WO2022172434A1 - Moteur stirling, pompe fluidyne, moteur thermique et système de génération d'électricité à stockage pompé - Google Patents

Moteur stirling, pompe fluidyne, moteur thermique et système de génération d'électricité à stockage pompé Download PDF

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Publication number
WO2022172434A1
WO2022172434A1 PCT/JP2021/005455 JP2021005455W WO2022172434A1 WO 2022172434 A1 WO2022172434 A1 WO 2022172434A1 JP 2021005455 W JP2021005455 W JP 2021005455W WO 2022172434 A1 WO2022172434 A1 WO 2022172434A1
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Prior art keywords
heat
tank
pump
water
fluidyne
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PCT/JP2021/005455
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English (en)
Japanese (ja)
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俊介 森嶋
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俊介 森嶋
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Priority to PCT/JP2021/005455 priority Critical patent/WO2022172434A1/fr
Priority to JP2022581142A priority patent/JPWO2022172434A1/ja
Publication of WO2022172434A1 publication Critical patent/WO2022172434A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines

Definitions

  • the present invention relates to Stirling engines, fluidyne pumps, heat engines, and pumped storage power generation systems.
  • a conventional pumped-storage power generation system is provided with two tanks (ponds) for storing water. It generates electricity by sending water to the water wheel of the machine.
  • energy mainly electric power
  • Patent Literature 1 the conventional pumped-storage power generation system as disclosed in Patent Literature 1 below is like a battery that temporarily converts surplus power into potential energy of water, and needs to be charged to generate power.
  • pumped storage power generation can be applied, for example, as a solar power generation device or an exhaust heat recovery power generation device, and the energy of flowing water caused by rainwater can be used as power generation energy, and power input from outside the system can be used.
  • An object of the present invention is to provide a Stirling engine, a fluidyne pump, a heat engine, and a pumped-storage power generation system capable of outputting electric power and improving power generation efficiency.
  • the pumped storage power generation system in the first aspect of the present invention includes: a central tank to which water is supplied from the outside and which can store the water; a lower tank positioned below the middle tank in the vertical direction, supplied with water from the outside, and capable of storing the water; a generator positioned below the middle tank in the vertical direction, generating electricity from water flowing in from the middle tank, and discharging the water used for power generation to the lower tank; and a first fluidine pump for pumping the water in the lower tank to the middle tank.
  • an upper tank positioned above the middle tank and the lower tank in the vertical direction, supplied with water from the outside, and capable of storing the water; a second fluidyne pump for pumping the water in the middle tank to the upper tank;
  • the generator is characterized in that it generates electricity from the water that flows in from the upper tank and the water that flows in from the middle tank.
  • a rainwater tank provided above each of the tanks and capable of storing rainwater; a rainwater-driven pump, which is installed vertically below the rainwater tank and driven by rainwater flowing from the rainwater tank, the pump pumping water from the lower tank to the upper tank; characterized by
  • an endothermic loop heat pipe capable of applying a heat load to a high-heat portion of the fluidyne pump; a heating unit that inputs heat to the endothermic loop heat pipe; and a heat radiating section capable of radiating heat from the endothermic loop heat pipe.
  • annular pipe having a compression pump and capable of applying a heat load to the hot section of the fluidyne pump; a heat-absorbing loop heat pipe that transfers heat to the annular pipe via a heat-exchanging heat sink; a heating unit that inputs heat to the endothermic loop heat pipe; and a heat radiating section capable of radiating heat from the endothermic loop heat pipe.
  • the heat dissipation part is a heat dissipating loop heat pipe having a second heat dissipating heat sink for dissipating heat; It is characterized by comprising a cylinder and a piston capable of transmitting the heat of the endothermic loop heat pipe to the heat radiating loop heat pipe.
  • the external combustion engine in the second aspect of the present invention is a Stirling engine or fluidyne pump; a heat-absorbing loop heat pipe capable of applying a heat load to a high-heat portion of the Stirling engine or the fluidyne pump; and a heating unit for inputting heat to the endothermic loop heat pipe.
  • the external combustion engine in the third aspect of the present invention is a Stirling engine or fluidyne pump; an annular pipe having a compression pump and capable of applying a heat load to the hot section of the Stirling engine or the fluidyne pump; a heat-absorbing loop heat pipe that transfers heat to the annular pipe via a heat-exchanging heat sink; and a heating unit for inputting heat to the endothermic loop heat pipe.
  • the external combustion engine in the fourth aspect of the present invention is a fluidyne pump in communication with the flow path; and a flow control valve provided downstream of a connection point with the fluidine pump in the flow path.
  • the pumped storage power generation system in the fifth aspect of the present invention is a fluidyne pump in communication with the flow path;
  • the rainwater-driven circulation pump is provided vertically below the rainwater tank and is driven by the rainwater flowing from the rainwater tank, and is provided in the flow path.
  • thermal energy such as solar energy and flow water energy such as rainwater can be converted into electric power, and application to exhaust heat recovery power generation is also possible.
  • FIG. 1 is an instrumentation diagram illustrating the configuration of a pumped-storage power generation system according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart illustrating processing by the pumped storage power generation system according to Embodiment 1 of the present invention
  • FIG. 5 is an instrumentation diagram illustrating the configuration of a heat transfer mechanism in Example 2 of the present invention
  • FIG. 9 is a flow chart illustrating processing (normal operation) by the pumped storage power generation system according to Embodiment 2 of the present invention
  • FIG. FIG. 9 is a flow chart explaining processing (heat dissipation operation) by the pumped-storage power generation system according to Embodiment 2 of the present invention.
  • FIG. FIG. 7 is an instrumentation diagram illustrating the configuration of a heat transfer mechanism in Example 3 of the present invention
  • the first and second fluidyne pumps used in the following examples have a fluid inside and are operated using this fluid.
  • a Stirling engine may also be used.
  • the number of the first full dyne pump (Stirling engine) and the number of the second full dyne pump (Stirling engine) are not limited to one each, and may be any number of one or more.
  • the pumped-storage power generation system 1 mainly includes an upper tank 11, a middle tank 12, a lower tank 13, a water purifier 14, a main generator 15, an auxiliary generator 16, a 1 Fluidyne Pump 17 (Fluidyne Pump), 2nd Fluidyne Pump 18 , rainwater tank 19 , and rainwater driven water pump 20 .
  • the upper tank 11 , the middle tank 12 , and the lower tank 13 are supplied with water from the outside through the flow path A.
  • a water purifier 14 for purifying pure water from water is provided in the flow path A, and a flow meter FT1 is provided downstream of the water purifier 14 . Further, the flow path A is branched into three flow paths A1, A2, and A3 on the downstream side of the flowmeter FT1.
  • Flow path A1, flow path A2, and flow path A3 are connected to upper tank 11, middle tank 12, and lower tank 13, respectively.
  • flow controllers FC1, FC2, and FC3 are provided in the flow paths A1, A2, and A3, respectively.
  • the upper tank 11 is located above the middle tank 12 and the lower tank 13 in the vertical direction, is provided downstream of the water purifier 14 via the flow paths A and A1, and stores pure water that has passed through the water purifier 14. (hereinafter simply referred to as “water”) can be stored. Further, the upper tank 11 is provided with an upper tank heater 21 . Furthermore, one end of the first vent pipe VE1, one end of the second vent pipe VE2, and one end of the third vent pipe VE3 are connected to the ceiling of the upper tank 11 .
  • a flow path B is connected to the bottom of the upper tank 11 .
  • This flow path B is provided with a gate valve VA1.
  • the middle tank 12 is located below the upper tank 11 and above the lower tank 13 in the vertical direction, and is provided downstream of the water purifier 14 via the flow paths A and A2. Water passing through 14 can be collected.
  • a central tank heater 22 is provided in the central tank 12 . Furthermore, the other end of the second vent pipe VE2 and one end of the fourth vent pipe VE4 are connected to the ceiling of the middle tank 12 .
  • the flow path C is connected to the bottom of the middle tank 12, and the flow path C joins the flow path B at a point on the downstream side of the gate valve VA1.
  • a closing gate valve C1 is provided in the flow path C.
  • the flow path B branches into flow paths B1 and B2 on the downstream side of the confluence point with the flow path C. As shown in FIG.
  • the lower tank 13 is located below the upper tank 11 and the middle tank 12 in the vertical direction, is provided downstream of the water purifier 14 via the flow paths A and A3, and receives water that has passed through the water purifier 14. can accumulate.
  • a lower tank heater 23 is provided in the lower tank 13 .
  • the other end of the third ventilation pipe VE3 and the other end of the fourth ventilation pipe VE4 are connected to the ceiling of the lower tank 13 .
  • a flow path D is connected to the lower tank 13 .
  • the main generator 15 is located below the upper tank 11 and the middle tank 12 in the vertical direction, is located above the lower tank 13, and is provided downstream of the upper tank 11 via the flow paths B and B1. It is provided on the downstream side of the middle tank 12 via (a part of) the flow path B, the flow path B1, and the flow path C.
  • a flow path D is connected to the main power generator 15 .
  • the main power generator 15 generates power by rotating the water wheel with water flowing in from the upper tank 11 located vertically above itself, and the water used for power generation is discharged to the flow path D.
  • the closing gate valve C1 it is also possible to use the water flowing in from the middle tank 12 located vertically above itself (the main generator 15 can use the water flowing in from the upper tank 11). or the water flowing from the central tank 12 is switched by the valves VA1 and C1).
  • the auxiliary generator 16 is positioned below the upper tank 11 and the middle tank 12 in the vertical direction, is positioned above the lower tank 13, and is downstream of the upper tank 11 via the flow paths B and B2. Further, it is provided on the downstream side of the middle tank 12 via (part of) the flow path B, the flow path C, and the flow path B2.
  • a flow path E is connected to the auxiliary generator 16 .
  • shutoff valve FC4 is upstream of the main generator 15 in the flow path B1
  • a flow meter FT7 is further upstream thereof
  • a shutoff valve FC5 is further upstream of the auxiliary generator 16 in the flow path B2.
  • a flow meter FT8 is provided on the upstream side thereof.
  • the auxiliary power generator 16 generates power by rotating the water wheel with water flowing in from the upper tank 11 located vertically above itself, and the water used for power generation is discharged to the flow path E.
  • the main generator 15 by opening the closing gate valve C1, it is also possible to use the water flowing in from the central tank 12 located vertically above itself (the auxiliary generator 16 It is switched by the valves VA1 and C1 whether to generate power using the water flowing from the tank 11 or using the water flowing from the middle tank 12).
  • the flow path E merges with the flow path D.
  • a flow path F is connected to the lower tank 13 .
  • the middle tank 12 is provided downstream of the lower tank 13 via a flow path F and a flow path J, which will be described later. Further, the middle tank 12 is connected to the flow path G, and the upper tank 11 is connected to the middle tank 12 via the flow path G, the flow path L described later, and (a part of) the flow path I described later. It is provided on the downstream side and on the downstream side of the lower tank 13 via a flow path I, which will be described later.
  • a first fluid-in pump 17 is provided in the flow path F and pumps the water in the lower tank 13 to the middle tank 12 .
  • a second fluid-in pump 18 is provided in the flow path G and pumps the water in the middle tank 12 to the upper tank 11 .
  • the fluidyne pump will be briefly described. Although the first fluidyne pump 17 is described below as an example, the second fluidyne pump 18 has the same configuration.
  • the first fluidyne pump 17 has a U-shaped first pipe piece 17A that communicates with the flow path F in the vertical direction downward, and a linear second pipe piece that connects both upper ends of the pipe piece 17A with a slope. 17B, a high heat portion 17C and a cooling portion 17D provided at both upper end portions of the first pipe piece 17A.
  • the inside of the second tube piece 17B becomes a gas phase portion, a heat regenerator (having a small pressure loss and a large heat capacity) 17BA, and a cutoff valve 17BB provided closer to the cooling part 17D than the heat regenerator 17BA. is provided.
  • the cutoff valve 17BB is opened when the temperature of the gas phase on the side of the high heat portion 17C in the second pipe piece 17B reaches a predetermined temperature.
  • the water in the flow path F has entered into the first pipe piece 17A.
  • the fluidyne vibration phenomenon will naturally occur even if the cutoff valve 17BB is not provided.
  • the amount of heat input starts from the morning sun and gradually increases. In such a situation, the entire gas phase portion inside the second tube piece 17B is only uniformly warmed, and the vibration phenomenon is unlikely to occur.
  • the shut-off valve 17BB and closing it only the high-temperature portion 17C side of the second pipe piece 17B increases in volume from the shut-off valve 17BB, and as a result, the water surface in the first pipe piece 17A differs. occur.
  • the vibration phenomenon can be triggered.
  • the water level at the end on the high heat section 17C side is pushed down and the water level at the end on the cooling section 17D side is pushed up in the first pipe piece 17A. and Next, the water level at the end on the cooling section 17D side begins to fall due to gravity, and at the same time the water level at the end on the high heat section 17C side begins to rise. Furthermore, in the gas phase portion inside the second pipe piece 17B, the gas on the side of the high temperature portion 17C starts to flow toward the side of the cooling portion 17D.
  • the heat retained in the high heat section 17C side is taken away by the heat regenerator 17BA, and the cooled gas flows to the cooling section 17D side.
  • the gas temperature is further lowered by a cooler (not shown).
  • the gas moves from the cooling portion 17D side to the high temperature portion 17C side.
  • the heat regenerator 17BA By passing through the heat regenerator 17BA, the heat deprived earlier is recovered and flows to the high heat section 17C side.
  • the temperature of the gas On the side of the high heat section 17C, the temperature of the gas further rises due to the high heat section 17C.
  • the pressure of the entire gas phase portion rises, and the first pipe piece 17A tries to push out water from the flow path F into the pipe F (downstream of a fluidyne pump check valve 17E, which will be described later).
  • the force of the first pipe piece 17A repeatedly sucking and discharging water acts as a pump.
  • the pump check valves 17E and 17F the fluid can flow like a diaphragm pump. The above is a brief description of the fluidyne pump.
  • the flow path F has a flow control valve FO1 downstream of the connection with the first fluidyne pump 17, a flow meter FT2 downstream of the flow control valve FO1, and a three-way valve downstream of the flow meter FT2.
  • T1 is provided, and in the flow path G, the flow control valve FO2 is downstream of the connection point with the second fluidyne pump 18, the flow meter FT3 is downstream of the flow control valve FO2, and the flow meter FT3 is connected.
  • a three-way valve T2 is provided downstream.
  • the flow state near the high heat portion 17C is improved (the Nusselt number is improved), and the amount of heat input to the fluidyne is improved.
  • the channel F is connected to one end of the channel J and one end of the channel K by a three-way valve T1.
  • the other end of the flow path J is connected to the central tank 12, and the other end of the flow path K merges with a drain pipe DR, which will be described later.
  • the channel G is connected to one end of the channel L and one end of the channel M by a three-way valve T1.
  • the other end of the flow path L joins the flow path I described later, and the other end of the flow path M joins the flow path K.
  • the flow paths K and M are provided with check valves CH1 and CH2, respectively.
  • Water level gauges LS1, LS2, and LS3 are provided on each side of the upper tank 11, middle tank 12, and lower tank 13, respectively. While the pumping operation is working, the first fluidy-in pump 17 and the second fluidy-in pump 18 always keep pumping according to the heat input to them. At that time, it is necessary to appropriately switch the main generator 15 or the auxiliary generator 16 so that the water pumped into the tanks 11 and 12 and the water discharged from the tanks 11 and 12 are balanced.
  • both the main generator 15 and the auxiliary generator 16 start generating electricity.
  • the shutoff valve FC4 provided on the flow path B1 to the main generator 15 is closed, or the auxiliary power generator
  • the shutoff valve FC5 provided on the flow path B2 to the machine 16 is closed.
  • each generator has a characteristic of power generation efficiency, and when the amount of falling water is small, it is preferable to allow a small amount of water to flow through the large main generator 15. This is because it is more efficient to generate power with the auxiliary generator 16 for small flow rates.
  • Air pressure gauges PT1, PT2, and PT3 are provided on the ceilings of the upper tank 11, middle tank 12, and lower tank 13, respectively.
  • water temperature gauges TT1, TT2, and TT3 are provided on each side of the upper tank 11, middle tank 12, and lower tank 13, respectively.
  • the upper tank heater 21 starts when the water temperature in the upper tank 11 falls below a first predetermined temperature and stops when it exceeds a second predetermined temperature based on the measurement of the water temperature gauge TT1.
  • the middle tank heater 22 is activated when the water temperature of the middle tank 12 falls below the first predetermined temperature and stops when the water temperature exceeds the second predetermined temperature based on the measurement of the water temperature gauge TT2.
  • the lower tank heater 23 is activated when the water temperature in the lower tank 13 falls below the first predetermined temperature and stops when the water temperature exceeds the second predetermined temperature based on the measurement of the water temperature gauge TT3.
  • the rainwater tank 19 is provided above the upper tank 11, the middle tank 12, and the lower tank 13 in the vertical direction, and can store rainwater.
  • a channel H is connected to the bottom of the rainwater tank 19 .
  • the rainwater-driven water pump 20 is provided below the rainwater tank 19 in the vertical direction, and is powered by the rainwater that flows from the rainwater tank 19 through the flow path H.
  • a rainwater-driven water pump 20 is provided in the flow path I.
  • the flow path I branches from the upstream side of the first fluid-in pump 17 of the flow path F and is connected to the upper tank 11 . Therefore, the rainwater-driven water pump 20 can pump the water in the lower tank 13 to the upper tank 11 through the channel I.
  • the upper tank 11 is provided on the downstream side of the lower tank 13 via the flow paths F and I, and the water in the lower tank 13 flows into it.
  • a flow meter FT4 is provided downstream of the rainwater-driven water pump 20 in the flow path I. As shown in FIG.
  • the lower tank 13 is provided with a drain pipe DR for discharging the water in the tank to the outside.
  • the drain pipe DR is provided with a closing gate valve C2 and a check valve CH3 on the downstream side thereof.
  • the water in the middle tank 12 and the lower tank 13 can be discharged by the flow path K, the flow path M, and the drain pipe DR. These are for draining water during maintenance.
  • the first fluidyne pump 17 and the second fluidyne pump 18 are provided with water level gauges LS4, LS5, air pressure gauges PT4, PT5, thermometers TT4, TT5, and flowmeters FT5, FT6, respectively. These configurations are for monitoring the state of internal energy of the first fluid-in pump 17 and the second fluid-in pump 18 . As already explained, if the internal energy grasped by these configurations is low, the degree of opening of the flow control valve FO1 is decreased, and if it is too high, the degree of opening of the flow control valve FO1 is increased.
  • the air pressure is equal to the atmospheric pressure. Because it is connected to , the air pressure is equal to the atmospheric pressure.
  • the present embodiment has been described with the upper tank 11 provided, the present invention is not limited to this, and can be established without the upper tank 11. That is, the upper tank 11 and associated mechanisms (the second full-dyne pump 18, each measuring instrument, each flow path, each ventilation pipe, the rainwater tank 19, the rainwater-driven pump 20, etc.) can be omitted. .
  • the auxiliary power generator 16 is provided, but the present invention is not limited to this, and can be established without the auxiliary power generator 16 . That is, the auxiliary generator 16 and the flow paths B2, E can be omitted.
  • the rainwater tank 19 and the rainwater-driven pump 20 are provided, but the present invention is not limited to this, and the rainwater tank 19 and the rainwater-driven pump are provided. It works even without 20. That is, the rainwater tank 19, the rainwater-driven pump 20, and the flow path I can be omitted, and the flow path L can be connected to the upper tank 11 instead of joining the flow path I (however, As already explained, when the middle tank 12 and the like are omitted, the flow path J instead of the flow path L is connected to the upper tank 11).
  • step S1 water from outside passes through the water supply and is stored in the upper tank 11, middle tank 12, and lower tank 13, respectively.
  • the middle tank heater 22 and the lower tank heater 23 are activated to raise the temperatures.
  • step S2 the water stored in the lower tank 13 is pumped by the first fluidyne pump 17 to the middle tank 12 based on the measurements of the water level gauges LS1, LS2, and LS3, and the second fluidyne pump 18 By pumping up the water stored in the tank 12 to the upper tank 11, the water levels of the upper tank 11, the middle tank 12 and the lower tank 13 are adjusted.
  • step S3 which is performed in parallel with step S2, the rainwater stored in the rainwater tank 19 flows into the rainwater-driven pump 20, and the water stored in the lower tank 13 is pumped up to the upper tank 11. be able to.
  • step S ⁇ b>4 the water stored in the upper tank 11 flows into the main generator 15 and the auxiliary generator 16 to generate power.
  • the closed gate valve C1 may be opened and the water in the upper tank 11 and the water from the middle tank 12 may be used together, or only the water in the middle tank 12 may be used.
  • one of the main generator 15 and the auxiliary generator 16 may be used by opening and closing the cutoff valves FC4 and FC5.
  • step S4 the water level is adjusted in this way. Water used for power generation is stored in the lower tank 13 .
  • water is supplied from the outside, a central tank 12 that can store the water, and a central tank 12 that is positioned below the central tank 12 in the vertical direction and is supplied with water from the outside, A lower tank 13 capable of storing the water, and a generator located below the middle tank 12 in the vertical direction to generate electricity from the water flowing in from the middle tank 12 and discharge the water used for power generation to the lower tank 13.
  • main generator 15 only, or main generator 15 and auxiliary generator 16 and a first fluidyne pump 17 for pumping the water in the lower tank 13 to the middle tank 12, so that the fluidyne pump It can convert thermal energy into the potential energy of water with high efficiency (approaching the efficiency of the Carnot cycle).
  • the potential energy of water can be generated with high power generation efficiency by a generator that is appropriately designed based on the positional relationship of the tank.
  • the pumped-storage power generation system 1 further includes an upper tank 11 which is positioned above the middle tank 12 and the lower tank 13 in the vertical direction, is supplied with water from the outside, and can store the water.
  • a second fluidic pump 18 for pumping the water in the tank 12 to the upper tank 11; Since power is generated using water and water flowing from the middle tank 12, power can be generated with even higher power generation efficiency.
  • a rainwater tank 19 is provided above the tanks 11, 12, and 13 and can store rainwater, and the rainwater tank 19 is provided below the rainwater tank 19 in the vertical direction,
  • the pump is powered by the rainwater flowing from the rainwater tank 19 and is driven by the rainwater-driven pump 20 for pumping the water in the lower tank 13 to the upper tank 11, so it has high potential energy in the natural state.
  • the tanks 11, 12, 13 are provided with the water temperature gauges TT1, TT2, TT3 and the tank heaters 21, 22, 23. Water in 11, 12, 13 can be prevented from freezing.
  • the pumped-storage power generation system 2 has the structure of the pumped-storage power generation system 1 according to the first embodiment, in which heat is applied to the high heat portion 17C of the first fluidyne pump 17 (and the high heat portion of the second fluidyne pump 18). is provided with a heat transfer mechanism that provides The heat transfer mechanism will be described below. However, although the heat transfer mechanism for the high heat portion 17C of the first fluidyne pump 17 will be described below, a similar heat transfer mechanism is provided on the high heat portion side of the second fluidyne pump 18 as well.
  • the heat transfer mechanism 2A in this embodiment includes a heat absorbing loop heat pipe 31, a heating section 32, and a heat radiating section 33 as main components.
  • the heating portion 32 and the heat radiating portion 33 are provided in the endothermic loop heat pipe 31 (however, in this embodiment and a third embodiment described later, the heat pipe may be used instead of the loop heat pipe. ).
  • the heating unit 32 inputs heat into the endothermic loop heat pipe 31 .
  • the heating unit 32 may be composed of, for example, a vacuum tube heat pipe that absorbs the heat of sunlight.
  • the present invention is not limited to this, and exhaust heat from an internal combustion engine or the like may be applied to heat input to the heating unit 32 .
  • the high heat portion 17C of the first fluidyne pump 17 is provided on the loop heat pipe 31 for heat absorption. As a result, a heat load can be applied from the endothermic loop heat pipe 31 to the high heat portion 17C.
  • the heat radiation part 33 mainly includes a first heat radiation heat sink 41, a cylinder 42, a piston 43, a heat radiation loop heat pipe 44, a second heat radiation heat sink 45, a third heat radiation heat sink 46, an automatic valve 47, and an electromagnetic valve.
  • a valve 48 is provided to allow the heat in the endothermic loop heat pipe 31 to be released.
  • the first heat radiation heat sink 41 is provided on the heat absorption loop heat pipe 31 (in FIG. 3, it is described as being provided apart from the high heat portion 17C, but in reality it is provided at substantially the same position). This point also applies to the positional relationship between the first heat sink 41 for heat radiation and the heat sink 51 for heat exchange in Example 3 (FIG. 6) described later). Further, the cylinder 42 and the piston 43 are capable of transmitting the heat of the endothermic loop heat pipe 31 to the heat radiating loop heat pipe 44 .
  • the section from the heating section 32 through the high heat section 17C to the first heat radiating heat sink 41 is the gas phase section, and the rest is the liquid phase section.
  • the cylinder 42 is a cylindrical member having an opening 42A between one end and the other end (near the center in the extending direction). It is provided in contact with the heat sink 41 . Also, the contact portion of the side wall 42B with the first heat sink 41 is made of a thermally conductive material.
  • the piston 43 is provided inside the cylinder 42 and includes a piston heat pipe 43A, a first piston heat sink 43B, a second piston heat sink 43C, a partition member 43D, and a spring 43E.
  • the piston heat pipe 43A is a linear heat pipe extending coaxially with the axis of the piston 43.
  • the first piston heat sink 43B is a heat sink provided at one end of the cylinder 42 in the piston heat pipe 43A.
  • the second piston heat sink 43C is a heat sink provided at the other end of the cylinder 42 in the piston heat pipe 43A.
  • the partition member 43D is provided at one end of the cylinder 42 in the first piston heat sink 43B and slides on the inner peripheral surface of the cylinder 42 .
  • the air is shielded between the front side and the back side of the partition member 43D.
  • the spring 43E is provided at the end of the second piston heat sink 43C on the other end side of the cylinder 42 and spans between the inside of the other end surface of the cylinder 42 and the spring 43E.
  • a through hole 42C is provided in one end (end surface) of the cylinder 42, and the chamber O on the one end side of the cylinder 42, which is shielded by the partition member 43D, communicates with the first heat radiating section ventilation pipe VE5 through the through hole 42C. ing.
  • One end of the first heat radiating section ventilation pipe VE5 is connected to the through hole 42C, and the other end is connected to the gas supply device (not shown) via the automatic valve 47.
  • the automatic valve 47 is controlled by opening and closing operations of the electromagnetic valve 48 . That is, when the electromagnetic valve 48 is opened, the instrument air is supplied, thereby opening the automatic valve 47 .
  • the gas supply device supplies service air. That is, service air is supplied to the chamber O from the gas supply device when the automatic valve 47 is opened.
  • the third heat sink 46 for heat radiation is provided on the loop heat pipe 44 for heat radiation (however, in this embodiment and a third embodiment described later, this may be a heat pipe instead of the loop heat pipe).
  • the cylinder 42 is provided such that a portion of the side wall 42D on the other end side of the opening 42A is in contact with the third heat sink 46 for heat radiation. Also, the contact portion of the side wall 42D with the third heat sink 46 is made of a thermally conductive material.
  • the second heat sink 45 for heat dissipation is provided on the loop heat pipe 44 for heat dissipation.
  • the cylinder 42 has the opening 42A between the one end and the other end, the cylinder 42 does not have the opening 42A, and is composed of two cylindrical members with the one end and the other end completely separated from each other. It may consist of Alternatively, the function of the partition member 43D may be provided to the first piston heat sink 43B, and the partition member 43D may be omitted.
  • the heat radiating section 33 can release the heat accumulated in the heat transfer mechanism 2A to the outside of the system. While the pumped-storage power generation system 2 according to the present embodiment is not activated, heat is radiated by the heat radiating section 33 . This allows safe operation. Further, the heat radiating section 33 is automatically connected even when the temperature of the high heat section 17C becomes abnormally high by a temperature sensor TT6, which will be described later, thereby enabling safe operation.
  • the heat radiation part 33 is configured such that the first heat sink 41 and the third heat sink 46 are joined and separated by a thermal conductor that can be manually operated by, for example, attaching a handle.
  • the heat dissipation state and the non-heat dissipation state may be realized by switching between and.
  • steps S11 to S15 in FIG. 4 are a flowchart for normal operation
  • steps S21 to S24 in FIG. 5 are a flowchart for heat dissipation operation.
  • step S11 the solenoid valve 48 is energized and opened, so that the instrumentation air is guided to the automatic valve 47, and the automatic valve 47 is opened.
  • step S12 service air is supplied into the chamber O through the first heat radiating section vent pipe VE5, and the first piston heat sink 43B is pressed against the other end side of the cylinder 42, thereby causing the first piston heat sink 43B and the The first heat sink for heat radiation 41 is separated from the first heat sink 41 in the axial direction of the cylinder 42 .
  • step S13 the amount of heat input from the heating unit 32 is transmitted to the loop heat pipe 31 for endothermic absorption.
  • step S14 a heat load is applied to the high heat portion 17C of the first fluidyne pump 17 by the loop heat pipe 31 for heat absorption.
  • step S15 the first fluidyne pump 17 is driven to generate power as in step S2 of FIG. 2 described in the first embodiment.
  • step S21 the electromagnetic valve 48 (three-way valve) is de-energized, and the secondary side instrumentation air pipe becomes atmospheric pressure. Then, the single-acting automatic valve 47 is closed.
  • step S22 the service air is discharged from the chamber O through the first heat radiator vent pipe VE5, the piston 43 is moved by the force of the spring 43E, and the first piston heat sink 43B is pressed against the other end side of the cylinder 42.
  • the first piston heat sink 43B and the first heat radiation heat sink 41 overlap each other in the axial direction of the cylinder 42 .
  • step S23 heat transfer from the endothermic loop heat pipe 31 to the cylinder 42 and the piston 43
  • the heat in the endothermic loop heat pipe 31 is transferred from the first heat radiating heat sink 41 through the heat conductive material portion of the side wall 42B. It is transmitted to the first piston heat sink 43B.
  • the heat transmitted to the first piston heat sink 43B is transmitted to the piston heat pipe 43A and the second piston heat sink 43C.
  • step S24 heat transfer from the cylinder 42 and the piston 43 to the heat radiation loop heat pipe 44
  • the heat of the second piston heat sink 43C is transferred to the third heat radiation heat sink 46 through the heat conductive material of the side wall 42D, and then to the heat radiation. After that, the heat is radiated to the outside from the second heat sink 45 on the loop heat pipe 44 for heat dissipation.
  • the above is the general description of the operation of the pumped-storage power generation system 2 according to the present embodiment.
  • a heat absorption loop heat pipe 31 capable of applying a heat load to the high heat portion 17C of the first fluidyne pump 17 (and the high heat portion of the second fluidyne pump 18), Since the heating portion 32 for inputting heat to the endothermic loop heat pipe 31 and the heat radiating portion 33 for releasing heat from the endothermic loop heat pipe 31 are provided, the first fluidyne as described in the first embodiment is provided.
  • the pump 17 second fluidyne pump 18
  • unnecessary heat in the endothermic loop heat pipe 31 can be released to the outside.
  • the heat dissipation unit 33 includes a heat dissipation loop heat pipe 44 having a second heat dissipation heat sink 45 for dissipating heat, and a heat dissipation loop heat pipe 44 for dissipating heat from the heat absorption loop heat pipe 31 . Since the cylinder 42 and the piston 43 that can be transmitted to 44 are provided, heat can be easily dissipated.
  • Example 3 A pumped-storage power generation system 3 according to this embodiment is obtained by partially changing the heat transfer mechanism in the second embodiment.
  • parts overlapping with the second embodiment will be omitted as much as possible, and different parts will be mainly described.
  • the heat transfer mechanism for the high heat portion 17C of the first fluidyne pump 17 will be described below, a similar heat transfer mechanism is provided on the high heat portion side of the second fluidyne pump 18 as well.
  • the high heat portion 17C of the first fluidyne pump 17 (second fluidyne pump 18) is provided on the endothermic loop heat pipe 31.
  • a heat exchange heat sink 51 is provided instead.
  • the heat exchange heat sink 51 is installed so as to bridge the endothermic loop heat pipe 31 and the annular pipe 52 .
  • the annular pipe 52 is further provided with a compression pump 53, a pressure reducing valve 54, and a high heat section 17C, so that a heat load can be applied to the high heat section 17C.
  • Temperature sensors TT6 to TT9 are provided between the members of the heat exchange heat sink 51 and the annular pipe 52, respectively.
  • the heat exchange heat sink 51 transfers heat from the endothermic loop heat pipe 31 to the annular pipe 52 .
  • a heat medium is circulated in the annular pipe 52 by a compression pump 53 .
  • the heat transferred from the endothermic loop heat pipe 31 to the heat exchange heat sink 51 is given to this heat medium.
  • the heat medium in the annular pipe 52 is further heated by the compression pump 53, and a heat load can be applied to the high heat portion 17C of the first fluidy-in pump 17 (second fluidy-in pump 18) on the downstream side. .
  • the pressure reducing valve 54 is provided downstream of the high heat portion 17 ⁇ /b>C of the first fluidy-in pump 17 .
  • the heat medium pressurized by the compression pump 53 of the back pressure valve 54 maintains a high pressure state up to the primary side of the pressure reducing valve 54, and expands on the secondary side of the pressure reducing valve 54, thereby lowering the temperature of the heat medium.
  • the pumped-storage power generation system 3 has the compression pump 53, and applies heat load to the high heat portion 17C of the first fluidyne pump 17 (and the high heat portion of the second fluidyne pump 18).
  • a heat-absorbing loop heat pipe 31 through which heat is transferred to the annular pipe 52 via the heat exchange heat sink 51; a heating unit 32 that inputs heat to the heat-absorbing loop heat pipe 31; Since it is equipped with a heat radiating part 33 capable of radiating heat from the loop heat pipe 31, in addition to the effects of the second embodiment, when automating the device, it is possible to keep the device running stably.
  • the compression pump 53 the amount of heat given from the heating unit 32 to the fluidyne pumps 17 and 18 can be increased.
  • the present invention is suitable as a pumped-storage power generation system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un système de génération d'électricité à stockage pompé dont la commodité peut être améliorée. La solution selon l'invention porte sur un système de génération d'électricité à stockage pompé qui est pourvu : d'un réservoir central (12) auquel de l'eau est fournie depuis l'extérieur, et dans lequel l'eau peut s'accumuler ; d'un réservoir inférieur (13) qui est positionné au-dessous du réservoir central (12) dans une direction verticale, auquel de l'eau provenant de l'extérieur est fournie, et dans laquelle l'eau peut s'accumuler ; d'un générateur d'électricité principal (générateur d'électricité principal (15) uniquement, ou un générateur d'électricité principal (15) et un générateur d'électricité auxiliaire (16)) qui est positionné au-dessous du réservoir central (12) dans la direction verticale, génère de l'électricité au moyen de l'eau qui s'écoule depuis le réservoir central (12), et qui évacue l'eau utilisée pour la génération d'électricité vers le réservoir inférieur (13) ; et une ou plusieurs premières pompes Fluidyne ou un ou plusieurs premiers moteurs Stirling qui pompent l'eau du réservoir inférieur (13) vers le réservoir central (12).
PCT/JP2021/005455 2021-02-15 2021-02-15 Moteur stirling, pompe fluidyne, moteur thermique et système de génération d'électricité à stockage pompé WO2022172434A1 (fr)

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PCT/JP2021/005455 WO2022172434A1 (fr) 2021-02-15 2021-02-15 Moteur stirling, pompe fluidyne, moteur thermique et système de génération d'électricité à stockage pompé
JP2022581142A JPWO2022172434A1 (fr) 2021-02-15 2021-02-15

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PCT/JP2021/005455 WO2022172434A1 (fr) 2021-02-15 2021-02-15 Moteur stirling, pompe fluidyne, moteur thermique et système de génération d'électricité à stockage pompé

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131426A (en) * 1977-04-22 1978-11-16 Hitachi Ltd Operation control method and equipment for water wheel
JPS5996487A (ja) * 1982-11-24 1984-06-02 Tadao Ikejiri 太陽熱を揚水に利用した水力発電方式
JPS6062351A (ja) * 1983-09-16 1985-04-10 株式会社長谷川工務店 雨水利用発電による排水システム
US20080250788A1 (en) * 2007-04-13 2008-10-16 Cool Energy, Inc. Power generation and space conditioning using a thermodynamic engine driven through environmental heating and cooling
JP2015034544A (ja) * 2013-07-09 2015-02-19 株式会社アルファプラスパワー 外燃機関を用いたエネルギーシステム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131426A (en) * 1977-04-22 1978-11-16 Hitachi Ltd Operation control method and equipment for water wheel
JPS5996487A (ja) * 1982-11-24 1984-06-02 Tadao Ikejiri 太陽熱を揚水に利用した水力発電方式
JPS6062351A (ja) * 1983-09-16 1985-04-10 株式会社長谷川工務店 雨水利用発電による排水システム
US20080250788A1 (en) * 2007-04-13 2008-10-16 Cool Energy, Inc. Power generation and space conditioning using a thermodynamic engine driven through environmental heating and cooling
JP2015034544A (ja) * 2013-07-09 2015-02-19 株式会社アルファプラスパワー 外燃機関を用いたエネルギーシステム

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