Operating mechanism for superhigh-temperature and-pressure fast three-way change valve
A technology of three-way reversing valve and operating mechanism, which is applied in the direction of valve operation/release device, valve details, valve device, etc., which can solve the problem of easy damage of the sealing surface, and achieve anti-collision, strong sealing reliability, and structure compact effect
Active Publication Date: 2007-10-17
杨荣水
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Problems solved by technology
[0003] In order to overcome the problem that the ordinary valve operating mechanism in the prior art is not suitable for high temperature and high pressure fast three-way reversing valve and the sealing surface is easily damaged, the present invention provides an operating mechanism for an ultra-high temperature and high pressure fast three-way reversing valve. The operating mechanism of the high-temperature and high-pressure rapid three-way reversing valve has a compact structure, a small impact force on the sealing surface, strong sealing reliability and long service life.
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[0010] As shown in the figure, the present invention comprises valve stem 1, cylinder body 2, upper cylinder block 3, lower cylinder block 4 and cylinder piston 5, valve stem 1 links to each other with cylinder piston 5, on upper and lower cylinder block 3,4 all A damping energy storage spring matched with the cylinder piston 5 is provided, and the vibration damping energy storage spring is divided into a long damping energy storage spring 6A and a short vibration damping energy storage spring 6B and mixed and matched. The upper and lower cylinder blocks 3 and 4 are also provided with interconnected damping oil cylinders 7. The oil cylinder piston 8 in the damping oil cylinder 7 is interlocked with the piston rod 9 protruding from the cylinder body 2, and the piston rod 9 cooperates with the cylinder piston 5. A regulating valve 10 is connected between the damping oil cylinders 7 communicating with each other.
[0011] The invention describes the control mechanism of the ultra...
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The operation mechanism of super high temperature high pressure fast three-way change valve includes valve rod, cylinder body, upper cylinder seat, lower cylinder seat and cylinder piston. The valve rod is connected to the cylinder piston, both the upper and the lower cylinder seat have damping energy accumulating spring matched with the cylinder piston and damping oil cylinders communicating each other, and the oil cylinder pistons in the damping oil cylinders are connected to the cylinder piston rod matching the cylinder piston. In the said design, when the valve core moves to approach the valve seat, the spring and the damping oil cylinder will decelerate the valve core to avoid impact. The present invention has the advantages of compact structure, less impact force, reliable seating and long service life.
Description
Technical field [0001] The invention relates to an operating mechanism of an ultra-high temperature and high pressure fast three-way reversing valve. Background technique [0002] Ordinary cut-off valves have one inlet and one outlet. The operating mechanism drives the valve core to move and controls the opening and closing of the valve. The operating mechanism is mainly composed of brackets, piston rods, cylinder seats, pistons, cylinder blocks, springs, cylinder heads and solenoid valves. It is composed of a single-cylinder single-acting cylinder. Its action principle is: when the valve needs to be opened, the solenoid valve opens, and the compressed air pushes the piston upward from the lower part of the cylinder, overcoming the force of the medium on the valve core and the spring force, driving the valve stem, and the valve core moves upward to open the valve. When the valve needs to be closed, the solenoid valve closes the air source, and the spring pushes the piston d...
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IPC IPC(8): F16K31/122
Inventor 杨荣水李保升吴光斌王靖旺庞旭东
Owner 杨荣水