Solar and steam hybrid power generation system

Patent metadata

Field	Value
Publication number	US-9841008-B2
Application number	US-201414302419-A
Country	US
Kind code	B2
Filing date	Jun 11, 2014
Priority date	Dec 12, 2011
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

Solar and steam hybrid power generation system including a solar steam generator, an external steam regulator, a turboset, and a power generator. A steam outlet end of the solar steam generator is connected to a steam inlet of the turboset. A steam outlet end of the external steam regulator is connected to the steam inlet of the turboset. A steam outlet of the turboset is connected to the input end of a condenser, and the output end of the condenser is connected to the input end of a deaerator. The output end of the deaerator is connected to the input end of a water feed pump. The output end of the water feed pump is connected to a circulating water input end of the solar steam generator. The output end of the water feed pump is connected to a water-return bypass of the external steam.

First claim

The invention claimed is:

1. A solar and external steam hybrid power generation system, comprising:
a) a solar steam generator for generating a steam by using solar energy;
b) an external steam regulator, the external steam regulator comprising a heat exchanger;
c) a turboset;
d) a power generator, the power generator being coupled to the turboset;
e) a condenser;
f) a deaerator;
g) a water feed pump;
h) a first regulating valve;
i) a second regulating valve;
j) a first switch valve;
k) a second switch valve;
l) a third switch valve;
m) a fourth switch valve; and
n) a water-return bypass;

wherein:
a steam outlet end of the solar steam generator is connected to a steam inlet of the turboset via the first regulating valve for sending the steam to the turboset;
the external steam regulator is adapted to receive an industrial waste steam and regulate a pressure and a temperature of the industrial waste steam;
the second regulating valve is adapted to adjust a flow rate of the industrial waste steam in real-time according to an intensity of sunlight;
a steam outlet end of the external steam regulator is also connected to the steam inlet of the turboset via the second regulating valve and the second switch valve for sending the industrial waste steam to the turboset;
a steam outlet of the turboset is connected to an input end of the condenser, and an output end of the condenser is connected to an input end of the deaerator;
an output end of the deaerator is connected to an input end of the water feed pump;
an output end of the water feed pump is connected to a circulating water input end of the solar steam generator via the first switch valve; and
the output end of the water feed pump is further connected to the water-return bypass via the fourth switch valve.

2. The system of claim 1 , further comprising a third regulating valve, a water supply pump, and a soft water storage tank, wherein a water outlet of the soft water storage tank is connected to a water inlet of the deaerator via the water supply pump, and a first pipe connecting the water outlet of the soft water storage tank and the water inlet of the deaerator is provided with the third regulating valve and the third switch valve.

3. The system of claim 2 , wherein a second pipe is connected to the steam inlet of the turboset; and a pressure manometer and a thermometer are connected to the second pipe.

4. The system of claim 3 , wherein
the solar steam generator comprises an overhead solar boiler and a plurality of heliostats matching therewith;
an output end of a heat pipe of the overhead solar boiler is connected to the steam inlet of the turboset via the first regulating valve; and
an input end of the heat pipe of the overhead solar boiler is connected to the output end of the water feed pump via the first switch valve.

5. The system of claim 2 , wherein
the solar steam generator comprises an overhead solar boiler and a plurality of heliostats matching therewith;
an output end of a heat pipe of the overhead solar boiler is connected to the steam inlet of the turboset via the first regulating valve; and
an input end of the heat pipe of the overhead solar boiler is connected to the output end of the water feed pump via the first switch valve.

6. The system of claim 1 , wherein
the solar steam generator comprises an overhead solar boiler and a plurality of heliostats matching therewith;
an output end of a heat pipe of the overhead solar boiler is connected to the steam inlet of the turboset via the first regulating valve; and
an input end of the heat pipe of the overhead solar boiler is connected to the output end of the water feed pump via the first switch valve.

7. A solar and external steam hybrid power generation system, comprising:
a) a solar steam generator, the solar steam generator comprising an overhead solar boiler, a plurality of heliostats; and a regenerative heat exchanger;
b) an external steam regulator the external steam regulator comprising a heat exchanger;
c) a turboset;
d) a power generator, the power generator being coupled to the turboset;
e) a condenser;
f) a deaerator;
g) a water feed pump;
h) a first regulating valve;
i) a second regulating valve;
j) a first switch valve;
k) a second switch valve;
l) a third switch valve;
m) a fourth switch valve;
n) a fifth switch valve;
o) a water-return bypass; and
p) a heat pump;

wherein:
the external steam regulator is adapted to receive an industrial waste steam and regulate a pressure and a temperature of the industrial waste steam;
the regenerative heat exchanger is adapted to generate a steam;
a steam outlet end of the external steam regulator is connected to a steam inlet of the turboset via the second regulating valve and the second switch valve;
a steam outlet of the turboset is connected to an input end of the condenser, and an output end of the condenser is connected to an input end of the deaerator;
an output end of the deaerator is connected to an input end of the water feed pump;
an output end of the water feed pump is further connected to the water-return bypass via the fourth switch valve;
an output end of a heat pipe of the overhead solar boiler is connected to a thermal medium inlet of the regenerative heat exchanger via the fifth switch valve, and a thermal medium outlet of the regenerative heat exchanger is connected to an input end of the heat pipe of the overhead solar boiler via the heat pump;
a steam outlet of the regenerative heat exchanger is connected to the steam inlet of the turboset via the first regulating valve; and
a circulating water inlet of the regenerative heat exchanger is connected to the output end of the water feed pump via the first switch valve.

8. The system of claim 7 , further comprising a third regulating valve, a water supply pump, and a soft water storage tank, wherein a water outlet of the soft water storage tank is connected to a water inlet of the deaerator via the water supply pump, and a first pipe connecting the water outlet of the soft water storage tank and the water inlet of the deaerator is provided with the third regulating valve and the third switch valve.

9. The system of claim 8 , wherein a second pipe is connected to the steam inlet of the turboset; and a pressure manometer and a thermometer are connected to the second pipe.

10. A solar and external steam hybrid power generation system, comprising:
a) a solar steam generator;
b) an external steam regulator the external steam regulator comprising a heat exchanger;
c) a turboset, the turboset comprising a steam inlet and a steam outlet;
d) a power generator, the power generator being coupled to the turboset;
e) a condenser;
f) a deaerator;
g) a water feed pump;
h) a first regulating valve;
i) a second regulating valve;
j) a first switch valve;
k) a second switch valve;
l) a third switch valve;
m) a fourth switch valve; and
n) a water-return bypass;

wherein:
the external steam regulator is adapted to receive an industrial waste steam and regulate a pressure and a temperature of the industrial waste steam;
a steam outlet end of the solar steam generator is connected to a steam inlet of the turboset via the first regulating valve;
a steam outlet end of the external steam regulator is also connected to the steam inlet of the turboset via the second regulating valve and the second switch valve;
a steam outlet of the turboset is connected to an input end of the condenser, and an output end of the condenser is connected to an input end of the deaerator;
an output end of the deaerator is connected to an input end of the water feed pump;
an output end of the

Assignees

• Wuhan Kaidi Eng Tech Res Inst

Inventors

• Chen Yilong
• Yang Qingping
• Zhang Yanfeng

Classifications

• F03G6/068 Primary

  having other power cycles, e.g. Stirling or transcritical, supercritical cycles; combined with other power sources, e.g. wind, gas or nuclear · CPC title

• F03G6/061

  Parabolic linear or trough concentrators · CPC title

• F03G6/065

  having a Rankine cycle · CPC title

• F03G6/005 Primary

  Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger · CPC title

• Y02E10/46

  Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines · CPC title