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The traditional inspection wells mainly use brick wells and reinforced concrete. With the replacement of cement pipes by plastic pipes, the plastic pipes and brick wells have poor sealing, uneven settlement, serious leakage, secondary pollution of groundwater, and serious increase in later maintenance costs and sewage treatment costs. The traditional brick inspection well has become the main bottleneck affecting the construction of drainage pipes
Published on: February 19, 2024 Number of hits: 2
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The plastic manhole for municipal drainage is a kind of prefabricated manhole, which is made of polymer materials and is used to replace the traditional brick and concrete manhole. According to different structures, plastic inspection wells for municipal drainage can be divided into straight wall plastic inspection wells and closed plastic inspection wells. For plastic inspection wells above OD1000, when the size of the well seat is larger than the diameter of the shaft, the closure can be used
Published on: February 19, 2024 Number of hits: 3
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The installation and removal of drainage pipes is a very important work in the construction and decoration process. The steps of installation and removal of drainage pipes will be introduced in detail below, and some precautions will be listed to better complete this work. 1、 Installation steps of drainage pipes: pre measurement: before installation of drainage pipes, accurate measurement is required,
Published on: February 17, 2024 Clicks: 4
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It is an important decision to select suitable drainage pipes, because the selection of pipes is closely related to the quality and reliability of the entire drainage system. Some general principles and basis for selecting drainage pipes will be introduced below. First, pipes should be selected according to the specific requirements of the drainage system. Drainage system includes indoor drainage system and outdoor drainage system, so we need
Published on: February 17, 2024 Number of hits: 2
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High cost performance ratio of double wall corrugated pipes: the friction coefficient of double wall corrugated pipes is one reason for the low flow rate of pipes, and the pipes used for transportation and other pipes have great advantages. In other words, the double wall waveform of HDPE pipe with relatively small diameter at the same flow rate can be used. The brittleness temperature of low temperature and impact resistant HDPE double wall wave tube is - 70 ° C stay
Published on: February 17, 2024 Clicks: 1
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First, strengthen the construction and reconstruction of various types of underground pipe networks for urban water supply, sewage, rainwater, gas, heat supply, communication, etc., and carry out the pilot project of urban underground pipe gallery. Second, strengthen the construction of urban drainage, waterlogging prevention and flood control facilities to solve the problem of urban waterlogging. Third, strengthen the construction of urban sewage and domestic waste treatment facilities. Fourth, strengthen the construction of urban road traffic infrastructure. Fifth, strengthen the city
Published on: February 1, 2024 Clicks: 4
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Scope of application Ductile iron pipe is a kind of cast iron pipe, which is used as buried water supply pipe. 2 Advantages Compared with steel pipe, it is cheaper, easy to manufacture, and has strong corrosion resistance; The disadvantages are brittle and heavy. There are data showing that there are pipes between DN40 and DN80, but only specifications above DN80 are listed in the design manual. No pipe wall due to nominal pressure
Published on: February 1, 2024 Number of hits: 3
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Scope of application PVC-U pipe is rigid PVC pipe, and the pipe wall structure includes double wall corrugated pipe, reinforced pipe, flat wall pipe and steel plastic composite winding pipe. Steel plastic composite winding pipe is usually connected by inner sleeve bonding. Double wall corrugated pipe, reinforced pipe and flat wall pipe are usually connected by socket and sealed by rubber ring. For flat wall pipe, when the pipe diameter is less than 200mm
Published on: February 1, 2024 Number of hits: 2
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The scope of application has broad prospects when it is used as large and medium diameter water supply and drainage pipes and as water supply and drainage pipes in corrosive soil. Advantages As a new type of composite pipe, GRP sand pipe, compared with other pipes, has the characteristics of safety, durability, economy and good comprehensive benefits, and has won people's attention. Hainan plastic inspection well
Published on: February 1, 2024 Number of hits: 3
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Scope of application PCCP pipes are most suitable for making large diameter pressure pipes, which can meet the requirements of urban water diversion projects, water supply systems, large sewage pipeline projects, as well as the circulating water pipelines of large thermal power plants and nuclear power plants. There is a national standard for prestressed concrete cylinder pipes (GB/T19685-2005). Advantages ① Both steel pipe (SP) and concrete pipe
Published on: February 1, 2024 Clicks: 1
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The steel mesh skeleton plastic composite pipeline is a new type of pipeline with excellent performance, which is widely used in oil fields, power plants, chemical and petrochemical enterprises, water companies, municipal gas, seawater utilization pipelines and other fields. Standard for steel mesh skeleton plastic (polyethylene) composite pipes and fittings: Industrial Standard for Urban Construction of the People's Republic of China CJ/T189 -- 2007
Published on: January 24, 2024 Number of hits: 4
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1. The phenomenon of rapid stress cracking of plastic pipes is overcome. Since the structure of steel and plastic materials is composite, the rapid stress that plastic pipes cannot overcome will not occur. 2. It has strength, rigidity and impact resistance that exceed ordinary pure plastic pipes, and is similar to low linear expansion coefficient and creep resistance of steel pipes; 3. Light weight, convenient installation, pipeline connection
Published on: January 24, 2024 Number of hits: 3
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Characteristics of Hainan municipal pipeline steel belt bellows 1. High ring stiffness, strong resistance to external impact: ring stiffness can reach SN12.5, SN16 and higher; MRP is a flexible pipe. When it is subjected to external impact, it has excellent shape recovery and uneven foundation resistance
Published on: January 24, 2024 Number of hits: 3
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1. Market prospect Plastic pipe is a developing industry in general and will grow at a growth rate far higher than GDP in the future. At present, it is still dominated by middle and low-end products, and is in the transition period to middle and high-end products. The scale of the industry will reach more than 100 billion this year and next year. The market competition is fierce, and the survival situation of the manufacturers in the industry is far from the same, so they are in a relatively strong market both upstream and downstream
Published on: January 22, 2024 Number of hits: 4
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The plastic pipe industry is deeply trapped in the talent dilemma. The development of the industry lacks talent support. The whole cultivation mechanism of the team model obviously leads to the difficulty of retaining professional talents in the plastic pipe industry enterprises, which restricts the expansion of the plastic pipe industry enterprises. The industry has high requirements for the professional quality of employees, mainly in the following two aspects: (1) employees need to have basic knowledge and legal knowledge of the industry,
Published on: January 22, 2024 Number of hits: 1
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The raw materials of plastic pipes are mainly PVC, PE, PP and other macromolecular materials. In China, PVC raw materials are mainly produced in the chlor alkali industry, a small amount in the petrochemical industry, and PE and PP raw materials are mainly produced in the petrochemical industry. The upstream industry of plastic pipe industry is mainly the production industry of PVC, PE, PP and other resin raw materials
Published on: January 22, 2024 Number of hits: 1
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By 2022, in the national new construction, reconstruction and expansion projects, 85% of building drainage pipes will be plastic pipes, 80% of building rainwater drainage pipes will be plastic pipes, 50% of urban drainage pipes will be plastic pipes, 85% of building water supply, hot water supply and heating pipes will be plastic pipes, and 80% of urban water supply pipes (below DN400mm) will be plastic pipes
Published on: January 22, 2024 Number of hits: 1
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Hainan plastic inspection well Plastic inspection well consists of well seat, shaft, well cover, connecting pipe fittings, etc. The road load is applied around the inspection well through the well cover and well seat to avoid the damage of road load to the inspection well. The cover seat has the function of floating up and down, which can actively adapt to the height change of the road surface. At the same time, the shaft can intercept the corresponding length according to the burial depth on site, which has great flexibility
Published on: January 17, 2024 Number of hits: 3
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With the rapid development of the construction market and the continuous improvement of rural road construction in recent years, the steel mesh skeleton pipe in Hainan has been widely used in various water pipes, water supply plants, chemical sewage discharge, sea water transportation and other fields with its own product advantages. 1. Before the construction of the steel mesh skeleton pipe, the pipes and fittings must be inspected and signed, including the quality of the product
Published on: January 10, 2024 Number of hits: 2
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Hainan municipal pipeline I. Pipeline material 1. Basic requirements: sufficient strength and certain rigidity; The inner wall surface of the pipe is smooth, reducing the flow resistance; Have certain corrosion resistance; Sufficient airtightness; Easy to process and economical. 2. Common pipes
Published on: January 3, 2024 Number of hits: 2
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