A device for detecting abnormal oil level in an oil tank

Abstract

The present invention discloses a device for detecting abnormal oil quantity in an oil tank, which relates to the technical field of oil storage tanks, including a tank body, the tank body is connected to an oil outlet pipe, the oil outlet pipe is connected to a flow detection mechanism, a floating ball that can float up due to the buoyancy of the oil is slidably connected inside the tank body; it also includes a left slider and a right slider that reciprocate, the floating ball can drive the left slider to move, the flow detection mechanism can drive the right slider to move, and when the left slider and the right slider are misaligned, the alarm mechanism can be powered on. This device can conveniently detect abnormal oil quantity in the oil tank, and when there is a deviation between the oil outlet and the oil volume dropped in the oil tank, an alarm can be issued in time, and the oil outlet pipe can be closed, effectively reducing safety hazards and facilitating inspection and maintenance by staff.

Description

Technical Field

[0001] The invention relates to the technical field of oil storage tanks, and in particular to a device for detecting abnormal oil level in an oil tank. Background Art

[0002] An oil storage tank, referred to as an oil tank or storage tank, is a large container with a relatively regular shape used to store oil. An oil tank is an important facility for storing and transporting oil in an oil depot. It is prone to oil seepage or leakage. If the tank wall ruptures and leaks, the oil leakage at the rupture can be visually seen. If the tank bottom ruptures and leaks, it will take a long time to get the alarm information. At the same time, the oil tank often delivers oil to the outside through valves, and some valves are prone to wear and leakage due to long-term use. The leakage of oil products will not only cause economic losses, but also cause greater safety hazards if the oil leakage is not discovered in time for a long time.

[0003] The patent with application announcement number CN 221458739 U discloses an oil leakage alarm device for an oil storage tank, including a tank body; an oil inlet is arranged on the top of the tank body, a valve is arranged at the entrance of the oil inlet, fixed collars are installed at the welds on both sides of the tank body, a bottom plate is arranged between the fixed collars on both sides, and an oil outlet is arranged at the bottom of the bottom plate; by arranging fixed collars and bottom plates at the welds and valves at the bottom of the tank body, the leaked oil is recovered through the No. 1 pipe and No. 2 pipe in the fixed collar and the bottom plate, so that the leaked oil presses the electrode block 1 and the electrode block 2 to contact and trigger an alarm, and the leaked oil is recovered through the oil leakage groove to avoid waste.

[0004] However, the above device still has the following problems: the alarm device will be triggered only when the oil leakage reaches a large extent, which may easily lead to a large amount of oil leakage, causing pollution or posing a safety hazard; some oil valves often do not leak oil when closed, and only leak oil when opened due to valve stem wear and other reasons, and the above device cannot detect such oil valves. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, a device for detecting abnormal oil level in an oil tank is provided.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] The present invention proposes an oil tank oil quantity abnormality detection device, comprising a tank body, the tank body is connected to an oil outlet pipe, the oil outlet pipe is connected to a flow detection mechanism, a float ball that can float up due to the buoyancy of the oil is slidably connected inside the tank body; it also includes a left slider and a right slider that can reciprocate, the float ball can drive the left slider to move, the flow detection mechanism can drive the right slider to move, and when the left slider and the right slider are misaligned, the alarm mechanism can be energized to work.

[0008] Preferably, a detection box is fixedly connected to the outer wall of the tank body, and the detection box is fixedly connected to a guide rod arranged in a vertical direction, and both the left slider and the right slider are slidably connected to the guide rod.

[0009] Preferably, the detection box is rotatably connected to a left cylindrical cam and a right cylindrical cam, the left cylindrical cam and the right cylindrical cam are respectively provided with a left slide groove and a right slide groove, the left slider is slidably arranged in the left slide groove, and the right slider is slidably arranged in the right slide groove.

[0010] Preferably, the tank body is rotatably connected to a rotating shaft, the rotating shaft fixing sleeve is provided with a first bevel gear, the left cylindrical cam fixing sleeve is provided with a second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other.

[0011] Preferably, the rotating shaft fixing sleeve is provided with a rope collecting wheel, a pull rope is wound around the rope collecting wheel, and the other end of the pull rope is connected to the float.

[0012] Preferably, the flow detection mechanism includes a first gear and a second gear, the first gear and the second gear are both rotatably connected to the oil outlet pipe, and the first gear and the second gear are meshed with each other.

[0013] Preferably, the tank body is rotatably connected to a transmission rod, the transmission rod is connected to a right cylindrical cam via a reducer, the first gear is fixedly connected to the transmission rod, and the transmission rod is rotatably connected to the oil outlet pipe.

[0014] Preferably, the first gear and the second gear are connected via independent one-way bearings and oil outlet pipes respectively, and the one-way bearings enable the first gear and the second gear to rotate in only one direction.

[0015] Preferably, the right slider is slidably connected to a card rod, the card rod is connected to the right slider through a spring, and the left slider is provided with a card slot for the card rod to slide into; the card rod is fixedly connected to a conductive plate, and the right slider is connected to a contact that cooperates with the conductive plate.

[0016] Preferably, when the conductive plate and the contact are in contact, the alarm mechanism is powered on and starts working. When the card rod slides into the card slot, the conductive plate moves to the side of the contact, and the alarm mechanism is powered off and stops working.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present application is provided with a left slider and a right slider, and the float and the flow detection mechanism can respectively drive the left slider and the right slider to reciprocate. When there is a deviation between the oil output and the oil amount dropped in the tank body, the left slider and the right slider slide relative to each other, and the alarm mechanism can be energized to work, so that the abnormal oil amount in the tank body can be detected more conveniently, the alarm can be issued in time, and the oil outlet pipe can be closed, which effectively reduces safety hazards and is convenient for staff to inspect and repair.

[0019] The present application is provided with a cylindrical cam. When the float ball descends, it can drive the left cylindrical cam to rotate, causing the left slider to reciprocate. When the oil outlet pipe discharges oil, the oil can drive the first gear to rotate. The first gear drives the right cylindrical cam to rotate through the reducer, causing the right slider to reciprocate. The first gear and the second gear are both unidirectional rotations. When one of the gears is oiled, it can drive the other gear to rotate. This method can effectively improve the accuracy.

[0020] The present application is provided with a card slot. When the card rod is located in the card slot, the conductive plate moves to the side of the contact, and the alarm mechanism is powered off and stops working. When the card rod moves out of the card slot, the spring can drive the conductive plate to move. When the conductive plate and the contact are in contact, the alarm mechanism can be powered on and work. By reasonably setting the width of the card slot, it can be achieved that the alarm is only triggered when the left slider and the right slider are misaligned to a certain extent, which can effectively reduce false alarms, improve the accuracy of alarms, and prevent frequent alarms from affecting the oil output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 It is the overall front view of the present invention;

[0024] Figure 3 It is a schematic diagram of the partial structure of the detection box;

[0025] Figure 4 It is a top view of the structure of the left slider;

[0026] Figure 5 It is a schematic diagram of the flow detection mechanism structure (working state one);

[0027] Figure 6 It is a schematic diagram of the flow detection mechanism structure (working state 2);

[0028] Figure 7 It is a schematic diagram of the flow detection mechanism structure (working state three);

[0029] Figure 8 It is a side view of the transmission rod structure.

[0030] Description of reference numerals:

[0031] 1. Tank body; 2. Oil inlet; 3. Oil outlet pipe; 4. Valve; 5. One-way bearing; 6. Test box; 7. Transmission rod; 8. Reducer; 9. Inspection cover; 10. Float; 11. Rope reel; 12. Rotating shaft; 13. Clamping rod; 14. Guide rod; 15. Baffle; 16. Electric push rod; 17. Clamping slot; 18. Left slider; 19. Right slider; 20. Left cylindrical cam; 21. Right cylindrical cam; 22. Oil; 23. Conductive plate; 24. Spring; 25. Contact; 26. First gear; 27. Second gear. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] like Figure 1-Figure 8 As shown, this embodiment proposes an oil tank oil level abnormality detection device, including a tank body 1, an oil outlet pipe 3 is fixedly connected to the bottom end of the tank body 1, the tank body 1 and the oil outlet pipe 3 are connected, the oil outlet pipe 3 is connected to a valve 4, the opening and closing of the oil outlet pipe 3 can be controlled by the valve 4, the valve 4 is specifically a ball valve, which can be used to adjust and control the oil output.

[0034] An oil inlet 2 is provided at the upper end of the tank body 1, and the oil inlet 2 is rotatably connected to an upper cover. By opening the upper cover, oil 22 can be transported to the tank body 1 through the oil inlet 2 for storage. By connecting the oil outlet pipe 3 with a mechanism that can receive the oil 22, the mechanism that can receive the oil 22 includes a tank truck, etc., and by opening the valve 4, the oil outlet can be achieved. The outer wall of the tank body 1 is also provided with scale lines, and a liquid level monitoring mechanism is provided in the tank body 1. The scale lines cooperate with the liquid level monitoring mechanism to monitor the liquid level height in the tank body 1.

[0035] The oil outlet pipe 3 is connected to a flow detection mechanism, a float 10 which can float up due to the buoyancy of the oil 22 is slidably connected inside the tank body 1, a slider which can only move in the vertical direction is slidably connected to the inner wall of the tank body 1, and the float 10 and the slider are detachably connected so that the float 10 can only slide in the vertical direction.

[0036] It also includes a reciprocating left slider 18 and a right slider 19. The float 10 can drive the left slider 18 to move, and the flow detection mechanism can drive the right slider 19 to move. In the initial state, the left slider 18 and the right slider 19 are in a state of being flush with each other, and the movement trajectories of the left slider 18 and the right slider 19 are the same. When the left slider 18 and the right slider 19 are misaligned, the alarm mechanism can be energized to work.

[0037] The float 10 and the flow detection mechanism can respectively drive the left slider 18 and the right slider 19 to reciprocate. When there is a deviation between the oil output and the oil volume dropped in the tank body 1, the left slider 18 and the right slider 19 slide relative to each other, and the alarm mechanism can be powered on to detect the abnormal oil volume in the tank body 1. The alarm can be issued in time, and the oil outlet pipe 3 can be closed, which effectively reduces safety hazards and facilitates inspection and maintenance by staff.

[0038] The outer wall of the tank body 1 is fixedly connected with a detection box 6, and the detection box 6 is fixedly connected with a guide rod 14 set in the vertical direction. The left slider 18 and the right slider 19 are both slidably connected with the guide rod 14. Under the action of the guide rod 14, the left slider 18 and the right slider 19 can only slide in the vertical direction but will not rotate. The detection box 6 is rotatably connected with an inspection cover 9. By opening the inspection cover 9, the inspection and maintenance of the internal components of the detection box 6 can be facilitated.

[0039] The detection box 6 is rotatably connected to the left cylindrical cam 20 and the right cylindrical cam 21. The left cylindrical cam 20 and the right cylindrical cam 21 are respectively provided with a left slide groove and a right slide groove. The left slider 18 is slidably set in the left slide groove, and the right slider 19 is slidably set in the right slide groove. The left slide groove and the right slide groove are interconnected end to end. Therefore, when the left cylindrical cam 20 and the right cylindrical cam 21 rotate, the left slider 18 and the right slider 19 can be driven to reciprocate in the vertical direction.

[0040] The tank body 1 is rotatably connected with a rotating shaft 12, a fixed sleeve of the rotating shaft 12 is provided with a first bevel gear, a fixed sleeve of the left cylindrical cam 20 is provided with a second bevel gear, the first bevel gear and the second bevel gear are meshed, a sealing plug is provided at the connection between the rotating shaft 12 and the tank body 1, thereby playing a sealing role, the rotating shaft 12 is arranged in the horizontal direction and passes through the outer wall of the tank body 1.

[0041] The rotating shaft 12 is fixed with a rope wheel 11, and the rope wheel 11 is wound with a pull rope, and the other end of the pull rope is connected to the float 10. When the float 10 descends, the pull rope can be driven to descend, and the pull rope can drive the rope wheel 11 to rotate, and the rope wheel 11 can drive the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, the left cylindrical cam 20 can be driven to rotate through the first bevel gear and the second bevel gear.

[0042] The flow detection mechanism includes a first gear 26 and a second gear 27. The first gear 26 and the second gear 27 are both rotatably connected to the oil outlet pipe 3. The first gear 26 and the second gear 27 are meshed with each other. The first gear 26 and the second gear 27 are both elliptical gears and are in a meshing state. The first gear 26 and the second gear 27 respectively form gaps with the inner wall of the oil outlet pipe 3 for the oil 22 to pass through.

[0043] Compared with the method of directly using a water wheel, the water wheel may stop rotating or get stuck due to insufficient flow rate and other reasons, and the rotation speed of the water wheel is not stable enough. However, the flow detection mechanism described in the present application, when one of the gears rotates, it will inevitably drive the other gear to rotate because it is in a meshing state with the other gear. This method can effectively improve the accuracy and overcome the shortcomings of water wheel drive.

[0044] The first gear 26 and the second gear 27 are connected to the oil outlet pipe 3 through independent one-way bearings 5, respectively. The one-way bearings 5 ​​allow the first gear 26 and the second gear 27 to rotate in only one direction. The first gear 26 and the second gear 27 rotate in opposite directions.

[0045] The one-way bearing 5 is a kind of bearing that can rotate freely in one direction and is locked in the other direction. The metal shell of the one-way bearing 5 contains many rollers, needle rollers or balls, and the shape of its rolling seat (hole) makes it roll only in one direction, and it will produce great resistance in the other direction (so-called "one-way").

[0046] The tank body 1 is rotatably connected with a transmission rod 7, which is connected to the right cylindrical cam 21 through a reducer 8, the first gear 26 is fixedly connected to the transmission rod 7, and the transmission rod 7 is rotatably connected to the oil outlet pipe 3. The reduction ratio of the reducer 8 is related to the descending speed of the float 10. Tanks 1 with different diameters use reducers 8 with different reduction ratios, so that when no oil leakage occurs, the rotation speed of the left cylindrical cam 20 driven by the float 10 is the same as the rotation speed of the right cylindrical cam 21 driven by the first gear 26.

[0047] The reducer 8 is an independent component composed of a gear transmission, a worm transmission, and a gear-worm transmission enclosed in a rigid housing. The principle of the reducer 8 is to use various levels of gear transmission to achieve the purpose of speed reduction. The speed ratio (transmission ratio) of the reducer 8 is the ratio of the input shaft speed to the output shaft speed. The reducer 8 includes an output shaft and an input shaft. The input shaft is fixedly connected to the first gear 26 through a transmission rod 7, and the output shaft is fixedly connected to the right cylindrical cam 21 through a transmission rod 7. The two transmission rods 7 are independently arranged.

[0048] The right slider 19 is slidably connected to the card rod 13, which is connected to the right slider 19 through a spring 24. The left slider 18 is provided with a card slot 17 for the card rod 13 to slide into; the card rod 13 is fixedly connected to the conductive plate 23, and the right slider 19 is connected to a contact 25 that cooperates with the conductive plate 23.

[0049] The right end of the spring 24 is connected to the right slider 19, and the left end of the spring 24 is connected to the latch rod 13. When the latch rod 13 is located in the latch slot 17, the spring 24 is in a compressed state, the conductive plate 23 moves to the side of the contact 25, and the alarm mechanism is powered off and stops working; when the latch rod 13 moves out of the latch slot 17, under the elastic force of the spring 24, the conductive plate 23 contacts the contact 25. The alarm mechanism is specifically an alarm fixed on the outer wall of the tank body. At this time, the alarm can form a complete circuit to realize power-on operation, and the alarm triggers an alarm.

[0050] By properly setting the width of the card slot 17, an alarm is triggered only when the left slider 18 and the right slider 19 are misaligned to a certain extent, which can effectively reduce false alarms, improve the accuracy of alarms, and prevent frequent alarms from affecting oil output efficiency.

[0051] The tank body 1 is fixedly connected with an electric push rod 16, and the electric push rod 16 is connected with a baffle 15 that can block the oil outlet pipe 3. The right slider 19 is also connected with a proximity switch arranged on one side of the contact 25. The conductive plate 23 is fixedly connected with an inductive metal sheet that cooperates with the proximity switch. When the conductive plate 23 moves to contact with the contact 25, the inductive metal sheet just moves to the side of the proximity switch. The proximity switch can make the electric push rod 16 work, and the electric push rod 16 drives the baffle 15 to move, thereby realizing the blocking work of the oil outlet pipe 3.

[0052] A proximity switch is a position switch that can be operated without direct mechanical contact with moving parts. When the sensing metal sheet approaches the sensing surface of the switch to the action distance, the switch can be activated without mechanical contact or any pressure, thereby driving a DC appliance or providing control instructions to a computer (PLC) device to make the electric push rod 16 work.

[0053] A method for using an oil tank oil level abnormality detection device, using the above-mentioned oil tank oil level abnormality detection device, comprises the following steps:

[0054] S1: The oil outlet of the tank body 1 is realized through the oil outlet pipe 3. As the oil 22 in the tank body 1 drops, the float 10 is driven to drop. The float 10 drives the rope-collecting wheel 11 to rotate through the pull rope. The rope-collecting wheel 11 drives the left cylindrical cam 20 to rotate. At the same time, when the oil 22 passes through the oil outlet pipe 3, it drives the first gear 26 and the second gear 27 to rotate. The first gear 26 drives the right cylindrical cam 21 to rotate.

[0055] S2: When the rope-collecting wheel 11 rotates, the rotating shaft 12 is driven to rotate, the rotating shaft 12 drives the left cylindrical cam 20 to rotate, the first gear 26 drives the transmission rod 7 to rotate, and the transmission rod 7 drives the right cylindrical cam 21 to rotate through the reducer 8. The reducer 8 can adjust the rotation speed and rotation direction of the right cylindrical cam 21. Under the action of the reducer 8, the right cylindrical cam 21 and the left cylindrical cam 20 can rotate at the same speed and in opposite directions;

[0056] The left cylindrical cam 20 drives the left slider 18 to reciprocate in the vertical direction, and the right cylindrical cam 21 drives the right slider 19 to reciprocate in the vertical direction. Since the right cylindrical cam 21 and the left cylindrical cam 20 rotate at the same speed and in opposite directions, the right slider 19 and the left slider 18 can move synchronously. At this time, the clamping rod 13 connected to the right slider 19 is located in the clamping groove 17 provided in the left slider 18, the spring 24 is in a compressed state, the conductive plate 23 moves to the side of the contact 25, and the alarm mechanism is powered off and stops working;

[0057] The width of the left slider 18 is the same as that of the right slider 19. When leakage occurs, the descending speed of the oil 22 in the tank body 1 or the oil outlet speed of the oil outlet pipe 3 becomes abnormal, resulting in the right cylindrical cam 21 and the left cylindrical cam 20 rotating at different speeds, and then the right slider 19 and the left slider 18 moving at different speeds. Therefore, the movement trajectories of the right slider 19 and the left slider 18 are no longer synchronized, causing the right slider 19 and the left slider 18 to be misaligned. When the degree of misalignment between the right slider 19 and the left slider 18 is greater than the width of the left slider 18, the clamping rod 13 connected to the right slider 19 will slide out of the clamping slot 17 provided in the left slider 18. Under the elastic force of the spring 24, the conductive plate 23 contacts the contact 25, and the alarm mechanism is energized to work to realize the alarm.

[0058] If the tank body 1 ruptures, the descending speed of the oil 22 in the tank body 1 will become faster. If a leak occurs at the valve 4, or a leak occurs at the connection between the oil outlet pipe 3 and the mechanism that can receive the oil 22, the mechanism that can receive the oil 22 includes an oil tanker, etc., the oil outlet speed of the oil outlet pipe 3 will become faster. In the above two situations, the movement speeds of the left slider 18 and the right slider 19 will no longer be synchronized, which can be applied to a variety of oil leakage situations. Therefore, the present device can better realize the abnormal oil amount detection of the tank body 1.

[0059] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device for detecting abnormal oil level in an oil tank, comprising a tank body (1), characterized in that: The tank body (1) is connected to an oil outlet pipe (3), the oil outlet pipe (3) is connected to a flow detection mechanism, and a floating ball (10) is slidably connected inside the tank body (1) and can float upward due to the buoyancy of the oil (22); the tank body (1) also includes a left slider (18) and a right slider (19) that can reciprocate, the floating ball (10) can drive the left slider (18) to move, and the flow detection mechanism can drive the right slider (19) to move, and when the left slider (18) and the right slider (19) are misaligned, the alarm mechanism can be energized to operate; A detection box (6) is fixedly connected to the outer wall of the tank body (1), the detection box (6) is fixedly connected to a guide rod (14) arranged in a vertical direction, and a left slider (18) and a right slider (19) are both slidably connected to the guide rod (14); The detection box (6) is rotatably connected to a left cylindrical cam (20) and a right cylindrical cam (21); the left cylindrical cam (20) and the right cylindrical cam (21) are respectively provided with a left slide groove and a right slide groove; the left slider (18) is slidably disposed in the left slide groove; and the right slider (19) is slidably disposed in the right slide groove; The tank body (1) is rotatably connected to a rotating shaft (12), a first bevel gear is fixedly mounted on the rotating shaft (12), a second bevel gear is fixedly mounted on the left cylindrical cam (20), and the first bevel gear and the second bevel gear are meshed with each other; The rotating shaft (12) is fixedly sleeved with a rope collecting wheel (11), a pull rope is wound around the rope collecting wheel (11), and the other end of the pull rope is connected to the floating ball (10); The flow detection mechanism comprises a first gear (26) and a second gear (27), the first gear (26) and the second gear (27) are both rotatably connected to the oil outlet pipe (3), and the first gear (26) and the second gear (27) are meshed; The tank body (1) is rotatably connected to a transmission rod (7), the transmission rod (7) is connected to a right cylindrical cam (21) via a reducer (8), the first gear (26) is fixedly connected to the transmission rod (7), and the transmission rod (7) is rotatably connected to the oil outlet pipe (3); The right slider (19) is slidably connected to a clamping rod (13), the clamping rod (13) being connected to the right slider (19) via a spring (24), and the left slider (18) is provided with a clamping groove (17) into which the clamping rod (13) can slide; the clamping rod (13) is fixedly connected to a conductive plate (23), and the right slider (19) is connected to a contact (25) that matches the conductive plate (23); When the conductive plate (23) and the contact point (25) are in contact, the alarm mechanism is powered on and starts working. When the card rod (13) slides into the card slot (17), the conductive plate (23) moves to the side of the contact point (25), and the alarm mechanism is powered off and stops working.

2. The oil tank oil level abnormality detection device according to claim 1 is characterized in that: The first gear (26) and the second gear (27) are respectively connected via independent one-way bearings (5) and oil outlet pipes (3); the one-way bearings (5) enable the first gear (26) and the second gear (27) to rotate in only one direction.

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