Compressor holding failure and become Suqian 80 people poisoning “culprit”
Release Date: 2017-06-15 Source: China Compressor Network View: 20399
Core Tip: The truth of the incident on May 25, Suqian City, can become a science and technology limited company workshop, gas leakage occurred, more than 80 employees in the inhalation of some kind of gas, resulting in discomfort hospitalized in the accident. 2 June morning, from Suqian City, Su Su Su Industrial Park Management Committee was informed that, after investigation, the accident is can become a science and technology company A6 workshop air compressor screw bearings caused by wear and tear of compressor mechanical failures The accident was caused by a secondary accident. According to the park management committee, the cause of the accident is the power air compressor bearing seat and screw holding failure, due to friction generates a lot of heat, resulting in the screw cylinder lubricant cracking to produce small molecules of hydrocarbons
Truth of the matter
May 25, Suqian City, can become a technology limited company workshop, gas leakage occurred, more than 80 employees in the inhalation of some kind of gas, resulting in discomfort hospitalized in the accident.
On the morning of June 2, from Suqian Su Su Su Industrial Park Management Committee was informed that, after investigation, the accident is can into the technology company A6 workshop air compressor screw bearing wear caused by compressor mechanical failure triggered by secondary accidents.
According to the park management committee, the cause of the accident was caused by the power air compressor bearing seat and screw hold failure, due to the friction of a large number of heat, resulting in the screw cylinder lubricant cracking to produce small molecules of hydrocarbons, and contains additives decomposition of sulfur, phosphorus, and other compounds, the formation of irritating gases through the compression piping system into the workbench, and the dissemination of the workshop, triggering the operator to appear uncomfortable reaction.
At present, the Suqian Environmental Protection Bureau Testing Center, Emergency Response Center and the third-party agency Jiangsu Innovation Safety Inspection Co., Ltd. continue to monitor the workshop of Building A6 of Kecheng Technology, the environment around the factory and the workplace monitoring indicators are in line with national standards, and no abnormalities have been found. All of the employees who were unwell have been discharged from the hospital.
At present, the management committee of the park has carried out a liability investigation into the accident, and according to the results of the investigation, the responsible units and responsible persons will be dealt with according to the law.
Synopsis
At about 4:30 a.m. on May 25, in Suqian City, Suzhou Park, an enterprise called can into the workshop of science and technology, a suspected hazardous gas leakage, 80 workers felt unwell, was sent to the hospital for treatment.
Reporters rushed to the hospital where the workers, these workers are still relatively weak, many people face yellow, pace floating. Gas flavor is very strange, and like gas, and like ammonia, in short, very bad smell, and now my throat is still very difficult, burning pain. Workers recalled that they were the night shift started at 8:30 pm on the evening of the 24th, has been working until about 4:30 in the morning when the odor came out of the workshop, at that time there were workers in the workshop felt uncomfortable. It is understood that after the workers were evacuated, the factory called an ambulance at about 6 o'clock and sent the workers to the hospital for medical treatment.
It is not clear what kind of gas is present, but it is suspected to be toxic gas, which should have leaked out after the volatilization of the oily gas. One of the hospitals where the workers were treated was called Workers' Hospital, and the director of the hospital introduced that about 50 workers were treated in the hospital, and most of them were in good condition, and six of them were sent to ICU, but they were not seriously hurt.
The relevant person in charge of the management committee of the park confirmed that, according to the investigation, the gas leaked from the factory, the preliminary judgment should be the overheating of lubricating oil vaporization, inhaled by the workers, generally does not cause too much harm. Now there are 80 workers were sent to the hospital for examination, of which 10 workers have been discharged. At present, the relevant departments are investigating the matter.
Small reminder:
Caused by the screw compressor head stuck mainly due to the following reasons:
1, poor clearance at the exhaust end of the head.
2, poor clearance at the inlet end of the head stuck.
3, reverse jamming.
4, lubricating oil reasons
a. Long-term shutdown, compressor parts head of the internal oil is insufficient, resulting in an instant lack of oil, resulting in jamming, so long-term shutdown of the equipment to the head first to add a sufficient amount of oil, and then start the equipment; b. Running the machine oil supply is insufficient, including lubricant replacement or add untimely, or oil blockage, leakage, resulting in the lack of oil head of the jamming; c. The oil level is too low resulting in the loss of bearings on both sides of the screw rotor in the operation process, resulting in severe wear of the bearings to make the yin and yang. Lubrication, resulting in serious wear and tear of the bearings so that the yin and yang screw friction jamming. d. Too many impurities in the lubricating oil.
5、Compressor bearing aging wear serious
6, foreign matter into the jam. Most often seen in the maintenance of inattention, foreign objects from the inlet inhalation, resulting in jamming. Individuals also have oil filter damage, larger impurities from the oil injection port into the jam, for the larger head with gears, there are also damaged gears and fall off the tooth slag through the return port into the suction chamber caused by the rotor jam. In the maintenance of such heads generally in the oil return port plus a copper mesh to avoid gear damage when the failure to expand.
7, gear jamming. As a result of the head with gears and its gears rely on specialized oil injection holes lubrication cooling, so when the oil quality is not good, it is easy to cause the oil injection holes carbonized, blocked, so that the gear jammed.
The main solutions for compressor head jamming are:
Chemical cleaning and then dismantling; manual dismantling; hydraulic method of dismantling; electrolysis method of dismantling.
Based on the production, personal safety considerations, the compressor on time, according to the standard maintenance, and the machine operating status monitoring, not only is necessary, but also necessary!