Indoor simulation device for urban waste water supply pipeline filling

Abstract

The utility model belongs to the technical field of urban waste water supply pipeline treatment, and particularly relates to an indoor simulation device for urban waste water supply pipeline filling. The system comprises an urban waste water supply pipeline which is provided with a grouting port; a grouting material containing a curing agent is stored in the storage barrel; a material injection opening in one side of the stirring mechanism is communicated with the material storage barrel, a material outlet in the other side of the stirring mechanism is communicated with a grouting opening of the urban waste water supply pipeline through a grouting pipe, and a grouting pump is arranged on the grouting pipe; a water outlet of the water tank is communicated with a water inlet of the stirring mechanism. The indoor simulation device is high in practicability, easy to implement and capable of being used for filling large urban waste water supply pipelines in the future; meanwhile, the device provides support for solving the problems of excavation and backfilling and surface collapse in actual engineering, the simulation characteristic of the device assists technical research and optimization, and development of the urban waste water supply pipeline treatment technology is powerfully promoted.

Description

Technical Field

[0001] This utility model belongs to the field of urban abandoned water supply pipeline treatment technology, specifically relating to an indoor simulation device for filling urban abandoned water supply pipelines. Background Technology

[0002] With the continuous development of urbanization in my country, underground pipelines have been widely used in many fields, with water supply pipelines accounting for a significant portion of urban underground pipe networks. According to data from the National Bureau of Statistics, the current length of urban water supply pipelines nationwide reaches 1.103 million kilometers, and the length of drainage pipelines reaches 913,500 kilometers. However, after underground pipelines reach their service life, the pipe materials begin to enter a period of high incidence of accidents due to problems such as corrosion, aging, and deformation.

[0003] The potential risk of ground subsidence due to structural damage from abandoned pipelines is extremely high. In recent years, ground subsidence accidents caused by pipeline structural damage have occurred frequently. These accidents not only threaten the safety of people and property, but also pose a serious threat to surrounding buildings.

[0004] Currently, how to dispose of abandoned urban pipelines is a major challenge facing the municipal sector. Research on pipeline disposal is still in its early stages both domestically and internationally, and unified national regulations and industry standards have not yet been established. At present, the mainstream methods for disposing of abandoned pipelines are in-situ abandonment and excavation and backfilling. However, both methods have significant drawbacks: in-situ abandonment carries the risk of ground subsidence due to pipeline structural damage, and regular pipeline inspections and monitoring require substantial manpower and resources; excavation and backfilling is not only costly and time-consuming, but also faces numerous obstacles when carried out in urban areas.

[0005] Based on this, a novel indoor simulation device for filling abandoned urban water supply pipes has been developed in this utility model to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an indoor simulation device for filling abandoned urban water supply pipelines. This indoor simulation device is highly practical, simple to implement, and can be used for filling large-scale abandoned urban water supply pipelines in the future. At the same time, this device provides support for solving the problems of excavation and backfilling and ground subsidence in actual engineering projects. Its simulation characteristics help technical research and optimization, and strongly promote the development of urban abandoned water supply pipeline treatment technology.

[0007] This utility model adopts the following technical solution: an indoor simulation device for filling abandoned urban water supply pipes, comprising:

[0008] Abandoned urban water supply pipeline, wherein the abandoned urban water supply pipeline has a grouting port;

[0009] A storage tank containing grouting material with a curing agent;

[0010] The mixing mechanism has a material inlet on one side connected to the storage tank, and a material outlet on the other side connected to the grouting port of the abandoned urban water supply pipeline via a grouting pipe. A grouting pump is installed on the grouting pipe.

[0011] A water tank, the outlet of which is connected to the inlet of the stirring mechanism.

[0012] Furthermore, a pressure gauge and a check valve are installed at the grout inlet of the grouting pump.

[0013] Furthermore, the grouting pipe is divided into a grout delivery pipe section and a grouting pipe section;

[0014] The grouting pipe section has one end connected to the discharge port on the other side of the mixing mechanism and the other end connected to the grout inlet of the grouting pump; the grouting pipe section has one end connected to the pump port of the grouting pump and the other end connected to the grouting port of the abandoned urban water supply pipeline; the grouting pipe section is made of steel wire rubber hose.

[0015] Furthermore, one end of the grouting pipe section is connected to the grouting pump port of the grouting pump via a clamp.

[0016] Furthermore, the inner diameter of the grouting pipe section is 10cm to 15cm, and the wall thickness is 0.5cm to 1cm; the inner diameter of the grout delivery pipe section is 20cm to 25cm, and the wall thickness is 0.5cm to 1cm.

[0017] Furthermore, the stirring mechanism includes a stirring tank body, a stirrer disposed on the top of the stirring tank body, a stirring shaft vertically disposed within the stirring tank body, and at least two sets of stirring blades vertically spaced on the stirring shaft; the stirring shaft is connected to the output end of the stirrer for transmission, driving the stirring shaft to rotate.

[0018] Furthermore, a drain outlet is provided at the bottom of the mixing tank.

[0019] Furthermore, the water inlet of the stirring mechanism is located at the top of the stirring tank.

[0020] Furthermore, the discharge port of the stirring mechanism is located at the bottom of the stirring tank.

[0021] Furthermore, two sets of the stirring mechanism are arranged side by side.

[0022] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0023] This utility model presents an indoor simulation device for filling abandoned urban water supply pipelines. Although it is an experimental device, it lays the theoretical and technical foundation for actual construction. Firstly, it eliminates the need for large-scale road excavation, avoiding the extensive damage to the road surface caused by traditional excavation and backfilling, thus reducing the construction scope and minimizing the impact on the surrounding environment. Secondly, the device has a simple structure, consisting of a storage tank, a mixing mechanism, a water tank, and a grouting pump. Each part has a clear division of labor and works closely together, making the operation process simple and greatly reducing the difficulty of construction. Thirdly, it does not disrupt road traffic and enables rapid and efficient grouting and filling of abandoned water supply pipelines. Fourthly, grouting and filling can reinforce the pipeline structure and prevent ground subsidence caused by pipeline damage.

[0024] Meanwhile, the various components of the device work together to form an organic whole, reducing equipment connection and coordination problems and improving construction efficiency. Furthermore, by controlling the grouting pump, the grout delivery pressure and flow rate can be precisely adjusted, facilitating automated control and improving construction accuracy.

[0025] In addition, this device provides a good experimental platform for studying the filling of abandoned urban water supply pipelines. It can study the filling effect under different grouting materials, pipeline conditions and grout ratios in the laboratory, optimize the grouting process, improve the scientific nature and reliability of the technology, and reserve technology and provide optimized solutions for actual engineering projects.

[0026] In summary, the indoor simulation device for filling abandoned urban water supply pipelines described in this invention is highly practical, simple to implement, and can be used for filling abandoned urban water supply pipelines in the future. This device provides support for solving the problems of excavation and backfilling and ground subsidence in actual engineering projects. Its simulation characteristics contribute to technical research and optimization, and strongly promote the development of urban abandoned water supply pipeline treatment technology. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an indoor simulation device for filling abandoned urban water supply pipes in a specific embodiment of this utility model.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure after removing abandoned urban water supply pipes;

[0030] Figure 3 for Figure 1 Schematic diagram of the stirring mechanism;

[0031] In the diagram: 1. Abandoned urban water supply pipeline; 2. Storage tank; 3. Mixing mechanism; 30. Discharge port; 31. Water inlet; 32. Mixing tank body; 33. Mixer; 34. Mixing shaft; 35. Mixing blades; 36. Drainage outlet; 4. Grouting pipe; 40. Grouting pipe section; 41. Grouting pipe section; 5. Grouting pump; 6. Water tank; 7. Clamps. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 The present invention will be described in detail with specific embodiments:

[0034] like Figures 1 to 3 As shown, this utility model provides an indoor simulation device for filling abandoned urban water supply pipes, which includes:

[0035] Abandoned urban water supply pipeline 1, wherein the abandoned urban water supply pipeline 1 has a grouting port as a channel for grout injection, simulating the filling object of an actual abandoned water supply pipeline;

[0036] Storage tank 2, which stores grouting material containing curing agent, provides key raw materials for filling operations;

[0037] The mixing mechanism 3 has a material inlet on one side connected to the storage tank 2, allowing the grouting material in the storage tank 2 to smoothly enter the mixing mechanism 3; the discharge port 30 on the other side of the mixing mechanism 3 is connected to the grouting port of the urban waste water supply pipeline 1 through the grouting pipe 4, and the grouting pipe 4 is equipped with a grouting pump 5; by controlling the operation of the grouting pump 5, the delivery pressure and flow rate of the grout can be precisely adjusted to ensure that the grout is injected into the urban waste water supply pipeline 1 evenly and in appropriate amounts;

[0038] Water tank 6, whose outlet is connected to the inlet 31 of the mixing mechanism 3, is responsible for supplying the mixing mechanism 3 with the water required for preparing the filling slurry. Inside the mixing mechanism 3, the water and the grouting material are thoroughly mixed to form a slurry that meets the filling requirements.

[0039] This utility model presents an indoor simulation device for filling abandoned urban water supply pipelines. Although it is an experimental device, it lays the theoretical and technical foundation for actual construction. Firstly, it eliminates the need for large-scale road excavation, avoiding the extensive damage to the road surface caused by traditional excavation and backfilling, thus reducing the construction scope and minimizing the impact on the surrounding environment. Secondly, the device has a simple structure, consisting of a storage tank 2, a mixing mechanism 3, a water tank 6, and a grouting pump 5. Each part has a clear division of labor and works closely together, making the operation process simple and greatly reducing the difficulty of construction. Thirdly, it does not affect road traffic and can achieve rapid and efficient grouting filling of abandoned water supply pipelines. Fourthly, grouting filling can reinforce the pipeline structure and prevent ground subsidence caused by pipeline damage.

[0040] Meanwhile, the various components of the device work together to form an organic whole, reducing equipment connection and coordination problems and improving construction efficiency. Furthermore, by controlling the grouting pump 5, the grout delivery pressure and flow rate can be precisely adjusted, facilitating automated control and improving construction accuracy.

[0041] In addition, this device provides a good experimental platform for studying the filling of abandoned urban water supply pipelines. It can study the filling effect under different grouting materials, pipeline conditions and grout ratios in the laboratory, optimize the grouting process, improve the scientific nature and reliability of the technology, and reserve technology and provide optimized solutions for actual engineering projects.

[0042] In summary, the indoor simulation device for filling abandoned urban water supply pipelines described in this invention is highly practical, simple to implement, and can be used for filling abandoned urban water supply pipelines in the future. This device provides support for solving the problems of excavation and backfilling and ground subsidence in actual engineering projects. Its simulation characteristics contribute to technical research and optimization, and strongly promote the development of urban abandoned water supply pipeline treatment technology.

[0043] Furthermore, in some specific embodiments, a pressure gauge and a check valve (not shown in the figure) are provided at the pump inlet of the grouting pump 5. It should be noted that the present invention does not specifically limit the model of the pressure gauge and check valve, etc., and those skilled in the art can design and select them according to the actual situation.

[0044] The pressure gauge displays real-time pressure data during the grouting process, allowing operators to intuitively understand the current grouting pressure. Observing the pressure gauge reading helps determine if grouting is proceeding normally, providing crucial data for construction. It also prevents problems such as pipe rupture and grout leakage due to excessive pressure, or inadequate grout filling due to insufficient pressure, ensuring construction safety and smooth progress. Furthermore, the pressure gauge allows operators to adjust the operating parameters of the grouting pump 5 as needed, ensuring the pressure remains within a suitable range throughout the grouting process. This guarantees sufficient grout filling of the pipe, improving the quality and effectiveness of the grouting.

[0045] The main function of the check valve is to allow the grout to flow in only one direction, from the grouting pump 5 to the abandoned municipal water supply pipeline 1, while preventing the grout from flowing back into the grouting pump 5 or other upstream equipment when the grouting pump 5 stops working or when there are pressure fluctuations. This helps maintain pressure stability within the grouting system and avoids sudden pressure drops caused by grout backflow, which would affect the grouting effect. Furthermore, the presence of the check valve ensures the continuity and stability of the grouting process, eliminating concerns about grout backflow, reducing construction interruptions and repetitive operations caused by grout backflow, improving construction efficiency, extending the service life of the grouting equipment, and reducing equipment maintenance and replacement costs.

[0046] In a more specific embodiment, the grouting pipe 4 is divided into a grout delivery pipe section 40 and a grouting pipe section 41.

[0047] In this embodiment, one end of the grout delivery pipe section 40 is connected to the discharge port 30 on the other side of the mixing mechanism 3, and the other end is connected to the grout inlet of the grouting pump 5; one end of the grouting pipe section 41 is connected to the pumping port of the grouting pump 5, and the other end is connected to the grouting port of the abandoned urban water supply pipeline 1. The grouting pipe section 41 is made of steel wire hose. In this embodiment, the inner diameter of the grouting pipe section 41 is 10cm to 15cm, and the wall thickness is 0.5cm to 1cm; the inner diameter of the grout delivery pipe section 40 is 20cm to 25cm, and the wall thickness is 0.5cm to 1cm. The grout delivery pipe section 40 is made of steel pipe. Meanwhile, one end of the grouting pipe section 41 is connected to the pumping port of the grouting pump 5 via a clamp 7 to achieve a good seal and ensure that the grout does not leak during transmission.

[0048] The grouting pipe 4 is divided into a grout delivery section 40 and a grouting section 41 for segmented installation, facilitating maintenance and replacement. Unlike integrated grouting pipes, it eliminates the need for comprehensive pipeline inspection, reducing maintenance time and costs. Furthermore, the steel wire hose possesses a degree of flexibility and elasticity. This flexibility is crucial when inserting the grouting pipe 4 into the abandoned urban water supply pipeline 1. The abandoned urban water supply pipeline 1 may be located at varying depths and locations underground, and its path may not be straight. The steel wire hose can bend more easily and adapt to different paths, facilitating insertion and placement, thus better adapting to complex underground environments.

[0049] Furthermore, in some specific embodiments, such as Figure 3As shown, the mixing mechanism 3 includes a mixing tank 32, a mixer 33 disposed on the top of the mixing tank 32, a mixing shaft 34 vertically disposed within the mixing tank 32, and at least two sets of mixing blades 35 vertically spaced on the mixing shaft 34. The mixing shaft 34 is connected to the output end of the mixer 33, driving the mixing shaft 34 to rotate, which in turn drives the mixing blades 35 to rotate, ensuring that the grouting material and water are fully agitated and mixed within the entire mixing tank 32, improving the uniformity and efficiency of the mixing, and ensuring the formation of a uniform slurry that meets the filling requirements. In this embodiment, the mixing tank 32 is made of high-strength steel, with a wall thickness of approximately 1.0 cm to 1.5 cm.

[0050] In this embodiment, two sets of mixing mechanisms 3 are arranged side by side. The two sets of mixing mechanisms 3 can simultaneously mix different batches of slurry. Compared to a single set of mixing mechanisms, more slurry can be produced in the same amount of time, greatly improving overall production efficiency and meeting the needs of large-scale grouting operations. Furthermore, once one set of mixing mechanisms 3 has finished mixing and discharging, the other set can be put into use immediately, without waiting for the previous set to complete cleaning and preparation before mixing the next batch. This reduces time wasted due to equipment idleness, making the entire grouting process more compact and efficient. In addition, if one set of mixing mechanisms 3 malfunctions and requires repair or maintenance, the other set can continue working, ensuring the continuity of grouting operations and preventing the entire project from stalling due to a single set of equipment failure. This reduces the impact on construction progress and improves the reliability and stability of the system.

[0051] Furthermore, in some specific embodiments, the bottom of the mixing tank 32 is provided with a drain outlet 36. After use, the cleaning water can be easily discharged from the mixing tank 32 through the drain outlet 36. Whether rinsing residual grouting material on the tank wall or cleaning debris from the mixing blades 35 and the bottom of the tank, it ensures that the cleaning water is quickly drained, avoiding wastewater residue from affecting the next use, ensuring the cleanliness of the inside of the mixing tank 32, and extending its service life. At the same time, if excessive water is added during the preparation of the slurry, the excess water can be appropriately discharged through the drain outlet 36 to accurately control parameters such as the water-cement ratio of the slurry, ensuring that the slurry meets the performance indicators required for filling, and improving the accuracy and repeatability of the experiment.

[0052] Furthermore, in some specific embodiments, the water inlet 31 of the stirring mechanism 3 is located at the top of the stirring tank 32. With the water inlet 31 at the top, water can be sprayed evenly from the top onto the material inside the stirring tank 32, causing the water to flow downwards under gravity. This creates a certain convection with the material flow direction pushed by the stirring blades 35, increasing the relative speed and shear force between the materials. This helps to break up material agglomerates, making the mixing more thorough and further improving the mixing effect. Especially for some grouting materials with high viscosity, this convection can effectively improve the intensity and effect of the mixing.

[0053] The discharge port 30 of the stirring mechanism 3 is located at the bottom of the stirring tank 32. With the discharge port 30 at the bottom, the stirred slurry can flow out automatically under the action of gravity, without the need for additional power to overcome gravity and lift the slurry to a higher position for discharge, thus reducing energy consumption and lowering the risk of failure that may be caused by using additional power equipment.

[0054] The construction method for the indoor simulation device used to fill abandoned urban water supply pipes, as described above, generally involves the following steps:

[0055] 1. Preliminary Planning: Based on the actual location and dimensions of the abandoned urban water supply pipeline 1, determine the location of the grouting boreholes. Simultaneously, based on the specific conditions of the pipeline, calculate the length range of the grouting pipe 4 and the required grout volume.

[0056] 2. Drilling Operation: After completing the survey of the abandoned urban water supply pipeline 1 and determining the drilling locations, the drilling equipment will be brought in. Grouting holes will be drilled according to the predetermined locations, ensuring the accuracy of the drilling positions.

[0057] 3. Equipment Connection and Grout Preparation: After the borehole layout is completed, the grouting pipe section 41 is inserted into the borehole and fixed. One end of the grouting pipe section 41 extends into the abandoned urban water supply pipe 1, and the other end is connected to the grouting pump port 5 with a pressure one-way valve via a clamp 7. One end of the grout delivery pipe section 40 is connected to the discharge port 30 of the mixing tank 32, and the other end is connected to the grout inlet of the grouting pump 5. The grouting material containing the curing agent is prepared according to the ratio in the storage tank 2 and transported to the mixing tank 32. The top of the mixing tank 32 is provided with a water inlet 30, through which water from the water tank 5 enters and is fully mixed with the grouting material in the mixing tank 32. The mixing tank is equipped with a mixer 33, a mixing shaft 34, and at least two sets of vertically spaced mixing blades 35. The mixer 33 drives the mixing shaft 34 to rotate, which in turn drives the mixing blades 35 to rotate, so that the grouting material and water are fully agitated to form a uniform grout to be filled. Subsequently, the grout is pumped into the grouting pump 5 using the grouting pipe section 40 of the grouting pipe 4.

[0058] 4. Grouting and Filling: Turn on the grouting pump 5. The grouting pump 5 draws grout from the discharge port 30 of the mixing tank 32 at a certain pressure and flow rate, and pumps it out from the grout outlet, injecting it into the urban abandoned water supply pipeline 1 through the grouting pipe section 41 of the grouting pipe 4. During this process, the pressure gauge at the grout outlet displays the grouting pressure in real time. The operator can judge whether the grouting is normal based on the pressure data. If the pressure is abnormal, the grouting pump parameters can be adjusted in time. The one-way valve ensures that the grout flows in one direction and prevents backflow. After the urban abandoned water supply pipeline 1 is completely filled, the grouting pipe section 41 of the grouting pipe 4 is pulled out, the filled urban abandoned water supply pipeline 1 is sealed, and finally the equipment is withdrawn. This completes the grouting and filling work of the urban abandoned water supply pipeline 1.

[0059] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. An indoor simulation device for filling abandoned urban water supply pipes, characterized in that: It includes: Abandoned urban water supply pipeline, wherein the abandoned urban water supply pipeline has a grouting port; A storage tank containing grouting material with a curing agent; The mixing mechanism has a material inlet on one side connected to the storage tank, and a material outlet on the other side connected to the grouting port of the abandoned urban water supply pipeline via a grouting pipe. A grouting pump is installed on the grouting pipe. A water tank, the outlet of which is connected to the inlet of the stirring mechanism.

2. The indoor simulation device for filling abandoned urban water supply pipes according to claim 1, characterized in that: A pressure gauge and a check valve are installed at the grout inlet of the grouting pump.

3. The indoor simulation device for filling abandoned urban water supply pipes according to claim 2, characterized in that: The grouting pipe is divided into a grout delivery pipe section and a grouting pipe section; The grouting pipe section has one end connected to the discharge port on the other side of the mixing mechanism and the other end connected to the grout inlet of the grouting pump; the grouting pipe section has one end connected to the pump port of the grouting pump and the other end connected to the grouting port of the abandoned urban water supply pipeline; the grouting pipe section is made of steel wire rubber hose.

4. The indoor simulation device for filling abandoned urban water supply pipes according to claim 3, characterized in that: One end of the grouting pipe section is connected to the grouting pump port of the grouting pump via a clamp.

5. The indoor simulation device for filling abandoned urban water supply pipes according to claim 3, characterized in that: The inner diameter of the grouting pipe section is 10cm to 15cm, and the wall thickness is 0.5cm to 1cm; the inner diameter of the grout delivery pipe section is 20cm to 25cm, and the wall thickness is 0.5cm to 1cm.

6. The indoor simulation device for filling abandoned urban water supply pipes according to claim 1, characterized in that: The stirring mechanism includes a stirring tank, a mixer mounted on top of the stirring tank, a stirring shaft vertically mounted inside the stirring tank, and at least two sets of stirring blades vertically spaced on the stirring shaft; the stirring shaft is connected to the output end of the mixer to drive the stirring shaft to rotate.

7. The indoor simulation device for filling abandoned urban water supply pipes according to claim 6, characterized in that: The bottom of the mixing tank is provided with a drain outlet.

8. The indoor simulation device for filling abandoned urban water supply pipes according to claim 6, characterized in that: The water inlet of the stirring mechanism is located at the top of the stirring tank.

9. The indoor simulation device for filling abandoned urban water supply pipes according to claim 6, characterized in that: The discharge port of the stirring mechanism is located at the bottom of the stirring tank.

10. The indoor simulation device for filling abandoned urban water supply pipes according to any one of claims 1 to 9, characterized in that: The stirring mechanism is arranged in two sets side by side.

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