CN117108397A - Fuel carrying same-heating type thermal cycle device - Google Patents

Fuel carrying same-heating type thermal cycle device Download PDF

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Publication number
CN117108397A
CN117108397A CN202311094037.0A CN202311094037A CN117108397A CN 117108397 A CN117108397 A CN 117108397A CN 202311094037 A CN202311094037 A CN 202311094037A CN 117108397 A CN117108397 A CN 117108397A
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China
Prior art keywords
communicated
regenerator
heating furnace
fuel
compressor
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CN202311094037.0A
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Chinese (zh)
Inventor
李鸿瑞
李华玉
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Individual
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Individual
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Publication of CN117108397A publication Critical patent/CN117108397A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • 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
    • 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
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Air Supply (AREA)

Abstract

The invention provides a fuel carrying and concurrent regenerative thermal cycle device, and belongs to the technical field of thermodynamics and thermal technology. The external part is provided with a low-grade fuel channel communicated with a heating furnace, the external part is also provided with an air channel communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel communicated with the external part through a heat source regenerator, the external part is also provided with a high-grade fuel channel communicated with a second heating furnace, the external part is also provided with an air channel communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel communicated with the external part through a second heat source regenerator, the compressor is also provided with a first circulating working medium channel communicated with a cooler through a regenerator and a low-temperature expansion machine, the compressor is also provided with a second circulating working medium channel communicated with a cooler through the heating furnace, the second heating furnace, a high-temperature expansion machine and the regenerator, and the cooler is also provided with a circulating working medium channel communicated with a compressor; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.

Description

Fuel carrying same-heating type thermal cycle device
Technical field:
the invention belongs to the technical field of thermodynamics and thermal dynamics.
The background technology is as follows:
the fuel has different types and different properties, and the temperature of fuel gas formed by the combustion of the fuel directly determines the heat-changing work efficiency; limited by one or more factors such as working principle, working medium property, material property, equipment and other parts manufacturing level, in a thermodynamic device adopting high-grade fuel, larger temperature difference irreversible loss exists in the combustion process; analysis after extensive discovery provides opportunities for high value power utilization of low grade fuels.
The gas power device adopting the brayton cycle as the working principle or the gas-steam combined cycle power device is a main means for converting high-temperature heat load formed by fuel combustion into power. In order to improve the power application value of high-temperature heat load, the average temperature of the heat absorption process of the circulating working medium is improved as much as possible, and the temperature and the quantity of the heat emission load of the aerodynamic device are reduced. In the prior art, when the temperature formed by the high-temperature heat load obtained by the circulating working medium is higher, the temperature of the circulating working medium discharged by the expander is also increased, so that the difficulty of reducing the heat load discharged by adopting the traditional heat regeneration technology is also increased. The increase in the temperature and the increase in the number of the exhaust heat loads affect the maximization of the heat-altered work efficiency, both for the aerodynamic power cycle device itself and for the following rankine cycle power device.
The invention provides a fuel carrying and regenerative thermal cycle device which uses low-grade fuel and high-grade fuel in a matching way, has the advantages of high thermal efficiency, strong safety, simple structure and the like, greatly improves the thermal work efficiency of the low-grade fuel and effectively reduces the manufacturing cost of the device.
The invention comprises the following steps:
the invention mainly aims to provide a fuel carrying and concurrent regenerative thermal cycle device, and the specific invention is described in the following items:
1. the fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler, the compressor is also provided with a circulating working medium channel which is communicated with the cooler through the heating furnace and the second heating furnace; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
2. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler after the compressor is also provided with a second circulating working medium channel which is communicated with the high-temperature expansion machine through the heating furnace and the second heating furnace, and the cooler is also provided with a circulating working medium channel which is communicated with the compressor; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
3. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler, and the compressor is also provided with a circulating working medium channel which is communicated with the compressor through a second regenerator, the heating furnace and the second heating furnace; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
4. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with the heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler, and the compressor is also provided with a circulating working medium channel which is communicated with the compressor after the high-temperature expansion machine is also provided with the circulating working medium channel which is communicated with the cooler through the second regenerator and the regenerator; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
5. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler through the heating furnace and the second heating furnace, and the high-temperature expansion machine is also provided with a circulating working medium channel which is communicated with the compressor through the second regenerator and the regenerator; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
6. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace, the outside is also provided with an air channel which is communicated with the heating furnace through a heat source regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the outside through a heat source regenerator, the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace, the outside is also provided with an air channel which is communicated with the second heating furnace through a second heat source regenerator, the second heating furnace is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator, the compressor is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine through a regenerator, the low-temperature expansion machine is also provided with a circulating working medium channel which is communicated with a cooler through a second regenerator, the compressor is also provided with a circulating working medium channel which is communicated with the compressor after the compressor is communicated with the compressor through the second regenerator, and the high-temperature expansion machine is also provided with a circulating working medium channel which is communicated with the cooler through the second regenerator; the cooler is also provided with a cooling medium channel which is communicated with the outside, and the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power to form the fuel carrying and regenerative thermal cycle device.
7. The fuel-carrying and concurrent regenerative thermal cycle device is formed by adjusting the second circulating working medium channel of the compressor to be communicated with the high-temperature expansion machine through the heating furnace and the second heating furnace in the fuel-carrying and concurrent regenerative thermal cycle device of any one of the 1-2 and 5-6 items, adjusting the second circulating working medium channel of the compressor to be communicated with the high-temperature expansion machine through the second heating furnace, adjusting the air channel outside to be communicated with the second heating furnace through the second heat source regenerator and the heating furnace, and forming the fuel-carrying and concurrent regenerative thermal cycle device.
8. In the fuel-carrying and simultaneous regenerative thermal cycle device in the 3 rd or 4 th aspect, the compressor is provided with a second circulating working medium channel which is communicated with the high-temperature expansion machine through the second heat regenerator, the heating furnace and the second heating furnace, so that the compressor is provided with the second circulating working medium channel which is communicated with the high-temperature expansion machine through the second heat regenerator and the second heating furnace, and the outside air channel which is communicated with the second heating furnace through the second heat source heat regenerator is adjusted into the outside air channel which is communicated with the second heating furnace through the second heat source heat regenerator and the heating furnace, thereby forming the fuel-carrying and simultaneous regenerative thermal cycle device.
9. The fuel-carrying and simultaneous regenerative thermal cycle device is formed by adding a dual-energy compressor to replace the compressor, adding a low-temperature expansion speed increaser to replace the low-temperature expansion machine, adding a high-temperature expansion speed increaser to replace the high-temperature expansion machine in any one of the fuel-carrying and simultaneous regenerative thermal cycle devices of 1-8.
10. The fuel-carrying and simultaneous regenerative thermal cycle device is formed by adding a dual-energy compressor to replace a compressor, adding a spray pipe to replace a low-temperature expander, adding a high-temperature expansion speed increaser to replace a high-temperature expander in any one of the fuel-carrying and simultaneous regenerative thermal cycle devices of 1-8.
11. The fuel-carrying and concurrent regenerative thermal cycle device is formed by eliminating a cooler and a cooling medium channel communicated with the outside in any one of the fuel-carrying and concurrent regenerative thermal cycle devices in the 1 st, the 3 rd, the 5 th and the 6 th, adjusting the communication of the cooler with a circulating medium channel and the compressor to the communication of the cooler with the compressor to the communication of the outside with the cooling medium channel, adjusting the communication of the low-temperature expander with the circulating medium channel and the cooler to the communication of the low-temperature expander with the cooling medium channel and the outside, and adjusting the communication of the regenerator with the circulating medium channel and the cooler to the communication of the regenerator with the cooling medium channel and the outside.
12. The fuel-carrying and regenerative thermal cycle device according to claim 2 or 4 is formed by eliminating the cooler and the cooling medium passage communicated with the outside, adjusting the communication between the cooler and the circulation medium passage and the compressor to the communication between the outside and the cooling medium passage, adjusting the communication between the low-temperature expander and the cooler to the communication between the low-temperature expander and the cooling medium passage and the outside, and adjusting the communication between the high-temperature expander and the circulation medium passage and the cooler to the communication between the high-temperature expander and the cooling medium passage and the outside.
13. The fuel carrying and heating type thermal cycle device is characterized in that a new expansion machine and a new heat regenerator are added in any one of the fuel carrying and heating type thermal cycle devices in the 1 st, the 3 rd, the 5 th and the 6 th, a first cycle working medium channel of a compressor is communicated with a low-temperature expansion machine through the heat regenerator and is adjusted to be divided into two paths after the first cycle working medium channel of the compressor is communicated with the new heat regenerator, the first path is communicated with the low-temperature expansion machine through the heat regenerator, and the second path is communicated with a cooler through the new expansion machine; the low-temperature expansion machine is provided with a circulating working medium channel which is communicated with a cooler and is adjusted to be communicated with a newly-added heat regenerator, the heat regenerator is provided with a circulating working medium channel which is communicated with the cooler and is adjusted to be communicated with the newly-added heat regenerator, and the newly-added heat regenerator is also provided with a circulating working medium channel which is communicated with the cooler, so that the fuel carrying same-regenerative thermal cycle device is formed.
14. The fuel carrying and regenerative thermal cycle device is characterized in that a newly-added expansion machine and a newly-added regenerator are added in the fuel carrying and regenerative thermal cycle device in the 2 nd or 4 th, a first cycle working medium channel of a compressor is communicated with a low-temperature expansion machine through the regenerator and is adjusted to be divided into two paths after the first cycle working medium channel of the compressor is communicated with the newly-added regenerator, the first path is communicated with the low-temperature expansion machine through the regenerator, and the second path is communicated with a cooler through the newly-added expansion machine; the low-temperature expansion machine with a circulating working medium channel is communicated with a cooler and is adjusted to be communicated with a newly-added heat regenerator, the high-temperature expansion machine with a circulating working medium channel is communicated with the cooler and is adjusted to be communicated with the newly-added heat regenerator, and the newly-added heat regenerator and the circulating working medium channel are communicated with the cooler, so that the fuel carrying same-heat-recovery type thermodynamic cycle device is formed.
15. The fuel-carrying and simultaneous regenerative thermal cycle device is formed by eliminating a cooler and a cooling medium channel communicated with the outside in any one of the fuel-carrying and simultaneous regenerative thermal cycle devices of 13-14, adjusting the communication of the cooler with a circulating medium channel and a compressor to the communication of the cooler with the outside with a cooling medium channel and the compressor, adjusting the communication of the newly added expander with a circulating medium channel and the cooler to the communication of the newly added expander with a cooling medium channel and the outside, and adjusting the communication of the newly added regenerator with a circulating medium channel and the cooler to the communication of the newly added regenerator with a cooling medium channel and the outside.
16. The fuel-carrying and simultaneous regenerative thermal cycle device is formed by eliminating a heat source regenerator, eliminating a low-grade fuel channel communicated with a heating furnace from the outside, eliminating an air channel communicated with the heating furnace from the outside through the heat source regenerator, eliminating a fuel gas channel communicated with the outside through the heat source regenerator, and additionally arranging a heat source medium channel to be communicated with the outside in the heating furnace in any one of the fuel-carrying and simultaneous regenerative thermal cycle devices of 1-15.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 3 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
Fig. 4 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
Fig. 5 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 6 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 7 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 8 is a schematic thermodynamic system diagram of an 8 th principle of a fuel-carrying and regenerative thermal cycle device according to the present invention.
Fig. 9 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention, item 9.
FIG. 10 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device according to the present invention.
FIG. 11 is a schematic thermodynamic system diagram of a fuel-carrying and regenerative thermal cycle device 11 according to the present invention.
FIG. 12 is a schematic diagram of a 12 th principle thermodynamic system of a fuel-carrying and regenerative thermal cycle device according to the present invention.
In the figure, a 1-compressor, a 2-low temperature expansion machine, a 3-high temperature expansion machine, a 4-heat regenerator, a 5-heating furnace, a 6-second heating furnace, a 7-heat source heat regenerator, an 8-second heat source heat regenerator, a 9-cooler, a 10-second heat regenerator, an A-dual-energy compressor, a B-low temperature expansion speed increaser, a C-high temperature expansion speed increaser, a D-spray pipe, an E-newly added expansion machine and an F-newly added heat regenerator; wherein the cooler is a condenser in the transcritical cycle.
Regarding the low-grade fuel and the high-grade fuel, the following brief description is given here:
(1) Low grade fuel: refers to a fuel in which it is difficult for combustion products to form a high-temperature heat source of a relatively high temperature.
(2) High grade fuel: refers to a fuel in which the combustion products are able to form a higher temperature heat source.
(3) For solid fuels, the gaseous species of the combustion products are the core of the heat source and are an important component of the thermodynamic system; the solid substances in the combustion products, such as waste residues, are discharged after the heat energy contained in the combustion products is utilized (the utilization process and the equipment are contained in the heating furnace or the air is preheated outside the heating furnace body), and the functions are not separately listed.
(4) The method is limited by the prior technical conditions or material performance, and particularly for the fuel which needs to provide driving high-temperature heat load for the circulating working medium through indirect means, the temperature which can be achieved by the circulating working medium under the prior technical conditions is adopted to divide the grade of the fuel, namely, the fuel which can be achieved by the circulating working medium (working medium) is high-grade fuel, and the fuel which can be achieved by the circulating working medium (working medium) is low-grade fuel.
The specific embodiment is as follows:
it should be noted that the description of the structure and the flow is not repeated if necessary, and the obvious flow is not described. The invention is described in detail below with reference to the drawings and examples.
The fuel carrying and regenerative thermal cycle device shown in fig. 1 is realized by the following steps:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel which is communicated with the second heating furnace 6, the outside is also provided with an air channel which is communicated with the second heating furnace 6 through a second heat source regenerator 8, the second heating furnace 6 is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulating medium channel which is communicated with the low-temperature expansion machine 2 through the regenerator 4, the low-temperature expansion machine 2 is also provided with a circulating medium channel which is communicated with the cooler 9, the compressor 1 is also provided with a second circulating medium channel which is communicated with the high-temperature expansion machine 3 through the heating furnace 5 and the second heating furnace 6, the high-temperature expansion machine 3 is also provided with a circulating medium channel which is communicated with the cooler 9 through the regenerator 4, and the cooler 9 is also provided with a circulating medium channel which is communicated with the compressor 1; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, external air flows through the heat source regenerator 7 to absorb heat and raise temperature and then enters the heating furnace 5, external low-grade fuel enters the heating furnace 5, fuel and air are mixed in the heating furnace 5 and combusted to generate high-temperature fuel gas, the fuel gas releases heat and continues to release heat and lower temperature after flowing through the circulation working medium of the heating furnace 5 and then is discharged outwards; the external air flows through the second heat source regenerator 8 to absorb heat and raise temperature and then enters the second heating furnace 6, the external high-grade fuel enters the second heating furnace 6, the fuel and the air are mixed in the second heating furnace 6 and combusted to generate fuel gas with higher temperature, the fuel gas releases heat and continues to release heat and lower temperature after flowing through the circulating working medium of the second heating furnace 6 and then flows through the second heat source regenerator 8, and then is discharged outwards; the circulating working medium enters a compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through a regenerator 4 to absorb heat and then enters a low-temperature expander 2 to be decompressed and acted, and the second path is continuously boosted and heated and then is provided for a heating furnace 5; the circulating working medium gradually absorbs heat and heats up through the heating furnace 5 and the second heating furnace 6, is depressurized and works through the high-temperature expander 3, releases heat and cools through the regenerator 4, and then is provided for the cooler 9, and the circulating working medium discharged by the low-temperature expander 2 is provided for the cooler 9; the circulating working medium flows through a cooler 9 to release heat and cool down and then is provided for the compressor 1; the low-grade fuel provides a driving heat load through the heating furnace 5, the high-grade fuel provides a driving heat load through the second heating furnace 6, the cooling medium takes away a small amount of low-temperature heat load through the cooler 9, air and fuel gas take away a small amount of low-temperature heat load through the inlet and outlet flow, and work output by the low-temperature expander 2 and the high-temperature expander 3 is provided for the compressor 1 and the outside to serve as power, so that the fuel carrying and heat returning type thermodynamic cycle device is formed.
The fuel carrying and regenerative thermal cycle device shown in fig. 2 is realized by:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel which is communicated with the second heating furnace 6, the outside is also provided with an air channel which is communicated with the second heating furnace 6 through a second heat source regenerator 8, the second heating furnace 6 is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulating medium channel which is communicated with the low-temperature expansion machine 2 through the regenerator 4, the low-temperature expansion machine 2 is also provided with a circulating medium channel which is communicated with the cooler 9, the compressor 1 is also provided with a second circulating medium channel which is communicated with the high-temperature expansion machine 3 through the heating furnace 5 and the second heating furnace 6, the high-temperature expansion machine 3 is also provided with a circulating medium channel which is communicated with the cooler 9 after the circulating medium channel is communicated with the high-temperature expansion machine 3 is also provided with the circulating medium channel which is communicated with the circulating medium channel with the cooler 1; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the circulating working medium discharged by the second heating furnace 6 enters the high-temperature expander 3 to perform decompression and work, flows through the heat regenerator 4 to release heat and cool to a certain extent, enters the high-temperature expander 3 to continue decompression and work, and then enters the cooler 9 to release heat and cool to form the fuel carrying and regenerative thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 3 is realized by the following steps:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel which is communicated with the second heating furnace 6, the outside is also provided with an air channel which is communicated with the second heating furnace 6 through a second heat source regenerator 8, the second heating furnace 6 is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulating medium channel which is communicated with the low-temperature expansion machine 2 through a regenerator 4, the low-temperature expansion machine 2 is also provided with a circulating medium channel which is communicated with the cooler 9, the compressor 1 is also provided with a second circulating medium channel which is communicated with the high-temperature expansion machine 3 through a second regenerator 10, the heating furnace 5 and the second heating furnace 6, the high-temperature expansion machine 3 is also provided with a circulating medium channel which is communicated with the cooler 9 through the second regenerator 10 and the regenerator 4, and the cooler 9 is also provided with a circulating medium channel which is also communicated with the cooling medium channel is communicated with the cooling machine 1; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the second path of circulating working medium discharged by the compressor 1 flows through the second heat regenerator 10 to absorb heat and raise temperature, and then is supplied to the heating furnace 5; the circulating working medium discharged by the high-temperature expander 3 flows through the second heat regenerator 10 and the heat regenerator 4 to release heat and cool gradually, and then enters the cooler 9 to release heat and cool, so that the fuel carrying same-heat type thermal cycle device is formed.
The fuel carrying and regenerative thermal cycle device shown in fig. 4 is implemented as follows:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel communicated with the heating furnace 5, the outside is also provided with an air channel communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel communicated with the second heating furnace 6, the outside is also provided with an air channel communicated with the second heating furnace 6 through a second heat source regenerator 8, the second heating furnace 6 is also provided with a fuel gas channel communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulating medium channel communicated with the low-temperature expansion machine 2 through a regenerator 4, the low-temperature expansion machine 2 is also provided with a circulating medium channel communicated with the cooler 9, the compressor 1 is also provided with a second circulating medium channel communicated with the high-temperature expansion machine 3 through a second regenerator 10, the heating furnace 5 and the second heating furnace 6, the high-temperature expansion machine 3 is also provided with a circulating medium channel communicated with the cooler 9 after the second heat source regenerator 10 and the regenerator 4 are communicated with themselves, and the cooler 9 is also provided with a circulating medium channel communicated with the compressor 1; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the second path of circulating working medium discharged by the compressor 1 flows through the second heat regenerator 10 to absorb heat and raise temperature, and then is supplied to the heating furnace 5; the circulating working medium discharged by the second heating furnace 6 enters the high-temperature expander 3 to perform depressurization and work, flows through the second heat regenerator 10 and the heat regenerator 4 to perform gradual heat release and temperature reduction to a certain extent, enters the high-temperature expander 3 to perform continuous depressurization and work, and then enters the cooler 9 to perform heat release and temperature reduction to form the fuel carrying and heat recovery type thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 5 is implemented as follows:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with the heating furnace 5, the outside is also provided with an air channel which is communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel which is communicated with the second heating furnace 6, the outside is also provided with an air channel which is communicated with the second heating furnace 6 through a second heat source regenerator 8, the second heating furnace 6 is also provided with a fuel gas channel which is communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulating medium channel which is communicated with the low-temperature expansion machine 2 through a regenerator 4, the low-temperature expansion machine 2 is also provided with a circulating medium channel which is communicated with the cooler 9, the compressor 1 is also provided with a circulating medium channel which is communicated with the high-temperature expansion machine 3 through the heating furnace 5 and the second heating furnace 6 after the compressor 1 is also communicated with the compressor 1 through a second regenerator 10, the high-temperature expansion machine 3 is also provided with a circulating medium channel which is communicated with the cooler 9 through the second regenerator 10 and the regenerator 4; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the circulating working medium enters a compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through a heat regenerator 4 to absorb heat and then enters a low-temperature expansion machine 2 to be decompressed and acted, and the second path continuously boosts and heats to a certain extent and then enters a second heat regenerator 10 to absorb heat and heat; the circulating working medium discharged by the second heat regenerator 10 enters the compressor 1 to continuously boost and heat, and is then provided for the heating furnace 5; the circulating working medium discharged by the second heating furnace 6 flows through the high-temperature expander 3 to perform decompression and work, flows through the second heat regenerator 10 and the heat regenerator 4 to release heat and cool gradually, and then enters the cooler 9 to release heat and cool so as to form the fuel carrying and regenerative type thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 6 is implemented as follows:
(1) Structurally, the device mainly comprises a compressor, a low-temperature expander, a high-temperature expander, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel communicated with the heating furnace 5, the outside is also provided with an air channel communicated with the heating furnace 5 through a heat source regenerator 7, the heating furnace 5 is also provided with a fuel gas channel communicated with the outside through the heat source regenerator 7, the outside is also provided with a high-grade fuel channel communicated with the second heating furnace 6 through a second heat source regenerator 8, the outside is also provided with an air channel communicated with the outside through a second heat source regenerator 8, the compressor 1 is provided with a first circulation working medium channel communicated with the low-temperature expansion machine 2 through a regenerator 4, the low-temperature expansion machine 2 is also provided with a circulation working medium channel communicated with the cooler 9, the compressor 1 is also provided with a circulation working medium channel communicated with the high-temperature expansion machine 3 through the heating furnace 5 and the second heating furnace 6 after being communicated with the compressor 1 through a second regenerator 10, the high-temperature expansion machine 3 is also provided with a circulation working medium channel communicated with the cooler 9 through the second regenerator 10, and the cooler 9 is also provided with a circulation working medium channel communicated with the compressor 1 after being communicated with the high-temperature expansion machine 3; the cooler 9 is also provided with a cooling medium passage communicated with the outside, and the low temperature expander 2 and the high temperature expander 3 are connected with the compressor 1 and transmit power.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the circulating working medium enters a compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path flows through a heat regenerator 4 to absorb heat and then enters a low-temperature expansion machine 2 to be decompressed and acted, and the second path continuously boosts and heats to a certain extent and then enters a second heat regenerator 10 to absorb heat and heat; the circulating working medium discharged by the second heat regenerator 10 enters the compressor 1 to continuously boost and heat, and is then provided for the heating furnace 5; the circulating working medium discharged by the second heating furnace 6 enters the high-temperature expander 3 to perform depressurization and work, flows through the second heat regenerator 10 to release heat and cool to a certain extent, then enters the high-temperature expander 3 to continue depressurization and work, and then flows through the heat regenerator 4 to release heat and cool to form the fuel carrying same-regenerative thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 7 is implemented as follows:
(1) In the fuel carrying and regenerative thermal cycle device shown in fig. 1, the compressor 1 is communicated with the high-temperature expander 3 through the heating furnace 5 and the second heating furnace 6 to adjust that the compressor 1 is communicated with the high-temperature expander 3 through the second heating furnace 6, and the external air channel is communicated with the second heating furnace 6 through the second heat source regenerator 8 to adjust that the external air channel is communicated with the second heating furnace 6 through the second heat source regenerator 8 and the heating furnace 5.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the external air flows through the second heat source regenerator 8 and the heating furnace 5 to absorb heat gradually and raise temperature, and then enters the second heating furnace 6 to participate in combustion; the second path of circulating working medium discharged by the compressor 1 flows through the second heating furnace 6 to absorb heat and raise temperature, and then is supplied to the high-temperature expander 3 to form the fuel carrying and regenerative thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 8 is implemented as follows:
(1) Structurally, in the fuel-carrying and regenerative thermal cycle device shown in fig. 1, a dual-energy compressor a is added in place of the compressor 1, a low-temperature expansion speed increaser B is added in place of the low-temperature expansion machine 2, and a high-temperature expansion speed increaser C is added in place of the high-temperature expansion machine 3.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the circulating working medium enters a dual-energy compressor A to be boosted, heated and decelerated to a certain extent, and then is divided into two paths, wherein the first path is subjected to heat absorption and heating by a heat regenerator 4, then enters a low-temperature expansion speed increaser B to be decompressed, acted and accelerated, and the second path is continuously boosted, heated and then provided for a heating furnace 5; the circulating working medium discharged by the second heating furnace 6 flows through the high-temperature expansion speed increaser C to perform depressurization and speed increase, flows through the heat regenerator 4 to release heat and cool, and then is supplied to the cooler 9, and the circulating working medium discharged by the low-temperature expansion speed increaser B is supplied to the cooler 9; the circulating working medium flows through a cooler 9 to release heat and cool, and then is provided for a dual-energy compressor A; the work output by the low-temperature expansion speed increaser B and the high-temperature expansion speed increaser C is provided for the dual-energy compressor A and the external power to form the fuel carrying and regenerative thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 9 is implemented as follows:
(1) Structurally, in the fuel-carrying and regenerative thermal cycle device shown in fig. 1, a dual-energy compressor a is added to replace the compressor 1, a spray pipe D is added to replace the low-temperature expander 2, and a high-temperature expansion speed increaser C is added to replace the high-temperature expander 3.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the circulating working medium enters a dual-energy compressor A to be boosted, heated and decelerated to a certain extent, and then is divided into two paths, wherein the first path flows through a regenerator 4 to absorb heat, then enters a spray pipe D to be decompressed and accelerated, and the second path is continuously boosted, heated and then provided for a heating furnace 5; the circulating working medium discharged by the second heating furnace 6 flows through the high-temperature expansion speed increaser C to perform depressurization and speed increase, flows through the heat regenerator 4 to release heat and cool, and then is supplied to the cooler 9, and the circulating working medium discharged by the spray pipe D is supplied to the cooler 9; the circulating working medium flows through a cooler 9 to release heat and cool, and then is provided for a dual-energy compressor A; the work output by the high-temperature expansion speed increaser C is provided for the dual-energy compressor A and external power to form the fuel carrying and regenerative thermal cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 10 is implemented as follows:
(1) In the fuel carrying and regenerative thermal cycle device shown in fig. 1, the cooler 9 and a cooling medium channel communicated with the outside are omitted, the communication between the cooling medium channel with the cooler 9 and the compressor 1 is adjusted to be the communication between the cooling medium channel with the outside and the compressor 1, the communication between the cooling medium channel with the low-temperature expansion machine 2 and the cooling medium channel with the cooler 9 is adjusted to be the communication between the cooling medium channel with the low-temperature expansion machine 2 and the outside, and the communication between the cooling medium channel with the regenerator 4 and the cooling medium channel with the cooler 9 is adjusted to be the communication between the cooling medium channel with the regenerator 4 and the outside.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the cooling medium enters the compressor 1 to be boosted and heated to a certain extent and then is divided into two paths, wherein the first path is subjected to heat absorption and heating through the heat regenerator 4 and then is subjected to depressurization and work application through the low-temperature expander 2 and is discharged to the outside, and the second path is continuously boosted and heated and then is provided for the heating furnace 5; the cooling medium flows through the heating furnace 5 and the second heating furnace 6 to absorb heat gradually, flows through the high-temperature expander 3 to reduce pressure and work, flows through the heat regenerator 4 to release heat and reduce temperature, and is discharged outwards; the cooling medium takes away low-temperature heat load through the inlet and outlet flow paths, and the fuel carrying and regenerative type thermodynamic cycle device is formed.
The fuel carrying and regenerative thermal cycle device shown in fig. 11 is implemented as follows:
(1) Structurally, in the fuel carrying and regenerative thermal cycle device shown in fig. 1, a newly added expander and a newly added regenerator are added, a first cycle working medium channel of a compressor 1 is communicated with a low-temperature expander 2 through a regenerator 4 and is adjusted to be divided into two paths after the first cycle working medium channel of the compressor 1 is communicated with the newly added regenerator F, wherein the first path is communicated with the low-temperature expander 2 through the regenerator 4, and the second path is communicated with a cooler 9 through a newly added expander E; the low-temperature expansion machine 2 is provided with a circulating working medium channel which is communicated with the cooler 9, so that the low-temperature expansion machine 2 is provided with a circulating working medium channel which is communicated with the newly-added heat regenerator F, the heat regenerator 4 is provided with a circulating working medium channel which is communicated with the cooler 9, so that the heat regenerator 4 is provided with a circulating working medium channel which is communicated with the newly-added heat regenerator F, and the newly-added heat regenerator F is also provided with a circulating working medium channel which is communicated with the cooler 9.
(2) In the flow, compared with the fuel carrying and regenerative thermal cycle device shown in fig. 1, the difference is that: the first path of circulating working medium discharged by the compressor 1 flows through the newly added heat regenerator F to absorb heat and raise temperature, and then is divided into two paths, wherein the first path of circulating working medium flows through the heat regenerator 4 to absorb heat and raise temperature and then is provided for the low-temperature expander 2, and the second path of circulating working medium flows through the newly added expander E to reduce pressure and apply work and then is provided for the cooler 9; the circulating working medium discharged by the low-temperature expander 2 flows through the newly added regenerator F to release heat and cool, and then is provided for the cooler 9; the circulating working medium discharged by the high-temperature expander 3 flows through the heat regenerator 4 and the newly added heat regenerator F to release heat gradually and cool down, and then is supplied to the cooler 9 to form the fuel carrying and heat returning type thermodynamic cycle device.
The fuel carrying and regenerative thermal cycle device shown in fig. 12 is implemented as follows:
in the fuel carrying and heat returning type thermodynamic cycle device shown in fig. 1, a heat source regenerator is omitted, a low-grade fuel channel which is externally communicated with a heating furnace 5 is omitted, an air channel which is externally communicated with the heating furnace 5 through the heat source regenerator 7 is omitted, a fuel gas channel which is externally communicated with the heating furnace 5 through the heat source regenerator 7 is omitted, and a heat source medium channel is additionally arranged in the heating furnace 5 and is communicated with the outside; the heat source medium replaces low-grade fuel, and the heat source medium provides driving heat load through the heating furnace 5 to form the fuel carrying and regenerative type thermodynamic cycle device.
The fuel carrying and regenerative thermal cycle device provided by the invention has the following effects and advantages:
(1) The irreversible loss of the temperature difference in the high-temperature heat load heat absorption link is small, and the heat efficiency is improved.
(2) The temperature and the quantity of the discharge of the warm load are obviously reduced or further reduced, and the irreversible loss of the temperature difference in the exothermic process is reduced.
(3) The thermodynamic perfection of the thermal power system is obviously improved, and a foundation is laid for constructing high-efficiency gas-steam combined cycle.
(4) The high-efficiency power utilization of the fuel type high-temperature heat load is realized, and the utilization level and the value of the fuel type high-temperature heat load are improved.
(5) The high-grade fuel and the low-grade fuel realize high-efficiency thermal power, so that the economic value of converting the low-grade fuel into mechanical energy is greatly improved, and the fuel cost is remarkably reduced.
(6) And a plurality of heat regeneration technical means are provided, and the coordination of the device in the aspects of power, thermal efficiency, step-up ratio and the like is effectively improved.
(7) The process is reasonable, the structure is simple, the scheme is rich, and the fuel is effectively suitable for various fuels; the manufacturing cost of the fuel carrying and regenerative thermal cycle device is obviously reduced, and the system economy is improved.
(8) The method provides a plurality of specific technical schemes and has wide application range; the energy reasonable utilization level is improved, and the application range and the value of the fuel carrying same-regenerative thermal cycle device are greatly expanded.

Claims (16)

1. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6), the outside is also provided with an air channel which is communicated with the second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is provided with a first circulating working medium channel which is communicated with a low-temperature expander (2) through a regenerator (4), the low-temperature expander (2) is also provided with a circulating working medium channel which is communicated with a cooler (9), the compressor (1) is also provided with a second circulating working medium channel which is communicated with a high-temperature expander (3) through the heating furnace (5) and the second heating furnace (6), and the high-temperature expander (3) is also provided with a circulating working medium channel which is also communicated with the circulating working medium channel which is communicated with the compressor (1); the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
2. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator and a cooler; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is provided with a first circulating working medium channel which is communicated with a low-temperature expander (2) through the regenerator (4), the low-temperature expander (2) is also provided with a circulating working medium channel which is communicated with a cooler (9), the compressor (1) is also provided with a second circulating working medium channel which is communicated with a high-temperature expander (3) through the heating furnace (5) and the second heating furnace (6), and the high-temperature expander (3) is also provided with a circulating working medium channel which is communicated with the cooler (9) after the high-temperature expander (3) is also communicated with the high-temperature expander (3) by itself; the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
3. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is provided with a first circulation working medium channel which is communicated with a low-temperature expansion machine (2) through a regenerator (4), the low-temperature expansion machine (2) is also provided with a circulation working medium channel which is communicated with a cooler (9), the compressor (1) is also provided with a second circulation working medium channel which is communicated with a high-temperature expansion machine (3) through a second regenerator (10), the heating furnace (5) and the second heating furnace (6), the high-temperature expansion machine (3) is also provided with a circulation working medium channel which is also communicated with the cooler (9) through the second regenerator (10) and the regenerator (4); the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
4. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is provided with a first circulating working medium channel which is communicated with a low-temperature expansion machine (2) through a regenerator (4), the low-temperature expansion machine (2) is also provided with a circulating working medium channel which is communicated with a cooler (9), the compressor (1) is also provided with a second circulating working medium channel which is communicated with a high-temperature expansion machine (3) through a second regenerator (10), the heating furnace (5) and the second heating furnace (6) and the high-temperature expansion machine (3), and the high-temperature expansion machine (3) is also communicated with the high-temperature expansion machine (9) through the regenerator (4) and the high-temperature expansion machine (3); the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
5. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is also provided with a first circulating working medium channel which is communicated with a low-temperature expander (2) through a regenerator (4), the low-temperature expander (2) is also provided with a circulating working medium channel which is communicated with a cooler (9), and after the compressor (1) is also provided with the second circulating working medium channel which is communicated with the compressor (1) through the second regenerator (10) through the heating furnace (5) and the second heating furnace (6) is communicated with the high-temperature expander (3), and the high-temperature expander (3) is also provided with the circulating working medium channel which is also communicated with the compressor (9) through the regenerator (4) and the low-temperature expander (9); the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
6. The fuel carrying same regenerative thermal cycle device mainly comprises a compressor, a low-temperature expansion machine, a high-temperature expansion machine, a heat regenerator, a heating furnace, a second heating furnace, a heat source heat regenerator, a second heat source heat regenerator, a cooler and a second heat regenerator; the outside is provided with a low-grade fuel channel which is communicated with a heating furnace (5), the outside is also provided with an air channel which is communicated with the heating furnace (5) through a heat source regenerator (7), the heating furnace (5) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (7), the outside is also provided with a high-grade fuel channel which is communicated with a second heating furnace (6) through a second heat source regenerator (8), the second heating furnace (6) is also provided with a fuel gas channel which is communicated with the outside through the second heat source regenerator (8), the compressor (1) is also provided with a first circulation working medium channel which is communicated with a low-temperature expander (2) through the regenerator (4), the low-temperature expander (2) is also provided with a circulation working medium channel which is communicated with a cooler (9), after the compressor (1) is also provided with a circulation working medium channel which is communicated with the compressor (1) through the second regenerator (10) through the heating furnace (5) and the second heating furnace (6) is communicated with the high-temperature expander (3), and the high-temperature expander (3) is also provided with the heat source regenerator (9) through the second heat source regenerator (8) which is also communicated with the working medium (9) through the heat regenerator (9); the cooler (9) is also communicated with the outside through a cooling medium channel, and the low-temperature expander (2) and the high-temperature expander (3) are connected with the compressor (1) and transmit power to form the fuel carrying same-regenerative thermal cycle device.
7. In the fuel-carrying and simultaneous-heating type thermal circulation device, in any one of claims 1-2 and 5-6, a compressor (1) is communicated with a high-temperature expansion machine (3) through a heating furnace (5) and a second heating furnace (6) to adjust the condition that the compressor (1) is communicated with the high-temperature expansion machine (3) through the second heating furnace (6) by a second circulation working medium channel, and an external air channel is communicated with the second heating furnace (6) through a second heat source regenerator (8) to adjust the external air channel to be communicated with the second heating furnace (6) through the second heat source regenerator (8) and the heating furnace (5), so as to form the fuel-carrying and simultaneous-heating type thermal circulation device.
8. In the fuel-carrying and simultaneous-heating type thermal cycle device according to claim 3 or claim 4, a compressor (1) is provided with a second circulation working medium channel which is communicated with a high-temperature expansion machine (3) through a second heat regenerator (10), a heating furnace (5) and a second heating furnace (6), so that the compressor (1) is provided with the second circulation working medium channel which is communicated with the high-temperature expansion machine (3) through the second heat regenerator (10) and the second heating furnace (6), and an external air channel which is communicated with the second heating furnace (6) through a second heat source heat regenerator (8) is provided with an external air channel which is communicated with the second heating furnace (6) through the second heat source heat regenerator (8) and the heating furnace (5), so that the fuel-carrying and simultaneous-heating type thermal cycle device is formed.
9. In the fuel-carrying and simultaneous regenerative thermal cycle device according to any one of claims 1 to 8, a dual-energy compressor (A) is added to replace the compressor (1), a low-temperature expansion speed increaser (B) is added to replace the low-temperature expansion machine (2), and a high-temperature expansion speed increaser (C) is added to replace the high-temperature expansion machine (3), so that the fuel-carrying and simultaneous regenerative thermal cycle device is formed.
10. In the fuel-carrying and simultaneous regenerative thermal cycle device according to any one of claims 1 to 8, a dual-energy compressor (A) is added to replace the compressor (1), a spray pipe (D) is added to replace the low-temperature expander (2), and a high-temperature expansion speed increaser (C) is added to replace the high-temperature expander (3) so as to form the fuel-carrying and simultaneous regenerative thermal cycle device.
11. In the fuel-carrying and regenerative thermal cycle device according to any one of claims 1, 3, 5 and 6, a cooler (9) and a cooling medium channel communicated with the outside are omitted, the communication of the cooling medium channel with the compressor (1) in the cooler (9) is adjusted to the communication of the cooling medium channel with the compressor (1) in the outside, the communication of the cooling medium channel with the cooler (9) in the low-temperature expansion machine (2) is adjusted to the communication of the cooling medium channel with the outside in the low-temperature expansion machine (2), and the communication of the heat regenerator (4) in the circulation medium channel with the cooler (9) is adjusted to the communication of the cooling medium channel with the outside in the heat regenerator (4), so that the fuel-carrying and regenerative thermal cycle device is formed.
12. In the fuel-carrying and regenerative thermal cycle device according to claim 2 or claim 4, a cooler (9) and a cooling medium channel communicated with the outside are omitted, the cooler (9) is communicated with the compressor (1) and is adjusted to be communicated with the compressor (1) by a cooling medium channel, the low-temperature expander (2) is communicated with the cooler (9) and is adjusted to be communicated with the low-temperature expander (2) by a cooling medium channel, and the high-temperature expander (3) is communicated with the cooler (9) and is adjusted to be communicated with the high-temperature expander (3) by a cooling medium channel, so that the fuel-carrying and regenerative thermal cycle device is formed.
13. In the fuel-carrying and same-heating type thermal cycle device, a new expansion machine and a new heat regenerator are added in any one of the fuel-carrying and same-heating type thermal cycle devices in claims 1, 3, 5 and 6, a first cycle working medium channel of a compressor (1) is communicated with a low-temperature expansion machine (2) through a heat regenerator (4) and is adjusted to be divided into two paths after the first cycle working medium channel of the compressor (1) is communicated with the new heat regenerator (F), wherein the first path is communicated with the low-temperature expansion machine (2) through the heat regenerator (4), and the second path is communicated with a cooler (9) through the new expansion machine (E); the low-temperature expansion machine (2) is provided with a circulating working medium channel which is communicated with the cooler (9) and is adjusted to be provided with a circulating working medium channel which is communicated with the newly-added heat regenerator (F), the heat regenerator (4) is provided with a circulating working medium channel which is communicated with the cooler (9) and is adjusted to be provided with a heat regenerator (4) which is provided with a circulating working medium channel which is communicated with the newly-added heat regenerator (F), and the newly-added heat regenerator (F) is also provided with a circulating working medium channel which is communicated with the cooler (9), so that the fuel carrying same-heat returning type thermal circulation device is formed.
14. In the fuel carrying and heating type thermal cycle device in claim 2 or claim 4, a new expansion machine and a new heat regenerator are added, a first cycle working medium channel of the compressor (1) is communicated with the low-temperature expansion machine (2) through the heat regenerator (4), and is adjusted to be divided into two paths after the first cycle working medium channel of the compressor (1) is communicated with the new heat regenerator (F), wherein the first path is communicated with the low-temperature expansion machine (2) through the heat regenerator (4), and the second path is communicated with the cooler (9) through the new expansion machine (E); the low-temperature expansion machine (2) is provided with a circulating working medium channel which is communicated with the cooler (9) and is adjusted to be communicated with the newly-added heat regenerator (F), the high-temperature expansion machine (3) is provided with a circulating working medium channel which is communicated with the cooler (9) and is adjusted to be communicated with the high-temperature expansion machine (3) is provided with a circulating working medium channel which is communicated with the newly-added heat regenerator (F), and the newly-added heat regenerator (F) is also provided with a circulating working medium channel which is communicated with the cooler (9), so that the fuel carrying same-heat-returning type thermal circulation device is formed.
15. In the fuel-carrying and regenerative thermal cycle device, any one of claims 13-14 is provided, a cooler (9) and a cooling medium channel communicated with the outside are omitted, the communication of the cooling medium channel with the cooler (9) and the compressor (1) is adjusted to be the communication of the cooling medium channel with the outside and the compressor (1), the communication of the circulating medium channel with the cooling medium channel with the newly added expander (E) and the cooling medium channel with the cooler (9) is adjusted to be the communication of the cooling medium channel with the outside, and the communication of the circulating medium channel with the cooling medium channel with the newly added regenerator (F) and the cooling medium channel with the outside are adjusted to be the communication of the newly added regenerator (F), so that the fuel-carrying and regenerative thermal cycle device is formed.
16. The fuel carrying and heating type thermal cycle device is characterized in that in any one of the fuel carrying and heating type thermal cycle devices in claims 1-15, a heat source regenerator is omitted, a low-grade fuel channel communicated with a heating furnace (5) from outside is omitted, an air channel communicated with the heating furnace (5) from outside through the heat source regenerator (7) is omitted, a fuel gas channel communicated with the outside through the heat source regenerator (7) from the heating furnace (5) is omitted, a heat source medium channel is additionally arranged in the heating furnace (5) and is communicated with the outside, and the fuel carrying and heating type thermal cycle device is formed.
CN202311094037.0A 2022-08-19 2023-08-17 Fuel carrying same-heating type thermal cycle device Pending CN117108397A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2022110299921 2022-08-19
CN202211029992 2022-08-19

Publications (1)

Publication Number Publication Date
CN117108397A true CN117108397A (en) 2023-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311094037.0A Pending CN117108397A (en) 2022-08-19 2023-08-17 Fuel carrying same-heating type thermal cycle device

Country Status (1)

Country Link
CN (1) CN117108397A (en)

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