JP6937231B2 - Power generation equipment and power generation method - Google Patents

Description

Embodiments of the present invention relate to a power generation device and a power generation method.

The device configuration for generating electricity using low-temperature exhaust heat or hot springs as a heat source includes an organic Rankine cycle that uses an organic substance such as pentane or an alternative chlorofluorocarbon as a medium, and a carina cycle that uses a non-azeotropic medium in which ammonia is dissolved in water, for example. Can be mentioned.

Of these, the power generation device using a non-coborous medium has the characteristic that the temperature of the medium rises with the release of the dissolved gas in the vaporizer that vaporizes the dissolved gas by applying heat, so the released gas. There is an advantage that it is easy to bring the temperature of the above to the temperature of the heat source, and therefore it is easy to increase the thermal efficiency. However, on the other hand, it is necessary to return the medium that released the gas to the gas absorber, and at that time, in order to effectively utilize the heat held by the medium, measures such as heat exchange with the liquid supplied to the vaporizer are devised. You will need it. In addition, in order to keep the pressure downstream of the expander such as a turbine low, it is necessary to devise the dissolution of the gas. One example is to suck the gas downstream of the turbine with an ejector.

Japanese Unexamined Patent Publication No. 2013-36456

FIG. 7 shows an example of a conventional typical non-azeotropic medium power generation device.

In this power generation device, a liquid that has absorbed gas from the tank 1c (hereinafter, referred to as a rich liquid) is sent to the heater 2 by a pump 8. This rich liquid is heated by the heater 2 to generate gas, and then separated into the gas and the medium that released the gas (hereinafter, referred to as lean liquid) by the gas-liquid separator 3. Of these, the gas is converted into power by an energy converter that utilizes the expansion of the gas such as the turbine 4, and the generator 5 is driven to obtain electric energy. On the other hand, the lean liquid separated by the gas-liquid separator 3 is returned to the condensation absorber 1, but since this lean liquid releases gas but has a high temperature, the heat exchanger 7a exchanges heat with the rich liquid at that time. And make effective use of heat. However, since a temperature difference is required for heat exchange, the entire amount of heat cannot be transferred to the rich liquid in the heat exchanger 7a, and the temperature cannot be lowered to the temperature inside the tank 1c. Although it is a lean liquid, some of the dissolved gas remains, so if the lean liquid is released to the low-pressure absorption tower without dropping to the temperature inside the tank 1c, the dissolved gas will be released and absorbed. The pressure in the column rises, and the expansion ratio in the turbine 4 decreases.

Therefore, it is necessary to further provide a heat exchanger 7b using a cold / hot source to cool the lean liquid. Further, cooling inside the condensation absorber 1 is necessary because heat of dissolution is generated when the lean liquid absorbs the gas, so that the pressure rise in the absorption tower is suppressed.

With such a configuration, the heat exchangers require 7a and 7b, and the heat exchangers 7c in the condensation absorber 1 and heat exchangers at three locations, and a configuration of a power generation device using a non-azeotropic medium. There is a problem that it becomes bulky and the cost increases.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a power generation device using a non-azeotropic medium capable of having a simple configuration and being compact.

Therefore, the power generation device according to the embodiment of the present invention
A heater that heats a circulation medium made of a non-azeotropic medium,
A gas-liquid separator that separates the gas and liquid generated by the heating,
A generator that rotates a turbine with the gas to generate electricity,
It comprises a condensing absorber that regenerates the gas derived from the turbine and the liquid derived from the gas-liquid separator as the circulation medium.
It is characterized by further including a bypass path and a cooler that guide a part of the circulation medium led to the outside from the condensation absorber to the cooler without guiding it to the heater.

Then, the power generation method according to the embodiment of the present invention is
The process of heating a circulation medium made of a non-azeotropic medium and
A gas-liquid separation step that separates the gas and liquid generated by the heating,
The process of rotating the turbine with the gas to generate electricity,
A step of regenerating the gas derived from the turbine and the liquid generated in the gas-liquid separation step as the circulation medium in the condensation absorber.
It includes a step of guiding a part of the circulation medium led to the outside from the condensate absorber to a cooler via a bypass path and cooling it without being subjected to the heating step.
It is characterized in that power is continuously generated by the circulation of the circulation medium.

According to the embodiment of the present invention, it is possible to obtain a power generation device using a non-azeotropic medium that has a simple structure and can be made compact.

The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the power generation apparatus and the power generation method by embodiment. The schematic diagram which shows the structure of the conventional non-azeotropic medium power generation apparatus.

Hereinafter, examples of a power generation device using a non-azeotropic medium according to the present invention will be described with reference to the drawings. In addition to water-ammonia, amine aqueous solution-carbon dioxide can be exemplified as a practical medium as a preferable non-azeotropic medium, but the present patent is not limited thereto.

The power generation method according to the embodiment and some preferable examples of the power generation method will be described with reference to the drawings.

<Power generation device>
FIGS. 1 to 5 show an outline of a preferable specific example of the power generation device according to the embodiment of the present invention.
The power generation device shown in FIGS. 1 to 5 is
A heater 2 that heats the circulation medium X made of a non-azeotropic medium, and
A gas-liquid separator 3 that separates the gas X1 and the liquid X2 generated by the heating,
A generator 5 that rotates a turbine 4 with the gas to generate electricity,
A condensing absorber 1 for regenerating the gas X1 derived from the turbine 4 and the liquid X2 derived from the gas-liquid separator 3 as the circulation medium X is provided.
A bypass path L2 and a cooler 6 for guiding a part of the circulation medium X led to the outside from the condensation absorber to the cooler 6 without leading to the heater 2 are further provided. ..

In the embodiment of FIGS. 1 to 5, in the condensing absorber 1, the gas X1 led from the turbine is brought into contact with the liquid X2 and the circulation medium X3 led from the gas-liquid separator 3 to bring the gas X1 into a liquid. It is absorbed by X2 and the circulation medium X3, and the gas X1 is condensed and regenerated as the circulation medium X. Therefore, the circulating medium X is a substance in which a gas (that is, mainly derived from the gas X1) is abundantly dissolved when it exists in the condensate absorber 1 and immediately after it is derived from the condensate absorber 1 to the outside. (Hereinafter, in the present specification, the "circulation medium X in which a gas is abundantly dissolved" may be referred to as a "rich medium"), and a relatively low temperature (for example, a water-ammonia-based non-azeotropic medium) is used. When used as the circulation medium X, it is at about room temperature (usually 5 to 40 ° C.).

The circulation medium X led to the outside from the condensation absorber 1 is heated by the heat exchanger 7 and then introduced into the heater 2. In the heater 2, the circulation medium X is heated by the heat supplied from the outside.

The heated circulation medium X is introduced into the gas-liquid separator 3 and separated into a gas X1 and a liquid X2 having a relatively high temperature and a high pressure. Of these, the gas X1 is introduced into the turbine 4 to expand and drive it. This driving energy is generated by driving the generator 5. The gas X1 discharged from the turbine 4 is guided to the condensation absorber 1.

On the other hand, the liquid X2 in the gas-liquid separator 3 is guided to the condensation absorber 1 after releasing heat in the heat exchanger 7. (Hereinafter, the liquid X2 may be referred to as a "lean medium" in the present specification.)
In the condensation absorber 1, as described above, the gas X1 guided from the turbine is brought into contact with the liquid X2 and the circulation medium X3 guided from the gas-liquid separator 3 to bring the gas X1 into contact with the liquid X2 and the circulation medium. The gas X1 is condensed and regenerated as the circulation medium X while being absorbed by X3. The circulation medium X regenerated in the condensation absorber 1 is circulated to the heater 2 again, and is used again for power generation in the same manner as described above.

In the condensing absorber 1 shown in FIGS. 1 to 4, a gas X1, a liquid X2 and a circulation medium X3 are introduced into the upper part of the absorption tower 1a, and the gas X1, the liquid X2 and the circulation medium X3 are in contact with each other. When descending inside the absorption tower 1a, the gas X1 is absorbed by the liquid X2 and the circulation medium X3, and the gas X1 is condensed and regenerated as the circulation medium X. In order to carry out this regeneration efficiently and surely, it is preferable to fill the inside of the absorption tower 1a with the filler 1b. The circulation medium X regenerated in the absorption tower 1a is temporarily stored in the tank 1c, taken out from the condensation absorber 1, circulated to the heater 2, and a part of the circulation medium X is circulated to the cooling equipment as the circulation medium X3. NS.

The condensing absorber 1 shown in FIG. 5 includes an ejector 1d and a tank 1c. When the gas X1, the liquid X2 and the circulation medium X3 introduced into the upper part of the ejector 1d descend inside the ejector 1d while being in contact with each other, the gas X1 is absorbed by the liquid X2 and the circulation medium X3 and the gas X1 is condensed. It is reproduced as a circulation medium X. The regenerated circulation medium X is temporarily stored in the tank 1c, taken out from the condensation absorber 1, circulated to the heater 2 again, and partly circulated to the cooling equipment as the circulation medium X3.

The power generation device according to the embodiment of the present invention has an essential configuration of a bypass path L2 for guiding the circulation medium X3, which is a part of the circulation medium X led to the outside from the condensation absorber 1, to the cooler 6, and the cooler 6. It is equipped as. That is, the circulation medium X3, which is a part of the circulation medium X led to the outside from the condensation absorber 1, is guided to the cooler 6 and circulated to the condensation absorber 1 without being guided to the heater 2. Equipped with cooling equipment. Here, the "cooling equipment" includes at least one cooler 6 and means for circulating the circulation medium X3 (for example, distribution lines L1 to L3 of the circulation medium X3, and if necessary, a pump 8 or a jet pump described later). 11 etc.).

In particular, in the embodiment shown in FIGS. 1 and 2, the circulation of the circulation medium X3 is performed by using the pump 8 that introduces the circulation medium X into the heater 2. Therefore, in such an embodiment, a branch portion 9 is usually provided after the pump 8 so that the circulation medium X3 is guided to the cooler 6 via the bypass path L2.

Further, in the embodiment shown in FIGS. 3 to 5, the circulation of the circulation medium X3 is performed without using the pump 8 for introducing the circulation medium X into the heater 2. When the pump 8 is not used in this way, a circulation path of the circulation medium X3 can be provided separately from the circulation path of the circulation medium X. In such a case, since the driving force of the pump 8 can be reduced, the size of the pump 8 can be reduced, the driving energy can be reduced, and the operating cost of the device can be reduced.

As described above, the power generation device according to the embodiment of the present invention requires a predetermined condensing absorber 1, a heater 2, a gas-liquid separator 3, a bypass path L2, and a cooler 6, but includes a circulation medium X and a gas. A distribution line (for example, distribution lines L1, L3 to L9, etc.) for circulating or circulating X1, a liquid X2, and a circulation medium X3, a pump 8, a jet pump 11, which will be described later, and the like can be provided as needed. ..

The condenser absorber 1 shown in FIGS. 1-4, does not include a heat exchanger inside the condensable absorber 1.

<< First Embodiment >>
The power generation device according to the first embodiment of the present invention will be described with reference to FIG.

In this embodiment, the line of the circulation medium X from the condensation absorber 1 to the heater 2 is branched at the branch portion 9, and the circulation medium X3 which is a part of the circulation medium X is guided from the gas-liquid separator 3. After merging with the liquid X2 (merging portion 10), it is guided to the heat cooler 6, cooled by the cooler 6, and then returned to the condensation absorber 1.

In the first embodiment, in the first embodiment, the liquid X3 guided to the cooler 6 via the bypass path L2 and the liquid X2 guided from the gas-liquid separator 3 to the cooler 6 merge and merge. It corresponds to a specific example of having a merging portion 10 in which the liquids X3 + X2 are coupled so as to be guided to the cooler 6.

In the present embodiment, since the cooler 6 can sufficiently exchange heat by cooling the circulation medium X3 and the liquid X2, the heat exchanger (7c in FIG. 7) in the condensation absorber 1 is used. Can be deleted. In the present embodiment configured as described above, the temperature of the liquid X2 can be lowered by merging with the circulation medium X3, and cooling in the condensing absorber 1 is not required. The configuration is simplified.

Then, in the present embodiment, the circulation medium X3 is merged with the higher temperature liquid X2 to raise the temperature, and then introduced into the cooler 6. Therefore, the cooling effect of the cooler 6 is high. As a result, a sufficient cooling effect can be obtained even if the cooler 6 is relatively small.

<< Second Embodiment >>
The power generation device according to the second embodiment of the present invention will be described with reference to FIG.

In the present embodiment, the line of the circulation medium X from the condensing absorber 1 to the heater 2 is branched at the branch portion 9, and the circulation medium X3 which is a part of the circulation medium X is passed through the bypass path L2 to the thermal cooler 6. After cooling with the cooler 6, and after merging with the liquid X2 guided from the gas-liquid separator 3 (merging portion 10), the merged liquid X3 + X2 is configured to return to the condensing absorber 1.

The embodiment of FIG. 2 corresponds to a specific example in which the liquid X2 derived from the gas-liquid separator 3 has a path for being directly introduced into the condensing absorber 1.

In the present embodiment, since the cooler 6 can sufficiently exchange heat by cooling the circulation medium X3, the inside of the condensation absorber 1 can be cooled. Then, in the present embodiment configured as described above, the temperature of the liquid X2 can be lowered by merging with the circulation medium X3. For this reason, since cooling in the condensing absorber 1 (7c in FIG. 7) is unnecessary, the configuration of the condensing absorber 1 is simplified.

Since the driving force of the pump 8 can be reduced in this second embodiment as compared with the first embodiment described above, the size of the pump 8 can be reduced, the driving energy can be reduced, the device operating cost can be reduced, and the like. Can be done.

<< Third Embodiment >>
The power generation device according to the third embodiment of the present invention will be described with reference to FIG.

In the embodiment of the third embodiment, the circulation medium X3 is guided to the cooler 6, merges with the liquid X2 guided from the gas-liquid separator 3, and then circulated to the condensing absorber 1 as described above. It is similar to the second embodiment.

In the present embodiment, the cooler 6 can cool the inside of the condensation absorber 1 by cooling the circulation medium X3. Then, in the present embodiment configured as described above, the temperature of the liquid X2 can be lowered by merging with the circulation medium X3. For this reason, since cooling in the condensing absorber 1 (7c in FIG. 7) is unnecessary, the configuration of the condensing absorber 1 is simplified.

In the third embodiment, the circulation medium X3 is generated by arranging the jet pump at the confluence and supplying the liquid X2 as the driving fluid of the jet pump 11 and the circulation medium X3 as the driven fluid to the jet pump 11. It is configured to circulate. Therefore, the circulation medium X3 can be circulated without the help of the pump 8. Therefore, this third embodiment can reduce the driving force of the pump 8 as compared with the first and second embodiments described above, so that the pump 8 can be downsized, the driving energy can be reduced, and the device operating cost can be reduced. Can be reduced.

<< Fourth Embodiment >>
The power generation device according to the fourth embodiment of the present invention will be described with reference to FIG.

In the embodiment of FIG. 4, the liquid X3 guided to the cooler 6 via the bypass path L2 and the liquid X2 guided from the gas-liquid separator 3 to the cooler 6 merge, and the merged liquid X3 + X2 is cooled. It corresponds to a specific example of having a merging portion 10 that is connected so as to be guided by the vessel 6.

In the fourth embodiment, the circulation medium X3 is generated by arranging the jet pump at the confluence and supplying the liquid X2 as the driving fluid of the jet pump 11 and the circulation medium X3 as the driven fluid to the jet pump 11. It is configured to circulate. Therefore, the circulation medium X3 can be circulated without the help of the pump 8. Therefore, this fourth embodiment can reduce the driving force of the pump 8 as compared with the first and second embodiments described above, so that the pump 8 can be downsized, the driving energy can be reduced, and the device operating cost can be reduced. Can be reduced.

In the present embodiment, the cooler 6 can remove the heat exchanger (7c in FIG. 7) in the condensation absorber 1 by cooling the circulation medium X3 and the liquid X2. In the present embodiment configured as described above, the temperature of the liquid X2 can be lowered by merging with the circulation medium X3, and cooling in the condensing absorber 1 (7c in FIG. 7) is unnecessary. Therefore, the configuration of the condensing absorber 1 is simplified.

Then, in the present embodiment, the circulation medium X3 is merged with the liquid X2 having a higher temperature to raise the temperature, and then the circulation medium X3 is introduced into the cooler 6. Therefore, the cooling effect of the cooler 6 is high. As a result, a sufficient cooling effect can be obtained even with a relatively small cooler 6.

<< Fifth Embodiment >>
The power generation device according to the fifth embodiment of the present invention will be described with reference to FIG.

This embodiment is a power generation device having substantially the same configuration as the power generation device according to the third embodiment shown in FIG. 3, except that the form of the condensing absorber 1 is different. That is, in the third embodiment, the condensing absorber 1 has an absorption tower 1a containing the filler 1b and a tank 1c below the absorption tower 1a, but in the fifth embodiment, the condensing absorber 1 has. It has an ejector 1d and a tank 1c below it.

In the fifth embodiment, as in the third embodiment, the circulation medium X3 is circulated by supplying the liquid X2 as the driving fluid of the jet pump 11 and the circulation medium X3 as the driven fluid to the jet pump 11. It is configured to do. Therefore, the circulation medium X3 can be circulated without the help of the pump 8. Therefore, in this fifth embodiment, the driving force of the pump 8 can be reduced as compared with the first and second embodiments described above, so that the size of the pump 8 can be reduced, the driving energy can be reduced, and the device operating cost can be reduced. Can be reduced.

In the fifth embodiment, the liquid X2 and the circulation medium X3 are used as the driving fluid of the ejector 1d, and the gas X1 is supplied to the ejector 1d as the driven fluid.

As described above, in the fifth embodiment, since the circulation medium X3 is further increased in the liquid X2 as the driving fluid supplied to the ejector 1d, the suction force by the ejector 1d becomes stronger.

Although only one ejector is shown in FIG. 5, a plurality of ejectors 1d can be arranged in the condensing absorber 1.

The ejector 1d of this embodiment is preferably provided with a diffuser 1e downstream of the gas suction portion of the ejector 1d, and the direction of the tip of the diffuser 1e is a fluid. It is preferable that the tip of the diffuser 1e is below the liquid level of the circulation medium X in the tank 1c. The diffuser 1e downstream of the ejector 1d further reduces the pressure, thereby further promoting the dissolution of the gas and the pressure decrease in the condensing absorber 1, thereby achieving further improvement in power generation efficiency. be able to.

Then, by providing the outlet of the diffuser 1e at a position lower than the liquid level of the circulation medium X1 in the tank 1c, the generation of the gas component in the tank 1c is suppressed, and the gas component is transferred to the circulation medium X in the tank 1c. Can stay in the liquid for a long time. If the outlet of the diffuser 1e is located higher than the water level in the tank 1c, the generation of gas components in the tank 1c and the suction force by the ejector 1d or the diffuser 1e may decrease.

FIG. 6B shows a more preferred condensate absorber 1. The condensing absorber 1 of FIG. 6B is formed by further arranging the stirring promoting member 1f inside the diffuser 1e shown in FIG. 6A. In addition, although FIG. 6B specifically shows the one in which the three-layer stirring promoting member 1f is arranged, the content, the number of layers, the arrangement mode and the like of the stirring promoting member 1f are particularly limited. There is nothing.

In the power generation device according to the fifth embodiment of the present invention, the cooler 6 can cool the inside of the condensation absorber 1 by cooling the circulation medium X3. Then, in the present embodiment configured as described above, the temperature of the liquid X2 can be lowered by merging with the circulation medium X3. For this reason, since cooling in the condensing absorber 1 (7c in FIG. 7) is unnecessary, the configuration of the condensing absorber 1 is simplified.

The condensate absorber 1 comprising the ejector 1d, the diffuser 1e or the stirring accelerating member 1f, as described above and detailed by FIGS. 6A and 6B, replaces the condensate absorber 1 in the first to fourth embodiments. It can also be adopted in each of the above embodiments.

<Power generation method>
The power generation method according to the embodiment is
The process of heating the circulation medium X made of a non-azeotropic medium and
A gas-liquid separation step of separating the gas X1 and the liquid X2 generated by the heating,
The process of rotating the turbine 4 with the gas to generate electricity, and
A step of regenerating the gas X1 derived from the turbine 4 and the liquid X2 generated in the gas-liquid separation step as the circulation medium X in the condensation absorber 1.
A step of guiding a part of the circulation medium X (circulation medium X3) led out from the condensation absorber 1 to the cooler 6 through the bypass path L2 and cooling the circulation medium X without being attached to the heating step is included. And
It is characterized in that power is continuously generated by the circulation of the circulation medium. It is characterized in that power is continuously generated by the circulation of the circulation medium X.

Here, the "step of heating the circulation medium X made of a non-azeotropic medium" can be carried out in the heater 2 described above and in FIGS. 1 to 6.

The "gas-liquid separation step of separating the gas X1 and the liquid X2 generated by the heating" can be carried out in the gas-liquid separator 3 described above and FIGS. 1 to 6.

The "step of rotating the turbine 4 with the gas X1 to generate electricity" can be carried out by the turbine 4 and the generator 5 described above and FIGS. 1 to 6.

"A step of regenerating the gas X1 derived from the turbine 4 and the liquid X2 derived from the gas-liquid separator 3 as the circulation medium X in the condensation absorber 1" is described above and FIGS. 1 to 6. It can be carried out in the condensing absorber 1.

The "step of guiding a part of the circulation medium X (circulation medium X3) led out from the condensation absorber 1 to the cooler 6 through the bypass path L2 and cooling it without being subjected to the heating step" , And can be carried out by the cooler 6 via the bypass path L2 shown in FIGS. 1-6.

"Continuous power generation by circulation of the circulation medium X" means that the circulation medium X made of a non-azeotropic medium is adopted, and the pumps described above and FIGS. 1 to 6 as necessary. 8. It can be carried out by using each distribution line or the like connecting between the jet pump 11 and each of the above devices.

Therefore, the power generation method according to the embodiment is preferably described in detail in FIGS. 1 to 6 and << first embodiment >> to << fifth embodiment >> for the <power generation device> ( For example, a branching portion 9, a merging portion 10, a distribution line L1, L3 to L9, an absorption tower 1a, a filler 1b, a tank 1c, an ejector 1d, a diffuser 1e, a stirring promoting member 1f, etc.) are provided as necessary. It can be carried out in a power generation device.

The power generation method according to the present embodiment is not limited to the one in which the "circulation of the circulation medium X3 to the condensing absorber 1" performed in the above cooling step is always performed at a constant level, and the "circulation" is performed during the power generation. It also includes those that change the level of "circulation of the medium X3 to the condensing absorber 1" or those that temporarily stop.

According to the power generation device according to each embodiment, the inside of the condensation absorber can be efficiently cooled by adding a simple and compact cooling device. As a result, the internal pressure at the outlet of the condensing absorber or the turbine can be reduced.

Further, in the power generation method according to the embodiment, by carrying out a specific cooling step, the capacity of the power generation turbine can be effectively increased, and the power generation capacity can be increased.

The power generation device and power generation method according to each embodiment can be preferably used for temperature difference power generation using waste heat, hot springs, or the like as a heat source, and even if the heat source has a relatively low thermal energy, it is more than conventional. It becomes possible to obtain high electric energy.

Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, changes, additions, and the like can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Condensation absorber, 2 ... Heater, 3 ... Gas-liquid separator, 4 ... Turbine, 5 ... Generator, 6 ... Cooler, 7 ... Heat exchanger, 8 ... Pump, 9 ... Branch, 10 ... Merge Part, 11 ... Jet pump, X ... Circulation medium, X1 ... Gas, X2 ... Liquid, X3 ... Circulation medium, L2 ... Bypass path, L1, L2 to L9 ... Distribution line, 1a ... Absorption tower, 1b ... Filler, 1c ... tank, 1d ... ejector, 1e ... diffuser, 1f ... stirring promoting member

Claims (10)

A heater that heats a circulation medium made of a non-azeotropic medium,
A gas-liquid separator that separates the gas and liquid generated by the heating,
A generator that rotates a turbine with the gas to generate electricity,
It comprises a condensing absorber that regenerates the gas derived from the turbine and the liquid derived from the gas-liquid separator as the circulation medium.
A part of the circulation medium is branched at a branch portion of the path of the circulation medium toward the heater, and the branched circulation medium is referred to as the branched circulation medium. A power generation device further comprising a bypass path leading to a cooler without leading to a heater, a cooler, and a path for returning the circulating medium after being cooled by the cooler to the condensed absorber. .. The power generation device according to claim 1, wherein the liquid derived from the gas-liquid separator has a path for being directly introduced into the condensing absorber. The power generation device according to claim 1, wherein the liquid derived from the gas-liquid separator has a path for being introduced into the cooler. A confluence portion where the liquid guided to the cooler via the bypass path and the liquid guided from the gas-liquid separator to the cooler merge and the merged liquid is combined so as to be guided to the cooler. The power generation device according to any one of claims 1 to 3. The power generation device according to claim 4, wherein the merging portion is a jet pump. The power generation device according to any one of claims 1 to 5, wherein the condensing absorber comprises an ejector and a tank. The condensing absorber is further provided with a diffuser downstream of the gas suction portion in the ejector, and the direction of the tip of the diffuser is vertically downward in the direction in which the fluid flows, and the tip of the diffuser is in the tank. The power generation device according to claim 6 , which is below the liquid level of. The power generation device according to claim 7, further comprising a stirring promoting member inside the diffuser. The power generation device according to any one of claims 1 to 8, wherein the condensing absorber does not include a heat exchanger inside. A heating step (a) for heating a circulation medium composed of a non-azeotropic medium, and
The gas-liquid separation step (b) for separating the gas and liquid generated by the heating, and
The step (c) of rotating the turbine with the gas to generate electricity,
The step (d) of regenerating the gas derived from the turbine and the liquid generated in the gas-liquid separation step (b) as the circulation medium in the condensation absorber, and the step (d).
A part of the circulation medium is branched from the circulation medium derived from the condensation absorber to the outside at a branch portion of the path of the circulation medium toward the heater for carrying out the heating step (a). A step (e) in which the branched circulation medium is guided to a cooler via a bypass path without being attached to the heating step (a), and the circulation medium after being cooled by the cooler is returned to the condensation absorber (e). Including and
A power generation method characterized in that power is continuously generated by circulation of the circulation medium.

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