1. The operation mode of thermal power plants mainly includes three aspects, namely start-up and shutdown operation, economic operation and breakdown and countermeasures.
The fundamental requirements for the operation of thermal power plants are to ensure safety, economy and quality of energy. In terms of safety, if the thermal power plant cannot operate safely, it will cause human casualties, property damage and accidents, and it will not be able to continuously provide electricity to users, resulting in major economic losses.
The basic requirements to ensure safe operation are:
1. The quality of manufacturing, installation and maintenance of the equipment must be excellent;
2. the requirements of shipping instructions and strictly operate equipment start and stop and load adjustment confclosely to operating procedures;
3. Monitor and record various operating parameters to detect operation. deviations and anomalies as early as possible and eliminate defects in a timely manner;
4. Patrol to monitor whether operating equipment and systems are in good condition, in order to quickly discover the cause of the breakdown and take preventive measures;
5. Regularly test various protection devices to ensure they operate accurately and reliably.
2. Definition of thermal power plant:
A thermal power plant, called a thermal power plant, is a plant that uses coal, oil and natural gas as fuel to produce electricity. Energy. Its basic production process is as follows: fuel Heated water is burned in the boiler to turn into steam, which converts the chemical energy of the fuel into energy thermic. The steam pressure causes the steam turbine to rotate and thermal energy is converted. in mechanical energy. Then, the steam turbine drives the generator to rotate, converting mechanical energy into electrical energy.
3. Specific measures to reduce fuel consumption of thermal power plants are:
1. Sliding start and stop setting. Sliding parameter starting can shorten the starting time and has the advantages of good heat transfer effect, early loading and low steam and water loss. The sliding parameter shutdown can quickly cool the unit, reduce maintenance downtime, and improve equipment utilization and economy.
2. Strengthen fuel management and equipment operation management. Regularly check the status of the equipment and operating conditions, and perform various calculs of heat balance and index so that timely measures can be taken to reduce heat loss.
3. Based on the operational performance of different types of equipment and their mutual coordination and restriction relationships, maintain each unit operating under the working conditions with the best overall economic benefits when the load of the power plant changes, accordingly; at each The method of optimal load distribution between units is used to increase or decrease the power of the unit.
Ford Escape Battery Size
1. The function of the water supply pre-pump:
(1) To increase the sliding pressure of the deaerator during operation, rapid saving, while ensuring the operation safety of the water pump feed, operating in series with the feed water pump;
(2) Since the speedoperating pressure of the front pump is low, the pump required the height of the inlet discharge (that is, the steam (corrosion margin) is smaller, thus reducing the installation height of the degasser and saving the construction cost of the main part;
(3) After the water supply is reinforced by the front pump, its outlet pressure head is high Due to the limited cavitation margin. required by the feed water pump and additional spray head under small flow rates, it can effectively prevent the cavitation of the feed water pump
2. p>
1. The inlet and outlet pipes are cast on the lower body of the pump. The inlet and outlet are connected by flanges. inspected without moving the pump body or dismantling it inlet and outlet pipes Hydraulic flow The channel is of the double volume type.te, the material of the pump body is ZG25, the lower part of the pump body is equipped with a guide key, so that the pump body can expand freely along the guide key and the cover The upper part of the pump body is equipped with an exhaust valve.
2. Front Pump Features
This is a Valta 055-27 12V battery.
The lifespan of car batteries:
1. Regular car batteries use lead-acid batteries. The service life is basically 200-500 times and the service life. It's about It's 2-4 years. Cars with automatic start-stop function are equipped with special batteries, which have a longer lifespan, with a lifespan of 4 to 6 years. New energy vehicles use lithium batteries, which can be used for 5 to 8 years.
2. If you feel that the battery cannot be charged orthe starter motor is weak and the headlights are visibly dimmed, you should remove the battery and charge it with a charger for 12 to 24 hours. it still doesn't work and the mileage is reached. If the vehicle has traveled more than 50,000 kilometers and the generator is not defective, consider replacing the battery.
How to maintain car batteries?
1. When using batteries in winter, care should be taken to ensure that the electric batteries and wire connectors are firmly connected and in good contact. Install an isolation device on the battery to prevent battery damage. the temperature is not too low and does not increase the resistance. According to regulations, adjust the electrolyte density and always keep the battery in a fully charged state to prevent the battery from being damaged by a decrease in electrolyte density.
2. Lors of battery use, water evaporation and water electrolysis during charging will cause the liquid level to drop. Therefore, the fluid level should be checked every 5-6 days in summer and daily. 10 to 15 days in winter at height and add distilled water as needed. Except for the drop in liquid level caused by leakage, no electrolyte should be added, otherwise the battery life will be shortened.
3. The battery fluid level should be 15mm higher than the pole plates. If the fluid level is too high, it may overflow and corrode surrounding parts. This can also cause the positive and negative poles to conduct themselves. , causing self-discharge. If the liquid level is too low, the upper part of the electrode plate will be easily exposed to the liquid level, which will not only reduce the battery capacity, but also reduce the electroplate.exposed rode will also be vulcanized quickly.
4. When adding liquid, do not allow other substances to fall into the battery. If substances fall inside, do not use metal objects to collect them. Use dry wooden sticks to remove impurities, such as. like iron wire or copper wire. After removing the hook, the metal molecules will enter the battery under the corrosion of hydrophobic acid and form self-discharge, damaging the battery.