Flow meter with anti-blocking structure
By introducing a turbine fan and filter components into the flow meter, the problems of easy clogging and damage from impurities in traditional flow meters are solved, achieving automatic cleaning and efficient filtration, thereby improving measurement accuracy and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUAIAN NINGNENG TECHNOLOGY CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional flow meters do not have anti-clogging functions, which can easily lead to inaccurate measurements after prolonged use, and impurities can damage the internal components of the device when flowing at high speeds.
A flow meter with an anti-clogging structure was designed, which includes a turbine fan, a scraper, and a filter assembly. The turbine fan drives the scraper to rotate and clean the inner wall through fluid impact. The filter assembly separates impurities before the fluid enters. The cleaning pipe is used to quickly clean internal impurities.
It enables automatic cleaning of impurities on the inner wall during use, improving measurement accuracy and equipment lifespan, and reducing maintenance costs.
Smart Images

Figure CN224398741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flow meter technology, and in particular to a flow meter with an anti-clogging structure. Background Technology
[0002] Flow meters are primarily used to measure the flow parameters of fluids, including volumetric flow rate and mass flow rate. They can monitor fluid flow in real time, providing accurate flow data for production, scientific research, environmental protection, and other scenarios. This helps control the fluid transport process, optimize resource utilization, and ensure the safe operation of equipment. Some flow meters with anti-clogging structures can also reduce the interference of impurities on the measurement and improve stability.
[0003] Flow meters are classified into velocity, volume, mass, and differential pressure types. Taking the commonly used differential pressure type as an example, its structure includes a throttling device, a pressure tapping device, and a differential pressure transmitter. It uses Bernoulli's equation to measure the pressure difference of the fluid passing through the throttling device to calculate the flow rate. The turbine type relies on the fluid to drive the turbine to rotate, and the number of rotations corresponds to the flow rate. Each type is adapted to different fluid scenarios according to its principle.
[0004] However, traditional flow meters usually do not have anti-clogging functions. After prolonged use, they are prone to inaccurate measurements and may even cause equipment failure. Furthermore, when traditional flow meters measure fluids containing impurities, the impurities can cause damage to the internal components of the device under the impact of high-speed flow.
[0005] Therefore, a flow meter with an anti-clogging structure is provided to solve the problems mentioned in the background art. Utility Model Content
[0006] To overcome the above shortcomings, this utility model provides a flow meter with an anti-clogging structure, aiming to improve the problems of existing technologies lacking an anti-clogging structure and impurities damaging the internal components of the device.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a flow meter with an anti-clogging structure, comprising a measuring tube, flanges fixedly connected to both ends of the measuring tube, a filter assembly fixedly connected to the outside of the measuring tube, a mounting base fixedly connected to the top of the measuring tube, a flow meter disposed on the top of the mounting base, a fixed shaft disposed inside the measuring tube, bearings fixedly connected to both ends of the fixed shaft, a turbine fan fixedly connected to the outside of the bearings, a scraper fixedly connected to the inside of the turbine fan, a ring fixedly connected to the outside of the fixed shaft, a fixed rod fixedly connected to the outside of the ring, and a flow shroud fixedly connected to both ends of the fixed shaft.
[0008] Furthermore, the filter assembly includes a filter tube, a filter plate is disposed inside the filter tube, a locking block is fixedly connected to the outside of the filter plate, a locking groove is opened inside the filter tube, a cleaning pipe is fixedly connected to the bottom of the filter tube, and a sealing plate is disposed at the bottom of the cleaning pipe.
[0009] Furthermore, the filter tube is fixedly connected to the outside of the measuring tube via a flange.
[0010] Furthermore, the slot is in fixed communication with the fixed part, and the card block is slidably connected inside the slot.
[0011] Furthermore, the turbine fan is rotatably connected inside the measuring tube, and the scraper is rotatably connected outside the fixed shaft.
[0012] Furthermore, the inner ring of the bearing is fixedly connected to the outside of the fixed shaft, and its outer ring is fixedly connected to the inside of the turbofan.
[0013] Furthermore, the end of the fixing rod away from the ring is fixedly connected to the inside of the measuring tube.
[0014] Furthermore, the scraper is fixedly connected to the inner side of the turbine fan at both ends of the fixed shaft.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, through the cooperation of the turbine fan, bearing, scraper and fixed shaft, the turbine fan is rotated by the fluid impact during use, which drives the scraper to rotate and clean the inner wall of the measuring tube. This allows the inner wall to be cleaned during use without stopping the machine, which improves work efficiency and extends the service life of the equipment.
[0017] 2. In this utility model, the fluid is filtered before entering the measuring tube by the design of the filter component, and the impurities inside are separated from the fluid. This avoids damage to the internal structure of the device caused by the high-speed impact of impurities. In addition, the design of the cleaning pipe allows the device to be cleaned quickly when it is not in use, which reduces the maintenance cost of the device. Attached Figure Description
[0018] Figure 1 This is a perspective view of a flow meter with an anti-clogging structure proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the measuring structure of a flow meter with an anti-clogging structure proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the cleaning structure of a flow meter with an anti-clogging structure proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the rotating structure of a flow meter with an anti-clogging structure proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the filter structure of a flow meter with an anti-clogging structure proposed in this utility model;
[0023] Figure 6 This is a cross-sectional view of the filter structure of a flow meter with an anti-clogging structure proposed in this utility model.
[0024] Legend:
[0025] 1. Measuring tube; 2. Flange; 3. Filter assembly; 31. Filter tube; 32. Filter plate; 33. Clamping block; 34. Clamping groove; 35. Locking groove; 36. Cleaning pipe; 37. Sealing plate; 4. Mounting base; 5. Flow meter; 6. Fixed shaft; 7. Bearing; 8. Turbine fan; 9. Scraper; 10. Ring sleeve; 11. Fixed rod; 12. Fairing. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figures 1-4 This utility model provides an embodiment of a flow meter with an anti-clogging structure, comprising a measuring tube 1, flanges 2 fixedly connected to both ends of the measuring tube 1, a filter assembly 3 fixedly connected to the outside of the measuring tube 1, a mounting base 4 fixedly connected to the top of the measuring tube 1, a flow meter 5 mounted on the top of the mounting base 4, a fixed shaft 6 disposed inside the measuring tube 1, bearings 7 fixedly connected to both ends of the fixed shaft 6, the inner ring of the bearing 7 fixedly connected to the outside of the fixed shaft 6, and its outer ring fixedly connected to the inside of a turbine fan 8, a turbine fan 8 fixedly connected to the outside of the bearing 7, the turbine fan 8 rotatably connected to the inside of the measuring tube 1, a scraper 9 fixedly connected to the inner side of the turbine fan 8, the scraper 9 rotatably connected to the outside of the fixed shaft 6, the scraper 9 fixedly connected to the inner side of the turbine fan 8 at both ends of the fixed shaft 6, a ring sleeve 10 fixedly connected to the outside of the fixed shaft 6, a fixed rod 11 fixedly connected to the outside of the ring sleeve 10, the end of the fixed rod 11 away from the ring sleeve 10 fixedly connected to the inside of the measuring tube 1, and a rectifier shroud 12 fixedly connected to both ends of the fixed shaft 6.
[0028] Specifically, the device is first connected to the pipe to be measured. When the fluid passes through the measuring tube 1, it drives the turbine fan 8 to rotate around the fixed shaft 6. The rotation speed of the turbine fan 8 is related to the flow rate of the fluid. The inner ring of the bearing 7 is fixed on the fixed shaft 6, and the outer ring is fixed inside the turbine fan 8 to ensure that the turbine fan 8 can rotate flexibly. The flow meter 5 is installed on the top of the measuring tube 1 through the mounting base 4. The flow rate of the fluid can be calculated according to the rotation of the turbine fan 8. The rectifier shrouds 12 at both ends of the fixed shaft 6 can rectify the fluid, so that the fluid passes through the measuring tube 1 more stably and improves the measurement accuracy. When the fluid passes through the turbine fan 8, the scraper 9 on the inner side of the turbine fan 8 rotates with the turbine fan 8. When the scraper 9 rotates, it can scrape off the impurities attached to the inner wall of the measuring tube 1 to prevent the accumulation of impurities from affecting the measurement. One end of the fixed rod 11 is connected to the ring sleeve 10, and the other end is fixed inside the measuring tube 1 to stabilize the fixed shaft 6 and ensure the effect of the scraper 9 in scraping off impurities. This realizes automatic cleaning and anti-clogging during device operation.
[0029] Reference Figure 5 and Figure 6 The filter assembly 3 includes a filter tube 31, which is fixedly connected to the outside of the measuring tube 1 via a flange 2. A filter plate 32 is provided inside the filter tube 31, and a locking block 33 is fixedly connected to the outside of the filter plate 32. A slot 34 and a locking groove 35 are provided inside the filter tube 31, and the slot 34 and the locking groove 35 are fixedly connected. The locking block 33 is slidably connected inside the slot 34 and the locking groove 35. A cleaning pipe 36 is fixedly connected to the bottom of the filter tube 31, and a sealing plate 37 is provided at the bottom of the cleaning pipe 36.
[0030] Specifically, when the device is in use, the filter assembly 3 outside the measuring tube 1 plays a preliminary role in filtering impurities. The filter tube 31 is fixedly connected to the measuring tube 1 via the flange 2. The fluid first passes through the filter tube 31, and the filter plate 32 is fixed inside the filter tube 31 by the cooperation of the locking block 33 with the locking groove 34 and locking groove 35 inside the filter tube 31, which can block impurities in the fluid. When it is necessary to clean the filter plate 32, the filter plate 32 can be removed along the locking groove 34 and locking groove 35. The cleaning pipe 36 at the bottom of the filter tube 31 can be opened periodically to discharge the filtered impurities. The sealing plate 37 at the bottom of the cleaning pipe 36 can prevent fluid leakage when not being cleaned, thus realizing filtration before fluid measurement.
[0031] Working principle: When using this device, first connect the device to the pipe to be measured. When the fluid passes through the measuring tube 1, it drives the turbine fan 8 to rotate around the fixed shaft 6. The rotation speed of the turbine fan 8 is related to the flow rate of the fluid. The inner ring of the bearing 7 is fixed on the fixed shaft 6, and the outer ring is fixed inside the turbine fan 8 to ensure that the turbine fan 8 can rotate flexibly. The flow meter 5 is installed on the top of the measuring tube 1 through the mounting base 4. The flow rate of the fluid can be calculated according to the rotation of the turbine fan 8. The rectifier shrouds 12 at both ends of the fixed shaft 6 can rectify the fluid, so that the fluid passes through the measuring tube 1 more stably and improves the measurement accuracy.
[0032] When the fluid passes through the vortex fan 8, the scraper 9 inside the vortex fan 8 rotates together with the vortex fan 8. When the scraper 9 rotates, it can scrape off the impurities attached to the inner wall of the measuring tube 1, preventing the accumulation of impurities from affecting the measurement. One end of the fixing rod 11 is connected to the ring sleeve 10, and the other end is fixed inside the measuring tube 1, which can stabilize the fixing shaft 6 and ensure the effect of the scraper 9 in scraping off impurities.
[0033] When the device is in use, the filter assembly 3 outside the measuring tube 1 plays a preliminary role in filtering impurities. The filter tube 31 is fixedly connected to the measuring tube 1 through the flange 2. The fluid first passes through the filter tube 31, and the filter plate 32 is fixed inside the filter tube 31 by the cooperation of the locking block 33 with the locking groove 34 and locking groove 35 inside the filter tube 31, which can block impurities in the fluid. When it is necessary to clean the filter plate 32, the filter plate 32 can be removed along the locking groove 34 and locking groove 35. The cleaning pipe 36 at the bottom of the filter tube 31 can be opened periodically to discharge the filtered impurities. The sealing plate 37 at the bottom of the cleaning pipe 36 can prevent fluid leakage when not being cleaned.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 flow meter with an anti-clogging structure, comprising a measuring tube (1), characterized in that: The measuring tube (1) is fixedly connected to flanges (2) at both ends. The measuring tube (1) is fixedly connected to a filter assembly (3). The measuring tube (1) is fixedly connected to a mounting base (4) at the top. A flow meter (5) is installed on the top of the mounting base (4). A fixed shaft (6) is installed inside the measuring tube (1). Bearings (7) are fixedly connected to both ends of the fixed shaft (6). A turbo fan (8) is fixedly connected to the outside of the bearing (7). A scraper (9) is fixedly connected to the inside of the turbo fan (8). A ring sleeve (10) is fixedly connected to the outside of the fixed shaft (6). A fixed rod (11) is fixedly connected to the outside of the ring sleeve (10). A fairing (12) is fixedly connected to both ends of the fixed shaft (6).
2. The flow meter with anti-clogging structure according to claim 1, characterized in that: The filter assembly (3) includes a filter tube (31), a filter plate (32) is provided inside the filter tube (31), a locking block (33) is fixedly connected to the outside of the filter plate (32), a locking groove (34) is provided inside the filter tube (31), a locking groove (35) is provided inside the filter tube (31), a cleaning pipe (36) is fixedly connected to the bottom of the filter tube (31), and a sealing plate (37) is provided at the bottom of the cleaning pipe (36).
3. A flow meter with an anti-clogging structure according to claim 2, characterized in that: The filter tube (31) is fixedly connected to the outside of the measuring tube (1) via a flange (2).
4. A flow meter with an anti-clogging structure according to claim 2, characterized in that: The card slot (34) is fixedly connected to the locking slot (35), and the card block (33) is slidably connected inside the card slot (34) and the locking slot (35).
5. A flow meter with an anti-clogging structure according to claim 1, characterized in that: The turbine fan (8) is rotatably connected inside the measuring tube (1), and the scraper (9) is rotatably connected outside the fixed shaft (6).
6. A flow meter with an anti-clogging structure according to claim 1, characterized in that: The inner ring of the bearing (7) is fixedly connected to the outside of the fixed shaft (6), and its outer ring is fixedly connected to the inside of the turbofan (8).
7. A flow meter with an anti-clogging structure according to claim 1, characterized in that: The end of the fixing rod (11) away from the ring (10) is fixedly connected to the inside of the measuring tube (1).
8. A flow meter with an anti-clogging structure according to claim 1, characterized in that: The scraper (9) is fixedly connected to the inner side of the turbine fan (8) at both ends of the fixed shaft (6).