Understand the inspection and maintenance of plant air conditioning, air compressor, and boiler faci

**Air conditioning system operating procedures.

**Air conditioning system includes: **Air conditioning host and supporting water pump, cooling tower and other equipment; The air supply fan system is composed of two parts.

**The management of air-conditioning system equipment should be responsible for the regular maintenance of the system - especially during the period when the machine is not turned on, normal routine maintenance should be done to ensure that the equipment can be put into normal operation at any time.

Before the system is started, a routine inspection should be carried out on each equipment, including the electrical, mechanical and other performance indicators of the main engine, water pump, cooling tower, intermediate fan box, exhaust fan and other equipment, as follows:

Air conditioner host: check whether the electrical wiring is smooth; whether the switch is on and off well; whether the inlet and outlet pipes are unobstructed; Whether the inlet and outlet valves are opened.

Water pump: check whether the pressure difference between electrical circuits, switches and inlet and outlet water ends is normal; whether the valves at both ends have been opened; Check whether the water pump is well connected with the soft connection and the soft connection with the valve to ensure that there is no water leakage.

Cooling tower: check the motor connection to ensure that the cooling tower fan is running forward; Check that the cooling tower make-up pipe is unblocked.

Medium efficiency fan box: check whether the circuit connection of the fan box is smooth; Clean the intermediate filter regularly at least once a month.

Exhaust fan: Check the operation status of the exhaust fan (noise, forward and reverse, vibration, etc.) at least once a month.

When there is no problem with the above items, you can turn on and off the power in the following order:

Start-up sequence: fan box pressurized fan, cooling water pump, cooling water tower, air conditioning main engine fan, air conditioning main engine refrigeration.

Shutdown sequence: air-conditioning host refrigeration, air-conditioning host fan, cooling water pump, cooling water tower, fan box pressurized fan.

Precautions: When the air conditioner is operating normally, the pressure of the cooling water outlet pipe should be lower than the pressure of the inlet pipe MPA; The temperature difference between the inlet and outlet of the cooling water is normal within 5 (the temperature of the outlet water is generally not more than 40).

If the machine is shut down for a long time, the water of the system should be drained to avoid corrosion of the machine and pipes, and the surface of the main equipment should be cleaned and protected. If you want to restart the machine after a long shutdown, you must first flush the system pipes (at least two) until the water from the system is clear and free of impurities.

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The boiler workshop of the power plant is on duty to eliminate the blind position: squad leader, stoker, deputy stoker, assistant, auxiliary machine and other positions. Each post has its own jurisdictional equipment. Patrol inspection is to inspect and maintain the operation of the equipment at a fixed point and at a fixed time.

Current, voltage, temperature, pressure, flow, flow rate, ambient temperature, air pressure, wiring length, etc.

The ability to coordinate with various departments and functional departments and outsourcing, the ability to judge, evaluate and deal with quality accidents, as well as the ability to be familiar with all the production positions and inspection positions of a production line, familiar with all production materials, familiar with the company's process documents and process technical requirements, proficient in the use of various office software, and able to manage a team of inspectors

The soot emission of the boiler is unqualified. He produces carbon dioxide and sulfur dioxide through the combustion of coal, and dust does not meet environmental emission standards, so his measures to control soot emissions can be controlled from these aspects.

1. First of all, he is responsible for selecting high-quality coal, coal with low sulfur content, and the furnace carbon coal seam in the furnace should be evenly flattened.

2. You can add a coal seam spray. Then he will not blow the ash surface if the damp coal is not burned in the front of the furnace, and he cannot be casually played with when burning, 3The blue gray of the drum induction system. Economizers should also be flushed in time. It is necessary to increase the amount of phoenixes. Reduce the blast, add or decrease the blast to be slow, and the boiler should run at low load. Do not operate with positive pressure, it can be controlled between 6 and 7 negative pressures.

4. The dust water must be controlled. There shall be no shortage of water or overflow. Prevent evacuation. There is also a blockage of the water inlet. Whether the water mill dust removal outlet is blocked.

5.If these are done well, you can eliminate the smoke and dust of the qualified standards

Excessive soot cannot be controlled in the operation of the boiler, the problem is in the dust collector, and it has no effect by adjusting the boiler. To solve the problem of the dust collector.

Install dust removal equipment, such as electrostatic precipitator.

If it is a combustion adjustment, reduce the air volume, use low ash coal, reasonably allocate 2 times of air, strengthen soot blowing and strengthen heat absorption and other methods of adjustment.

1. Use high-quality lump coal as much as possible during monitoring.

2. Adopt a small amount of coaling method to make the coal seam in the furnace thin and uniform, and try to burn fully.

3. The boiler load control is appropriate, absolutely not overloaded, too low is not good, 70-90 is better.

4. Overhaul and clean up the dust collector before monitoring.

5. If it is water film dust removal, ensure the amount of water during monitoring to ensure the dust removal effect.

6. If conditions permit, properly clean the flue near the monitoring port, especially the elbow where it is easy to accumulate dust, so as to avoid affecting the sampling during monitoring.

If you don't take it off well, add ammonia or urea.

Installing a dust collector is the key to solving this problem. No matter how you adjust it without a dust collector.

oil level vibration, bearing temperature, coil temperature, cooling water system of the fan;

whether the water vapor pipeline is running and dripping;

Record the dilation indication;

whether the slag conveying belt and coal conveying belt are misaligned;

All equipment needs to be looked at or listened to for any unusual sounds.

The gas boiler technology is mature and very safe, and now many hotels have boiler rooms on the ground floor. You say safety, if it is an atmospheric boiler, then the hidden danger is gas, gas is usually equipped with gas detection, exhaust, alarm devices. Gas steam boiler, the hidden danger of gas is the same as that of atmospheric boiler, and the steam boiler --- also have pressure relief valves, so you don't have to pay too much attention to the distance between the boiler room and the plant.

Hello! If you need a gas leak alarm, you can contact me.

If you need a gas leak alarm, you can contact me.

Hello, the general boiler needs to monitor the following data and parameters: 1, air pressure regulation 2, temperature regulation 3, flue gas temperature detection 4, water level detection 5, regular sewage discharge 6, sampling 7, dosing. The importance of parameters 1. The boiler is a pressure-bearing equipment, and it must be guaranteed to work within the rated air pressure range, otherwise serious accidents such as ** will occur.

2. The temperature and temperature are related to the pressure of steam supplied by the boiler to the steam turbine, and the safety of the steam turbine must be guaranteed within a certain range. 3. The flue gas temperature is related to the bearing capacity of the boiler and affects the life of the boiler. 4. The water level is related to the quality of steam and the safety of the boiler, and the high water level is easy to make the superheater enter the water and the steam carries water, which affects the safety of the steam turbine.

The water level is too low to cause a dry pan. 5. Regular sewage discharge can remove the sediment in the boiler header and ensure the efficiency and safety of the boiler. 6. Sampling and testing can reflect the boiler water quality data, provide adjustment basis, and ensure the operation of the boiler.

7. In order to ensure that the water quality of the boiler is within the control range, the boiler will not corrode.

Temperature, pressure, water volume, steam flow rate, etc., are all parameters to be tested and controlled. The control of pressure is particularly important, because the boiler is a pressure vessel, there are pressure requirements, and the working pressure in operation cannot exceed its design pressure, otherwise it will cause accidents. Safety valves and pressure control interlocks are safety facilities set up to prevent pressure overpressure.

The water volume control is set to prevent the pan from being burned dry. The steam flow rate is set according to the process requirements.

The control parameters on the boiler mainly include drum water level, feed water flow, furnace pressure, etc., I still wanted to, but your problem is really a little too troublesome, it is recommended that you find a book on thermal control to read it slowly.

What boiler are you using?

Gas steam boilers? Hot water boilers? Vacuum boilers? Or fuel? Coal? Electric boilers? The monitoring and measurement parameters of boilers with different fuel forms are inconsistent!

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