Oil storage tank liquid level measuring device
By designing cleaning components in the oil storage tank level measurement device and cleaning impurities on the sensing link, the problem of impurities in petroleum caused by poor floating ball movement is solved, and the accuracy and stability of measurement are improved.
Patent Information
- Application Number
- CN202421029885.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-13
AI Technical Summary
When using a float level detector to conduct liquid level detection on a petroleum oil storage tank, the oil contains impurities, which may block the inlet of the level gauge or accumulate on the guide rail, resulting in poor floating ball movement or stuck, reducing measurement accuracy .
A liquid level measuring device for oil storage tanks is designed, including cleaning components, including motor, transmission, screw rod, slider, ring and brush. The screw rod is driven by the motor, and the slider and ring drive the brush edge sense. The connecting rod slides up and down to clean up the adhered impurities and ensure the normal movement of the float.
It effectively prevents impurities from hindering the movement of the float, improves the accuracy and stability of the measurement, and avoids the reduction of the measurement accuracy of the float liquid level meter.
Smart Images
Figure CN222475103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid level measurement, and more specifically, to a liquid level measuring device for an oil storage tank. Background Art
[0002] Oil storage tanks are often used in oil production and daily processing. Oil storage tanks can be used to hold liquid goods, such as crude oil or processed oil. The liquid level in the oil storage tank can be detected by a liquid level measuring device, so as to know the liquid stock in the oil storage tank. There are many types of oil storage tank level measuring devices, and commonly used ones include float level gauges, differential pressure level gauges, magnetostrictive level gauges, servo level gauges, ultrasonic level gauges and radar level gauges.
[0003] A float-type liquid level gauge is a measuring device that works based on the principle of buoyancy and is used to monitor the liquid level in containers such as oil storage tanks. The working principle of a float-type liquid level gauge is to use the buoyancy of the float (also called a float ball) in the liquid to balance the gravity so that it follows the rise and fall of the liquid level. The float usually has a built-in magnet. Through magnetic coupling, the float ball floats along the sensing connecting rod and converts the liquid level change into a linear change in resistance or a change in electrical quantity. This change can be converted into a standard 4-20mA current signal through an intelligent converter, which is convenient for remote display and control.
[0004] When using a float level detector to detect the liquid level of an oil storage tank, the sensing connecting rod is immersed in oil for a long time. The oil contains impurities, which may block the inlet of the level meter or accumulate on the guide rail, causing the float to move poorly or get stuck, and reducing the measurement accuracy of the float level meter.
[0005] Therefore, in order to solve the above technical problems, the present application proposes an oil tank liquid level measuring device. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model aims to provide a device for measuring the liquid level of an oil storage tank.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil tank liquid level measuring device, comprising a bracket and an oil tank body installed on the bracket, a tank cover installed on the oil tank body, a cleaning assembly provided on the tank cover, the cleaning assembly comprising a motor, a transmission, a screw, a slider, a ring and a brush, the power output end of the motor is connected to the transmission, the transmission is installed on the tank cover, the power output end of the transmission is connected to the screw, a slider is threadedly connected to the screw, the slider is fixedly connected to a ring, a brush is installed on the inner side of the ring, the ring is sleeved with a sensing connecting rod, the motor drives the screw to rotate, the slider slides up and down along the screw, driving the ring and the brush on the ring to slide up and down on the sensing connecting rod, the brush cleans away impurities adhered to the sensing connecting rod during the sliding process, and prevents the impurities adhered to the sensing connecting rod from hindering the floating of the float.
[0008] Preferably, a float is sleeved on the sensing connecting rod, and one end of the sensing connecting rod is fixedly connected to a limit plate for preventing the float from detaching from the sensing connecting rod. A wave-breaking baffle is installed on the tank cover to reduce the influence of liquid level fluctuation on the measurement and improve the measurement accuracy. A filter is installed on the end of the wave-breaking baffle away from the tank cover, and the sensing connecting rod and the screw rod are both arranged in the wave-breaking baffle to prevent a large amount of impurities from entering the interior of the liquid level meter.
[0009] Preferably, the wave-breaking baffle is a hollow cylinder with openings at both ends, and a plurality of ventilation holes are provided on the cylindrical surface of the wave-breaking baffle at one end close to the tank cover to avoid measurement errors caused by air pressure differences.
[0010] Preferably, the sensing connecting rod is connected to a liquid level gauge instrument panel via a flange, and the flange is mounted on the tank cover. The difference between the inner diameter of the float and the outer diameter of the sensing connecting rod is half of the difference between the inner and outer diameters of the float. The float has large pores and is less affected by impurities adhering to the sensing connecting rod. The larger pores can reduce the resistance of the liquid to the float, making the float move up and down in the liquid more smoothly, which helps to maintain the stable operation of the liquid level gauge. The difference between the inner diameter of the float and the outer diameter of the sensing connecting rod is smaller than the shortest distance between the sensing connecting rod and the screw rod, preventing the float from colliding with the screw rod during the floating process.
[0011] Preferably, the tank cover is connected to an oil inlet pipe, and the oil storage tank body is connected to an oil outlet pipe.
[0012] Preferably, the connection between the oil inlet pipe and the tank cover is far away from the sensing connecting rod, so as to reduce the fluctuation and impact caused by the oil inlet flow, thereby avoiding interference with the float position and ensuring the stability and accuracy of the liquid level reading.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the utility model, by setting a cleaning component, the motor drives the screw to rotate, the slider slides up and down along the screw, and drives the ring and the brush on the ring to slide up and down along the sensing connecting rod. The brush cleans the impurities adhering to the sensing connecting rod during the sliding process, preventing the impurities adhering to the sensing connecting rod from hindering the floating ball, ensuring the accuracy of the measurement, thereby solving the problem mentioned in the background technology that the impurities contained in the petroleum may block the inlet of the liquid level meter or accumulate on the guide rail, resulting in poor movement or jamming of the float, and reducing the measurement accuracy of the float type liquid level meter.
[0015] 2. In the utility model, by installing a wave-breaking baffle, the influence of liquid level fluctuation on the measurement is reduced, and the measurement accuracy is improved. A filter is installed at the end of the wave-breaking baffle away from the tank cover to reduce the adhesion of impurities on the sensing connecting rod.
[0016] 3. In the utility model, by setting the difference between the inner diameter of the float and the outer diameter of the sensing connecting rod to be one-half of the difference between the inner and outer diameters of the float, the float is less affected by the impurities adhering to the sensing connecting rod, and the larger pores can reduce the resistance of the liquid to the float, so that the float moves up and down in the liquid more smoothly, which helps to maintain the stable operation of the liquid level meter. By setting the difference between the inner diameter of the float and the outer diameter of the sensing connecting rod to be smaller than the shortest distance between the sensing connecting rod and the screw rod, the float is prevented from colliding with the screw rod during the floating process, thereby affecting the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the wave-breaking baffle in the utility model;
[0020] Figure 3 It is a structural schematic diagram of the cleaning component in the utility model;
[0021] Figure 4 It is a cross-sectional view of the internal structure of the wave-breaking baffle in the utility model.
[0022] 1. Oil storage tank body; 2. Bracket; 3. Tank cover; 4. Oil inlet pipe; 5. Oil outlet pipe; 6. Cleaning assembly; 601. Motor; 602. Transmission; 603. Screw rod; 604. Slider; 605. Ring; 606. Brush; 7. Level gauge panel; 8. Flange; 9. Sensing connecting rod; 10. Float; 11. Limit plate; 12. Wave baffle; 13. Filter; 14. Vent. DETAILED DESCRIPTION
[0023] like Figure 1-4 As shown, the utility model provides an oil tank liquid level measuring device, including a bracket 2 and an oil tank body 1 installed on the bracket 2, a tank cover 3 is installed on the oil tank body 1, a cleaning assembly 6 is arranged on the tank cover 3, the cleaning assembly 6 includes a motor 601, a transmission 602, a screw 603, a slider 604, a ring 605 and a brush 606, the power output end of the motor 601 is connected to the transmission 602, the transmission 602 is installed on the tank cover 3, the power output end of the transmission 602 is connected to the screw 603, the screw 604 03 is threadedly connected with a slider 604, a ring 605 is fixedly connected to the slider 604, a brush 606 is installed inside the ring 605, and the ring 605 is sleeved with a sensing link 9. The motor 601 drives the screw rod 603 to rotate, and the slider 604 slides up and down along the screw rod 603, driving the ring 605 and the brush 606 on the ring 605 to slide up and down on the sensing link 9. The brush 606 cleans the impurities adhering to the sensing link 9 during the sliding process to prevent the impurities adhering to the sensing link 9 from hindering the floating ball 10 from floating;
[0024] One end of the sensing connecting rod 9 is fixedly connected with a limit plate 11 for preventing the float 10 from detaching from the sensing connecting rod 9. A wave-proof baffle 12 is installed on the tank cover 3. The wave-proof baffle 12 is a hollow cylinder with openings at both ends. The wave-proof baffle 12 can reduce the influence of liquid level fluctuation on the measurement and improve the measurement accuracy. A filter screen 13 is installed at the end of the wave-proof baffle 12 away from the tank cover 3. The sensing connecting rod 9 and the screw rod 603 are both arranged in the wave-proof baffle 12 to prevent a large amount of impurities from entering the interior of the liquid level meter. A plurality of groups of vent holes 14 are provided on the cylindrical surface of the wave-proof baffle 12 near the tank cover 3 to avoid measurement errors caused by air pressure differences.
[0025] The sensing connecting rod 9 is connected to the liquid level meter instrument panel 7 through the flange 8, and the flange 8 is installed on the tank cover 3. The sensing connecting rod 9 is sleeved with a floating ball 10. The difference between the inner diameter of the floating ball 10 and the outer diameter of the sensing connecting rod 9 is half of the difference between the inner and outer diameters of the floating ball 10. The floating ball 10 has a large pore and is less affected by the impurities adhering to the sensing connecting rod 9. The larger pores can reduce the resistance of the liquid to the floating ball 10, so that the floating ball 10 moves up and down in the liquid more smoothly, which helps to maintain the stable operation of the liquid level meter. The difference between the inner diameter of the floating ball 10 and the outer diameter of the sensing connecting rod 9 is less than the shortest distance between the sensing connecting rod 9 and the screw 603, which prevents the floating ball 10 from colliding with the screw 603 during the floating process.
[0026] An oil outlet pipe 5 is connected to the oil storage tank body 1, and an oil inlet pipe 4 is connected to the tank cover 3. The connection between the oil inlet pipe 4 and the tank cover 3 is far away from the sensing connecting rod 9, which can reduce the fluctuation and impact caused by the oil inlet flow, thereby avoiding interference with the position of the float 10 and ensuring the stability and accuracy of the measurement.
[0027] The above description is only a preferred embodiment of the present invention. The description of orientation, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and does not impose any form of limitation on the present invention; any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings of the specification and described above; however, any equivalent changes, modifications and evolutions made by any technician familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.
Claims
1. An oil tank liquid level measuring device, comprising a bracket (2) and an oil tank body (1) mounted on the bracket (2), wherein a tank cover (3) is mounted on the oil tank body (1), characterized in that: The tank cover (3) is provided with a cleaning assembly (6), the cleaning assembly (6) comprising a motor (601), a transmission (602), a screw (603), a slider (604), a ring (605) and a brush (606); the power output end of the motor (601) is connected to the transmission (602); the transmission (602) is mounted on the tank cover (3); the power output end of the transmission (602) is connected to the screw (603); the slider (604) is threadedly connected to the screw (603); the slider (604) is fixedly connected to the ring (605); the inner side of the ring (605) is mounted with a brush (606); the ring (605) is sleeved with a sensing connecting rod (9).
2. The oil tank level measuring device according to claim 1, characterized in that: A floating ball (10) is sleeved on the sensing connecting rod (9), and one end of the sensing connecting rod (9) is fixedly connected to a limit plate (11) for preventing the floating ball (10) from detaching from the sensing connecting rod (9). A wave-breaking baffle (12) is installed on the tank cover (3), and a filter screen (13) is installed at one end of the wave-breaking baffle (12) away from the tank cover (3). The sensing connecting rod (9) and the screw rod (603) are both arranged in the wave-breaking baffle (12).
3. The oil tank liquid level measuring device according to claim 2 is characterized in that: The wave-proof baffle (12) is a hollow cylinder with openings at both ends, and a plurality of groups of ventilation holes (14) are provided on one end of the cylindrical surface of the wave-proof baffle (12) close to the tank cover (3).
4. The oil tank liquid level measuring device according to claim 2, characterized in that: The sensing connecting rod (9) is connected to a liquid level meter instrument panel (7) via a flange (8), and the flange (8) is mounted on the tank cover (3). The difference between the inner diameter of the float (10) and the outer diameter of the sensing connecting rod (9) is half of the difference between the inner and outer diameters of the float (10). The difference between the inner diameter of the float (10) and the outer diameter of the sensing connecting rod (9) is smaller than the shortest distance between the sensing connecting rod (9) and the screw rod (603).
5. The oil tank liquid level measuring device according to claim 1, characterized in that: The tank cover (3) is connected to an oil inlet pipe (4), and the oil storage tank body (1) is connected to an oil outlet pipe (5).
6. The oil tank liquid level measuring device according to claim 5, characterized in that: The connection point between the oil inlet pipe (4) and the tank cover (3) is far away from the sensing connecting rod (9).