A method for manufacturing a medium-low pressure cylinder for absorbing natural gas, and a method for filling and using natural gas
A technology of low-pressure adsorption and manufacturing method, which is applied in the direction of container discharge method, container filling method, equipment loaded into pressure container, etc., to achieve the effects of strong gas storage capacity, good movement reliability and high safety performance.
Inactive Publication Date: 2012-02-08
NINGBO MEIKE ACETYLENE CYLINDERS
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Problems solved by technology
At present, due to the high level of container manufacturing in foreign developed countries, ANG containers still occupy a large market share; and only the adsorption technology is used to develop light-weight, special-shaped vehicle-mounted ANG containers; to report
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Embodiment 1- Embodiment 5
[0029] Such as figure 1 Shown is the cross-sectional structural diagram of the steel cylinder. According to the national standard GB 5100 "Steel Welded Gas Cylinder", the shell 1 is welded and manufactured by a professional manufacturer. The maximum limit pressure of the shell is 4.0MPa at 20°C, and the water pressure test The pressure is 7.5MPa (gauge pressure), and the nominal volume is not more than 75L.
[0030] Add natural gas carbonaceous adsorption filler 11 into the shell at a vibration frequency of 80-200 Hz; the specific surface area of the adsorption filler 11 is 1500-3000m 2 , The particle size is 0.1~2mm, and the free packing density is 100~400Kg / m 3 .
[0031] After the adsorption filler is filled, a filter device 2 made of a screen with a pore size less than or equal to 15 μm is installed at the entrance of the bottle body, and then the valve 3 is screwed in, and the steel cylinder is manufactured.
[0032] Inject the odorant into the cylinder through the v...
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The invention relates to a method for manufacturing a steel cylinder for medium and low pressure adsorption type natural gas, which is characterized in that it comprises the following steps: ① welding the shell of the steel cylinder according to the national standard GB 5100; Fill the shell with a porous carbonaceous adsorbent; ③ Install a filtering device at the entrance of the shell to prevent the adsorbent from being taken out of the shell by natural gas during the filling and deflation process, and then screw it into the valve; ④ Press The national standard GB / T19206-2003 adds odorant. The present invention also relates to the filling method and deflation method of the steel cylinder. Compared with the prior art, compared with conventional natural gas storage steel cylinders, the low-pressure adsorption natural gas cylinder provided by the present invention has the advantages of high safety performance, good moving reliability, strong gas storage capacity, good filling repeatability, and high filling efficiency. The advantages of simple process and low production cost have filled the gap in the current medium and low pressure mobile natural gas storage technology.
Description
technical field [0001] The invention relates to a steel cylinder for medium and low pressure adsorption storage of natural gas, a method for filling the steel cylinder with natural gas, and a method for using the natural gas in the steel cylinder. Background technique [0002] As a clean energy source, natural gas produces no waste residue or waste water after combustion, and has the advantages of safe use, high calorific value, and cleanliness. Natural gas has a wide range of sources and has been widely used in power generation, chemical raw materials, civil and commercial gas, and vehicle energy. However, due to its supercritical properties at standard temperature and pressure, natural gas has a very low density at this time, which makes natural gas have a very low volumetric energy density compared to conventional liquid fuels. Therefore, it is necessary to take certain technical measures to achieve the purpose of using natural gas in large quantities. The national "Ten...
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IPC IPC(8): F17C7/00F17C5/06F17C1/14F17C11/00
Inventor 王竞雄刘赞姚虹煌吴永生陈虎何家安
Owner NINGBO MEIKE ACETYLENE CYLINDERS