JPS5944561A - Heat pump hot-water supply machine utilizing supercooling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention seeks to provide a highly efficient heat pump water heater that utilizes supercooling and has a novel configuration.

Conventionally, in heat pump air conditioning systems that mainly use air as a heat source, it has not been possible to obtain a sufficient hot water supply effect when the outside temperature drops and the hot water supply capacity is insufficient. For this reason, it was not used in cold regions, or it was necessary to install a hot water heat exchanger to find another heat source, or to incorporate an electric heater to supply hot water, which was very uneconomical due to high maintenance and equipment costs. .

The present invention is intended to eliminate the above-mentioned drawbacks, and embodiments thereof will be described below with reference to the drawings.

A is the long-awaited supercooling heat pump water heater.

A KT11i supercooling heat exchanger is interposed between the decompression expansion mechanism and the condenser, and the supercooling heat is first heated by hot water make-up water as a heat source, then heated in the condenser, and high-temperature water is taken out and heated. Configured to increase capacity.

The great invention consists of a compressor 1, a four-way switching valve 2° water (Ill.
Heat exchanger 3. In a heat pump that forms a known heat pump cycle with an expansion valve 4 and an air-side heat exchanger 5, a subcooling heat exchanger 6 is interposed between the heat exchanger 3 and the expansion valve 4. The water is then passed through a supercooling heat exchanger 6, which has not been used in the past, to warm the hot water make-up water, and then the high-temperature water is taken out by the Narcissus heat exchanger 3. In this case, a -3.7kw heat pump was used. The lower the make-up water temperature, the more remarkable the effect. In the figure, 7 is a hot water storage tank (60℃) and 8 is a hot water supply tank. i is 100
The opening indicates the traveling direction of discharged gas at 15°C, and the opening indicates the traveling direction of liquefied gas at 15°C. The hot water supply water at 10 degrees Celsius is indicated by the arrow l.
・Proceed as indicated by arrow 2 in a state where the temperature of the water supply is -125°C.

The liquefied gas at 55°C moves as shown by the arrow E, and the condensed gas at 60°C moves as shown by the arrow.

The invention of the present invention can exhibit the functions and effects shown in the table below. It can be said to be a useful invention that can solve all problems with things.

[Brief explanation of drawings]

The drawings are from a book showing one embodiment of the great invention, so Figure 1 is a diagram of the overall configuration. 106. Compressor, 264. Four-way switching valve, 360. water i
lj\A exchanger, 410. Expansion valve, 5.1. Air side heat exchanger, 6. ,, Heat exchanger for supercooling.

Claims (1)

[Claims] An appropriate supercooling heat exchanger is interposed between the liquefied gas and the condenser to make the liquefied gas and hot water make-up water flow in opposite directions, so that the hot water make-up water is warmed and further heated by the condenser. A heat pump water heater that uses supercooling.