BACK PRESSURE BLOCKING SLIDING VALVE
First Claim
1. A back pressure blocking sliding valve, comprising:
- a valve body including;
a fluid inlet part and a fluid outlet part provided in upper and lower parts of the valve body, respectively, with a fluid passing cavity defined between the fluid inlet part and the fluid outlet part;
a mover including a blocking plate seated thereon, the blocking plate functioning to block the fluid inlet part, the mover being shifted to the fluid passing cavity when it is required to block a fluid flow; and
a mover shifting unit shifting the mover,wherein when a back pressure is generated, the mover shifting unit shifts the mover to a blocking position at which the blocking plate blocks the fluid inlet part, and the blocking plate seated on the mover floats due to a pressure difference produced by the back pressure inside the valve body, and closes the fluid inlet part, thereby blocking the back pressure.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a back pressure blocking sliding valve including: a valve body having a fluid inlet part, a fluid outlet part, and a fluid passing cavity; a mover with an upper part having a blocking plate for blocking the flow of the fluid under a back pressure, the mover being horizontally moved into the fluid passing cavity when blocking the back pressure; and a mover shifting unit for horizontally shifting the mover, wherein the fluid passing cavity of the valve is normally not blocked so as to allow a normal flow of the fluid, but when a back pressure is generated in the pipe system, the mover is horizontally shifted to a blocking position so as to make the blocking plate of the mover efficiently block the backflow of the fluid, even in a process in which powder is produced.
40 Citations
22 Claims
-
1. A back pressure blocking sliding valve, comprising:
-
a valve body including;
a fluid inlet part and a fluid outlet part provided in upper and lower parts of the valve body, respectively, with a fluid passing cavity defined between the fluid inlet part and the fluid outlet part;a mover including a blocking plate seated thereon, the blocking plate functioning to block the fluid inlet part, the mover being shifted to the fluid passing cavity when it is required to block a fluid flow; and a mover shifting unit shifting the mover, wherein when a back pressure is generated, the mover shifting unit shifts the mover to a blocking position at which the blocking plate blocks the fluid inlet part, and the blocking plate seated on the mover floats due to a pressure difference produced by the back pressure inside the valve body, and closes the fluid inlet part, thereby blocking the back pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification