Automatic pipeline leakage protection device
An automatic protection and pipeline leakage technology, which is applied in the direction of valve devices, pipe components, engine components, etc., can solve the problems of slow response, complex structure, poor safety and stability, etc., and achieve high safety and stability, rapid response and simple structure Effect
Inactive Publication Date: 2015-03-25
李国栋
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Problems solved by technology
[0002] Although the existing automatic protection devices for fluid pipeline leakage have various structures, they all use multiple valves and complex rotating mechanisms to realize pipeline flow overload protection, and all have defects such as complex structure, poor safety and stability, and slow response.
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[0011] See attached figure 1 It is a cross-sectional view of the structure of the one-way shut-off embodiment of the present invention. The automatic protection device for pipeline leakage is composed of a valve seat 1, a valve body 2, a ball push rod 3, a pressure spring 4, a gland 5, a return push rod 6 and a connecting pipe 7. , the valve body 2 is a stepped shaft with different diameters, which is set in the round hole of the valve seat 1 and the position of the largest diameter is slidingly fitted with the round hole of the valve seat 1. Two holes are evenly arranged in the radial direction of the circumference of the valve seat 1, and each hole A ball push rod 3, a pressure spring 4, and a gland 5 are arranged inside, a groove is arranged radially at the position of the largest diameter of the valve body 2 and 6 through holes are arranged axially, the ball head of the ball push rod 3 and the groove Contact, the depth of the groove is less than the radius of the ball head...
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An automatic pipeline leakage protection device is a protection device for automatically closing a pipeline rapidly when the flow of fluid in a pipeline is overloaded. The automatic pipeline leakage protection device mainly comprises a valve seat, a valve body, ball head push rods, pressure springs, glands, a returning ejector rod and a connecting tube, wherein when the flow of the pipeline is overloaded, the pressure difference between the two ends of the valve body surpasses the resistance of the ball head push rods acting on the valve body, the valve body moves towards the outlet direction of the valve seat, the ball head push rods move outwards along axes of the ball head push rods, included angles between the directions of acting forces of the ball head push rods on the valve body and the direction opposite to the moving direction of the valve body are increased, the resistance of the ball head push rods to the movement of the valve body is reduced, and the sealing conical surface of the valve body is rapidly adhered to the sealing conical surface of the connecting tube, so that rapid automatic closing of the protection device is achieved. The automatic pipeline leakage protection device is simple in structure, high in safety and reliability and quick in response.
Description
technical field [0001] The invention relates to an automatic protection device for fluid pipeline leakage, which is especially suitable for pipeline fluid leakage, such as a protection device that can quickly and automatically close when a pipeline bursts and leaks. Background technique [0002] Although the existing automatic fluid pipeline leakage protection devices have various structures, they all use multiple valves and complex rotating mechanisms to realize pipeline flow overload protection, and all have defects such as complex structure, poor safety and stability, and slow response. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automatic protection device for pipeline leakage in view of the deficiencies in the prior art. [0004] The technical solution adopted in the present invention is: an automatic protection device for pipeline leakage is mainly composed of a valve seat, a valve body, a ball push ...
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IPC IPC(8): F16K17/02F16L55/07
CPCF16K17/02
Inventor 李国栋
Owner 李国栋