Power generation system

Patent metadata

Field	Value
Publication number	US-9909496-B2
Application number	US-201615289991-A
Country	US
Kind code	B2
Filing date	Oct 11, 2016
Priority date	Apr 11, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A power generation system, including: a solar energy concentration system, a biomass gasification device, a gas-powered generator, a steam turbine, a steam-powered generator. The solar energy concentration system is connected to a solar energy heat exchange system. The biomass gasification device is connected to the gas-powered generator. The gas outlet of the gas turbine is connected to the gas exhaust heat system. The second steam outlet of the gas exhaust heat system is connected to the second and the third cylinders of the steam turbine. The first steam outlet of the gas exhaust heat system and the steam outlet of the solar energy heat exchange system are connected to a steam mixing regulating system. The mixed steam outlet of the steam mixing regulating system is connected to the first cylinder of the steam turbine.

First claim

The invention claimed is:

1. A power generation system, the system comprising:
a) a solar energy concentration system;
b) a biomass gasification device;
c) a gas-powered generator;
d) a steam turbine, the steam turbine comprising a first cylinder, a second cylinder, and a third cylinder; pressures of the first cylinder, the second cylinder, and the third cylinder respectively decreasing;
e) a steam-powered generator;
f) a solar energy heat exchange system, the solar energy heat exchange system comprising a steam outlet;
g) a first compressor;
h) a combustion chamber;
i) a gas turbine, the gas turbine comprising a gas outlet;
j) a gas exhaust heat system, the gas exhaust heat system comprising a first steam outlet and a second steam outlet, and a pressure of the first steam outlet being higher than a pressure of the second steam outlet; and
k) a steam mixing regulating system, the steam mixing regulating system comprising a mixed steam outlet;

wherein
the solar energy concentration system is connected to the solar energy heat exchange system; the biomass gasification device is connected to the gas-powered generator via the first gas compressor, the combustion chamber, and the gas turbine; the gas outlet of the gas turbine is connected to the gas exhaust heat system; the second steam outlet of the gas exhaust heat system is connected to the second and the third cylinders of the steam turbine; the first steam outlet of the gas exhaust heat system and the steam outlet of the solar energy heat exchange system are connected to the steam mixing regulating system; and the mixed steam outlet of the steam mixing regulating system is connected to the first cylinder of the steam turbine.

2. The system of claim 1 , wherein
the steam mixing regulating system comprises a mixer housing; a steam ejection pipe is protruded from a rear end of the mixer housing into a middle-front part of a cavity of the mixer housing; a front end of the steam ejection pipe is sealed, steam nozzles are distributed on a front part of a pipe wall of the steam ejection pipe, and a first steam inlet for introducing in steam from the gas exhaust heat system is disposed at a rear end of the steam ejection pipe; a water ejection pipe is installed inside the first steam inlet in a rear part of the steam ejection pipe; water nozzles are distributed on a part of the water ejection pipe extended into the steam ejection pipe, and an inlet of the water ejection pipe is disposed at an end thereof outside the steam ejection pipe and connected to a solenoid valve;
a second steam inlet for introducing in steam from the solar energy heat exchange system is disposed on an outer wall of a rear part of the mixer housing;
a temperature detector is disposed on an outer wall of a front part of the mixer housing; a probe of the temperature detector is extended into the cavity of the mixer housing; a signal wire of the temperature detector is connected to a temperature controller; a control output terminal of the temperature controller is connected to the solenoid valve disposed at the end of the water ejection pipe outside the steam ejection pipe; and a front end of the mixer housing is the mixed steam outlet.

3. The system of claim 2 , wherein a liner tube is disposed in a middle-rear part of the steam ejection pipe; the liner tube is disposed between the first steam inlet and a distributed region of the steam nozzles; and outer rings at two ends of the liner tube are sealed from the mixer housing.

4. The system of claim 1 , wherein
the solar energy heat exchange system comprises: a heater, an evaporator, and a superheater; the superheater is connected to a conductive oil system of the solar energy concentration system; an oil pipe passes through the evaporator and the heater; an oil outlet is disposed on the heater and connected to an oil return port of the conductive oil system of the solar energy concentration system; and
a water pipe is disposed inside the heater, and the water pipe is connected to an internal of the evaporator; a steam-water separator is disposed at an upper end of the evaporator; and a steam outlet of the steam-water separator is connected to a steam pipe, the steam pipe passes through the superheater, and an outlet of the steam pipe is connected to the steam mixing regulating system.

5. The system of claim 2 , wherein
the solar energy heat exchange system comprises: a heater, an evaporator, and a superheater; the superheater is connected to a conductive oil system of the solar energy concentration system; an oil pipe passes through the evaporator and the heater; an oil outlet is disposed on the heater and connected to an oil return port of the conductive oil system of the solar energy concentration system;
a water pipe is disposed inside the heater, and the water pipe is connected to an internal of the evaporator; a steam-water separator is disposed at an upper end of the evaporator; and a steam outlet of the steam-water separator is connected to a steam pipe, the steam pipe passes through the superheater, and an outlet of the steam pipe is connected to the steam mixing regulating system.

6. The system of claim 3 , wherein
the solar energy heat exchange system comprises: a heater, an evaporator, and a superheater; the superheater is connected to a conductive oil system of the solar energy concentration system; an oil pipe passes through the evaporator and the heater; an oil outlet is disposed on the heater and connected to an oil return port of the conductive oil system of the solar energy concentration system; and
a water pipe is disposed inside the heater, and the water pipe is connected to an internal of the evaporator; a steam-water separator is disposed at an upper end of the evaporator; and a steam outlet of the steam-water separator is connected to a steam pipe, the steam pipe passes through the superheater, and an outlet of the steam pipe is connected to the steam mixing regulating system.

7. The system of claim 1 , wherein a steam output from the first steam outlet of the gas exhaust heat system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 485° C.; a steam output from the steam outlet of the solar energy heat exchange system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 390° C.; and a mixed steam supplied to the steam turbine has a temperature of 435° C.

8. The system of claim 2 , wherein a steam output from the first steam outlet of the gas exhaust heat system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 485° C.; a steam output from the steam outlet of the solar energy heat exchange system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 390° C.; and a mixed steam supplied to the steam turbine has a temperature of 435° C.

9. The system of claim 3 , wherein a steam output from the first steam outlet of the gas exhaust heat system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 485° C.; a steam output from the steam outlet of the solar energy heat exchange system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 390° C.; and a mixed steam supplied to the steam turbine has a temperature of 435° C.

10. The system of claim 4 , wherein a steam output from the first steam outlet of the gas exhaust heat system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 485° C.; a steam output from the steam outlet of the solar energy heat exchange system has a pressure of 10 megapascal or 3.82 megapascal and a temperature of 390° C.; and a mixed steam supplied to the steam turbine has a temperature of 435° C.

11. The system of claim 5 , wherein a ste

Assignees

• Wuhan Kaidi Eng Tech Res Inst

Inventors

• Chen Yilong
• Zhang Yanfeng
• Tang Hongming
• Liu Wenyan

Classifications

• F05D2220/76

  an electrical generator · CPC title

• Y02E20/18

  Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS] · CPC title

• Y02E50/12

  Cross-Sectional Technologies · mapped topic

• F01D15/10

  Adaptations for driving, or combinations with, electric generators · CPC title

• H02K7/1823

  structurally associated with turbines or similar engines · CPC title