KR20100042969A - Generation system - Google Patents

Abstract

PURPOSE: A generation system is provided to maximize the electric energy generation efficiency of a generator since a rotary shaft of the steam turbine rotates the shaft of the generator. CONSTITUTION: A generation system includes a cooling cycle(10), a steam turbine(30), and a generator(50). The cooling cycle includes a compressor(101), a condenser(103), an expansion valve(105), and an evaporator(107). The compressor compresses fluid and discharge the gas of high temperature and pressure. The expansion valve decompresses a liquid of high temperatures into the liquid of low temperatures. The steam turbine has a rotating blade which is on a rotating shaft and is rotated by the fluid of high pressure and high temperature. The generator has a shaft combined with the rotary shaft of the steam turbine.

Description

Power Generation System {GENERATION SYSTEM}

The present invention compresses a low-temperature, low-pressure gaseous fluid to discharge the high-temperature, high-pressure gaseous fluid, and the high-temperature, high-pressure gaseous fluid supplied from the compressor to heat the surrounding air or cooling water A condenser for discharging the fluid in a high temperature liquid state, an expansion valve for reducing the high temperature liquid fluid discharged from the condenser into a liquid in a low temperature liquid state, and a low temperature liquid fluid passing through the expansion valve. A evaporator configured to evaporate and supply a low-temperature, low-pressure gaseous fluid to the compressor; A steam turbine positioned between a compressor and a condenser of the refrigeration cycle and having a rotary blade rotated on a rotating shaft installed therein by a high-temperature, high-pressure gaseous fluid discharged from the compressor; And a generator having a shaft coupled to the rotary shaft of the steam turbine, wherein the rotary shaft of the steam turbine is rotated by the rotary blades rotated by a high-temperature, high-pressure gaseous fluid to rotate the shaft of the generator. It relates to a power generation system characterized in that for rotating the generator to generate electrical energy.

In general, a turbine is a rotary prime mover that obtains power by causing a fluid to strike a rotor blade and converts its kinetic energy into a rotary motion. The turbine is classified into a hydraulic turbine, a steam turbine, a gas turbine, and the like, and is used for power generation and ships.

On the other hand, recently, a turbine power generation system in which a generator generates electrical energy using the turbine has been proposed.

However, the turbine power generation system has a problem in that the electrical energy generation efficiency of the generator is low because it rotates the shaft of the generator by the fluid of the low temperature, low pressure gas state.

Therefore, the present inventors propose a power generation system that can maximize the electric energy generation efficiency of the generator.

The present invention has been made in order to solve the above-mentioned problems, and the rotary shaft of the steam turbine is the shaft of the generator by the high-temperature, high-pressure gaseous fluid discharged from the compressor while the steam turbine is located between the compressor and the condenser. It is an object of the present invention to provide a steam turbine power generation system that can maximize the electrical energy generation efficiency of the generator because it rotates.

The present invention for achieving the above object is a compressor for compressing a low-temperature, low-pressure gas state fluid to discharge the high-temperature, high-pressure gas state fluid, and the high-temperature, high-pressure gas state fluid supplied from the compressor A condenser for discharging the fluid in a high temperature liquid state by exchanging heat with ambient air or cooling water, an expansion valve for reducing the high temperature liquid fluid discharged from the condenser into a low temperature liquid state, and the expansion valve. A evaporator configured to evaporate a low temperature liquid state to supply a low temperature, low pressure gaseous fluid to the compressor; A steam turbine positioned between a compressor and a condenser of the refrigeration cycle and having a rotary blade rotated on a rotating shaft installed therein by a high-temperature, high-pressure gaseous fluid discharged from the compressor; And a generator having a shaft coupled with the rotary shaft of the steam turbine, wherein the rotary shaft of the steam turbine is rotated by the rotor blades rotated by a gaseous fluid of high temperature and high pressure. It provides a power generation system, characterized in that by rotating the shaft allows the generator to generate electrical energy.

Here, the evaporator includes a collector for collecting solar heat; A heat storage tank for accumulating solar heat collected by the heat collector; and the evaporator receives the heat stored in the heat storage tank to evaporate a low temperature liquid state passing through the expansion valve to evaporate a low temperature, low pressure gas state. It is preferred to supply the phosphorus fluid to the compressor.

Further, between the compressor and the condenser of the refrigeration cycle reciprocating engine for linear reciprocating movement in the vertical direction by the high-temperature, high-pressure gaseous fluid flowing into and out; A crank shaft for converting the linear reciprocating motion of the reciprocating engine into a rotary motion; wherein the crank shaft rotates the shaft of the generator in a state coupled with the shaft of the generator to allow the generator to generate electrical energy. desirable.

According to the present invention, since the rotary shaft of the steam turbine located between the compressor and the condenser of the refrigeration cycle rotates the shaft of the generator, the generator can generate electrical energy more easily, and in particular, the steam turbine is located between the compressor and the condenser. Since the rotary shaft of the steam turbine rotates the shaft of the generator by the high-temperature, high-pressure gaseous fluid discharged from the compressor has an effect that the electrical energy generation efficiency of the generator can be more maximized.

The low-temperature liquid fluid is supplied to the compressor because the evaporator evaporates the low-temperature liquid fluid passed through the expansion valve by solar heat to supply the low-temperature, low-pressure gas fluid to the compressor. There is no effect that a safety accident such as a load or a failure occurs in the compressor.

Furthermore, a reciprocating engine which linearly reciprocates in the vertical direction by a fluid in a high temperature and high pressure gas state between the compressor and the condenser of the refrigeration cycle; Crank shaft for converting the linear reciprocating motion of the reciprocating engine into a rotary motion; the generator shaft can be rotated due to the rotational movement of the crank shaft in the state that the generator can generate electrical energy more easily There is an effect that becomes possible.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

FIG. 1 is a view schematically showing a power generation system according to a first embodiment of the present invention, and FIG. 2 is a view schematically showing a state in which the generator 50 of FIG. 1 is generating electrical energy.

As shown in FIG. 1, the power generation system of the present invention includes a refrigeration cycle 10, a steam turbine 30, and a generator 50.

First, the refrigeration cycle 10 is to absorb the heat from the cold body and to export it to the heating body, largely, the compressor 101, the condenser 103, the expansion valve 105 and the evaporator ( 107).

Here, a circulation line 109 through which fluid can circulate between the compressor 101 and the condenser 103, between the condenser and the evaporator 107, and between the evaporator 107 and the compressor 101. These are connected to each other, which will be referred to as first, second, and third circulation lines 109a, 109b, and 109c for convenience of description.

The circulation line 109 may be formed of, for example, a pipe pipe, but is not necessarily limited thereto, and may be used as long as the fluid can circulate.

In addition, the fluid circulating in the circulation line 109 may be made of propane, butane, ammonia, CFC, HCFC, Freon 22 (HCF22), hydrocarbons, and the like, but preferably has a very small effect on global warming. It should be made of carbon dioxide which is non-flammable and has excellent compatibility and safety with refrigeration oil and equipment materials.

On the other hand, the compressor 101 (compressor) compresses the gas by the rotor wheel or the rotational movement of the rotor or the reciprocating motion of the piston, the pressure after compression is at least twice the gas pressure before compression, or the earth output after compression This means a machine that is 1 kgf / cm 2 or more.

More specifically, the compressor 101 is a low temperature, low pressure supplied from the evaporator 107 through a third circulation line 109c connected between the evaporator 107 and the compressor 101 as shown in FIG. The gaseous fluid of the gas is compressed to discharge the high-temperature, high-pressure gaseous fluid to the first circulation line 109a connected between the compressor 101 and the condenser 103. (See ① of FIG. )

Next, the condenser 103 (Condenser) refers to a device for condensing liquid by releasing heat by heat-exchanging the fluid in a gaseous state of high temperature, high pressure to the surrounding air or cooling water.

More specifically, the condenser 103 is a high temperature, high pressure supplied from the compressor 101 through the first circulation line 109a connected between the compressor 101 and the condenser 103 as shown in FIG. The gaseous state of the fluid is heat-exchanged with the surrounding air or cooling water to discharge the high-temperature liquid state fluid into the second circulation line 109b connected between the condenser 103 and the evaporator 107. ② of.)

Next, the expansion valve (105) expands the amount of refrigerant sufficient to sufficiently evaporate the evaporation capacity at a predetermined steam temperature with the compressor (101) at the boundary of the high and low pressure of the refrigerating cycle (10). It is a kind of flow control valve sent to the evaporator 107 by a car.

More specifically, the expansion valve 105 is provided on the second circulation line (109b) to be located between the evaporator 107 and the condenser 103 as shown in Figure 2, wherein the expansion The valve 105 depressurizes the fluid in the high temperature liquid state discharged from the condenser 103 to the fluid in the low temperature liquid state.

Next, the evaporator 107 means an apparatus for evaporating a fluid in a low temperature liquid state passing through the expansion valve 105.

More specifically, the evaporator 107 of the low temperature passed through the expansion valve 105 through the second circulation line 109b connected between the condenser 103 and the evaporator 107 as shown in FIG. It is supplied with liquid fluid.

The evaporator 107 may evaporate a fluid in a low temperature liquid state by geothermal heat, natural heat, waste heat, etc., in particular, evaporate a low temperature liquid state fluid by solar heat to generate a low temperature, low pressure gaseous fluid. Let's go.

Low-temperature, low-pressure gaseous fluid generated by the solar evaporator 107 is supplied to the compressor 101 through a third circulation line 109c connected between the evaporator 107 and the compressor 101. (See ③ in Fig. 2).

Here, the evaporator 107, although not shown in the figure, a collector for collecting solar heat; A heat storage tank for accumulating solar heat collected in the heat collector is further provided, and the evaporator 107 receives the heat stored in the heat storage tank to evaporate the low-temperature liquid in the liquid state passing through the expansion valve 105 to lower the temperature. The low pressure gaseous fluid is supplied to the compressor 101.

The compressor 101 because the evaporator 107 evaporates the low-temperature liquid fluid passing through the expansion valve 105 by solar heat to supply the low-temperature, low-pressure gaseous fluid to the compressor 101. The low-temperature liquid is supplied to the compressor 101 so that the compressor 101 has no advantage of a safety accident such as a load or a failure.

Next, the steam turbine 30 by rotating the shaft 501 of the generator 50 so that the generator 50 generates electrical energy, as shown in Figure 2 the refrigeration cycle (10) It is provided on the first circulation line (109a) to be located between the compressor 101 and the condenser 103.

That is, the high-temperature, high-pressure gaseous fluid discharged from the compressor 101 is supplied to the condenser 103 after passing through the steam turbine 30 through the first circulation line 109a.

The steam turbine 30 (蒸氣-, a steam turbine) is a rotary steam power prime mover, and means a device for generating a rotational force by using thermal energy.

More specifically, the inside of the steam turbine 30 is provided with a rotating shaft (not shown) provided with a rotary blade (not shown) on the outer periphery, for example.

Rotating blades (not shown) installed on the outer periphery of the rotary shaft (not shown) is rotated by the fluid of the high-temperature, high-pressure gas state discharged from the compressor 101, wherein the rotary shaft rotates along the rotary blades do.

Next, the generator 50 is for generating electrical energy, and is provided with a shaft 501 which is axially coupled with a rotating shaft (not shown) of the steam turbine 30.

The generator 50 is a rotator that generates electric power. For example, the shaft 501 of the generator 50 rotates inside the generator 50 so that both ends thereof are exposed to the outside. It may be provided as possible.

More specifically, for example, one end of the shaft 501 of the generator 50 is axially coupled with a rotating shaft (not shown) of the steam turbine 30.

Here, the rotary shaft (not shown) of the steam turbine 30 is rotated by the rotary blades (not shown) to rotate the shaft 501 of the generator 50 to generate electrical energy to the generator 50. Let them do it.

The present invention configured as described above is because the rotary shaft of the steam turbine 30 located between the compressor 101 and the condenser 103 of the refrigeration cycle 10 rotates the shaft 501 of the generator 50. The generator 50 can generate electrical energy more easily, in particular, the high temperature discharged by the compressor 101 in a state where the steam turbine 30 is located between the compressor 101 and the condenser 103, Since the rotating shaft (not shown) of the steam turbine 30 rotates the shaft 501 of the generator 50 by the gas of high pressure gas, the electrical energy generation efficiency of the generator 50 may be more maximized. There is an advantage to that.

3 is a view schematically showing a power generation system according to a second embodiment of the present invention, and FIG. 4 is a view schematically showing a state in which the generator of FIG. 3 generates electrical energy.

Next, the power generation system according to the second embodiment of the present invention includes a refrigeration cycle 10, a reciprocating engine 70, a crankshaft 90, and a generator 50 as shown in FIG. 3.

Since the refrigeration cycle 10 and the generator 50 is configured in the same manner as in the first embodiment, repeated descriptions thereof will be omitted.

On the other hand, the reciprocating engine 70 is a kind of steam engine that performs a linear reciprocating motion in the vertical direction by the high-temperature, high-pressure gaseous fluid discharged from the compressor 101, which is introduced and discharged therein, As shown, it is provided on the first circulation line 109a to be located between the compressor 101 and the condenser 103 of the refrigerating cycle 10.

That is, the high-temperature, high-pressure gaseous fluid discharged from the compressor 101 is introduced into and discharged from the reciprocating engine 70 through the first circulation line 109a and then supplied to the condenser 103. Will be.

Here, the reciprocating engine 70 may include, for example, a cylinder 701 through which a fluid having a high temperature and high pressure gaseous state discharged from the compressor 101 is introduced into and discharged from the inside; A shanghai copper plate 703 linearly reciprocating in a vertical direction by a high temperature, high pressure gaseous fluid flowing in and out of the cylinder 70 in a state provided inside the cylinder 701; An upper end is axially coupled to a lower end of the shanghai copper plate 703, and the crankshaft 90 is performed when the shanghai copper plate 703 is linearly reciprocated in a vertical direction while the lower end is axially coupled to the crank shaft 90. It may be made, including; connecting shaft (705) for rotating, which is a well-known technology and at the same time it will be understood by those skilled in the art to which the present invention pertains will be clearly understood and practiced to be described below. .

In addition, the crank shaft 90 converts the linear reciprocating motion of the reciprocating engine 70 which performs the linear reciprocating motion in the vertical direction into a rotational motion, and the crank shaft 90 is the shaft of the generator 50. Rotating the shaft 501 of the generator 50 in the state coupled to the 501 to allow the generator 50 to generate electrical energy.

The reciprocating engine (70) linearly reciprocating in a vertical direction between the compressor (101) of the refrigeration cycle (10) and the condenser (103) by a fluid of high temperature and high pressure gas; A crank shaft 90 for converting the linear reciprocating motion of the reciprocating engine 70 into a rotational motion; the shaft 501 of the generator 50 rotates due to the rotational motion of the crank shaft 90 Since there is an advantage that the generator 50 can be generated more easily the electrical energy.

1 is a view schematically showing a power generation system as a first embodiment of the present invention,

FIG. 2 is a view schematically showing a state in which the generator of FIG. 1 is generating electrical energy.

3 is a view schematically showing a power generation system as a second embodiment of the present invention;

4 is a diagram schematically illustrating a state in which the generator of FIG. 3 generates electrical energy.

*** Explanation of symbols for main parts of drawing ***

10; Refrigeration cycle, 101; compressor,

103; Condenser, 105; Expansion valve,

107; Evaporator, 109; Circulation Line,

109a; First circulation line, 109b; 2nd circulation line,

109c; Third circulation line, 30; Steam Turbine,

50; Generator, 501; shaft,

70; Reciprocating engine, 701; cylinder,

703; Shanghai Copper, 705; Connecting shaft,

90; Crankshaft.

Claims (3)

Compressor for compressing low-temperature, low-pressure gaseous fluid to discharge high-temperature, high-pressure gaseous fluid, and high-temperature, high-pressure gaseous fluid supplied from the compressor to heat-exchanging air or cooling water A condenser for discharging the fluid in the state, an expansion valve for reducing the high temperature liquid fluid discharged from the condenser into a low temperature liquid state, and a low temperature liquid by evaporating the low temperature liquid state passing through the expansion valve. A refrigeration cycle comprising: an evaporator for supplying a low pressure gaseous fluid to the compressor; A steam turbine positioned between a compressor and a condenser of the refrigeration cycle and having a rotary blade rotated on a rotating shaft installed therein by a high-temperature, high-pressure gaseous fluid discharged from the compressor; And a generator having a shaft coupled to the rotary shaft of the steam turbine, wherein the rotary shaft of the steam turbine is rotated by the rotary blades rotated by a high-temperature, high-pressure gaseous fluid to rotate the shaft of the generator. Power generation system, characterized in that for rotating the generator to generate electrical energy. The method of claim 1, The evaporator includes a collector for collecting solar heat; A heat storage tank for accumulating solar heat collected by the heat collector is further provided, And the evaporator receives solar heat stored in the heat storage tank and evaporates a low temperature liquid state fluid passing through the expansion valve to supply a low temperature, low pressure gas state fluid to the compressor. The method of claim 1, A reciprocating engine performing a linear reciprocating motion in a vertical direction between the compressor and the condenser of the refrigeration cycle by a high temperature, high pressure gaseous fluid introduced into and out of the refrigeration cycle; A crank shaft for converting the linear reciprocating motion of the reciprocating engine into a rotational motion; The crank shaft is a power generation system, characterized in that the generator to generate electrical energy by rotating the shaft of the generator in a state coupled to the shaft of the generator.

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