Before the unit is delivered to the factory, the test of the generator set includes: factory type inspection, acceptance inspection after completion and routine maintenance inspection
First, the genset factory type testing
1, check the indicator device 2, continuous operation test 3, check the start-up performance 4, the measurement voltage setting range 5, the steady-state voltage deviation measurement 6, measuring transient voltage deviation and voltage recovery time 7, measuring voltage unbalance 8, measuring frequency Down 9, measure the steady-state frequency band 10, measure (for rated frequency) the instantaneous frequency difference and frequency recovery time 11, check the hot and cold frequency changes 12, measure the line voltage waveform sine distortion rate 13, measure the phone harmonic factor (THF) 14. Measurement of line voltage deviation under asymmetrical load 15. Parallel operation experiment 16. Measurement of temperature rise 17. Measurement of mechanical vibration value 18, measurement of noise 19. Measurement of conducted interference 20. Measurement of radiated interference 21. Measurement of oil consumption Rate 22, measure the fuel consumption rate 23, check the sealing 24, check the ground 25, measure the insulation resistance 26, the electric strength test 27, check the phase sequence 28, check the automatic protection function 29, check the overload protection function 30, check the short circuit protection function 31, check the reverse power protection 32, the reliability of 33, check the appearance of quality 34, check the monitor then 35, check automatically maintain the operation 36, automatically start and load 37, 38 experimental automatic unloading stop, automatic replenishment check function 39, check automatic control function 40, wherein the electrical parameters of the transport experiments performed to simulate the load of the load test.
Second, after the completion of diesel generator acceptance
After the completion of the generator set project, the output rated power and carrying capacity can meet the design requirements, which will directly affect the project acceptance. Although some of the noise reduction equipment installed in the unit room reduces the environmental noise, it has some influence on the unit output power, It is impossible to detect how much the unit output power is lost, and the quality of the noise reduction works meets the contract requirements according to the original design and ensures that the unit reasonable loss power is much. How to extend the service life of the generator, so that the generator to maximize the energy, diesel generator installation is very important, the following is the installation precautions:
1, the installation site to be well ventilated, the generator side should have enough air inlet, diesel unit end should have a good outlet. Outlet area should be greater than 1.5 times the tank area above; poor air inlet or does not meet the requirements of the less air into the cylinder, which will result in inadequate fuel in the cylinder, resulting in carbon deposition, affecting the load capacity of diesel generating sets ; The same exhaust pipe does not meet the requirements of the engine room to reduce the oxygen content of the air can also cause insufficient fuel within the cylinder, resulting in carbon deposition, affecting the load capacity of diesel generating sets.
2, the installation should be kept clean around, to avoid placing in the vicinity can produce acidic, alkaline and other corrosive gases and steam items. Conditions should be configured fire extinguishing devices.
3, indoors, you must pass the exhaust pipe to the outside, the pipe diameter must be greater than or equal to the diameter of the smoke pipe, the elbow connected to the pipe should not exceed 3, in order to ensure the smoke cleared, and should be pipe Slanted downward 5-10 degrees, to avoid rainwater injection; if the exhaust pipe when the vertical installation, you must install a rain cover. In order to increase the output power of diesel generating sets, the average effective pressure of the generating units can only be increased by forcing more air into the cylinders to fully burn the fuel in the cylinders under the condition that the capacity and the quantity of the cylinders are constant. At present, the diesel generating units use turbo- Pressure generator, which is more stringent requirements on the exhaust of diesel generating units, once the exhaust gas is not smooth or exhaust gas speed does not meet the requirements of the air into the cylinder to reduce, it will cause the diesel generator with a load capacity decline.
4, the foundation of concrete, the installation of the horizontal scale to measure the level of degrees, the unit fixed on the basis of the level. Between the unit and the foundation should have a special shock pad or foot bolts.
5, the unit shell must have a reliable protection of the ground, the need for a neutral grounding directly to the generator, you must be conducted by professionals neutral ground, and configure the lightning protection device, the use of mains grounding device is prohibited neutral point Ground directly.
6, two-way switch generator and mains must be very reliable, to prevent power down. The reliability of the wiring of the bidirectional switch needs to be verified by the local power supply department.
7, starting battery wiring must be solid.
In summary, the installation of diesel generating units must be simulated load acceptance, mainly with the load test and electrical characteristics of the test, the original bidding can meet the requirements of the power level or whether to meet the capacity requirements of the original design, so you can do To my heart, to avoid the occurrence of security incidents.
Left-hand full-thread bolt
Left-handed full-thread bolts are mainly used in mines where rock formations such as coal mines are not hard enough. bolts are generally used together with anchoring agents to achieve end anchoring or full anchoring in mines.
ANTO left-handed full-thread bolt is made of high-strength HRB500 or HRB600, which can provide high load-bearing capacity to protect mine safety.
Compared with other bolts, it can be installed using ordinary foreign drilling rigs, which saves installation costs.
Anto left-handed full-threaded anchor rod, the threads are distributed throughout the rod body, increasing the moving length of the nut, if the anchor rod support is loose in the later stage, tighten the nut, and the anchor rod restores the support force.
Features (advantages) of Left-handed Full Thread Steel Bolt:
1. High strength, full-thread full-length equal strength, which is 40% higher than the load-bearing capacity of the same specification anchor rod;
2. Reasonable structure, large pre-tightening force, expand the use range of anchor rods, and can realize end anchors, lengthened anchors and full anchors;
3. It can automatically adjust the force direction, increase the binding force on the surrounding rock, and realize mechanized and fast installation;
4. It is used for high-strength support of large deformation roadways in high ground pressure mines, and can also be used for high-strength, permanent roadway support of various projects such as railways, hydropower, etc.
20mm Mining Rebar Bolt,20mm Rebar Bolt,20mm Threaded Rebar Bolt,20mm Rebar Rock Bolt
ANTO MINING EQUIPMENT CO.,LTD , https://www.antobolts.com