mac cosmetics wholesale Guixi Power Plant expansio

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Guixi Power Plant expansion project selection analysis of the four pipe pipe


Quality, the competent specifications OD727.96 × 21.03, branch specifications OD632.97 × 17.98. Comparison shows that the main channel wall thinning of 10mm,; branch pipe wall thinning of 6.8mm, little change in total weight of pipe, pipe weight ratio P91/P22 = 1/1.39,ghd planchas, much greater than the price ratio, therefore still recommend the use of P22 pipe. 6 cold reheat steam pipe section of the pipeline optimization of the former Ministry authorities seamless steel pipe, the same can meet the technical requirements. Cold section of pipe joints in charge has the use of A672B70CL32 812.8 × 18.26, replace A106B seamless steel pipe 812.8 × 21. A seam welded steel much cheaper than the A106B seamless steel pipe, seamless steel tube for the 1 / 3. A seam welded steel pipe wall thickness deviation is less than seamless steel tubes, seamless steel pipe as much as its quality. Therefore, the cold reheater section of pipe is used A672B70CL32 electric welding economy. 7 high-pressure water pipe water pipe pipe optimization of high-pressure pipe is commonly used St45.8/11I, the engineering optimization of 15NiCuMoNb5. Head Road, specifications change from the contradictory 06.4 × 55 355.6 × 26, branch pipe specifications change from the 298.6 × 36 4.6 occurred during the guided traction rope,love bracelet cartier, the traction rope or wire hopping, running board or flip balance weight when resting on the upper wire,tory burch outlet, must stop processing. 4.7 guide rope off by trees or other objects before the hang,mac cosmetics wholesale, the process should stop line (rope) on the outside with white coir rope pull the guide rope. 4.8 pre-tilt angle tower rising at the pressure of the blocks and tackle must be based hand care line. 4.9 Other not mentioned in the construction safety requirements should comply with 5 Conclusion 5.1 wide by three projects, a large cross-section wire construction technology and equipment to get the test of practice, the equipment to meet the construction requirements of the conditions, 5.2 great tension machine base beam and tension wheel of the wheel groove distance is not enough, when the tension from the drastic change hours, the wire is easy to wear with the beam phase. 5.3 sets pressure over the protection of steel in the construction process, only the two sets of sawn rubber, the pressure to take over in order to set into. 5.4 Existing traction rope reel is based, I, 18 of the rope design. In the construction are not pulling the traction rope 20 in place while the line has been set disk full situation, can be used manually put exhibition guide rope 615, with, I, 15, guided traction rope 28 directly to the traction rope. This is to solve the cable trays and trays do not enter the problem, but also can reduce the time traction and improve efficiency. ... ● ... · ● ... ● ... ● ... · ● ... ● ... ● ... · ● ... ● ... ● ... · ● ... ● ... ● ... ● ... ● ... ● ... ● ... ● ... ● ... ● × 20. Hunan Yiyang Power Plant Phase I, Shaanxi Pucheng Power Plant, two projects are the use of this steel. St45.8/11I and 15NiCuMoNb5 the main parameters in Table 3 Table 3St45.8 / Ⅲ and 15NiCuMoNb5 major mechanical properties of the table Crh2YMPa. 'duo MPaEt, z. ~ v. / kl' q relatively high copper content, when used high-pressure water pipe, it is desirable to control the system by a copper water PH value, it is not higher than 9.3. 8 Summary through the technical and economic comparison Guixi Power Plant Expansion Project P91 main steam pipe with pipe, hot reheat steam pipe sections use the term [1] DL5000-2000, IS]. power plant design regulations. [2] Electric Power Planning and Design. thermal power transmission substation engineering design control limit indicators (2002 level) [S]. Beijing: China Electric Power Press Press, 2003,4.
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