Failure of a control valve on the liquid line to a tank must be considered because such a failure may overload heat exchange equipment and cause high temperature material to be admitted to the tank.

• 必须考虑储罐液体注入管线上的控制阀发生故障的情况，因为一旦该阀发生故障就有可能引起换热器超载，从而向储罐内注入高温物料。