The method of high-rise building design process?

1 Suggestions and measures for optimization of engineering drainage design process

Design content of indoor domestic drainage system 1. 1 The indoor domestic drainage of this building adopts the way of sewage and wastewater confluence, and the condensed water of air conditioning is collected for cooling tower drainage. Its design is divided into four parts: underground garage, 1 ~ 3 floor shop, 4 ~ 8 floor hotel and 9 ~ 20 floor residence. Among them, the basement and shops on 1 ~ 3 floors adopt gravity flow drainage system, and drainage risers are set in the tube wells. In addition to the first floor, submersible sewage pump is also used for pressurized drainage. For hotels with 4-8 floors and houses with 9-20 floors, gravity flow drainage system combined with drainage technology of falling plate on the same floor, and drainage risers are reserved at four positions of the core pipe, which can fully meet the drainage requirements of increasing toilets and kitchens on the same floor. Finally, a combined drainage pipe is set on the top floor, which is directly connected to the inside of the drainage well.

1.2 optimized design content of drainage system On the basis of the above-mentioned indoor and outdoor drainage system design, the design process of the system can be further optimized, and the green drainage design concept can be integrated by canceling septic tanks, adopting drainage technology on the same floor, adopting sewage lifting equipment, adopting automatic oil scraper and oil separator, and collecting and recycling air-conditioning condensate. 1) Cancel the septic tank. In the area where the case project is located, the past fecal sewage was directly discharged into the river, which caused great pollution to the water body. In order to reduce the pollution of the river, a septic tank was set up after obtaining evidence from the sanitation department to divert the sewage and wastewater in the building. However, with the establishment of large sewage treatment plants, the sewage and drainage diversion mechanism of the project has been continuously improved, and wastewater and sewage can be discharged separately without setting septic tanks. Therefore, the septic tank can be cancelled in this building, and the sewage can be directly intercepted by the grid well at the end of the water quality testing well and directly discharged to the sewage treatment plant for centralized treatment. On the one hand, the cancellation of the septic tank can save the area of 300m2 septic tank, on the other hand, it can effectively avoid the environmental pollution problem when the manure cleaner cleans the septic tank.

2) The drainage technology in the same layer is adopted. On the one hand, it is the floor-laying technology, which is suitable for the drainage of public toilets in shops on 1 ~ 3 floors. By laying drainage pipes in the caisson and setting floor drains in the falling plate of the structure, this technology requires that the inner side of the partition wall is flush with the side wall, and a lining wall is set behind the sanitary ware in the bathroom. On the other hand, it is the technology of underground laying along the wall, which is suitable for the 4 ~ 20 floors of this project, that is, the drainage branch pipe along the wall is connected with the risers of each floor, so that the pipeline and water tank are hidden behind the fake wall during indoor decoration, effectively avoiding the mutual influence of the drainage noise upstairs and downstairs, and there is no need for cross-layer treatment when the pipeline leaks.

3) Adopt sewage lifting device. In this case project, the vacuum sewage central lifting system can be considered, which uses air as the transmission medium and can directly extract sewage from the pipeline with negative pressure of 0.06MPa. This system can effectively solve the problem of swamp slope of drainage, will not pollute groundwater, and has high safety self-inspection and overall tightness. 4) Adopt automatic oil scraper and oil separator. In hotels with 4-8 floors, the kitchen drainage contains a lot of grease. According to the relevant regulations on sewage discharge, these sewage needs to be treated before being discharged into the municipal sewage pipeline. However, the traditional grease trap used in this project cannot effectively separate oil and water. For example, it is difficult to remove the floating oil attached to the wall of the oil separation tank, and it is easy to produce odor and block the line after a long time.

Therefore, when designing the drainage system of the project, we can consider adopting a fully automatic oil scraper, installing a mechanical grille at the water inlet in the oil separator to filter the coarse particles and oil residues in the oil and water, and then introducing the sewage into the air flotation area through the flap. At this time, you can start the oil scraper to scrape the floating oil into the oil pan, and cooperate with the exhaust pipeline to discharge waste water and odor at the same time. On the basis of the traditional oil separation tank, the invention adds the functions of air flotation, automatic oil scraping and mechanical grating, which greatly improves the oil-water separation level.

5) Collection and reuse of air conditioning condensate. The circulating condensed water of air conditioner may invade bacteria because it is directly exposed to the air. Therefore, the washed wastewater can be directly utilized through the treatment of cooling water, and then the condensed water of each layer is collected through the collection pipeline and concentrated in the cooling tower replenishment tank of this layer. This can not only reduce the tap water supply of air conditioners, but also control the discharge of wastewater. Through the collection and reuse of air conditioning condensate, the case project can save water supply 1 10,000 m3 every year, with remarkable economic benefits.

6) Choose a suitable drainage system. First, pipeline installation and maintenance management. This project involves a large number of pipelines. Because of the limited space of the pipeline well, it is necessary to adopt the sewage and wastewater diversion system and set up a special ventilation riser. Secondly, the hydraulic conditions of the system, focusing on solving the problem of cross-branch pipe blockage, improve the hydraulic conditions of the system through the combined system. Finally, the economic comparison of the optimized system design is made to judge the feasibility of system design optimization.

2 conclusion

Through research, this paper basically defines the optimization method of the drainage system design process of high-rise buildings, but the specific design details still need to be further supplemented and improved in combination with the actual engineering situation, so as to improve the applicability of the drainage system design and improve the efficiency level of the drainage system. (This article is from Shanxi Architecture Magazine. Please have a look at the brief introduction of Shanxi architecture. )

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