Fire pump outlet pressure gauge siamna tur range leh basis pangngai
Fire pump outlet pressure gauge-a normal range chu 0.8-1.4 MPa a ni tlangpui. He range hi a hnuaia professional standards te hmanga siam a ni:
1. Ram pum huap Standard atana thil tul hrang hrang:"Technical Specifications for Fire Water Supply and Fire Hydrant Systems" (GB 50974-2014) Article 5.1.6-ah chuan, fire pump outlet pressure hian system-a a ṭhat lohna ber hmunah kangmei venna hmanrua-te operating pressure mamawh a tlin a ngai a ni. A design value tlangpui chu 0.8-1.4 MPa a ni.
2. Practical Application Scenario hrang hrang: 1.1.
- Building hniam-rise (residential building leh shopping mall tenau ang chi) te hian pressure limit hniam zawk 0.8 MPa an nei tlangpui.
- Building sang-rise emaw complex lian tak takah chuan pipe resistance leh elevation danglamna hneh turin pressure range 1.0-1.4 MPa a ngai a ni.
3. Khawvel pum huap Reference:US NFPA 20 standard chuan fire pump pressure 1.0 MPa vel vawng reng turin a rawt bawk a, hei hi a tlangpuiin ram chhunga standard nen a inmil hle.
Pressure pangngai lo awm chhan leh a chinfel dan
Pressure gauge reading chu normal range pawnah a awm chuan a hnuaia mi hi thlirlet rawh:
1. Pressure hniam (<0.8 MPa):
- A chhan: Impeller chhe, pipe leak, power supply voltage tling lo, emaw suction port khar.
- Solution: Leak a awm leh awm loh enfiah la, filter chu tifai la, impeller chu thlak emaw, a tul chuan pressure tihsan emaw.
2. High Pressure (>1.4 MPa a ni a:
- A chhan: Outlet valve a inhawng kim lo a, pipe a khar a, pressure gauge chu calibration a chhuak lo bawk.
- Solution: Valve dinhmun enfiah la, pipe chu clear la, pressure gauge chu calibrate fo rawh.
Pressure Gauge dik taka enkawl leh enkawl dan
1. Calibration neih dan pangngai:Chhiar dik theih nan "Pressure Instrument Verification Regulations" (JJG 52-2013) angin thla ruk danah calibration tih thin tur a ni.
2. Nitin enfiah thin: 1.1.Pointer chu stability a awm leh awm loh enfiah la, dial glass-ah crack awm leh awm loh enfiah la, joint-a leak awm leh awm loh enfiah bawk ang che.
3. Linkage Test neih dan tur:Fire protection system trial run nen a inzawm chuan, pressure response hian design value a tlin leh tlin loh enfiah turin actual operating conditions simulate a ni.
Thu belhchian dawl zawk:Pressure gauge value hi fire pump hriselna tilangtu pakhat chauh a ni a; parameter dang flow rate leh current te nen pawh ngaihtuah tel a ngai bawk. Entirnan, pressure chu normal ni mahse flow rate a tling tawk lo a nih chuan pipeline-a a then blockage a awm thei. Fire pump endikna record kimchang tak nei tur leh professional organization-in inspection report a tihchhuah chu nakin lawka hman theih turin vawn reng tur a ni.