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Dry Gas Seal
Dry gas seals are a type of mechanical seal used in various industries, including oil and gas, chemical, and petrochemical industries. These seals are designed to prevent the leakage of gas between the rotating and stationary parts of a machine, such as a compressor or pump.
There are many types of dry gas seals on Lepu dry gas seal manufacturers. Such as compressor gas seal, including centrifugal compressor dry gas seal, screw compressor dry gas seal, and also pump dry gas seal, sometimes there are some metal bellows dry gas seal, agitator dry gas seal.
Dry Gas Seals (DGS) are basically mechanical face seals consisting of a mating (rotating) ring and a primary (stationary) ring. During operation, grooves in the mating ring generate a fluid-dynamic force causing the primary ring to separate from the mating ring, thus, creating a “running gap” between the two rings. The running gap varies from 3 to 10 microns depending on the seal type.
Dry gas seals offer several advantages including increased reliability, reduced maintenance, and lower emissions. Dry Gas Mechanical Seals are also more resistant to contamination and can operate at higher speeds and pressures. However, they require a reliable source of clean and dry gas, and proper installation and maintenance are critical for their long-term performance.
Many compressors today are older than their predecessors, potentially preventing them from meeting the latest performance and environmental standards. Retrofitting these older units with the latest dry gas seal technology can improve operational performance, including reliability, service life, and productivity. Over 85% of centrifugal gas compressors manufactured today are equipped with dry gas seals. Because dry gas seals can also reduce a plant's environmental footprint while significantly reducing emissions.
Natural Gas STAR company have found that replacing these "wet" seals with dry seals significantly reduces operating costs and methane emissions.
Methane emissions from wet seals typically range from 40 to 200 standard cubic feet per minute (scfm). Dry seals, which use high-pressure gas to seal the compressor, emit less methane (up to 6 scfm), have lower power requirements, improve compressor and pipeline operating efficiency and performance, enhance compressor reliability, and require significantly less maintenance. A dry seal can save about $135,000 per year and pay for itself in as little as 14 months. For example, reduced emissions by 97 percent, from 75 to 2 Mcf per day, saving almost $80,000 per year in gas alone.
Economic And Environmental Benefits Of Dry Gas Seals
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Guangzhou Lepu Machinery Co., Ltd.
Add:
No. 5, Yunkai Road, Huangpu District, Guangzhou, China
Tel:
+86-020-36158139
+86-020-36158280
E-mail:
mark@lepuseal.com
Fax: +86-020-36158281
Contact Person: Mr. Mark Ao
Whatapps: +86-18903009893