Guangdong, China

China General Nuclear Power Group , formerly China Guangdong Nuclear Power Group , is a major clean energy corporation under the SASAC of the State Council.CGN has operating nuclear plants at Daya Bay Nuclear Power Plant, Ling Ao Nuclear Power Plant, Hongyanhe Nuclear Power Plant and Ningde Nuclear Power Plant, with five new nuclear power stations under construction and another 2 planned.CGN operates in other emerging energy industries like wind energy and solar energy, as well as more traditional industries like hydroelectricity. As of 2014 CGN operates power generation plant of the capacity: nuclear 8.3 GW, wind 4.7 GW, hydro 4.0 GW and solar 600 MW. Wikipedia.


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Patent
China Nuclear Power Engineering Co. and China General Nuclear Power Group | Date: 2016-10-11

The present invention provides a compound mobile communication method for a nuclear power plant, including the steps of: receiving a communication signal sent by a base station in a restricted area or an unrestricted area, the communication signal including a coded-modulation optical signal and/or an electromagnetic wave signal; judging the communication signal received; and reducing transmission power or not transmitting the electromagnetic wave signal if the communication signal is a coded-modulation optical signal or a wireless electromagnetic wave communication signal sent by a base station in the restricted area. The compound mobile communication method for a nuclear power plant of the present invention can meet the requirements of mobile communication in special places without electromagnetic interference. The present invention also provides a compound mobile communication terminal and system for a nuclear power plant.


Patent
China Nuclear Power Engineering Co., Tsinghua University and China General Nuclear Power Group | Date: 2017-01-04

The present invention provides a method for producing B4C/Al neutron-absorbing material sheet by continuous cast rolling including the steps of: 1) providing B4C particles and aluminum matrix melt, adding the B4C particles into the aluminum matrix melt while stirring the composite of the B4C particles and the aluminum matrix melt; 2) applying an electromagnetic field to the B4C particle-containing aluminum matrix melt passing through a headbox; 3) applying an ultrasonic vibration to the B4C particle-containing aluminum matrix melt passing through a casting nozzle; and 4) conducing twin roll continuous cast rolling on the B4C particle-containing aluminum matrix melt from the casting nozzle to obtain B4C/Al neutron-absorbing material sheet. The method of the present invention uses twin roll continuous cast rolling under coupled ultrasonic and electromagnetic oscillation to rapidly cool and refine the grains of the solidified composite material and realize uniform distribution of B4C particles in the aluminum matrix.


Patent
China Nuclear Power Engineering Co. and China General Nuclear Power Group | Date: 2017-02-15

The present invention provides a compound mobile communication method for a nuclear power plant, including the steps of: receiving a communication signal sent by a base station in a restricted area or an unrestricted area, the communication signal including a coded-modulation optical signal and/or an electromagnetic wave signal; judging the communication signal received; and reducing transmission power or not transmitting the electromagnetic wave signal if the communication signal is a coded-modulation optical signal or a wireless electromagnetic wave communication signal sent by a base station in the restricted area. The compound mobile communication method for a nuclear power plant of the present invention can meet the requirements of mobile communication in special places without electromagnetic interference. The present invention also provides a compound mobile communication terminal and system for a nuclear power plant.


Patent
CGN Inspection Technology Company, Suzhou Nuclear Power Research Institute, China General Nuclear Power Group and CGN Power Co. | Date: 2017-04-05

The present invention discloses a nondestructive inspection robot for a pressure vessel (1) of a nuclear reactor and an inspection method thereof. The robot comprises a plurality of support legs (22), a plurality of mechanical arms (25a, 25b, 25c, 25d), and a main rotary joint (23); two ends of each support leg (22) are respectively connected onto a stand column assembly (21) and the pressure vessel (1) so that the central axis of the stand column assembly (21) and the axis line of the pressure vessel (1) coincide with each other; the plurality of mechanical arms (25a, 25b, 25c, 25d) are provided with a plurality of probe assemblies (24a, 24b, 24c, 24d) for scanning respective components; the main rotary joint (23) is rotatably connected to a lower part of the stand column assembly (21) about the axial direction of the stand column assembly (21); a second mechanical arm (25b) is rotatably connected to the main rotary joint (23) about a direction perpendicular to the axial direction of the stand column assembly (21) by means of a swinging joint (26), and other mechanical arms are detachably connected to the main rotary joint (23).


Patent
CGNPC Inspection Technology Co., Suzhou Nuclear Power Research Institute and China General Nuclear Power Group | Date: 2016-08-24

An intelligent testing method of a non-destructive testing robot based on virtual reality technology, the method comprises the following steps:(1) a non-destructive testing robot for a non-destructive test is installed to a preset position inside the reactor pressure vessel;(2) the position calibration of each degree-of-freedom movement axis is performed after each degree-of-freedom movement axis of the non-destructive testing robot is recovered to an initial state, and a global coordinate system and an axle coordinate system of each degree-of-freedom movement axis are constructed;(3) a corresponding relationship between the simulation model and the actual device;(4) the non-destructive testing robot simulation model transform the position and posture in three-dimension virtual environment on basis of the real-time position and posture information feedback values of each degree-of-freedom movement axle of the non-destructive testing robot acquired thereby, and synchronous movement of the non-destructive testing robot is virtually displayed and controlled for a non-destructive test.


Patent
China Nuclear Power Technology Research Institute and China General Nuclear Power Group | Date: 2016-10-26

A bottom nozzle (100) includes a skirt (10), support blocks (20), transverse blades (30) and longitudinal blades (40). The skirt (10) is a hollow structure and a bottom thereof is provided with corner legs (11) which are protruded downwards, a cavity is defined in the hollow structure, the transverse blades (30) are configured in the cavity, the longitudinal blades (40) are configured in the cavity, the transverse blades (30) and longitudinal blades (40) are firmly connected with the skirt (10), projections of the transverse blades (30) and the longitudinal blades (40) in a level plane are intersectant to form interleaved grids, and the support blocks (20) run through and are fixed on the transverse blades (30) and the longitudinal blades (40). In such a way, the bottom nozzle (100) forms a three-dimensional gridded water passage, thereby improving the filter capacity and generating small water pressure drop.


Patent
China Nuclear Power Engineering Co. and China General Nuclear Power Group | Date: 2014-10-01

A special purpose mobile communication terminal is provided. The special purpose mobile communication terminal includes: a receiver unit, configured to receive a first mobile communication signal and a second mobile communication signal respectively transmitted from base stations in a restricted area and an unrestricted area; and a control unit, configured to judge the mobile communication signals received by the receiver unit, the control unit being configured to reduce a transmitting power or not transmit an electromagnetic signal if the first mobile communication signal is received and a signal strength of the first communication signal is greater than a predetermined threshold value, and the control unit being configured to transmit an electromagnetic signal if the signal strength of the first mobile communication signal is less than the predetermined threshold value and the second mobile communication signal is received.


Patent
China Nuclear Power Engineering Co., Tsinghua University and China General Nuclear Power Group | Date: 2016-07-27

The present invention provides a method for producing B4C/Al neutron-absorbing material sheet by continuous cast rolling including the steps of: 1) providing B4C particles and aluminum matrix melt, adding the B4C particles into the aluminum matrix melt while stirring the composite of the B4C particles and the aluminum matrix melt; 2) applying an electromagnetic field to the B4C particle-containing aluminum matrix melt passing through a headbox; 3) applying an ultrasonic vibration to the B4C particle-containing aluminum matrix melt passing through a casting nozzle; and 4) conducing twin roll continuous cast rolling on the B4C particle-containing aluminum matrix melt from the casting nozzle to obtain B4C/Al neutron-absorbing material sheet. The method of the present invention uses twin roll continuous cast rolling under coupled ultrasonic and electromagnetic oscillation to rapidly cool and refine the grains of the solidified composite material and realize uniform distribution of B4C particles in the aluminum matrix.


Patent
Nuclear Power Institute of China and China General Nuclear Power Group | Date: 2014-01-13

A nuclear power plant containment cooling system and a spray flow control method therefor. The system comprises a cooling system liquid tank (2) for storing cooling liquid, wherein the cooling system liquid tank (2) is provided at the top of a containment (1) and the cooling liquid is used for cooling the containment (1) through the gravity of the cooling liquid itself in the situation of an accident, and the cooling liquid is partially evaporated. The nuclear power plant containment cooling system further comprises an adjustment mechanism; wherein the adjustment mechanism is provided at a liquid outlet of the cooling system liquid tank (2), and the adjustment mechanism is used for controlling the flow at the liquid outlet according to buoyancy generated by a liquid level of the collected cooling liquid which is not evaporated.


Patent
China Nuclear Power Engineering Co. and China General Nuclear Power Group | Date: 2016-04-06

A special purpose mobile communication terminal is provided. The special purpose mobile communication terminal includes: a receiver unit, configured to receive a first mobile communication signal and a second mobile communication signal respectively transmitted from base stations in a restricted area and an unrestricted area; and a control unit, configured to judge the mobile communication signals received by the receiver unit, the control unit being configured to reduce a transmitting power or not transmit an electromagnetic signal if the first mobile communication signal is received and a signal strength of the first communication signal is greater than a predetermined threshold value, and the control unit being configured to transmit an electromagnetic signal if the signal strength of the first mobile communication signal is less than the predetermined threshold value and the second mobile communication signal is received.

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