4results about How to "Reduce design pressure" patented technology

The application discloses a wide-angle frequency scanning antenna based on a dual-band coupling filter, comprising a power divider module, a dual-band filter module and an antenna radiation unit. The power divider module is used for power distribution of an input signal; the dual-band filter module is used for phase modulation of the output signal of the power divider; and the antenna radiation unit is used for signal radiation of the dual-band. The application adopts the dual-band filter to modulate the signal phase, realizes two groups of different phase distributions changing with frequency in the specified two frequency bands respectively, and covers different angle ranges in the positive and negative directions respectively, so that the wide-angle scanning from-60° to 60° is realized finally. The dual-band design reduces the design pressure of the single-band scheme. With the flexible bandwidth design function of the filter, the frequency scanning antenna can be customized according to the actual demand. The wide-angle frequency scanning antenna realized by the application has the advantages of large scanning range, small scanning gain fluctuation and customizable frequency band range.

This invention discloses a high-pressure hot water thermal energy storage phase change constant-pressure system and method for compressed air energy storage power stations, belonging to the field of compressed air energy storage. It includes an atmospheric pressure cold water storage tank, at least one high-pressure hot water storage tank, an energy storage heat exchanger, an energy release heat exchanger, a cold water circulation pump, and a constant-pressure system. A steam space is reserved at the top of the high-pressure hot water storage tank. The constant-pressure system includes a condenser and a high-pressure hot water buffer tank. The constant-pressure system maintains the pressure stability inside the high-pressure hot water storage tank by condensing steam and buffering pressure fluctuations. During energy release, the hot water is driven by the steam pressure inside the high-pressure hot water storage tank, eliminating the need for a hot water circulation pump. This invention, through cold and hot water separation, steam phase change constant-pressure design, and a pump-free design, significantly reduces the number and pressure levels of high-pressure hot water storage tanks, lowers equipment investment, and simultaneously improves thermal storage temperature and system efficiency, providing an efficient and economical solution for the large-scale application of compressed air energy storage power stations.

The application discloses a compressed air energy storage power station vertical shaft and spherical tank combined heat storage constant pressure system and method, and belongs to the technical field of compressed air energy storage, wherein the system comprises a heat storage and heat exchange unit, a vertical shaft cold storage unit, a nitrogen temperature control and constant pressure unit and a nitrogen supplement unit; the method is realized based on the system and comprises energy storage, energy release, constant pressure stabilization and nitrogen supplement steps. The application stores low-temperature water in an artificial underground chamber vertical shaft, replaces traditional cold water spherical tanks, reduces the number of spherical tanks, reduces the design pressure of the spherical tanks through nitrogen temperature control and regulation, breaks through the heat storage temperature improvement bottleneck, can significantly improve the efficiency of the energy storage power station, reduces the initial investment and operation cost of the system, reduces pressure fluctuation and prolongs the service life of equipment.

The application provides a method for forming a calendered glass with a thickness of less than 2mm, and belongs to the technical field of calendering of glass. The method comprises the following steps: flowing a glass melt with a viscosity of less than 10 4 Pa·s into a closed container containing a metal liquid; when the viscosity of the glass melt increases to 10 5.3 -10 5.8 Pa·s, the glass melt is formed into a viscoelastic glass ribbon with a certain width and a thickness of H1 by horizontal drawing, and H1<4mm; when the viscosity of the viscoelastic glass ribbon increases to 10 5.8 -10 6.3 Pa·s, the viscoelastic glass ribbon is introduced between an upper calendering roller and a lower calendering roller through a guide roller; after being drawn and extruded by the upper calendering roller and the lower calendering roller, the viscosity of the viscoelastic glass ribbon is greater than 10 6.8 Pa·s, the thickness is H2, H1>H2, and H2≤2mm; and the viscoelastic glass ribbon is annealed and cooled to obtain a product. The method is used for producing calendered glass with a thickness of less than 2mm.