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

Device and method for reducing dissolved oxygen in cold water in generator

A technology of dissolved oxygen and generator, applied in chemical instruments and methods, water, inorganic chemistry, etc., can solve problems such as adverse effects on safe operation of generators, copper wire rod corrosion, and copper corrosion rate.

Pending Publication Date: 2019-09-06
NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the pH value of the inner cooling water is between 7.0-9.0 (25°C), the dissolved oxygen should be less than 30μg / L. If the dissolved oxygen is between 200μg / L-300μg / L, the corrosion rate of copper will be the largest and will Corrosion of the copper wire rods of the stator winding will have adverse effects on the safe operation of the generator. Measures need to be taken to control the dissolved oxygen in the inner cooling water

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
  • Device and method for reducing dissolved oxygen in cold water in generator
  • Device and method for reducing dissolved oxygen in cold water in generator
  • Device and method for reducing dissolved oxygen in cold water in generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The device for reducing the amount of dissolved oxygen in the inner cooling water of the generator according to the present invention includes a catalytic tank 1 and an inner cooling water tank 2; figure 1 As shown, the catalytic tank 1 is provided with a catalyst frame 19; a hanger 17 is arranged between the catalyst frame 19 and the inner wall of the catalytic tank 1; Tube; the height of the catalytic tank 1 in the vertical direction is greater than the height of the inner cooling water tank 2 in the vertical direction; the catalyst frame 19 is provided with a catalyst 110, and in this embodiment the catalyst 110 is a palladium catalyst 110 , The palladium catalyst 110 is used to catalyze the reaction of hydrogen and oxygen to produce water. The communication pipe includes a first communication pipe 131 and a second communication pipe 132; the first communication pipe 131 is sequentially provided with a communication valve 13 and a communication pipe flange 133; A se...

Embodiment 2

[0027] On the basis of Example 1, as image 3As shown, in this embodiment, the device installation method for reducing the dissolved oxygen in the inner cooling water of the generator is as follows: the catalytic tank 1 is installed above the side of the inner cooling water tank 2, fixed by brackets 3, and a set of brackets 3 connects the catalytic tank 1 and the inner cooling water Box 2, another set of brackets 3 are connected to the catalytic tank 1 and the bracket base 31, and the bracket base 31 is fixed on the ground 5.

[0028] The inner cooling water tank 2 is equipped with an inner cooling water tank exhaust pipe 21, on which an inner cooling water tank exhaust valve 22 is connected in series. The exhaust pipe 111 is connected to the internal cooling water tank exhaust pipe 21 on the top of the internal cooling water tank exhaust valve 22 through the exhaust pipe flange 112 . The first communication pipe 131 of the catalytic tank 1 is connected to the inner cooling w...

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 a device and a method for reducing dissolved oxygen in cold water in a generator, belonging to the field of power generation. The device comprises an internal cold water tankand is characterized by further comprising a catalytic tank. A catalyst frame body is arranged in the catalyst tank. A hanger is arranged between the catalyst frame body and the inner wall of the catalyst tank. A communicating pipe is arranged between the catalytic tank and the internal cold water tank. The catalytic tank is arranged above the internal cold water tank, hydrogen leaked from a stator chamber of the generator in the internal cold water tank and internal cold water dissolved oxygen diffused from internal cold water are diffused into the catalytic tank through the communicating pipe. The hydrogen and the oxygen are subjected to combination reaction under the action of a catalyst to generate water, the oxygen content in the internal cold water tank and the catalytic tank is reduced, causing the dissolved oxygen in the internal cold water tank to continuously diffuse out, the dissolved oxygen continues to react with the hydrogen under the action of a palladium catalyst to gradually reduce the dissolved oxygen in the internal cold water, and finally the purpose of reducing the dissolved oxygen in the internal cold water can be achieved.

Description

technical field [0001] The invention belongs to the field of power generation, and in particular relates to a device and method for reducing dissolved oxygen in inner cooling water of a generator by utilizing hydrogen leakage. Background technique [0002] In the field of power generation, the "water-hydrogen-hydrogen" cooling method is widely used in large turbogenerators. In this cooling mode, the generator rotor and stator core are cooled by hydrogen, and the hollow stator winding is cooled by internal cooling water. Hydrogen leakage occurs during the normal operation of the "water-hydrogen-hydrogen" cooling type turbogenerator. The hydrogen pressure in the stator bore is greater than the internal cooling water pressure of the stator bar. The hydrogen passes through the end bar of the generator to the water collection ring to generate power The PTFE insulated water diversion pipe at the outlet of the machine penetrates into the inner cooling water. During the circulation...

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): C02F1/20C01B5/00
CPCC01B5/00C02F1/20
Inventor 赵丰梁锐牛宗涛郭新茹程战斌
Owner NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
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