KR101817586B1 - Generating cycle system - Google Patents

Generating cycle system Download PDF

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Publication number
KR101817586B1
KR101817586B1 KR1020160016076A KR20160016076A KR101817586B1 KR 101817586 B1 KR101817586 B1 KR 101817586B1 KR 1020160016076 A KR1020160016076 A KR 1020160016076A KR 20160016076 A KR20160016076 A KR 20160016076A KR 101817586 B1 KR101817586 B1 KR 101817586B1
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KR
South Korea
Prior art keywords
power generation
working fluid
flow path
module
rotor
Prior art date
Application number
KR1020160016076A
Other languages
Korean (ko)
Other versions
KR20170095419A (en
Inventor
김영원
김호성
Original Assignee
한국생산기술연구원
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Application filed by 한국생산기술연구원 filed Critical 한국생산기술연구원
Priority to KR1020160016076A priority Critical patent/KR101817586B1/en
Priority to PCT/KR2017/001552 priority patent/WO2017138795A1/en
Publication of KR20170095419A publication Critical patent/KR20170095419A/en
Application granted granted Critical
Publication of KR101817586B1 publication Critical patent/KR101817586B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow

Abstract

The present invention relates to a power generation cycle system, which comprises a pump module for flowing a working fluid, a first heat exchange module for supplying and heating the working fluid at a rear end of the pump module, And a second heat exchange module for cooling the working fluid that has passed through the power generation module. The power generation module includes a flow passage for flowing the working fluid therein, A rotor having one or more blades, and a stator arranged to surround at least a part of the outer side of the rotor.

Description

{GENERATING CYCLE SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation cycle system, and more particularly, to a power generation cycle system capable of effectively transmitting a rotational force of a turbine to a generator while preventing a working fluid of the turbine from being leaked.

Generally, a power generation apparatus generates electricity by generating an induction current by using rotational force.

Particularly, in the case of a large-sized power generation apparatus, a method of converting energy used by a fluid to a rotational force by using a turbine is mainly used.

Since conventional turbine devices are mostly fluidly separated from the generator, a turbine rotating by the fluid is provided inside the power generation cycle system in which the working fluid circulates through the closed flow path, and the generator and the turbine outside the cycle system Respectively.

At this time, in the process of transmitting the rotational force of the turbine to the generator, a working fluid for rotating the turbine may leak to the outside along the rotational axis of the turbine.

In such a case, the working fluid may be lost. In particular, in the case of the organic Rankine cycle, the working fluid is often toxic or destroys the environment, and there is a problem that an accident or environmental destruction occurs due to the leakage fluid.

In order to prevent the above problems, there has been used a sealing bearing having an improved sealing performance of a bearing for fixing a rotating shaft of a turbine, or a technique of transmitting the rotational force inside the housing of the turbine to the outside of the housing by using magnetic force.

However, the sealing bearing has a problem that the power for fixing the rotating shaft of the turbine becomes larger in order to have a high sealing effect, which causes a loss of the rotating force of the turbine, and the power generation efficiency of the entire power generation apparatus is deteriorated.

In addition, when the rotational force is transmitted from the inside to the outside of the housing by using the magnetic force, since the rotors of both sides are not directly coupled to each other, the reliability is lowered. When the rotational force becomes stronger than a certain level, There is a problem.

On the other hand, when the working fluid leaks from the turbine housing and flows into the generator, there is a problem that the working fluid flowing into the generator can not be discharged, resulting in a problem in the generator.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a power generation cycle system capable of effectively transmitting a rotational force of a turbine to a generator and preventing leakage of a working fluid of the turbine.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided a power generation cycle system comprising: a pump module for flowing a working fluid; a first heat exchange module for heating and supplying the working fluid from a rear end of the pump module; And a second heat exchange module that cools the working fluid that has passed through the power generation module, wherein the power generation module has a flow path through which the working fluid flows And a stator disposed to surround at least a part of the outer side of the rotor.

Here, the rotor may have a relatively small diameter at a portion where the working fluid is supplied to the flow path formed therein.

The power generation module may include a recovery flow path for recovering the working fluid leaking from the flow path.

At this time, the recovery flow path may be formed on the lower surface of the power generation module.

In addition, the recovery flow path may be connected to a flow path through which the working fluid circulates.

The recovery flow path may include a sensor unit for measuring an amount of the fluid contained in the recovery flow path.

Meanwhile, the rotor may be formed so that the flow path is curved.

According to the power generation cycle system of the present invention, the following effects can be obtained.

First, since the sealing bearing is not used, the cost can be reduced and the rotating force of the turbine can be directly transmitted to the generator without loss, so that the power generation efficiency can be improved.

Second, since the leaked working fluid is recovered again, damage due to fluid leakage can be prevented.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing an embodiment of a power generation cycle system according to the present invention.
2 is a diagram showing a configuration of a power generation module of a power generation cycle system according to the present invention.
3 is a diagram showing a configuration of a modification of the power generation module of the power generation cycle system according to the present invention.
4 is a view illustrating a process of recovering a working fluid leaked from a power generation module of a power generation cycle system according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

Moreover, in describing the present invention, terms indicating a direction such as forward / rearward or upward / downward are described in order that a person skilled in the art can clearly understand the present invention, and the directions indicate relative directions, It is not limited.

First, the configuration of an embodiment of a power generation cycle system according to the present invention will be described in detail with reference to FIG. 1 to FIG.

2 is a view showing a configuration of a power generation module of a power generation cycle system according to the present invention, and FIG. 3 is a schematic view of a power generation cycle system according to an embodiment of the present invention. FIG. 4 is a view showing a process of recovering working fluid leaked from a power generation module of a power generation cycle system according to the present invention. FIG.

1, the power generation cycle system according to the present invention may include a pump module 100, a first heat exchange module 200, a power generation module 300, and a second heat exchange module 400 .

The pump module 100 is configured to flow the working fluid of the power generation cycle system according to the present invention, and various pumps generally used for fluid flow can be applied.

In this embodiment, a separate tank T for supplying the working fluid of the power generation cycle system according to the present invention is provided so as to move the working fluid from the tank T to generate a flow of the working fluid.

Such a configuration is not limited to the present embodiment, and the pump module 100 may be connected to the flow path to flow the working fluid therein without a separate tank T being provided.

The first heat exchange module 200 is configured to heat the operation fluid supplied from the pump module 100 at a rear end of the pump module 100 and may be constructed of various heat exchangers generally used.

Further, if the working fluid can supply sufficient heat to vaporize, its heat source may also be varied without limitation.

The power generation module 300 may be configured to receive the working fluid heated by the first heat exchange module 200 and to generate electricity using the flow of the working fluid.

In this embodiment, the power generation module 300 may include a rotor configured to convert energy, which flows through the working fluid, into rotational energy to produce electricity, and to rotate the energy to move around the stator and the stator.

A more detailed configuration of the power generation module 300 will be described later.

The second heat exchange module 400 is configured to cool and receive the working fluid that has passed through the power generation module 300. The second heat exchange module 400 is configured by various types of heat exchangers generally used as in the first heat exchange module 200 .

In addition, the second heat exchange module 400 may be formed in a structure for heat-exchanging heat, or may be cooled by a heat exchange with a separate heat source having a relatively lower temperature than the heated working fluid, The types are also not limited and may vary.

The power generation cycle system according to the present invention is not limited to the above-described configuration, but may be applied to a system for generating power using a working fluid circulating through a closed flow path The configuration is not limited, and various cycles can be applied.

A more specific configuration of the power generation module 300 of the power generation cycle system according to the present invention will be described in detail.

2, the power generation module 300 may include a base pipe 310, a rotor 320, a stator 330, and a recovery flow path 340.

The base pipe 310 may be provided inside the power generation module 300 to form a flow path through which the working fluid of the power generation cycle system according to the present invention flows.

That is, when the power generation module 300 is provided in the power generation cycle system according to the present invention, the base pipe 310 may be formed to connect the position where the working fluid is supplied and the position where the working fluid is discharged.

In this embodiment, it may be advantageous that the base pipe 310 is formed in a hollow cylindrical shape, and the center axis of the line through which the working fluid is supplied to the power generation module 300 and the center axis of the base pipe 310 It may be advantageous to be arranged so as to be the same.

Such a configuration can provide an effect that the base pipe 310 and the rotor 320 described later rotate more stably.

3, the flow path formed in the base pipe 310 may have a relatively narrow diameter at a portion where the working fluid is supplied to the interior of the power generation module 300. [

In this case, when the working fluid flows into the power generation module 300 in the course of flowing in the power generation system using the Rankine cycle, the pressure of the fluid is increased while passing through a portion formed with a relatively small diameter, It is possible to improve the output temporarily and dramatically.

That is, the power generation efficiency of the power generation module 300 can be improved.

The flow path formed in the base pipe 310 may be formed in a curved shape.

More specifically, it may be advantageous that the working fluid of the power generation cycle system according to the present invention flowing inside the base pipe 310 through the bending of the base pipe 310 is formed to be able to induce rotation and flow.

In this embodiment, at least one blade 312 is provided on the inner circumferential surface of the base pipe 310 so that the space inside the base pipe 310 can be bent through the blade 312.

The blade 312 generates a resistance to the flow of the working fluid inside the base pipe 310 so that the working fluid flows inside the base pipe 310 in a direction rotating about the central axis of the base pipe 310 .

That is, when the working fluid is rotated by the blade 312 in one direction inside the base pipe 310, the reaction of the base fluid 310 and the base pipe 310 causes the base pipe 310 to rotate in the opposite direction have.

The plurality of blades 312 may be inclined in the flow direction of the working fluid or may be formed in a spiral shape that rotates along the inner circumferential surface of the base pipe 310 or a plurality of blades 312 may be arranged in a spiral shape And can be variously applied.

In addition, it may be advantageous that the blades 312 are formed to protrude by the same or longer than the radius of the inner space of the base pipe 310.

The configuration of such a blade 312 is not limited to the present embodiment, and the shape and configuration may be various if the working fluid flowing inside the base pipe 310 is provided so as to induce the working fluid to rotate and flow have.

In addition, unlike the present embodiment, the flow path itself inside the base pipe 310 is formed in a spiral shape without the blade 312 and is configured to utilize the reaction due to the rotation of the working fluid flowing in the base pipe 310, The shape and configuration of the optical fiber 310 may vary without being limited to the present embodiment.

The base pipe 310 is configured to be connected to the inside of the housing of the power generation module 300 through a bearing B so that the base pipe 310 can be easily rotated. A ball bearing and the like can be applied.

Meanwhile, the rotor 320 rotates through a rotational force obtained through the flow energy of the working fluid. In this embodiment, the rotor 320 is coupled to the base pipe 310 so as to surround the outer circumferential surface of the base pipe 310, And may be configured to rotate with rotation.

In this embodiment, the rotor 320 is illustrated as being coupled to the outer circumferential surface of the base pipe 310. However, holes formed through the center of the rotor 320 are formed to be used as the base pipe 310 Configuration The configuration of the base pipe 310 and the rotor 320 may be variously applied, without being limited to the present embodiment.

The stator 330 is disposed adjacent to the rotor 320 and is disposed to surround at least a part of the outer side of the stator 330 in the present embodiment, May be configured to rotate.

The configuration of the rotor 320 and the stator 330 can be applied to a configuration of a rotary type or rotary electric generator that is applied to a general electric generator and is configured by the action between the rotating rotor 320 and the stator 330, The configuration is not limited and may vary.

The vaporized working fluid flows and flows into the power generation module 300 of the power generation cycle system according to the present invention to rotate the rotor 320 and to be discharged to the outside of the power generation module 300 The power generation cycle system according to the present invention can be circulated.

In this case, in a general power generation system using the Rankine cycle, loss of torque may occur in the process of transmitting the rotational force from the turbine that converts the flow energy of the working fluid to the rotational force to the generator that generates electricity using the rotational force. In the power generation cycle system, since the base pipe 310 including the blades 312 serving as a turbine and the rotor 320 are directly coupled, an effect that no loss occurs in the transmission of the rotational force can be obtained.

3, when the working fluid is supplied to the power generation module 300 and discharged through the base pipe 310 to the outside of the power generation module 300, The rotor 320 and the stator 330 can be leaked through the gap between the housing of the rotor 310 and the base pipe 310 and the clearance between the bearings.

Accordingly, the power generation module 300 of the power generation cycle system according to the present invention may be provided with the recovery flow path 340 for recovering the working fluid leaked from the base pipe 310 described above.

Since the power generation cycle system according to the present invention is a configuration of a Rankine cycle using a closed flow path, the working fluid supplied to the power generation module 300 may be in a state of high temperature and high pressure.

In this case, the space in which the rotor 320 and the stator 330 are provided in the power generation module 300 may be a relatively low pressure and temperature environment as compared with the inner space of the base pipe 310.

Accordingly, since the working fluid in a vaporized state can be introduced and liquefied into the space where the rotor 320 and the stator 330 are provided, the recovery flow path 340 is formed on the lower surface of the inner space of the power generation module 300 Can be advantageous.

Further, it may be advantageous that the recovery flow path 340 is connected to the circulation flow path of the working fluid of the power generation cycle system according to the present invention.

In the present embodiment, a tank T capable of supplying and recovering the working fluid is provided, and the recovery flow path 340 may be configured to be connected to the tank T.

With this configuration, the working fluid leaked from the power generation module 300 can be returned to the power generation cycle system according to the present invention, and the effect of preventing the leakage of the working fluid can be obtained.

The recovery flow path 340 may include a sensor unit (not shown) for measuring the amount of the fluid contained in the recovery flow path 340.

More specifically, the sensor unit may include a sensor capable of measuring the level of the working fluid on the upper side of the recovery flow path 340 connected to the lower portion of the power generation module 300.

When the working fluid leaking into the recovery flow path 340 is collected over a predetermined amount, the sensor unit senses it and drives the separate pump P provided in the recovery flow path 340 to return the working fluid inside the recovery flow path 340 Can be discharged to the tank (T).

The power generation cycle system according to the present invention including the above-described configuration uses a bearing (B) for rotating the base pipe (310) inside the power generation module (300) It is possible to obtain an effect of reducing the cost required for manufacturing and repairing.

Also, the rotation force of the base pipe 310 can be prevented from being lost due to the sealing bearing, so that the rotational force of the base pipe 310 can be transmitted to the rotor 320 without fail.

Therefore, the power generation efficiency of the power generation cycle system according to the present invention can be greatly improved.

Further, the working fluid leaked by using the general bearing (B) can be returned to the inside of the power generation cycle system without being discharged to the outside of the power generation cycle system according to the present invention, or discarded.

Therefore, it is possible to prevent the damage such as the breakage of the environment, the accident caused by the poisonous working fluid, and the effect of reducing the cost and the process cost for replenishing the leaked fluid due to the leakage of the fluid have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is self-evident to those of ordinary skill in the art. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

100: Pump module
200: first heat exchange module
300: power generation module
310: Base pipe
312: blade
320: rotor
330: stator
340:
400: second heat exchange module

Claims (7)

A pump module for flowing a working fluid;
A first heat exchange module for receiving and heating the working fluid from a rear end of the pump module;
A power generation module for generating electricity through the flow of the working fluid heated by the first heat exchange module; And
A second heat exchange module for cooling the working fluid passing through the power generation module;
≪ / RTI >
The power generation module includes:
A rotor in which a flow path through which the working fluid flows is formed, and at least one blade is provided on an inner circumferential surface of the flow path;
A stator disposed to surround at least a part of the outer side of the rotor; And
And a recovery flow path for recovering the working fluid leaked from the flow path,
The recovery flow path
A sensor unit for measuring an amount of the fluid accommodated inside; And
And a pump operable when the amount of the fluid sensed through the sensor unit is greater than a predetermined amount to circulate the fluid contained in the recovery flow path to a flow path through which the working fluid flows. The method according to claim 1,
The rotor
Wherein a diameter of a portion where the working fluid is supplied is formed to be relatively small. delete The method according to claim 1,
The recovery flow path
Wherein the power generation module is formed on a lower surface of the power generation module. delete delete The method according to claim 1,
The rotor
Wherein the flow path is bent.
KR1020160016076A 2016-02-12 2016-02-12 Generating cycle system KR101817586B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020160016076A KR101817586B1 (en) 2016-02-12 2016-02-12 Generating cycle system
PCT/KR2017/001552 WO2017138795A1 (en) 2016-02-12 2017-02-13 Power generation cycle system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160016076A KR101817586B1 (en) 2016-02-12 2016-02-12 Generating cycle system

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KR20170095419A KR20170095419A (en) 2017-08-23
KR101817586B1 true KR101817586B1 (en) 2018-01-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001041A (en) * 2018-06-26 2020-01-06 한국생산기술연구원 GjENERATOR WITH ONE-BODY TYPE ROTOR-TURBINE AND GENERATING CYCLE SYSTEM INCLUDING THE SAME
KR20200001039A (en) * 2018-06-26 2020-01-06 한국생산기술연구원 Generator with one-body type rotor and turbine and generating cycle system including the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102136372B1 (en) * 2018-09-20 2020-07-21 한국생산기술연구원 Generator with one-body type rotor and turbine and generating cycle system including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000054978A (en) * 1998-08-07 2000-02-22 Hitachi Ltd Rotary fluid machine and its use

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000054978A (en) * 1998-08-07 2000-02-22 Hitachi Ltd Rotary fluid machine and its use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001041A (en) * 2018-06-26 2020-01-06 한국생산기술연구원 GjENERATOR WITH ONE-BODY TYPE ROTOR-TURBINE AND GENERATING CYCLE SYSTEM INCLUDING THE SAME
KR20200001039A (en) * 2018-06-26 2020-01-06 한국생산기술연구원 Generator with one-body type rotor and turbine and generating cycle system including the same
KR102077731B1 (en) * 2018-06-26 2020-02-17 한국생산기술연구원 Generator with one-body type rotor and turbine and generating cycle system including the same
KR102087054B1 (en) * 2018-06-26 2020-03-11 한국생산기술연구원 GjENERATOR WITH ONE-BODY TYPE ROTOR-TURBINE AND GENERATING CYCLE SYSTEM INCLUDING THE SAME

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