Detachable-type secondary sealing structure
A secondary sealing and detachable technology, applied in non-variable volume pumps, components of pumping devices for elastic fluids, machines/engines, etc., can solve the economic loss of users, medium leakage in the pump, sealing Aging wear and other problems, to avoid economic losses
Pending Publication Date: 2018-05-29
GUANGZOU BAIYUN PUMP GROUP
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Problems solved by technology
[0002] The current water pump generally only has one layer of seal on the pump body itself. The seal of the water pump will age and wear after long-term use, resulting in leakage of the medium in the pump. The maintenance personnel can only stop the water pump for maintenance, resulting in economic losses for users.
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[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0018] combine figure 1 and figure 2 As shown, it schematically shows the detachable secondary sealing structure of the present invention, including the pump shaft 1 and the secondary sealing device 2 sleeved on the pump shaft 1, and the two surround the secondary seal set around the pump shaft 1. The sealing chamber 3 and the secondary sealing device 2 are detachably connected to the pump body 6; the secondary sealing chamber 3 is provided with a sealing mechanism 4 and an electromagnetic driver 5, and the electromagnetic driver 5 is located on one end of the sealing mechanism 4 (that is, the sealing device medium end or atmospheric end), the sealing mechanism 4 includ...
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The invention relates to the field of water pump sealing, in particular to a detachable-type secondary sealing structure. The detachable-type secondary sealing structure comprises a pump shaft and a secondary sealing device arranged on the pump shaft in a sleeving mode, and a secondary sealing cavity is defined by the pump shaft and the secondary sealing device. The secondary sealing device is detachably connected to a pump body. The secondary sealing cavity is internally provided with a sealing mechanism and an electromagnetic driving device. The electromagnetic driving device is arranged atone end of the sealing mechanism. The sealing mechanism comprises a stationary ring assembly and a moving ring assembly which are arranged on the pump shaft in a sleeving mode. The stationary ring assembly is fixedly connected to the inner side wall of the secondary sealing cavity. The moving ring assembly is movably connected to the pump shaft in a matched mode. A gap is formed between the stationary ring assembly and the moving ring assembly. When the electromagnetic driving device is energized, the electromagnetic driving device attracts or repels the moving ring assembly, the moving ring assembly is forced to move towards the stationary ring assembly and be tightly attached to the stationary ring assembly. According to the detachable-type secondary sealing structure, the secondary sealing device is detachably arranged on the pump body, the secondary sealing device can be actively started to form secondary sealing, further leakage of a medium in a pump is prevented, and the economicloss of a user is avoided.
Description
technical field [0001] The invention relates to the field of water pump sealing, in particular to a detachable secondary sealing structure. Background technique [0002] The current water pump generally only has one layer of seal on the pump body itself. The seal of the water pump will age and wear after long-term use, resulting in leakage of the medium in the pump. Maintenance personnel can only shut down the water pump for maintenance, causing economic losses to users. Contents of the invention [0003] The purpose of the present invention is to provide a detachable secondary sealing structure. A secondary sealing device is detachably arranged on the pump body. The secondary sealing device can be actively activated to form a secondary seal to prevent further leakage of the medium in the pump and avoid cause economic losses to users. [0004] In order to solve the above problems, the present invention provides a detachable secondary sealing structure, which includes a pu...
Claims
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IPC IPC(8): F04D29/10F04D29/12
CPCF04D29/106F04D29/126
Inventor 罗学春孙建云杨光周庆平
Owner GUANGZOU BAIYUN PUMP GROUP