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Analysis on the Risk of Application and Maintenance of Natural Gas Air Compressor

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Analysis on the Risk of Application and Maintenance of Natural Gas Air Compressor

Date:2017-06-28 Author:senleijidian Click:

Natural gas air compressor is to improve the natural gas pressure and transportation of natural gas core equipment, in the gas storage and transportation and mining has a very important role. Regular maintenance and maintenance of air compressor, is conducive to improving the efficiency of gas field mining to protect the personal safety of personnel maintenance, to avoid the occurrence of large dust in the gas accident. Through the exploration of the problems in the maintenance of natural gas air compressor, the paper puts forward the problems and control methods which should be paid attention to in the maintenance, and explores the risks in the maintenance, so as to realize the effective control, so as to ensure the normal use of the users.

      Overview of Natural Gas Air Compressor

      In the middle and late gas field development and transportation, natural gas compressor is one of the essential equipment. The use of natural gas air compressor can effectively improve the efficiency of mining and transportation, to ensure the production of mining for China's gas field development made a great contribution to the cause. However, in the gas field development process, because the compressor occupies an important position, so the maintenance and maintenance of air compressor is very important thing.

      In the course of the use of many parts of the air compressor will be the phenomenon of wear and tear, parts of the wear and tear will lead to abnormal work of the air compressor, so the air compressor to do regular maintenance work. Air compressor problems are not timely maintenance, mining process will lead to the safety of life damage, will also affect the mining plan. The air compressor parts and other parts of the regular inspection and maintenance, the existence of the problem of diagnosis and maintenance, which China's gas field mining business has a great positive effect.

      Air compressor is composed of piston, cylinder, crankshaft, connecting rod, motor and other components, when the air compressor began to run, the crankshaft driven by the motor to do the rotation, at the same time, under the action of the connecting rod, the piston is doing reciprocating movement. Crankshaft rotation a week, the piston will reciprocate once, at the same time, the cylinder of the suction, compression, exhaust process is also ongoing, this is a working cycle of the air compressor. The working principle of the air compressor is not complicated, but in the air compressor work, will use a lot of small parts, any small parts of the damage may lead to a major accident, so we must do Good air compressor air compressor routine maintenance work, in the air compressor before the maintenance must find the exact impact of air compressor work factors, the air compressor work in the abnormal sound, etc. should be particularly careful, according to the fault Different nature of the classification, identify the hazards of maintenance operations, the corresponding risk control, the environmental problems caused by their corresponding control.

      Risk Assessment of Natural Gas Air Compressor Maintenance

      In order to effectively identify and evaluate the hazards and impacts of maintenance operations of natural gas compressor units, to take appropriate risk control and reduction measures, the possibility of causing health, safety and environmental damage is minimized, especially for natural gas air compressor Group maintenance project for risk identification and evaluation. The risk of natural gas air compressor unit is inherent, the level of assessment of various types of risk, and then determine the order to solve the problem, put forward to improve the safety level of measures, so as to the use of natural gas compressor damage and Loss to a minimum. Risk identification of natural gas air compressor unit maintenance operations, is a high technical content, the risk of large operations, involving road traffic, equipment maintenance and repair operations, electrical operation, flammable or explosive materials or gas, occupational health, fire , Environmental protection and other security areas, a wide range.

      Therefore, it is necessary to carry out hazard identification and evaluation before maintenance, and ensure that the process of maintenance work of natural gas compressor unit meets the requirements of quality, health, safety and environmental management.

      Risk assessment Risk assessment of the hazards and impacts involved in the activities of the office environment, maintenance and repair operations, and the corresponding risk reduction according to the risk level using the operating conditions risk assessment method (LEC method) or pre-risk analysis method And control measures. The pre-hazard analysis classifies the severity of the dangerous events, which are generally divided into four levels: the first level is catastrophic, mainly for the death of personnel or the scrapping of the system; the secondary level is serious, mainly for the staff Serious injury, or serious damage to the system; three is mild, the staff were slightly injured or the system is slightly damaged; four is slightly, the performance of the staff was only injured or the system damage level is lower than the three standard. The risk of the event of the possibility of classification, generally divided into five levels: one, frequent or continuous occurrence; Second, the machine life cycle appears several times; the third, in the life cycle occurs; Fourth, in the life cycle is not easy to happen, but it may occur; the fifth, is not easy to happen? Can also think it will not happen. The use of this method of analysis, allowing maintenance personnel to their respective functions of the corresponding adjustments, neither waste time to repair, without delay the progress of construction, according to different levels, we can choose a different method of control, In accordance with the actual situation of the urgency, we can specify a reasonable measure for the corresponding maintenance, the need for the use of air compressor parts of the corresponding adjustments.

      The use of pre-risk analysis method, can effectively carry out the risk assessment of the maintenance site, the maintenance of natural gas air compressor is mainly engaged in natural gas air compressor units and equipment maintenance, etc., using this approach, Maintenance equipment and tools for risk assessment is of great significance. When the air compressor is responsible for the above problems, according to the rated level of its classification, can effectively estimate the risk of its existence, and then take the appropriate measures to estimate the maintenance method, which involves the Business risk assessment, this method can reduce the possibility of accidents, in the event of an accident can also be effective control and timely prevention, the maximum protection of personnel life and property safety.

      With the continuous development of China's social economy, the demand for energy is also increasing, natural gas air compressor will be more and more widely used in gas field development and natural gas gathering and transportation, and air compressor maintenance is daily The focus of the work, due to the maintenance process will have a certain risk. Therefore, the risk assessment must be carried out before maintenance to ensure the safety of maintenance personnel and improve the quality of maintenance.

      Risk Control in Natural Gas Air Compressor

      1, natural gas compressor maintenance principles

      The development of any thing has a certain law, and thus work according to the method, can do more with less. Maintenance and maintenance of natural gas air compressor to master a certain method, but also to comply with certain principles and requirements, in accordance with the principles of maintenance and maintenance can extend the service life of the machine.

      First of all, the maintenance of air compressor to regular, can not wait until the degree of serious wear and tear before the concern, only to think of its corresponding maintenance and maintenance, according to the specified time to its regular inspection and maintenance, can not wait for problems Began to pay attention, and other issues began to focus on the phenomenon may cause greater wear and maintenance of machinery, to some extent affected the progress of mining, all problems should be stopped in the possible phase; Second, the mechanical maintenance is a Long-term work, in the use of air compressor process, maintenance work should be carried out to avoid long-term regardless of serious problems; the same time, to correctly handle the "maintenance" and "repair", "support" and "use" relationship , Only repair do not raise or only do not care are futile. In the maintenance and maintenance of the process, we should pay attention to step by step, to ensure quality. One by one inspection, not missed or missed, the maintenance process to detect problems in a timely manner, do the record, the problem should be promptly reflected to the relevant departments; operation process can not exceed the load of air compressor to eliminate security risks. At the same time, maintenance and maintenance process to pay attention to the accuracy of proofreading equipment to ensure its flexibility; testing equipment safety and reliability, to prevent dangerous accidents.

      2, maintenance methods

      Natural air compressor daily maintenance and maintenance method is to reduce the damage of air compressor parts to extend the life of air compressor, daily maintenance and maintenance is extremely critical and necessary. Routine maintenance work mainly includes: regular lubrication of the equipment and oil changes, equipment, anti-corrosion work, regular calibration equipment, such as the accuracy, so as to minimize the wear and failure of parts, so that the equipment as far as possible in the normal working condition The According to the different circumstances of the machinery, the specific maintenance process, maintenance time is generally divided into quarterly maintenance, semi-annual maintenance and annual maintenance.

      In the quarterly maintenance, each quarter to vent the air compressor to the appropriate cleaning inspection to ensure that the sensitivity of electromagnetic valves. In general, the more clean the venting system cleaning, the more flexible the action of the solenoid valve; the solenoid valve before the copper-based sintered filter to clean, try to make it clean and dirt; filter filter for regular inspection, And for the specific use and environmental factors to consider whether to replace the valve at all levels should also be a comprehensive and careful cleaning, the coke as much as possible to clean; clean the external air compressor to ensure that its clean and dirt-free; according to the specific circumstances of the replacement Air compressor oil; in the cleaning work is completed, the air compressor to the movement of the structure of the calibration, inspection. Such as checking the tightness of the V-belt, the lubrication of the main motor, adjust the gap between the parts to ensure the flexibility of its work; pay attention to the separator, emptying the trachea, filters, recycling tanks, etc. Sewage.

      In the semi-annual maintenance, to check whether the pressure gauge is qualified, the pressure controller action value is within the specified range; check the air compressor movement mechanism is normal operation, action value is flexible; check the performance of gas tank safety valve In order to ensure that it is in the safe use of the maximum pressure in the safe use of the time to open; carefully clean the outside of the air compressor and the tank part of the cavity to see the compressor and suction filter is clean and need to be replaced; Carry out a careful inspection to prevent its leakage; the motor, electrical appliances to detect, to ensure its normal work.

      In the annual maintenance, the air compressor will be sent to the labor office to develop the unit for testing, proofing safety valve, check the cooling fan, check valve and other parts, replace the coolant, the hydraulic cylinder or stepper motor, step limit device Comprehensive inspection. The annual inspection takes a lot of material manpower and time, so the construction unit is required to formulate its own planned quarter and plan it strictly.

The inspection and maintenance of the machinery of the air compressor is one of the means to ensure the safety of the personnel of the mining personnel and avoid the occurrence of the accident. The risk of the maintenance of the air compressor can effectively guarantee the safety of the machinery and ensure the progress of the construction. With the rapid development of natural gas industry, natural gas air compressor is increasingly being applied to natural gas storage and distribution stations, gas stations and filling stations, and air compressor maintenance is the daily operation of natural gas stations important work, The identification and control of the hazards in the maintenance process of the air compressor is the key to ensure the successful completion of the maintenance task, and it is also the prerequisite for improving the safety awareness of the maintenance personnel and preventing the occurrence of the safety accident. The air compressor for regular maintenance and repair, can help us better mining of transport resources, in summary, in the natural gas air compressor maintenance process, we have to prescribe the drug, to find the specific problems of air compressor , One by one to solve, regular maintenance, to ensure that the air compressor in the work will not be any problems caused by the safety of mining personnel damage.

      In short, in order to gas mining in the safe mining, civilized construction, we must do a good job of natural gas air compressor maintenance control work, the corresponding risk control.


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