Isishwankathelo

MD/JAJ series wellhead security hydraulic cutoff device luhlobo lwezixhobo zokuqinisekisa ukhuseleko lwemveliso yesiza kakuhle. Xa kukho i-overpressure kwi-wellhead, ukuqhuma kombhobho kunye nomlilo kwisikhululo, esi sixhobo sinokunqumla ngokuzenzekelayo umthombo wegesi we-wellhead ukukhusela ukwenzeka kunye nokusasazeka kweentlekele kunye neengozi, ngaloo ndlela ukhusela ukhuseleko lwezixhobo zesikhululo kunye nabasebenzi.

Iimpawu zokusebenza

1) ukuvala i-valve ngokuzenzekelayo kwimeko yoxinzelelo olugqithisileyo
2) ukuvala ivalve ngokuzenzekelayo kwimeko yokulahleka koxinzelelo
3) ukuvala ivalve ngokuzenzekelayo xa kunomlilo
4) ukuvalwa kwevalvu engxamisekileyo ngesandla
5) incwadi yokuvula nokuvalwa kakuhle ngokweemfuno zemveliso
6) umboniso wendawo yevalvu
7) akukho mbane kwaye akukho mntu unokusebenza
8) ukuchaneka koxinzelelo oluphezulu kunye nesenzo esithembekileyo
9) ukuvulwa kwevalve ekhawulezayo kunye nokuvala, ngakumbi ixesha lokufumana isignali ukuya ekuvaleni lingaphantsi kwemizuzwana emi-2
10) Isakhiwo esincinci, ukusebenza okulula, iimpazamo ezimbalwa kunye nokugcinwa okufanelekileyo.

Iiparamitha eziphambili zobugcisa

1) I-dameter ye-Nominal: DN25-DN600
2) Uxinzelelo lwegama: 0. 5-105MPa
3) Uluhlu lokuva i-overpressure: 0. 5-40 mpa
4) Ukulahleka koluhlu lokuva uxinzelelo: 0. 5-10 mpa
I-5) Ukuchaneka koxinzelelo lwexinzelelo: I-1% yoxinzelelo olubekiwe
6) Ukuvala ixesha lokuphendula: ≤2S

Umgaqo wokusebenza

Esi sixhobo silawula ukuvala ngokuzenzekelayo kwevalve yebhloko ye-hydraulic ngokusebenzisa inkqubo yokulawula i-hydraulic ebekwe kwikhabhinethi yokulawula. Umthombo woxinzelelo lwesixhobo unikezelwa yimpompo ye-manual, engena kwi-valve yebhloko ye-hydraulic kunye ne-accumulator ngokulandelanayo ngemibhobho. Ivalve eyintloko yokulawula icwangciswe kumbhobho wevalve yebhloko yoxinzelelo lwehydraulic ukulawula ukuvaleka kwevalve yebhloko yoxinzelelo loxinzelelo olukhulu. I-valve yokulawula i-master ilawulwa yi-second-low-pressure control loop, kwaye umthombo woxinzelelo unikezelwa yimpompo ye-manual ngokusebenzisa i-reducers yokunciphisa uxinzelelo lokunciphisa uxinzelelo olufunekayo, ngaloo ndlela yenze i-back back pressure ye-valve yokulawula. Cwangcisa iivalve zovavanyo oluphezulu kunye noluphantsi, iiplagi ze-alarm fusible plugs kunye nencwadana yolawulo lwe-ESD kwisekethe yokulawula uxinzelelo oluphantsi ngokulandelelanayo. Xa imiqondiso engafanelekanga (efana nophawu loxinzelelo oluphezulu lwentloko, umbhobho ovuzayo welahleko yoxinzelelo kunye nophawu lomlilo) zibhaqwe kwindawo nganye yolawulo, okanye umqondiso wentshukumo unikiwe ngokungeyomfuneko, ivalve yolawulo ehambelanayo iyasebenza okanye iplagi yomlilo iyanyibilika ukukhulula uxinzelelo. isiphaluka sesibini soxinzelelo oluphantsi. Ngeli xesha, uxinzelelo lwangasemva lwevalve yolawulo oluphambili lubangela ukuba uxinzelelo lwevalvu yevalve ye-hydraulic block ukuba ikhutshwe ngezibuko lolawulo lwevalve ephambili kunye nevalve yokukhulula ngokukhawuleza, kwaye i-actuator piston ibona ikhuselekile ivaleleke ngaphakathi. isenzo samandla entwasahlobo.