Device for improving mechanical sealing of industrial centrifugal pump

A mechanical seal and centrifugal pump technology, applied in the field of devices for improving the mechanical seal of industrial centrifugal pumps, can solve the problems of poor reliability, immature technology, high price, etc. Effect

Inactive Publication Date: 2016-11-09
合肥天沃能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 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 mechanical sealing of an industrial centrifugal pump. The device comprises a circulation technology pipeline and a regulating valve, wherein one end of the circulation technology pipeline is mounted at the back of a pump inlet valve; the other end of the circulation technology pipeline is mounted in front of a pump outlet valve; and the regulating valve is mounted on the circulation technology pipeline. According to the device, through controlling the regulating valve on the circulation technology pipeline, the flow of a working medium, returning to an inlet pipe, at an outlet pipe of the regulating pump is regulated, the flow of the medium flowing back to a pump inlet is changed, and the pressure of the medium at the pump inlet is unlikely to change suddenly, so that the stability of the medium at the pump inlet is improved, and the mechanical sealing of the centrifugal pump is improved.

Description

technical field [0001] The invention relates to a device for improving the mechanical sealing performance of an industrial centrifugal pump. 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): F04D15/00
CPCF04D15/00F04D15/0005
Inventor 魏芳芳
Owner 合肥天沃能源科技有限公司
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