Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Internally meshed double-screw pump

A twin-screw pump and internal meshing technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of centrifugal force generated by the rotor, reduce noise and vibration, and expand the scope of application

Active Publication Date: 2020-09-25
华旭唐山石油科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical application, the single screw pump also has some shortcomings: the rotor rotates around the axis of the stator at the same time, and the rotor generates centrifugal force.

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
  • Internally meshed double-screw pump
  • Internally meshed double-screw pump
  • Internally meshed double-screw pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention is not limited by the following implementation examples, and specific implementation manners can be determined according to the technical solutions of the present invention and actual conditions. Combine below Figure 1-5 The present invention is described below. The positional relationship of up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0025] Such as Figure 1 to Figure 5As shown, an internal meshing twin-screw pump includes a motor 1, a base 2, a coupling 3, a bearing cover I4, an inner bearing group I5, a bearing seat I6, an inlet cavity 7, an outer bearing group I8, an inner rotor 9, Outer rotor 10, outer connecting cylinder 11, outer bearing group II12, outlet cavity 13, bearing housing II14, inner bearing group II15, bearing end cover II16, characterized in that the outer rotor 10 is a rotating body structure, and the inner part is a spiral surface structure The left and right ends o...

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

The invention relates to an internally meshed double-screw pump which is used for eliminating the problems of vibration to a whole tool and periodic extrusion contact to a bushing caused by planetarymotion of a screw rod of a conventional single-screw pump in the stator bushing. According to the technical scheme, the two ends of an outer rotor are provided with outer bearing units, the outer bearing unit I at the right end is installed in an inlet cavity, the outer bearing unit II at the left end is installed in an outlet cavity, conjugate curve lines are adopted for any section lines of an inner rotor and the outer rotor, the two ends of the inner rotor are provided with inner bearing units, the inner bearing unit I at the right end is installed in a bearing pedestal I, the inner bearingunit II at the left end is installed in a bearing pedestal II, and power is transferred between a motor and the inner rotor through a coupler. The inner rotor and the outer rotor rotate around respective axes as fixed shafts, so that the centrifugal force generated in the operation process of the traditional single-screw pump and the side effect caused by the centrifugal force are eliminated.

Description

technical field [0001] The invention relates to an internal meshing twin-screw pump, which belongs to the technical field of screw pumps. Background technique [0002] The single screw pump is an internal meshing eccentric rotary positive displacement pump. The main components of the pump: a single-head screw and a stator with a double helix usually made of elastic material, the stator is fixed, and the rotor rotates. When the rotor rotates around the axis of the stator in the cavity of the stator, the airtight arm formed between the rotor and the stator will displace along the spiral of the rotor, so the medium can be sent from the suction chamber continuously, at a constant speed, and with a constant volume. to the extrusion cavity. Single screw pumps can be used to transport single or multi-medium fluids, including neutral or corrosive, clean or abrasive, gas-containing or prone to bubbles, high-viscosity or low-viscosity, and those containing chemical fibers or Solid ...

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): F04C2/107F04C11/00F04C15/06
CPCF04C2/102F04C2/107F04C11/00F04C15/06F04C2240/20F04C2240/50
Inventor 叶哲伟罗良冯康谭浪易钦珏
Owner 华旭唐山石油科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com