Building sewer line self-cleaning system

Abstract

The utility model relates to the field of pipeline self-cleaning, and discloses a building sewer pipeline self-cleaning system which comprises a pipeline assembly and a water pressure assembly, the pipeline assembly comprises a vertical sewer pipe, a three-way pipe and a transverse sewer pipe, one end of the vertical sewer pipe is fixedly connected with one water inlet port of the three-way pipe, and the other end of the vertical sewer pipe is fixedly connected with the other water inlet port of the three-way pipe; one end of the transverse sewer pipe is fixedly connected with a water outlet port of the three-way pipe, the water pressure assembly is arranged on one side of the three-way pipe, the water pressure assembly is used for cleaning dirt in the pipeline assembly, and the water pressure assembly comprises a bottom plate, an air pressure tank, a water storage tank, an air pump, an air supplementing pipe, an air conveying pipe, a water conveying pipe and a reducer pipe. The automatic cleaning device has the following advantages and effects that the sewer line in the residential building can be automatically cleaned, various dirt attached to the inner wall of the sewer line can be effectively removed, smooth drainage of the sewer line is guaranteed, blockage of the sewer line is avoided, and compared with a traditional manual cleaning and dredging method, the automatic cleaning device is more efficient, saves energy and is more environmentally friendly.

Description

Technical Field

[0001] This application relates to the field of pipe self-cleaning technology, and in particular to a self-cleaning system for building drainage pipes. Background Technology

[0002] Blocked sewer pipes in residential buildings are a common problem. The causes of blockage include foreign objects, aging pipes, unreasonable design, improper use, or scale buildup. According to statistics, among the many factors that cause sewer blockage, foreign objects account for more than 92%. Foreign objects such as hair, grease, food scraps, and toilet paper enter the pipes, accumulate and clog them, causing poor drainage or even complete blockage.

[0003] Clogged drains can cause inconvenience. In severe cases, sewage may backflow into bathrooms, kitchens, and other living areas, causing environmental pollution and hygiene problems. The decomposition of the blockage will produce a foul odor, affecting indoor air quality and reducing living comfort. Stagnant sewage can easily breed bacteria, viruses, and pests, endangering residents' health. Sewage backflow may also cause safety hazards such as short circuits and electrical leaks. Long-term blockage may increase the pressure inside the drain pipes, thereby damaging the pipe structure and even causing damage to walls and floors. Clogged drains can also affect the daily lives of neighbors on the floors above and below.

[0004] In related technologies, sewer pipes in residential buildings usually do not have automatic cleaning functions. When sewer pipes become blocked, they need to be cleaned and dredged manually, which is time-consuming and labor-intensive. Furthermore, cleaning and dredging severely blocked sewer pipes requires various expenses such as ground excavation, pipe disassembly, application of special tools, and labor, thus failing to achieve efficient, energy-saving, and environmentally friendly results.

[0005] Therefore, we propose a self-cleaning system for building drainage pipes to solve the above problems. Utility Model Content

[0006] In order to solve the problem that sewer pipes in residential buildings usually do not have an automatic cleaning function, this application provides a self-cleaning system for building sewer pipes.

[0007] The above-mentioned technical objective of this application is achieved through the following technical solution: a self-cleaning system for building drainage pipes, comprising a pipe assembly and a water pressure assembly. The water pressure assembly includes a base plate, a pressure tank, a water storage tank, an air pump, an air supply pipe, an air delivery pipe, a water delivery pipe, and a reducer. The base plate is located on the side of the tee pipe away from the horizontal drainage pipe. The pressure tank and the water storage tank are both fixedly installed on the top of the base plate. The air outlet of the air pump is fixedly connected to the air inlet of the pressure tank. One end of the air delivery pipe is fixedly connected to the air outlet of the pressure tank, and the other end of the air delivery pipe is fixedly connected to the water storage tank. The water delivery pipe is fixedly connected to the drain end of the water storage tank. The reducer is located between the water delivery pipe and the tee pipe.

[0008] By adopting the above technical solution, the air pump is used to replenish pressurized air into the pressure tank, the pressure tank is used to store pressurized air, the water tank is used to store clean water, and the clean water stored in the water tank can be transported to the reducer pipe through the water delivery pipe, so that the clean water flowing out of the reducer pipe forms a high-pressure water jet and sprays into the tee pipe, which can powerfully flush the dirt in the pipe components, effectively prevent the pipe components from being blocked, and keep the drainage pipe unobstructed.

[0009] Optionally, the pipe assembly includes a vertical drain pipe, a tee pipe, and a horizontal drain pipe. One end of the vertical drain pipe is fixedly connected to one of the inlet ports of the tee pipe, and one end of the horizontal drain pipe is fixedly connected to the outlet port of the tee pipe. A water pressure assembly is installed on one side of the tee pipe and is used to clean dirt inside the pipe assembly.

[0010] By adopting the above technical solution, a pipe assembly consisting of vertical drain pipes, tee pipes, and horizontal drain pipes is used to drain domestic sewage generated in buildings. The water pressure component is used to clean the dirt inside the pipe assembly, prevent blockage inside the pipe assembly, and ensure smooth sewage discharge.

[0011] Optionally, the reducing pipe includes a pipe body and a high-pressure nozzle. One end of the pipe body is fixedly connected to the end of the water supply pipe away from the water storage tank. A reducing pipe cavity is provided inside the pipe body. The high-pressure nozzle is fixedly connected to the other end of the pipe body. One end of the high-pressure nozzle is fixedly connected to the other water inlet port of the tee pipe.

[0012] By adopting the above technical solution, and utilizing the combined action of the pipe body, the variable diameter pipe cavity, and the high-pressure nozzle, a high-pressure water flow can be generated and sprayed into the tee pipe.

[0013] Optionally, the nozzle of the high-pressure nozzle (113) is a single-hole nozzle or a multi-hole nozzle, and is equipped with a conversion device.

[0014] Optionally, an electromagnetic check valve is fixedly installed on both the gas supply pipe and the gas delivery pipe, and an electromagnetic check valve is fixedly installed on the water delivery pipe.

[0015] By adopting the above technical solutions, the electromagnetic check valve one on the gas supply pipe and the gas delivery pipe, as well as the electromagnetic check valve two on the water delivery pipe, can prevent gas and water backflow and ensure the safe operation of the system.

[0016] Optionally, a pressure gauge is fixedly installed on the top of the pressure tank.

[0017] By adopting the above technical solution, the pressure gauge can display the air pressure value inside the pressure tank in real time, which makes it easier for operators to grasp the equipment status and make timely adjustments.

[0018] Optionally, a water supply pipe is fixedly installed on the top of the water storage tank, and a water supply valve is fixedly installed on the water supply pipe.

[0019] By adopting the above technical solution, the water supply pipe and water supply valve can be set up to easily replenish clean water into the water storage tank, ensuring the continuous operation of the system.

[0020] Optionally, a PRC controller and a wireless remote control device are fixedly installed on the outer wall of the water storage tank, and the air pump, two electromagnetic check valves (one and two), the PRC controller, and the wireless remote control device are electrically connected.

[0021] By adopting the above technical solution, the PRC controller can be used to automatically control the operation of the air pump and the two electromagnetic check valves (one and two), as well as their shutdown upon power failure.

[0022] Optionally, an infrared detector and a liquid level sensor are fixedly installed on the horizontal drain pipe. The detection end of the infrared detector and the detection end of the liquid level sensor are both located inside the horizontal drain pipe, and both the infrared detector and the liquid level sensor are electrically connected to the PRC controller.

[0023] By adopting the above technical solution, the infrared detection sensor is used to detect the dirt on the inner wall of the horizontal drain pipe, the liquid level sensor is used to detect the sewage level in the horizontal drain pipe, and the PRC controller, wireless remote control device and air pump, two electromagnetic check valves, the infrared detection sensor, the liquid level sensor and other components are electrically connected to realize automation and remote control.

[0024] Optionally, an inspection channel is fixedly installed on the vertical drain pipe, and a plug is threaded onto the top of the inspection channel.

[0025] The above technical solution facilitates the inspection and maintenance of the interior of vertical drain pipes.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] 1. This application utilizes a water pressure component to generate high-pressure water flow to powerfully flush out dirt inside the pipe assembly, effectively preventing pipe blockage and keeping the drainage pipe unobstructed.

[0028] 2. This application utilizes high-pressure water flow to create a strong impact on the inner walls of tee pipes and horizontal drain pipes, effectively removing dirt, grease, and other deposits adhering to the pipe walls. It allows the high-pressure water flow to penetrate every corner of the pipe, including bends and complex structures, making it particularly effective for cleaning hard-to-reach areas. This high-pressure water cleaning method relies primarily on physical force, completing the cleaning work with little or no chemical cleaning agents, reducing environmental pollution and pipe material corrosion. High-pressure water cleaning can be completed in a shorter time, saving significant water and energy compared to other methods requiring prolonged soaking or repeated cleaning. Regular high-pressure water cleaning of the pipe inner walls prevents the accumulation of dirt and corrosion, extending pipe lifespan and reducing maintenance and replacement costs. Therefore, compared to traditional manual cleaning and unclogging methods, high-pressure water cleaning is more efficient, energy-saving, and environmentally friendly.

[0029] 3. This application achieves automation and remote control by utilizing the electrical connection between a PRC controller, a wireless remote control device and an air pump, two electromagnetic check valves (one and two), an infrared detection sensor, and a liquid level sensor, thereby enabling the pipeline to self-clean and maintain unobstructed drainage. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram from the first perspective of this embodiment.

[0031] Figure 2 This is a three-dimensional structural diagram from the second perspective of this embodiment.

[0032] Figure 3 This is a schematic diagram of the main sectional view of the reducing pipe.

[0033] In the diagram: 1. Vertical drain pipe; 2. T-joint; 3. Horizontal drain pipe; 4. Base plate; 5. Pressure tank; 6. Water storage tank; 7. Air pump; 8. Air supply pipe; 9. Air delivery pipe; 10. Water delivery pipe; 11. Reducer; 111. Pipe body; 112. Reducer cavity; 113. High-pressure nozzle; 12. Electromagnetic check valve one; 13. Pressure gauge; 14. Water supply pipe; 15. Electromagnetic check valve two; 16. PRC controller; 17. Wireless remote control device; 18. Infrared detection sensor; 19. Liquid level sensor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0035] This application discloses a self-cleaning system for building drainage pipes, including pipe components and water pressure components, wherein:

[0036] The piping assembly includes a vertical drain pipe 1, a tee pipe 2, and a horizontal drain pipe 3. All three pipes are made of transparent material to allow for easy visualization of their internal components. One end of the vertical drain pipe 1 is fixedly connected to one of the inlet ports of the tee pipe 2, and one end of the horizontal drain pipe 3 is fixedly connected to the outlet port of the tee pipe 2. A water pressure assembly is located on one side of the tee pipe 2 and is used to clean debris from inside the piping assembly. The water pressure assembly includes a base plate 4, a pressure tank 5, a water storage tank 6, an air pump 7, an air supply pipe 8, an air delivery pipe 9, a water delivery pipe 10, and a reducer 11. The base plate 4 is located on the side of the tee pipe 2 furthest from the horizontal drain pipe 3. The pressure tank 5 and the water storage tank 6 are both fixedly connected. The pressure tank 5 is fixedly installed on the top of the base plate 4. The pressure tank 5 is used to store pressurized air, and the water tank 6 is used to store clean water. The air outlet of the air pump 7 is fixedly connected to the air inlet of the pressure tank 5. One end of the air supply pipe 9 is fixedly connected to the air outlet of the pressure tank 5, and the other end of the air supply pipe 9 is fixedly connected to the water tank 6. The water supply pipe 10 is fixedly connected to the drain end of the water tank 6. The reducer 11 is set between the water supply pipe 10 and the tee pipe 2. The reducer 11 includes a pipe body 111 and a high-pressure nozzle 113. One end of the pipe body 111 is fixedly connected to the end of the water supply pipe 10 away from the water tank 6. A reducer cavity 112 is provided inside the pipe body 111. The high-pressure nozzle 113 is fixedly connected to the other end of the pipe body 111. One end of the nozzle 3 is fixedly connected to the other water inlet port of the tee pipe 2. It should be noted that the nozzle of the high-pressure nozzle 113 can be designed as a single-hole nozzle or a multi-hole nozzle. The water pressure assembly, through the cooperation of the air pump 7, air pressure tank 5, water storage tank 6, etc., can generate high-pressure water flow, which is sprayed out into the tee pipe 2 through the high-pressure nozzle 113 of the reducer pipe 11. It can powerfully flush out dirt in the pipe assembly, effectively prevent pipe blockage, and keep the drainage pipe unobstructed. By using the high-pressure water flow to form a strong impact force on the inner wall of the tee pipe 2 and the horizontal drain pipe 3, it can effectively remove dirt, oil stains and other deposits attached to the pipe wall, and can make the high-pressure water flow penetrate into every corner of the pipe, including bends and complex sections. For complex structures, high-pressure water jet cleaning is particularly effective for cleaning hard-to-reach areas. This method relies primarily on physical force and can complete cleaning with little or no chemical cleaning agents, reducing environmental pollution and pipe material corrosion. High-pressure water jet cleaning can be completed in a shorter time, saving significant water and energy compared to other methods that require prolonged soaking or repeated cleaning. Regularly using high-pressure water jets to clean the inner walls of pipes can prevent the accumulation of dirt and corrosion, thus extending pipe lifespan and reducing maintenance and replacement costs. Therefore, compared to traditional cleaning and unclogging methods, high-pressure water jet cleaning is more efficient, energy-saving, and environmentally friendly.

[0037] In this embodiment, an electromagnetic check valve 12 is fixedly installed on both the gas supply pipe 8 and the gas delivery pipe 9, and an electromagnetic check valve 25 is fixedly installed on the water delivery pipe 10. The electromagnetic check valve 12 on the gas supply pipe 8 and the gas delivery pipe 9, and the electromagnetic check valve 25 on the water delivery pipe 10, can prevent gas and water from flowing back and ensure the safe operation of the system.

[0038] In this embodiment, a pressure gauge 13 is fixedly installed on the top of the pressure tank 5. The pressure gauge 13 is used to display the air pressure value inside the pressure tank 5 in real time. A water supply pipe 14 is fixedly installed on the top of the water storage tank 6. A water supply valve is fixedly installed on the water supply pipe 14. The water supply pipe 14 and the water supply valve can conveniently replenish clean water into the water storage tank. It should be noted that the end of the water supply pipe 14 away from the water storage tank 6 is connected to an external clean water pipe.

[0039] In this embodiment, a PRC controller 16 and a wireless remote control device 17 are fixedly installed on the outer wall of the water storage tank 6. The air pump 7, two electromagnetic check valves 12 and 15, the PRC controller 16, and the wireless remote control device 17 are electrically connected. An infrared detector 18 and a liquid level sensor 19 are fixedly installed on the horizontal drain pipe 3. The detection ends of the infrared detector 18 and the liquid level sensor 19 are both located inside the horizontal drain pipe 3. It should be noted that a liquid level sensor 19 (not shown in the text) is also installed on the vertical drain pipe 1. This liquid level sensor 19 is used to detect the sewage level in the vertical drain pipe 1. The infrared sensor 18 and the liquid level sensor 19 are both electrically connected to the PRC controller 16, starting from the top of the upper wall of the horizontal drain pipe 3 and extending to a position greater than or equal to 2.5 times the diameter of the horizontal drain pipe 3. The PRC controller 16, the wireless remote control device 17, the air pump 7, the two electromagnetic check valves 12 and 15, the infrared sensor 18, and the liquid level sensor 19 are electrically connected, realizing automation and remote control. The infrared sensor 18 is used to detect the amount of dirt on the inner wall of the horizontal drain pipe 3, and the liquid level sensor 19 installed on the horizontal drain pipe 3 is used to detect the sewage level inside the horizontal drain pipe 3. When dirt accumulation or abnormal water level is detected, a detection signal is transmitted to the PRC controller 16. The PRC controller 16 then issues commands to control the air pump 7, the two electromagnetic check valves 12 and 15, automatically initiating the cleaning program to clean the pipe components in the building. This eliminates the need for frequent manual inspections and operations. It should be noted that the PRC controller 16 is set to operate periodically or on a timer. The wireless remote control device 17 has wireless transmission capabilities and can interact with signals via a mobile app. It can operate outside the set work cycle without affecting the preset work cycle, thus cleaning the pipe components. The temporary contamination within the device is controlled by the PRC controller 16 through the control of the air pump 7, the two electromagnetic check valves 12, and the electromagnetic check valve 15. The control circuit of the PRC controller 16 can be easily programmed by those skilled in the art. The electrical connection and control methods of the air pump 7, the two electromagnetic check valves 12, the electromagnetic check valve 15, the PRC controller 16, and the wireless remote control device 17, as well as the electrical connection and control methods of the infrared detection sensor 18, the liquid level sensor 19, and the PRC controller 16, are mature technologies in the field and are not fully disclosed here. Therefore, they will not be described in detail here.

[0040] In this embodiment, a maintenance channel is fixedly installed on the vertical drain pipe 1. A plug is threaded onto the top of the maintenance channel to facilitate the inspection and maintenance of the interior of the vertical drain pipe 1. The plug effectively seals the top port of the maintenance channel when maintenance is not required, preventing odors and sewage leakage.

[0041] In this embodiment, it should be further explained that the reducing pipe 11 is called a "convergent-divergent" nozzle, also known as a "Laval nozzle," and its working principle is as follows:

[0042] Converging section: The high-speed water flow first passes through a region whose inner diameter gradually narrows. This region is called the convergent section. Here, the speed of the water flow increases while the pressure and temperature decrease. This process is based on the principles of fluid mechanics, namely the conservation of mass and Bernoulli's principle.

[0043] Throat: After the converging section comes the throat of the lumen, which is the narrowest part of the lumen, where the water flow reaches a very high velocity;

[0044] Diverging section: Beyond the throat, the inner diameter of the tube gradually widens, forming a diverging section. In this area, the water flow accelerates further, the pressure continues to decrease, and the velocity continues to increase. This process allows the water flow to reach extremely high speeds when it is ejected, thereby generating a greater impact force.

[0045] In the converging section, the convergence half-angle refers to the angle between the inner wall of the converging section pipe and the axis. This angle is usually between 5° and 15° to avoid flow separation and loss. The length of the converging section depends on the change in inner diameter and the required velocity distribution. The length usually needs to be determined by calculation or experiment to ensure a smooth transition of the flow to the throat. In the throat, the throat diameter is the narrowest part of the lumen, and its diameter determines the maximum velocity and pressure ratio. The throat diameter is determined by design requirements to achieve specific performance targets. In the diverging section, the divergence half-angle refers to the angle between the inner wall of the diverging section pipe and the axis. This angle is usually between 10° and 25° to optimize water flow acceleration. The expansion ratio is the ratio of the outlet area of ​​the lumen to the throat area, usually represented by ε. The expansion ratio determines the degree of fluid expansion in the lumen and the final outlet velocity. For liquids, the expansion ratio is mostly between 20 and 45.

[0046] Based on the above structure, the working principle of the building drainage pipe self-cleaning system provided in this application is as follows:

[0047] During the discharge of domestic sewage generated in the building, infrared detector 18 continuously monitors whether there is any foreign object accumulation in the horizontal drain pipe 3, and liquid level sensor 19 monitors the sewage level in the horizontal drain pipe 3 in real time. Once infrared detector 18 detects foreign objects or liquid level sensor 19 detects an abnormal rise in water level, these signals are immediately transmitted to PRC controller 16. After receiving the signal, PRC controller 16 issues an instruction to start air pump 7 according to a preset program, and simultaneously controls the opening of two electromagnetic check valves 12 and 15. After pump 7 starts, it compresses air and injects it into pressure tank 5, increasing the air pressure inside pressure tank 5. When water storage tank 6 needs high-pressure water flow, the compressed air in pressure tank 5 enters water storage tank 6 through air delivery pipe 9, creating pressure on the water in water storage tank 6. This causes the water to flow through water delivery pipe 10 to reducer pipe 11. After the water enters reducer pipe 11, it is further pressurized under the action of reducer pipe cavity 112 of pipe body 111 and sprayed out at high speed from high-pressure nozzle 113. The powerful high-pressure water flow impacts the dirt in tee pipe 2, vertical drain pipe 1 and horizontal drain pipe 3, washing it away and achieving self-cleaning of the pipes, keeping the drainage unobstructed.

[0048] In addition, users can also send signals through a pre-designed mobile APP. The wireless remote control device 17 receives the remotely sent instructions and then transmits them to the PRC controller 16, which can then remotely start the cleaning process.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A building sewer self-cleaning system, characterized by, The system includes a pipe assembly and a water pressure assembly. The pipe assembly includes a vertical drain pipe (1), a tee pipe (2), and a horizontal drain pipe (3). One end of the vertical drain pipe (1) is fixedly connected to one of the inlet ports of the tee pipe (2), and one end of the horizontal drain pipe (3) is fixedly connected to the outlet port of the tee pipe (2). The water pressure assembly is located on one side of the tee pipe (2) and is used to clean dirt inside the pipe assembly. The water pressure assembly includes a base plate (4), a pressure tank (5), a water storage tank (6), an air pump (7), an air supply pipe (8), an air delivery pipe (9), a water delivery pipe (10), and a reducer pipe (5). 11) The base plate (4) is located on the side of the three-way pipe (2) away from the horizontal drain pipe (3). The pressure tank (5) and the water storage tank (6) are both fixedly installed on the top of the base plate (4). The air outlet of the air pump (7) is fixedly connected to the air inlet of the pressure tank (5). One end of the air supply pipe (9) is fixedly connected to the air outlet of the pressure tank (5). The other end of the air supply pipe (9) is fixedly connected to the water storage tank (6). The water supply pipe (10) is fixedly connected to the drain end of the water storage tank (6). The reducing pipe (11) is set between the water supply pipe (10) and the three-way pipe (2).

2. A building drain self-cleaning system according to claim 1, wherein: The reducing pipe (11) includes a pipe body (111) and a high-pressure nozzle (113). One end of the pipe body (111) is fixedly connected to the end of the water supply pipe (10) away from the water storage tank (6). A reducing pipe cavity (112) is provided inside the pipe body (111). The high-pressure nozzle (113) is fixedly connected to the other end of the pipe body (111). One end of the high-pressure nozzle (113) is fixedly connected to the other water inlet port of the three-way pipe (2).

3. A building drain self-cleaning system according to claim 2, wherein: The high-pressure nozzle (113) has a single-hole nozzle or a multi-hole nozzle and is equipped with a conversion device.

4. A building drain self-cleaning system according to claim 1, wherein: Electromagnetic check valve one (12) is fixedly installed on both the gas supply pipe (8) and the gas delivery pipe (9), and electromagnetic check valve two (15) is fixedly installed on the water delivery pipe (10).

5. A building sewer self-cleaning system according to claim 1, wherein: A pressure gauge (13) is fixedly installed on the top of the pressure tank (5).

6. A building drain self-cleaning system according to claim 1, wherein: A water supply pipe (14) is fixedly installed on the top of the water storage tank (6), and a water supply valve is fixedly installed on the water supply pipe (14).

7. A building drain self-cleaning system according to claim 6, wherein: A PRC controller (16) and a wireless remote control device (17) are fixedly installed on the outer wall of the water storage tank (6). The air pump (7), two electromagnetic check valves (12), electromagnetic check valve (15), PRC controller (16) and wireless remote control device (17) are electrically connected.

8. A building drain self-cleaning system according to claim 7, wherein: An infrared detector (18) and a liquid level sensor (19) are fixedly installed on the horizontal drain pipe (3). The detection end of the infrared detector (18) and the detection end of the liquid level sensor (19) are both located inside the horizontal drain pipe (3). The infrared detector (18) and the liquid level sensor (19) are both electrically connected to the PRC controller (16).

9. A building drain self-cleaning system according to claim 8, wherein: The liquid level sensor is installed inside the vertical downcomer (1) at a position greater than or equal to 2.5 times the diameter of the horizontal downcomer (3) from the top of the upper wall of the horizontal downcomer (3).

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