High temperature wear-resistant two-way hard seal purge slurry shear valve
A high-temperature wear-resistant, hard-sealed technology, applied to shaft seals, sliding valves, valve details, etc., can solve the problem of absolute zero leakage of hard-sealed surfaces, achieve the effect of reducing installation accuracy requirements and facilitating processing
Active Publication Date: 2017-07-21
XUANDA IND GRP
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Problems solved by technology
[0005] In order to solve the problem of the two-way hard seal of the shear valve and the absolute zero leakage between the hard seal surfaces, the present invention provides a high temperature wear-resistant two-way hard seal purge oil slurry shear valve
Method used
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Embodiment Construction
[0026] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:
[0027] Such as figure 1 As shown, a high-temperature wear-resistant two-way hard-sealed purge slurry shear valve includes a valve body 1, a gate plate 3, a valve stem 4, a valve cover 5 and a sealing mechanism, and the gate plate 3 is arranged inside the valve body 1. The lower end of the valve stem 4 is connected to the upper end of the gate plate 3, and the valve cover 5 is placed on the upper end of the valve body 1 after passing through the valve stem 4. An adjustable floating valve seat device is arranged symmetrically on both sides of the gate plate 3. The adjustable floating valve seat device includes The floating valve seat 2, the self-sealing ring 23, the elastic assembly and the fine-tuning assembly connected in sequence, the fine-tuning assembly includes a retaining ring 21, a pressure plate ring 28 and a fine-tuning screw 29, and the pressure pla...
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The invention relates to a high-temperature wear-resistant type bidirectional hard-sealing slurry-blowing shear valve and solves the bidirectional hard-sealing problem of the shear valve. The shear valve comprises a valve body, a gate, a valve rod, a valve cover and a sealing mechanism. Adjustable float valve seat devices are symmetrically arranged at the two sides of the gate, and every adjustable float valve seat device comprises a float valve seat, a self-sealing ring, an elastic component and a fine tuning component which are connected in sequence. Each fine tuning component comprises a baffle ring, a pressing plate ring and a fine tuning bolt. The pressing plate rings are arranged between the elastic components and the baffle rings; the fine tuning bolts laterally pass through the baffle rings and then lean against the pressing plate rings. The elastic component is arranged between the float valve seat and the baffle ring to guarantee the sealing between the float valve seat and the gate whether fluid flows from left side to right side or flows from right side to downside; the further sealing between the float valve seat and the inner wall of a valve body is realized at high pressure in a manner of adjusting a spring component and screwing the fine tuning bolt to press the seal-sealing ring.
Description
technical field [0001] The invention relates to a valve, in particular to a high-temperature wear-resistant two-way hard seal purge oil slurry shear valve. Background technique [0002] In the prior art, it is suitable for controlling the opening and closing of pipeline media under various working conditions such as solid-liquid two-phase suspensions, liquids and gases containing solid particles or fibrous impurities in petroleum, chemical, electric power, and environmental protection industries. The gate valve is relatively common. [0003] And most of the existing shear valves are one-way sealed, which makes the shear valve only suitable for one-way flow of fluid, such as patent number 201220183952.8 (a self-clearing high-temperature super wear-resistant shear valve) disclosed in A spring is arranged on one side between the seat and the valve body to realize the sealing of the shear valve when the fluid flows from left to right. [0004] Since the right valve seat of the...
Claims
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IPC IPC(8): F16K3/16F16K3/314F16K41/02
CPCF16K3/0263F16K3/20F16K3/314F16K41/02
Inventor 粟德王强李龙
Owner XUANDA IND GRP