Immersible pump water flow non-return device
A technology of a non-return device and a submersible pump, which is applied to the components of the pumping device for elastic fluid, the pump, the pump element, etc., can solve the problems of low bearing capacity of the rubber gasket, affecting the sealing effect, easy tearing, etc. , to achieve the effect of increasing the base area, ensuring the sealing performance, and increasing the sealing effect.
Inactive Publication Date: 2016-01-06
AOTE TIANJIN PUMP
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Problems solved by technology
[0002] During the installation process of the deep well submersible pump, a rubber gasket will be added to the size of the connecting flange of the pump body, and the connecting flange has a sealing water line. If the pressure increases when the lift is high, the rubber gasket will bear The capacity is not great, it is easy to tear, which seriously affects the sealing effect
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[0011] As shown in the figure, a water flow check device for a submersible pump includes a flange 1 and a rubber gasket 2. There is at least one sealing groove 3 on the contact surface between the flange 1 and the rubber gasket 2, and the rubber gasket 2 has a sealing groove 3. The grooves 3 correspond to the sealing protruding rings 4 one by one, and the sealing protruding rings 4 can extend into the sealing groove 3 to fill the sealing groove 3. When the sealing structure bears a large pressure, since the flange 1 and the rubber gasket 2 bear most of the pressure, the cooperation between the sealing convex ring 4 and the sealing groove 3 will not be affected by the pressure, and the part of the The sealing performance can still be guaranteed, which makes the sealing structure more suitable for use under high pressure.
[0012] The inner surface of the sealing groove 3 is a tapered surface inclined inwardly from top to bottom, and the sealing protruding ring 4 is adapted to t...
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The invention provides an immersible pump water flow non-return device. The immersible pump water flow non-return device comprises flanges and rubber seal pads; the contact surfaces of the flanges with the rubber seal pads are provided with at least one sealing groove; sealing convex rings which are in one-to-one correspondence with the sealing grooves are disposed on the rubber seal pads; the sealing convex rings can extend into the sealing grooves so as to fully fill the sealing grooves. The immersible pump water flow non-return device has the beneficial effects that the contact area of the rubber seal pads with the flanges is increased without increase of the number and the thickness of the rubber seal pads, and the sealing effect is better by means of deformation of the rubber seal pads.
Description
technical field [0001] The invention relates to a water flow check device for a submersible pump. Background technique [0002] During the installation process of the deep well submersible pump, a rubber gasket will be added to the size of the connecting flange of the pump body, and the connecting flange has a sealing water line. If the pressure increases when the lift is high, the rubber gasket will bear The ability is not great, it is easy to tear, which seriously affects the sealing effect. Contents of the invention [0003] The problem to be solved by the present invention is to provide a submersible pump water flow check device, which overcomes the deficiencies in the prior art. [0004] In order to solve the above technical problems, the technical solution adopted in the present invention is: the water flow check device of the submersible pump includes a flange and a rubber gasket, and at least one sealing groove is provided on the contact surface between the flange...
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IPC IPC(8): F04D29/08
Inventor 陈书民董海涛魏永胜
Owner AOTE TIANJIN PUMP