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

High-voltage flameproof three-phase asynchronous motor

A three-phase asynchronous, flame-proof technology, applied in asynchronous induction motors, electric components, electrical components, etc., can solve the problems of increased safety motor test difficulty, increased manufacturing and operating costs of specifications and models

Inactive Publication Date: 2011-12-21
WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] "GB 3836.3-2010 Electrical Equipment for Explosive Gas Atmospheres Part 2: Increased Safety "e"" was enforced in August 2011, which made it more difficult to test increased safety motors. Many original specifications and models even Can no longer be produced or used, and the manufacturing and operating costs of the specifications and models that can be produced have also increased significantly. At present, many increased safety motors that were previously used in explosion-proof zone II have to use flameproof ExdIIC explosion-proof grade motors

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
  • High-voltage flameproof three-phase asynchronous motor
  • High-voltage flameproof three-phase asynchronous motor
  • High-voltage flameproof three-phase asynchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 A high-voltage flameproof three-phase asynchronous motor, see figure 1 , figure 2 , image 3 , including the base cylinder 10, the front end cover 14, the rear end cover 21, the rotating shaft 12 and the support, the base cylinder 10 and the foot plate 11 are connected into one body through the support plate, and the base cylinder 10 is provided with a high-voltage junction box The support 1 and the auxiliary junction box support 7 are respectively provided with bearing inner covers 15, 22 and matching curved road rings 16, 23 on the inner side of the joint between the rotating shaft 12, the front end cover 14 and the rear end cover 21, and the two match Form the curved road type flameproof joint surface structure at both ends (the double curved road structure is adopted, the length of the curved road ring and the inner cover of the bearing is between 18 and 40mm, and the flameproof gap is about 0.4mm, while the bearing The length of the explosion-proof cur...

Embodiment 2

[0027] Embodiment 2 A high-voltage explosion-proof three-phase asynchronous motor, which is basically the same as Embodiment 1, the difference is that: the curved path flameproof joint surface structure adopts a single curved path structure, and the flameproof curved path between the inner cover of the bearing and the shaft The flameproof length is between 15 and 70mm, and the flameproof gap is about 0.25mm.

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-voltage explosion-proof three-phase asynchronous motor. It includes a base cylinder, a front end cover, a rear end cover, a rotating shaft and a support. A high voltage junction box support and an auxiliary junction box support are arranged on the base cylinder. The inside of the matching part of the cover is respectively provided with a bearing inner cover and a matching labyrinth ring, which form a labyrinth-type flameproof joint surface structure; Flame-proof structure, its flame-proof length is 28-32mm, and the flame-proof gap is 0.05-0.07mm. The present invention has positive and beneficial effects: it can withstand the hydraulic pressure (explosion) pressure of 2.0Mpa; Chemical sites containing gases with huge explosive energy such as hydrogen and acetylene.

Description

technical field [0001] The invention relates to the field of explosion-proof motors, in particular to a high-voltage flameproof three-phase asynchronous motor. Background technique [0002] The flameproof motor is an explosion-proof motor with a flameproof casing and related measures, which can withstand the internal explosion of the flammable mixture penetrating into the casing through any joint surface or gap without damage, and will not cause external explosion. The ignition of the environment. [0003] The flameproof shell of the flameproof motor is composed of various flameproof parts. The flameproof parts include: machine base, end cover, shaft (rotor), bearing inner cover, junction box, etc. The parts are connected by flameproof joints. The flame path on the surface prevents the flame from spreading outward. The commonly used flameproof joint surface structures of flameproof motors include spigot joint surfaces, plane joint surfaces, rotating shaft joint surfaces,...

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): H02K17/12H02K5/136
Inventor 田儒彰吴宣东赵岩朱妤乔建伟陈中洋姚金艳郭大江吕朝帅杨翠
Owner WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD
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