High pressure type spring structure horizontal metal tube float flowmeter

Abstract

The utility model is suitable for float flowmeter technical field provides a high pressure type spring structure horizontal type metal pipe float flowmeter, including converter main part, the top fixed connection of converter main part has the connecting support, the top horizontal fixed connection of connecting support has the measuring tube, the inside of measuring tube is provided with the float that can move horizontally, the inside of float is provided with the initiative magnetic steel. This high pressure type spring structure horizontal type metal pipe float flowmeter, through setting connecting support and compression spring, the compression spring in this device is cylindrical spiral compression spring, has good damping effect, can guarantee the stable motion track of the float in this device, will not produce water hammer effect because of medium flow sudden change, thereby avoid the pointer of converter to produce the unstable jitter of, and this device is fixedly connected to the measuring tube through a connecting support, it is more convenient when installing also saves the cost of this device on structure, thereby improved the practicality of this device.

Description

Technical Field

[0001] This utility model belongs to the technical field of float flowmeters, and particularly relates to a high-pressure spring structure horizontal metal tube float flowmeter. Background Technology

[0002] Metal tube float flowmeters are instruments used to measure the flow rate of various media, including pipelines and fluids. They are manufactured and researched based on the variable area measurement principle and are suitable for measuring liquids and gases. Featuring an all-metal structure, they are available in indicating, remote transmission, corrosion-resistant, high-pressure, jacketed, and explosion-proof types. They offer standard analog signal outputs of 0-10mA and 4-20mA and provide on-site indication. Features include accumulation, digital communication, on-site modification of measurement parameters, different power supply options, magnetic filters, and special specifications. They are widely used in petroleum, chemical, power generation, pharmaceutical, food, and water treatment industries, and are suitable for flow measurement in complex and harsh environments and with various media conditions.

[0003] Metal tube float flow meters typically employ a vertical installation structure with the pipeline medium flowing from bottom to top. However, due to limitations in the location of pipelines in actual production and applications, users often require horizontal metal tube float flow meters. Generally, horizontal metal tube float flow meters come in two structural forms: atmospheric pressure and high pressure. However, in actual use, existing metal tube float flow meters experience water hammer effects when the flow rate of the process medium changes abruptly, causing impacts on the internal structure. This leads to instability and vibration of the converter pointer. Furthermore, the structure is relatively complex and inconvenient to install. Utility Model Content

[0004] This utility model provides a high-pressure spring structure horizontal metal tube float flow meter, which aims to solve the problems of existing metal tube float flow meters in actual use. When the flow rate of the process medium changes suddenly, the float inside will generate water hammer effect, causing impact on the internal structure. As a result, the converter pointer will be unstable and shake. In addition, the structure is relatively complicated and inconvenient to install.

[0005] This utility model is implemented as follows: a high-pressure spring structure horizontal metal tube float flow meter includes a converter body, a connecting bracket is fixedly connected to the top of the converter body, and a measuring tube is horizontally fixedly connected to the top of the connecting bracket.

[0006] The measuring tube is equipped with a float that can move laterally inside. The float is equipped with an active magnet inside. A perforated plate adapted to the float is fixedly connected to the middle of the inner cavity of the measuring tube. A first guide ring and a second guide ring are fixedly connected to the two ends inside the measuring tube, respectively. A compression spring is provided between the second guide ring and the float.

[0007] Preferably, a limiting tube is fixedly connected laterally inside the second guide ring.

[0008] Preferably, a first guide rod and a second guide rod are fixedly connected to both ends of the float, and the first guide rod and the second guide rod are slidably connected laterally inside the first guide ring and the limiting tube, respectively.

[0009] Preferably, both ends of the outer surface of the measuring tube are fixedly connected with connecting flanges.

[0010] Preferably, one end of the float extends in a tapered shape, and the inner diameter of the perforated plate is adapted to the maximum outer diameter of the float.

[0011] Preferably, the pointer shaft of the converter body extends to the outside of the measuring tube, and a driven magnet that attracts the active magnet is fixedly connected to the top of the pointer shaft of the converter body.

[0012] Beneficial effects

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a high-pressure spring structure horizontal metal tube float flow meter. By setting a connecting bracket and a compression spring, the compression spring in this device is a cylindrical helical compression spring, which has a good damping effect and can ensure the stability of the float's movement trajectory in the device. It will not produce water hammer effect due to sudden changes in medium flow, thereby avoiding unstable jitter of the converter pointer. In addition, the device uses a connecting bracket to fix the measuring tube, which is more convenient to install and also saves on the structural cost of the device, thereby improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the measuring tube of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the converter pointer shaft, i.e., the driven magnet, of this utility model.

[0017] In the figure: 1-Converter body, 2-Connecting bracket, 3-Measuring tube, 4-First guide ring, 5-First guide rod, 6-Float, 7-Orifice plate, 8-Second guide ring, 9-Limiting tube, 10-Second guide rod, 11-Compression spring, 12-Driven magnet, 13-Connecting flange. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a high-pressure spring structure horizontal metal tube float flow meter, including a converter body 1, a connecting bracket 2 fixedly connected to the top of the converter body 1, and a measuring tube 3 fixedly connected to the top of the connecting bracket 2 laterally.

[0020] The measuring tube 3 has a float 6 that can move laterally inside. The float 6 has an active magnet inside. The middle of the inner cavity of the measuring tube 3 is fixedly connected to a perforated plate 7 that is compatible with the float 6. The two ends inside the measuring tube 3 are respectively fixedly connected to a first guide ring 4 and a second guide ring 8. A compression spring 11 is provided between the second guide ring 8 and the float 6.

[0021] One end of the float 6 extends in a tapered shape, and the inner diameter of the perforated plate 7 is adapted to the maximum outer diameter of the float 6.

[0022] The pointer shaft of the converter body 1 extends to the outside of the measuring tube 3, and the top of the pointer shaft of the converter body 1 is fixedly connected to a driven magnet 12 that attracts the active magnet.

[0023] In this embodiment, when the device is working, the process medium is introduced from one side of the second guide ring 8 of the measuring tube 3 of the device. The pressure generated by the flow of the medium will push the float 6 to move to one side. When its flow rate is balanced with the reaction force of the compression spring 11, the position of the float 6 will remain stable. The active magnet inside the float 6 will drive the driven magnet 12 to move when the float 6 moves, thereby driving the pointer shaft on the converter body 1 to rotate. When the float 6 is in a stable state, the pointer on the converter body 1 will also be fixed at a position. At this time, the position of the pointer is the instantaneous flow rate of the process pipeline.

[0024] When the flow rate in the process pipeline decreases, the float 6 will return to its original position under the reaction force of the compression spring 11. Its working principle and the instantaneous flow rate displayed by the standard meter are the same as the working principle of the positive stroke. It can monitor the flow rate of the left-in and right-out installation structure without complicated pipelines. The pipeline structure is simple and easy to install, reducing the cost of flow monitoring and facilitating the later pipeline inspection and maintenance.

[0025] The compression spring 11 is a cylindrical helical compression spring, which has a good damping effect and can ensure that the movement trajectory of the float 6 in the device is stable and will not produce water hammer effect due to sudden changes in medium flow, thereby avoiding unstable jitter of the converter pointer.

[0026] When measuring the flow rate of a right-inlet, left-outlet process pipeline, the measuring tube 3 and its internal structure are reversed to make them symmetrical with the current state.

[0027] Furthermore, the second guide ring 8 is internally fixedly connected to a limiting tube 9 in a transverse direction.

[0028] The float 6 is fixedly connected to the first guide rod 5 and the second guide rod 10 at both ends, and the first guide rod 5 and the second guide rod 10 are slidably connected laterally inside the first guide ring 4 and the limiting tube 9, respectively.

[0029] In this embodiment, the first guide rod 5 and the second guide rod 10 both guide and limit the float 6. They are slidably connected inside the first guide ring 4 and the limiting tube 9, respectively, so that the float 6 can only move along the length of the measuring tube 3. At the same time, the limiting tube 9 and the second guide rod 10 can also support the compression spring 11 to prevent it from bending during compression deformation.

[0030] Furthermore, both ends of the outer surface of the measuring tube 3 are fixedly connected with connecting flanges 13.

[0031] In this embodiment, the connecting flange 13 facilitates the installation of the device in the test pipeline.

[0032] The working principle and usage process of this utility model are as follows: After the utility model is installed, when the device is working, the process medium is introduced from one side of the second guide ring 8 of the measuring tube 3 of the device. The pressure generated by the flow of the medium will push the float 6 to move to one side. When its flow rate and the reaction force of the compression spring 11 reach equilibrium, the position of the float 6 will remain stable. The active magnet inside will drive the driven magnet 12 to move when the float 6 moves, which will in turn drive the pointer shaft on the converter body 1 to rotate. When the float 6 is in a stable state, the pointer on the converter body 1 will also be fixed at a certain position. At this time, the position of the pointer is the instantaneous flow rate of the process pipeline. The compression spring 11 is a cylindrical helical compression spring, which has a good damping effect, which can ensure that the movement trajectory of the float 6 in the device is stable and will not produce water hammer effect due to sudden changes in the flow rate of the medium, thereby avoiding unstable shaking of the pointer of the converter.

[0033] The above are merely preferred embodiments of the present utility model and are 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.

Images