JPH0734811A - Method and device for hot water power generation - Google Patents

Abstract

PURPOSE:To realize the efficient power generation by introducing the steam from the hot water surface from the bottom part of an up-right cylinder as the vertical vortex flow, improving the vortex circulation due to the elimination of the partial pressure caused by the condensation of the steam through the cooling effect of the vortex flow at the center of the vortex and the expansion of the vortex core caused by the condensation heat, and rotating the turbine by the vortex flow. CONSTITUTION:Radial turbines 34, 36 are rotated in a motor mode of a motor generator 30, and the air from the clearance 20 to introduce the air is mixed with the steam generated from the hot water 12 to be incorporated into an upright cylindrical part 18 as the vertical air vortex flow. The steam is collected in the center of the vortex flow within the cylindrical part 18, and cooled with the swirling supercooling effect, and condensed to make the water drop. The vortex circulation is improved by the expansion of the vortex core through the generation of the condensation heat, and the partial pressure of the steam is eliminated by the condensation of the steam, and the pressure of the vortex core part is further reduced, and the circulation intensity of the vertical air vortex flow within the cylindrical part 18 is further improved. A motor generator 30 is switched to the generator when the rotational torque of an upper radial turbine 3 6 exceeds the motor rotational torque by the whirlwind type vortex flow within the cylindrical part 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water power generation method and device, and more particularly to a method and device for generating electric power by utilizing steam generated from hot water.

[0002]

2. Description of the Related Art As a conventional power generation system, thermal power generation, nuclear power generation, etc. have become the mainstream in place of hydraulic power generation, which has limited facilities. Each of these is a system in which superheated steam is generated by combustion energy or nuclear energy and is converted into rotational power of a turbine to generate electricity. There are also small power generation systems that use a heat engine such as an internal combustion engine, a gas turbine, or steam power. These use a rotary engine to rotate the turbine and use the rotary power as power generation energy.

[0003]

However, the conventional large-scale thermal power generation system has a problem of global environmental destruction due to generation of carbon dioxide gas due to large-scale combustion of fossil fuels such as coal and oil, and power generation by a small internal combustion engine. The use of high temperature and heat resistant materials is indispensable in equipment to treat exhaust gas and improve thermal efficiency. Further, in nuclear power generation, there are difficult problems such as treatment and disposal of combustion waste after the use of nuclear fuel. As a measure against these problems, the expansion of utilization of natural energy such as solar heat, wind power, and wave power is considered in addition to energy saving, but the available energy density is small, and regional uneven distribution and large temporal fluctuation are disadvantages. Has become.

The present invention pays attention to the above-mentioned conventional problems and artificially forms vortex energy such as typhoon or tornado,
An object of the present invention is to provide a hot water power generation method and device that can efficiently generate power by utilizing this.

[0005]

In order to achieve the above object, the hot water power generation method according to the present invention takes in water vapor generated from a hot water surface as a vertical vortex flow from the bottom of an upright cylinder,
Steam condensation due to the eddy current cooling effect in the center of the vortex inside the cylinder, expansion of the vortex core due to heating of the heat of condensation, and disappearance of the partial pressure of the water vapor enhances the vortex circulation while rotating the turbine by the vortex flow to generate electricity. Configured to let.

Further, the hot water power generator according to the present invention comprises a vortex flow introducing casing having a skirt portion having a swirl guide vane facing the hot water surface and an upright cylindrical portion opened at the center thereof, and the upright cylinder is provided. A radial turbine is arranged at least at the upper end of the section, and a motor generator is connected to this radial turbine to switch between turbine rotation drive for taking steam into the cylinder as a vertical vortex flow and subsequent turbine rotation power generation by the enhanced vortex flow. It was possible.

[0007]

According to the above construction, the radial turbine is first driven to rotate by using the motor generator as the rotating machine, and the steam generated from the hot water surface is passed vertically through the swirl guide vanes of the casing skirt from the bottom of the upright cylindrical portion into the cylinder. It is taken in as an air vortex. Since water vapor is lighter than air, it collects in the center of the vortex, and the swirling vortex cooling effect of the air vortex (Vortex T
Due to the ube effect, the water vapor is cooled and condensed to form droplets to release heat of condensation, and the vortex nuclei are expanded, so that the vortex circulation is enhanced. On the other hand, since the condensed droplets are collected on the inner wall of the cylindrical portion by centrifugal force, the partial pressure of water vapor disappears in the static pressure of the mixed phase flow of air and water vapor in the vortex core, so the pressure in the vortex core is further reduced. The vertical circulation strength of vertical air vortices is further enhanced. Therefore, the motor generator is switched to the power generation side, the rotational energy of the vortex is absorbed by the radial turbine installed at the upper part of the upright cylindrical portion to generate electricity, and the condensed droplets and exhaust in the vortex are generated by the centrifugal force. Removed by upright cylindrical wall and radial turbine respectively. Therefore, after rotating the radial turbine using the motor-generator as the motor in the initial stage, if this is switched to the generator side when the vortex circulation is strengthened, the artificial tornado vortex flow will be generated in the upright cylindrical portion thereafter. Since it is formed continuously, it is possible to continue power generation.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the hot water power generation method and apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical sectional view of a hot water power generator according to an embodiment, and FIGS. 2 to 3 are lateral sectional views. As shown in these figures, the device is arranged in the upper part of the hot water tank 10.
In this embodiment, the hot water tank 10 is formed by a circular container, and the hot water 12 of about 50 ° C. is put therein. The hot water 12 may be generated by utilizing natural energy with little environmental pollution by utilizing solar heat or geothermal heat (hot spring).
Also, it is generated by using waste heat from homes and factories.

Hot water tank 10 containing the hot water 12
14 that constitutes the power generator so as to cover the upper surface of the
Is installed. The casing 14 is composed of a skirt 16 facing the upper surface of the warm water 12 and an upright cylindrical portion 18 which is vertically erected at the center thereof. The skirt 16 is formed with an outside air introduction gap 20 having a height hi between the skirt 16 and the outer edge of the warm water tank 10, and is formed in a conical shape so that the height with the warm water surface gradually increases toward the center. The upright cylindrical portion 18 is opened at the center of the skirt 16, and an opening 22 is formed so as to be widened at the hem so as to be continuous with the skirt 16. Therefore, the casing 14 is shaped like an inverted funnel.

Inside the lower surface of the skirt 16 of the casing 14, a plurality of swivel guide vanes 24 are provided as shown in FIG. This is because while introducing the outside air as a swirling flow from the outside air introduction gap 20, the steam rising from the warm water 12 is mixed and introduced into the upright cylindrical portion 18, it can be introduced tangentially to the lower opening 22 thereof. I have to. Therefore, the guide vane 24 is formed to be curved so as to match the vortex line.

Inside the upright cylindrical portion 18 of the casing 14, a rotary shaft 26 is arranged along the central axis thereof,
The lower end of this is rotatably supported by a bearing shaft 28 standing on the bottom of the warm water tank 10. The rotary shaft 26 penetrates the upright cylindrical portion 18 in the vertical direction, and the upper end thereof is connected to the motor generator 30. The motor generator 30 is installed on the upper end of the upright cylindrical portion 18, and switches between the function as a motor and the power generation function by the rotation of the rotary shaft 26. The motor generator 30 is fixedly installed on the upper end blocking plate 32 of the upright cylindrical portion 18. A pair of radial turbines 34, 36 are attached to the rotating shaft 26 at the connection opening and the upper end of the upright cylindrical portion 18 with the skirt 16. Both radial turbines 34, 36 have a plurality of blades along the radial direction, the lower turbine 34 swirls the introduced steam-mixed air in the upright cylindrical portion, and the upper turbine 26 is the upper end of the upright cylindrical portion 18. The air vortex that has reached is released to the outside air. A discharge opening 38 is formed in the side wall of the upright cylindrical portion 18 facing the upper turbine 36 for discharge of outside air. An exhaust guide vane 40 is provided at the discharge opening 38 as shown in FIG. 3 so that the vortex flow does not disappear even during exhaust.

In the hot water generator configured as above,
First, set the motor generator 30 to motor mode,
The radial turbines 34 and 36 are rotationally driven. As a result, air is introduced into the casing 14 from the outside air introduction gap 20, the steam generated from the hot water 12 having a temperature of about 50 ° C. in the hot water tank 10 is mixed, and the upright cylindrical portion 18 is turned by the swirl guide vanes 24 as a swirl flow. Is taken in as a vertical air vortex. In the cylindrical portion 18, since the contained water vapor is lighter than air, it gathers at the center of the vortex. Here, as a physical characteristic of the swirling vortex, when a vortex is formed inside the cylindrical pipe, the temperature of the core portion of the vortex decreases. That is, the swirling vortex cooling effect of the air vortex (Vortex Tube Ef)
It is a fact). Due to this swirling vortex cooling effect, the water vapor is cooled by the vortex flow in the upright cylindrical portion 18 and is condensed into droplets, and the vortex core is expanded by releasing the heat of condensation,
The vortex circulation is strengthened. At the same time, the condensed droplets are blown to the inner wall of the cylindrical portion by the centrifugal force due to the vortex circulation, where water is collected and flows down along the inner wall surface. Since the partial pressure of water vapor due to water vapor condensation disappears from the static pressure in the mixed-phase flow of air and water vapor in the vortex core, the pressure in the vortex core is further reduced, and in combination with the expansion action of the vortex core, the cylindrical part The strength of the vertical air vortex circulation in 18 is further enhanced.

When the circulation of the vortex flow is strengthened in this way, an artificial vortex flow is formed in the upright cylindrical portion 18, and due to the vortex circulation, a rotational torque exceeding the rotating tokule is generated particularly for the upper radial turbine 36. To do. Therefore, the torque fluctuation of the motor generator 30 is detected, and the motor generator 30 is switched to act as a generator when the rotation torque due to the eddy current exceeds the motor rotation torque.
As a result, the enhanced circulation vortex can generate energy for rotating the upper radial turbine 36, and can generate electricity. At the same time, condensed droplets and exhaust in the vortex are removed by their centrifugal forces by the upright cylindrical wall and the upper turbine 36, respectively.

According to such an embodiment, unlike the conventional power generation operation by the heat cycle engine, the vortex circulation of the air / steam two-phase vortex is increased by the heating operation of the heat released by the condensation of the steam, and the air / steam is increased. Due to the dual action of increasing the vortex circulation by reducing the vapor pressure in the vortex core of a two-phase flow vortex, it is possible to generate electricity using the appearance of a strong vortex. As a result, in particular, according to the present invention, since operation is performed using hot water of 100 ° C. or less, it is not necessary to use an expensive high temperature heat resistant material when using a conventional heat engine, and durability is significantly low cost. It is possible to use a power generation device having In addition, since the energy source is hot water, it is possible to use solar heat and geothermal heat such as hot springs, to use natural energy with little environmental pollution, and to generate electricity using warm waste water using waste heat from the existing plant. It can also contribute to the improvement of the power generation efficiency of the plant.

[0016]

As described above, according to the present invention,
The steam generated from the hot water surface is taken in as a vertical vortex from the bottom of the upright cylinder together with the air, and the vortex flow cooling effect at the center of the vortex in the cylinder enhances the vortex circulation by the expansion of the vortex core by the condensation of steam and the disappearance of the partial pressure of steam. As a result, an artificial tornado vortex flow is formed, and this vortex energy is used to generate electricity, so that an excellent effect is obtained in that input energy is small and efficient electricity generation can be realized.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a hot water power generator according to an embodiment.

FIG. 2 is a bottom cross-sectional view of the same device.

FIG. 3 is a top cross-sectional view of the same device.

[Explanation of symbols]

 10 Hot Water Tank 12 Hot Water 14 Casing 16 Skirt 18 Upright Cylindrical Section 20 Outside Air Introduction Gap 22 Opening 24 Swirling Guide Blade 26 Rotating Shaft 28 Bearing Shaft 30 Motor Generator 32 Upper End Blocking Plate 34 Lower Radial Turbine 36 Upper Radial Turbine 38 Discharge Opening 40 Exhaust guide vanes

Claims (2)

[Claims] 1. The steam generated from the hot water surface is taken in as a vertical vortex from the bottom of the upright cylinder, and the steam is condensed by the eddy cooling effect of the vortex center in the cylinder, and the expansion of the vortex core is caused by the heating of the heat of condensation, and the steam. A hot water power generation method characterized in that a turbine is rotated by an eddy current to generate electricity while enhancing vortex circulation by eliminating partial pressure. 2. A vortex flow introducing casing having a skirt portion facing the hot water surface and provided with swirl guide vanes, and an upright cylindrical portion having an opening at the center thereof, wherein a radial turbine is provided at least at an upper end portion of the upright cylindrical portion. The hot water is characterized in that it is arranged to connect a motor generator to this radial turbine, and it is possible to switch between turbine rotation drive for taking in steam as a vertical vortex into the cylinder and power generation by turbine rotation due to the enhanced vortex flow thereafter. Power generator.