JPS58140585A - Method of cooling denatured alcohol - 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 relates to a method for cooling modified argon, and more particularly, to a method for cooling modified argon suitable for collecting purified argon.

Conventionally, purified argon (hereinafter abbreviated as "refiner r") is collected. - Crude argon (hereinafter referred to as crude A) taken out from an air separation device is collected.
The modified argon (hereinafter abbreviated as modified argon), which has been heated to approximately 250°C during bulk separation, is heated to approximately 5°C due to the cooling sensation supplied from Refrigeration II & It is cooled.

This method of cooling the transformed man r requires the installation of a refrigeration system, which increases the equipment price and operating costs.
n-, the drawback is s+-2.

The present invention is aimed at eliminating the above-mentioned drawbacks, and includes cooling a cooling tank with liquid oxygen discharged from a g-room, separating crude Ar and oxygen taken out from an air separation device in the cooling tank, and In addition, by cooling the metamorphic mulch whose temperature has risen during the oxygen separation, it is possible to eliminate the need for a refrigeration device, reduce the cost of the equipment, and provide a method for cooling the spontaneous metamorphic mulch while reducing operating costs. be.

A first embodiment of the present invention will be explained with reference to the drawings.

The drawing is a system diagram of an air separation device for collecting refiner r according to the present invention, in which heat is exchanged from gAr column W. In the palladium probe, when the oxygen contained in the crude AF reacts with hydrogen, the llI element is separated, and a modified A is obtained at a temperature of approximately ZSO°C.

This modified Ar is supplied to the argon cooler immersed in a refrigerant such as water filled in a refrigerant tank 14 through a conduit. On the other hand, the refrigerant charged in the refrigerant tank 14 is discharged from the main condenser 17 installed in the rectification tower through the conduit vanes.
The liquid oxygen immersed in the refrigerant is supplied to the evaporator and is cooled down to about 1'C by the flowing liquid oxygen.The liquid oxygen that has cooled the refrigerant is vaporized and released into the atmosphere through a conduit. Argon cooler The modified Ar at about 250°C supplied by the argon cooler is heated by about 1°C while flowing over the argon cooler.
℃, and the cooled modified At is supplied to the argon dehumidification column, which is used in a switched manner, through a conduit. The modified adult r that has been dehumidified by argon dehumidification 419 is supplied to the purified Ar column through the heat exchanger U and the conduit tube 37, where impurities such as nitrogen are removed and purified At is converted to the conduit tube. It is collected upstream. In this case, the temperature of the refrigerant is determined by detecting the temperature of the cooled metamorphic Ar with a temperature sensor installed in the conduit, and based on the detected temperature, the temperature controller uses a control valve 52 installed in the conduit. The temperature is maintained properly by adjusting the opening degree of a control valve provided in the conduit l that supplies the hot water heating medium to the refrigerant tank 14. The liquid level of the refrigerant injected into the refrigerant tank 14 is maintained appropriately between the liquid level detector 8° and the control valve provided in the conduit chrysanthemum for refrigerant discharge. The drain is connected to a drain pipe 41. After opening the valve, it is discharged from the argon cooler.

In the method of cooling modified Ar as in this embodiment, the heated modified Ar is cooled to liquid #Il discharged from the main condenser of the rectification column.
Since cooling is performed using a naturally cooled refrigerant, there is no need for a refrigeration system, and the cold contained in liquid oxygen, which was conventionally wasted, can be effectively recovered by cooling the refrigerant, so the air content of the entire 1111M plant is reduced. cold compensation can be reduced.

As explained above, the present invention cools a refrigerant with liquid oxygen discharged from an air separation device, uses an armpit refrigerant to separate oxygen from coarse sludge taken out from the air separation device, and the oxygen separation By cooling the metamorphic Ar that has been heated at the time, the cold iK
Since the equipment is not needed, it is possible to reduce the cost of the equipment and reduce operating costs.

[Brief explanation of the drawing]

The drawing explains one embodiment of the present invention, and is a system diagram of an air separation device for collecting refiner r in which the present invention is implemented. lo...@Ar tower, 11...heat exchanger, U...argon blower 1l...palladium catalyst tank, 14... Cold cypress, stop...
・, argon cooler, audience... rectification tower, 17...
...Main condenser, Visit...Liquid acid blower evaporator,
From 30... conduit

Claims (1)

[Claims] ! , In a method for separating oxygen from primary argon taken out from the air separation device II and cooling the modified argon heated during axillary oxygen separation, the refrigerant is cooled with liquid oxygen discharged from the air separation device, and wrinkles are removed. A method for cooling metamorphosed argon, comprising cooling the metamorphosed argon with a refrigerant.