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Undisturbed switching method for operating modes of multi-stage pump station and energy dissipater thereof

A technology of non-disturbance switching and energy dissipation devices, which is applied in pump control, machine/engine, liquid variable capacity machinery, etc., and can solve problems such as parking

Active Publication Date: 2009-12-16
YUNNAN DAHONGSHAN PIPELINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When switching to the independent mode, FV03 needs to be turned on, which will also cause the main pump inlet pressure to be zero and stop

Method used

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  • Undisturbed switching method for operating modes of multi-stage pump station and energy dissipater thereof
  • Undisturbed switching method for operating modes of multi-stage pump station and energy dissipater thereof

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Embodiment Construction

[0015] The present invention will be specifically described below in conjunction with the accompanying drawings.

[0016] Such as figure 2 As shown, a first ball valve FV01 and a second ball valve FV02 are set between the front pumping station and the main pump inlet, a third ball valve FV03 is set between the output end of the first ball valve FV01 and the stirring tank / pool, and the second A feeding pump ball valve FV04 is provided between the output end of the ball valve FV02 and the feeding pump. In the present invention, a set of energy dissipation device 1 is added to the rear end of the ball valve FV03. As shown in the dotted line box in the figure, the energy dissipation device 1 includes ceramic Energy board 2, input port ball valve FV06 and output port ball valve FV07. The energy dissipation plate 2 is used to equalize the pressure at both ends of the energy dissipation plate 2 . At the same time, a control ball valve FV05 is added between the ball valve FV03 and ...

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Abstract

The invention discloses an energy dissipater used for undisturbed switching of operating modes of a multi-stage pump station. A first ball valve and a second ball valve are arranged between a forward-stage pump station and a main pump inlet of the multi-stage pump station; a third ball valve is arranged between the output end of the first ball valve and an agitating tank / pool; a feeding pump ball valve is arranged between the output end of the second ball valve and a feeding pump; and the energy dissipater comprises a ceramic energy dissipating plate, an input ball valve arranged at the front end of the energy dissipating plate, an output ball valve arranged at the back end of the energy dissipating plate, and a control ball valve, wherein the input ball valve is connected with the output end of the third ball valve, the output ball valve is connected with one end of the agitating tank / pool, and the control ball valve is arranged between the third ball valve and the agitating tank. The invention also discloses an undisturbed switching method for switching a continuous pumping mode and an independent mode of the multi-stage pump station by utilizing the energy dissipater. By utilizing the energy dissipater and the method, the pressure of the inlet is ensured not to change when the main pump is switched.

Description

technical field [0001] The invention belongs to the field of long-distance slurry pipeline transportation, and in particular relates to a method for switching operation modes of multistage pumping stations without disturbance. Background technique [0002] When using hydraulic principles for long-distance pipeline transportation of solid materials, because the transportation distance ranges from tens of kilometers to nearly a thousand kilometers at most, it is necessary to add multiple pressurized pump stations to complete the transportation task on the way of the pipeline, and the transportation of solid materials During pipeline transportation, the flow rate of the slurry must be controlled within a certain range, so each pump station needs to switch frequently between the independent operation mode and the continuous operation mode, because the main pumps of each high-pressure pump station are positive displacement pumps, and this The main pump must provide an inlet press...

Claims

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Application Information

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IPC IPC(8): F04B49/00
CPCF17D1/20
Inventor 安建普光跃瞿承中马波刘紫能黄朝兵潘春雷刘弘伟王健李申鹏赵增佳张晓楠
Owner YUNNAN DAHONGSHAN PIPELINE
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