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Small glass provides security for liquefied natural gas

international natural gas technology and equipment exhibition: Schott presents glass metal seal penetrations specially provided for liquefied natural gas pumps

Landshut (Germany)/Amsterdam (Netherlands), March 21, 2011 - liquefied natural gas (LNG) pumps have high requirements for product safety. Since the above air pump is immersed in expensive liquid natural gas, its products must have a high degree of air tightness. The high pressure of liquefied gas and the low temperature of -162 ℃ also put forward extremely stringent requirements for the quality of the electrical penetration of the gas pump. At the 25th International Natural Gas Technology and Equipment Exhibition (GASTECH), held in Amsterdam (Netherlands), Schott will exhibit the company's unique glass metal compression sealing technology. This technology provides the safest solution for data exchange of electrical instrument control signals and power supply connection in the field of liquefied natural gas applications

natural gas has become the third most important energy in the world. At present, 30% of natural gas is transported by special ocean going ships. In order to transport as much natural gas as possible, the natural gas is cooled to minus 162 degrees Celsius before shipment. This means that there are 600 times more natural gas than can be stored at normal temperature. Then, liquefied natural gas (LNG) is injected into the closed tank on the transport ship or the gas storage tank in the port through the gas pump, or into the vaporizer, so as to convert LNG into gas

modern oil tankers can use the closed tanks on board to transport up to 264000 cubic meters of liquefied natural gas. In order to load and unload these gases, three or four high-power electric pumps are installed on the cladding of each closed tank. Since the electric pump is completely immersed in liquefied natural gas, a chassis is required to ensure the safety of the electric pump under adverse conditions. The electrical penetration assembly is the only sealed connection equipment used to connect the three-phase power supply, control system and instrument equipment to the liquid natural gas tight closed tank

"our glass metal sealing technology has set safety standards for the electrical penetration industry in the past three decades," Ulrich, sales director of the energy security department of Schott electronic packaging business unit in Landshut, Germany? Mr. Ulrich Dirr said, "our connected electronic control and instrument electrical penetration assemblies have also reached a high level of safety. In fact, we are the only supplier that provides products that meet European ATEX standards and IECEx international explosion-proof electrical product certification." Li - Shi added

each glass metal seal penetration of Schott's liquid gas shall bear 1.5 times the maximum design pressure, and then its sealing, electrical strength and insulation shall be tested with helium mass spectrometer to verify the reliability of the penetration. The products are respectively put into operation in the futures market of the power penetration. The maximum design voltage of the project is up to 11000 volts and the current is more than 1000 amperes, while the maximum design voltage of the electronic control and instrument penetration is 28 volts and the current is 4 amperes

Schott can not only provide electrical penetration assemblies with different diameters according to the needs of customers, but also has two standard products. The leading electrical penetration mode has a diameter of 2 inches and 10 pins; The second mode has a diameter of 2.5 inches and 16 pins. Schott's unique design allows these pins to span longer distances. This helps the explosion-proof elements to be free from interference and ensures the electrical clearance and creepage distance. After all, the high-speed counting of the motor and the stability of the vibration detection signal are the key factors to ensure the long-term life of the electric pump

Schott electronic packaging division is a leading manufacturer of housings and other components that provide long-term and reliable protection for sensitive electronic components. Its core technologies include glass metal and ceramic metal sealing technology, thermal components and a series of advanced special glass manufacturing technologies. In Schott's five major production bases and multiple technology centers around the world, a total of 1500 employees wholeheartedly provide local customer support for global leaders in the automotive, data and communications, sensors and semiconductors, consumer electronics, dental care, home appliances, lasers, security and tracking industries, and seek common development with customers through successful packaging solutions. For more information about Schott's electronic packaging division, please click:

Schott group is a multinational high-tech group company that has been developing and manufacturing special materials, components and systems for more than 125 years. The main business areas of the company are household appliances, solar energy, medicine, optics, electronics, automobile industry and construction. With its high-quality products and cutting-edge solutions, Schott has always been committed to helping customers around the world succeed and become an indispensable part of people's lives. In its main markets, Schott Group maintains close communication with customers through its manufacturing and sales companies. The group has about 17500 employees, with global sales of 2.9 billion euros in the 2009/2010 fiscal year. The company closely links its technological and economic advantages with its social and environmental protection. At the same time, the company strongly supports the principle of sustainable development. Schott Co., Ltd. is an enterprise under Carl Zeiss foundation

picture No. 210589: Schott glass metal seal penetration provides power supply protection for gas pumps, control equipment and instruments installed in LNG tanks, so the fixture design is relatively simple. Photo source: Schott group

No. 210936 photo caption: Mr. Ulrich Thiel, sales director of Schott energy security department, and Dr. Oliver Leeds, technical manager of Schott energy security department, conducted sealing test for liquefied natural gas equipment. Photo source: Schott group

No. 15905 photo Description: 2-inch diameter penetration with 10 pins; 2.5 inch diameter penetration with 16 pins. Photo source: Schott group

No. 99287 and No. 99288 photo Description: in order to load and unload liquid natural gas, the closed liquid natural gas tank on the ship (left picture) and the container on the shore need to be installed with an electric pump (right picture) to decompress the liquefied gas. Since the electric pump is completely immersed in liquid gas, a chassis is needed to ensure the safety of the electric pump under adverse conditions. The electrical penetration assembly is the only sealed connection equipment used to connect the three power supplies, control systems and instrument equipment to the liquid natural gas tight closed tank. Source: Schott group

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