Plastic Sewage Inspection Chamber

In recent years, with the popularization and application of plastic drainage pipes in the outdoor rainwater drainage system of residential areas, plastic drainage pipes have become the mainstream pipes in the residential drainage network, which has played a great role in improving the quality of outdoor drainage projects. At the same time, the traditional brick sewage inspection chamber have largely become a hidden danger to the quality and pollution of the residential drainage network. Compared with plastic sewage inspection chamber, their disadvantages have become more and more prominent. As a professional manufacturer specializing in the production of plastic sewage inspection chamber, customers with professional knowledge will also discuss with us some product-related knowledge and insights when they inspect the factory. Next, I will introduce the design and application of plastic sewage inspection chamber for drainage to facilitate customers in need refer to. Customers who need to check plastic sewage inspection chamber parameters can refer to the parameter table at the end of the article.

Comparison with Traditional Brick Sewage Inspection Chamber

(1) Performance comparison: The plastic sewage inspection chamber solves the leakage problem of traditional brick wells and prevents secondary pollution; especially in the sealing of the pipeline inlet and outlet and the wellhead, it can effectively prevent the odor from escaping and the leakage at the interface. Leakage; plastic sewage inspection chamber is resistant to acid and alkali, such as the Shanghai Light Source Project of the Chinese Academy of Sciences uses plastic sewage inspection chamber due to special discharge requirements; plastic inspection well can prevent groundwater from seeping into the sewage inspection chamber, improve drainage, and the drainage capacity is greater than that of brick wells; plastic sewage The inspection chamber is smaller than a brick well and occupies a smaller area.

(2) Construction comparison: the plastic sewage inspection chamber is manufactured in a factory, and the quality is guaranteed; it is easy to install, and practice has proved that the plastic sewage inspection chamber does not require an additional maintenance period, which shortens the construction period; the plastic sewage inspection chamber can be constructed all day long. It is not affected by climate conditions, etc.; in places where the space is small, the plastic sewage inspection chamber is more convenient to install due to its small size and other advantages.

(3) Maintenance comparison: after the installation of the plastic sewage inspection chamber, the maintenance cost is low; the plastic sewage inspection chamber is easier to clear, and the method of combining a self-propelled water gun with a traditional spiral nylon rope can be used; the corner connection of the plastic sewage inspection chamber. Both are connected by smooth arcs, which is convenient for clearing and protecting clearing tools, saving management costs.

The above are the advantages of the plastic sewage inspection chamber compared with traditional inspection manhole. For customers who need parameters, please refer to the table at the end of the article. For customers who need customized products, please leave a message or contact us.

Design points of drainage system of plastic sewage inspection chamber

At present, the plastic sewage inspection chamber for drainage is still in the process of gradual promotion in engineering design. Therefore, issues such as its scope of application, use specifications, pipe connection, and pipe material selection have been widely discussed by designers. The following is based on my experience in engineering design.

Make a brief summary of the design points of the drainage system of the plastic sewage inspection chamber.

Scope of application of plastic sewage inspection chamber

Plastic sewage inspection chamber is suitable for building residential areas (villas, residential areas, scientific research institutes, schools, factories, large squares), inner parking aprons, green spaces, sewage discharge in printing and dyeing areas, acid-base industrial wastewater discharge, hospitals and disease control areas, rainwater collection, etc.; in areas where the depth of the freezing line is greater than or equal to 1.0m, the wellbore in the frozen layer should be marked to be made of low-temperature resistant plastic.

Common specifications

Start well, through well, 90. Elbow Well, 45. Elbow well, left three-way well, right three-way well, confluence three-way well, confluence four-way well, No. 13 rainwater well, etc.

The main design points of the drainage pipeline in the building area

(1) The relevant buildings, green belts, roadways, fire truck passages, sidewalks, parking aprons, and outdoor ground elevations shall be marked on the general plan.

(2) The drainage pipes on the general plan shall have a legend for distinguishing sewage pipes, rainwater pipes, etc.

(3) Except as stated in the description of the construction drawing, the diameter and slope of the drainage pipe shall be marked.

(4) The sewage inspection chamber connected to the pipeline should have a serial number. The initial letter of the sewage inspection chamber on the domestic drainage pipe is "w", and the rainwater sewage inspection chamber is "Y".

(5) Each sewage inspection chamber should have the elevation of the pipe bottom of the connecting pipe, especially the elevation of the discharge pipe (the drainage horizontal pipe section from the inside of the building or the outer wall to the outdoor sewage inspection chamber), and the pipe should enter the sewage inspection chamber along the direction of water flow. Top butt joint. When the connecting pipe has a single pipe diameter and slope, it is only necessary to indicate the elevation of the inner bottom of the sewage inspection chamber at the beginning of the connecting pipe and the elevation of the inner bottom of the connecting pipe of the sewage inspection chamber connected to the branch pipe.

Some problems and solutions encountered in actual construction and use

(1) Regarding the location of the drainage pipe: when the elevation of the exit pipe is inconsistent with the entrance of the inspection well, the pipe can be connected to the well seat through a spherical universal joint, or through two 45. The elbow adjusts the outlet pipe position and connects to the well base. The main drainage pipe should be connected to the well seat socket of the sewage inspection chamber. According to the actual setting conditions, it can also be connected to the wellbore by drilling holes in the wellbore and matching saddle joints.

(2) Regarding the problem of non-uniform caliber standards for connecting pipes: when connecting with main pipes, due to the variety of buried plastic pipes in China, and most of them are internal diameter series pipes at present, the plastic sewage inspection chamber will appear when it is connected to the pipe. There are many difficulties, so the manufacturer is required to order conversion pipes of various specifications, which can not only be matched with PVC pipes, but also suitable for connection with FRPP, HDPE and other pipes.

(3) Regarding the adjustment of the elevation of the access pipe: the elevation of the access pipe can be adjusted arbitrarily according to the actual situation, and the height of the sewage inspection chamber is cut uniformly after the completion of the pavement foundation, which can avoid the need to repeatedly determine the elevation during construction. The complex process is one of the highlights of the sewage inspection chamber.

(4) Questions about the foundation of the well seat: the foundation under the plastic inspection well seat needs to be paved with commonly used sand and ash, so as to increase the force-bearing area of the inspection well, thereby increasing the compressive strength. If water accumulation occurs during excavation, sandbags should be placed on both sides of the well base to reduce buoyancy.

(5) Regarding maintenance and repair: Plastic drainage sewage inspection chamber does not require maintenance personnel to go down to the well, because the plastic drainage inspection chamber has a smooth flow channel inside, compared with the traditional brick sewage inspection chamber, the drainage efficiency is high. There is a smooth arc at the corner where the passing tool passes, which is not easy to be blocked. Even in the case of blockage, it can be solved by repeated pressurization and flushing of the clearing tool, which greatly reduces the daily maintenance cost.

(6) Regarding the ventilation of drainage wells: Since the sewage pipes of drainage plastic pipes are used in the community, the flow rate is relatively slow, and the pipe fullness is <0.55. If the pipeline is long, vents can be set at the far end to reduce the gas concentration.

The above content is the knowledge content related to the plastic sewage inspection chamber. For customers who need parameters, please refer to the following table. We are a professional manufacturer of plastic sewage inspection chamber. We mainly produce plastic sewage inspection chamber made of PE and SMC. If you need more parameters and prices for customized products, please leave a message or contact us directly.