Circular gear flowmeter with viscosity compensation

Abstract

The utility model relates to the technical field of gear flow meters, and discloses a circular gear flow meter with viscosity compensation, which comprises a gear box, rotating shafts are rotatably connected to the top and the bottom of the inner side of the gear box, meshing gears are rotatably connected to the middles of the outer sides of the rotating shafts, and a counting analyzer is fixedly connected to the front end of the gear box. A conveying pipe is fixedly connected to the middle of the left end of the gearbox, a Y-shaped filter is fixedly connected to the left end of the conveying pipe, a filtering support is slidably connected to the middle of the inner side of the Y-shaped filter, and filtering cotton is fixedly connected to the outer side of the filtering support. Impurities in liquid are efficiently filtered through the blocking net and the high-quality filter cotton which are arranged in the Y-shaped filter, and viscous liquid in a pipeline is heated by means of the steam heater; in the heating process, bubbles in the liquid float upwards to the top of the bent pipe due to heating, and gas is discharged through the gas-liquid separator.

Description

Technical Field

[0001] The utility model relates to the technical field of gear flowmeters, in particular to a circular gear flowmeter with viscosity compensation. Background Art

[0002] With the continuous development of industry, the demand for precise measurement of fluid flow is increasing. In industries such as petroleum, chemical, pharmaceutical, and food, accurately understanding fluid flow is crucial for production process control, quality assurance, and cost accounting. Gear flowmeters, with their high precision, high reliability, and adaptability to different fluids, have become an important measurement tool to meet the needs of these industries. Positive displacement flowmeters measure flow based on the principle of filling and discharging fluid within a fixed volume. Gear flowmeters utilize a pair of intermeshing gears that rotate under the propulsion of the fluid, and the fluid flow rate is determined by measuring the number of gear revolutions. This measurement principle is not affected by changes in the physical properties of the fluid (such as density and viscosity), and has high measurement accuracy and stability.

[0003] The gear flowmeter is mainly composed of the following structural parts: Shell: Usually made of high-strength metal materials or corrosion-resistant engineering plastics, providing solid external protection and support for the flowmeter. Gear: A pair of meshing gears is the core component of the gear flowmeter. Gears are generally made of high-quality alloy steel or stainless steel and have high precision, high hardness and good wear resistance. Bearing: Supports the gear shaft so that it can rotate smoothly. Sealing device: Used to prevent fluid leakage. Sealing devices usually use mechanical seals, packing seals or O-ring seals. Transmission mechanism: Transmits the rotational motion of the gear to the measuring device, generally composed of gear shafts, couplings and other components. Measuring device: Usually includes components such as sensors and counters. The sensor is used to detect the number of revolutions of the gear and converts the signal into an electrical signal or pulse signal output. The counter counts and processes the signal output by the sensor to display the flow value of the fluid.

[0004] Existing gear flowmeters present several challenges when measuring flow rates in relatively viscous liquids. Impurities in the liquid can easily cause meshing gears to jam, resulting in inaccurate flow measurement. Furthermore, bubbles trapped in the liquid can easily cause cavitation during transmission, resulting in gear damage and ultimately affecting the accuracy of flow data. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a circular gear flowmeter with viscosity compensation, which aims to improve the problems in the prior art that impurities in the liquid of the gear flowmeter affect the smoothness of gear rotation and the gear is prone to cavitation.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A circular gear flowmeter with viscosity compensation, comprising a gear box, wherein the top and bottom of the inner side of the gear box are both rotatably connected to a rotating shaft, and the middle part of the outer side of the rotating shaft is rotatably connected to a meshing gear;

[0008] The front end of the gear box is fixedly connected to a counting analyzer, the middle of the left end of the gear box is fixedly connected to a delivery pipe, the left end of the delivery pipe is fixedly connected to a Y-type filter, the middle of the inner side of the Y-type filter is slidably connected to a filter bracket, the outer side of the filter bracket is fixedly connected to filter cotton, and the left end of the Y-type filter is fixedly connected to a heating box;

[0009] A delivery elbow is fixedly connected to the middle of the inner side of the heating box, an exhaust pipe is fixedly connected to the middle side of the top end of the outer side of the delivery elbow, and a gas-liquid separator is fixedly connected to the middle and lower part of the inner side of the exhaust pipe.

[0010] The top of the gear box is fixedly connected with a box cover.

[0011] A connecting spiral tube is fixedly connected to the middle of the right end of the gear box, and a connecting spiral tube is fixedly connected to the left end of the conveying elbow.

[0012] A data display is fixedly connected to the top of the front end of the counting analyzer, and adjustment buttons are fixedly connected to the middle of the front end of the counting analyzer at equal intervals from left to right.

[0013] A counting lever is fixedly connected to the middle and rear portion of the inner side of the counting analyzer.

[0014] The bottom end of the Y-type filter is threadedly connected to a replacement cover, and the middle part of the bottom end of the replacement cover is threadedly connected to a discharge cover.

[0015] A counting toothed disc is fixedly connected to the front outer side of the rotating shaft at the bottom.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model uses the barrier net and high-quality filter cotton set in the Y-type filter to efficiently filter impurities in the liquid, thereby significantly improving the purity of the liquid and greatly reducing the frequency of gear jamming due to impurities.

[0018] 2. This utility model uses a steam heater to heat the viscous liquid in the pipe. During the heating process, bubbles in the liquid float to the top of the elbow due to the heat; the gas passes through the gas-liquid separator, effectively discharging the gas in the liquid, which can effectively prevent cavitation in the gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a circular gear flowmeter with viscosity compensation according to the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the gear box of the circular gear flowmeter with viscosity compensation of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the heating box of the circular gear flowmeter with viscosity compensation according to the present invention;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the filter of the circular gear flowmeter with viscosity compensation of the present invention;

[0023] Figure 5 This is a schematic cross-sectional view of the counting analyzer of the circular gear flowmeter with viscosity compensation according to the present invention.

[0024] Legend:

[0025] 1. Gearbox; 2. Box cover; 3. Meshing gear; 4. Rotating shaft; 5. Counter analyzer; 6. Adjustment button; 7. Data display; 8. Delivery pipe; 9. Y-type filter; 10. Filter bracket; 11. Filter cotton; 12. Replacement cover; 13. Discharge cover; 14. Heating box; 15. Delivery elbow; 16. Gas-liquid separator; 17. Exhaust pipe; 18. Counting gear disc; 19. Counting lever; 20. Connecting screw. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-Figure 2 and Figure 4 A circular gear flowmeter with viscosity compensation includes a gear box 1, wherein the top and bottom of the inner side of the gear box 1 are rotatably connected to a rotating shaft 4, and the middle part of the outer side of the rotating shaft 4 is rotatably connected to a meshing gear 3;

[0028] The front end of the gear box 1 is fixedly connected to a counting analyzer 5, the middle part of the left end of the gear box 1 is fixedly connected to a delivery pipe 8, the left end of the delivery pipe 8 is fixedly connected to a Y-type filter 9, and the middle part of the inner side of the Y-type filter 9 is slidably connected to a filter bracket 10; the outer side of the filter bracket 10 is fixedly connected to a filter cotton 11, and the viscous liquid is heated at high temperature through a heating box 14, so that the gas in the viscous liquid gradually rises to the bend of the delivery elbow 15, and then the gas in the viscous liquid is separated and discharged through the gas-liquid separator 16 in the exhaust pipe 17. After the liquid is input into the gear box 1 through the delivery pipe 8, it drives the meshing gear 3 to rotate.

[0029] Reference Figure 1 and Figure 3The left end of the Y-type filter 9 is fixedly connected to a heating box 14, the middle part of the inner side of the heating box 14 is fixedly connected to a delivery elbow 15, the middle side of the outer top of the delivery elbow 15 is fixedly connected to an exhaust pipe 17, and the middle and lower part of the inner side of the exhaust pipe 17 is fixedly connected to a gas-liquid separator 16. When the liquid is transported to the Y-type filter 9, the impurities in the liquid are filtered and removed through the filter cotton 11 in the Y-type filter 9.

[0030] Reference Figure 1-Figure 2 and Figure 4-Figure 5 The top of the gear box 1 is fixedly connected to a box cover 2, the middle of the right end of the gear box 1 is fixedly connected to a connecting solenoid 20, the left end of the delivery elbow 15 is fixedly connected to a connecting solenoid 20, the top of the front end of the counting analyzer 5 is fixedly connected to a data display 7, and the middle of the front end of the counting analyzer 5 is fixedly connected to adjustment buttons 6 equidistantly from left to right;

[0031] A counting lever 19 is fixedly connected to the middle and rear part of the inner side of the counting analyzer 5, a replacement cover 12 is threadedly connected to the bottom end of the Y-type filter 9, a discharge cover 13 is threadedly connected to the middle part of the bottom end of the replacement cover 12, and a counting toothed disc 18 is fixedly connected to the front part of the outer side of the bottom rotating shaft 4. The installer installs it to the infusion tube through the connecting screw 20 and discharges the filtered impurities by twisting the discharge cover 13;

[0032] According to the usage of the filter cotton 11, the filter cotton 11 is replaced by unscrewing the replacement cover 12, and the rotating shaft 4 drives the counting toothed disc 18 to rotate. The counting lever 19 that is continuously moved on the groove of the counting toothed disc 18 generates vibration. The vibration is converted into an electrical signal through the counting analyzer 5, and the data converted from the flow rate of the liquid is displayed through the data display 7.

[0033] Working principle: The installer installs the connecting screw tube 20 on the infusion tube. When the viscous liquid is being transported, the viscous liquid is heated at high temperature through the heating box 14, causing the gas in the viscous liquid to gradually rise to the bend of the delivery elbow 15, and then the gas in the viscous liquid is separated and discharged through the gas-liquid separator 16 in the exhaust pipe 17; when the liquid is transported to the Y-type filter 9, the impurities in the liquid are filtered and removed through the filter cotton 11 in the Y-type filter 9; the filtered impurities are discharged by twisting the discharge cover 13;

[0034] According to the usage of the filter cotton 11, the filter cotton 11 is replaced by unscrewing the replacement cover 12. Finally, after the liquid is input into the gear box 1 through the delivery pipe 8, it drives the meshing gear 3 to rotate, prompting the rotating shaft 4 to drive the counting toothed disc 18 to rotate. The counting lever 19 that is constantly moved on the groove of the counting toothed disc 18 generates vibration. The vibration is converted into an electrical signal through the counting analyzer 5, and the data converted into the flow rate of the liquid is displayed through the data display 7.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circular gear flowmeter with viscosity compensation, characterized in that: It comprises a gear box (1), wherein the top and bottom of the inner side of the gear box (1) are both rotatably connected to a rotating shaft (4), and the middle part of the outer side of the rotating shaft (4) is rotatably connected to a meshing gear (3); The front end of the gear box (1) is fixedly connected to a counting analyzer (5), the middle of the left end of the gear box (1) is fixedly connected to a delivery pipe (8), the left end of the delivery pipe (8) is fixedly connected to a Y-type filter (9), the middle of the inner side of the Y-type filter (9) is slidably connected to a filter bracket (10), the outer side of the filter bracket (10) is fixedly connected to a filter cotton (11), and the left end of the Y-type filter (9) is fixedly connected to a heating box (14); A delivery elbow (15) is fixedly connected to the middle of the inner side of the heating box (14), an exhaust pipe (17) is fixedly connected to the middle side of the outer top end of the delivery elbow (15), and a gas-liquid separator (16) is fixedly connected to the middle and lower part of the inner side of the exhaust pipe (17).

2. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: The top of the gear box (1) is fixedly connected with a box cover (2).

3. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: A connecting solenoid (20) is fixedly connected to the middle of the right end of the gear box (1), and a connecting solenoid (20) is fixedly connected to the left end of the delivery elbow (15).

4. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: A data display (7) is fixedly connected to the top of the front end of the counting analyzer (5), and adjustment buttons (6) are fixedly connected to the middle of the front end of the counting analyzer (5) at equal intervals from left to right.

5. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: A counting lever (19) is fixedly connected to the middle rear portion of the inner side of the counting analyzer (5).

6. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: The bottom end of the Y-type filter (9) is threadedly connected to a replacement cover (12), and the middle part of the bottom end of the replacement cover (12) is threadedly connected to a discharge cover (13).

7. A circular gear flowmeter with viscosity compensation according to claim 1, characterized in that: A counting toothed disc (18) is fixedly connected to the front portion of the outer side of the rotating shaft (4) at the bottom.

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