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Device for improving mechanical sealing performance of industrial centrifugal pump

A technology of mechanical seals and centrifugal pumps, which is applied in the direction of mechanical equipment, pumps, non-variable pumps, etc., can solve the problems of immature technology, high price, poor reliability, etc., so as to prolong the operation period, improve mechanical sealing performance, and facilitate The effect of the operation

Inactive Publication Date: 2015-08-26
安徽瀚洋节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing enterprises have introduced non-leakage pumps such as magnetic pumps and shielded pumps from abroad to improve the mechanical sealing performance of the pumps, but due to the disadvantages of immature technology, poor reliability, high price, and difficult maintenance, they cannot be widely used.

Method used

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  • Device for improving mechanical sealing performance of industrial centrifugal pump

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Embodiment Construction

[0009] exist figure 1 Among them, a device for improving the mechanical sealing performance of a centrifugal pump, which includes a circulating process pipeline and a regulating valve, a circulating process pipeline 3 is installed between the pump outlet pipe 2 of the centrifugal pump 1 and the pump inlet pipe 4, and a regulating valve is installed on the circulating process pipeline 3 One end of the valve 5 circulation process pipeline 3 is installed behind the pump inlet valve 6, and the other end is installed in front of the pump outlet valve 7. A regulating valve 5 is installed on the circulation process pipeline 3 . When the liquid enters the pump inlet pipe, it will be discharged out of the pump outlet pipe after being processed by the centrifugal pump. The pressure at the pump outlet is greater than the pump inlet pressure. The medium in the outlet pipe enters the circulation process pipeline during the operation of the centrifugal pump and is controlled by the regulati...

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Abstract

The invention discloses a device for improving the mechanical sealing performance of an industrial centrifugal pump. The device comprises a circulating process pipe and an adjustment valve. The circulating process pipe is installed behind a pump inlet valve, wherein the other end of the circulating process pipe is installed in front of a pump outlet valve. The adjustment valve is installed on the circulating process pipe. As the adjustment valve on the circulating process pipe is controlled, the flow of process media, returning to an inlet pipe, at the portion of a centrifugal pump outlet pipe is adjusted, the flow of the media flowing back to a pump inlet is changed accordingly, the pressure of the media of the pump inlet can not be suddenly changed, the stability of the media of the pump inlet is further improved, and the mechanical sealing performance of the centrifugal pump is improved.

Description

Technical field [0001] The invention relates to a device for improving the mechanical sealing performance of industrial centrifugal pumps Background technique [0002] Generally, centrifugal pumps mostly use mechanical seals, and the mechanical seal performance is the key to the length of the centrifugal pump's operating cycle. Most of the existing enterprises have introduced non-leakage pumps such as magnetic pumps and canned pumps from abroad to improve the mechanical sealing performance of the pumps. However, due to the disadvantages of immature technology, poor reliability, high price, and difficult maintenance, they cannot be widely used. The mechanical seal has high requirements on the working stability of the centrifugal pump during operation. The working stability of the centrifugal pump depends on the stability of the pump inlet medium. In the industrial device, it is affected by the process conditions. The composition and pressure of the centrifugal pump inlet m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/02
Inventor 不公告发明人
Owner 安徽瀚洋节能科技有限公司
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