Many customers believe that they do not need to own a diesel generator set. You only need to rent it when you need it and return it when you are done with it. This eliminates the need for maintenance and saves a lot of money. In fact, it is better to own the diesel generator set yourself, leasing is not necessarily more cost-effective than buying. Next, Haixing Generator will give you a detailed introduction to why buying a diesel generator is better than renting it? First of all, there is no doubt that the rented diesel generator sets have been used by many manufacturers, and many of them are products on the verge of being eliminated. Compared with the purchased generator sets, the average fuel consumption is much higher. And the longer the manufacturer uses it, the greater the economic losses will be. In the end, manufacturers will find that the cost of leasing and buying a new machine is almost the same. Secondly, the fee for renting a diesel generator set is calculated based on the length of time it generates electricity. The longer you rent it, the higher the rental fee will be. If power generation stops during the lease period

Diesel generator is a kind of small power generation equipment, which refers to the power machinery that uses diesel as fuel and a diesel engine as the prime mover to drive the generator to generate electricity. The entire unit generally consists of a diesel engine, generator, control box, fuel tank, battery for starting and control, protection device, emergency cabinet and other components. Generators are widely used in industrial and agricultural production, national defense, science and technology and daily life. Nowadays, many unscrupulous traders and purchasers falsely report the brand and power of products in order to make huge profits, causing customers to have great misunderstandings about the brand and performance of diesel generator sets. So how to correctly purchase generator sets is what we are concerned about. Next Let me tell you about the pitfalls encountered during the purchase process. 1. Confuse the relationship between KVA and KW, and treat KVA as KW to exaggerate the power and sell it to customers. In fact, KVA is the apparent power and KW is the effective power. 2. The relationship between long-term (rated) power and backup power is not discussed.

When the temperature is low in winter, the cylinder head of a diesel generator is very easy to explode, so the following methods hope to help you: 1. Add cold water after starting. After the diesel engine starts, the temperature inside the diesel generator rises. If cold water is added, the cylinder block and If the cylinder head cools rapidly, it will crack due to cold shrinkage. 2. After shutting down, if the cooling water is not released, the engine will freeze into ice, increase in volume, and cause expansion and cracking of the cylinder block and cylinder head. 3. When the engine is running, there is a shortage of cooling water or the water tank boiler temperature is too high. If the cooling water is suddenly added, the cylinder block and cylinder head will be overcooled and shortened, which will also cause cracks. 4. The generator set has been working for a long time, and the temperature inside the machine is high. Immediately after parking, Draining high-temperature water will cause high-temperature parts to suddenly encounter cold air and crack. 5. Use decompression shutdown to cause the high-temperature cylinder head to suddenly encounter cold air and cause cracks. To prevent various types of cylinder blocks and cylinder heads from cracking, the following methods are available: 1. Before starting the diesel engine, the water tank should be added

Treatment methods for oil, water and air leakage in diesel generator sets: 1. Add pad to cure leakage. If there is oil leakage at the anti-leak gasket of the diesel oil pipe joint, you can add a layer of thin plastic with double-sided smoothness on both sides of the anti-leak gasket. Pad, tighten firmly to prevent leakage. 2. Leakage treatment method with paint flake liquid. If there is leakage at the seams of diesel engine oil tanks, water tanks, crankcases, etc., you can soak the paint flakes in alcohol and apply paint flake liquid to the clean seams to cure the leakage. However, paint chips are expensive and are generally used only in emergencies. 3. Use oil to cure leakage. When the paper pads in the oil pan, cylinder head, gear chamber cover, crankcase back cover, etc. of the diesel engine leak, as long as the paper pads are intact and the joint surfaces are clean, you can apply smear on both sides of the paper pads. A layer of butter and tightening the bolts will prevent leaks. If a new paper pad is used, soak the new paper pad in diesel oil for 10 minutes before installation, then take it out and wipe it clean, apply a layer of butter on the joint surface and then install it. 4. Liquid sealant leakage treatment method for diesel engines

1. Fault phenomenon: The starter motor transmission gear cannot enter mesh. Reasons for the fault: 1. The starter motor relay does not work. ① The start button is damaged or has poor contact. ②The transfer switch contacts are burned out. ③Insufficient voltage (the battery is short of power, the circuit system has poor contact or leakage). Solution: ①Repair or replace the start button. ② Disassemble and clean the contacts. ③Check the electrical circuit and battery. 2. The starter motor transmission gear and the diesel engine flywheel ring gear cannot mesh. ① One side of the gear is heavily worn or fluffed. ②The center lines of the starter motor gear and the flywheel ring gear are not parallel. ③The gap between the end face of the starter motor gear and the end face of the flywheel ring gear is too large or stuck. ④The lever that starts the motor is decoupled. Solution: ①Inspect the gear. ② Reinstall, no parallelism occurs. ③The gap should be within the range of (2.5~5) mm. If there is no requirement, add or remove gaskets.

After summarizing years of unit experience, generator manufacturers have also summarized some reliable methods for estimating the price of second-hand diesel generator sets. The following diesel generator manufacturers will share this method with everyone. The method can adopt the method of first asking, second looking, and third testing, with testing as the main method. First question: It is to ask about the purchase time, purpose and reason for sale of the diesel generator set, the repair status and which main parts have been replaced, and what problems there are in use, etc., so as to have a more comprehensive understanding of the machine. The second inspection is to first check whether the model is an obsolete model, then check the appearance of the diesel generator set to see whether it is new or old, and finally check whether the parts are complete and whether there is any damage. Third test: Test the machine. The specific steps are: 1. Shake the flywheel up and down. If there is no sound or obvious shaking, it means that the gap between the crankshaft main journal and the bearing bush is not large; turn the flywheel. If there is no clicking sound, it means that the crankshaft connecting rod shaft The wear between the neck and the connecting rod shoe is not serious. 2

When the battery of the diesel generator set has not been used for a long time, it must be properly charged before use to ensure the normal capacity of the battery. (The actual capacity of the battery can be detected through a hydrometer) Normal operation and charging will cause some water in the battery to evaporate, which requires frequent refilling of the battery. Before refilling, first clean the dirt around the filling port to prevent it from falling into the battery compartment, and then remove the filling port. Open and add appropriate amount Do not overfill the distilled or purified water (based on the scale on the battery plate). Otherwise, when the battery is discharging/charging, the electrolyte inside the diesel engine will gush out from the overflow hole of the filling port, causing damage to the surroundings. Corrosion damage to objects and environment. Avoid using the battery to start the unit at low temperatures. The battery capacity will not be output normally in low temperature environments, and long-term discharge may cause battery failure (cracking or explosion). The batteries of the standby generator set should be maintained and charged regularly and can be equipped with a float charger. diesel fuel

The manufacturer believes that this problem may be caused by damage to the fuse or rectifier diode. When the fuse is blown, the charger's power indicator light does not light up; after the rectifier diode is damaged, the charger's power indicator light turns on, but there is no DC output. 1. The charger transformer is burned out. 2. The diode on the charger is burned out. 3. The charging ammeter of the charger is damaged. 4. The fuse of the charger is burned out. The troubleshooting method is: disconnect the connection line between the charger and the battery, use a multimeter with a DC voltage range (50V) to test the voltage between the two output terminals of the charger. Note that the red test lead is connected to the positive pole of the charger, and the black test lead is connected to the negative pole. No voltage output was found. Remove the charger casing and check the charging fuse. It is found that the 60A fuse is burned out. After replacement, the charger resumes normal charging and the fault is eliminated.

When a diesel generator set is shut down, it is mostly because the unit has been in a static state for a long time. The various materials of the unit itself will undergo complex chemical and physical changes with the oil, cooling water, diesel, air, etc. This is mainly manifested in two aspects, which are summarized as follows: : The filtration capacity of the filter decreases. The filter plays a role in filtering diesel, engine oil or water to prevent impurities from entering the body. Oil dirt and impurities are also inevitable in diesel, so during the operation of the unit, the filter plays a role. important role, but at the same time these oils or impurities are also deposited in On the filter wall, the filtration capacity of the filter will be reduced, and there will be too much sedimentation, and the oil circuit will not be smooth. In this way, when the oil machine is running under load, it will go into shock due to the inability to supply oil (like a person lacking oxygen). Therefore, during normal use of the generator set Among them, the editor of the diesel generator public platform recommends: 1. Every 500 for commonly used units Replace the third filter every hour; 2. Replace the third filter of the backup unit every two years. Cooling system

When purchasing diesel generator sets, many users are obsessed with power. Some unscrupulous merchants on the market will take advantage of people's lack of understanding of power to set up purchasing traps, causing people to make wrong judgments when purchasing. Today, Haixing Power, a professional manufacturer of diesel generator sets, will provide you with a detailed analysis of the knowledge related to the power of diesel generator sets. Engine power calibration is based on mechanical strength, thermal load strength, and fatigue life. The same generator set can be calibrated to different powers according to the load rate and the length of use. GB2820-2009 is equivalent to the international standard ISO8528, which is divided into four types of power according to usage requirements: 1. ESP, emergency backup power 2. LTP, limited time operating power 3. PRP, basic power 4. COP, continuous power 1. Emergency backup power ( ESP) Emergency standby power is defined as: under agreed operating conditions and in accordance with the maintenance intervals specified by the manufacturer and