Commonly used materials for sewage pipes and methods for dredging and cleaning them

Sewage pipes can be said to be a necessary thing in modern life, because the daily emissions in modern life are very large. Fortunately, the existence of sewage pipes allows our daily domestic sewage to be discharged and solved. . Although this is the case, many people don't quite understand what kind of materials sewage pipes are made of. So next, the editor will introduce to you what kind of materials sewage pipes, which play a very important role in our daily lives, are made of.

Materials

The most commonly used materials for sewage pipes - plastic pipes and pipe fittings, rigid polyvinyl chloride pipes (UPVC), UPVC pipes are the most widely used plastic pipes at home and abroad. UPVC pipe has high impact resistance and chemical resistance.

UPVC pipe: It is actually a kind of plastic pipe. The joints are usually glued. UPVC pipe has poor frost resistance and heat resistance, so hot and cold water pipes are rarely used. PVC pipe Suitable for electrical wires and sewage pipes.

The price is related to the pipe specification, and it is the cheapest type of plastic pipe. It is a sewer material commonly used in residential buildings.

If you want to use better ones, use PE pipes. Both cold and hot water can be used, and of course sewers can also be used. Life span is 50 years.

How to dredge household sewage pipes

Log dredging method

First insert a log with a diameter very close to the drain outlet into the drain outlet, and place it in the pool Put in enough water, and then quickly pump the log up and down. Under the action of pressure and suction, the dirt in the pipe may be washed away

Soda and vinegar unblocking method

First pour an appropriate amount of cooked soda ash into the sewer, and then pour an appropriate amount of high-concentration vinegar. The violent chemical reaction between the soda ash and vinegar can remove grease and other sticky things in the pipes

Hydraulic dredging method

Take a plastic pipe with a diameter of 15 mm and a length of about 10 meters (or high-pressure rubber pipe: 50 kg pressure) near the pipe, and put one end tightly on the faucet, nearby Wrap the other end with silk wool around the outside of the rubber tube, plug it tightly into the sewer drain, open the faucet and twist it to the maximum. The pressure and rapid flow of tap water will wash away the blockage

Pump unclogging method< /p>

When a nearby small pipe is clogged, you can insert the rubber hose of the air pump into the sewer, seal the drain, then put in enough clean water, quickly inflate the pipe into the sewer, and the pipe will be unclogged. Tips : The above method is for reference only. It is dangerous to use the above method to clear the pipeline. Please use it under the premise of ensuring safety.

Industrial sewage pipe dredging and cleaning plan

1), trench excavation

First, remove all unusable earth within the excavation range and transport it to the designated location .

Trench excavation will be based on mechanical excavation, supplemented by manual excavation. The trench excavation will adopt single-slope grading, with a slope of 1:0.33, and the excavator will dig to When it is 20cm away from the design elevation, manual bottom cleaning is used, and drainage ditches are left on both sides of the bottom of the trench to prevent the bottom of the trench from soaking.

2). Erection of molds to pour concrete foundations

According to the center line of the road, technicians and construction workers will jointly determine the center line of the pipe position and then erection of molds on both sides. Template adopts new template. The wooden formwork must be stable and have an accurate elevation. A 10cm gravel cushion must be provided. The surface of the cushion must be graded gravel without weathering and basically flat. The bottom plate is poured with C20 concrete. After the bottom plate concrete is vibrated twice with a flat vibrator, it is smoothed and roughened and covered with straw bags in time for maintenance.

3) Installation of pipes and stabilization of reinforcements

The installation of pipes adopts mechanical lowering of pipes, which should be lowered gently during operation to avoid damaging the bottom plate. The connection between the two pipes is tightened by a winch. After adjusting the bottom elevation of the pipe after the joint is basically flat, the next pipe can be hoisted and installed.

4). Concrete stabilization

After the pipeline is hoisted, cast the concrete to stabilize the reinforcement. The pouring should be carried out on both sides at the same time, and the inserted vibrator should be used to repeatedly vibrate until the concrete is poured. The bottom of the tube is sufficient.

5), Manholes

All manholes are made of brick garden wells with a diameter of Φ1000. The manhole construction shall be carried out strictly in accordance with the general drawings of the Municipal Design Institute.

6) Water closure (requirements for sewage pipes)

It can only be carried out after the construction of the manhole is completed and the head is maintained.

After soaking in water for 24 hours, the closed water test can be conducted only if there is no obvious leakage by visual inspection.

7) Backfilling

Backfilling is carried out after the water closure is qualified. First, drain the accumulated water in the trench, and use an excavator to dig the soil to the edge of the trench in the section where there is land. In the landless section, all the earth 1km away is excavated and leveled to the edge of the trench. It is plowed repeatedly and backfilled with an excavator. The thickness of the backfill is one layer every 30cm. It is leveled manually and then compacted. Backfilling is carried out in layers. Pay attention to both sides of the trench. At the same time. After the backfill reaches a certain height, it is compacted using a road roller.

Summary: The editor has introduced to you some of the most commonly used materials for sewage pipes in our daily lives. Usually, we choose to use UPVC pipes as our sewage pipes. Because UPVC pipes have very stable properties, they can easily handle the complex nature of sewage in our daily lives. Therefore, the editor still strongly recommends that you choose UPVC pipes as sewage pipes. Of course, in addition to UPVC pipes, the editor also introduces pipes made of other materials.