Supercritical high-performance integral-forging soft and hard double-seal closed valve
An integral forging, high-performance technology, applied in the direction of sliding valves, valve details, valve devices, etc., can solve the problems of not being able to meet the needs of high-pressure working conditions, and achieve the effect of simple structure, meeting the needs of use, and reasonable design
Inactive Publication Date: 2020-04-17
NANTONG GUODIAN VALVE TECH CO LTD
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Problems solved by technology
[0003] The pressure of the transmission sealing valve is generally below 900Lb, which cannot meet the needs of high pressure working conditions
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Embodiment Construction
[0018] Such as Figure 1-3 As shown, a supercritical high-performance integrally forged soft and hard double-seal closed valve includes a valve body 1, a valve cavity 2 is arranged in the valve body 1, a valve inlet 3 is arranged at the left end of the valve body 1, and a valve inlet 3 is arranged at the right end of the valve body 1. The valve outlet 4, the valve inlet 3, and the valve outlet 4 communicate with the valve cavity 2 respectively; the left gate 5 and the right gate 6 are vertically arranged in the valve cavity 2 respectively, and between the left gate 5 and the right gate 5 A valve stem 7 is arranged between them, and the two ends of the valve stem 7 are fixedly connected with the left gate 5 and the right gate 6 respectively, and respectively support the left gate 5 in sealing contact with the valve body 1 and cover the valve inlet 3, and the right gate 6 is in contact with the valve body 1 respectively. The valve body 1 is in sealing contact with and covers the...
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The invention discloses a supercritical high-performance integral-forging soft and hard double-seal closed valve. The supercritical high-performance integral-forging soft and hard double-seal closed valve comprises a valve body, a valve cavity is formed in the valve body, a valve inlet is formed in the left end of the valve body, and a valve outlet is formed in the right end of the valve body; anda left flashboard and a right flashboard are vertically arranged in the valve cavity, a valve rod is arranged between the left flashboard and the right flashboard, the two ends of the valve rod are fixedly and correspondingly connected with the left flashboard and the right flashboard and correspondingly support the left flashboard to be in sealed contact with the valve body to cover the valve inlet and the right flashboard to be in sealed contact with the valve body to cover the valve outlet, a plurality of holes are evenly distributed in the left flashboard, a channel for allowing the leftflashboard and the right flashboard to access the valve cavity is arranged at the top of the valve body, a valve cover is arranged in the channel, a four piece ring, a backing ring and a hard self-sealing ring are sequentially arranged between the valve cover and the valve body from top to bottom, a cover plate is further arranged on the valve cover and fixedly connected with the valve cover and presses the four piece ring. According to the supercritical high-performance integral-forging soft and hard double-seal closed valve, the valve can bear the pressure increasing from 900 Lb to 2500 Lb,and the use demands of high-pressure conditions are met.
Description
technical field [0001] The invention relates to a valve, in particular to a supercritical high-performance integrally forged soft-hard double-seal closed valve. Background technique [0002] Before the ignition of supercritical and power plant boiler systems or after system overhaul, hydraulic pressure tests must be carried out on boiler superheaters and reheaters. As an important isolation device for hydraulic pressure tests, the application of closing valves will bring great benefits to this process. Come conveniently. Because it saves the work of welding the blind plate before the pressure test, cutting the blind plate and welding the pipe after the pressure test, not only the construction period is shortened, but also it can be reused. [0003] The transmission sealing valve pressure is generally below 900Lb, which cannot meet the needs of high pressure working conditions. Contents of the invention [0004] The invention proposes a supercritical high-performance inte...
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IPC IPC(8): F16K3/02F16K3/30F16K27/04
CPCF16K3/0227F16K3/0281F16K3/30F16K27/044
Inventor 尤辉宏韩健莉阮淋波周国林倪剑张益龙
Owner NANTONG GUODIAN VALVE TECH CO LTD