Shuttle type vibration damping break valve

Abstract

The invention provides a shuttle-typed damping check valve, which solves the problem that the existing check valve has insensitive start and closeness, much noise and high energy consumption. The vertical communication section (34) of the inlet passage (28) and the outlet passage (29) of a valve body (1) are provided with valve seats (30); a guide sleeve (31) which is arranged above the valve seat is connected with the valve body (1) or a valve seat (4); the column surface of the guide sleeve is provided with a through hole (33) and the guide sleeve is movably matched with a valve flap; the valve flap (2) is hermetically matched with a valve seat (30); a valve rod (17) is connected with the valve cover (4) through a thread; the lower end surface of the valve rod (17) is an arc surface which is contacted with the bottom plane point of the internal chamber of the valve flap (2); the valve rod (17) is connected with a retaining ring (3); the lower surface of the retaining rind (3) is contacted with the step surface of the internal chamber of the valve flap (2); the upper surface of the retaining ring (3) is contacted with the lower end surface of a liner (23); the internal wall of the liner (23) is connected with the thread of the external wall of the valve rod (17); a flexible pad or a damping element (24) is arranged between the upper surfaces of the flange of the liner (23) and the valve flap (2).

Description

Technical field: [0001] The present invention relates to globe valves. Background technique: [0002] The valve stem of the existing globe valve is rigidly connected with the valve disc, and the opening, closing, and vibration during operation of the valve are directly transmitted to the valve stem through the valve disc, and then transferred to the valve body, valve seat and the entire pipeline system, resulting in the failure of the pipeline system. Noise, inflexible opening and closing, high energy consumption. The existing shut-off valve has poor sealing reliability and is prone to leakage. Invention content: [0003] The object of the present invention is to provide a shut-off and conduction reliable, reliable sealing, vibration-reducing shuttle type vibration-damping cut-off valve. [0004] The present invention is achieved like this: [0005] The shut-off valve of the present invention has a valve seat 30 on the vertical communication section 34 between the inlet...

AI Technical Summary

Problems solved by technology

[0002] The valve stem of the existing globe valve is rigidly connected with the valve disc, and the opening, closing, and vibration during operation of the valve are directly transmitted to the valve stem through the valve disc, and then transferred to the valve body, valve seat and the entire pipeline system, resulting in the failure of the pipeline system. Noise, inflexible opening and closing, high energy consumption

The existing stop valve has poor sealing reliability and is prone to leakage

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