Regenerative steam power device

Abstract

The invention provides a regenerative steam power device, and belongs to the technical field of thermodynamics and thermodynamic. The condenser is communicated with the heat regenerator through a condensate pipeline and a booster pump, then the heat regenerator is communicated with the solar heat collecting system through a steam channel, and the compressor is communicated with the solar heat collecting system through a steam channel. The solar heat collection system is further provided with a steam channel to be communicated with the combustion chamber, the combustion chamber is further provided with the steam channel to be divided into two paths, the first path is communicated with the expansion machine, the second path is communicated with the compressor through the second expansion machine and the heat regenerator, the expansion machine is further provided with a low-pressure steam channel to be communicated with the condenser, and the condenser is further provided with a condensate water pipeline to be communicated with the outside. The condenser further communicates with the outside through a cooling medium channel, the expansion machine and the second expansion machine are connected with the compressor and transmit power, and the heat regeneration type steam power device is formed.

Description

Technical field:

[0001] The invention belongs to the field of thermodynamics and thermodynamic technology. Background technology:

[0002] When humans use thermal energy to obtain mechanical energy, they encounter different specific resource conditions, and accordingly require appropriate technical measures to rationalize the efficiency of thermal conversion and minimize the manufacturing cost of thermal devices.

[0003] Abundant ambient air provides the basis for achieving small temperature difference heat release of thermal devices; however, in order to obtain the highest possible thermal efficiency, the working fluid must minimize the heat transfer temperature difference when obtaining the driving heat load. To this end, when obtaining the high-temperature heat load, the circulating working fluid should avoid the vaporization process of the circulating working fluid as much as possible.

[0004] The advantage of steam thermal technology based on the Rankine cycle is that it can achieve heat release with a small temperature difference. Its disadvantage is that it is difficult to coordinate the relationship between pressure, temperature and heat transfer temperature difference in the endothermic process. Under supercritical conditions, due to the requirements of materials, safety, etc., excessive pressure limits the substantial increase in steam temperature.

[0005] Based on the basic principle of simply, actively, safely and efficiently utilizing energy to obtain power, the present invention provides a heat recovery steam power device which combines steam cycle with gas cycle, has a reasonable process, a simple structure, flexible heat recovery, is adaptable to a variety of energy sources and their combinations, and has a reasonable thermodynamic perfection. Summary of the invention:

[0006] The main purpose of the present invention is to provide a heat recovery steam power device, and the specific invention contents are described as follows:

[0007] 1. A heat recovery steam power device, mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar thermal collection system and a condenser; the condenser has a condensate pipeline connected to the regenerator through the booster pump, and then the regenerator has a steam channel connected to the solar thermal collection system, the compressor has a steam channel connected to the solar thermal collection system, and the solar thermal collection system also has a steam channel divided into two paths - the first path is connected to the expander and the second path is connected to the compressor through the second expander and the regenerator, and the expander also has a low-pressure steam channel connected to the condenser; the condenser also has a cooling medium channel connected to the outside, the expander and the second expander are connected to the compressor and transmit power, forming a heat recovery steam power device; wherein, or the expander and the second expander are connected to the compressor and the booster pump and transmit power.

[0008] 2. A heat recovery steam power device, mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar thermal collection system, a condenser and a second regenerator; the condenser has a condensate pipeline connected to the second regenerator and the regenerator through a booster pump, and then the regenerator has a steam channel connected to the solar thermal collection system, the compressor has a steam channel connected to the solar thermal collection system, the solar thermal collection system also has a steam channel divided into two paths - the first path is connected to the expander and the second path is connected to the compressor through the second expander and the regenerator, the expander also has a low-pressure steam channel connected to the condenser through the second regenerator; the condenser also has a cooling medium channel connected to the outside, the expander and the second expander are connected to the compressor and transmit power, forming a heat recovery steam power device; wherein, or the expander and the second expander are connected to the compressor and the booster pump and transmit power.

[0009] 3. A heat recovery type steam power device is a heat recovery type steam power device as described in item 1 or 2, wherein a heat source heat exchanger is added, the heat source heat exchanger has a heat source medium channel connected to the outside, and the heat recovery device and the compressor have a steam channel connected to the solar thermal collection system, which is adjusted to the heat recovery device and the compressor have a steam channel connected to the solar thermal collection system via the heat source heat exchanger, thereby forming a heat recovery type steam power device.

[0010] 4. A heat recovery steam power device is a heat recovery steam power device as described in item 1 or 2, wherein a heat source heat exchanger and a second compressor are added, the heat source heat exchanger has a heat source medium channel connected to the outside, the heat recovery device and the compressor have a steam channel connected to the solar thermal collection system, the heat recovery device and the compressor have a steam channel connected to the solar thermal collection system via the heat source heat exchanger and the second compressor, the expander is connected to the second compressor and transmits power, and a heat recovery steam power device is formed.

[0011] 5. A heat recovery type steam power device is a heat recovery type steam power device as described in item 1 or 2, wherein a heating furnace and a heat source heat regenerator are added, a fuel channel is externally connected to the heating furnace, an air channel is externally connected to the heating furnace via the heat source heat regenerator, and the heating furnace also has a gas channel connected to the outside via the heat source heat regenerator, and the steam channel connecting the heat regenerator and the compressor to the solar energy thermal collection system is adjusted to the steam channel connecting the heat regenerator and the compressor to the solar energy thermal collection system via the heating furnace, thereby forming a heat recovery type steam power device.

[0012] 6. A heat recovery type steam power device is a heat recovery type steam power device as described in item 1 or 2, wherein a heating furnace and a heat source heat regenerator are added, a fuel channel is externally connected to the heating furnace, an air channel is externally connected to the heating furnace via the heat source heat regenerator, and the heating furnace also has a gas channel connected to the outside via the heat source heat regenerator, and the solar thermal collection system with a steam channel divided into two paths is adjusted to a solar thermal collection system with a steam channel divided into two paths after passing through the heating furnace, thereby forming a heat recovery type steam power device.

[0013] 7. A heat recovery steam power device is a heat recovery steam power device as described in item 1 or 2, wherein a heating furnace, a heat source heat regenerator and a second compressor are added, an external fuel channel is connected to the heating furnace, an external air channel is connected to the heating furnace via the heat source heat regenerator, and the heating furnace also has a gas channel connected to the outside via the heat source heat regenerator. The steam channel of the solar thermal collection system is divided into two paths, which is adjusted to a solar thermal collection system having a steam channel that is divided into two paths after passing through the second compressor and the heating furnace, and the expander is connected to the second compressor and transmits power to form a heat recovery steam power device.

[0014] 8. A heat recovery steam power device is a heat recovery steam power device as described in item 1 or 2, wherein a combustion chamber is added, an external hydrogen channel is connected to the combustion chamber, and an external oxygen channel is connected to the combustion chamber. The steam channel of the solar thermal collection system is divided into two paths, and the solar thermal collection system has a steam channel connected to the combustion chamber, and then the combustion chamber has a steam channel divided into two paths. The condenser is additionally provided with a condensate pipeline connected to the outside, thereby forming a heat recovery steam power device.

[0015] 9. A heat recovery steam power device is a heat recovery steam power device as described in item 1 or 2, wherein a combustion chamber and a second compressor are added, an external hydrogen channel is connected to the combustion chamber, and an external oxygen channel is connected to the combustion chamber. The steam channel of the solar thermal collection system is divided into two paths, and the steam channel of the solar thermal collection system is adjusted to be connected to the combustion chamber through the second compressor, and then the steam channel of the combustion chamber is divided into two paths. The condenser is additionally provided with a condensate pipeline connected to the outside, and the expander is connected to the second compressor and transmits power to form a heat recovery steam power device.

[0016] 10. A heat recovery steam power plant is a heat recovery steam power plant in which a nuclear reactor is added to any of the heat recovery steam power plants described in items 1 to 5 and the solar thermal collection system is replaced to form a heat recovery steam power plant.

[0017] 11. A heat recovery steam power device is formed by adding an expansion speed increaser to replace the expander, adding a diffuser to replace the booster pump, in any of the heat recovery steam power devices described in items 1 to 11, to form a heat recovery steam power device.

[0018] 12. A heat recovery steam power device is a heat recovery steam power device that is formed by adding an expansion speed increaser to replace the expander, adding a diffuser to replace the booster pump, adding a second expansion speed increaser to replace the second expander, and adding a dual-energy compressor to replace the compressor in any of the heat recovery steam power devices described in items 1 to 11. Description of the drawings:

[0019] Figure 1 This is the first principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0020] Figure 2 This is the second principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0021] Figure 3 This is the third principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0022] Figure 4 This is the fourth principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0023] Figure 5 This is the fifth principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0024] Figure 6 This is the sixth principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0025] Figure 7 This is the seventh principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0026] Figure 8 This is the eighth principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0027] Fig. 9 This is the ninth principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0028] Fig.10 This is the 10th principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0029] Fig.11 This is the 11th principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0030] Fig.12 This is the 12th principle thermodynamic system diagram of the heat recovery steam power plant provided by the present invention.

[0031] In the figure, 1-expander, 2-second expander, 3-compressor, 4-boosting pump, 5-regenerator, 6-solar thermal collection system, 7-condenser, 8-second regenerator, 9-heat source heat exchanger, 10-second compressor, 11-heating furnace, 12-heat source regenerator, 13-combustion chamber, 14-nuclear reactor, 15-expander speed increaser, 16-diffusion pipe, 17-second expander speed increaser, 18-dual-energy compressor.

[0032] ※ Regarding the solar thermal collection system, here is a brief description:

[0033] (1) Solar thermal system, also known as solar heating system, refers to a heating system that uses collectors to convert solar radiation energy into high-temperature thermal energy (referred to as photothermal energy) and can be used to provide driving heat load to the thermal cycle system; it is mainly composed of collectors and related necessary auxiliary facilities.

[0034] (2) Types of solar thermal collection systems, including but not limited to: ① Concentrating solar thermal collection systems, currently there are three main types of systems: trough, tower and butterfly; ② Non-concentrating solar thermal collection systems, currently there are solar ponds, solar chimneys and other systems.

[0035] (3) There are currently two main ways of providing heat to solar thermal systems: 1. The high-temperature heat energy converted from solar energy is directly provided to the heated medium flowing through the solar thermal system; 2. The high-temperature heat energy converted from solar energy is first provided to the working medium of its own circulation loop, and then provided by the working medium to the heated medium flowing through the solar thermal system through a heat exchanger.

[0036] ※ Regarding nuclear energy and nuclear reactors, here is a brief description:

[0037] The nuclear reactor in the present invention is a heating device that uses nuclear energy to directly or indirectly provide high-temperature heat load to the working medium, which generally includes two situations:

[0038] (1) The heat energy released by nuclear fuel through nuclear reactions is directly provided to the circulating working fluid flowing through the nuclear reactor.

[0039] (2) The heat energy released by the nuclear fuel through the nuclear reaction is first provided to the primary cooling medium, and then provided by the primary cooling medium to the circulating working fluid flowing through the nuclear reactor through the heat exchanger by natural convection or forced convection - this means that the heat exchanger is regarded as an integral part of the nuclear reactor 14.

[0040] ※ Regarding fuel, here is a brief description:

[0041] For solid fuels, the gaseous substances in the combustion products are the core of the heat source and an important component of the thermal system. The solid substances in the combustion products, such as waste slag, are discharged after the heat energy they contain is utilized (the utilization process and equipment are contained in the combustion chamber or the air is preheated outside the combustion chamber body). They are not listed separately and their functions are not described separately. In addition, the small amount of heat carried away by air and gas when entering and exiting the combustion chamber is often ignored when describing the process. Specific implementation method:

[0042] First of all, it should be noted that in the description of the structure and process, no repetition is made unless necessary; and obvious processes are not described. The present invention is described in detail below with reference to the drawings and examples.

[0043] Figure 1 The heat recovery steam power plant shown is realized as follows:

[0044] (1) Structurally, it is mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar thermal collection system and a condenser; the condenser 7 has a condensate pipeline connected to the regenerator 5 through the booster pump 4, and then the regenerator 5 is connected to the solar thermal collection system 6 through a steam channel; the compressor 3 is connected to the solar thermal collection system 6 through a steam channel; the solar thermal collection system 6 also has a steam channel divided into two paths - the first path is connected to the expander 1 and the second path is connected to the compressor 3 through the second expander 2 and the regenerator 5; the expander 1 also has a low-pressure steam channel connected to the condenser 7; the condenser 7 also has a cooling medium channel connected to the outside; the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

[0045] (2) In terms of the process, the condensate discharged from the condenser 7 flows through the booster pump 4 to increase the pressure, flows through the regenerator 5 to absorb heat and heat up, and then enters the solar thermal collection system 6 to absorb heat and heat up. The high-pressure steam discharged from the compressor 3 enters the solar thermal collection system 6 to absorb heat and heat up. The steam discharged from the solar thermal collection system 6 is divided into two paths: the first path enters the expander 1 to reduce the pressure and work and enters the condenser 7 to release heat and condense, and the second path flows through the second expander 2 to reduce the pressure and work, flows through the regenerator 5 to release heat and cool down, and enters the compressor 3 to increase the pressure and temperature. The solar energy provides the driving heat load through the solar thermal collection system 6, and the cooling medium takes away the low-temperature heat load through the condenser 7. The work output by the expander 1 and the second expander 2 is provided to the compressor 3 and the external working power, or the work output by the expander 1 and the second expander 2 is provided to the compressor 3, the booster pump 4 and the external working power, forming a heat recovery type steam power device.

[0046] Figure 2 The heat recovery steam power plant shown is realized as follows:

[0047] (1) Structurally, it is mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar thermal collection system, a condenser, and a second regenerator; the condenser 7 has a condensate pipeline connected to the second regenerator 8 and the regenerator 5 through the booster pump 4, and then the regenerator 5 has a steam channel connected to the solar thermal collection system 6. The compressor 3 has a steam channel connected to the solar thermal collection system 6. The solar thermal collection system 6 also has a steam channel divided into two paths - the first path is connected to the expander 1 and the second path is connected to the compressor 3 through the second expander 2 and the regenerator 5. The expander 1 also has a low-pressure steam channel connected to the condenser 7 through the second regenerator 8; the condenser 7 also has a cooling medium channel connected to the outside, and the expander 1 and the second expander 2 are connected to the compressor 3 and transmit power.

[0048] (2) In terms of process, Figure 1Compared with the heat recovery steam power device shown in the figure, the difference is that the condensate discharged from the condenser 7 flows through the booster pump 4 to increase the pressure, flows through the second heat regenerator 8 and the heat regenerator 5 to absorb heat and heat up and vaporize, and then enters the solar thermal collection system 6 to absorb heat and heat up; the low-pressure steam discharged from the expander 1 flows through the second heat regenerator 8 to release heat and cool down, and then enters the condenser 7 to release heat and condense, forming a heat recovery steam power device.

[0049] Figure 3 The heat recovery steam power plant shown is realized as follows:

[0050] (1) Structurally, Figure 2 In the heat recovery steam power device shown, a heat source heat exchanger is added, and the heat source heat exchanger 9 has a heat source medium channel connected to the outside. The heat regenerator 5 and the compressor 3 have a steam channel connected to the solar thermal collection system 6, which is adjusted to the heat regenerator 5 and the compressor 3 have a steam channel connected to the solar thermal collection system 6 through the heat source heat exchanger 9.

[0051] (2) In terms of process, Figure 2 Compared with the heat recovery steam power device shown in the figure, the difference is that the high-pressure steam discharged from the compressor 3 and the heat regenerator 5 flows through the heat source heat exchanger 9 to absorb heat and heat up, and then enters the solar energy collection system 6 to absorb heat and heat up; the increased heat source medium provides a driving heat load through the heat source heat exchanger 9 to form a heat recovery steam power device.

[0052] Figure 4 The heat recovery steam power plant shown is realized as follows:

[0053] (1) Structurally, Figure 2 In the heat recovery steam power device shown, a heat source heat exchanger and a second compressor are added, and the heat source heat exchanger 9 has a heat source medium channel connected to the outside. The regenerator 5 and the compressor 3 have a steam channel connected to the solar thermal collection system 6, which is adjusted to the regenerator 5 and the compressor 3 have a steam channel connected to the solar thermal collection system 6 through the heat source heat exchanger 9 and the second compressor 10, and the expander 1 is connected to the second compressor 10 and transmits power.

[0054] (2) In terms of process, Figure 2 Compared with the heat recovery steam power device shown in the figure, the difference is that: the steam discharged from the compressor 3 and the heat regenerator 5 flows through the heat source heat exchanger 9 to absorb heat and increase the temperature, flows through the second compressor 10 to increase the pressure and temperature, and then enters the solar energy collection system 6 to absorb heat and increase the temperature; the work output by the expander 1 and the second expander 2 is provided to the compressor 3, the second compressor 10 and the external working force, and the increased heat source medium provides a driving heat load through the heat source heat exchanger 9 to form a heat recovery steam power device.

[0055] Figure 5 The heat recovery steam power plant shown is realized as follows:

[0056] (1) Structurally, Figure 2 In the heat recovery steam power device shown, a heating furnace and a heat source regenerator are added, a fuel channel is connected to the heating furnace 11 on the outside, an air channel is connected to the heating furnace 11 on the outside through the heat source regenerator 12, and the heating furnace 11 also has a gas channel connected to the outside through the heat source regenerator 12. The steam channel connecting the regenerator 5 and the compressor 3 with the solar thermal collection system 6 is adjusted to the steam channel connecting the regenerator 5 and the compressor 3 with the solar thermal collection system 6 through the heating furnace 10.

[0057] (2) In terms of process, Figure 2 Compared with the heat recovery steam power device shown in the figure, the difference is that: external fuel enters the heating furnace 11, and external air flows through the heat source heat recovery device 12 to absorb heat and heat up, and then enters the heating furnace 11, the fuel and air are mixed and burned in the heating furnace 11 to generate high-temperature combustion gas, and the combustion gas releases heat to the steam flowing through the heating furnace 11, and then flows through the heat source heat recovery device 12 to release heat and cool down and be discharged to the outside; the steam discharged by the compressor 3 and the heat recovery device 5 flows through the heating furnace 11 to absorb heat and heat up, and then enters the solar energy collection system 6 to absorb heat and heat up; the increased fuel provides a driving heat load through the heating furnace 11, and the increased air and gas take away the discharge heat load by entering and exiting the heating furnace 11, forming a heat recovery steam power device.

[0058] Figure 6 The heat recovery steam power plant shown is realized as follows:

[0059] (1) Structurally, Figure 2 In the heat recovery steam power device shown, a heating furnace and a heat source heat regenerator are added, a fuel channel is externally connected to the heating furnace 11, an air channel is externally connected to the heating furnace 11 via the heat source heat regenerator 12, and the heating furnace 11 also has a gas channel connected to the outside via the heat source heat regenerator 12. The solar thermal collection system 6 with a steam channel divided into two paths is adjusted to a solar thermal collection system 6 with a steam channel divided into two paths after passing through the heating furnace 11.

[0060] (2) In terms of process, Figure 2 Compared with the heat recovery steam power device shown in the figure, the difference is that: external fuel enters the heating furnace 11, and external air flows through the heat source heat recovery device 12 to absorb heat and heat up, and then enters the heating furnace 11, the fuel and air are mixed and burned in the heating furnace 11 to generate high-temperature combustion gas, and the combustion gas releases heat to the steam flowing through the heating furnace 11, and then flows through the heat source heat recovery device 12 to release heat and cool down and be discharged to the outside; the steam discharged by the solar energy collection system 6 flows through the heating furnace 11 to absorb heat and heat up, and then is divided into two paths - the first path is provided to the expander 1 and the second path is provided to the second expander 2; the increased fuel is used to provide a driving heat load through the heating furnace 11, and the increased air and gas take away the discharge heat load by entering and exiting the heating furnace 11, forming a heat recovery steam power device.

[0061] Figure 7 The heat recovery steam power plant shown is realized as follows:

[0062] (1) Structurally, Figure 2 In the heat recovery steam power device shown, a heating furnace, a heat source heat regenerator and a second compressor are added, a fuel channel is externally connected to the heating furnace 11, an air channel is externally connected to the heating furnace 11 through the heat source heat regenerator 12, and the heating furnace 11 also has a gas channel connected to the outside through the heat source heat regenerator 12. The steam channel of the solar thermal collection system 6 is divided into two paths and adjusted to the steam channel of the solar thermal collection system 6 being divided into two paths after passing through the second compressor 10 and the heating furnace 11, and the expander 1 is connected to the second compressor 10 and transmits power.

[0063] (2) In terms of process, Figure 2 Compared with the heat recovery steam power device shown in the figure, the difference is that: external fuel enters the heating furnace 11, and external air flows through the heat source heat recovery device 12 to absorb heat and heat up, and then enters the heating furnace 11, the fuel and air are mixed and burned in the heating furnace 11 to generate high-temperature combustion gas, and the combustion gas releases heat to the steam flowing through the heating furnace 11, and then flows through the heat source heat recovery device 12 to release heat and cool down and be discharged to the outside; the steam discharged by the solar energy collection system 6 flows through the second compressor 10 to increase the pressure and temperature, flows through the heating furnace 11 to absorb heat and heat up, and then is divided into two paths - the first path is provided to the expander 1 and the second path is provided to the second expander 2; the increased fuel is used to provide a driving heat load through the heating furnace 11, and the increased air and gas take away the discharge heat load by entering and exiting the heating furnace 11, and the work output by the expander 1 and the second expander 2 is provided to the compressor 3, the second compressor 10 and the external working power to form a heat recovery steam power device.

[0064] Figure 8 The heat recovery steam power plant shown is realized as follows:

[0065] (1) Structurally, Figure 1 In the heat recovery steam power device shown, a combustion chamber is added, and an external hydrogen channel is connected to the combustion chamber 13, and an external oxygen channel is connected to the combustion chamber 13. The steam channel of the solar thermal collection system 6 is divided into two paths, which is adjusted so that the solar thermal collection system 6 has a steam channel connected to the combustion chamber 13, and then the combustion chamber 13 has a steam channel divided into two paths. The condenser 7 is additionally provided with a condensed water pipeline connected to the outside.

[0066] (2) In terms of process, Figure 1Compared with the heat recovery steam power device shown in the figure, the difference is that: higher pressure hydrogen and oxygen enter the combustion chamber 13, and the hydrogen and oxygen burn to generate high-pressure and high-temperature steam; the steam discharged from the solar thermal collection system 6 enters the combustion chamber 13 to mix with the high-pressure and high-temperature steam, absorb heat and increase the temperature, and the steam discharged from the combustion chamber 13 is divided into two paths - the first path enters the expansion machine 1 to reduce the pressure and work, and the second path enters the second expansion machine 2 to reduce the pressure and work; the condensed water of the condenser 7 is divided into two paths - the first path is provided to the booster pump 4, and the second path is discharged to the outside; the increased hydrogen provides a driving heat load through the combustion chamber 13 to form a heat recovery steam power device.

[0067] Fig. 9 The heat recovery steam power plant shown is realized as follows:

[0068] (1) Structurally, Figure 1 In the heat recovery steam power device shown, a combustion chamber and a second compressor are added, an external hydrogen channel is connected to the combustion chamber 13, and an external oxygen channel is connected to the combustion chamber 13. The steam channel of the solar thermal collection system 6 is divided into two paths, which is adjusted so that the solar thermal collection system 6 has a steam channel connected to the combustion chamber 13 through the second compressor 10, and then the combustion chamber 13 has a steam channel divided into two paths. The condenser 7 is additionally provided with a condensate pipeline connected to the outside, and the expander 1 is connected to the second compressor 10 and transmits power.

[0069] (2) In terms of process, Figure 1 Compared with the heat recovery steam power device shown in the figure, the difference is that: higher pressure hydrogen and oxygen enter the combustion chamber 13, and the hydrogen and oxygen burn to generate high-pressure and high-temperature steam; the steam discharged from the solar thermal collection system 6 flows through the second compressor 10 to increase the pressure and temperature, and then enters the combustion chamber 13 to mix with the high-pressure and high-temperature steam, absorb heat and increase the temperature, and the steam discharged from the combustion chamber 13 is divided into two paths - the first path enters the expander 1 to reduce the pressure and work, and the second path enters the second expander 2 to reduce the pressure and work; the condensed water of the condenser 7 is divided into two paths - the first path is provided to the booster pump 4, and the second path is discharged to the outside; the increased hydrogen provides a driving heat load through the combustion chamber 13, and the work output by the expander 1 and the second expander 2 is provided to the compressor 3, the second compressor 10 and the external working force to form a heat recovery steam power device.

[0070] Fig.10 The heat recovery steam power plant shown is realized as follows:

[0071] exist Figure 1 In the heat recovery steam power plant shown, a nuclear reactor 14 is added and replaces the solar thermal collection system 6; the nuclear fuel provides a driving heat load through the nuclear reactor 14 to form a heat recovery steam power plant.

[0072] Fig.11 The heat recovery steam power plant shown is realized as follows:

[0073] (1) Structurally, Figure 1 In the heat recovery steam power plant shown, an expansion speed increasing machine 15 is added to replace the expansion machine 1, and a pressure diffuser 16 is added to replace the booster pump 4.

[0074] (2) In terms of the process, the condensate discharged from the condenser 7 flows through the diffuser 16 to reduce speed and increase pressure, flows through the regenerator 5 to absorb heat and increase temperature, and then enters the solar thermal collection system 6 to absorb heat and increase temperature. The steam discharged from the compressor 3 enters the solar thermal collection system 6 to absorb heat and increase temperature. The steam discharged from the solar thermal collection system 6 is divided into two paths: the first path enters the expansion speed increaser 15 to reduce pressure and work and speed up and enters the condenser 7 to release heat and condense, and the second path flows through the second expander 2 to reduce pressure and work, flows through the regenerator 5 to release heat and cool down, and enters the compressor 3 to increase pressure and temperature. Solar energy provides driving heat load through the solar thermal collection system 6, and the cooling medium takes away the low-temperature heat load through the condenser 7. The work output by the expansion speed increaser 15 and the second expander 2 is provided to the compressor 3 and the external working force, forming a heat recovery type steam power device.

[0075] Fig.12 The heat recovery steam power plant shown is realized as follows:

[0076] (1) Structurally, Figure 1 In the heat recovery steam power device shown, an expansion speed increaser 15 is added to replace the expansion machine 1, a pressure diffuser 16 is added to replace the booster pump 4, a second expansion speed increaser 17 is added to replace the second expansion machine 2, and a dual-energy compressor 18 is added to replace the compressor 3.

[0077] (2) In terms of the process, the condensate discharged from the condenser 7 flows through the diffuser 16 to reduce speed and increase pressure, flows through the regenerator 5 to absorb heat and increase temperature, and then enters the solar thermal collection system 6 to absorb heat and increase temperature. The steam discharged from the dual-energy compressor 18 enters the solar thermal collection system 6 to absorb heat and increase temperature; the steam discharged from the solar thermal collection system 6 is divided into two paths - the first path enters the expansion and speed-increasing machine 15 to reduce pressure, work and increase speed, and enters the condenser 7 to release heat and condense, and the second path flows through the second expansion and speed-increasing machine 17 to reduce pressure, work and increase speed, flows through the regenerator 5 to release heat and cool down, and enters the dual-energy compressor 18 to increase pressure, increase temperature and reduce speed; solar energy provides driving heat load through the solar thermal collection system 6, and the cooling medium takes away the low-temperature heat load through the condenser 7; the power output by the expansion and speed-increasing machine 15 and the second expansion and speed-increasing machine 17 is provided to the dual-energy compressor 18 and external working power, forming a heat recovery type steam power device.

[0078] Effects that can be achieved by the technology of the present invention: The heat recovery steam power device proposed by the present invention has the following effects and advantages:

[0079] (1) The driving heat load input link avoids the evaporation process of the circulating working fluid, the irreversible loss of temperature difference is small, and the thermal efficiency is significantly improved.

[0080] (2) Constant temperature achieves low-temperature heat load discharge, with small irreversible temperature loss and improved thermal efficiency.

[0081] (3) The heat recovery process is flexible, which is beneficial to reducing the irreversible loss of temperature difference in the heat recovery link and improving thermal efficiency.

[0082] (4) Relatively reduce the compressor boost ratio to alleviate the contradiction between flow rate, boost ratio, thermal efficiency, etc. during the steam compression process; or increase the average temperature during the heat absorption process under a certain boost ratio to improve thermal efficiency.

[0083] (5) The process is reasonable and the structure is simple, which significantly reduces the manufacturing cost of the steam power plant and improves the economy of the system.

[0084] (6) Providing a variety of specific technical solutions to cope with a variety of driving energy sources will help improve the level of rational energy utilization and expand the application scope and value of heat recovery steam power units.

Claims

1. A heat recovery steam power device, mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar thermal collection system and a condenser; the condenser (7) has a condensate pipeline connected to the regenerator (5) via the booster pump (4), and the regenerator (5) is further connected to the solar thermal collection system (6) via a steam channel; the compressor (3) has a steam channel connected to the solar thermal collection system (6); the solar thermal collection system (6) also has a steam channel divided into two paths - the first path is connected to the expander (1) and the second path is connected to the compressor (3) via the second expander (2) and the regenerator (5); the expander (1) also has a low-pressure steam channel connected to the condenser (7); the condenser (7) also has a cooling medium channel connected to the outside; the expander (1) and the second expander (2) are connected to the compressor (3) and transmit power, forming a heat recovery steam power device; wherein, Or the expander (1) and the second expander (2) are connected to the compressor (3) and the booster pump (4) to transmit power.

2. A heat recovery steam power device, mainly composed of an expander, a second expander, a compressor, a booster pump, a regenerator, a solar heat collection system, a condenser and a second regenerator; the condenser (7) has a condensate pipeline connected to the second regenerator (8) and the regenerator (5) via a booster pump (4), and the regenerator (5) further has a steam channel connected to the solar heat collection system (6); the compressor (3) has a steam channel connected to the solar heat collection system (6); the solar heat collection system (6) also has a steam channel divided into two paths - the first path is connected to the expander (1) and the second path is connected to the compressor (3) via the second expander (2) and the regenerator (5); the expander (1) also has a low-pressure steam channel connected to the condenser (7) via the second regenerator (8); the condenser (7) also has a cooling medium channel connected to the outside; the expander (1) and the second expander (2) are connected to the compressor (3) and transmit power, forming a heat recovery steam power device; wherein, Or the expander (1) and the second expander (2) are connected to the compressor (3) and the booster pump (4) to transmit power.

3. A heat recovery type steam power device is a heat recovery type steam power device as described in claim 1 or claim 2, wherein a heat source heat exchanger is added, the heat source heat exchanger (9) has a heat source medium channel connected to the outside, and the heat recovery device (5) and the compressor (3) have a steam channel connected to the solar thermal collection system (6) and are adjusted to have a steam channel connected to the solar thermal collection system (6) via the heat source heat exchanger (9), thereby forming a heat recovery type steam power device.

4. A heat recovery steam power device is a heat recovery steam power device as described in claim 1 or claim 2, wherein a heat source heat exchanger and a second compressor are added, the heat source heat exchanger (9) has a heat source medium channel connected to the outside, the heat recovery device (5) and the compressor (3) have a steam channel connected to the solar thermal collection system (6) and are adjusted to have a steam channel connected to the solar thermal collection system (6) through the heat source heat exchanger (9) and the second compressor (10), the expander (1) is connected to the second compressor (10) and transmits power, and a heat recovery steam power device is formed.

5. A heat recovery steam power device, which is a heat recovery steam power device as described in claim 1 or claim 2, wherein a heating furnace and a heat source regenerator are added, a fuel channel is externally connected to the heating furnace (11), an air channel is externally connected to the heating furnace (11) via the heat source regenerator (12), and the heating furnace (11) also has a gas channel connected to the outside via the heat source regenerator (12), and the steam channel connecting the regenerator (5) and the compressor (3) to the solar thermal collection system (6) is adjusted to the steam channel connecting the regenerator (5) and the compressor (3) to the solar thermal collection system (6) via the heating furnace (10), thereby forming a heat recovery steam power device.

6. A heat recovery steam power device is a heat recovery steam power device as described in claim 1 or claim 2, wherein a heating furnace and a heat source heat regenerator are added, a fuel channel is externally connected to the heating furnace (11), an air channel is externally connected to the heating furnace (11) via the heat source heat regenerator (12), and the heating furnace (11) also has a gas channel connected to the outside via the heat source heat regenerator (12), and the steam channel of the solar thermal collection system (6) is divided into two paths, and adjusted so that the steam channel of the solar thermal collection system (6) is divided into two paths after passing through the heating furnace (11), thereby forming a heat recovery steam power device.

7. A heat recovery steam power device is a heat recovery steam power device as described in claim 1 or claim 2, wherein a heating furnace, a heat source heat regenerator and a second compressor are added, an external fuel channel is connected to the heating furnace (11), an external air channel is connected to the heating furnace (11) through the heat source heat regenerator (12), and the heating furnace (11) also has a gas channel connected to the outside through the heat source heat regenerator (12), the steam channel of the solar thermal collection system (6) is divided into two paths, and the steam channel of the solar thermal collection system (6) is adjusted to be divided into two paths after passing through the second compressor (10) and the heating furnace (11), the expander (1) is connected to the second compressor (10) and transmits power, and a heat recovery steam power device is formed.

8. A heat recovery steam power device is a heat recovery steam power device as described in claim 1 or claim 2, wherein a combustion chamber is added, an external hydrogen channel is connected to the combustion chamber (13), and an external oxygen channel is connected to the combustion chamber (13). The steam channel of the solar thermal collection system (6) is divided into two paths, and the solar thermal collection system (6) is adjusted to have a steam channel connected to the combustion chamber (13), and then the combustion chamber (13) has a steam channel divided into two paths. The condenser (7) is additionally provided with a condensate pipeline connected to the outside to form a heat recovery steam power device.

9. A heat recovery steam power device is a heat recovery steam power device as described in claim 1 or claim 2, wherein a combustion chamber and a second compressor are added, an external hydrogen channel is connected to the combustion chamber (13), and an external oxygen channel is connected to the combustion chamber (13), and the steam channel of the solar thermal collection system (6) is divided into two paths, and the steam channel of the solar thermal collection system (6) is connected to the combustion chamber (13) through the second compressor (10), and then the steam channel of the combustion chamber (13) is divided into two paths, and the condenser (7) is additionally provided with a condensate pipeline connected to the outside, and the expander (1) is connected to the second compressor (10) and transmits power to form a heat recovery steam power device.

10. A heat recovery steam power device, which is a heat recovery steam power device according to any one of claims 1 to 5, wherein a nuclear reactor (14) is added and the solar thermal collection system (6) is replaced to form a heat recovery steam power device.

11. A heat recovery steam power device, which is a heat recovery steam power device according to any one of claims 1 to 11, wherein an expansion speed increaser (15) is added to replace the expansion machine (1), and a pressure diffuser (16) is added to replace the booster pump (4), so as to form a heat recovery steam power device.

12. A heat recovery steam power device, which is any one of the heat recovery steam power devices described in claims 1-11, by adding an expansion speed increaser (15) to replace the expansion machine (1), adding a diffuser (16) to replace the booster pump (4), adding a second expansion speed increaser (17) to replace the second expansion machine (2), and adding a dual-energy compressor (18) to replace the compressor (3), so as to form a heat recovery steam power device.

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