Sealing ball valve
A technology for sealing ball valves and valve seats, which is applied to valve devices, cocks including cut-off devices, engine components, etc., which can solve the problems of troublesome replacement and easy gaps, and achieve the effect of easy disassembly and good sealing
Inactive Publication Date: 2017-09-26
GLOBAL SET VALVE COMPONENTS JIANGSU
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Problems solved by technology
[0004] These requirements not only put forward high requirements on the valve and related structures, but also on the technical level of the valve seat manufacturing process. Although the current ball valve has made great progress in sealing, there are more sealing rings between the valve seat and the valve body. Soft seal is performed, and the sealing ring is adjusted through the plug-in between the valve seat and the valve ball. However, at present, the plug-in can only provide a layer of protection, and there are easy gaps between them. Once damaged, it is quite troublesome to replace. Guarantees the tightness of the position in contact with the spherical surface for a short time
Method used
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Embodiment Construction
[0021] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.
[0022] Please also refer to figure 1 and figure 2 , figure 1 It is a sectional view of the sealing ball valve of the embodiment of the present application; figure 2 It is a sectional view of the valve seat 20 of the embodiment of the present application. As shown in the figure, a sealed ball valve includes a valve ball 10, the valve ball 10 includes a ball portion 11 with a flow passage L and a valve stem portion 12 located on the flow passage L; , the valve seat 20 includes a tapered hole portion 21 that stops around the flow channel L and a through hole portion 22 that communicates with the flow channel L; a valve cover 30 that is sleeved on the valve...
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The application discloses a sealed ball valve, which includes a valve ball, the valve ball includes a ball portion with a flow passage and a valve stem portion located on the flow passage; The taper hole around the flow channel and the through hole connected to the flow channel; the valve cover set on the valve seat; the flange part set around the valve cover; the shell connecting the valve seats on both sides and the built-in valve ball, the shell The valve stem part is exposed; the annular groove arranged in the tapered hole part; and the sealing ring fitted in the annular groove, the sealing ring stops against the valve ball; wherein, the flange parts on both sides are connected to the valve seats by bolts. In the present invention, the valve seats on both sides are fixedly connected through flanges to stabilize the housing and facilitate disassembly; meanwhile, the housing adopts a sealing ring to fit into an annular groove, and the sealing performance is good.
Description
technical field [0001] The application belongs to the technical field of valves, and in particular relates to a sealed ball valve. Background technique [0002] Ball valve is a valve with full bore and low flow resistance, which is very suitable as a valve for long-distance pipelines. It is a new type of valve with the fastest development in the past 50 years. The demand for pipeline ball valves in global energy, chemical and other industries has been growing steadily, especially in China, the world's second largest economy, with its rapid development in oil, natural gas and chemical industry, urban construction and other industries, pipeline ball valves are used as engineering One of the key equipment, usher in unlimited development and market opportunities. [0003] Petroleum, natural gas, chemical industry and energy account for more than 70% of valve demand. Taking the continuous development and changing demand of oil and natural gas as an example, its demand mainly f...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16K5/06F16K5/08
CPCF16K5/0689F16K5/08
Inventor 魏瑞福
Owner GLOBAL SET VALVE COMPONENTS JIANGSU