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An emergency operation device and method for stirring equipment in a nuclear power plant

A technology for mixing equipment and emergency operation, which is applied in the field of emergency treatment of power failure of nuclear power plant equipment, and can solve problems such as failure of normal function of mixing equipment, dry hardening of radioactive materials, and inability for operators to approach

Active Publication Date: 2017-08-15
中广核工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the event of a power failure or failure of the electronic control system, if the radioactive material in the mixing vessel 1 cannot be quickly discharged, the radioactive material will soon dry up and harden, causing the normal function of the mixing device to fail
In addition, due to the radioactive waste in the mixing equipment, it is not suitable for the operator to be close to the

Method used

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  • An emergency operation device and method for stirring equipment in a nuclear power plant
  • An emergency operation device and method for stirring equipment in a nuclear power plant
  • An emergency operation device and method for stirring equipment in a nuclear power plant

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Effect test

Embodiment 1

[0071] Please refer to Figure 2A or Figure 2B The embodiment of the present invention provides an emergency operation device for stirring equipment in a nuclear power plant. The stirring equipment 1 includes a stirring container 11, a stirring paddle shaft 12, a discharge valve 13 and a stirring paddle 14 connected to the stirring paddle shaft 12. The emergency operation device includes: the remote transmission device 3 of the discharge valve and the remote transmission device 4 of the stirring paddle shaft; among them,

[0072] One end of the discharge valve remote transmission device 3 is connected to the discharge valve 13 of the stirring device 1, and the other end of the discharge valve remote transmission device 3 is provided with a discharge valve handwheel operating device 31; The isolation wall 21 of the plant where the equipment 1 is located is radioactively isolated from the mixing equipment 1;

[0073]One end of the stirring paddle shaft remote transmission dev...

Embodiment 2

[0106] Based on the same invention concept, please refer to Figure 12 , the embodiment of the present invention also provides an emergency operation method for the stirring equipment of a nuclear power plant, which is used to quickly discharge the radioactive materials in the stirring equipment 1 through remote operation when the stirring equipment 1 is powered off or the electric control system fails, wherein , the stirring device 1 comprises a stirring container 11, a stirring paddle shaft 12, a discharge valve 13 and a stirring paddle 14 connected with the stirring paddle shaft 12, and the emergency operation method comprises the following steps:

[0107] S1. When the stirring device 1 is powered off or the electric control system fails, the discharge valve 13 is opened through the remote transmission device 3 of the discharge valve, so that the radioactive material in the stirring container 11 is under the action of gravity self-discharge;

[0108] S2. The stirring paddl...

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Abstract

The invention discloses an emergency operation device and method for stirring equipment in a nuclear power plant, which solves the current technical problem of lacking a solution for quickly discharging radioactive materials in a stirring container of a nuclear power plant when the power is cut off or the electric control system fails. The emergency operation device includes the remote transmission device of the discharge valve and the remote transmission device of the stirring paddle shaft; when the power is cut off or the electric control system fails, the remote transmission device of the discharge valve is used to drive the discharge valve of the stirring container to open or close; the stirring paddle The shaft remote transmission device is used to drive the stirring paddle connected to the paddle shaft to reverse, so as to squeeze out the residual radioactive material from the stirring container. cleaning. Furthermore, in the event of a power failure or failure of the electronic control system, the radioactive material in the stirring container can be quickly discharged by remotely operating the rotation of the stirring paddle shaft and the opening and closing of the discharge valve.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant equipment power failure emergency treatment, in particular to an emergency operation device and method for nuclear power plant stirring equipment. Background technique [0002] Nuclear power plant mixing equipment is the core equipment for cement solidification of waste resin, concentrated liquid and other medium and low radioactive waste generated by nuclear power plants. like figure 1 As shown, the stirring equipment includes: a stirring container 1, a stirring paddle shaft 2 erected in the stirring container 1, a stirring paddle 3 connected to the stirring paddle shaft 2, and a discharge port 4 arranged at the bottom of the stirring container 1; wherein, the stirring container 1 is used to contain radioactive waste, cement formula for curing, etc., and the stirring paddle shaft 2 is used to drive the stirring paddle 3 to stir the materials in the container 1 during the cement curin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F15/00B01F15/02B01F7/18
Inventor 张峰刘彦章杨锦春任宪常何英勇丁颖林一山戈永军马少俊王婕
Owner 中广核工程有限公司