Venturi structure anti-residue high-temperature molten salt butterfly valve
A high-temperature molten salt and Venturi technology, applied in the direction of valve lift, valve details, valve devices, etc., can solve the problems of inconvenient operation, valve blockage, easy leakage, etc., and achieve the advantages of convenient operation, good sealing and long service life Effect
Inactive Publication Date: 2019-03-05
HUBEI TAIHE PETROCHEM EQUIP
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a Venturi structure anti-residue high-temperature molten salt butterfly valve, which solves the problem that the high melting point in the molten salt pipeline is easy to crystallize in the valve, causing valve blockage, inconvenient operation, and easy leakage.
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[0020] like figure 1 , figure 2 As shown, a Venturi structure anti-residual high-temperature molten salt butterfly valve includes a valve body 1, a valve stem 4, a butterfly plate 6, a cooling frame 12, a bracket 16, and an actuator 18. The valve stem 4 passes through the valve body 1 and the butterfly plate 6, and a shaft sleeve 2 is designed between the valve stem 4 and the valve body 1. The shaft sleeve 2 is hardened by chrome-nickel stainless steel material, which can continue to work at high temperature and has good performance. Excellent high temperature resistance, due to the high content of nickel and chromium, it has good oxidation resistance, corrosion resistance and high temperature resistance.
[0021] The butterfly plate 6 and the valve stem 4 are fixed by cylindrical pins 5 . The upper end of the valve rod 4 passes through the heat sink 12 and is fixed by the first fastening device 11 , and a stainless steel winding flexible graphite gasket 10 is arranged in t...
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The invention discloses a venturi structure anti-residue high-temperature molten salt butterfly valve. The venturi structure anti-residue high-temperature molten salt butterfly valve comprises a valvebody, wherein the valve body adopts a venturi structure; the angle alpha of the conical contraction section of a medium inlet of the valve body ranges from 20 degrees to 25 degrees, the throat portion conforms to the self structure of the butterfly valve, and the angle beta of the conical diffusion section of a medium outlet ranges from 8 degrees to 15 degrees; and the butterfly valve further comprises a valve rod and a butterfly plate, wherein the valve rod penetrates through the valve body and the butterfly plate, a shaft sleeve is arranged between the valve rod and the valve body, and thebutterfly plate and the valve rod are fixed through a cylindrical pin. According to the venturi structure anti-residue high-temperature molten salt butterfly valve, the problem that due to the fact that high-melting-point molten salt in the molten salt pipeline is easy to crystallize in the valve, the valve is blocked, the operation is inconvenient and the leakage is prone to occur are solved.
Description
technical field [0001] The invention relates to a molten salt valve, in particular to a Venturi structure anti-residue high temperature molten salt butterfly valve. Background technique [0002] Molten salt is a mixture of potassium nitrate (KNO3), sodium nitrite (NaNO2) and sodium nitrate (NaNO3). The molten salt energy storage technology is to use the daylight to heat the heat storage medium molten salt, store it, release it at night, and generate steam through heat exchange to drive the steam turbine to generate electricity. Compared with the storage defect of photovoltaic power generation that directly converts light into electrical energy, the energy storage technology of solar thermal power generation can avoid the trouble of not being able to generate power at night or in rainy days, and can realize continuous power generation and peak-shaving power generation. [0003] The heat carrier furnace heats the powdered molten salt to a melting point above 142°C, making it ...
Claims
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IPC IPC(8): F16K1/226F16K1/36F16K1/32F16K41/02F16K49/00
CPCF16K1/2261F16K1/32F16K1/36F16K41/02F16K49/00
Inventor 李华祖章文忠
Owner HUBEI TAIHE PETROCHEM EQUIP