What is the purpose of inspection of production equipment? Today Yunweibao will take you for inspection! (Part 2)

Continuing with the practical knowledge about factory production equipment inspections in the previous issue, today we will continue to work with cloud maintenance production equipment full life cycle management experts to gain an in-depth understanding of the specific inspection work.

7. Treatment of equipment defects

1. If a defect occurs in the equipment and can be eliminated by the on-site operation and maintenance personnel, it should be eliminated immediately and recorded in detail in the equipment digital resume of the Cloud Maintenance Factory Maintenance SaaS service.

2. Equipment defects that cannot be eliminated by the job operators must be recorded in detail in the equipment digital resume of Cloud Maintenance Factory Maintenance SaaS service, and reported step by step through Cloud Maintenance’s equipment maintenance work orders. At the same time, they must operate carefully and strengthen observation. Attention deficit development.

3. For equipment defects that cannot be eliminated in time, we must study and decide how to deal with them at the daily production scheduling meeting, and make inspection work order records through the equipment digital resume of the Cloud Maintenance Factory Maintenance SaaS service, so that equipment managers and enterprises can The Lord can access it at any time.

4. Before arranging to deal with each defect, corresponding measures must be taken and a designated person is responsible to prevent the defect from expanding.

8. Dynamic management of equipment operation

     Dynamic management of equipment operation refers to using certain means to enable maintenance and management personnel at all levels to firmly grasp the operation status of the equipment and formulate corresponding measures based on the equipment operation status, such as: using new generation information technology, through cloud maintenance factory The maintenance SaaS service attaches a cloud maintenance QR code to each production equipment to help establish a digital resume of the production equipment. After the code is attached and filed in the system, digital management of equipment assets is realized.

9. Inspection Misunderstandings

     Chemical production is continuous and the equipment is in operation for a long time. Strengthening inspections, discovering hidden dangers in a timely manner, and eliminating accidents in the bud are the key to ensuring long-term stable operation, which requires us to ensure the quality of inspections. During the inspection process, we often make many misunderstandings.

1. Pay attention to the inspection of moving equipment and important equipment, and ignore the inspection of static equipment and minor equipment.

During daily inspections, we often only care about the working conditions of operating equipment, but ignore static equipment, especially static equipment in high places and remote places. This is because we subjectively believe that as long as the moving equipment is running normally and important equipment does not malfunction, the installation will be fine. In this way, small hidden dangers in static equipment, high-altitude equipment, and secondary equipment cannot be discovered and dealt with in time, leading to an increase in the risk of hidden dangers.

2. Be paralyzed and turn a blind eye to existing leaks and hidden dangers that cannot be dealt with online.

During the operation of the device, there are many leaks and hidden dangers that cannot be dealt with online, but they do not pose a great threat to the operation of the device. These hidden dangers are within our control. Over time, we will become numb to these long-standing hidden dangers, and instead pay less attention to them.

3. Pay attention to the form of inspection and ignore the quality of inspection.

To do an effective inspection, you must be attentive, with your eyes, ears, hands, nose, and heart, that is, you must see, listen, touch, smell, and think.

One careful and comprehensive inspection is better than eight superficial inspections. During inspection, we must understand the working conditions of the device at that time so that we can make comparisons and find differences in time to find problems. The sincerity requires us to carry out inspections with thinking, so as to improve the quality of inspections.

4. Ignore safety during inspection. There are various hidden dangers in the device. When inspecting dangerous areas, we must have the psychological preparation and ability to protect ourselves.

This requires us to contact the squad leader during inspections. In dangerous areas, we must work in pairs and wear protective equipment correctly as required, so that when we encounter an emergency, we can respond calmly and ensure personal safety.

Inspection is a commonplace issue.

Many companies have adopted various methods to enhance the quality of inspections. These methods have pros and cons and are worth summarizing and learning from.

In short, talents are the main body of work. Strengthening communication between leaders and employees and fully mobilizing employees' enthusiasm and subjective initiative can ensure work quality and improve work efficiency. At the same time, it is necessary to introduce a new generation of information technology and use cloud maintenance factory maintenance SaaS services to empower equipment managers, achieve full life cycle management of production equipment, and promote the improvement of enterprise production efficiency, cost reduction and efficiency increase.

10. General equipment inspection

The inspections of ordinary centrifugal pumps mainly include:

    Cooling water, coupling, oil level, anchor bolts, operating noise, oil inlet temperature, oil return temperature, current, machine head temperature, front-end bearing temperature, rear-end bearing temperature, front-end bearing vibration, rear-end bearing For vibration and deep well pumps, pay more attention to current, sound and flow rate.

1. Listen to the sound. When there is an abnormality in the operation of the equipment, there will usually be vibration or irregular sounds. The method is to use a listening stick (usually a copper tube, otherwise a screwdriver or F wrench will also work) with one end attached to the ear and the other end in the ear. On the equipment, the key locations are the front and rear bearings of the motor and the pump body.

2. Check the temperature, that is, check the bearing temperature of the motor and pump. It is best to use an infrared thermometer. If you don’t have one, you can try it by hand. Generally, the bearing temperature of the pump is not allowed to exceed 65 degrees. This temperature is probably just what the hand can bear. The temperature is too hot to touch if you get close to it, it must be too high.

3. Check for leaks. For pumps with packing seals, a certain amount of leakage is allowed. Normal leakage is in the form of drops. If it drips or even sprays out, it is abnormal. For pumps with mechanical seals, generally No leakage is allowed, so special attention must be paid.

4. Check the oil level. For pumps with oil cups, pay attention to see whether the oil level in the oil cup is within the normal range.

5. Check the pressure to see if the outlet pressure is within the normal process range.

6. For pumps with bearing cooling water, check whether the amount of cooling water is normal.

7. Check for vibration, mainly to check whether the anchor bolts are loose.

8. Special reminder: It is strictly forbidden to wear gloves when operating and inspecting operating equipment!

9. Centrifugal pumps generally require water for sealing. Don’t forget to check the inlet and outlet of the sealing water! Without water, the seal will burn!

For patrol inspection, the main inspections should be:

1. Import the liquid level of the storage tank to prevent the material from being evacuated;

2. The pump outlet pressure or flow is within the index range;

3. The flow rate of end-face slit fluid (if any);

4. Leakage of the pump body;

5. There is no abnormal sound or vibration in the pump body and bearings;

6. The integrity of the lubricating oil system

7. For mechanical seals using flushing fluid and sealing fluid, check the pressure and flow rate. If there is no flow meter, it should be judged whether it is smooth.

8. If there is cooling liquid in the packing, its pressure should be checked;

9. Check the oil seal leakage of the bearing box.

10. Check the motor current

    These inspections may not be effective within three to five days, but after a long time, by comparing and analyzing the data, you will know the operating status and expected life of the pump.

If you do regular inspections, then there is something wrong. You can feel it without even walking up to it. It’s the sound and smell! Ensuring safety is the most important thing. During inspections, if there are enough people, it is best to work together. In winter, you should also pay attention to saving energy and reducing consumption. Do not turn on the fire steam too much. It is OK if it does not freeze!

11. Precautions for inspection outside the device

⒈Wear labor protection clothing as required, wear a safety helmet, and wear necessary protective equipment (such as walkie-talkies, protective glasses, hydrogen sulfide alarms, ammonia alarms, hydrogen alarms, etc.)

⒉Be familiar with the unsafe factors of the device and check for unsafe conditions;

⒊Understand the safety status of the device;

⒋ Report unsafe hazards in a timely manner if you discover them. If you can handle them yourself, handle them yourself. If you can't handle them yourself, keep a record and report them in a timely manner.

5. Determine the required inspection route and try to implement the two-person system;

6. Pay attention to the wind direction and do not walk in steam clouds

7. Pay attention to objects suspended in the sky;

8. Pay attention to walking on the trench grid screen;

9. Be careful to avoid stepping on oily substances or chemical splashes;

10. Do not enter restricted areas at will.