Special hard-seal lock hopper plate valve for coal chemical industry
A seal lock, coal chemical technology, applied in shaft seals, sliding valves, valve details, etc., to achieve the effects of improving stability, improving holding force and sealing performance, and reducing maintenance costs
Pending Publication Date: 2018-11-23
SHAANXI RUILAI AUTOMATIC CONTROL EQUIP CO LTD
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- Application Information
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And need to go offline frequently for maintenance
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[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] like figure 1 figure 2 Shown: including the upper valve body 1, the upper valve body 1 is provided with a manhole 101, the internal circulation channel has an anti-corrosion wear-resistant liner 2, the left side of the wear-resistant liner is the valve seat 3, the valve seat 3 and the upper valve body 1 A valve seat sealing groove 105 is arranged between them, and a valve seat sealing gasket 4 is installed in the sealing groove 105, which is fixed by a pressure ring 5 and the valve seat bolt 6 is pressed. The valve seat 3 is closely attached to the valve disc 7, and the valve disc 7 and the sleeve 8 are positioned through the outer circle, and are carried by the disc spring group 9 and the disc spring seat 10. The sleeve 8 cooperates with the connecting plate 11 and is welded as a whole. The upper end of the connecting plate 11 is connected with th...
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A special hard-seal lock hopper plate valve for the coal chemical industry comprises an upper valve body. An inner circulation passage of the upper valve body is provided with an anticorrosion wear-resistant liner pipe, a valve seat is arranged on the left side of the wear-resistant liner pipe and closely fits a valve disc, the valve disc and a sleeve are positioned through an excircle and supported through a disc spring group and a disc spring seat, and the sleeve is matched with a connection plate. A valve rod is arranged on the connection plate, the left side of the valve rod and a lower valve body are positioned through a bearing, the end of the valve rod fits a lubricating graphite group, the left end of the bearing is provided with a wear-proof pad while the right side fits a supporting sleeve through lubricating graphite, the supporting sleeve is mounted on the upper valve body, and a valve rod packing group is mounted on the right side. A rocker is arranged on the right side ofthe valve rod, opening-closing actions are carried out through an execution mechanism, and a middle valve body and the lower valve body are arranged sequentially on the upper valve body. The specialvalve designed for a lock hopper station in the coal chemical industry is excellent in wear resistance and erosion resistance and strict in turn-off performance, the service life of the valve can be prolonged substantially, and repair and maintenance cost is reduced.
Description
technical field [0001] The invention relates to the technical field of shut-off valves in the coal chemical industry, in particular to a special hard-seal lock bucket disc valve for the coal chemical industry. Background technique [0002] In recent years, due to the impact of the international situation, oil prices have continued to rise. Under this environment, due to the emergence of new alternative energy sources, the domestic coal chemical industry has developed rapidly. In the coal chemical plant, a large number of lock bucket technology is used for the processing and transportation of powder and slurry. The operating pressure of the valve at this station is high, and it is prone to internal parts erosion, sealing surface wear, internal leakage, etc., and the lock bucket valve Life and reliability have gradually become the bottleneck of long-term reliable operation of pulverized coal pressurization equipment in coal chemical industry. [0003] As one of the most impor...
Claims
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IPC IPC(8): F16K3/06F16K3/314F16K3/30F16K27/04F16K31/44F16K41/02
CPCF16K3/06F16K3/30F16K3/314F16K27/044F16K31/44F16K41/023
Inventor 曹辉曹磊
Owner SHAANXI RUILAI AUTOMATIC CONTROL EQUIP CO LTD