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

On-line fast balance correcting method of COG (coke oven gas) pressurizing fan

A technology of balance correction and pressurized fan, which is applied in the direction of static/dynamic balance test, machine/structural component test, measuring device, etc. It can solve problems such as incorrect calculation results and unusable single-plane balance

Active Publication Date: 2015-06-03
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The COG gas pressurized fan has four-stage rotors and eight counterweight surfaces, and the second-stage rotor and the third-stage rotor are connected by elastic couplings. If a weight is installed on any counterweight surface, the system will have The process of redistribution of balance, the test data is the result of redistribution, not exactly the response of the counterweight, so the calculation result is incorrect, and single-sided balance cannot be used

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
  • On-line fast balance correcting method of COG (coke oven gas) pressurizing fan
  • On-line fast balance correcting method of COG (coke oven gas) pressurizing fan
  • On-line fast balance correcting method of COG (coke oven gas) pressurizing fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The COG gas pressurized fan online rapid balance correction method of the present invention comprises the following steps:

[0020] Step one, such as figure 2 As shown, set the speed trigger cursor 7 on the fan shaft 2, use the laser tachometer to detect the fan speed through the speed trigger cursor 7, and use the waveform analyzer to measure the power frequency vibration amplitude and vibration amplitude of the bearing housings 6 at both ends of the two shafts. Select the effective value of the vibration velocity;

[0021] Step 2. The fan is filled with gas and started to run. Measure the vibration amplitude and phase of the bearing seats 6 at both ends of the two rotating shafts 2. Gradually open the damper and add load. Record the fan when the damper opening is 15%, 20% and 30%. Operating conditions, the operating time of each working condition is not less than 20 minutes, record the power frequency vibration amplitude and phase of each bearing seat 6 after 20 min...

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 an on-line fast balance correcting method of a COG (coke oven gas) pressurizing fan. According to the method, a rotating speed triggering cursor is arranged on a fan rotating shaft, a laser rotating speed meter is adopted for detecting the rotating speed of the fan, and a waveform analysis instrument is adopted for measuring the industrial frequency vibration amplitude value of each bearing seat; the fan is fully filled with gas and is started to operate, the vibration amplitude value and the phase of each bearing seat are measured, an air door is gradually opened for loading a load, the fan operation work conditions at different opening degrees of the air door are recorded, the industrial frequency vibration amplitude value and the phase of each bearing seat are recorded, when the phase angle deviation between the adjacent work conditions is smaller than 15 degrees, the condition shows that the fan operation condition is stable, and the data are recorded and are used for balance correction; a weight balancing block is arranged in a way that a rotor and the bearing seats are adjacent to the weight balancing surface, in addition, the angle and the weight balancing mass are set, and meanwhile, proper weight balancing holes are selected for setting the weight balancing blocks. The method has the advantages that the on-line fast balance correction can be implemented on the COG pressurizing fan, the balance requirement of the fan is met, the balance correcting efficiency of the fan is improved, and the normal and reliable operation of the fan is ensured.

Description

technical field [0001] The invention relates to an online rapid balance correction method for a COG gas pressurized fan. Background technique [0002] COG gas pressurization fan is the key equipment of gas pressurization station, widely used in metallurgical industry. Such as figure 1 As shown, the COG gas pressurized fan has a complex structure, which is composed of four-stage compression rotors 1, and every two rotors are connected in series on a rotating shaft 2, and the two ends of the two rotating shafts 2 are provided with bearing housings 6 and elastic couplings are used in the middle 3 connected, the drive motor 4 drives the two rotating shafts 2 to rotate through the elastic coupling 5, and pressurizes the gas through the four rotors 1. [0003] The speed of the COG gas pressurized fan is 2980 rpm, and the balance requires high precision. Usually, the dynamic balance function of the CSI-2130 waveform analyzer is used to perform multi-plane balance correction of e...

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): G01M1/38
Inventor 张瑞菊陈红琳刘晗徐胜军
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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