Kev faib tawm, ntsuas qhov ntsuas, thiab kev siv cov sensors siv nyob rau hauv cov roj depots thiab chaw nres tsheb roj
Raws li cov txheej txheem khaws cia thiab thauj cov khoom siv roj av ua kom zoo (roj av, diesel), cov sensors tau muab faib ua: qib kua, siab, kub, ntsuas roj, ntws tus nqi, hluav taws xob zoo li qub / hauv av, cov kua theem hloov, inclination, combustible kua to, thiab kev ruaj ntseg- ntsig txog sensors.
I. Liquid Level Sensors (Core Instruments for Storage Tanks)
1. Radar Level Gauge (Mainstream Technology)
Lub hauv paus ntsiab lus: Tsis yog -kev ntsuas kev sib cuag nrog - zaus microwaves.
Daim ntawv thov: Underground cia tso tsheb hlau luam hauv lub tank ua liaj ua teb; ntsug roj cia tank nyob rau hauv depots.
Lub hom phiaj: Nruam ntsuas roj qib siab thiab suav cov ntim cia; txuas mus rau siab / qis- theem tswb kom tiv thaiv overfilling los yog twj tso kua mis- qhuav tej yam kev mob; siv rau kev ntsuas cov khoom lag luam thiab nce / poob kev txheeb xyuas, ua kom yooj yim rau kev tsim cov ntaub ntawv cov khoom muag.
2. Magnetostrictive Level Gauge
Lub hauv paus ntsiab lus: Magnetic float thiab waveguide hlau.
Lub hom phiaj: Ib txhij ntsuas cov kua theem thiab roj- dej interface; qhov sib txawv ntawm cov roj thiab cov dej sib xyaw ntawm lub tank hauv qab; Cov khoom siv txheem rau ob npaug - cov tso tsheb hlau luam phab ntsa thiab cov khoom siv thauj khoom ntawm cov chaw nres tsheb roj; raug soj ntsuam xyuas cov dej tsub zuj zuj los tiv thaiv cov dej paug ntawm cov khoom ua kom zoo.
3. Float- Hom Hloov Hloov (Discrete/Switching Output: High/Low Level only)
Categorized rau hauv siab -level thiab low-level floats:
1) Qib siab - theem: Ua rau lub tswb nrov thiab txiav tawm kev thauj khoom thaum mus txog qib kev nyab xeeb, tiv thaiv kev sib tsoo ntau dhau;
2) Qib- qis: ceeb toom cov neeg ua haujlwm ntawm cov roj qis kom teem sijhawm ntxiv;
3) Muab ob npaug rau-walled tank interstitial ntab: Tswb yog cov roj nkag mus rau hauv qhov chaw interstitial, saib xyuas lub tank to.
II. Siab Sensors
1. Siab Transmitter (Standard 4–20mA teeb liab)
1. Tank ua liaj ua teb vapor-theem siab transmitter: Saib xyuas lub siab hauv lub tank qhov chaw vapor; roj av vapors ntau dhau tuaj yeem ua rau muaj kev kub ntxhov ntau dhau, thaum tsis tshua muaj siab tsim lub tshuab nqus tsev; tiv thaiv lub tank vau thiab ua tsis taus pa valve.
2. Pipeline siab sensor: saib xyuas lub siab hauv kev thauj khoom caj npab, roj hloov cov kav dej, thiab cov kab xa tawm;
Kev kub siab qhia tau hais tias cov kav dej thaiv los yog cov li qub tsis qhib tag nrho; Kev poob siab tam sim ntawd qhia tias cov raj xa dej tawg lossis xau. 3. Nqus Siab Sensor: Siv nrog lub tshuab nqus tsev vacuum thiab lub tshuab nqus tsev vapor; saib xyuas qhov tsis zoo siab hauv cov kab rov qab vapor los ntsuas qhov ua haujlwm ntawm lub vapor rov qab chav tsev.
2. Sib txawv siab Transmitter
Siv rau lub tank loj cia ntawm cov roj depots los xam cov qib kua raws li qhov sib txawv siab; kuj tseem saib xyuas lub siab poob thoob cov lim dej- ib qho kev nce ntxiv qhia tias muaj cov lim lim lim, qhia tias yuav tsum tau hloov pauv.
III. Kub Sensors (PT100 platinum tsis kam sensors feem ntau)
1. Nyob rau hauv -Tank Temperature Probe: Ntsuas qhov ntsuas kub ntawm cov roj; enables ntim- kub them raws li GB qauv. Txij li cov roj av nthuav dav ntawm qhov kub thiab txias, kho qhov ntim raws li qhov tseeb ntawm cov roj kub kom ntsuas qhov tseeb; kuj tseem saib xyuas qhov kub tsis txawv txav hauv lub tank txhawm rau txheeb xyuas kev nyab xeeb.
2. Pipeline Temperature Sensor: Saib xyuas qhov kub thiab txias hauv cov kab hloov roj thiab cov kab rov qab vapor; ntsuam xyuas qhov ua tau zoo ntawm condensation-raws li rov qab.
3. Ambient Temperature Sensor: ntsuas qhov kub ntawm sab nraum zoov; muab cov ntaub ntawv los txiav txim kev ua haujlwm rau cov khoom siv vapor rov qab.
IV. Gas Sensors (Kev nyab xeeb thiab tawg- pov thawj yog qhov tseem ceeb)
1. Catalytic Combustion Combustible Gas Sensor (LEL)
Lub hom phiaj gases: roj av vapors thiab diesel fumes; chav tsev: % LEL (Lower Explosive Limit);
Cov chaw teeb tsa: Tank ua liaj ua teb cov pob khoom, qhov chaw tshem tawm, hauv qab cov khoom siv roj, chav tsev vapor rov qab, thiab cov yeeb nkab trench;
Kev Ua Haujlwm: Ua rau lub suab nrov thiab pom lub tswb thiab ua kom cov kiv cua tawm thaum vapor concentrations ntau tshaj qhov txwv; txiav tawm lub hwj chim rau roj twj thaum cov concentrations mus txog theem tseem ceeb los tiv thaiv kev tawg lossis hluav taws kub.
2. VOC PID (Photoionization ntes) Sensor
Tshwj xeeb yog kuaj pom cov roj av vapors; saib xyuas me me rau hauv ob -cov phab ntsa tank interstitial qhov chaw thiab cov yeeb nkab trench; muab rhiab heev dua li catalytic combustion sensors, ua kom pom ntxov ntawm me ntsis leaks.
3. Oxygen Sensor (O₂)
Siv nyob rau hauv cov yeeb nkab trenches, tank chambers, thiab qhov chaw uas muaj kev tu lub tank; txwv tsis pub cov neeg ua haujlwm nkag yog tias cov pa oxygen tsawg dhau; ua kom muaj kev nyab xeeb thaum lub sijhawm ua haujlwm hauv chaw kaw. V. Flow Sensors (rau metering roj xa)
1. Qhov zoo ntawm kev khiav dej num ntsuas (oval iav flow meters): Siv rau cov roj depot loading caj npab; muab cov metering meej ntawm loaded roj ntim rau kev lag luam kev sib haum xeeb.
2. Coriolis huab cua ntws ntsuas: Siv nyob rau hauv siab -kawg roj depots; ncaj qha ntsuas huab hwm coj tus nqi, tsis cuam tshuam los ntawm qhov kub thiab txias; ib txhij ntsuas qhov ceev kom paub tseeb tias muaj peev xwm ua kom tsis muaj roj.
3. Turbine flow meters: Siv nyob rau hauv refueling kab thiab internal hloov pipelines; saib xyuas instantaneous pipeline flow; ntes tub sab lossis cov kav dej puas tsuaj raws li qhov tsis txaus ntseeg txaus; Tshwj xeeb mem tes turbine meters yog siv nyob rau hauv cov roj dispensers.
VI. Hluav Taws Xob Static thiab Grounding Monitoring Sensors (tseem ceeb rau kev tiv thaiv tawg)
1. Static grounding tswb (grounding resistance sensor)
Saib xyuas cov av tiv thaiv nruab nrab ntawm lub hauv av clamp thiab lub tanker lub cev nyob rau hauv tiag tiag - lub sij hawm thaum lub sij hawm unloading; ua rau lub tswb nrov yog tias qhov av tsis zoo (qhov kev tiv thaiv siab dhau) txhawm rau tiv thaiv cov khoom zoo li qub uas tuaj yeem ua rau cov roj vapors.
VII. Leak Detection Sensors
1. Ob chav-walled tank interstitial leak sensor (kua-sensing cable)
Sensing cable ntsia nyob rau hauv qhov chaw interstitial ntawm ob -walled tso tsheb hlau luam; ua rau lub tswb nrov tam sim ntawd thaum sib cuag nrog cov roj leaked los ntawm lub tank sab hauv; distinguishes ntawm dej thiab roj to.
2. Trench leak detection cable (roj-sensing cable)
Muab tso rau hauv qab ntawm cov yeeb nkab trench; ua rau lub tswb yog tias cov roj refined ntws mus rau hauv pem teb trench.
VIII. Tshwj xeeb Sensors rau Vapor Recovery Systems
1. Siab sensor: Saib xyuas qhov tsis zoo siab hauv cov kav dej rov qab.
2. Flow sensor: ntsuas qhov ntim ntawm cov roj rov qab.
3. Temperature sensor: Saib xyuas qhov ntsuas kub ntawm chav tsev condensation.
4. Carbon canister xwm txheej sensor: Txiav txim siab qib saturation ntawm cov pa roj carbon activated thiab cov teeb liab thaum xav tau kev hloov.
IX. Pab Sensors
1. Inclinometer ( qaij sensor): Saib xyuas lub tank hauv paus kev daws teeb meem thiab tilting; teeb meem ceeb toom yog tias tank qaij tshaj qhov txwv.
2. Humidity sensor: Saib xyuas cov av noo hauv chav fais fab thiab chav ntsuas.
3. Flame detectors / UV- IR nplaim sensors: Siv rau kev ruaj ntseg tank ua liaj ua teb; muab lub tswb nrov thaum muaj hluav taws kub. Simplified Categorized Summary (Suitable for Report Writing)
1. Liquid Level: Radar qib gauges, magnetostrictive qib gauges, ntab keyboards; Kev Ua Haujlwm: Kev ntsuas, kev tiv thaiv overfill, roj- kev saib xyuas dej.
2. Siab: siab transmitters, sib txawv siab transmitters; Saib xyuas lub tank roj siab, lub raj xa dej siab, thiab lim dej poob.
3. Kub: Pt100 platinum kuj sensors; Roj kub them nyiaj rau kev ntsuas, khoom siv ntsuas kub.
4. Gas Detection: Catalytic combustion (LEL) sensors, PID-VOC sensors, oxygen sensors; Saib xyuas hydrocarbon leaks, kev nyab xeeb tawg.
5. Flow: Oval iav flowmeter, Coriolis huab hwm coj ntsuas, turbine flow meters; Kev ntsuas cov khoom xa tawm, kev soj ntsuam cov kav dej.
6. Grounding / Static Hluav Taws Xob Sensors: Unloading grounding kuj xyuas; Tshem tawm cov teeb meem hluav taws xob zoo li qub.
7. Leakage Sensors: Interstitial leak detection cables, trench sensing cables; Kev ceeb toom ntxov rau cov roj tank.
8. Environmental & Security Sensors: Tilt sensors, nplaim taws ntes.
