A tank storage oil spill prevention linkage monitoring and early warning system

Abstract

The application discloses a kind of tank storage oil spillage prevention linkage monitoring early warning system of oil storage technical field, including the first liquid level meter for monitoring the liquid level in storage tank, including the ambient temperature sensor being laid in the preset range around storage tank and the fire wall being lifted and arranged around storage tank, fire wall starts when ambient temperature exceeds threshold value to carry out fireproofing and heat insulation, early warning system further includes double control valve and overflow component.The application is warned when the liquid level in storage tank reaches a certain degree by setting linkage early warning system, and it has environmental temperature early warning, fire wall is started when environmental temperature reaches a certain degree, and valve body is closed at the same time, to carry out double insurance, greatly reduce the probability of safety accident occurrence;By setting double control valve, valve body can be forced to close when external temperature is out of control and leads to insufficient protection ability of fire wall, and in the case that electric control unit is out of control, to prevent storage tank from out-of-control overflow and increase fire.

Description

Technical Field

[0001] This invention relates to the field of oil storage, and more specifically to a tank storage oil overflow prevention and early warning system. Background Technology

[0002] In some metal and chemical production fields, the storage of oil is crucial. Improper storage can easily lead to accidents. Oil is a flammable substance and the liquid is easy to spread. If the liquid level is not properly controlled, it can easily overflow outside the tank. When it comes into contact with static electricity or open flame, it can easily cause a major safety accident. Therefore, in the existing technology, a liquid level gauge is generally installed in the storage tank for liquid level warning. When the liquid level reaches the warning threshold, the oil entry channel is closed to stop the oil from entering the storage tank.

[0003] This control method is not suitable for workshop environments that are prone to high temperatures. If high temperatures are caused by other reasons, electronic components such as electronic valves and level gauges may fail, making it difficult to detect hidden dangers and shut off the oil inlet pipe in time. In this case, the high temperature combined with the overflowing oil can easily cause a major safety accident with a chain reaction. Summary of the Invention

[0004] The purpose of this invention is to provide a tank storage oil overflow prevention linkage monitoring and early warning system, which solves the early warning problem of existing oil storage tanks in environments prone to high temperatures.

[0005] The present invention achieves the above objectives through the following technical solutions: An overflow prevention and early warning system for oil storage tanks includes a first level gauge for monitoring the liquid level inside the tank. The system is characterized by including an ambient temperature sensor deployed within a preset range around the tank and a firewall that is raised and lowered around the tank. The firewall is activated to provide fire protection and heat insulation when the ambient temperature exceeds a threshold. The early warning system also includes a dual-control valve and an overflow assembly. The dual-control valve is used to control the opening and closing of the oil inlet pipe of the storage tank. It includes a valve body, an electrical control unit and a mechanical control unit. The electrical control unit is used to shut off the oil inlet pipe when the liquid level in the storage tank reaches a threshold or the ambient temperature exceeds a threshold. The overflow assembly is used to collect overflow oil and includes an overflow tank. The overflow tank is equipped with a mechanical drive assembly to close the valve body by pressure drive of the mechanical control unit when the liquid level in the overflow tank reaches a preset height.

[0006] As a preferred embodiment of the present invention, the inlet of the valve body is used to connect to the oil pipeline, and the outlet is provided with an oil inlet pipe that connects to the upper end of the storage tank. The bottom of the storage tank is also provided with an oil outlet pipe with a valve. This embodiment is a conventional structure of the storage tank, with oil entering through the oil pipeline and draining through the oil outlet pipe. For ease of control, a valve is provided on the oil outlet pipe.

[0007] As a preferred embodiment of the present invention, the early warning system further includes a controller and an audible and visual alarm. A second level gauge is installed in the overflow tank. When the first and second level gauges reach their thresholds, the controller controls the audible and visual alarms to emit different alarm sounds. This solution provides multi-level early warning by setting two level gauges and an audible and visual alarm. When the liquid level in the storage tank reaches the warning height, an alarm is issued. When the liquid level in the overflow tank reaches the threshold, a higher-level warning is issued. Different alarm sounds are used to warn of different levels of warning. When the storage tank liquid level is under warning, the electronic control unit of the dual-control valve closes the valve body. If the electronic control unit fails to execute due to other reasons (such as motor failure caused by high temperature), oil enters the overflow tank, and the overflow tank liquid level is under secondary warning.

[0008] As a preferred embodiment of the present invention, an overflow pipe communicating with an overflow tank is provided on the side surface of the valve body near the top. An exhaust device is provided on the overflow tank, and a sealing mechanism is also provided inside the overflow tank to close the exhaust device when the liquid level in the overflow tank reaches a threshold, so as to increase the pressure inside the overflow tank. By setting a sealing mechanism, this embodiment ensures that when the liquid level in the overflow tank reaches a certain level, exhaust stops, and the pressure in the overflow pipe acts on the overflow tank. Higher pressure can increase the reliability of the mechanical drive component operation.

[0009] As a preferred embodiment of the present invention, the sealing mechanism includes a sliding seat disposed on the side wall of the overflow tank and a slider that slides along the sliding seat. The upper part of the slider is provided with a conical sealing head and the bottom is provided with an air flotation device. The top of the overflow tank is provided with a conical through groove that connects to the exhaust device. The conical sealing head is used to close the conical through groove when the liquid level in the overflow tank reaches a threshold. This embodiment further provides a specific structure for the sealing mechanism, which, through the air flotation device, causes the conical sealing head to press against the conical through groove when the liquid level reaches a certain level, and is pressed tightly by the differential pressure between the upper and lower parts, thus preventing further exhaust.

[0010] In a preferred embodiment of the present invention, the mechanical drive assembly includes a first cylinder and a second cylinder disposed on the side surface of the overflow tank. The diameter of the second cylinder is smaller than that of the first cylinder. A locking seat is slidably disposed inside the second cylinder, and a locking mechanism is provided inside the locking seat to restrict the locking seat from retracting into the second cylinder. A piston is disposed inside the first cylinder, and a pre-compressed elastic element is disposed between the piston and the locking seat. The piston is used to slide towards the locking seat according to the pressure inside the overflow tank to unlock the locking mechanism. This embodiment specifically sets the principle of the mechanical drive assembly. The pre-compressed elastic element prevents accidental activation. Only when the pressure inside the overflow tank reaches a certain level can the piston be driven to move towards the locking seat. After moving to a certain stroke, the locking mechanism is unlocked, so that the locking seat is no longer locked and can move significantly under pressure, quickly driving the mechanical control unit to close the valve body.

[0011] In a preferred embodiment of the present invention, the locking mechanism includes a rotating rod rotatably disposed within a locking seat. A locking element, extending through the outside of the locking seat, is hinged around the rotating rod and used to engage with the inlet of the second cylinder to prevent the locking seat from retracting into the second cylinder. A sliding rod is provided at one end of the piston near the locking seat. One end of the sliding rod is movably sleeved outside the rotating rod, and a guide strip is provided on the surface of the rotating rod to drive the rotating rod to rotate and retract the locking element during the sliding process. This embodiment, by setting a specific locking mechanism, allows the piston to unlock when sliding relative to the locking seat.

[0012] In a preferred embodiment of the present invention, the mechanical control unit includes a gear for driving the valve body to close, and a limit sleeve is also provided on the valve body. A toothed rod for meshing with the gear is slidably disposed in the limit sleeve. The toothed rod is connected to a locking seat. This embodiment specifically sets the structure of the mechanical control unit so that the locking seat drives the toothed rod to slide linearly, thereby driving the gear to rotate.

[0013] The beneficial effects of the present invention are as follows: The present invention sets up a linkage early warning system, which issues an early warning when the liquid level in the storage tank reaches a certain level, and also has an ambient temperature early warning. When the ambient temperature reaches a certain level, the firewall is activated and the valve body is closed at the same time, so as to provide double protection and greatly reduce the probability of safety accidents. This invention, by setting up a dual-control valve and further setting up an electrical control unit and a mechanical control unit, can forcibly close the valve body when the external temperature is extremely out of control, causing the firewall's protection capability to be insufficient, and when the electrical control unit is out of control, to prevent the storage tank from overflowing uncontrollably and increasing the fire. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the storage tank or auxiliary structure of the present invention; Figure 3 For the present invention Figure 2 Front sectional view; Figure 4 For the present invention Figure 1 Enlarged view of the structure of section A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of the structure of section B; Figure 6 For the present invention Figure 5 Enlarged view of the structure of section C; Figure 7 For the present invention Figure 5 Enlarged view of the structure of section D in the middle; Figure 8 For the present invention Figure 7 C-C view; In the diagram: 1. First level gauge; 2. Dual-control valve; 21. Valve body; 22. Electrical control unit; 23. Gear; 24. Limit sleeve; 25. Gear rack; 3. Overflow assembly; 31. Overflow box; 32. Overflow pipe; 33. Second level gauge; 34. Conical groove; 35. Sliding seat; 36. Conical sealing head; 37. Air flotation; 38. Discharge pipe; 39. Exhaust device; 4. Mechanical drive assembly; 41. First cylinder; 42. Second cylinder; 43. Piston; 44. Elastic element; 45. Slide rod; 46. Locking seat; 47. Rotating rod; 48. Locking element; 49. Guide bar; 5. Firewall; 6. Ambient temperature sensor; 7. Audible and visual alarm; 8. Storage tank; 81. Oil inlet pipe; 82. Oil outlet pipe. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example 1

[0016] like Figure 1-8 As shown, a tank storage oil overflow prevention linkage monitoring and early warning system includes a first level gauge 1 for monitoring the liquid level in the storage tank 8. The system is characterized by including an ambient temperature sensor 6 installed within a preset range around the storage tank 8 and a firewall 5 installed around the storage tank 8. The firewall 5 is activated to provide fire protection and heat insulation when the ambient temperature exceeds a threshold. The early warning system also includes a dual control valve 2 and an overflow component 3. The dual-control valve 2 is used to control the opening and closing of the oil inlet pipe 81 of the storage tank 8. It includes a valve body 21, an electrical control unit 22 and a mechanical control unit. The electrical control unit 22 is used to shut off the oil inlet pipe 81 when the liquid level in the storage tank 8 reaches the threshold or the ambient temperature exceeds the threshold. The overflow assembly 3 is used to collect overflow oil and includes an overflow tank 31. A mechanical drive assembly 4 is provided on the overflow tank 31 to drive the mechanical control unit to close the valve body 21 by pressure when the liquid level in the overflow tank 31 reaches a preset height.

[0017] This embodiment features a linked early warning system that issues an alert when the liquid level in storage tank 8 reaches a certain level. It also includes an ambient temperature warning system. When the ambient temperature reaches a certain level, the firewall 5 is activated, and valve 21 is simultaneously closed, providing double protection and significantly reducing the probability of accidents. Furthermore, by installing a dual-control valve 2, along with an electrical control unit 22 and a mechanical control unit, valve 21 can be forcibly closed when extreme external temperatures cause insufficient protection from the firewall 5, preventing uncontrolled overflow from storage tank 8 and thus preventing the fire from escalating.

[0018] Specifically, in the implementation process, taking the production of aluminum silver paste as an example, a ball mill (which easily generates high temperatures) is required, as well as oil as a solvent. In the workshop, if the electrical control unit 22 malfunctions (for example, the motor burns out), a primary warning is issued through the first level gauge 1. After the primary warning, the oil in the upstream storage device of the oil inlet pipe 81 may continue to enter the storage tank 8 due to gravitational potential energy. The oil then enters the overflow box 31, and when it accumulates to a certain level in the overflow box 31, it drives the mechanical drive component 4 to operate through pressure, causing the mechanical control unit to close the valve body 21, thus forcibly closing it in the event of the electrical control unit 22 malfunctioning. In addition, when the ambient temperature is out of control, even if the oil has not reached the warning level, a linkage response is required because the risk of high temperature already exists. The firewall 5 drops to isolate the storage tank 8, and the dual control valve 2 is also closed.

[0019] Preferably, the inlet of the valve body 21 is used to connect to the oil pipeline, and the outlet is provided with an oil inlet pipe 81 that connects to the upper end of the storage tank 8. The bottom of the storage tank 8 is also provided with an oil outlet pipe 82 with a valve. This solution is the conventional structure of the storage tank 8. Oil is introduced through the oil pipeline and discharged through the oil outlet pipe 82. For convenient control, a valve is provided on the oil outlet pipe 82.

[0020] Preferably, the early warning system also includes a controller and an audible and visual alarm 7. A second level gauge 33 is installed in the overflow tank 31. When the first level gauge 1 and the second level gauge 33 reach the threshold, the controller controls the audible and visual alarm 7 to emit different alarm sounds. This solution provides multi-level early warning by setting two level gauges and the audible and visual alarm 7. When the liquid level in the storage tank 8 reaches the warning height, an alarm is issued. When the liquid level in the overflow tank 31 reaches the threshold, a higher level of early warning is issued. Different alarm sounds are used to warn of different levels of warning. When the liquid level in the storage tank 8 is in warning, the electronic control unit 22 of the dual control valve 2 executes the valve body 21 to close. If the electronic control unit 22 fails to execute due to other reasons (such as motor failure caused by high temperature), oil enters the overflow tank 31, and the liquid level in the overflow tank 31 is issued as a secondary warning. A discharge pipe 38 is also required at the bottom of the overflow tank 31 to discharge oil when the overflow tank 31 continues to be used. A valve is also installed on the discharge pipe 38.

[0021] Preferably, the valve body 21 has an overflow pipe 32 connected to the overflow tank 31 on its side surface near the top. The overflow tank 31 is equipped with an exhaust device 39. The overflow tank 31 is also equipped with a sealing mechanism for closing the exhaust device 39 when the liquid level in the overflow tank 31 reaches a threshold, so as to increase the pressure in the overflow tank 31. In this solution, by setting a sealing mechanism, the exhaust will stop when the liquid level in the overflow tank 31 reaches a certain level. Then the pressure in the overflow pipe 32 will act on the overflow tank 31. The pressure is positively correlated with the liquid level. The liquid level in the overflow pipe 32 itself provides higher pressure. Higher pressure can increase the reliability of the mechanical drive component operation. The exhaust device 39 can be a direct discharge channel or a special gas treatment device set according to the characteristics of the oil.

[0022] Preferably, the sealing mechanism includes a sliding seat 35 disposed on the side wall of the overflow tank 31, a slider sliding along the sliding seat 35, a conical sealing head 36 disposed on the upper part of the slider, and an air flotation 37 disposed on the bottom. A conical through groove 34 communicating with the exhaust device 39 is disposed on the top of the overflow tank 31. The conical sealing head 36 is used to close the conical through groove 34 when the liquid level in the overflow tank 31 reaches a threshold. This solution further provides a specific structure for the sealing mechanism, which, through the air flotation 37, causes the conical sealing head 36 to press against the conical through groove 34 when the liquid level reaches a certain level, and is pressed tightly by the upper and lower differential pressure, so that no more exhaust is released.

[0023] Preferably, the mechanical drive assembly 4 includes a first cylinder 41 and a second cylinder 42 disposed on the side surface of the overflow tank 31. The diameter of the second cylinder 42 is smaller than that of the first cylinder 41. A locking seat 46 is slidably disposed inside the second cylinder 42, and a locking mechanism is provided inside the locking seat 46 to restrict the locking seat 46 from retracting into the second cylinder 42. A piston 43 is disposed inside the first cylinder 41, and a pre-compressed elastic element 44 is disposed between the piston 43 and the locking seat 46. The piston 43 is used to slide towards the locking seat 46 according to the pressure inside the overflow tank 31 to unlock the locking mechanism. This solution specifically sets the principle of the mechanical drive assembly 4. The pre-compressed elastic element 44 prevents accidental contact. Only when the pressure inside the overflow tank 31 reaches a certain level can the piston 43 be driven to move towards the locking seat 46. After moving to a certain stroke, the locking mechanism is unlocked, so that the locking seat 46 is no longer locked and can move significantly under pressure, quickly driving the mechanical control unit to close the valve body 21.

[0024] Preferably, the locking mechanism includes a rotating rod 47 rotatably disposed within the locking seat 46. A locking element 48 is hinged around the rotating rod 47 and extends through the outside of the locking seat 46. The locking element 48 is used to lock the second cylinder 42 inlet to prevent the locking seat 46 from retracting into the second cylinder 42. A sliding rod 45 is provided at one end of the piston 43 near the locking seat 46. One end of the sliding rod 45 is movably sleeved outside the rotating rod 47, and a guide strip 49 is provided on the surface of the rotating rod 47 to drive the rotating rod 47 to rotate and retract the locking element 48 during the sliding process of the sliding rod 45. This solution unlocks the piston 43 when it slides relative to the locking seat 46 by setting a specific locking mechanism.

[0025] Optionally, the mechanical control unit includes a gear 23 for driving the valve body 21 to close. The valve body 21 is also provided with a limit sleeve 24. A rack 25 for meshing with the gear 23 is slidably arranged in the limit sleeve 24. The rack 25 is connected to the locking seat 46. This solution specifically sets the structure of the mechanical control unit. The rack 25 is driven to slide linearly through the locking seat 46, thereby driving the gear 23 to rotate.

[0026] Working principle: During the production process, a primary warning is first issued by the first level gauge 1. When the oil level in the storage tank 8 rises to the warning height, the valve body 21 is closed by the electronic control unit 22. If the electronic control unit 22 malfunctions, the oil enters the overflow tank 31 through the overflow pipe 32. When the oil level in the overflow tank 31 reaches a certain level, a secondary warning is issued by the second level gauge 33. The liquid level continues to rise until the air flotation 37 rises. After the conical sealing head 36 blocks the conical through groove 34, the pressure generated by the liquid level in the overflow tank 31 acts on the piston 43. When the pressure difference on both sides of the piston 43 is sufficient to overcome the elastic element 44, the piston 43 moves towards the locking seat 46, causing the slide rod 45 to drive the rotating rod 4. 7. Rotate to retract the locking element 48, and then the locking seat 46 quickly retracts into the second cylinder 42 under the pressure of the piston 43. The locking seat 46 drives the rack 25 to slide, and the gear 34 rotates to close the valve body 21. The valve body 21 is a shut-off valve, which is closed by rotating the threaded shaft to drive the valve block to descend. The rotation of the threaded shaft is directly driven by the electronic control unit 22. When the electronic control unit 22 fails, the rack 25 meshes with the gear 23 to drive the threaded shaft to rotate. When the electronic control power supply 22 is running normally, the rack 25 and the gear 23 are not meshed to prevent the rotation of the gear 23 from acting on the rack 25. After the valve body 21 is mechanically closed, the overflow box 31 is emptied, and the mechanical drive component 4 is manually reset.

[0027] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A tank-based oil storage anti-overflow linkage monitoring and early warning system, comprising a first level gauge (1) for monitoring the liquid level inside the storage tank (8), characterized in that, The system includes an ambient temperature sensor (6) installed within a preset range around the storage tank (8) and a firewall (5) installed around the storage tank (8). The firewall (5) is activated to provide fire protection and heat insulation when the ambient temperature exceeds a threshold. The early warning system also includes a dual control valve (2) and an overflow assembly (3). The dual control valve (2) is used to control the opening and closing of the oil inlet pipe (81) of the storage tank (8), including valve body (21), electrical control unit (22) and mechanical control unit. The electrical control unit (22) is used to shut off the oil inlet pipe (81) when the liquid level in the storage tank (8) reaches the threshold or the ambient temperature exceeds the threshold. The overflow assembly (3) is used to collect overflow oil and includes an overflow tank (31). The overflow tank (31) is provided with a mechanical drive assembly (4) for closing the valve body (21) by pressure drive of the mechanical control unit when the liquid level in the overflow tank (31) reaches a preset height.

2. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 1, characterized in that, The valve body (21) has an inlet for connecting to an oil pipeline and an outlet for connecting to the upper end of the storage tank (8). The bottom of the storage tank (8) is also provided with an outlet pipe (82) with a valve.

3. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 1, characterized in that, The early warning system also includes a controller and an audible and visual alarm (7). The overflow tank (31) is equipped with a second level gauge (33). When the first level gauge (1) and the second level gauge (33) reach the threshold, the controller controls the audible and visual alarm (7) to emit different alarm sounds.

4. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 1, characterized in that, The valve body (21) has an overflow pipe (32) connected to the overflow tank (31) on its side surface near the top. The overflow tank (31) is provided with an exhaust device (39). The overflow tank (31) is also provided with a closing mechanism for closing the exhaust device (39) when the liquid level in the overflow tank (31) reaches a threshold, so as to increase the pressure in the overflow tank (31).

5. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 4, characterized in that, The closing mechanism includes a sliding seat (35) disposed on the side wall of the overflow tank (31) and a slider that slides along the sliding seat (35). The upper part of the slider is provided with a conical sealing head (36) and the bottom is provided with an air flotation device (37). The top of the overflow tank (31) is provided with a conical through groove (34) that connects to the exhaust device (39). The conical sealing head (36) is used to close the conical through groove (34) when the liquid level in the overflow tank (31) reaches a threshold.

6. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 1, characterized in that, The mechanical drive assembly (4) includes a first cylinder (41) and a second cylinder (42) disposed on the side surface of the overflow tank (31). The diameter of the second cylinder (42) is smaller than that of the first cylinder (41). A locking seat (46) is slidably disposed inside the second cylinder (42), and a locking mechanism is provided inside the locking seat (46) to restrict the locking seat (46) from retracting into the second cylinder (42). A piston (43) is disposed inside the first cylinder (41), and a pre-compressed elastic element (44) is disposed between the piston (43) and the locking seat (46). The piston (43) is used to slide towards the locking seat (46) according to the pressure inside the overflow tank (31) to unlock the locking mechanism.

7. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 6, characterized in that, The locking mechanism includes a rotating rod (47) rotatably disposed in a locking seat (46). A locking element (48) is hinged around the rotating rod (47) and extends through to the outside of the locking seat (46). The locking element (48) is used to lock the second cylinder (42) inlet to prevent the locking seat (46) from retracting into the second cylinder (42). A sliding rod (45) is provided at one end of the piston (43) near the locking seat (46). One end of the sliding rod (45) is movably sleeved outside the rotating rod (47), and a guide strip (49) is provided on the surface of the rotating rod (47) to drive the rotating rod (47) to rotate during the sliding of the sliding rod (45) so as to retract the locking element (48).

8. The tank storage oil overflow prevention linkage monitoring and early warning system according to claim 7, characterized in that, The mechanical control unit includes a gear (23) for driving the valve body (21) to close. A limit sleeve (24) is also provided on the valve body (21). A rack (25) for meshing with the gear (23) is slidably provided in the limit sleeve (24). The rack (25) is connected to the locking seat (46).

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