Flowmeter method was used to measure flow program

Ball valve flowmeter method was used to measure flow 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 mpa/s, 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. Then gradually reduce the inlet pressure, until the device is closed, the action observation devices at the same time, record back pressure. c) For heavy closed pressure relief devices, repeat until a > b > and setting pressure, discharge pressure and back pressure were determined and the stable value ( Should be repeated at least twice) 。 d) Displacement experiment was carried out, the higher unit inlet pressure to maintain the rated discharge pressure, until the flow measurement instrument shows stable state. c) Closed ball valve test container steam nozzle, and record or tag gauge the initial condensate water in the glass tube. 0 record the following: f) Record the following ball valves of various: - - - - Pressure relief devices import pressure; - - - - Pressure relief devices import discharge temperature of the heat meter; - - - - Pressure relief devices began to rev height ( When applicable) - - - - Flowmeter import static pressure; - - - - Flood gauge pressure difference; - - - - Discharge temperature of the heat meter flow meter. 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) Using a stopwatch, take the second method of synchronous clock or other appropriate records discharge time and record the data for this kind of moment. i) Weight or volume measurement methods are used to determine a trial container in the amount of condensate discharge period to generate and record. j) Slowly lower inlet pressure and heavy record closed again back to the pressure of pressure relief devices.