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A miniature intermittent pump for lubricating bearings of hydrodynamic fan cooling towers and its installation and working methods

A technology of bearing lubrication and hydrodynamic fan, which is applied to components of pumping devices for elastic fluids, engine components, machines/engines, etc., can solve problems such as complex transmission methods, difficult equipment maintenance, and low safety and reliability. Achieve the effects of simple transmission relationship, broad application prospects and promotion value, and strong safety and reliability

Active Publication Date: 2019-11-12
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, because the internal parts of the commonly used oil delivery pump are various and complicated, and the internal flow field of the oil pump is an unsteady flow when in use, (refer to Patent Document 3, which introduces a kind of end face cam-driven oil distribution with rotating window. The plunger pump has the characteristics of high speed and large displacement, but because of its many internal parts, the transmission mode is relatively complicated, it is prone to failure, and its safety and reliability are low.
) often breaks down. In the hydrodynamic fan cooling tower, because of its limited space, it brings many difficulties to equipment maintenance. Therefore, it is necessary to design an oil delivery pump with strong reliability and long service life.

Method used

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  • A miniature intermittent pump for lubricating bearings of hydrodynamic fan cooling towers and its installation and working methods
  • A miniature intermittent pump for lubricating bearings of hydrodynamic fan cooling towers and its installation and working methods
  • A miniature intermittent pump for lubricating bearings of hydrodynamic fan cooling towers and its installation and working methods

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Embodiment 1

[0036]In this embodiment, a miniature intermittent pump used for lubricating bearings of a cooling tower of a hydrodynamic fan has dimensions of the entire miniature plunger pump, with a total length of 154.25 mm, a maximum radius of 25.00 mm, and a minimum radius of 16 mm. The cam is set by the external driving part. The cam adopts a semicircle and semiellipse design, and is driven by constant angular velocity rotation with a period of 0.5s. Before the work starts, the entire miniature intermittent pump is placed in the oil tank, the inside of the pump casing II is filled with lubricating oil (grease), and the pressure of the lubricating oil (grease) inside and outside the pump casing is set to 10kpa. The elastic coefficients of the oil inlet spring, oil outlet spring and plunger recovery spring are set to 201N / m.

[0037] The cam adopts a semicircle and semiellipse design and rotates at a constant angular velocity. In the semi-elliptical area, when rotating from position a ...

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Abstract

The invention discloses a micro intermittent pump for lubricating a hydrodynamic fan cooling tower bearing and a mounting and working method of the micro intermittent pump. The micro intermittent pump consists of three parts, i.e. a transmission body, a pump shell and an oil outlet body. The micro intermittent pump is a non-continuous oil conveying pump, and comprises three processes, i.e. oil discharging, oil feeding and stopping, in an oil supply period, and oil feeding and oil discharging are asynchronous; the micro intermittent pump is mainly designed to supply oil for lubricating a turbine bearing in a hydrodynamic fan cooling tower, and the design of an oil path of a common oil pump is simplified; the micro intermittent pump is compact in structure and convenient to machine and assemble; and the micro intermittent pump is simple in working principle, high in reliability and easy to popularize and use.

Description

technical field [0001] The invention relates to the technical field of a cooling tower oil delivery pump, in particular to the oil delivery of hydraulic fan cooling tower hydraulic turbine bearings, and is a miniature intermittent pump used for lubricating the hydraulic fan cooling tower bearings. Background technique [0002] As a cooling system for large-scale equipment, cooling towers are mainly used to reduce the temperature of circulating water and improve the utilization rate of circulating water. According to different production needs, the structure of cooling towers is also different. Cooling towers are generally barrel-shaped, and their internal space is very limited. In the cooling tower with relatively large limitations, the size of the oil delivery pump becomes the key to selection, but at present, the commonly used oil delivery pump has a large size due to its complex structure (refer to Patent Document 1, a kind of used for The pump of the cooling and heat di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/00F04B53/16F03B11/06F03B11/00
CPCF03B11/00F03B11/06F04B53/00F04B53/162Y02E10/20
Inventor 屈波芦月丁惠华章志平刘佳佳何中伟阚阚付士凤
Owner HOHAI UNIV
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