tory burch Grange Power Station No.1 unit and auxi

Grange Power Station No.1 unit and auxiliary equipment defects comprehensive

. Make font seal ring into the top tight, and lack of outward expansion. Rotor blades during the operation frequency operation. Lead to oil spills. Thus creating a vicious cycle. The amount of up to 100 liters of oil days. Treatment measures: 1j new font change seal 2) processing the burr blades and defect flange shaft 3) Remove the top tight loop, in the cylindrical side of the processing of a 3mm wide and 4mm deep semicircle trough, back in the groove when installed mn plus one diameter of the thickness of the O-ring g95mm to address the top tight outer ring uneven gap adjustment problems. d) back to the ring when installed new fonts. Carefully detailed, the only oil seal edges with 1 [nPi1 feeler slowly all the pressure into, all in place and then on the plate, then top tight ring for adjustment of the same amount of compression. Were 3.3 to prevent the brake piston ring Shouli Bu processing unit overhaul, dismantling the brakes on the lower rack, the detection of ellipticity too. Will be a X, + Y direction A of the brake piston out demolition process. And the rounded handle. Back to the installation, the top rotor test so easily Yang water drainage pump 3.4 Analysis of transformation: from the layout of the situation shows that water pump Yang. Each pump water received by Jan 50 Jan 80 the total water pipes, the total exports in Jan tube pipe flow of water. As the highest point of Yang and export water height difference of 9.14m,[link widoczny dla zalogowanych], resulting in drainage pump in the starting formation of a vacuum within the pipe Yang. Young water pump has been tested and the highest point of the vacuum up to 400mmHg, and because Young is not exposed to the air pipes in exports. Can not be added after the pump stops the air, under vacuum, Jan pipe does not fall on the formation of broad backstop siphon, the water pump suction pipe and filling the water continues to discharge water to the tube, resulting in less irrigation water pump . Can not start to pump again, Sheung Shui. Based on the above analysis, the total Young decided to add a breathing tube on the pipe measures to make the water and the atmosphere Yang Yang turned to destroy the vacuum pipe. To the pump stopped. The purpose of the whereabouts of the check valve to ensure that does not occur siphon pump, water pump to keep water in the filled state. Run-time for the work of breathing tube: water pump has just started. Breathing tube out of water, followed by Xiangyang water qi transformation, not only performed well, but according to the case of mouth breathing tube to determine whether the Sheung Shui, and the water pump the size of the pump to run quickly to find fault 3.53 provides a convenient alternative for the reconstruction of the original pump solid analysis: Since 1983,[link widoczny dla zalogowanych], power input to run. Since the end of poor water quality, resulting in three spare for the water pump had to use before the relaxation (Figure 1) taken before the pool water through the valve 205, three water pump impeller directly into the pipeline is short, turn radical ( 90 degrees). Vacuum formed at the three links and thus formed at the water pump impeller cavitation, 【vibration from the pump, leading to destruction of water pump seals, packing at a major water leakage. Sheung Shui design pressure is less than 0.2MP. When l (or 2) technical water supply failure, the unit mainly the water pressure. Thereafter, 3 spare pump and piping for the transformation (transformation of the program shown in Figure 2). Transformation,[link widoczny dla zalogowanych], remove three links and increase the motor, the first end Jia reform Qingdeng l: Grange water also stops a unit and auxiliary equipment marrow depression comprehensive sets of 33 pumps the rule of reason from the wall (the distance Bong (originally 530crn,[link widoczny dla zalogowanych], modified 61OcnLJ After transformation, makes the increase of bend bend bend which do not form a vacuum,[link widoczny dla zalogowanych], does not produce cavitation at the impeller. Sheung Shui pressure to r the design requirements. At the same time to remove the tail of technology for water intake pump, well pump for the right to make 3 Move to increase air l. r overhaul work together to facilitate the maintenance staff. Figure 1 for the transformation of the former three standby pump in Figure 2 stand for the modified bearing pump 4 3 effect and experience of governance and transformation through overhauls. draw the following children point of experience : 1) the successful transformation of turbine shaft seal. fundamentally affect the unit to eliminate the safe operation of equipment problems, improve operational stability and reliability of the unit. 2) Install the font into the ring should be tight when the seal ring should be tight rather than loose attached leaf journal; install the top tight ring careful to check the underside of the top tight ring and the distance to meet the design requirements. This herringbone ring compression plate on the outside, the top tight ring to the top of the spring by tightening force even 3) for the vibration of the drainage system of pumps for many reasons. Cavitation induced vibration Wai Fu is also common. Therefore, when installation of pumps in the design to take into account the cavitation problem. Gentle suction pipe bend as much as possible, the number of elbows as little as possible, but as far as possible in the pump inlet elbow to set the site in general. After overhaul and transformation. 1 = Unit has safely operated for more than 850 days. Shaft seal device stanch stanch good runner leaves no oil leaking wheel, safe and reliable water supply and drainage system, brake system is operating normally, and achieved good results. (Editor: Gu Xi-yuan)

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