Hydrophobic pneumatic valve how to choice?

. Hydrophobic pneumatic valve choice: choose hydrophobic pneumatic valve, according to the equipment per hour of steam consumption multiplied by the ratio - Times for maximum condensation water, to select the hydrophobic displacement of pneumatic valve. To ensure that hydrophobic pneumatic valve to discharge the condensate as soon as possible, while driving rapidly raise the temperature of heating equipment. Hydrophobic pneumatic valve discharge energy is not enough, will cause the condensate can not discharge in time, reduce the thermal efficiency of heating equipment. ( When the steam heating equipment started to steam as equipment is cold, internal air, need the air to the hydrophobic pneumatic valve discharge quickly, to a large number of low temperature condensate, the device gradually heat up, then the equipment into the normal working condition. Because while driving, a large number of air and low-temperature condensate, low inlet pressure, the hydrophobic pneumatic valve overload operation, the hydrophobic pneumatic valve requirements than normal displacement at work, so according to the selection ratio - Times to choose hydrophobic pneumatic valve.
。 Hydrophobic pneumatic valve working pressure difference: when choosing hydrophobic pneumatic valve, pneumatic valve can't choose to nominal pressure drain, because the nominal pressure can only be said hydrophobic pneumatic valve body shell under pressure rating, hydrophobic pneumatic valve nominal pressure and pressure difference is very big. So according to the working pressure difference to choose hydrophobic pneumatic valve displacement. Working pressure difference refers to the working pressure before hydrophobic pneumatic valve minus the hydrophobic pneumatic valve export back pressure difference. Hydrophobic pneumatic valve back pressure calculation is: ( When the hydrophobic after pneumatic valve water discharged into the atmosphere, the export of hydrophobic pneumatic valve back pressure is zero. If the hydrophobic pneumatic valve discharge of condensed water recycling, at this point, the export of hydrophobic pneumatic valve back pressure is the resistance of the return pipe, return pipe lift height, the second evaporator ( Water pressure in the combined.
。 Mechanical type hydrophobic pneumatic valve pneumatic seat number: mechanical type hydrophobic pneumatic valve in different working pressure difference, divided into a variety of specifications of the pneumatic valve seat aperture 'pneumatic seat number', each work pressure difference with 'pneumatic seat number' to form a coordinate curve of displacement, scanty water in different 'pneumatic seat number' have very big difference. Mechanical type hydrophobic pneumatic valve should be according to the process conditions of the maximum working pressure difference and maximum displacement curve of the coordinates of the corresponding to choose the appropriate 'pneumatic seat number'. Cannot be set in nominal pressure pneumatic seat number, if choose the wrong 'pneumatic seat number', likely hydrophobic pneumatic valve does not work or water equipment, influence the normal operation of equipment.
。 Hydrophobic pneumatic valve working temperature: when choosing hydrophobic pneumatic valve, to choose according to the highest temperature steam pipe can satisfy the requirement of process conditions of hydrophobic pneumatic valve. The highest temperature pipe steam more than nominal pressure corresponding saturated steam is called the superheated steam temperature, chose hydrophobic pneumatic valve in superheated steam pipe, should choose high temperature and high pressure superheated steam special hydrophobic pneumatic valve.
。 Hydrophobic pneumatic valve connection size: hydrophobic pneumatic valve technology conditions decide later, according to the working pressure difference before and after the hydrophobic pneumatic valve, drain water and 'pneumatic seat number', according to the hydrophobic pneumatic valve manufacturer's technical parameters to choose hydrophobic pneumatic valve size. ( Not according to the size of devices connected to matching the same size of hydrophobic pneumatic valve, pneumatic valve connection diameter does not represent a hydrophobic hydrophobic water volume, the size of the hydrophobic pneumatic valve of the same caliber, hydrophobic ability may vary widely; So when choosing hydrophobic pneumatic valve must according to the process condition of equipment and reference to the hydrophobic pneumatic valve manufacturers provide parameters for selecting hydrophobic pneumatic valve is the right choice.