Flow regulation mechanical device of runner flowmeter

Abstract

The utility model relates to the technical field of flow meters, and discloses a flow adjusting mechanical device of a runner flow meter, which comprises a flow meter main body, a liquid inlet joint and a liquid outlet joint are respectively arranged on the upper wall and the lower wall of the shell, the impellers are fixedly arranged on the same rotating shaft, and the rotating shaft is rotatably connected in the shell. The rear end of the shell extends out of the shell and is fixedly provided with a first positioner, the rear side of the shell is fixedly provided with a second positioner matched with the first positioner, and the front side of the shell is detachably provided with a shell cover; the flow adjusting pipe is arranged on the liquid inlet connector in a sealed connection mode and is detachable, and an electric control valve is arranged on the flow adjusting pipe. The utility model has the advantages that an external rotating speed sensing structure is used, the accuracy is higher, errors are not easy to occur, and the flow can be directly controlled by using control equipment.

Description

A flow regulating mechanical device for a rotary flow meter Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically to a flow regulating mechanical device for a rotary flow meter. Background Technology

[0002] A rotary flow meter is an instrument that determines flow rate by measuring the rotational speed of a rotor driven by the fluid. Its main structure includes a rotor placed in the fluid; the rotor can be an impeller or a turbine. When the fluid flows through it, the fluid's kinetic energy drives the rotor to rotate, and the rotor's rotational speed is proportional to the fluid velocity. Internal sensors, such as electromagnetic induction devices, detect the rotor's rotational speed and convert it into an electrical signal. This signal processing system then calculates and displays the fluid flow rate. This flow meter features high measurement accuracy, good repeatability, and low pressure loss, and is widely used in measuring fluids such as water and oil, especially suitable for measuring fluids with low Reynolds numbers and high viscosity.

[0003] Most current rotary flow meters use built-in sensor designs. These sensors are subject to constant fluid erosion, making them prone to mechanical wear and signal drift, leading to gradually increasing measurement errors and affecting the accuracy of flow monitoring. After data is transmitted to the computer, the flow valves still need to be manually loosened or tightened based on the feedback results: operators must first analyze the data and then adjust the valves one by one, a cumbersome and time-consuming process. Especially in high-frequency adjustment scenarios, the response lag may cause control deviations. Summary of the Invention

[0004] To solve the above-mentioned problems, this utility model proposes a flow regulating mechanical device for a rotary flow meter that uses an external speed sensing structure, resulting in higher accuracy, less susceptibility to errors, and direct flow control via control equipment.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a flow regulating mechanical device for a rotary flow meter, comprising:

[0006] The flow meter body includes a housing and several impellers. The upper and lower walls of the housing are respectively provided with liquid inlet and liquid outlet connectors. The impellers are fixed on the same rotating shaft. The rotating shaft is rotatably connected inside the housing. Its rear end extends out of the housing and is fixedly provided with a positioner one. The rear side of the housing is fixedly provided with a positioner two that matches the positioner one. The front side of the housing is detachably provided with a housing cover.

[0007] The flow regulating pipe is sealed and detachable on the inlet connector, and is equipped with an electrically controlled valve.

[0008] Furthermore, the impellers are equidistantly distributed around the shaft.

[0009] Furthermore, a sealed bearing is provided at the junction of the rear side wall of the housing and the rotating shaft.

[0010] Furthermore, a support plate is fixedly provided on the upper rear side of the housing, and the second locator is fixedly provided below the extended end of the support plate, which is located directly above the first locator.

[0011] Furthermore, the shell cover is threaded on the front side of the shell, and its side wall is provided with anti-slip texture.

[0012] Furthermore, a mounting bracket is fixedly provided at the bottom of the housing, and the mounting bracket is provided with several mounting holes.

[0013] Compared with existing technologies, the advantages of this invention are as follows: Positioners one and two are located outside the housing. This design avoids interference from the complex internal fluid environment on the sensing elements, enabling more stable monitoring of the shaft rotation position and precise capture of impeller speed changes. This results in more accurate flow measurement data and reduces errors caused by internal fluid disturbances or component wear. Simultaneously, the electrically controlled valve on the flow regulating pipe can be connected to a remote control device. Operators can directly send commands to adjust the valve opening via the control device, achieving real-time and precise control of the fluid flow rate without the need for manual on-site operation. This improves the convenience and timeliness of control, avoids errors that may occur with manual adjustment, and realizes integrated operation from precise measurement to precise control, making the entire flow regulation process more efficient and reliable. Attached Figure Description

[0014] Figure 1 is a perspective view of this utility model;

[0015] Figure 2 is a perspective view of this utility model;

[0016] Figure 3 is a front view of this utility model;

[0017] Figure 4 is a side view of this utility model;

[0018] Figure 5 is a top view of this utility model;

[0019] Figure 6 is a schematic diagram of the structure of this utility model after the shell cover is removed.

[0020] As shown in the figure: 1. Shell; 2. Impeller; 3. Inlet connector; 4. Outlet connector; 5. Shaft; 6. Positioner 1; 7. Positioner 2; 8. Shell cover; 9. Flow regulating pipe; 10. Electrically controlled valve; 11. Sealed bearing; 12. Support plate; 13. Mounting bracket. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Referring to Figures 1, 2, and 6, a flow regulating mechanical device for a rotary flow meter includes: a flow meter body, comprising a housing 1 and several impellers 2, wherein the upper and lower walls of the housing 1 are respectively provided with inlet connectors 3 and outlet connectors 4, and a mounting bracket 13 is fixedly provided below the housing 1, wherein the mounting bracket 13 is provided with several mounting holes to facilitate fixing the device in different positions and improve the flexibility and stability of the device installation.

[0023] Referring to Figure 6, the impellers 2 are fixedly mounted on the same rotating shaft 5. The impellers 2 are equidistantly distributed around the rotating shaft 5, which can make the force uniform when the fluid impacts the impellers, ensure the smooth rotation of the rotating shaft 5, and thus improve the accuracy of flow measurement.

[0024] Referring to Figures 2 and 4, the rotating shaft 5 is rotatably connected inside the housing 1, with its rear end extending out of the housing 1 and fixedly provided with a locator 6. A sealed bearing 11 is provided at the junction of the rear side wall of the housing 1 and the rotating shaft 5, which can prevent fluid leakage and reduce the frictional resistance when the rotating shaft 5 rotates, thus extending the service life of the device.

[0025] Referring to Figures 2, 4, and 5, a second locator 7 matching the first locator 6 is fixedly provided on the rear side of the housing 1. A support plate 12 is fixedly provided on the upper rear side of the housing 1. The second locator 7 is fixedly provided below the extended end of the support plate 12 and is located directly above the first locator 6 to ensure precise matching between the two. This facilitates the positioning and monitoring of the rotation position of the rotating shaft 5, thereby accurately measuring the impeller speed and determining the flow rate.

[0026] Referring to Figures 1 and 4, a cover 8 is detachably provided on the front side of the housing 1. The cover 8 is threadedly connected to the front side of the housing 1 and has anti-slip texture on its side wall, which not only facilitates disassembly and assembly but also enhances the sealing of the connection and prevents fluid from overflowing from the connection.

[0027] Referring to Figures 1 and 3, the flow regulating pipe 9 is sealed and detachable on the liquid inlet connector 3, and is equipped with an electrically controlled valve 10. The electrically controlled valve 10 can be connected to a remote control device to achieve remote and precise control, which is convenient and practical.

[0028] The specific implementation of this utility model is as follows: The device is fixed in the desired position through the mounting holes on the mounting bracket 13. Fluid flows into the housing 1 from the inlet connector 3, impacting the impeller 2 and driving the rotating shaft 5 to rotate. The impellers 2 are evenly distributed around the rotating shaft 5 to ensure uniform force and smooth rotation of the rotating shaft 5. The rear end of the rotating shaft 5 extends out of the housing 1, and the positioner 6 rotates with it. The positioner 7 on the rear side of the housing 1 matches the positioner 6, which can accurately monitor the rotation position of the rotating shaft 5, thereby obtaining the impeller speed to measure the flow rate. The housing cover 8 is threaded to the front side of the housing 1 for easy disassembly and maintenance. If the flow rate needs to be adjusted, a signal is sent to the electrically controlled valve 10 on the flow regulating pipe 9 through a remote control device to control its opening to adjust the fluid flow rate. The sealed bearing 11 ensures that there is no fluid leakage and low frictional resistance when the rotating shaft 5 rotates, ensuring stable operation of the device.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flow regulating mechanical device for a rotary flow meter, characterized in that, include: The flow meter body includes a housing (1) and several impellers (2). The upper and lower walls of the housing (1) are respectively provided with inlet connectors (3) and outlet connectors (4). The impellers (2) are fixed on the same rotating shaft (5). The rotating shaft (5) is rotatably connected inside the housing (1). Its rear end extends out of the housing (1) and is fixedly provided with a positioner one (6). The rear side of the housing (1) is fixedly provided with a positioner two (7) that matches the positioner one (6). The front side of the housing (1) is detachably provided with a cover (8). The flow regulating pipe (9) is sealed and connected to the inlet connector (3) and is detachable. It is provided with an electric control valve (10).

2. The flow regulating mechanical device for a rotary flow meter according to claim 1, characterized in that: The impellers (2) are equidistantly distributed around the shaft (5).

3. The flow regulating mechanical device for a rotary flow meter according to claim 1, characterized in that: A sealed bearing (11) is provided at the junction of the rear side wall of the housing (1) and the rotating shaft (5).

4. The flow regulating mechanical device for a rotary flow meter according to claim 1, characterized in that: The upper rear side of the housing (1) is fixedly provided with a support plate (12), and the second locator (7) is fixedly provided below the extended end of the support plate (12), and is located directly above the first locator (6).

5. The flow regulating mechanical device for a rotary flow meter according to claim 1, characterized in that: The shell cover (8) is threadedly connected to the front side of the shell (1), and its side wall is provided with anti-slip texture.

6. The flow regulating mechanical device for a rotary flow meter according to claim 1, characterized in that: A mounting bracket (13) is fixedly provided below the housing (1), and the mounting bracket (13) has several mounting holes.

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