First, determine the pressure difference between the inlet and outlet of the steam trap according to the actual working conditions. The inlet pressure of the steam trap refers to the low working pressure of the valve at the inlet of the valve; the outlet pressure of the trap is the possible high working back pressure after the valve. The nominal pressure, nominal diameter, zoi high allowable pressure, zui high allowable temperature, zui high working pressure, zui low working pressure, zui high back pressure rate, condensate discharge, etc. of the trap should meet the working conditions of the steam pipe network. . The steam trap should also be considered. "The rated displacement of the trap is equal to the amount of condensate produced by the steam equipment multiplied by the selected ratio." 2. Determine the amount of condensate that may be generated during normal operation according to the process conditions, multiply by the correction factor, and select a certain type of trap according to the displacement of the trap. Third, there are many types of traps, and their structural principles are different. Therefore, different structural forms should be selected according to different use occasions (see Table 2).
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Crab Feed,Crab Feed 2018,Crab Feed 2019,Local Crab Feeds Fenxi Kangruilai Biotechnology Co., Ltd. , https://www.kangruilai-petfeed.com Select the recommended value Use occasion Requirements Select magnification Lower part of cylinder Under various pressures, it should be able to quickly remove condensate 3 Steam supervisor Before every 100m pipeline or control valve, the pipeline turns, the main end, etc. should be set with hydrophobic points. 3 Branch pipe Hydrophobic point should be set before various control valves with branch length greater than or equal to 5m 3 Steam separator Hydrophobic in the lower part of the separator 3 Heat pipe Generally, the heat tracing tube has a DN of 15 mm and a hydrophobic point. 2 heater When the pressure is constant 3 When the pressure is adjustable <0.1MPa 2 0.1～0.2MPa 2 0.2 to 0.6 MPa 3 Single coil heating liquid Rapid heating 3 No need for rapid heating 2 Multiple parallel coil heating liquid 2 Drying room (box) When the pressure is constant 2 When the pressure is adjustable 3 Lithium bromide refrigeration equipment evaporator Single effect, pressure ≤0.1MPa 2 Double effect, pressure ≤1MPa 3 Heating coil immersed in liquid When the pressure is constant 2 When the pressure is adjustable 0.1～0.2MPa 2 >0.2MPa 3 Siphon drainage 5 Tube heat exchanger When the pressure is constant 2 When the pressure is adjustable <0.1MPa 2 0.1～0.2MPa 2 >0.2MPa 3 Jacket An air vent valve must be placed above the jacketed steel 3 Single effect multi-effect evaporator Condensate volume <21t/h 3 >21t/h 2 Laminator Layered hydrophobic 3 Disinfection cabinet Exhaust valve above the cabinet 3 Rotary drying drum Surface line speed <30m/s 5 30~80m/s 8 80~100m/s 10 Secondary steam tank The tank diameter should ensure that the secondary steam speed is ≤5m/s, and the upper part of the tank should be equipped with an air discharge valve. 3 Steam trap type recommended for various steam heating equipment Steam heating equipment Recommended steam trap type Steam main pipe, heat pipe, steam jacket Disc type, float type Steam separator Floating ball Warm extension, hot air unit Floating ball Heating radiator Bellows, bimetal, bellows Heat Exchanger Steam inlet with temperature control valve Floating ball Steam inlet without temperature control valve Bimetal, floating ball Evaporator Float type, open down float type Jacket Bimetal Immersion in the tank to heat the coil Steam inlet with temperature control valve Floating ball Steam inlet without temperature control valve Bimetal, bellows Liquid cylinder dryer Float type (with anti-steam lock device), bimetal Dry cleaning machine Disc, bimetal, bellows Drying room (box) Floating ball Sterilizer Bellows, bimetal Vulcanizer Float type, open down float type Laminator Disc type, bimetal type Steam heating equipment below atmospheric pressure Pump trap 