氢气瓶高压阀门TV2XXseriestankvalvemanual.doc

350 BAR INTERNAL SOLENOIDTANK VALVEREFERENCE MANUALTV-2XX VALVESSpecifically designed for 350 bar Hydrogen, the IMPCO GFI solenoid operated internal tank valve provides enhanced storage system safety. Available in both 12 VDC and 24 VDC models. An integrated temperature and pressure activated relief device ensures total system safety by ensuring tank protection.Note: Not all models exactly as shown.1CONFIDENTIALITYThe information contained in this document is confidential and proprietary to IMPCO Technologies Control Systems. This information cannot be disclosed to other parties without written authorization from IMPCO Technologies. This document is intended only for customers engaged in a current confidentiality agreement with IMPCO Technologies.DISCLAIMERAlthough every effort has been made to provide complete and accurate information, IMPCO Technologies cannot guarantee performance based solely on this document.Table of ContentsPHYSICAL DIMENSIONS 2GAS SCHEMATIC AND SPECIFICATIONS 4ELECTRICAL SCHEMATIC AND SPECIFICATIONS 6TEMERATURE SENSOR 7OPTIONAL CONNECTOR AND MATING CONNECTOR 8PRESSURE RELIEF DEVICE (PRD) 9MANUAL LOCKDOWN 9DIAGNOSTICS 10SERVIC CHECKS 14SPECIAL TOOLS 15APPLICATION CONSIDERATIONS 162PHYSICAL DIMENSIONSThe internal tank valve is intended to fit into a standard 2-12 UN tank thread, with only 2” [50.8mm] protruding beyond the neck of the tank. To keep space requirements to a minimum, all connections are radial to the tank neck. Even the manual lockdown can be accessed from the side.Main materials in gas contact:- 6061-T6 aluminum- Glass-18-8 Stainless steel- 430F and ‘FR Stainless steel- Nitrile- Dupont Vespel- Delrin- Copper wire, insulation- Heatshrink tubingWeight (w/o sensors): 1.925 lbs0.87 kgTank volume displaced:6.4cu. in.0.105 LInlet/Outlet ports:9/16-18 SAE J1926/1, -6 O-ringPRD Port7/16-20 UNFSAE J1926/1, -6 O-ringTank thread:2"-12 UN3Minimum clearances inside the tank are given below. These are not a gland or tank design, but only designated minimum clearances.4GAS SCHEMATIC AND SPECIFICATIONSGENERALGas:HydrogenNominal pressure:5075 psi350 BargMax. overfill pressure.6350 psi438 BargMin. burst pressure:20,300 psi1400 BargOperating temperature:-40ºC to +85ºCCv, inlet to tank0.7Cv, inlet to outlet~1.2FILLINGThe solenoid does not need to be powered to fill. A pressure differential of about 2 bar (30 psi) opens the solenoid. It then acts as a check valve, preventing flow back out.The high pressure sensor reads pressure near the inlet, not inside the tank. At high fill rates, it reads higher than the pressure in the tank, due to pressure losses through the valve.The temperature sensor reads the temperature of the gas inside the tank.RUNNINGEnergize the solenoid to open the valve.The high pressure sensor reads the tank pressure.Using the manual override tool has the same effect as using the solenoid.WARNING: Use of the manual override tool will damage the solenoid piston seal and the valve must be replaced. Return the damaged valve to IMPCO Technologies.CLOSEDSimilar condition exists if the manual lockdown is used.Only the PRD is connected to tank pressure. The PRD cannot be isolated from the tank pressure.The temperature sensor still reads gas temperature.The pressure sensor is not connected to the tank and could be removed if the lines are drained and the manual lockdown is closed.ELECTRICAL SCHEMATIC AND SPECIFICATIONSNominal voltage:12V24VMax. voltage:18V36VCurrent:1 ampTransient clip voltage:40VResistance19.2 +/-5% ohms @20C71.82 +/-5% @20cDielectric Strength of coil 1000VRMS1000VRMSDuty Cycle Continuous Continuous6SOLENOIDThe solenoid is not polarity sensitive. A transient suppressor is installed to absorb the voltage spike that occurs when the solenoid is released. This keeps the reverse voltage spike down to 40 volts, for about 3 milliseconds. 7THERMISTOR The thermistor is on the pressure side of the valve, inside the tank. Because of this location the sensor reads the actual gas temperature at that point. However, under high flow conditions, temperature differences of over 30°C have been measured between various points in the tank. This is something that must be tested in given tank setups. Sensor Supplier SpecificationsTYPENTCR25C2.7Kohms +/-2%Tolerance2%Thermal Time Constant10sThermal Dissipation2mW/CPower @ 25C.25WPower @ 85C1.25WOPTIONAL CONNECTOR AND MATING CONNECTORIMPCO Technologies can supply the tank valve (including temperature sensor) with either a 16” (40 cm) unterminated pigtail 。