Integral forged high-temperature high-pressure abnormal protective seal ball valve device and mounting method thereof
An abnormal protection, high temperature and high pressure technology, applied in the direction of valve device, valve operation/release device, shaft seal, etc., can solve the problems of increased assembly time, unevenness, valve leakage, etc., to improve work efficiency and system maintenance safety , Sealing and reliable effect
Active Publication Date: 2013-02-06
北京蓝爱迪电力技术有限公司
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Problems solved by technology
[0004] Defect 1. The installation of the valve stem requires the use of detachable bushings and glands. This detachable structural design is the cause of damage to the valve parts and increases the assembly time;
[0005] Defect 2. The extended valve stem extends beyond the platform on the bonnet, which is prone to axial movement of the valve stem and destroys the existing sealing state of the ball valve, accelerating leakage in high temperature and high pressure conditions;
[0006] Defect 3. The removable gland exerts an uneven force on the sealing packing, which is an inducement for valve leakage
Method used
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] Such as figure 1 , figure 2 As shown, the present invention includes: the valve body 1 is a horizontal structure formed by forging; the downstream valve seat 2 is arranged in the transverse diameter of the valve body 1, and is in a sealed state with the valve body 1; the ball 3, the upstream valve seat 4, the butterfly The spring 5 and the butterfly spring guide sleeve 6 are sequentially arranged in the flow channel of the valve body 1 . Among them, the opening and closing parts are composed of the downstream valve seat 2, the ball 3, the upstream valve seat 4, the butterfly spring 5 and the butterfly spring guide sleeve 6.
[0021] Such as image 3 , Figure 4 As shown, a platform 28 is provided on the bracket 27 integrally forged with the valve body 1; a valve stem 7 is arranged on the bracket 27 in turn; a valve stem guide sleeve 8 is set...
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The invention relates to an integral forged high-temperature high-pressure abnormal protective seal ball valve device and a mounting method thereof. The device comprises a valve body, a support, a starting and stopping piece and an upper-mounting-type valve rod structure, wherein the valve body and the support are integrated; the starting and stopping piece controls the passing of a fluid; the valve body is of a cross arrangement structure formed by forging; a downstream valve seat is arranged in a transverse through path of the valve body, and forms a seal state with the valve body; a ball, an upstream valve seat, a butterfly spring and a butterfly spring guide sleeve are sequentially sleeved in a passageway of the valve body; the support which is integrated with the valve body is provided with a platform; the support is sequentially provided with valve rods; each valve rod is externally provided with a valve rod guide sleeve; the upper part of the valve rod guide sleeve is provided with a filler set, a filler pressing sleeve, a filler pressure plate, a locking bolt, a butterfly-type spring gasket and a locking nut; a torque rotary shaft is arranged at the top part of each valve rod, and is connected with each valve rod; and the upper part of the torque rotary shaft is provided with a valve rod thrust sleeve. According to the invention, leakage is eliminated, the ball valve is enabled to have a self-seal property, the seal property of the ball valve is ensured to be more reliable, the working efficiency of a system is improved, and the system maintaining is much safe.
Description
technical field [0001] The invention relates to a ball valve device, in particular to an integrally forged high temperature and high pressure abnormal protection hard-sealed ball valve device, which is used for thermal power units and reprocessing under severe working conditions such as high temperature, high pressure, high cycle, thermal shock and scouring. Circulation combined power plant system, as well as pipelines of various systems such as petroleum refining, chemical industry, and metallurgy. Background technique [0002] Sealed ball valves are commonly used in pipelines in thermal power units and recirculation combined power plant systems, petroleum refining, chemical, metallurgical and other systems under severe working conditions such as high temperature, high pressure, high cycle, thermal shock and scouring. The connection, opening and closing of the sealing device. Because it works under severe working conditions such as high temperature, high pressure, high cyc...
Claims
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IPC IPC(8): F16K5/06F16K27/06F16K31/60F16K41/02F16K35/00
Inventor 武海王骥
Owner 北京蓝爱迪电力技术有限公司