Liquid level transmitter and bubble water level of boiler control system

In the normal operation of boiler, steam drum water level is an important variable, it directly affects the quality of the steam and the safety of the boiler. Water level is too low, when the load is very big, vaporizing speed quickly, the liquid will vaporize all inside the drum, lead to boiler burn dry and even lead to an explosion; Water level is too high will affect the separation of steam drum, produce steam liquid phenomenon, reduce the steam quality and yield, serious when subsequent damage to equipment. Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer figure 1 -

2 for boiler drum water level control system schematic diagram, as shown in figure I a 3 for boiler drum water level control system schematic diagram ( Figure, the symbolic function of automation device, check the appendix table 1) 。 Control process is as follows: Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the boiler steam drum water level control system analysis, the general process control system is composed of controlled object, measuring transmitter, controller and the control valve of four basic link. The measurement transmitter, controller and the control valve is automatic control equipment, process control system can be seen as the controlled object and automatic control device of two parts. Magnetic flap Vpq | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 1) Controlled object. It is the main part of the control system, in the automatic control system, is refers to the need to control the process variables of production equipment or machine. Magnetic flap Vpq | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 2) Measuring transducer. Usually includes detecting element and the transmitter. Its role is to be controlled quantities detected translates into standard unified signal between the industrial instrument. For example, the temperature transducer is convert temperature signal into electrical signal. Magnetic flap Vpq | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 3) The controller. Its role is to measured values compared with the target value deviation, according to certain rule after operation on the control valve ( Enforcement agencies) A corresponding control signals or instructions. Magnetic flap Vpq | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 4) Actuators. Known as actuators. Its effect is based on a control signal from the controller or instructions, change control, control of the controlled object directly. Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

click return to homepage Vpq magnetic flap thermometer thermometer factory | | glass thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Vpq magnetic flap | | glass thermometer thermometer floating ball thermometer | | double color glass thermometer thermometer