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A rotating speed measuring device and measuring method for a hydraulic submersible pump

A speed measurement and submersible pump technology, applied in the direction of using a device that measures the time required to move a certain distance, can solve problems such as inaccurate speed measurement of hydraulic submersible pumps, and achieve the effect of simple structure and easy installation

Active Publication Date: 2020-09-15
WUHAN MARINE MACHINERY PLANT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of inaccurate measurement of the rotational speed of existing hydraulic submersible pumps, an embodiment of the present invention provides a rotational speed measurement device and method for hydraulic submersible pumps

Method used

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  • A rotating speed measuring device and measuring method for a hydraulic submersible pump
  • A rotating speed measuring device and measuring method for a hydraulic submersible pump
  • A rotating speed measuring device and measuring method for a hydraulic submersible pump

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] In order to better understand the present invention, the structure of the submersible pump is briefly described below:

[0032] figure 1 It is a structural schematic diagram of an existing hydraulic submersible pump, such as figure 1 As shown, the hydraulic submersible pump includes a static part and a rotating part, wherein the static part of the hydraulic submersible pump includes a pump casing 1 and a friction ring 2, and the friction ring 2 is arranged at the opening at one end of the pump casing 1, through which a plurality of bolts 3 Connect to pump housing 1. The rotating part of the hydraulic submersible pump includes an impeller 4 and a hub 5. The impeller 4 is coaxially fixedly connected to one side of the hub 5. A p...

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Abstract

The invention discloses a rotational speed measuring device and measuring method of a hydraulic liquid submersible pump and belongs to the field of ship liquid cargo handling systems. The device comprises a proximity switch bracket, a proximity switch, a calibration member and a processing module. The proximity switch bracket is arranged on a stationary portion of the hydraulic submersible pump. The proximity switch is arranged on the proximity switch bracket. The calibration member is arranged on one side of a hub of the hydraulic submersible pump far from an impeller. The proximity switch and the calibration member are arranged with an interval in an axial direction of the hub. A distance between the proximity switch and an axis of the hub is equal to the distance between the calibrationmember and the axis of the hub. The processing module is electrically connected to the proximity switch and is used for receiving a signal sent by the proximity switch and calculating a rotational speed of the hydraulic liquid submersible pump according to the received signal. The rotational speed measuring device can accurately detect the rotational speed of the hydraulic liquid submersible pumpand has the advantages of a simple structure and convenient installation.

Description

technical field [0001] The invention relates to the field of ship liquid cargo loading and unloading systems, in particular to a rotational speed measuring device and a measuring method of a hydraulic submersible pump. Background technique [0002] The submersible pump is the pumping equipment used on the ship to transport the liquid cargo in the liquid cargo tank to the outside. It is mainly used in FPSO (Floating Production Storage and Offloading, floating production storage and offloading device), product oil tanker, chemical tanker Waiting on the tanker. Common submersible pumps include electric submersible pumps and hydraulic submersible pumps. [0003] The submersible pump needs to be tested before leaving the factory to detect the performance of the submersible pump. The speed of the pump needs to be measured during the test, and the hydraulic submersible pump is driven by a hydraulic motor. At present, the commonly used method is to calculate the speed of the hydra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/66
CPCG01P3/66
Inventor 王建国熊大柱丁元亮
Owner WUHAN MARINE MACHINERY PLANT
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