Control rod water drive loop and control rod drive line
A driving circuit and control rod technology, applied in the field of control rod water pressure driving circuit and control rod driving line, can solve the problem of inconvenient maintenance of the driving circuit, and achieve the effect of precise adjustment
Active Publication Date: 2020-11-24
TSINGHUA UNIV
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Problems solved by technology
[0004] The embodiment of the present invention provides a control rod hydraulic drive circuit and a control rod drive line, which are used to solve the problem of inconvenient maintenance of the drive circuit of the built-in control rod drive line in the prior art, and realize that the drive circuit can meet the requirements of differential pressure and flow adjustment, The purpose of using requirements such as equipment maintenance and pressure vessel pressure boundary accident isolation
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[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0023] In the description of the present invention, it should be noted that the terms "installation", "connected" and "connected" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be a mechanical connection ...
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The invention relates to the field of nuclear reactor projects and provides a control rod water drive loop and a control rod drive line. The control rod water drive loop comprises an isolating valve,a first drive branch, a second drive branch and a backflow branch. An inlet of the isolating valve is connected with a throat contracted pipe which penetrates through the pressure boundary of a pressure container. An outlet of the isolating valve is simultaneously connected with an inlet of the first drive branch and an inlet of the second drive branch. An outlet of the first drive branch and an outlet of the second drive branch are simultaneously connected with a combined valve of a control rod drive device. One end of the backflow branch is simultaneously connected with an outlet of the first drive branch and an outlet of the second drive branch, and the other end of the backflow branch is simultaneously connected with an inlet of the first drive branch and an inlet of the second drive branch. The control rod water drive loop achieves the purpose of providing matched differential pressure and flow for operation of the control rod drive line and has the advantages that the first drivebranch and the second drive branch can be alternatively used, and equipment maintenance, pressure container pressure boundary accident isolation and other demands are met.
Description
Technical field [0001] The invention relates to the field of nuclear reactor engineering, in particular to a control rod hydraulic drive circuit and a control rod drive line. Background technique [0002] In the prior art built-in control rod drive technology, its drive mechanism is placed in the high temperature, high pressure and irradiation environment in the reactor pressure vessel, and three hydraulic cylinders are used for lifting, transferring and clamping in order to drive transmission and clamping. The movement of the pin-claw mechanism realizes the functions of step-up, step-down and drop of the control rod. [0003] Based on the working principle of the drive mechanism and the characteristics and operating experience of the built-in control rod drive line of the advanced integrated small water reactor, it is necessary to provide the built-in control rod drive line to match the differential pressure and flow rate to realize drive parameter adjustment, equipment maintenanc...
Claims
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IPC IPC(8): F15B13/02F15B21/00F15B21/041F15B19/00G21C7/16
CPCF15B13/021F15B19/00F15B21/008F15B21/041F15B2211/615F15B2211/855G21C7/16Y02E30/30
Inventor 薄涵亮赵陈儒熊威秦本科
Owner TSINGHUA UNIV