原文：
选型、安装合适的疏水阀只要有蒸汽通过，就不会出现冰冻问题。但是如果蒸汽断了，蒸汽凝结水就会在热交换器或伴管里形成真空。这就会在发生冰冻之前阻止凝结水从系统中自由排放出去。所以，要在被排放设备和疏水阀之间安装一个真空破坏器。如果从疏水阀到回水管不是使用重力排放，疏水阀和排放管线就应该用人工排放或者使用带防冻措施的排放管自动排放。还有，当多个疏水阀一起安装在疏水阀站的时候，给疏水阀保温可以防止冰冻。 防冻措施有: 1．疏水阀不要选的尺寸过大。 2．保持疏水阀排放管线尽可能短。 3．向下倾斜疏水阀排放管线，以加快重力排放的速度。 4．疏水阀排放管线和凝结水回水管线加保温。 5．当凝结水回水管线暴露在大气条件下时，应考虑加伴热管。 6．如果回水管升高，垂直排放管要与回水集管上部的排放管相邻，并把排放管和疏水阀排放管一起保温

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译文：
Selection, installation suitable as long as steam through the trap, the problem will not appear frozen. However, if the steam off, and steam condensate will be in the heat exchanger or with the formation of a vacuum tube inside. This will prevent condensation in the event of ice water until free emitted from the system. Therefore, we must be installed between the discharge device and a vacuum trap destruction device. From the trap to the back instead of using gravity discharge pipe, trap and discharge pipe should be used with artificial emissions or emissions control measures with antifreeze auto emissions. Also, when the number of traps installed in the steam trap station with time to trap heat to prevent freezing. Freezing measures: 1. Traps do not choose a size too large. 2. Emission lines as short as possible to keep the trap. 3. Downward-sloping trap discharge pipeline, to accelerate the speed of gravity discharge. 4. Traps and condensate return water discharge pipe insulation pipe increases. 5. When condensate return water pipeline when exposed to atmospheric conditions, should consider with heat pipe. 6. If the returning water increases, the vertical discharge pipe set with the return water outfall pipe adjacent the upper and the discharge pipe and discharge pipe with insulation traps