Online densimeter

Abstract

The utility model discloses an on-line densimeter, and particularly relates to the technical field of densimeters, the on-line densimeter comprises a densimeter main body, a tuning fork and an instrument display panel, the tuning fork is fixed at the bottom of the densimeter main body, and the instrument display panel is fixed at the front end of the densimeter main body and is used for displaying detection data on line; the outer wall of the densimeter main body is fixedly sleeved with a detection tube, the bottom end of the tuning fork extends into the detection tube, a protection assembly is arranged in the detection tube and comprises two annular plates, the two annular plates are arranged on the two sides of the tuning fork respectively, and filter screens are fixedly arranged in the two annular plates. The device can be conveniently connected with a flowing medium pipeline for density detection and can also be directly immersed into a static medium for density measurement, the applicability is high, the use flexibility is high, density data displayed on line by the instrument display panel is convenient to check, in addition, the filter screen can filter impurities and lumps in the medium, and the use is convenient. Impurities and blocks are prevented from colliding with the tuning fork to affect density detection precision.

Description

Technical Field

[0001] This utility model relates to the field of densitometer technology, and more specifically to an online densitometer. Background Technology

[0002] An online densitometer is a device used for continuous online measurement of the concentration and density of liquids, displaying density data on-site. It is suitable for measuring the density of tanks, pipelines, and flowing or stationary media. Existing online densitometers are classified according to their operating principle into two types: differential pressure densitometers and tuning fork densitometers. The differential pressure densitometer, based on Archimedes' principle, states that the static pressure of a liquid column at a certain height is directly proportional to the liquid density. It uses a diaphragm pressure measuring element to measure the static pressure of the liquid column and then converts it into a density value.

[0003] A tuning fork density meter is designed based on the vibration principle of a component. This vibrating element is similar to a two-toothed tuning fork. The fork body vibrates due to a piezoelectric crystal located at the root of the teeth. The frequency of the vibration is detected by another piezoelectric crystal. Through phase shifting and amplification circuits, the fork body is stabilized at its inherent resonant frequency. When a medium flows through the fork body, the change in the mass of the medium causes a change in the resonant frequency. The density of the liquid is measured by analyzing the frequency. For example, a tuning fork density meter with prior art disclosure number CN221100393U uses a flange to adjust the position of the tuning fork, ensuring that the tuning fork is completely immersed in the liquid flowing in the pipe for density detection.

[0004] However, the existing technologies mentioned above still have the following problems when used: When traditional online densitometers are put into use, they are generally directly inserted into flowing or static media. For flowing media, the impurities and lumps contained therein are very likely to collide with the tuning fork component of the densitometer. When the tuning fork is hit, it will cause abnormal vibration, which will interfere with the accuracy of density detection. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides an online density meter that can be conveniently connected to a flowing medium pipeline for density detection, and can also be directly immersed in a static medium for density measurement. It has strong applicability and high flexibility of use, and the instrument display panel displays density data online for easy viewing. In addition, the filter screen can filter impurities and lumps in the medium to prevent impurities and lumps from colliding with the tuning fork and affecting the accuracy of density detection, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online densitometer, comprising a densitometer body, a tuning fork, and an instrument display panel. The tuning fork is fixed to the bottom of the densitometer body, and the instrument display panel is fixed to the front end of the densitometer body for online display of detection data. A detection tube is fixedly sleeved on the outer wall of the densitometer body. The bottom end of the tuning fork extends into the interior of the detection tube. A protective component is provided inside the detection tube. The protective component includes two ring plates, which are respectively disposed on both sides of the tuning fork. A filter screen is fixedly installed inside each of the two ring plates. A collar is fixedly installed on the side of each ring plate near the tuning fork. The collar is fixedly connected to the inner wall of the detection tube. Mounting components are fixedly installed on both sides of the top of the detection tube.

[0007] In a preferred embodiment, positioning blocks are fixedly provided on the side of the two ring plates that are close to each other, and positioning grooves adapted to the positioning blocks are machined on the side of the two collars that are far apart from each other. The positioning blocks are inserted into the positioning grooves, and the workers can quickly install the ring plates and collars together with the help of the positioning blocks, thereby improving the installation efficiency of the ring plates.

[0008] In a preferred embodiment, a fixing hole is machined at the top of the detection tube, the densitometer body passes through the fixing hole, and a sealing ring is provided between the densitometer body and the fixing hole. The sealing ring can improve the sealing between the densitometer body and the fixing hole and prevent leakage.

[0009] In a preferred embodiment, a lever is fixedly provided on the side of each of the two ring plates that are far apart. The lever is located inside the detection tube to avoid the lever being exposed too long and affecting the appearance.

[0010] In a preferred embodiment, the mounting assembly includes two folding rods, which are respectively located on both sides of the densitometer body. The top of each folding rod is machined with multiple evenly distributed mounting holes. In actual use, multiple bolts can be used for fixing, thereby improving the stability of the folding rod installation.

[0011] In a preferred embodiment, flanges are fixedly fitted at both ends of the detection tube. The flanges are located outside the folding rod and the lever. A second sealing ring is provided on the outer wall of the flange. The second sealing ring can improve the sealing performance between the detection tube and the flowing medium pipeline.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model uses a detection tube to encase a tuning fork for detection. It can be easily connected to a flowing medium pipeline to achieve accurate density detection of the flowing medium, and can also be directly immersed in a static medium for density measurement. It has strong applicability and high flexibility of use. Furthermore, the density data is displayed online through the instrument display panel, which is convenient for staff to check at any time. In addition, the filter screen can filter impurities and lumps in the medium to prevent impurities and lumps from colliding with the tuning fork and affecting the accuracy of density detection.

[0014] 2. By installing two folding rods on the detection tube, the stability of the online density meter can be improved when the detection tube is connected to the flowing medium pipeline. When it is necessary to immerse the detection tube in the static medium for detection, the online density meter can be suspended above the medium using the folding rods, and the detection operation can be easily completed. This design makes the use of the online density meter extremely flexible and adaptable to different detection scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the detection tube of this utility model;

[0017] Figure 3 This is a structural diagram of the ring plate and collar of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the present invention when it is connected to a pipeline for flowing media.

[0019] Figure 5 This is a schematic diagram illustrating the use of this utility model in a static medium.

[0020] The attached figures are labeled as follows: 1. Densitometer body; 2. Tuning fork; 3. Instrument display panel; 4. Detection tube; 5. Protection component; 6. Mounting component; 7. Fixing hole; 8. Sealing ring one; 9. Lever; 10. Flange; 11. Sealing ring two;

[0021] 51. Ring plate; 52. Filter screen; 53. Collar ring; 54. Positioning block; 55. Positioning groove;

[0022] 61. Folding rod; 62. Mounting hole. Detailed Implementation

[0023] 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.

[0024] Refer to the instruction manual appendix Figures 1-5 This utility model provides an online density meter, including a density meter body 1, a tuning fork 2, and an instrument display panel 3. The tuning fork 2 is fixed to the bottom of the density meter body 1, and the instrument display panel 3 is fixed to the front end of the density meter body 1 for online display of test data. A test tube 4 is fixedly fitted onto the outer wall of the density meter body 1 by bolts. The bottom end of the tuning fork 2 extends into the interior of the test tube 4. A fixing hole 7 is machined on the top of the test tube 4. The density meter body 1 passes through the fixing hole 7, and a sealing ring 8 is provided between the density meter body 1 and the fixing hole 7. The sealing ring 8 can play a role in sealing and preventing leakage.

[0025] The detection tube 4 is equipped with a protective component 5, which includes two ring plates 51. The two ring plates 51 are respectively located on both sides of the tuning fork 2. A filter screen 52 is fixedly installed inside each of the two ring plates 51. A collar 53 is fixedly installed on the side of each ring plate 51 near the tuning fork 2. The collar 53 is connected to the ring plate 51 by multiple bolts. The collar 53 is fixedly connected to the inner wall of the detection tube 4.

[0026] Flanges 10 are fixedly fitted at both ends of the detection tube 4. A sealing ring 11 is provided on the outer wall of the flange 10 to improve the sealing performance when the detection tube 4 is connected to the flowing medium pipeline.

[0027] In actual use, the operator first connects the flanges 10 at both ends of the detection tube 4 to the flowing medium pipeline. When the medium flows through the detection tube 4, the tuning fork 2 at the bottom of the densitometer body 1 vibrates due to a piezoelectric crystal located at the root of the tooth. The frequency of the vibration is detected by another piezoelectric crystal. Through phase shifting and amplification circuits, the fork body is stabilized at its inherent resonant frequency. When the medium flows through the fork body, the change in the medium mass causes a change in the resonant frequency. The microprocessor inside the densitometer body 1 analyzes the frequency to measure the liquid density and displays the density data on the instrument display panel 3 for easy online viewing by the operator. In addition, a filter screen 52 is set to filter impurities and lumps in the medium to prevent impurities and lumps from colliding with the tuning fork 2 and affecting the detection accuracy of the tuning fork 2. The length and shape of the detection tube 4 can also be adjusted according to the actual situation, and the ring plate 51 can be disassembled according to the composition of the medium to cope with different detection situations, which is highly flexible.

[0028] In this embodiment, positioning blocks 54 are fixedly provided on the side of the two ring plates 51 that are close to each other, and positioning grooves 55 adapted to the positioning blocks 54 are machined on the side of the two collars 53 that are far apart from each other. The positioning blocks 54 are inserted into the positioning grooves 55. By using the insertion of the positioning blocks 54 and the positioning grooves 55, it is convenient for the staff to quickly install the ring plates 51. In addition, a lever 9 is fixedly provided on the side of the two ring plates 51 that is far apart from each other. The lever 9 is located inside the detection tube 4. The lever 9 is provided to facilitate the staff to quickly disassemble the ring plates 51.

[0029] Refer to the instruction manual appendix Figures 1-5 The top two sides of the detection tube 4 are fixed with mounting components 6 by bolts. The mounting components 6 include folding rods 61. Two folding rods 61 are respectively located on both sides of the densitometer body 1. The top of the folding rods 61 is machined with multiple evenly distributed mounting holes 62. The flange 10 is located on the outside of the folding rods 61 and the lever 9.

[0030] By setting two folding rods 61 at the top of the detection tube 4, after the detection tube 4 is connected to the flowing medium pipeline, the operator can use bolts to pass through the mounting holes 62 on the folding rods 61 to connect the folding rods 61 to the surrounding equipment and objects, thereby playing a reinforcing role. Furthermore, when the detection tube 4 is placed directly in the medium in the tank for testing, the folding rods 61 can also be used to suspend the densitometer body 1 above the medium, so that the detection tube 4 and the tuning fork 2 can be immersed in the medium for testing. This makes it suitable for testing the density of static media.

[0031] Finally: 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, 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. An online densitometer, comprising a densitometer body (1), a tuning fork (2), and an instrument display panel (3), wherein the tuning fork (2) is fixed to the bottom of the densitometer body (1), and the instrument display panel (3) is fixed to the front end of the densitometer body (1) for online display of detection data, characterized in that: The densitometer body (1) has a detection tube (4) fixedly sleeved on its outer wall, and the bottom end of the tuning fork (2) extends into the inside of the detection tube (4); The detection tube (4) is equipped with a protective component (5), which includes two ring plates (51). The two ring plates (51) are respectively located on both sides of the tuning fork (2). A filter screen (52) is fixedly installed inside each of the two ring plates (51). A collar (53) is fixedly installed on the side of each ring plate (51) near the tuning fork (2). The collar (53) is fixedly connected to the inner wall of the detection tube (4). An installation component (6) is fixedly installed on both sides of the top of the detection tube (4).

2. An in-line densimeter according to claim 1, characterized in that: Two ring plates (51) are fixedly provided with positioning blocks (54) on the side close to each other, and two collars (53) are machined with positioning grooves (55) that are adapted to the positioning blocks (54) on the side far apart from each other. The positioning blocks (54) are inserted into the positioning grooves (55).

3. An in-line densimeter according to claim 1, characterized in that: The top of the detection tube (4) is machined with a fixing hole (7), the densitometer body (1) passes through the fixing hole (7), and a sealing ring (8) is provided between the densitometer body (1) and the fixing hole (7).

4. An in-line densimeter according to claim 1, characterized in that: Two ring plates (51) are each fixedly provided with a lever (9) on the side away from each other, and the lever (9) is located inside the detection tube (4).

5. An in-line densimeter according to claim 4, characterised in that: The mounting assembly (6) includes folding rods (61), with two folding rods (61) respectively located on both sides of the densitometer body (1), and the top of the folding rods (61) having a plurality of evenly distributed mounting holes (62).

6. An in-line densimeter according to claim 5, characterized in that: The detection tube (4) is fixedly fitted with flanges (10) at both ends. The flanges (10) are located outside the folding rod (61) and the lever (9). The outer wall of the flange (10) is provided with a sealing ring (11).

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