Power supply method for nuclear power plant cold-state function test

A power supply method and technology for nuclear power plants, which can be used in nuclear power generation, nuclear engineering, nuclear reactor monitoring, etc., and can solve problems such as inability to perform cold functional tests.

Active Publication Date: 2012-07-11
中广核工程有限公司 +1
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a power supply method for a nuclear power plant cold function test in view of the defects in the pr

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  • Power supply method for nuclear power plant cold-state function test
  • Power supply method for nuclear power plant cold-state function test

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Embodiment Construction

[0021] In the prior art, two power sources are required to be available when cold-state functional tests are performed in nuclear power plants, that is, the main power source and the auxiliary power source are used together, or the main power source and the emergency diesel engine generator are used together. However, the present invention provides a new power supply method for cold-state function test when the main power supply is unavailable, that is, the cold-state function test is performed by using an auxiliary power supply. First of all, in the prior art, the design of the auxiliary power supply in the power supply system only considers starting the No. 1 main pump, and does not consider starting the No. 2 and No. 3 main pumps. During the test, the technical problems that must be solved are: first, what measures can be taken to run the three main pumps; Emergency start of the pump.

[0022] figure 1 It is the circuit structure diagram of the power supply system used in...

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Abstract

The invention discloses a power supply method for a nuclear power plant cold-state function test. The power supply method for a nuclear power plant cold-state function test comprises the following steps of orderly running three main pumps, carrying out load limit of equipment, wherein the equipment and the main pump which is running are arranged in the same incoming line, starting an equipment cooling water system, an essential service water system and a residual heat removal system of one of alternating current emergency switchboards according to demands, wherein the main pump which is running and the one of the alternating current emergency switchboards are not arranged in the same incoming line, using an auxiliary power supply with two independent outer power grid inlet wires to independently supply power to an A row of the alternating current emergency switchboard and a B row of the alternating current emergency switchboard respectively by auxiliary transformers, using the A row of the alternating current emergency switchboard to supply power to a charging pump 1, using the B row of the alternating current emergency switchboard to supply power to a charging pump 2 and a charging pump 3, and keeping simultaneous running of the charging pump 1 and one of the charging pump 2 and the charging pump 3. The power supply method for a nuclear power plant cold-state function test can realize a cold-state function test when a main power supply is not available.

Description

technical field [0001] The invention relates to the field of debugging of nuclear power plants, in particular to a power supply method for cold-state functional tests of nuclear power plants. Background technique [0002] The pressurized water reactor nuclear power plant is mainly composed of three parts: the pressurized water reactor, the primary loop system and the secondary loop system. Nuclear fission is carried out in a reactor core composed of nuclear fuel within a pressure vessel. Pressurized water reactors use low-enriched uranium as fuel and light water as the coolant and moderator. The heat released by nuclear fission is taken out of the reactor by the high-pressure water flowing through the primary circuit system in the reactor, and the heat is transferred to the water in the secondary circuit in the steamer generator. The steam produced by the heated water drives a steam turbine, which drives a generator to generate electricity. [0003] In order to prevent th...

Claims

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Application Information

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IPC IPC(8): G21C17/104G21C17/112
CPCY02E30/30
Inventor 周创彬龚伯阳张百舸孙怡秦雁枫侯佑胜黄清武毕枫川章松林
Owner 中广核工程有限公司
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