JP3272149B2 - Refrigerant heating type heater - Google Patents
Refrigerant heating type heaterInfo
- Publication number
- JP3272149B2 JP3272149B2 JP11893294A JP11893294A JP3272149B2 JP 3272149 B2 JP3272149 B2 JP 3272149B2 JP 11893294 A JP11893294 A JP 11893294A JP 11893294 A JP11893294 A JP 11893294A JP 3272149 B2 JP3272149 B2 JP 3272149B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- liquid
- heater
- gas
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Central Heating Systems (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷媒加熱型暖房機に関
し、特に蒸発潜熱を利用して暖房や加熱を行う冷媒加熱
型暖房機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant heating type heater, and more particularly to a refrigerant heating type heater which performs heating and heating using latent heat of evaporation.
【０００２】[0002]
【従来の技術】従来の冷媒加熱型暖房機では、冷媒ポン
プの作用で冷媒液を加熱器に導入し、この加熱器で燃焼
熱等により、直接加熱して蒸発させる。2. Description of the Related Art In a conventional refrigerant heating type heater, a refrigerant liquid is introduced into a heater by the operation of a refrigerant pump, and is directly heated and evaporated by combustion heat or the like in the heater.
【０００３】蒸発した冷媒は、室内機等の熱交換器内で
凝縮し、蒸発潜熱として暖房又は加熱を行う。[0003] The evaporated refrigerant is condensed in a heat exchanger such as an indoor unit and heats or heats as latent heat of evaporation.
【０００４】この種の冷媒加熱型暖房機では、暖房負荷
に見合った蒸発潜熱を有する冷媒を流す必要がある。も
し、部屋が寒くて暖房を強めにする必要がある場合に、
冷媒の循環量が多すぎて、冷媒液と冷媒蒸気の２相流で
室内機に導入されることがある。逆に、部屋をさほど暖
房する必要がない場合には、冷媒の循環量が少なくて、
加熱器の冷媒が過熱されて冷媒劣化の原因になる。冷媒
の劣化は、加熱器における冷媒の過熱により生じ、冷媒
が分解してしまう。In this type of refrigerant heating type heater, it is necessary to flow a refrigerant having latent heat of evaporation corresponding to a heating load. If the room is cold and you need more heating,
The circulation amount of the refrigerant is too large, and the refrigerant may be introduced into the indoor unit in a two-phase flow of the refrigerant liquid and the refrigerant vapor. Conversely, if the room does not need to be heated much, the amount of refrigerant circulated is small,
The refrigerant in the heater is overheated and causes deterioration of the refrigerant. The deterioration of the refrigerant is caused by overheating of the refrigerant in the heater, and the refrigerant is decomposed.
【０００５】このように従来では、暖房負荷に丁度見合
った冷媒の循環量や加熱量を同時に設定して最適に制御
するのは難しいという問題がある。As described above, in the related art, there is a problem that it is difficult to optimally control by simultaneously setting the circulation amount and the heating amount of the refrigerant just corresponding to the heating load.
【０００６】[0006]
【発明が解決しようとする課題】本発明は上記課題を解
決するためになされたものであり、暖房用の熱交換器に
所定量の冷媒蒸気のみを確実に導入する一方、加熱器に
おいては冷媒の過熱を防ぐことができる冷媒加熱型暖房
機を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to surely introduce only a predetermined amount of refrigerant vapor into a heat exchanger for heating, while providing a refrigerant in a heater. It is an object of the present invention to provide a refrigerant heating type heater capable of preventing overheating of the heater.
【０００７】[0007]
【課題を解決するための手段】そこで、第１の発明は、
冷媒を冷媒ポンプにより加熱器に送りだして冷媒を加熱
器により加熱して、蒸発潜熱を利用して暖房用の熱交換
器で暖房する冷媒加熱型暖房機において、前記暖房用の
熱交換器をバイパスする冷媒のバイパス回路と、冷媒の
加熱器内または冷媒の加熱器の出口側に配置されて冷媒
液と冷媒蒸気を分離する気液分離器と、この気液分離器
の冷媒液の量に応じて冷媒液をバイパス回路を介して冷
媒ポンプの吸い込み側に導く冷媒制御手段とを備えるも
のである。Accordingly, a first aspect of the present invention provides
In a refrigerant heating type heater in which a refrigerant is sent out to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of evaporation is used to heat the heater with a heating heat exchanger, the heating heat exchanger is bypassed. A refrigerant bypass circuit, a gas-liquid separator arranged in the refrigerant heater or at the outlet side of the refrigerant heater to separate refrigerant liquid and refrigerant vapor, and according to the amount of refrigerant liquid in the gas-liquid separator. Refrigerant control means for guiding the refrigerant liquid to the suction side of the refrigerant pump via a bypass circuit.
【０００８】また、第２の発明では、冷媒を冷媒ポンプ
により加熱器に送りだして冷媒を加熱器により加熱し
て、蒸発潜熱を利用して暖房用の熱交換器で暖房する冷
媒加熱型暖房機において、暖房用の熱交換器をバイパス
する冷媒のバイパス回路と、前記冷媒の加熱器内または
冷媒の加熱器の出口側に配置されて冷媒液と冷媒蒸気を
分離する気液分離器と、この気液分離器の冷媒液の量に
応じて冷媒液をバイパス回路を介して冷媒ポンプの吸い
込み側に導くための冷媒制御手段とを備え、前記冷媒制
御手段は、気液分離器の冷媒液の量に応じて移動する液
面センサと、この液面センサの移動に応じて開閉して、
前記気液分離器内の冷媒液をバイパス回路に導く開閉弁
機構とを備える。Further, in the second invention, a refrigerant heating type heating machine in which a refrigerant is sent to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of vaporization is used to heat the refrigerant with a heat exchanger for heating. A refrigerant bypass circuit that bypasses a heat exchanger for heating, a gas-liquid separator that is disposed in the refrigerant heater or on the outlet side of the refrigerant heater and separates refrigerant liquid and refrigerant vapor, Refrigerant control means for guiding the refrigerant liquid to the suction side of the refrigerant pump via a bypass circuit in accordance with the amount of the refrigerant liquid in the gas-liquid separator, the refrigerant control means comprising: A liquid level sensor that moves according to the amount, and opens and closes according to the movement of the liquid level sensor,
An on-off valve mechanism for guiding the refrigerant liquid in the gas-liquid separator to a bypass circuit.
【０００９】第３の発明は、冷媒を冷媒ポンプにより加
熱器に送りだして冷媒を加熱器により加熱して、蒸発潜
熱を利用して暖房用の熱交換器で暖房する冷媒加熱型暖
房機において、冷媒ポンプの吐出側とを連絡する連絡通
路と、この連絡通路に設けられた開閉弁と、冷媒の加熱
器内または冷媒の加熱器の出口側に配置されて冷媒液と
冷媒蒸気を分離する気液分離器と、この気液分離器の冷
媒液の量に応じて前記開閉弁を開いて冷媒液の一部を冷
媒ポンプの吐出側から吸入側へ戻す冷媒制御手段とを備
えるものである。A third aspect of the present invention is a refrigerant heating type heater in which a refrigerant is sent to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of vaporization is used to heat the refrigerant by a heat exchanger for heating. A communication passage communicating with the discharge side of the refrigerant pump, an on-off valve provided in the communication passage, and a gas that is arranged in the refrigerant heater or at the outlet side of the refrigerant heater to separate refrigerant liquid and refrigerant vapor. A liquid separator; and a refrigerant control unit that opens the on-off valve according to the amount of the refrigerant liquid in the gas-liquid separator and returns a part of the refrigerant liquid from the discharge side to the suction side of the refrigerant pump.
【００１０】[0010]
【作用】第１の発明では、冷媒を冷媒ポンプにより加熱
器に送りだして冷媒を加熱器により加熱して、蒸発潜熱
を利用して暖房用の熱交換器で暖房する際に、気液分離
器により冷媒液と冷媒蒸気を分離して、気液分離器の冷
媒液の量に応じて冷媒液をバイパス回路を介して冷媒ポ
ンプの吸い込み側に導いて、冷媒液が暖房用の熱交換器
をバイパスするようにする。これにより、暖房用の熱交
換器に所定量の冷媒蒸気のみを確実に導入し、加熱器で
の冷媒過熱を防ぐ。According to the first aspect of the invention, when the refrigerant is sent to the heater by the refrigerant pump, the refrigerant is heated by the heater, and the latent heat of evaporation is used for heating by the heat exchanger for heating, the gas-liquid separator is used. The refrigerant liquid is separated from the refrigerant vapor by the refrigerant liquid is guided to the suction side of the refrigerant pump via the bypass circuit according to the amount of the refrigerant liquid in the gas-liquid separator, and the refrigerant liquid passes through the heat exchanger for heating. Try to bypass. This ensures that only a predetermined amount of refrigerant vapor is introduced into the heat exchanger for heating, thereby preventing overheating of the refrigerant in the heater.
【００１１】また、第２の発明では、冷媒制御手段の液
面センサは、気液分離器の冷媒液の量に応じて移動し
て、この液面センサの移動に応じて開閉弁を開閉して、
気液分離器内の冷媒液をバイパス回路に導く。これによ
り、暖房用の熱交換器に所定量の冷媒蒸気のみを確実に
導入し、加熱器での冷媒過熱を防ぐ。In the second invention, the liquid level sensor of the refrigerant control means moves in accordance with the amount of the refrigerant liquid in the gas-liquid separator, and opens and closes the on-off valve in accordance with the movement of the liquid level sensor. hand,
The refrigerant liquid in the gas-liquid separator is led to a bypass circuit. This ensures that only a predetermined amount of refrigerant vapor is introduced into the heat exchanger for heating, thereby preventing overheating of the refrigerant in the heater.
【００１２】さらに、第３の発明は、冷媒を冷媒ポンプ
により加熱器に送りだして冷媒を加熱器により加熱し
て、蒸発潜熱を利用して暖房用の熱交換器で暖房する際
に、気液分離器により冷媒液と冷媒蒸気を分離して、気
液分離器の冷媒液の量に応じて連絡通路の開閉弁を開い
て液の一部を冷媒ポンプの吐出側から吸入側へ戻す。こ
れにより、暖房用の熱交換器に所定量の冷媒蒸気のみを
確実に導入しつつ、加熱器での冷媒過熱を防ぐことが可
能である。Further, a third invention provides a method for heating a refrigerant by a heater using a refrigerant pump, heating the refrigerant by the heater, and utilizing a latent heat of vaporization to heat the refrigerant by a heat exchanger for heating. The refrigerant liquid and the refrigerant vapor are separated by the separator, and the opening and closing valve of the communication passage is opened according to the amount of the refrigerant liquid in the gas-liquid separator, and a part of the liquid is returned from the discharge side of the refrigerant pump to the suction side. This makes it possible to prevent refrigerant overheating in the heater while reliably introducing only a predetermined amount of refrigerant vapor into the heat exchanger for heating.
【００１３】[0013]
【実施例】以下、本発明の実施例を添付図面に基づいて
詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１４】図１は、本発明にかかる冷媒加熱型暖房機
の第１実施例を示している。図２は、図１の気液分離器
の拡大図である。FIG. 1 shows a first embodiment of a refrigerant heating type heater according to the present invention. FIG. 2 is an enlarged view of the gas-liquid separator of FIG.
【００１５】冷媒液を圧送して循環する冷媒ポンプ１の
吐き出し側は、加熱器２に接続されている。この冷媒ポ
ンプ１から圧送された冷媒液は加熱器２を通り、冷媒液
はバーナである燃焼装置３の燃焼熱により加熱されて、
冷媒蒸気と冷媒液になる。The discharge side of a refrigerant pump 1 for circulating the refrigerant liquid by pressure is connected to a heater 2. The refrigerant liquid pumped from the refrigerant pump 1 passes through the heater 2, and the refrigerant liquid is heated by the combustion heat of the combustion device 3 as a burner.
It becomes refrigerant vapor and refrigerant liquid.
【００１６】気液分離器４は加熱器２の出口側に接続さ
れていて、図２に示すようにこの気液分離器４により冷
媒蒸気と冷媒液Ｍに分離されるようになっている。The gas-liquid separator 4 is connected to the outlet side of the heater 2, and is separated into refrigerant vapor and refrigerant liquid M by the gas-liquid separator 4, as shown in FIG.
【００１７】図２に示すように、気液分離器４内には、
液面センサーであるフロート５と、このフロート５によ
り開閉操作される開閉弁機構６とからなる冷媒制御手段
を有している。このフロート５は好ましくは球体であ
り、フロート５には開閉弁機構６の開閉弁６ａが一体に
取り付けられている。As shown in FIG. 2, in the gas-liquid separator 4,
It has a refrigerant control means including a float 5 which is a liquid level sensor and an opening / closing valve mechanism 6 which is opened / closed by the float 5. The float 5 is preferably a sphere, and the float 5 is integrally provided with an on-off valve 6a of an on-off valve mechanism 6.
【００１８】気液分離器４内に収容された冷媒液Ｍの液
面の位置ＭＬに応じて、開閉弁機構６の開口部材６ｂは
この開閉弁機構６の開閉弁６ａにより開閉できるように
なっている。The opening member 6b of the on-off valve mechanism 6 can be opened and closed by the on-off valve 6a of the on-off valve mechanism 6 according to the position ML of the liquid level of the refrigerant liquid M contained in the gas-liquid separator 4. ing.
【００１９】図２に示すように、開口部材６ｂはバイパ
ス回路９の一端に接続されていて、図１のようにバイパ
ス回路９の他端は冷媒ポンプ１の吸い込み側に接続され
ている。As shown in FIG. 2, the opening member 6b is connected to one end of the bypass circuit 9, and the other end of the bypass circuit 9 is connected to the suction side of the refrigerant pump 1 as shown in FIG.
【００２０】気液分離器４は、室内熱交換器（暖房用の
熱交換器）７を介して冷媒ポンプ１の吸い込み側に接続
されている。この室内熱交換器７は、ファン８を備えて
いる。The gas-liquid separator 4 is connected to the suction side of the refrigerant pump 1 via an indoor heat exchanger (heat exchanger for heating) 7. This indoor heat exchanger 7 includes a fan 8.
【００２１】次に、図１と図２を参照して、上述した実
施例の動作を説明する。Next, the operation of the above-described embodiment will be described with reference to FIGS.
【００２２】暖房（加熱）負荷に応じて、燃焼装置３の
燃料の燃焼量と、冷媒ポンプ１の冷媒循環量を制御す
る。冷媒循環量は所要値よりも多めに設定してある。The amount of fuel burned by the combustion device 3 and the amount of refrigerant circulated by the refrigerant pump 1 are controlled in accordance with the heating (heating) load. The refrigerant circulation amount is set to be larger than a required value.
【００２３】冷媒ポンプ１で冷媒液を加熱器２に導入
し、この加熱器２の冷媒は、燃焼装置３の燃焼熱により
加熱されて蒸発する。The refrigerant liquid is introduced into the heater 2 by the refrigerant pump 1, and the refrigerant in the heater 2 is heated by the combustion heat of the combustion device 3 and evaporates.
【００２４】加熱器２の出口側の気液分離器４内には、
図２に示すように、冷媒蒸気と冷媒液Ｍが送られる。こ
の気液分離器４内で冷媒蒸気と冷媒液Ｍが分離される。
気液分離器４内の冷媒液Ｍの量が多くなり、冷媒液Ｍの
液面が上昇した場合には、フロート５が上昇して開閉弁
６ａが開口部材６ｂから離れて開閉弁機構６は閉状態か
ら開状態になる。In the gas-liquid separator 4 on the outlet side of the heater 2,
As shown in FIG. 2, refrigerant vapor and refrigerant liquid M are sent. The refrigerant vapor and the refrigerant liquid M are separated in the gas-liquid separator 4.
When the amount of the refrigerant liquid M in the gas-liquid separator 4 increases and the liquid level of the refrigerant liquid M rises, the float 5 rises and the on-off valve 6a moves away from the opening member 6b, and the on-off valve mechanism 6 The state changes from the closed state to the open state.
【００２５】これにより、冷媒液Ｍは、バイパス回路９
により室内熱交換器７をバイパスして、冷媒ポンプ１の
吸い込み側に戻る。Thus, the refrigerant liquid M is supplied to the bypass circuit 9
As a result, the refrigerant returns to the suction side of the refrigerant pump 1 by bypassing the indoor heat exchanger 7.
【００２６】一方、気液分離器４内の冷媒蒸気のみが、
室内熱交換器７へ送られるので、流動抵抗を最小にし
て、冷媒蒸気の流動自体も安定なものとなる。On the other hand, only the refrigerant vapor in the gas-liquid separator 4 is
Since the refrigerant is sent to the indoor heat exchanger 7, the flow resistance of the refrigerant vapor is minimized, and the flow of the refrigerant vapor itself becomes stable.
【００２７】また、加熱器２には常に冷媒液Ｍが十分に
流れるために、冷媒の過熱がなくなり、空焚きを防ぎ、
冷媒劣化などを未然に防止することができ、機器内の高
圧化するのを防止することができる。したがって、機器
の耐久性が増す。Further, since the refrigerant liquid M always flows sufficiently through the heater 2, the refrigerant is not overheated, so that it is possible to prevent empty heating.
It is possible to prevent the deterioration of the refrigerant and the like, and to prevent the internal pressure of the device from becoming high. Therefore, the durability of the device is increased.
【００２８】このように、冷媒の蒸発潜熱を利用して暖
房（加熱）を行う際に、暖房用（加熱用）の熱交換器に
所定量の冷媒蒸気のみを確実に導入し、しかも加熱器で
の冷媒過熱を避けることができる。つまり、加熱器出口
側に気液分離器を持ち、この気液分離器内に液面センサ
ーと開閉弁機構を有し、暖房（加熱）用熱交換器に冷媒
蒸気のみを導入し、冷媒液の過剰分を冷媒ポンプの吸い
込み側へバイパスする回路を用いている。As described above, when heating (heating) using the latent heat of evaporation of the refrigerant, only a predetermined amount of refrigerant vapor is surely introduced into the heating (heating) heat exchanger, and Refrigerant overheating can be avoided. That is, a gas-liquid separator is provided on the outlet side of the heater, a liquid level sensor and an opening / closing valve mechanism are provided in the gas-liquid separator, and only the refrigerant vapor is introduced into the heating (heating) heat exchanger. A circuit is used to bypass the excess amount to the suction side of the refrigerant pump.
【００２９】次に、本発明にかかる冷媒加熱型暖房機の
第２実施例を説明する。図３は、本発明にかかる冷媒加
熱型暖房機の第２実施例を示している。Next, a description will be given of a second embodiment of the refrigerant heating type heater according to the present invention. FIG. 3 shows a second embodiment of the refrigerant heating type heater according to the present invention.
【００３０】冷媒液を圧送して循環する冷媒ポンプ１の
吐き出し側は、加熱器２に接続されている。この冷媒ポ
ンプ１から圧送された冷媒液は加熱器２を通り、冷媒液
はバーナである燃焼装置３により加熱されて、冷媒蒸気
と冷媒液になる。The discharge side of the refrigerant pump 1 for circulating the refrigerant liquid by pressure is connected to the heater 2. The refrigerant liquid pumped from the refrigerant pump 1 passes through the heater 2, and the refrigerant liquid is heated by a combustion device 3 as a burner to become refrigerant vapor and refrigerant liquid.
【００３１】気液分離器４は加熱器２の出口側に接続さ
れていて、図３に示すようにこの気液分離器４により冷
媒蒸気と冷媒液Ｍに分離されるようになっている。The gas-liquid separator 4 is connected to the outlet side of the heater 2 and is separated into refrigerant vapor and refrigerant liquid M by the gas-liquid separator 4 as shown in FIG.
【００３２】図３に示すように、気液分離器４はバイパ
ス回路９の一端に接続されていて、バイパス回路９の他
端は冷媒ポンプ１の吸い込み側に接続されている。As shown in FIG. 3, the gas-liquid separator 4 is connected to one end of a bypass circuit 9, and the other end of the bypass circuit 9 is connected to the suction side of the refrigerant pump 1.
【００３３】図３に示すように、気液分離器４内には、
フロート１１を有している。フロート１１は好ましくは
球体である。As shown in FIG. 3, in the gas-liquid separator 4,
It has a float 11. Float 11 is preferably spherical.
【００３４】気液分離器４内に収容された冷媒液Ｍの液
面ＭＬが上昇してフロート１１が上昇すると、フロート
スイッチ（図示せず）がオンとなり、バイパス回路９中
の電磁弁１０を開として、気液分離器４内の冷媒液をバ
イパス回路９を介して冷媒ポンプ１の吸い込み側に送る
ことができる。この実施例ではフロート１１及びフロー
トスイッチと、電磁弁１０とで冷媒制御手段を構成して
いる。When the liquid level ML of the refrigerant liquid M contained in the gas-liquid separator 4 rises and the float 11 rises, a float switch (not shown) is turned on, and the solenoid valve 10 in the bypass circuit 9 is turned on. When opened, the refrigerant liquid in the gas-liquid separator 4 can be sent to the suction side of the refrigerant pump 1 via the bypass circuit 9. In this embodiment, the refrigerant control means is constituted by the float 11 and the float switch, and the solenoid valve 10.
【００３５】気液分離器４は、室内熱交換器７を介して
冷媒ポンプ１の吸い込み側に接続されている。この室内
熱交換器７は、ファン８を備えている。The gas-liquid separator 4 is connected to the suction side of the refrigerant pump 1 via the indoor heat exchanger 7. This indoor heat exchanger 7 includes a fan 8.
【００３６】次に、図３を参照して、上述した第２実施
例の動作を説明する。Next, the operation of the above-described second embodiment will be described with reference to FIG.
【００３７】暖房（加熱）負荷に応じて、燃焼装置３の
燃料の燃焼量と、冷媒ポンプ１の冷媒循環量を制御す
る。冷媒循環量は所要値よりも多めに設定してある。The amount of fuel burned by the combustion device 3 and the amount of refrigerant circulated by the refrigerant pump 1 are controlled in accordance with the heating (heating) load. The refrigerant circulation amount is set to be larger than a required value.
【００３８】冷媒ポンプ１で冷媒液を加熱器２に導入
し、この加熱器２の冷媒液は、燃焼装置３の燃焼熱によ
り加熱されて蒸発する。The refrigerant liquid is introduced into the heater 2 by the refrigerant pump 1, and the refrigerant liquid in the heater 2 is heated by the combustion heat of the combustion device 3 and evaporates.
【００３９】加熱器２の出口側の気液分離器４内には、
図３に示すように、冷媒蒸気と冷媒液が送られる。この
気液分離器４内で冷媒蒸気と冷媒液が分離される。気液
分離器４内の冷媒液Ｍの量が多くなり、冷媒液Ｍの液面
が上昇した場合には、フロート１１が上昇してスロート
スイッチがオンとなり、電磁弁１０が開く。In the gas-liquid separator 4 on the outlet side of the heater 2,
As shown in FIG. 3, refrigerant vapor and refrigerant liquid are sent. In the gas-liquid separator 4, the refrigerant vapor and the refrigerant liquid are separated. When the amount of the refrigerant liquid M in the gas-liquid separator 4 increases and the liquid level of the refrigerant liquid M rises, the float 11 rises, the throat switch is turned on, and the solenoid valve 10 opens.
【００４０】これにより、冷媒液は、バイパス回路９に
より室内熱交換器７をバイパスして、冷媒ポンプ１の吸
い込み側に戻る。なお、フロート１１が下降すると、電
磁弁１０が閉じ、冷媒液のバイパスは止まる。Thus, the refrigerant liquid bypasses the indoor heat exchanger 7 by the bypass circuit 9 and returns to the suction side of the refrigerant pump 1. When the float 11 descends, the electromagnetic valve 10 closes and the bypass of the refrigerant liquid stops.
【００４１】一方、気液分離器４内の冷媒蒸気のみが、
室内熱交換器７へ送られ、流動抵抗を最小にして、冷媒
蒸気の流動自体も安定なものとなる。On the other hand, only the refrigerant vapor in the gas-liquid separator 4 is
The flow of the refrigerant vapor to the indoor heat exchanger 7 is minimized, and the flow of the refrigerant vapor itself becomes stable.
【００４２】また、加熱器２には常に冷媒液Ｍが十分に
流れるために、冷媒の過熱がなくなり、空焚きを防ぎ、
冷媒劣化などを未然に防止することができ、機器内の高
圧化するのを防止することができる。したがって、機器
の耐久性が増す。Further, since the refrigerant liquid M always sufficiently flows through the heater 2, the refrigerant is not overheated, and the empty heating is prevented.
It is possible to prevent the deterioration of the refrigerant and the like, and to prevent the internal pressure of the device from becoming high. Therefore, the durability of the device is increased.
【００４３】次に、本発明にかかる冷媒加熱型暖房機の
第３実施例を説明する。図４は、本発明にかかる冷媒加
熱型暖房機の第３実施例を示している。Next, a third embodiment of the refrigerant heating type heater according to the present invention will be described. FIG. 4 shows a third embodiment of the refrigerant heating type heater according to the present invention.
【００４４】冷媒液を圧送して循環する冷媒ポンプ１の
吐き出し側は、加熱器２に接続されている。この冷媒ポ
ンプ１から圧送された冷媒液は加熱器２を通り、冷媒液
はバーナである燃焼装置３により加熱されて、冷媒蒸気
と冷媒液になる。The discharge side of the refrigerant pump 1 for circulating the refrigerant liquid by pressure is connected to the heater 2. The refrigerant liquid pumped from the refrigerant pump 1 passes through the heater 2, and the refrigerant liquid is heated by a combustion device 3 as a burner to become refrigerant vapor and refrigerant liquid.
【００４５】気液分離器４は加熱器２の出口側に接続さ
れていて、図４に示すように、この気液分離器４により
冷媒蒸気と冷媒液に分離されるようになっている。The gas-liquid separator 4 is connected to the outlet side of the heater 2, and is separated into refrigerant vapor and refrigerant liquid by the gas-liquid separator 4, as shown in FIG.
【００４６】図４に示すように、気液分離器４内には、
フロート１１を有している。このフロート１１は好まし
くは球体である。As shown in FIG. 4, the gas-liquid separator 4 includes:
It has a float 11. This float 11 is preferably spherical.
【００４７】気液分離器４は、室内熱交換器７を介して
冷媒ポンプ１の吸い込み側に接続されている。この室内
熱交換器７は、ファン８を備えている。The gas-liquid separator 4 is connected to the suction side of the refrigerant pump 1 via the indoor heat exchanger 7. This indoor heat exchanger 7 includes a fan 8.
【００４８】冷媒ポンプ１の前後（吸い込み側と吐き出
し側）に冷媒ポンプ１とは並列に連絡通路１９が接続さ
れていて、その連絡通路１９の途中には電磁弁１０が設
けられている。A communication passage 19 is connected before and after the refrigerant pump 1 (suction side and discharge side) in parallel with the refrigerant pump 1, and an electromagnetic valve 10 is provided in the communication passage 19.
【００４９】気液分離器４内に収容された冷媒液Ｍの液
面ＭＬが上昇すると、連絡通路１９中の電磁弁１０が開
き、冷媒液を連絡通路１９に通すことができる。この実
施例ではフロート１１及び後述のフロートスイッチと、
電磁弁１０とで冷媒制御手段を構成している。When the liquid level ML of the refrigerant liquid M contained in the gas-liquid separator 4 rises, the solenoid valve 10 in the communication passage 19 opens, and the refrigerant liquid can be passed through the communication passage 19. In this embodiment, a float 11 and a float switch described later,
The solenoid valve 10 constitutes a refrigerant control unit.
【００５０】次に、図４を参照して、上述した第３実施
例の動作を説明する。Next, the operation of the third embodiment will be described with reference to FIG.
【００５１】暖房（加熱）負荷に応じて、燃焼装置３の
燃料の燃焼量と、冷媒ポンプ１の冷媒循環量を制御す
る。冷媒循環量は所要値よりも多めに設定してある。The amount of fuel burned by the combustion device 3 and the amount of refrigerant circulated by the refrigerant pump 1 are controlled in accordance with the heating (heating) load. The refrigerant circulation amount is set to be larger than a required value.
【００５２】冷媒ポンプ１で冷媒液を加熱器２に導入
し、この加熱器２の冷媒は、燃焼装置３の燃焼熱により
加熱されて蒸発する。The refrigerant liquid is introduced into the heater 2 by the refrigerant pump 1, and the refrigerant in the heater 2 is heated by the combustion heat of the combustion device 3 and evaporates.
【００５３】加熱器２の出口側の気液分離器４内には、
図４に示すように、冷媒蒸気と冷媒液が送られる。この
気液分離器４内で冷媒蒸気と冷媒液が分離される。気液
分離器４内の冷媒液Ｍの量が多くなり、冷媒液Ｍの液面
ＭＬが上昇した場合には、フロート１１が上昇して、フ
ロートスイッチ（図示せず）がオンとなり、電磁弁１０
が開になる。In the gas-liquid separator 4 on the outlet side of the heater 2,
As shown in FIG. 4, refrigerant vapor and refrigerant liquid are sent. In the gas-liquid separator 4, the refrigerant vapor and the refrigerant liquid are separated. When the amount of the refrigerant liquid M in the gas-liquid separator 4 increases and the liquid level ML of the refrigerant liquid M rises, the float 11 rises, a float switch (not shown) turns on, and the electromagnetic valve 10
Is open.
【００５４】これにより、冷媒ポンプ１から吐出された
冷媒液は、連絡通路１９により冷媒ポンプ１の吸入側に
戻る。なお、フロートスイッチ１１が下降すると、電磁
弁１０が閉になり連絡通路１９による冷媒液の戻りがな
くなる。As a result, the refrigerant liquid discharged from the refrigerant pump 1 returns to the suction side of the refrigerant pump 1 through the communication passage 19. When the float switch 11 is lowered, the solenoid valve 10 is closed, and the return of the refrigerant liquid by the communication passage 19 is stopped.
【００５５】このようにすることで、室内熱交換器７内
に冷媒液が溜まって、サイクル全体の冷媒液が少なくな
ってしまうことがなくなり、しかも気液分離器４内の冷
媒蒸気のみが、室内熱交換器７へ送られ、流動抵抗を最
小にして、冷媒蒸気の流動自体も安定なものとなる。By doing so, the refrigerant liquid does not accumulate in the indoor heat exchanger 7 and the refrigerant liquid in the entire cycle does not decrease, and only the refrigerant vapor in the gas-liquid separator 4 is removed. The flow of the refrigerant vapor to the indoor heat exchanger 7 is minimized, and the flow of the refrigerant vapor itself becomes stable.
【００５６】そして、気液分離器４内の冷媒液Ｍの量が
多くなった時に、冷媒ポンプ１から吐出された冷媒液の
一部を冷媒ポンプ１の吸込側に戻すことにより、冷媒ポ
ンプ１の能力が減り、サイクル全体の冷媒循環量の制御
をすることができる。When the amount of the refrigerant liquid M in the gas-liquid separator 4 increases, a part of the refrigerant liquid discharged from the refrigerant pump 1 is returned to the suction side of the refrigerant pump 1 so that the refrigerant pump 1 And the amount of refrigerant circulating in the entire cycle can be controlled.
【００５７】一方、気液分離器４内の冷媒液Ｍの量が減
ると、電磁弁１０を閉めて連絡通路１９を閉じると冷媒
ポンプ１から加熱器２への冷媒供給量が増える。この実
施例ではフロート１１及びスロートスイッチと、電磁弁
とで冷媒制御手段を構成している。On the other hand, when the amount of the refrigerant liquid M in the gas-liquid separator 4 decreases, when the solenoid valve 10 is closed and the communication passage 19 is closed, the supply amount of the refrigerant from the refrigerant pump 1 to the heater 2 increases. In this embodiment, the refrigerant control means is constituted by the float 11, the throat switch, and the solenoid valve.
【００５８】加熱器２には必要量の冷媒液が供給される
ために、冷媒の加熱がなくなり、空焚きを防ぎ、冷媒劣
化などを未然に防止することができ、機器内の高圧化す
るのを防止することができる。したがって、機器の耐久
性が増す。Since the required amount of the refrigerant liquid is supplied to the heater 2, the refrigerant is not heated, so that it is possible to prevent empty heating, prevent deterioration of the refrigerant, etc., and increase the pressure inside the equipment. Can be prevented. Therefore, the durability of the device is increased.
【００５９】ところで、本発明は上記実施例に限定され
ず、特許請求の範囲を逸脱しない範囲で種々の変更をす
ることができる。Incidentally, the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the scope of the claims.
【００６０】例えば、図１の第１実施例、図３の第２実
施例、そして図４の第３実施例における気液分離器は、
加熱器内にあってもよい。For example, the gas-liquid separator in the first embodiment of FIG. 1, the second embodiment of FIG. 3, and the third embodiment of FIG.
It may be in the heater.
【００６１】[0061]
【発明の効果】以上述べたように、第１の発明によれ
ば、気液分離器により冷媒液と冷媒蒸気を分離して、気
液分離器の冷媒液の量に応じて冷媒液をバイパス回路を
介して冷媒ポンプの吸い込み側に導いて、冷媒液が暖房
用の熱交換器をバイパスするようにする。これにより、
暖房用の熱交換器に所定量の冷媒蒸気のみを確実に導入
し、難しい冷媒の流量制御と加熱制御を行わなくても、
加熱器での冷媒過熱を防ぐことができる。したがって、
冷媒の劣化を防ぐことができる。As described above, according to the first aspect, the refrigerant liquid and the refrigerant vapor are separated by the gas-liquid separator, and the refrigerant liquid is bypassed according to the amount of the refrigerant liquid in the gas-liquid separator. The refrigerant liquid is led to the suction side of the refrigerant pump through a circuit so that the refrigerant liquid bypasses the heat exchanger for heating. This allows
It is possible to reliably introduce only a predetermined amount of refrigerant vapor into a heat exchanger for heating, and without performing difficult refrigerant flow control and heating control.
Overheating of the refrigerant in the heater can be prevented. Therefore,
The deterioration of the refrigerant can be prevented.
【００６２】また、第２の発明によれば、冷媒制御手段
の液面センサは、気液分離器の冷媒液の量に応じて移動
して、この液面センサの移動に応じて開閉弁を開閉し
て、気液分離器内の冷媒液をバイパス回路に導くことが
でき、簡単な構成で暖房用の熱交換器に所定量の冷媒蒸
気のみを確実に導入し、難しい冷媒の流量制御と加熱制
御を行わなくても、加熱器での冷媒過熱を防ぐことがで
きる。したがって、冷媒の劣化を防ぐことができる。According to the second aspect, the liquid level sensor of the refrigerant control means moves in accordance with the amount of the refrigerant liquid in the gas-liquid separator, and opens and closes the valve in accordance with the movement of the liquid level sensor. By opening and closing, the refrigerant liquid in the gas-liquid separator can be guided to the bypass circuit, and with a simple configuration, only a predetermined amount of refrigerant vapor is reliably introduced into the heat exchanger for heating. Even without performing the heating control, it is possible to prevent the refrigerant from overheating in the heater. Therefore, deterioration of the refrigerant can be prevented.
【００６３】さらに、第３の発明によれば、気液分離器
により冷媒液と冷媒蒸気を分離して、気液分離器の冷媒
液の量に応じて連絡通路の開閉弁を開いて冷媒を液の一
部を冷媒ポンプの吐出側から吸入側へ戻す。これによ
り、暖房用の熱交換器に所定量の冷媒蒸気のみを確実に
導入しつつ、加熱器での冷媒過熱を防ぐことができる。
したがって、冷媒の劣化を防ぐことができる。Further, according to the third aspect of the present invention, the refrigerant liquid and the refrigerant vapor are separated by the gas-liquid separator, and the refrigerant is opened by opening the on-off valve of the communication passage according to the amount of the refrigerant liquid in the gas-liquid separator. A part of the liquid is returned from the discharge side of the refrigerant pump to the suction side. Thereby, it is possible to prevent the refrigerant from overheating in the heater while reliably introducing only a predetermined amount of the refrigerant vapor into the heat exchanger for heating.
Therefore, deterioration of the refrigerant can be prevented.
【図１】本発明の冷媒加熱型暖房機の第１実施例を示す
図である。FIG. 1 is a view showing a first embodiment of a refrigerant heating type heater according to the present invention.
【図２】図１の第１実施例の気液分離器を示す図であ
る。FIG. 2 is a view showing a gas-liquid separator according to the first embodiment of FIG. 1;
【図３】本発明の冷媒加熱型暖房機の第２実施例を示す
図である。FIG. 3 is a view showing a second embodiment of the refrigerant heating type heater according to the present invention.
【図４】本発明の冷媒加熱型暖房機の第３実施例を示す
図である。FIG. 4 is a view showing a third embodiment of the refrigerant heating type heater according to the present invention.
１ 冷媒ポンプ ２ 加熱器 ４ 気液分離器 ６ 開閉弁 ７ 室内熱交換器（暖房用の熱交換器） ９ バイパス回路 １９ 連絡通路 DESCRIPTION OF SYMBOLS 1 Refrigerant pump 2 Heater 4 Gas-liquid separator 6 On-off valve 7 Indoor heat exchanger (Heat exchanger for heating) 9 Bypass circuit 19 Communication passage
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F24D 7/00 F25B 1/00 321 F25B 49/02 520 F25B 9/00 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) F24D 7/00 F25B 1/00 321 F25B 49/02 520 F25B 9/00
Claims (3)
して冷媒を加熱器により加熱して、蒸発潜熱を利用して
暖房用の熱交換器で暖房する冷媒加熱型暖房機におい
て、 前記暖房用の熱交換器をバイパスする冷媒のバイパス回
路と、 冷媒の加熱器内または冷媒の加熱器の出口側に配置され
て冷媒液と冷媒蒸気を分離する気液分離器と、この気液
分離器の冷媒液の量に応じて冷媒液をバイパス回路を介
して冷媒ポンプの吸い込み側に導く冷媒制御手段と、を
備えることを特徴とする冷媒加熱型暖房機。1. A refrigerant heating type heater in which a refrigerant is sent to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of evaporation is used to heat the refrigerant with a heat exchanger for heating. A refrigerant bypass circuit that bypasses the heat exchanger; a gas-liquid separator that is disposed in the refrigerant heater or on the outlet side of the refrigerant heater to separate refrigerant liquid and refrigerant vapor; and a refrigerant of the gas-liquid separator. A refrigerant control means for guiding a refrigerant liquid to a suction side of a refrigerant pump via a bypass circuit in accordance with an amount of the liquid, and a refrigerant control means.
して冷媒を加熱器により加熱して、蒸発潜熱を利用して
暖房用の熱交換器で暖房する冷媒加熱型暖房機におい
て、 暖房用の熱交換器をバイパスする冷媒のバイパス回路
と、 前記冷媒の加熱器内または冷媒の加熱器の出口側に配置
されて冷媒液と冷媒蒸気を分離する気液分離器と、この
気液分離器の冷媒液の量に応じて冷媒液をバイパス回路
を介して冷媒ポンプの吸い込み側に導くための冷媒制御
手段とを備え、 前記冷媒制御手段は、気液分離器の冷媒液の量に応じて
移動する液面センサと、この液面センサの移動に応じて
開閉して、前記気液分離器内の冷媒液をバイパス回路に
導く開閉弁機構とを備えることを特徴とする冷媒加熱型
暖房機。2. A refrigerant heating type heater in which a refrigerant is sent out to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of evaporation is used to heat the refrigerant with a heat exchanger for heating. A refrigerant bypass circuit that bypasses the exchanger; a gas-liquid separator that is disposed in the refrigerant heater or on the outlet side of the refrigerant heater to separate refrigerant liquid and refrigerant vapor; and a refrigerant of the gas-liquid separator. Refrigerant control means for guiding the refrigerant liquid to the suction side of the refrigerant pump via a bypass circuit in accordance with the amount of liquid, the refrigerant control means moving in accordance with the amount of refrigerant liquid in the gas-liquid separator A refrigerant heating heater comprising: a liquid level sensor; and an opening / closing valve mechanism that opens and closes in response to movement of the liquid level sensor and guides the refrigerant liquid in the gas-liquid separator to a bypass circuit.
して冷媒を加熱器により加熱して、蒸発潜熱を利用して
暖房用の熱交換器で暖房する冷媒加熱型暖房機におい
て、 冷媒ポンプの吐出側とを連絡する連絡通路と、 この連絡通路に設けられた開閉弁と、 冷媒の加熱器内または冷媒の加熱器の出口側に配置され
て冷媒液と冷媒蒸気を分離する気液分離器と、この気液
分離器の冷媒液の量に応じて前記開閉弁を開いて冷媒液
の一部を冷媒ポンプの吐出側から吸入側へ戻す冷媒制御
手段と、を備える冷媒加熱型暖房機。3. A refrigerant heating type heater in which a refrigerant is sent to a heater by a refrigerant pump, the refrigerant is heated by the heater, and the latent heat of vaporization is used to heat the refrigerant by a heat exchanger for heating. A communication passage communicating with the refrigerant passage, an on-off valve provided in the communication passage, and a gas-liquid separator arranged in the refrigerant heater or on the outlet side of the refrigerant heater to separate refrigerant liquid and refrigerant vapor. And a refrigerant control unit that opens the on-off valve according to the amount of the refrigerant liquid in the gas-liquid separator and returns a part of the refrigerant liquid from the discharge side to the suction side of the refrigerant pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11893294A JP3272149B2 (en) | 1994-05-31 | 1994-05-31 | Refrigerant heating type heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11893294A JP3272149B2 (en) | 1994-05-31 | 1994-05-31 | Refrigerant heating type heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07324760A JPH07324760A (en) | 1995-12-12 |
| JP3272149B2 true JP3272149B2 (en) | 2002-04-08 |
Family
ID=14748790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11893294A Expired - Fee Related JP3272149B2 (en) | 1994-05-31 | 1994-05-31 | Refrigerant heating type heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272149B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017051531A1 (en) * | 2015-09-25 | 2017-03-30 | 日本電気株式会社 | Phase-change cooler and method for controlling same |
-
1994
- 1994-05-31 JP JP11893294A patent/JP3272149B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07324760A (en) | 1995-12-12 |
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