JP2001221015A - Mixed medium power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixed medium power generation system reduced in construction cost by reducing the size of a condenser for condensing exhaust of a mixed medium turbine. SOLUTION: This mixed medium power generation system uses a mixing and absorbing means for feeding exhaust from the mixed medium turbine to a sucking part, feeding mixed medium liquid separated from the mixed medium steam to a driving nozzle, and jetting the mixed medium liquid from the driving nozzle into a main body nozzle at high speed to such the exhaust into the main body nozzle so that the exhaust is mixed with the mixed medium liquid and absorbed therein. Thus, the mixing medium can flow into condenser means, whereby the heat exchange efficiency at a heat exchange art of the condenser means can be heightened, and the means is made compact so as to reduce the construction cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixed-medium power generation system for generating electric power by using a mixed medium in which media having different boiling points are mixed, and more particularly, to reducing the size of a condenser for condensing exhaust gas of a mixed-medium turbine. It is an object of the present invention to provide a mixed-medium power generation system that can reduce construction costs and can be operated in response to daytime peak power demand.

[0002]

2. Description of the Related Art Demand for electric power has been steadily increasing both for industrial use and for consumer use, supported by economic development in recent years and personal consumption such as enlargement of home appliances and spread of air conditioning.

[0003] Combined cycle power generation is known as a power generation system to meet such power demand. In this power generation system, a gas turbine is driven by high-temperature and high-pressure combustion gas obtained by burning natural gas. By driving steam turbine by generating steam by high-temperature gas discharged from gas turbine, its thermal efficiency reaches 40 to 50%.

[0004] On the other hand, cogeneration in which steam or hot water is produced by a heat exchanger by performing turbine bleed, and the produced hot water is transported through a pipeline for a distance of about 30 km to supply heat and simultaneously generate electric power. The technology is known. With this cogeneration technology, the overall thermal efficiency is 60-80%. Further, in this cogeneration technology, since electric energy and heat energy are used, the amount of heat released to the global environment can be reduced.

On the other hand, in Japan, there is a great demand for cooling in heat utilization, so that a method of using an absorption refrigerator and obtaining cold heat by using hot water or steam as a heating source is advantageous in terms of heat efficiency. For example, at the Hainan power plant burning heavy oil in Wakayama Marina City, 600,000 kWe
30 t / h steam obtained by heat exchange with steam extracted from the turbine of the No. 1 is transported by piping and supplied, and the cold heat and steam generated by the absorption refrigerator are supplied to hotels, houses, sports facilities and the like. .

On the other hand, in a light water nuclear power plant which has low thermal efficiency only by power generation, for example, when a 1.1% kW class boiling water nuclear power plant performs 30% extraction and uses heat, the power generation output is 776 MWe, and the heat output is 776 MWe. Output 12
45 MWt, and the total thermal efficiency can be reduced to about 61.4%.
Significant improvement in heat utilization efficiency can be achieved with respect to 5%.

Conventionally, as described in JP-A-9-209716 and JP-B-4-27367, a steam turbine driven by steam generated by a heat source and an exhaust gas from the steam turbine are condensed. And a heat exchange means for performing heat exchange between the exhaust gas from the steam turbine and the mixed medium, the steam system having a condenser to be condensed, and a condensate transport means for transporting the condensate generated by the condenser to a heat source. Separation means for separating the mixed medium heated by the heat exchange means into liquid and gas, a mixed medium turbine driven by the gaseous mixed medium separated by the separation means, and separation of exhaust gas from the mixed medium turbine Mixing means for mixing the liquid mixture medium separated by the means, condensing means for condensing the mixed medium, and condensate transport means for conveying the condensate generated by the condensing means to the heat exchange means Having, power plant thermal efficiency complexed water-ammonia mixture medium cycle is known.

In this mixed medium cycle, a mixed medium turbine is attached to a refrigerant producing section of an absorption refrigerator to generate electric power. Manufacturing is possible.

Japanese Patent Publication No. H11-502278 discloses a venturi mixing apparatus provided with a bar structure for supplying a secondary fluid to a fluid converging portion of the venturi. Is not used as an ejector.

Japanese Patent Application Laid-Open No. H11-148733 discloses a device that performs mixing and absorption using an ejector. In this device, a driving device is used to increase a contact area between a driving flow and a suction flow. A system in which nozzles are bundled and ejected to a main body nozzle is employed.

Japanese Patent No. 2838917 discloses that
An ejector device is described in which a gas refrigerant vaporized by a refrigerant evaporator of a refrigeration cycle is sucked by a driving nozzle using a compressed refrigerant as a driving source.

Furthermore, Japanese Patent Application Laid-Open No. 11-37577 describes the internal structure of a drive nozzle for improving the efficiency and miniaturizing such an ejector.

[0013]

The nuclear power plant has a feature that the construction cost is higher but the fuel cost is lower than that of a thermal power plant that burns fossil fuels. is there.
However, when a mixed-medium power generation system is attached to this nuclear power plant to form a mixed-medium cycle power plant that can generate electricity with higher efficiency, the construction cost of the attached system must be within the range of improved power generation efficiency. Is preferred. It is also preferable that the mixed-medium power generation system can be operated in response to daytime peak power demand.

Accordingly, the present invention is directed to a mixed-medium power generation system in which a condenser for condensing exhaust gas of a mixed-medium turbine can be reduced in size and construction cost can be reduced, and can be operated in response to daytime peak power demand. Is to provide.

[0015]

SUMMARY OF THE INVENTION The present invention, which solves the above-mentioned problems, is a mixed-medium power generation system for generating power using a mixed medium in which media having different boiling points are mixed, wherein the mixed medium is heated by a heating source. A mixed-medium turbine driven by the mixed-medium vapor obtained to drive the generator, exhaust gas from the mixed-medium turbine is supplied to the suction portion, and mixed-medium liquid is supplied to the drive nozzle, and Mixing and absorbing means for ejecting the mixed medium liquid from the driving nozzle into the main body nozzle at a high speed to suck the exhaust gas into the main body nozzle to mix and absorb the mixed medium liquid with the mixed medium liquid; Liquid condensing means for cooling and condensing the mixed medium to be condensed, and condensate supply means for supplying the condensed liquid to the heating source.

That is, when the mixed medium liquid is ejected at a high speed from the drive nozzle of the mixing and absorbing means, the mixed medium vapor supplied to the suction section is efficiently mixed and absorbed, and the mixed medium is recovered at a high speed. Can be flowed into. As a result, the heat exchange efficiency in the heat exchange section of the liquid condensing means can be increased, so that the liquid condensing means can be made compact and contribute to a reduction in the construction cost.

In the mixed-medium power generation system according to the present invention, the mixed medium heated by the heating source may be a high-concentration mixed-medium vapor having a high concentration of a low-boiling medium and a low-concentration mixed medium having a low-concentration of the low-boiling medium. A separation means for separating into a liquid can be further provided. Then, the high-concentration mixed-medium vapor is supplied to the mixed-medium turbine, and the low-concentration mixed-medium liquid is supplied to a drive nozzle of the mixing and absorbing means. This makes it possible to reliably separate the mixed medium into a high-concentration mixed medium vapor having a high concentration of the low-boiling medium and a mixed medium liquid having a low concentration of the low-boiling medium. Can be further improved.

The mixed-medium power generation system according to the present invention further comprises a refrigerant-producing means for producing a refrigerant by adiabatically expanding a condensed liquid obtained by condensing a high-concentration mixed-vapor vapor, and producing ice using the refrigerant. And a cooling means for cooling an exhaust path of the mixed-medium turbine using a cooling liquid obtained by thawing the ice. In this way, ice is manufactured and converted into latent heat when the power energy demand is low, such as at night, and stored, and the stored ice is thawed to obtain a cooling liquid when the power energy demand is high during the day. By supplying the cooling liquid to the cooling means provided in the exhaust path of the mixed medium turbine, the steam pressure at the mixed medium turbine outlet can be reduced, and the output of the mixed medium turbine can be increased. Can be provided.

The refrigerant producing means includes a condenser for cooling and condensing the second refrigerant by using the refrigerant, an expansion valve for adiabatically expanding the condensed second refrigerant, and an adiabatic expansion. A heat exchanger that performs heat exchange with the second refrigerant;
A compressor that compresses the heat-exchanged second refrigerant and supplies the compressed second refrigerant to the condenser. The ice producing means produces ice by exchanging heat with the second refrigerant in the heat exchanger. This makes it possible to produce ice with higher efficiency.

[0020] The cooling means may be a heat exchanger interposed between the mixed medium turbine and the mixing and absorbing means for cooling the mixed medium steam which is exhaust gas of the mixed medium turbine. Further, the cooling unit may be a cooling unit that circulates and cools around the main body nozzle of the mixing and absorbing unit, for example. Further, the cooling means may be a heat exchanger provided in the liquid condensing means for cooling the mixed medium inside the liquid condensing means. Further, the cooling means may be a heat exchanger that cools the mixed medium liquid supplied to the driving nozzle.

The mixing and absorbing means is provided with a driving liquid supply pipe for supplying a mixed medium liquid to each driving nozzle,
A plurality of drive nozzles are connected to this drive liquid supply pipe in close proximity. And the driving liquid supply pipes adjacent to each other
The mixed medium vapors flowing into the suction section are arranged close to each other with their positions shifted from each other in the flow direction. Thereby, a large number of driving liquid supply pipes, that is, the driving nozzles can be arranged close to each other and densely.

The driving nozzles and the main body nozzles can be arranged in one-to-one correspondence. In addition, a plurality of drive nozzles arranged close to each other and one main body nozzle can be arranged correspondingly. The driving nozzle can be a multiple cylindrical nozzle in which a plurality of cylindrical driving nozzles are coaxially combined with each other. Further, by providing the reduced diameter portion and the increased diameter portion in the drive nozzle, the mixed medium liquid ejected from the drive nozzle can be made into a gas-liquid two-phase flow. In addition,
A gas-liquid two-phase flow is formed by mixing the mixed medium liquid ejected from the driving nozzle and the mixed medium vapor sucked from the suction section. Since such a gas-liquid two-phase flow flows into the liquid condensing means at a high speed, the heat exchange efficiency in the heat exchange section of the liquid condensing means can be increased. It can contribute to cost reduction.

The mixing / absorbing means may have a double inner wall, and a vacuum heat insulating space may be provided therein.
The mixing / absorbing means may have a double inner wall and a cooling chamber for supplying a cooling liquid obtained by thawing the ice therein. This prevents the inside of the mixing and absorbing means from being affected by a high external temperature, lowers the temperature of the exhaust path of the mixed medium turbine, and further improves the output of the mixed medium turbine.

The liquid recirculating means for cooling and recondensing the mixed medium obtained from the mixing and absorbing means includes a heat exchanger for supplying a cooling liquid obtained by thawing ice to the main body nozzle side of the mixing and absorbing means. Can be provided. Thus, even if the temperature of the condensate obtained in the condensate condensing unit is increased, it is possible to reliably prevent the influence from reaching the outlet of the mixed medium turbine and increase the output of the mixed medium turbine. Further, by raising the temperature of the liquid condensate, the temperature of the cooling water discharged from the liquid condensing means can be lowered, so that the heat energy released to the outside can be reduced.

The mixed medium can be composed of ammonia as a low-boiling medium and water as a high-boiling medium.

[0026] The second refrigerant may be propane.

The ice producing means can produce ice from seawater to produce fresh water ice, or ammonia ice to produce ammonia ice.

As the heating source, a coal-fired power station, an oil-fired power station, a combined natural gas-fired power station, a refuse-burning power station, a geothermal power station, a light water cooled nuclear power station, a heavy water cooled nuclear power station, a high temperature gas cooled nuclear power station Turbine exhaust or exhaust gas obtained from a power plant, a fuel cell power plant, or the like can be used.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment First, the structure and operation of a mixed-medium power generation system according to a first embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 1, the mixed-medium power generation system 7 of the first embodiment is combined with the nuclear power generation system 1 to form a mixed-medium cycle power generation plant 100 capable of generating power with high efficiency.

In the nuclear power generation system 1, a coolant made of light water is heated in the nuclear reactor 2 and turns into a saturated or superheated steam to operate the steam turbine 3. Then, the steam turbine 3 drives the first generator 4 to generate power. The steam discharged from the steam turbine 3 is guided to a heat exchanger (heating source) 5, cooled by heat exchange with a mixed medium supplied from a mixed medium power generation system 7, and condensed. It is returned to the reactor 2 by 6.

The mixed-medium power generation system 7 generates power using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium. This mixed medium is a heat exchanger of the nuclear power generation system 1. At 5, the mixture is heated and becomes steam, and the mixed medium turbine 8 is operated. Then, the mixed medium turbine 8 drives the second generator 9 to generate power.

The mixed medium steam, which is the exhaust gas of the mixed medium turbine 8, is used in a heat exchanger (heat exchange means) 10 to heat a first condensate to be described later. This heat exchanger 1
The first condensate heated at 0 is led to a medium-pressure separator (separation means) 11, where the concentration of the high-concentration mixed medium vapor having a high concentration of the low-boiling-point ammonia and the low-concentration of the low-boiling-point medium is low. It is separated into a low concentration mixed medium liquid. Then, the low-concentration mixed medium liquid obtained from the intermediate-pressure separator 11 is supplied to the drive nozzle 13 a of the ejector (first mixing / absorbing unit) 13 after being reduced in pressure by the throttle valve (reducing unit) 12. On the other hand, the mixed medium steam, which is the exhaust gas of the mixed medium turbine 8, is guided to the suction portion 13 b of the ejector 13 after being cooled by heat exchange in the heat exchanger 10.

The drive nozzle 13a of the ejector 13 includes:
A reduced-diameter portion and an increased-diameter portion are provided, and have the effect of converting the low-concentration mixed medium liquid jetted from the driving nozzle 13a into a gas-liquid two-phase flow. Thereby, when the low-concentration mixed medium liquid is ejected from the drive nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase fluid into the main body nozzle 13c, the suction unit 1
The high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8 guided to 3b, is sucked into the main body nozzle 13c, mixed with the low-concentration mixed-medium liquid, and absorbed by the condenser (first).
(Recovery means) 14.

The mixed medium supplied to the condenser 14 is cooled by heat exchange with a cooling medium such as seawater and the like, and the liquid is returned to the first medium.
It will return. The first condensate is pressurized by a pressurizing pump (first condensate supply means) 15 and a part thereof is
After being supplied to the intermediate pressure separator 11. The remaining portion of the first condensed liquid pressurized by the pressurizing pump 15 is ejected by an ejector (second mixing and absorbing means) 16.
To the driving nozzle 16a. The high-concentration mixed medium vapor separated by the medium-pressure separator 11 is guided to the suction part 16b of the ejector 16.

The drive nozzle 16a of the ejector 16 includes
The drive nozzle 16a is provided with a reduced diameter portion and an increased diameter portion.
The low-concentration mixed medium liquid spouted from the gas is made into a gas-liquid two-phase flow. As a result, when the low-concentration mixed medium liquid is ejected from the drive nozzle 16a of the ejector 16 as a high-speed gas-liquid two-phase fluid into the main body nozzle 16c, the high-concentration mixed medium vapor guided to the suction part 16b is discharged. After being sucked into the nozzle 16c, mixed with the low-concentration mixed medium liquid, and absorbed, it is supplied to the condenser (second liquid returning means) 17.

The mixed medium obtained from the ejector 16 is
In the condenser 17, the liquid is cooled by heat exchange with a cooling medium such as seawater, and is condensed to be a second condensed liquid. Then, the second condensate is pressurized by the high-pressure pump 18, returned to the heat exchanger 5 of the nuclear power generation system 1, and heated.

Next, the effect of the mixed-medium power generation system 7 of the first embodiment having the above-described configuration will be described.

As described above, in the mixed-medium power generation system 7 of the first embodiment, the low-concentration mixed-medium liquid supplied from the medium-pressure separator 11 is supplied to the high-speed gas-liquid two-phase from the drive nozzle 13 a of the ejector 13. The high-concentration mixed-medium vapor discharged from the mixed-medium turbine 8 is ejected as a stream, and the exhaust gas is sucked, mixed, absorbed, and flows into the condenser 14. Thereby, the temperature is increased by the heat generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is absorbed by the low-concentration mixed-medium liquid, and the pressure at the outlet of the mixed-medium turbine 8 increases. In addition to preventing the mixed medium turbine 8 from being prevented, the suction effect of the first ejector 13 can reduce the pressure at the outlet of the mixed medium turbine 8.
Can be increased.

When the low-concentration mixed medium liquid is ejected from the driving nozzle 13a of the first ejector 13 as a high-speed gas-liquid two-phase flow, the diameter of the liquid droplet becomes about several tens of microns, so that the surface area of the liquid droplet is reduced. Can be increased. Thus, the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, can be efficiently absorbed and allowed to flow into the heat exchange section of the condenser 14 at a high speed. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact to contribute to a reduction in the construction cost.

Similarly, the pressurized first condensate is ejected to the ejector 1
Since the high-pressure gas-liquid two-phase flow is ejected from the driving nozzle 16a of the sixth embodiment, the high-concentration mixed medium vapor separated by the intermediate-pressure separator 11 is efficiently absorbed and flown into the heat exchange section of the condenser 17 at high speed. be able to. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 17 can be increased,
The condenser 17 can be made compact to contribute to a reduction in the construction cost.

In the above description, the mixed medium is heated by the heat exchanger 5 of the nuclear power generation system 1 to form steam, but the heat is exchanged with steam generated by a general heating boiler instead of the nuclear reactor. The mixed medium can be heated to vapor. Further, the steam generated in the reactor 2 may be superheated steam instead of saturated steam. Further, the coolant used for the nuclear reactor 2 is not limited to light water, but may be a combustion gas or a rare gas. In addition, the heat exchanger 5 of the nuclear power generation system 1 can be replaced with other various heat sources, and the mixed medium power generation system 7 can be operated alone.

Second Embodiment Next, referring to FIG. 2, the structure and operation of a mixed-medium power generation system according to a second embodiment of the present invention will be described. In the following description, the same reference numerals are used for the same portions as those in the first embodiment.

As shown in FIG. 2, the mixed medium power generation system 20 of the second embodiment is combined with the nuclear power generation system 1 to form a mixed medium cycle power generation plant 200 capable of generating power with high efficiency.

The nuclear power generation system 1 is exactly the same as that of the first embodiment described above, and the description thereof will be omitted.

The mixed-medium power generation system 20 generates power using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium. After being heated in 5, the mixture is guided to the high-pressure separator 21, and is converted into a high-concentration mixed medium vapor having a high concentration of ammonia as a low-boiling medium and a low-concentration mixed medium liquid having low concentration of ammonia as a low-boiling medium. Separated. The high-concentration mixed-media vapor separated by the high-pressure separator 21 is guided to the mixed-medium turbine 8, and is used to drive the generator 9 to generate power. Then, the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is guided to the suction part 13 b of the ejector 13. In addition, high pressure separator 2
The low-concentration mixed medium liquid separated in 1 is led to the heat exchanger 22 and used for heating the condensed liquid supplied from the pressurizing pump 15, and then depressurized by the throttle valve (decompression means) 12. It is supplied to the drive nozzle 13a of the ejector 13.

The drive nozzle 13a of the ejector 13 includes:
The drive nozzle 13a is provided with a reduced diameter portion and an increased diameter portion.
The low-concentration mixed medium liquid spouted from the gas is made into a gas-liquid two-phase flow. As a result, when the low-concentration mixed medium liquid is ejected from the drive nozzle 13a into the main body nozzle 13c as a high-speed gas-liquid two-phase flow, the mixed medium vapor, which is the exhaust of the mixed medium turbine 8 guided to the suction part 13b, Is sucked into the main body nozzle 13c, mixed with the low-concentration mixed medium liquid, and absorbed.

The mixed medium obtained from the ejector 13 is
The liquid is cooled by heat exchange with a cooling medium such as seawater, and is condensed in the condenser 14. This condensed liquid is pressurized by the pressurizing pump 15 and is supplied to the heat exchanger 22 and heated.
It is returned to the heat exchanger 5 of the nuclear power generation system 1.

Next, the effect of the mixed-medium power generation system of the second embodiment will be described.

As described above, in the mixed-medium power generation system 20 according to the second embodiment, the high-pressure, low-concentration mixed-medium liquid supplied from the high-pressure separator 21 is supplied from the drive nozzle 13 a of the ejector 13 to the high-speed gas-liquid The high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is sucked, mixed, absorbed, and flows into the condenser 14 by being ejected as a phase flow. Thereby, the temperature rises due to the heat generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is absorbed by the low-concentration mixed-medium liquid separated by the high-pressure separator 21. In addition to preventing the pressure in the section from rising, the ejector 13
Therefore, the output of the mixed medium turbine 8 can be increased.

The low-concentration mixed medium liquid is supplied to the ejector 13.
The jet is ejected from the drive nozzle 13b as a high-speed gas-liquid two-phase flow, and the droplet diameter becomes about several tens of microns, so that the surface area of the droplet can be increased. Thus, the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, can be efficiently absorbed and allowed to flow into the heat exchange section of the condenser 14 at a high speed. Therefore, the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, and the condenser 1
4 can be made compact and its construction cost can be reduced.

Third Embodiment Next, the structure and operation of a mixed-medium power generation system according to a third embodiment will be described with reference to FIG. In the following description, the same reference numerals are used for the same parts as those in the above-described first and second embodiments.

As shown in FIG. 3, the mixed-medium power generation system 24 of the third embodiment is combined with the nuclear power generation system 1 to form a mixed-medium cycle power generation plant 300 capable of generating power with high efficiency.

The nuclear power generation system 1 is exactly the same as that of the first embodiment described above, and the description thereof will be omitted.

The mixed-medium power generation system 24 generates electricity using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium, and the mixed medium is a heat exchanger 5 of the nuclear power generation system 1. After being heated in, the mixture is guided to a high-pressure separator (first separation means) 21 and separated into a high-concentration mixed medium vapor and a low-concentrated mixed medium liquid. The low-concentration mixed medium liquid separated by the high-pressure separator 21 is depressurized by a throttle valve (first depressurizing means) 25 and then supplied to a medium-pressure separator (second separating means) 26, and further supplied to a high-concentration mixed medium vapor And a low concentration mixed medium liquid.

The high-concentration mixed medium vapor separated by the high-pressure separator 21 is guided to the preceding stage of the mixed-medium turbine 27, and the high-concentrated mixed medium vapor separated by the medium-pressure separator 26 is guided to the middle stage of the mixed-medium turbine 27. He, mixed media turbine 2
7 is used to drive the generator 9 to generate electricity. Then, the high-concentration mixed-medium vapor, which is exhaust gas of the mixed-medium turbine 27, is guided to the suction part 13 b of the ejector 13. On the other hand, the low-concentration mixed medium liquid separated by the intermediate-pressure separator 26 is guided to the heat exchanger 28 and used for heating the condensate supplied from the pressurizing pump 15 and cooled. The pressure is reduced by a throttle valve (second pressure reducing means) 29 and then supplied to the drive nozzle 13 a of the ejector 13.

The drive nozzle 13a of the ejector 13 includes:
A reduced-diameter portion and an increased-diameter portion are provided, and have the effect of converting the low-concentration mixed medium liquid jetted from the driving nozzle 13a into a gas-liquid two-phase flow. Thereby, when the low-concentration mixed medium liquid is ejected from the drive nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase fluid into the main body nozzle 13c, the suction unit 1
The exhaust of the high-concentration mixed-medium vapor discharged from the mixed-medium turbine 27 guided to 3b is sucked into the main body nozzle 13c, mixed with the low-concentration mixed-medium liquid, and absorbed in the condenser (first condensate). (Means) 14.

The mixed medium supplied to the condenser 14 is cooled by heat exchange with a cooling medium such as seawater or the like to return to a liquid state. This condensed liquid is pressurized by a pressurizing pump (condensed liquid supply means) 15, supplied to a heat exchanger 28 and heated,
It is returned to the heat exchanger 5 of the nuclear power generation system 1.

Next, the effect of the mixed-medium power generation system of the third embodiment will be described.

As described above, in the mixed-medium power generation system 24 of the third embodiment, the low-concentration mixed-medium liquid supplied from the intermediate-pressure separator 26 is supplied to the high-speed gas-liquid two-phase The high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 27, is sucked, mixed, absorbed, and flows into the condenser 14. Thereby, the temperature is increased by the heat generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 27, is absorbed by the low-concentration mixed-medium liquid, and the pressure at the outlet of the mixed-medium turbine 27 increases. Not only can be prevented, but also by the suction effect of the ejector 13.
Therefore, the output of the mixed-medium turbine 27 can be increased.

The low-concentration mixed medium liquid is supplied to the ejector 13.
When the liquid is ejected from the driving nozzle 13b as a high-speed gas-liquid two-phase flow, the droplet diameter becomes about several tens of microns, so that the surface area of the droplet can be increased. Thus, the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 27, can be efficiently absorbed into the heat exchange section of the condenser 14 and flow into the condenser 14 at a high speed. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact to contribute to a reduction in the construction cost.

Fourth Embodiment Next, referring to FIG. 4, the structure and operation of a mixed-medium power generation system according to a fourth embodiment corresponding to claims 8 and 11 will be described. In the following description, the same reference numerals are used for the same parts as those in the above-described embodiments.

As shown in FIG. 4, the mixed-medium power generation system 32 of the fourth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42,
Respond to peak power demand during the day by defrosting ice produced and stored at night when peak power demand occurs during the day, and cooling the exhaust path from the mixed media turbine to increase the output of the mixed media turbine A mixed media cycle power plant 400 is made available.

The nuclear power generation system 1 has the first to
The description is omitted because it is completely the same as that of the third embodiment.

The mixed-medium power generation system 32 generates power using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium. At 5, the mixture is heated and becomes steam, and the mixed medium turbine 8 is operated. Then, the mixed medium turbine 8 drives the second generator 9 to generate power.

The mixed medium steam discharged from the mixed medium turbine 8 is used in a heat exchanger (first heat exchange means) 10 to heat a first condensate described later. The first condensate heated in the heat exchanger 10 is guided to a medium-pressure separator (separation means) 11 and separated into a high-concentration mixed medium vapor and a low-concentrated mixed medium liquid. Then, the low-concentration mixed medium liquid obtained from the intermediate pressure separator 11 is supplied to a throttle valve (first pressure reducing means) 12.
After the pressure is reduced in, it is supplied to the drive nozzle 13a of the ejector (first mixing and absorbing means) 13. In addition, the high-concentration mixed-medium vapor, which is exhaust gas of the mixed-medium turbine 8, is guided to the suction portion 13b of the ejector 13 after being cooled by heat exchange in the heat exchanger 10 and heat exchange in the cooling means 46 described later. I have.

The drive nozzle 13a of the ejector 13 includes
A reduced-diameter portion and an increased-diameter portion are provided, and have the effect of converting the low-concentration mixed medium liquid jetted from the driving nozzle 13a into a gas-liquid two-phase flow. Thereby, when the low-concentration mixed medium liquid is ejected from the drive nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase fluid into the main body nozzle 13c, the suction unit 1
The high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8 guided to 3b, is sucked into the main body nozzle 13c, mixed with the low-concentration mixed-medium liquid, and absorbed by the condenser (first).
(Recovery means) 14.

The mixed medium supplied to the condenser 14 is cooled by heat exchange with a cooling medium such as seawater, and is returned to the above-described first liquid. The first condensate is mixed with a third condensate described later, and then pressurized by a pressurizing pump (first condensate supply means) 15, and a part of the first condensate is supplied to the heat exchanger 10 and heated. After that, it is led to the medium pressure separator 11.
The remaining portion of the mixture of the first and third condensed liquids pressurized by the pressurizing pump 15 is guided to a heat exchanger (second heat exchanging means) 33 described later and heated. Is returned to the first heat exchanger 5 of the nuclear power generation system 1.

On the other hand, the high-concentration mixed medium vapor separated by the intermediate pressure separator 11 is guided to the heat exchanger 33 and cooled by heat exchange with the mixed liquid of the first and third condensed liquids. ,
In the condenser (second liquid return means) 34, the liquid is cooled by heat exchange with a cooling medium such as seawater, and condensed to form a second liquid return.

The second condensed liquid is guided to an expansion valve (adiabatic expansion means) 36 of the refrigerant production device 35 and adiabatically expanded to become a refrigerant whose temperature is greatly reduced. It is guided to a cooling device (ice producing means) 37 and used for producing ice. Then, the refrigerant whose temperature has increased due to heat exchange in the subcooling device 37 is guided to the suction portion of the ejector 38 provided in the refrigerant production device 35 to 38b.

On the other hand, a part of the low-concentration mixed medium liquid separated by the intermediate pressure separator 11 is depressurized by a throttle valve (second decompression means) 39 provided in the refrigerant production device 35 and then ejected by the ejector 38.
To the drive nozzle 38a. As a result, the low concentration mixed medium liquid becomes a high-speed gas-liquid two-phase flow,
When the refrigerant is ejected from the nozzle into the main body nozzle 38c, the refrigerant guided to the suction part 38b is sucked into the main body nozzle 38c, mixed with the low-concentration mixed medium liquid, and absorbed.

The mixed medium obtained from the ejector 38 is
The condenser (third condensing means) 40 is cooled by heat exchange with a cooling medium such as seawater in the condenser 40, and is cooled by the low-temperature high-concentration seawater separated in a subcooling release tank (ice producing means) 43 described later. After being cooled by the heat exchange in the exchanger 41, the liquid is condensed in the condenser 40 and becomes a third condensed liquid. Then, the third condensate is mixed with the first condensate obtained from the condenser 14 and supplied to the pressure pump 15.

The seawater supercooled by the supercooling device 37 of the ice producing device 42 is guided to the subcooling release tank 43 and separated into freshwater ice and high-concentration seawater. The freshwater ice is transferred to and stored in an ice storage tank (ice storage means) 44. The stored freshwater ice is thawed as needed to become cooling water, and is supplied to a heat exchanger (cooling means) 46 by a pressurizing pump (cooling water supply means) 45, where the high-density exhaust gas of the mixed medium turbine 8 is discharged. After being used for cooling the mixed medium vapor, it is led to a fresh water storage tank 47. Further, a part of the cooling water obtained by thawing the freshwater ice is taken out during the heat exchange in the heat exchanger 46, returned to the ice storage tank 44, and used for thawing the freshwater ice. The high-concentration seawater separated in the subcooling release tank 43 is guided to the heat exchanger 41 by the pressurizing pump 48, and is discharged to the ocean after being used to generate the third condensate.

When power demand is low, such as at night, fresh water ice produced by the ice producing device 42 is stored in an ice storage tank 44. When peak power demand occurs in the daytime, fresh water ice is produced by the ice producing device 42 and the fresh water ice stored in the ice storage tank 44 is thawed to obtain cooling water. The cooling water obtained by thawing the freshwater ice is supplied to the heat exchanger 46 by the pressure pump 45 and used for cooling the high-concentration mixed medium vapor which is the exhaust gas of the mixed medium turbine 8, and then the freshwater storage tank 47. And stored.

Next, the effect of the mixed-medium power generation system 32 of the fourth embodiment will be described.

As described above, the mixed-medium power generation system 32 of the fourth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. As a result, a second condensate, which is a high-concentration mixed medium liquid (ammonia liquid), is obtained using the thermal energy recovered from the exhaust gas of the mixed medium turbine 8, and the obtained second condensate is adiabatically expanded by the expansion valve 36. Thus, a refrigerant is produced, and ice produced using the obtained refrigerant can be stored in the ice storage tank 44. That is, the mixed-medium power generation system 32 of the fourth embodiment includes:
Since the thermal energy recovered from the exhaust gas of the mixed-medium turbine 8 is converted into the energy of the concentration difference of the mixed medium and reused, the energy use efficiency can be improved.

In addition, ice is manufactured and converted into latent heat when the power energy demand is low, such as at night, and stored, and when the power energy demand is high in the daytime, the stored ice is thawed to obtain cooling water. Then, the cooling water is supplied to the heat exchanger 46 installed at the outlet of the mixed medium turbine 8,
By cooling the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, to near zero degrees, the mixed-medium turbine 8 is cooled.
Therefore, it is possible to provide a mixed-medium power generation system that can operate in response to peak power demand.

Therefore, the refrigerant production device 35 and the ice production device 42 as in the fourth embodiment are installed in parallel with a power plant that has been conventionally used for base load operation, such as a nuclear power plant or a coal-fired power plant. By combining the mixed-medium power generation system 32 described above, it is possible to provide a mixed-medium cycle power generation plant that can cope with fluctuations in power demand. Furthermore, the need for facilities such as oil-fired power plants and pumped-storage power plants, which were required in the past to respond to fluctuations in power demand, is no longer necessary. The accompanying destruction of the natural environment can also be prevented.

Further, since the low-concentration mixed medium liquid obtained from the intermediate pressure separator 11 is ejected from the drive nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase flow, the droplet diameter is reduced to about several tens of microns. That is, the surface area of the droplet can be increased. Accordingly, the exhaust gas of the mixed medium turbine 8 that is the mixed medium vapor can be efficiently absorbed and allowed to flow into the heat exchange section of the condenser 14 at a high speed. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact to contribute to a reduction in the construction cost.

Similarly, also in the refrigerant production device 35, the low-concentration mixed medium liquid obtained from the intermediate-pressure separator 11 is ejected from the drive nozzle 38 a of the ejector 38 as a high-speed gas-liquid two-phase flow. 38b, the refrigerant introduced into the condenser 40b is sucked, mixed and absorbed.
And the construction cost can be reduced.

In addition, since seawater is used when producing ice, the cooling water obtained by thawing the ice can be used and then used as fresh water free of various bacteria. Also,
If the seawater used for ice production is deep cold seawater, concentrated seawater obtained at the time of producing ice can be used as a resource.

Fifth Embodiment Next, referring to FIG. 5, the structure and operation of a mixed-medium power generation system according to a fifth embodiment of the present invention will be described.

As shown in FIG. 5, the mixed medium power generation system 50 of the fifth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42,
A mixed medium cycle power plant 410 substantially similar to the fourth embodiment described above is formed. Therefore, in the following description, the same portions as those in the above-described fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 32 of the fourth embodiment described above, freshwater ice stored in the ice storage tank 44 of the ice making device 42 is thawed as necessary to be used as cooling water, The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero. Had to be done. On the other hand, in the mixed-medium power generation system 50 of the fifth embodiment, the ice storage tank 44
A cooling unit that supplies cooling water obtained by thawing fresh water ice stored in the ejector 13 is a cooling chamber 51 provided in the ejector 13.

That is, the fresh water ice stored in the ice storage tank 44 is thawed as necessary to form cooling water,
The pressure is supplied to a cooling chamber 51 provided in the ejector 13 by a pressure pump 45. The cooling water is used for cooling the melting heat generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is absorbed and mixed in the low-concentration mixed-medium liquid obtained from the medium-pressure separator 11. After that, it is led to the freshwater storage tank 47. A part of the cooling water used for cooling the heat of melting is partially taken out of the cooling chamber 51 provided in the ejector 13 and returned to the ice storage tank 44 to be used for thawing fresh water ice. .

That is, the mixed-medium power generation system 50 of the fifth embodiment comprises a refrigerant production device 35 and an ice production device 4
2 are juxtaposed. The cooling water supplied to the cooling chamber 51 of the ejector 13 absorbs and mixes the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, with the low-concentration mixed-medium liquid obtained from the medium-pressure separator 11. To reduce the vapor pressure at the outlet of the mixed-medium turbine 8 to increase the output of the mixed-medium turbine 8. Therefore, the mixed-medium power generation system 50 of the fifth embodiment can achieve exactly the same effects as the mixed-medium power generation system 32 of the fourth embodiment described above.

Sixth Embodiment Next, referring to FIG. 6, the structure and operation of a mixed-medium power generation system according to a sixth embodiment of the present invention will be described.

As shown in FIG. 6, the mixed medium power generation system 52 of the sixth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42,
A mixed medium cycle power plant 420 substantially similar to that of the fourth embodiment is formed. Therefore, in the following description, the same portions as those in the above-described fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 32 of the above-described fourth embodiment, the freshwater ice stored in the ice storage tank 44 of the ice making device 42 is thawed as necessary to be used as cooling water, The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero. Had to be done. On the other hand, in the mixed medium power generation system 52 of the sixth embodiment, the ice storage tank 44
A cooling means for supplying cooling water obtained by thawing freshwater ice stored in the condenser is a heat exchanger 53 provided in the condenser 14.

That is, the freshwater ice stored in the ice storage tank 44 is thawed as necessary to produce cooling water,
The pressure is supplied to a heat exchanger 53 provided in the condenser 14 by a pressure pump 45. The cooling water is used for cooling the melting heat generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is absorbed and mixed in the low-concentration mixed-medium liquid obtained from the medium-pressure separator 11. After that, it is led to the freshwater storage tank 47. A part of the cooling water which has been heated and used for cooling the melting heat is partially taken out of the heat exchanger 53, returned to the ice storage tank 44, and used for thawing fresh water ice.

That is, the mixed-medium power generation system 52 of the sixth embodiment comprises a refrigerant production device 35 and an ice production device 4.
2 are juxtaposed. The sixth in the condenser 14
The cooling water supplied to the heat exchanger 53 converts the high-concentration mixed medium vapor exhausted from the mixed medium turbine 8 into a medium-pressure separator 11.
Cooling the melting heat generated when absorbing and mixing into the low-concentration mixed-medium liquid obtained from the above, lowers the vapor pressure at the outlet of the mixed-medium turbine 8, and increases the output of the mixed-medium turbine 8. Fulfill. Therefore, the mixed-medium power generation system 52 of the sixth embodiment can have exactly the same effects as the mixed-medium power generation system 32 of the fourth embodiment described above.

Seventh Embodiment Next, with reference to FIG. 7, the structure and operation of a mixed-medium power generation system according to a seventh embodiment of the present invention will be described.

As shown in FIG. 7, the mixed-medium power generation system 54 of the seventh embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42,
A mixed medium cycle power plant 430 substantially similar to the fourth embodiment described above is formed. Therefore, in the following description, the same portions as those in the above-described fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 32 of the above-described fourth embodiment, the freshwater ice stored in the ice storage tank 44 of the ice making device 42 is thawed as necessary to be used as cooling water, The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero. Had to be done. In contrast, in the mixed-medium power generation system 54 of the seventh embodiment, the ice storage tank 44
Cooling means for supplying cooling water obtained by thawing freshwater ice stored in the medium for cooling the low-concentration mixed medium liquid obtained from the intermediate pressure separator 11 and supplied to the drive nozzle 13a of the ejector 13 The heat exchanger 55 is used.

That is, the freshwater ice stored in the ice storage tank 44 is thawed as necessary to form cooling water,
The pressure is supplied to a heat exchanger 55 interposed between the throttle valve 12 and the driving nozzle 13 a of the ejector 13 by the pressurizing pump 45. Then, the cooling water is used for cooling the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the ejector 13, and then guided to the freshwater storage tank 47. Further, a part of the cooling water which has been heated and used for cooling the heat of dissolution is supplied to the heat exchanger 55.
A part of it is taken out from the middle and returned to the ice storage tank 44 to be used for thawing fresh water ice.

That is, the mixed-medium power generation system 54 of the seventh embodiment comprises a refrigerant production device 35 and an ice production device 4.
2 are juxtaposed. Since the cooling water supplied to the heat exchanger 55 cools the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the ejector 13, the cooling water supplied to the suction unit 13 a of the ejector 13 is At the same time as increasing the absorptive power when a certain high-concentration mixed medium vapor is sucked and mixed and absorbed, the melting heat generated at that time is reduced, and the vapor pressure at the outlet of the mixed medium turbine 8 is reduced, so that the mixing is performed. It serves to increase the output of the media turbine 8. Therefore, the mixed-medium power generation system 54 of the seventh embodiment can achieve exactly the same effects as the mixed-medium power generation system 32 of the fourth embodiment described above.

Eighth Embodiment Next, referring to FIG. 8, the structure and operation of a mixed-medium power generation system according to an eighth embodiment corresponding to claims 9 and 11 will be described.

The mixed medium power generation system 60 of the eighth embodiment shown in FIG. 8 is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and is a mixed medium similar to that of the fourth embodiment described above. A cycle power plant 500 is formed. Therefore, in the following description, the same reference numerals will be used for the same portions as those in the above-described fourth embodiment, and differences will be mainly described.

Nuclear power generation system 1, refrigerant production device 35
The ice manufacturing device 42 is completely the same as that of the above-described fourth embodiment, and therefore the description thereof is omitted.

The mixed-medium power generation system 6 of the eighth embodiment
Numeral 0 denotes power generation using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium. This mixed medium is heated in a heat exchanger (heating source) 5 of the nuclear power generation system 1. Then, the mixture is guided to a high-pressure separator (separating means) 21 and separated into a high-concentration mixed medium vapor and a low-concentration mixed medium liquid. The high-concentration mixed-media vapor separated by the high-pressure separator 21 is guided to the mixed-medium turbine 8, and is used to drive the generator 9 to generate power. Then, the high-concentration mixed medium vapor, which is the exhaust gas of the mixed medium turbine 8,
It is guided to the suction part 13b of the ejector 13.

A part of the high-concentration mixed-medium vapor separated by the high-pressure separator 21 is taken out while being guided to the mixed-medium turbine 8, and is extracted by a heat exchanger (second condensate heating means) 61.
Is used for heating a first condensate described later, and is cooled by a cooling medium such as seawater in a condenser (second condensate means) 62 and condensed to form a second condensate. Then, the second condensed liquid is guided to the expansion valve 36 of the refrigerant production device 35 and is adiabatically expanded to become a refrigerant whose temperature is greatly reduced. Then, the supercooling device (ice production means) of the ice production device 42 3
It is led to 7 and used for the production of ice.

On the other hand, the low-concentration mixed medium liquid separated by the high-pressure separator 21 is led to a heat exchanger (first condensate heating means) 22 and supplied from a pressure pump (condensate supply means) 15. After being used to heat the mixture of the first and third condensates,
The pressure is reduced by a throttle valve (first pressure reducing means) 12 and then supplied to a driving nozzle 13 a of an ejector 13. The drive nozzle 13a of the ejector 13 is provided with a reduced-diameter portion and an increased-diameter portion, and acts to convert a low-concentration mixed medium liquid jetted from the drive nozzle 13a into a gas-liquid two-phase flow. As a result, the low-concentration mixed medium liquid becomes a high-speed gas-liquid two-phase fluid from the drive nozzle 13a of the
3c, the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8 guided to the suction portion 13b, is sucked into the main body nozzle 13c, mixed with the low-concentration mixed-medium liquid, and absorbed. The liquid is supplied to a condenser (first liquid return means) 14.

The mixed medium obtained from the ejector 13 is cooled by heat exchange with a cooling medium such as seawater and the like.
Within 4, the first reconstitution is made. This first condensate is supplied to the pressure pump 15
After being pressurized, supplied to the heat exchanger 22 and heated, it is returned to the heat exchanger 5 of the nuclear power generation system 1.

On the other hand, a part of the low-concentration mixed medium liquid separated by the high-pressure separator 21 is guided to the heat exchanger 22 and heated, and then the pressure reducing valve (second pressure reducing means) 39 of the refrigerant production device 35 is used.
, And after being reduced in pressure, is guided to a drive nozzle 38 a of an ejector (second mixing and absorbing means) 38. Ejector 3
The drive nozzle 38a of FIG. 8 is provided with a reduced diameter portion and an increased diameter portion, and has a function of converting the low-concentration mixed medium liquid ejected from the drive nozzle 38a into a gas-liquid two-phase flow. Accordingly, when the low-concentration mixed medium liquid is jetted from the driving nozzle 38a into the main body nozzle 38c as a high-speed gas-liquid two-phase flow, the refrigerant guided to the suction part 38b is sucked into the main body nozzle 38c, and the low-concentration mixed medium liquid It is absorbed by being mixed with the mixed medium liquid. The mixed medium obtained from the ejector 38 is cooled by heat exchange with a cooling medium such as seawater in the condenser (third liquid recovery means) 40 and is separated in a subcooling release tank (ice manufacturing means) 43 described later. Exchanger 4 with high-concentration seawater of low temperature
After being cooled by the heat exchange in 1, the liquid is condensed in the condenser 40 and becomes the third condensed liquid. And this 3rd condensate
It is mixed with the first condensate obtained from the condenser 14 and supplied to the pressure pump 15.

The seawater supercooled by the supercooling device 37 of the ice making device 42 is guided to the subcooling release tank 43 and is separated into freshwater ice and high-concentration seawater. The freshwater ice is transferred to and stored in an ice storage tank (ice storage means) 44. The stored freshwater ice is thawed as needed to become cooling water, and is supplied to a heat exchanger (cooling means) 46 by a pressurizing pump (cooling water supply means) 45, where the high-density exhaust gas of the mixed medium turbine 8 is discharged. After being used for cooling the mixed medium vapor, it is led to a fresh water storage tank 47. Further, a part of the cooling water which has been supplied to the heat exchanger (cooling means) 46 and raised in temperature is taken out during the heat exchange, returned to the ice storage tank 44 and used for thawing fresh water ice.

Next, effects of the mixed-medium power generation system 60 according to the eighth embodiment will be described.

As described above, the mixed-medium power generation system 60 of the eighth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. Thus, the high-concentration mixed medium vapor obtained from the high-pressure separator 21 is cooled and
A second condensate is obtained, and the obtained second condensate is adiabatically expanded in the expansion valve 36 of the refrigerant production device 35 to produce a refrigerant, and ice produced in the ice production device 42 is iced using the obtained refrigerant. It can be stored in the storage tank 44.

[0108] Ice is manufactured and converted into latent heat when the power energy demand is low, such as at night, and stored, and the stored ice is thawed to obtain cooling water when the power energy demand is high during the day. Then, the cooling water is supplied to the heat exchanger 46 installed at the outlet of the mixed medium turbine 8, and the high-concentration mixed medium vapor, which is the exhaust gas of the mixed medium turbine 8, is cooled to near zero degree, whereby the mixed medium turbine 8 is cooled. Since the output can be increased, it is possible to provide a mixed-medium power generation system that can operate in response to peak power demand.

Therefore, as in the eighth embodiment, the refrigerant production device 35 and the ice production device 42 are provided side by side in a power plant that has been conventionally used for base load operation, such as a nuclear power plant or a coal-fired power plant. By combining the mixed-medium power generation system 60, it is possible to provide a mixed-medium power generation system that can cope with fluctuations in power demand. Furthermore, the need for equipment such as oil-fired power plants and pumped-storage power plants, which were required in the past to respond to fluctuations in power demand, is no longer necessary. The accompanying destruction of the natural environment can also be prevented.

Further, since the low-concentration mixed medium liquid obtained from the high-pressure separator 21 is ejected from the drive nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase flow, the droplet diameter becomes about several tens of microns, The surface area of the droplet can be increased. As a result, the mixed medium vapor, which is the exhaust gas of the mixed medium turbine 8, can be efficiently absorbed and flown into the heat exchange section of the condenser 14 at a high speed. Therefore,
Since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact and contribute to a reduction in the construction cost.

Similarly, in the refrigerant producing apparatus 35, the low-concentration mixed medium liquid obtained from the high-pressure separator 21 is ejected from the drive nozzle 38a of the ejector 38 as a high-speed gas-liquid two-phase flow, and the suction section 38b of the ejector 38 Since the refrigerant introduced into the condenser is sucked, mixed and absorbed, the condenser 40
And the construction cost can be reduced.

[0112] Since seawater is used when producing ice, the cooling water obtained by thawing the ice can be used, and then resources can be used as fresh water free of various bacteria. Also,
If the seawater used for ice production is deep cold seawater, concentrated seawater obtained at the time of producing ice can be used as a resource.

Ninth Embodiment Next, referring to FIG. 9, the structure and operation of a mixed-medium power generation system according to a ninth embodiment of the present invention will be described.

As shown in FIG. 9, the mixed medium power generation system 63 of the ninth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42,
A mixed medium cycle power plant 510 substantially similar to the eighth embodiment described above is formed. Therefore, in the following description, the same portions as those in the above-described eighth embodiment will be denoted by the same reference numerals, and the description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 60 according to the eighth embodiment described above, fresh water ice stored in the ice storage tank 44 of the ice making device 42 is thawed as necessary to produce cooling water, and The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero degrees. It was like. On the other hand, in the mixed-medium power generation system 63 of the ninth embodiment, a cooling unit that supplies cooling water obtained by thawing freshwater ice stored in the ice storage tank 44 is provided in the ejector 13. The room 51 is provided.

That is, the fresh water ice stored in the ice storage tank 44 is thawed as needed to form cooling water,
The pressure is supplied to a cooling chamber 51 provided in the ejector 13 by a pressure pump 45. The cooling water is used to cool the heat of dissolution generated when the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is absorbed and mixed in the concentrated-mixed-medium liquid obtained from the medium-pressure separator 11. After that, it is led to the freshwater storage tank 47. A part of the cooling water used for cooling the melting heat is taken out of the cooling chamber 51 provided in the ejector 13 and returned to the ice storage tank 44 to be used for thawing fresh water ice. .

That is, the mixed-medium power generation system 63 of the ninth embodiment comprises a refrigerant production device 35 and an ice production device 4.
2 are juxtaposed. The cooling water supplied to the cooling chamber 51 of the ejector 13 absorbs the high-concentration mixed-medium vapor exhausted from the mixed-medium turbine 8 into the low-concentration mixed-medium liquid obtained from the high-pressure separator 21 and mixes the same. It serves to cool the generated heat of fusion, reduce the vapor pressure at the outlet of the mixed-medium turbine 8, and increase the output of the mixed-medium turbine 8. Therefore, the mixed-medium power generation system 63 of the ninth embodiment can provide the same effects as the mixed-medium power generation system 60 of the eighth embodiment described above.

Tenth Embodiment Next, with reference to FIG. 10, the structure and operation of a mixed-medium power generation system according to a tenth embodiment corresponding to claims 9 and 13 will be described.

As shown in FIG. 10, the mixed medium power generation system 64 of the tenth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and is substantially the same as the eighth embodiment described above. A similar mixed media cycle power plant 520 is formed. Therefore, in the following description, the same portions as those in the above-described eighth embodiment will be denoted by the same reference numerals, and the description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 60 according to the eighth embodiment described above, freshwater ice stored in the ice storage tank 44 of the ice producing device 42 is thawed as necessary to be used as cooling water, The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero. Had to be done. On the other hand, in the mixed medium power generation system 64 of the tenth embodiment, the ice storage tank 4
The cooling means for supplying the cooling water obtained by thawing the freshwater ice stored in 4 is a heat exchanger 53 provided in the condenser 14.

That is, the fresh water ice stored in the ice storage tank 44 is thawed as needed to form cooling water,
The pressure is supplied to a heat exchanger 53 provided in the first condenser 14 by a pressure pump 45. The cooling water is used for cooling the dissolution heat generated when the high-concentration mixed medium vapor exhausted from the mixed-medium turbine 8 is absorbed and mixed with the low-concentration mixed medium liquid obtained from the high-pressure separator 21. After that, it is led to a freshwater storage tank 47. Further, a part of the cooling water used for cooling the heat of dissolution is supplied to the heat exchanger 53 provided in the condenser 14.
A part of it is taken out from the middle and returned to the ice storage tank 44 to be used for thawing fresh water ice.

That is, the mixed-medium power generation system 64 of the tenth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. Then, the cooling water supplied to the heat exchanger 53 in the condenser 14 is mixed with the mixed medium turbine 8.
The heat of dissolution generated when the high-concentration mixed medium vapor, which is the exhaust gas, is absorbed and mixed with the low-concentration mixed medium liquid obtained from the high-pressure separator 21 is cooled, and the vapor pressure at the outlet of the mixed medium turbine 8 is reduced. As a result, it serves to increase the output of the mixed medium turbine 8. Therefore, the mixed-medium power generation system 64 of the tenth embodiment can provide the same effects as the mixed-medium power generation system 60 of the eighth embodiment.

Eleventh Embodiment Next, with reference to FIG. 11, the structure and operation of a mixed-medium power generation system according to an eleventh embodiment corresponding to claims 9 and 14 will be described.

The mixed-medium power generation system 65 of the eleventh embodiment shown in FIG. 11 is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and has almost the same mixing power as the eighth embodiment described above. A medium cycle power plant 530 is formed. Therefore, in the following description, the same portions as those in the above-described eighth embodiment will be denoted by the same reference numerals, and the description thereof will be omitted, and differences will be described in detail.

In the mixed-medium power generation system 32 of the eighth embodiment described above, freshwater ice stored in the ice storage tank 44 of the ice-making apparatus 42 is thawed as needed to form cooling water, and The output of the mixed-medium turbine 8 is increased by cooling the high-concentration mixed-medium vapor, which is supplied to the heat exchanger (cooling means) 46 installed at the outlet of the turbine 8 and is exhaust gas of the mixed-medium turbine 8, to near zero. Had to be done. On the other hand, in the mixed medium power generation system 65 of the eleventh embodiment, the ice storage tank 4
The cooling means for supplying the cooling water obtained by thawing the freshwater ice stored in 4 is provided with a heat for cooling the low-concentration mixed medium liquid obtained from the medium-pressure separator 11 supplied to the drive nozzle 13 a of the ejector 13. An exchanger 55 is provided.

That is, the freshwater ice stored in the ice storage tank 44 is thawed as necessary to form cooling water,
The pressure is supplied to a heat exchanger 55 interposed between the throttle valve 12 and the driving nozzle 13 a of the ejector 13 by the pressurizing pump 45. Then, the cooling water is used for cooling the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the ejector 13, and then guided to the freshwater storage tank 47. Further, a part of the cooling water which has been heated and used for cooling the heat of dissolution is supplied to the heat exchanger 55.
A part of it is taken out from the middle and returned to the ice storage tank 44 to be used for thawing fresh water ice.

That is, the mixed-medium power generation system 65 of the eleventh embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. The cooling water supplied to the heat exchanger 55 is supplied to the drive nozzle 13 a of the ejector 13.
To cool the low-concentration mixed-medium liquid supplied to the ejector 13, so that the high-concentration mixed-medium vapor, which is the exhaust of the mixed-medium turbine 8 guided to the suction portion 13 a of the ejector 13, is sucked, mixed, and absorbed. At the same time, it serves to reduce the heat of dissolution generated at that time, reduce the vapor pressure at the outlet of the mixed medium turbine 8, and increase the output of the mixed medium turbine 8. Therefore, the mixed-medium power generation system 65 of the eleventh embodiment can achieve the same effects as the mixed-medium power generation system 60 of the eighth embodiment described above.

Twelfth Embodiment Next, with reference to FIG. 12, the structure and operation of a mixed-medium power generation system according to a twelfth embodiment corresponding to claims 10 and 11 will be described.

The mixed-medium power generation system 70 of the twelfth embodiment shown in FIG. 12 is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and is similar to that of the eighth embodiment described above. A medium cycle power plant 600 is formed. Therefore, in the following description, the same reference numerals will be used for the same portions as those in the above-described eighth embodiment, and differences will be mainly described.

Nuclear power generation system 1, refrigerant production device 35
The ice manufacturing device 42 is completely the same as that of the above-described fourth embodiment, and therefore the description thereof is omitted.

The mixed-medium power generation system 70 of the twelfth embodiment generates power using a mixed medium obtained by mixing ammonia as a low-boiling medium and water as a high-boiling medium. After being heated in the first heat exchanger (heating source) 5, the high-pressure separator (first
The mixture is guided to a separation means 21 and separated into a high concentration mixed medium vapor and a low concentration mixed medium liquid. The high-concentration mixed medium vapor separated by the high-pressure separator 21 is guided to the mixed medium turbine 8,
It is used to drive the generator 9 to generate power. The high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is supplied to the suction unit 1
3b.

On the other hand, the low-concentration mixed medium liquid separated by the high-pressure separator 21 is depressurized by the throttle valve (first depressurizing means) 25, and then guided to the medium-pressure separator (second separating means) 26, where the high-pressure mixed liquid is again discharged. It is separated into a concentrated mixed medium vapor and a low concentrated mixed medium liquid.
The high-concentration mixed medium vapor separated by the intermediate-pressure separator 26 is used in a heat exchanger (second condensate heating means) 71 for heating the mixed liquid of the first condensate and the third condensate, and is condensed. In the vessel (second liquid returning means) 72, the liquid is cooled by heat exchange with a cooling medium such as seawater and condensed to form a second liquid. Then, the second condensed liquid is guided to an expansion valve (adiabatic expansion means) 36 of the refrigerant production device 35 and adiabatically expanded to become a refrigerant whose temperature is greatly reduced. It is guided to an apparatus (ice production means) 37 and used for producing ice.

On the other hand, the low-concentration mixed medium liquid obtained from the intermediate-pressure separator 26 is led to the heat exchanger (first condensate heating means) 28 and supplied from the pressure pump (condensate supply means) 15. After being used to heat the mixture of the first and third condensates,
The pressure is reduced by a throttle valve (second pressure reducing means) 29 and then supplied to the drive nozzle 13 a of the ejector 13. Ejector 1
The third drive nozzle 13a is provided with a reduced diameter portion and an increased diameter portion, and has a function of converting the low-concentration mixed medium liquid ejected from the drive nozzle 13a into a gas-liquid two-phase flow. As a result, when the low-concentration mixed medium liquid is jetted from the drive nozzle 13a into the main body nozzle 13c as a high-speed gas-liquid two-phase flow, the high-concentration mixed medium, which is the exhaust gas of the mixed medium turbine 8 guided to the suction portion 13b, The medium vapor is sucked into the main body nozzle 13c, mixed with the low-concentration mixed medium liquid, and absorbed.

The mixed medium obtained from the ejector 13 is
It is cooled by heat exchange with a cooling medium such as seawater and becomes the first condensate in the condenser (first condensing means) 14. The first condensate is mixed with the third condensate and then pressurized by the pressurizing pump 15, supplied to the heat exchanger 71 and the heat exchanger 28, heated, and then combined to form the nuclear power generation system 1. Is returned to the heat exchanger 5.

A part of the low-concentration mixed medium liquid separated by the intermediate pressure separator 26 and heated by the heat exchanger 28 is guided to a pressure reducing valve (third pressure reducing means) 39 of the refrigerant production device 35. After the pressure is reduced, it is guided to the drive nozzle 38 a of the ejector 38. The drive nozzle 38a of the ejector 38 is provided with a reduced diameter portion and an increased diameter portion.
The low-concentration mixed-medium liquid ejected from the liquid flows into a gas-liquid two-phase flow. Accordingly, when the low-concentration mixed medium liquid is jetted from the drive nozzle 38a into the main body nozzle 38c as a high-speed gas-liquid two-phase flow, the refrigerant guided to the suction part 38b is sucked into the main body nozzle 38c, and the low-concentration mixed It is mixed with the medium and absorbed. The mixed medium obtained from the second ejector 38 is
The condenser (third condensing means) 40 is cooled by heat exchange with a cooling medium such as seawater in the condenser 40, and is cooled by the low-temperature high-concentration seawater separated in a subcooling release tank (ice producing means) 43 described later. After being cooled by the heat exchange in the exchanger 41, the liquid is condensed in the condenser 40 and becomes a third condensed liquid. Then, the third condensate is mixed with the first condensate obtained from the condenser 14 and supplied to the pressure pump 15.

The seawater supercooled by the supercooling device 37 of the ice making device 42 is guided to the subcooling release tank 43 and separated into freshwater ice and high-concentration seawater. The freshwater ice is transferred to and stored in an ice storage tank (ice storage means) 44. The stored freshwater ice is thawed as needed to become cooling water, and is supplied to a heat exchanger (cooling means) 46 by a pressurizing pump 45.
After being used to cool the high-concentration mixed-medium vapor discharged from the mixed-medium turbine 8, it is guided to a freshwater storage tank 47. Further, a part of the cooling water supplied to the heat exchanger 46 and heated up is taken out during the heat exchange, returned to the ice storage tank 44, and used for thawing fresh water ice.

Next, effects of the mixed-medium power generation system 70 according to the twelfth embodiment will be described.

As described above, the mixed-medium power generation system 70 of the twelfth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. Thereby, the high-concentration mixed medium vapor obtained from the intermediate-pressure separator 26 is cooled to obtain a second condensate, and the obtained second condensate is adiabatically expanded in the expansion valve 36 of the refrigerant production device 35. A refrigerant can be produced, and ice produced in the ice producing device 42 can be stored in the ice storage tank 44 by using the obtained refrigerant.

[0139] Ice is manufactured and converted into latent heat when the power energy demand is low, such as at night, and stored, and the stored ice is thawed to obtain cooling water when the daytime power energy demand is high. Then, the cooling water is supplied to the heat exchanger 46 installed at the outlet of the mixed medium turbine 8, and the high-concentration mixed medium vapor, which is the exhaust gas of the mixed medium turbine 8, is cooled to near zero degree, whereby the mixed medium turbine 8 is cooled. Since the output can be increased, it is possible to provide a mixed-medium power generation system that can operate in response to peak power demand.

Therefore, the refrigerant production device 35 and the ice production device 42 as in the twelfth embodiment are juxtaposed to a power plant conventionally used for base load operation such as a nuclear power plant or a coal-fired power plant. By combining the mixed-medium power generation systems 70, it is possible to provide a mixed-medium power generation system that can cope with fluctuations in power demand. Furthermore, the need for equipment such as oil-fired power plants and pumped-storage power plants, which were required in the past to respond to fluctuations in power demand, is no longer necessary. The accompanying destruction of the natural environment can also be prevented.

Further, since the low-concentration mixed medium liquid obtained from the intermediate pressure separator 26 is ejected from the driving nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase flow, the droplet diameter becomes about several tens of microns. That is, the surface area of the droplet can be increased. Accordingly, the exhaust gas of the mixed medium turbine 8 that is the mixed medium vapor can be efficiently absorbed and allowed to flow into the heat exchange section of the condenser 14 at a high speed. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact to contribute to a reduction in the construction cost.

Similarly, in the refrigerant producing apparatus 35, the low-concentration mixed medium liquid obtained from the intermediate pressure separator 26 is ejected from the drive nozzle 38a of the ejector 38 as a high-speed gas-liquid two-phase flow. 38b, the refrigerant introduced into the condenser 40b is sucked, mixed and absorbed.
And the construction cost can be reduced.

[0143] Since seawater is used when producing ice, the cooling water obtained by thawing the ice can be used and then used as fresh water free of various bacteria. Also,
If the seawater used for ice production is deep cold seawater, concentrated seawater obtained at the time of producing ice can be used as a resource.

Thirteenth Embodiment Next, the structure and operation of a mixed-medium power generation system according to a thirteenth embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 13, the mixed medium power generation system 73 of the thirteenth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and is substantially the same as the twelfth embodiment described above. A similar mixed media cycle power plant 610 is formed. Therefore, in the following description, the same parts as those in the twelfth embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted. Differences will be described in detail.

In the mixed-medium power generation system 70 according to the twelfth embodiment, the ice storage tank 44 of the ice producing device 42 is used.
The freshwater ice stored in the mixing medium is thawed as needed to produce cooling water, and is supplied to a heat exchanger (cooling means) 46 installed at the outlet of the mixing medium turbine 8, and the exhaust gas of the mixing medium turbine 8 By cooling a high-concentration mixed-medium vapor to near zero, the output of the mixed-medium turbine 8 is increased. On the other hand, in the mixed-medium power generation system 73 of the thirteenth embodiment, a cooling means for supplying cooling water obtained by thawing freshwater ice stored in the ice storage tank 44 is provided in the ejector 13. Room 51
And

That is, the freshwater ice stored in the ice storage tank 44 is thawed as necessary to produce cooling water,
The pressure is supplied to a cooling chamber 51 provided in the ejector 13 by a pressure pump 45. The cooling water converts the high-concentration mixed medium vapor exhausted from the mixed medium turbine 8 into a medium-pressure separator 26.
After being used to cool the heat of dissolution generated upon absorption and mixing in the low-concentration mixed medium liquid obtained from the above, it is guided to the freshwater storage tank 47. A part of the cooling water used for cooling the melting heat is taken out of the cooling chamber 51 provided in the ejector 13 and returned to the ice storage tank 44 to be used for thawing fresh water ice. .

That is, the mixed-medium power generation system 73 of the thirteenth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. The cooling water supplied to the cooling chamber 51 of the ejector 13 is mixed with the mixed medium turbine 8.
The heat of dissolution generated when the high-concentration mixed-medium vapor exhausted from the mixer is absorbed and mixed with the low-concentration mixed-medium liquid obtained from the intermediate-pressure separator 26 is cooled, and the vapor pressure at the outlet of the mixed-medium turbine 8 is reduced. It serves to decrease and increase the output of the mixed media turbine 8. Therefore, the mixed-medium power generation system 73 of the thirteenth embodiment has the same effects as the mixed-medium power generation system 70 of the twelfth embodiment.

Fourteenth Embodiment Next, referring to FIG. 14, the structure and operation of a mixed medium power generation system according to a fourteenth embodiment of the present invention will be described.

As shown in FIG. 14, the mixed medium power generation system 74 of the fourteenth embodiment is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and is substantially the same as the twelfth embodiment described above. A similar mixed media cycle power plant 620 is formed. Therefore, in the following description, the same parts as those in the twelfth embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted. Differences will be described in detail.

In the mixed-medium power generation system 70 according to the twelfth embodiment, the ice storage
The freshwater ice stored in the mixing medium is thawed as needed to produce cooling water, and is supplied to a heat exchanger (cooling means) 46 installed at the outlet of the mixing medium turbine 8, and the exhaust gas of the mixing medium turbine 8 By cooling a high-concentration mixed-medium vapor to near zero, the output of the mixed-medium turbine 8 is increased. On the other hand, in the mixed-medium power generation system 74 of the fourteenth embodiment, cooling means for supplying cooling water obtained by thawing freshwater ice stored in the ice storage tank 44 is provided in the condenser 14. Heat exchanger 53
And

That is, the fresh water ice stored in the ice storage tank 44 is thawed as needed to produce cooling water,
The pressure is supplied to a heat exchanger 53 provided in the condenser 14 by a pressure pump 45. The cooling water converts the high-concentration mixed medium vapor exhausted from the mixed medium turbine 8 into a medium-pressure separator 26.
After being used to cool the heat of dissolution generated upon absorption and mixing in the low-concentration mixed medium liquid obtained from the above, it is guided to the freshwater storage tank 47. A part of the cooling water which has been heated and used for cooling the melting heat is partially taken out of the heat exchanger 53, returned to the ice storage tank 44, and used for thawing fresh water ice.

That is, the mixed-medium power generation system 74 according to the fourteenth embodiment has the refrigerant production device 35 and the ice production device 42 arranged side by side. Then, the cooling water supplied to the heat exchanger 53 in the condenser 14 is mixed with the mixed medium turbine 8.
The heat of dissolution generated when the high-concentration mixed-medium vapor exhausted from the mixer is absorbed and mixed with the low-concentration mixed-medium liquid obtained from the intermediate-pressure separator 26 is cooled, and the vapor pressure at the outlet of the mixed-medium turbine 8 is reduced. It serves to decrease and increase the output of the mixed media turbine 8. Therefore, the mixed-medium power generation system 74 of the fourteenth embodiment has the same effects as the mixed-medium power generation system 70 of the twelfth embodiment.

Fifteenth Embodiment The structure and operation of a mixed-medium power generation system according to a fifteenth embodiment of the present invention will now be described with reference to FIG.

The mixed medium power generation system 75 of the fifteenth embodiment shown in FIG. 15 is combined with the nuclear power generation system 1, the refrigerant production device 35 and the ice production device 42, and has almost the same mixing power as the twelfth embodiment. A medium cycle power plant 630 is formed. Therefore, in the following description, the same parts as those in the twelfth embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted. Differences will be described in detail.

In the mixed-medium power generation system 70 according to the twelfth embodiment, the ice storage tank 44 of the ice producing device 42 is used.
The freshwater ice stored in the mixing medium is thawed as needed to produce cooling water, and is supplied to a heat exchanger (cooling means) 46 installed at the outlet of the mixing medium turbine 8, and the exhaust gas of the mixing medium turbine 8 By cooling a high-concentration mixed-medium vapor to near zero, the output of the mixed-medium turbine 8 is increased. On the other hand, in the mixed-medium power generation system 75 of the fifteenth embodiment, the cooling means for supplying the cooling water obtained by thawing the freshwater ice stored in the ice storage tank 44 is provided by the drive nozzle 13 a of the ejector 13.
Is a heat exchanger 55 for cooling the low-concentration mixed medium liquid supplied to the heat exchanger 55.

That is, the fresh water ice stored in the ice storage tank 44 is thawed as necessary to produce cooling water,
The heat is supplied from a pressure pump 45 to a heat exchanger 55 interposed between the throttle valve 29 and the drive nozzle 13 a of the ejector 13. Then, the cooling water is used to cool the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the first ejector 13, and then is guided to the freshwater storage tank 47. A part of the cooling water that has been heated and used for cooling the melting heat is partially taken out of the heat exchanger 55, returned to the ice storage tank 44, and used for thawing fresh water ice.

The mixed-medium power generation system 75 according to the fifteenth embodiment has a refrigerant production device 35 and an ice production device 42 arranged side by side. Since the cooling water supplied to the heat exchanger 55 cools the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the first ejector 13, the mixed medium turbine guided to the suction portion 13 b of the first ejector 13 , While absorbing and mixing and absorbing the high-concentration mixed-medium vapor exhausted from the exhaust gas 8, reducing the heat of dissolution generated at that time, and lowering the vapor pressure at the outlet of the mixed-medium turbine 8. As a result, it serves to increase the output of the mixed medium turbine 8. Therefore, the mixed-medium power generation system 75 of the fifteenth embodiment has the same effects as the mixed-medium power generation system 70 of the twelfth embodiment.

Sixteenth Embodiment Next, with reference to FIG. 16, the structure and operation of a mixed medium power generation system according to a sixteenth embodiment corresponding to the eleventh and fifteenth aspects will be described.

In the mixed medium power generation system 76 of the sixteenth embodiment shown in FIG. 16, the refrigerant production device 35 and the ice production device 42 in the mixed medium power generation system 60 described in the eighth embodiment are replaced by a refrigerant production device 80, respectively. And an ice making device 90. Therefore, in the following description, the same reference numerals will be used for the same portions as those in the above-described eighth embodiment, and differences will be mainly described.

Since the nuclear power generation system 1 is completely the same as that of the above-described eighth embodiment, the description is omitted.

In the mixed-medium power generation system 60 according to the eighth embodiment described above, the second condensate obtained by condensing the high-concentration mixed-medium vapor separated by the high-pressure separator 21 is supplied to the expansion valve 36 of the refrigerant production device 35. To produce an ammonia refrigerant by adiabatically expanding the ammonia refrigerant, and then direct the ammonia refrigerant to the ice producing device 42 to produce fresh water ice. On the other hand, in the mixed medium power generation system 76 of the sixteenth embodiment, the second condensate is supplied to the refrigerant production device 8.
Ammonia ice is manufactured in the ammonia ice manufacturing apparatus 90 by cooling and condensing propane using ammonia refrigerant obtained by adiabatic expansion by the expansion valve 36 of 0, and expanding the condensed propane. I have.

That is, the refrigerant producing device 80 is composed of an ammonia refrigerant part and a propane refrigerant part.

In the ammonia refrigerant portion, the second condensate obtained by condensing the high concentration mixed medium vapor in the condenser 62 is
The refrigerant is guided to the expansion valve 36 and adiabatically expanded to obtain an ammonia refrigerant whose temperature is greatly reduced. Then, the ammonia refrigerant is guided to the heat exchanger 81 and used for cooling propane, and then guided to the suction part 38 b of the ejector 38. On the other hand, a part of the low-concentration mixed medium liquid separated by the high-pressure separator 21 is guided to the heat exchanger 22 and heated, and then the refrigerant production device 80
The ejector 38 is guided to the pressure reducing valve 39 of the
To the drive nozzle 38a. The drive nozzle 38a of the ejector 38 is provided with a reduced-diameter portion and an increased-diameter portion, and functions to convert the low-concentration mixed medium liquid jetted from the drive nozzle 38a into a gas-liquid two-phase flow. As a result, the low-concentration mixed medium liquid becomes a high-speed gas-liquid two-phase flow,
a into the main body nozzle 38c, the suction portion 38b
Is introduced into the main body nozzle 38c, mixed with the low-concentration mixed medium liquid, and absorbed. Then, the mixed medium obtained from the ejector 38 is cooled by heat exchange with a cooling medium such as seawater, and is condensed in the condenser 40 to be a third reconstituted liquid. Then, the third condensate is mixed with the first condensate obtained from the condenser 14, then pressurized by a pressurizing pump, supplied to the heat exchanger 22 and the heat exchanger 61 and heated, and It is returned to the heat exchanger 5 of the power generation system 1.

In the propane refrigerant portion, the propane condensed in the heat exchanger (condenser) 81 is guided to the expansion valve 82 and is adiabatically expanded, so that the temperature is greatly reduced. Then, the propane is supplied to the supercooling device 83 in the ammonia ice producing device 90 and used for producing ammonia ice. The propane discharged from the supercooling device 83 is guided to a compressor 85 driven by an electric motor 84 to compress the propane.
To reflux.

In the ammonia ice producing apparatus 90, the ammonia liquid supercooled by the supercooling device 83 is led to the supercooling release tank 91 to make ammonia ice, and then transferred to the ammonia ice storage tank 92 for storage. The ammonia ice stored in the ammonia ice storage tank 92 is thawed as needed to become an ammonia cooling liquid, supplied to the heat exchanger (cooling means) 46 by the pressurizing pump 93, and discharged from the mixed medium turbine 8. After being used for cooling the concentration mixture medium vapor, it is led to the ammonia liquid storage tank 94. Then, the ammonia liquid stored in the ammonia liquid storage tank 94 is returned to the supercooling device 83 by the circulation pump 95.

Next, the effects of the mixed-medium power generation system 76 of the sixteenth embodiment will be described.

As described above, the mixed-medium power generation system 76 of the sixteenth embodiment has the refrigerant production device 80 and the ammonia ice production device 90 arranged side by side. Thus, ammonia ice is produced and converted into latent heat when the power energy demand is low, such as at night, and stored, and when the daytime power energy demand is high, the stored ammonia ice is thawed to obtain an ammonia coolant. Then, the ammonia coolant is supplied to the heat exchanger 46 installed at the outlet of the mixed-medium turbine 8, and the high-concentration mixed-medium vapor, which is the exhaust gas of the mixed-medium turbine 8, is cooled to near zero. Can be increased. Furthermore, when the power energy demand in the daytime is large, the branch supply of the high concentration mixed medium vapor from the high pressure separator 21 of the mixed medium power generation system 60 to the condenser 62 is stopped,
The output of the mixed media turbine 8 is maximized. This allows
A mixed-medium power generation system operable in response to peak power demand can be provided.

Therefore, a refrigerant production apparatus 80 and an ammonia ice production apparatus 90 as in the sixteenth embodiment are arranged in parallel with a power plant conventionally used for base load operation, such as a nuclear power plant or a coal-fired power plant. By combining the installed mixed-medium power generation systems 60, it is possible to provide a mixed-medium power generation system that can cope with fluctuations in power demand. Furthermore, the need for equipment such as oil-fired power plants and pumped-storage power plants, which were required in the past to respond to fluctuations in power demand, is no longer necessary. The accompanying destruction of the natural environment can also be prevented.

Further, since the low-concentration mixed medium liquid obtained from the high-pressure separator 21 is ejected from the driving nozzle 13a of the ejector 13 as a high-speed gas-liquid two-phase flow, the droplet diameter becomes about several tens of microns. In addition, the surface area of the droplet can be increased. As a result, while efficiently absorbing the exhaust gas of the mixed medium turbine 8 which is the mixed medium vapor, the condenser 14
At a high speed. Therefore, since the heat exchange efficiency in the heat exchange section of the condenser 14 can be increased, the condenser 14 can be made compact to contribute to a reduction in the construction cost.

Similarly, also in the refrigerant producing apparatus 80, the low-concentration mixed medium liquid obtained from the high-pressure separator 21 is ejected from the drive nozzle 38a of the ejector 38 as a high-speed gas-liquid two-phase flow, and the suction section 38b of the ejector 38 Since the refrigerant introduced into the condenser is sucked, mixed and absorbed, the condenser 40
And the construction cost can be reduced.

Seventeenth Embodiment Next, the structure and operation of a mixed-medium power generation system 77 according to a seventeenth embodiment of the present invention will be described with reference to FIG.

In the mixed medium power generation system 76 of the above-described sixteenth embodiment, the ammonia ice stored in the ammonia ice storage tank 92 of the ammonia ice producing apparatus 90 is thawed as needed to form an ammonia cooling liquid. The high-concentration mixed-medium steam, which is supplied to a heat exchanger (cooling means) 46 provided at the outlet of the mixed-medium turbine 8 and is exhausted from the mixed-medium turbine 8, is cooled to near zero degree, whereby the mixed-medium turbine 8 is cooled. The output was to be increased. On the other hand, in the mixed medium power generation system 77 of the seventeenth embodiment, the ejector 13 is provided with a cooling means for supplying an ammonia cooling liquid obtained by thawing the ammonia ice stored in the ammonia ice storage tank 92. Cooling chamber 51. Therefore, in the following description, the same reference numerals will be used for the same portions as those in the above-described sixteenth embodiment, and differences will be mainly described.

Nuclear Power Generation System 1 and Refrigerant Manufacturing Apparatus 80
The ammonia ice producing apparatus 90 is completely the same as that of the above-described sixteenth embodiment, and therefore the description thereof is omitted.

That is, the ammonia ice stored in the ammonia ice storage tank 92 is thawed as needed to form an ammonia cooling liquid, and is supplied to the cooling chamber 51 provided in the ejector 13 by the pressurizing pump 93. The ammonia coolant is used for cooling the heat of dissolution generated when the high-concentration mixed-medium vapor exhausted from the mixed-medium turbine 8 is absorbed and mixed with the low-concentration mixed-medium liquid obtained from the high-pressure separator 11. After that, the ammonia liquid storage tank 9
It is led to 4. In addition, a part of the ammonia cooling liquid used for cooling the heat of dissolution is supplied to the cooling chamber 5 provided in the ejector 13.
A part thereof is taken out from the middle of 1 and returned to the ammonia ice storage tank 92 to be used for thawing ammonia ice.

The ammonia cooling liquid supplied to the cooling chamber 51 of the ejector 13 absorbs and mixes the high-concentration mixed-medium vapor exhausted from the mixed-medium turbine 8 into the low-concentration mixed-medium liquid obtained from the high-pressure separator 21. It cools the melting heat generated at that time, lowers the vapor pressure at the outlet of the mixed-medium turbine 8, and increases the output of the mixed-medium turbine 8.

Therefore, the mixed-medium power generation system 77 of the seventeenth embodiment has the same advantages as the mixed-medium power generation system 76 of the sixteenth embodiment.

Eighteenth Embodiment Next, with reference to FIG. 18, the structure and operation of a mixed-medium power generation system according to an eighteenth embodiment of the present invention will be described.

In the mixed-medium power generation system 76 according to the sixteenth embodiment, the ammonia ice stored in the ammonia ice storage tank 92 of the ammonia ice producing apparatus 90 is thawed as needed to form an ammonia cooling liquid. The high-concentration mixed-medium steam, which is supplied to a heat exchanger (cooling means) 46 provided at the outlet of the mixed-medium turbine 8 and is exhausted from the mixed-medium turbine 8, is cooled to near zero degree, so that the mixed-medium turbine 8 The output was to be increased. On the other hand, in the mixed-medium power generation system 78 of the eighteenth embodiment, the cooling means for supplying the ammonia cooling liquid obtained by thawing the ammonia ice stored in the ammonia ice storage tank 92 is provided in the condenser 14. The heat exchanger 53 is provided inside. Therefore, in the following description, the same reference numerals will be used for the same portions as those in the above-described sixteenth embodiment, and differences will be mainly described.

Nuclear Power Generation System 1 and Refrigerant Manufacturing Apparatus 80
The ammonia ice producing apparatus 90 is completely the same as that of the above-described sixteenth embodiment, and therefore the description thereof is omitted.

That is, the ammonia ice stored in the ammonia ice storage tank 92 is thawed as needed to form an ammonia cooling liquid, and is supplied to the heat exchanger 53 provided in the condenser 14 by the pressurizing pump 93. Is done. The ammonia coolant is used to cool the solution heat generated when the high-concentration mixed medium vapor exhausted from the mixed-medium turbine 8 is absorbed and mixed with the low-concentration mixed medium liquid obtained from the high-pressure separator 21. After that, the ammonia liquid storage tank 9
It is led to 4. A part of the ammonia cooling liquid which has been used for cooling the heat of dissolution and has been heated is partially taken out of the heat exchanger 53 provided in the condenser 14 and returned to the ammonia ice storage tank 44. Used for thawing ammonia ice.

The ammonia cooling liquid supplied to the heat exchanger 53 in the condenser 14 absorbs the high-concentration mixed-medium vapor exhausted from the mixed-medium turbine 8 into the low-concentration mixed-medium liquid obtained from the high-pressure separator 21. In this case, the heat generated by the mixing is cooled to reduce the vapor pressure at the outlet of the mixed medium turbine 8, thereby increasing the output of the mixed medium turbine 8.

Therefore, the mixed-medium power generation system 78 of the eighteenth embodiment has the same effects as the mixed-medium power generation system 76 of the sixteenth embodiment.

Nineteenth Embodiment The structure and operation of a mixed-medium power generation system 79 according to a nineteenth embodiment of the present invention will be described with reference to FIG.

In the mixed-medium power generation system 76 of the sixteenth embodiment, the ammonia ice stored in the ammonia ice storage tank 92 of the ammonia ice producing apparatus 90 is thawed as needed to form an ammonia cooling liquid. The high-concentration mixed-medium steam, which is supplied to a heat exchanger (cooling means) 46 provided at the outlet of the mixed-medium turbine 8 and is exhausted from the mixed-medium turbine 8, is cooled to near zero degree, whereby the mixed-medium turbine 8 is cooled. The output was to be increased. On the other hand, in the mixed-medium power generation system 79 of the nineteenth embodiment, the cooling means for supplying the ammonia cooling liquid obtained by thawing the ammonia ice stored in the ammonia ice storage tank 92 includes the high-pressure separator 21. Is a heat exchanger 55 for cooling the low-concentration mixed medium liquid obtained from the above.

Nuclear Power Generation System 1 and Refrigerant Manufacturing Apparatus 80
The ammonia ice producing apparatus 90 is completely the same as that of the above-described sixteenth embodiment, and therefore the description thereof is omitted.

The ammonia ice stored in the ammonia ice storage tank 92 is thawed as needed to form an ammonia cooling liquid, and the heat exchanger 55
Supplied to Then, the ammonia cooling liquid is used for cooling the low-concentration mixed medium liquid supplied to the drive nozzle 13 a of the ejector 13, and is then guided to the ammonia liquid storage tank 94. A part of the ammonia cooling liquid which has been heated and used for cooling the melting heat is partially taken out of the heat exchanger 55 and returned to the ammonia ice storage tank 92 to be used for thawing the ammonia ice. Can be

The ammonia cooling liquid supplied to the heat exchanger 55 cools the low-concentration mixed medium liquid supplied to the drive nozzle 13a of the ejector 13, so that the ammonia cooling liquid supplied from the mixed medium turbine 8 guided to the suction portion 13a of the ejector 13 At the same time as increasing the absorptive power when sucking, mixing and absorbing the high-concentration mixed medium vapor to be exhausted, reducing the heat of dissolution generated at that time and lowering the vapor pressure at the outlet of the mixed medium turbine 8 Plays a role in increasing the output of the mixed medium turbine 8.

Therefore, the mixed-medium power generation system 79 of the nineteenth embodiment has the same effects as the mixed-medium power generation system 76 of the sixteenth embodiment.

Next, the structure and operation of the ejector according to the twelfth, sixteenth, and seventeenth aspects will be described with reference to FIGS.

Ejector 8 shown in FIGS. 20 and 21
Reference numeral 00 denotes a structure in which each drive nozzle and each main body nozzle correspond one-to-one. The upper side in FIG. 20 is connected to the mixing medium turbine side, and the lower side in FIG. 20 is connected to the condenser. ing. Cylindrical ejector inner cylinder 801
The high-concentration mixed-medium vapor G, which is the exhaust gas of the mixed-medium turbine, flows into the internal space (suction unit) 802 from above in the figure to below in the figure. A cylindrical ejector inner wall 803 is coaxially arranged outside the ejector inner cylinder 801, and a driving liquid distribution chamber 804 is formed in a liquid-tight manner over the entire circumference thereof. Then, the low-concentration mixed medium liquid L separated by a medium-pressure separator or a high-pressure separator is supplied from a pair of left and right driving liquid supply pipes 805 connected to the driving liquid distribution chamber 804.
M is supplied as a driving liquid.

Inside the internal space 802, a plurality of driving liquid distribution pipes extending in parallel with each other and in a straight line in the horizontal direction are arranged alternately in the vertical direction. That is, the driving liquid distribution pipe indicated by reference numeral 806a is disposed in the upper stage, and the driving liquid distribution pipe indicated by reference numeral 806b adjacent to the upper driving liquid distribution pipe 806a is disposed in the lower stage. Both ends of the driving liquid distribution pipes 806a and 806b are open to the driving liquid distribution chamber 804, and the driving liquid flows from the driving liquid distribution chamber 804.

On the lower surface of each drive liquid distribution pipe 806a, 806b, each drive nozzle 807a, 807 extending vertically.
b are connected to each other. Driving nozzle 807a extending from driving liquid distribution pipe 806a arranged in the upper stage
Extends between the driving liquid distribution pipes 806b arranged at the lower stage. In addition, these driving nozzles 807a, 807b
The length is set so that the lower end is located at a predetermined vertical position at the entrance of each main body nozzle 808. That is, the driving liquid distribution pipe 806 arranged in the upper stage
The total length of the driving nozzle 807a extending from the driving nozzle 80a extends from the driving liquid distribution pipe 806b disposed in the lower stage.
7b, the driving liquid distribution pipes 806a, 806b
Is increased by the amount of vertical displacement.

Each of the main body nozzles 808 is held at a predetermined interval by an interval holding stat (not shown) and extends coaxially with each of the driving nozzles 807a and 807b by a pair of upper and lower partitions 809 and 810 extending in the horizontal direction. Supported. In addition, each body nozzle 808
And a pair of upper and lower partition walls 809 and 810, and the ejector inner cylinder 8
01 and the inner wall 815 of the condenser are sealed in a liquid-tight manner by a Teflon O (o) ring (not shown).

A main body nozzle side chamber (cooling chamber) 812 is formed by the pair of upper and lower partitions 809 and 810 and the cylindrical main body nozzle outer wall 811. A cooling fluid flows into the main body nozzle side chamber 812 via an inflow pipe 813, flows around each main body nozzle 808, and
After cooling 08, it is discharged outside through an outflow pipe 814. As the cooling fluid, low-temperature fresh water or ammonia liquid obtained by thawing the above-mentioned fresh water ice or ammonia ice can be used. In addition, a barrier (not shown) is provided in the main body nozzle side chamber 812 so that the cooling fluid C flows uniformly around each main body nozzle 808.

The driving liquid distribution chamber 804, the main body nozzle side chamber 812, and the condenser inlet 816 are each provided with a gas vent (not shown) to prevent gas from remaining.

Next, the operation of the ejector 800 of this embodiment will be described.

The high concentration mixed medium vapor G exhausted from the mixed medium turbine flows into the internal space 802 of the ejector 800. On the other hand, the low-concentration mixed medium liquid LM separated by the medium pressure separator or the high pressure separator is supplied to the driving liquid distribution chamber 804 through a pair of left and right driving liquid supply pipes 805, and then the driving liquid distribution pipe 806a, It is supplied to each drive nozzle 807a, 807b via 806b. Each drive nozzle 8
Low concentration mixed medium liquid LM supplied to 07a and 807b
Becomes a gas-liquid two-phase flow when passing through the expansion and contraction portion in each of the drive nozzles 807a and 807b,
Spout into 8. Accordingly, each driving nozzle 807a,
The high concentration mixed medium vapor G existing around 807b is sucked into each main body nozzle 808, mixed and absorbed with the low concentration mixed medium liquid LM, and both flow out to the condenser inlet 816 at high speed.

At this time, since the low-concentration mixed medium liquid LM is ejected from the driving nozzles 807a and 807b as a high-speed gas-liquid two-phase flow, the droplet diameter becomes about several tens of microns.
Since the surface area of the droplets can be increased, the high-concentration mixed medium vapor G exhausted from the mixed medium turbine 8 can be efficiently absorbed. In addition, the low-concentration mixed-medium liquid LM that has absorbed the high-concentration mixed-medium vapor G can flow at high speed into the heat exchange section of the condenser (not shown).
The heat exchange efficiency in the heat exchange section of the condenser can be increased, and the condenser can be made compact to contribute to a reduction in the construction cost.

The heat of dissolution generated by mixing and absorbing the high-concentration mixed medium vapor G with the low-concentration mixed medium liquid LM in the main body nozzle 808 is caused by the cooling fluid flowing into the main body nozzle side chamber 812 and the main body nozzle 808. Cooled by heat exchange between Thus, the steam pressure at the outlet of the mixed-medium turbine can be reduced, and the output of the mixed-medium turbine can be increased.

Further, the driving liquid distribution pipe 806 adjacent to each other
a, 806b are displaced in the vertical direction, so that the drive nozzles 807a, 807b can be densely arranged in a so-called triangular array, and the main body nozzles 8
08 can also be densely arranged in accordance with the driving nozzles 807a and 807b, so that the entire ejector 800 can be made compact.

Next, referring to FIGS. 22 and 23, the structure and operation of the ejector according to the twelfth, sixteenth, and eighteenth aspects will be described.

Ejector 8 shown in FIGS. 22 and 23
Reference numeral 20 denotes a structure in which a plurality of driving nozzles correspond to one substantially cylindrical main body nozzle. The upper part in FIG. 22 is connected to the mixed-medium turbine side, and the lower part in FIG. 22 is connected to the condenser.

In this ejector 820, a plurality of substantially cylindrical main body nozzles 821 are densely arranged in a so-called triangular arrangement as shown in FIG. A bundle 822 of driving nozzles is individually and coaxially arranged in each main body nozzle 821.

The structure of the drive nozzle bundle 822 is the same as that of the ejector 800 described above. That is, the driving liquid distribution pipe indicated by reference numeral 806a is disposed in the upper stage, and the driving liquid distribution pipe indicated by reference numeral 806b adjacent to the upper driving liquid distribution pipe 806a is disposed in the lower stage. And these driving liquid distribution pipes 806
The driving liquid flows from the driving liquid distribution chamber (not shown) into the insides a and 806b.

On the lower surface of each drive liquid distribution pipe 806a, 806b, each drive nozzle 807a, 807 extending vertically.
b are connected to each other. Driving nozzle 807a extending from driving liquid distribution pipe 806a arranged in the upper stage
Extends between the driving liquid distribution pipes 806b arranged at the lower stage. In addition, these driving nozzles 807a, 807b
Is set so that its lower end is located at a predetermined vertical position at the entrance of each main body nozzle 821. That is, the driving liquid distribution pipe 806 arranged in the upper stage
The total length of the driving nozzle 807a extending from the driving nozzle 80a extends from the driving liquid distribution pipe 806b disposed in the lower stage.
7b, the driving liquid distribution pipes 806a, 806b
Is increased by the amount of vertical displacement.

As shown in FIG. 23, while the plurality of driving liquid distribution pipes 806a and 806b extend parallel to each other inside the ejector inner cylinder (not shown), the plurality of nozzle bundles 822 are connected to the main body nozzles 821. And are arranged coaxially.

That is, the ejector 820 of the present embodiment
Since the low-concentration mixed medium liquid is ejected from the plurality of drive nozzles 806a and 806b into one main body nozzle 821, the jet surface area of the low-concentration mixed medium liquid can be increased. Thereby, each body nozzle 821
Even if the length of the high-concentration mixed medium vapor flow direction (vertical direction in FIG. 22) is reduced, the low-concentration mixed medium liquid LM
Can efficiently absorb and mix the high concentration mixed medium vapor G. Therefore, the ejector 820 of the present embodiment
In, by shortening the length of each body nozzle 821,
The ejector 820 can be made compact and its construction cost can be reduced.

Next, the structure and operation of an ejector according to claim 19 will be described with reference to FIG.

The ejector 830 shown in FIG. 24 has a structure in which one substantially cylindrical main body nozzle corresponds to one of a plurality of annular driving nozzles arranged coaxially with each other. It is connected to the media turbine side, and the lower part in the figure is connected to the condenser.

In this ejector 830, a plurality of substantially cylindrical main body nozzles 831 are densely arranged in a so-called triangular arrangement like the ejector 820 shown in FIG. Each of the drive nozzles 832 is individually and coaxially arranged in each of the main body nozzles 831.

The driving nozzle 832 includes an outer driving nozzle 833 having the largest outer diameter and an annular cross section, and an intermediate driving nozzle having an outer diameter smaller than the inner diameter of the outer driving nozzle 833 and having an annular cross section. 834 and an inner driving nozzle 835 having an outer diameter smaller than the inner diameter of the intermediate driving nozzle 834 and having an annular cross section are coaxially arranged. Then, the outer driving nozzle 833
Is provided with a driving liquid distribution pipe 836 disposed in the lower stage.
The driving liquid distribution pipe 836 disposed at the middle stage distributes the driving liquid LM to the intermediate driving nozzle 834, and the driving liquid distribution pipe 836 disposed at the upper stage is disposed to the inner inside driving nozzle 835. The driving liquid LM is distributed.

A gap 839a having an annular cross section is provided between the outer driving nozzle 833 and the intermediate driving nozzle 834.
But also the intermediate drive nozzle 834 and the outer drive nozzle 833
The gaps 839b each having an annular cross section are provided between them, and the high-concentration mixed medium vapor G supplied from above in FIG. 24 passes therethrough.

That is, the ejector 830 of the present embodiment
Since the low-concentration mixed medium liquid LM is ejected annularly from each of the driving nozzles 833, 834, 835 into one main body nozzle 831, the jet surface area of the low-concentration mixed medium liquid LM can be increased. In addition, since the high-concentration mixed-medium vapor G exists between the jets of the low-concentration mixed-medium liquid ejected from each drive nozzle, the flow direction of the high-concentration mixed-medium vapor in each nozzle body 831 (the vertical direction in FIG. 24). Even if the length is shortened, the low concentration mixed medium liquid LM can efficiently absorb and mix the high concentration mixed medium vapor G. Therefore, in the ejector 830 of the present embodiment, the length of each nozzle body 831 can be reduced, the ejector 830 can be made compact, and the construction cost can be reduced.

Next, referring to FIG. 25, the structure and operation of the ejector according to claim 20 will be described.

The ejector 840 shown in FIG.
0 in that each inner cylinder of the ejector 800 is formed in a double-walled structure, and a vacuum chamber is formed therein.

That is, the mixed medium turbine outlet inner wall 8
41, drive nozzle part inner cylinder 842, drive liquid distribution pipe 806
a, 806b, a main nozzle portion inner wall 843, and a condenser inner wall 844 are each formed in a double wall structure, and vacuum chambers 845, 846, 847, 848, 849 are formed therein.

Thus, the mixed medium turbine outlet inner wall 841, the drive nozzle inner tube 842, the drive liquid distribution pipe 806
a, the heat can be prevented from flowing in from the outside via the inner wall 843 of the main body nozzle, the inner wall 843 of the main body nozzle, and the inner wall 844 of the condenser, so that the pressure at the exhaust outlet of the mixed medium turbine can be efficiently reduced, The output of the medium turbine can be efficiently increased.

Next, the structure and operation of the ejector according to the twelfth and twenty-first aspects will be described with reference to FIG.

The ejector 850 shown in FIG.
5 in that each vacuum chamber provided in the ejector 840 shown in FIG. 5 is a cooling chamber for guiding a cooling liquid.

That is, the mixed medium turbine outlet inner wall 8
51, drive nozzle unit inner cylinder 852, drive liquid distribution pipe 806
The inner walls 85a, 806b, the inner wall 853 of the main body nozzle, and the inner wall 854 of the condenser are each formed in a double wall structure, and cooling chambers 855, 856, 857, 858, 859 are formed therein.

The cooling chambers 855, 856, 85
7,858,859 have supply pipes 861,862,8
63 and 864 are connected to supply defrosted water or defrosted ammonia solution, and discharge pipes 865 and 86 are provided.
6, 867 and 868 are connected to discharge defrosted water or defrosted ammonia solution which has been heated in each cooling chamber.

As a result, the inner wall 851 of the outlet of the mixed medium turbine, the inner cylinder 852 of the driving nozzle, the driving liquid distribution pipe 806
In addition to preventing the heat from flowing in from the outside via the inner wall of the a, 806b, the main body nozzle inner wall 853, and the condenser inner wall 854, the low concentration mixed medium liquid LM can be increased by actively cooling the respective parts. It is possible to prevent a temperature rise that occurs when the concentration mixture medium vapor G is absorbed, efficiently reduce the vapor pressure at the exhaust outlet of the mixture medium turbine, and efficiently increase the output of the mixture medium turbine.

Next, the structure and operation of the ejector according to claim 22 will be described with reference to FIG.

High-concentration mixed-medium vapor G, which is the exhaust gas of a not-shown mixed-medium turbine, flows into the mixed-medium turbine outlet inner wall 861 of the ejector 860 shown in FIG. 27 from above in the figure. Further, a low-concentration mixed medium liquid LM as a driving liquid separated by a medium pressure separator or a high pressure separator.
Is supplied to the driving liquid distribution chamber 863 through the supply pipe 862, and is then injected from the driving nozzle 864 into each nozzle body 865. Further, in order to cool the nozzle main body 865, a cooling fluid C such as defrosted water or defrosted ammonia liquid is supplied to the nozzle main body side chamber 867 through the supply pipe 866. Then, the cooling fluid C heated by heat exchange in the nozzle body side chamber 867 is discharged through the discharge pipe 868.

On the other hand, a heat exchanger 870 is provided between the nozzle body 865 and the condenser 880. The heat exchanger 870 includes a supply pipe 871 for supplying a cooling fluid C such as defrosted water or defrosted ammonia liquid,
A cooling fluid distribution chamber 872 for distributing the cooling fluid supplied through the nozzle 71; a cooling fluid receiving chamber 873 for receiving the cooling fluid C heated by heat exchange with the mixed medium discharged from the nozzle body 865; It comprises a discharge pipe 874 for discharging the cooling fluid from the fluid receiving chamber 873, and a number of heat transfer pipes 875 extending between the cooling fluid distribution chamber 872 and the cooling fluid receiving chamber 873 and through which the cooling fluid passes. I have.

As a result, since a large number of heat transfer tubes 875 form a kind of heat curtain, even if the temperature of the condensate condensed in the condenser 880 is set high, the effect reaches the outlet of the mixed medium turbine. Can be reliably prevented. Therefore, according to the ejector 860 of the present embodiment, the output of the mixed-medium turbine can be increased by lowering the vapor pressure at the outlet of the mixed-medium turbine. Also, by raising the temperature of the condensed liquid condensed in the condenser 880, the temperature of the seawater discharged from the condenser 880 can be reduced, so that the heat energy released to the ocean can be reduced.

As described above, each embodiment of the mixed-medium power generation system according to the present invention has been described in detail. However, it is needless to say that the present invention is not limited to the above-described embodiment, and various changes can be made. For example, the mixed medium power generation system according to the sixteenth to nineteenth embodiments described above includes:
The refrigerant production device 35 and the ice production device 42 of the mixed medium power generation system of the eighth to eleventh embodiments are replaced with an ammonia refrigerant production device 80 and an ammonia ice production device 90. Similarly, the refrigerant production device 35 and the ice production device 42 of the mixed medium power generation systems of the fourth to seventh embodiments and the twelfth to fifteenth embodiments are replaced by an ammonia refrigerant production device 80 and an ammonia ice It goes without saying that the manufacturing apparatus 90 can be replaced.

[0229]

As is apparent from the above description, the mixed-medium power generation system of the present invention supplies mixed-medium vapor, which is exhaust gas of the mixed-medium turbine, to the suction portion of the mixing and absorbing means, and mixes the mixed-medium liquid. The mixed medium vapor is sucked into the main body nozzle and mixed with the mixed medium liquid to be absorbed by supplying the mixed medium liquid to the driving nozzle of the absorbing means and ejecting the mixed medium liquid from the driving nozzle into the main body nozzle of the mixing / absorbing means at a high speed. It is a structure to do. This allows the mixed medium to flow into the liquid condensing unit at a high speed while efficiently mixing and absorbing the mixed medium vapor supplied to the suction unit, thereby increasing the heat exchange efficiency in the heat exchange unit of the liquid condensing unit. This makes it possible to make the liquid condensing means compact and contribute to a reduction in the construction cost.

Further, the mixed-medium power generation system of the present invention has a cooling device and an ice-making device juxtaposed, and cools the exhaust path of the mixed-medium turbine by using a cooling liquid obtained by thawing ice to mix the refrigerant. This is a structure that increases the output of the media turbine. This makes it possible to produce ice when the power energy demand is low, such as at night, convert it into latent heat and store it, and when the daytime power energy demand is high, defrost the stored ice to obtain a coolant and obtain a mixed media turbine. Therefore, it is possible to provide a mixed-medium power generation system that can operate in response to daytime peak power demand.

[Brief description of the drawings]

FIG. 1 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a first embodiment.

FIG. 2 is a system diagram schematically illustrating the structure of a mixed-medium power generation system according to a second embodiment.

FIG. 3 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a third embodiment.

FIG. 4 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a fourth embodiment.

FIG. 5 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a fifth embodiment.

FIG. 6 is a system diagram schematically illustrating the structure of a mixed-medium power generation system according to a sixth embodiment.

FIG. 7 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a seventh embodiment.

FIG. 8 is a system diagram schematically illustrating the structure of a mixed-medium power generation system according to an eighth embodiment.

FIG. 9 is a system diagram schematically illustrating the structure of a mixed-medium power generation system according to a ninth embodiment.

FIG. 10 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a tenth embodiment.

FIG. 11 is a system diagram schematically showing the structure of a mixed-medium power generation system according to an eleventh embodiment.

FIG. 12 is a system diagram schematically showing a structure of a mixed-medium power generation system according to a twelfth embodiment.

FIG. 13 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a thirteenth embodiment.

FIG. 14 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a fourteenth embodiment.

FIG. 15 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a fifteenth embodiment.

FIG. 16 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a sixteenth embodiment.

FIG. 17 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a seventeenth embodiment.

FIG. 18 is a system diagram schematically showing the structure of a mixed-medium power generation system according to an eighteenth embodiment.

FIG. 19 is a system diagram schematically showing the structure of a mixed-medium power generation system according to a nineteenth embodiment.

FIG. 20 is a longitudinal sectional view schematically showing an embodiment of an ejector.

FIG. 21 is a horizontal sectional view taken along the line AA shown in FIG. 20;

FIG. 22 is a longitudinal sectional view schematically showing another embodiment of the ejector.

FIG. 23 is a horizontal sectional view taken along the line BB shown in FIG. 22;

FIG. 24 is a longitudinal sectional view schematically showing a multiple cylindrical drive nozzle.

FIG. 25 is a longitudinal sectional view schematically showing an ejector provided with a vacuum heat insulating chamber.

FIG. 26 is a longitudinal sectional view schematically showing an ejector provided with a cooling chamber.

FIG. 27 is a longitudinal sectional view schematically showing a condenser provided with a heat exchanger on the ejector side.

DESCRIPTION OF SYMBOLS 1 Nuclear power system 2 Nuclear reactor 3 Steam turbine 4 Generator 5 Heat source 6 Circulation pump 7 Mixed-medium power generation system of first embodiment 8 Mixed-medium turbine 9 Generator 11 Medium pressure separator 12 Pressure reducing valve 13 Ejector (mixing and absorbing means) 14 Condenser 20 Mixed-medium power generation system of second embodiment 21 High-pressure separator 22 Heat exchanger (condensation heating means) 24 Mixed-medium power generation system of third embodiment 25 Pressure reducing valve 26 Medium pressure separation Device 29 Pressure reducing valve 32 Mixed-medium power generation system of the fourth embodiment 35 Refrigerant manufacturing device 36 Expansion valve 38 Ejector 40 Condenser 42 Ice making device 46 Heat exchanger (cooling means) 50 Mixed-medium power generation system 51 of the fifth embodiment 51 Cooling Room (cooling means) 52 Mixed-medium power generation system of the sixth embodiment 53 Heat exchanger (cooling means) 54 Seventh embodiment Mixed-medium power generation system 55 Heat exchanger (cooling means) 60 Mixed-medium power generation system of the eighth embodiment 63 Mixed-medium power generation system of the ninth embodiment 64 Mixed-medium power generation system of the tenth embodiment 65 of the eleventh embodiment Mixed-medium power generation system 70 Mixed-medium power generation system of the twelfth embodiment 73 Mixed-medium power generation system of the thirteenth embodiment 74 Mixed-medium power generation system of the fourteenth embodiment 75 Mixed-medium power generation system of the fifteenth embodiment 76 of the sixteenth embodiment Mixed-medium power generation system 77 Mixed-medium power generation system of the seventeenth embodiment 78 Mixed-medium power generation system of the eighteenth embodiment 79 Mixed-medium power generation system of the nineteenth embodiment 80 Ammonia refrigerant production device 90 Ammonia ice production device 100, 200, 300 Medium cycle power plant 400, 410, 4 0,430 mixed medium cycle power plant 500,510,520,530 mixed medium cycle power plant 600,610,620,630 mixed medium cycle power plant 800,820,830,840,850,860 ejector

Continued on the front page (72) Inventor Yutaka Takeuchi 2-1 Ukishima-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside the Toshiba Hamakawasaki Plant (72) Inventor Mikio Takayanagi 1-1-1, Shibaura, Minato-ku, Tokyo No. Toshiba Corporation Head Office (72) Inventor Takayuki Marume 1-1-1, Shibaura, Minato-ku, Tokyo In-house Toshiba Corporation Head Office (72) Tomoko Ogata 1-1, Shibaura, Minato-ku, Tokyo No. 1 Inside Toshiba Corporation Head Office (72) Inventor Shunji Kawano 2-4 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa Prefecture Inside Keihin Plant, Toshiba Corporation (72) Inventor Hideaki Hioki Isogo, Yokohama-shi, Kanagawa 8 Shinsugita-cho, Ward F-term in Toshiba Yokohama Office (reference) 3G081 BB05 BB07 BC07 BD04 DA14 DA16

Claims (10)

[Claims] 1. A mixed-medium power generation system for generating electric power using a mixed medium obtained by mixing media having different boiling points, wherein the generator is driven by operating the mixed-medium vapor obtained by heating the mixed medium with a heating source. A mixed-medium turbine that is exhausted from the mixed-medium turbine is supplied to the suction portion, and a mixed-medium liquid is supplied to the driving nozzle, and the mixed-medium liquid is supplied from the driving nozzle to the inside of the main body nozzle. Mixing / absorbing means for sucking the exhaust gas into the main body nozzle to mix and absorb with the mixed medium liquid by ejecting the mixed gas into the mixed medium liquid, and cooling and condensing the mixed medium obtained from the mixed / absorbing means to return the liquid. And a condensate supply means for supplying the condensate to the heating source. 2. A separating means for separating a mixed medium heated by the heating source into a high-concentration mixed medium vapor having a high concentration of a low-boiling medium and a low-concentration mixed medium liquid having a low concentration of the low-boiling medium. The mixed medium power generation according to claim 1, wherein the high concentration mixed medium vapor is supplied to the mixed medium turbine, and the low concentration mixed medium liquid is supplied to a drive nozzle of the mixing and absorbing means. system. 3. A refrigerant producing means for producing a refrigerant by adiabatically expanding a condensed liquid obtained by condensing a high-concentration mixed medium vapor, an ice producing means for producing and storing ice using the refrigerant, and the ice 3. The mixed-medium power generation system according to claim 1, further comprising: cooling means for cooling an exhaust path of the mixed-medium turbine by using a cooling liquid obtained by thawing the mixed medium. 4. The refrigerant producing means includes: a condenser for cooling and condensing a second refrigerant using the refrigerant; an expansion valve for adiabatically expanding the condensed second refrigerant; A heat exchanger that exchanges heat with a second refrigerant; and a compressor that compresses the heat-exchanged second refrigerant and supplies the compressed second refrigerant to the condenser. The mixed medium power generation system according to claim 3, wherein ice is produced by heat exchange with the second refrigerant in the exchanger. 5. A mixed-medium power generation system for generating electric power using a mixed medium obtained by mixing media having different boiling points, comprising: a mixed-medium turbine operated by steam of the mixed medium heated by a heating source; and a mixed-medium turbine. A heat generator that drives the first condensate and cools the exhaust gas by heat exchange with the mixed medium steam that is the exhaust gas of the mixed medium turbine. Separating means for separating the first condensate liquid into mixed medium vapor and mixed medium liquid; mixed medium liquid obtained from the separating means while the exhaust gas cooled in the heat exchange means is supplied to a suction part thereof Is decompressed by the decompression means and supplied to the drive nozzle thereof, and the mixed medium liquid is ejected from the drive nozzle into the main body nozzle at a high speed to exhaust the exhaust gas. A first mixing / absorbing unit which sucks into the main body nozzle and mixes and absorbs with the mixed medium liquid; and a first mixed unit which cools and condenses the mixed medium obtained from the first mixing unit to obtain the first concentrated liquid. Liquid means, first condensate supply means for supplying the first condensate liquid obtained from the first condensate means to the heat exchange means, and mixed medium vapor obtained from the separation means is supplied to the suction part thereof And a part of the first condensed liquid supplied from the first condensed liquid supply means is supplied to the driving nozzle thereof,
And a second mixing / absorbing means for injecting the mixed medium vapor into the main body nozzle to mix and absorb the first condensed liquid by ejecting the first condensed liquid from the driving nozzle into the main body nozzle at a high speed. A second condensing means for cooling and condensing the mixed medium obtained from the second mixing and absorbing means to form a second condensed liquid; and supplying the second condensed liquid obtained from the second condensing liquid means to the heating source And a second condensate supply unit for supplying the mixed medium to the power supply. 6. A mixed-medium power generation system for generating electric power using a mixed medium in which media having different boiling points are mixed, wherein the separation means separates the mixed medium heated by the heating source into a mixed-medium vapor and a mixed-medium liquid. A mixed-medium turbine operated by the mixed-medium steam obtained from the separation unit; a generator driven by the mixed-medium turbine; and a mixed-medium vapor, which is exhaust gas of the mixed-medium turbine, is supplied to the suction portion. In addition, the mixed medium liquid obtained from the separation unit is decompressed by the decompression unit and supplied to the driving nozzle thereof, and the mixed medium liquid is ejected from the driving nozzle into the main body nozzle at a high speed to exhaust the exhaust gas. A mixing / absorbing means for sucking into the main body nozzle to mix and absorb with the mixed medium liquid, and cooling and condensing the mixed medium obtained from the mixing / absorbing means Liquid condensing means for liquid condensing, liquid condensing supply means for supplying the liquid condensate obtained from the liquid condensing means to the heating source (5), and heat exchange with the mixed medium liquid obtained from the separation means A mixed medium power generation system, comprising: a condensate heating unit interposed between the condensate supply unit and the heating source, for heating the condensate supplied from the condensate supply unit. . 7. A mixed-medium power generation system for generating electric power using a mixed medium obtained by mixing media having different boiling points, wherein a first mixed medium heated by a heating source is separated into a mixed-medium vapor and a mixed-medium liquid. Separation means, first decompression means for decompressing the mixed medium liquid obtained from the first separation means, and second separation for separating the mixed medium liquid obtained from the first decompression means into mixed medium vapor and mixed medium liquid Means, a mixed medium steam obtained from the first separating means is supplied to a preceding stage thereof, and a mixed medium steam obtained from the second separating means is supplied to an intermediate stage thereof, and the mixed medium turbine is operated. A generator driven by a turbine, and a mixed medium vapor, which is exhaust gas of the mixed medium turbine, is supplied to a suction portion thereof, and a mixed medium liquid obtained from the second separation unit is reduced by a second amount. The exhaust gas is sucked into the main body nozzle and mixed with the mixed medium liquid by supplying the mixed medium liquid to the drive nozzle after being decompressed by means and ejecting the mixed medium liquid from the drive nozzle into the main body nozzle at a high speed. Mixing / absorbing means for cooling and condensing the mixed medium obtained from the mixing / absorbing means to make the liquid condensed; and supplying the condensed liquid obtained from the liquid condensing means to the heating source. Liquid supply means, for heating the condensate supplied from the condensate supply means by heat exchange with the mixed medium liquid obtained from the second separation means, between the condensate supply means and the heating source A mixed-medium power generation system, comprising: interposed condensate heating means. 8. A mixed-medium turbine operated by the mixed-medium steam heated by the heating source, a generator driven by the mixed-medium turbine, and heat exchange between the mixed-medium turbine and exhaust gas of the mixed-medium turbine. A first heat exchange means for heating a liquid mixture of the first liquid condensate and the third liquid condensate and cooling the exhaust gas; and mixing the mixed liquid heated by the first heat exchange means with a mixed medium vapor and a mixed medium. Separation means for separating the mixture medium into a liquid, and the exhaust gas cooled by the first heat exchange means is supplied to the suction part, and the mixed medium liquid obtained from the separation means is decompressed by a first decompression means. The exhaust gas is supplied to the drive nozzle, and is ejected from the drive nozzle into the main body nozzle at a high speed, whereby the exhaust gas is sucked into the main body nozzle, mixed with the mixed medium liquid, and absorbed. A first mixing / absorbing unit that cools and condenses a mixed medium obtained from the first mixing / absorbing unit to form the first condensed liquid; While supplying to the exchange means and heating the mixed solution and then supplying to the separation means,
Condensate supply means for supplying the remainder of the mixed liquid to the second heat exchange means and heating the mixed liquid by heat exchange with the mixed medium vapor obtained from the separation means and then supplying the mixed liquid to the heating source; A second condensate unit that cools and condenses the mixed medium vapor that has passed through the second heat exchange unit to obtain a second condensate; and adiabatically expands the second condensate obtained from the second condensate unit. Adiabatic expansion means for obtaining a refrigerant, the refrigerant used for ice production is supplied to its suction part, and a part of the mixed medium liquid obtained from the separation means is decompressed by a second decompression means and supplied to its driving nozzle And a second mixing / absorbing means for ejecting the mixed medium liquid from the driving nozzle into the main body nozzle at a high speed, thereby sucking the refrigerant into the main body nozzle, mixing the refrigerant with the mixed medium liquid, and absorbing the refrigerant. Second mixed absorption A refrigerant producing apparatus having a third liquid condensing means for cooling and condensing the mixed medium obtained from the stage to make the third liquid condensate; an ice producing means for producing ice using the refrigerant; Ice storage means for storing the extracted ice, cooling means for cooling the exhaust path of the mixed-medium turbine with cooling water obtained by thawing the ice stored in the ice storage means, and reducing the vapor pressure in the exhaust path. An ice producing apparatus having cooling water supply means for supplying the cooling water to the cooling means. 9. Separating means for separating a mixed medium heated by a heating source into a mixed medium vapor and a mixed medium liquid, a mixed medium turbine operated by the mixed medium vapor obtained from the separating means, and a mixed medium turbine And a mixed medium vapor, which is exhaust gas of the mixed medium turbine, is supplied to a suction portion thereof, and a mixed medium liquid obtained from the separation unit is depressurized by a first decompression unit, and a driving nozzle thereof is provided. And a mixing / absorbing means for sucking the exhaust gas into the main body nozzle to mix and absorb the mixed medium liquid by ejecting the mixed medium liquid from the drive nozzle into the main body nozzle at a high speed, A first condensing means for cooling and condensing the mixed medium obtained from the mixing and absorbing means to form a first condensed liquid; the first condensed liquid and the third condensed liquid obtained from the first condensing means; A condensate supply unit that supplies a mixed liquid with the liquid to the heating source; and the condensate supply unit and the heating source that heat the mixed liquid by heat exchange with the mixed medium liquid obtained from the separation unit. A first condensate heating unit interposed between the condensate supply unit and the heating source, wherein the condensate supply unit and the heating source heat the mixture by heat exchange with a part of the mixed medium vapor obtained from the separation unit. A second condensate heating means interposed between the second condensate heating means, a second condensate means for cooling and condensing the mixed medium vapor passing through the second condensate heating means to form a second condensate; (2) Adiabatic expansion means for adiabatically expanding the second condensate liquid obtained from the liquid condensing means to obtain a refrigerant, and the mixed medium liquid obtained from the separation means while the refrigerant used for ice production is supplied to its suction part Is partially decompressed by the second decompression means and supplied to the driving nozzle. And a second mixing / absorbing means for ejecting the mixed medium liquid from the driving nozzle into the main body nozzle at a high speed, thereby sucking the refrigerant into the main body nozzle, mixing the refrigerant with the mixed medium liquid, and absorbing the refrigerant. A refrigerant producing apparatus having a third liquid condensing means for cooling and condensing the mixed medium obtained from the second mixing and absorbing means to make the third liquid condensed; an ice producing means for producing ice using the refrigerant; Ice storage means for storing ice produced by the production means; cooling water obtained by thawing the ice stored in the ice storage means to cool the exhaust path of the mixed-medium turbine and reduce the vapor pressure in the exhaust path; A mixed-medium power generation system comprising: a cooling unit; and an ice producing apparatus having a cooling water supply unit that supplies the cooling water to the cooling unit. 10. A first separating means for separating a mixed medium heated by a heating source into a mixed medium vapor and a mixed medium liquid; a first depressurizing means for reducing the pressure of the mixed medium liquid obtained from the first separating means; A second separating means for separating the mixed medium liquid obtained from the first decompression means into a mixed medium vapor and a mixed medium liquid; and operating by the mixed medium vapor obtained from the mixed medium vapor obtained from the first separating means. A mixed-medium turbine; a generator driven by the mixed-medium turbine; and a mixed-medium vapor, which is exhaust gas of the mixed-medium turbine, is supplied to a suction portion of the mixed-medium turbine. The exhaust gas is decompressed by the second decompression means and supplied to the drive nozzle thereof, and the mixed medium liquid is ejected from the drive nozzle into the main body nozzle at a high speed to discharge the exhaust gas to the main body nozzle. A first mixing / absorbing unit which sucks into the chisel and mixes and absorbs with the mixed medium liquid; and a first condensing unit for cooling and condensing the mixed medium obtained from the first mixing / absorbing unit to obtain a first condensed liquid. Condensate supply means for supplying a mixed liquid of the first condensate liquid and the third condensate liquid obtained from the first condensate liquid to the heating source; and the mixed medium liquid obtained from the second separation means A first condensate heating means interposed between the condensate supply means and the heating source, for heating a part of the mixed liquid supplied from the condensate supply means by heat exchange with The remaining part of the mixed liquid supplied from the condensate supply means is heated by heat exchange with the mixed medium vapor obtained from the second separation means, and is interposed between the condensate supply means and the heating source. A second condensate heating means, and the mixed medium passing through the second condensate heating means A second condensing means for cooling and condensing the vapor to form a second condensate; an adiabatic expansion means for adiabatically expanding the second condensate obtained from the second condensate to obtain a refrigerant; The refrigerant is supplied to the suction unit, and a part of the mixed medium liquid obtained from the separation unit is decompressed by a third decompression unit and supplied to the driving nozzle, and the mixed medium liquid is supplied from the driving nozzle. A second mixing / absorbing means for causing the refrigerant to be sucked into the main body nozzle by being ejected into the main body nozzle at a high speed, and mixed and absorbed with the mixed medium liquid; and a mixed medium obtained from the second mixed / absorbing means. A refrigerant producing apparatus having a third liquid condensing means for cooling and condensing the third liquid, an ice producing means for producing ice using the refrigerant, and an ice storage for storing ice produced by the ice producing means Means, this ice storage means Cooling means for cooling the exhaust path of the mixed-medium turbine with cooling water obtained by thawing ice stored in the cooling medium to reduce the vapor pressure in the exhaust path, and cooling water supply means for supplying the cooling water to the cooling means And an ice producing device having the same.