Device for maintaining internal temperature of pressure vessel

Patent metadata

Field	Value
Publication number	US-10907770-B2
Application number	US-201916439017-A
Country	US
Kind code	B2
Filing date	Jun 12, 2019
Priority date	Dec 12, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A device for maintaining the internal temperature of a pressure vessel. The device includes a pressure vessel equipped with a main heater for heating test water to a predetermined test temperature and for maintaining the predetermined test temperature, a preheater for primarily heating the test water to the predetermined test temperature before the main heater heats the test water, and a heat exchanger including an feed pipe for feeding the test water heated by the preheater to the pressure vessel and a discharge pipe for transporting the test water discharged from the pressure vessel, in which the feed pipe is disposed inside the discharge pipe.

First claim

The invention claimed is:

1. A device for maintaining an internal temperature of a pressure vessel, the device comprising:
the pressure vessel equipped with a main heater for heating test water to a predetermined test temperature and for maintaining the predetermined test temperature;
a preheater for primarily heating the test water to the predetermined test temperature before the main heater heats the test water; and
a heat exchanger including a feed pipe for feeding the test water heated by the preheater to the pressure vessel and a discharge pipe for transporting the test water discharged from the pressure vessel, wherein the feed pipe is disposed inside the discharge pipe.

2. The device according to claim 1 , wherein the feed pipe is inserted into the pressure vessel from the bottom side and extends up to an upper portion of the pressure vessel.

3. The device according to claim 1 , wherein the pressure vessel further includes a specimen holding rack for holding a plurality of specimens.

4. The device according to claim 3 , wherein the specimen holding rack has a plurality of hooks.

Assignees

• Jang Hun
• Mok Yong Kyoon
• Kim Yoon Ho
• Choi Min Young
• Ko Dae Gyun
• Lee Sung Yong
• Yoo Jong Sung
• Kepco Nuclear Fuel Co Ltd

Inventors

• Jang Hun
• Mok Yong Kyoon
• Kim Yoon Ho
• Choi Min Young
• Ko Dae Gyun
• Lee Sung Yong
• Yoo Jong Sung

Classifications

• G01N17/02 Primary

  Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement · CPC title

• G21C17/06 Primary

  Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination (G21C17/08, G21C17/10 take precedence; detecting leaking fuel elements during reactor operation G21C17/04) · CPC title

• Y02E30/30

  Nuclear fission reactors · CPC title

• F17C1/12 Primary

  with provision for thermal insulation ({F17C1/14, F17C1/16 take precedence}; thermal insulation in general F16L59/00) · CPC title