Working principle of mud pump:
Mud pump is a kind of reciprocating pump, the principle of which is the same as the general reciprocating pump.
When working, the power machine through the belt, drive shaft, drive shaft and gear transmission parts fixed on the rotating crank. From the horizontal position when the crank is rotated counter clockwise from left to right, the piston moves to the end of dynamic, liquid cylinder pressure decreases gradually and the formation of a vacuum suction tank, the liquid in the liquid under pressure, open the suction valve into the cylinder, until the piston moves to the right end point. This process is referred to as the pump suction process. The finished after the suction process continues to rotate in the counterclockwise direction, then the piston begins to end torque (pictured left), a liquid cylinder by liquid extrusion. The pressure increases, the suction valve is closed, the discharge valve is opened, the liquid into the discharge pipe, until the piston moves to the left end point. This process is called the discharge process of the pump. With the continuous operation of the power machine, reciprocating pump repeated suction and discharge process, will suck the liquid in the tank through the discharge tube Everfount sent to the bottom.
The distance that the piston moves in the liquid cylinder is called the stroke length of the piston. The number of times the piston moves back and forth is called a stroke of the piston.
Classification of mud pump :
There are many types of mud pump, classification methods are not the same, summed up roughly the following:
1. According to the number of liquid cylinder is divided into two cylinder pump, three cylinder pump, etc..
2. According to a piston in the hydraulic cylinder in a reciprocating suction or discharge liquid suction or discharge times, once known as the single action pump; suction or discharge two times is called double acting pump.
3. According to the arrangement of the liquid cylinder and mutual position, there are horizontal pump, vertical pump, V pump and Star pump, etc..
4. According to the piston style is divided into the piston pump, piston pump, etc..
Because the liquid is usually drilling fluid, the mud pump is used to be called the drilling pump.
At present, the drilling pump used in well construction is mainly three cylinder single action and double cylinder double acting horizontal piston pump.
