CN115387905A - Multi-fuel gas turbine apparatus - Google Patents

Abstract

The invention provides a multi-fuel gas turbine device, and belongs to the technical field of thermodynamics and thermodynamics. The external part of the multi-fuel gas turbine is communicated with a heating furnace by low-grade fuel, the external part of the multi-fuel gas turbine is communicated with the heating furnace by an air channel through a heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with the heating furnace by medium-grade fuel, the external part of the multi-fuel gas turbine is communicated with the second heating furnace by a second heat source heat regenerator, the second heating furnace is also communicated with the external part of the multi-fuel gas turbine by a gas channel through a second heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with a compressor, the compressor is also communicated with a combustion chamber by the heating furnace and the second heating furnace, the external part of the multi-fuel gas turbine is also communicated with the combustion chamber by a high-grade fuel channel, the combustion chamber is also communicated with a gas turbine, and the gas turbine is also communicated with the external part of the multi-fuel gas turbine by a compressor and transmits power.

Description

Multi-fuel gas turbine apparatus

The technical field is as follows:

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

The background art comprises the following steps:

the power demand is common to human life and production, the conversion of heat energy formed by fuel combustion into mechanical energy is an important way for obtaining and providing power, and reasonable thermodynamic cycle and driving heat source are needed for realizing high-efficiency heat power change.

The fuel is an important option for constructing a high-temperature heat source, and as for the actual existing fuel, the fuel has more varieties of coal gangue, biomass fuel, power coal, methane, natural gas and the like, and has different properties and characteristics; wherein, the temperature of the fuel gas formed by the fuel combustion directly determines the heat power conversion efficiency. Limited by one or more factors such as working principle, working medium property, material property, component and device manufacturing level, and the like, in the traditional thermal power device adopting high-grade fuel, the combustion process has large irreversible loss due to temperature difference, which provides opportunities for medium-grade fuel and low-grade fuel to participate in constructing heat sources.

The invention provides a multi-fuel gas turbine device which reasonably matches and uses low-grade fuel, medium-grade fuel and high-grade fuel, realizes the complementation of advantages and shortages, improves the utilization value of various fuels and effectively reduces the fuel cost.

The invention content is as follows:

the invention is primarily intended to provide a multi-fuel gas turbine plant, the specific inventive content being set forth in the following paragraphs:

1. the multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator and a second heat source heat regenerator; the external part of the multi-fuel gas turbine is communicated with a heating furnace by low-grade fuel, the external part of the multi-fuel gas turbine is communicated with the heating furnace by an air channel through a heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with the heating furnace by medium-grade fuel, the external part of the multi-fuel gas turbine is communicated with the second heating furnace by a second heat source heat regenerator, the second heating furnace is also communicated with the external part of the multi-fuel gas turbine by a gas channel through a second heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with a compressor, the compressor is also communicated with a combustion chamber by the heating furnace and the second heating furnace, the external part of the multi-fuel gas turbine is also communicated with the combustion chamber by a high-grade fuel channel, the combustion chamber is also communicated with a gas turbine, and the gas turbine is also communicated with the external part of the multi-fuel gas turbine by a compressor and transmits power.

2. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the heating furnace is communicated with a heating furnace by low-grade fuel, the external part of the heating furnace is communicated with the heating furnace by an air channel through a heat source heat regenerator, the external part of the heating furnace is communicated with a second heating furnace by medium-grade fuel, the external part of the heating furnace is communicated with the second heating furnace by the second heat source heat regenerator, the second heating furnace is also communicated with the external part of the heating furnace by a gas channel through the second heat source heat regenerator, the external part of the heating furnace is communicated with a compressor, the compressor is also communicated with a combustion chamber by the air channel through the heat regenerator, the heating furnace and the second heating furnace, the external part of the heating furnace is also communicated with a combustion chamber by a high-grade fuel channel, the combustion chamber is also communicated with a gas turbine, the gas turbine is also communicated with the external part of the combustion turbine by the heat regenerator, and the gas turbine is connected with the compressor and transmits power to form the multi-fuel gas turbine device.

3. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the heating furnace is communicated with a heating furnace by low-grade fuel, the external part of the heating furnace is communicated with the heating furnace by an air channel through a heat source heat regenerator, the external part of the heating furnace is communicated with a second heating furnace by medium-grade fuel, the external part of the heating furnace is communicated with the second heating furnace by the second heat source heat regenerator, the second heating furnace is also communicated with the external part of the heating furnace by a gas channel through the second heat source heat regenerator, the external part of the heating furnace is communicated with a compressor, the compressor is also communicated with a combustion chamber by the heating furnace, the heat regenerator and the second heating furnace, the external part of the heating furnace is also communicated with a high-grade fuel channel, the combustion chamber is also communicated with a gas turbine, the gas turbine is also communicated with the external part by the heat regenerator, and the gas turbine is connected with the compressor and transmits power to form the multi-fuel gas turbine device.

4. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is provided with low-grade fuel which is communicated with the heating furnace, the external part is also provided with an air channel which is communicated with the heating furnace through a heat source heat regenerator, the heating furnace is also provided with a fuel gas channel which is communicated with the external part through the heat source heat regenerator, the external part is provided with medium-grade fuel which is communicated with a second heating furnace, the external part is also provided with an air channel which is communicated with the external part through the second heat source heat regenerator, the compressor is also provided with an air channel which is communicated with the compressor through the heating furnace, the second heating furnace and the heat regenerator, the external part is also provided with a high-grade fuel channel which is communicated with a combustion chamber, the combustion chamber is also provided with a fuel gas channel which is communicated with a gas turbine, the gas turbine is also provided with the external part through the heat regenerator, and the gas turbine is connected with the compressor and transmits power, thus forming the multi-fuel gas turbine device.

5. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the multi-fuel gas turbine is communicated with the heating furnace by low-grade fuel, the external part of the multi-fuel gas turbine is communicated with the heating furnace by an air channel through a heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with the heating furnace by medium-grade fuel, the external part of the multi-fuel gas turbine is communicated with the second heating furnace by a second heat source heat regenerator, the second heating furnace is also communicated with the external part of the multi-fuel gas turbine by a gas channel through a second heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with a compressor, the compressor is also communicated with a combustion chamber by the air channel through the heat regenerator, the heating furnace and the second heating furnace, the external part of the multi-fuel gas turbine is also communicated with the combustion chamber by a high-grade fuel channel, the combustion chamber is also communicated with the gas turbine by the heat regenerator after the gas channel is communicated with the gas turbine, and the gas turbine is communicated with the external part, and the gas turbine is connected with the compressor and transmits power, so as to form the multi-fuel gas turbine device.

6. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is provided with low-grade fuel to be communicated with the heating furnace, the external part is also provided with an air channel to be communicated with the heating furnace through a heat source heat regenerator, the heating furnace is also provided with a gas channel to be communicated with the external part through the heat source heat regenerator, the external part is provided with medium-grade fuel to be communicated with a second heating furnace, the external part is also provided with an air channel to be communicated with the external part through the second heat source heat regenerator, the compressor is also provided with an air channel to be communicated with the combustion chamber through the heating furnace, the heat regenerator and the second heating furnace, the external part is also provided with a high-grade fuel channel to be communicated with the combustion chamber, the combustion chamber is also provided with a gas turbine to be communicated with the combustion chamber through the heat regenerator after the gas channel is communicated with the gas turbine, the gas turbine is also provided with a gas channel to be communicated with the external part, and the gas turbine is connected with the compressor and transmits power to form the multi-fuel gas turbine device.

7. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with the heating furnace by low-grade fuel, the external part is also communicated with the heating furnace by an air channel through a heat source heat regenerator, the heating furnace is also communicated with the external part by a fuel gas channel through the heat source heat regenerator, the external part is communicated with the second heating furnace by medium-grade fuel, the external part is also communicated with the second heating furnace by the second heat source heat regenerator, the second heating furnace is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator, the external part is communicated with a compressor, the compressor is also communicated with a combustion chamber by the heating furnace, the second heating furnace and the heat regenerator, the external part is also communicated with a high-grade fuel channel and the combustion chamber, the combustion chamber is also communicated with the fuel gas turbine by the heat regenerator after the fuel gas channel is communicated with the fuel gas turbine, the fuel gas turbine is also communicated with the external part, and the fuel gas turbine is connected with the compressor and transmits power, and the multi-fuel gas turbine device is formed.

8. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with the heating furnace by low-grade fuel, the external part is also communicated with the heating furnace by an air channel through a heat source heat regenerator, the heating furnace is also communicated with the external part by a fuel gas channel through the heat source heat regenerator, the external part is communicated with the second heating furnace by medium-grade fuel, the external part is also communicated with the second heating furnace by the second heat source heat regenerator, the second heating furnace is also communicated with the external part by the fuel gas channel through the second heat source heat regenerator, the external part is communicated with the compressor by the air channel after being communicated with the compressor and then communicated with the compressor by the heat regenerator, the compressor is also communicated with a combustion chamber by the heating furnace and the second heating furnace, the external part is also communicated with a combustion chamber by a high-grade fuel channel, the combustion chamber is also communicated with a fuel gas channel and a gas turbine, the gas turbine is also communicated with the external part by the heat regenerator, and the gas turbine is connected with the compressor and transmits power, and the multi-fuel gas turbine device is formed.

9. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the multi-fuel gas turbine is communicated with the heating furnace by a low-grade fuel, the external part of the multi-fuel gas turbine is communicated with the heating furnace by a heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with the heating furnace by a medium-grade fuel, the external part of the multi-fuel gas turbine is communicated with the heating furnace by a second heat source heat regenerator, the heating furnace is also communicated with the external part of the multi-fuel gas turbine by a gas channel by a second heat source heat regenerator, the external part of the multi-fuel gas turbine is communicated with the second heating furnace by a medium-grade fuel, the external part of the multi-fuel gas turbine is also communicated with the combustion chamber by a second heat source heat regenerator, the compressor is further communicated with the combustion chamber by a heat regenerator after the external part of the multi-fuel gas channel is communicated with the compressor, the compressor is further communicated with the combustion chamber by the heating furnace and the second heating furnace, and the external part of the compressor are also connected with the gas channel by the gas turbine, and power is transmitted by the gas turbine, and the multi-fuel gas turbine device is formed.

10. A multi-fuel gas turbine device is characterized in that in any one multi-fuel gas turbine device in items 1-9, a second heat source heat regenerator is cancelled, and a gas channel of a second heating furnace is communicated with the outside through the second heat source heat regenerator to adjust that the gas channel of the second heating furnace is communicated with the outside through the heat source heat regenerator; an external air channel is communicated with the heating furnace through a heat source heat regenerator, and an external air channel is communicated with the second heating furnace through a second heat source heat regenerator, and the external air channel and the second heating furnace are adjusted together to be divided into two paths after passing through the heat source heat regenerator, wherein the first path is communicated with the heating furnace and the second path is communicated with the second heating furnace, so that the multi-fuel gas turbine device is formed.

Description of the drawings:

FIG. 1 is a schematic 1 st thermodynamic system diagram of a multi-fuel gas turbine plant according to the present invention.

FIG. 2 is a schematic thermodynamic system diagram of a 2 nd principle of a multi-fuel gas turbine plant provided in accordance with the present invention.

FIG. 3 is a schematic 3 rd thermodynamic system diagram of a multi-fuel gas turbine plant according to the present invention.

FIG. 4 is a diagram of a 4 th principle thermodynamic system for a multi-fuel gas turbine plant according to the present invention.

FIG. 5 is a schematic thermodynamic system diagram of the 5 th principle of a multi-fuel gas turbine plant provided in accordance with the present invention.

FIG. 6 is a schematic illustration of a principal 6 th thermodynamic system for a multi-fuel gas turbine plant according to the present invention.

FIG. 7 is a 7 th principle thermodynamic system diagram of a multi-fuel gas turbine plant provided in accordance with the present invention.

FIG. 8 is a diagram of an 8 th principle thermodynamic system for a multi-fuel gas turbine plant according to the present invention.

FIG. 9 is a diagram of a 9 th principal thermodynamic system for a multi-fuel gas turbine plant provided in accordance with the present invention.

FIG. 10 is a 10 th principal thermodynamic system diagram of a multi-fuel gas turbine plant provided in accordance with the present invention.

In the figure, 1-compressor, 2-gas turbine, 3-heating furnace, 4-second heating furnace, 5-combustion chamber, 6-heat source heat regenerator, 7-second heat source heat regenerator and 8-heat regenerator.

With respect to low-grade, medium-grade and high-grade fuels, a brief description is given here:

(1) Low-grade fuel: refers to a fuel in which the highest temperature at which combustion products can form (such as adiabatic combustion temperature or fixed pressure combustion temperature) is relatively low; compared with high-quality coal, coal gangue, coal slime, combustible garbage and the like are low-grade fuels. From the concept of heat source, low grade fuel refers to fuel whose combustion products are difficult to form a high temperature heat source of higher temperature.

(2) High-grade fuel: refers to a fuel in which the highest temperature at which combustion products can form (such as adiabatic combustion temperature or fixed pressure combustion temperature) is relatively high; compared with fuels such as coal gangue and coal slime, high-quality coal, natural gas, methane, hydrogen and the like are high-grade fuels. From the concept of heat source, high grade fuel refers to fuel whose combustion products can form a higher temperature heat source.

(3) The grade of the fuel is divided by the highest temperature formed by combustion products minus the temperature difference of indirect heat transfer, especially for the fuel which needs to provide driving high-temperature heat load to the circulating working medium by indirect means; or, the temperature that the circulating working medium can reach is divided according to the temperature that the circulating working medium can reach under the existing technical conditions, namely the one with higher temperature that the circulating working medium (working medium) can reach is the high-grade fuel, and the one with lower temperature that the circulating working medium (working medium) can reach is the low-grade fuel.

(4) Medium grade fuel: refers to a fuel that has a combustion product that can form at a maximum temperature that is between the maximum temperature that can be formed by the combustion products of a high-grade fuel and a low-grade fuel. For example, in terms of coal gangue, common power coal and natural gas, the coal gangue, the common power coal and the natural gas are low-grade fuel, medium-grade fuel and high-grade fuel in sequence.

(5) For solid fuels, the gaseous substances of the combustion products are the core of the heat source and are important components of the thermodynamic system; the solid substances in the combustion products, such as waste slag, are discharged after the heat energy contained in the combustion products is utilized (the utilization process and equipment are included in the heating furnace or air is preheated outside the heating furnace body), and the solid substances are not separately listed, and the functions of the solid substances are not separately expressed. And in addition, the air and the fuel gas of each heating furnace carry away a small part of heat through entering and exiting the heating furnace, and are ignored in flow expression.

(6) For convenient distinction, the fuel gas formed by burning the low-grade fuel, the medium-grade fuel and the high-grade fuel is respectively called low-temperature fuel gas, medium-temperature fuel gas and high-temperature fuel gas; of course, the low, medium and high temperatures are relative terms and not actual temperatures.

The specific implementation mode is as follows:

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

The multi-fuel gas turbine plant shown in fig. 1 is realized in such a way that:

(1) Structurally, the system mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator and a second heat source heat regenerator; the external part is provided with low-grade fuel which is communicated with the heating furnace 3, the external part is also provided with an air channel which is communicated with the heating furnace 3 through a heat source heat regenerator 6, the heating furnace 3 is also provided with a fuel gas channel which is communicated with the external part through the heat source heat regenerator 6, the external part is provided with medium-grade fuel which is communicated with the second heating furnace 4, the external part is also provided with an air channel which is communicated with the second heating furnace 4 through a second heat source heat regenerator 7, the second heating furnace 4 is also provided with a fuel gas channel which is communicated with the external part through the second heat source heat regenerator 7, the external part is provided with an air channel which is communicated with the compressor 1, the compressor 1 is also provided with an air channel which is communicated with the combustion chamber 5 through the heating furnace 3 and the second heating furnace 4, the external part is also provided with a high-grade fuel channel which is communicated with the combustion chamber 5, the combustion chamber 5 is also provided with a fuel gas channel which is communicated with the gas turbine 2, the gas turbine 2 is also provided with the external part, and the gas turbine 2 is connected with the compressor 1 and transmits power.

(2) In the process, external low-grade fuel enters the heating furnace 3, external first path air enters the heating furnace 3 after absorbing heat and raising temperature through the heat source heat regenerator 6, the low-grade fuel and the air are mixed and combusted in the heating furnace 3 to be low-temperature fuel gas, the fuel gas of the heating furnace 3 releases heat to compressed air flowing through the heating furnace and lowers the temperature, and then the fuel gas flows through the heat source heat regenerator 6 to release heat, lower the temperature and discharge the fuel gas to the outside; the external medium-grade fuel enters the second heating furnace 4, the external second path of air enters the second heating furnace 4 after absorbing heat and raising temperature through the second heat source heat regenerator 7, the medium-grade fuel and the air are mixed and combusted in the second heating furnace 4 to form medium-temperature fuel gas, the fuel gas of the second heating furnace 4 releases heat to the compressed air flowing through the second heating furnace and lowers the temperature, and then the fuel gas flows through the second heat source heat regenerator 7 to release heat and lower the temperature and is discharged to the outside; the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heating furnace 3 and the second heating furnace 4 to gradually absorb heat and be heated, and then enters the combustion chamber 5; the external high-grade fuel enters the combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas, the fuel gas discharged from the combustion chamber 5 flows through the gas turbine 2 to reduce the pressure and do work, and then is discharged outwards; the low-grade fuel passes through the heating furnace 3, the medium-grade fuel passes through the second heating furnace 4, the high-grade fuel passes through the combustion chamber 5 and provides driving heat load together, the air and the fuel gas take away the low-temperature heat load through the inlet and outlet flow, and the work output by the gas turbine 2 is provided for the compressor 1 and the outside as power, so that the multi-fuel gas turbine device is formed.

The multi-fuel gas turbine apparatus shown in fig. 2 is realized by:

(1) Structurally, the system mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with a compressor 1 by an air channel, the compressor 1 is also communicated with a combustion chamber 5 by the heat regenerator 8, the heating furnace 3 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, the combustion chamber 5 is also communicated with a fuel gas channel and a gas turbine 2, the gas turbine 2 is also communicated with the external part by the heat regenerator 8, and the gas turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heat regenerator 8, the heating furnace 3 and the second heating furnace 4 to gradually absorb heat and be heated, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 flows through the gas turbine 2 to reduce pressure and do work, flows through the heat regenerator 8 to release heat and reduce temperature, and is discharged to the outside to form a multi-fuel gas turbine device.

The multi-fuel gas turbine plant shown in fig. 3 is realized in such a way that:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with a compressor 1 by an air channel, the compressor 1 is also communicated with a combustion chamber 5 by the heating furnace 3, the heat regenerator 8 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, the combustion chamber 5 is also communicated with a fuel gas channel and a gas turbine 2, the gas turbine 2 is also communicated with the external part by the heat regenerator 8, and the gas turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heating furnace 3, the heat regenerator 8 and the second heating furnace 4 to gradually absorb heat and be heated, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 flows through the gas turbine 2 to reduce pressure and do work, flows through the heat regenerator 8 to release heat and reduce temperature, and is discharged to the outside to form a multi-fuel gas turbine device.

The multi-fuel gas turbine apparatus shown in fig. 4 is realized by:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is provided with low-grade fuel to be communicated with the heating furnace 3, the external part is also provided with an air channel to be communicated with the heating furnace 3 through a heat source heat regenerator 6, the heating furnace 3 is also provided with a fuel gas channel to be communicated with the external part through the heat source heat regenerator 6, the external part is provided with medium-grade fuel to be communicated with the second heating furnace 4, the external part is also provided with an air channel to be communicated with the second heating furnace 4 through a second heat source heat regenerator 7, the second heating furnace 4 is also provided with a fuel gas channel to be communicated with the external part through the second heat source heat regenerator 7, the external part is provided with an air channel to be communicated with the compressor 1, the compressor 1 is also provided with an air channel to be communicated with the combustion chamber 5 through the heating furnace 3, the second heating furnace 4 is also provided with a heat regenerator 8 to be communicated with the combustion chamber 5, the external part is also provided with a high-grade fuel channel to be communicated with the combustion chamber 5, the fuel gas channel to be communicated with the gas turbine 2, the gas turbine 2 is also provided with the fuel gas channel to be communicated with the external part through the heat regenerator 8, and the compressor 1 is connected with the gas turbine 2 to transmit power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heating furnace 3, the second heating furnace 4 and the heat regenerator 8 to gradually absorb heat and be heated, and then enters the combustion chamber 5; external high-grade fuel enters the combustion chamber 5, is mixed with compressed air from the heat regenerator 8 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 flows through the gas turbine 2 to reduce pressure and work, flows through the heat regenerator 8 to release heat and reduce temperature, and is discharged to the outside to form a multi-fuel gas turbine device.

The multi-fuel gas turbine apparatus shown in fig. 5 is realized by:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with a compressor 1 by an air channel, the compressor 1 is also communicated with a combustion chamber 5 by the heat regenerator 8, the heating furnace 3 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, the combustion chamber 5 is also communicated with the combustion turbine 2 by the fuel gas channel through the heat regenerator 8 after the combustion gas channel is communicated with the combustion turbine 2, the combustion turbine 2 is also communicated with the external part, and the combustion turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heat regenerator 8, the heating furnace 3 and the second heating furnace 4 to gradually absorb heat and be heated, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 enters the gas turbine 2 to reduce pressure and work to a certain degree, then flows through the heat regenerator 8 to release heat and reduce temperature, and then enters the gas turbine 2 to continuously reduce pressure and work and discharge the gas to the outside, so that the multi-fuel gas turbine device is formed.

The multi-fuel gas turbine apparatus shown in fig. 6 is realized by:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with a compressor 1 by an air channel, the compressor 1 is also communicated with a combustion chamber 5 by the heating furnace 3, the heat regenerator 8 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, the combustion chamber 5 is also communicated with the combustion turbine 2 by a fuel gas channel through the heat regenerator 8 after the combustion gas channel is communicated with the combustion turbine 2, the combustion turbine 2 is also communicated with the external part, and the combustion turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heating furnace 3, the heat regenerator 8 and the second heating furnace 4 to gradually absorb heat and be heated, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 enters the gas turbine 2 to reduce pressure and do work to a certain degree, then flows through the heat regenerator 8 to release heat and reduce temperature, and then enters the gas turbine 2 to continue reducing pressure and do work and discharge to the outside, so as to form the multi-fuel gas turbine device.

The multi-fuel gas turbine apparatus shown in fig. 7 is realized by:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with a compressor 1 by an air channel, the compressor 1 is also communicated with a combustion chamber 5 by the heating furnace 3, the second heating furnace 4 and the heat regenerator 8 by the air channel, the external part is also communicated with a high-grade fuel channel and the combustion chamber 5, the combustion chamber 5 is also communicated with the fuel gas channel and the combustion turbine 2 is also communicated with the self by the heat regenerator 8 after the fuel gas channel is communicated with the combustion turbine 2, the combustion turbine 2 is also communicated with the external part, and the combustion turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air flows through the compressor 1 to be boosted and heated, flows through the heating furnace 3, the second heating furnace 4 and the heat regenerator 8 to gradually absorb heat and be heated, and then enters the combustion chamber 5; external high-grade fuel enters the combustion chamber 5, is mixed with compressed air from the heat regenerator 8 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 enters the gas turbine 2 to reduce pressure and do work to a certain degree, then flows through the heat regenerator 8 to release heat and reduce temperature, and then enters the gas turbine 2 to continue reducing pressure and do work and discharge to the outside, so as to form the multi-fuel gas turbine device.

The multi-fuel gas turbine plant shown in fig. 8 is realized by:

(1) Structurally, the device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with the compressor 1 and then communicated with the compressor 1 by the air channel through a heat regenerator 8, the compressor 1 is also communicated with a combustion chamber 5 by the heating furnace 3 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, the combustion chamber 5 is also communicated with a fuel gas channel through a fuel gas turbine 2, the fuel gas turbine 2 is also communicated with the external part by the heat regenerator 8, and the fuel gas turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air enters the compressor 1, is subjected to pressure rise and temperature rise to a certain degree, then flows through the heat regenerator 8 to absorb heat and rise temperature, and then enters the compressor 1 to continue the pressure rise and temperature rise; the air discharged by the compressor 1 flows through the heating furnace 3 and the second heating furnace 4 to gradually absorb heat and increase temperature, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 flows through the gas turbine 2 to reduce pressure and work, flows through the heat regenerator 8 to release heat and reduce temperature, and is discharged to the outside to form a multi-fuel gas turbine device.

The multi-fuel gas turbine apparatus shown in fig. 9 is realized by:

(1) Structurally, the system mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is communicated with a heating furnace 3 by low-grade fuel, the external part is also communicated with the heating furnace 3 by an air channel through a heat source heat regenerator 6, the heating furnace 3 is also communicated with the external part by a fuel gas channel through the heat source heat regenerator 6, the external part is communicated with a second heating furnace 4 by medium-grade fuel, the external part is also communicated with the second heating furnace 4 by a second heat source heat regenerator 7, the second heating furnace 4 is also communicated with the external part by a fuel gas channel through the second heat source heat regenerator 7, the external part is communicated with the compressor 1 by the air channel, then the compressor 1 is further communicated with the self by the heat regenerator 8, the compressor 1 is further communicated with a combustion chamber 5 by the heating furnace 3 and the second heating furnace 4, the external part is also communicated with a high-grade fuel channel, after the combustion chamber 5 is also communicated with the fuel gas channel and the gas turbine 2 is further communicated with the self by the heat regenerator 8, the gas turbine 2 is also communicated with the external part, and the gas turbine 2 is connected with the compressor 1 and transmits power.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the external third path of air enters the compressor 1, is subjected to pressure rise and temperature rise to a certain degree, then flows through the heat regenerator 8 to absorb heat and rise temperature, and then enters the compressor 1 to continue the pressure rise and temperature rise; the air discharged by the compressor 1 flows through the heating furnace 3 and the second heating furnace 4 to gradually absorb heat and increase temperature, and then enters the combustion chamber 5; the external high-grade fuel enters a combustion chamber 5, is mixed with the compressed air from the second heating furnace 4 and is combusted into high-pressure high-temperature fuel gas; the gas discharged from the combustion chamber 5 enters the gas turbine 2 to reduce pressure and work to a certain degree, then flows through the heat regenerator 8 to release heat and reduce temperature, and then enters the gas turbine 2 to continuously reduce pressure and work and discharge the gas to the outside, so that the multi-fuel gas turbine device is formed.

The multi-fuel gas turbine apparatus shown in fig. 10 is realized by:

(1) Structurally, in the multi-fuel gas turbine device shown in fig. 1, a second heat source heat regenerator is eliminated, and a gas channel of the second heating furnace 4 is communicated with the outside through a second heat source heat regenerator 7 and adjusted to be communicated with the outside through a gas channel of the second heating furnace 4 through a heat source heat regenerator 6; an external air channel is communicated with the heating furnace 3 through a heat source heat regenerator 6, and the external air channel is communicated with the second heating furnace 4 through a second heat source heat regenerator 7, and the external air channel is adjusted to be divided into two paths after passing through the heat source heat regenerator 6, wherein the first path is communicated with the heating furnace 3, and the second path is communicated with the second heating furnace 4.

(2) Compared with the multi-fuel gas turbine device shown in fig. 1, the difference in the flow is that: the fuel gas discharged by the second heating furnace 4 is discharged to the outside after being discharged and cooled by the heat source heat regenerator 6, and the external air is divided into two paths after being heated by the heat source heat regenerator 6, wherein the first path enters the heating furnace 3 to participate in combustion, and the second path enters the second heating furnace 4 to participate in combustion, so that the dual-fuel steam power device is formed.

The effect that the technology of the invention can realize-the multi-fuel gas turbine device provided by the invention has the following effects and advantages:

(1) The temperature difference irreversible loss in the high-temperature heat source forming process is effectively reduced by reasonable collocation and sectional construction.

(2) The low-grade fuel, the medium-grade fuel and the high-grade fuel jointly construct a high-temperature heat source, and the energy utilization value of the low-grade fuel and the medium-grade fuel is obviously improved.

(3) The high-grade fuel and the low-grade fuel and the medium-grade fuel together construct a high-temperature heat source, so that the investment of the high-grade fuel is reduced, and the fuel cost is effectively reduced.

(4) The irreversible loss of temperature difference of the high-grade fuel in the process of forming the high-temperature heat source is reduced, and the utilization value of the high-grade fuel for forming the high-temperature heat source is improved.

(5) The fuel utilization efficiency is obviously improved, the greenhouse gas emission is reduced, the pollutant emission is reduced, and the energy-saving and emission-reducing benefits are remarkable.

(6) The structure is simple, and the flow is reasonable; the fuel selection range and the use value are improved, and the energy consumption cost of the steam turbine device is reduced.

(7) The method is used for reducing the compression ratio of the system, is favorable for improving the flow of the circulating working medium, and is favorable for constructing a large-load gas turbine device.

Claims (10)

1. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator and a second heat source heat regenerator; the external part of the gas turbine is communicated with the external part of the gas turbine (2), the gas turbine (2) is also communicated with the external part, and the gas turbine (2) is connected with the compressor (1) and transmits power to form a multi-fuel gas turbine device, wherein low-grade fuel is communicated with the heating furnace (3) in the external part, the external part is also communicated with the heating furnace (3) through a heat source heat regenerator (6), a gas channel is also communicated with the external part through the heat source heat regenerator (6), medium-grade fuel is communicated with the second heating furnace (4) in the external part, the external part is also communicated with the second heating furnace (4) through a second heat source heat regenerator (7), the external part is also communicated with the compressor (1), the compressor (1) is also communicated with the external part through the heating furnace (3) and the second heating furnace (4), the external part is also communicated with the combustion chamber (5) through a high-grade fuel channel, the combustion chamber (5) is also communicated with the gas channel is communicated with the gas turbine (2).

2. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the gas turbine is communicated with the combustion chamber (5) through a high-grade fuel channel, the combustion chamber (5) is also communicated with a gas turbine (2), the gas turbine (2) is connected with the compressor (2) through a heat regenerator (8), and the gas channel is also communicated with the external part of the combustion chamber (5) through a heat source regenerator (6) to form a multi-fuel-gas device.

3. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external low-grade fuel is communicated with the heating furnace (3), the external air channel is communicated with the heating furnace (3) through the heat source heat regenerator (6), the heating furnace (3) is also provided with a gas channel which is communicated with the external through the heat source heat regenerator (6), the external medium-grade fuel is communicated with the second heating furnace (4), the external air channel is also communicated with the second heating furnace (4) through the second heat source heat regenerator (7), the second heating furnace (4) is also provided with a gas channel which is communicated with the external through the second heat source heat regenerator (7), the external air channel is communicated with the compressor (1), the compressor (1) is also provided with an air channel which is communicated with the external through the heating furnace (3), the heat regenerator (8) and the second heating furnace (4) are communicated with the combustion chamber (5), the external high-grade fuel channel is also communicated with the combustion chamber (5), the combustion chamber (5) is also provided with the gas turbine (2), the gas channel is also communicated with the external through the heat regenerator (8), the gas turbine (2) is connected with the compressor (1) and transmits power fuel, and a multi-turbine device is formed.

4. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external low-grade fuel is communicated with the heating furnace (3), the external air channel is communicated with the heating furnace (3) through the heat source heat regenerator (6), the heating furnace (3) is also provided with a gas channel which is communicated with the external through the heat source heat regenerator (6), the external medium-grade fuel is communicated with the second heating furnace (4), the external air channel is also communicated with the second heating furnace (4) through the second heat source heat regenerator (7), the second heating furnace (4) is also provided with a gas channel which is communicated with the external through the second heat source heat regenerator (7), the external air channel is communicated with the compressor (1), the compressor (1) is also provided with an air channel which is communicated with the external through the heating furnace (3), the second heating furnace (4) and the heat regenerator (8) are communicated with the combustion chamber (5), the external high-grade fuel channel is also communicated with the combustion chamber (5), the combustion chamber (5) is also provided with the gas turbine (2), the gas channel is also communicated with the external through the heat regenerator (8), the gas turbine (2) is connected with the compressor (1) and transmits power fuel, and a multi-turbine device is formed.

5. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the gas turbine is communicated with the combustion chamber (5) through a high-grade fuel channel, the combustion chamber (5) is communicated with the gas turbine (2) through a gas turbine (2), and the gas turbine (2) is communicated with the external part of the gas turbine (2) and is connected with a power transmission device, and a plurality of fuel transmission devices are formed by the compressor (1) and the gas turbine (2).

6. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external low-grade fuel is communicated with the heating furnace (3), the external air channel is communicated with the heating furnace (3) through the heat source heat regenerator (6), the heating furnace (3) is also provided with a gas channel which is communicated with the external through the heat source heat regenerator (6), the external medium-grade fuel is communicated with the second heating furnace (4), the external air channel is also communicated with the second heating furnace (4) through the second heat source heat regenerator (7), the second heating furnace (4) is also provided with a gas channel which is communicated with the external through the second heat source heat regenerator (7), the external air channel is communicated with the compressor (1), the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (5) through the heating furnace (3), the heat regenerator (8) and the second heating furnace (4), the external high-grade fuel channel is also communicated with the combustion chamber (5), the combustion chamber (5) is also provided with the gas channel which is communicated with the gas turbine (2), the gas channel (2) is communicated with the gas turbine (2) and the gas channel is communicated with the combustion chamber (2), and the gas turbine (2) is also communicated with the compressor, and the gas turbine (1) is connected with the power transmission device, and the power transmission device is formed.

7. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the gas turbine is communicated with the combustion chamber (5) through a high-grade fuel channel, the combustion chamber (5) is communicated with the gas turbine (2) through a gas turbine (2), and the gas turbine (2) is communicated with the external part of the gas turbine (2) and is connected with a power transmission device, and a plurality of fuel transmission devices are formed by the compressor (1) and the gas turbine (2).

8. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part of the gas turbine is communicated with the heating furnace (3) through a low-grade fuel, the external part of the gas turbine is communicated with the heating furnace (3) through a heat source regenerator (6), the external part of the heating furnace (3) is also communicated with the external part of the gas channel through the heat source regenerator (6), the external part of the gas turbine is also communicated with the second heating furnace (4) through a second heat source regenerator (7), the external part of the gas turbine is also communicated with the external part of the heating furnace (4) through a second heat source regenerator (7), after the external part of the gas channel is communicated with the compressor (1), the compressor (1) is also communicated with the external part of the heating furnace through a second heat source regenerator (7), the external part of the gas channel is also communicated with the combustion chamber (5) through a regenerator (8), the combustion chamber (5) is also communicated with a gas channel and a gas turbine (2), the gas turbine (2) is also communicated with the external part of the gas turbine through a regenerator (8), and the gas turbine (2) is connected with the combustion chamber (5), and the gas turbine (1) to form a multi-fuel transmission device.

9. The multi-fuel gas turbine device mainly comprises a compressor, a gas turbine, a heating furnace, a second heating furnace, a combustion chamber, a heat source heat regenerator, a second heat source heat regenerator and a heat regenerator; the external part is provided with low-grade fuel which is communicated with the heating furnace (3), the external part is also provided with an air channel which is communicated with the heating furnace (3) through a heat source heat regenerator (6), the heating furnace (3) is also provided with a gas channel which is communicated with the external part through the heat source heat regenerator (6), the external part is provided with medium-grade fuel which is communicated with a second heating furnace (4), the external part is also provided with an air channel which is communicated with the second heating furnace (4) through a second heat source heat regenerator (7), the compressor (1) is also provided with an air channel which is communicated with the compressor (1) and is communicated with the external part through a heat regenerator (8), the compressor (1) is also provided with an air channel which is communicated with the combustion chamber (5) through the heating furnace (3) and the second heating furnace (4), the external part is also provided with a high-grade fuel channel which is communicated with the combustion chamber (5), the combustion chamber (5) is also provided with a gas turbine (2) which is communicated with the gas turbine (2) and is communicated with the gas turbine (2), and a gas turbine (2) is also provided with a multi-turbine power transmission device which is connected with the external part and forms a multi-gas turbine power transmission device.

10. A multi-fuel gas turbine apparatus, which is the multi-fuel gas turbine apparatus according to any one of claims 1 to 9, wherein a second heat source regenerator is eliminated, and a gas channel of the second heating furnace (4) is communicated with the outside through the second heat source regenerator (7) to adjust that the gas channel of the second heating furnace (4) is communicated with the outside through the heat source regenerator (6); an external air channel is communicated with the heating furnace (3) through a heat source heat regenerator (6), and the external air channel is communicated with the second heating furnace (4) through a second heat source heat regenerator (7), and the external air channel is adjusted to be divided into two paths after passing through the heat source heat regenerator (6), wherein the first path is communicated with the heating furnace (3) and the second path is communicated with the second heating furnace (4), so that the multi-fuel gas turbine device is formed.

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