Branch water supply valve well structure of water conveying pipeline

Abstract

The utility model belongs to the technical field of water conveying pipeline valve monitoring and control, and discloses a water conveying pipeline branch water supply valve well structure which comprises a valve well, a main water conveying pipeline, a branch pipeline, a flow and pressure adjusting valve, a tee joint, an electromagnetic flowmeter, a pressure sensor and an electric butterfly valve. The water inlet end of the electric butterfly valve is connected with the main water conveying pipeline, the water outlet end of the electric butterfly valve is connected with the tee joint, the water outlet end of the electromagnetic flowmeter is connected with the branch pipeline, the water inlet end of the electromagnetic flowmeter is connected with a short pipe, and the pressure sensor is installed on the short pipe. And the water outlet end of the flow and pressure regulating valve is connected with the short pipe, and the water inlet end is connected with the tee joint. According to the utility model, the stability of water flow in the whole water delivery pipeline system and the accuracy of supply and demand flow matching under different working conditions can be optimized, and the problem that the end user cannot reach the water demand due to the water grabbing condition of the water distribution port is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of water pipeline valve monitoring and control technology, specifically relating to a branch water supply valve well structure for a water pipeline. Background Technology

[0002] In water conveyance and diversion projects, branch pipelines are often designed according to different water receiving areas, forming a tree-like water supply system. Gate valves or butterfly valves are installed at the branch points to control the flow rate of each pipeline section and switch between different operating conditions using different opening degrees. In actual operation, when encountering changes in water supply and demand and water pressure, especially in emergency situations or water outages due to maintenance, gate valves or butterfly valves, as on / off valves, cannot respond quickly and flexibly to sudden events. Furthermore, using the valve opening degree to regulate flow and pressure increases the friction between the valve plate and the sealing ring during opening and closing, affecting the elastic compensation capability and reliability of the sealing ring. It also increases the degree of fluid turbulence, easily causing sudden pressure changes in the pipeline, resulting in water hammer waves and water surges, threatening the operational safety of the pipeline. In severe cases, it may lead to pipe bursts, valve impacts, reduced valve life, and huge economic losses to the project. Utility Model Content

[0003] The purpose of this utility model is to provide a branch water supply valve well structure for a water transmission pipeline, which can optimize the stability of water flow in the entire water transmission pipeline system and the accuracy of supply and demand flow matching under different operating conditions, thus avoiding water grabbing at the branch point and preventing end users from meeting their water demand.

[0004] The technical solution adopted by this utility model is a branch water supply valve well structure for a water transmission pipeline, including a valve well, a main water transmission pipeline, a branch pipeline, a flow regulating and pressure regulating valve, a tee, an electromagnetic flowmeter, a pressure sensor, and an electric butterfly valve. The main water transmission pipeline is installed in the valve well. The inlet end of the electric butterfly valve is connected to the main water transmission pipeline, and its outlet end is connected to the tee. The outlet end of the electromagnetic flowmeter is connected to the branch pipeline, and the inlet end of the electromagnetic flowmeter is connected to a short pipe. The pressure sensor is installed on the short pipe. The outlet end of the flow regulating and pressure regulating valve is connected to the short pipe, and its inlet end is connected to the tee.

[0005] Furthermore, the inlet end of the electric butterfly valve is connected to the main water supply pipeline via a flange-driven expansion joint, and the inlet end of the flow regulating and pressure regulating valve is connected to a tee via a flange-driven expansion joint.

[0006] Furthermore, the valve well includes a bottom plate, a well wall, and a cover plate. The bottom plate is fixedly connected to the bottom end of the well wall, and the cover plate is fixedly connected to the top end of the well wall. A concrete pad layer is provided around the bottom plate and the well wall.

[0007] Furthermore, a valve support is provided on the base plate to support the electromagnetic flowmeter.

[0008] Furthermore, the main water supply pipe, tee, and branch pipes that penetrate the well wall are all fitted with waterproof sleeves.

[0009] Furthermore, a water collection pit is provided below the base plate.

[0010] Furthermore, a prefabricated well ring is provided on the cover plate, an inspection hole is opened at the top of the prefabricated well ring, and a step is installed on the well wall facing the inspection hole.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model proposes a branch water supply valve well structure for a water transmission pipeline. By intelligently regulating the flow and pressure within the pipeline through a flow and pressure regulating valve, and in conjunction with an electromagnetic flow meter and pressure sensor, it achieves the goal of ensuring accurate flow and stable pressure in the pipeline system through rapid hydraulic regulation. This optimizes the stability of water flow within the entire water transmission pipeline system and the accuracy of matching supply and demand flow under different operating conditions. It avoids water competition at the branch points, preventing end users from not receiving the required water. At the same time, the configuration of an automated control system enhances the remote monitoring, scheduling, scientific decision-making, and precise execution of the project, realizing a smart water supply system. Attached Figure Description

[0013] Figure 1 This is a schematic plan view of the overall structure of this utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0015] Explanation of reference numerals in the attached drawings: 1. Main water supply pipeline; 2. Waterproof sleeve; 3. Flange force transmission expansion joint; 4. Electric butterfly valve; 5. Tee; 6. Steel flange; 7. Flow regulating and pressure regulating valve; 8. Short pipe; 9. Pressure sensor; 10. Electromagnetic flow meter; 11. Branch pipeline; 13. Step; 14. Well wall; 15. Concrete bedding layer; 16. Sump; 17. Valve support; 18. Inspection hole; 19. Precast well ring; 20. Cover plate; 21. Base plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer and more understandable, the technical solutions of this utility model will be further described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 , Figure 2As shown in the figure, the water supply valve well structure of the water supply pipeline branch provided in this embodiment includes a valve well, a main water supply pipeline 1, a branch pipeline 11, a flow regulating and pressure regulating valve 7, a tee 5, an electromagnetic flowmeter 10, a pressure sensor 9, and an electric butterfly valve 4. The main water supply pipeline 1 is installed in the valve well. The inlet end of the electric butterfly valve 4 is connected to the main water supply pipeline 1, and its outlet end is connected to the tee 5. The outlet end of the electromagnetic flowmeter 10 is connected to the branch pipeline 11. The inlet end of the electromagnetic flowmeter 10 is connected to a short pipe 8. The pressure sensor 9 is installed on the short pipe 8. The outlet end of the flow regulating and pressure regulating valve 7 is connected to the short pipe 8, and its inlet end is connected to the tee 5.

[0018] The electric butterfly valve 4 is preferably a double eccentric soft-seal electric butterfly valve, which plays the role of regulating and cutting off water flow. When the water supply system is operating normally, the electric butterfly valve 4 is normally open, the butterfly plate is parallel to the pipe section, and the water flows through the butterfly plate channel; when the branch pipe 11 is shut off for maintenance, the electric butterfly valve 4 is closed, the butterfly plate is perpendicular to the pipe section, and the water flow is cut off.

[0019] The flow and pressure regulating valve 7 is preferably a piston-type multi-jet valve. This valve mainly consists of a valve body, valve shaft, piston, valve seat, crank, connecting rod, drive rod, and electric drive mechanism. The crank-connecting rod mechanism converts the rotation of the valve shaft into axial movement of the piston along the guide rail, thereby changing the flow area between the piston and the valve seat to achieve flow or pressure regulation. The unique squirrel-cage structure of the multi-jet type allows water to collide and flow out through conical orifices, resulting in cavitation and energy dissipation, providing good cavitation resistance and energy dissipation effect. The flow or pressure parameters of the flow and pressure regulating valve are controlled remotely via electric transmission, and the branch pipeline 11 operates according to the "design flow rate" or "design pressure".

[0020] The 10-series electromagnetic flowmeter is an integrated unit consisting of a sensor and a converter. When water flows through the sensor, it cuts magnetic lines of force, generating an induced electromotive force. This signal is collected by two electrodes within the sensor. The converter processes the collected signal and converts it into the instantaneous and cumulative flow rates of the liquid. A data acquisition terminal, powered by 220V / 380V, communicates with the management platform via 4G IoT to collect instantaneous flow velocity and cumulative flow rates in real time.

[0021] The pressure sensor 9 is equipped with a remote control terminal, powered by 220V / 380V, and communicates with the management platform via 4G IoT to monitor pipeline pressure in real time. It immediately alarms when pressure exceeds the limit. During installation, appropriately sized mounting holes must be machined on the pipeline, and a good seal is formed by rotating the sensor through the thread.

[0022] The inlet end of the electric butterfly valve 4 is connected to the main water supply pipeline 4 through the flange force transmission expansion joint 3, and the inlet end of the flow regulating and pressure regulating valve 7 is connected to the tee 5 through the flange force transmission expansion joint 3.

[0023] The flange-type force-transmitting expansion joint 3 connects the pipeline equipment and the joint in series with fully threaded bolts and is secured with nuts to form a whole. As it is an expansion joint, it can reserve a certain amount of displacement. During installation, the distance can be adjusted according to the site dimensions. In the working state, the joint and the pipeline are rigidly connected, which can transmit axial thrust to the entire pipeline, thereby providing a certain degree of protection for valve equipment and providing sufficient expansion and contraction space to facilitate the adjustment and maintenance of the pipeline system.

[0024] In this utility model, the connection points of the flange force transmission expansion joint 3, the main water supply pipeline 1, the branch pipeline 11, the flow regulating and pressure regulating valve 7, the electromagnetic flowmeter 10, the pressure sensor 9, and the electric butterfly valve 4 are all fixedly connected by steel flanges 6.

[0025] The valve well includes a base plate 21, a well wall 14, and a cover plate 20. The base plate 21 is fixedly connected to the bottom end of the well wall 14, and the cover plate 20 is fixedly connected to the top end of the well wall 14. A concrete pad 15 is provided around the base plate 21 and the well wall 14. A valve support 17 is provided on the base plate 21 to support the valve body and provide stable support. The main water supply pipe 1, the tee 5, and the branch pipe 11 are all fitted with waterproof sleeves 2 through the pipes passing through the well wall 14 to prevent damage or leakage of the pipes. A sump 16 is provided below the base plate 21. A prefabricated well ring 19 is provided on the cover plate 20. An inspection hole 18 is opened at the top of the prefabricated well ring 19. A step 13 is installed on the well wall 14 facing the inspection hole 18, allowing maintenance personnel to enter the valve well through the inspection hole 18 and the step 13 to perform maintenance and repair on the facilities inside the well.

[0026] Any content not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. A branch water supply valve well structure for a water transmission pipeline, characterized in that, The system includes a valve well, a main water supply pipeline, branch pipelines, a flow regulating and pressure regulating valve, a tee, an electromagnetic flowmeter, a pressure sensor, and an electric butterfly valve. The main water supply pipeline is installed in the valve well. The inlet end of the electric butterfly valve is connected to the main water supply pipeline, and its outlet end is connected to the tee. The outlet end of the electromagnetic flowmeter is connected to the branch pipeline, and the inlet end of the electromagnetic flowmeter is connected to a short pipe. The pressure sensor is installed on the short pipe. The outlet end of the flow regulating and pressure regulating valve is connected to the short pipe, and its inlet end is connected to the tee.

2. The water supply valve well structure of the water pipeline according to claim 1, characterized in that, The inlet end of the electric butterfly valve is connected to the main water supply pipeline via a flange-driven expansion joint, and the inlet end of the flow regulating and pressure regulating valve is connected to a tee via a flange-driven expansion joint.

3. The water supply valve well structure of the water pipeline according to claim 1, characterized in that, The valve well includes a bottom plate, a well wall, and a cover plate. The bottom plate is fixedly connected to the bottom end of the well wall, and the cover plate is fixedly connected to the top end of the well wall. A concrete pad layer is provided around the bottom plate and the well wall.

4. The water supply valve well structure of the water pipeline according to claim 3, characterized in that, The base plate is equipped with a valve support for supporting the electromagnetic flowmeter.

5. The water supply valve well structure of the water pipeline according to claim 3, characterized in that, The main water supply pipeline, tee, and branch pipelines that penetrate the well wall are all fitted with waterproof sleeves.

6. The water supply valve well structure of the water pipeline according to claim 3, characterized in that, A water collection pit is provided below the base plate.

7. The water supply valve well structure of the water pipeline branch as described in claim 3, characterized in that, The cover plate is provided with a prefabricated well ring, the top of the prefabricated well ring is provided with an inspection hole, and the well wall is provided with a step facing the inspection hole.

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