Hydraulic control three-way ball valve
A three-way ball valve, hydraulic control technology, applied in multi-way valves, valve details, valve devices and other directions, can solve the problems of uncontrollable control accuracy, high labor intensity, limited application scope, etc., to improve the reversing efficiency and applicability , reduce labor intensity, facilitate the effect of popularization and application
Active Publication Date: 2015-10-14
CHENGDU HANGTIAN PHOTOELECTRIC TECH
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Problems solved by technology
[0004] The reversing method of the ordinary three-way ball valve is the handle pulling type. On the one hand, when the flow rate and pressure increase, the handle pulling torque increases significantly, and the labor intensity is high. At the same time, the control accuracy cannot be controlled; on the other hand, it cannot adapt The automatic control hydraulic system seriously affects the reversing efficiency of the liquid flow; and the position of the valve handle rotation must be reserved during installation, which limits its application range
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] Such as figure 1 , 2 As shown, the hydraulically controlled three-way ball valve in this embodiment includes a valve body 1 with three working ports A, B, and C, a ball seat 2 installed in the valve body 1, a ball 3 installed on the ball seat 2 and With the sphere shaft 4 fixedly connected to the sphere 3, the cross section of the sphere shaft 4 is a regular polygon, and the hydraulically controlled three-way ball valve also includes a hydraulic control block 5, such as Figure 4 As shown, the hydraulic control block 5 includes a gear 51, a rack 52, a threaded push rod 53, a push rod 55 an...
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The invention discloses a hydraulic control three-way ball valve which comprises a valve body, a ball seat arranged in the valve body, a ball body arranged on the ball seat and a ball body rotary shaft fixedly connected to the ball body. The cross section of the ball body rotary shaft is an equilateral polygon, the hydraulic control three-way ball valve further comprises a hydraulic control block, the hydraulic control block comprises a gear, a gear rack, a threaded ejector rod, an ejector rod and a movable sleeve, and the gear is matched with the ball body rotary shaft through an equilateral polygon hole in the center of the gear. The gear is matched with the gear rack, and the gear, the threaded ejector rod and the ejector rod are connected in sequence end to end. The movable sleeve is arranged on the outer portion of the threaded ejector rod in a sleeved mode, an annular sealed cavity is formed by the movable sleeve and the threaded ejector rod, and a second control opening is communicated with the annular sealed cavity. A sealed cavity is formed in the left end of the ejector rod, a first control opening is communicated with the sealed cavity, and the area of the cross section of the left end of the ejector rod is larger than the area of the cross section of annular sealed cavity. According to the hydraulic control three-way ball valve, the reversing efficiency of the three-way ball valve is improved, and labor intensity is lowered.
Description
technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a hydraulically controlled three-way ball valve. Background technique [0002] Ball valves and gate valves belong to the same type of valves. The difference is that the closing part of the ball valve is a sphere, and the connected pipe is opened and closed by rotating the sphere around the center line of the valve body. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of media. Three-way ball valve is a new type of ball valve, which is divided into T type and L type. Connecting two pipelines that are orthogonal to each other cannot maintain the interconnection of the third pipeline at the same time, and only plays a distribution role. [0003] The three-way ball valve has been widely used, and it has the following advantages: the fluid resistance is small, and its resistance coefficient is equal to that of the pipe section...
Claims
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IPC IPC(8): F16K11/087F16K31/12
CPCF16K11/087F16K31/12F16K31/54
Inventor 杨文曾晖梁智渊李晓琦何毅陈文静
Owner CHENGDU HANGTIAN PHOTOELECTRIC TECH