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A technology of breaking valve and large flow, applied in the direction of safety valve, balance valve, valve device, etc., to achieve the effect of stable and reliable breaking force, low maintenance cost and preventing fluid impact
Active Publication Date: 2013-11-27
CHENGDU ANDERSON MEASUREMENT
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Moreover, the exposed balance chamber 27 on the air intake plug can reliably solve the problem of unbalance of the valve body caused by freezing at low temperature. The positioning structure composed of a plane check valve, stainless steel ball and air intake plug can effectively prevent fluid Impact, so that the valve body balance and stability
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[0035] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0036]In order to overcome the deficiencies of the prior art, the present invention provides a large-flow tubular breakaway valve, which is provided with an air intake plug 1, a positioning sleeve 2, a breakaway shaft 4 and a plane check valve 3 to form a completely sealed cavity. Inside, there are fluid channel process holes I20, fluid channel process holes II21, fluid channel process holes III22, and fluid channel process holes IV23 for fluid passage. An exposed balance cavity is provided in the middle of the intake plug 1 to solve the problem of unbalance of the valve body itself caused by icing at low temperature. The positioning structure composed of plane check valve, stainless steel ball and intake plug can effectively prevent fluid impact and make the valve body balanced and stable. There are four symmetrical fluid passages I20 in the body of the intake plug...
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Abstract
The invention discloses a large flow pipe-type breaking valve which is characterized by comprising an air inlet valve, a locating sleeve, a plane one-way valve, a breaking shaft, a shield, a lantern ring, a one-way valve core, a stainless steel spring I, a spring seat, a stainless steel spring II, a stainless steel ball I, a supporting ring I, an O-type seal ring I, a one-way valve seal ring, an O-type sea ring II, a main valve seal ring, an O-type seal ring III, a compression spring, a stainless steel ball II, fluid channel technology holes I-IV, a spring hole, a symmetrical hole, a locating hole and a balance cavity. The pressure balance principle is used by the breaking valve, that is, the breaking valve can be automatically and securely separated when the two ends of the breaking valve are applied to the tension for not less than 600N (the breaking force is adjustable) under the circumstance that the pressure fluid or the fluid passes through a hose, and the two ends of the breaking valve can be automatically, effectively and reliably sealed, and no fluid leaks, thereby being capable of playing the role of breaking and protecting on the high pressure hose for below 25MPa, at the same time, the breaking valve is stable and reliable in breaking force, large in flow, low in maintenance cost, convenient to maintain and reusable.
Description
technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a large flow pipe type breakaway valve. Background technique [0002] The application and promotion of breakaway valves have involved many related industries, and there are many kinds of breakaway valve products used in various industries. From a functional point of view, the ultimate goal of the breakaway valve is to avoid and prevent the occurrence of safety accidents or minimize the probability of high-risk accidents. And stability requirements are high; technically speaking, the technical performance and general performance of the entire breakaway valve industry are not very mature, mainly reflected in the changeable application occasions of breakaway valves, and most of them are designed for a single requirement And production, and the same kind of breakaway valve has low applicability in a variety of environments or media, mainly for the generality of the workin...
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