Exhausting method and exhausting apparatus for RFD system
An exhaust method and exhaust device technology, which are applied in the field of exhaust devices for maintenance-free fluid delivery equipment (RFD systems), can solve problems such as polluting the ventilation system and safety damage, and achieve the goal of reducing project cost and overall height Effect
Active Publication Date: 2015-05-20
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
However, this safety can be compromised if the working environment changes, i.e. radioactive liquid is sucked out, enters the ventilation system via the vacuum ejector, contaminates the ventilation system
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[0016] The present invention will be described below in conjunction with the accompanying drawings and specific embodiments.
[0017] In the exhaust method of a RFD system of the present invention, the gas discharged from the vacuum ejector 3 is first transported to the upper gas space of the feed tank 5 through the exhaust pipe 4, and then enters the ventilation device 9 through the exhaust pipe 8, or is discharged through the exhaust pipe 8. The trachea 4 is directly delivered to the exhalation tube 8 and enters the ventilation device 9 .
[0018] An exhaust device for an RFD system of the present invention includes a compression ejector 1, a vacuum ejector 3, an exhaust pipe 4 of the vacuum ejector, a transducing cylinder 2, a reversible fluid pump 6, a feed tank 5, a feed The discharge pipe 8 of the tank, the discharge pipe 7 and the exhaust pipeline that connects between the equipment. The vacuum ejector 3 is connected to the transducing cylinder 2 through the compressio...
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The invention discloses an exhausting method and an exhausting apparatus for an RFD system. A vacuum ejector (3) is connected with the upper gas space of a feed tank (5) through an exhaust pipe (4) or is directly connected with an expiring pipe (8) through the exhaust pipe (4); the vacuum ejector carries out suction so as to enable negative pressure to be generated in a transduction cylinder (2) which is connected with the vacuum ejector; material liquid in the feed tank (5) is sucked into the transduction cylinder (2); and gas discharged by the vacuum ejector (3) is firstly delivered to the upper gas space of the feed tank (5) through the exhaust pipe (4) to mingle with gas in the feed tank and then enters into a ventilation unit (9) through the expiring pipe (8), or is directly delivered to the expiring pipe (8) through the exhaust pipe (4) and enters into the ventilation unit (9). If operation conditions change and inherent security of the system is destroyed, the RFD system provided in the invention can overcome the problem that radioactive liquid may contaminate a ventilation system and properly reduce installation height of duel-ejector or total height of an equipment room, thereby reducing construction cost.
Description
technical field [0001] The invention relates to an exhaust device and an exhaust method for a maintenance-free fluid delivery device (RFD system) in the nuclear industry. Background technique [0002] As a maintenance-free fluid delivery system, the reversible fluid pump system (Reveres Fluidic Device hereinafter referred to as RFD) is applied to the delivery of radioactive fluids in reprocessing. [0003] The working process of the RFD system is as follows: the moment the RFD system is started, the vacuum ejector sucks in air, and negative pressure gas is generated in the transducer cylinder, the vapor-liquid interface rises, and the RFD sucks the liquid from the feed tank into the transducer cylinder for energy storage. , the system has no flow output, and the gas discharged from the vacuum ejector enters the ventilation system through the exhaust pipe; when the liquid level reaches the set value, close the vacuum ejector and open the compression ejector at the same time, ...
Claims
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IPC IPC(8): G21C13/02
CPCY02E30/30
Inventor 郭晓方刘华玲储凌谭再跃刘宇高明媛宝音刘斌斌
Owner CHINA NUCLEAR POWER ENG CO LTD