Pdgs dry gas seal upgrade for australian lng project. All cooling lines heating lines should be operating and remain so far at least a short period after equipment is shut down. Failure of this component in the compressor can resul. Store away from direct sunlight in a dry, cool and wellventilated area, away from incompatible materials see section 10. Intoximeters 22006001 this product was recently added by customer request, and is available for your convenience. This dry gas cylinder can be used with all intoximeters instruments. This seal is used in case that due to the nature of the product gas no additional back up seal is required.
Components dry gas seals dry gas seals, an alternative to isosleeve and isocarbon seals, eliminate the need for oil supply systems. Only for sale and available for use in north america the rbt iv is an alco sensor iv with a microprocessor. Both proven liftoff patterns have high film stiffness and damping capabilities that maintain the gas film under slow roll conditions as well as high speeds up to 250 ms 49,212 fpm. Outboard of the dry gas seal is a barrier seal, which separates the gas seal from the compressor shaft bearings fig. Do not allow the subject to exhale before hisher lips have a seal on the. Tennessee bureau of investigation forensic services division. Koosha turbo compressor company was succeeded to design and manufacture dry gas seal test machine. How to prevent trips in dry gas seals turbomachinery. Cobaseal the next level of separation seal eagleburgmann. Our breath testers are known for exceptional quality, reliability and accuracy, and we are trusted around the globe by clients in over 90 countries.
Ensure the gas is clean and dryexternal gas for extended reliability filter filtered process gas clean dry seal gas is the module most importantprocess gas gas should be filtered fi fi to around 1 micron coalescing filters can be used to dry the gas heaters can be used to provide superheat heat tracing should be used to. View online or download intoximeters alcosensor fst operators manual. Processdesign considerations for a compressor drygas seal. The intoximeters alcosensor fst fst is a pocketsized, handheld breath alcohol tester with a symmetric design and rearfacing display, which allows an operator to remain aware of the subject and surroundings.
Not to run the equipment dry while checking motor rotation. Intoxilyzer 8000 cmi intoxilyzer breath alcohol testers. Perform a supervisor test on the instrument monthly not to exceed 31 days. Dry gas is most commonly used for calibration since it is both economical, convenient and portable for field use. The gaspac is a standardized modular design in various configurations. Arkansas department of health intoximeter ecir ii senior operator training manual office of alcohol testing box 8509 little rock, arkansas 722158509 501 6612287 fax 5016612258 arkansas breath testing intoximeter ecir ii senior operator training manualthis manual is provided for information purposes.
The dry gas seal performs the principal sealing function, while the carbon ring seal protects the dry gas seal against bearing oil contamination and guards against. Intoximeter ecir ii senior operator training manual office of alcohol testing box 8509 little rock, arkansas 722158509. A convergence of technologies and experience from the trusted names in gas seal and system manufacture, application, and retrofitting, our heritage durametallic. The dry test meters are used for field or laboratory testing of various hydrocarbon or other noncorrosive gases to obtain highly accurate volume measurements. Its small, easy to use and offers multiple testing modes to meet all of your testing needs. Oct 03, 2012 ensure the gas is clean and dryexternal gas for extended reliability filter filtered process gas clean dry seal gas is the module most importantprocess gas gas should be filtered fi fi to around 1 micron coalescing filters can be used to dry the gas heaters can be used to provide superheat heat tracing should be used to. The components of this gas mixture are subject to the reporting requirements of sections 302, 304 and 3 of title iii of the superfund amendments and reauthorization act, as follows. A small amount of gas 1 to 2 % leaks between the seal faces with the remaining volume flowing through the process side labyrinth into compressor cavity creating a barrier that prevents dirty process gas in compressor cavity from entering the seal. If you havent already done so, please call our technical services department at 800. Wear nioshmsha approved scba and full protective equipment. In addition, it is required for the student to have a working ebt instrument with printer, a valid dry gas standard with regulator and a partner who can act as a subject for the mock tests. Used properly, the dry gas standard provides hundreds of samples for any of the intoximeters hand. Intoximeter ecir ii senior operator training manual arkansas.
The advantages of dry gas seals over wet seal systems can be defined as follows. Tennessee bureau of investigation forensic services. Although john crane has always provided customer support and service on a genuinely global scale, an expanded network of service facilities offering rapid and easy access to stateoftheart gas seal testing and. Other issues were signs of elevated temperatures in the secondary dry gas seals, along. Dry gas seal systems the use of dry gas seals requires a system designed to supply sealing gas to the seal as a sealing and working fluid for the running gap.
Seal life in excess of 78 years is now seen in industry today common. Safety data sheet ghs product identifier other means of identification product type section 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Drygas seals dgs used in ultrahigh pressure gasreinjection systems are setting a new standard in offshore, deepwater applications. The front label of the gas standard states the value of the gas at sea level. Historically, dry gas seal vendors have set primary vent trip levels at three times the normal seal flow. Dry gas seals dgs used in ultrahigh pressure gas reinjection systems are setting a new standard in offshore, deepwater applications. We have 3 intoximeters alcosensor fst manuals available for free pdf download. After checking for a blank sample, the instrument proceeds to please blow. The stuffing box should always be vented prior to startup. Inboard of the dry gas seal is an inner labyrinth seal, which separates the process gas from the gas seal. Jun 28, 2016 one of several dry gas seal testers we have built. Notify the office of alcohol testing when the pressure of a dry gas standard cylinder is low or expired. Now offering roadside drug testing for law enforcement.
However, if the seal gas system is designed with the present 2010 best practice available features, increases in primary vent flow can be safely accommodated. Liquid and dirt contamination was regularly found between the seal faces. Initial equipment costs are less than alternative methods and the steps required are fewer. Students must have an adjustable webcam and a high speed internet connection set up and working prior to the webcam session. Prepare the dry gas tank according to its instructions. Approved dry gas standard use only dry gas standards approved by intoximeters for use with intoximeters instruments. The drygas method utilizes a portable calibration standard which is a precise mixture of alcohol and inert nitrogen available in a pressurized canister. Processdesign considerations for a compressor drygas sealsystem interface chung leong, independent consultant, and sanjiv goyal, fluor enterprises ments. Operational principles of the intoximeter ecir ii 6. More than 80% of centrifugal compressors today are manufactured with a dgs stahley 2001. Pdgs important note all the technical specifications are based on extensive tests and our many years of experience. For over 70 years, intoximeters has been the leading provider of breath alcohol testers. Intoximeters recommends that external accuracy checks and calibrations be performed using either a dry gas standard or wet bath simulator approved for. Drygas mechanical seals set a new standard in deepwater.
Intoximeters alcosensor fst operators manual pdf download. The appearance of liquids or even hydrates in the dry gas seals dgs may badly affect their troublefree operation. For a more complete description of dry gas seal principles of operation, see shah 1988. If the external standard isoutside of this range, the instrument will abort the test and a senior operator shouldbe contacted. The pros and cons of dry gas seals installation in an. In 2007 national patent analytical systems intoximeter, manufacturer of the datamaster and datamaster cdm. Do not allow the subject to exhale before hisher lips have a seal on the mouthpiece. Intoximeter ecir ii senior operator training manual. The dry gas method utilizes a portable calibration standard which is a precise mixture of alcohol and inert nitrogen available in a pressurized canister. This system is designed to evaluate dry gas compressor seals and it automates the 46 hour testing that is performed on each set of seals. Gas cylinders may rupture violently when exposed to fire. Replaces the wet bath simulator which was present on the datamaster. Intoximeters 108 liter dry gas tank 100 davtech analytical. Notify the office of alcohol testing when the pressure of a dry gas standard.
There are two basic types of gas seal systems differential pressure d p control. Draeger alcotest 9510 for legal professionals enter instructors name washington state patrol. The imo guidelines for inert gas systems, sections 3. This paper is intended to highlight the considerations when applying dry gas seals dgs. Dry gas seal testing and repair now available locally. Store away from direct sunlight in a dry, cool and. Make certain there is a good seal between the connector and the mouthpiece. Intoximeter ecir ii senior operator training manual pages 51. Intoximeters will send check sheets and a sample logbook prior to the video conference.
The gaspac seal is a proven design using either the bidirectional tgroove technology or the advanced pattern groove apg technology. A dry gas seal is a mechanical seal that uses a sealing gas to create a barrier between the process gas and the. Design enhancements on dry gas seals for screw compressor. Processdesign considerations for a compressor dry gas seal system interface chung leong, independent consultant, and sanjiv goyal, fluor enterprises ments. As this product is a gas, refer to the inhalation section. Intoximeter ecir ii senior operator training manual pages 1. Centrifugal compressor wet seals seal oil degassing and control. Applications elster american meter dry test meters are used for field or laboratory testing of gas unsaturated with water vapor. Intoxilyzer 500 cmi intoxilyzer breath alcohol testers. Dry type deck water seal functions the dry type deck water seal has an upper reservoir drop tank and a lower reservoir sealing tank. Dry gas seals for compressors mechanical seals compressor seals gaslubricated seals rely on excellence. Processdesign considerations for a compressor drygas. Intoximeters 108 lt 038 drygas standard manufacturer.
Flowserve gaspac dry gas seals incorporate non contacting liftoff technology to provide low break away torque and reliable performance under all operating conditions. Two ethanol dry gas cylinders mounted on the rear of the instrument. The intoxilyzer 8000, while utilizing case law documented infrared spectroscopy as its method of analysis, is the first breath alcohol instrument in the industry to implement sample analysis at 3mm and 9mm wavelengths, delivering unparalleled accuracy and precision to. Tank contains a singlephased mixture of nitrogen and ethanol. Page 1 page 2 warranty page 3 page 4 table of contents page 5 page 6 page 7 general information page 8 storage page 9 operating principles page 10 theory and design of the alcosensor fst page 11. Used intoximeters alcosensor rbt iv breathalyzer for sale. If one of those heaters is not working, this will be displayed. The simplest seal is a dry gas seal in single arrangement. View and download intoximeters alcosensor fst operators manual online. This particular unit is installed in japan and can spin a set of dry gas compressor seals at speeds up to 30,000 rpm while pressurizing them up. T certified traceable gas offers the highest quality evidential standard available. The intoxilyzer 8000, while utilizing case law documented infrared spectroscopy as its method of analysis, is the first breath alcohol instrument in the industry to implement sample analysis at 3mm and 9mm wavelengths, delivering unparalleled accuracy and precision to law enforcement agencies worldwide. Centrifugal compressor wet seals seal oil degassing and. We are the leadingedge service provider for dry gas seal retrofits, high end compressor seal troubleshooting, seal support engineering and world class gas conditioning systems.
Intoximeter ecir ii senior operator training manual pages. Intoximeters 108 lt 038 drygas standard 108 lt 038. Vidac high pressure testers include a full complement of support equipment. Dry gas seal testing and repair now available locally dec 02, 2004 although john crane has always provided customer support and service on a genuinely global scale, an expanded network of service facilities offering rapid and easy access to stateoftheart gas seal testing and refurbishment also ensures 247 service on a local level. Please wait instrument warming up some components of the intoximeter ec ir ii are heated to prevent condensation inside the instrument. Intoximeters definition of intoximeters by the free. Intoximeters definition of intoximeters by the free dictionary. The universal gas seal for centrifugal compressors. Wet bath simulators require a power outlet and as such are less portable than dry gas. Dry gas cannot be transported by plane in your luggage or carryon. Insure that the installation, instruments, and operators are currently certified.
Mechanical seals compressor seals gaslubricated seals. The intoximeter ecir ii is manufactured by intoximeters, inc. The instrument is designed to test itself with the internal dry gas standard every sunday at 11 am. The pros and cons of dry gas seals installation in an existing synthesis gas compressor six years ago, in 2000, the petrobras ammonia and urea plants located in the petrochemical complex of camacari, brazil, were revamped in order to increase the capacities to 1500 metric tonday, in both plants. The information found in dry gas seals handbook will help you make informed decisions regarding the application, operation, and maintenance of dry gas seals. Pbt dry gas contracts the following pbts are approved. Summary the drygas seal dgs is a critical integrity component of the centrifugal or screw compressor, providing shaft sealing and preventing uncontrolled escape of process gas from the casing.
For this portion of the class you must have a working ebt instrument with printer and a valid not expired dry gas tank. The intoximeter ecir ii will give a warning before it. Intox leaders in breath alcohol testing since 1945. The oilfilm seal commonly used in earlier compressor designs has been mostly phased out by dgss. Dry gas cylinders are potentially affected by ambient pressure.
After analyzing the dry gas standard, the instrument will purge itself in order tocleanse the system. This book presents a complete guide to the technology, from the principle of gas seal operation to lessons learned from actual field experience. Leaving the regulator attached may result in a leak. These gas seal systems are normally supplied by the compressor oem mounted adjacent to the compressor. Notify the office of alcohol testing when the pressure of a dry gas standard cylinder is. Dgs, the correct operation of the sealing system is. The equipment is also portable allowing calibrations to be done when and where required.
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