CN117759358A - Double heat source driving combined cycle power device - Google Patents

Abstract

The invention provides a double-heat source driving combined cycle power device, and belongs to the technical field of thermodynamics and thermokinetic. The outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through the heating furnace, and the expander is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

Description

Double heat source driving combined cycle power device

Technical field:

the invention belongs to the technical field of thermodynamics and thermal dynamics.

The background technology is as follows:

power requirements are common in human life and production, wherein the conversion of high-temperature heat energy into mechanical energy by a thermodynamic device is an important means for human to obtain power or electricity.

When the fuel is adopted to provide driving heat load for the gas-steam power device, the combustion process of the fuel forming a high-temperature heat source is limited by the reasons of working principles, material properties or equipment manufacturing level, and the like, the temperature difference between the combustion-supporting medium (such as air) temperature and the constant-pressure combustion temperature of the fuel is large, and the large temperature difference irreversible loss exists in the combustion process, so that the quality loss in fuel utilization is caused, however, the method provides a opportunity for the participation of high-temperature waste heat in the construction of the driving heat source.

In steel production, coking production, and other devices, the high temperature waste heat is a concomitant high temperature heat resource that can be partially converted into mechanical energy by steam power or other thermal power devices. However, in the technology of using high-temperature waste heat as driving heat energy of a thermal power device, there is a large irreversible loss of temperature difference in a system of converting heat energy into mechanical energy, or there is a large lifting space for the thermal power value of the high-temperature waste heat.

There is a need for simple, active, safe, efficient use of energy to obtain power. Therefore, the invention provides the double-heat source driving combined cycle power device which reasonably matches the high-temperature waste heat with the fuel to realize the complement of the advantages and the complementary advantages, greatly improves the heat efficiency of the high-temperature waste heat, remarkably improves the application value of the high-temperature waste heat and effectively reduces the fuel cost.

The invention comprises the following steps:

the invention mainly aims to provide a double-heat source driving combined cycle power device, and the specific invention is described in the following items:

1. the double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through the heating furnace, and the expander is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

2. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through a high-temperature regenerator and the heating furnace, and the expander is provided with a working medium channel which is communicated with the outside through the high-temperature regenerator and the heat source heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

3. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through the high-temperature regenerator and the heating furnace, and the expander is provided with a working medium channel which is communicated with the expander through the high-temperature regenerator after the working medium channel is communicated with the expander through the high-temperature regenerator, and the expander is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

4. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside has fuel channel to communicate with heating furnace, the outside has air channel to communicate with heating furnace through heat source regenerator and heat source heat exchanger, the heating furnace has fuel gas channel to communicate with outside through heat source regenerator, the outside has working medium channel to communicate with compressor, the compressor has working medium channel to communicate with oneself through the high-temperature regenerator again after communicating with compressor, the compressor has working medium channel to communicate with expander through heating furnace, the expander has working medium channel to communicate with outside through high-temperature regenerator and intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

5. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through heat source regenerator and heat source heat exchanger, the heating furnace has fuel gas channel and outside to communicate through heat source regenerator, the outside has working medium channel and compressor to communicate with oneself through the high-temperature regenerator after communicating, the compressor has working medium channel and expander to communicate with oneself through the high-temperature regenerator after communicating, the expander has working medium channel and oneself through the high-temperature regenerator again after communicating with expander, the expander has working medium channel to communicate with outside through the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

6. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expansion machine through the heat source heat exchanger and the heating furnace, and the expansion machine is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

7. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through a high-temperature regenerator, a heat source heat exchanger and the heating furnace, and the expander is provided with a working medium channel which is communicated with the outside through the high-temperature regenerator and the heat source heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

8. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expansion machine through the heat source heat exchanger, a high temperature regenerator and the heating furnace, and the expansion machine is provided with a working medium channel which is communicated with the outside through the high temperature regenerator and the temperature heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

9. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through the high-temperature regenerator, the heat source heat exchanger and the heating furnace, and the expander is provided with a working medium channel which is communicated with the expander through the high-temperature regenerator after the working medium channel is communicated with the expander through the high-temperature regenerator, and the expander is provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

10. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace, the outside is provided with an air channel which is communicated with the heating furnace through a heat source regenerator and a heat source heat exchanger, the heating furnace is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator, the outside is provided with a working medium channel which is communicated with the compressor, the compressor is provided with a working medium channel which is communicated with the expander through the heat source heat exchanger, a high temperature regenerator and the heating furnace, and the expander is provided with a working medium channel which is communicated with the expander through the high temperature regenerator after the working medium channel is communicated with the expander through an intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

11. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through heat source regenerator and heat source heat exchanger, the heating furnace has fuel gas channel and outside to communicate through heat source regenerator, the outside has working medium channel and compressor to communicate with oneself through the high-temperature regenerator after communicating, the compressor has working medium channel and heat source heat exchanger and heating furnace to communicate with expander, expander has working medium channel and outside to communicate through high-temperature regenerator and intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

12. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside has fuel channel and heating furnace to communicate, the outside has air channel and heating furnace to communicate through heat source regenerator and heat source heat exchanger, the heating furnace has fuel gas channel and outside to communicate through heat source regenerator, the outside has working medium channel and compressor to communicate with oneself through the high-temperature regenerator after communicating, the compressor has working medium channel and oneself to communicate through high-temperature regenerator again after communicating with expander through heat source heat exchanger and heating furnace, the expander has working medium channel and oneself to communicate through the high-temperature regenerator again after communicating with expander, the expander has working medium channel to communicate with outside through the intermediate heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the intermediate heat exchanger through a booster pump, the intermediate heat exchanger is further provided with a steam channel which is communicated with the steam turbine, and the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the expander is connected with the compressor and transmits power to form the double heat source driving combined cycle power device.

13. The dual-heat-source-driven combined cycle power plant according to any one of the 1 st to 12 th aspects is a dual-heat-source-driven combined cycle power plant, wherein the intermediate heat exchanger has a steam passage and is communicated with the steam turbine, and the intermediate heat exchanger has a steam passage and is communicated with the steam turbine through the heat source heat exchanger.

14. The dual-heat-source-driven combined cycle power plant according to any one of the 1 st to 12 th aspects is a dual-heat-source-driven combined cycle power plant, wherein the intermediate heat exchanger has a steam passage and is communicated with the steam turbine, and the steam turbine has a steam passage which is communicated with the steam turbine after the intermediate heat exchanger has a steam passage and is communicated with the steam turbine, and the steam turbine further has a steam passage which is communicated with itself through the heat source heat exchanger.

15. A double heat source driven combined cycle power plant is formed by adding a second booster pump and a low-temperature heat regenerator in any one of the double heat source driven combined cycle power plants of the 1-14 th, adjusting the communication of a condenser condensate pipe and the booster pump to the communication of the condenser condensate pipe and the low-temperature heat regenerator through the second booster pump, and arranging a steam extraction channel by a steam turbine to be communicated with the low-temperature heat regenerator, and communicating the low-temperature heat regenerator with the booster pump again to form the double heat source driven combined cycle power plant.

16. The double heat source driven combined cycle power plant is formed by adding an expansion speed-increasing turbine and replacing the turbine, adding a diffuser pipe and replacing a booster pump in any one of the double heat source driven combined cycle power plants of the 1 st to 14 th.

Description of the drawings:

FIG. 1 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention.

FIG. 2 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, principle 2.

FIG. 3 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, no. 3.

FIG. 4 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, no. 4.

FIG. 5 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention.

FIG. 6 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention.

FIG. 7 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 7 th principle.

FIG. 8 is a schematic thermodynamic system diagram of an 8 th principle of a dual heat source driven combined cycle power plant in accordance with the present invention.

FIG. 9 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 9 th principle.

FIG. 10 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 10 th principle.

FIG. 11 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 11 th principles.

FIG. 12 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention.

FIG. 13 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant 13 according to the present invention.

FIG. 14 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 14 th principles.

FIG. 15 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, at 15 th principle.

FIG. 16 is a schematic thermodynamic system diagram of a dual heat source driven combined cycle power plant according to the present invention, 16 th principle.

In the figure, a 1-turbine, a 2-booster pump, a 3-intermediate heat exchanger, a 4-condenser, a 5-compressor, a 6-expander, a 7-heat source heat exchanger, an 8-heating furnace, a 9-heat source regenerator, a 10-high temperature regenerator, a 11-second booster pump, a 12-low temperature regenerator, a 13-expansion speed-increasing turbine and a 14-diffusion pipe are arranged.

The specific embodiment is as follows:

it is to be noted that the description of the structure and the flow is not repeated if necessary; obvious procedures are not described. The invention is described in detail below with reference to the drawings and examples.

The dual heat source driven combined cycle power plant shown in fig. 1 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expander 6 through the heating furnace 8, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In the flow, the external air flows through the heat source regenerator 9 and the heat source heat exchanger 7 to absorb heat gradually and raise temperature, and then enters the heating furnace 8; the external fuel enters the heating furnace 8, is mixed with air from the heat source heat exchanger 7 and is combusted to generate high-temperature fuel gas, the fuel gas releases heat in a working medium flowing through the fuel gas, and then the fuel gas releases heat and cools through the heat source regenerator 9 and is discharged outwards; the external working medium is boosted and heated through the compressor 5, absorbs heat and heats through the heating furnace 8, is depressurized and works through the expander 6, releases heat and cools through the intermediate heat exchanger 3, and is discharged outwards; the condensate of the condenser 4 is boosted by the booster pump 2, is subjected to heat absorption, temperature rise and vaporization by the intermediate heat exchanger 3, then enters the steam turbine 1 to be subjected to pressure reduction and work, and low-pressure steam discharged by the steam turbine 1 enters the condenser 4 to be subjected to heat release and condensation; the heat source medium provides driving heat load through the heat source heat exchanger 7, the fuel provides driving heat load through the heating furnace 8, the cooling medium takes away low-temperature heat load through the condenser 4, the air and the fuel gas take away a little low-temperature heat load through the in-out flow, and the working medium takes away low-temperature heat load through the in-out flow; the work output by the turbine 1 and the expander 6 is provided for the compressor 5 and the external power, or the work output by the turbine 1 and the expander 6 is provided for the booster pump 2, the compressor 5 and the external power, so that the double heat source driving combined cycle power device is formed.

The dual heat source driven combined cycle power plant shown in fig. 2 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expansion machine 6 through the high temperature regenerator 10 and the heating furnace 8, and the expansion machine 6 is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator 10 and the temperature heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated by the compressor 5, gradually absorbs heat and heats by the high-temperature heat regenerator 10 and the heating furnace 8, reduces pressure and works by the expander 6, gradually releases heat and reduces temperature by the high-temperature heat regenerator 10 and the intermediate heat exchanger 3, and is discharged to the outside to form the double-heat source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 3 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expansion machine 6 through the high temperature regenerator 10 and the heating furnace 8, the expansion machine 6 is also provided with a working medium channel which is communicated with the expansion machine through the high temperature regenerator 10, and the expansion machine 6 is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated by the compressor 5, gradually absorbs heat and heats by the high-temperature heat regenerator 10 and the heating furnace 8, enters the expander 6 to perform depressurization and work to a certain extent, then flows through the high-temperature heat regenerator 10 to perform heat release and cooling, and then enters the expander 6 to perform continuous depressurization and work; the working medium discharged by the expander 6 flows through the intermediate heat exchanger 3 to release heat and cool, and then is discharged to the outside to form the double heat source driving combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 4 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5 after being communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the compressor through the high-temperature regenerator 10, the heating furnace 8 is also provided with a heating furnace 8 which is communicated with the expander 6, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the high-temperature regenerator 10 and the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 10 to absorb heat and heat, and then enters the compressor 5 to be boosted and heated continuously; the working medium discharged by the compressor 5 absorbs heat and heats up through the heating furnace 8, reduces pressure and works through the expansion machine 6, releases heat and reduces temperature gradually through the high-temperature heat regenerator 10 and the intermediate heat exchanger 3, and is discharged outwards to form the double-heat-source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 5 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside has fuel channel and heating furnace 8 to communicate, the outside has air channel and heating furnace 8 to communicate through heat source regenerator 9 and heat source heat exchanger 7, heating furnace 8 also has fuel gas channel and outside to communicate through heat source regenerator 9, after the outside has working medium channel and compressor 5 to communicate, the compressor 5 has working medium channel and oneself to communicate through the high-temperature regenerator 10 again, the compressor 5 also has working medium channel and expander 6 after the heating furnace 8 communicates with expander 6 again to communicate with oneself through the high-temperature regenerator 10 again, expander 6 also has working medium channel and outside to communicate through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 10 to absorb heat and then enters the compressor 5 to be boosted and heated continuously; the working medium discharged by the compressor 5 is heated by heat absorption through the heating furnace 8, enters the expander 6 to perform decompression and work to a certain extent, then flows through the high-temperature regenerator 10 to release heat and cool, and then enters the expander 6 to continue decompression and work; the working medium discharged by the expander 6 flows through the intermediate heat exchanger 3 to release heat and cool, and then is discharged to the outside to form the double heat source driving combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 6 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is provided with an air channel which is communicated with the heating furnace 8 through a heat source regenerator 9 and a heat source heat exchanger 7, the heating furnace 8 is provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is provided with a working medium channel which is communicated with the expander 6 through the heat source heat exchanger 7 and the heating furnace 8, and the expander 6 is provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated by the compressor 5, gradually absorbs heat and heats by the heat source heat exchanger 7 and the heating furnace 8, reduces pressure and works by the expander 6, releases heat and reduces temperature by the intermediate heat exchanger 3, and is discharged to the outside to form the double-heat source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 7 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expander 6 through the high temperature regenerator 10, the heat source heat exchanger 7 and the heating furnace 8, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator 10 and the temperature heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated by the compressor 5, gradually absorbs heat and heats by the high-temperature heat regenerator 10, the heat source heat exchanger 7 and the heating furnace 8, reduces pressure and works by the expander 6, gradually releases heat and reduces temperature by the high-temperature heat regenerator 10 and the intermediate heat exchanger 3, and is discharged to the outside to form the double-heat source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 8 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expansion machine 6 through the heat source heat exchanger 7, the high temperature regenerator 10 and the heating furnace 8, and the expansion machine 6 is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator 10 and the temperature heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated through the compressor 5, gradually absorbs heat and heats through the heat source heat exchanger 7, the high-temperature heat regenerator 10 and the heating furnace 8, reduces pressure and works through the expander 6, gradually releases heat and reduces temperature through the high-temperature heat regenerator 10 and the intermediate heat exchanger 3, and is discharged outwards to form the double-heat source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 9 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expander 6 through the high-temperature regenerator 10, the heat source heat exchanger 7 and the heating furnace 8, then the expander 6 is also provided with a working medium channel which is communicated with the expander through the high-temperature regenerator 10, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated through the compressor 5, gradually absorbs heat and heats through the high-temperature heat regenerator 10, the heat source heat exchanger 7 and the heating furnace 8, enters the expander 6 to perform depressurization and work to a certain extent, then releases heat and cools through the high-temperature heat regenerator 10, and then enters the expander 6 to continue depressurization and work; the working medium discharged by the expander 6 flows through the intermediate heat exchanger 3 to release heat and cool, and then is discharged to the outside to form the double heat source driving combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 10 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5, the compressor 5 is also provided with a working medium channel which is communicated with the expander 6 through the heat source heat exchanger 7, the high temperature regenerator 10 and the heating furnace 8, then the expander 6 is also provided with a working medium channel which is communicated with the expander through the high temperature regenerator 10, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium is boosted and heated through the compressor 5, gradually absorbs heat and heats through the heat source heat exchanger 7, the high-temperature heat regenerator 10 and the heating furnace 8, enters the expander 6 to perform depressurization and work to a certain extent, then releases heat and cools through the high-temperature heat regenerator 10, and then enters the expander 6 to continue depressurization and work; the working medium discharged by the expander 6 flows through the intermediate heat exchanger 3 to release heat and cool, and then is discharged to the outside to form the double heat source driving combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 11 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside has fuel channel and heating furnace 8 to communicate, the outside has air channel and heating furnace 8 to communicate through heat source regenerator 9 and heat source heat exchanger 7, heating furnace 8 also has fuel gas channel and outside to communicate through heat source regenerator 9, after the outside has working medium channel and compressor 5 to communicate, the compressor 5 has working medium channel and oneself to communicate through the high-temperature regenerator 10 again, the compressor 5 also has working medium channel and expander 6 to communicate through heat source heat exchanger 7 and heating furnace 8, expander 6 also has working medium channel and outside to communicate through the high-temperature regenerator 10 and intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 10 to absorb heat and then enters the compressor 5 to be boosted and heated continuously; working medium discharged by the compressor 5 is subjected to gradual heat absorption and temperature rise through the heat source heat exchanger 7 and the heating furnace 8, reduced in pressure and work through the expander 6, gradually released in heat and cooled through the high-temperature heat regenerator 10 and the intermediate heat exchanger 3, and then discharged outwards to form the double-heat source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 12 is implemented as follows:

(1) Structurally, the device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high-temperature regenerator; the outside is provided with a fuel channel which is communicated with the heating furnace 8, the outside is also provided with an air channel which is communicated with the heating furnace 8 through the heat source regenerator 9 and the heat source heat exchanger 7, the heating furnace 8 is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator 9, the outside is provided with a working medium channel which is communicated with the compressor 5 through the high-temperature regenerator 10, the compressor 5 is also provided with a working medium channel which is communicated with the compressor through the high-temperature regenerator 10, the compressor 5 is also provided with a working medium channel which is communicated with the expander 6 through the heat source heat exchanger 7 and the heating furnace 8, and the expander 6 is also provided with a working medium channel which is communicated with the expander 6 through the high-temperature regenerator 10, and the expander 6 is also provided with a working medium channel which is communicated with the outside through the intermediate heat exchanger 3; the condenser 4 is provided with a condensate pipeline which is communicated with the intermediate heat exchanger 3 through the booster pump 2, the intermediate heat exchanger 3 is further provided with a steam channel which is communicated with the steam turbine 1, and the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4; the condenser 4 is also provided with a cooling medium passage communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium passage communicated with the outside, and the expander 6 is connected with the compressor 5 and transmits power.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the external working medium enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 10 to absorb heat and then enters the compressor 5 to be boosted and heated continuously; working medium discharged by the compressor 5 is subjected to gradual heat absorption and temperature rise through the heat source heat exchanger 7 and the heating furnace 8, enters the expander 6 to perform depressurization and work to a certain extent, then flows through the high-temperature regenerator 10 to perform heat release and temperature reduction, and then enters the expander 6 to continue depressurization and work; the working medium discharged by the expander 6 is gradually released and cooled through the intermediate heat exchanger 3, and then is discharged outwards to form the double-heat-source driven combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 13 is implemented as follows:

(1) In the double heat source driven combined cycle power plant shown in fig. 1, the communication between the intermediate heat exchanger 3 and the steam turbine 1 is adjusted so that the intermediate heat exchanger 3 has a steam passage and the steam turbine 1 communicates with each other through the heat source heat exchanger 7.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the steam discharged by the intermediate heat exchanger 3 flows through the heat source heat exchanger 7 to absorb heat and raise temperature, and then enters the steam turbine 1 to reduce pressure and do work, so as to form the double heat source driving combined cycle power device.

The dual heat source driven combined cycle power plant shown in fig. 14 is implemented as follows:

(1) In the double heat source driven combined cycle power plant shown in fig. 1, the communication between the intermediate heat exchanger 3 and the steam turbine 1 is adjusted so that the steam channel of the intermediate heat exchanger 3 is communicated with the steam turbine 1, and then the steam channel of the steam turbine 1 is communicated with the steam turbine itself through the heat source heat exchanger 7.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the steam discharged by the intermediate heat exchanger 3 enters the steam turbine 1 to perform depressurization and work, after reaching a certain degree, the steam flows through the heat source heat exchanger 7 to absorb heat and raise temperature, and then enters the steam turbine 1 to continue depressurization and work, so that the double-heat source driven combined cycle power device is formed.

The dual heat source driven combined cycle power plant shown in fig. 15 is implemented as follows:

(1) In the structure, in the double heat source driving combined cycle power device shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, a condensate pipe of the condenser 4 is communicated with the booster pump 2, the condensate pipe of the condenser 4 is communicated with the low-temperature heat regenerator 12 through the second booster pump 11, a steam turbine 1 is provided with a steam extraction channel and is communicated with the low-temperature heat regenerator 12, and the low-temperature heat regenerator 12 is communicated with the booster pump 2.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: the condensate discharged by the condenser 4 flows through the second booster pump 11 to be boosted and then enters the low-temperature regenerator 12 to be mixed with the extracted steam from the steam turbine 1, absorbs heat and heats up, and the extracted steam is released to form condensate; condensate of the low-temperature heat regenerator 12 is boosted by the booster pump 2, is subjected to heat absorption, temperature rise, vaporization and overheating by the intermediate heat exchanger 3, and then enters the steam turbine 1 to be subjected to pressure reduction and work; the steam entering the steam turbine 1 is reduced in pressure and works to a certain extent and then is divided into two paths, wherein the first path is provided for the low-temperature heat regenerator 12, and the second path is used for continuously reducing pressure and working and then enters the condenser 4 for heat release and condensation, so that a double-heat source driven combined cycle power device is formed.

The dual heat source driven combined cycle power plant shown in fig. 16 is implemented as follows:

(1) In the double heat source driving combined cycle power plant shown in fig. 1, an expansion speed increasing turbine 13 is added to replace the turbine 1, and a diffuser pipe 14 is added to replace the booster pump 2.

(2) In flow, compared with the dual heat source driven combined cycle power plant shown in fig. 1, the difference is that: condensate of the condenser 4 is subjected to speed reduction and pressure increase through a diffuser pipe 14, is subjected to heat absorption, temperature rise and vaporization through an intermediate heat exchanger 3, is subjected to pressure reduction, work and speed increase through an expansion speed-increasing turbine 13, and then enters the condenser 4 to release heat and be condensed; work output by the expansion machine 6 and the expansion speed increaser 13 is provided for the compressor 5 and external acting force to form a double heat source driving combined cycle power device.

The double heat source driving combined cycle power device provided by the invention has the following effects and advantages:

(1) The high-temperature heat resource and the fuel are reasonably matched, the fuel effect is exerted by the high-temperature heat resource, and the utilization value of the high-temperature heat resource converted into mechanical energy is greatly improved.

(2) The high-temperature driving heat load realizes graded utilization, obviously reduces irreversible loss of temperature difference and effectively improves heat change work efficiency.

(3) The high-temperature heat resource provides a working medium to drive the heat load, so that the irreversible loss of the temperature difference in the fuel combustion process is effectively reduced.

(4) The deep utilization of high-temperature heat resources is realized, and the utilization efficiency of energy sources/high-temperature waste heat is effectively improved.

(5) The high-temperature heat resource can be used for/is beneficial to reducing the compression ratio of a top circulation system, improving the flow of a gas circulation working medium and increasing the load of the power device.

(6) The range of the driving heat source used by the gas-steam combined cycle power plant is effectively expanded, and the energy consumption cost of the plant is reduced.

(7) The fuel utilization value is improved, the emission of greenhouse gases is reduced, the emission of pollutants is reduced, and the energy conservation and emission reduction benefits are outstanding.

(8) Simple structure, reasonable flow, and provides a plurality of specific technical schemes, which is beneficial to reducing the manufacturing cost of the device and expanding the application range of the technology.

Claims (16)

1. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through the heating furnace (8), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

2. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through a high-temperature regenerator (10) and the heating furnace (8), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through the high-temperature regenerator (10) and the heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

3. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through a high-temperature regenerator (10) and the heating furnace (8), and then the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through the high-temperature regenerator (10), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

4. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5) after being communicated with the compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through the heating furnace (8), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator (10) and an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

5. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5) after the working medium channel is communicated with the compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through the heating furnace (8), the expansion machine (6) is also provided with a working medium channel which is communicated with the expansion machine through the high temperature regenerator (10), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

6. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace and a heat source regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expander (6) through the heat source heat exchanger (7) and the heating furnace (8), and the expander (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

7. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expander (6) through a high-temperature regenerator (10), the heat source heat exchanger (7) and the heating furnace (8), and the expander (6) is also provided with a working medium channel which is communicated with the outside through the high-temperature regenerator (10) and the temperature heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

8. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expansion machine (6) through the heat source heat exchanger (7), a high temperature regenerator (10) and the heating furnace (8), and the expansion machine (6) is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator (10) and the temperature heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

9. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expander (6) through a high-temperature regenerator (10), the heat source heat exchanger (7) and the heating furnace (8), then the expander (6) is also provided with a working medium channel which is communicated with the outside through the high-temperature regenerator (10), and the expander (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

10. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with an expander (6) through the heat source heat exchanger (7), a high temperature regenerator (10) and the heating furnace (8), then the expander (6) is also provided with a working medium channel which is communicated with the outside through the high temperature regenerator (10), and the expander (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

11. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5) after being communicated with the compressor (5), the compressor (5) is also provided with a working medium channel which is communicated with the compressor by a high-temperature heat regenerator (10), the compressor (5) is also provided with a working medium channel which is communicated with an expander (6) through the heat source heat exchanger (7) and the heating furnace (8), and the expander (6) is also provided with a working medium channel which is communicated with the outside through the high-temperature heat regenerator (10) and an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

12. The double heat source driving combined cycle power device mainly comprises a steam turbine, a booster pump, an intermediate heat exchanger, a condenser, a compressor, an expander, a heat source heat exchanger, a heating furnace, a heat source regenerator and a high temperature regenerator; the outside is provided with a fuel channel which is communicated with a heating furnace (8), the outside is also provided with an air channel which is communicated with the heating furnace (8) through a heat source regenerator (9) and a heat source heat exchanger (7), the heating furnace (8) is also provided with a fuel gas channel which is communicated with the outside through the heat source regenerator (9), the outside is provided with a working medium channel which is communicated with a compressor (5) through a high-temperature heat regenerator (10), the compressor (5) is also provided with a working medium channel which is communicated with the compressor through a high-temperature heat exchanger (10), the expander (6) is also provided with a working medium channel which is communicated with the expander (6) through the high-temperature heat regenerator (10), and the expander (6) is also provided with a working medium channel which is communicated with the outside through an intermediate heat exchanger (3); the condenser (4) is provided with a condensate pipeline which is communicated with the intermediate heat exchanger (3) through the booster pump (2), the intermediate heat exchanger (3) is further provided with a steam channel which is communicated with the steam turbine (1), and the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4); the condenser (4) is also communicated with the outside through a cooling medium channel, the heat source heat exchanger (7) is also communicated with the outside through a heat source medium channel, and the expander (6) is connected with the compressor (5) and transmits power to form the double heat source driving combined cycle power device.

13. In the double heat source driven combined cycle power plant, in any one of claims 1-12, the communication of the steam channel of the intermediate heat exchanger (3) and the steam turbine (1) is adjusted to be that the steam channel of the intermediate heat exchanger (3) is communicated with the steam turbine (1) through the heat source heat exchanger (7), so as to form the double heat source driven combined cycle power plant.

14. In the double heat source driven combined cycle power plant, in any one of claims 1-12, the communication between the steam channel of the intermediate heat exchanger (3) and the steam turbine (1) is adjusted to be that after the steam channel of the intermediate heat exchanger (3) is communicated with the steam turbine (1), the steam channel of the steam turbine (1) is communicated with the steam turbine through the heat source heat exchanger (7) so as to form the double heat source driven combined cycle power plant.

15. A double heat source driven combined cycle power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the double heat source driven combined cycle power devices in claims 1-14, a condensate pipe of a condenser (4) is communicated with the booster pump (2) and is adjusted to be communicated with the low-temperature heat regenerator (12) through the second booster pump (11), a steam turbine (1) is provided with a steam extraction channel and is communicated with the low-temperature heat regenerator (12), and a condensate pipe of the low-temperature heat regenerator (12) is communicated with the booster pump (2) to form the double heat source driven combined cycle power device.

16. The double heat source driving combined cycle power device is formed by adding an expansion speed-increasing turbine (13) to replace a turbine (1), adding a diffuser pipe (14) to replace a booster pump (2) in any one of the double heat source driving combined cycle power devices in claims 1-14.