WO2015064347A1 - Vapor generation device and vapor generation heat pump - Google Patents
Vapor generation device and vapor generation heat pump Download PDFInfo
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- WO2015064347A1 WO2015064347A1 PCT/JP2014/077218 JP2014077218W WO2015064347A1 WO 2015064347 A1 WO2015064347 A1 WO 2015064347A1 JP 2014077218 W JP2014077218 W JP 2014077218W WO 2015064347 A1 WO2015064347 A1 WO 2015064347A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/34—Adaptations of boilers for promoting water circulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a vapor generation device and a vapor generation heat pump. A vapor generation device (10) is configured such that the upper part of a gas-liquid separator (16) and the upper part of an evaporator (20) is connected by upper piping (22) and the lower part of the gas-liquid separator (16) and the lower part of the evaporator (20) are connected by lower piping (24), to thereby form a thermo-siphon circuit. The thermo-siphon circuit supplies water within the gas-liquid separator (16) to the evaporator (20) through the lower piping (24), causes the water to be evaporated by the heat exchange between the water and a refrigerant flowing through the evaporator (20), supplies vapor generated by the evaporator (20) to the gas-liquid separator (16) through the upper piping (22), and delivers the vapor through the gas-liquid separator (16). The positional relationship between the evaporator (20) and the gas-liquid separator (16) is specified so that the position of the vapor outlet of the evaporator (20) is located below the surface of the water stored within the gas-liquid separator (16).
Description
本発明は、サーモサイフォン現象を利用して気液分離器から蒸発器へと水を循環させて蒸気を生成する蒸気生成装置及び該蒸気生成装置を備えた蒸気生成ヒートポンプに関する。
The present invention relates to a steam generation device that generates steam by circulating water from a gas-liquid separator to an evaporator using a thermosiphon phenomenon, and a steam generation heat pump including the steam generation device.
例えば、発電設備や工業プラント等に備えられる熱機関や固体酸化物形燃料電池等では蒸気が必要となるため、通常、蒸気生成装置が併設される。
For example, since a steam is required in a heat engine, a solid oxide fuel cell, or the like provided in a power generation facility or an industrial plant, a steam generation device is usually provided.
このような蒸気生成装置として、特許文献１には、冷媒が流通する伝熱コアを有する蒸発器と、水を貯留する気液分離器とを並設し、これら蒸発器と気液分離器の上部と下部とをそれぞれ上部配管と下部配管とで連通させたサーモサイフォン現象を利用した蒸気発生装置が開示されている。この蒸気生成装置は、サーモサイフォン現象によって気液分離器内の水を下部配管を通じて蒸発器へと循環させ蒸気を生成し、生成した蒸気を上部配管から気液分離器へと供給した後、外部機器へと送り出す構成となっている。
As such a steam generation device, Patent Document 1 discloses that an evaporator having a heat transfer core through which a refrigerant flows and a gas-liquid separator that stores water are arranged side by side. A steam generator using a thermosiphon phenomenon in which an upper part and a lower part are communicated with each other by an upper pipe and a lower pipe is disclosed. This steam generator generates water by circulating water in the gas-liquid separator to the evaporator through the lower pipe due to the thermosyphon phenomenon, and supplies the generated steam from the upper pipe to the gas-liquid separator. It is configured to send out to the equipment.
上記特許文献１に記載されているような従来構成の蒸気生成装置では、気液分離器と蒸発器とが高さ方向で略同位置に設置しているため、気液分離器から蒸発器へと循環される水の流量が常時一定となり、制御はできない。このため、蒸発器での負荷が変動した場合であっても供給される水の流量は変わらないため、蒸発器での熱交換性能を向上させることが難しく、蒸気の生成効率も低いものとなる。
In the steam generation device having the conventional configuration as described in Patent Document 1, the gas-liquid separator and the evaporator are installed at substantially the same position in the height direction, so that the gas-liquid separator is transferred to the evaporator. The flow rate of the circulated water is always constant and cannot be controlled. For this reason, since the flow rate of the supplied water does not change even when the load on the evaporator fluctuates, it is difficult to improve the heat exchange performance in the evaporator, and the steam generation efficiency is low. .
そこで、気液分離器から蒸発器へと水を供給する下部配管の途中に循環ポンプを設置し、蒸発器に供給される水の流量を制御することも考えられるが、循環ポンプの駆動のための動力が必要となり、また循環ポンプによって装置全体が大型化及び複雑化し、コストも増加する。
Therefore, it is conceivable to install a circulation pump in the middle of the lower pipe that supplies water from the gas-liquid separator to the evaporator, and to control the flow rate of the water supplied to the evaporator. In addition, the entire apparatus becomes larger and complicated by the circulation pump, and the cost also increases.
本発明は、上記従来技術の課題を考慮してなされたものであり、蒸発器へと循環される水の流量を制御することができ、蒸気の生成効率を向上させることができる蒸気生成装置及び該蒸気生成装置を備えた蒸気生成ヒートポンプを提供することを目的とする。
The present invention has been made in consideration of the above-described problems of the prior art, can control the flow rate of water circulated to the evaporator, and can improve the steam generation efficiency and It aims at providing the steam generation heat pump provided with this steam generation device.
本発明に係る蒸気生成装置は、水を貯留する気液分離器と、冷媒が流通する蒸発器とを備え、前記気液分離器と前記蒸発器の上部及び下部をそれぞれ上部配管と下部配管で連通することにより、気液分離器内の水を前記下部配管を介して蒸発器に供給すると共に前記冷媒との熱交換によって蒸発させ、該蒸発器で生成した蒸気を前記上部配管を介して気液分離器に供給すると共に、該気液分離器から送り出すサーモサイフォン回路を形成した蒸気生成装置であって、前記蒸発器での蒸気の出口が、前記気液分離器内に貯留された水の水面よりも低位置となるように、前記蒸発器と前記気液分離器の高さ方向の位置関係を規定したことを特徴とする。
A steam generator according to the present invention includes a gas-liquid separator that stores water and an evaporator through which a refrigerant flows, and the upper and lower parts of the gas-liquid separator and the evaporator are an upper pipe and a lower pipe, respectively. By communicating, the water in the gas-liquid separator is supplied to the evaporator through the lower pipe and evaporated by heat exchange with the refrigerant, and the vapor generated in the evaporator is vaporized through the upper pipe. A steam generation device that forms a thermosiphon circuit that is supplied to the liquid separator and is sent out from the gas-liquid separator, wherein an outlet of the steam in the evaporator is the water stored in the gas-liquid separator. The positional relationship in the height direction of the evaporator and the gas-liquid separator is defined so as to be lower than the water surface.
また、本発明に係る蒸気生成ヒートポンプは、水を貯留する気液分離器と、冷媒が流通する蒸発器とを有し、前記気液分離器と前記蒸発器の上部及び下部をそれぞれ上部配管と下部配管で連通することにより、気液分離器内の水を前記下部配管を介して蒸発器に供給すると共に前記冷媒との熱交換によって蒸発させ、該蒸発器で生成した蒸気を前記上部配管を介して気液分離器に供給すると共に、該気液分離器から送り出すサーモサイフォン回路を形成した蒸気生成装置と、圧縮機と、該圧縮機の吐出側に接続される冷媒凝縮器と、該冷媒凝縮器の出口側に接続される膨張弁と、該膨張弁の出口側に接続される冷媒蒸発器とを有し、前記冷媒を循環させる冷媒サイクル装置とを備えた蒸気生成ヒートポンプであって、前記蒸発器として前記冷媒サイクル装置の冷媒凝縮器を用い、前記蒸発器での蒸気の出口が、前記気液分離器内に貯留された水の水面よりも低位置となるように、前記蒸発器と前記気液分離器の高さ方向の位置関係を規定したことを特徴とする。
The steam generation heat pump according to the present invention includes a gas-liquid separator that stores water and an evaporator through which a refrigerant flows, and the upper and lower portions of the gas-liquid separator and the evaporator are respectively connected to an upper pipe. By communicating with the lower pipe, the water in the gas-liquid separator is supplied to the evaporator through the lower pipe and evaporated by heat exchange with the refrigerant, and the vapor generated by the evaporator is passed through the upper pipe. A steam generator that forms a thermosiphon circuit that is supplied to the gas-liquid separator through the gas-liquid separator and is sent out from the gas-liquid separator, a compressor, a refrigerant condenser connected to the discharge side of the compressor, and the refrigerant A steam generation heat pump comprising: an expansion valve connected to an outlet side of the condenser; a refrigerant evaporator connected to an outlet side of the expansion valve; and a refrigerant cycle device for circulating the refrigerant, As the evaporator Using the refrigerant condenser of the medium cycle device, the evaporator and the gas-liquid separation are so arranged that the outlet of the vapor in the evaporator is positioned lower than the surface of the water stored in the gas-liquid separator. The positional relationship in the height direction of the vessel is defined.
このような構成によれば、サーモサイフォン現象を利用して水を循環する回路構成において、蒸発器と気液分離器との間に高低差を設け、蒸発器を気液分離器よりも下方に配置することにより、気液分離器内の水位を変化させるだけで、気液分離器から蒸発器へと下部配管を介して循環供給される水の流量を変化させることができる。これにより、蒸発器での負荷（熱交換量）が変化した場合にも、蒸発器での熱交換効率を最適に制御して蒸気の生成効率を向上させ、生成される蒸気量も増加することができ、さらに蒸発器の小型化も可能となる。
According to such a configuration, in a circuit configuration in which water is circulated using the thermosiphon phenomenon, a height difference is provided between the evaporator and the gas-liquid separator, and the evaporator is placed below the gas-liquid separator. By disposing, the flow rate of water circulated and supplied from the gas-liquid separator to the evaporator via the lower pipe can be changed only by changing the water level in the gas-liquid separator. As a result, even when the load (heat exchange amount) in the evaporator changes, the heat exchange efficiency in the evaporator is optimally controlled to improve the steam generation efficiency and the amount of steam generated is also increased. In addition, the evaporator can be miniaturized.
この場合、前記下部配管又は前記気液分離器には、内部に水を供給するための給水配管が接続されており、前記蒸発器での水と冷媒との間の熱交換量に基づき、前記給水配管からの給水量を変化させ、前記気液分離器内の水位を制御するとよい。
In this case, a water supply pipe for supplying water to the inside is connected to the lower pipe or the gas-liquid separator, and based on the amount of heat exchange between the water and the refrigerant in the evaporator, It is preferable to control the water level in the gas-liquid separator by changing the amount of water supplied from the water supply pipe.
前記熱交換量として、前記蒸発器への前記冷媒からの入力熱量を用いてもよい。また、前記熱交換量として、前記気液分離器から送り出される蒸気の流量を用いてもよい。
The amount of heat input from the refrigerant to the evaporator may be used as the amount of heat exchange. Moreover, you may use the flow volume of the vapor | steam sent out from the said gas-liquid separator as said heat exchange amount.
本発明によれば、簡素な構成で気液分離器から蒸発器へと循環供給される水の流量を変化させることができる。これにより、蒸発器での負荷が変化した場合にも、蒸発器での熱交換効率を最適に制御し、蒸気の生成効率を向上させることができる。
According to the present invention, the flow rate of water circulated and supplied from the gas-liquid separator to the evaporator can be changed with a simple configuration. Thereby, even when the load on the evaporator changes, the heat exchange efficiency in the evaporator can be optimally controlled, and the steam generation efficiency can be improved.
以下、本発明に係る蒸気生成装置について好適な実施の形態を挙げ、添付の図面を参照しながら詳細に説明する。
Hereinafter, preferred embodiments of the steam generating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.
図１は、本発明の一実施形態に係る蒸気生成装置１０を備えた蒸気生成ヒートポンプ１２の全体構成図であり、図２は、図１に示す蒸気生成装置１０の構成図である。
FIG. 1 is an overall configuration diagram of a steam generation heat pump 12 including a steam generation device 10 according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of the steam generation device 10 shown in FIG.
図１に示すように、蒸気生成ヒートポンプ１２は、水を蒸発させて蒸気を生成し、外部へと送り出す蒸気生成装置１０と、蒸気生成装置１０での蒸気生成のための熱源となる冷媒サイクル装置１４と、システムの制御を行うコントローラ１５（図２参照）とを備える。
As shown in FIG. 1, a steam generation heat pump 12 generates a steam by evaporating water and sends the steam to the outside, and a refrigerant cycle apparatus serving as a heat source for generating steam in the steam generation apparatus 10 14 and a controller 15 (see FIG. 2) for controlling the system.
先ず、蒸気生成装置１０は、容器内部に水を貯留する気液分離器１６と、冷媒サイクル装置１４を循環する冷媒が流通する蒸発器（蒸気生成器）２０とを備え、気液分離器１６と蒸発器２０の上部及び下部がそれぞれ上部配管２２及び下部配管２４で連通されることによりサーモサイフォン回路が形成されている。
First, the steam generator 10 includes a gas-liquid separator 16 that stores water inside the container, and an evaporator (steam generator) 20 through which a refrigerant circulating in the refrigerant cycle device 14 circulates. And the upper and lower portions of the evaporator 20 are communicated with each other by an upper pipe 22 and a lower pipe 24 to form a thermosiphon circuit.
図２に示すように、気液分離器１６は、鉛直方向に沿った円筒状容器で構成され、気液分離器１６の下部に接続された下部配管２４に接続された給水配管２６から水が給水補給されることで、容器内部に水を貯留するものである。給水配管２６は、図示しない水道管や水タンクと接続され、その途中に気液分離器１６内へと水を圧送するための水ポンプ２８が設けられている。水ポンプ２８は、コントローラ１５によって回転数が制御されることで、気液分離器１６内への給水流量を変化させ、気液分離器１６内に貯留する水の水位Ｗ１を変化させることができる。給水配管２６は、下部配管２４に代えて気液分離器１６に接続することもできるが、水ポンプ２８の吸込み配管でのキャビテーションを防止する点から、下部配管２４に接続する方が好ましい。
As shown in FIG. 2, the gas-liquid separator 16 is constituted by a cylindrical container along the vertical direction, and water is supplied from a water supply pipe 26 connected to a lower pipe 24 connected to a lower part of the gas-liquid separator 16. By supplying water, water is stored inside the container. The water supply pipe 26 is connected to a water pipe or a water tank (not shown), and a water pump 28 for pumping water into the gas-liquid separator 16 is provided in the middle. The water pump 28 can change the water level W <b> 1 of the water stored in the gas-liquid separator 16 by changing the water supply flow rate into the gas-liquid separator 16 by controlling the rotation speed by the controller 15. . Although the water supply pipe 26 can be connected to the gas-liquid separator 16 instead of the lower pipe 24, it is preferable to connect to the lower pipe 24 from the viewpoint of preventing cavitation in the suction pipe of the water pump 28.
気液分離器１６は、その下端壁に下部配管２４が接続され、その側壁上部に上部配管２２が接続され、その上端壁に蒸気送出配管３０が接続されている。下部配管２４は、気液分離器１６内に貯留している水を蒸発器２０へと供給するための液管である。上部配管２２は、蒸発器２０内で生成された蒸気を気液分離器１６へと供給するための蒸気管である。蒸気送出配管３０は、蒸発器２０で生成され、上部配管２２を介して気液分離器１６内に供給されて気液分離された後の蒸気を、外部の蒸気利用機器側へと送り出すための配管である。つまり、下部配管２４の接続口１６ａが水の出口となり、上部配管２２の接続口１６ｂが蒸気の入口となり、蒸気送出配管３０の接続口１６ｃが気液分離後の蒸気の出口となる。
The gas-liquid separator 16 has a lower pipe 24 connected to its lower end wall, an upper pipe 22 connected to the upper part of the side wall, and a steam delivery pipe 30 connected to its upper end wall. The lower pipe 24 is a liquid pipe for supplying water stored in the gas-liquid separator 16 to the evaporator 20. The upper pipe 22 is a steam pipe for supplying the steam generated in the evaporator 20 to the gas-liquid separator 16. The steam delivery pipe 30 is used to send the steam generated by the evaporator 20 and supplied to the gas-liquid separator 16 via the upper pipe 22 and separated into gas and liquid to the external steam utilization device side. It is piping. That is, the connection port 16a of the lower pipe 24 becomes an outlet of water, the connection port 16b of the upper pipe 22 becomes an inlet of steam, and the connection port 16c of the steam delivery pipe 30 becomes an outlet of steam after gas-liquid separation.
蒸気送出配管３０には図示しない圧力調整弁が設置されている。コントローラ１５は、図示しない圧力センサによって検出される気液分離器１６内の蒸気圧力に基づき、前記圧力調整弁の開度を制御することにより、蒸気送出配管３０から送り出される蒸気圧力を所定値に制御することができる。
The steam delivery pipe 30 is provided with a pressure control valve (not shown). The controller 15 controls the opening of the pressure adjusting valve based on the vapor pressure in the gas-liquid separator 16 detected by a pressure sensor (not shown), thereby setting the vapor pressure sent from the vapor delivery pipe 30 to a predetermined value. Can be controlled.
気液分離器１６の内部には、貯留されている水の水位Ｗ１を測定する水位センサ３２が設置されている。水位センサ３２で検知された水位Ｗ１の検出値ＷＬは、コントローラ１５に送信され、水ポンプ２８の回転数制御に利用される。
In the gas-liquid separator 16, a water level sensor 32 for measuring the water level W1 of the stored water is installed. The detected value WL of the water level W1 detected by the water level sensor 32 is transmitted to the controller 15 and used for controlling the rotational speed of the water pump 28.
図２に示すように、蒸発器２０は、下部配管２４から供給される水を蒸発させ、上部配管２２から蒸気として気液分離器１６へと供給するものである。
As shown in FIG. 2, the evaporator 20 evaporates the water supplied from the lower pipe 24 and supplies it to the gas-liquid separator 16 from the upper pipe 22 as steam.
蒸発器２０は、例えば、プレートフィン型熱交換器であり、冷媒サイクル装置１４側の冷媒が流通する冷媒通路１８ａと、水（及び蒸気）が流通する水通路１８ｂとが交互に積層配置されている。蒸発器２０では、冷媒通路１８ａが鉛直方向で上方から下方へと冷媒を流通させ、水通路１８ｂが鉛直方向で下方から上方へと水を流通させ、これら冷媒と水とが対向流となって熱交換することにより、水が蒸発して蒸気が生成される。下部配管２４から供給される水は、蒸発器２０内において、水位Ｗ２より下方部分では水（液相）であり、水位Ｗ２の上方で水と蒸気が混ざった状態（混合相）となり、その上方では蒸気（気相）となる。
The evaporator 20 is, for example, a plate fin type heat exchanger, and a refrigerant passage 18a through which the refrigerant on the refrigerant cycle device 14 side circulates and a water passage 18b through which water (and steam) flows are alternately stacked. Yes. In the evaporator 20, the refrigerant passage 18a causes the refrigerant to flow from the upper side to the lower side in the vertical direction, and the water passage 18b causes the water to flow from the lower side to the upper side in the vertical direction. By exchanging heat, water evaporates and steam is generated. The water supplied from the lower pipe 24 is water (liquid phase) below the water level W2 in the evaporator 20, and is in a state where water and steam are mixed above the water level W2 (mixed phase). Then, it becomes steam (gas phase).
蒸発器２０は、その下端壁に下部配管２４が接続され、その上端壁に上部配管２２が接続されている。つまり、下部配管２４の接続口２０ａが水の入口となり、上部配管２２の接続口２０ｂが蒸気の出口となる。
The evaporator 20 has a lower pipe 24 connected to its lower end wall and an upper pipe 22 connected to its upper end wall. That is, the connection port 20a of the lower pipe 24 serves as an inlet for water, and the connection port 20b of the upper pipe 22 serves as an outlet for steam.
図２に示すように、蒸発器２０は、気液分離器１６よりも高さ方向で低位置に設置されている。具体的には、蒸気生成装置１０では、蒸発器２０での蒸気の出口である接続口２０ｂが、気液分離器１６内に貯留された水の水面（水位Ｗ１）よりも低位置となるように、蒸発器２０と気液分離器１６の高さ方向の位置関係が規定されている。これにより、蒸気生成装置１０では、気液分離器１６の水位Ｗ１と、蒸発器２０の水位Ｗ２との間に水位差（水面のヘッド差）Ｗが形成され、気液分離器１６内の水を蒸発器２０へと確実に循環させることができる。
As shown in FIG. 2, the evaporator 20 is installed at a lower position in the height direction than the gas-liquid separator 16. Specifically, in the steam generation device 10, the connection port 20 b that is the steam outlet in the evaporator 20 is positioned lower than the water level (water level W <b> 1) of water stored in the gas-liquid separator 16. In addition, the positional relationship in the height direction between the evaporator 20 and the gas-liquid separator 16 is defined. As a result, in the steam generation apparatus 10, a water level difference (water surface head difference) W is formed between the water level W 1 of the gas-liquid separator 16 and the water level W 2 of the evaporator 20, and the water in the gas-liquid separator 16 Can be reliably circulated to the evaporator 20.
コントローラ１５は、蒸気生成装置１０及びこれを備えた蒸気生成ヒートポンプ１２の全体的な制御を行なう制御装置である。コントローラ１５は、水位センサ３２からの検出値ＷＬと、後述する蒸発器２０での熱交換量（熱出力）とに基づき、水ポンプ２８の回転数を制御し、気液分離器１６内の水位Ｗ１を制御する。コントローラ１５は、水位Ｗ１が一定となるように制御しつつ、前記熱交換量が変動した場合にはその変動値に対応する水位Ｗ１となるように水ポンプ２８を制御する。コントローラ１５には、水位Ｗ１の制御パラメータとなるデータ（例えば、図３参照）を記憶した記憶部（図示せず）を設けられている。
The controller 15 is a control device that performs overall control of the steam generation device 10 and the steam generation heat pump 12 including the same. The controller 15 controls the rotational speed of the water pump 28 based on the detected value WL from the water level sensor 32 and the heat exchange amount (heat output) in the evaporator 20 described later, and the water level in the gas-liquid separator 16. W1 is controlled. The controller 15 controls the water pump 28 so that the water level W1 corresponds to the fluctuation value when the heat exchange amount fluctuates while controlling the water level W1 to be constant. The controller 15 is provided with a storage unit (not shown) that stores data (for example, see FIG. 3) that serves as a control parameter for the water level W1.
このような蒸気生成装置１０では、サーモサイフォン現象により、気液分離器１６内の水が下部配管２４を介して蒸発器２０に供給される。蒸発器２０に供給された水は、蒸発器２０の水通路１８ｂを流通する過程で、冷媒通路１８ａを流通する冷媒との熱交換によって加熱されて蒸発し、蒸気となる。そして、蒸発器２０で生成された蒸気は、上部配管２２を介して気液分離器１６に供給された後、蒸気中に含まれる水分が気液分離器１６内で分離され、蒸気送出配管３０から外部に送り出される。この際分離された水分は、気液分離器１６内に貯留され、再び下部配管２４から蒸発器２０へと供給される。
In such a steam generator 10, the water in the gas-liquid separator 16 is supplied to the evaporator 20 via the lower pipe 24 by the thermosiphon phenomenon. In the process of flowing through the water passage 18b of the evaporator 20, the water supplied to the evaporator 20 is heated and evaporated by heat exchange with the refrigerant flowing through the refrigerant passage 18a, and becomes vapor. Then, the steam generated in the evaporator 20 is supplied to the gas-liquid separator 16 via the upper pipe 22, and then water contained in the steam is separated in the gas-liquid separator 16, and the steam delivery pipe 30. Sent to the outside. The water separated at this time is stored in the gas-liquid separator 16 and supplied again from the lower pipe 24 to the evaporator 20.
次に、冷媒サイクル装置１４は、図１に示すように、圧縮機４０と、圧縮機４０の吐出側に接続される冷媒凝縮器４２と、冷媒凝縮器４２の出口側に接続される膨張弁４４と、膨張弁４４の出口側に接続される冷媒蒸発器４６とを有し、冷媒（冷媒）を循環させる冷凍サイクル（ヒートポンプ）である。圧縮機４０に吸入されて高温高圧となった冷媒は、冷媒凝縮器４２で放熱して凝縮した後、膨張弁４４で断熱膨張され、冷媒蒸発器４６で外部から吸熱して蒸発し、再び圧縮機４０へと戻る。このような冷媒サイクル装置１４としては、公知の冷凍回路を用いることができる。
Next, as shown in FIG. 1, the refrigerant cycle device 14 includes a compressor 40, a refrigerant condenser 42 connected to the discharge side of the compressor 40, and an expansion valve connected to the outlet side of the refrigerant condenser 42. 44 and a refrigerant evaporator 46 connected to the outlet side of the expansion valve 44, and a refrigeration cycle (heat pump) that circulates refrigerant (refrigerant). The refrigerant that has been sucked into the compressor 40 and has become high-temperature and high-pressure is radiated and condensed by the refrigerant condenser 42, is adiabatically expanded by the expansion valve 44, absorbs heat from the outside by the refrigerant evaporator 46, evaporates, and is compressed again. Return to machine 40. As such a refrigerant cycle device 14, a well-known refrigeration circuit can be used.
冷媒サイクル装置１４では、圧縮機４０から吐出された高温高圧の冷媒を凝縮する冷媒凝縮器４２が、蒸気生成装置１０の蒸発器２０として用いられる。つまり、圧縮機４０から吐出された高温高圧の冷媒は、冷媒凝縮器４２（蒸発器２０）に流通し、ここで蒸気生成装置１０を循環する水と熱交換することで水を加熱する一方、冷媒自身は冷却されて凝縮し、膨張弁４４へと送られる。このように、蒸気生成ヒートポンプ１２では、冷媒サイクル装置１４の冷媒凝縮器４２で発生する熱を蒸気生成装置１０での水の蒸発用の熱源として利用している。蒸気生成装置１０での水の蒸発用の熱源としては、冷媒サイクル装置１４以外のものを用いても勿論よい。
In the refrigerant cycle device 14, a refrigerant condenser 42 that condenses the high-temperature and high-pressure refrigerant discharged from the compressor 40 is used as the evaporator 20 of the vapor generation device 10. That is, the high-temperature and high-pressure refrigerant discharged from the compressor 40 circulates in the refrigerant condenser 42 (evaporator 20), where the water is heated by exchanging heat with the water circulating in the steam generation device 10, while The refrigerant itself is cooled and condensed, and sent to the expansion valve 44. Thus, in the steam generation heat pump 12, the heat generated in the refrigerant condenser 42 of the refrigerant cycle device 14 is used as a heat source for water evaporation in the steam generation device 10. Of course, a heat source other than the refrigerant cycle device 14 may be used as a heat source for water evaporation in the steam generation device 10.
次に、以上のように構成される蒸気生成装置１０の運転方法及びその作用効果について説明する。
Next, an operation method of the steam generating apparatus 10 configured as described above and its operation and effects will be described.
先ず、蒸発器２０内での水の状態は、上記したように、下方から上方に向かって順に、水（液相）、水と蒸気が混ざった状態（混合相）、蒸気（気相）による３層状態となっている。一般に、水は、液相の状態では伝熱性が悪いため熱交換効率が低くなり、混合相の状態で最も伝熱性が良好となり熱交換効率が高くなる。当該蒸気生成装置１０では、蒸発器２０内での混合相の割合を最適にするように蒸発器２０に流入する水の流量を制御することにより、蒸発器２０で生成される蒸気量と蒸発器２０へと循環供給される水の量とを一致させ、蒸発器２０での蒸気の生成効率を最大化する。
First, as described above, the state of water in the evaporator 20 depends on water (liquid phase), a state in which water and steam are mixed (mixed phase), and steam (gas phase) in order from the bottom to the top. It is in a three-layer state. In general, water has low heat transfer efficiency in the liquid phase state, so that the heat exchange efficiency is low, and in the mixed phase state, the heat transfer property is best and the heat exchange efficiency is high. In the steam generator 10, the amount of steam generated in the evaporator 20 and the evaporator are controlled by controlling the flow rate of water flowing into the evaporator 20 so as to optimize the ratio of the mixed phase in the evaporator 20. The amount of water circulated to 20 is matched to maximize the efficiency of steam generation in the evaporator 20.
例えば、蒸発器２０における冷媒と水との熱交換量（負荷）が小さい状態で蒸発器２０に供給される水の流量が大きくなると、蒸発器２０内での水（液相）の割合が増えて水位Ｗ２が上昇し、結果として発生する蒸気量が低下する。一方、蒸発器２０での冷媒と水との熱交換量が大きい状態で蒸発器２０に供給される水の流量が小さくなると、蒸発器２０内で水が全て蒸発してしまい、結果として発生する蒸気量が十分なものとならない。他方、蒸発器２０での冷媒と水との熱交換量が大きい状態であっても、蒸発器２０に供給される水の流量が過剰に大きくなると、全ての水が蒸気にならず混合相の状態のまま上部配管２２へと供給されてしまう。
For example, when the flow rate of water supplied to the evaporator 20 is increased in a state where the heat exchange amount (load) between the refrigerant and water in the evaporator 20 is small, the proportion of water (liquid phase) in the evaporator 20 increases. As a result, the water level W2 rises, resulting in a decrease in the amount of steam generated. On the other hand, if the flow rate of water supplied to the evaporator 20 is small in a state where the amount of heat exchange between the refrigerant and water in the evaporator 20 is large, all the water is evaporated in the evaporator 20 and is generated as a result. The amount of steam is not sufficient. On the other hand, even if the amount of heat exchange between the refrigerant and water in the evaporator 20 is large, if the flow rate of the water supplied to the evaporator 20 becomes excessively large, not all the water becomes steam and the mixed phase It will be supplied to the upper pipe 22 as it is.
そこで、蒸気生成装置１０では、上記したように、蒸発器２０の高さ位置を気液分離器１６よりも下方に配置し、水位差Ｗを形成している。これにより、水ポンプ２８の回転数を適宜制御して気液分離器１６への給水配管２６からの給水量を変化させ、気液分離器１６内の水位Ｗ１を変化させれば、水位差Ｗを利用して下部配管２４から蒸発器２０へと循環供給される水の流量を変更制御し、蒸発器２０での蒸気の生成効率を最大化することができる。
Therefore, in the steam generator 10, as described above, the height position of the evaporator 20 is disposed below the gas-liquid separator 16 to form the water level difference W. Thereby, if the rotation speed of the water pump 28 is appropriately controlled to change the amount of water supplied from the water supply pipe 26 to the gas-liquid separator 16 and change the water level W1 in the gas-liquid separator 16, the water level difference W Can be used to change and control the flow rate of the water circulated from the lower pipe 24 to the evaporator 20 to maximize the efficiency of steam generation in the evaporator 20.
この制御を行うため、コントローラ１５には、蒸発器２０での水と冷媒との間の熱交換量と、その熱交換量のときに蒸気の生成効率が最大となる水位Ｗ１（つまり、蒸発器２０への水の供給流量）との相関関係のデータを実験等によって取得し、予め記憶している。該データは、例えば、図３に示すような表データでよく、数式やグラフ等であってもよい。これにより、コントローラ１５は、現在の蒸発器２０での熱交換量に基づき、その熱交換量のときに蒸気の生成効率を最大とする水位Ｗ１のデータを呼び出し、この水位Ｗ１となるように水ポンプ２８の回転数を制御し、気液分離器１６への給水量を変化させる。
In order to perform this control, the controller 15 includes a heat exchange amount between water and the refrigerant in the evaporator 20 and a water level W1 at which the steam generation efficiency is maximized at the heat exchange amount (that is, the evaporator 15). Data of the correlation with the flow rate of water supplied to 20) is obtained through experiments or the like and stored in advance. The data may be, for example, tabular data as shown in FIG. Thereby, the controller 15 calls the data of the water level W1 that maximizes the steam generation efficiency at the heat exchange amount based on the current heat exchange amount in the evaporator 20, and the water level is set so that the water level W1 is reached. The rotational speed of the pump 28 is controlled to change the amount of water supplied to the gas-liquid separator 16.
熱交換量と水位Ｗ１との相関関係のデータは、より具体的には、熱交換量が増加した場合には、気液分離器１６内の水位Ｗ１を高くし、熱交換量が減少した場合には、気液分離器１６内の水位Ｗ１を低くするという内容である。換言すれば、熱交換量が所定値よりも増加した場合には、気液分離器１６内の水位Ｗ１を所定水位よりも高くし、熱交換量が所定値よりも減少した場合には、気液分離器１６内の水位Ｗ１を所定水位よりも低くするという内容であってもよい。
More specifically, the correlation data between the heat exchange amount and the water level W1 is obtained when the heat exchange amount increases, the water level W1 in the gas-liquid separator 16 increases, and the heat exchange amount decreases. The content is that the water level W1 in the gas-liquid separator 16 is lowered. In other words, when the heat exchange amount increases from a predetermined value, the water level W1 in the gas-liquid separator 16 is set higher than the predetermined water level, and when the heat exchange amount decreases from the predetermined value, The content of making the water level W1 in the liquid separator 16 lower than a predetermined water level may be sufficient.
蒸発器２０での熱交換量が増加した場合に、気液分離器１６内の水位Ｗ１を高くすることで、蒸発器２０への水の供給量を増やし、蒸発器２０内で混合相を適正量に維持しつつ蒸気の生成を促進して蒸気の生成効率及び生成量を最大化する。一方、蒸発器２０での熱交換量が減少した場合には、気液分離器１６内の水位Ｗ１を低くすることで、蒸発器２０への水の供給量を減らし、蒸発器２０に過剰に水が供給されることを防止し、混合相を適正量に維持しつつ蒸気の生成を促進して蒸気の生成効率及び生成量を最大化する。
When the heat exchange amount in the evaporator 20 increases, the water level W1 in the gas-liquid separator 16 is increased to increase the amount of water supplied to the evaporator 20 so that the mixed phase is properly adjusted in the evaporator 20. While maintaining the amount, the generation of steam is promoted to maximize the efficiency and amount of steam generation. On the other hand, when the amount of heat exchange in the evaporator 20 decreases, the water level W1 in the gas-liquid separator 16 is lowered to reduce the amount of water supplied to the evaporator 20 and excessively increase the evaporator 20. Water is prevented from being supplied, and steam generation is promoted while maintaining a proper amount of the mixed phase to maximize steam generation efficiency and generation amount.
水位Ｗ１の制御の指標となる蒸発器２０での水と冷媒との間の熱交換量の具体的なパラメータとしては、例えば、蒸発器２０への冷媒からの入力熱量Ｑが用いられる。冷媒からの入力熱量Ｑが得られれば、この入力熱量Ｑにおける蒸発器２０への最適な水の供給流量が決まるため、この供給流量が得られる水位Ｗ１となるように水ポンプ２８を制御することになる。なお、入力熱量Ｑは、例えば、冷媒サイクル装置１４の圧縮機４０での吸入圧力Ｐと吸入温度Ｔと回転数ｒｐｍとを測定することにより（図１参照）、当該圧縮機４０の排除容積は既知のため、コントローラ１５で蒸発器２０への冷媒循環量を演算でき、この冷媒循環量から推定することができる。
As a specific parameter of the amount of heat exchange between the water and the refrigerant in the evaporator 20 serving as an index for controlling the water level W1, for example, an input heat quantity Q from the refrigerant to the evaporator 20 is used. If the input heat quantity Q from the refrigerant is obtained, the optimum water supply flow rate to the evaporator 20 at this input heat quantity Q is determined, so the water pump 28 is controlled so that the water level W1 at which this supply flow rate is obtained. become. The input heat quantity Q is determined, for example, by measuring the suction pressure P, the suction temperature T, and the rotation speed rpm at the compressor 40 of the refrigerant cycle device 14 (see FIG. 1). Since it is known, the controller 15 can calculate the refrigerant circulation amount to the evaporator 20 and can estimate it from the refrigerant circulation amount.
コントローラ１５に記憶される入力熱量Ｑと水位Ｗ１との相関関係のデータは、例えば、図３に示すように、入力熱量Ｑが３０ｋＷの場合は、水位Ｗ１を３段階で最も高いレベル３とし、入力熱量Ｑが２０ｋＷの場合は、水位Ｗ１を３段階で中間のレベル２とし、１５ｋＷの場合は、水位Ｗ１を３段階で最も低いレベル１とする、といった内容である。水位Ｗ１のレベル１～３とは、例えば、気液分離器１６の高さを１００％とした場合に、レベル３は３７％、レベル２は２４％、レベル１は１０％というように設定される。コントローラ１５は、この相関関係のデータに基づき、そのときの入力熱量Ｑに応じて、気液分離器１６内の水位Ｗ１が所望のレベル１～３となるように水ポンプ２８の回転数を制御することになる。
The data of the correlation between the input heat quantity Q and the water level W1 stored in the controller 15 is, for example, as shown in FIG. 3, when the input heat quantity Q is 30 kW, the water level W1 is set to the highest level 3 in three stages, When the input heat quantity Q is 20 kW, the water level W1 is set to an intermediate level 2 in three stages, and when it is 15 kW, the water level W1 is set to the lowest level 1 in three stages. Levels 1 to 3 of the water level W1 are set to 37% for level 3, 24% for level 2, and 10% for level 1 when the height of the gas-liquid separator 16 is 100%, for example. The Based on the correlation data, the controller 15 controls the rotational speed of the water pump 28 so that the water level W1 in the gas-liquid separator 16 becomes a desired level 1 to 3 according to the input heat quantity Q at that time. Will do.
なお、水位Ｗ１の制御の指標となる蒸発器２０での水と冷媒との間の熱交換量の具体的なパラメータとしては、入力熱量Ｑに代えて、蒸気送出配管３０から送り出される蒸気の流量Ｆを用いてもよい。流量Ｆは、例えば、蒸気送出配管３０に流量計（ＦＣ）３４を設置することにより測定できる（図２中の２点鎖線で示す流量計３４参照）。
In addition, as a specific parameter of the heat exchange amount between the water and the refrigerant in the evaporator 20 serving as an index for controlling the water level W1, instead of the input heat quantity Q, the flow rate of the steam sent out from the steam delivery pipe 30 F may be used. The flow rate F can be measured, for example, by installing a flow meter (FC) 34 in the steam delivery pipe 30 (see the flow meter 34 indicated by a two-dot chain line in FIG. 2).
蒸気送出配管３０から送り出される蒸気の流量Ｆが得られれば、この流量Ｆと蒸発器２０に循環供給される水の流量とを一致させるように、気液分離器１６内の水位Ｗ１を制御すればよい。この場合、コントローラ１５は、流量Ｆと水位Ｗ１との相関関係のデータに基づき、蒸気の流量Ｆが増加した場合には、水位Ｗ１を上げる制御を行って循環する水の量を増やす一方、蒸気の流量Ｆが減少した場合には、水位Ｗ１を下げる制御を行い、蒸発器２０に過剰に水が供給されることを防止し、混合相を適正量に維持する制御を行う。
If the flow rate F of the steam sent out from the steam delivery pipe 30 is obtained, the water level W1 in the gas-liquid separator 16 is controlled so that the flow rate F and the flow rate of the water circulated and supplied to the evaporator 20 are matched. That's fine. In this case, when the flow rate F of the steam increases based on the correlation data between the flow rate F and the water level W1, the controller 15 performs control to increase the water level W1 to increase the amount of water that is circulated. When the flow rate F decreases, control is performed to lower the water level W1, to prevent excessive water from being supplied to the evaporator 20, and to maintain the mixed phase at an appropriate amount.
以上のように、本実施形態に係る蒸気生成装置１０及び蒸気生成ヒートポンプ１２では、蒸発器２０での蒸気の出口となる接続口２０ｂが、気液分離器１６内に貯留された水の水面となる水位Ｗ１よりも低位置となるように、蒸発器２０と気液分離器１６の高さ方向の位置関係を規定している。
As described above, in the steam generation device 10 and the steam generation heat pump 12 according to the present embodiment, the connection port 20b serving as the steam outlet in the evaporator 20 has the water surface stored in the gas-liquid separator 16 and the water surface. The positional relationship in the height direction between the evaporator 20 and the gas-liquid separator 16 is defined so as to be lower than the water level W1.
このように、蒸発器２０と気液分離器１６との間に高低差を設けたことにより、気液分離器１６内の水位Ｗ１を変化させるだけで、気液分離器１６から蒸発器２０へと下部配管２４を介して循環供給される水の流量を変化させることができる。これにより、蒸発器２０での負荷（熱交換量）が変化した場合にも、蒸発器２０での熱交換効率を最適に制御して蒸気の生成効率を向上させ、生成される蒸気量も増加することができ、さらに蒸発器２０の小型化も可能となる。しかも、蒸気生成装置１０では、上記した従来技術のように蒸発器２０への水の流量を変化させる循環ポンプも不要であるため、装置を小型で簡素な構成とすることができ、コストも低減できる。
Thus, by providing a height difference between the evaporator 20 and the gas-liquid separator 16, the gas-liquid separator 16 can be changed to the evaporator 20 only by changing the water level W <b> 1 in the gas-liquid separator 16. And the flow rate of the water circulated through the lower pipe 24 can be changed. As a result, even when the load (heat exchange amount) in the evaporator 20 changes, the heat exchange efficiency in the evaporator 20 is optimally controlled to improve the steam generation efficiency, and the amount of steam generated is also increased. In addition, the evaporator 20 can be downsized. Moreover, since the steam generation apparatus 10 does not require a circulation pump for changing the flow rate of water to the evaporator 20 as in the above-described prior art, the apparatus can be made small and simple, and the cost can be reduced. it can.
なお、本発明は、上記した実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲で自由に変更できることは勿論である。
It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.
１０ 蒸気生成装置
１２ 蒸気生成ヒートポンプ
１４ 冷媒サイクル装置
１５ コントローラ
２０ 蒸発器
２２ 上部配管
２４ 下部配管
２６ 給水配管
２８ 水ポンプ
３０ 蒸気送出配管
３２ 水位センサ
３４ 流量計
４０ 圧縮機
４２ 冷媒凝縮器
４４ 膨張弁
４６ 冷媒蒸発器 DESCRIPTION OFSYMBOLS 10 Steam generation apparatus 12 Steam generation heat pump 14 Refrigerant cycle apparatus 15 Controller 20 Evaporator 22 Upper piping 24 Lower piping 26 Water supply piping 28 Water pump 30 Steam delivery piping 32 Water level sensor 34 Flow meter 40 Compressor 42 Refrigerant condenser 44 Expansion valve 46 Refrigerant evaporator
１２ 蒸気生成ヒートポンプ
１４ 冷媒サイクル装置
１５ コントローラ
２０ 蒸発器
２２ 上部配管
２４ 下部配管
２６ 給水配管
２８ 水ポンプ
３０ 蒸気送出配管
３２ 水位センサ
３４ 流量計
４０ 圧縮機
４２ 冷媒凝縮器
４４ 膨張弁
４６ 冷媒蒸発器 DESCRIPTION OF
Claims (5)
- 水を貯留する気液分離器と、冷媒が流通する蒸発器とを備え、前記気液分離器と前記蒸発器の上部及び下部をそれぞれ上部配管と下部配管で連通することにより、気液分離器内の水を前記下部配管を介して蒸発器に供給すると共に前記冷媒との熱交換によって蒸発させ、該蒸発器で生成した蒸気を前記上部配管を介して気液分離器に供給すると共に、該気液分離器から送り出すサーモサイフォン回路を形成した蒸気生成装置であって、
前記蒸発器での蒸気の出口が、前記気液分離器内に貯留された水の水面よりも低位置となるように、前記蒸発器と前記気液分離器の高さ方向の位置関係を規定したことを特徴とする蒸気生成装置。 A gas-liquid separator comprising a gas-liquid separator for storing water and an evaporator through which a refrigerant circulates, and an upper pipe and a lower pipe communicating with the gas-liquid separator and the upper and lower parts, respectively. The water inside is supplied to the evaporator through the lower pipe and evaporated by heat exchange with the refrigerant, and the vapor generated by the evaporator is supplied to the gas-liquid separator through the upper pipe, and A steam generator that forms a thermosiphon circuit that is sent out from a gas-liquid separator,
The positional relationship in the height direction of the evaporator and the gas-liquid separator is defined so that the outlet of the vapor in the evaporator is positioned lower than the water level of the water stored in the gas-liquid separator. A steam generator characterized by the above. - 請求項１記載の蒸気生成装置において、
前記下部配管又は前記気液分離器には、内部に水を供給するための給水配管が接続されており、
前記蒸発器での水と冷媒との間の熱交換量に基づき、前記給水配管からの給水量を変化させ、前記気液分離器内の水位を制御することを特徴とする蒸気生成装置。 The steam generator according to claim 1, wherein
A water supply pipe for supplying water to the inside is connected to the lower pipe or the gas-liquid separator,
A steam generating device characterized in that, based on a heat exchange amount between water and refrigerant in the evaporator, a water supply amount from the water supply pipe is changed to control a water level in the gas-liquid separator. - 請求項２記載の蒸気生成装置において、
前記熱交換量として、前記蒸発器への前記冷媒からの入力熱量を用いることを特徴とする蒸気生成装置。 The steam generator according to claim 2, wherein
The steam generation apparatus characterized by using an amount of heat input from the refrigerant to the evaporator as the amount of heat exchange. - 請求項２記載の蒸気生成装置において、
前記熱交換量として、前記気液分離器から送り出される蒸気の流量を用いることを特徴とする蒸気生成装置。 The steam generator according to claim 2, wherein
The steam generation apparatus characterized by using a flow rate of steam sent out from the gas-liquid separator as the heat exchange amount. - 水を貯留する気液分離器と、冷媒が流通する蒸発器とを有し、前記気液分離器と前記蒸発器の上部及び下部をそれぞれ上部配管と下部配管で連通することにより、気液分離器内の水を前記下部配管を介して蒸発器に供給すると共に前記冷媒との熱交換によって蒸発させ、該蒸発器で生成した蒸気を前記上部配管を介して気液分離器に供給すると共に、該気液分離器から送り出すサーモサイフォン回路を形成した蒸気生成装置と、
圧縮機と、該圧縮機の吐出側に接続される冷媒凝縮器と、該冷媒凝縮器の出口側に接続される膨張弁と、該膨張弁の出口側に接続される冷媒蒸発器とを有し、前記冷媒を循環させる冷媒サイクル装置と、
を備えた蒸気生成ヒートポンプであって、
前記蒸発器として前記冷媒サイクル装置の冷媒凝縮器を用い、
前記蒸発器での蒸気の出口が、前記気液分離器内に貯留された水の水面よりも低位置となるように、前記蒸発器と前記気液分離器の高さ方向の位置関係を規定したことを特徴とする蒸気生成ヒートポンプ。 A gas-liquid separator that stores water and an evaporator through which a refrigerant flows, and the upper and lower parts of the gas-liquid separator and the evaporator communicate with each other by an upper pipe and a lower pipe, respectively. While supplying water in the vessel to the evaporator through the lower pipe and evaporating by heat exchange with the refrigerant, supplying the vapor generated in the evaporator to the gas-liquid separator through the upper pipe, A steam generator that forms a thermosiphon circuit that is fed from the gas-liquid separator;
A compressor, a refrigerant condenser connected to the discharge side of the compressor, an expansion valve connected to the outlet side of the refrigerant condenser, and a refrigerant evaporator connected to the outlet side of the expansion valve. And a refrigerant cycle device for circulating the refrigerant;
A steam generating heat pump comprising:
Using the refrigerant condenser of the refrigerant cycle device as the evaporator,
The positional relationship in the height direction of the evaporator and the gas-liquid separator is defined so that the outlet of the vapor in the evaporator is positioned lower than the water level of the water stored in the gas-liquid separator. A steam generation heat pump characterized by that.
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