1. Implementation standards and benchmarks:
1. Puyang Yuchai series diesel generating sets are strictly designed, manufactured and tested according to the standards.
1) GB/T 2820-2009: reciprocating internal combustion engine driven AC generating set (equivalent to ISO 8528)
2) YD/T 502: diesel generator set for communication
3) basic technical requirements for GB 755: rotary motors (equivalent to IEC 60034-1)
4) GB/T 12786-2006 "general technical conditions for automatic internal combustion engine power station"
5) general specification for GB/T 2920 "250 to 3200kW diesel generating set"
6) GB/T 2819-1995 "general specification for mobile power station"
7) JB/T 10303-2001 "technical specification for diesel generator set at power frequency"
8) JB/T 6755-1993 "diesel generator set switchgear"
2. Reference conditions
1) in order to determine the rated power of generating units, the following standard reference conditions should be adopted:
The total atmospheric pressure, Pr=100kPa;
Environmental air temperature, Tr=298K (t=25 C);
Relative humidity, =30%.
2) the crew should be able to work reliably under the following conditions:
The altitude is not more than 2500 meters.
The ambient temperature is 0--40 C.
The relative humidity of the air is not more than 90%.
3) when the operating conditions of the field are different from the above standard reference conditions, the power of the generator set should be corrected.
Two. Detailed contents of the mobile station series
(1) a summary of a series of products of a mobile station
The design of mobile diesel generating set is innovative, high maneuverability, low center of gravity, safe braking, excellent manufacturing and beautiful appearance. The trailer frame is welded into a frame structure with slotting beam, which is reasonable in selection, high in strength and good in rigidity; at the same time it is equipped with a spring suspension structure of steel plate. The trailer adopts a height adjustable pin type traction frame, which is suitable for all kinds of high altitude traction vehicles; the circular steel pipe is used to weld the straight axle, with compact structure, safety and reliability; four corners of frame. A mechanical support device is equipped with an inertial vehicle brake, a parking brake and an emergency brake to ensure the safety of the unit under various conditions. The front end of the frame is equipped with a support wheel, with the function of bearing vertical load of the unit and the guiding function while the vehicle is equipped with steering and brake lights and also equipped with a taillight mark. Quasi plugs. The tires are the national standard type.
(two) the series structure and function of the mobile station:
The mobile station series has many kinds of structure and function, such as hand push, three wheel, four wheel, automobile power station, trailer power station, mobile low noise power station, mobile container power station, electric power engineering car and so on. The system is designed and manufactured by ourselves with reference to many foreign mobile power station structures. It has good operational performance and safety performance. There are the following configuration options:
1, traction: using movable hook, 360 degree turntable, flexible steering, easy operation.
2, brake: at the same time, it has reliable pneumatic brake interface and manual brake system to ensure safety in running.
3, support: in order to ensure the stability of the power car operation, it is equipped with 4R mechanical or hydraulic support device.
4, doors and windows: there is a ventilation window at the front, and a rear open door. There are doors on both sides for operators to get in and out.
5, car size: the size of the car is determined according to the specifications. The operator can walk around, so that it can be easily maintained and maintained.
6, appearance: the paint uses the high molecular polyurethane outdoor paint, the color can be determined by the user, and the exhaust pipe adopts the upper exhaust or the lower exhaust to ensure the beauty. The text and decoration on the outside of the car can be made according to user's requirements.
Cable 7, cable capstan: you can choose external or built-in installation mode.
(three) basic configuration of a series of mobile power stations
1, traction: front steel traction, optional direct connection, 360 degree turntable, trailer can add bumper brake, improve the safety of mobile emergency braking.
2, brake: pneumatic brake interface and hand-held brake mobile collision brake system to ensure safety in running.
3, support: equipped with mechanical or hydraulic support devices to ensure the stability of mobile power station operation.
4, doors and windows: ventilation windows and doors, air inlet labyrinth duct, and wind blinds for operators to operate and maintain.
5, lighting: there is a ceiling mounted explosion-proof lamp in the box, which is convenient for the staff to operate.
6, appearance: exhaust pipe is used for upper or lower exhaust, outer coating material adopts salt spray corrosion paint, color warning sign.
7, external: external fuel tank, brake indicator light and so on.
8. Grounding device: a 5 meter long grounding copper wire and 1 meter galvanized angle iron.
9, tires: according to the total weight of the unit (including oil and water) and the box, calculate the bearing capacity of the tire and select the national standard tires.
Three. The detailed content of the mute power station series
(1) a summary of the series of mute power stations
The mute diesel generator set is well designed with the introduction of foreign low-noise generator and engine technology. The design concept is advanced and the varieties are complete. Besides the functions of a series of diesel generating sets, the products have the following features: low noise, compact structure and small space; the box is all detachable structure, the box is made of 2mm steel plate, the surface is coated with high performance outdoor antirust paint, and it has the function of noise reduction and rain proof in the same time; It adopts multi-layer barrier impedance mismatched noise elimination structure and built-in large impedance muffler. The box structure is designed reasonably, with a large capacity tank inside the box, and there are two overhaul doors at the same time, in order to repair the failure of the unit. At the same time, there is an observation window and an emergency shutdown button on the box, so as to observe the operation of the unit and stop the unit at the fastest speed when the unit appears emergency situation. It was damaged.
(two) the characteristics of the mute power station series:
1. the noise standard is in line with ISO3744, reaching 7 meters less than 75Db.
2. the interior is made of special silencer and built-in muffler to make the structure compact. Good ventilation and radiation protection structure.
3. the specially treated box is fully adapted to all-weather requirements.
4. the reasonable location of the box to set up the observation window to facilitate observation and operation.
5. the special set of shock absorber makes the unit run quiet and stable.
The 6. large capacity base tank saves the process of installation and connection.
(three) the noise reduction facilities of the mute power station
1. Vibration reduction facilities. High performance shock absorbers are used between diesel engines and generators and bridges to reduce the noise generated by vibration.
2, sound insulation cover, using four to five layers of sound absorption material sound insulation cover, sound absorption and sound insulation, the effect is obvious.
3, the air intake silencer, the three layer sound absorbing material's Labyrinth intake air silencer, not only ensures that the fresh air is enough to enter, but also effectively closed the noise.
4, the exhaust air silencer and the labyrinth exhaust silencer with three layers of sound absorbing material not only ensure the smooth ventilation, but also effectively close the noise transmission.
5, exhaust muffler, impedance composite muffler, greatly reduces the exhaust emission time noise.
6, the power cable connection adopts a fixed junction box structure, which is directly connected outside the box.
7, fire fighting: two sets of fire extinguishers can be equipped with vehicles.
In addition, the structure of the soundproof hood is similar to that of the sound insulation hood. The window adopts double glazing, and the door and window and the sound insulation cover are tightly sealed to seal the noise to the maximum extent.
Four, Trailer / hyper quiet unit advantage:
1. The diesel engine used in Trailer / mute box is a famous brand product at home and abroad, and the generator set of pure copper generator is installed in the box.
2. The box has beautiful appearance and reasonable structure. It is made of not less than 2mm cold rolled steel sheet.
3. Adopt the fully enclosed box, and adopt EPDM type keel sealing strip to seal the door. It has good sealing performance, rain proof, snow proof and dustproof, and can work in harsh environment.
4, the ventilation inside the box is smooth, the temperature will not be too high, ensuring the rated power operation of the unit and the overload capacity of 1 hours and 110%.
5, the PUR type flame retardant sound absorption cotton is used inside the box, which can effectively reduce the noise from all parts of the unit and fully carry out the noise isolation treatment, so that the unit can effectively reduce the noise in the operation.
6. The muffler uses a high resistance muffler to effectively reduce the noise of the exhaust vent of the unit. The exhaust pipe is installed on the top of the box through a flexible cushion cover, and is used as a sound insulation and heat insulation treatment.
7. Maneuverability is good: designers in line with the people-oriented guiding ideology, fully considered the operator's convenience and safety to the operation of the oil machine.
8, control box system: using the well-known intelligent controller at home and abroad, can carry out remote control, group control, telemetry, auto and auto (as many as 32 units), supporting a variety of automatic fault protection functions. The control panel and the emergency stop switch are installed in the air inlet of the box, and when the unit is abnormal, it is easy to stop.
Five. Electrical performance of Trailer / mute box generator set:
Strict implementation of the national standard GB/T 2820 - 2009 in the generator set performance level G3 operation limit requirements:
L voltage tuning range (%): < < + 5;
L steady-state voltage deviation (%): < < 1;
L transient voltage deviation (%): < < + 20 ~ 15;
L voltage recovery time (S): less than 4;
L frequency drop (%): less than 3;
L steady frequency band (%): less than 0.5;
L transient frequency deviation (%): < < + 10 - 7;
L frequency recovery time (S): less than 3;
L voltage tuning change rate%/s:0.2-1
L frequency tuning rate%/s:0.2-1
L voltage modulation (%): less than 0.3;
Under the calibration mode, the yumchai generator, when the rated voltage is no-load, is added to the three phase symmetrical load of the equivalent power of 25% (the function factor cos = 0.8 lag), and then the resistance load of 25% power rating is added to the permanent phase, and it can work for a long time, at this time, the Zui large value (minimum) of the three-phase line voltage and the minimum value (minimum value) The difference between the average value of the three-phase line voltage is not more than 5% of the three phase line voltage average.
address： Dalian Pulandian Feng Rong Industrial Park