Anti-corrosion sealing ring
A seal ring and corrosion-resistant technology, applied in the field of seal rings, can solve problems such as lack of sealing effect, corrosion of seal rings, and influence on impeller rotation
Inactive Publication Date: 2018-02-09
SHANXI TIANHAI PUMP IND CO LTD
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- Abstract
- Description
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Problems solved by technology
The above-mentioned sealing ring is made of stainless steel. During the operation of the pump, because the conveyed medium often contains corrosive factors, it will cause corrosion of the sealing ring, and the radial gap between the centrifugal pump impeller mouth ring and the sealing ring will become larger or the sealing ring will be broken. , can not achieve the sealing effect, resulting in a large amount of backflow, reducing the actual flow of the pump; moreover, due to the shaking of the impeller and other reasons, the sealing ring and the impeller are stuck, affecting the rotation of the impeller
Method used
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Embodiment 1
[0015] image 3 Is a schematic cross-sectional structure diagram of an embodiment of the present invention; Figure 4 Yes image 3 The top view of the invention; a corrosion-resistant sealing ring of the present invention, comprising a stainless steel ring and rubber, characterized in that: the stainless steel ring 1 is attached with an inner rubber layer 3; the stainless steel ring 1 is attached with an outer rubber layer 4 on the outside. This solves the problem of medium corrosion of the seal ring, and at the same time, since the inner ring of the seal ring is made of rubber, it will not stick to the impeller.
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The invention provides an anti-corrosion sealing ring which comprises a stainless steel ring body and rubber. The anti-corrosion sealing ring is characterized in that an inner side rubber layer is attached to the inner side of the stainless steel ring body, and an outer side rubber layer is attached to the outer side of the stainless steel ring body. The anti-corrosion sealing ring has the beneficial effects that the problem that the sealing ring is corroded by media is solved, and meanwhile as an inner ring of the sealing ring is made of rubber, adhesion to an impeller is avoided.
Description
Technical field [0001] The invention relates to a sealing ring used for a submersible pump for a high-temperature corrosion-resistant well. Background technique [0002] The prior art submersible pump for high temperature and corrosion-resistant wells has a front seal ring. The function of the front seal ring is to separate the high pressure zone and the low pressure zone in the pump to prevent a large amount of liquid from flowing from the high pressure zone to the low pressure zone; There is also a back port seal ring in the submersible pump. The back port seal ring is generally used in conjunction with the balance hole. Its main function is to balance the axial force and reduce the pressure in the seal chamber. At the same time, it prevents abrasion between the pump impeller and the pump casing, improves the water flow at the inlet of the pump, and facilitates maintenance and replacement. The above-mentioned sealing ring is made of stainless steel. When the pump is in operati...
Claims
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IPC IPC(8): F04D29/08F04D29/16
CPCF04D29/086F04D29/167
Inventor 李跃民薛少辉赵红娟李有田
Owner SHANXI TIANHAI PUMP IND CO LTD