Prefabricated reclaimed water branch node drainage pipeline

Abstract

The utility model discloses a kind of assembled reclaimed water branch node drainage pipelines, it is related to reclaimed water utilization and water supply and drainage pipeline field, including branch node drainage pipeline body and the assembly butt flange A being set in the left end outside branch node drainage pipeline body, the assembly butt flange B is arranged in the right end outside branch node drainage pipeline body, and assembly butt flange A and assembly butt flange B shape size are same, by increasing novel stress deformation resistance device outside branch node drainage pipeline body, the device is with multiple groups of glass steel fixed sleeve and connecting screw as core, construct the rigid support and stress dispersion system of all directions, can effectively resist the stress deformation generated by water pressure fluctuation, temperature change, soil settlement of pipeline, ensure that branch node drainage pipeline keeps structure stable and water delivery unobstructed for a long time, while strengthen the adaptability of pipeline and surrounding installation structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of reclaimed water utilization and water supply and drainage pipelines, specifically relating to a prefabricated reclaimed water branch node drainage pipeline. Background Technology

[0002] Prefabricated reclaimed water branch node drainage pipes are key modular components in reclaimed water transmission networks. They are mainly used at branch nodes of reclaimed water (such as municipal greywater and industrial circulating water) networks to achieve rapid connection and flow distribution between main and branch pipes. They adopt a factory-prefabricated core component (such as pipe body, connecting flange, and seal) and on-site assembly mode. Compared with traditional on-site cast-in-place or welded branch node pipes, they significantly shorten the construction cycle and improve sealing reliability. They are suitable for the characteristics of reclaimed water containing impurities and requiring long-term stable transportation. They are widely used in scenarios such as municipal reclaimed water utilization, industrial park water circulation, and residential community greywater systems. They are important equipment for promoting the efficiency and standardization of reclaimed water network construction.

[0003] However, existing reclaimed water branch node pipelines are under complex operating conditions for a long time. Internally, they must withstand water pressure fluctuations during reclaimed water transportation (such as a sudden increase in pressure during peak water usage periods), and externally, they are subjected to external forces generated by soil compression, ground subsidence (especially in municipal road underground pipe networks) or temperature changes (summer sun exposure, winter low temperatures). These forces can cause radial expansion, axial bending, or local dents in the pipeline body. Traditional prefabricated pipelines mostly rely on the strength of their own pipe walls to resist deformation. When the stress exceeds the bearing limit of the pipe wall, problems such as pipe cracking and flange misalignment are prone to occur, leading to reclaimed water leakage and affecting the water transportation efficiency of the pipeline network. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated reclaimed water branch node drainage pipe to solve the problems mentioned in the background art. The existing reclaimed water branch node pipes are subject to complex working conditions, internal pressure fluctuations of reclaimed water, and external soil compression, settlement or temperature changes, which easily cause radial expansion, axial bending and other deformations. Traditional prefabricated pipes rely only on the pipe wall to resist deformation, and are prone to cracking and flange misalignment leakage when stress exceeds the limit, thus affecting water delivery efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated reclaimed water branch node drainage pipe, comprising a branch node drainage pipe body and an assembly docking flange A disposed on the outer side of the left end of the branch node drainage pipe body, an assembly docking flange B disposed on the outer side of the right end of the branch node drainage pipe body, and the assembly docking flange A and the assembly docking flange B having the same shape and size, and an anti-stress deformation device disposed on the circular outer wall of the branch node drainage pipe body.

[0006] Preferably, the stress deformation resistant device includes multiple fiberglass fixing sleeves, which are equidistantly fitted onto the outside of the branch node drainage pipe body, and the fiberglass fixing sleeves are fixedly connected to the branch node drainage pipe body by adhesive. The thickness of the fiberglass fixing sleeves is less than the thickness of the branch node drainage pipe body.

[0007] Preferably, the stress-resistant deformation device further includes connecting block A, connecting block B, connecting block C, and screw through holes. Connecting block A is integrally formed on the outer wall of the top of each of the multiple fiberglass fixing sleeves. Connecting block B and connecting block C are integrally formed on the outer walls of the lower left and right ends of the center of each of the multiple fiberglass fixing sleeves. The connecting blocks A, B, and C on the outer wall of each fiberglass fixing sleeve are arranged in an equilateral triangle angle. Screw through holes are opened inside each of the multiple connecting blocks A, B, and C.

[0008] Preferably, the stress-resistant deformation device further includes connecting screws and position-locking double nuts. A connecting screw is inserted into the screw holes inside the multiple connecting blocks A, multiple connecting blocks B, and multiple connecting blocks C, and multiple sets of position-locking double nuts are threaded onto the outside of each connecting screw.

[0009] Preferably, each of the multiple sets of position locking double nuts includes two separate position locking nuts, and the two separate position locking nuts in each set of position locking double nuts are respectively clamped at the left and right ends of the connecting block A, the left and right ends of the connecting block B, and the left and right ends of the connecting block C at the corresponding positions.

[0010] Preferably, after all the locking nuts at multiple positions on the outside of the connecting screw are tightened, the connecting screw can connect multiple connecting blocks A, multiple connecting blocks B, and multiple connecting blocks C into a whole.

[0011] Preferably, rubber sealing gaskets are provided on the outer wall of the left end of the assembly flange A and the outer wall of the right end of the assembly flange B, and the rubber sealing gaskets are flush with the circular outer walls of the assembly flange A and the assembly flange B.

[0012] Preferably, the inner circular wall of the assembly flange B is fitted with a main pipe fitting sleeve, and the left end of the main pipe fitting sleeve is integrally formed and connected to the right end of the branch node drainage pipe body. After the assembly flange B is connected to the main drainage pipe, the main pipe fitting sleeve is inserted into the pipe opening of the main drainage pipe.

[0013] Preferably, the branch node drainage pipe body is provided with concrete support blocks near the bottom of both ends, and the outer wall of the top of the concrete support block is provided with a downward arc-shaped groove, and the groove is closely fitted to the arc-shaped outer wall of the bottom end of the branch node drainage pipe body.

[0014] Compared with the prior art, this utility model provides a prefabricated reclaimed water branch node drainage pipe, which has the following beneficial effects:

[0015] This invention adds a novel stress-deformation resistant device to the outside of the drainage pipe body at a branch node. This device, centered on multiple sets of fiberglass fixing sleeves and connecting bolts, constructs a comprehensive rigid support and stress dispersion system. It effectively resists stress deformation caused by water pressure fluctuations, temperature changes, and soil settlement, ensuring the long-term structural stability and smooth water flow of the drainage pipe at the branch node. Simultaneously, it enhances the compatibility of the pipe with surrounding installation structures. This stress-deformation resistant device forms a multi-directional rigid support through a specific structural design. Multiple equidistant fiberglass fixing sleeves, fitted onto the outside of the pipe body, possess high strength, directly enhancing the bending resistance of the pipe's outer wall. Meanwhile, the connecting bolts connect multiple fiberglass fixing sleeves into a whole through connecting blocks A, B, and C, forming a triangular support frame structure along the pipe's axial direction. This frame can apply rigid constraints to the pipe from the top and bottom, left and right directions, preventing overall deformation such as radial expansion and axial bending caused by internal water pressure changes or external soil compression. This ensures the pipe always maintains a circular cross-section and does not affect the water flow rate.

[0016] When the pipeline is subjected to local stress, the fiberglass fixing sleeve can transfer the local stress to connecting block A, connecting block B, and connecting block C, and then distribute it to all fiberglass fixing sleeves through the connecting screw. At the same time, the double locking nuts on the outside of the connecting screw (clamping the two ends of the connecting block) can fix the position of each connection point, avoiding stress concentration on a certain connecting block or fiberglass fixing sleeve, effectively reducing the risk of cracking and damage to the pipeline caused by excessive local stress, and extending the service life of the pipeline. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of a prefabricated reclaimed water branch node drainage pipe according to the present invention.

[0018] Figure 2 This is a front view schematic diagram of a prefabricated reclaimed water branch node drainage pipe according to the present invention.

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the stress-resistant deformation device of this utility model.

[0020] Figure 4 This is a partial three-dimensional structural diagram of the stress-resistant deformation device of this utility model.

[0021] In the diagram: 1. Assembly flange A; 2. Branch node drainage pipe body; 3. Stress-resistant deformation device; 4. Assembly flange B; 5. Main pipe connection sleeve; 6. Rubber sealing gasket; 7. Concrete placement block; 8. Fiberglass fixing sleeve; 9. Connecting block A; 10. Connecting block B; 11. Connecting block C; 12. Connecting bolt; 13. Position locking double nut; 14. Bolt through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-4 The diagram illustrates a prefabricated reclaimed water branch node drainage pipe. The core water conveyance channel of this prefabricated reclaimed water branch node drainage pipe is the branch node drainage pipe body 2. Both ends of the body are connected to external pipes via flange structures, while a sealing design prevents reclaimed water leakage. The left end of the branch node drainage pipe body 2 is fitted with a prefabricated connecting flange A1, and the right end with a prefabricated connecting flange B4. Both flanges are identical in shape and size to ensure universal compatibility. Rubber sealing gaskets 6 are fitted to the outer wall of both the left end of flange A1 and the outer wall of both the right end of flange B4, and these gaskets are flush with the circular outer wall of the flange. When the flange is connected to an external pipe (such as a main pipe or branch pipe), tightening the bolts compresses the rubber sealing gasket 6, causing elastic deformation that fills the tiny gaps between the flange and the external pipe. The flush design also prevents the gasket from being crushed due to protrusion from the flange's outer wall, forming a reliable sealing layer that prevents reclaimed water leakage during transport, ensuring water conveyance efficiency and environmental safety.

[0024] like Figure 1 and Figure 2As shown, the main pipe connecting sleeve 5 is inserted into the circular inner wall of the assembly flange B4. Its left end is integrally formed and connected to the right end of the branch node drainage pipe body 2. When the assembly flange B4 is connected to the main drainage pipe, the main pipe connecting sleeve 5 will be inserted into the pipe opening of the main drainage pipe, forming an internal insertion positioning structure. This design can first ensure the coaxiality of the pipes during connection through the sleeve, avoiding installation difficulties caused by misalignment of flange bolt holes. At the same time, the fit between the sleeve and the inner wall of the main drainage pipe can further enhance the structural stability of the connection and reduce the loosening of the connection caused by water flow impact. It is especially suitable for the flow fluctuation scenario during the transportation of reclaimed water. The branch node drainage pipe body 2 is equipped with concrete support blocks 7 near the bottom of both ends. The top outer wall of the support block has a downward arc-shaped groove, and the groove fits tightly against the arc-shaped outer wall of the bottom of the pipe. The concrete support block 7 is made of concrete and has sufficient load-bearing capacity. It can evenly transfer the weight of the pipe to the ground and prevent the pipe from sinking and deforming due to its own weight or the weight of the water transport. The tight fit between the arc-shaped groove and the outer wall of the pipe can limit the lateral displacement of the pipe and prevent the pipe from shifting due to ground vibration or water flow impact. At the same time, it reduces the local friction loss between the pipe and the support block, and further ensures the long-term stability of the pipe in the installation scenario.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, to address the issue of deformation in reclaimed water pipelines due to water pressure, temperature, and soil settlement during long-term use, the circular outer wall of the branch node drainage pipe body 2 is equipped with an anti-stress deformation device 3. This device achieves anti-deformation function through the coordinated action of multiple components. Multiple fiberglass fixing sleeves 8 are equidistantly fitted onto the outside of the branch node drainage pipe body 2 and fixed with adhesive. The fiberglass material possesses high strength and lightweight characteristics, with a thickness less than the pipe body itself. This enhances the bending resistance of the pipe's outer wall without significantly increasing the overall weight of the pipe (facilitating on-site installation). The equidistant distribution design ensures that the reinforcement force is evenly applied to the pipe's outer wall, avoiding localized reinforcement. The uneven stress caused by this initially resists the radial expansion or axial bending deformation of the pipeline. Each fiberglass fixing sleeve 8 has an integrally formed connecting block A9 (top), connecting block B10 (lower left side of the center), and connecting block C11 (lower right side of the center) on its outer wall. The three are arranged in an equilateral triangle. The triangular structure itself has stability and can decompose the external force on the pipeline (such as soil compression and water flow impact) into three-way component forces, avoiding deformation caused by excessive force in one direction. At the same time, all connecting blocks A9, B10, and C11 have screw through holes 14 inside, which facilitates the subsequent connection of screws 12.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, multiple connecting screws 12 are respectively threaded through the screw holes 14 of multiple connecting blocks A9, multiple connecting blocks B10, and multiple connecting blocks C11. Each screw has multiple sets of position locking double nuts 13 (each set contains two individual nuts) threaded onto its external threads. The two nuts are clamped at the left and right ends of the corresponding connecting block. After tightening the position locking double nuts 13, the same type of connecting blocks (such as all connecting blocks A9) can be connected into a whole to form three rigid support bands along the pipe axis (one at the top and two at the bottom left and right). This design can transfer the reinforcing force of a single fiberglass fixing sleeve 8 to the entire device, so that the outer wall of the pipe forms a rigid constraint in all directions. When the pipe is under local stress, the stress will be distributed to all fixing sleeves through the connecting blocks and screws, avoiding cracking and damage caused by local stress concentration and extending the service life of the pipe.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated reclaimed water branch node drainage pipe, comprising a branch node drainage pipe body (2) and an assembly flange A (1) disposed on the outside of the left end of the branch node drainage pipe body (2), wherein an assembly flange B (4) is disposed on the outside of the right end of the branch node drainage pipe body (2), and the assembly flange A (1) and the assembly flange B (4) are of the same shape and size, characterized in that: The outer circular wall of the branch node drainage pipe body (2) is provided with an anti-stress deformation device (3); The stress deformation resistance device (3) includes multiple fiberglass fixing sleeves (8), which are equidistantly sleeved on the outside of the branch node drainage pipe body (2), and the fiberglass fixing sleeves (8) and the branch node drainage pipe body (2) are fixedly connected by adhesive. The thickness of the fiberglass fixing sleeves (8) is less than the thickness of the branch node drainage pipe body (2).

2. The prefabricated reclaimed water branch node drainage pipe according to claim 1, characterized in that: The stress deformation resistance device (3) further includes connecting block A (9), connecting block B (10), connecting block C (11) and screw through hole (14). The top outer wall of the multiple fiberglass fixing sleeves (8) is integrally formed with connecting block A (9). The lower left and right outer walls of the center of the multiple fiberglass fixing sleeves (8) are integrally formed with connecting block B (10) and connecting block C (11), respectively. The connecting blocks A (9), B (10) and C (11) on the outer wall of each fiberglass fixing sleeve (8) are arranged in an equilateral triangle angle. The screw through hole (14) is opened inside the multiple connecting blocks A (9), B (10) and C (11).

3. The prefabricated reclaimed water branch node drainage pipe according to claim 2, characterized in that: The stress-resistant deformation device (3) further includes a connecting screw (12) and a position-locking double nut (13). A connecting screw (12) is inserted into the screw through hole (14) inside the multiple connecting blocks A (9), multiple connecting blocks B (10) and multiple connecting blocks C (11), and multiple sets of position-locking double nuts (13) are threaded onto the outside of each connecting screw (12).

4. The prefabricated reclaimed water branch node drainage pipe according to claim 3, characterized in that: Each of the multiple sets of position locking double nuts (13) includes two separate position locking nuts, and the two separate position locking nuts in each set of position locking double nuts (13) are respectively clamped at the left and right ends of the connecting block A (9), the left and right ends of the connecting block B (10), and the left and right ends of the connecting block C (11) at the corresponding positions.

5. A prefabricated reclaimed water branch node drainage pipe according to claim 4, characterized in that: After the locking double nuts (13) at multiple positions outside the connecting screw (12) are tightened, the connecting screw (12) can connect multiple connecting blocks A (9), multiple connecting blocks B (10), and multiple connecting blocks C (11) into a whole.

6. A prefabricated reclaimed water branch node drainage pipe according to claim 1, characterized in that: Rubber sealing gaskets (6) are provided on the outer wall of the left end of the assembly docking flange A (1) and the outer wall of the right end of the assembly docking flange B (4), and the rubber sealing gaskets (6) are flush with the circular outer walls of the assembly docking flange A (1) and the assembly docking flange B (4).

7. A prefabricated reclaimed water branch node drainage pipe according to claim 6, characterized in that: The assembly flange B (4) has a main pipe connection sleeve (5) inserted into its circular inner wall. The left end of the main pipe connection sleeve (5) is integrally formed and connected to the right end of the branch node drainage pipe body (2). After the assembly flange B (4) is connected to the main drainage pipe, the main pipe connection sleeve (5) is inserted into the pipe opening of the main drainage pipe.

8. A prefabricated reclaimed water branch node drainage pipe according to claim 7, characterized in that: The branch node drainage pipe body (2) is also provided with concrete support blocks (7) near the bottom of both ends. The top outer wall of the concrete support block (7) is provided with a downward arc-shaped groove, and the groove is closely attached to the bottom arc-shaped outer wall of the branch node drainage pipe body (2).

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