公开(公告)号：US10424413B2

公开(公告)日：2019-09-24

申请号：US15526129

申请日：2015-11-06

Applicant: JOINT STOCK COMPANY “AKME-ENGINEERING”

Inventor： Petr Nikiforovich Martynov ,  Konstantin Dmitrievich Ivanov ,  Radomir Shamil'evich Askhadullin ,  Aleksey Nikolaevich Storozhenko ,  Alexander Yurievich Legkih ,  Vladimir Vladimirovich Ul'Yanov ,  Stepan Artemovich Borovitsky ,  Alexandr Ivanovich Filin ,  Sergey Victorovich Bylavkin

IPC: G21C15/00 ,  C23F11/02 ,  G21C15/28 ,  C23F11/00 ,  G21C17/022 ,  G21C19/28 ,  G21C19/303

Abstract: A nuclear reactor plant including a reactor; a coolant in the reactor; a gas system connected to the reactor and adapted to provide a gas supply to and gas removal from a space above the coolant; and a device for injection of gas into the coolant. The device is installed partially in the coolant and partially in the space above the coolant, and is adapted to supply gas from the space above the coolant to the coolant. The gas system and device are configured to carry out steps including: supplying gas to be injected into the coolant from the gas system to the space above the coolant space; injecting gas into the coolant by maintaining the gas pressure higher than coolant pressure in the device; and injecting gas into the gas system from the space above the coolant.

公开(公告)号：US10037822B2

公开(公告)日：2018-07-31

申请号：US15022834

申请日：2014-03-19

Applicant: Joint Stock Company “AKME-Engineering”

Inventor： Petr Nikiforovich Martynov ,  Radomir Shamilievich Askhadullin ,  Konstantin Dmitrievich Ivanov ,  Aleksandr Urievich Legkikh ,  Aleksey Nikolaevich Storozhenko ,  Aleksandr Ivanovich Filin ,  Sergey Viktorovich Bulavkin ,  Said Mirfaisovich Sharikpulov ,  Stepan Artemovich Borovitsky

IPC: G21C1/03 ,  G21C13/08 ,  G21C21/00 ,  C23C22/72 ,  C23C22/73 ,  G21C15/247 ,  G21C17/022

CPC classification number: G21C1/03 ,  C23C22/72 ,  C23C22/73 ,  G21C13/08 ,  G21C15/247 ,  G21C17/0225 ,  G21C21/00 ,  Y02E30/40

Abstract: The invention relates to the field of nuclear technology, and specifically to a method for the in situ passivation of steel surfaces. The method consists in installing, in a position intended for a regular core, a core simulator in the form of a model of the core, which models the shape thereof, the relative position of the core components, and also the mass characteristics thereof; next, the reactor is filled with a heavy liquid metal heat transfer medium, the heat transfer medium is heated to a temperature which provides for the conditions of passivation, and in situ passivation is carried out in two stages, the first of which includes an isothermal passivation mode in conformity with the conditions determined for this stage, and the second mode includes non-isothermal passivation, which is carried out under different conditions, after which the core simulator is removed and the regular core is installed in the place thereof. The method provides for the corrosion-resistance of steel elements in a heavy liquid metal heat transfer medium environment and permits a decrease in the maximum rate of oxygen consumption during the initial period of operation of a nuclear actor.

公开(公告)号：US10204712B2

公开(公告)日：2019-02-12

申请号：US15102350

申请日：2014-12-08

Applicant: Joint Stock Company “AKME-Engineering”

Inventor： Petr Nikiforovich Martynov ,  Radomir Shamilievich Askhadullin ,  Aleksey Nikolaevich Storozhenko ,  Konstantin Dmitrievich Ivanov ,  Aleksandr Urievich Legkikh ,  Said Mirfaisovich Sharikpulov ,  Aleksandr Ivanovich Filin ,  Sergey Viktorovich Bulavkin

IPC: C23C22/72 ,  G21C13/087 ,  C23C22/73 ,  G21C17/022 ,  C23C8/10

Abstract: A method for the inner-contour passivation of steel surfaces of a nuclear reactor consists in filling a first contour of a nuclear reactor with a liquid metal coolant, introducing a reagent into the liquid metal coolant, said reagent interacting with the material of elements of the first contour, forming a protective film, and heating the liquid metal coolant, having the reagent introduced therein, to a temperature allowing for conditions for forming the protective film. The liquid metal coolant having the reagent introduced therein is kept at said temperature until a continuous protective film is formed on the surface of the material of the elements of the first contour. The liquid metal coolant having reagent introduced therein is heated by means of the friction thereof against rotating vanes of a vane pump, which is submerged in the liquid metal coolant. The present invention thus provides for a simpler passivation process, a more reliable passivation mode, an increase in the safety thereof and a simpler control over the process of passivation of steel surfaces.

公开(公告)号：US20170018319A1

公开(公告)日：2017-01-19

申请号：US15102350

申请日：2014-12-08

Applicant: JOINT STOCK COMPANY "AKME-ENGINEERING"

Inventor： Petr Nikiforovich Martynov ,  Radomir Shamilievich Askhadullin ,  Aleksey Nikolaevich Storozhenko ,  Konstantin Dmitrievich Ivanov ,  Aleksandr Urievich Legkikh ,  Said Mirfaisovich Sharikpulov ,  Aleksandr Ivanovich Filin ,  Sergey Viktorovich Bulavkin

IPC: G21C13/087 ,  C23C22/73

CPC classification number: G21C13/087 ,  C23C22/73 ,  G21C17/0225 ,  G21Y2002/103 ,  G21Y2004/20 ,  Y02E30/40

Abstract: A method for the inner-contour passivation of steel surfaces of a nuclear reactor consists in filling a first contour of a nuclear reactor with a liquid metal coolant, introducing a reagent into the liquid metal coolant, said reagent interacting with the material of elements of the first contour, forming a protective film, and heating the liquid metal coolant, having the reagent introduced therein, to a temperature allowing for conditions for forming the protective film. The liquid metal coolant having the reagent introduced therein is kept at said temperature until a continuous protective film is formed on the surface of the material of the elements of the first contour. The liquid metal coolant having reagent introduced therein is heated by means of the friction thereof against rotating vanes of a vane pump, which is submerged in the liquid metal coolant. The present invention thus provides for a simpler passivation process, a more reliable passivation mode, an increase in the safety thereof and a simpler control over the process of passivation of steel surfaces.

Abstract translation: 用于核反应堆的钢表面的内轮廓钝化的方法包括用液态金属冷却剂填充核反应堆的第一轮廓，将试剂引入液态金属冷却剂中，所述试剂与元素的材料相互作用 第一轮廓，形成保护膜，并且将其中引入有试剂的液态金属冷却剂加热至允许形成保护膜的条件的温度。 将其中引入有试剂的液态金属冷却剂保持在所述温度，直到在第一轮廓的元件的材料的表面上形成连续的保护膜。 引入其中的试剂的液态金属冷却剂借助于与浸没在液态金属冷却剂中的叶片泵的旋转叶片的摩擦而被加热。 因此，本发明提供了更简单的钝化过程，更可靠的钝化模式，其安全性的增加以及对钢表面钝化过程的更简单的控制。

公开(公告)号：US10902959B2

公开(公告)日：2021-01-26

申请号：US15317796

申请日：2015-06-11

Applicant: JOINT STOCK COMPANY “AKME-ENGINEERING”

Inventor： Petr Nikiforovich Martynov ,  Konstantin Dmitrievich Ivanov ,  Radomir Shamillevich Askhadullin ,  Aleksey Nikolaevich Storozhenko ,  Andrey Alekseevich Simakov ,  Aleksandr Urievich Legkih

IPC: G21C15/02 ,  G21C17/025 ,  G21C19/303 ,  G21C15/247

Abstract: The method and system for control of oxygen concentration in the coolant of a reactor plant including a reactor, coolant in the reactor, gas system, mass-exchange apparatus, disperser and an oxygen sensor in the coolant have been disclosed. The method includes the following steps implemented by the system: estimation of the oxygen concentration; comparison of the oxygen concentration with the permissible value; if the oxygen concentration is reduced, comparison of the reduction value and\or rate with the corresponding threshold value; if the reduction value and\or rate of oxygen concentration is below the threshold value, activation of the mass-exchange apparatus; if the reduction value and/or rate of oxygen concentration is above the corresponding threshold value, supply of oxygen-containing gas from the gas system to the near-coolant space and/or activation of the disperser. Technical result: improvement of controllability of oxygen concentration in coolant, enhancement of safety and extension of reactor plant operating life.

公开(公告)号：US20160247587A1

公开(公告)日：2016-08-25

申请号：US15021697

申请日：2014-05-08

Applicant: Joint Stock Company "AKME-Engineering"

Inventor： Radomir Shamilievich Askhadullin ,  Konstantin Dmitrievich Ivanov ,  Petr Nikiforovich Martynov ,  Aleksey Nikolaevich Storozhenko

IPC: G21C17/025 ,  G21C15/247

CPC classification number: G21C17/025 ,  G21C15/247

Abstract: The invention relates to nuclear power engineering and can be used in power plants with lead-containing liquid metal coolants, and particularly in fast neutron reactors. The proposed nuclear reactor and the method and system for monitoring the thermodynamic activity of oxygen in a coolant with continuously operational oxygen thermodynamic activity sensors located in the “hot” and “cold” zones of the reactor vessel and an additional intermittently operational sensor make it possible to carry out continuous monitoring in order to maintain set oxygen thermodynamic activity values in a liquid metal coolant under any prescribed operating regime.

Abstract translation: 本发明涉及核电工程，可用于含铅液态金属冷却剂的发电厂，特别是在快中子反应堆中。 所提出的核反应堆以及用于监测冷却剂中氧的热力学活动的方法和系统，其具有位于反应堆容器的“热”和“冷”区域中的连续运行的氧热力学活动传感器以及附加的间歇运行的传感器，使其成为可能 以进行连续监测，以便在任何规定的操作状态下，在液态金属冷却剂中保持设定的氧热力活动值。