JPS5878056A - 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] Jin's invention relates to a heating device for air conditioning.

It is well known that the heating capacity of conventional heat pump type air-conditioning devices decreases as the outside electric temperature decreases during heating operation, and that this device alone cannot adequately heat the room during severe cold weather. For this reason, various methods have been developed in the past to incorporate a heater into the device and assist in the heating capacity of the device, but there is a risk of a fire occurring. Other methods include heating the refrigerant with a heater and burning kerosene as an auxiliary heat source for the outdoor heat exchanger, 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 improve heating capacity.
It is to provide.

An embodiment of this invention! ! 1lli. That is, this heating device for heating and cooling uses the exothermic action of metal hydrides, uses condensed refrigerant heat in the refrigeration cycle of the heating and cooling device and solar heat as its heat source, and uses air as its cooling source. In the figure, 1 is a normal refrigeration cycle, and 2 and 3 are metal containers, inside which a metal hydride 4 and a metal hydride 5 whose characteristics are black are each resistant.

Metal container! I2 is installed on the roof of a house as a solar heat collector. The metal container 3 has fins 6 formed on its outer periphery to form an outdoor heat exchanger 7. A heat exchange pipe 8 for utilizing the heat of the high-pressure condensed refrigerant is installed inside.

Reference numeral 9 denotes a valve interposed in the middle of the hydrogen pipe 10 that communicates with the metal container 2.3. Reference numeral 11 denotes an outdoor fan that sends air to exchange heat with the metal container 3. 12 is a four-way valve that switches the refrigerant flow path of the refrigeration cycle 1 to the heat exchange pipe 8. 13
1 is an indoor heat exchanger that heats the room using an indoor blower 14. 15 is a compressor, 16 is a switching four-way valve for heating and cooling, 17, 18 is a cabillary chain, 19 is a check valve, and 20 is an achiemulator.

Next, the operation of this embodiment will be explained. First, the refrigeration cycle during heating operation is basically the same as the existing cycle69, in which the compressor 16 is operated in conjunction with the operation of the indoor unit (no number).1. - The outdoor heat exchanger 7 performs an evaporator operation, and the indoor heat exchanger 13 performs a condenser operation. On the other hand, during this heating, the metal hydride 4 in the metal container 2 is heated by solar heat, and high-pressure hydrogen gas is released into the container 2 and passes through the bulk water pipe 1G and the valve 9 to the metal container 2.
and is occluded by the metal hydride 5.

At this time, the absorbed heat generated inside the metal container 3 is heat exchanged with the outside air via the fins 6 by the outdoor side blower 11 and becomes warm air, which becomes an auxiliary heat source for heating the outdoor side heat exchanger 7t during heating operation. Improve the heating effect. When the internal pressure of the metal container 2.3 is balanced and the movement of hydrogen gas is stopped, the refrigerant flow path is switched to the heat exchange pipe 8 side by the four-way valve 12, and the heat of the high-pressure condensed refrigerant passing through the heat exchange pipe 8 is transferred to the metal container. The metal hydride 5 in the container 3 is heated to release hydrogen gas and increase the pressure. Also at this time, the heat inside the metal container 3 is exchanged by the outdoor side blower 11 via the fins 6 and becomes warm air, which serves as an auxiliary heat source for the outside heat exchanger 7 and improves the heating effect during heating operation. can be done. On the other hand, the metal hydride 4 in the metal container z is naturally cooled by external electricity during the night, so the pressure in the Kadoma container 2 decreases, and the hydrogen gas in the metal container 3 is reduced by the pressure difference between the valve 9tll< and the metal container 2. By metal hydride 5 inside! It is released, enters the metal container 2, and is occluded in the metal hydride 4 therein. At this time, due to the endothermic action of the metal hydride 5, it is constantly heated in the heat exchange pipe 8, and since the friend metal hydride 40@heat is naturally radiated by the outside air, hydrogen gas moves due to the pressure difference. When the internal pressure of the metal container @2.3 is balanced, the movement of hydrogen gas stops, and in response, the four-way valve 12 cuts off the passage of the refrigerant to the heat exchange pipe 8. In this way, the metal container 2゜3
One cycle of is completed.

As a smart example, when utilizing the absorbed heat of the metal hydride 5 based on the heat generated by the sun, the valve 90 is turned on or the hydrogen flow rate is fully controlled, and when the metal hydride 4 is cooled by outside air, the hydrogen is transferred instantly. Then, solar heat can be effectively used as an auxiliary heat source for the outdoor heat exchanger 7. Of course, instead of always serving as an auxiliary heat source for the outdoor heat exchanger 7 as described above, the heat exchange can be used by controlling the valve 9 and the four-way valve 12 only when necessary, such as when the outside heat exchanger 70 is frosted. is possible.

As described above, the heating device for heating and cooling of the present invention absorbs and releases hydrogen gas from the metal hydride by heating and cooling the metal hydride using the condensed refrigerant heat of the refrigeration cycle of the heating and cooling device, solar heat, and air. Since heating is performed using the transfer of heat that occurs, the heating capacity can be safely and economically improved. As an embodiment, heating the external heat exchanger ii by heat generated from the metal hydride enclosure improves heating operation efficiency during severe cold in winter in an air-cooled system.

BRIEF DESCRIPTION OF THE DRAWINGS The drawing is a system diagram in which a one-shot embodiment of the present invention is applied to a heating and cooling device. 1... Refrigeration cycle, 2, 3-... Metal container, 4.
5... Metal hydride, 6... Fin, 7... Outdoor heat exchanger, 8... Heat exchange pipe, 9... Valve, lO
...Hydrogen piping, 11...Outdoor side blower, 12...
Four-way valve, 13... Children's side heat exchanger, 14... Indoor side blower

Claims (1)

[Claims] (1) A refrigeration psych V including a compressor, an ia outer heat exchanger, and a rich inner heat exchanger, and a metal hydride-filled OML heat transfer vessel that releases hydrogen gas using solar heat as a heating source;
The first heat transfer container is connected to the first heat transfer container to store and heat the released hydrogen gas, and return the hydrogen gas to the first heat transfer container using the heat of the high-pressure condensed refrigerant of the refrigeration cycle as a heating source. 20th heat transfer of metal hydride inclusion*
A heating device for air conditioning and heating equipped with S. (ii) The heat transfer vessel of the WI2 has a pipe on its outer periphery, and a condensed refrigerant passing heat exchange pipe tm connected to the refrigeration cycle via a switching valve is installed inside, and a heat exchange pipe tm is installed on the windward side of the outdoor heat exchanger. Claim No. (11311)
Heating device for heating and cooling on 1E.