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Process fluid lubricated pump

A technology for process fluids, lubricating pumps, used in production fluids, radial flow pumps, fluid couplings, etc., to solve problems such as high viscous losses and inability to allow economical and efficient operation

Inactive Publication Date: 2020-10-27
SULZER MANAGEMENT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In effect, these viscous losses limit the motor speed to about 6000rpm
For higher speeds, viscous losses become too high to allow economical and efficient operation of the pump

Method used

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  • Process fluid lubricated pump
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  • Process fluid lubricated pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] figure 1 A schematic cross-sectional view of a first embodiment of a process fluid lubrication pump according to the invention is shown, which pump is designated in its entirety by reference numeral 1 . The pump 1 is designed as a centrifugal pump for conveying process fluids and has a common housing 2 , a pump unit 3 and a drive unit 4 . Both the pump unit 3 and the drive unit 4 are arranged in a common housing 2 . The common housing 2 is designed as a pressure housing which can withstand the pressure generated by the pump 1 and the pressure exerted on the pump 1 by the environment. The common housing 2 may comprise several housing parts, eg a pump housing and a driver housing, which are connected to each other to form a common housing 2 surrounding the pump unit 3 and the drive unit 4 . The common housing 2 is configured as an airtight pressure housing which prevents any leakage to the external environment.

[0044] In the following description, reference is made b...

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PUM

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Abstract

A process fluid lubricated pump for conveying a process fluid is proposed, having a common housing, a pump unit arranged in the common housing, and a drive unit arranged in the common housing, whereinthe common housing comprises a pump inlet and a pump outlet for the process fluid, wherein the pump unit comprises at least one impeller for conveying the process fluid from the pump inlet to the pump outlet, and a pump shaft, on which each impeller is mounted, wherein the drive unit comprises a drive shaft for driving the pump shaft, and an electric motor for rotating the drive shaft about an axial direction, and wherein a hydrodynamic coupling is provided for hydrodynamically coupling the drive shaft to the pump shaft by means of a transmission fluid. The hydrodynamic coupling is configuredto receive the process fluid as the transmission fluid.

Description

technical field [0001] The invention relates to a process fluid lubrication pump for conveying process fluids according to the preambles of the independent claims. Background technique [0002] Process fluid lubrication pumps for conveying process fluids are used in many different industries. An important example is the oil and gas processing industry, where process fluid lubrication pumps are designed, for example, as multiphase pumps for the transfer of hydrocarbon fluids, e.g. for the extraction of crude oil from oil fields or for oil / gas transport through pipelines or within refineries . Another application of process fluid lubrication pumps in the oil and gas industry is the injection of process fluids, most often water, and especially seawater, into oil reservoirs. For such applications, the pump is designed as a water jet pump, which supplies high-pressure seawater to wells leading to the subterranean region of the oil reservoir. Typical values ​​for the pressure r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/046F04D29/58F04D29/66E21B43/20
CPCF04B9/00F04B39/00F04D13/06F04D29/046F04D29/586F04D29/669E21B43/20F04D13/022F04D13/086F04D1/06F04D29/5806F04D29/0473F04D29/0416F04D13/08F05B2260/232F05B2260/406F16D33/18
Inventor T.菲利克斯M.伯尔尼S.嘉斯曼K.德瑞福
Owner SULZER MANAGEMENT AG
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