A PE water supply and drainage network and sewage collection system

Abstract

A PE water supply and drainage pipe network and sewage collection system belong to the field of water supply and drainage technology. The PE water supply and drainage pipe network includes several PE pipes. The highest point of each PE pipe is connected to a flexible connection mechanism, which is connected to a breather valve. The breather valve is internally connected to the PE pipe and can quickly balance the internal and external pressure of the pipe when the water pump starts or stops and generates negative pressure, preventing the pipe from being flattened and deformed due to negative pressure. The flexible connection mechanism, as the connecting component between the breather valve and the pipe, is flexible enough to adapt to the small displacement of the pipe caused by pressure changes, preventing air leakage due to stress concentration at the connection, ensuring the normal operation of the breather valve, maintaining stable water flow, and extending the service life of the pipe.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage technology, and in particular to a PE water supply and drainage network and sewage collection system. Background Technology

[0002] PE (polyethylene) water supply and drainage pipe network is a widely used pipeline system in the fields of municipal and building water supply and drainage. It has the characteristics of corrosion resistance, flexibility, low temperature resistance, pressure bearing capacity and impact resistance, and occupies an important position in water supply and drainage engineering.

[0003] In sewage collection systems (such as sewage tank systems), PE water supply and drainage pipe networks are laid with height differences. Water pumps are installed in the sewage tanks and connected to the PE water supply and drainage pipe networks. When the sewage level in the sewage tanks reaches a designated position, the water pumps are activated to pump the water in the sewage tanks into the PE water supply and drainage pipe networks to achieve water discharge and ensure that the sewage tanks are always at a safe water level.

[0004] However, PE water pipes have low strength and high flexibility. When the water pump starts, if there is air in the pipe, the pump's suction will quickly reduce the pressure in the inlet pipe. When the pump stops, the water in the pipe continues to flow due to inertia, creating a "negative pressure suction" phenomenon at the pump outlet or at a high point. The pipe is easily flattened and deformed by the negative pressure, resulting in reduced water flow and shortened pipe life. Utility Model Content

[0005] To address the technical problem in the background art that existing PE water supply and drainage pipe networks are susceptible to negative pressure, resulting in negative pressure flattening and deformation, which leads to reduced water flow and shortened pipe life, this utility model provides a PE water supply and drainage pipe network.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a PE water supply and drainage pipe network, including: a plurality of PE pipes, with a flexible connection mechanism connected to the highest point of the PE pipes, and a breather valve connected to the flexible connection mechanism. The breather valve is connected to the interior of the PE pipes and can quickly balance the pressure inside and outside the pipes when the water pump starts or stops and generates negative pressure, so as to avoid the pipes being flattened and deformed due to negative pressure. The flexible connection mechanism, as the connecting component between the breather valve and the pipes, is flexible enough to adapt to the small displacement of the pipes caused by pressure changes, prevent air leakage caused by stress concentration at the connection, ensure the normal operation of the breather valve, maintain stable water flow, and extend the service life of the pipes.

[0008] Preferably, the flexible connection mechanism is connected to the PE pipe via a tee. The tee connection makes the connection between the breather valve and the PE pipe more stable and facilitates construction and installation. At the same time, the tee structure can reasonably distribute the water flow and air flow path in the pipe, assist the breather valve to quickly sense and respond to pressure changes, replenish air in time, effectively prevent negative pressure, and ensure the safe operation of the pipeline network.

[0009] Preferably, a gate valve is installed between the flexible connection mechanism and the tee. The gate valve facilitates the cutting off of airflow during pipeline maintenance or repair, and makes it easy to disassemble and replace the breather valve or flexible connection mechanism. During normal system operation, the gas flow can be flexibly controlled by adjusting the gate valve opening, and the pressure inside the pipeline can be precisely balanced, further improving the safety and stability of the system.

[0010] Preferably, the tee and the gate valve, the gate valve and the flexible connection mechanism, and the flexible connection mechanism and the breather valve are all detachably connected by flanges. The flange connection method facilitates the quick assembly and disassembly of each component, significantly reducing installation and maintenance costs. At the same time, the tight sealing performance of the flange can effectively prevent gas leakage, ensure that the breather valve can play a normal pressure balancing role under negative pressure, and avoid the increased risk of pipeline collapse due to air leakage.

[0011] Preferably, the flexible connection mechanism includes a flexible tube made of rubber, with flanges detachably installed at both ends of the flexible tube. The flexible tube has good flexibility and can adapt to the displacement and deformation of the pipeline caused by temperature changes and pressure fluctuations, avoiding damage to the connection due to rigid connection. The detachable flange design facilitates the replacement of the flexible tube. When the flexible tube ages and loses its flexibility, it can be quickly replaced to ensure long-term stable operation of the system.

[0012] Preferably, the flexible tube includes a tube body, with connecting parts fixed at both ends. The connecting parts are used to clamp between two flanges. Several bolt holes are provided on the connecting parts at intervals along their circumference. The connecting parts cooperate with the flanges to clamp, which enhances the connection strength between the flexible tube and other components and prevents the connection from loosening due to pipeline pressure fluctuations. The setting of bolt holes ensures the tight fixation between the flanges and the connecting parts, improves the overall structural stability, and avoids air leakage at the connection affecting the pressure balance function of the breather valve.

[0013] Preferably, the surface of the connecting part is provided with a sealing groove, and there is at least one sealing groove. A sealing ring is detachably installed in the sealing groove. The combination of the sealing groove and the sealing ring further improves the sealing performance of the flexible connecting mechanism, effectively prevents gas from leaking from the connection, and ensures that the breather valve can play its role in balancing pressure normally.

[0014] Preferably, the tube body is a drum-shaped tube body or a long tube body. The drum-shaped or long tube body has a larger deformation buffer space, which can better absorb the displacement of the pipeline caused by pressure changes. It can also disperse stress through its own structure, reduce the risk of damage caused by pressure concentration at the connection, optimize the gas flow path in the pipeline, and assist the breather valve to quickly balance the pressure.

[0015] Preferably, a transition section is fixedly connected between both ends of the pipe body and the connecting part. The transition section can make the stress distribution between the pipe body and the connecting part more uniform, avoid stress concentration caused by abrupt changes in the cross section at the connection point, and enhance the overall structural strength of the flexible pipe. At the same time, the transition section can protect the connection between the pipe body and the connecting part from being damaged by pulling or squeezing, extend the service life of the flexible connection mechanism, ensure the stable connection between the breather valve and the pipeline, and indirectly prevent the PE pipeline from deforming due to negative pressure.

[0016] This utility model provides a sewage collection system, including the aforementioned PE water supply and drainage pipe network, which can effectively solve the problem of pipe flattening due to negative pressure caused by pump start-up and shutdown and pipe height difference laying, ensure stable discharge of sewage tank water level, greatly improve reliability, effectively reduce problems such as reduced water flow and maintenance and replacement caused by pipe deformation, significantly reduce maintenance costs, and extend the service life of the entire sewage collection system.

[0017] As can be seen from the above technical solutions, the advantages of this utility model are:

[0018] 1. Installing a breather valve at the highest point of the PE pipeline can quickly balance the pressure inside and outside the pipeline when the water pump starts or stops and generates negative pressure, preventing the pipeline from being flattened and deformed due to negative pressure. The breather valve is connected to the PE pipeline through a flexible connection mechanism, which can reduce the damage to the breather valve caused by vibration and also adapt to the slight displacement of the pipeline caused by pressure changes. This prevents air leakage caused by stress concentration at the connection, ensures the normal operation of the breather valve, maintains a stable water flow, and extends the service life of the pipeline.

[0019] 2. A gate valve is installed between the flexible connection mechanism and the tee. The gate valve facilitates the cutting off of airflow during pipeline maintenance or repair, and makes it easy to disassemble and replace the breather valve or flexible connection mechanism. During normal system operation, the gas flow can be flexibly controlled by adjusting the gate valve opening, accurately balancing the pressure inside the pipeline, and further improving the safety and stability of the system.

[0020] 3. The surface of the connection part is provided with a sealing groove, and a sealing ring can be detachably installed in the sealing groove. The combination of the sealing groove and the sealing ring further improves the sealing performance of the flexible connection mechanism, effectively prevents gas from leaking from the connection, and ensures that the breather valve can play its role in balancing pressure normally. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0022] Figure 1 This is a partial structural diagram of a PE water supply and drainage pipe network according to one or more embodiments of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the flexible tube according to one or more embodiments of the present invention;

[0024] Figure 3 This is a front view structural diagram of the flexible tube according to one or more embodiments of the present invention;

[0025] Figure 4 This is a top view of the flexible tube according to one or more embodiments of the present invention.

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. PE pipe; 2. Tee; 3. Gate valve; 4. Flexible connection mechanism; 5. Breather valve; 6. Flange; 7. Flexible pipe; 71. Pipe body; 72. Connection part; 73. Transition part; 74. Bolt hole; 75. Sealing groove. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Example 1

[0030] In a typical embodiment of this utility model, such as Figures 1-4 As shown, a PE water supply and drainage pipe network is proposed, including: several PE pipes 1, tees 2, flexible connection mechanisms 4, and breather valves 5. The breather valve 5 is installed at the highest point of the PE pipes 1 through the tees 2 and the flexible connection mechanism 4. The breather valve 5 is connected to the interior of the PE pipes 1. The breather valve 5 can realize the automatic discharge and intake of gas in the PE pipes 1, ensuring that the pipes are not flattened or deformed, thereby ensuring the water flow of the pipes. The flexible connection mechanism 4 can ensure the flexible installation of the breather valve 5.

[0031] like Figure 1 As shown, a gate valve 3 is also provided. The gate valve 3 is fixedly installed between the tee 2 and the flexible connection mechanism 4. The gate valve 3 is used to block the tee 2, which facilitates the online maintenance and replacement of the flexible connection mechanism 4 and the breather valve 5.

[0032] In this embodiment, the three-way valve 2 and the gate valve 3, the gate valve 3 and the flexible connection mechanism 4, and the flexible connection mechanism 4 and the breather valve 5 are all detachably connected by flanges 6.

[0033] Specifically, flanges 6 are welded and fixed on the three-way valve 2, gate valve 3, and breather valve 5. Flanges 6 are detachably installed on the flexible connection mechanism 4. Adjacent flanges 6 are connected by bolts to complete the fixed connection between the various components.

[0034] like Figure 2 As shown, the flexible connection mechanism 4 includes a flexible tube 7 and flanges 6 that are detachably installed at both ends of the flexible tube 7. The flexible tube 7 is made of rubber material and is hollow inside to facilitate the connection between the breather valve 5 and the PE pipe 1.

[0035] like Figure 3 and Figure 4 As shown, the flexible tube 7 includes a tube body 71 and a connecting part 72. The tube body 71 is a hollow structure, and the connecting part 72 is an annular structure. The connecting part 72 is fixedly installed at both ends of the tube body 71 by integral molding. Several bolt holes 74 are provided on the connecting part 72 at intervals along its circumference for bolt installation, so that the flange 6 can be connected to the connecting part 72 by bolts.

[0036] In actual use, the two flanges 6 are clamped on the upper and lower sides of the connection part 72 and fixed with bolts, thereby fixing the position of the flexible tube 7.

[0037] In this embodiment, the tube body 71 is a waist-drum shaped tube body, that is, the diameter of the middle waist is larger than the diameter of its two ends. In other embodiments, the tube body 71 can also be a long tube body. The specific choice can be made according to actual needs, and no further restrictions are imposed here.

[0038] A transition portion 73 is also fixedly connected between the two ends of the pipe body 71 and the connecting portion 72 to increase the thickness of the two ends of the pipe body 71, prevent the pipe body 71 from directly contacting the flange 6, and improve the service life of the pipe body 71.

[0039] To improve sealing, a sealing groove 75 is provided on the surface of the connection part 72. A sealing ring is detachably installed in the sealing groove 75. During installation, the sealing ring is compressed and deformed by the flange 6 to achieve a seal, thereby improving the sealing performance of the connection between the flange 6 and the flexible pipe 7 and ensuring effective communication between the breather valve 5 and the PE pipe 1.

[0040] The sealing groove 75 extends circumferentially along the connecting part 72. There is at least one sealing groove 75. When multiple sealing grooves 75 are provided, they are arranged at radial intervals along the connecting part 72, thereby improving the sealing ability through multiple seals.

[0041] Example 2

[0042] In another typical embodiment of this utility model, a sewage collection system is proposed, including: a sewage tank and the PE water supply and drainage network mentioned in Example 1. A water pump is installed in the sewage tank and the water pump is connected to the PE water supply and drainage network.

[0043] A flexible connection mechanism 4 is installed at the highest point of the PE water supply and drainage pipe network. The flexible connection mechanism 4 is connected to a breather valve 5. The breather valve 5 is connected to the inside of the PE water supply and drainage pipe network. The breather valve 5 can realize the automatic discharge and intake of gas in the PE water supply and drainage pipe network, ensuring that the pipe is not flattened or deformed, thereby ensuring the water flow of the pipe. The flexible connection mechanism 4 can ensure the flexible installation of the breather valve 5. The setting of the breather valve 5 can discharge the gas in the pipe in time, clear the pipe, and ensure the normal operation of the pipe. When the pump stops suddenly, the breather valve 5 can also draw in gas to ensure the safety of the pipe and prevent deformation.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PE water supply and drainage pipe network, comprising: A plurality of PE pipes (1), characterized in that a flexible connection mechanism (4) is connected at the highest point of the PE pipe (1), and a breather valve (5) is connected to the flexible connection mechanism (4), and the breather valve (5) is connected to the interior of the PE pipe (1).

2. The PE water distribution network according to claim 1, characterized in that, The flexible connection mechanism (4) is connected to the PE pipe (1) through the tee (2).

3. The PE water distribution network of claim 2, wherein, A gate valve (3) is installed between the flexible connection mechanism (4) and the tee (2).

4. The PE water distribution network of claim 3, wherein, The tee (2) and the gate valve (3), the gate valve (3) and the flexible connection mechanism (4), and the flexible connection mechanism (4) and the breather valve (5) are all detachably connected by flanges (6).

5. The PE water distribution network of claim 1, wherein, The flexible connection mechanism (4) includes a flexible tube (7) made of rubber, and flanges (6) are detachably installed at both ends of the flexible tube (7).

6. The PE water distribution network of claim 5, wherein, The flexible tube (7) includes a tube body (71), and the two ends of the tube body (71) are fixedly provided with connecting parts (72). The connecting parts (72) are used to clamp between two flanges (6). Several bolt holes (74) are provided on the connecting parts (72) along their circumferential intervals.

7. The PE water distribution network of claim 6, wherein, The surface of the connecting part (72) is provided with a sealing groove (75), and there is at least one sealing groove (75). A sealing ring is detachably installed in the sealing groove (75).

8. The PE water distribution network of claim 6, wherein, The tube body (71) is shaped like a waist drum or a long tube.

9. The PE water distribution network of claim 6, wherein, The two ends of the tube body (71) are fixedly connected to the connecting part (72) by a transition part (73).

10. A sewage collection system characterised in that, The PE water supply and drainage pipe network as described in any one of claims 1-9 was adopted.

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