JPH05133639A - Refrigerating plant - Google Patents

Abstract

PURPOSE:To obtain a refrigerating plant in which a predetermined power of a refrigerating facility cooling vapor compression type refrigerator for a refrigerating warehouse, etc., can be reduced. CONSTITUTION:A refrigerating plant comprises a refrigerating facility for a refrigerating warehouse 8, etc., a temperature regulating facility such as an air conditioner 7, etc., a vapor absorption refrigerator 1 using vapor generated by waste heat of a prime mover such as a gas turbine as a drive source, and a vapor compression type refrigerator 2 using a prime mover itself or power generated by the prime mover as a drive source. The refrigerator 2 has a condenser 5 using chilled water of the refrigerator 1 as a cold source and an evaporator 6 for cooling refrigerant of the refrigerating facility.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to refrigeration plant improvements.

[0002]

2. Description of the Related Art In a refrigeration plant, steam obtained by exhaust heat of a prime mover such as a gas turbine serves as a heat source of a steam absorption refrigerator. However, the cold water output of the absorption refrigerator is at most 5 to 7 ° C. Therefore, when a refrigerating facility that requires colder heat than this is required, it is necessary to drive a vapor compression refrigerator such as a turbo refrigerator or a screw refrigerator with the prime mover itself or the electric power generated by the prime mover. .

For example, in a facility that supplies cold water of 7 ° C. for air conditioning and cold air of 0 ° C. for a frozen warehouse, a vapor absorption refrigerator is used for an air conditioner and a gas turbine engine for a frozen warehouse. The turbo chiller is driven by itself or the electric power generated by the gas turbine prime mover. On the other hand, the exhaust heat of each refrigerator needs to be removed by the cooling water at room temperature, and the condensation pressure in the condenser is uniquely determined by the cooling water at room temperature as in the turbo refrigerator. Therefore, the required power of the refrigerator results in consumption of most of the power generated by the gas turbine prime mover.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object thereof is to reduce the required power of a vapor compression refrigerator for cooling refrigeration equipment such as a frozen warehouse. It is to provide a refrigeration plant that can be used.

[0005]

That is, the refrigerating plant of the present invention is a driving source for steam generated by exhaust heat of a refrigerating facility such as a refrigerating warehouse, a temperature adjusting facility such as an air conditioner, and a prime mover such as a gas turbine. And a vapor compression refrigerating machine having a driving source of the prime mover itself or electric power generated by the prime mover, and the vapor compression refrigerating machine cools cold water of the vapor absorbing refrigerating machine. It has a condenser as a source and an evaporator for cooling the refrigerant of the refrigeration equipment.

As described above, refrigerating equipment such as a refrigerating warehouse, temperature control equipment such as an air conditioner, a vapor absorption refrigerating machine which uses steam generated by exhaust heat of a prime mover such as a gas turbine as a drive source, the prime mover itself or It consists of a vapor compression refrigerator that uses electric power generated by the prime mover as a drive source, and the vapor compression refrigerator has a condenser that uses cold water of the vapor absorption refrigerator as a cold heat source and a refrigerant of the refrigeration equipment. Since the evaporator for cooling is provided, the temperature difference between the condenser and the evaporator of the vapor compression refrigerator is reduced, and the driving power of the vapor compression refrigerator can be reduced.

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a steam-fired vapor absorption refrigerator, and 1a is a direct-fired vapor absorption refrigerator, which are arranged in parallel. The steam absorption refrigerator 1 is configured to use steam generated by exhaust heat of a gas turbine (not shown) as a drive source. In addition, a direct-burning type vapor absorption refrigerator 1a
Is installed as a standby machine and is used intermittently when the gas turbine is stopped or the load on the refrigeration plant is increased.

On the other hand, 2 is a vapor compression refrigerator, and the vapor compression refrigerator 2 has a turbo compressor 4, a condenser 5, an evaporator 6 and an expansion valve 7. The turbo compressor 4 is driven by a motor 3 having a drive source of electric power generated by a gas turbine itself or a generator (not shown) driven by the gas turbine. Reference numeral 8 denotes an air conditioner, and the air conditioner 8 is arranged in parallel with the condenser 5. 9
Is a refrigerating warehouse, and the refrigerating warehouse 9 uses the refrigerant cooled by the evaporator 6 as a cold heat source. Reference numeral 10 denotes a chilled water pump. The chilled water pump 10 is adapted to supply the chilled water of the vapor absorption refrigerator 1 to the condenser 4 or the air conditioning equipment 8, and the water discharged from the condenser 4 or the air conditioning equipment 8 is vapor absorption refrigeration. It is supposed to return to machine 1.

[0009]

EXAMPLE The refrigerating plant of the present invention shown in FIG. 1 and a conventional refrigerating plant using a cooling tower as cooling equipment for a condenser were compared and shown in the following "Table". From this "table", the driving power of the turbo compressor of the plant of the present invention is 45 kw (= 175 kw) as compared with the conventional plant.
It can be seen that it can be reduced (-130 kw).

[0010]

As described above, according to the present invention, the vapor absorption using the vapor generated by the exhaust heat of the refrigerating equipment such as a refrigerating warehouse, the temperature control equipment such as the air conditioner, and the prime mover such as the gas turbine as a drive source. A refrigerating machine and a vapor compression refrigerating machine having a driving source of the prime mover itself or electric power generated by the prime mover, and the vapor compressing refrigerating machine condensing using cold water of the vapor absorption refrigerating machine as a cold heat source. Since it has an evaporator and an evaporator for cooling the refrigerant of the refrigeration equipment, the temperature difference between the condenser and the evaporator of the vapor compression refrigerator is reduced, and the drive power of the vapor compression refrigerator is reduced. Can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a refrigeration plant according to the present invention.

[Explanation of symbols]

 1 Vapor Absorption Refrigerator 2 Vapor Compression Refrigerator 5 Condenser 6 Evaporator 7 Air Conditioner 8 Freezer Warehouse

Claims (1)

[Claims] 1. A refrigeration facility such as a refrigerating warehouse, a temperature control facility such as an air conditioner, a steam absorption refrigeration machine driven by steam generated by exhaust heat of a prime mover such as a gas turbine, the prime mover itself or the relevant A vapor compression refrigerator that uses electric power generated by a prime mover as a drive source, and the vapor compression refrigerator cools a condenser of the condenser that uses cold water of the vapor absorption refrigerator as a cold heat source and a refrigerant of the refrigeration equipment. A refrigerating plant having an evaporator for operating.