JPH0216959U

JPH0216959U -

Info

Publication number: JPH0216959U
Application number: JP9568888U
Authority: JP
Priority date: 1988-07-21
Filing date: 1988-07-21
Publication date: 1990-02-02

Description

[Brief explanation of the drawing]

第１図は本考案によるヒートポンプ式空調機の
一実施例を示す構成図、第２図は従来のヒートポ
ンプ式空調機の構成図、第３図は本考案に係る冷
房運転時の動作説明図、第４図は本考案に係る暖
房運転時の動作説明図、第５図は本考案に係る給
湯予熱兼冷房運転時の動作説明図、第６図は本考
案に係る給湯予熱運転時の動作説明図、第７図は
本考案に係る厳寒期暖房運転時の動作説明図であ
る。図中、１……圧縮機、２……アキユムレータ、
３……空気熱交換器、４……熱源水側熱交換器（
水熱交換器）、５……給湯用予熱熱交換器（給湯
熱交換器）、７……キヤピラリチユーブ（第１の
膨張手段）、８……第１の電磁（開閉）弁、９，
１２，１３，３１，３３……逆止弁、１０……膨
張弁（第２の膨張手段）、１１……第２の電磁（
開閉）弁、３０……第１の四方弁、３２……第２
の四方弁、３４……キヤピラリチユーブ（第３の
膨張手段）、３５……第３の電磁（開閉）弁。 FIG. 1 is a configuration diagram showing an embodiment of a heat pump type air conditioner according to the present invention, FIG. 2 is a configuration diagram of a conventional heat pump type air conditioner, and FIG. 3 is an explanatory diagram of the operation during cooling operation according to the present invention. Fig. 4 is an explanatory diagram of operations during heating operation according to the present invention, Fig. 5 is an explanatory diagram of operations during hot water supply preheating and cooling operation according to the present invention, and Fig. 6 is an explanatory diagram of operations during hot water supply preheating operation according to the present invention. 7 are explanatory diagrams of the operation of the present invention during a heating operation during a severe cold season. In the figure, 1...compressor, 2...accumulator,
3... Air heat exchanger, 4... Heat source water side heat exchanger (
water heat exchanger), 5... preheating heat exchanger for hot water supply (hot water heat exchanger), 7... capillary tube (first expansion means), 8... first electromagnetic (opening/closing) valve, 9,
12, 13, 31, 33... Check valve, 10... Expansion valve (second expansion means), 11... Second electromagnetic (
opening/closing) valve, 30...first four-way valve, 32...second
four-way valve, 34... capillary tube (third expansion means), 35... third electromagnetic (opening/closing) valve.

Claims

[Claims for Utility Model Registration] A compressor, an air heat exchanger, a heat source water side heat exchanger, a hot water supply preheating heat exchanger, and one end of the air heat exchanger and the heat source water side heat exchanger. A heat pump air conditioner comprising first and second expansion means connected to each other, and first and second on-off valves connected between the first expansion means and the second expansion means, a third expansion means and a third on-off valve connected between one end of the preheating heat exchanger for hot water supply and a connection midpoint of the first and second on-off valves, and a first refrigerant flow port connected to the a first four-way valve connected to the refrigerant discharge side of the compressor, a second refrigerant flow port connected to the refrigerant suction side of the compressor, and a fourth refrigerant flow port connected to the other end of the heat source water side heat exchanger. The first refrigerant flow port is connected to the third refrigerant flow port of the first four-way valve, and the second refrigerant flow port is connected to the refrigerant suction side of the compressor and the second refrigerant flow port of the first four-way valve. At the connection midpoint of the refrigerant flow ports, a third refrigerant flow port is connected to the other end of the air heat exchanger, and a fourth refrigerant flow port is connected to the other end of the hot water preheating heat exchanger. A heat pump air conditioner characterized by being equipped with a four-way valve.