process 71 of releasing heat to a low-temperature heat source. On the basis of the regenerative thermodynamic cycle, a corresponding recuperative gas thermal power apparatus is constructed.

Description

回热式热力循环与回热式气体热动装置Regenerative thermodynamic cycle and regenerative gas thermodynamic device 技术领域：Technical field:
本发明属于热力学与热动技术领域。The invention belongs to the technical field of thermodynamics and thermodynamics.
背景技术：Background technique:
冷需求、热需求和动力需求，为人类生活与生产当中所常见。以气体为循环工质，基于布雷顿正向循环的气体动力装置，是实现热变功的重要手段；在适当条件下——比如，循环工质流经膨胀机出口时的温度必须要大于压缩机出口的温度——采用回热手段，以提高热效率。不过，在传统的气体动力装置中，由于气体工质以显热方式获取高温热负荷，需要大流量以提高装置热变功负荷；叶轮式压缩机适合输送大流量工作介质，但要求较低的压缩比；因此，在气体热动装置中，采取适当的技术手段来降低压缩比具有积极意义。Cold demand, heat demand and power demand are common in human life and production. Taking gas as the circulating working medium, the gas power device based on Brayton forward cycle is an important means to realize thermal power conversion; under appropriate conditions - for example, the temperature of the circulating working medium flowing through the outlet of the expander must be higher than that of the compressor The temperature of the outlet of the machine - adopt the means of recuperation to improve the thermal efficiency. However, in the traditional gas power plant, since the gas working medium obtains the high temperature heat load by sensible heat, a large flow rate is required to increase the thermal variable power load of the device; the impeller compressor is suitable for conveying a large flow of working medium, but requires a lower Compression ratio; therefore, in the gas thermal device, it is of positive significance to take appropriate technical means to reduce the compression ratio.
本发明提出了一种新的回热式热力循环，其回热技术手段的采用以降低压缩比为目的，且不受制于循环工质膨胀过程末端温度必须超过压缩过程末端温度条件限制，回热参数灵活，并保持热效率的合理化；基于新的回热式热力循环，本发明给出了多个具体的回热式气体热动装置。The invention proposes a new regenerative thermodynamic cycle. The regenerative technology is used for the purpose of reducing the compression ratio, and is not limited by the condition that the temperature at the end of the expansion process of the circulating working medium must exceed the temperature at the end of the compression process. The parameters are flexible and the thermal efficiency is kept rational; based on the new regenerative thermodynamic cycle, the present invention provides a plurality of specific regenerative gas thermodynamic devices.
发明内容：Invention content:
本发明主要目的是要提供回热式热力循环与回热式气体热动装置，具体发明内容分项阐述如下：The main purpose of the present invention is to provide a regenerative thermodynamic cycle and a regenerative gas thermodynamic device. The specific contents of the invention are described as follows:
1.回热式热力循环，是指由一定质量的循环工质依序进行的七个过程——升压过程12，自循环工质吸热过程23，升压过程34，自高温热源吸热过程45，降压过程56，向循环工质放热过程67，向低温热源放热过程71——组成的闭合过程；其中，过程67的放热满足过程23的吸热。1. Regenerative thermodynamic cycle refers to seven processes carried out by a certain quality of circulating working fluid in sequence - the boosting process 12, the self-circulating working fluid endothermic process 23, the boosting process 34, the heat absorption process from a high temperature heat source Process 45, depressurization process 56, exothermic process 67 to the circulating working medium, exothermic process 71 to the low temperature heat source—a closed process composed; wherein, the exothermic process of process 67 meets the endothermic process of process 23.
2.回热式气体热动装置，主要由膨胀增速机、压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机有循环工质通道经回热器与低温热交换器连通，低温热交换器还有循环工质通道经扩压管和回热器与压缩机连通，压缩机还有循环工质通道经高温热交换器与膨胀增速机连通；高温热交换器还有热源介质通道与外部连通，低温热交换器还有冷却介质通道与外部连通，膨胀增速机连接压缩机并传输动力，形成回热式气体热动装置。2. The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator; the expansion speed-up machine has a circulating working medium channel through The regenerator is communicated with the low temperature heat exchanger, the low temperature heat exchanger and the circulating working fluid channel are communicated with the compressor through the diffuser pipe and the regenerator, and the compressor and the circulating working fluid channel are connected with the expansion speed through the high temperature heat exchanger. The high temperature heat exchanger and the heat source medium channel are connected to the outside, the low temperature heat exchanger and the cooling medium channel are connected to the outside, and the expansion speed up machine is connected to the compressor and transmits power to form a regenerative gas thermal device.
3.回热式气体热动装置，主要由膨胀增速机、双能压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机有循环工质通道经回热器与低温热交换器连通，低温热交换器还有循环工质通道经扩压管和回热器与双能压缩机连通，双能压缩机还有循环工质通道经高温热交换器与膨胀增速机连通；高温热交换器还有热源介质通道与外部连通，低温热交换器还有冷却介质通道与外部连通，膨胀增速机连接双能压缩机并传输动力，形成回热式气体热动装置。3. The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser tube, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion speed-up machine has a circulating working fluid The channel is communicated with the low temperature heat exchanger through the regenerator. The low temperature heat exchanger and the circulating working fluid channel are connected with the dual-energy compressor through the diffuser tube and the regenerator. The dual-energy compressor and the circulating working fluid channel are heated by the high temperature. The exchanger is communicated with the expansion and speed-up machine; the high-temperature heat exchanger and the heat source medium channel are communicated with the outside, the low-temperature heat exchanger and the cooling medium channel are communicated with the outside, and the expansion speed-up machine is connected to the dual-energy compressor and transmits power to form a return. Thermal gas thermodynamic device.
4.回热式气体热动装置，主要由膨胀增速机、扩压管、第二扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机有循环工质通道经回热器与低温热交换器连通，低温热交换器还有循环工质通道经扩压管和回热器与第二扩压管连通，第二扩压管还有循 环工质通道经高温热交换器与膨胀增速机连通；高温热交换器还有热源介质通道与外部连通，低温热交换器还有冷却介质通道与外部连通，形成回热式气体热动装置。4. The regenerative gas thermodynamic device is mainly composed of an expansion speed up machine, a diffuser tube, a second diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator; The mass channel is communicated with the low temperature heat exchanger through the regenerator, and the low temperature heat exchanger and the circulating working medium channel are communicated with the second diffuser tube through the diffuser tube and the regenerator, and the second diffuser tube also has a circulating working medium channel. The high temperature heat exchanger is connected with the expansion speed increaser through the high temperature heat exchanger; the high temperature heat exchanger also has a heat source medium channel connected with the outside, and the low temperature heat exchanger also has a cooling medium channel connected with the outside to form a regenerative gas thermodynamic device.
5.回热式气体热动装置，主要由膨胀机、压缩机、高温热交换器、低温热交换器和回热器所组成；膨胀机有循环工质通道经回热器与低温热交换器连通，低温热交换器还有循环工质通道与压缩机连通，压缩机还有循环工质通道经回热器与自身连通，压缩机还有循环工质通道经高温热交换器与膨胀机连通；高温热交换器还有热源介质通道与外部连通，低温热交换器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成回热式气体热动装置。5. The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander has a circulating working medium channel that passes through the regenerator and the low-temperature heat exchanger The low temperature heat exchanger and the circulating working medium channel are communicated with the compressor, the compressor and the circulating working medium channel are communicated with itself through the regenerator, and the compressor and the circulating working medium channel are communicated with the expander through the high temperature heat exchanger. The high-temperature heat exchanger also has a heat source medium channel that communicates with the outside, and the low-temperature heat exchanger has a cooling medium channel that communicates with the outside. The expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
6.回热式气体热动装置，主要由膨胀增速机、压缩机、扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机连通，膨胀增速机还有热源介质通道经回热器与低温热交换器连通，低温热交换器还有热源介质通道经扩压管和回热器与压缩机连通，压缩机还有热源介质通道与外部连通；低温热交换器还有冷却介质通道与外部连通，膨胀增速机连接压缩机并传输动力，形成回热式气体热动装置。6. The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expansion speed-up machine, and the expansion speed-up speed is increased. The compressor also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator, and the low-temperature heat exchanger also has a heat source medium channel that communicates with the compressor through the diffuser tube and the regenerator, and the compressor and the heat source medium channel communicate with the outside; The low-temperature heat exchanger also has a cooling medium channel that communicates with the outside, and the expansion and speed-up machine is connected to the compressor and transmits power to form a regenerative gas thermal device.
7.回热式气体热动装置，主要由膨胀增速机、双能压缩机、扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机连通，膨胀增速机还有热源介质通道经回热器与低温热交换器连通，低温热交换器还有热源介质通道经扩压管和回热器与双能压缩机连通，双能压缩机还有热源介质通道与外部连通；低温热交换器还有冷却介质通道与外部连通，膨胀增速机连接双能压缩机并传输动力，形成回热式气体热动装置。7. The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser tube, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected with the expansion speed-up machine, and the expansion The speed increaser also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator. The low-temperature heat exchanger also has a heat source medium channel that communicates with the dual-energy compressor through the diffuser tube and the regenerator. The dual-energy compressor also has a heat source. The medium channel is communicated with the outside; the low-temperature heat exchanger and the cooling medium channel are communicated with the outside, and the expansion and speed-up machine is connected to the dual-energy compressor and transmits power to form a regenerative gas thermal device.
8.回热式气体热动装置，主要由膨胀增速机、扩压管、第二扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机连通，膨胀增速机还有热源介质通道经回热器与低温热交换器连通，低温热交换器还有热源介质通道经扩压管和回热器与第二扩压管连通，第二扩压管还有热源介质通道与外部连通，低温热交换器还有冷却介质通道与外部连通，形成回热式气体热动装置。8. The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a diffuser tube, a second diffuser tube, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expansion speed-up machine. The expansion speed-up machine also has a heat source medium channel that communicates with the low-temperature heat exchanger through the regenerator, and the low-temperature heat exchanger also has a heat source medium channel that communicates with the second diffuser tube through the diffuser tube and the regenerator. The second diffuser tube There is also a heat source medium channel that communicates with the outside, and a low-temperature heat exchanger and a cooling medium channel that communicates with the outside to form a regenerative gas thermodynamic device.
9.回热式气体热动装置，主要由膨胀机、压缩机、低温热交换器和回热器所组成；外部有热源介质通道与膨胀机连通，膨胀机还有热源介质通道经回热器与低温热交换器连通，低温热交换器还有热源介质通道与压缩机连通，压缩机还有热源介质通道经回热器与自身连通，压缩机还有热源介质通道与外部连通；低温热交换器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成回热式气体热动装置。9. The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expander, and the expander and the heat source medium channel pass through the regenerator. It communicates with the low-temperature heat exchanger, the low-temperature heat exchanger and the heat source medium channel communicate with the compressor, the compressor and the heat source medium channel communicate with itself through the regenerator, and the compressor and the heat source medium channel communicate with the outside; the low-temperature heat exchange The compressor also has a cooling medium channel that communicates with the outside, and the expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
10.回热式气体热动装置，主要由膨胀机、压缩机、高温热交换器和回热器所组成；外部还有冷却介质通道与压缩机连通，压缩机还有冷却介质通道经回热器与自身连通，压缩机还有冷却介质通道经高温热交换器与膨胀机连通，膨胀机还有冷却介质通道经回热器与外部连通；高温热交换器还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成回热式气体热动装置。10. The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high temperature heat exchanger and a regenerator; there is also a cooling medium channel connected to the compressor outside, and the compressor and the cooling medium channel are reheated The compressor and the cooling medium channel communicate with the expander through the high temperature heat exchanger, the expander and the cooling medium channel communicate with the outside through the regenerator; the high temperature heat exchanger and the heat source medium channel communicate with the outside, The expander is connected to the compressor and transmits power to form a regenerative gas thermal device.
附图说明：Description of drawings:
图1/8是依据本发明所提供的回热式热力循环原则性流程示例图。FIG. 1/8 is an exemplary schematic flow chart of a regenerative thermodynamic cycle provided according to the present invention.
图2/8是依据本发明所提供的回热式气体热动装置第1种原则性热力系统图。Fig. 2/8 is a first principle thermodynamic system diagram of the regenerative gas thermodynamic device provided according to the present invention.
图3/8是依据本发明所提供的回热式气体热动装置第2种原则性热力系统图。Fig. 3/8 is the second principle thermodynamic system diagram of the regenerative gas thermodynamic device provided according to the present invention.
图4/8是依据本发明所提供的回热式气体热动装置第3种原则性热力系统图。4/8 are diagrams of the third principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
图5/8是依据本发明所提供的回热式气体热动装置第4种原则性热力系统图。5/8 are diagrams of the fourth principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
图6/8是依据本发明所提供的回热式气体热动装置第5种原则性热力系统图。6/8 are diagrams of the fifth principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
图7/8是依据本发明所提供的回热式气体热动装置第6种原则性热力系统图。7/8 are diagrams of the sixth principle thermodynamic system of the regenerative gas thermodynamic device provided according to the present invention.
图8/8是依据本发明所提供的回热式气体热动装置第7种原则性热力系统图。8/8 are the seventh principle thermodynamic system diagrams of the regenerative gas thermodynamic device provided according to the present invention.
图中，1-膨胀增速机，2-压缩机，3-扩压管，4-高温热交换器，5-低温热交换器，6-回热器，7-双能压缩机，8-第二扩压管，9-膨胀机。In the figure, 1-expansion speed increaser, 2-compressor, 3-diffuser pipe, 4-high temperature heat exchanger, 5-low temperature heat exchanger, 6-regenerator, 7-dual energy compressor, 8- Second diffuser, 9-expander.
具体实施方式：detailed description:
首先要说明的是，在结构和流程的表述上，非必要情况下不重复进行；对显而易见的流程不作表述。下面结合附图和实例来详细描述本发明。The first thing to note is that in the presentation of structure and process, it will not be repeated unless it is necessary; the obvious process will not be described. The present invention will be described in detail below with reference to the accompanying drawings and examples.
图1/8所示T-s图中的回热式热力循环示例是这样进行的：The example of a regenerative thermodynamic cycle in the T-s diagram shown in Fig. 1/8 proceeds like this:
(1)从循环过程上看：(1) From the perspective of the cycle process:
循环工质进行——绝热升压过程12，自循环工质吸热升温过程23，绝热升压过程34，自高温热源吸热升温过程45，绝热降压过程56，向循环工质放热降温过程67，向低温热源放热降温过程71——共7个过程。Circulating working fluid is carried out - adiabatic boosting process 12, self-circulating working fluid endothermic heating process 23, adiabatic boosting process 34, endothermic heating process 45 from high temperature heat source, adiabatic depressurization process 56, exothermic cooling to circulating working fluid Process 67, releasing heat to the low-temperature heat source and cooling process 71—a total of 7 processes.
(2)从能量转换上看：(2) From the perspective of energy conversion:
①吸热过程——循环工质进行23过程需要的热量，由67放热过程来满足——回热；循环工质进行45过程需要的热量，由高温热源提供。① Endothermic process - the heat required for the circulating working medium to carry out the 23 process is met by the 67 exothermic process - recuperation; the heat required for the circulating working medium to carry out the 45 process is provided by a high temperature heat source.
②放热过程——循环工质进行67过程的放热，用于满足23过程的吸热需求；循环工质进行71过程的放热，向低温热源释放。②The exothermic process - the exothermic process of the circulating working fluid is used to meet the endothermic requirements of the 23 process; the circulating working fluid is exothermic in the 71 process and released to the low temperature heat source.
③能量转换过程——循环工质的升压过程12和升压过程34，一般由压缩机或双能压缩机或扩压管来完成；循环工质的降压膨胀过程56，一般由膨胀机或膨胀增速机来完成；膨胀释放机械能大于升压消耗机械能，循环净功对外输出，形成回热式热力循环。③ Energy conversion process - the boosting process 12 and the boosting process 34 of the circulating working fluid are generally completed by a compressor or a dual-energy compressor or a diffuser; the depressurizing and expanding process 56 of the circulating working fluid is generally performed by an expander Or expansion speed up machine to complete; the mechanical energy released by expansion is greater than the mechanical energy consumed by boosting, and the net work of the cycle is output to the outside, forming a regenerative thermodynamic cycle.
图2/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Figure 2/8 is implemented as follows:
(1)结构上，它主要由膨胀增速机、压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机1有循环工质通道经回热器6与低温热交换器5连通，低温热交换器5还有循环工质通道经扩压管3和回热器6与压缩机2连通，压缩机2还有循环工质通道经高温热交换器4与膨胀增速机1连通；高温热交换器4还有热源介质通道与外部连通，低温热交换器5还有冷却介质通道与外部连通，膨胀增速机1连接压缩机2并传输动力。(1) Structurally, it is mainly composed of an expansion speed-up machine, a compressor, a diffuser tube, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; The compressor 6 is communicated with the low-temperature heat exchanger 5, and the low-temperature heat exchanger 5 and the circulating working fluid channel are communicated with the compressor 2 through the diffuser tube 3 and the regenerator 6, and the compressor 2 and the circulating working fluid channel are subjected to high-temperature heat exchange. The high-temperature heat exchanger 4 also has a heat source medium channel that communicates with the outside, and the low-temperature heat exchanger 5 also has a cooling medium channel that communicates with the outside. The expansion and speed-up machine 1 is connected to the compressor 2 and transmits power. .
(2)流程上，膨胀增速机1排放的循环工质流经回热器6放热降温，流经低温热交换器5放热降温，流经扩压管3降速升压，流经回热器6吸热升温，流经压缩机2升压升温，流经高温热交换器4吸热升温，之后进入膨胀增速机1降压作功并增速；热源介质通过高温热交换器4提供高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀增速机1输出的功提供给压缩机2和外部作动力，形成回热式气体热动装置。(2) In the process, the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the The regenerator 6 absorbs heat to heat up, flows through the compressor 2 to increase the pressure, and flows through the high-temperature heat exchanger 4 to absorb heat and heat up, and then enters the expansion speed-up machine 1 to depressurize and increase the speed; the heat source medium passes through the high-temperature heat exchanger. 4. Provide high-temperature heat load, the cooling medium takes away the low-temperature heat load through the low-temperature heat exchanger 5, and the work output by the expansion speed up machine 1 is provided to the compressor 2 and the external power to form a regenerative gas thermal device.
图3/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Figure 3/8 is implemented as follows:
(1)结构上，它主要由膨胀增速机、双能压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机1有循环工质通道经回热器6与低温热交换器5连通，低温热交换器5还有循环工质通道经扩压管3和回热器6与双能压缩机7连通，双能压缩机7 还有循环工质通道经高温热交换器4与膨胀增速机1连通；高温热交换器4还有热源介质通道与外部连通，低温热交换器5还有冷却介质通道与外部连通，膨胀增速机1连接双能压缩机7并传输动力。(1) Structurally, it is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion speed-up machine 1 has a circulating working medium channel through The regenerator 6 is communicated with the low-temperature heat exchanger 5, and the low-temperature heat exchanger 5 also has a circulating working medium channel, which is communicated with the dual-energy compressor 7 through the diffuser pipe 3 and the regenerator 6, and the dual-energy compressor 7 also has a circulating working medium. The mass channel communicates with the expansion speed-up machine 1 through the high-temperature heat exchanger 4; the high-temperature heat exchanger 4 also has a heat source medium channel to communicate with the outside, the low-temperature heat exchanger 5 also has a cooling medium channel to communicate with the outside, and the expansion speed-up machine 1 is connected. Dual energy compressor 7 and transmit power.
(2)流程上，膨胀增速机1排放的循环工质流经回热器6放热降温，流经低温热交换器5放热降温，流经扩压管3降速升压，流经回热器6吸热升温，流经双能压缩机7升压升温并降速，流经高温热交换器4吸热升温，之后进入膨胀增速机1降压作功并增速；热源介质通过高温热交换器4提供高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀增速机1输出的功提供给双能压缩机7和外部作动力，形成回热式气体热动装置。(2) In the process, the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the The regenerator 6 absorbs heat to heat up, flows through the dual-energy compressor 7 to increase the pressure and heat up and decelerates, flows through the high-temperature heat exchanger 4 to absorb heat to heat up, and then enters the expansion speed increaser 1 to decompress and increase the speed; the heat source medium The high-temperature heat load is provided by the high-temperature heat exchanger 4, the low-temperature heat load is taken away by the cooling medium through the low-temperature heat exchanger 5, and the work output by the expansion speed up machine 1 is provided to the dual-energy compressor 7 and the external power to form a regenerative gas Thermal device.
图4/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Figure 4/8 is implemented as follows:
(1)结构上，它主要由膨胀增速机、扩压管、第二扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机1有循环工质通道经回热器6与低温热交换器5连通，低温热交换器5还有循环工质通道经扩压管3和回热器6与第二扩压管8连通，第二扩压管8还有循环工质通道经高温热交换器4与膨胀增速机1连通；高温热交换器4还有热源介质通道与外部连通，低温热交换器5还有冷却介质通道与外部连通。(1) Structurally, it is mainly composed of an expansion speed up machine, a diffuser tube, a second diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator; the expansion speed up machine 1 has a circulating working medium channel It is communicated with the low temperature heat exchanger 5 through the regenerator 6, and the low temperature heat exchanger 5 and the circulating working medium channel are communicated with the second diffuser tube 8 through the diffuser tube 3 and the regenerator 6, and the second diffuser tube 8 is also connected. A circulating working medium channel communicates with the expansion speed up machine 1 through a high temperature heat exchanger 4; the high temperature heat exchanger 4 also has a heat source medium channel communicated with the outside, and the low temperature heat exchanger 5 also has a cooling medium channel communicated with the outside.
(2)流程上，膨胀增速机1排放的循环工质流经回热器6放热降温，流经低温热交换器5放热降温，流经扩压管3降速升压，流经回热器6吸热升温，流经第二扩压管8降速升压，流经高温热交换器4吸热升温，之后进入膨胀增速机1降压作功并增速；热源介质通过高温热交换器4提供高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀增速机1输出的功提供给外部作动力，形成回热式气体热动装置。(2) In the process, the circulating working medium discharged from the expansion speed up machine 1 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, flows through the diffuser pipe 3 to decelerate and increase the pressure, and flows through the The regenerator 6 absorbs heat and increases the temperature, flows through the second diffuser 8 to decelerate and increase the pressure, and flows through the high-temperature heat exchanger 4 to absorb heat and increase the temperature, and then enters the expansion speed increaser 1 to decompress and increase the speed; the heat source medium passes through The high temperature heat exchanger 4 provides the high temperature heat load, the cooling medium takes away the low temperature heat load through the low temperature heat exchanger 5, and the work output by the expansion speed increaser 1 is provided to the external power to form a regenerative gas thermal power device.
图5/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Figure 5/8 is implemented as follows:
(1)结构上，它主要由膨胀机、压缩机、高温热交换器、低温热交换器和回热器所组成；膨胀机9有循环工质通道经回热器6与低温热交换器5连通，低温热交换器5还有循环工质通道与压缩机2连通，压缩机2还有循环工质通道经回热器6与自身连通，压缩机2还有循环工质通道经高温热交换器4与膨胀机9连通；高温热交换器4还有热源介质通道与外部连通，低温热交换器5还有冷却介质通道与外部连通，膨胀机9连接压缩机2并传输动力。(1) Structurally, it is mainly composed of an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander 9 has a circulating working medium channel through the regenerator 6 and the low-temperature heat exchanger 5 Connected, the low temperature heat exchanger 5 also has a circulating working medium channel that communicates with the compressor 2, the compressor 2 also has a circulating working medium channel that communicates with itself through the regenerator 6, and the compressor 2 also has a circulating working medium channel through high temperature heat exchange. The heat exchanger 4 communicates with the expander 9; the high temperature heat exchanger 4 also has a heat source medium channel to communicate with the outside, the low temperature heat exchanger 5 also has a cooling medium channel to communicate with the outside, and the expander 9 is connected to the compressor 2 and transmits power.
(2)流程上，膨胀机9排放的循环工质流经回热器6放热降温，流经低温热交换器5放热降温，进入压缩机2升压升温至一定程度之后流经回热器6吸热升温，之后进入压缩机2继续升压升温；压缩机2排放的循环工质流经高温热交换器4吸热升温，之后进入膨胀机9降压作功；热源介质通过高温热交换器4提供高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀机9输出的功提供给压缩机2和外部作动力，形成回热式气体热动装置。(2) In the flow process, the circulating working medium discharged from the expander 9 flows through the regenerator 6 to release heat and cool down, flows through the low-temperature heat exchanger 5 to release heat and cool down, and enters the compressor 2 to increase the pressure and heat up to a certain degree and then flows through the recuperation. The compressor 6 absorbs heat and heats up, and then enters the compressor 2 to continue to increase the pressure and heat up; the circulating working medium discharged from the compressor 2 flows through the high-temperature heat exchanger 4 to absorb heat and heat up, and then enters the expander 9 to depressurize and perform work; the heat source medium passes through the high-temperature heat. The heat exchanger 4 provides high temperature heat load, the cooling medium takes away the low temperature heat load through the low temperature heat exchanger 5, and the work output by the expander 9 is provided to the compressor 2 and the external power to form a regenerative gas thermodynamic device.
图6/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Fig. 6/8 is realized as follows:
(1)结构上，它主要由膨胀增速机、双能压缩机、扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机1连通，膨胀增速机1还有热源介质通道经回热器6与低温热交换器5连通，低温热交换器5还有热源介质通道经扩压管3和回热器6与双能压缩机7连通，双能压缩机7还有热源介质通道与外部连通；低温热交换器5还有冷却介质通道与外部连通，膨胀增速机1连接双能压缩机7并传输动力。(1) Structurally, it is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser tube, a low-temperature heat exchanger and a regenerator; the external heat source medium channel is connected to the expansion speed-up machine 1, and the expansion speed-up speed The engine 1 also has a heat source medium channel that communicates with the low-temperature heat exchanger 5 through the regenerator 6, and the low-temperature heat exchanger 5 also has a heat source medium channel that communicates with the dual-energy compressor 7 through the diffuser tube 3 and the regenerator 6. The compressor 7 also has a heat source medium channel that communicates with the outside; the low-temperature heat exchanger 5 also has a cooling medium channel that communicates with the outside, and the expansion speed-up machine 1 is connected to the dual-energy compressor 7 and transmits power.
(2)流程上，外部热源介质流经膨胀机1降压作功并增速，流经回热器6和低温热交换器5逐步放热并降温，流经扩压管3降速升压，流经回热器6吸热升温，流经双能压缩机7升压升温并降速，之后对外排放；热源介质通过进出流程提供高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀增速机1输出的功提供给双能压缩机7和外部作动力，形成回热式气体热动装置。(2) In the process, the external heat source medium flows through the expander 1 to depressurize and increase the speed, and flows through the regenerator 6 and the low-temperature heat exchanger 5 to gradually release heat and cool down, and flows through the diffuser 3 to reduce the speed and increase the pressure. , flows through the regenerator 6 to absorb heat and raise the temperature, and flows through the dual-energy compressor 7 to raise the pressure and raise the temperature and reduce the speed, and then discharge to the outside; The heat load, the work output by the expansion and speed up machine 1 is provided to the dual-energy compressor 7 and the external power to form a regenerative gas thermal power device.
图7/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Fig. 7/8 is realized as follows:
(1)结构上，它主要由膨胀机、压缩机、低温热交换器和回热器所组成；外部有热源介质通道与膨胀机9连通，膨胀机9还有热源介质通道经回热器6与低温热交换器5连通，低温热交换器5还有热源介质通道与压缩机2连通，压缩机2还有热源介质通道经回热器6与自身连通，压缩机2还有热源介质通道与外部连通；低温热交换器5还有冷却介质通道与外部连通，膨胀机9连接压缩机2并传输动力。(1) Structurally, it is mainly composed of an expander, a compressor, a low-temperature heat exchanger and a regenerator; an external heat source medium channel communicates with the expander 9, and the expander 9 and a heat source medium channel pass through the regenerator 6 Connected with the low temperature heat exchanger 5, the low temperature heat exchanger 5 also has a heat source medium channel that communicates with the compressor 2, the compressor 2 also has a heat source medium channel that communicates with itself through the regenerator 6, and the compressor 2 also has a heat source medium channel. External communication; the low temperature heat exchanger 5 also has a cooling medium channel to communicate with the outside, and the expander 9 is connected to the compressor 2 and transmits power.
(2)流程上，外部热源介质流经膨胀机1降压作功，流经回热器6和低温热交换器5逐步放热并降温，进入压缩机2升压升温至一定程度之后流经回热器6吸热升温，之后进入压缩机2继续升压升温并对外排放；热源介质通过进出流程高温热负荷，冷却介质通过低温热交换器5带走低温热负荷，膨胀机9输出的功提供给压缩机2和外部作动力，形成回热式气体热动装置。(2) In the process, the external heat source medium flows through the expander 1 to decompress and perform work, flows through the regenerator 6 and the low-temperature heat exchanger 5 to gradually release heat and cool down, and then enters the compressor 2 to increase the pressure and heat up to a certain degree and then flows through the The regenerator 6 absorbs heat and heats up, and then enters the compressor 2 to continue to increase the pressure and heat up and discharge it to the outside; Provide power to the compressor 2 and the outside to form a regenerative gas thermal device.
图8/8所示的回热式气体热动装置是这样实现的：The regenerative gas thermodynamic device shown in Fig. 8/8 is realized as follows:
(1)结构上，它主要由膨胀机、压缩机、高温热交换器和回热器所组成；外部还有冷却介质通道与压缩机2连通，压缩机2还有冷却介质通道经回热器6与自身连通，压缩机2还有冷却介质通道经高温热交换器4与膨胀机9连通，膨胀机9还有冷却介质通道经回热器6与外部连通；高温热交换器4还有热源介质通道与外部连通，膨胀机9连接压缩机2并传输动力。(1) Structurally, it is mainly composed of an expander, a compressor, a high-temperature heat exchanger and a regenerator; there is also a cooling medium channel on the outside that communicates with the compressor 2, and the compressor 2 also has a cooling medium channel through the regenerator. 6 communicates with itself, the compressor 2 also has a cooling medium channel that communicates with the expander 9 through the high-temperature heat exchanger 4, and the expander 9 also has a cooling medium channel that communicates with the outside through the regenerator 6; the high-temperature heat exchanger 4 also has a heat source. The medium channel communicates with the outside, and the expander 9 is connected to the compressor 2 and transmits power.
(2)流程上，外部冷却介质进入压缩机2升压升温至一定程度之后流经回热器6吸热升温，之后进入压缩机2继续升压升温；压缩机2排放的冷却介质流经高温热交换器4吸热升温，流经膨胀机9降压作功，流经回热器6放热降温，之后对外排放；热源介质通过高温热交换器4提供高温热负荷，冷却介质通过进出流程带走低温热负荷，膨胀机9输出的功提供给压缩机2和外部作动力，形成回热式气体热动装置。(2) In the process, the external cooling medium enters the compressor 2 to increase the pressure and heat up to a certain degree, and then flows through the regenerator 6 to absorb heat and heat up, and then enters the compressor 2 to continue to increase the pressure and heat up; the cooling medium discharged from the compressor 2 flows through the high temperature The heat exchanger 4 absorbs heat to increase temperature, flows through the expander 9 to depressurize, and then flows through the regenerator 6 to release heat and cool down, and then discharge to the outside; Taking away the low temperature heat load, the work output by the expander 9 is provided to the compressor 2 and the external power to form a regenerative gas thermal device.
本发明技术可以实现的效果——本发明所提出的回热式热力循环与回热式气体热动装置，具有如下效果和优势：The effect that the technology of the present invention can achieve - the regenerative thermodynamic cycle and the regenerative gas thermodynamic device proposed by the present invention have the following effects and advantages:
(1)回热式热力循环，符合热力学原理；回热参数(如压力)灵活，回热幅度可调节。(1) The regenerative thermodynamic cycle is in line with the thermodynamic principle; the regenerative parameters (such as pressure) are flexible, and the regenerative amplitude can be adjusted.
(2)回热式热力循环，不同温差对应合适的回热幅度，保持合理的热效率。(2) Regenerative thermodynamic cycle, different temperature differences correspond to appropriate recuperation amplitudes to maintain reasonable thermal efficiency.
(3)回热式热力循环，有效降低循环压缩比，为提高循环工质流量和选用大流量压气机提供基本工作原理。(3) The regenerative thermodynamic cycle can effectively reduce the cycle compression ratio, and provide the basic working principle for improving the circulating working medium flow and selecting a large-flow compressor.
(4)回热式气体热动装置，提供多种技术方案，实现能源合理利用。(4) The regenerative gas thermal device provides a variety of technical solutions to realize the rational utilization of energy.
(5)回热式气体热动装置，技术措施简单合理，有利于扩展气体热动装置的应用范围。(5) The regenerative gas thermodynamic device has simple and reasonable technical measures, which is beneficial to expand the application range of the gas thermodynamic device.

Claims (10)

  1. 回热式热力循环，是指由一定质量的循环工质依序进行的七个过程——升压过程12，自循环工质吸热过程23，升压过程34，自高温热源吸热过程45，降压过程56，向循环工质放热过程67，向低温热源放热过程71——组成的闭合过程；其中，过程67的放热满足过程23的吸热。The regenerative thermodynamic cycle refers to seven processes carried out in sequence by a certain quality of circulating working fluid - the boosting process 12, the self-circulating working fluid endothermic process 23, the boosting process 34, and the high-temperature heat source endothermic process 45 , the depressurization process 56 , the exothermic process 67 to the circulating working medium, the exothermic process 71 to the low-temperature heat source—the closed process of the composition; wherein, the exothermic process of the process 67 meets the endothermic process of the process 23 .
  2. 回热式气体热动装置，主要由膨胀增速机、压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机(1)有循环工质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有循环工质通道经扩压管(3)和回热器(6)与压缩机(2)连通，压缩机(2)还有循环工质通道经高温热交换器(4)与膨胀增速机(1)连通；高温热交换器(4)还有热源介质通道与外部连通，低温热交换器(5)还有冷却介质通道与外部连通，膨胀增速机(1)连接压缩机(2)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser tube, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion speed-up machine (1) has a circulating working medium channel The regenerator (6) is communicated with the low temperature heat exchanger (5), and the low temperature heat exchanger (5) also has a circulating working medium channel through the diffuser tube (3) and the regenerator (6) and the compressor (2) The compressor (2) and the circulating working medium channel are communicated with the expansion speed up machine (1) through the high temperature heat exchanger (4); the high temperature heat exchanger (4) and the heat source medium channel are communicated with the outside, and the low temperature heat exchange The device (5) also has a cooling medium channel to communicate with the outside, and the expansion and speed-up machine (1) is connected to the compressor (2) and transmits power to form a regenerative gas thermal device.
  3. 回热式气体热动装置，主要由膨胀增速机、双能压缩机、扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机(1)有循环工质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有循环工质通道经扩压管(3)和回热器(6)与双能压缩机(7)连通，双能压缩机(7)还有循环工质通道经高温热交换器(4)与膨胀增速机(1)连通；高温热交换器(4)还有热源介质通道与外部连通，低温热交换器(5)还有冷却介质通道与外部连通，膨胀增速机(1)连接双能压缩机(7)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expansion speed-up machine (1) has a circulating The mass channel is communicated with the low-temperature heat exchanger (5) through the regenerator (6), and the low-temperature heat exchanger (5) and the circulating working medium channel are connected with the dual-energy compression through the diffuser tube (3) and the regenerator (6). The compressor (7) is connected, and the dual-energy compressor (7) and the circulating working medium channel are connected to the expansion speed-up machine (1) through the high temperature heat exchanger (4); the high temperature heat exchanger (4) also has a heat source medium channel and The low temperature heat exchanger (5) and the cooling medium channel are communicated with the outside, and the expansion and speed up machine (1) is connected to the dual-energy compressor (7) and transmits power to form a regenerative gas thermodynamic device.
  4. 回热式气体热动装置，主要由膨胀增速机、扩压管、第二扩压管、高温热交换器、低温热交换器和回热器所组成；膨胀增速机(1)有循环工质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有循环工质通道经扩压管(3)和回热器(6)与第二扩压管(8)连通，第二扩压管(8)还有循环工质通道经高温热交换器(4)与膨胀增速机(1)连通；高温热交换器(4)还有热源介质通道与外部连通，低温热交换器(5)还有冷却介质通道与外部连通，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed increaser, a diffuser tube, a second diffuser tube, a high temperature heat exchanger, a low temperature heat exchanger and a regenerator; the expansion speed increaser (1) has a circulation The working medium channel is communicated with the low temperature heat exchanger (5) through the regenerator (6), and the low temperature heat exchanger (5) and the circulating working medium channel are connected to the second through the diffuser tube (3) and the regenerator (6). The diffuser pipe (8) is communicated, and the second diffuser pipe (8) and the circulating working medium channel are communicated with the expansion speed-up machine (1) through the high-temperature heat exchanger (4); the high-temperature heat exchanger (4) also has a heat source The medium channel is communicated with the outside, and the low-temperature heat exchanger (5) and the cooling medium channel are communicated with the outside to form a regenerative gas thermodynamic device.
  5. 回热式气体热动装置，主要由膨胀机、压缩机、高温热交换器、低温热交换器和回热器所组成；膨胀机(9)有循环工质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有循环工质通道与压缩机(2)连通，压缩机(2)还有循环工质通道经回热器(6)与自身连通，压缩机(2)还有循环工质通道经高温热交换器(4)与膨胀机(9)连通；高温热交换器(4)还有热源介质通道与外部连通，低温热交换器(5)还有冷却介质通道与外部连通，膨胀机(9)连接压缩机(2)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high-temperature heat exchanger, a low-temperature heat exchanger and a regenerator; the expander (9) has a circulating working medium channel through the regenerator (6) and The low temperature heat exchanger (5) communicates with the compressor (2), and the low temperature heat exchanger (5) and the circulating working medium channel communicate with the compressor (2) through the regenerator (6). The compressor (2) and the circulating working medium channel are communicated with the expander (9) through the high temperature heat exchanger (4); the high temperature heat exchanger (4) and the heat source medium channel are communicated with the outside, and the low temperature heat exchanger ( 5) There is also a cooling medium channel that communicates with the outside, and the expander (9) is connected to the compressor (2) and transmits power to form a regenerative gas thermal device.
  6. 回热式气体热动装置，主要由膨胀增速机、压缩机、扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机(1)连通，膨胀增速机(1)还有热源介质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有热源介质通道经扩压管(3)和回热器(6)与压缩机(2)连通，压缩机(2)还有热源介质通道与外部连通；低温热交换器(5)还有冷却介质通道与外部连通，膨胀增速机(1)连接压缩机(2)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a compressor, a diffuser tube, a low-temperature heat exchanger and a regenerator; an external heat source medium channel is connected with the expansion speed-up machine (1), and the expansion speed-up machine (1) is connected. The speed machine (1) also has a heat source medium channel connected to the low temperature heat exchanger (5) through the regenerator (6), and the low temperature heat exchanger (5) also has a heat source medium channel through the diffuser tube (3) and the regenerator. (6) communicates with the compressor (2), the compressor (2) also has a heat source medium passage that communicates with the outside; (2) and transmit power to form a regenerative gas thermal device.
  7. 回热式气体热动装置，主要由膨胀增速机、双能压缩机、扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机(1)连通，膨胀增速机(1)还有热源介质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有热源介质通道 经扩压管(3)和回热器(6)与双能压缩机(7)连通，双能压缩机(7)还有热源介质通道与外部连通；低温热交换器(5)还有冷却介质通道与外部连通，膨胀增速机(1)连接双能压缩机(7)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a dual-energy compressor, a diffuser, a low-temperature heat exchanger and a regenerator; an external heat source medium channel is connected to the expansion speed-up machine (1), The expansion speed-up machine (1) and the heat source medium channel are connected to the low temperature heat exchanger (5) through the regenerator (6), and the low temperature heat exchanger (5) also has the heat source medium channel through the diffuser pipe (3) and the return heat exchanger (5). The heat exchanger (6) is communicated with the dual-energy compressor (7), and the dual-energy compressor (7) also has a heat source medium channel communicated with the outside; the low-temperature heat exchanger (5) also has a cooling medium channel communicated with the outside, and the expansion speed is increased The machine (1) is connected to the dual-energy compressor (7) and transmits power to form a regenerative gas thermal device.
  8. 回热式气体热动装置，主要由膨胀增速机、扩压管、第二扩压管、低温热交换器和回热器所组成；外部有热源介质通道与膨胀增速机(1)连通，膨胀增速机(1)还有热源介质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有热源介质通道经扩压管(3)和回热器(6)与第二扩压管(8)连通，第二扩压管(8)还有热源介质通道与外部连通，低温热交换器(5)还有冷却介质通道与外部连通，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expansion speed-up machine, a diffuser tube, a second diffuser tube, a low-temperature heat exchanger and a regenerator; an external heat source medium channel is connected to the expansion speed-up machine (1). , the expansion speed up machine (1) and the heat source medium channel are communicated with the low temperature heat exchanger (5) through the regenerator (6), and the low temperature heat exchanger (5) also has the heat source medium channel through the diffuser pipe (3) and the low temperature heat exchanger (5). The regenerator (6) is communicated with the second diffuser pipe (8), the second diffuser pipe (8) also has a heat source medium channel communicated with the outside, and the low temperature heat exchanger (5) also has a cooling medium channel communicated with the outside, A regenerative gas thermodynamic device is formed.
  9. 回热式气体热动装置，主要由膨胀机、压缩机、低温热交换器和回热器所组成；外部有热源介质通道与膨胀机(9)连通，膨胀机(9)还有热源介质通道经回热器(6)与低温热交换器(5)连通，低温热交换器(5)还有热源介质通道与压缩机(2)连通，压缩机(2)还有热源介质通道经回热器(6)与自身连通，压缩机(2)还有热源介质通道与外部连通；低温热交换器(5)还有冷却介质通道与外部连通，膨胀机(9)连接压缩机(2)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a low-temperature heat exchanger and a regenerator; an external heat source medium channel communicates with the expander (9), and the expander (9) also has a heat source medium channel The regenerator (6) is communicated with the low temperature heat exchanger (5), the low temperature heat exchanger (5) and the heat source medium channel are communicated with the compressor (2), and the compressor (2) and the heat source medium channel are reheated The compressor (6) communicates with itself, the compressor (2) also has a heat source medium channel that communicates with the outside; the low-temperature heat exchanger (5) also has a cooling medium channel that communicates with the outside, and the expander (9) is connected to the compressor (2) and communicates with the outside. The power is transmitted to form a regenerative gas thermodynamic device.
  10. 回热式气体热动装置，主要由膨胀机、压缩机、高温热交换器和回热器所组成；外部还有冷却介质通道与压缩机(2)连通，压缩机(2)还有冷却介质通道经回热器(6)与自身连通，压缩机(2)还有冷却介质通道经高温热交换器(4)与膨胀机(9)连通，膨胀机(9)还有冷却介质通道经回热器(6)与外部连通；高温热交换器(4)还有热源介质通道与外部连通，膨胀机(9)连接压缩机(2)并传输动力，形成回热式气体热动装置。The regenerative gas thermodynamic device is mainly composed of an expander, a compressor, a high-temperature heat exchanger and a regenerator; there is also a cooling medium channel connected to the compressor (2) outside, and the compressor (2) also has a cooling medium The channel is communicated with itself through the regenerator (6), the compressor (2) and the cooling medium channel are communicated with the expander (9) through the high temperature heat exchanger (4), and the expander (9) and the cooling medium channel are connected through the return channel. The heat exchanger (6) communicates with the outside; the high temperature heat exchanger (4) and the heat source medium channel communicate with the outside, and the expander (9) is connected to the compressor (2) and transmits power to form a regenerative gas thermodynamic device.
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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
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