Partitioned simulation method for nuclear power unit condenser

A simulation method and condenser technology, applied in the field of simulation, can solve problems such as inability to differentiate calculations, inability to consider small differences in internal pressures of equipment, inability to reflect thermal parameters at different positions, etc. Effect

Active Publication Date: 2017-03-22
HARBIN ENG UNIV
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Problems solved by technology

The condenser simulation method based on the lumped parameter method cannot take into account the small differences in the internal pressure of the equipment; the existing partition simulation method is partitioned for the axial direction, which can only reflect the flow sequence and cannot reflect the difference in thermal parameters at differ

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  • Partitioned simulation method for nuclear power unit condenser
  • Partitioned simulation method for nuclear power unit condenser
  • Partitioned simulation method for nuclear power unit condenser

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[0041] The present invention will be further described below in conjunction with the drawings.

[0042] Combine figure 1 , The implementation steps of the present invention mainly include:

[0043] (1) According to the simulation object, it can be divided into two types: ordinary condenser and common condenser; according to the form of division, it can be divided into two types: uniform and non-uniform. The specific implementation method is determined as follows:

[0044] a. Aiming at the non-uniform partitioning plan of ordinary condensers, the actual condenser sensor placement position is divided into partitions. The divided partitions include partition (1) steam turbine exhaust area, partition (2) extractor area, and partition (3). ) Hot well area, partition (4) sensor area, partition (5) other shell-side areas except the above areas, partition (6) pipe side circulating water inlet water chamber, partition (7) pipe side circulating water outlet water chamber . In the above area...

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Abstract

The invention provides a partitioned simulation method for a nuclear power unit condenser. The method comprises the steps of (1), partitioning simulation objects, wherein the simulation objects comprise general condensers and shared condensers, and partitioning comprises uniform partitioning and non-uniform partitioning; (2), inputting structure sizes, physical properties, boundary parameters and calculation initial values of the condensers; (3), carrying out thermal-transfer calculation on one-to-one correspondence partitions at a shell side and a pipe side; (4), carrying out thermal parameter calculation; and (5), outputting a simulation result. Compared with an actual device, the simulation model established by the method has the advantages that the output data under steady state and transient state condition can satisfy a device simulation precision demand, and the operation characteristic research can be carried out through utilization of the simulation method.

Description

technical field [0001] The invention relates to a simulation method, in particular to a simulation method for a condenser of a nuclear power plant. Background technique [0002] The nuclear power plant condenser is one of the main equipment in the secondary circuit, responsible for condensing the wet steam that has done work in the steam turbine into condensed water, and transferring the heat released by the condensation to the circulating water. The condenser used in nuclear power plants is divided into two parts, the shell side and the tube side, which are physically separated by heat exchange tubes. The steam and other steam discharged from the steam turbine unit, because the temperature is higher than the temperature of the outer wall of the heat transfer tube, heat exchange occurs, and the latent heat of vaporization is released through liquefaction, and the heat is transferred to the outer wall of the heat exchange tube; because the temperature of the outer wall of the...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20G06F2119/08
Inventor 薛若军孙觊琳彭敏俊张志俭
Owner HARBIN ENG UNIV
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