In the water supply and drainage design, often encounter water pump house located in the building or outside the building, set up a separate pump room or centralized pump room problem. Properly setting up a water pumping station can not only improve the quality of buildings, but also help developers save a lot of capital investment in equipment and future maintenance and management costs. The following set up a separate pump room and centralized pump room two situations to talk about the pump room should pay attention to some of the problems set: 1 separate pump room settings in the single building, the pump room is generally located in the bottom, which is The most economical way to set up, the pipeline is short, the overall impact is small. However, due to the quality of the pump varies greatly, pump room noise affect the quality of life of residents disputes and complaints more and more. To this end, Shanghai "Residential Design Standards" (DGJ08-20-2001) Article 6.1.7 states: the pump house should not be located in residential buildings. Although this provision fundamentally solved the problem of noise nuisance, but in the actual operation of the process still encountered some problems. (1) For example, commercial and residential buildings, the following layers are shopping malls, the above is a residential, building a separate pump room within the building, the noise has little effect on the house. Because the evening market closed, the noise of the pumping station after several layers of shopping malls on the impact of the above residential has been very small. In this case, it is still possible for the pump house to be located in the building. (2) Such as high-rise residential, life pump water pressure is very large, the pump room settings in three cases: First, the pump room is located on the ground alone, taking into account the maintenance and safety of the pipeline, the pump pipe is generally located in the trench; Second, the pump room is located under the ground, with the basement of the residential connectivity, but not opposite the house; Third, the pump room is located in the residential building, but life pump selection of stainless steel Submersible Pump in the pool, or the use of stainless steel silent pipe Pump. All three of the above-mentioned methods have effectively avoided the impact of noise on residential buildings. However, there are some shortcomings of the first method. That is, the pump house is set on the ground alone. This has a greater impact on the overall layout of the building. First of all, we should choose a special place to set up water pump room. Second, there should be enough pipe to set the pipe ditch. Again, it is also more important to increase investment. The second method, that is, the pump house is located under the ground and communicates with the basement of the house but not opposite the house. Compared with the first method, this method is similar to the first method. Because the basement is connected, the pump tube can be removed in the basement without the need for ditches, but underground pump room investment is larger than that of the ground pump room. In addition, due to the pump room protruding in the basement area together to the overall figure of the pipeline to bring some trouble. The third method, that is, the choice of life pump stainless steel submersible pumps on the pool, or use stainless steel silent pipe pump. This method radically improves the noise source. If the use of stainless steel submersible pumps on the pool, but also save the pump room area, which is the most economical way to set up a pump room. However, such a large one-time investment in the pump, if the use of stainless steel submersible pumps on the pool, in case of equipment maintenance, then the impact of a larger area. In addition, the third method also contravenes Article 6.1.7 of Shanghai Residential Design Standard (DGJ08-20-2001). It is suggested that the phrase "should not be" should be replaced by "not suitable" in the provisions of this article. The description of the provision adds noise standards to pump rooms located in residential buildings. 2 Centralized pump room settings In a multi-block building, if each building has a pump room, not only increased the amount of investment, and equipment maintenance and management need to invest a lot of manpower and material resources, it is not economical . In this case, it is generally considered to set centralized pumping station. For the setting of centralized pumping station, refer to the relevant provisions of Article 6.5.3 of "Code for Design of Civil Building Water Fire Extinguishing Systems" (DGJ08-94-2001): Pump Room water supply service radius should not be greater than 150m, pump room water pressure should not be greater than 0.45MPa. In the actual design, should be based on the different situations of each plots flexible use. (1) For example, a factory site plots, a number of multi-storey red line within the plant, multi-storey dormitory, multi-storey office buildings. In this case, it is more economical to adopt a centralized pumping station. Under the premise of meeting the radius of water supply service not more than 150m, a centralized pumping station can be set up in the appropriate position of the load center of the plant. Taking into account the plant generally covers a larger area, the use of single block outside the building centralized pump room is more reasonable. (2) For example, a multi-storey or small high-rise residential area, according to the developers of different development deadlines for real estate, combined with the height of the floor and the size of the reservoir to set up one or more centralized pump room. Due to the large number of residential area, so to pump room storage pond covers a relatively large area. For a residential area, to focus on pump room. It is more economical to locate in the lower level of a commercial or residential building or in an underground garage than in a single centralized pumping station in a building. Shanghai "Residential Design Standards" (DGJ08-20-2001) Article 10.0.19 stipulates: There should be no sewage pipe to the pump room through. "Secondary Water Supply Facilities Health Code" (GBl7051-1997) Article 5.5 provides that: Within 10m around the reservoir shall not seepage pits and trash and other pollutants. There should be no sewage pipelines and pollutants within 2m around the water tank. Under these conditions, the effective area available for centralized pumping stations located in the basement is still quite limited. In general, it is more reasonable to set centralized pumping stations in underground garages because of large garages in the garage, fewer shear walls, fewer sewer lines around the pump room, and larger areas available for centralized pumping stations. (3) For example, in a high-rise residential area, if the basement of an adjacent building is not connected, it is not suitable to set centralized pumping house because the pressure of outlet water in high-rise residential pumping house is generally greater than 0.45MPa; Within the overall impact on the overall pipeline district, and the use of a wide range of trench, but also greatly reduced the quality of the district. Central pump room pump pipe buried in the casing, is not conducive to the maintenance and maintenance of the pipeline. Take Shanghai as an example, the water supply pipelines in the house belong to the developer and the water supply pipeline outside the house, and the property rights belong to the water company. Based on the experience accumulated over many years of operation, the water company has set up its own business for the overall pipeline Standard, so in the basement is not connected to the case, set centralized pump room is not desirable. If the basement of an adjacent building is connected, a centralized pump room can be set up. Because the pump tube takes the pipe inside the house, it is much easier to maintain and maintain the internal pipeline in the house and has no effect on the overall pipeline integration. So if the high-rise residential areas to be set centralized pump room, you can suggest that the construction of professional high-rise residential basement connectivity. In summary, the setting of water pump room is a very important link in the design of water supply and drainage. Generally, during the construction phase of the project, the water supply and drainage professionals should be involved. Combining with the construction scheme, various possibilities for setting up the water pump room are put forward , With the deepening of the design, combined with the actual situation of the local water company, according to the project operation cycle, coordination with the building professionals to jointly design a most economical and reasonable water pump room.
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