Nuclear power plant waste liquid treatment device performance verification method

Abstract

The invention provides a nuclear power plant waste liquid treatment device performance verification method which comprises the steps: carrying out an orthogonal test design, preparing a feed liquid with a preset boron concentration, and filling the device with the feed liquid; starting a heat pump evaporation device, returning the distillate flowing out of the evaporation tower to the evaporation tower, and discharging and temporarily storing the distillate after the distillate formed by the secondary steam meets a preset discharge requirement; when the concentrated solution reaches a preset discharge requirement, discharging the concentrated solution for temporary storage, and mixing the discharged distillate with the concentrated solution for recycling; sampling the distillate and the concentrated solution at regular intervals and measuring the boron concentration; and then testing feed liquids with different concentrations, and synchronously carrying out comprehensive tests on the evaporation separation decontamination performance, the energy-saving effect, the optimal design parameters and the operation stability of the radioactive waste liquid heat pump evaporation system. The verification method provided by the invention can reduce material liquid waste and equipment cost, shortens the first concentration time, synchronously performs multi-aspect tests, and has higher test efficiency.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant waste liquid treatment, and in particular relates to a performance verification method of a nuclear power plant waste liquid treatment device. Background technique [0002] Nuclear power plants will produce a large amount of boron-containing radioactive waste liquid during normal operation or under accident conditions and maintenance operations, such as process waste liquid, chemical waste liquid and coolant waste liquid, etc. If the boron-containing radioactive waste liquid is discharged directly, it will cause serious harm to the environment. At present, the commonly used waste liquid treatment method in nuclear power plants is to use the common evaporation process to treat the waste liquid. The more advanced treatment method for nuclear waste liquid treatment is heat pump evaporation radioactive waste liquid treatment technology. In recent years, heat pump evaporation has become a ...

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Problems solved by technology

[0012] In order to solve the technical problems of long time-consuming, incomplete verification, insufficient convincing power, waste of resources, and poor economic efficienc

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