The enriched teg then continues into the internal heat exchanger, which is incorporated at the top of the still column in the regeneration section of the absorption unit. They consist of two contactors and a single overload relay assembled together. If the gas contains free liquid impurities it can be cleaned in a pretreatment ko drum either integrated within the column or an. The basics of contactors commercial electric products. When someone uses a lighting contactor in a motor application, thats a misapplication. A failure of the seals between the glycol contactor and the vaporliquid separator can result in losses of teg, which would be hard to trouble shoot. The term relay is used in the electronics industry and is usually applied to switching. The typical contactor is provided with internals like inlet device, chimney trays, trays packings and demister. An optimized teg contactor design, when determined in the early project stage, will bring significant weight, space, and cost savings. The teg process the water saturated gas feed enters the gasglycol contactor column in the bottom section via a suitable vapour distributor. For more than 30 years repco has built a solid reputation for quality. Data sheet citi contactors and motor starters type ci 6 50. Pall highefficiency coalescers merge small droplets of liquid into larger ones as the fluid stream passes through several layers of filter media, each with progressively larger pores.
Teg contactor manufacturers in pune, teg contactor suppliers. Teg to gas contactor is limited to 10f to 15f above the inlet gas temperature. A failure of the seals between the glycol contactor and the vaporliquid separator can result in. Glycols typically seen in industry include triethylene glycol teg, diethylene glycol deg, ethylene glycol meg, and tetraethylene glycol. During the process, fresh lean teg enters to the absorption column at the top side. Schaltbau has been manufacturing dc contactors for over 80 years. General electric contactor and starter contact kit. Product data sheet 3rt10566af36 contactor, 90kw400vac3, ac40. Glycols typically seen in industry include triethylene glycol teg, diethylene glycol deg, ethylene glycol meg, and tetraethylene glycol treg. The typical contactor is provided with internals like vane inlet device vid for gas distribution. If the gas contains free liquid impurities it can be cleaned in a pretreatment ko drum either integrated within the column or an external vessel using a good quality mist eliminator. Optimizing effective absorption during wet natural gas. Contactor combiners come in 175, 250, or 350amp versions. Contactor fails to hold no no check the control circuit and the coil for an open circuit.
This is a dacron316ss composite mesh pad designed specifically for teg dehydration service. Owned and operated by asap semiconductor, we have access to an inventory of over 6 billion new and obsolete parts such as. The condensate that was carried over into the contactor was vaporized in the vent system of the glycol regenerator and restricted the capacity of the whole plant. Contactor relays contactor relays contactor relays are often used in control and regulating functions. Introduction repco is the industryleading source for replacement electrical contacts for industrial motor controls. Decreasing contactor temperature could increase performance. Power power coil gets ground from mounting bracket. They are used in large quantities for the indirect control of motors, valves, clutches and heating equipment. V10, aspen hysys can be used to model dehydration with teg, meg and deg. This is a common type of contactor, sold by vans aircraft and others. Reversing threephase, full voltage magnetic starters are used primarily for reversing of 3phase squirrel cage motors. Contactor aircraft parts catalog if youre in search of contactor or any other aircraft part type, asap purchasing is the place for you. This figure indicates that as the contactor temperature increases, the teg vaporization loss from the regenerator top increases. It is the most common and economical means of water removal from these streams.
Lv variable frequency drives and soft starters full catalog power and controls products catalog. The teg contactor can be either structure packing or bubble cap trays. Contactor relays 52 contactors dil, overload relays z 58 contactors dil 514 overload relays z 520 zeb electronic overload relay 523 zev electronic motorprotective system 526 thermistor overload relay for machine protection emt6 533 cmd contactor monitoring device 536. They can also be configured to automatically disconnect whenever the building loses power or the master system disconnect is thrown in the event of a fire or other emergency, thereby deenergizing the conductors between the combiners and inverter. Contactors contactor is most important mass transfer equipment in teg dehydration since its performance has crucial impact on downstream processes. Unbeatable prices and exceptional customer service from webstaurantstore. Weight of 3phase motors operational auxiliary complete with code 5060 hz in category ac3 current contacts indicating control in ac3 per circuit voltage 2 up to contactor fixing, 440v cabling 3 220v 380v 660v. Smith 2 describes how glycol contactor normal operating ranges can be extended from 50140f to temperatures as low as 31f. The braking contactor will energise after a brief interval and the motor will, instructions supplied by mte. The moisture in teg is further soaked by recycling a small quantity of dry gas generated in the first column. At low temperature and high pressure, the glycol absorbs more light hydrocarbons, decreasing the solvent viscosity. Includes prices, stock availability, technical data and photos. No no no yes does the holding or sealing circuit close.
When the start button is pushed power applied to timer, the on delay timing. Pdf sensitivity analysis and simulation of teg dehydration unit. Always ensure relays contactors are rated for the voltage and current applied. Ratings of a contactor are given according to the pole of the contactor. Pdf abstract in the operating of teg dehydration unit in central rumaila. Liability for improper incorporation, assembly, use, processing, storing or. This work dehydration of natural gas using triethylene glycol teg as. Contactor k value activity coef k value a, lkv teg regenerator heat balance design current dehydrated gas, mmscfd water content, lbmmscfd rich teg in f water stripping gas in scfgal scfm temp lean teg out, gpm effluent gas out water out lbhr gas reflux in out water heat, glycol heat gas heat reflux desup, ovhd mw gas cp teg cp gas cp. Estimating teg vaporization losses in teg dehydration unit.
Teg contactor for gas dehydration fenix offers complete process. Operating mechanism screw terminal general technical data. Teco cu11 magnetic contactor, 24v coil 3a1b nc replaces. Teco cu11 magnetic contactor for 5hp motor at 208220v3 phase, 24v coil 3a1a normally openmake sure you order the right coil voltage. Contactor coil power supply v warning this system operates only on regulated 24vdc with agrowteks 24vdc relays and components.
Teg is used in about 95% of the glycol dehydration units for natural gas streams. Glycol dehydration is a liquid desiccant system for the removal of water from natural gas and natural gas liquids ngl. Natural gas in the right conditions can combine with. Product data sheet 3rt10566af36 allied electronics. Tesys iec contactors and starters steven engineering. Replacements are stocked for general electric contact series. Electrical contactors, as shown in figure 1, are switches that are turned on and off with electrical power rather than with the direct push of a button or flipping a toggle switch figure 1 electrical contactor figure 2 plugin relay for all intent purposes, a contactor is a relay, as shown in figure 2. Lighting contactors 375 37 open control cn35 electrically held solidstate timers solidstate on delay timer side mounted on cn35 freedom series lighting contactors through 60a this timer is designed to be wired in series with the load typically a coil. Pdf improvement of teg regeneration in natural gas. It also depends on factors like fault withstand current, coil voltage and so on. The teg vaporization losses for three feed gas temperatures to contactor for stripping gas rate of 10 std m 3 m 3 teg 1. Teg contactor manufacturers in pune, teg contactor.
Repco stocks a complete line of replacement electrical contacts for general electric contactors and motor starters. Four glycols have been successfully used to dry natural gas. As droplets compete for the open pores, they coalesce forming larger droplets. Maurice stewart, ken arnold, in gas dehydration field manual, 2011. Introduction the membrane, and the dissolved oxygen from the feed. Search wegcontactoresyrelesdesobrecarga50036562catalogoespanol. Weg cwm contactors page 1 of 7 inverter drive supermarket. The basics of contactors contactors are useful in commercial and industrial applications, particularly for controlling large lighting loads and motors. Do not connect any power to the controllers inputs or outputs. The line contactor in the pbps unit should deenergise. Glycol dehydration units conventionally consist of a contactor, and a regenerator. Teco cu11 magnetic contactor, 24v coil, 3a1a, normally. Teg parameter definitions r reaction time the reaction time is the time from when the blood was placed in the teg analyser until the initial fibrin formation ie how long it takes for the blood to start to clot, and is therefore a measure of clotting factors k kinetic time.
The larger polymers teg and treg have the best properties for dehydration. The same is true when someone uses a normal operation motor contactor for motor jogging duty. Introduction water vapor is the most common undesirable impurity in gas streams. Deg, triethylene glycol teg and tetraethylene glycol. Yes check the control circuit for operations or check the wiring to the contactor auxiliary contacts. The gas stream is dried in contactor using counter current teg stream with temperature difference of around 3 6 deg c with that of gas stream. This figure indicates that as the contactor temperature increases, the. Coalescers bring down costs through advanced phase. These larger droplets are easier to separate from the continuous phase fluid. Presentation teg natural gas heat exchanger scribd. Now coming to the topic, i believe that there are a lot of graduate engineers like me who have little knowledge on the various processes. Contactor ac3 full load amperes fla 115 a fla 115 150 a fla 150 185 a fla 185 225 a fla 225 265 a fla 265 330 a fla 330 400 a fla 400 500 a fla 500 630 a fla 630 780 a fla 780 800 a fla 800 number of poles 2 poles 400 a, 500 a, and 630 a only 2 3 poles all sizes blank 4 poles all sizes except 800 a 4 termination optionspurchase lugs. Achieve better control of your electrical installations with these contactors.
The teg contactor, after absorbing moisture is regenerated using two columns the stripper and the regenerator. So first of all, a big thanks and kudos to the admins and senior members. Teg contactor contactor is most important mass transfer equipment. Rated operational current ie at rating of induction motors at 50 hz order no. Glycol gas contactor an overview sciencedirect topics. Contactors and relays contactor relays moeller wiring manual 0208 53 5 the system and the standard european standard en 50011 terminal markings, reference numbers and reference letters for certain contactor relays has a direct bearing on the use and application of the modular system. Contactor control unit solenoid fitted with varistor 3rt10 3x. Weg automation cwm contactor range available from the inverter drive supermarket.
The usual practice is to introduce, at the top of the glycol contactor tower, a solution of regenerated glycol with a concentration ranging from 97 to 99 %, and to remove the solution from the base of the contactor tower at a glycol concentration of 80 to 90 %8. C contactor a threephase starter b singlephase starter type 25 nonreversing contactors and starters c306 27 nonreversing starters xtob 30 nonreversing starters c440 eol 65 reversing contactors c 2 5 d n a 2 1 5 a a 1 6 1 8 4 contactor frame size a compact, singlepole b compact, twopole c compact, singlepole w. Wegcontactoresyrelesdesobrecarga50036562catalogoespanol. I dont think having an integral vaporliquid separator below the contactor is the most reliable system. Thats why you need to understand the basics of contactors. Dear fellow engineers, this forum ishas been helping and benefiting a lot of engineers around the world. Teg dehydration process posted in industrial professionals. Weg standard product catalog motors, enclosed motor controls, gears, and alternators weg automation catalog. However, like any other device, they are not infallible. Starter contactor starter contactor aka starter relay is an intermittent duty relay meaning it is designed to be turned on only for short periods of time. Dehydration with triethylene glycol teg is effective and has been successfully employed in both onshore and offshore facilities. In addition to the simplicity which they offer in project engineering, panel building, commissioning and maintenance, the high.
Our contactors can handle 50a250a and are rated for v usage. According to their rating, contactors are classified into the following. The regenerated teg is recycled back to the contactor. In most cases, the contactor does not simply wear out from normal use. Contactors, overloads and manual motor starters minicontactors and overloads up to 20 amps or 7. With the type s starter as a foundation, almost any motor control assembly can be constructed. Manage teg liquid and corrosion in sales gas pipelines. If structured packing is used here it should be designed for a maximum fs of 2. Usually, the reason for contactor failure is misapplication. In the stripper, moisture is removed from teg by heating generally employing a reboiler. Yes start is the contactor coil energizing and moving the contact assembly. Review of membrane contactors designs and applications of.
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