JPS5878055A - Heater for air-conditioning - 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] This invention relates to a heating device for heating and cooling.

It is well known that in a conventional heat pump type air-conditioning device, the capacity of the heat bonder decreases as the outside temperature drops during heating operation, and that this device alone cannot sufficiently heat the room during severe cold weather. To take advantage of this, various methods have been developed in which a heater is incorporated into the device and the heater is used to assist the heating performance, but there is a risk of fire. Other methods include heating the refrigerant with a heater and burning kerosene as an auxiliary heat source for the heat exchanger on the heat source side, but these methods have the disadvantage of requiring a large amount of power consumption and kerosene fuel.

Therefore, an object of the present invention is to provide a heating device for heating and cooling that can safely and economically enhance the heating effect.

An embodiment of this invention is shown in the drawings. In other words, this air-conditioning heating device uses the endothermic or exothermic action of metal hydrides to heat the outdoor heat exchanger, and uses compressor heat, low-pressure suction refrigerant, and air as the cooling heat source. We are using. In the figure, 1 is a normal refrigeration cycle, and 2.3d is a metal container in which 4 metal hydrides and 5 metal hydrides having different characteristics are sealed. The metal container 2 is disposed in contact with the lower part of the compressor 6, has a heat exchanger Vigua for utilizing the heat of the low-pressure suction refrigerant buried therein, and is branched from the refrigeration cycle 1. In addition, 3 metal containers have 8 fins on the outer periphery.
is formed and arranged on the windward side of the outdoor heat exchanger 9.

10 is a valve interposed in the middle of the hydrogen pipe 11 that communicates with the metal container 2.3. 12 is an outdoor fan that sends air to exchange heat with the metal container 3. Reference numerals 13 and 14 designate electromagnetic valves that selectively switch the refrigerant flow path between the heat exchange bi-def and the suction side of the compressor 6. 15 is an indoor heat exchanger and an indoor blower 16
This is used to heat the room. 17.18 is a check valve, 19.20 is a cow-yabifuri chain, 21 is a four-way air-conditioning/heating switching valve, and 22 is a cow tamure! It is.

Next, the operation of this heating and cooling device will be explained.

First, the refrigeration cycle action during heating is basically the same as the conventional cycle cycle, in which the compressor 6 is operated in conjunction with the operation of the indoor unit (no number), and the indoor heat exchanger 15 is the condenser. The outdoor III heat exchanger 9 operates as an evaporator. During heating, the metal hydride 4 in the metal container 2 is heated by the heat of the compressor 6, and high-pressure hydrogen gas is released and enters the metal container 3 through the hydrogen pipe 11 and valve 1O, and its It is stored in the metal hydride 5 inside. At this time, the heat absorption generated in the container 3 is heat-exchanged by the outdoor side blower 12 via the fins 8 and becomes warm air, which heats the outdoor side heat exchanger 9 and acts as an auxiliary heat source. In this way, the heating effect during heating operation is improved. Next, metal container 2.
When the internal pressure of 3 is balanced and the movement of hydrogen gas stops,
Close the valve lO, close the solenoid valve 13, and close the solenoid valve 14.
is opened to switch the refrigerant flow path, and the low-pressure suction refrigerant flows through the heat exchange bidef, and the metal hydride 4 in the metal container 2 is cooled by the refrigerant heat. As a result, the pressure inside the metal container 2° decreases. On the other hand, the metal hydride 5 in the metal container 3 is heated by heat exchange with outside air via the fins 8 by the outdoor fan 12. At this time, when the valve 1G is opened again, the hydrogen gas in the metal hydride 6 is released due to the pressure difference, enters the metal container 2, and is exposed to 1 kIR in the metal hydride 4 therein. Since the generated Wk;11 heat is constantly cooled by the low-pressure suction refrigerant, the movement of hydrogen due to the pressure difference,
There is no problem in heating the compressor 6. In this way, the heat exchange operation for 1t cycle of the metal container 2.3 is completed, but as a modified example, the metal hydride 5 is heated by the heat of the compressor 6.
When the stored heat is used, the valve 100 is turned on and off or the hydrogen flow rate is controlled, and when the metal hydride 4 is cooled by the low-pressure suction refrigerant, if hydrogen is transferred instantaneously, it can be used as a continuous auxiliary heat source for heating. Of course, it is also possible to open the valve 10 and use it only when necessary, such as when the outdoor heat exchanger 9 is frosted, rather than as a constant heating auxiliary heat source.

As described above, the heating device for heating and cooling of the present invention utilizes compressor heat, low-pressure suction refrigerant, and air of the heating and cooling device.
By heating and cooling the metal hydride, the metal hydride absorbs and releases hydrogen, and the resulting heat exchange is utilized for heating, making it possible to safely and economically enhance the heating effect. effective. If the outdoor heat exchanger is heated with a metal container in the dormitory, the air-cooled pump will be more efficient in winter.

[Brief explanation of the drawing]

The drawing is a system diagram of a heating and cooling device to which an embodiment of the present invention is applied. l... Refrigeration cycle, 2.3... Metal container, 4.5
...Metal hydride, 6...Compressor, 7...Heat exchange pipe, 8...Fin, 9...Outdoor heat exchanger, 1
0-...Valve, 11...Hydrogen pipe, 12...Outdoor side blower, 13, 14-...Solenoid valve ζ15...Indoor side heat exchanger, 16...Tora side blower

Claims (1)

[Claims] (1) A refrigeration cycle including an indoor heat exchanger, an outdoor heat exchanger, and a compressor, and the compressor of this refrigeration cycle is heated by the heat generated and releases hydrogen gas, which is then connected to the compressor via a control valve. The first heat transfer container is connected to a metal hydride-filled heat transfer container disposed for heat exchange in the low-pressure suction pipe of the first heat transfer container via a pressure control valve, and is heated by storing hydrogen gas therein. A heating device for heating and cooling, comprising: a second heat transfer container filled with a metal hydride, which releases hydrogen gas into the first heat transfer container using outside air heat when the first heat transfer container is cooled. (Smell) The first heat transfer container is disposed in contact with the lower part of the compressor and has a low pressure suction pipe buried therein, and
The heating device for heating and cooling according to claim 1, wherein the heat transfer container has a fan formed on its outer periphery and is disposed upwind of the outdoor heat exchanger to heat the outdoor heat exchanger.