Water conservancy and hydropower engineering discharged flow monitoring device

Abstract

The utility model relates to the technical field of flow monitoring devices, in particular to a water conservancy and hydropower engineering discharged flow monitoring device which comprises a connecting pipe, the top of the connecting pipe is fixedly provided with a flow meter body through a bolt, and the monitoring end of the flow meter body is located in the connecting pipe. The connecting pipe has the advantages that after the positioning ring is tightly attached to the first flange, the second flange and the first flange are located among the limiting plates, the second flange and the first flange can be preliminarily positioned through the limiting plates, a worker does not need to hold the connecting pipe by hand, the connecting pipe can be conveniently assembled, and the assembling efficiency is improved. The nut is inserted into the locking groove, the bolt and the nut are assembled, the nut does not need to be clamped in the assembling process, the bolt can be fastened more conveniently, finally, the positioning ring and the first flange are assembled through the fastening screw, the nut can be locked through the limiting ring, and the nut can be prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of flow monitoring devices, in particular to a downstream flow monitoring device for water conservancy and hydropower projects. Background Art

[0002] With the deepening of the understanding of ecological environment protection, the requirement of building a real-time monitoring system for downstream ecological flow has been put forward for water conservancy and hydropower projects. The real-time monitoring equipment for downstream ecological flow of water conservancy and hydropower projects refers to a device that measures the quality or amount of water flow discharged from water conservancy and hydropower projects.

[0003] At present, flow meters are generally used for monitoring. By installing the flow meter at the connection of the pipeline, the water flow rate can be detected in real time. The current flow meter usually includes a connecting pipe, on which a monitoring mechanism is installed, and connecting flanges are welded at both ends of the connecting pipe. The two ends of the connecting pipe can be connected to the water pipe through the connecting flanges using bolts. However, when installing the connecting pipe, the staff is required to align the connecting flange on the connecting pipe with the connecting flange on the water pipe. It is more laborious for the staff to hold the connecting pipe, and it is not convenient to align the two connecting flanges, which will affect the installation efficiency of the flow monitoring device. Therefore, a downstream flow monitoring device for water conservancy and hydropower projects is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a discharge flow monitoring device for a water conservancy and hydropower project to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one aspect provides a downstream flow monitoring device for a water conservancy and hydropower project, including a connecting pipe, a flow meter body is fixedly installed on the top of the connecting pipe by bolts, the monitoring end of the flow meter body is located inside the connecting pipe, first flanges are welded at both ends of the connecting pipe, water pipes are arranged on the outer sides of the two first flanges, a second flange is welded at one end of the water pipe close to the first flange, the second flange is fitted with the first flange, a plurality of bolts are rotatably connected to one side of the second flange, a nut is threadedly connected to the threaded portion of each bolt, the nut portion of the bolt is fitted with the second flange, the nut is fitted with the first flange, two symmetrically arranged positioning rings are slidably connected to the outer surface of the connecting pipe, the positioning rings are fitted with the first flange, a plurality of limit plates are fixedly connected to the outer surface of the positioning ring, and the first flange and the second flange are both slidably connected to the limit plates.

[0007] Preferably, any of the above schemes is that a guide protrusion is fixedly connected to the inner wall of the positioning ring, a guide groove is provided on the outer surface of the connecting pipe, and the guide protrusion is slidably connected to the connecting pipe via the guide groove.

[0008] Preferably, any of the above solutions has a magnet disk embedded and fixedly mounted on one side of the positioning ring close to the first flange, and the magnet disk is in contact with the first flange.

[0009] Preferably, any of the above schemes has a locking groove extending through the side surface of the positioning ring, and the nut is slidably connected to the positioning ring via the locking groove.

[0010] Preferably, any of the above schemes is that a fastening screw is rotatably connected to one side of the positioning ring, and a threaded portion of the fastening screw is threadedly connected to the first flange.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] When installing the flow monitoring device, the connecting pipe can be placed between the two water pipes until the second flange corresponds to the first flange, and then the positioning ring can be pushed to slide outward along the guide groove. The guidance of the guide groove can make the movement of the positioning ring more stable until the positioning ring is in close contact with the first flange. At this time, the second flange and the first flange are located between several limit plates. Through the setting of the limit plates, the second flange and the first flange can be initially positioned, and the staff does not need to hold the connecting pipe by hand, which can facilitate the assembly of the connecting pipe, and insert the nut into the locking groove, assemble the bolt and the nut, and there is no need to clamp the nut during assembly, which can make it easier to tighten the bolt. Finally, the fastening screw is used to assemble the positioning ring and the first flange, and the nut can be locked by the limit ring to prevent the nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the assembly of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the water pipe of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the positioning ring of the utility model.

[0018] In the figure: 1-connecting pipe, 2-flowmeter body, 3-first flange, 4-water pipe, 5-second flange, 6-bolt, 7-nut, 8-positioning ring, 9-limiting plate, 10-guide protrusion, 11-guide groove, 12-magnet disk, 13-locking groove, 14-fastening screw. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0020] like Figures 1 to 5 As shown, a downstream flow monitoring device for a water conservancy and hydropower project comprises a connecting pipe 1, a flow meter body 2 is fixedly installed on the top of the connecting pipe 1 by bolts, a monitoring end of the flow meter body 2 is located inside the connecting pipe 2, first flanges 3 are welded at both ends of the connecting pipe 1, water pipes 4 are arranged on the outsides of the two first flanges 3, a second flange 5 is welded at one end of the water pipe 4 close to the first flange 3, the second flange 5 is fitted with the first flange 3, a plurality of bolts 6 are rotatably connected to one side of the second flange 5, a nut 7 is threadedly connected to the threaded portion of each bolt 6, a nut portion of the bolt 6 is fitted with the second flange 5, the nut 7 is fitted with the first flange 3, two symmetrically arranged positioning rings 8 are slidably connected to the outer surface of the connecting pipe 1, the positioning ring 8 is fitted with the first flange 3, a plurality of limit plates 9 are fixedly connected to the outer surface of the positioning ring 8, and the first flange 3 and the second flange 5 are both slidably connected to the limit plates 9.

[0021] As an optional technical solution of the present invention, a guide protrusion 10 is fixedly connected to the inner wall of the positioning ring 8, and a guide groove 11 is provided on the outer surface of the connecting tube 1. The guide protrusion 10 is slidably connected to the connecting tube 1 through the guide groove 11. The positioning ring 8 slides outward along the guide groove 11, and the guidance of the guide groove 11 can make the movement of the positioning ring 8 more stable.

[0022] As an optional technical solution of the present invention, a magnet disk 12 is embedded and fixedly installed on one side of the positioning ring 8 close to the first flange 3. The magnet disk 12 fits the first flange 3. The first flange 3 can be attracted by the magnet disk 12, and the limiting ring 8 and the first flange 3 can be preliminarily assembled to facilitate the installation of the fastening screws 14.

[0023] As an optional technical solution of the present invention, a locking groove 13 is formed through the side of the positioning ring 8, and the nut 7 is slidably connected to the positioning ring 8 through the locking groove 13. The positioning ring 8 and the first flange 3 are assembled using a fastening screw 14. The nut 7 can be locked by the limiting ring 8 to prevent the nut 7 from loosening.

[0024] As an optional technical solution of the present invention, a fastening screw 14 is rotatably connected to one side of the positioning ring 8, and the threaded portion of the fastening screw 14 is threadedly connected to the first flange 3. The positioning ring 8 can be stably installed on the first flange 3 through the fastening screw 14.

[0025] A discharge flow monitoring device for a water conservancy and hydropower project, the working principle is as follows:

[0026] 1): When installing the flow monitoring device, the connecting pipe 1 can be placed between the two water pipes 4 until the second flange 5 corresponds to the first flange 3 , and then the positioning ring 8 is pushed to slide outward along the guide groove 11 .

[0027] 2): Until the positioning ring 8 is in close contact with the first flange 3, the second flange 5 and the first flange 3 are located between a plurality of limiting plates 9. By setting the limiting plates 9, the second flange 5 and the first flange 3 can be initially positioned without the need for the staff to hold the connecting pipe 1.

[0028] 3): Insert the nut 7 into the locking groove 13, assemble the bolt 6 and the nut 7, and there is no need to clamp the nut 7 during assembly, which can make it easier to tighten the bolt 6.

[0029] To sum up, for the downstream flow monitoring device of the water conservancy and hydropower project, when the flow monitoring device is installed, the connecting pipe 1 can be placed between the two water pipes 4, until the second flange 5 corresponds to the first flange 3, and then the positioning ring 8 is pushed to slide outward along the guide groove 11. The positioning ring 8 can be guided by the guide groove 11 to move more stably until the positioning ring 8 is in close contact with the first flange 3. At this time, the second flange 5 and the first flange 3 are located between a plurality of limit plates 9. By setting the limit plates 9, the second flange 5 and the first flange 3 can be initially positioned, and the staff does not need to hold the connecting pipe 1, which can facilitate the assembly of the connecting pipe 1, and insert the nut 7 into the locking groove 13, assemble the bolt 6 and the nut 7, and there is no need to clamp the nut 7 during assembly, which can facilitate the tightening of the bolt 6. Finally, the fastening screw 14 is used to assemble the positioning ring 8 and the first flange 3, and the nut 7 can be locked by the limit ring 8 to prevent the nut 7 from loosening.

Claims

1. A discharge flow monitoring device for a water conservancy and hydropower project, characterized in that: The invention comprises a connecting pipe (1), a flow meter body (2) is fixedly mounted on the top of the connecting pipe (1) by means of bolts, a monitoring end of the flow meter body (2) is located inside the connecting pipe (1), first flanges (3) are welded at both ends of the connecting pipe (1), water pipes (4) are arranged on the outsides of the two first flanges (3), a second flange (5) is welded at one end of the water pipe (4) close to the first flange (3), the second flange (5) is fitted with the first flange (3), and a plurality of flanges (5) are rotatably connected to one side of the second flange (5). Bolts (6), the threaded portion of each bolt (6) is threadedly connected to a nut (7), the nut portion of the bolt (6) is in contact with the second flange (5), the nut (7) is in contact with the first flange (3), the outer surface of the connecting pipe (1) is slidably connected to two symmetrically arranged positioning rings (8), the positioning rings (8) are in contact with the first flange (3), the outer surface of the positioning rings (8) is fixedly connected to a plurality of limiting plates (9), and the first flange (3) and the second flange (5) are both slidably connected to the limiting plates (9).

2. A water conservancy and hydropower project downstream flow monitoring device according to claim 1, characterized in that: A guide protrusion (10) is fixedly connected to the inner wall of the positioning ring (8), a guide groove (11) is provided on the outer surface of the connecting pipe (1), and the guide protrusion (10) is slidably connected to the connecting pipe (1) via the guide groove (11).

3. A water conservancy and hydropower project downstream flow monitoring device according to claim 2, characterized in that: A magnet disk (12) is embedded and fixedly mounted on one side of the positioning ring (8) close to the first flange (3), and the magnet disk (12) is in close contact with the first flange (3).

4. A water conservancy and hydropower project downstream flow monitoring device according to claim 3, characterized in that: A locking groove (13) is formed through the side surface of the positioning ring (8), and the nut (7) is slidably connected to the positioning ring (8) through the locking groove (13).

5. A water conservancy and hydropower project downstream flow monitoring device according to claim 4, characterized in that: A fastening screw (14) is rotatably connected to one side of the positioning ring (8), and a threaded portion of the fastening screw (14) is threadedly connected to the first flange (3).

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