Intelligent floating roof tank

Abstract

The present invention belongs to the field of oil storage tanks, and in particular relates to an intelligent floating roof tank for kerosene, gasoline and solvent oil, wherein a longitudinally movable oil injection assembly and a soft sealing assembly are arranged in the tank body (25); the longitudinally movable oil injection assembly comprises a hollow floating plate (24), a nozzle (20) and a telescopic support rod (11); the nozzle (20) is fixedly arranged at the lower part of the hollow floating plate (24), and its upper port is communicated with the cavity of the hollow floating plate (24); an oil delivery pump (4) is arranged outside the tank body (25); the soft sealing assembly comprises a circular rubber airbag (22); the bottom of the circular rubber airbag (22) is fixedly connected to the upper part of the hollow floating plate (24); the circular rubber airbag (22) is slidably sealed to the inner wall of the tank body (25); and an air pump (3) with a driving valve (31) arranged at the air outlet is arranged outside the tank body (25); the present invention has good safety, high oil injection efficiency and ideal sealing effect, and can ensure the quality of stored oil.

Description

Technical Field

[0001] The invention belongs to the field of oil storage tanks, and in particular relates to an intelligent floating roof tank used for kerosene, gasoline and solvent oil. Background Art

[0002] Oil tanks are the main storage equipment for liquid hydrocarbons in the oil refining and petrochemical industries, and are mainly used to store liquid oils. Oil tanks are divided into vertical oil tanks and horizontal oil tanks according to their structural appearance. Vertical oil tanks are more commonly used in the petrochemical industry, and can be divided into truss oil tanks, moment-free oil tanks, dome oil tanks, floating roof oil tanks, etc.

[0003] The top of a floating roof tank is not fixed, but can float up and down with the oil level. A floating roof tank is composed of a floating roof floating on the surface of the liquid oil and a vertical cylindrical tank wall. The floating roof rises and falls with the increase or decrease of the liquid oil storage in the tank. There is an annular sealing device between the outer edge of the floating roof and the tank wall. The liquid oil in the tank is always directly covered by the floating roof in the tank, reducing the volatilization of the liquid oil.

[0004] Floating roofs are generally divided into single-disc floating roofs, double-disc floating roofs and float floating roofs. At present, existing floating roof oil tanks generally have problems such as poor safety, low oil filling efficiency, unsatisfactory sealing effect, and low degree of automation. Summary of the invention

[0005] The present invention aims to overcome the deficiencies of the prior art and provide an intelligent floating roof tank with good safety, high oil filling efficiency, ideal sealing effect and guaranteed oil storage quality.

[0006] To solve the above technical problems, the present invention is achieved as follows:

[0007] An intelligent floating roof tank comprises a tank body; a longitudinally movable oil injection assembly and a soft sealing assembly are arranged in the tank body;

[0008] The longitudinally movable oil injection assembly comprises a hollow floating plate, a nozzle, and a telescopic support rod; the middle area of ​​the hollow floating plate is vertically fixedly connected to the upper part of the telescopic support rod; the bottom of the telescopic support rod is fixedly connected to the bottom of the tank body; the nozzle is fixedly arranged at the lower part of the hollow floating plate, and its upper port is communicated with the cavity of the hollow floating plate; an oil pump is arranged outside the tank body; the oil outlet of the oil pump is communicated with the oil inlet of the hollow floating plate;

[0009] The soft sealing component includes a circular rubber airbag; the bottom of the circular rubber airbag is fixedly connected to the upper part of the hollow floating plate; a gasket is fixedly provided on the bottom surface of the circular rubber airbag; the circular rubber airbag is slidingly sealed with the inner wall of the tank body; an air pump with a driving valve configured at the air outlet is provided outside the tank body; the air outlet of the air pump is communicated with the cavity of the circular rubber airbag.

[0010] Furthermore, the present invention is provided with a pressure sensor fixedly mounted on the circular rubber airbag; a pressure controller fixedly mounted on the hollow floating plate; a monitor is provided outside the tank body; the signal transmission ports of the pressure sensor, the monitor and the air pump driving valve are respectively connected to the signal transmission port of the pressure controller; the pressure controller is configured to control the pressure sensor to collect the internal pressure signal of the circular rubber airbag, and control the gas flow of the air pump outlet through the air pump driving valve according to the pressure signal, and at the same time control the monitor to read the dynamic data of the pressure signal.

[0011] Furthermore, the present invention is provided with a temperature sensor, a smoke sensor and an ignition controller fixedly on the circular rubber airbag; a hanging dry powder fire extinguisher is fixedly provided on the top of the tank body; a flow regulating valve is fixedly provided at the fire extinguishing agent nozzle of the hanging dry powder fire extinguisher; the signal transmission ports of the temperature sensor and the smoke sensor are respectively connected to the signal transmission port of the ignition controller; the ignition controller is configured to control the temperature sensor and the smoke sensor to collect the temperature and smoke signals of the upper area of ​​the circular rubber airbag in the tank body, and control the flow of the fire extinguishing agent at the fire extinguishing agent nozzle of the hanging dry powder fire extinguisher through the flow regulating valve according to the temperature and smoke signals.

[0012] Furthermore, the present invention is provided with a pressure detector, a pressure controller, a first window for clearing internal and external gas, and a second window for clearing internal and external gas, fixedly in the upper area of ​​the tank body; the first window for clearing internal and external gas and the second window for clearing internal and external gas are provided with a first window opening driver and a second window opening driver, respectively; the signal transmission ports of the pressure detector, the first window opening driver and the second window opening driver are respectively connected to the signal transmission port of the pressure controller; the pressure controller is configured to control the pressure detector to collect the environmental pressure signal of the upper area of ​​the circular rubber airbag in the tank body, and control the window openings of the first window for clearing internal and external gas and the second window for clearing internal and external gas respectively through the first window opening driver and the second window opening driver according to the environmental pressure signal.

[0013] Furthermore, the nozzle of the present invention may be a Laval nozzle.

[0014] Furthermore, the oil outlet of the oil pump of the present invention can be communicated with the oil inlet of the hollow floating plate through a hose or a telescopic segmented pipeline.

[0015] Furthermore, the present invention may provide a valve switch and an oil outlet groove at the oil outlet at the bottom of the tank body.

[0016] Furthermore, the present invention may have a breathing valve fixedly provided on the top of the tank body.

[0017] The present invention ensures the overall safety of the floating roof tank by fixing a temperature sensor, a smoke sensor and an ignition controller on the circular rubber airbag and fixing a suspended dry powder fire extinguisher on the top of the tank body; the internal pressure of the circular rubber airbag is detected by a pressure sensor, a change curve is formed on the monitor, and whether there is a leak and the air pump is automatically started by the rise and fall of the curve; when the pressure detector arranged in the upper area of ​​the tank body senses that the pressure in the tank has increased to a peak value, the first internal and external gas window and the second internal and external gas window will be triggered to balance the internal and external pressures; the circular rubber airbag is in close contact with the inner wall of the tank body, and the gasket plays a supporting role. This sliding soft sealing structure design greatly improves the sealing effect of the floating plate and the inner wall of the tank body; due to the soft sealing structure, even if the oil injection speed increases, the disturbance caused to the floating plate will not affect its sealing effect; the use of the Laval nozzle can significantly improve the oil injection efficiency, and even if the oil injection speed increases, the disturbance caused to the floating plate will not affect its sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the present invention is not limited to the following description.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a block diagram of the circuit principle of the automatic inflation part of the present invention;

[0021] Figure 3 This is a block diagram of the circuit principle of the automatic fire extinguishing part of the present invention;

[0022] Figure 4 This is a block diagram of the circuit principle of the automatic balancing part of the internal and external gas pressure of the present invention.

[0023] In the figure: 1. Monitor; 2. Electric wires; 3. Air pump; 4. Oil pump; 5. Retractable segmented pipeline; 6. Suspended dry powder fire extinguisher; 7. First window for clearing internal and external gas; 8. Second window for clearing internal and external gas; 9. Lead wire; 10. Pressure detector; 11. Retractable support rod; 12. Ignition controller; 13. Gasket; 14. Temperature sensor; 15. Conductive wire; 16. Fixing mechanism; 17. Fixed base; 18. Oil outlet tank; 19. Valve switch; 20. Nozzle; 21. Pressure sensor; 22. Round rubber airbag; 23. Gas hose; 24. Hollow floating plate; 25. Tank; 26. Pressure controller; 27. Smoke sensor; 28. Flow regulating valve; 29. ​​Pressure controller; 30. Breathing valve; 31. Driving valve. DETAILED DESCRIPTION

[0024] As shown in the figure, the intelligent floating roof tank includes a tank body 25; a longitudinally movable oil injection component and a soft sealing component are arranged in the tank body 25;

[0025] The longitudinally movable oil injection assembly includes a hollow floating plate 24, a nozzle 20, and a telescopic support rod 11; the middle area of ​​the hollow floating plate 24 is vertically fixedly connected to the upper part of the telescopic support rod 11; the bottom of the telescopic support rod 11 is fixedly connected to the bottom of the tank body 25; the nozzle 20 is fixedly arranged at the lower part of the hollow floating plate 24, and its upper end is communicated with the cavity of the hollow floating plate 24; an oil pump 4 is arranged outside the tank body 25; the oil outlet of the oil pump 4 is communicated with the oil inlet of the hollow floating plate 24; the oil pump 4 can be fixed to the tank body 25 to make the structure compact, and can also be arranged outside the tank area by extending the gas hose 23.

[0026] The soft seal assembly includes a circular rubber airbag 22; the bottom of the circular rubber airbag 22 is fixedly connected to the upper part of the hollow floating plate 24; a gasket 13 is fixedly provided on the bottom surface of the circular rubber airbag 22; in actual design, the gasket may not be used to restrict the soft seal. The circular rubber airbag 22 is slidably sealed with the inner wall of the tank body 25; an air pump 3 with a driving valve 31 at the air outlet is provided outside the tank body 25; the air outlet of the air pump 3 is communicated with the cavity of the circular rubber airbag 22.

[0027] The present invention has a pressure sensor 21 fixedly provided on the circular rubber airbag 22; a pressure controller 26 fixedly provided on the hollow floating plate 24; a monitor 1 provided outside the tank body 25; the monitor 1 can be fixed to the tank body 25 to make the structure compact, or can be arranged outside the tank area by extending the gas hose 23.

[0028] The signal transmission ports of the pressure sensor 21, the monitor 1 and the air pump 3 driving valve 31 are respectively connected to the signal transmission ports of the pressure controller 26; the pressure controller 26 is configured to control the pressure sensor 21 to collect the internal pressure signal of the circular rubber airbag 22, and control the gas flow at the air outlet of the air pump 3 through the air pump 3 driving valve according to the pressure signal, and at the same time control the monitor 1 to read the dynamic data of the pressure signal.

[0029] In the present invention, a temperature sensor 14, a smoke sensor 27 and an ignition controller 12 are fixedly provided on the circular rubber airbag 22; a hanging dry powder fire extinguisher 6 is fixedly provided on the top of the tank body 25; a flow regulating valve 28 is fixedly provided at the fire extinguishing agent nozzle of the hanging dry powder fire extinguisher 6; the signal transmission ports of the temperature sensor 14 and the smoke sensor 27 are respectively connected to the signal transmission ports of the ignition controller 12; the ignition controller 12 is configured to control the temperature sensor 14 and the smoke sensor 27 to collect the temperature and smoke signals of the upper area of ​​the circular rubber airbag 22 in the tank body 25, and control the flow of the fire extinguishing agent at the fire extinguishing agent nozzle of the hanging dry powder fire extinguisher 6 through the flow regulating valve 28 according to the temperature and smoke signals.

[0030] In the present invention, a pressure detector 10, a pressure controller 29, a first window 7 for clearing internal and external gases, and a second window 8 for clearing internal and external gases are fixedly installed in the upper area of ​​the tank body 25; the first window 7 for clearing internal and external gases and the second window 8 for clearing internal and external gases are respectively provided with a first window opening driver and a second window opening driver; the signal transmission ports of the pressure detector 10, the first window opening driver, and the second window opening driver are respectively connected to the signal transmission ports of the pressure controller 29; the pressure controller 29 is configured to control the pressure detector 10 to collect the environmental pressure signal of the upper area of ​​the circular rubber airbag 22 in the tank body 25, and control the window openings of the first window 7 for clearing internal and external gases and the second window 8 for clearing internal and external gases according to the environmental pressure signal through the first window opening driver and the second window opening driver.

[0031] The nozzle 20 of the present invention adopts a Laval nozzle. The front half of the Laval nozzle is narrowed from large to small and narrowed to a narrow throat in the middle. After the narrow throat, it expands outward from small to large. The liquid in the nozzle flows into the front half of the nozzle under high pressure, and escapes from the rear half after passing through the narrow throat. This structure can change the liquid flow rate due to the change of the spray cross-sectional area, so as to accelerate the liquid flow rate.

[0032] The oil outlet of the oil pump 4 of the present invention is connected to the oil inlet of the hollow floating plate 24 through a hose or a retractable segmented pipeline. The present invention is provided with a valve switch 19 and an oil outlet groove 18 at the oil outlet at the bottom of the tank body 25. The present invention is fixedly provided with a breathing valve on the top of the tank body 25. The function of the breathing valve 30 is to adjust the oil and gas pressure in the tank body 25. When the pressure in the tank body 25 is too high, part of the excess oil and gas is discharged through the breathing valve 30 to reduce the pressure in the tank body 25; when the pressure in the tank body 25 is too low, air is sucked from outside the tank body 25 through the breathing valve to increase the pressure in the tank body 25 and always keep a constant state with the atmospheric pressure. The breathing valve 30 is installed on the top of the oil tank. When the breathing valve 30 fails, the absolute safety of the tank body 25 can be ensured by the combined design of the pressure detector 10, the pressure controller 29, the first window 7 for clearing the internal and external gas, and the second window 8 for clearing the internal and external gas.

[0033] See also Figure 1As shown, during the specific operation, the oil pump 4 delivers oil to the hollow floating plate 24 in the tank body 25 through the telescopic segmented pipe 5, and then releases the oil into the tank body cavity through the nozzle 20. As the oil in the tank body increases, the oil level rises and pushes the hollow floating plate 24 to move upward. At the same time, the oil level pushes the hollow floating plate 24 to rise, and the telescopic support rod 11 is stretched, and the telescopic segmented pipe 5 can also be retracted. The circular rubber airbag 22 is tightly attached to the wall of the tank body to perform sliding soft sealing, and the gasket 13 plays a supporting role. Due to the soft sealing structure, even if the oil injection speed increases, the disturbance caused to the floating plate will not affect its sealing effect. The Laval nozzle can significantly improve the oil injection efficiency. Even if the oil injection speed increases, the disturbance caused to the floating plate will not affect its sealing effect. The monitor 1 is connected to the air pump 3 and the pressure sensor 21 by the wire 2. The pressure sensor 21 detects the internal pressure of the circular rubber airbag 22, and forms a change curve on the monitor 1. The rise and fall of the curve determine whether there is leakage and whether the air pump 3 is turned on. The air pump 3 and the oil pump 4 can be fixed to the tank 25 or arranged outside the tank 25 by extending the gas hose 23. In order to ensure safety, a suspended dry powder fire extinguisher 6 is set on the top of the tank 25. The temperature and smoke signal of the upper area of ​​the circular rubber airbag 22 in the tank 25 are detected by the temperature sensor 14 and the smoke sensor 27. Then, according to the temperature and smoke signal, the ignition controller 12 sends a control instruction to the flow regulating valve 28 to control the flow of the fire extinguishing agent at the fire extinguishing agent nozzle of the suspended dry powder fire extinguisher 6. The fixed base 17 is set mainly to prevent shaking. The grounding wire 15 is mainly to prevent static electricity. The telescopic support rod 11 is connected to the fixed base 17 and the fixing mechanism 16 to prevent the disturbance of the floating plate. By opening the valve 19, the oil can be taken out from the oil outlet tank 18. When the pressure detector 10 senses that the pressure of the tank 25 has risen to a peak value, it will trigger the first window opening driver and the second window opening driver, thereby controlling the window openings of the first internal and external gas window 7 and the second internal and external gas window 8 to balance the internal and external pressures. The first window opening driver and the second window opening driver can be respectively arranged at the exhaust vents of the first internal and external gas window 7 and the second internal and external gas window 8. A rotary damper can be arranged at the exhaust vents of the first internal and external gas window 7 and the second internal and external gas window 8; the first window opening driver and the second window opening driver respectively drive the rotary damper to rotate, and the opening size of the exhaust vent is controlled by changing the angle of the rotary damper. The outside of the lead is wrapped with a non-flammable plastic tube to prevent sparks from flying.

[0034] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Although 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 appended claims and their equivalents.

Claims

1. An intelligent floating roof tank, comprising a tank body (25); characterized in that: A longitudinally movable oil injection component and a soft sealing component are provided in the tank body (25); The longitudinally movable oil injection assembly comprises a hollow floating plate (24), a nozzle (20), and a telescopic support rod (11); the middle region of the hollow floating plate (24) is vertically fixedly connected to the upper portion of the telescopic support rod (11); the bottom of the telescopic support rod (11) is fixedly connected to the bottom of the tank body (25); the nozzle (20) is fixedly arranged at the lower portion of the hollow floating plate (24), and its upper end is communicated with the cavity of the hollow floating plate (24); an oil delivery pump (4) is arranged outside the tank body (25); the oil outlet of the oil delivery pump (4) is communicated with the oil inlet of the hollow floating plate (24); The soft sealing component comprises a circular rubber airbag (22); the bottom of the circular rubber airbag (22) is fixedly connected to the upper part of the hollow floating plate (24); a gasket (13) is fixedly provided on the bottom surface of the circular rubber airbag (22); the circular rubber airbag (22) is slidably sealed to the inner wall of the tank body (25); an air pump (3) with a driving valve (31) at the air outlet is provided outside the tank body (25); and the air outlet of the air pump (3) is communicated with the cavity of the circular rubber airbag (22).

2. According to claim 1, the intelligent floating roof tank is characterized in that: A pressure sensor (21) is fixedly provided on the circular rubber airbag (22); a pressure controller (26) is fixedly provided on the hollow floating plate (24); a monitor (1) is provided outside the tank body (25); the signal transmission ports of the pressure sensor (21), the monitor (1) and the air pump (3) driving valve (31) are respectively connected to the signal transmission port of the pressure controller (26); the pressure controller (26) is configured to control the pressure sensor (21) to collect the internal pressure signal of the circular rubber airbag (22), and control the gas flow at the air outlet of the air pump (3) through the air pump (3) driving valve according to the pressure signal, and at the same time control the monitor (1) to read the dynamic data of the pressure signal.

3. The intelligent floating roof tank according to claim 2 is characterized in that: A temperature sensor (14), a smoke sensor (27) and an ignition controller (12) are fixedly provided on the circular rubber airbag (22); a suspended dry powder fire extinguisher (6) is fixedly provided on the top of the tank body (25); a flow regulating valve (28) is fixedly provided at the fire extinguishing agent nozzle of the suspended dry powder fire extinguisher (6); signal transmission ports of the temperature sensor (14) and the smoke sensor (27) are respectively connected to the signal transmission port of the ignition controller (12); the ignition controller (12) is configured to control the temperature sensor (14) and the smoke sensor (27) to collect the temperature and smoke signals of the upper area of ​​the circular rubber airbag (22) in the tank body (25), and control the flow rate of the fire extinguishing agent at the fire extinguishing agent nozzle of the suspended dry powder fire extinguisher (6) through the flow regulating valve (28) according to the temperature and smoke signals.

4. The intelligent floating roof tank according to claim 3 is characterized in that: A pressure detector (10), a pressure controller (29), a first internal and external gas dredging window (7), and a second internal and external gas dredging window (8) are fixedly provided in the upper region of the tank body (25); a first window opening driver and a second window opening driver are provided on the first internal and external gas dredging window (7) and the second internal and external gas dredging window (8), respectively; the signal transmission ports of the pressure detector (10), the first window opening driver, and the second window opening driver are respectively connected to the signal transmission port of the pressure controller (29); the pressure controller (29) is configured to control the pressure detector (10) to collect an environmental pressure signal of the upper region of the circular rubber airbag (22) in the tank body (25), and to control the window openings of the first internal and external gas dredging window (7) and the second internal and external gas dredging window (8) respectively through the first window opening driver and the second window opening driver according to the environmental pressure signal.

5. The intelligent floating roof tank according to claim 4 is characterized in that: The nozzle (20) is a Laval nozzle (20).

6. The intelligent floating roof tank according to claim 5, characterized in that: The oil outlet of the oil delivery pump (4) is communicated with the oil inlet of the hollow floating plate (24) via a hose or a telescopic segmented pipeline.

7. The intelligent floating roof tank according to claim 6, characterized in that: A valve switch (19) and an oil outlet groove (18) are provided at the oil outlet at the bottom of the tank body (25).

8. The intelligent floating roof tank according to claim 7, characterized in that: A breathing valve (30) is fixedly provided on the top of the tank body (25).

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