Explosion-proof positive pressure cabinet的Usage MethodIsLeadingWeldingIntoon-siteAir Source，Advanced AdvancedStationQuality And LeakQuality的StandardWeighadjust，Explosion-proof positive pressure cabinetinOutputFactoryFrontalreadyAdvanced ThereforeCanadjust; Generally situationNextUsernonDemandMoreadjust Namely UpAdvanced Operate。If adjustment is necessary due to a malfunction, it should be performed by professional personnel according to the following requirements: Confirm that all electrical components in the explosion-proof positive pressure cabinet are correctly installed and wired, all positive pressure enclosure gas circuits are properly connected, and all positive pressure enclosure doors (covers) are closed and sealed.。Rotate the pressure reducing valve adjustment handle counterclockwise until the outlet pressure gauge reading of the pressure reducing valve reaches 0.

　　Rotate the adjustment caps of the two branch throttle valves clockwise respectively, then rotate counterclockwise 5 turns, so that the throttle valve flow is in the middle position, and lock the adjustment caps; then slowly rotate the pressure reducing valve adjustment handle clockwise to adjust the outlet pressure of the pressure reducing valve; when the positive-pressure cabinet pressure reaches 50Pa (or the low-pressure alarm indicator light goes out), record the indicated value of the pressure reducing valve outlet pressure gauge; continue rotating the pressure regulating valve handle so that the indicated value of the pressure reducing valve outlet pressure gauge is 0.2MPa; at this time, the positive-pressure system enters the gas purge stage before operation; after 30 minutes, the system begins normal operation; at this time, continue rotating the pressure regulating valve handle; when the high-pressure exhaust alarm device operates, record the indicated value of the pressure reducing valve outlet pressure gauge; then rotate the pressure regulating valve handle counterclockwise so that the indicated value of the pressure reducing valve outlet pressure gauge is the average of the two indicated values just recorded.The balancing adjustment process between inlet air volume and leakage volume is now complete.。During the adjustment process, note that the outlet pressure of the pressure reducing valve must not exceed 0.3MPa.。

　　PunchingOpenPositive PressureAdvancedStationMobileValve，WillExplosion-proof control boxcontrolSwitch旋Customer FirstOpenposition;ThereforeWhenBlowingSweepElectromagneticValve And DrainStationElectromagneticValveVentilationElectricPunchingOpen，Positive Pressurecontrolsystem Namely automaticEntryBlowingSweepStageSection，ChangeStationIndustryOperatingIndicator LightBright。After purging for 30 minutes, the ventilation indicator light turns off, the purge solenoid valve and exhaust solenoid valve are de-energized and closed, and the purging operation is complete.。The system enters the positive pressure protection system monitoring and operation phase, with the power indicator light illuminated, allowing operation and control of the electrical control components of the positive pressure cabinet.。

When a working day ends and the power and air source are shut off, the positive pressure protection system must be activated on the next working day; if the airtightness of the positive pressure enclosure has changed, the balancing adjustment between inlet air volume and leakage volume must be performed again.。

　　Abnormal State的processingmethod

　　QuiteStationLineoccurfault，Positive PressureEnclosureDomesticpressureLowIn50PaWhen， the low-pressure alarm indicator light illuminates, and the system bell begins to emit an alarm signal. At this time, the duty personnel must promptly take pressure adjustment measures or improve the airtightness of the positive pressure enclosure to adjust the positive pressure value above 50Pa.。

The gas circuit of the explosion-proof positive pressure cabinet has been fully adjusted before leaving the factory, so no adjustment is needed during normal operation.。butinExplosion-proof positive pressure cabinet的operationDuringExtentIn，Such asOutputOn-siteLowPressureAlarmIndicator LightBright，AlarmBellAlarmsituationWhen，TheseIs Because StationLinesystemair pressureEtherLow，UpAccordingSuch asNextStepsadjustReducePressureValveAdvanced solution:

　　WillReducePressureValve的ConditioningPressureMobile柄SmoothWhen针RotateInteraction半Ring Or LessAllow;ViewInspectStationpressureTableindicator And 聆听AlarmSound，ifLowPressureAlarmIndicator LightInvincibleMoreDevelopLight，AlarmBellInvincibleMoreAlarm,descriptionAdjustmentWithEnergy-saving,MoreAccordingno.6.1Chips的requirementsAdvanced adjust Namely Up。Adjustment should be performed gradually; do not arbitrarily rotate the throttle valve knob to avoid damaging the gas circuit system due to excessive pressure.。

A properly adjusted positive pressure system will not produce alarms during normal operation.。

If the high-pressure alarm indicator light alarms, adjust the throttle valve in the opposite direction and repeat the above actions.。

If all adjustments are ineffective, immediately cut off the power supply and thoroughly investigate the cause.。