Federalnoe kazennoe voennoe obrazovatelnoe uchrezhdenie vysshego obrazovaniya "Voennaya akademiya Raketnykh vojsk strategicheskogo naznacheniya imeni Petra Velikogo" MO RF
发明人:
Chmykhalo Aleksandr Igorevich,Spiryagin Valerij Viktorovich,Chelnokov Aleksej Viktorovich,Pankin Dmitrij Anatolevich
申请号：
RU20170140058
公开号：
RU2670222(C1)
申请日:
2017.11.17
申请国别(地区):
俄罗斯
年份:
2018
代理人:
摘要：
FIELD: defectoscopy.SUBSTANCE: method refers to the field of nondestructive testing and technical diagnostics of shell-and-tube heat exchangers using acoustic emission, operated in contact with chemically hazardous or combustible substances, and can be used to detect leaks in the heat exchanger during the diagnosis process, as well as to optimize the process of locating leaks in the tube bundle. Essence of the method consists in removing the contents of the channels for the working fluid and the channels for the heat exchange product, introducing a detection product – a gas (for example, an inert gas or nitrogen) into the working fluid passages, introducing a neutralizing liquid, for example 1–2 % acetic acid solution, into the shell space, to control the height of its ascent by means of a calibration table until the entire intertube space is filled, maintenance of pressure in one of the channels is higher than in the other, the identification of leakage of the product of detection from one channel to an
