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A method of operating a voltage stabilizer electric heater

A technology of electric heaters and operation methods, applied in nuclear power generation, thermal reactors, non-uniform reactors, etc. The problems such as the unbalanced cumulative running time of electric heaters have achieved the effect of convenient implementation, improved utilization, and reduced processing costs.

Active Publication Date: 2021-11-09
JIANGSU NUCLEAR POWER CORP
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AI Technical Summary

Problems solved by technology

[0010] To sum up, the accumulative operating time of the electric heaters in the long-term group and the electric heaters in the short-term group is severely unbalanced, and the comprehensive utilization rate is low, and the electric heaters in the long-term group fail in actual operation due to the over-life operation of the electric heaters in the long-term group significantly higher rate

Method used

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  • A method of operating a voltage stabilizer electric heater
  • A method of operating a voltage stabilizer electric heater
  • A method of operating a voltage stabilizer electric heater

Examples

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Embodiment 1

[0064] The regulator is 13.48 meters high, a columnar tank having a diameter of 3 meters, a total of 28 electric heater. The regulator electric heater is divided into two layers, 14 uniform distributed per layer in the bottom of the regulator. The lower layer is 1.5 meters, and the upper distance is 2 meters.

[0065] like image 3 As shown, 28 regulators are divided into four intervals in the planar space, and the 8th regulator electric heater is divided into four regions, and 7 regulators of each interval are electrically reinforced. The electric heater is in the lower layer, the regulator electrical heater of the solid line marked is in the upper layer.

[0066] 1 regulator electric heater is selected, and the group is marked as "1", which constitutes Group 1. One regulator electric heater is selected for each interval, and the group is marked as "2", which constitutes a second group. The regulator electrical heater of each interval is marked, each of which includes a seven regu...

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Abstract

The invention relates to the technical field of nuclear power plant electrical maintenance, in particular to an operation method of an electric heater for a voltage stabilizer. The operation method is as follows: the voltage stabilizer electric heater is divided into several intervals on average, and one electric heater is selected from each interval to form a group, forming a group W; in the first cycle, a group of voltage stabilizer is selected Electric heaters are marked as long-term group electric heaters, and other groups of regulator electric heaters are marked as short-term group electric heaters; in the 1+M cycle, select a group that has not been marked as long-term group electric heaters The electric heaters of the voltage regulators are marked as long-term group electric heaters in the 1+M period, and the electric heaters of other groups of voltage regulators are marked as short-term group electric heaters; when a group of voltage regulator electric heaters is marked Once used as a long-term group electric heater and W-1 time as a short-term group electric heater, replace the group of regulator electric heaters. The operating method improves the utilization rate of the electric heater of the voltage stabilizer and reduces the failure rate.

Description

Technical field [0001] The present invention relates to the technical field of electrical maintenance of nuclear power plants, in particular, it relates to a method for operating an electric heater regulator. Background technique [0002] Reactor Plant regulator is a key loop pressure maintenance apparatus stocked with aqueous two-phase (water and steam). During normal operation of nuclear power plants, gas and water in the liquid state of dynamic equilibrium, i.e., the pressure regulator is equal to the average temperature of the coolant water saturation vapor pressure 310 ℃. And stable within the pressure regulator, the regulator and the spray valve is to rely on electric heater timely dynamic control. [0003] Voltage regulator electric heater typically divided into two evenly distributed at the bottom of the regulator, about 1.5 m from the bottom of the lower layer, the upper layer of about 2 m from the bottom. At present, the electric heater regulator fixed logic, fixed oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C1/09
CPCG21C1/09Y02E30/30
Inventor 李洪伟徐霞军郭莉侠王雄辉张志国石岩王亚东翁铖忠吴东方王镜淇张雅文司旭东
Owner JIANGSU NUCLEAR POWER CORP
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