Diesel Generator Tech

The fuel filter of diesel engine can filter out the harmful impurities and moisture in the fuel system, protect the normal work of the engine, reduce wear and tear, avoid clogging and improve diesel engine life. Here, we are willing to share the basic working principle of diesel engine fuel filter. Basic Working Principle of Diesel Fuel Filter The purpose of any diesel fuel filter is to remove foreign particles as well as water. The use of a suitable filtration system on diesel engines is a must to avoid damage to closely fitted injection pump and injector components.  Filter's ability varies between the type and manufacturer. On diesel engines primary and secondary filters are used. The primary filter is capable of removing dirt particles down to 30 microns and the secondary filter between 10 to 12 microns. Secondary filters are available between 3 and 5 microns, which are used in severe service operations. The primary filter is usually located between the tank and the supply pump...

Alternators and regulators have been widely used in automobiles due to their simple structure, reliable operation, and convenient maintenance. When the following situations occur to the AC generator and regulator, in general, the following methods can be used for emergency maintenance of the   AC generator   and regulator. (1) When the electronic regulator or contact regulator does not match the grounding method of the AC generator and is urgently needed, the grounding method of the AC generator field winding can be changed to make the grounding method of the AC generator and regulator consistent. (2) When checking whether the AC generator generates electricity, if there is no test light or multimeter at the moment, a fuse or other fine wire from the car can be used to ground and scrape the AC generator B+terminal. If there is a spark, it can be basically confirmed that the AC generator generates electricity; If there is no response, it indicates that the AC generator is not g...

Cavitation failure of diesel generator set mainly refers to the diesel engine caused by cavitation damage. In fact, cavitation failure of diesel generator set has become an important factor affecting the service life and reliability of modern units. So how can our users avoid such malfunctions in their daily use? How did such a malfunction occur? The   diesel generator set manufacturer   will talk about relevant topics with you, hoping to help you. 1. Usage factors (1) The coolant temperature that is most prone to pitting corrosion is 40 ℃ -60 ℃, so it is important to maintain the coolant at a normal working temperature (80 ℃ -85 ℃) during use. (2) The cooling liquid specified by the diesel generator set manufacturer shall be added instead of hard water or cooling water (liquid) with more impurities. Experiments have shown that hard water containing salts and alkalis has a pitting rate several tens of times higher than clean soft water.  (3) Try to reduce the time for idl...

The front oil seal of the crankshaft of the Cummins diesel generator set has oil leakage fault, so why does the oil seal oil leakage fault occur when the   Cummins diesel generator set   has not been running for a long time? In this article, Dingbo Power Generation Equipment will provide users with a brief analysis, and the specific content is as follows: The front oil seal of the crankshaft of the Cummins diesel generator set leaks oil, which is an oil seal fault. It is impossible to prevent oil leakage. Although the oil leakage rate is not high among the multiple oil seals of the Cummins diesel generator set engine, it is also very cheap, but there are many replacement and disassembly parts, and the labor cost is high, which is a typical minor ailment. So, the reasons for its failure have been analyzed by engineers, but there are only three points. (1) The aging oil seal of Cummins diesel generator set engine can only be a rubber product in Cummins diesel generator set engin...

In the AC circuit of a silent generator set, a pure resistance circuit where the current and voltage in the load are in phase and can cancel each other out. The method of paralleling capacitors on the inductive load of a silent generator set can compensate for the reactive power of the inductive load by the reactive power of the capacitors, thereby reducing or even eliminating the original energy exchange between the inductive load of the silent generator set and the power source. Most of the loads in the power system are inductive, so the total current will lag the voltage by an angle, and the   silent generator se t's parallel capacitors will be connected in parallel with the load. The current of the capacitor will offset a portion of the inductance current, thereby reducing the total current and increasing the power factor. Insufficient cooling water in a silent generator set can reduce its cooling effect. Silent generator sets overheat due to ineffective cooling, and high oil t...

Each generator brand has its own oil mist protection system. Its main protection element is the oil mist detector, which can timely detect whether the generator has oil mist formed in the generator crankcase due to excessive air leakage and other faults caused by bearing overheating or piston ring damage, so as to monitor whether the main operating components of the generator, crankshaft and cylinder, work normally. During the operation of the   generator , it continuously extracts the oil and gas in the crankcase through the sampling pipeline system and sends them to a sensitive and accurate concentration measuring device. The photoelectric diode senses the light intensity generated by infrared radiation and converts the generator's light intensity signal into an electrical signal to be sent to the electronic identification device. If the gas in the generator crankcase contains oil mist, the opacity of the measurement channel of the concentration measurement device will increase. ...

Today we are talking about the battery of high-power giesel generator. Do users who often use high-power diesel generator to generate electricity have the habit of maintaining the battery? So how should I maintain it? When it comes to batteries, the first thing you think of is the batteries of electric vehicles. With the powerful technology, electric cars are also very popular. It should be noted that batteries and batteries are not the same thing. Devices that can store and discharge repeatedly can be called batteries, such as Lead–acid battery, lithium batteries, and so on. Maintenance skills of high-power  diesel generator  battery: Firstly, wipe. Firstly, we need to use a slightly damp cloth to scrub the exterior of the battery (long-term use can cause dust and oil stains to adhere), and clean the battery panel, pile head, and other debris that may cause leakage. Frequently scrubbing the battery in this way will prevent the pile head of the battery from accumulating white ...

After starting the Volvo generator set, the speed should be slowly increased. After checking and confirming that everything is in good condition, no-load operation from low speed to rated speed can be carried out. When the Volvo generator set is running at no load, it is important to check the oil pressure of the Volvo generator set and identify the situation before starting. If everything is normal, it can be put into normal operation. The operator should closely monitor the changes in the instruments on the control screen to see if they are within the permitted range and make corresponding adjustments. During operation, operators should maintain a safe distance from live equipment and wear labor protective equipment. The switching operation should pay attention to the sequence. When the Volvo generator unit stops normally, it should first unload some of the load, then turn off the main switch, and finally turn off the diesel engine of the  Volvo generator set . It is not allowed ...

During the operation of Cummins diesel generator, there must be some dirt. How to remove those dirt? In this article, Starlight Power Generation Equipment Co., Ltd. will briefly introduce some methods for   Cummins diesel generator   to remove dirt. 1. Oil washing method is often used to remove oil stains General parts are cleaned with diesel and dried with compressed air after cleaning. Detailed parts can be cleaned with diesel or petroleum. But after cleaning with diesel, if not repaired or assembled quickly, the parts should be soaked in diesel again to prevent rusting. 2. For parts with high oil stains, chemical cleaning can be used when equipment conditions permit. The parts can be placed in an alkaline solution, heated to 70-90 ℃, soaked for 10-15 minutes, removed, and washed clean with clean water (preferably hot water), and then dried with compressed air. In order to prevent corrosion of non-ferrous metal parts, the formula of the solution should be diff...

The silent diesel generator set is no exception. The removal rate of bituminous coal, carbon dioxide, carbon monoxide, hydrocarbons, nitrogen oxides from the tail gas of the silent diesel generator set by the environmental protection silent diesel generator set can reach more than 95%. Even at the moment of starting, the light blocking soot particles can not be seen, and its emissions exceed the Euro III standard. It can be used in urban high-density residential living areas to meet the strict requirements of environmental protection departments on exhaust emissions and noise levels of   quiet diesel generator sets . High altitude emissions are eliminated, and the impact of smoke exhaust pipe of silent diesel generator set on the overall beauty of the building is eliminated. The removal rate of bituminous coal, carbon dioxide, carbon monoxide, hydrocarbons and nitrogen oxides in the tail gas of the silent diesel generator set is more than 95%. Even at the moment of starting the sil...

  With the development of economic construction and the progress of equipment technology, Volvo diesel generator has become a common or necessary mobile energy device for various temporary construction sites and location shooting in the film and television industry, providing convenient power supply for the work site. However, it is also an environmental pollution source with prominent noise impact of Volvo diesel generator. No matter from the requirements of sound environment protection or on-site recording effect in the film and television industry, it is necessary to effectively reduce the noise of Volvo diesel generator. Because  Volvo diesel generator  is limited by volume, weight, thermal performance and modification process, it is very difficult to control the noise of the whole vehicle. Under the premise of ensuring that the appearance and operation of the Volvo diesel generator meet the specifications of the traffic management department,...

  The reaming of valve seat of Cummins Diesel generator is applicable to soft valve seat, which is usually carried out with valve seat reamer. A pair of valve seat reamers generally have four angles: 15 °, 30 °, 45 °, and 75 ° (or 60 °). The 30 ° and 45 ° reamers are further divided into two types: coarse blade and fine blade. Generally, the coarse blade has a tooth shape and is used for preliminary reaming. When a certain degree of reaming is achieved, a fine blade reamer is used for precision machining. Before reaming, it should also be noted that because the valve seat is reamed based on the valve guide, if the valve guide needs to be replaced or reamed, it should be done before the valve seat is reamed. Otherwise, if the valve seat is first reamed before replacing or fitting the guide tube, it may cause the center of the seat and tube to shift, resulting in the valve not being able to fit with the seat. The general reaming process of  Cummins Diesel generator  is as f...

In a humid environment, the insulation performance of diesel generator set and electrical components will be reduced due to moisture, and metal parts will be corroded, which will cause accidents in serious cases. Therefore, careful maintenance must be carried out. In this article, Starlight Power will share the maintenance methods of two  diesel generator sets  in humid environment. (1) Frequently pay attention to the insulation performance of the electrical components and circuits of the unit. When there is a fault, the insulation monitoring indicator light will light up, and the cause should be carefully checked and eliminated. If it drops due to moisture, the motor winding needs to be baked to restore its insulation performance. Usually, external heating method or current passing method inside the coil are used to evaporate the moisture in the motor winding; Or start the unit and adopt a gradual loading method to gradually increase the current inside the motor and driv...

The quality of the brushes is poor, or the brands and types of brushes are different. Check the brand, type and quality of each brush of Volvo diesel generator set, and replace the brush of Volvo diesel generator set with the same high-quality brush. The connection between the brush and lead, lead and terminal of Volvo diesel generator set is loose, the contact resistance is large, and the load distribution ring between brushes is even. Check whether the brush of   Volvo diesel generator set   is in contact with the copper pin, whether the screw in the lead circuit is tightened and whether the contact is good. The brush pressure is uneven. Check and adjust the brush pressure of Volvo diesel generator set. Pay attention to make the brush pressure of Volvo diesel generator set uniform, and the difference is not more than 10%. The brush is poorly ground and has a small contact area. The brush should be reground or Volvo diesel generator set should be operated under load. The surf...