JP2003314892A5

JP2003314892A5 -

Info

Publication number: JP2003314892A5
Application number: JP2002121696A
Authority: JP
Filing date: 2002-04-24
Publication date: 2005-09-22
Anticipated expiration: 2022-04-24

Claims

A compressor, a heat pump circuit in which a pipe of a water heat exchanger through which refrigerant from the compressor flows , a decompression device and an evaporator are connected by a refrigerant pipe, a hot water tank, a circulation pump for circulating water in the hot water tank, And a water circulation circuit configured by connecting a water heater constituted by a pipe of the water heat exchanger through which water circulated by the circulation pump flows , by a water pipe, a water supply pipe for supplying water to the hot water supply tank, and the hot water supply In a heat pump water heater having a hot water supply pipe for hot water supply from a tank,
The water supply pipe is branched and connected to the inlet side of the hot water tank and the inlet side of the water heater,
The hot water pipe is branched and connected to the outlet side of the hot water tank and the outlet side of the water heater,
A valve that switches between hot water supply from the hot water supply tank and hot water supply from the water heater, and when the flow rate from the hot water supply pipe to the hot water outlet is detected, the compressor is started to start operation of the heat pump circuit And a control device for controlling
The water heat exchanger has a spiral cylindrical shape in which a pipe through which water from the circulation pump flows and a pipe through which a refrigerant flows from the compressor are in thermal contact, and is installed so as to surround the hot water tank.
The control device supplies hot water from the hot water supply tank to the hot water supply pipe when starting the operation of the heat pump circuit, and supplies hot water sufficiently heated by the water heater to the hot water supply pipe. Control so that hot water is not supplied to the hot water supply pipe from
A heat pump water heater, wherein the heat pump circuit and the water circulation circuit are housed in one box.

2. The heat pump water heater according to claim 1, wherein a heat insulating material is interposed between the cylindrical water heat exchanger and the hot water tank .

The heat insulating material is interposed between the cylindrical water heat exchanger and the hot water tank in claim 1, and the periphery of the water heat exchanger and the hot water tank formed in a cylindrical shape are covered with a heat insulating material. A heat pump water heater characterized by that.

4. The water heating apparatus according to claim 1, further comprising a temperature sensor that detects an outlet side temperature of the water heater, and operating the valve based on a temperature detected by the temperature sensor to heat the water from the hot water supplied from the hot water supply tank. A heat pump water heater provided with a control device that controls to switch to hot water supply by a heater.

A compressor, a water heat exchanger pipe through which refrigerant from the compressor flows , a decompression device, and an evaporator connected by refrigerant piping; a hot water supply tank; and a first hot water tank for circulating water in the hot water tank A first water circulation circuit configured by connecting a water pump with a first water heater composed of a circulation pump and a pipe of the water heat exchanger through which water circulated by the first circulation pump flows ; A second water heater comprising a second circulation pump for circulating bath water, a pipe of the water heat exchanger through which the bath water circulated by the second circulation pump flows, and the second water A second water circulation circuit configured by connecting a return pipe for returning bath water from the heater to the bath with a water pipe, a water supply pipe for supplying water to the hot water supply tank, and a hot water supply pipe for supplying hot water from the hot water supply tank In heat pump water heaters,
The water supply pipe is branched and connected to the inlet side of the hot water tank and the inlet side of the first water heater,
The hot water pipe is branched and connected to the outlet side of the hot water tank and the outlet side of the first water heater,
A valve for switching between hot water supply from the hot water supply tank and hot water supply from the first water heater, and operation of the heat pump circuit by activating the compressor when a flow rate from the hot water supply pipe to the hot water outlet is detected And a control device for controlling to start
The water heat exchanger is a spiral in which the pipe through which the water of the first water heater flows, the pipe through which the water of the second water heater flows, and the pipe through which the refrigerant from the compressor flows are in thermal contact. Cylindrical shape,
The control device supplies hot water from the hot water supply tank to the hot water supply pipe when starting the operation of the heat pump circuit, and supplies hot water sufficiently heated by the water heater to the hot water supply pipe. Control so that hot water is not supplied to the hot water supply pipe from
A heat pump water heater, wherein the heat pump circuit, the first water circulation circuit, and the second water circulation circuit are housed in one box.