"Borei" and "Yaseni" will equip with silent "stealth" pumps of new generation
August 15, 2017, 00:01
The newest Russian submarines of Project 995 of the type
"Borey-A" and 885 "Yasen-M" will turn into "black
holes" for submarines, anti-submarine ships and enemy aircraft. They will
become virtually indistinguishable for hydroacoustic stations - the main means
of detecting submarines. These unique capabilities of the submarine were
obtained thanks to the latest silent, hermetic pumps of domestic production.
Previously, all Soviet and Russian boats were equipped with the products of the
Moldavian scientific and technical center "Hydrotechnika".
In the construction of each boat dozens of pumps. In
fact, this is the heart and blood system of the nuclear submarine. They provide
circulation of liquid in the reactor, ascent and immersion, water filling
torpedo tubes before the shot, cooling systems and equipment of submarines. But
the noise from their work is the main unmasking feature of an atomic submarine.
It is he who is heard by the sonar's sonar stations.
Unique Russian pumps are developed and serially produced
by the company "Lopastnye hydraulic machines" (LGM). As
"Izvestia" was told in the Navy Commander-in-Chief, the new airless
sealed electric pumps passed a full cycle of tests and are included in
technical projects of the under construction and prospective nuclear submarines
of the Navy.
The LGM confirmed that the pumps were completed, their
delivery to the customer began.
"The products and the production line have been
completely created at the expense of the enterprise," Roman Põkhtin,
Executive Director of LGM, told Izvestiya. - All pumps meet the 4th category
requirements for vibration hydraulic equipment. This is the highest category of
products. In the world, such things produce only a few firms. Their
characteristics are considered top secret, since they determine the physical
portrait of each particular submarine. Knowing these parameters, it can be
easily detected against the background of the natural noises of the ocean.
RTC "Hydrotechnika" (Chisinau) since 1962
supplied pumping systems for the Soviet and Russian Navy. Until recently,
Moldovan products were purchased for all ships built by the Russian Navy. Pumps
of LGM are completely Russian products. They have a simple design, small
dimensions and improved vibro-noise insulation. A full-power pump can hold a
five-ruble coin on its lid.
The expert on naval armaments Vladimir Shcherbakov told
Izvestia that reducing the noise level of the submarine systems and mechanisms
is one of the most serious problems.
- The noise of the submarine is affected by many factors,
- said Vladimir Shcherbakov. - First of all, this is the work of the main power
plant: nuclear reactor, pumps, diesel engines, shafts, propellers or water jet.
In the case of screws and water cannons, noise reduction is achieved by
improving their circuits. Reduce the visibility of a working diesel engine or
auxiliary machinery can be due to the suspension systems and rubber mats for
which they are installed. With the work of the reactor is more difficult, you
cannot put it on the vibro platform, you cannot overlay the rugs. Therefore,
it is possible to achieve noise reduction by improving the operation of the
pumps providing it. The noise of the continuously circulating liquid is the
loudest on the submarine.
At present, nuclear submarines Borey-A (5 units) and
Yasen-M (6 units) are under construction in the interests of the Navy for new
projects. Their peculiarity is the use of only domestic equipment. In the future,
modular ships of the 5th generation of the "Husky" type will be laid,
on which systems and mechanisms of exclusively Russian production should also
be installed.
Translated by Google Source
Borei-class nuclear sub (Project 955): Details
Yasen / Graney Class Submarine (Project 885/885M):
Details
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