LNG immersed pump

A submersible pump and pump body technology, applied in the field of LNG, can solve the problems of low power, liquid inflow and outflow restrictions, etc., and achieve the effects of large working flow, weight reduction and life extension

Active Publication Date: 2014-02-12
CHENGDU ANDERSON MEASUREMENT
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the rapid development of LNG technology, the requirements for the function of LNG filling equipment are higher, so it is determined that the LNG filling equipment must continu

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
  • LNG immersed pump
  • LNG immersed pump
  • LNG immersed pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0049] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0050] Such as Figure 1 to Figure 12 As shown, the LNG submersible pump of the present invention includes a pump body, and the pump body is a motor chamber, and the motor chamber is provided with a stator 10 that cooperates with each other and a rotor shaft 99 that is covered with winding coils, wherein the stator 10 is composed of A plurality of stator 10 iron cores provided with heat dissipation grooves 25 are overlapped, and each stator 10 iron cores are evenly ...

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
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses an LNG immersed pump and belongs to the technical field of LNG. A stator and a rotor shaft are arranged in a motor cavity in the LNG immersed pump, and side wall channels are arranged in the side wall of a pump body; a motor upper cover is connected to the rear end of the pump body and provided with a plurality of liquid flowing channels communicated with the side wall channels, and the liquid flowing channels are arranged in an inclined mode and intersect with one another at a liquid outlet; a motor lower cover is connected to the front end of the pump body, liquid via holes communicated with the side wall channels are formed in the motor lower cover, a shell is connected to the motor lower cover to form a working cavity and provided with a first-stage flow guide disc to partition the working cavity into a front cavity and a rear cavity, a flow channel communicated with the front cavity and the rear cavity is arranged on the first-stage flow guide disc, a second-stage impeller is arranged in the rear cavity, a first impeller is arranged in the front cavity, a liquid inlet is formed in the front cavity in a connected mode, and an inducer is arranged in the liquid inlet; the rotor shaft penetrates through the motor lower cover and the working cavity and extends into the liquid inlet, and the first-stage impeller, the second-stage impeller and the inducer are all arranged on the rotor shaft in a sleeved mode. The LNG immersed pump is simple in structure and suitable for being popularized and used.

Description

technical field [0001] The invention relates to the technical field of LNG, in particular to an LNG submersible pump. Background technique [0002] LNG is an abbreviation for liquefied natural gas. The main component is methane. LNG is colorless, odorless, non-toxic and non-corrosive, and its volume is about 1 / 600 of the volume of the same amount of gaseous natural gas. Therefore, liquefied natural gas is an effective way to store and transport natural gas, and it has developed rapidly this year. [0003] The LNG submersible pump is a core power output equipment that installs the pump and the motor in a sealed metal container to achieve zero leakage, avoid explosive environments, and eliminate ignition conditions for transporting liquefied natural gas and related cryogenic liquids. The key issues to be solved in the development include: research on electrical equipment of LNG submersible pumps, mainly research on low-temperature electrical insulation materials and low-tem...

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): F04D13/08F04D29/58F04D29/00F04D29/44
Inventor 宁扬忠刘超曾学兵蒋兴文夏星
Owner CHENGDU ANDERSON MEASUREMENT
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