How to use the method of weighing condensate ball valve flow measurement applications

How to use the method of weighing condensate ball valve flow measurement program a) Pressure relief devices imports by pressure. When pressure is 90% of the desired setting, pressure rise rate should be less than 0. 01 MPS/a, or for any one read the pressure necessary to lower rate of accurate. Observe and record device setting pressure and other needs and related property values. b) Ball valve for heavy closed pressure relief devices, continue to rise device inlet pressure until the device to achieve and maintain the discharge state, action observation devices at the same time, record the discharge pressure and opening. Off inlet pressure equipment, then gradually decreased while viewing device, recording back pressure. c) For the heavy closed pressure relief devices, repeat a) A and b) Until the setting pressure, discharge pressure and back pressure were determined and the stable value ( Should be repeated at least twice) 。 d) Ball valve displacement experiment was carried out, the higher unit inlet pressure to maintain the rated discharge pressure, until the flow measurement instrument shows stable state. e) Determine the condenser water hot side. f) Record the following: pressure relief devices to import pressure; Pressure relief devices to import discharge temperature calorimeter; Pressure relief devices open height (one by one When applicable) 。 g) To maintain the stability of the discharge state, and according to the predetermined time interval to the same procedure to read and record the data. h) Record with a stopwatch, take the second hand of synchronous clock or other appropriate method measuring the discharge time and record several times. i) Determine the condenser heat side water again, and accurate measurement and record in the discharge time to produce the condensate in the condenser ( Volume or weight) 。 j) Slowly lower inlet pressure and heavy record closed again back to the pressure of pressure relief devices. 4) observe small mechanical properties in the test process, should use the hearing, touch, or visual observation and record mechanical properties. Occurred if the valve frequency jump back on, shaking or not satisfied, it should be recorded. According to the agreement of all parties concerned, to repair the device to adjust or new again after test. Too much should be paid attention to, and consistent oscillations may lead to damage to the valve and dangerous for testing site personnel. 5) supplementary data recorded in the flowmeter method and weighing method, the condensate test process, as may be required or need to record and listed in different or additional pressure.