CN205244643U - Municipal administration is with having drainage pipe who prevents corrosive effects - Google Patents

Abstract

The utility model discloses a municipal drainage pipe with anti-corrosion function, which comprises a cement drainage pipe, a layer of waterproof and anti-corrosion polyethylene film is arranged on the outer wall of the cement drainage pipe, and the inner wall and the end surface of the cement drainage pipe are coated with There is a polytetrafluoroethylene layer with waterproof and anti-corrosion effect. The utility model has beneficial effects: the outer wall of the cement drainage pipe is provided with a waterproof and anti-corrosion polyethylene film, which avoids corrosion damage to the outer wall of the drainage pipe by corrosive soil and achieves waterproof effect. The inner wall of the drainage pipe and its end surface are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer, which prevents the discharged liquid from causing corrosion damage to the interior of the drainage pipe, and makes the inside of the pipe smoother, and the branch pipes are easier to connect and less susceptible to damage. corrosion.

Description

A municipal drainage pipe with anti-corrosion effect

technical field

The utility model relates to a municipal drainage pipe with anti-corrosion effect.

Background technique

The municipal drainage pipeline system is one of the infrastructures of the city, and it is an important part of urban construction along with power supply, heating, water supply, and communication lines. With the continuous acceleration of the urbanization process in our country, the population in the city has increased sharply, the south-to-north water diversion, and the west-to-east gas transmission have become common phenomena. Projects are also getting more and more attention.

The existing municipal drainage pipes are composed of cement drainage pipes and connectors. Rainwater, various mixed urban sewage, and even some substandard industrial wastewater, as well as the acidic soil surrounding the pipes, will corrode the drainage pipes. If it is not treated in time, it will eventually even pollute the surrounding soil, which is very unfavorable to urban construction and management.

CN104373749A discloses a prefabricated directly buried anti-corrosion pipeline. Two flat alarm cable belts with grooves that can be inlaid with alarm lines are pasted on the outer wall of the working tube. Anti-corrosion material layer or wrapping polyethylene sheet tape. Therefore, pipeline leakage problems can be detected in advance, and pipeline repairs can be intervened in advance.

However, the existing technology cannot provide the anti-corrosion function of the inside and outside of the drainage pipe at the same time; the joints between the drainage pipes are prone to leaks, and if they cannot be detected in time, it will cause huge losses; the drainage pipes are not easy in the excavated soil. Fixed horizontally, it will make it difficult to connect the drainage pipes.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a municipal drainage pipe with anti-corrosion effect.

In order to achieve the above object, the utility model provides the following technical solutions:

A municipal drainage pipe, comprising a cement drainage pipe, the outer wall of the cement drainage pipe is provided with a waterproof and anti-corrosion polyethylene film, and the inner wall of the cement drainage pipe and its end surface are coated with a waterproof and anti-corrosion film. Corrosive action of the PTFE layer.

The utility model has the advantages that: the outer wall of the cement drainage pipe is provided with a waterproof and anti-corrosion polyethylene film, which avoids the corrosion damage of the corrosive soil to the outer wall of the drainage pipe and achieves the waterproof effect. The inner wall of the drainage pipe and its end surface are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer, which prevents the discharged liquid from causing corrosion damage to the interior of the drainage pipe, and makes the inside of the pipe smoother, and the branch pipes are easier to connect and less susceptible to damage. corrosion.

The utility model is further set as follows: there are several cement drainage pipes, waterstops are wound between the end faces of the cement drainage pipes, a liquid leakage detection system is arranged near the waterstops, and the leakage detection system is composed of a pressure sensor, an emission The pressure sensor is covered with a waterproof film, and there is a certain space between the waterstop and the leakage detection system and they are placed in the connecting sleeve.

The utility model has the advantages that once liquid leakage occurs at the joint, the water stop will expand immediately to prevent liquid leakage. , which is transmitted to the warning device by the transmitter and receiver, which can detect the leakage of the pipeline connection in time and accurately, and immediately carry out emergency repairs to reduce losses and pollution.

The utility model is further configured as follows: a trapezoidal reinforcement platform is provided at the bottom end of the cement drainage pipe, and the trapezoidal reinforcement platform has a curved surface abutting against the bottom end of the cement drainage pipe.

The utility model has the advantages that: the trapezoidal reinforcing platform can keep the drainage pipes horizontally fixed in the excavated soil, so that the drainage pipes can be easily connected closely.

In summary, the beneficial effects of the utility model are:

1. On the outer wall of the cement drainage pipe, there is a waterproof and anti-corrosion polyethylene film, which avoids the corrosion damage of the corrosive soil to the outer wall of the drainage pipe, and also achieves the waterproof effect. The inner wall of the drainage pipe and its end surface are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer, which prevents the discharged liquid from causing corrosion damage to the interior of the drainage pipe, and makes the inside of the pipe smoother, and the branch pipes are easier to connect and less susceptible to damage. corrosion.

2. Once there is a liquid leakage at the connection, the water stop will immediately expand to prevent the liquid from leaking. At the same time, the water stop will fill the connection sleeve and press the pressure sensor, causing it to sense. The receiver is transmitted to the alarm, which can detect the leakage of the pipeline connection in time and accurately, and immediately carry out emergency repairs to reduce losses and pollution.

3. The trapezoidal reinforcement platform can keep the drainage pipes horizontal and fixed in the excavated soil, making it easy to connect the drainage pipes tightly.

Description of drawings

Fig. 1 is a cross-sectional view of the utility model;

Fig. 2 is the side structure schematic diagram of the utility model;

Fig. 3 is the left view of utility model;

Fig. 4 is a flowchart of the liquid leakage detection system in the utility model.

detailed description

The utility model is described further with reference to Fig. 1 to Fig. 4.

Example 1

Referring to Fig. 1, the outer wall 9 of the cement drain pipe 4 is provided with a waterproof and anti-corrosion polyethylene film 3, and the inner wall 10 of the cement drain pipe 4 and its end face are coated with a polytetrafluoroethylene layer with waterproof and anti-corrosion effect 2. A trapezoidal reinforcement platform 1 is provided at the bottom end of the cement drainage pipe 4 , and the trapezoidal reinforcement platform 1 has a curved surface abutting against the bottom end of the cement drainage pipe 4 .

In this design, a layer of waterproof and anti-corrosion polyethylene film 3 is provided on the outer wall 9 of the cement drainage pipe 4, which avoids the corrosion damage of the outer wall 9 of the drainage pipe by corrosive soil, and also achieves a waterproof effect. The inner wall 10 of the drainage pipe and its end surface are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer 2, which prevents the discharged liquid from causing corrosion damage to the interior of the drainage pipe, and makes the inside of the pipe smoother and the branch pipes are easier to connect Not susceptible to corrosion. In addition, the trapezoidal reinforcement platform 1 can keep the drainage pipes horizontally fixed in the excavated soil, so that the drainage pipes can be easily connected tightly.

Example 2

Referring to Fig. 2, the outer wall 9 of the cement drain pipe 4 is provided with a waterproof and anti-corrosion polyethylene film 3, and the inner wall 10 of the cement drain pipe 4 and its end face are coated with a polytetrafluoroethylene layer with waterproof and anti-corrosion effect 2. And a waterstop 6 is wound between the end faces of the cement drainage pipe 4, and a liquid leakage detection system is arranged near the waterstop 6. The liquid leakage detection system is composed of a pressure sensor 8, a transmitter, a receiver and an alarm. The pressure sensor 8 is covered with a waterproof film, and there is a certain space between the water stop belt 6 and the liquid leakage detection system, and they are placed in the connection sleeve 7 together.

In this design, a layer of waterproof and anti-corrosion polyethylene film 3 is provided on the outer wall 9 of the cement drainage pipe 4, which avoids the corrosion damage of the outer wall 9 of the drainage pipe by corrosive soil, and also achieves a waterproof effect. The inner wall 10 of the drainage pipe and its end surface are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer 2, which prevents the discharged liquid from causing corrosion damage to the interior of the drainage pipe, and makes the inside of the pipe smoother and the branch pipes are easier to connect Not susceptible to corrosion. In addition, a waterstop 6 and a liquid leakage detection system are added. Once a liquid leak occurs at the connection, the waterstop 6 will immediately expand to prevent liquid leakage. At the same time, the waterstop 6 will fill the connection sleeve 7 , Compress the pressure sensor 8, cause it to generate induction, transmit to the warning device through the transmitter and the receiver, can timely and accurately detect which pipeline joint leaks, and immediately carry out repairs to reduce losses and pollution.

Example 3

Referring to Fig. 1 and Fig. 2, the outer wall 9 of the cement drain pipe 4 is provided with a waterproof and anti-corrosion polyethylene film 3, and the inner wall 10 of the cement drain pipe 4 and its end face are coated with polystyrene film with waterproof and anti-corrosion effect. Vinyl fluoride layer 2. A waterstop 6 is wound between the end faces of the cement drain pipe 4, and a liquid leakage detection system is arranged near the waterstop 6. The liquid leakage detection system is composed of a pressure sensor 8, a transmitter, a receiver and an alarm. The pressure sensor 8 is covered with a waterproof film, and there is a certain space between the waterstop 6 and the liquid leakage detection system and they are placed in the connecting sleeve 7 together. In addition, a trapezoidal reinforcement platform 1 having a curved surface abutting against the bottom end of the cement drainage pipe 4 is provided at the bottom end of the cement drainage pipe 4 .

In this design, a waterproof and anti-corrosion polyethylene film 3 is provided on the outer wall 9 of the cement drainage pipe 4, which avoids the corrosion damage of the outer wall 9 of the drainage pipe by corrosive soil, and also achieves a waterproof effect. A layer of polytetrafluoroethylene layer 2 with waterproof and anti-corrosion effect is coated on the inner wall 10 of the drainage pipe and its end surface, which prevents the discharged liquid from causing corrosion damage to the inside of the drainage pipe, and makes the inside of the pipe smoother, and the branch pipes are easier Connections are less susceptible to corrosion. Moreover, a waterstop 6 and a liquid leakage detection system are added. Once a liquid leakage occurs at the joint, the waterstop 6 will expand immediately to prevent the liquid from leaking. At the same time, the waterstop 6 will fill up the connection sleeve 7, Press the pressure sensor 8 to cause induction, which is transmitted to the warning device through the transmitter and receiver, which can detect in time and accurately which pipeline connection leaks, and repair it immediately to reduce losses and pollution. In addition, the trapezoidal reinforcement platform 1 can keep the drainage pipes horizontally fixed in the excavated soil, so that the drainage pipes can be easily connected tightly.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (3)

1. a municipal drainage pipe with anti-corrosion effect, comprising a cement drainage pipe, is characterized in that, the outer wall of the cement drainage pipe is provided with a waterproof and anti-corrosion polyethylene film, and the cement drainage pipe The inner wall and its end face are coated with a waterproof and anti-corrosion polytetrafluoroethylene layer. 2. A kind of municipal drainage pipe with anti-corrosion effect according to claim 1, characterized in that, there are several cement drainage pipes, and waterstops are wound between the end faces of the cement drainage pipes, and the A liquid leakage detection system is provided near the water stop, the liquid leakage detection system is composed of a pressure sensor, a transmitter, a receiver and an alarm, the pressure sensor is covered with a waterproof film, and the water stop There is a certain space between the belt and the liquid leakage detection system and they are both placed in the connection sleeve. 3. A kind of municipal drainage pipe with anti-corrosion effect according to claim 1, characterized in that, the bottom end of the cement drainage pipe is provided with a trapezoidal reinforcement platform, and the trapezoidal reinforcement platform has a The curved surface where the bottom end of the .