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GII THIU HTHNG CHA CHY SPRINKLER

HThng Cha Chy Sprinkler l loi hthng cha chy phbin hin nay. N dp tt m chy bng cchphun nc trc tip vo khu vc ang chy m ti u phun sprinkler bkch hot ngng nhit c xc nh trc.

"HThng Sprinkler l mt hthng lin kt cc ng ng chy ngm di t v trn mt t, c thit ktheo nhng tiu chun ca cng nghcha chy. C thbtr mt hoc nhiu ngun cp nc tng. Phnh thng nm trn mt t l mt mng ng ng c thit k theo nguyn tc "tnh ton thy lc" hoc

nguyn tc "

nh c

ng

ng", v

c lp

t bn trong m

t building, m

t cng trnh ki

n trc, ho

c m

tkhu vc, m nhn chung, he thong ong naynm cao qu u, v trn ng ng y, nhng u sprinklers c

btr sao cho khi phun nc ra, n bao trm mt vng khng gian c tnh ton trc. Van iu khin miriser ca h thng c t trn riser hoc trn ng ng cp nc cho n. Mi riser ca hthng sprinklergm c mt thit bkch hot bo ng khi hthng khi ng vn hnh cha chy. Thng th hthng ckch hot bng nhit pht ra tm chy, v n phun nc ra phtrn khu vc c chy.

Hthng kch hot trc

L hthng sprinkler c cc u sprinklers tng c gn vo hthng ng ng c cha khng kh, c thc hoc khng c p lc, v c mt hthng bo chy bsung c lp t ti cng nhng khu vc c t usprinkler. Khi hthng bo chy kch hot, n smvan cho php nc chy vo hthng ng ng, v ri

phun nc ra qua cc sprinkler m.

H thng kch hot trc cng ging nhh thng Sprinkler xtrn ngoi tr l sdng u phun Sprinklerkn. Hthng ny thch hp cho nhng ni cha cc thit bvt phm c gi trhay nhng nh kho m khnggian lm nh hng n tnh hot ng hiu quca u phun nhdva p gy hhng u phun. Van ca hthng kch hot trc lun lun ng v chmkhi c kch hot bi hthng bo chy.

H thng bo chy skch hot mvan kch hot trc, cho nc i vo h thng ng ng. Nc vncha phun ra tu phun cho n khi nhit kch hot cho u phun mra v phun nc ra ngoi. Hot nglc ny ca van kch hot trc ging nhkiu loi hthng Sprinkler t. (NFPA 13)

Preaction Sprinkler system (Single interlock electric release)

When the detector (1) is activated by fire, a signal is sent to the Par 3 Release Control Panel (2). The panel sends

appropriate alarm and trouble signals and, at the same time, signals the release of the solenoid valve (3). Thedeluge valve priming chamber (4) is then vented faster than water valve to open. The water enters the system

piping, but no water is discharged until a sprinkler (6) is activated. When the deluge valve operates, pressure

closes the PSOV (7) cutting ogg the supply of the water the priming chamber, latching the deluge valve in the

open position.

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