آزمایش نشت یابی وکیوم هلیوم چیست؟

آزمایش نشت یابی وکیوم هلیوم چیست؟

فروش و تعمیر انواع پمپ های وکیوم و بلوئر های هوادهی
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آزمایش نشت هلیوم چیست؟
هلیم یکی از کوچکترین مولکولهای گاز است و بی اثر است. بی اثر بودن ، استفاده از آن نسبتاً بی خطر است و با هیچ یک از مواد موجود در قطعه مورد آزمایش واکنش نشان نخواهد داد. در بیشتر برنامه های آزمایش نشت هلیوم ، از یک طیف سنج جرمی (آشکارساز نشت) تنظیم شده برای تشخیص هلیوم استفاده می شود. همچنین می توان از مخلوط ۹۵٪ نیتروژن ۵٪ هیدروژن استفاده کرد. آزمایش نشت هلیوم به طور کلی حساس تر از استفاده از تکنیک های تحلیل فشار است. پوسیدگی فشار همچنین به شما امکان نمی دهد با استفاده از گاز ردیاب ، محل خاص نشت را مشخص کنید.

روش های تشخیص نشت
خلاac: تجهیزات مورد آزمایش با استفاده از آشکارساز نشت یا آشکارساز نشت در کنار پمپ خشن بزرگ تر تخلیه می شود. برای مشخص کردن محل نشت ، یک گاز ردیاب به بیرون تجهیزات وارد می شود.

استشمام: تجهیزات مورد آزمایش با گاز جستجو یا مخلوط گاز جستجو تحت فشار قرار می گیرند. از یک پروب اسنیفر متصل به دستگاه نشت یاب برای بوگیری محل نشت در تجهیزات استفاده خواهد شد.

بین این دو روش بسته به کاربرد خاص تغییرات زیادی وجود دار

What is helium leak testing?

What is helium leak testing?

Helium is one of the smallest gas molecules and is inert. Being inert it is relatively safe to use  and will not react with any of the materials within the part to be tested. In most helium leak testing applications, one uses a mass spectrometer (leak detector) tuned to detect helium. A 95% nitrogen 5% hydrogen mix can be used as well. Helium leak testing is generally more sensitive than using pressure decay techniques. Pressure decay also does not allow you to pinpoint the specific location of the leak using a tracer gas.

Leak Detection Methods

Vacuum: The equipment to be tested is evacuated using the leak detector or the leak detector in conjunction with a larger roughing pump. A tracer gas is applied to the outside of the equipment to pinpoint the leak location.

Sniff: The equipment to be tested is pressurized with a search gas or a search gas mixture. A sniffer probe connected to the leak detector will be used to sniff for leak location on the equipment.

Between the two methods there exist many variations depending on the particular application.

Helium Leak Detector Applications

Helium Leak Detector Applications

  • Semiconductor production
  • Vacuum coating
  • Research and development
  • Chemistry/pharmaceutical
  • Metallurgy/furnaces
  • Automotive industry
  • Laser engineering
  • Particle accelerators
  • Analytical engineering
  • Systems with cryopumps
  • Cooling and air conditioning
  • Electrical engineering
  • Mechanical engineering
  • Power plants
  • Systems engineering
  • UHV applications
  • Vacuum Furnaces
  • Lyophilizers
  • Vacuum Chambers

کاربرد نشت یاب هلیوم دتکتور Helium Leak Detector Applications

کاربرد نشت یاب هلیوم دتکتور Helium Leak Detector Applications

فروش و تعمیر انواع پمپ های وکیوم و بلوئر های هوادهی
۰۲۱-۶۶۷۹۱۷۷۵
۰۲۱-۶۶۷۹۱۷۷۶

برنامه های نشت یاب هلیوم
تولید نیمه هادی
پوشش خلاuum
تحقیق و توسعه
شیمی / دارویی
کوره های متالورژی
صنعت خودرو
مهندسی لیزر
شتاب دهنده های ذرات
مهندسی تحلیلی
سیستم هایی با سیستم های برودتی
خنک کننده و تهویه هوا
مهندسی برق
مهندسی مکانیک
نیروگاه ها
مهندسی سیستم ها
برنامه های کاربردی UHV
کوره های خلاuum
مواد روان کننده
اتاق های خلاac

Becker Vacuum Pumps پمپ وکیوم بکر

فروش و تعمیر انواع پمپ های وکیوم و بلوئر های هوادهی

Becker Vacuum Pumps پمپ وکیوم بکر
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Becker Vacuum Pumps

BeckerPumpSales.com is your complete source for Becker Vacuum Pumps. Becker’s selection of vacuum pumps includes oil-less and oil-flooded options. You can customize a pump to suit your specific needs. mdi can provide you with guidance when it comes to choosing the right pump for you. You can expect high-quality, long-lasting results when you choose a Becker Vacuum Pump. Our knowledgeable sales staff is here to help you find the right Becker Vacuum Pump to fit the job.

Parts for Leybold Vacuum Pumps قطعات پمپ وکیوم لیبولد

Parts for Leybold Vacuum Pumps قطعات پمپ وکیوم لیبولد

فروش و تعمیر انواع پمپ های وکیوم و بلوئر های هوادهی
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Parts for Leybold Vacuum Pumps

Precision Plus provides an extensive offering of Repair Kits and Parts for the full range of vacuum pumps for Leybold oil sealed rotary vane, oil sealed piston, dry scroll, semiconductor and industrial dry, mechanical boosters and turbo molecular pumps.

All Precision Plus parts carry our “form fit and function” performance guarantee and we use precision engineered, high quality parts in all of our vacuum pump repair kits.

We maintain a state of the art inspection and testing facility where all parts are checked for proper performance and fit. Every part we sell must pass a rigid and thorough incoming inspection process.

Precision Plus vanes for Leybold vacuum pumps are made from our proven high strength GX polymer similar to that used by many of today’s OEM pump manufacturers. This provides a durable vane that is both thermally stable and corrosion resistant for most vacuum pump applications. In addition to both minor and major repair kits Precision Plus also offers a wide selection of precision machined rotors, stators, claws, lobes, impellers and plates for most Leybold pump models.

The Precision Plus range of replacement parts and repair kits covers:

Direct drive oil-sealed vacuum pumps for the range of oil sealed rotary vane TriVac and SogeVac models including D1.6B, D4B, D8B, D16B, D16BCS, D25B, D25BCS, D40B, D40BCS, D65B, D65BCS, D2A, D4A, D8A, D16A, D16AC, D30A, D30AC, D60A, D60AC, D90A, D90AC, D8C, D16C, D30C, D40C, D60C, D1.2E, D2.5E, D5E, D10E, D16E, SV16, SV25, SV40, SV65, SV100, SV180, SV200, SV280, SV300, SV500, SV630, SV1200, SV10B, SV16B, SV25B, SV40B, SV65B, SV100B, SV120B, SV300B, SV500B, SV630B and SV750B.
Oil sealed rotary piston pump models including E75, E150, E250, DK100 and DK200.
Mechanical Booster pumps for the range of WA, WAU, WS, WSU and RA models including WA/WAU150/151, WA/WAU250/251, WA/WAU500/501, WA/WAU1000/1001, WA/WAU2000/2001, WS/WSU150/151, WS/WSU250/251, WS/WSU500/501, WS/WSU1000/1001, WS/WSU2000/2001, RA3001, RA5001, RA7001, RA9001, RA3001S, RA5001S, RA7001S and RA9001S.
Dry running Scroll pumps for the range of SC models including SC15D and SC30D.
Precision Plus repair kits are offered in a variety of configurations to ensure you get the parts you need and only the parts you need. Minor kits include all of the required shaft seals, gaskets, o’rings and other items required for light pump maintenance. Major kits typically include the components of the minor kits and in addition include vanes, bearings and other items required for more extensive pump maintenance. All of our kits components are also sold individually so that you may purchase only the items that you need.

Besides repair kits and individual parts, Precision Plus also supplies vacuum pump fluids and oils designed specifically for use in Leybold vacuum pumps.

Precision Plus maintains an extensive inventory of individual parts and vacuum pump repair kits to minimize lead times and just in time delivery helps you reduce your on-site inventory. Most orders received by 4:00 pm Eastern Time ship same day.

Ready to place and order or have a question or need technical assistance? Contact Us today to find out more about what we can do for you and experience world class customer service and support from our highly trained team of customer care and technical support representatives.

پمپ وکیوم وکیوم برند Vacuubrand vacuum pump

 

پمپ وکیوم وکیوم برند Vacuubrand vacuum pump

فروش و تعمیر انواع پمپ های وکیوم و بلوئر های هوادهی

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Bent u op zoek naar professionele vacuumpompen, zoals een draaischuifpomp, membraanpomp, ATEX pomp, chemisch bestendige vacuumpompen of juist een vacuumpump die niet chemisch bestendig is? Bij vacuubrandpompen.nl bent u aan het juiste adres voor vacuümpompen voor professioneel gebruik. Ook voor accessoires zoals vacuumslangen, aansluitingen of ventielen kunt u hier terecht.

How Liquid Ring Vacuum Pumps Work

How Liquid Ring Vacuum Pumps Work
Liquid ring vacuum pumps are rotating positive displacement machines providing process vacuum in industrial applications such as chemical, electrical power, environmental, food & beverage processing and packaging, marine, mining, oil & gas, pharmaceutical, pulp & paper, and textiles. Liquid ring vacuum pumps utilize water or other processes compatible liquid as the sealant. The simple operation, with no contacting parts, make liquid ring vacuum pumps a safe and reliable choice for handling dirty and potentially dangerous gas streams. Liquid ring pumps are available in single and dual stage designs and also configured as compressors for even more versatility.

Principle Of Operation
The seal liquid forms the ring inside a pump body as the impeller spins creating small chambers for gas to be trapped. The axis of the rotor is eccentric from the body allowing the liquid to almost fill, and then almost empty each rotor chamber during a single revolution, forming the compression of the gas for the pumping action. Vacuum inlet and atmospheric discharge ports provide flow paths for the gas mixture being handled. The heat of compression of the gas is dissipated into the seal liquid, and some of the liquid flows out to discharge. The exhaust gas and residual water discharge is separated from the gas stream and directed to the house exhaust and returned to the pump respectively. Seal fluid is replaced by a constant flow of cooler seal fluid.

Watch This Video To Learn “How It Works”

Characteristics Of Liquid Ring Vacuum Pumps
Accepts Carryover – Soft solids, moisture, slugs, chemicals and more will not harm the pump. These impurities will simply be washed out through the pump discharge.
Cool & Quiet Operation – The pump runs cool owing to the circulation of the sealing water inside the pump. The operation is relatively quiet – not exceeding 85 dBA.
Constant Operation For Any Vacuum Level – Pump can operate constantly and continuously at any vacuum level – from 29 in. Hg to atmospheric pressure.

Liquid Ring Technology How it Works
Easy Maintenance & Longer Pump Life – Liquid ring vacuum pumps are robust in construction and have only one moving part, the rotor, which is mounted on a shaft supported by a set of bearings designed for a long service life of continuous operation. This benefits the user with less wear and simpler, affordable maintenance.
Environmental – Pumps do not require an oil change, filter, oil-pans, condenser or etc. For that reason, plant rooms run clean, free of oil contamination and oil discharges to sewers.
A Look Inside A Liquid Ring Vacuum Pump
Flat Sided Liquid Ring Vacuum Pump
Conical Liquid Ring Vacuum Pump
The Technology Behind Liquid Ring Vacuum Pumps
The design technology behind liquid ring vacuum pumps is advanced to achieve optimum, reliable performance for the rigorous demands of harsh industrial environments. Liquid ring vacuum pumps are an economical and robust solution engineered to meet specific customer requirements.

Condensation Of Vapors Can Yield A Capacity Bonus
Dry air or a dry gas mixture is compressed from vacuum to atmospheric pressure in a liquid ring pump much the same way as it would be in any other displacement type pump, except that there is less of a temperature rise of the gas stream through the pump.

Humid air or gas mixtures containing condensable vapor behave quite differently. Some of the vapor that enters a liquid ring pump condenses when it is cooled by the lower temperature seal liquid. The condensate mixes with the seal liquid. Now, it occupies a much-reduced space as contrasted with its former volumetric dimension when it was a component of the inlet gas stream. This volumetric reduction becomes a capacity bonus.

The only vapor that can be condensed early enough to escape compression contributes to the inlet capacity bonus. In each rotor chamber, the condensation must occur before that chamber passes its inlet port. Any condensation that occurs after the cutoff will not have an effect on pump inlet capacity.

Liquid ring vacuum pumps can handle large amounts of liquid through its inlet port with a negligible reduction of gas capacity. To maximize the condensation bonus some of the liquid is often sprayed into the inlet piping, upstream of the vacuum pump itself.

Global Provider
Backed by over 110 years of experience, NASH CERTIFIED experts provide aftermarket support with maintenance, service, parts, and repair. Service centers are globally located to protect your vacuum system investment and provide quality, reliable, and efficient solutions.

Relat

Introduction to a Liquid Ring Vacuum Pump

Introduction to a Liquid Ring Vacuum Pump

Picture1Usually, a liquid ring vacuum pump is used as a rotating positive displacement vacuum pump but it can also be used as a gas compressor compressing gases to pressures above the atmospheric. As far as function, liquid ring pumps have similarities with a rotary vane pump but differences are crucial for achieving highest reliabilities and trouble-free operation. For instance, a liquid ring vacuum pump is designed with the rotor as being the only moving component. There are no metal-to-metal contact within the pump, no valves, no sliding vanes, no need for lubrication (other than outboard mounted bearings). The water provides the sealing while acting as the compressing media within the pumping chamber. Compression is isothermal with very little temperature rise during compression, low noise without silencers, low vibration, cool and safe operation.

How a Liquid Ring Vacuum Pump Works

Using some form of liquid (usual water), which is also referred to as sealant, compression is achieved as soon as pump is started and vacuum is created. Before the pump is started, there needs to be some liquid sealant inside, some of the sealant is discharged with the gas being pumped, the same amount of liquid must be replenished or sent back to the pump after it has Picture3been cooled. Based on the exact application, sealant can be water, solvent, oil or other liquids. Once the pump has been started, the sealant is slung by the impeller using centrifugal force to the outer walls of the body. With this, a ring of liquid is formed.

As mentioned, the impeller is eccentrically mounted within the pumping cylindrical casing, because of this some blades are almost out of the liquid ring while others are completely submerged. The volume without any liquid sealed between the liquid, Picture2impeller hub and impeller blades is occupied by the gas to be pumped away. As the impeller rotates the liquid begins to recede from the center hub serving as a piston drawing gas in, continuing with the rotation the impeller blades go deeper into the liquid ring thus impeller cells (pistons) compress the gas until discharged through the strategically placed discharge port. This action creates the liquid ring vacuum pump’s suction that draws in gasses and vapors through the inlet port. The outcome is compression. Gasses and a certain amount of liquid are exhausted through the discharge port to atmospheric or even higher pressure. Because some liquid sealant is discharged along with gases the same amount of liquid must be replenished or sent back to the pump after it has been cooled.

Getting Professional Assistance

As with all equipment, there are times when a vacuum pump needs to be serviced.

The professional team at Premier Fluid Systems is highly qualified for handling repairs and it is important to remember the Picture5team can

provide assistance with installation as well as start-ups

کاربرد اصلی پمپ وکیوم آبی در صنایع

شرکت صنایع وکیوم آسیا

The versatility and ruggedness of the  ASIA VACUUM Liquid Ring Vacuum Pump makes it a wise choice in a variety of applications:

Power generation equipment
Petrochemical
Seawater deaeration
Pharmaceutical
Ground water remediation/vapor extraction
Food production
Power generation equipment
The ASIA VACUUM liquid ring vacuum pump supplied to the power industry for condenser venting is a two-stage (two impeller) design housed in a single pump body. Our unique internal spray feature ensures the maximum amount of condensing before the gas enters the vacuum pump, much like a direct contact condenser. This feature allows the pump to handle more load because condensation ahead of the pump reduces volumetric flow rate. To achieve capacity requirements, some companies utilize a spray tee ahead of the vacuum pump and air ejector to achieve the design pressure, or even attach a second stage impeller housing to a single stage pump.

All ASIA VACUUM condenser venting equipment is designed to perform per HEI (Heat Exchange Institute). At , every condenser exhauster system we sell is designed to meet the venting capacity requirements specified per HEI at 1 inch HgA.

ASIA VACUUMis the only manufacturer that designs and builds Steam Surface Condensers, Liquid Ring Vacuum Pump Venting Systems, and Liquid Ring Vacuum Pump Waterbox Priming Systems. Our unique experience and understanding of how these systems work together allow us to provide the Engineering Answers the power generation industry requires.

Petrochemical
ASIA VACUUM has been producing Liquid Ring Vacuum Pump Packages for the petrochemical industry for many years. The applications where our liquid ring vacuum pumps have been utilized are diverse. Some common processes are cumene, phenol, ethylene glycol/ethylene oxide, ethyl benzene/styrene monomer, amines and alcohols, to name a few. We are experienced at supplying vacuum pumps and systems per the requirements of API specifications such as API-681, 610 and 682. As a regular supplier of ejectors, condensers, and heat exchangers to oil refineries, ASIA VACUUM manufactures ancillary system components to the exacting standards required by the petrochemical industry. Material requirements for sour service, such as NACE MRO-175-95 are not a problem.

Combine our liquid ring vacuum pumps with our ejectors and condensers for a hybrid package designed from the ejector suction to the separator discharge, all designed, manufactured and backed by a single company. With a multitude of experience in all of the system components, combined with petrochemical process knowledge, ASIA VACUUM can design and build the right system for any application.

Seawater deaeration
Looking for the leaders in seawater deaeration vacuum equipment? ASIA VACUUM has produced hundreds of vacuum pumps and ejectors for use on oil platforms throughout the world. You can find our equipment on oil platforms in the Gulf of Mexico, the North Sea, the Persian Gulf and across Asia. At the heart of our systems is our nickel-aluminum-bronze (AB2/BS1400) vacuum pumps, for which ASIA VACUUMis the industry leader in their production.

Nickel-aluminum-bronze offers the best of both corrosion resistance to seawater and economical pricing. It is not uncommon for ASIA VACUUM nickel-aluminum-bronze pumps to be in operation 10 to 15 years or longer than 316 stainless steel pumps in this harsh environment. Often, pumps in this service are supplied with Monel shafts and Xylan coated 316 stainless steel exterior bolting. Mechanical seal selection is determined by the application requirements.

Our deaeration systems don�t stop with the vacuum pump. Systems normally consist of the vacuum pumps, atmospheric air ejectors, baseplates, separator tanks, and other ancillary equipment, such as the motors, couplings, and guards.

Ejectors are normally supplied in 316 stainless steel or Monel. Baseplates are coated in a heavy-duty epoxy consisting of a primer coat, two intermediate coats, and a polyurethane finishing coat. Separator tanks are manufactured from fiberglass-reinforced plastic.

All of our deaeration systems and individual components are designed to work efficiently together, while offering years of trouble-free service.

Pharmaceutical
For drying, laboratory, vapor recovery, house vacuum and everything in between, rely on ASIA VACUUM liquid ring pumps. ASIA VACUUM regularly supplies equipment for use in the pharmaceutical industry. Our liquid ring vacuum pumps are operating in processes the world over, drying product and recovering organic vapors. Liquid ring vacuum pumps are utilized to provide house vacuum on production lines. The choice to utilize liquid ring pumps stems from their unbeatable reliability.

Laboratories often get their vacuum from liquid ring vacuum pumps. A liquid ring vacuum pump’s ability to handle slugs of liquid and low change in temperature across the pump, make it a common choice for laboratory systems where flammable mixtures may enter. Our system has also been used on less common applications, such as sampling and weighing equipment.

Ground water remediation/vapor extraction
Soil vapor extraction systems often utilize a ASIA VACUUM oil-sealed liquid ring vacuum pump for the vacuum source when low soil transmissivity conditions exist in the contaminated area. This condition requires a much greater vacuum to achieve acceptable vapor removal.

Oil sealed liquid ring pumps have many advantages in these applications. Due to the low vapor pressure of oil, a much greater vacuum can be achieved than with positive displacement blowers or even water sealed vacuum pumps. This allows extraction from wells greater than 30 feet deep. The oil sealed vacuum pump is used in a closed loop system and does not require water for sealing or cooling. This eliminates the need for treatment of contaminated water.

The ASIA VACUUM oil sealed liquid ring vacuum pump package consists of a ASIA VACUUM liquid ring pump, a vapor/liquid discharge separator, an oil mist coalescing filter, an air cooled heat exchanger, all associated piping, and necessary accessories for remote operation. Instruments provided can be explosion-proof rated. We can even supply the oil for the system.

ASIA VACUUM Corporation has a complete line of standard oil sealed liquid ring pump packages pre-engineered for soil vapor extraction and groundwater remediation application, or we can engineer a package to meet any particular specifications.

Food production
ASIA VACUUMliquid ring vacuum pumps are commonly used in the production of food. Most of the applications in the food industry are geared toward the removal of water. Concentrating fruit juice, adjusting the boiling point (temperature) of water during cooking, and flash cooling after a food item has been cooked are all common processes where liquid ring vacuum pumps may be found. Materials of construction for these systems are normally cast iron or 316 stainless steel. Many of these systems are supplied with a pre-condenser to remove most of the condensable load upstream of the liquid ring pump. This results in a much smaller vacuum system.

ASIA VACUUM manufactures pre-condensers specifically designed to work in conjunction with our liquid ring vacuum pumps in this service. The

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result is a single source of equipment supply and guarantee that the condenser and pump are designed to properly function together.