Low-temperature gas supply device, heat transfer medium-cooling device, and low-temperature reaction control device

Abstract

A low-temperature gas supply device is provided with a first heat exchanger, in which a mixed gas mixing a vaporization gas of a low-temperature-liquefied gas with a gas of a temperature higher than the low-temperature-liquefied gas and the low-temperature-liquefied gas are introduced and heat-exchanged with each other, and the mixed gas is discharged as a low-temperature gas refrigerant and the low-temperature-liquefied gas is discharged as the vaporization gas; a mixing unit, in which the gas and the vaporization gas discharged from the first heat exchanger are mixed and discharged as the mixed gas; and a first control unit, in which, based on the difference between a detected temperature of the low-temperature gas refrigerant and an intended temperature, respective amounts of the gas introduced to the mixing unit and the vaporization gas are adjusted to control the temperature of the low-temperature gas refrigerant to the intended temperature.

1 . A low-temperature gas supply device, comprising:
 a first heat exchanger, in which a mixed gas mixing a vaporization gas of a low-temperature-liquefied gas with a gas of a temperature higher than the low-temperature-liquefied gas and the low-temperature-liquefied gas are introduced and heat-exchanged with each other, and the mixed gas is discharged as a low-temperature gas refrigerant and the low-temperature-liquefied gas is discharged as the vaporization gas;   a mixing unit, in which the gas of a temperature higher than the low-temperature-liquefied gas and the vaporization gas discharged from the first heat exchanger are mixed to discharge the mixed gas introduced to the first heat exchanger; and   a first control unit, in which, based on the difference between a detected temperature of the low-temperature gas refrigerant and an intended temperature, respective amounts of the gas of a temperature higher than the low-temperature-liquefied gas, which is introduced to the mixing unit, and the vaporization gas are adjusted to control the temperature of the low-temperature gas refrigerant to the intended temperature.   
     
     
         2 . A low-temperature gas supply device, comprising:
 a first heat exchanger, in which a low-temperature-liquefied gas and a gas of a temperature higher than the low-temperature-liquefied gas are introduced and heat-exchanged with each other and a vaporization gas of the low-temperature-liquefied gas is discharged and the gas of a temperature higher than the low-temperature-liquefied gas after heat-exchanging is discharged as a heat-exchanged gas;   a mixing unit, in which the heat-exchanged gas and the vaporization gas discharged from the first heat exchanger are mixed and discharged as a low-temperature gas refrigerant; and   a first control unit, in which, based on the difference between a detected temperature of the low-temperature gas refrigerant and an intended temperature, respective amounts of the gas of a temperature higher than the low-temperature-liquefied gas, the gas being introduced to the first heat exchanger, and the vaporization gas introduced to the mixing unit are adjusted to control the temperature of the low-temperature gas refrigerant to the intended temperature.   
     
     
         3 . The low-temperature gas supply device according to  claim 1 , wherein the mixing unit is an ejector. 
     
     
         4 . A heat transfer medium-cooling device, comprising:
 the low-temperature gas supply device of  claim 1 ;   a second heat exchanger, in which the low-temperature gas refrigerant discharged from the low-temperature gas supply device, the temperature of the low-temperature gas refrigerant being controlled, and a heat transfer medium circulated in a circulation route are heat-exchanged with each other; and   a second control unit, in which, based on the difference between a detected temperature of the heat transfer medium and an intended temperature for the heat transfer medium, an amount of the low-temperature gas refrigerant introduced to the second heat exchanger is adjusted to control a temperature of the heat transfer medium to the intended temperature for the heat transfer medium.   
     
     
         5 . The low-temperature reaction control device, comprising:
 the heat transfer medium-cooling device of  claim 4 ; and   a low-temperature reaction vessel, in which the heat transfer medium circulated in the circulation route is introduced, the temperature of the heat transfer medium being controlled, a reaction liquid in the low-temperature reaction vessel is cooled and adjusted to the intended temperature.   
     
     
         6 . A heat transfer medium-cooling device, comprising:
 a first heat exchanger, in which a mixed gas mixing a vaporization gas of a low-temperature-liquefied gas with a gas of a temperature higher than the low-temperature-liquefied gas and the low-temperature-liquefied gas are introduced and heat-exchanged with each other, and the mixed gas is discharged as a low-temperature gas refrigerant and the low-temperature-liquefied gas is discharged as the vaporization gas;   a mixing unit, in which the gas of a temperature higher than the low-temperature-liquefied gas and the vaporization gas discharged from the first heat exchanger are mixed to discharge the mixed gas introduced to the first heat exchanger;   a first control unit, in which, based on the difference between a detected temperature of the low-temperature gas refrigerant and an intended temperature, an amount of the vaporization gas introduced to the mixing unit is adjusted to control a temperature of the low-temperature gas refrigerant to the intended temperature;   a second heat exchanger, in which the low-temperature gas refrigerant discharged from the first heat exchanger, the temperature of the low-temperature gas refrigerant being controlled, and a heat transfer medium circulated in a circulation route are heat-exchanged with each other; and   a second control unit, in which, based on the difference between a detected temperature of the heat transfer medium and an intended temperature for the heat transfer medium, an amount of the gas of a temperature higher than the low-temperature-liquefied gas, which is introduced to the first heat exchanger, is adjusted to control a temperature of the heat transfer medium to the intended temperature for the heat transfer medium.   
     
     
         7 . A heat transfer medium-cooling device, comprising
 a first heat exchanger, in which a low-temperature-liquefied gas and a gas of a temperature higher than the low-temperature-liquefied gas are introduced and heat-exchanged with each other and a vaporization gas of the low-temperature-liquefied gas is discharged and the gas of a temperature higher than the low-temperature-liquefied gas after heat-exchanging is discharged as a heat-exchanged gas;   a mixing unit, in which the heat-exchanged gas and the vaporization gas discharged from the first heat exchanger are mixed and discharged as a low-temperature gas refrigerant;   a first control unit, in which, based on the difference between a detected temperature of the low-temperature gas refrigerant and an intended temperature, an amount of the vaporization gas introduced to the mixing unit is adjusted to control the temperature of the low-temperature gas refrigerant to the intended temperature;   a second heat exchanger, in which the low-temperature gas refrigerant discharged from the mixing unit, the temperature of the low-temperature gas refrigerant being controlled, and a heat transfer medium circulated in a circulation route are heat-exchanged with each other; and   a second control unit in which, based on the difference between a detected temperature of the heat transfer medium and an intended temperature for the heat transfer medium, an amount of the gas of a temperature higher than the low-temperature-liquefied gas, which is introduced to the first heat exchanger, is adjusted to control a temperature of the heat transfer medium to the intended temperature for the heat transfer medium.   
     
     
         8 . A low-temperature reaction control device, comprising:
 the heat transfer medium-cooling device of  claim 6 ; and   a low-temperature reaction vessel, in which the heat transfer medium circulated in the circulation route is introduced, the temperature of the heat transfer medium being controlled, and a reaction liquid in the low-temperature reaction vessel is cooled and adjusted to the intended temperature.   
     
     
         9 . The low-temperature gas supply device according to  claim 2 , wherein the mixing unit is an ejector. 
     
     
         10 . A heat transfer medium-cooling device, comprising:
 the low-temperature gas supply device of  claim 2 ;   a second heat exchanger, in which the low-temperature gas refrigerant discharged from the low-temperature gas supply device, the temperature of the low-temperature gas refrigerant being controlled, and a heat transfer medium circulated in a circulation route are heat-exchanged with each other; and   a second control unit, in which, based on the difference between a detected temperature of the heat transfer medium and an intended temperature for the heat transfer medium, an amount of the low-temperature gas refrigerant introduced to the second heat exchanger is adjusted to control a temperature of the heat transfer medium to the intended temperature for the heat transfer medium.   
     
     
         11 . The low-temperature reaction control device, comprising:
 the heat transfer medium-cooling device of  claim 10 ; and   a low-temperature reaction vessel, in which the heat transfer medium circulated in the circulation route is introduced, the temperature of the heat transfer medium being controlled, a reaction liquid in the low-temperature reaction vessel is cooled and adjusted to the intended temperature.   
     
     
         12 . A low-temperature reaction control device, comprising:
 the heat transfer medium-cooling device of  claim 7 ; and   a low-temperature reaction vessel, in which the heat transfer medium circulated in the circulation route is introduced, the temperature of the heat transfer medium being controlled, and a reaction liquid in the low-temperature reaction vessel is cooled and adjusted to the intended temperature.