Harm about the phenomenon of concrete pump hydraulic system heat
Concrete pump hydraulic system of fever, directly affects the normal work of the concrete pump, heating phenomenon caused harm, mainly include the following:
(1) raise the temperature of working fluid, make work the viscosity of the liquid drops, the leakage of the pump increases, the actual flow of the pump have fallen;
(2) hydraulic system and components of seal under the high temperature metamorphic, elastic degeneration ability lower, lower the sealing performance, even seal failure, leakage increase;
(3) the work the viscosity of the liquid drop, lower the lubrication performance of the working fluid, the abrasion of hydraulic components, accelerated the wear failure of components, shorten the service life of the components;
(4) when the valve core of hydraulic valve, the valve body material, thermal expansion coefficient at the same time, the different between valve core and valve body by thermal expansion valve core is jammed phenomenon, the concrete pump can work.
In order to avoid the occurrence of the phenomenon, some concrete pump in use after a certain period of time, had to stop to make the system cooling, which reduces the concrete pump, is analyzed.the influence the construction progress.Fever, therefore, should be aimed at system reason, adopt corresponding measures to control the temperature of the hydraulic system, to ensure the normal use of concrete pump.
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