A disturbance-resistant trowel density probe for high viscosity fluids

Abstract

The application discloses an anti-disturbance tuning fork densimeter probe for high-viscosity fluid, which comprises a bearing sleeve, a mounting plate fixed in the bearing sleeve, two groups of butterfly spring sets symmetrically arranged at the bottom end of the mounting plate, a bearing plate fixed at one end of the butterfly spring set, a recess cavity formed in the bearing plate, a piezoelectric ceramic piece mounted in the recess cavity, and a tuning fork probe fixed on the piezoelectric ceramic piece. The anti-disturbance mechanism is composed of a disturbance shielding sleeve, a spiral flow guide piece, a spiral flow channel and a polyurethane buffer layer. During the measurement process, the disturbance shielding sleeve guides the high-viscosity fluid to flow through the tuning fork probe stably through the spiral flow channel, so that the direct impact of the flow velocity fluctuation on the tuning fork probe is avoided, meanwhile, the polyurethane buffer layer can absorb the fluid impact energy, and the double anti-disturbance effect can be realized by the combination of the two, the measurement precision of the device is improved, and the device has high use performance.

Description

Technical Field

[0001] This invention relates to the field of tuning fork density meter technology, and more specifically to an anti-disturbance tuning fork density meter probe for high viscosity fluids. Background Technology

[0002] Tuning fork density meters operate based on the "Coriolis force principle" or the "correlation principle between vibration frequency and medium density". Their core component is the tuning fork probe, which generates natural vibration by exciting the tuning fork and then calculates the medium density based on the change in vibration frequency. Due to its simple structure and fast response speed, it is widely used in fluid density measurement in chemical, food, petroleum and other fields.

[0003] Existing tuning fork density meter probes are easily affected by the viscous resistance of high-viscosity fluids during measurement, resulting in rapid amplitude decay and difficulty in maintaining stable vibration. This not only leads to delayed measurement response but also causes the probes to malfunction due to energy depletion, resulting in measurement errors and affecting measurement accuracy and performance. Furthermore, during the measurement of high-viscosity fluids, the fluid tends to adhere to and accumulate on the surface of the tuning fork, altering the natural vibration frequency and causing continuous measurement errors. The adhered medium is also difficult to clean, further exacerbating measurement deviations. Therefore, there is an urgent need for an anti-disturbance tuning fork density meter probe for high-viscosity fluids to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-disturbance tuning fork density meter probe for high viscosity fluids in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An anti-disturbance tuning fork density meter probe for high-viscosity fluids includes a support sleeve, a mounting plate fixed inside the support sleeve, two sets of butterfly springs symmetrically arranged at the bottom end of the mounting plate, a support plate fixed at one end of each butterfly spring set, a cavity formed in the support plate, a piezoelectric ceramic plate installed in the cavity, a tuning fork probe fixed on the piezoelectric ceramic plate, a temperature sensor at the bottom end of the tuning fork probe, an anti-stick coating sprayed on the outer wall of the tuning fork probe, and a lead-out from one side wall at the top end of the tuning fork probe. The transmission line has an electrode interface pre-reserved on one side wall of the bearing plate, and a connecting wire is provided on the electrode interface. Two sets of brackets are symmetrically fixed on the two side walls of the bearing sleeve. A turbulence shielding sleeve is fixed at the bottom of the bracket. A spiral guide vane is fixed inside the turbulence shielding sleeve. A spiral flow channel is formed between the spiral guide vane and the turbulence shielding sleeve. A polyurethane buffer layer is sprayed on the outer wall of the spiral guide vane. Two sets of through cavities are symmetrically opened at the top of the turbulence shielding sleeve. An elastic collar is fixed inside the through cavity.

[0007] Furthermore, the mounting plate is welded inside the bearing sleeve, and the disc spring assembly is welded to both the mounting plate and the bearing plate.

[0008] By adopting the above technical solution, the butterfly spring assembly, as an elastic connector, can adapt to the small deformation of the fork body, reduce vibration stress concentration, and at the same time improve the vibration recovery ability of the fork body in high viscosity fluids, thus extending its service life.

[0009] Furthermore, the piezoelectric ceramic sheet is fixed in the cavity by screws, the piezoelectric ceramic sheet is electrically connected to the electrode interface, and the connecting wire is connected to the electrode interface by threads.

[0010] By adopting the above technical solution, the piezoelectric ceramic sheet, the electrode interface, and the connecting wire can form a miniature ultrasonic transducer, which can work periodically to peel off the trace amount of medium attached to the surface of the tuning fork probe, thereby achieving self-cleaning, ensuring the inherent frequency and measurement accuracy of the tuning fork probe, and providing strong functionality.

[0011] Furthermore, the tuning fork probe is fixed on the piezoelectric ceramic sheet, the temperature sensor is embedded in the bottom end of the tuning fork probe, the transmission line is electrically connected to both the tuning fork probe and the temperature sensor, and the thickness of the anti-stick coating is 2mm.

[0012] By adopting the above technical solution, the temperature sensor can detect the temperature of high-viscosity fluid, the tuning fork probe generates vibration and transmits the vibration signal to the monitoring host for processing and analysis through the transmission line, and the anti-stick coating can reduce the amount of high-viscosity fluid adhering to the surface of the tuning fork probe.

[0013] Furthermore, one end of the bracket is welded to the bearing sleeve, the other end of the bracket is welded to the turbulence shielding sleeve, and the spiral guide vane is welded inside the turbulence shielding sleeve.

[0014] By adopting the above technical solution, the spiral guide vane can guide the flow of high-viscosity fluids.

[0015] Furthermore, the spiral flow channels are all formed inside the turbulence shielding sleeve, and the thickness of the polyurethane buffer layer is 2mm.

[0016] By adopting the above technical solution, the turbulence shielding sleeve guides the high-viscosity fluid to flow smoothly through the tuning fork probe through the spiral flow channel, avoiding the direct impact of flow velocity fluctuations on the tuning fork probe. At the same time, the polyurethane buffer layer can absorb the fluid impact energy. The combination of the two can achieve a dual anti-disturbance effect, improve the measurement accuracy of the device, and has high performance.

[0017] Furthermore, the through cavity is formed on the turbulence shielding sleeve, the elastic collar is bonded inside the through cavity, and the tuning fork probe passes through the through cavity and is located inside the turbulence shielding sleeve.

[0018] By adopting the above technical solution, the through cavity provides a through space for the tuning fork probe, and the elastic collar can provide an elastic connection between the tuning fork probe and the through cavity.

[0019] Furthermore, a flange is fixed to the top of the bearing sleeve, and mounting holes are distributed circumferentially on the flange.

[0020] By adopting the above technical solution, the mounting holes on the flange facilitate the installation and fixation of the device.

[0021] Furthermore, a sleeve rod is fixed to the top of the flange, and a monitoring host is fixed to the top of the sleeve rod. The transmission line and the connecting line pass through the flange and the sleeve rod and are electrically connected to the monitoring host. The monitoring host has a built-in processing algorithm and a corresponding monitoring system.

[0022] By adopting the above technical solution, the monitoring host can process and analyze the transmitted monitoring data, thereby realizing the measurement of the density of high-viscosity fluids.

[0023] Furthermore, the monitoring host is equipped with a display screen on its top, and operation buttons are provided on one side of the display screen. Two sets of external ports are also reserved on one side wall of the monitoring host.

[0024] By adopting the above technical solution, the display screen can display the result of measuring fluid density, the operation buttons control the operation of the monitoring host, and the external port facilitates the connection of the monitoring host to the backend.

[0025] The specific working principle is as follows: First, the device is installed on the pipeline through the mounting holes on the flange. At this time, the flow-damping sleeve and the tuning fork probe are inside the pipeline containing the high-viscosity fluid. Then, it is connected to the backend via the external port. The monitoring host is then controlled by the operation buttons to measure the density of the high-viscosity fluid. During the measurement process, the flow-damping sleeve guides the high-viscosity fluid smoothly through the tuning fork probe via the spiral flow channel, avoiding direct impact from flow velocity fluctuations on the probe. Simultaneously, the polyurethane buffer layer absorbs fluid impact energy. The combination of these two elements achieves a dual anti-disturbance effect, improving the measurement accuracy of the device and providing high performance. The temperature sensor can detect the temperature of the high-viscosity fluid. The testing process involves the tuning fork probe generating vibrations and transmitting the vibration signal to the monitoring host via the transmission line for processing and analysis. The results are then displayed on the screen. The anti-stick coating reduces the amount of high-viscosity fluid adhering to the surface of the tuning fork probe. Simultaneously, the butterfly spring assembly, acting as an elastic connector, can adapt to minor deformations of the fork body, reducing vibration stress concentration and enhancing the vibration recovery capability of the fork body in high-viscosity fluids, thus extending its service life. Furthermore, the piezoelectric ceramic sheet, the electrode interface, and the connecting line can form a miniature ultrasonic transducer, which can periodically work to peel off trace amounts of medium adhering to the surface of the tuning fork probe, achieving self-cleaning and ensuring the natural frequency and measurement accuracy of the tuning fork probe, resulting in strong functionality.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. By setting up an anti-turbulence mechanism consisting of a turbulence shielding sleeve, a spiral guide vane, a spiral flow channel, and a polyurethane buffer layer, during the measurement process, the turbulence shielding sleeve guides the high-viscosity fluid to flow smoothly through the tuning fork probe through the spiral flow channel, avoiding the direct impact of flow velocity fluctuations on the tuning fork probe. At the same time, the polyurethane buffer layer can absorb the fluid impact energy. The combination of the two can achieve a dual anti-turbulence effect, improve the measurement accuracy of the device, and has high performance.

[0028] 2. By setting up a set of miniature ultrasonic transducers consisting of piezoelectric ceramic sheets, electrode interfaces and connecting wires, the transducers can work periodically during use to peel off trace amounts of medium adhering to the surface of the tuning fork probe, achieving self-cleaning, ensuring the natural frequency and measurement accuracy of the tuning fork probe, and providing strong functionality. Attached Figure Description

[0029] Figure 1 This is a front view of an anti-disturbance tuning fork density meter probe for high-viscosity fluids as described in this invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the disturbance shielding sleeve in an anti-disturbance tuning fork density meter probe for high viscosity fluids according to the present invention;

[0031] Figure 3 This is a front sectional view of the bearing sleeve in an anti-disturbance tuning fork density meter probe for high viscosity fluids according to the present invention;

[0032] Figure 4 This invention relates to an anti-disturbance tuning fork density meter probe for high-viscosity fluids. Figure 3 Enlarged view of point A in the middle.

[0033] The annotations in the attached figures are explained as follows:

[0034] 1. Monitoring host; 2. Display screen; 3. Operation buttons; 4. External port; 5. Sleeve; 6. Flange; 7. Mounting hole; 8. Bearing sleeve; 9. Tuning fork probe; 10. Bracket; 11. Turbulence shielding sleeve; 12. Spiral guide vane; 13. Spiral flow channel; 14. Polyurethane buffer layer; 15. Through cavity; 16. Elastic collar; 17. Mounting plate; 18. Butterfly spring assembly; 19. Bearing plate; 20. Piezoelectric ceramic sheet; 21. Electrode interface; 22. Anti-stick coating; 23. Temperature sensor; 24. Transmission line; 25. Connecting line. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings:

[0036] like Figures 1-4As shown, an anti-disturbance tuning fork density meter probe for high-viscosity fluids includes a support sleeve 8, a mounting plate 17 fixed inside the support sleeve 8, and two sets of butterfly springs 18 symmetrically arranged at the bottom end of the mounting plate 17. These serve as elastic connectors, adapting to minor deformations of the fork body, reducing vibration stress concentration, and improving the vibration recovery capability of the fork body in high-viscosity fluids, thus extending its service life. A support plate 19 is fixed to one end of each butterfly spring 18. A cavity is formed inside the support plate 19, and a piezoelectric ceramic plate 20 is installed inside the cavity, forming a miniature ultrasonic transducer. This transducer periodically works to peel off trace amounts of medium adhering to the surface of the tuning fork probe 9, achieving self-cleaning and ensuring the natural frequency and measurement accuracy of the tuning fork probe 9. The tuning fork probe 9 is fixed on the piezoelectric ceramic plate 20, enabling the measurement of the density of high-viscosity fluids. A temperature sensor 23 is provided at the bottom end of the tuning fork probe 9, which can detect the high-viscosity fluid... Temperature is measured. The outer wall of the tuning fork probe 9 is coated with an anti-stick coating 22 to reduce the amount of high-viscosity fluid adhering. A transmission line 24 is led out from one side wall of the top of the tuning fork probe 9. An electrode interface 21 is reserved on one side wall of the support plate 19. A connecting line 25 is provided on the electrode interface 21. Two sets of brackets 10 are symmetrically fixed on the two side walls of the support sleeve 8. A turbulence shielding sleeve 11 is fixed at the bottom of the bracket 10. A spiral guide vane 12 is fixed inside the turbulence shielding sleeve 11. A spiral flow channel 13 is formed between the spiral guide vane 12 and the turbulence shielding sleeve 11. A polyurethane buffer layer 14 is sprayed on the outer wall of the spiral guide vane 12 to form an anti-turbulence mechanism and ensure its measurement accuracy. Two sets of through cavities 15 are symmetrically opened at the top of the turbulence shielding sleeve 11 to provide a through space for the tuning fork probe 9. An elastic collar 16 is fixed inside the through cavity 15 to flexibly connect the tuning fork probe 9 and the through cavity 15.

[0037] In this embodiment, the mounting plate 17 is welded inside the bearing sleeve 8, and the butterfly spring assembly 18 is welded to both the mounting plate 17 and the bearing plate 19. As an elastic connector, the butterfly spring assembly 18 can adapt to the small deformation of the fork body, reduce vibration stress concentration, and at the same time improve the vibration recovery ability of the fork body in high viscosity fluids, thus extending its service life.

[0038] In this embodiment, the piezoelectric ceramic sheet 20 is fixed in the cavity by screws. The piezoelectric ceramic sheet 20 is electrically connected to the electrode interface 21. The connecting wire 25 is connected to the electrode interface 21 by threads. The piezoelectric ceramic sheet 20, the electrode interface 21 and the connecting wire 25 can form a miniature ultrasonic transducer, which can work periodically to peel off the trace amount of medium attached to the surface of the tuning fork probe 9, realize its self-cleaning, and ensure the natural frequency and measurement accuracy of the tuning fork probe 9. It has strong functionality.

[0039] In this embodiment, the tuning fork probe 9 is fixed on the piezoelectric ceramic plate 20, the temperature sensor 23 is embedded in the bottom of the tuning fork probe 9, the transmission line 24 is electrically connected to both the tuning fork probe 9 and the temperature sensor 23, the thickness of the anti-stick coating 22 is 2mm, the temperature sensor 23 can detect the temperature of the high viscosity fluid, the tuning fork probe 9 vibrates and transmits the vibration signal to the monitoring host 1 through the transmission line 24 for processing and analysis, and the anti-stick coating 22 can reduce the amount of high viscosity fluid adhering to the surface of the tuning fork probe 9.

[0040] In this embodiment, one end of the support 10 is welded to the bearing sleeve 8, and the other end of the support 10 is welded to the turbulence shielding sleeve 11. The spiral guide vane 12 is welded inside the turbulence shielding sleeve 11, and the spiral guide vane 12 can guide the flow of high viscosity fluid.

[0041] In this embodiment, the spiral flow channels 13 are all formed inside the turbulence shielding sleeve 11, and the thickness of the polyurethane buffer layer 14 is 2mm. The turbulence shielding sleeve 11 guides the high viscosity fluid to flow smoothly through the tuning fork probe 9 through the spiral flow channels 13, avoiding the direct impact of flow velocity fluctuations on the tuning fork probe 9. At the same time, the polyurethane buffer layer 14 can absorb the fluid impact energy. The combination of the two can achieve a dual anti-disturbance effect, improve the measurement accuracy of the device, and have high performance.

[0042] In this embodiment, the through cavity 15 is formed on the turbulence shielding sleeve 11, the elastic collar 16 is bonded inside the through cavity 15, the tuning fork probe 9 passes through the through cavity 15 and is located inside the turbulence shielding sleeve 11, the through cavity 15 provides a through space for the tuning fork probe 9, and the elastic collar 16 can provide an elastic connection between the tuning fork probe 9 and the through cavity 15.

[0043] In this embodiment, a flange 6 is fixed to the top of the bearing sleeve 8. Mounting holes 7 are distributed in a circular pattern on the flange 6. The mounting holes 7 on the flange 6 facilitate the installation and fixation of the device.

[0044] In this embodiment, a sleeve rod 5 is fixed to the top of the flange 6, and a monitoring host 1 is fixed to the top of the sleeve rod 5. The transmission line 24 and the connecting line 25 pass through the flange 6 and the sleeve rod 5 and are electrically connected to the monitoring host 1. The monitoring host 1 has a built-in processing algorithm and a corresponding monitoring system. The monitoring host 1 can process and analyze the transmitted monitoring data, thereby realizing the measurement of the density of high viscosity fluid.

[0045] In this embodiment, a display screen 2 is provided on the top of the monitoring host 1, and an operation button 3 is provided on one side of the display screen 2. Two sets of external ports 4 are also reserved on one side wall of the monitoring host 1. The display screen 2 can display the result of measuring fluid density, the operation button 3 controls the operation of the monitoring host 1, and the external port 4 facilitates the connection of the monitoring host 1 to the background.

[0046] The specific working principle is as follows: First, the device is installed on the pipeline through the mounting holes 7 on the flange 6. At this time, the turbulence shielding sleeve 11 and the tuning fork probe 9 are inside the pipeline containing the high-viscosity fluid. Then, it is connected to the backend via the external port 4. Next, the monitoring host 1 is controlled by the operation button 3 to measure the density of the high-viscosity fluid. During the measurement process, the turbulence shielding sleeve 11 guides the high-viscosity fluid to flow smoothly past the tuning fork probe 9 through the spiral flow channel 13, avoiding direct impact from flow velocity fluctuations on the tuning fork probe 9. Simultaneously, the polyurethane buffer layer 14 absorbs fluid impact energy. The combination of these two elements achieves a dual anti-disturbance effect, improving the measurement accuracy of the device and providing high performance. The temperature sensor 23 can monitor the temperature of the high-viscosity fluid. The tuning fork probe 9 generates vibration and transmits the vibration signal to the monitoring host 1 via the transmission line 24 for processing and analysis. The processing results are displayed on the display screen 2. The anti-stick coating 22 can reduce the amount of high-viscosity fluid adhering to the surface of the tuning fork probe 9. At the same time, the butterfly spring assembly 18, as an elastic connector, can adapt to the small deformation of the fork body, reduce vibration stress concentration, and improve the vibration recovery ability of the fork body in high-viscosity fluid, thus extending its service life. Furthermore, the piezoelectric ceramic sheet 20, electrode interface 21, and connecting line 25 can form a miniature ultrasonic transducer, which can periodically work to peel off the trace amount of medium adhering to the surface of the tuning fork probe 9, achieving self-cleaning and ensuring the natural frequency and measurement accuracy of the tuning fork probe 9. It is highly functional.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A disturbance-resistant tuning fork density meter probe for high-viscosity fluids, characterized in that: Includes a support sleeve (8), inside which a mounting plate (17) is fixed. Two sets of butterfly spring groups (18) are symmetrically arranged at the bottom end of the mounting plate (17). A support plate (19) is fixed at one end of each butterfly spring group (18). A cavity is opened in the support plate (19), and a piezoelectric ceramic plate (20) is installed in the cavity. A tuning fork probe (9) is fixed on the piezoelectric ceramic plate (20). A temperature sensor (23) is arranged at the bottom end of the tuning fork probe (9). An anti-stick coating (22) is sprayed on the outer wall of the tuning fork probe (9). A transmission line (24) is led out from one side wall of the top end of the tuning fork probe (9). On one side wall of the support plate (19) An electrode interface (21) is reserved, and a connecting line (25) is provided on the electrode interface (21). Two sets of brackets (10) are symmetrically fixed on the two side walls of the bearing sleeve (8). A turbulence shielding sleeve (11) is fixed at the bottom of the bracket (10). A spiral guide plate (12) is fixed inside the turbulence shielding sleeve (11). A spiral flow channel (13) is formed between the spiral guide plate (12) and the turbulence shielding sleeve (11). A polyurethane buffer layer (14) is sprayed on the outer side wall of the spiral guide plate (12). Two sets of through cavities (15) are symmetrically opened at the top of the turbulence shielding sleeve (11). An elastic collar (16) is fixed inside the through cavity (15).

2. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The mounting plate (17) is welded inside the bearing sleeve (8), and the butterfly spring assembly (18) is welded to both the mounting plate (17) and the bearing plate (19).

3. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The piezoelectric ceramic sheet (20) is fixed in the cavity by screws. The piezoelectric ceramic sheet (20) is electrically connected to the electrode interface (21). The connecting wire (25) is connected to the electrode interface (21) by threads.

4. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The tuning fork probe (9) is fixed on the piezoelectric ceramic sheet (20), the temperature sensor (23) is embedded in the bottom of the tuning fork probe (9), the transmission line (24) is electrically connected to the tuning fork probe (9) and the temperature sensor (23), and the thickness of the anti-stick coating (22) is 2mm.

5. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: One end of the bracket (10) is welded to the bearing sleeve (8), and the other end of the bracket (10) is welded to the turbulence shielding sleeve (11). The spiral guide vane (12) is welded inside the turbulence shielding sleeve (11).

6. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The spiral flow channels (13) are all formed inside the turbulence shielding sleeve (11), and the thickness of the polyurethane buffer layer (14) is 2mm.

7. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The cavity (15) is formed on the turbulence shielding sleeve (11), the elastic collar (16) is bonded to the cavity (15), and the tuning fork probe (9) passes through the cavity (15) and is located inside the turbulence shielding sleeve (11).

8. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 1, characterized in that: The top of the bearing sleeve (8) is fixed with a flange (6), and the flange (6) has mounting holes (7) distributed in a circular pattern.

9. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 8, characterized in that: The flange (6) is fixed with a sleeve rod (5) at the top, and the sleeve rod (5) is fixed with a monitoring host (1). The transmission line (24) and the connecting line (25) pass through the flange (6) and the sleeve rod (5) and are electrically connected to the monitoring host (1). The monitoring host (1) has a built-in processing algorithm and a corresponding monitoring system.

10. The disturbance-resistant tuning fork density meter probe for high-viscosity fluids according to claim 9, characterized in that: The monitoring host (1) is equipped with a display screen (2) on its top, and operation buttons (3) are provided on one side of the display screen (2). Two sets of external ports (4) are also reserved on one side wall of the monitoring host (1).

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