Drilling Pump Liquid Cylinder Pressure Law And Simulation

It is very important to calculate the hydraulic performances of the pump for the design of the mud pump. It has been proved that hydraulic performances of the mud pump would be greatly improved when the mud pump was assembled with air chamber on the suction pipe, however, there's no any theoretical analysis on the rule of the fluid pressure inside the hydraulic cylinders when the mud pump was assembled with air chamber on the suction pipe in our nation.The article mainly had a research on the pressure rule inside the hydraulic cylinders when the mud pump has been assembled with air chamber on the suction pipe and stack pipe. It had used the Bernoulli's equation to set up the mathematical model to reflect the height variation of the liquid inside the air chamber on the suction pipe when the mud pump is in work, and simulated the model by Matlab. It had also acquired the rule of the liquid velocity inside the main suction pipe when the mud pump has been assembled with air chamber on the suction pipe. It had simply analyzed the degree of the effect that the parameters of the air chamber and the main suction pipe have on the liquid velocity inside the main suction pipe.On this base, It had acquired the rule of the pressure rule inside the hydraulic cylinders, which would offer the foundation to value the hydraulic performances of the pump. It had simply analyzed the degree of the effect that the parameters of the air chamber and the main suction pipe have on the pressure rule inside the hydraulic cylinders. It had managed to seek the reasonable velocity that satisfy hydraulic performances by itself.It had also used the Bernoulli's equation to set up the mathematical model to reflect the flow variation of the liquid inside the air chamber on the stack pipe when the mud pump is in work, and simulated the model by Matlab, and then acquired the pressure rule inside the hydraulic cylinders in the stack condition.The theoretical model set up and the simulation in the article have been approved by the related research centre, so that be relative of practical values.