A novel needle valve structure sulfur hexafluoride gas valve
A technology of sulfur hexafluoride gas and needle valve, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of poor sealing effect, use site and environmental restrictions, etc., to enhance safety and enhance device sealing The effect of ensuring the sealing of the equipment
Active Publication Date: 2018-06-05
上海上芃电气有限公司
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Problems solved by technology
There are also needle valve structures in the market, but at the same time, they all adopt hard sealing technology, and the sealing effect is not good. Due to the limitation of the needle valve itself, it must be tightened and loosened by threads to drive the valve stem to move up and down. Therefore, if you want to tighten or open the handle during use, there are certain restrictions on the site and environment of use, and there is a certain inconvenience
Method used
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[0018] Such as Figure 1-2 As shown, the sulfur hexafluoride gas valve with a novel needle valve structure described in the embodiment of the present invention includes a valve body 1, a plug seal ring 2, a plug 3, a valve stem 4, a sealing plug 5, and a handle 6 , positioning plate 7, positioning pin 8, sealing plug sealing ring 9, valve stem sealing ring I10, valve stem sealing ring II11, the outer wall of the protruding part of the front end of the screw plug 3 is provided with threads, and the thread on the inner wall of the valve body 1 can be Interlocking with each other, rotating the screw plug 3 clockwise or counterclockwise can make the screw plug 3 advance or retreat in the valve body 1; the rear end of the screw plug 3 is provided with a groove; at the same time, the screw plug 3 is provided with a groove The groove can be used to install the plug sealing ring 2, thereby enhancing the sealing performance of the overall valve structure;
[0019] The front end of the...
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The invention relates to a sulfur hexafluoride gas valve of a novel needle valve structure. The sulfur hexafluoride gas valve comprises a valve body, a screw plug sealing ring, a screw plug, a valve rod, a sealing screw plug, a handle, a positioning plate, a positioning pin, a sealing screw plug sealing ring, a valve rod sealing ring I and a valve rod sealing ring II. The sulfur hexafluoride gas valve has the beneficial effects that the guarantee of the sealing performance of the valve is most important for the sulfur hexafluoride gas valve; when the valve is opened or closed by rotating the valve rod, the handle does not need to be moved vertically; in addition, the overall valve device has the self-locking function through the addition of the structures of the positioning plate and the positioning pin, use is convenient, and meanwhile the sealing performance of the device is also improved; and the ethylene-propylene-diene monomer o-shaped sealing rings are utilized so that the sealing performance of the device can be further ensured; and the whole valve device is simpler and more convenient to use in the use process; and safety is also greatly improved.
Description
technical field [0001] The invention relates to a sulfur hexafluoride gas valve device, in particular to a novel needle valve structure sulfur hexafluoride gas valve. Background technique [0002] Sulfur hexafluoride gas is a colorless, odorless, non-toxic, non-flammable and transparent gas. It may be liquefied under normal conditions. Under a uniform electric field, its insulation is three times that of air. At atmospheric pressure, its insulation is equivalent to transformer oil. At present, electrical products using sulfur hexafluoride gas as arc extinguishing medium and insulating medium have been widely used in the power sector and industrial and mining enterprises, which has promoted the rapid development of the power industry. When in use, if the sulfur hexafluoride electrical products leak, the reliable and safe operation of the sulfur hexafluoride electrical products cannot be guaranteed. Safe and reliable operation has become one of the important tasks of the pow...
Claims
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IPC IPC(8): F16K1/00F16K1/48F16K1/46F16K41/02F16K35/10
CPCF16K1/00F16K1/46F16K1/48F16K35/10F16K41/02
Inventor王金胜
Owner上海上芃电气有限公司