Pipeline flow detection device

Abstract

The utility model provides a pipeline flow detection device. The pipeline flow detection device comprises a horizontal inlet pipe, a vertical pipe, an arc-shaped pipe, a horizontal outlet pipe and a flow meter, the horizontal inlet pipe is connected with the upper end of the vertical pipe, the lower end of the vertical pipe is connected with the inlet end of the arc-shaped pipe, and the outlet of the arc-shaped pipe is connected with the horizontal outlet pipe; and the flow meter is horizontally arranged at the vertical pipe. According to the utility model, the flowing of fluid can be stabilized, the generation of vortex is reduced, the influence of sediments and bubbles on measurement is avoided, and the stability and precision of measurement can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipeline flow measurement technology, and specifically to a pipeline flow detection device. Background Technology

[0002] An electromagnetic flowmeter is an instrument that measures the flow rate of liquids using Faraday's law of electromagnetic induction. It calculates the flow velocity and flow rate by measuring the induced electromotive force generated in a conductive liquid within a magnetic field. This type of flowmeter is suitable for measuring liquids with good conductivity, such as water, acids, and alkalis.

[0003] To ensure measurement accuracy, the pipe must be completely filled with liquid, a state known as "full pipe." This is because electromagnetic flowmeters measure the conductivity of liquids, and the liquid's effect on the instrument depends on its motion within a magnetic field. If air bubbles or air are present in the pipe, they will impede the movement of the conductive liquid, leading to measurement errors. Therefore, it is necessary to develop a pipe flow measurement device to work with electromagnetic flowmeters. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline flow detection device that can stabilize fluid flow, reduce the generation of eddies, avoid the influence of sediments and bubbles on the measurement, and ensure the stability and accuracy of the measurement.

[0005] To achieve the above objectives, the pipeline flow detection device of this utility model includes a horizontal inlet pipe, a vertical pipe, an arc-shaped pipe, a horizontal outlet pipe, and a flow meter;

[0006] The horizontal inlet pipe is connected to the upper end of the vertical pipe, the lower end of the vertical pipe is connected to the inlet end of the arc-shaped pipe, and the outlet of the arc-shaped pipe is connected to the horizontal outlet pipe; the flow meter is horizontally installed at the vertical pipe.

[0007] The bottom of the arc-shaped tube is equipped with a solenoid valve.

[0008] An electric pipe cleaning device is installed below the solenoid valve, and the spiral flexible shaft of the electric pipe cleaning device is assembled at the outlet of the solenoid valve. Pressure sensors are installed in the horizontal inlet and outlet pipes, respectively. These pressure sensors are connected to a control device. When the detected liquid pressure difference between the horizontal inlet and outlet pipes exceeds a set threshold, the control device opens the solenoid valve and simultaneously controls the electric pipe cleaning device to operate, causing its spiral flexible shaft to extend into the arc-shaped pipe for cleaning. The electric pipe cleaning device can be a GQ100 model.

[0009] The control device is a microcontroller.

[0010] The connection between the horizontal inlet pipe and the vertical pipe is provided with a mud-blocking slope that slopes upward along the direction of water flow, and the upper end of the mud-blocking slope is connected to the inlet end of the arc-shaped pipe.

[0011] The angle between the mud-blocking slope and the horizontal plane is 40-60°.

[0012] The concave part of the arc-shaped tube faces upward, forming a diving bend.

[0013] The flow meter mentioned is an electromagnetic flow meter.

[0014] When this utility model is in use, the horizontal inlet pipe and the horizontal outlet pipe can be connected to the corresponding pipelines through flanges, or welded to the corresponding pipelines.

[0015] To achieve a full-pipe liquid state, this invention features an arc-shaped pipe structure that forms a U-shaped water trap, allowing a water column to form at that location, effectively isolating air and air bubbles in the pipe.

[0016] To prevent the arc-shaped pipe from being filled with sludge, this invention features a specially designed sludge-blocking slope to prevent sludge from entering the pipe. At the same time, a solenoid valve is installed at the bottom of the arc-shaped pipe. This solenoid valve can agitate the sludge to form a certain mixing layer, and then open the solenoid valve to discharge the liquid inside.

[0017] In this invention, the flow meter is installed on a vertical pipe, perpendicular to the pipe. This prevents uneven phase distribution or phase separation in liquid-solid two-phase media at low flow rates, thereby reducing the resulting additional errors. Furthermore, this installation method helps eliminate the influence of air bubbles and solid particles, improving measurement accuracy. Moreover, when measuring liquid-solid two-phase media, this installation method ensures more uniform wear of the lining around the sensor, thus extending the sensor's service life.

[0018] This invention can be used in harsh environments such as high temperature, high pressure, dust, vibration, and humidity, exhibiting strong adaptability and a wide measurement range. This makes it suitable not only for conventional pipeline flow measurement but also for use in special environments.

[0019] This invention, based on an arc-shaped tube structure, utilizes the principle of centrifugal force to measure the flow rate of the medium inside a pipe, exhibiting high repeatability accuracy. This means that under the same measurement conditions, the flow meter can provide consistent and accurate flow data.

[0020] The advantages of this invention over existing technologies lie in its high precision, simple installation process, low maintenance cost, wide applicability, and high reliability, which make it an ideal choice for many industrial applications. Attached Figure Description

[0021] Figure 1A schematic diagram of the structure of a pipeline flow detection device provided by this utility model;

[0022] The numbering, structure, and names of each part in the diagram are as follows:

[0023] 1-Horizontal inlet pipe, 2-Vertical pipe, 3-Arc-shaped pipe, 4-Horizontal outlet pipe, 5-Flow meter, 6-Solenoid valve, 7-Mud barrier slope, 8-Submersible bend. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example 1

[0025] The pipeline flow detection device includes a horizontal inlet pipe 1, a vertical pipe 2, an arc-shaped pipe 3, a horizontal outlet pipe 4, and a flow meter 5;

[0026] The horizontal inlet pipe 1 is connected to the upper end of the vertical pipe 2, the lower end of the vertical pipe 2 is connected to the inlet end of the arc-shaped pipe 3, and the outlet of the arc-shaped pipe 3 is connected to the horizontal outlet pipe 4; the flow meter 5 is horizontally installed at the vertical pipe 2. The flow meter 5 is an electromagnetic flow meter.

[0027] The concave portion of the arc-shaped pipe 3 faces upwards, forming a submersible bend 8. A solenoid valve 6 is installed at the bottom of the arc-shaped pipe 3. An electric pipe cleaning device is installed below the solenoid valve 6, with its spiral flexible shaft mounted at the outlet of the solenoid valve 6. Pressure sensors are installed in the horizontal inlet pipe 1 and the horizontal outlet pipe 4, respectively. These pressure sensors are connected to a control device. When the detected liquid pressure difference between the horizontal inlet pipe 1 and the horizontal outlet pipe 4 exceeds a set threshold, the control device opens the solenoid valve 6, simultaneously controlling the electric pipe cleaning device to operate, allowing its spiral flexible shaft to extend into the arc-shaped pipe 3 for unblocking. The electric pipe cleaning device can be a GQ100 type. The control device is a microcontroller.

[0028] The connection between the horizontal inlet pipe 1 and the vertical pipe 2 is provided with a mud-blocking slope 7 that slopes upward along the water flow direction. The upper end of the mud-blocking slope 7 is connected to the inlet end of the arc-shaped pipe 3. The angle between the mud-blocking slope 7 and the horizontal plane is 45°.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 pipeline flow detection device, comprising a horizontal inlet pipe (1), a vertical pipe (2), an arc-shaped pipe (3), a horizontal outlet pipe (4), and a flow meter (5), characterized in that: The horizontal inlet pipe (1) is connected to the upper end of the vertical pipe (2), the lower end of the vertical pipe (2) is connected to the inlet end of the arc-shaped pipe (3), and the outlet of the arc-shaped pipe (3) is connected to the horizontal outlet pipe (4); the flow meter (5) is horizontally installed at the vertical pipe (2).

2. The pipeline flow detection device as described in claim 1, characterized in that: The bottom of the arc-shaped tube (3) is equipped with a solenoid valve (6).

3. The pipeline flow detection device as described in claim 2, characterized in that: An electric pipe clearing device is provided below the solenoid valve (6), and the spiral elastic flexible shaft of the electric pipe clearing device is assembled at the outlet of the solenoid valve (6). Pressure sensors are respectively installed in the horizontal inlet pipe (1) and the horizontal outlet pipe (4). The pressure sensors are connected to the control device. When the detected liquid pressure difference between the horizontal inlet pipe (1) and the horizontal outlet pipe (4) exceeds the set threshold, the control device controls the solenoid valve (6) to open, and simultaneously controls the electric pipe clearing device to work, so that its spiral elastic flexible shaft extends into the arc-shaped pipe (3) for clearing.

4. The pipeline flow detection device as described in claim 3, characterized in that: The control device is a microcontroller.

5. The pipeline flow detection device as described in claim 1, characterized in that: The connection between the horizontal inlet pipe (1) and the vertical pipe (2) is provided with a mud-blocking slope (7) that slopes upward along the direction of water flow. The upper end of the mud-blocking slope (7) is connected to the inlet end of the arc-shaped pipe (3).

6. The pipeline flow detection device as described in claim 5, characterized in that: The angle between the mud-blocking slope (7) and the horizontal plane is 40-60°.

7. The pipeline flow detection device as described in claim 1, characterized in that: The concave part of the arc-shaped tube (3) faces upward, forming a diving bend (8).

8. The pipeline flow detection device as described in claim 1, characterized in that: The flow meter (5) is an electromagnetic flow meter.

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