Energy-saving single-stage centrifugal pump long in service life

A centrifugal pump, single-stage technology, applied in the direction of pumps, pump devices, pump components, etc., can solve the problems of large force on the fulcrum rolling bearing, wear of the impeller and seal ring, and short service life of the bearing, so as to reduce the sealing pressure and the shaft. The effect of increasing the force and prolonging the service life

Active Publication Date: 2014-10-08
KUNMING SHUIXIAO TECH
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is inevitable to cause deflection of the pump shaft. The force of the fulcrum rolling bearing is large, the service life of the bearing is s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Energy-saving single-stage centrifugal pump long in service life

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the embodiments and drawings will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments, which are common in the art. As far as technical personnel are concerned, other drawings can be obtained without creative labor.

[0034] Such as figure 1 As shown, a long-life energy-saving single-stage centrifugal pump includes a pump body (1), a pump suction chamber (2), a pump press-out chamber (3), and a pump cover (4), which are located at the lower part of the pump body (1) It is the suction chamber (2) of the pump, the upper part is the press-out chamber (3) of the pump, the pump cover (4), the impeller (5), the pump cover (4) covers the upper part of the pump press-out chamber (3), and the impeller ( 5) Rotate at a high speed in the pumping chamber (3) to make the liquid in the impeller (5) form centr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Provided is an energy-saving single-stage centrifugal pump long in service life. The lower portion of a pump body (1) is provided with a suction chamber (2) of the pump, the upper portion of the pump body is covered with a pump cover (4) to form a delivery chamber (3) of the pump, and an impeller (5) rotates at a high speed in the delivery chamber of the pump. The right side of the delivery pump of the pump is connected with a delivery chamber outlet (6) of the pump, and the left side of the suction chamber of the pump is connected with a suction chamber inlet (7) of the pump. A water film bearing (8) is arranged at the lower portion of an inner hole of the pump cover, pressure water of the water film bearing is supplied by the delivery chamber of the pump, sucked water is filtered through an annular filter screen (9), enters the water film bearing through a conveying pipe (10) and is distributed to a static pressure cavity of the water film bearing through 4-12 throttling orifices (11) to form a rigid static pressure water film for a pump shaft (16), and the pump shaft rotating at a high speed is separated from the water film bearing through the 0.03-0.05 mm static pressure water film. The service life of the single-stage centrifugal pump is prolonged.

Description

technical field [0001] The invention relates to the structural design of a single-stage centrifugal pump. Background technique [0002] Cantilever single-stage centrifugal pumps, also known as conventional pumps in this application, are the most widely used pumps in water delivery machinery at home and abroad. Among centrifugal pumps, the utilization rate of conventional single-stage centrifugal pumps exceeds 80%. In the conventional pumps in the current domestic and foreign pump markets, the bearings supporting the radial force of the pump shaft are all rolling bearings. The rolling bearings must be lubricated with grease, so they must be separated from the pump impeller, the water delivery chamber is far away, and the cantilever is long. In the case of radial force and power arm, the longer the cantilever, the greater the bending stress on the pump shaft. It is inevitable to cause deflection of the pump shaft. The force of the fulcrum rolling bearing is large, the servic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04D1/00F04D13/06F04D29/66
Inventor 刘牧管焕钦
Owner KUNMING SHUIXIAO TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap