The steam trap test procedures
In order to prolong life and saving trap, should establish a set of steam trap routine test method and maintenance procedures. The size of the trap, work in the whole process of pressure and importance, will decide the trap inspection period and frequency.
| 工作压力 MPa |
应用场合 | |||
| 集水管 | 伴热线 | 盘管 | 工艺 | |
| 0—0．7 0．7一1．7 1．7—3．1 3．1以上 |
1 2 2 3 |
l 2 2 3 |
2 2 3 4 |
3 3 4 12 |
检测阀门法 是最好的办法
This picture represents the correct connection method, add in the cut-off valve, will trap and back ShuiJi tube partition. After the valve opens test should be paid attention to:
1 the emissions -- the water bucket and disc type of trap is intermittent discharge condensate. Floating ball is continuous discharge, according to the different type of static heat load may be continuous may also is intermittent discharge. When the bucket trap load tiny, because, also for trickle-down effect discharge condensate. This way of working in these conditions is normal.
2 - don't braising steam braising steam trap fault as through the steam leakage. Pressure water contains quantity of heat than the heat of atmospheric water. When water is discharged, the excess heat will make some condensate second evaporation. How to identify flash steam trap: users sometimes will confuse what braising steam, what is the leakage of steam. See below for the different: if the steam jet, become "blue" steam leakage, steam. If the steam is continuous "gone with the wind" (whenever traps formed when discharge condensate), white mist, which braising steam.
The stethoscope test using stethoscope or with a piece of steel rod, put a trap cover, and the other is posted on the ear, I can hear the intermittent discharge and continuous discharge is different. In the correct working condition, can from the trap injection water, increase the flow of sound judgment. Due to the other voice will pass along the pipe, so use auscultation test method, need to have experienced person.
The thermometer test method depends on the water pipe test precision design and trap valve size hole, and, when the discharge to the public, may have other trap eruption caused by emissions, trap export temperatures. Therefore, use auscultation method effect is better.
