KR20120102195A - Power generation system using fluid circulation - Google Patents

Abstract

PURPOSE: A power system using the self-circulation of fluid is provided to generate electricity by applying power to a power generator, and to be operated for a long time without additional charging. CONSTITUTION: A power system using the self-circulation of fluid comprises a fluid container(10), a power generating unit(20), a condenser(30), a gas-liquid separator(40), a receiver tank(50), a pump(60), and a vaporizer(70). The gas-liquid separator collects liquids and gas discharged from the condenser, and discharges only the liquids. The receiver tank collects the liquids discharged from the gas-liquid separator. The pump transfers the liquids to the receiver tank. The vaporizer vaporizes the liquids discharged from the pump.

Description

Power system using the self-circulation of fluids {POWER GENERATION SYSTEM USING FLUID CIRCULATION}

The present invention relates to a power system using the self-circulation of the fluid, and more particularly, to use as an auxiliary power of the internal / external combustion engine by using energy generated by the self-circulation of the fluid in which phase changes of gas and liquid are easily converted. The present invention relates to a power system using self circulation of a fluid.

As is well known, 'internal combustion engine' refers to a power generating device that converts thermal energy generated by burning fuel into mechanical work, and mixes hydrocarbon fuel (coal, petroleum, etc.) with air at an appropriate ratio and burns it inside the engine. When the gas is hot and high pressure is generated, the power is obtained by using the expansion pressure of the gas. Such internal combustion engines include engines that generate power by the expansion force of a gas produced by combustion and explosion of fuel in a cylinder, that is, a diesel engine, a gasoline engine, a gas turbine engine, and the like.

In contrast, an 'external combustion engine' is a heat engine that generates power by a fluid (water or gas) heated through a heat transfer surface of a boiler or a heater, and burns separately from the body of the external combustion engine. The device must be provided, which has the advantage of using a relatively bad fuel, but generally the heat transfer efficiency is bad and large. Such external combustion engines include steam engines, steam turbines and closed gas turbines, but they are used only in special places due to their low efficiency.

These internal combustion engines and external combustion engines operate by using the power generated by themselves, or produce electric energy. In recent years, energy saving is becoming more important as environmental reserves and fossil energy reserves are rapidly decreasing, while energy saving is important. Multifaceted ways to increase efficiency

For example, a car's engine must produce the kinetic energy from driving the car as well as the electrical energy that illuminates the headlights or drives the internal electronics with the rotational force generated by the engine. A pump, a coolant circulation pump for cooling the engine, and various motors for driving a vehicle should be driven. Since the efficiency of these engines is directly related to the fuel consumption, various studies are underway to increase the efficiency of the engines.

The technology for increasing the efficiency of the engine (internal / external combustion engine) is a hybrid electric vehicle, which means a vehicle that is operated through mutual security by combining an internal combustion engine and a motor, especially in the automobile field. In addition, the battery driving the motor accumulates the surplus power by the driving of the engine, and when the electric energy accumulated in the battery is discharged, it must be operated by supplying a separate electric energy or charging only the engine.

Accordingly, it is required to develop an auxiliary power system by providing auxiliary power to internal / external combustion engines to reduce fuel consumption and increase efficiency.

The present invention has been made in accordance with the necessity of the above development, by using the energy generated by the self-circulation of the fluid to generate power or electric energy by itself, the self-circulation of the fluid that can be used as an auxiliary power source of the internal / external combustion engine The purpose is to provide a power system using.

A fluid storage container (10) in which a fluid in a gaseous state is stored in the power system using the self-circulation of the fluid according to the above object; Rotary valve 100 for controlling the injection time of the fluid transferred from the fluid storage container 10, and a rotary engine 200 for converting the expansion force to the rotational energy by the decompression of the fluid discharged from the rotary valve 100 And a power generating unit 20 for outputting rotational force from the rotating engine 200; A condenser (30) for cooling the fluid discharged from the power generator (20); A gas-liquid separator 40 for collecting liquid and gas discharged from the condenser 30 and separating and discharging only liquid; A receiver tank 50 for collecting fluid in a liquid state discharged from the gas-liquid separator 40; A pump 60 for transferring the collected fluid to the receiver tank 50 and a vaporizer 70 for vaporizing the fluid discharged from the pump 60; It is achieved by having.

According to the present invention, since the expansion energy generated in the circulation of the fluid can be used as an auxiliary power of the internal / external combustion engine, the internal / external combustion engine can only be used to perform its own role, The efficiency can be increased.

In addition, since the electric energy can be produced by applying it to a generator using the power produced by the present invention, when applied to a hybrid electric vehicle, it is used to charge a battery driving a motor or to drive an electric / electronic device. It is possible to provide a hybrid electric vehicle capable of long distance operation without charging.

1 is a configuration diagram for supplying a power system according to the present invention to an available device,
2 is a block diagram of a power system using the self-circulation of the fluid according to the present invention,
3 is a perspective view of a power generation unit in the power system of the present invention,
Figure 4 is an exploded perspective view of a rotary valve of the electric energy generating device in the present invention,
Figure 5 is an exploded perspective view of a rotating engine of the electric energy generating device in the present invention,
6 is a cross-sectional view of the rotary engine according to FIG. 5;
7 is a configuration diagram of a heat source used for vaporization according to the power generation system of the present invention.

Hereinafter, the power system using the self-circulation of the fluid of the present invention will be described in more detail with reference to the accompanying drawings.

The present invention relates to a power system using a self-circulation of a fluid that can be used as an auxiliary power of an internal / external combustion engine by using energy generated by the self-circulation of a fluid in which phase changes of gas and liquid are easily converted. The power system of Figure 1 shows a block diagram for supplying to the available device including the internal / external combustion engine as shown in FIG.

The power system 2 using the self-circulation of the fluid according to the present invention is generated during the phase change from the liquid to the gas and the fluid circulation device 2b for self-circulating the fluid while having the phase change of the gas and the liquid on the closed loop. It consists of an auxiliary power unit (2a) for generating power at a pressure that is, the power generated by the auxiliary power unit (2a) can be supplied as the auxiliary power of the internal / external combustion engine (1), and also the auxiliary power unit ( The power of 2a) is applied to the generator 3 so that electrical energy is produced in the generator 3, and the generated electrical energy is supplied to the battery 4 and the electric and electronic device 5 so as to supply the battery 4. ) Can be used as a power to charge or to drive the electrical and electronic device (5).

Figure 2 of the accompanying drawings shows a configuration of a power system using the self-circulation of the fluid according to the present invention, the power system 2 of the present invention as shown in Figure 2 is a fluid storage container 10, the power generating unit 20, a condenser 30, a gas-liquid separator 40, a receiver tank 50, a pump 60, and a vaporizer 70 are configured, and the vaporized fluid in the vaporizer 70 is again a fluid storage container ( 10) to form a conduit so that fluid can circulate through the devices.

The fluid storage container 10 is a gaseous fluid is stored therein, the vaporized fluid is stored in the vaporizer 70.

Auxiliary fluid storage container 11 may be further connected to the fluid storage container 10, and the auxiliary fluid storage container 11 may reduce the pressure of the fluid storage container 10 to a predetermined value or less due to loss of fluid. If so, the fluid storage container 10 is configured to replenish the fluid.

The conditions to be provided as a fluid used in the present invention is ① evaporation at a pressure higher than atmospheric pressure even at low temperature and liquefying at a relatively low pressure at room temperature, ② less power for the same freezing capacity, ③ high critical temperature, low solidification temperature ④ The heat of evaporation is large, the specific heat of liquid is small, and the ratio of liquid specific heat to evaporation heat is small. ⑤ The volume of refrigerant gas is small for the same freezing capacity. ⑥ The chemical bond is good, so the refrigerant gas is decomposed by compressed heat. Although it does not generate any gas other than refrigerant gas, ⑦ low viscosity, good thermal conductivity, ⑧ flammable explosion, harmless to the human body, no odor, ⑨ easy to find when leaking, ⑩ low price Although this may be difficult to meet all of the above conditions.

Examples of the fluid include ammonia, carbon fluoride, carbon dioxide, sulfurous acid gas, methyl chloride, and ethyl chloride, and may be appropriately selected depending on convenience of use, stability, on-site conditions and environmental protection.

Next, the power generation unit 20 will be described.

The power generating unit 20 corresponds to the auxiliary power unit 2a of FIG. 1 and converts the expansion energy when converted to low pressure into rotational energy while expanding the high pressure fluid supplied from the fluid storage container 10. Device.

Accordingly, Figure 3 of the accompanying drawings shows a power generating unit in the power system of the present invention, the power generating unit 20 is a rotary valve for controlling the input of the fluid and a rotating engine for converting the expansion energy into rotational energy It is configured to include.

First, the rotary valve 100 of the power generation unit 20 will be described.

Figure 4 of the accompanying drawings shows an exploded perspective view of a rotary valve used in the electric energy generating device in the present invention.

The rotary valve 100 is to inject a high-pressure fluid into the rotary engine 200 to control the timing of the injection, as shown in FIG. 4, the inlet 111 through which the fluid is introduced and the outlet through which the fluid is discharged. A body 110 composed of 112; It is provided inside the body 110, the through hole 121 is provided and the valve for opening and closing the inlet 111 and the outlet 112 in accordance with the rotational displacement of the through hole 121 by rotation A rotor 120; A shaft 130 extending and installed at upper and lower portions of the valve rotor 120; A cap 140 coupled to upper and lower portions of the body 110 to support the shaft 130 and to allow the valve rotor 120 to be rotatable inside the body 110; A fluid is installed between the bearing 150 provided between the inner circumference of the cap 140 and the outer circumference of the valve rotor 120 and the outer circumference of the valve rotor 120 and the inner circumference of the body 110. Bushing 160 to seal.

In addition, the cap 140 may be more securely supported to the shaft 130 and the bonnet 170 may be screwed to further seal the fluid, and the inside of the bonnet 170 is an elastic spring 171, washer 172 and the packing member 173 are sequentially installed.

The structure of the said rotary valve 100 is demonstrated in detail.

The body 110 is formed in a cylindrical shape, the inside thereof is hollow, and the inlet 111 through which fluid is introduced and the outlet 112 corresponding to the inlet 111 are discharged. The valve rotor 120 is installed in the inner hollow portion of the body 110.

The valve rotor 120 is provided inside the body 110. The valve rotor 120 is provided with a through hole 121, and the through hole 121 rotates by the rotation of the valve rotor 120. While being displaced, the inlet 111 and the outlet 112 are opened or closed.

That is, when the through hole 121 is located in the range of the inlet 111 or the outlet 112 by the rotation of the valve rotor 120, the inlet 111 and the outlet 112 communicate with each other, and the valve rotor 120 rotates. When the through hole 121 is out of the range of the inlet 111 or the outlet 112, the inlet 111 and the outlet 112 are closed.

Upper and lower portions of the valve rotor 120 are provided with shafts 130 extending to the valve rotor 120, respectively.

The inner circumference of the bushing 160 is in contact with the outer circumference of the valve rotor 120, and may be made of a material that absorbs heat generated by the rotation of the valve rotor 120 and easily absorbs the heat. . In addition, a gasket 151 is installed on the interface between the valve rotor 120, the bushing 160, the cap 140, and the bearing 150, which are in contact with each other in the body 110.

The power source for driving the rotary valve 100 may be made by a control motor (not shown in the drawing) which is driven by the rotational force of the rotary engine 200 to be described below or is supplied by a separate electric energy.

Next, a rotating engine will be described.

5 of the accompanying drawings shows an exploded perspective view of a rotary engine of the electric energy generating device in the present invention, the rotary engine 200 used in the electric energy generating device of the present invention controls the rotary valve 100 It is a device for converting the high pressure fluid discharged by the inlet and decompression in the inside of the high pressure fluid at the time of decompression into rotational energy, the engine housing 210, the engine rotor 220, the shaft shaft 230 ), The rotary wing 240, and comprises a cover 250.

The engine housing 210 has a cylindrical operation chamber 213 formed therein and seals the outside. The operating chamber 213 of the engine housing 210 is provided with an engine rotor 220 spaced apart from its central axis and is installed eccentrically. The rotational force of the engine rotor 220 is transmitted to the center axis of the engine rotor 220 to the outside. The shaft shaft 230 for transmitting is installed.

Rotating blades 240 are provided in plurality in the axially perpendicular direction of the engine rotor 220 and one side is in contact with the inner peripheral surface of the operating chamber and the other side is provided to be slidable to the inner side of the engine rotor 220, the engine rotor ( The configuration to be slidable to the inner side of the 220 is made by the push rod 241 to elastically support the rotary blade 240.

One side surface of the engine housing 210 is provided with an inlet port 211 in communication with the operating chamber 213 and the fluid discharged from the rotary valve 100 is introduced, the outlet port facing the inlet port 211 212 is installed and the expanded fluid is discharged through the discharge port 212.

The heat dissipation fin 214 is provided on the outer surface of the engine housing 210 to radiate heat generated by friction between the rotary blade 240 and the wall of the operation chamber 213 to the outside by the rotation of the engine rotor 220. This is installed.

Covers 250 are installed on the left and right sides of the engine housing 210, and the shaft 250 extends through the cover 250 to extend through the cover 250.

Here, the cover 250 and the engine housing 210 is provided with a bearing 252 for smooth rotation of the shaft shaft 230 and an O-ring 251 for sealing the fluid, the outer portion of the cover 250 is the shaft A sealing member 253 for sealing the fluid by the rotation of the shaft 230 and a seal cover 254 for fixing the sealing member 253 are provided.

The operation of the rotary engine 200 having the above configuration will be described.

6 of the accompanying drawings shows a cross-sectional view of the rotary engine, and as shown in FIG. 6, the high pressure fluid is moved to the inlet port 211 of the rotary engine 200 by the rotation of the rotary valve 100. You are guided.

The fluid guided to the inlet port 211 is introduced into one of the space formed by the wall and the rotary blade 240 of the operation chamber 213 and expands while pushing the rotary blade 240 by the pressure of the high pressure fluid. That is, the engine rotor 220 is installed so as to be eccentric in the center of the shaft of the operating chamber 213, and the space formed by the wall and the rotary blade 240 of the operating chamber 213 is different in size and flows into a small space. The high pressure fluid pushes the rotor blades 240 by the expansion energy existing in the fluid, and eventually rotates the engine rotor 220.

Accordingly, when the high pressure fluid is expanded and pushes the rotary blade 240, the engine rotor 220 is rotated and the expanded fluid rotates the engine rotor 220 by the expansion force of the high pressure fluid introduced in the next step and discharge port Ejected via 212.

In this process, the rotation of the rotary valve 100 may be controlled to supply an appropriate amount of high pressure fluid to the rotating engine 200, and the rotating engine 200 may generate rotational energy only by inflow of the high pressure fluid. . In addition, it is possible to adjust the pressure of the discharge fluid of the rotary engine 200 only by controlling the rotary valve 100, and it is easy to convert the high pressure fluid into a low pressure fluid of which the constant pressure is reduced, thereby controlling the fluid pressure on the secondary side. It can be effective.

Rotating energy generated from the rotating engine 200 is transmitted to the internal / external combustion engine (1, see FIG. 1) and used as an auxiliary power source of the internal / external combustion engine or is supplied through a separate power generator (see 3, FIG. 1). It can be configured to produce energy and apply it to a device that requires electrical energy.

On the other hand, the fluid used by the drive of the rotary engine 200 is expanded and converted into a low pressure fluid is discharged, the discharged fluid is transmitted to the condenser 30.

The condenser 30 is a device for condensing liquid by exchanging gaseous fluid with ambient air or cooling water, and cools the fluid discharged from the power generating unit 20.

The power source for driving the condenser 30 may be driven by the electrical energy generated by the generator 400, but if the electrical energy used in the condenser 30 occupies a significant portion, the power system of the present invention may be The efficiency is lowered, which makes it difficult to drive other external devices. However, in order to convert all of the fluid in the gaseous state into the liquid state through the condenser 30, a lot of electrical energy must be supplied, and when a lot of electrical energy is supplied, the power supplied to the external device through the power unit of the present invention. In comparison, the efficiency may be reduced.

Therefore, the condenser 30 needs to be supplied by supplying an appropriate electric energy. In the present invention, only a minimum amount of electric energy is supplied to liquefy a fluid in a gaseous state, thereby discharging the fluid in a mixed state of the liquid and gas from the condenser 30. The gas-liquid separator 40 which separates and supplies a liquid and gas is provided.

The gas-liquid separator 40 collects the fluid in a mixed state of the liquid and the gas discharged from the condenser 30, separates and discharges only the liquid, and feeds the gaseous fluid back to the condenser 300 again.

With the configuration of the gas-liquid separator 40, only the fluid in the liquid state can be separated and supplied, and only the fluid held in the liquid state can be vaporized to generate a fluid (gas) of uniform high pressure.

The condensed fluid discharged from the receiver tank 50 and the gas-liquid separator 40 is collected and transferred to the pump 60, and the pump 60 forcibly transfers the fluid collected in the receiver tank 50 to the vaporizer 70. do.

Vaporizer 70 vaporizes the fluid discharged from the pump 60, Figure 7 of the accompanying drawings is a block diagram of a heat source used for vaporization in the vaporizer according to the present invention.

The heat source used in the vaporizer 70 may be composed of one or more selected from the coolant 71, the heater core 72, the PCT core 730, and the exhaust gas 74.

The coolant 71 is a fluid that absorbs heat while passing through the engine periphery of the internal / external combustion engine and releases heat from the radiator to prevent overheating of the internal / external combustion engine. Therefore, it can be used as a heat source in the vaporizer 70 by using the high heat of the cooling water passing through the periphery of the internal / external combustion engine, and at the same time, the effect of lowering the temperature of the cooling water is also generated.

Heater core 72 and PCT (Positive Temperature Coefficent) core 73 is a heat source used for automobile interior heating in the case of automobiles, heater core 72 is heated by the coolant and PTC core 73 is applied to electrical energy Is heated, and this heated heat source can be used as the heat source of the vaporizer 70.

The exhaust gas 74 is a gas of fossil fuel combusted when the internal / external combustion engine is driven, and the exhaust gas 74 is discharged while maintaining a high temperature. Therefore, not only the exhaust gas 74 can be used as a heat source of the vaporizer 70, but also the waste gas 74 can be used as a heat source to recover waste energy.

According to the present invention, since the expansion energy generated in the circulation of the fluid can be used as an auxiliary power of the internal / external combustion engine, the internal / external combustion engine can only be used to perform its own role, The efficiency can be increased.

In addition, since the electric energy can be produced by applying it to a generator using the power produced by the present invention, when applied to a hybrid electric vehicle, it is used to charge a battery driving a motor or to drive an electric / electronic device. It is possible to provide a hybrid electric vehicle capable of long distance operation without charging.

10: fluid storage container 11: auxiliary fluid storage container
20: power generator 30: condenser
40: gas-liquid separator 50: receiver tank
60: pump 70: carburetor
71: cooling water 72: heater core
73: PTC core 74: exhaust gas
100: rotary valve
110: body 111: inlet
112 outlet 120 valve rotor
121: through hole 130: shaft
140: cap 150: bearing
151: gasket 160: bushing
170: bonnet 171: spring
172 washer 173 packing
200: rotor engine
210: engine housing 211: suction port
212 discharge port 213 operating chamber
214: heat radiating fin 220: engine rotor
230: shaft shaft 240: rotary blade
241: push rod 250: cover
251: O-ring 252: bearing
253: sealing member 254: seal cover
300: control device
310: pressure sensor 320: display unit
321: current pressure display unit 322: set pressure display unit
323: operation button unit 330: input unit
340 control unit 350 output unit

Claims (5)

A fluid storage container 10 in which a gaseous fluid is stored therein;
Rotary valve 100 for controlling the injection time of the fluid transferred from the fluid storage container 10, and a rotary engine 200 for converting the expansion force to the rotational energy by the decompression of the fluid discharged from the rotary valve 100 And a power generating unit 20 for outputting rotational force from the rotating engine 200;
A condenser (30) for cooling the fluid discharged from the power generator (20);
A gas-liquid separator 40 for collecting liquid and gas discharged from the condenser 30 and separating and discharging only liquid;
A receiver tank 50 for collecting fluid in a liquid state discharged from the gas-liquid separator 40;
Pump 60 for transferring the collected fluid to the receiver tank 50 and
A vaporizer 70 for vaporizing the fluid discharged from the pump 60; Power generation system using the self-circulation of the fluid, characterized in that consisting of.
The method according to claim 1,
The rotary valve 100
A body 110 including an inlet 111 through which the fluid is introduced and an outlet 112 through which the fluid is discharged;
It is provided inside the body 110, the through hole 121 is provided and the valve for opening and closing the inlet 111 and the outlet 112 in accordance with the rotational displacement of the through hole 121 by rotation A rotor 120;
A shaft 130 extending and installed at upper and lower portions of the valve rotor 120;
Caps 140 coupled to upper and lower portions of the body 110 and supporting the valve rotor 120 to be rotatable inside the body 110;
A bearing 150 provided between an inner circumference of the cap 140 and an outer circumference of the rotor 120;
And a bushing (160) installed between an outer circumference of the valve rotor (120) and an inner circumference of the body (110).
The method according to claim 1,
The rotary engine 200
An engine housing 210 having a cylindrical operation chamber 213 formed therein and sealing an outside thereof;
An engine rotor 220 spaced apart from the central axis of the operation chamber 213 and installed;
A shaft shaft 230 installed at the center shaft of the engine rotor 220 to transmit the rotational force of the engine rotor 220 to the outside;
A plurality of rotor blades installed in the axially perpendicular direction of the engine rotor 220, one side of which is in contact with the inner circumferential surface of the operation chamber 213 and the other side of which is slidable to an inner side of the engine rotor;
An inlet port 211 through which fluid discharged from the rotary valve 100 flows into one side of the operation chamber 213 and
And a discharge part (212) installed facing the inlet port (211) and discharged from the pressure-reduced fluid by expansion.
The method according to claim 3,
Power generation system using a self-circulation of the fluid, characterized in that the heat dissipation fin (214) is provided on the outer surface of the engine housing (210).
The method according to claim 1,
The heat source used in the vaporizer 70 is composed of one or more selected from the cooling water 71, the heater core 72, the PTC core 73 and the exhaust gas 74 using the self-circulation of the fluid Power generation system.

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