Electric ball valve applied to high-temperature gas cooled reactor
A technology for electric ball valves and high-temperature reactors, which is applied to valve details, valve devices, valve housing structures, etc., can solve problems such as difficulty in meeting long-term operation requirements, and achieve good sealing effects and easy installation
Active Publication Date: 2013-12-25
CHINERGY CO LTD
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Problems solved by technology
Chinese invention patent CN102606760A "Nuclear primary electric ball valve" discloses a fixed top-mounted nuclear primary electric ball valve applied to pebble bed high-temperature reactors, and its sleeve-type valve seat adopts polyether sulfone ketone imported from abroad The sealing material and the valve stem adopt multiple sealing methods to meet the sealing requirements of the internal leakage rate and external leakage rate of helium at 260°C, but due to the wear of the dynamic seal, thermal aging and dryness of the packing, it is difficult to meet the gas lift in the fuel loading and unloading system. Long-term operation requirements of helium seal under repeated opening and closing of pipeline valves such as atmosphere switching and pulse air flow
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[0043] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0044] figure 1 It shows the front view of an embodiment of the pebble bed high temperature reactor electric ball valve involved in the present invention; figure 2 is a partial enlarged view of the embodiment; image 3 It is the structure diagram of the valve ball of the embodiment. Such as Figure 1 ~ Figure 3 As shown, the electric ball valve is composed of a valve body 6 , a left valve seat assembly 7 , a valve ball 13 , a right valve seat assembly 12 , a magnetic drive 3 and an electric device 1 . The valve ball 13 is composed of a lower valve stem 26 , a ball 27 and an upper valve stem 36 . The valve body 6 is an integrally processed part, which can be a forging or a casting. The inner cavity of the valve bod...
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The invention relates to the technical field of valves, in particular to an electric ball valve applied to a high-temperature gas cooled reactor. The electric ball valve comprises a valve body, a left valve seat assembly, a valve ball, a right valve seat assembly, a magnetic sensor and an electric device, wherein the valve body is an integrally processed part; the valve ball is mounted through the upper part of an inner cavity of the valve body; the left valve seat assembly and the right valve seat assembly are mounted from two sides of a through hole of the valve body; when the valve is in an opening state, a valve body left runner, a left valve seat assembly through hole, a ball body through hole, a right valve seat assembly through hole and a valve body left runner are coaxial and equal in diameter. According to the electric ball vale adopting the technical scheme provided by the invention, the long-time reliable sealing of the hot radioactive helium atmosphere can be met; in addition, the electric ball valve is convenient to assemble and maintain.
Description
technical field [0001] The invention relates to a ball valve, in particular to a magnetically driven electric ball valve. The invention is suitable for the connection and cut-off control of the hot dust-containing helium gas in the pipeline system of the high-temperature gas-cooled reactor. Background technique [0002] The pebble bed high-temperature gas-cooled reactor uses spherical fuel elements to pass through the core multiple times to achieve non-stop continuous operation. Directional transportation of materials and loading involves two kinds of ball flow pipelines, downlink and uplink. The former relies on gravity flow, and the latter relies on pneumatic transportation. No matter in the stack or in the fuel handling system, the contact, collision and friction between the spherical elements and between the spherical elements and the metal may generate dust, even debris or debris, due to carrying radioactive dust and debris As a carrier gas, helium has certain radioac...
Claims
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Login to View More IPC IPC(8): F16K5/06F16K5/08F16K31/02F16K27/06
Inventor 张海泉王鑫张作义聂君锋李红克刘继国董玉杰
Owner CHINERGY CO LTD