JP2009139072A - Hot water generating system using heat of condenser for air conditioner and refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To resolve problems wherein a coolant is cooled during heat exchange in the condenser for a conventional air conditioner or refrigerator, but due to this, air or cooling water is heated, and its heat is discharged to the atmosphere, or sufficient cooling effect of the coolant can not applied in the condenser particularly during outside air temperature rise of the summer season, causing increase of electric power demand due to its effect, and energy such as gas or petroleum is largely consumed in operation of a hot water and steam generator such as water heater or a boiler. <P>SOLUTION: Of water supply piping supplied to all places and buildings using air conditioners and refrigerators and using hot water generators such as a water heater or a boiler, water supply piping to the hot water generators such as a water heater or a boiler is not directly connected, heat exchange is carried out with all or one part of coolant piping from compressor discharge sides to outlets of the condensers of the air conditioners and refrigerators during cooling operation, and they are connected to water supply ports of the hot water and steam generators such as a water heater or a boiler after cooling a coolant and heating supply water. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention uses the heat of a condenser during cooling and cooling operations of an air conditioner and a refrigerator to produce hot water, which is used for hot water such as a water heater and a boiler, and water supply for a steam generator.

Conventional air conditioner and refrigerator condensers are air-cooled and water-cooled. In the case of air-cooled, the outdoor condenser is cooled by forced air-cooling using a fan in the outdoor condenser. . In the case of the water cooling type, cooling water is used to cool the refrigerant in the condenser, and the cooling water heated by heat exchange is cooled and circulated in a cooling tower. Also, hot water such as water heaters and boilers and water supply for steam generators were water.

In conventional air conditioner and refrigerator condensers, the refrigerant is cooled during heat exchange, which heats the air or cooling water and releases the heat to the atmosphere. In particular, when the outside air temperature rises in summer, the condenser cannot sufficiently cool the refrigerant, and this influence has caused an increase in power demand. On the other hand, hot water and steam generators such as water heaters and boilers consume a lot of energy such as gas and oil.

All locations where hot water generators such as water heaters and boilers are used using air conditioners and refrigerators, and water supply pipes to hot water generators such as water heaters and boilers are directly connected to buildings Heating water supply after cooling the refrigerant and heating the water supply by heat exchange with all or part of the refrigerant piping from the compressor discharge side of the air conditioner and refrigerator to the outlet of the condenser without cooling Connect to the water inlet of hot water and steam generators such as boilers and boilers.

It is possible to suppress the increase in power demand caused by cooling failure of cooling and cooling efficiency caused by poor cooling of the refrigerant in the condenser during cooling and cooling operations of air conditioners and refrigerators, especially when the outside air temperature rises in summer. become. On the other hand, hot water generators such as water heaters and boilers can be supplied with hot water that was able to use the heat obtained by the condenser, so that the amount of heat required to reach the operating temperature can be reduced, so that gas and oil Etc. can be reduced.

BEST MODE FOR CARRYING OUT THE INVENTION "

First, in the case of air-cooled type, it is necessary to improve the condenser (outdoor heat exchanger). For best results, the water supply pipe should be in close contact with the refrigerant pipe passing through the condenser. It seems that gas leakage due to rubbing of the pipe and water leakage can be prevented by brazing the copper pipe and the water supply pipe that have been exposed by removing some of the aluminum fins. In the case of the water-cooled type, heat was exchanged between the cooling water and the refrigerant in the condenser. It seems that it is possible to use and implement methods such as distributing the hot water produced to water heaters and boilers.

Industrial applicability

This invention requires modification of the air conditioner and refrigerator. It is also necessary to modify the water heater and boiler. Piping work to connect the water supply pipe from the supply side to the condenser of the air conditioner and the refrigerator, and the pipe from the condenser to the water heater and boiler, as well as various other work, will be required. If necessary, a tank for storing hot water, piping configuration and electric control to bring hot water to the operating temperature are required. Although costs such as materials are required, the utility costs can be reduced, and demands of refrigeration and air conditioning manufacturers, gas appliance manufacturers and construction contractors related to construction are expected to increase. In addition, we think that it is possible to reduce the amount of industrial waste because there is no need to remodel existing products. We believe that the use of air conditioners and refrigerators will reduce the electricity demand in summer and reduce the fuel consumption of water heaters and boilers. Since we can reduce the amount of heat released to the air in the summer, we believe that we can contribute to measures against the intense heat in recent years.

It is the figure which showed the refrigerating cycle of an air conditioner and a refrigerator, and the system of this invention.

Claims (1)

All locations where hot water generators such as water heaters and boilers are used using air conditioners and refrigerators, and water supply pipes to hot water generators such as water heaters and boilers are directly connected to buildings Heating water supply after cooling the refrigerant and heating the water supply by heat exchange with all or part of the refrigerant piping from the compressor discharge side of the air conditioner and refrigerator to the outlet of the condenser without cooling Connect to the water inlet of hot water and steam generators such as boilers and boilers.

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