A floating roof storage tank safety active protection monitoring device

Abstract

The application discloses a floating roof storage tank safety active protection monitoring device, which comprises a storage tank, a floating disc, a first sealing structure, a second sealing structure, a VOCs oil gas concentration optical fiber sensor and a pressure sensor. The floating disc is arranged in the storage tank. The first sealing structure is arranged on the lower side of the floating disc. The second sealing structure is arranged on the upper side of the floating disc. The oil gas space is formed between the first sealing structure and the second sealing structure. The VOCs oil gas concentration optical fiber sensor and the pressure sensor are arranged on the inner wall of the storage tank. The recess body is arranged on the outer wall of the storage tank. The controller is arranged in the recess body. The VOCs oil gas concentration optical fiber sensor and the pressure sensor are connected with the controller. The alarm is arranged on the outer wall of the recess body. The alarm is connected with the controller. The VOCs oil gas concentration optical fiber sensor and the pressure sensor can monitor the oil gas concentration and the pressure value in the oil gas space between the first sealing structure and the second sealing structure. When the value exceeds the warning value, the controller starts the alarm to remind the staff to take safety measures.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of petrochemical industry or liquid chemical storage, and specifically relates to a floating roof storage tank safety active protection monitoring device. BACKGROUND

[0002] The floating roof storage tank is a commonly used device for storing liquid substances, and is widely used in the petroleum, chemical, food and other industries. The liquid substances in the storage tank may leak, overflow, explode and other safety accidents during storage and transportation, which poses a serious threat to personnel and the environment. Therefore, developing a safety active protection monitoring device that can monitor the pressure, oil and gas concentration and other parameters in the storage tank in real time is of great significance to ensure the safe operation of the storage tank.

[0003] The patent with publication number CN115626390A discloses a floating roof storage tank safety active protection optical fiber monitoring system, which comprises a floating roof storage tank, an oil and gas concentration sensor, a demodulator, a nitrogen tank and a controller. The floating roof storage tank is provided with a first sealing structure and a second sealing structure, and the first sealing structure and the second sealing structure are in contact with the tank wall of the floating roof storage tank to form an oil and gas space. The nitrogen tank is provided with a spray head. The spray head and the oil and gas concentration sensor are arranged on the tank wall and located in the oil and gas space. The oil and gas concentration sensor is connected with the demodulator. The demodulator and the nitrogen control valve are electrically connected with the controller. The oil and gas concentration in the oil and gas space is monitored in real time by the oil and gas concentration sensor. When the oil and gas concentration is greater than the concentration value set by the demodulator, the data is transmitted to the controller by the demodulator, and the controller controls the nitrogen control valve to inject nitrogen into the oil and gas space through the spray head, thereby reducing the oil and gas concentration in the oil and gas space and forming an inert gas space in the oil and gas space to ensure safety.

[0004] However, the above-mentioned patent has the following shortcomings in actual use. The oil and gas in the oil and gas space is in a sealed space. As the oil and gas volatilizes, the pressure increases, causing the sealing structure to leak and causing safety accidents. SUMMARY

[0005] Therefore, the present application solves the problem of the oil and gas in the oil and gas space being in a sealed space, the pressure increasing as the oil and gas volatilizes, causing the sealing structure to leak and causing safety accidents.

[0006] To this end, the technical scheme adopted is that the application is a floating roof storage tank safety active protection monitoring device, comprising: a storage tank, a floating roof, a first sealing structure, a second sealing structure, a VOCs oil gas concentration optical fiber sensor and a pressure sensor, the floating roof is arranged in the storage tank, the first sealing structure is arranged on the lower side of the floating roof, the second sealing structure is arranged on the upper side of the floating roof, an oil gas space is formed between the first sealing structure and the second sealing structure, the VOCs oil gas concentration optical fiber sensor and the pressure sensor are arranged on the inner wall of the storage tank, a groove body is arranged on the outer wall of the storage tank, a controller is arranged in the groove body, the VOCs oil gas concentration optical fiber sensor and the pressure sensor are connected with the controller, an alarm is arranged on the outer wall of the groove body, and the alarm is connected with the controller.

[0007] Preferably, the floating roof is connected with the first sealing structure and the second sealing structure through bolts.

[0008] Preferably, a nitrogen gas nozzle is arranged on the inner wall of the storage tank.

[0009] Preferably, the cleaning device comprises a first motor, a rotating rod, a connecting rod, a support seat and a rocker, the first motor is arranged in the groove body and connected with the inner wall of the groove body, the output shaft of the first motor is connected with one end of the rotating rod perpendicularly, the other end of the rotating rod is rotationally connected with one end of the connecting rod, the support seat is arranged above the first motor and connected with the inner wall of the groove body, one end of the rocker is hingedly connected with the support seat, the other end of the connecting rod is hingedly connected with the rocker, the other end of the rocker is connected with the middle of the arc-shaped slide rail, the two ends of the arc-shaped slide rail are provided with inclined slide rails, a vertical slide rod is arranged in the groove body, the slide rod passes through a fixed block and is slidingly connected with the fixed block, the fixed block is connected with the inner wall of the groove body, the lower end of the slide rod is connected with a push rod, the push rod can slide in the arc-shaped slide rail and the inclined slide rail, an opening is arranged on the tank wall of the storage tank, the upper end of the slide rod is connected with one end of a connecting rod, the other end of the connecting rod passes through the opening and is connected with the middle of a vertical moving rod, cleaning brushes are arranged at the two ends of the moving rod respectively, the cleaning brushes are located between the VOCs oil gas concentration optical fiber sensor and the pressure sensor, a flexible sealing cloth is arranged on the opening, the connecting rod passes through and is connected with the flexible sealing cloth.

[0010] Preferably, a heat dissipation opening is arranged on the side wall of the groove body, and a filter screen is arranged on the heat dissipation opening.

[0011] Preferably, the heat dissipation device comprises a V-shaped sliding groove, a fixed plate, a sliding block, a rotating shaft and a heat dissipation fan, the V-shaped sliding groove is arranged on the inner wall of the groove body, two vertical fixed plates are arranged in the groove body at intervals, the two ends of the fixed plate are connected with the inner wall of the groove body, a sliding block is arranged between the two fixed plates, the sliding block is slidingly connected with the fixed plate, the rotating shaft penetrates through the sliding block and is rotationally connected with the sliding block, the rotating shaft is provided with the heat dissipation fan at one end, the other end of the rotating shaft is connected with one end of a crank, the other end of the crank is provided with a sliding column which can slide in the V-shaped sliding groove, the rotating shaft is coaxially provided with a first gear, a second motor is arranged on the sliding block, the output shaft of the second motor is coaxially connected with a second gear, and the first gear is engaged with the second gear.

[0012] The technical scheme has the following advantages:

[0013] 1. The safety active protection monitoring device for floating roof storage tank, comprising: a storage tank, a floating disc, a first sealing structure, a second sealing structure, a VOCs oil gas concentration optical fiber sensor and a pressure sensor, the floating disc is arranged in the storage tank, the lower side of the floating disc is provided with the first sealing structure, the upper side of the floating disc is provided with the second sealing structure, and the oil gas space is formed between the first sealing structure and the second sealing structure, the VOCs oil gas concentration optical fiber sensor and the pressure sensor are arranged on the inner wall of the storage tank, a groove body is arranged on the outer wall of the storage tank, a controller is arranged in the groove body, the VOCs oil gas concentration optical fiber sensor and the pressure sensor are connected with the controller, an alarm is arranged on the outer wall of the groove body, and the alarm is connected with the controller. The VOCs oil gas concentration optical fiber sensor and the pressure sensor can monitor the oil gas concentration and pressure value in the oil gas space between the first sealing structure and the second sealing structure, and when the value exceeds the warning value, the controller starts the alarm to remind the staff to take measures to prevent safety accidents.

[0014] 2. The cleaning device in the application can alternately clean the VOCs oil gas concentration optical fiber sensor and the pressure sensor, keep the sensor clean, and prevent the accuracy of the monitoring result from being affected. The two cleaning brushes are usually parked at the balance position between the oil gas concentration optical fiber sensor and the pressure sensor, reduce the influence on data monitoring, and ensure the cleaning of the sensor.

[0015] 3. The heat dissipation device in the application drives the heat dissipation fan to move up and down and rotate at the same time, scans and air-cools the electronic devices in the groove body, prevents the temperature from being too high and the electronic devices from being burnt, and affects the service life of the electronic devices and the monitoring of data.

[0016] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solutions of the present application are described in further detail below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, but do not limit the present application. In the drawings:

[0019] Figure 1 is a structural schematic diagram of the present application;

[0020] Figure 2 is a structural schematic diagram of the cleaning device in the present application;

[0021] Figure 3 is a structural schematic diagram of the heat dissipation device in the present application;

[0022] Figure 4 is a schematic diagram of the meshing of the first gear and the second gear in the present application;

[0023] wherein 1 is a storage tank, 2 is a floating disc, 3 is a first sealing structure, 4 is a second sealing structure, 5 is a VOCs oil and gas concentration optical fiber sensor, 6 is a pressure sensor, 7 is a groove body, 8 is a controller, 9 is an alarm, 10 is a nitrogen gas nozzle, 11 is a first motor, 12 is a rotating rod, 13 is a connecting rod, 14 is a support seat, 15 is a rocker, 16 is an arc-shaped sliding rail, 17 is an inclined sliding rail, 18 is a sliding rod, 19 is a fixed block, 20 is a shifting rod, 21 is an opening, 22 is a connecting rod, 23 is a moving rod, 24 is a cleaning brush, 25 is a flexible sealing cloth, 26 is a heat dissipation opening, 27 is a filter screen, 28 is a V-shaped sliding groove, 29 is a fixed plate, 30 is a sliding block, 31 is a rotating shaft, 32 is a heat dissipation fan, 33 is a crank, 34 is a sliding column, 35 is a first gear, 36 is a second motor, and 37 is a second gear. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0025] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] This invention provides a safety active protection monitoring device for floating roof tanks, such as... Figure 1 As shown, the system includes: a storage tank 1, a floating roof 2, a first sealing structure 3, a second sealing structure 4, a VOCs oil and gas concentration fiber optic sensor 5, and a pressure sensor 6. The floating roof 2 is installed inside the storage tank 1. The first sealing structure 3 is installed on the lower side of the floating roof 2, and the second sealing structure 4 is installed on the upper side of the floating roof 2. An oil and gas space is formed between the first sealing structure 3 and the second sealing structure 4. The VOCs oil and gas concentration fiber optic sensor 5 and the pressure sensor 6 are installed on the inner wall of the storage tank 1. A groove 7 is installed on the outer wall of the storage tank 1. A controller 8 is installed inside the groove 7. The VOCs oil and gas concentration fiber optic sensor 5 and the pressure sensor 6 are both connected to the controller 8. An alarm 9 is installed on the outer wall of the groove 7 and is connected to the controller 8.

[0029] The working principle and beneficial technical effects of the above technical solution are as follows: The VOCs oil and gas concentration fiber optic sensor 5 and the pressure sensor 6 can monitor the oil and gas concentration and pressure value in the oil and gas space between the first sealing structure 3 and the second sealing structure 4. When the warning value is exceeded, the controller 8 will activate the alarm 9 to remind the staff to take measures to prevent safety accidents.

[0030] In one embodiment, the floating roof 2 is connected to the first sealing structure 3 and the second sealing structure 4 by bolts, which facilitates the installation and disassembly of the first sealing structure 3 and the second sealing structure 4.

[0031] In one embodiment, the nitrogen gas nozzle 10 is arranged on the inner wall of the storage tank 1, the nitrogen gas nozzle 10 is in communication with the nitrogen gas storage tank through a pipeline, an electromagnetic valve is arranged on the pipeline, the electromagnetic valve is connected with the control, when the VOCs oil gas concentration fiber sensor 5 monitors that the oil gas concentration is high, the controller starts the electromagnetic valve, nitrogen gas is injected into the oil gas space through the nitrogen gas nozzle 10, thereby reducing the oil gas concentration in the oil gas space, and further forming an inert gas space for the oil gas space to ensure safety.

[0032] In one embodiment, as shown in Figure 2 The cleaning device includes a first motor 11, a rotating rod 12, a connecting rod 13, a support seat 14, and a rocker 15. The first motor 11 is arranged in the groove body 7 and connected with the inner wall of the groove body 7. The output shaft of the first motor 11 is connected with one end of the rotating rod 12 perpendicularly. The other end of the rotating rod 12 is rotationally connected with one end of the connecting rod 13. The support seat 14 is arranged above the first motor 11 and connected with the inner wall of the groove body 7. One end of the rocker 15 is hingedly connected with the support seat 14, and the other end of the connecting rod 13 is hingedly connected with the rocker 15. The other end of the rocker 15 is connected with the middle of the arc-shaped slide rail 16. The arc-shaped slide rail 16 is provided with inclined slide rails 17 at both ends. The groove body 7 is provided with a vertical slide rod 18. The slide rod 18 passes through a fixed block 19 and is slidably connected with the fixed block 19. The fixed block 19 is connected with the inner wall of the groove body 7. The lower end of the slide rod 18 is connected with a push rod 20. The push rod 20 can slide in the arc-shaped slide rail 16 and the inclined slide rail 17. The tank wall of the storage tank 1 is provided with an opening 21. The upper end of the slide rod 18 is connected with one end of a connecting rod 22. The other end of the connecting rod 22 passes through the opening 21 and is connected with the middle of a vertical moving rod 23. The moving rod 23 is provided with cleaning brushes 24 at both ends. The cleaning brushes 24 are located between the VOCs oil gas concentration fiber sensor 5 and the pressure sensor 6. A flexible sealing cloth 25 is arranged on the opening 21. The connecting rod 22 passes through the flexible sealing cloth 25 and is connected with the flexible sealing cloth 25.

[0033] The working principle and beneficial technical effects of the above technical solution are as follows: the first motor 11 is started to drive the rotating rod 12 to rotate, the rotating rod 12 drives the connecting rod 13 to move, the connecting rod 13 drives the rocker 15 to reciprocate up and down, the rocker 15 drives the push rod 20 to slide in the arc-shaped slide rail 16 and the inclined slide rail 17, when the push rod 20 slides in the arc-shaped slide rail 16, the push rod 20 is stationary, when the push rod 20 slides in the inclined slide rail 17, the push rod 20 reciprocates up and down once, so that the push rod 20 drives the upper cleaning brush 24 to reciprocate up and down once, the VOCs oil and gas concentration optical fiber sensor 5 is cleaned once, then the lower cleaning brush 24 reciprocates up and down once again after a period of rest, the pressure sensor 6 is cleaned once, and then the VOCs oil and gas concentration optical fiber sensor is cleaned, so that the VOCs oil and gas concentration optical fiber sensor 5 and the pressure sensor 6 are alternately cleaned, the sensors are kept clean, and the accuracy of the monitoring result is prevented from being affected. The two cleaning brushes 24 are mostly stationary at the balance position between the oil and gas concentration optical fiber sensor 5 and the pressure sensor 6, the influence on data monitoring is reduced, and the cleanliness of the sensors is ensured.

[0034] In one embodiment, as shown in Figure 3 The side wall of the groove body 7 is provided with a heat dissipation opening 26, and the heat dissipation opening 26 is provided with a filter screen 27 to reduce dust entering the groove body 7.

[0035] In one embodiment, as shown in Figures 3-4 The heat dissipation device includes a V-shaped sliding groove 28, a fixed plate 29, a sliding block 30, a rotating shaft 31, and a heat dissipation fan 32. The V-shaped sliding groove 28 is arranged on the inner wall of the groove body 7, two vertical fixed plates 29 are arranged in the groove body 7 at intervals, the two ends of the fixed plate 29 are connected with the inner wall of the groove body 7, the sliding block 30 is arranged between the two fixed plates 29 and is in sliding connection with the fixed plate 29, the rotating shaft 31 penetrates through the sliding block 30 and is in rotational connection with the sliding block 30, the heat dissipation fan 32 is arranged at one end of the rotating shaft 31, the other end of the rotating shaft 31 is connected with one end of a crank 33, the other end of the crank 33 is provided with a sliding column 34 which can slide in the V-shaped sliding groove 28, the rotating shaft 31 is coaxially provided with a first gear 35, a second motor 36 is arranged on the sliding block 30, the output shaft of the second motor 36 is coaxially connected with a second gear 37, and the first gear 35 is in meshing connection with the second gear 37.

[0036] The working principle and beneficial technical effects of the above technical solution are as follows: the second motor 36 is started to drive the second gear 37 to rotate, the first gear 35 is engaged with the second gear 37 to drive the rotating shaft 31 to rotate, the rotating shaft 31 drives the crank 33 to rotate, the crank 33 drives the slide column 34 to slide in the V-shaped slide groove 28, the slide block 30 is reciprocated along the direction of the fixed plate 29, the cooling fan 32 is reciprocated up and down and rotates constantly, the electronic device in the groove body 7 is scanned and air-cooled, the temperature is prevented from being too high, the electronic device is prevented from being burnt, and the service life of the electronic device and the monitoring of data are affected.

[0037] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A floating roof storage tank safety active protection monitoring device, characterized in that, The utility model relates to a kind of VOCs oil-gas concentration optical fiber sensor and pressure sensor for storage tank, including: Tank (1), float (2), first sealing structure (3), second sealing structure (4), VOCs oil-gas concentration optical fiber sensor (5) and pressure sensor (6), float (2) is provided with first sealing structure (3) in tank (1), the upper side of float (2) is provided with second sealing structure (4), and oil-gas space is formed between first sealing structure (3) and second sealing structure (4), VOCs oil-gas concentration optical fiber sensor (5) and pressure sensor (6) are provided on the inner wall of tank (1), recess body (7) is provided on the outer wall of tank (1), controller (8) is provided in recess body (7), VOCs oil-gas concentration optical fiber sensor (5) and pressure sensor (6) are connected with controller (8), alarm (9) is provided on the outer wall of recess body (7), and alarm (9) is connected with controller (8); Including cleaning device, the cleaning device includes: first motor (11), rotating rod (12), connecting rod (13), support seat (14) and rocker (15), recess body (7) is provided with first motor (11), and first motor (11) is connected with the inner wall of recess body (7), the output shaft of first motor (11) is vertically connected with one end of rotating rod (12), and the other end of rotating rod (12) is rotationally connected with one end of connecting rod (13), and the upper side of first motor (11) is provided with support seat (14), and support seat (14) is connected with the inner wall of recess body (7), and one end of rocker (15) is hinged with support seat (14), and the other end of connecting rod (13) is hinged with rocker (15), and the other end of rocker (15) is connected with the middle of arc slide rail (16), and the both ends of arc slide rail (16) are provided with inclined slide rail (17), and vertical direction slide rod (18) is provided in recess body (7), and slide rod (18) passes through fixed block (19) and is slidably connected with fixed block (19), and fixed block (19) is connected with the inner wall of recess body (7), and the lower end of slide rod (18) is connected with push rod (20), and push rod (20) can slide in arc slide rail (16), inclined slide rail (17), the tank wall of tank (1) is provided with opening (21), the upper end of slide rod (18) is connected with one end of connecting rod (22), the other end of connecting rod (22) passes through opening (21) and is connected with the middle of vertical direction moving rod (23), and the both ends of moving rod (23) are respectively provided with cleaning brush (24) connection, and cleaning brush (24) is located between VOCs oil-gas concentration optical fiber sensor (5) and pressure sensor (6), and flexible sealing cloth (25) is provided on opening (21), and connecting rod (22) passes through flexible sealing cloth (25) and is connected with flexible sealing cloth (25).

2. The floating roof storage tank safety active protection monitoring device according to claim 1, characterized in that, Float (2) is connected by bolt with first sealing structure (3), second sealing structure (4).

3. The floating roof storage tank safety active protection monitoring device according to claim 1, characterized in that, Nitrogen spray head (10) is provided on the inner wall of tank (1).

4. The floating roof storage tank safety active protection monitoring device according to claim 1, characterized in that, Recess body (7) side wall is provided with heat dissipation opening (26), and filter screen (27) is provided on heat dissipation opening (26).

5. The floating roof storage tank safety active protection monitoring device according to claim 1, characterized in that, The heat dissipation device comprises a V-shaped sliding groove (28), a fixed plate (29), a sliding block (30), a rotating shaft (31) and a heat dissipation fan (32), the V-shaped sliding groove (28) is arranged on the inner wall of the recess body (7), two vertical fixed plates (29) are arranged in the recess body (7) at intervals, the two ends of the fixed plate (29) are connected with the inner wall of the recess body (7), a sliding block (30) is arranged between the two fixed plates (29), the sliding block (30) is connected with the fixed plate (29) in a sliding mode, the rotating shaft (31) penetrates through the sliding block (30) and is connected with the sliding block (30) in a rotating mode, the rotating shaft (31) is provided with the heat dissipation fan (32) at one end, the other end of the rotating shaft (31) is connected with one end of a crank (33), the other end of the crank (33) is provided with a sliding column (34), the sliding column (34) can slide in the V-shaped sliding groove (28), the rotating shaft (31) is coaxially provided with a first gear (35), a second motor (36) is arranged on the sliding block (30), the output shaft of the second motor (36) is connected with a second gear (37) in a coaxial mode, and the first gear (35) is meshed with the second gear (37).

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