Steam traps basic requirements and routine maintenance

The following provides an overview of the trap functions, energy-saving measures, operation, maintenance management and other aspects of what are the specific requirements. (1) Do not leak steam when removing condensate. Steam does not leak when condensing water is trapped in the most basic conditions. Therefore, although it is a condensate trap that eliminates accumulation with steam, it is not called a condensate trap and is called a steam trap. Trap valve action is accurate, sensitive refers to the condensation of water to open and close the case. That is, when condensate is excluded, the trap is fully open and rapidly discharged; it can be quickly closed at the end of the discharge to prevent valuable steam leakage. This is the main performance traps. In other words, the trap only fully open and fully closed two cases, if the switch slow, the switch is not in place, will cause throttling effect, easy to cause damage to the trap as a whole, but also the main reason for the leakage of steam. As mentioned above, the trap operation in principle is fully open or fully closed, that is, open, close action. Depending on the type, there may be two types of continuous discharge and intermittent discharge. (2) It is possible to exclude all the condensed water anywhere in the steam system. Traps must be capable of efficiently and accurately excluding the piping used in steam equipment, heat exchangers and other major equipment and steam system any part of the condensate generated. (3) can discharge both air and condensate. The air mixed into the steam plant is initially mixed in the steam and is not separated until the steam condenses into water. It creates an air layer on the heat transfer surface of the steam-using equipment, severely affecting heat conduction and must therefore be vented. (4) for a wide range of pressure. For traps, if the pressure changes slightly its performance is affected, or even stop the action is not acceptable, in which case its performance is not affected, and can adapt to any pressure. At the same time require the steam trap to allow greater back pressure. (5) easy maintenance and repair. This requirement is related to the structure of the trap. Trap requires a simple structure, fewer moving parts. In order to make the valve action parts do not produce stress, should try to use the appropriate material, more importantly, its structure should be easy to process. In short, steam traps in the management should not require full-time staff to carry out regular maintenance work, that is to reduce maintenance costs. (6) practicality. Trap should be small, light weight, high life expectancy, low prices, and not due to air or steam barriers to loss of drainage capacity, the occurrence of air blocking and steam locks and other accidents.