High-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission

A technology for turbine generator and cable connection, applied in the direction of cable inlet sealing device, cable joint, etc., can solve the problems of liquefied natural gas vaporization, high price, reducing liquefaction output, etc. stable effect

Active Publication Date: 2013-12-25
CHINA NAT OFFSHORE OIL CORP +2
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the imported turbine equipment is in a technological monopoly and is expensive. All domestic natural gas liquefaction plants

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-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission
  • High-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the drawings, but the present invention is not limited to the following embodiments.

[0017] Such as figure 1 As shown, the present invention provides a high and low voltage cavity cable connection sealing box 9 for power transmission of a low-temperature submerged centrifugal turbine generator (such as figure 2 Middle), including junction box 2 and conductor rod 3. One end of junction box 2 is sealed by junction box cover 4. The conductor rods 3 are arranged in the junction box 2, and they are tightly connected by a double nut (not marked in the figure) and a locking washer 5, and the conductor rod 3 and the junction box 2 are sealed with a cone. The conductor rod 3 in the present invention connects the generator wire 7 and the low-temperature power cable 1 sucked into the cylinder; at the same time, the conductor rod 3 and the generator shell 6 are insulated by an insulating tube 8, which can eff...

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 discloses a high-low pressure cavity cable connection seal box for low-temperature immersed centrifugal turbine generator power transmission. The high-low pressure cavity cable connection seal box is characterized in that the high-low pressure cavity cable connection seal box comprises a junction box and a conductor rod, the conductor rod is arranged in the junction box, conical surface sealing is adopted between the conductor rod and the junction box, one end of the conductor rod is used for being connected with a wire of a motor arranged in a low-temperature immersed centrifugal turbine, and the other end of the conductor rod is used for being connected with a low-temperature power cable in the low-temperature immersed centrifugal turbine. According to the cable connection seal box, the power supplying of the generator can be ensured, and when the electronic transmission is conducted, due to the fact that the conical surface sealing is adopted between the conductor rod in the seal box and the junction box in the seal box, the sealing performance is good, the phenomenon that the performance of a unit is degraded due to the fact that media in a high-pressure cavity leaks into a low-pressure cavity can be avoided, and the efficiency of the whole machine is improved.

Description

Technical field [0001] The invention relates to a high-low-voltage cavity cable connection sealing box used for power transmission of a low-temperature submersible centrifugal turbine generator, and belongs to the field of cable connection sealing between high and low-voltage cavities in a low-temperature submersible hydraulic turbine. Background technique [0002] At present, the JT valve is used in the LNG plant to depressurize the high-pressure LNG from the cold box and then store it. Since the LNG is saturated and easy to vaporize, the valve is used to throttle and reduce pressure, resulting in a large amount of flash steam of the LNG It reduces the output of liquefaction. Therefore, the use of low-temperature submersible centrifugal hydraulic turbines for pressure reduction can increase the production of LNG by 5%. At present, imported turbine equipment is under a technological monopoly and is expensive. All domestic natural gas liquefaction plants use J-T valves for pressu...

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): H02G15/013H02G15/18
Inventor 花亦怀陈杰单彤文肖海涛陈琪万学丽冯颉韩传宝
Owner CHINA NAT OFFSHORE OIL CORP
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