Thermal shock testing method and system for pump

Abstract

The invention discloses a thermal shock testing method and a thermal shock testing system for a pump. The method comprises the following steps of system injection, system exhaust, trial running of the tested pump, system pressurization, preheating, pre-cooling and thermal shocking, and is used for performing a thermal shock test on the pump in a cold state by using the thermal shock testing system for the pump. The thermal shock testing system for the pump comprises a chilled water tank, a chiller, a cooling tower, an electric heater, a high-temperature hot water tank I, a high-temperature hot water tank II, an expansion tank, the tested pump, a three-way valve I and a three-way valve II, wherein a regulating valve and an electric valve are arranged on a loop of the tested pump, and are used for controlling the flow of the tested pump; a temperature sensing rod is arranged at an inlet of the tested pump; the expansion tank is connected with the chilled water tank and the high-temperature hot water tank I respectively, and is connected with an air compression device and a nitrogen bottle through a one-way valve. Due to the adoption of the testing scheme, potential safety hazards caused by the fact that the pump is not subjected to the thermal shock test before being produced are avoided.

Description

technical field [0001] The invention relates to a testing method and system, in particular to a pump thermal shock testing method and system for performing thermal shock test on a pump. Background technique [0002] Pumps are widely used in modern industrial technology, and more and more attention has been paid to the safe operation of pumps. Especially in 2011, the earthquake in Japan caused the tsunami, and the nuclear reactor cooling system of the Japanese nuclear power plant failed. While bringing convenience to people’s lives, people should pay more attention to the dangers that may be brought to people under extreme conditions. As the core component of the nuclear reactor cooling system, the quality of the nuclear pump has received great attention. Normal operation is very important. The current manufacturers need to test whether the pump can operate normally when the pump at room temperature suddenly encounters a high-temperature medium; People are worried about it, ...

AI Technical Summary

Problems solved by technology

[0002] Pumps are widely used in modern industrial technology, and more and more attention has been paid to the safe operation of pumps. Especially in 2011, the earthquake in Japan caused the tsunami, and the nuclear reactor cooling system of the Japanese nuclear power plant failed. While bringing convenience to people’s lives, people should pay more attention to the dangers that may be brought to people under extreme conditions. As the core component of the nuclear reactor cooling system, the quality of the nuclear pump has received great attention. Normal operation is very important. The current manufacturers need to test whether the pump can operate normally when the pump at room temperature suddenly encounters a high-temperature medium; People are worried about it, which has brought great potential safety hazards to people's production and life.

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