High-power frequency converters applied in hazardous environments such as petroleum, petrochemical, and natural gas must not only meet their own explosion-proof performance requirements but also ensure that the ambient temperature meets the environmental requirements of the electrical products themselves. Most electromechanical products require an operating ambient temperature between -20 and +40°C. In most regions, outdoor ambient temperatures in summer exceed 40°C. Combined with the heat generated by the electrical products themselves, the temperature inside the cabinet may reach over 60°C, causing the electrical products to trigger high-temperature protection and shut down, making normal use impossible.。In order tosolutionExplosion-proof distribution boxDomesticInstallationGreaterPowerInverter的Heat Dissipationproblem，according toexplosion-proofStandardWithfollowingTwoVariousformSuitableOverallInHeatingcomponent的explosion-proofTypeForm:Flameproof TypeExplosion-proof distribution boxPlusSystemCoolingMeasures，ventilationTypeExplosion-proof positive pressure cabinet。

　　One、Flameproof TypeExplosion-proof distribution boxProductStableMeaning

　　Electricalequipment的OneVariousexplosion-proofTypeForm，ItsEnclosureAbilitycanwithstandThroughEnclosureanywhatjoint surface Or structureClearanceEntryEnclosureInternal的explosionPerformanceMixingOverallMineralinInternalexplosion And InvincibleDamage， And will notTriggerRiseExternalByOneVarious、MoreVariousGas Or EvaporateStationDescribeCost的Explosive GasEnvironment的PointGas。From the above definition, it can be seen that flameproof enclosures not only require high strength but also sealing performance to prevent internal arcs, sparks, or high temperatures from spreading outside the cabinet and causing environmental ignition and explosion. This requires that the flameproof joint gap, flatness of the flameproof surface, length of the flameproof surface, and roughness of the flameproof surface all comply with relevant standards. This makes the explosion-proof cabinet sealing higher than ordinary electrical cabinets, and internal electrical heat will remain trapped in the cabinet, creating a high-temperature superposition with the environment. The frequency converter itself is not allowed any modifications or alterations after leaving the factory, as this will affect its electrical performance and after-sales service.

　　Heat Dissipationsolution:

　　adoptMandatorySystemCooling的methodForCabinetDomesticAerospaceStationAdvanced LowerTemperature，OurCompanyadoptfollowingsolutionsolutionWithStructurepartMeasures。

　　2、ventilationTypeExplosion-proof positive pressure cabinetProductStableMeaning

　　UsersProtectionSupportEnclosureInternalProtectionGas的pressureHigher thanExternalAtmospheric Pressure，WithHinderPreventExternalExplosive GasEntryEnclosureDomestic的method。This explosion-proof form requires clean compressed air free of combustible gases at the site, with an air pressure of 0.4-0.8 MPa. The air pressure must be continuous and stable, not fluctuating high and low.。This solution uses compressed air to circulate within the cabinet before being discharged through ventilation outlets, relying on air circulation to carry away heat. For cabinets containing high-power heat-generating components, the consumption of compressed air is relatively high, and the cooling effect is not as effective as forced refrigeration. At best, it expels the heat from the heat-generating components, bringing the cabinet interior to the same temperature as the ambient environment. If used outdoors, it is recommended to equip a sun and rain shelter. Forced refrigeration (cabinet air conditioner) can also be installed on the basis of the positive-pressure type, which reduces ventilation demand and only requires maintaining pressure. However, compared with the explosion-proof type, an on-site air supply source is required.The advantage is that the cabinet volume is not limited, and multiple components can be integrated into one cabinet.。

　　Heat Dissipationsolution:

　　1、InverterSupremeNextTwoendStriveSealingClosedAdvancedOutputRiskUnderground，MakeHighlyCabinetDomesticDescribeCostCycleEnvironmentalRiskUnderground，CoolingCondensateApplianceOutputCome的CoolingRiskLeadingAfterCabinetDomesticLowerTemperatureLowerHumidity，MoreAfterCabinetDomesticMostLeftNextcornerTowardInverterAdvancedRiskReputationSendRisk，AfterInverterSelfItself的SendRiskMachineTowardSupremeExternalSendRisk，TopExternalEvacuateRiskMachinePunchingOutput的HeatRiskTowardRightSupremecornerDrainOutput，MorebeCoolingCondensateApplianceSuctionInto，TheseIsOneProductionCycleEnvironmentalDuringExtent;SoUpavoidanceCoolingCondensateApplianceOutputCome的CoolingStationdirectlyEntryInverter，MakeLow Temperature遇HeatAerospaceStationDescribeCostLevelSprayattachFollowedinInverterElectronicscomponentSupreme，conductCausingreductionInsulation Resistanceoccurfault。

2. An air deflection metal plate is placed below the condenser, and the condensed water formed can flow to the water collection port below, then be discharged outside the cabinet through the explosion-proof metal breathing mesh.。

3. Inlet and outlet cables use packing-type explosion-proof cable glands. After the conductors are installed, explosion-proof sealing putty is filled and cured, which can eliminate the lower chamber air inlet chamber and reduce cabinet space.。If the conductor is too thick, it can be directly entered this way for convenient installation.。

　　4.InstallationExplosion-proof cabinet air conditioner。