Large intelligent pneumatic dome valve
A dome valve, intelligent technology, applied to valve details, valve devices, engine components, etc., can solve the problems of high maintenance costs and high cost of device downtime, and achieve reliable operation, smooth material passage, and good sealing effect
Pending Publication Date: 2018-05-15
天津市纽普兰环保发展有限公司
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Problems solved by technology
[0005] For large dome valves, the original common failures of dome valves will be encountered. The cost of device shutdown caused by valve damage is high, and the maintenance cost is expensive. Therefore, it is necessary to carry out targeted design to avoid various adverse working conditions and ensure valve safety.
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Embodiment Construction
[0021] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.
[0022] A large intelligent pneumatic dome valve comprises a valve core 3, a lower valve body 9, a middle valve body 6, an upper valve body 7, a rubber sealing ring 5 and a sealing inner ring 4. The left and right sides of the valve core with a spherical segmented valve surface are respectively fixed on the lower valve body through the first shaft 10 and the second shaft 12, and the connection between the first shaft and the lower valve body, and between the second shaft and the lower valve body are connected by sealing components Install. The extension part 13 of the second shaft is connected to the swing actuator, which is a pneumatic drive mechanism, which can make the valve core switch between the closed posi...
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The invention relates to a large intelligent pneumatic dome valve which comprises a valve element, a lower valve body, a middle valve body, an upper valve body, a rubber sealing ring and a sealing inner ring. The left side and the right side of the valve element provided with a segment-shaped valve face are fixed to the lower valve body through a first shaft and a second shaft correspondingly. Theupper valve body and the middle valve body are fixed to the top of the lower valve body through sunk screws, the rubber sealing ring is fixed between the upper valve body and the middle valve body, the middle valve body, the upper valve body and the rubber sealing ring form an internal sealed space, the sealing inner ring with multiple inflation channels formed in the circumferential direction iscontained inside the rubber sealing ring, and each inflation channel formed in the sealing inner ring communicates with the internal sealed space. The upper valve body is provided with a sealing airchannel which communicates with the internal sealed space. According to the large intelligent pneumatic dome valve, the service life of the valve is prolonged, the maintenance frequency and cost are reduced, and the gap that the field of bulk material filling is lack of large-drift-diameter valves is filled.
Description
technical field [0001] The invention relates to the technical field of material transportation, in particular to a large intelligent pneumatic dome valve. Background technique [0002] Dome valve is a special valve widely used in the field of bulk material transportation. At present, the specifications of the dome valves currently in use in my country are generally between DN50 and DN300. The working state is that the rubber sealing ring is pressurized to achieve sealing when it is closed. [0003] According to our company's many years of experience in designing, manufacturing and using various specifications of dome valves, the damage of dome valves during operation has the following situations: 1) The pneumatic actuator does not move properly, and the valve seal fails; 2) The air source pressure is insufficient Insufficient sealing pressure of the sealing ring, failure of the valve seal, and rapid wear of the sealing ring caused by the erosion of the materials carried by ...
Claims
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IPC IPC(8): F16K5/06F16K5/20F16K31/16F16K37/00
CPCF16K5/06F16K5/0668F16K5/0689F16K5/205F16K31/16F16K37/0083F16K37/0091
Inventor 马建民窦志明
Owner 天津市纽普兰环保发展有限公司