High-abrasion-resistance sealing device for rhombus valve
A technology with high wear resistance and sealing device, which is applied in valve devices, sliding valves, engine components, etc. to achieve good air tightness.
Inactive Publication Date: 2012-12-19
WUXI GL TUBRO COMPRESSOR
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Problems solved by technology
However, because the valve plate needs to be opened and closed frequently, the sealing ring and the valve plate are always in a state of friction, and the rubber material has poor wear resistance, so there is a disadvantage of poor durability.
Method used
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Embodiment Construction
[0011] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0012] Such as figure 1 Shown: a high wear-resistant sealing device for a rhombic valve includes valve body 1 (left valve body 1a, right valve body 1b), valve plate 2, O-ring seal 3, valve seat ring 4, elastic rubber ring 5 and sealing ring6. The valve plate 2 is clamped between the left valve body 1a and the right valve body 1b, and the left valve body 1a and the right valve body 1b are fastened and connected by bolts. A valve seat ring 4 is embedded between the valve plate 2 and the valve body 1 . A sealing ring 6 is fixed between the valve seat ring 4 and the valve plate 2 . An O-ring 3 is embedded between the seat ring 4 and the valve body 1 . The elastic rubber ring 5 is located between the valve seat ring 4 and the sealing ring 6, with one end against the valve seat ring 4 and one end embedded in the groove of the sealing ring 6, the elastic...
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The invention relates to a high-abrasion-resistance sealing device for a rhombus valve. According to the high-abrasion-resistance sealing device, a valve base ring is embedded between a valve plate and a valve body; a sealing ring is fixed between the valve base ring and the valve plate; an O-shaped sealing ring is embedded between the valve base ring and the valve body; an elastic rubber ring is located between the valve base ring and the sealing ring; one end of the elastic rubber ring is butted against the valve base ring while the other end is embedded in a groove of the sealing ring; and the elastic rubber ring is under a compressed state and tightly presses the sealing ring on the valve plate, so that the excellent air tightness of the rhombus valve is ensured. According to the high-abrasion-resistance sealing device, polytetrafluoroethylene is taken as the material of the sealing ring, so that the sealing device has excellent abrasion resistance and the service life of the rhombus valve is prolonged; the elastic rubber ring is tightly attached to the valve plate, so that the defect of insufficient air tightness of the polytetrafluoroethylene is overcome; and the O-shaped sealing ring is arranged between the valve base ring and the valve body, so that the excellent air tightness of the rhombus valve is further ensured by the double sealing.
Description
technical field [0001] The invention relates to a high wear resistance sealing device, in particular it is a high wear resistance sealing device applied to a rhombic valve. Background technique [0002] The diamond-shaped electric control valve is generally used to adjust the air volume in the air pipeline of the biological oxidation tank of the sewage treatment process. The shape of the flow path of the diamond valve is diamond, and the connection form with the pipeline is flange connection. It is mainly composed of valve body, valve plate, bracket, driving device, sealing ring and positioning pin. The diamond valve controls the area of the flow channel by moving the valve plate up and down, thereby adjusting the air flow in the pipeline. ZL patent number is 201010513587.8, and the invention name is sewage treatment aeration flow regulating valve. In the sealing structure of the valve plate and the valve body, the seal between the valve plate and the valve body is gene...
Claims
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IPC IPC(8): F16K3/02
Inventor 金华明
Owner WUXI GL TUBRO COMPRESSOR