Heating?Cooling?Fermentation tank safety valve working principle

Heating?Cooling?[Fermentation tank safety valve] working principle

I. Working principle of the safety valve of fermenter (heating type)

Temperature regulating valve is based on the liquid can not be extended and expansion and contraction of the reason to stop working.Heating independent temperature modulation valve, when accused of tool temperature below the set temperature, the temperature inside the package liquid, edify the actuator force on the push rod is reduced, the valve core components in the spring force of tonics to make the valve opened, increase the flow of steam and hot oil heating media, make accused of tool temperature picks up, until it is accused of tool temperature to the set value, the valve closed, the valve is closed,When the temperature of the controlled tool drops, the valve is opened again, the heating medium enters the thermal reformer and the temperature rises again, so that the temperature of the controlled tool is constant.The size of the valve opening is independent of the difference between the actual temperature of the controlled tool and the set temperature.

2, Fermentation tank safety valve working principle (cooling type)

The working principle of the independent temperature regulating valve for cooling can refer to the independent temperature regulating valve for heating. Only when the spool component is opened and closed under the influence of the actuator and the spring force, it is similar to the temperature closing valve. The cold medium is passed in the valve body, and it is mainly used for temperature control in the cooling place.

3. The working principle of the safety valve of fermenter

After the controlled medium is input into the valve, the pressure P before the valve is input into the lower membrane chamber through the control pipeline, and the pressure PS is input into the upper membrane chamber through the waste serval valve. The difference between P and PS is △ PS =P - PS is called the effective pressure.P a fumigation in the diaphragm on the attack of thrust and PS fumigation in the diaphragm on the attack of thrust difference and spring counterforce balance affirms the relative position of the valve core and valve seat, thus affirming the flow through the valve.When the flow through the valve increases, that is, △ PS increases, the result of P, PS separation, the film chamber, so that the spool to the valve seat target target move, thus tampering with the spool and valve seat between the difficult area, so that PS increase,The thrust of the improved PS on the diaphragm combined with the spring reaction and the thrust of the P on the diaphragm are balanced in the new position to achieve the target of the controlled flow.