Hydraulic control device and its mounting method
A technology of a control device and an installation method, which is applied in the control of nuclear reactions, reduction of greenhouse gases, reactors, etc., can solve the problems of delayed construction period, inability to use cranes, and heavy workload.
Inactive Publication Date: 2002-09-11
KK TOSHIBA
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[0020] However, in the prior art described above, when the HCU 10 is installed after the HCU room 9 is completed, other operations must be interrupted in order to move the HCU 10 in, so the construction period is delayed.
[0021] In addition, when installing the HCU10 on site, it takes a lot of work time due to the narrow working space and the inability to use a crane.
In addition, when the nitrogen container 1 is assembled separately from the accumulator 2, the quick shutdown valve 3, the piping, the frame 5, etc., in order to connect the lower end of the nitrogen container 1 to the piping at the lower part of the accumulator 2, a high Accurately align the position, and carry out this adjustment at the construction site, the workload is relatively large, and the operation time is long
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no. 1 Embodiment
[0044] The first embodiment ( Figure 1 to Figure 4 )
[0045] figure 1 It is a structural diagram showing the state in which the HCU of the first embodiment of the present invention is installed in the nuclear furnace house of the boiling water type atomic power plant. figure 2 (A) to (D) are process diagrams showing the assembly procedure of the HCU in the factory. image 3 It is a diagram showing the structure of the HCU after assembly. Figure 4 yes image 3 An enlarged view of the lower portion in the HCU installation state shown.
[0046] Such as figure 1 As shown, the component parts constituting the HCU10 of this embodiment, as the main component parts, include a nitrogen container 1 for storing high-pressure nitrogen, a liquid reservoir 2 for storing high-pressure water, and an instantaneous The rapid shutdown valve 3 and various piping 4 that are opened to release the high-pressure water in the accumulator 2, the piping 4 drives the nitrogen container 1, the...
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PROBLEM TO BE SOLVED: To eliminate a delay factor of a construction stage by eliminating the need to interrupt constructing operation for a building when a hydraulic pressure control unit of a nuclear reactor is carried in. SOLUTION: This unit is equipped with a nitrogen gas container 1 which contains high-pressure nitrogen gas, an accumulator 2 which accumulates high- pressure water, a scram valve 3 which is instantaneously opened when a control rod of a control rod driving mechanism is inserted in emergency to release the high-pressure water in the accumulator, and a piping 3 which connect them as unit members. A wall hardware 20 and floor hardware 21 for installing and fixing the unit members to the longitudinal wall 9a and floor 9 of a hydraulic pressure control unit chamber 9 of a nuclear reactor building are constituted as integrated support hardware 17. This support hardware 17 and unit members are built in one body.
Description
technical field [0001] The present invention relates to a water pressure control device constituting a control rod driving hydraulic system of a boiling water type atomic furnace, a method for installing the water pressure control device in the chamber of the water pressure control device in an atomic furnace room, and the installation of the water pressure control device Boiling water type atomic power plant. Background technique [0002] Below, refer to Figure 7 to Figure 1 2. Describe the conventional water pressure control unit (hereinafter referred to as "HCU") and the installation technology for installing the HCU in the water pressure control unit room (hereinafter referred to as "HCU room"). [0003] Figure 7 It shows the structure of installing the conventional HCU in the HCU room. Such as Figure 7 As shown, as the main components, the HCU10 is equipped with a nitrogen container 1 for storing high-pressure nitrogen gas, and a liquid reservoir 2 for storing hi...
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IPC IPC(8): G21C7/16G21C13/00G21C19/12
CPCY02E30/30
Inventor 今崎善夫柳濑悟郎
Owner KK TOSHIBA