Screw air compressor installation and commissioning complete set of procedures Raiders

The installation and commissioning of the air compressor is a basic work, which is related to the future use of the equipment: it is also a systematic project, from pre-sales, sales to after-sales, through the whole process of the experience in the Heilongjiang Hulan Cement Plant and Dongguang After several installations and commissioning work of air compressors of many companies and other companies, it is considered that installation and commissioning work is very important and not simple. The impact on the progress and quality of installation and commissioning includes not only the problems of the air compressor equipment itself, but also the professional quality of the installation and commissioning personnel and the skill level of the operators.

The installation and commissioning of the screw air compressor is not only a test for the air compressor manufacturer, but also a test for the user. For the manufacturer, whether the equipment passes or not, and whether the commissioning personnel have the ability and experience are very important. For the user, whether the equipment selection is proper, whether the layout is reasonable, whether the infrastructure is qualified, and whether the follow-up training can keep up is a big test.

First, air compressor selection

Selection is the first step in air compressor procurement. Each manufacturer has different requirements for the air supply volume and compressed air quality of the air compressor. The larger factory, like Dongguang Company, has more than 30 air compressors with more than 40 cubic meters, and Hulan Cement Factory 20 There are about 10 cubes, and some small companies, usually 3 to 5 cubic meters, are enough. After knowing the amount of gas production, the manufacturer selects the air compressor supplier through various channels or bidding procedures. After selecting the good manufacturer and brand, the individual must go to the manufacturer for inspection, and after the inspection, sign the contract. After a month or so, the air compressor manufacturer placed an order to manufacture the air compressor, and the manufacturer can supply the product directly when it is in stock.

Second, preparation before installation

After the contract is signed, the air compressor manufacturer and user will enter the preparation stage of equipment installation. For larger air compressors, the preparation time is longer. For smaller air compressors, the preparation period is naturally shorter. For example, two air compressor stations on the north-south line of Dongqing Company, after signing the contract, the site of the plant is close to the production line. The civil works are “permanent” buildings, leaving a space in the factory and according to the standard station type. The design and construction of the Hulan Cement Plant, in the construction of the air compressor station, just set up a simple mobile board room. The cost is lower, and the space for increasing the position of the aircraft can also be adjusted, as long as the area of ​​the movable board room is increased. The smaller air compressors can be freely worn by women, some in the corners of the production line, and some are isolated independently, depending on the manufacturer's situation.

Third, installation and commissioning

installation

After the screw air compressor is delivered to the user, the installation is relatively simple, because it does not need to be the basis of the base like the piston machine, and the piston machine is fixed with a large screw. The screw machine can be placed on the machine base or on a flat floor. However, during the installation and commissioning process, attention should be paid to changes in various details to prevent unnecessary accidents, so that the installation and commissioning work can be carried out in an orderly and efficient manner.

The installation of the air compressor should comply with the relevant local laws and regulations and strictly abide by the following regulations:

1. The air compressor should be lifted by lifting equipment with a bearing capacity greater than the weight of the unit. The lifting speed and acceleration should be limited to the permitted range;

2. Try to install the air compressor in a cool, clean, well-ventilated place to ensure that the air inhaled by the air compressor is clean and the moisture content is minimal;

3. The air inhaled by the air compressor is not allowed to contain flammable gas and corrosive gas to avoid possible explosion or internal corrosion;

4. The air-cooled machine should preferably have an exhaust fan or air duct to direct the hot air to the outside to avoid hot air circulation to the air inlet;

5. The discharge of air compressor sewage and waste oil shall comply with the regulations of the local environmental protection department;

6. The power supply line guiding the air compressor must match its power and install safety devices such as air switch and fuse. To ensure the reliability and safety of electrical equipment, it must be grounded reliably.

Commissioning and operation After completing the installation of the equipment, check whether the motor or belt steering is clockwise. If it is reversed, make adjustments; check that the incoming line is correct. After these tasks are completed, the various parameters in the control panel are checked, and some parameter settings can be adjusted, and the passwords entered by the manufacturer are modified. The main parameters of the screw air compressor test include: rated pressure upper limit, rated pressure lower limit, fan starting temperature, fan shutdown temperature, host starting time, fan starting time, Xing angle delay time, loading delay time, no-load delay Time, stop delay time, start delay time, standby delay time, drain open time, drain off time, start mode, load mode, communication mode, oil filter reset, oil finer reset, gas filter Reset, lubricant reset, grease reset, oil filter maximum usage time, maximum oil usage time, maximum air filter usage time, main unit rated current, fan rated current, exhaust pre-requisite. With temperature, load temperature, protection temperature, exhaust powder temperature, gas supply shutdown pressure, unloading pressure high limit, current imbalance, phase failure protection time, overload restart delay and so on.

In addition, the pipeline should be laid before the start-up, check the valve opening status of the pipeline system, and the vent valve should be closed. Some air compressors with aftertreatment devices sometimes require post-processing manufacturers to operate on site. After checking, you can test the equipment.

Pay attention to the following points during the commissioning operation;

1. The commissioning of the new machine must be carried out by the commissioning personnel designated or approved by the company;

2. Before starting the machine, confirm that there are no ones in the unit, and check whether there are any remaining items and tools, and close the unit door: first notice the safety of the people around the unit when starting the machine;

3. During the test run, strictly check the running direction of the air compressor. When it is found that the reverse rotation should stop immediately, cut off the power supply, and turn any two of the three-phase lines back and restart.

Will damage the air compressor (each factory power supply maintenance must pay attention! );

4. The air compressor can't work under the exhaust pressure higher than the nameplate, otherwise it will cause the motor to overload and burn out:

5. When the air compressor is in remote control, the machine may start at any time and should be listed for reminding;

6. When the air compressor fails or there are unsafe factors, do not force the power on. At this time, the power should be cut off and marked.

Fourth, management and training

Operator training includes training of technicians and managers, which is taught by sales or after-sales personnel. The main contents of the lecture include the structural principle of the air compressor, equipment maintenance, maintenance, and fault handling. The conditional good can be explained by the courseware projection equipment, and combined with the actual situation of the equipment. Operator training is varied in form, time can be long or short, and multiple trainings can be performed as needed.

The installation and commissioning of the air compressor is important and complicated, and it is necessary to install it carefully, check the order, and the parts are effective. In order to provide quality and high quality screw air compressor products, we need to strengthen training and training assessment.