Hydraulic engineering pipeline with flow monitoring structure

Abstract

The invention relates to the technical field of water conservancy projects, and discloses a water conservancy project pipeline with a flow monitoring structure, which comprises an engineering pipeline body, the two ends of the engineering pipeline body are of outwards-expanded opening structures, and the surface of the engineering pipeline body is provided with a vertical pipeline to form a three-way pipe structure; and the vertical pipeline of the engineering pipeline body is in threaded connection with an overhaul sealing cover. According to the hydraulic engineering pipeline with the flow monitoring structure, the vertical pipeline of the engineering pipeline body is in threaded connection with the overhaul sealing cover, the overhaul sealing cover is screwed into and seals the opening of the vertical pipeline through threaded connection, and when parts such as a turbine flow meter and an ultrasonic flow meter in the pipeline need to be overhauled, maintained or calibrated and sundries in the pipeline need to be cleaned, the overhaul sealing cover can be replaced; the overhaul sealing cover can be conveniently screwed off, operation is carried out through the vertical pipeline opening, a large number of pipeline parts do not need to be disassembled, overhaul and maintenance convenience is improved, and maintenance cost and time cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, in particular to a water conservancy project pipeline with a flow monitoring structure. Background Art

[0002] As key infrastructure to ensure the rational allocation and efficient use of water resources, water conservancy projects play an irreplaceable role in agricultural irrigation, urban water supply, flood control and drainage, and other fields. As a core component of the water delivery system of water conservancy projects, the accurate monitoring of pipeline flow is directly related to the operational efficiency of the project, the scientific scheduling of water resources, and the safety and stability of the entire system. In water conservancy projects, pipelines are the key carriers of water resources, and their flow monitoring is crucial. Although the commonly used flow detection instruments can achieve flow measurement, they have some defects in actual application, such as: Due to the long-term impact of water flow, water pressure changes and complex geological environment, water conservancy project pipelines often experience pipeline deformation and vibration, which leads to unstable installation of flow detection instruments, affecting measurement accuracy. The connection between the flow detection instrument and the pipeline is prone to leakage, which in turn causes equipment damage. Since water conservancy project pipelines are difficult to implement in difficult wiring areas such as the wild, they are easily affected by environmental factors, resulting in data loss or errors.

[0003] In response to the above problems, it is urgent to carry out innovative design based on the original water conservancy project pipelines. Summary of the Invention

[0004] The purpose of the present invention is to provide a water conservancy project pipeline with a flow monitoring structure to solve the problem raised in the above background technology that water conservancy project pipelines often experience pipeline deformation, vibration, etc. due to long-term exposure to water flow impact, water pressure changes and complex geological environment, resulting in unstable installation of flow detection instruments, affecting measurement accuracy, and prone to water leakage at the connection between the flow detection instrument and the pipeline, which in turn causes equipment damage.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a water conservancy project pipeline with a flow monitoring structure, comprising a project pipeline body, which is a water conservancy project pipeline, wherein both ends of the project pipeline body have an outwardly flared opening structure, a vertical pipeline is opened on the surface of the project pipeline body to form a tee pipe structure, and the vertical pipeline of the project pipeline body is threadedly connected to a maintenance sealing cover, wherein the maintenance sealing cover is screwed into and seals the vertical pipeline opening of the project pipeline body through a threaded connection; An inner tube is provided inside the engineering pipeline body, and both ends of the inner tube are aligned with the expanded opening of the engineering pipeline body. The outer wall of the inner tube has two circles of trapezoidal protrusions, and the inner tube is covered with a metal shielding mesh. Turbine blades are installed in the inner tube, and a preamplifier is provided above the turbine blades, and the preamplifier runs through the inner tube. The trapezoidal protrusion of the inner tube is penetrated by the ultrasonic transmitter and the ultrasonic receiver, and the ultrasonic transmitter is above the ultrasonic receiver. The inclined surface of the trapezoidal protrusion of the inner tube is provided with a limit sleeve, and positioning rods are fixed equidistantly on the surface of the limit sleeve. The positioning rods are inserted into the rubber sleeve, and the rubber sleeve is equidistantly arranged on the end face of the positioning rubber ring. The positioning rubber ring is provided at the port of the inner tube, and the port of the inner tube is embedded with a connecting pipe, and the port of the connecting pipe is fixedly connected to one end of the corrugated tube.

[0006] By adopting the above technical solution, the turbine flowmeter and ultrasonic flowmeter are integrated into the inner tube to realize dual-mode flow monitoring, thereby improving the comprehensiveness and accuracy of flow monitoring, and the inspection sealing cover facilitates inspection and maintenance.

[0007] Preferably, the inner wall surface of the engineering pipeline body abuts against the metal shielding mesh, and holes are provided on the surface of the metal shielding mesh.

[0008] By adopting the above technical solution, the metal shielding mesh is offset against the inner wall of the engineering pipeline body, shielding external electromagnetic interference and ensuring the accuracy of flow monitoring; the holes on its surface allow water to flow smoothly without affecting the normal water supply function of the pipeline.

[0009] Preferably, the vertical pipe of the engineering pipeline body is aligned with the holes on the surface of the metal shielding mesh, and the two ends of the metal shielding mesh are abutted against the trapezoidal protrusions on the outer wall of the inner pipe, and the inner diameter of the inner pipe is smaller than the inner diameter of the engineering pipeline body.

[0010] By adopting the above technical solution, the vertical pipes of the engineering pipeline body are aligned with the holes of the metal shielding mesh, which is convenient for maintenance operations. The difference in diameter between the inner pipe and the engineering pipeline body is conducive to the installation of the inner pipe and the distribution of water flow.

[0011] Preferably, the trapezoidal protrusion of the inner tube has two inclined surfaces, and one side of the inclined surface is penetrated by the ultrasonic transmitter and the ultrasonic receiver.

[0012] By adopting the above technical solution, the trapezoidal raised inclined surface structure of the inner tube provides a reasonable installation position for the ultrasonic transmitter and the ultrasonic receiver, ensuring stable transmission of the ultrasonic signal and improving the measurement accuracy of the ultrasonic flowmeter.

[0013] Preferably, the preamplifier and turbine blades constitute a turbine flowmeter, and both ends of the turbine blades are connected to the front guide bracket through bearings, and the front guide bracket is fixed to the inner wall of the inner tube, and a magnetic conductor is embedded in the turbine blades.

[0014] By adopting the above technical solution, the turbine blades and the preamplifier form a turbine flowmeter, and the bearing is connected to the front guide bracket to ensure that the turbine blades rotate stably, which can accurately sense the water flow velocity and thus accurately calculate the flow rate.

[0015] Preferably, a double-layer sealing ring is provided at the connection between the ultrasonic transmitter and the ultrasonic receiver, and the ultrasonic transmitter and the ultrasonic receiver constitute an ultrasonic flow meter, and two ultrasonic flow meters are installed in the inner tube.

[0016] With the above technical solution, the double-layer sealing rings of the ultrasonic transmitter and the ultrasonic receiver ensure sealing and prevent water leakage from affecting measurement; the two ultrasonic flow meters work together to enhance measurement reliability and accuracy.

[0017] Preferably, the connecting pipe is configured as a bucket-shaped structure, and a sealing member is provided at the connection between the connecting pipe and the inner pipe.

[0018] By adopting the above technical solution, the bucket-shaped structure of the connecting pipe is conducive to the transition of water flow, and the seal at the connection with the inner pipe prevents water leakage, ensures the sealing of the pipeline system, and maintains the stability of flow monitoring.

[0019] Preferably, the outer wall surface of the positioning rubber ring abuts against the inner wall surface of the engineering pipeline body, and a butting groove is provided at the opening of the connection between the positioning rubber ring and the connecting pipe.

[0020] By adopting the above technical solution, the positioning rubber ring is abutted against the inner wall of the engineering pipe body to achieve sealing, and is docked with the connecting pipe groove to accurately position the connecting pipe and enhance the overall structural stability.

[0021] Preferably, a magnetic sheet is embedded in the rubber sleeve, and the magnetic sheet of the rubber sleeve is attracted to the metal sheet of the positioning rod port.

[0022] By adopting the above technical solution, the magnetic sheet of the rubber sleeve and the metal sheet of the positioning rod are attracted to each other, so that the limit sleeve and the positioning rubber ring can be quickly and accurately docked, stabilizing the position of the inner tube and preventing it from sliding and shifting.

[0023] Preferably, the limiting sleeve is configured to be bucket-shaped, and the surface of the limiting sleeve abuts against the inner wall surface of the engineering pipeline body.

[0024] By adopting the above technical solution, the limiting sleeve-shaped structure is offset against the inner wall of the engineering pipeline body, limiting the shaking of the inner pipe from the radial direction, and ensuring the stable operation of the inner pipe and internal monitoring components.

[0025] Compared with the prior art, the present invention has the following beneficial effects: the water conservancy project pipeline with flow monitoring structure: 1. The vertical pipe thread connection inspection seal cover of the engineering pipeline body is screwed into the vertical pipe opening through the threaded connection to seal the vertical pipe opening. When it is necessary to inspect, maintain or calibrate the turbine flowmeter, ultrasonic flowmeter and other components inside the pipeline, or to clean the debris inside the pipeline, the inspection seal cover can be easily unscrewed and the operation can be carried out through the vertical pipe opening without removing a large number of pipeline components, which improves the convenience of inspection and maintenance and reduces maintenance costs and time costs; 2. The double-layer casing is achieved by nesting the engineering pipeline body and the inner pipe, and the positioning rubber ring is set at the end of the inner pipe. Its outer wall is against the inner wall of the engineering pipeline body, which plays a sealing and preliminary positioning role. The positioning rod on the surface of the limit sleeve is inserted into the rubber casing, and the magnetic sheet in the rubber casing is attracted to the metal sheet at the end of the positioning rod, further enhancing the positioning stability of the inner pipe in the engineering pipeline body, preventing the inner pipe from shaking and affecting the operation of the flow meter. At the same time, the seal at the connection between the connecting pipe and the inner pipe, as well as the double-layer sealing ring at the connection between the ultrasonic transmitter and the ultrasonic receiver, ensure that all components are tightly connected, prevent water leakage, and ensure the sealing and structural stability of the pipeline system. 3. Furthermore, the connecting pipe is fixedly connected to the bellows. The bellows can adapt to the displacement and deformation of the engineering pipeline body caused by factors such as foundation settlement and temperature changes. While ensuring the sealing of the connection, it avoids damage to the flow monitoring components caused by pipeline deformation, thereby extending the overall service life of the pipeline and monitoring structure. 4. Dual flow meters are installed in the inner tube for collaborative monitoring. The turbine flow meter consists of built-in turbine blades and preamplifier, and the ultrasonic flow meter consists of ultrasonic transmitter and ultrasonic receiver. The turbine flow meter is suitable for conventional stable water flow measurement, and the ultrasonic flow meter has strong adaptability to changes in water flow state. The two flow meters work together to monitor the flow more comprehensively and accurately, and improve measurement accuracy. Furthermore, when one flow meter fails, the other can assist in providing flow data to ensure monitoring reliability. The metal shielding net installed on the outer layer of the inner tube can effectively shield external electromagnetic interference, prevent electromagnetic interference from affecting the signal transmission and processing of the turbine flow meter and ultrasonic flow meter, and ensure the accuracy and stability of the flow monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the engineering pipeline body in a top cross-section according to the present invention; Figure 3 This is a schematic diagram of the overall internal side sectional three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the side cross-section of the engineering pipeline body and the inner pipe of the present invention; Figure 5 This is a schematic diagram of the installation position of the turbine blades in the inner tube of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the inner tube and the limiting sleeve installed in the present invention; Figure 7 This is a schematic diagram of the disassembled three-dimensional structure of the rubber sleeve and the positioning rod of the present invention; Figure 8 This is a schematic diagram of the disassembled three-dimensional structure of the connecting pipe and the positioning rubber ring of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the inner tube and preamplifier installed in the present invention; Figure 10 It is a schematic diagram of the internal structure of the inner tube in a side section according to the present invention.

[0027] In the figure: 1. Engineering pipeline body; 2. Inner pipe; 3. Metal shielding mesh; 4. Preamplifier; 5. Turbine blades; 6. Ultrasonic transmitter; 7. Ultrasonic receiver; 8. Connecting pipe; 9. Bellows; 10. Positioning rubber ring; 11. Rubber sleeve; 12. Positioning rod; 13. Limit sleeve; 14. Maintenance sealing cover. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-10 The present invention provides a technical solution: a water conservancy project pipeline with a flow monitoring structure, comprising a project pipeline body 1, an inner pipe 2, a metal shielding mesh 3, a preamplifier 4, a turbine blade 5, an ultrasonic transmitter 6, an ultrasonic receiver 7, a connecting pipe 8, a bellows 9, a positioning rubber ring 10, a rubber sleeve 11, a positioning rod 12, a limit sleeve 13 and an inspection and sealing cover 14; Among them, the engineering pipeline body 1 is a water conservancy engineering pipeline, and the two ends of the engineering pipeline body 1 are outward-expanding opening structures. A vertical pipeline is opened on the surface of the engineering pipeline body 1 to form a three-way pipe structure, and the vertical pipeline of the engineering pipeline body 1 is threadedly connected to a maintenance sealing cover 14, wherein the maintenance sealing cover 14 is screwed into and closes the vertical pipeline opening of the engineering pipeline body 1 through a threaded connection; An inner pipe 2 is sleeved inside the engineering pipeline body 1, and both ends of the inner pipe 2 are aligned with the outward-expanded opening of the engineering pipeline body 1. The outer wall of the inner pipe 2 has two circles of trapezoidal protrusions, and a metal shielding mesh 3 is arranged on the outer sleeve of the inner pipe 2. The inner wall of the engineering pipeline body 1 is against the metal shielding mesh 3, and holes are provided on the surface of the metal shielding mesh 3. The vertical pipe of the engineering pipeline body 1 is aligned with the holes on the surface of the metal shielding mesh 3, and the two ends of the metal shielding mesh 3 are against the trapezoidal protrusions on the outer wall of the inner pipe 2, and the inner diameter of the inner pipe 2 is smaller than the inner diameter of the engineering pipeline body 1. The trapezoidal protrusion of the inner pipe 2 has two inclined surfaces, and one side of the inclined surface is penetrated by the ultrasonic transmitter 6 and the ultrasonic receiver 7. A turbine blade 5 is installed in the inner pipe 2, and a preamplifier 4 is provided above the turbine blade 5, and the preamplifier 4 penetrates the inner pipe 2. The preamplifier 4 and the turbine blade 5 constitute a turbine flowmeter, and the two ends of the turbine blade 5 are connected to the front guide bracket through bearings, and the front guide bracket is fixed to the inner wall of the inner pipe 2. A magnetic conductor is embedded in the turbine blade 5; Combined with the drawings in the specification Figures 1-10 As shown, the engineering pipeline body 1 is made of high-strength corrosion-resistant material and is manufactured through an extrusion molding process. Its two ends are processed into an outward-expanding opening structure. Vertical pipelines are opened on its surface according to the designed position and size to form a three-way pipe structure. Internal threads are processed on the inner wall of the vertical pipeline for connecting the maintenance sealing cover 14. Figure 1-Figure 3 As shown, the inner tube 2 and the engineering pipeline body 1 are made of the same material. During manufacturing, space and interfaces for installing turbine blades 5, preamplifier 4, ultrasonic transmitter 6 and ultrasonic receiver 7 are reserved at corresponding positions inside the inner tube 2. The trapezoidal protrusion on the outer ring of the inner tube 2 is as shown. Figure 2-Figure 7 as well as Figure 9-10 As shown, the inner tube 2 is inserted into the engineering pipeline body 1, and the trapezoidal protrusions on its outer ring are against the inner wall of the engineering pipeline body 1, which initially limits the stability of the connection between the engineering pipeline body 1 and the inner tube 2. The metal shielding mesh 3 between the two trapezoidal protrusions of the inner tube 2 is as shown in FIG. Figure 2-Figure 3 As shown, the metal shielding mesh 3 is manufactured using a metal weaving process to ensure that it can be tightly sheathed outside the inner pipe 2. Holes are opened in the metal shielding mesh 3 to align with the vertical pipes of the engineering pipeline body 1, as shown in FIG. Figure 2-Figure 4 As shown, the opening is used for later maintenance of the turbine flowmeter and the ultrasonic flowmeter. The metal shielding mesh 3 prevents electromagnetic interference from affecting the signal transmission and processing of the turbine flowmeter and the ultrasonic flowmeter, thereby ensuring the accuracy and stability of the flow monitoring data. The turbine flowmeter's turbine blades 5 are made of lightweight, high-strength, and wear-resistant stainless steel. Their blade shape and angle are optimized for fluid dynamics to enhance sensitivity to water flow impact. High-precision bearings are installed at both ends, cooperating with the front guide bracket to ensure smooth rotation. The preamplifier 4 is mounted above the turbine blades 5, ensuring accurate relative positioning relative to the turbine blades 5. Electrical connections to external signal processing equipment are also established. The turbine blades 5 and preamplifier 4 are assembled into a turbine flowmeter, which is then installed and secured within the inner tube 2. During operation, the internal magnet of the turbine blades 5 rotates, cooperating with the magnetic coupling device connected to the preamplifier 4 to monitor the flow rate of the liquid within the inner tube 2. The trapezoidal protrusion of the inner tube 2 is penetrated by the ultrasonic transmitter 6 and the ultrasonic receiver 7, and the ultrasonic transmitter 6 is above the ultrasonic receiver 7. A double-layer sealing ring is provided at the connection between the ultrasonic transmitter 6 and the ultrasonic receiver 7, and the ultrasonic transmitter 6 and the ultrasonic receiver 7 constitute an ultrasonic flow meter, and two ultrasonic flow meters are installed in the inner tube 2. The trapezoidal protrusion of the inner tube 2 is provided with a limit sleeve 13 on the inclined surface, and the positioning rod 12 is fixed equidistantly on the surface of the limit sleeve 13. The positioning rod 12 is inserted into the rubber sleeve 11, and the rubber sleeve 11 is equidistantly arranged on the end face of the positioning rubber ring 10, and the positioning rubber ring 10 is positioned at an equal distance. The sleeve is arranged at the port of the inner tube 2, and the connecting pipe 8 is embedded at the port of the inner tube 2, and the port of the connecting pipe 8 is fixedly connected to one end of the bellows 9, the connecting pipe 8 is set to a bucket-shaped structure, and a seal is provided at the connection between the connecting pipe 8 and the inner tube 2, the outer wall surface of the positioning rubber ring 10 is against the inner wall surface of the engineering pipeline body 1, and the opening of the connection between the positioning rubber ring 10 and the connecting pipe 8 has a docking groove, a magnetic sheet is embedded in the rubber sleeve 11, and the magnetic sheet of the rubber sleeve 11 is attracted to the metal sheet at the port of the positioning rod 12, the limiting sleeve 13 is set to a bucket shape, and the surface of the limiting sleeve 13 is against the inner wall surface of the engineering pipeline body 1; Combined with the drawings in the specification Figures 1-10 As shown, a double-layer sealing ring is installed at the connection between the ultrasonic transmitter 6 and the ultrasonic receiver 7 to ensure sealing. The ultrasonic transmitter 6 and the ultrasonic receiver 7 are passed through the trapezoidal protrusion of the inner tube 2 and fixed to ensure the relative position accuracy and installation firmness of the two. Figure 3 and Figure 10 As shown, an ultrasonic flow meter is formed and installed at a corresponding position in the inner tube 2, and two ultrasonic flow meters are installed in the inner tube 2; The port of the inner pipe 2 is nested with the connecting pipe 8. The connecting pipe 8 adopts a bucket-shaped structure and is made of corrosion-resistant metal. A seal is installed at the connection between it and the inner pipe 2, and the bellows 9 is a corrosion-resistant stainless steel corrugated hose. The bellows 9 is against the port of the engineering pipeline body 1. The external port of the bellows 9 is fixedly connected to the pipeline of the water conservancy project through a sealing ring and bolts. The flexibility of the bellows 9 can adapt to the displacement and deformation of the engineering pipeline body 1 caused by factors such as foundation settlement and temperature change. While ensuring the sealing of the connection, it avoids damage to the flow monitoring components due to pipeline deformation, and extends the overall service life of the pipeline and monitoring structure. A positioning rubber ring 10 is arranged on the outer sleeve of the inner pipe 2 and the connecting pipe 8 to further limit the opening of the connection and improve the sealing effect. At the same time, the positioning rubber ring 10 is against the inner wall surface of the engineering pipeline body 1. Figure 2-Figure 4 As shown, the inner tube 2 is maintained stable when water flows through, and the rubber sleeve 11 of the positioning rubber ring 10 is inserted by the positioning rod 12. The suction force of the magnetic sheet and the metal sheet is used to dock the limiting sleeve 13 with the positioning rubber ring 10 to limit the sliding of the inner tube 2, thereby further enhancing the positioning stability of the inner tube 2 in the engineering pipeline body 1 and preventing the inner tube from shaking and affecting the operation of the flow meter. At the same time, the seal at the connection between the connecting pipe 8 and the inner tube 2, and the double-layer sealing ring at the connection between the ultrasonic transmitter 6 and the ultrasonic receiver 7 ensure that the components are tightly connected to prevent water leakage and ensure the sealing and structural stability of the pipeline system.

[0030] Working principle: When using the water conservancy project pipeline with a flow monitoring structure, first, when water flows through the project pipeline body 1 and enters the inner pipe 2, the turbine flowmeter composed of the turbine blades 5 and the preamplifier 4, wherein the inner magnetic conductor of the turbine blades 5 rotates, and cooperates with the magnetic coupling device connected to the preamplifier 4 to calculate the flow rate of the water flow in the pipeline using the principle of electromagnetic induction and the preamplifier 4. The ultrasonic flowmeters on both sides of the turbine flowmeter monitor the flow of the liquid flowing in the inner pipe 2 through the ultrasonic transmitter 6 and the ultrasonic receiver 7. Through the coordinated work of the two, the flow rate can be monitored more comprehensively and accurately, and the measurement accuracy is improved. When one flowmeter fails, the other can assist in providing flow data to ensure monitoring reliability; The metal shielding mesh 3 sleeved on the outer layer of the inner tube 2 can effectively shield external electromagnetic interference, prevent electromagnetic interference from affecting the signal transmission and processing of the turbine flowmeter and the ultrasonic flowmeter, and ensure the accuracy and stability of the flow monitoring data. During maintenance, the internal inspection is carried out by rotating the opening of the inspection sealing cover 14 through the hole of the metal shielding mesh 3. The limiting sleeve 13 sleeved on the inclined surface of the inner tube 2 is nested with the rubber sleeve 11 through the positioning rod 12, and then cooperates with the internal magnetic structure to make the positioning rubber ring 10 and the limiting sleeve 13 dock, thereby limiting the sliding of the inner tube 2. The positioning rubber ring 10 limits the connection between the inner tube 2 and the connecting pipe 8 to maintain a seal, and the positioning rubber ring 10 blocks the gap between the engineering pipeline body 1 and the inner tube 2, further providing a sealing closure for the inside of the engineering pipeline body 1 to prevent water leakage and ensure the sealing and structural stability of the pipeline system; The bellows 9 at one end of the connecting pipe 8 is connected to the pipeline of the water conservancy project through a sealing ring and bolts. Due to the flexibility of the bellows 9, it can adapt to the displacement and deformation of the project pipeline body 1 caused by factors such as foundation settlement and temperature changes. While ensuring the sealing of the connection, it avoids damage to the flow monitoring components due to pipeline deformation, thereby extending the overall service life of the pipeline and monitoring structure.

[0031] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A water conservancy project pipeline with a flow monitoring structure, comprising: An engineering pipeline body (1) is a water conservancy engineering pipeline, wherein both ends of the engineering pipeline body (1) are outward-expanding opening structures, a vertical pipeline is opened on the surface of the engineering pipeline body (1) to form a three-way pipe structure, and the vertical pipeline of the engineering pipeline body (1) is threadedly connected to a maintenance sealing cover (14), wherein the maintenance sealing cover (14) is screwed into and closes the vertical pipeline opening of the engineering pipeline body (1) through a threaded connection; The invention is characterized in that: an inner tube (2) is provided inside the engineering pipeline body (1), and both ends of the inner tube (2) are aligned with the outward expansion opening of the engineering pipeline body (1), the outer wall of the inner tube (2) has two circles of trapezoidal protrusions, and the outer shell of the inner tube (2) is provided with a metal shielding net (3), a turbine blade (5) is installed in the inner tube (2), and a preamplifier (4) is provided above the turbine blade (5), and the preamplifier (4) passes through the inner tube (2); The trapezoidal protrusion of the inner tube (2) is penetrated by the ultrasonic transmitter (6) and the ultrasonic receiver (7), and the ultrasonic transmitter (6) is above the ultrasonic receiver (7). The inclined surface of the trapezoidal protrusion of the inner tube (2) is provided with a limiting sleeve (13), and the surface of the limiting sleeve (13) is fixed with a positioning rod (12) at equal intervals. The positioning rod (12) is inserted into the rubber sleeve (11), and the rubber sleeve (11) is arranged at equal intervals on the end face of the positioning rubber ring (10). The positioning rubber ring (10) is sleeved at the port of the inner tube (2), and the port of the inner tube (2) is embedded in the connecting pipe (8), and the port of the connecting pipe (8) is fixedly connected to one end of the corrugated tube (9).

2. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The inner wall surface of the engineering pipeline body (1) abuts against the metal shielding net (3), and holes are provided on the surface of the metal shielding net (3).

3. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The vertical pipe of the engineering pipeline body (1) is aligned with the surface holes of the metal shielding net (3), and the two ends of the metal shielding net (3) are against the trapezoidal protrusions on the outer wall of the inner pipe (2), and the inner diameter of the inner pipe (2) is smaller than the inner diameter of the engineering pipeline body (1).

4. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The trapezoidal protrusion of the inner tube (2) has two inclined surfaces, and one inclined surface is penetrated by the ultrasonic transmitter (6) and the ultrasonic receiver (7).

5. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The preamplifier (4) and the turbine blade (5) constitute a turbine flowmeter, and both ends of the turbine blade (5) are connected to a front guide bracket via bearings, and the front guide bracket is fixed to the inner wall surface of the inner tube (2), and a magnetic conductor is embedded in the turbine blade (5).

6. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: A double-layer sealing ring is provided at the connection between the ultrasonic transmitter (6) and the ultrasonic receiver (7), and the ultrasonic transmitter (6) and the ultrasonic receiver (7) constitute an ultrasonic flow meter, and two ultrasonic flow meters are installed in the inner tube (2).

7. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The connecting pipe (8) is configured as a bucket-shaped structure, and a sealing member is provided at the connection between the connecting pipe (8) and the inner pipe (2).

8. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The outer wall surface of the positioning rubber ring (10) abuts against the inner wall surface of the engineering pipeline body (1), and a butting groove is provided at the opening of the connection between the positioning rubber ring (10) and the connecting pipe (8).

9. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: A magnetic sheet is embedded in the rubber sleeve (11), and the magnetic sheet of the rubber sleeve (11) is attracted to the metal sheet at the end of the positioning rod (12).

10. The hydraulic engineering pipeline with a flow monitoring structure according to claim 1, characterized in that: The limiting sleeve (13) is configured to be bucket-shaped, and the surface of the limiting sleeve (13) abuts against the inner wall surface of the engineering pipeline body (1).

Images