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VAC _____________________

Vacuum/Atmospheres

Figure 3-3. HE-493 Inlets to Glove Box

3-6

HE-493-7/80

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Содержание DRI-TRAIN HE-493

Страница 1: ...DRI TRAIN TECHNICAL MANUAL MODEL HE 493 HE 493 7 80 VACUUM ATMOSPHERES COMPANY 4652 ROSECRANS AVE HAWTHORNE CA 90250 6896 TELEPHONE 310 644 0255 FAX 310 970 0980...

Страница 2: ...applications theory of operation and parts A table of contents and a subject index at the back of the manual provide ready accessibility of all data Orawings and photos herein add to the overall clari...

Страница 3: ...hed at Telephone Fax 310 644 0255 310 970 0980 8 00am 5 00pm PSTI 24 Hours The RGA Number must be shown on the packing slip accompanying the item and be marked on the outside of the shipping container...

Страница 4: ...ith material safety data sheet s MSDS for all the materials that your blower has been exposed to in your system BEFORE they disassemble it Steps 1 Remove the two end cap retainer screws using the 3 8...

Страница 5: ...ers are warranted for one year VAC warrants that it will repair or furnish F O B its factory a replacement provided a part is found to have been defective at the time it was received and further provi...

Страница 6: ...AL CHECKOUT 3 1 3 3 LEAK CHECK 3 3 3 4 INITIAL REGENERATION 3 7 3 5 ESTABLISHING AN INERT ATMOSPHERE 3 10 4 OPERATIONS THEORY 4 1 4 1 GENERAL 4 1 4 2 PURIFIER 4 1 4 3 CHARGE 4 3 4 4 OXYGEN REMOVAL 4 4...

Страница 7: ...OW DIAGRAM REGENERATION PROGRAMMER CHASSIS ASSEMBLY HE 493 INLETS TO GLOVE BOX PURIFIER ASSEMBLY CUTAWAY 2 4 OXYGEN RECOVERY RATES GAS FLOW DIAGRAM 3 4 3 6 4 2 4 6 HE 493 SCHEMATIC DIAGRAM REGENERATIO...

Страница 8: ...acing all the air from the box with dry inert gas This inert gas is then continuously cycled through a purifier which removes moisture and oxygen contamination from any source such as 0 Diffusion thro...

Страница 9: ...egeneration cycle In some applications this pump may also be used to evacuate the glove box ante chamber 1 3 MODEL VARIATIONS The HE 493 is the only single purifier 5 cfm ORI TRAIN manufactured by Vac...

Страница 10: ...141C_________________Vacuum Atmospheres PURIFIER REGENERATION PURGE GAS VAC PUMP ORI LAB Figure 1 1 DRI TRAIN DRI LAB Simplified System 1 3 HE 493 R2 2 84...

Страница 11: ...pheres Rege Contr Circulation Valve Inlet to HE 493 irculation alve utlet from E 493 Figure 1 2 HE 493 DRI TRAIN Standard mounting on left end panel of DRI LAB PURIFIER Figure 1 3 HE 493 DRI TRAIN Fro...

Страница 12: ...141C_______________Vacuum Atmospheres Purge Inlet Valve Heater Connection Vent Valve Figure 1 4 HE 493 Assembly 1 5 HE 493 Rl 2 84...

Страница 13: ...ty 136 liters at STP and 1 ppm contami nants Retort is isolated from the circulation system reactant and absorbent are heated with a stain less steel sheathed heater inside the purifier column Separat...

Страница 14: ...s from glove box to purifier Acts as circulation valve during normal operation Acts as isolation valve during regeneration process Operated manually CIRCULATION OUTLET VALVE Outlet for inert gas which...

Страница 15: ...se Evacuates the system 1 3 LIST OF CONTROLS AND INDICATORS Controls REGENERATE CIRCULATE and OFF cycles of ORI TRAIN Indicates Regeneration Cycle mode i e START HEAT PURGE VACUUM right to left On Reg...

Страница 16: ...ORI LAB Damage to plumbing may result If HE 493 purifier is charged keep in upright position For charging instructions refer to index at back of this manual INotel Refer to installation data provided...

Страница 17: ...ssembly System requires les than 4 hydrogen mixed with argon or nitrogen gas approximately 20 cfm required per regeneration Mixed gas is required only during regeneration of purifier Gas is to be pres...

Страница 18: ...ITY REQUIREMENTS SIZE OF UTILITY CONNECTION FLOW PRESSURE FUNCTION Regeneration 3 811 tube 1 3 cfm Approx 5 psi Used for purging the Forming Gas purifier Vent 1 411 npt 1 3 cfm Vent for regeneration f...

Страница 19: ...pheres FLOWMETER REGENERATION GAS LESS THAN 4 HYDROGEN PURIFIER K VACUUM CIRCULATION INLET R CIRCULATION OUTLET B N VENT LEGEND HAND VALVE B SOLENOID VALVE BLOWER DRI LRB Figure 2 1 HE 493 DRI TRAIN F...

Страница 20: ...3 2 ELECTRICAL CHECKOUT From this point on the HE 493 is assumed to be fully assembled all utilities connected and connections made to a glove box should be made to ensure all joints are tight before...

Страница 21: ...rn REGENERATE OFF switch to REGENERATE Turn timer ccw to purge cycle until you hear click of solenoid engaging Turn timer ccw to VACUUM Apply _voltmeter again across heater elements in J box to ensure...

Страница 22: ...ak detector if possible Do not use halogen leak detection equipment for leak testing Halogens are harmful to seals copper and other materials used in the construction of VAC equipment VAC wi11 not ass...

Страница 23: ...izontally and pressure raises to 4 POS Watch closely the Black needle ofthe Photohelic or the Yellow lights ofthe SSGgauge for any drop in pressure Any drop in pressure simply tells you there is a lea...

Страница 24: ...PPM condition The bulbs should be 25 to 40 watts I 00 watt bulbs may burn out from thermal shock even at a 1 PPM condition Use a torch or hot rod to break the bulb ifthis should produce only a very sm...

Страница 25: ...the dunk in water test Ifgloves check OK use bubbles solution and check the entire Dri Lab See also Symptom 6 Symptom 5 The blower is ON The automatic pressure control limits are set at 3 POS and 2 NE...

Страница 26: ...7619 Ot 4646 ST 9038 YACflt J VlCfllB3 1 VACfllOA 82608 YACUD54l VACf7625 2 I 2 2 2 2 I I I I I s rn rn rn rn rn I d I s 0 bO 0 Pi i NlJfC PT OR c r R Et 0 IUJ88ER covcRFD WIR o z 1S LG I d TE rl i ST...

Страница 27: ...VAC_________________________Vacuum Atmospheres Deleted 5 HE 493 R 1 2 84...

Страница 28: ...VAC_____________________Vacuum Atmospheres Figure 3 3 HE 493 Inlets to Glove Box 3 6 HE 493 7 80...

Страница 29: ...es because the oxygen reactant in a purifier is shipped in a completely saturated condition While this section provides procedures for regeneration Section 4 gives a more theoretical description of th...

Страница 30: ...hich may be used in ORI BOXES equipped with ORI TRAINS Inert Gases nitrogen argon helium etc Hydrocarbons ethane ethylene propane propylene n butane isobutane butylene butadiene isobuty lene pentane c...

Страница 31: ...TRAP SHOULD BE INSTALLED IN THE LAB OR IN THE CIRCULATING LINE AHEAD OF THE TRAIN D Close Circulation Inlet and Circulation Outlet valves A B E Turn REGENERATION TIMER indicator counter clockwise to...

Страница 32: ...the following steps A Turn PEOATROL ON B Set left indicator to approximately 5 inch positive and the right indicator to approximately 4 inch positive C Remove the plug from one of the service ports of...

Страница 33: ...t regulator to 20 psi replace service port plug and then reset Photohelic pressure limit as desired INotal For initial startup proceed to Regeneration Proce dure Paragraph 3 5 For startup after purifi...

Страница 34: ...the process of regenerating the purifier paragraph 4 8 Oxygen and water removal the blower and the vacuum pump will also be discussed in this section 4 2 PURIFIER The purpose of the purifier is to rem...

Страница 35: ...7 0H PORT 5 STORE l V VPl r GN7 POS 7 0N Wl7 H VALVE CLOSED TO Pt rESERVE HO ECtll AR SIEVE AND TO KEEP M l l 11 Sr l r 47 l IEO 3 41 BS MOLECULAR SIEVE 0 SI BS QS 4 1 8S HOI ECULAR SIEVE 0 SEAt r REA...

Страница 36: ...However poisonous substances can cause contami nation which would necessitate refilling the purifier canister These poisons are listed in Table 3 2 of this manual and the warnings pre sented should be...

Страница 37: ...Alumina Matrix developed by the Dow Chemical Company The QS operates at ambient temperature and down to 80 C 112F Oxygen removal is possible at space velocities of more than 6 000 volumes of gas volu...

Страница 38: ...s reduced At a bed temperature of 5 C 40 F capacity is increased to 0 080 gm H20 gm sieve 4 6 LEVELS OF PURITY ATTAINABLE In most cases it is practical to attain less than 1 ppm of oxygen and 5 ppm wa...

Страница 39: ...storing purification capability to the purifier To do this two general actions must take place 0 The moisture trapped by the molecular sieve must be removed com pletely 0 The oxygen must be removed fr...

Страница 40: ...ce a week if customer s processes produce corrosive or normally harmful vapors that tend to saturate the contents Normal regeneration is about once a month It should be mentioned that regeneration is...

Страница 41: ...imer indicator REGENERATE CIRCULATE switch 5 amp breaker printed directions for regenerating the purifier The regeneration time cycle shows START HEAT PURGE and VACUUM read ing from right to left as s...

Страница 42: ...tmospheres FLOWMETER PURGE REGENERATION GAS LESS IBAN 4 HYDROGEN PURIFIER K VACUUM CIRCULATION INLET A CIRCULATION OUTLET B N VENT LEGEND HAND VALVE B SOLENOID VALVE 1 Figure 4 3 Gas Flow Diagram 4 9...

Страница 43: ...pump or equivalent is required during regeneration of the HE 493 and during pressure control of the glove box The vacuum pump runs continuously when main outside power is on Informa tion on the vacuu...

Страница 44: ...furnished 5 1 2 Leak Testing Instructions herein are standard and may have to be modified for custom systems Do not use halogen leak detection equipment for leak testing Halogens are harmful to seals...

Страница 45: ...REGENERATE 0 VACUUM valve open 0 After the system is totally evacuated spray helium on all joints and components Any leaks even small ones will be detected INotel The vacuum leak check covers not only...

Страница 46: ...sheet for the type of vacuum pump supplied as a part of each technical manual shipped with all ORI TRAINS See Appendix A at the end of this manual 5 1 4 Lines Connections Periodically or at recommende...

Страница 47: ...will be made here to explain the basic procedures normal to tracing the flow of electrical current in the HE 493 This schematic is straightforward and a basic knowledge of electrical troubleshooting i...

Страница 48: ...e programmer would be a failure of the timer to progress from START This would indicate that the built in motor is not running See Figure 5 2 _ If power is present at the motor and it does not run rep...

Страница 49: ...EPRAWN G l BLOWER CIRCULATE UC HT R GE NERATE LIGHT VACUUM VALVE HEAT R PURGE VALVE VENT VALVE TIME MOTOR NOTES EF VAC f W6 co e 4 C09721 W IUN4 IAG RAltl fl VACUUM REMAINS ON IJNrll REGENERATE 5WlrC...

Страница 50: ...d molecular sieve and there will be no conversion of the saturated Ql If the valve 11 freezes11 in the deenergized position excess pressure might build up in the purifier during heating Purifier may o...

Страница 51: ...nnot perform its function of removing oxygen and moisture from gas circulating through it The purifier will not be evacuated during the regen eration process and the waste products generated as moistu...

Страница 52: ...If either of the manua1 inlet out 1et valves fail the following would occur Inert gas cannot be circulated and purification will not occur FAILURE TO CLOSE T he glove box wi11 be evacuated and purged...

Страница 53: ...VAC_________________________Vacuum Atmospheres Figure 5 2 Regeneration Programmer Detail 5 10 HE 493 R1 2 84...

Страница 54: ...rculation Inlet and Outlet valves A B are not completely closed or debris stuck in valves B Vacuum valve K malfunction C Purge valve J and Vent valve N malfunction s This could cause increase or decre...

Страница 55: ...to make them leak free under light gas conditions such as those which are common to ORI TRAIN applications Most valves used by VAC are reworked and fitted with special 11 0 rings 6 3 CIRCULATOR The C...

Страница 56: ...IST HE 493 ITEM SYMBOL DESCRIPTION VAC NO 1 Circulator Blower 3093 1 2 Purifier Assembly 09685 3 J K V Solenoid Valves 3 1283 4 Switch 2 PST 1054 5 Control Box Assembly 014645 6 J Box 1146 1 J Box 130...

Страница 57: ...Safe Unsafe 3 2 Circulator Blower 2 2 5 1 2 4 8 6 3 FIGURE Components 1 2 Controls Indicators 1 3 Dimensions 1 4 1 1 Electrical Checkout 3 2 3 1 Requirements 2 2 3 2 1 Flow Rate 1 1 Functional Descrip...

Страница 58: ...Removal 4 4 Plumbing Connections 2 2 2 1 Power 1 1 Purifier 4 2 l l 4 l 1 2 Regeneration Cycle 3 5 1 Gas 2 2 1 2 l Initial 3 5 Programmer 4 7 1 1 1 3 1 5 3 1 3 2 Replacement Ordering 6 5 Parts 6 2 6...

Страница 59: ...___________________Vacuum Atmospheres INDEX PARA TABLE Vacuum Leak Check 3 3 1 Pump 1 2 1 2 2 2 2 2 1 4 9 6 4 Appendix Valves 3 5 1 1 2 Vent 2 2 4 Warnings 3 5 1 3 2 4 3 1 Water Removal 4 5 I iii FIGU...

Страница 60: ...C_______________________Vacuum Atmospheres APPENDIX A VACUUM PUMP...

Страница 61: ......

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