Title:
アンモニア/CO2冷凍システムの運転方法と、該システムに使用されるCO2ブライン生成装置
Document Type and Number:
Japanese Patent JP4922215
Kind Code:
B2
Abstract:
The object of the invention is to provide a CO 2 brine production system comprising apparatuses working on an ammonia refrigerating cycle, a brine cooler (3) for cooling and condensing CO 2 by utilizing the latent heat of vaporization of the ammonia, and a liquid pump (5) provided in a supply line (52) for supplying the cooled and liquefied CO 2 to a refrigeration load side (6). Said liquid pump is a variable-discharge pump for allowing C02 to be circulated forcibly. The CO 2 brine production system further comprises: a controller for controlling the liquid pump (5) to vary its discharge based on at least one of the detected signals of the temperature or pressure in a cooler provided to the refrigeration load side or pressure difference between the outlet and inlet of the pump; a supercooler (8) to supercool at least a part of the liquid CO 2 in a liquid reservoir (4) provided for reserving the cooled and liquefied CO 2 based on the condition of cooled state of CO 2 in the liquid reservoir (4) or in the supply line; and a pressure sensor (P3) provided for detecting a pressure difference between the outlet and inlet of said liquid pump, wherein the conditions of cooling of CO 2 is judged based on the signal from said pressure sensor.
Inventors:
Takashi Nemoto
Akira Taniyama
Shinjiro Akahoshi
Iwao Terashima
Akira Taniyama
Shinjiro Akahoshi
Iwao Terashima
Application Number:
JP2008061272A
Publication Date:
April 25, 2012
Filing Date:
March 11, 2008
Export Citation:
Assignee:
Maekawa Manufacturing Co., Ltd.
International Classes:
F25B1/00; F25B9/00; F25B25/00
Domestic Patent References:
| JP2000274789A | ||||
| JP200248422A | ||||
| JP2000304374A | ||||
| JP7113561A | ||||
| JP2002310464A | ||||
| JP5256478A | ||||
| JP9210475A |
Attorney, Agent or Firm:
Patent business corporation Takahashi Matsumoto & Partners