The role of mine wear-resistant multistage pump in process control is to accept the control signal of the regulator or computer, change the flow of the medium to be adjusted, and maintain the adjusted parameters within the required range, thus achieving automation of the production process. If the automatic adjustment system is compared with the manual adjustment process, the detection unit is the human eye, and the adjustment control unit is the human brain, then the execution unit-mineral wear-resistant multistage pump is the human hand and foot. To achieve the adjustment and control of certain parameters of the process such as temperature, pressure, flow, liquid level, etc., it is inseparable from mine wear-resistant multi-stage pumps. Therefore, the correct choice of mine wear-resistant multistage pumps is of great significance in process automation.
The mine wear-resistant multistage pump, also known as the control pump, is the main type of actuator. By accepting the control signal output from the control unit, the fluid flow is changed by the power operation. Mine wear-resistant multistage pumps are generally composed of actuators and valves. If the power used by the actuator is matched, the mine wear-resistant multistage pump can be divided into three types: pneumatic, electric and hydraulic, namely pneumatic pneumatic wear-resistant multistage pump with compressed air as the power source. Electric power wear-resistant multi-stage pump for power source, electro-hydraulic wear-resistant multi-stage pump powered by liquid medium (such as oil), in addition, according to its function and characteristics, there are solenoid valves, electronics Type, intelligent, field bus type mine wear-resistant multi-stage pump. Mine wear-resistant multistage pumps have many types of products, a wide variety of structures, and are constantly being updated and changed. Valves are generally versatile and can be matched to pneumatic actuators or to electric actuators or other actuators.
Regardless of the type of actuator, its output force is the effective force to overcome the load (mainly refers to the unbalanced force and unbalanced torque plus the friction, sealing force, gravity and other related forces). Therefore, in order to make the mine wear-resistant multistage pump work normally, the actuator used should be able to generate enough output force to overcome various resistances and ensure high sealing and opening of the valve. For double-acting pneumatic, hydraulic, and electric actuators, there is generally no return spring. The magnitude of the force is independent of its direction of travel. Therefore, the key to selecting an actuator is to clarify the maximum output force and the rotational torque of the motor. For single-acting pneumatic actuators, the output force is related to the opening of the valve. The force appearing on the mine wear-resistant multistage pump will also affect the motion characteristics. Therefore, it is required to establish the opening range of the entire mine wear-resistant multistage pump. Balance of force.
