The noise of the gasoline generator set has broad-band spectrum characteristics, and the silencer equipment must be able to withstand high air flow speeds, high temperatures and pressures, and is not afraid of water and humidity. As the temperature increases, the performance of the muffler changes. According to this situation, a composite silencer with micro-perforated plates is often used in the treatment. Double-layer micro-perforated plate muffler is processed from 0.5-1mm thin steel plate with hole diameter 0.5-1mm and perforation rate 1%-3 %. It has a good absorption effect on mid and high frequencies. noise. When there are several layers, the thickness of the cavity depends on the absorption frequency band. When the low frequency is 125-250 Hz, the cavity thickness is 150-220 mm. When the average frequency is 500 to 1000 Hz, the thickness ofthe cavity is 80 to 120 mm. When the high frequency is 2000~4000Hz, the cavity is 30~50mm. In order to avoid the propagation of sound waves in the cavity of the micro-perforated plate along the entire length of the pipe, for silencers that require a higher sound attenuation capacity. , a transverse deflector is added every 0.5 m in length. The cross section of the double-layer micro-perforated plate tube muffler is circular.
Why do gasoline generators often turn off automatically during operation?
Some have fire suppression covers, and some do not . It is best to install a fire extinguishing cover.
Six major points to pay attention to when installing small diesel generators are as follows:
1. The installation site must be well ventilated, the end of the generator must have sufficient air inlets.ir, and the end of the diesel engine must have good air outlets. The air outlet area should be more than 1.5 times larger than the water tank area.
2. The area around the installation site should be kept clean, and objects that may generate corrosive gases and vapors such as acids and alkalis should be avoided nearby. Fire extinguishing devices should be equipped wherever possible.
3. When used indoors, the smoke exhaust pipe must be directed outside. The diameter of the pipe must be ≥ the diameter of the silencer smoke outlet pipe. the pipe should not exceed 3 to ensure that the exhaust pipe is To ensure smooth flow of smoke, the pipe should be tilted downward 5-10 degrees to avoid rainwater injection if the exhaust pipe is installed vertically upwards, a rain cover must be installedwent; .
4. When the foundation is concrete, flatness should be measured with a level ruler during installation to ensure the unit is secured to a level foundation. There must be special anti-vibration pads or anchor bolts between the unit and the foundation.
5. The unit shell must have reliable protective earthing. For generators that require a neutral point to be directly grounded, neutral grounding should be done by professionals and equipped with lightning protection devices. to use commercial power supply. The grounding device leads the neutral point to be directly grounded.
6. The two-way switch between generator and mains must be very reliable to prevent reverse power transmission. The reliability of the two-way switch wiring must be inspected and approved by the departmentelectrical supply room.
The small gas generator makes a lot of noise, so I want to add a car muffler, but I don't know if that will help.
The gasoline generator often stalls automatically during operation. There are several reasons. Firstly, there is no oil, secondly, the oil circuit is blocked, thirdly, the body temperature is too high and fourthly. , the load is too heavy. These situations will cause the gasoline generator to automatically stall during operation.
If the machine life is not very longIf it is not old enough, it is recommended to replace the spark plug and the carburetor. If it is certain that the spark plug is not the fault, it is recommended that the oil supply line is not slick and cleaned or replaced.
Detailed information:
1. Drain all gasoline from the fuel tank and carburetor;
2. crankcase
3. Add new engine oil to the upper limit of the oil level on the oil dipstick
4. Close the choke and pull the starter handle to where resistance is felt;
5. Wipe the device clean and cover it with cardboard or a plastic cover to prevent dust.
Yes. That works.
The purchase and use of generators must comply with the technical requirements indicated on the nameplate, such as voltage, power and rated output current. Carefully observe the operating status lights and oil pressure on the generator, whether the water temperature is normal and whether there are any abnormal noises coming from the unit. Before the shutdown,all loads on the generator must be discharged, the diesel generator speed must be discharged. reduced to idle, and finally the generator must be stopped.
Notes:
(1) “Vehicle” refers to motor vehicles and non-motorized vehicles.
(2) “Motor vehicle” means a wheeled vehicle driven or towed by a motorized device and driven on the road for the purpose of riding in it or for transporting objects and carrying out transport operations. special engineering.
(3) “Non-motorized vehicles” means vehicles driven by human or animal power and driven on the road, as well as vehicles driven by power units but having a maximum designed speed, the mass of the empty vehicle and overall dimensions comply with current regulations. Motorized wheelchairs, electric bicycles and other means of transport for people with disabilities.