-
Rainwater collection system, sedimentation and filtration integrated device process introduction. In the whole rainwater collection system, rainwater sedimentation and filtration is set in the water purification device at the front end of the rainwater collection and storage tank. The rainwater disposed by this process can not only prevent sundries from entering the storage pond, but also reduce the turbidity of rainwater, filter and precipitate sundries. It can also use rainwater gravity flow to realize backwashing and discharge (or return
Published on: 2022-05-27 Number of hits: 72
-
Rainwater collection system refers to the whole process of rainwater recovery and reuse. Rainwater recovery and reuse mainly includes four aspects: initial discarding - filtration - storage - reuse. The completion of these four stages is a whole process of rainwater collection, that is, rainwater collection system. The initial rainwater discarding is in the rainwater collection and utilization system, and the quality of rainwater discarding is directly related to one time
Published on: April 18, 2022 Clicks: 53
-
Before studying the difference between the two, we should first distinguish the following two concepts. The traditional inspection well refers to the inspection well stacked with bricks, which was commonly used in the past. Currently, the inspection wells commonly used in society are basically plastic inspection wells and cement inspection wells, which adopt the one-time injection molding process. Both in terms of corrosion resistance and service life, they are better than before
Published on: April 3, 2022 Number of hits: 15
-
The rainwater inspection well adopts one-time injection molding, which is composed of a base and a barrel. The material is mainly polymer resin material, accounting for more than 80%. The barrel is a one-time injection molding product, or a combination of multiple injection molding products. Its height is adjustable, and it can easily rise to the ground. Advantages and features of rainwater inspection well: faster installation and lower launch cost
Published on: March 21, 2022 Clicks: 23
-
The material of nodular cast iron manhole cover is generally QT500-7. What are the product parameters of nodular cast iron manhole cover? What should be paid attention to during installation? Here is your answer: the original ductile iron was always believed to be invented by an Englishman, but after a period of exploration, it was found that the first ductile iron
Published on: March 8, 2022 Number of hits: 15
-
The reason why the steel skeleton plastic composite pipe bursts is that the steel skeleton plastic composite pipe is a relatively popular new type of pipe in modern times. It has advanced technology and special materials, so the product performance is very good. In fact, good products are not enough. Our strict construction technology is also required during construction. If the technology is not up to standard, it is easy to cause pipe explosion. Then, cause explosion
Published on: March 8, 2022 Clicks: 19
-
Although there are various specifications, models and sizes of pipe products such as steel mesh skeleton composite pipes, their length is limited, so pipe connection is generally required during construction. When connecting pipes, be sure to master the correct method, otherwise the pipes may be damaged and the construction cannot be carried out normally. How to connect the steel mesh skeleton composite pipe? We can refer to
Published on: February 10, 2022 Clicks: 21
-
As China's economy is more and more developed, people's living standards are also getting higher and higher, and the quality of life is also increasingly valued. Water is a necessity in people's life. The quality of water directly affects our health and quality of life, and even the quality of industrial products. Hainan municipal pipeline However, with the increasingly serious water pollution, the common municipal water supply has been unable to meet
Published on: November 7, 2021-11 Number of hits: 51
-
The general construction procedure of building pipeline engineering is: "construction preparation → reservation and embedding → pipeline mapping and setting out → pipeline element inspection → pipeline support fabrication and installation → pipeline processing and prefabrication → pipeline installation → system test → anti-corrosion and thermal insulation → system cleaning → trial operation → completion acceptance". Among them, pipeline system test is an essential step before completion acceptance, and there are five major steps according to the specification requirements
Published on: November 7, 2021-10 Clicks: 49
-
1、 Project overview 1. The gutter inlet is a double grate gutter inlet, and the surrounding area of the gutter inlet is reinforced with C25 concrete. The rainwater grate is made of heavy plastic steel composite material. The inner opening size of the grate base is 300mm × 550mm. Hainan ductile iron manhole covers 2. Inspection manhole covers are divided into two types, one is the manhole cover in the green belt. The second is the inspection well on the motorway
Published on: September 3rd, 2021 Clicks: 97
-
1) For brick masonry of manhole, manhole cover with inner diameter of 700mm shall be selected according to the size of manhole in the design drawings. Hainan nodular cast iron manhole cover 2) Determine the elevation of the top surface of the inspection well brickwork according to the thickness of the manhole cover and the height requirements of the top surface of the green belt filling. 3) Before installing the well cover in the green belt, it is required to have a certain thickness of fill in the green belt so as not to affect the installation of the well cover and well C25
Published on: July 25, 2021 Clicks: 55
-
In the so-called heavy type, it refers to the allowable pressure bearing capacity of 360kN or super steam - Grade 20 main vehicle in the delivery inspection; Light refers to the city where the pressure bearing 210kN or Class 10 main vehicle, Hainan nodular cast iron manhole cover and heavy airport, or highways and other special roads and sites for helicopters to take off and land are allowed to drive and park heavy vehicles
Published on: June 19, 2021 Number of hits: 35
-
There are many kinds of well covers. When facing so many kinds of well covers, we will think of what is special about these well covers? So many manhole covers naturally exist at the same time. A manhole cover can survive in the market for a long time, which means that this kind of manhole cover will not be completely rejected. Otherwise, what's the significance of its existence? So how can we correct so many manhole covers
Published on: May 8th, 2021 Clicks: 53
-
As one of the important components of urban infrastructure, municipal pipelines can timely drain urban surface rainwater, provide industrial and domestic water for the city, and prevent urban water resources from being polluted. Today, I sorted out the contents related to the construction and design of municipal pipelines, hoping to help you. Hainan municipal pipeline I. Pipeline materials 1. Basic requirements: enough
Published on: April 25, 2021 Clicks: 36
-
The reason for the wall cracking of ductile iron pipe is that there is no proper provision in casting to change the useful factor of cracking caused by proper brittleness. It is suggested that you use the cast iron fault repair machine. The reason for the crack is that the temperature is too high during the heat treatment in casting. At present, it is available in the market, but it can only be repaired to ensure that its outline is intact, so that your product can pass the moral standards, but if it is operational
Published on: April 23, 2021 Clicks: 43
-
It is one of the most basic methods for pipeline corrosion prevention to evenly and densely coat the derusted metal pipeline surface with paint to isolate it from various corrosive media. Since the 1970s, pipeline laying in polar, marine and other harsh environments, as well as oil heating and transportation, have raised the temperature of the pipeline, putting forward more requirements for coating performance. Therefore, more and more pipeline anti-corrosion coatings
Published on: April 16, 2021 Clicks: 50
-
Why is the anti-corrosion work of nodular cast iron manhole cover? According to the name, we can see that the manhole cover is made of nodular cast iron. In general, iron will rust, but the corrosion resistance of the nodular cast iron is greatly improved. In addition, if you simply do a corrosion prevention work, you can improve its service life
Published on: April 14, 2021 Clicks: 39
-
For plastic drainage inspection wells, the labor cost, material cost and machinery cost should be considered when the quota is set. The premise of the quota is to have a deep understanding of the construction technology of plastic drainage inspection wells. For example, whether the plastic drainage inspection wells need to be built as sink wells or launder wells, it is best to first look at the relevant engineering practice atlas, How to set norms for plastic drainage inspection wells
Published on: April 10, 2021 Clicks: 120
-
A. Pit and foundation 1. Pit and pipe trench shall be excavated at the same time. During excavation, the main line of the well seat shall be on the same axis as the pipe in the pipe trench. The pit slope is consistent with the pipe trench slope. During pit excavation, the foundation soil shall not be disturbed for over excavation; If the foundation soil is disturbed, relevant provisions of the current Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering GB50268 shall be followed,
Published on: March 5, 2021 Number of hits: 33
-
How to maintain the cast iron well cover? Now let's introduce the maintenance of cast iron manhole covers? Hainan nodular cast iron manhole cover The nodular cast iron manhole cover we usually see is made of cast iron plate. In order to prevent the cast iron plate from deformation, we need to know some methods to maintain the cast iron plate. We can maintain the cast iron plate from the following aspects
Published on: March 3, 2021 Clicks: 31
97 in total
20 entries per page
Page: 3/5
