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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 13. Отображено 13.
22-04-2015 дата публикации

Method, device and system for measuring concentration of hydrogen in nuclear power station containment vessel

Номер: CN104538070A
Автор: XIAO ZHOU, HE DAYU, DONG XIAOSHENG, XU DAN, LIU ZHIYIN, LYU AIGUO, FU HAO, LIU LU
Принадлежит:

The invention discloses a method for measuring a concentration of hydrogen in a nuclear power station containment vessel. The method comprises that a hydrogen measurement part plated with a palladium-silver alloy membrane is arranged in a nuclear power station containment vessel, a processor cabinet acquires a conductivity signal of the hydrogen measurement part after hydrogen absorption and release, and the processor cabinet determines a concentration of hydrogen in the nuclear power station containment vessel according the acquired conductivity signal and a signal of pressure in the nuclear power station containment vessel. The method for measuring a concentration of hydrogen in a nuclear power station containment vessel can realize safe and accurate measurement of a concentration of hydrogen in the nuclear power station containment vessel. The invention also discloses a device and system for measuring a concentration of hydrogen in a nuclear power station containment vessel.

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Номер записи: 1
30-10-2020 дата публикации

Snow removal rolling brush double-shaft structure

Номер: CN0211815952U
Автор: DONG XIAOSHENG, LIU JILONG, YANG LIJUN, YANG XI, WANG KUN
Принадлежит: BEIJING HENGFU ZHONGRUI ENVIRONMENTAL PROT EQUIPMENT CO LTD, BEIJING HENGFU ZHONGRUI ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD.

The utility model discloses a double-shaft structure of a snow removal rolling brush. Arc top plate, vertical plates are fixedly connected to the front end and the rear end of the arc-shaped top plate; two symmetrically arranged supporting assemblies are arranged on the vertical plate; motors are fixedly connected to the side walls of the ends, away from each other, of the vertical plates, the output ends of the motors penetrate through the vertical plates and are jointly and fixedly connected with a roller, rolling brushes are evenly and separately arranged on the roller, a transversely-arranged connecting plate is fixedly connected between the vertical plates, and a snow-proof assembly is arranged on the upper side wall of the connecting plate. Support assembly, when the snow removing device needs to be overhauled, the snow removing device can be overhauled; starting cylinder, driving extension rod to extend, and then the supporting block makes contact with the ground, so that the whole ...

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Номер записи: 2
30-10-2020 дата публикации

Improved structure of snow removing shovel

Номер: CN0211815945U
Автор: DONG XIAOSHENG, WANG KUN, YANG LIJUN, GAO WEINAN, YANG XI
Принадлежит: BEIJING HENGFU ZHONGRUI ENVIRONMENTAL PROT EQUIPMENT CO LTD, BEIJING HENGFU ZHONGRUI ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD.

The utility model discloses an improved structure of a snow removing shovel. Support plate, the side wall of one side of the supporting plate is fixedly connected with a connecting plate; an insertinggroove is formed in one side of the connecting plate; an inserting block is inserted into the inserting groove, the other end of the inserting block extends out of the connecting plate and is fixedlyconnected with a shovel plate, a mounting assembly is fixedly connected to the side wall of the upper end of the connecting plate, an obliquely-arranged sleeve rod is fixedly connected to the upper side wall of the supporting plate, an adjusting groove is formed in the upper end of the sleeve rod, and a stretching assembly is slidably connected into the adjusting groove. Improved structure of snow removing shovel, mounting assembly, when the shovel plate needs to be disassembled, the threaded rod is rotated to drive the locking plate to move upwards and move out of the inserting block, in this way ...

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Номер записи: 3
07-12-2011 дата публикации

Method for monitoring flow rate of radioactive gas exhaust flow of nuclear power plant

Номер: CN0102269606A
Автор: YU SUN, JIAOYA WANG, XINJIAN ZHOU, XIAOSHENG DONG, YAJIE TIAN, SUN YU, WANG JIAOYA, ZHOU XINJIAN, DONG XIAOSHENG, TIAN YAJIE
Принадлежит:

The invention discloses a method for monitoring the flow rate of radioactive gas exhaust flow of a nuclear power plant, which comprises the following steps: utilizing a pressure gauge in an EUF (containment filtration and exhaust) system to measure the pressure value p1 before a restricted orifice, acquiring the mass flow rate of the exhaust flow before the restricted orifice from a pipeline design file of the EUF system according to the obtained pressure value p1 before the restricted orifice, and further utilizing a formula shown in the specification to calculate the volume flow rate of the radioactive gas exhaust flow, wherein in the formula, p2 is the absolute pressure of the gas at a monitoring point; T2 is the absolute temperature of the gas at the monitoring point; and RMix is the mixed gas constant of the gas exhaust flow at the monitoring point. Compared with the prior art, pressure data measured by the pressure gauge in the EUF system and pipeline design data of the EUF system ...

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Номер записи: 4
02-04-2014 дата публикации

Diversity driving system and method for nuclear power plant

Номер: CN103700414A
Автор: JIANG HUI, LIU AIGUO, TIAN YAJIE, ZHOU WEIHUA, TAN GUOCHENG, FU TAO, SUN WEI, ZHANG LONGQIANG, SUN YONGBIN, WANG ZHONGQIU, SUN QI, CHEN WEIHUA, PENG HUAQING, DONG XIAOSHENG, HE DAYU
Принадлежит:

The invention relates to a diversity driving system and a diversity driving method for a nuclear power plant. The diversity driving system for the nuclear power plant comprises a diversity driving cabinet, wherein the diversity driving cabinet comprises a judgment module and an interface module. According to the diversity driving system for the nuclear power plant, a reactor and a steam turbine can be shut down in case of software common cause failures of a digital instrument control system, so that the risk of beyond design basis accidents caused by incapability of shutting down the reactor and the steam turbine and starting functions of corresponding special relieving facilities in case of software common cause failures and anticipated transient and design basis accidents of the digital instrument control system of the nuclear power plant is reduced.

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Номер записи: 5
31-08-2011 дата публикации

Nuclear power station valve action time testing system and method

Номер: CN0102169734A
Автор: YAJIE TIAN, HUI JIANG, LONGQIANG ZHANG, XIAOSHENG DONG, HENG LI, XINNIAN HUANG, QIAOYAN WANG, JIN PENG, PING WANG, TIAN YAJIE, JIANG HUI, ZHANG LONGQIANG, DONG XIAOSHENG, LI HENG, HUANG XINNIAN, WANG QIAOYAN, PENG JIN, WANG PING
Принадлежит:

The invention relates to a nuclear power station valve action time testing system and method, wherein the system comprises a safety level operating module, a logic processing module and a timer, wherein the safety level operating module is used for generating a test command signal; the logic processing module is used for sending the test command signal to a valve to be tested and the timer so as to start the valve to be tested to act and start the timer to start timing, and is also used for sending a valve location feedback signal generated by the valve to be tested to the timer so as to stopthe timer from timing; and the timer is used for receiving the test command signal to start timing, receiving the valve location feedback signal to stop timing and calculating the action time of the valve to be tested according to the timing starting time and the timing stopping time. The invention has the advantages of being suitable for a digitizer controlled system platform of a nuclear power station ...

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Номер записи: 6
11-06-2014 дата публикации

Nuclear power station rod-control and rod-position system for driving test

Номер: CN103854708A
Автор: DONG WEI, WEN XIAOMEI, SHANG JING, LI HENG, WANG PING, TIAN YAJIE, DONG XIAOSHENG
Принадлежит:

The invention relates to a nuclear power station rod-control and rod-position system for driving a test. The nuclear power station rod-control and rod-position system comprises a rod-position system and a rod-control system. The rod-control system comprises a control processing device and a power supply equipment cabinet. The control processing device comprises a human-computer interface unit and a logical processing unit. The human-computer interface unit is used for receiving a rod-position signal pre-treated by the rod-position system, displaying the rod-position signal and receiving an input operator instruction. The logical processing unit is used for generating a movable signal according to the operator instruction and a feedback signal of the power supply equipment cabinet and transmitting the movable signal to the power supply equipment cabinet to drive a control rod-driving mechanism to move. The nuclear power station rod-control and rod-position system for driving a test realizes ...

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Номер записи: 7
01-04-2015 дата публикации

Diversified driving method, diversified driving device and diversified driving system for nuclear power station

Номер: CN104485142A
Автор: TIAN YAJIE, WANG QIAOYAN, ZHOU WEIHUA, JIANG HUI, ZHANG XIAORU, ZHANG LONGQIANG, DONG XIAOSHENG, PENG HUAQING
Принадлежит:

The invention discloses a diversified driving method for a nuclear power station. The method comprises the following steps: acquiring parameter information of each process in operation of the nuclear power station; comparing the parameter information of each process with a preset corresponding set value; outputting a signal for driving the execution of automatic functions if more than one but not all of the process parameter information exceeds the corresponding set value, wherein the automatic functions include an automatic tripping function of a steam turbine, an automatic start function of an auxiliary water supply electric pump, an automatic start function of a steam driven pump, a main steam automatic isolation function, a main water supply automatic isolation function and an automatic pump shutdown function of a reactor coolant pump. Besides, the invention also discloses a diversified driving device and a diversified driving system for the nuclear power station.

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Номер записи: 8
08-04-2015 дата публикации

Method and device for coordination control of reactors of nuclear power plant

Номер: CN104505134A
Автор: DONG WEI, DONG XIAOSHENG, ZENG BIN, WANG XUFENG, SHANG JING, GOU XIAOLONG, TANG HUAXIONG
Принадлежит:

The invention discloses a method for coordination control of reactors of a nuclear power plant. The method comprises the steps of receiving electric power signals of steam turbines of the nuclear power plant; acquiring load information of the steam turbines according to the electric power signals; detecting whether the load of each steam turbine reaches 96%Pn or not according to the load information of the steam turbines; triggering the corresponding steam turbine to enter a reactor pressure control mode if the condition that the load of the corresponding steam turbine reaches 96%Pn is detected. In addition, the invention further discloses a device for the coordination control of the reactors of the nuclear power plant.

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Номер записи: 9
11-06-2014 дата публикации

Design method for nuclear power station reactor control system

Номер: CN103853052A
Автор: GOU XIAOLONG, ZHANG LONGQIANG, DONG XIAOSHENG, PENG HUAQING, TAN GUOCHENG, ZHOU WEIHUA, DONG WEI, TIAN JUN
Принадлежит:

The invention provides a design method for a nuclear power station reactor control system. The design method comprises that: S1. a Relap5 thermal-hydraulic model and a mathematical model are established; S2. a control scheme is confirmed according to performance indexes of a reactor control system and the mathematical model; S3. a Simulink model is established for the reactor control system; S4. different control parameters are respectively selected in the Simulink model, and transient simulation is completed via the Relap5 and the Simulink and the control parameters are adjusted; S5. whether the simulation result meets the performance requirement of the reactor control system is judged; if the judgment result is no, the process of the method returns to the S2; and if the judgment result is yes, S6 is executed; and S6. setting values of the control parameters are outputted. Design of the reactor control system is realized via the control system modeling simulation method based on the Relap5 ...

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Номер записи: 10
11-02-2015 дата публикации

Nuclear power station perimeter detection early warning analysis method and system

Номер: CN104346907A
Автор: SUN YONGBIN, CHEN WEIHUA, XIAN CHUNYU, ZHANG JIANBO, LI SHUANG, SHU RUI, GU PENGFEI, WU WENFEI, LI XIAOFENG, YE LIN, LI ZHUOJIA, ZHANG JIWEI, DONG XIAOSHENG, SUN WEI, ZHENG TIAN, LIU ZHEN, TIAN YONG
Принадлежит:

The invention discloses a nuclear power station perimeter detection early warning analysis method comprising the steps that nuclear power station perimeter event information is monitored by a front-end monitoring subsystem, and the event information at least comprises nuclear power station perimeter meteorological information; the front-end monitoring subsystem transmits the event information to a background control subsystem via a network transmission subsystem; and the background control subsystem receives the event information and performs early warning analysis according to the event information. The monitored nuclear power station perimeter event information is transmitted to the background control subsystem, and early warning analysis according to the event information is facilitated for the background control subsystem so that nuclear power station perimeter intelligent detection and early warning are realized. Besides, the invention also discloses a nuclear power station perimeter ...

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Номер записи: 11
25-03-2015 дата публикации

Nuclear power station steam turbine power measuring method and system

Номер: CN104464860A
Автор: DONG WEI, DONG XIAOSHENG, GOU XIAOLONG, SHANG JING, TANG HUAXIONG, ZHANG YI, SHI HONGRUI
Принадлежит:

The invention discloses a nuclear power station steam turbine power measuring method which comprises the steps that a steam turbine pressure transmitter measures steam turbine impulse stage pressure, according to a transfer function, the steam turbine impulse stage pressure is converted to a steam turbine load, the transfer function is PTU = A0 + A1(TP) + A2(TP)2, wherein PTU is the steam turbine load, TP is the steam turbine impulse stage pressure, A0, A1 and A2 are experience coefficients, and steam turbine power is obtained according to the steam turbine load. According to the nuclear power station steam turbine power measuring method, instrument features are subjected to verifying through the transfer function, and the problem that errors between measured data and practical data are large is effectively avoided. In addition, the invention further discloses another nuclear power station steam turbine power measuring method and a corresponding system.

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Номер записи: 12
17-12-2014 дата публикации

Nuclear power plant process radiation monitoring method and system

Номер: CN104217774A
Автор: LIU HONGTAO, WANG JIAOYA, SUN YU, LING JUN, ZHOU XINJIAN, WEN XIAOMEI, TIAN YAJIE, DONG XIAOSHENG, LIU GUANGMING
Принадлежит:

The invention discloses a nuclear power plant process radiation monitoring method. The method comprises the steps of acquiring alarm and display data of a radiation monitoring point in real time through a radiation detector; transmitting the alarm and display data to a nuclear power plant DCS via hard wiring through an on-the-spot disposal box; and generating monitoring statistics information of the monitoring point according to the alarm and display data in the nuclear power plant DCS by using a KRT server in the nuclear power plant radiation monitoring system. A comprehensive and reliable nuclear power plant process radiation monitoring processing technology is realized. In addition, the invention also discloses a nuclear power plant process radiation monitoring system.

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Номер записи: 13