Safety device for crude oil storage tank

Abstract

The utility model relates to the technical field of crude oil storage tanks, and discloses a safety device for a crude oil storage tank, which comprises a tank body and a balance monitoring assembly, an outer floating roof matched with the tank body is arranged in the tank body, the outer floating roof comprises a floating roof cover and a floating roof groove body, the balance monitoring assembly comprises a disc, four monitoring rods and four fixing blocks, and the disc is provided with a plurality of through holes. Four inserting shafts are fixedly connected to the outer wall of the disc at equal intervals, and inserting holes matched with the inserting shafts are formed in one end of the monitoring rod. According to the balance monitoring assembly, the insertion shaft is inserted into the insertion hole, force towards the interior of the sliding groove is applied to the clamping block, then the installation block is placed in the installation groove, the spring drives the clamping block to reset, one end of the clamping block penetrates through the clamping hole, the balance monitoring assembly can be installed on the outer floating roof, and the heights of all positions of the monitoring rod can be detected through the multiple height detectors; therefore, the balance degree of the outer floating roof is monitored, inspection by naked eyes is not needed, and the outer floating roof is ensured not to be stuck.

Description

Technical Field

[0001] This utility model relates to the field of crude oil storage tank technology, specifically a safety device for crude oil storage tanks. Background Technology

[0002] Crude oil storage tanks are large, regularly shaped containers used to store crude oil. They can be classified into external floating roof tanks and internal floating roof tanks. The floating roof of an external floating roof tank is located on the outside of the tank and connected to the tank wall, forming a sealed space. This design can effectively prevent the liquid inside the tank from contacting the outside air, reducing the possibility of oxygen entering the tank, thereby reducing the risk of explosion and fire. External floating roof tanks are suitable for storing volatile liquids, such as petroleum and chemicals.

[0003] The published patent document CN219135196U discloses an external floating roof tank. This patent document describes an external floating roof tank with multiple independent chambers, each chamber storing a different liquid material. Different chambers store different liquid materials, and the liquid materials do not mix with each other, which can meet the high storage requirements of liquid materials with high quality requirements and ensure purity. However, the aforementioned patent document cannot accurately monitor whether the external floating roof is tilting. Furthermore, in the initial stage of the external floating roof tilting, due to the large diameter of the floating roof tank, the unsafe tilting state of the external floating roof is generally not visible to the naked eye, and measures cannot be taken in time to prevent the accident from escalating further. Utility Model Content

[0004] The purpose of this invention is to provide a safety device for crude oil storage tanks, which solves the problems mentioned in the background art.

[0005] This application provides a safety device for a crude oil storage tank, including a tank body and a balance monitoring assembly. The tank body has a matching external floating roof, which includes a floating roof cover and a floating roof trough. The balance monitoring assembly includes a disc, four monitoring rods, and four fixing blocks. Four insert shafts are equidistantly fixed to the outer wall of the disc. One end of each monitoring rod has a corresponding insertion hole, and the bottom of the other end of each monitoring rod is fixedly connected to an mounting block. Several height detectors are fixedly mounted on the top of each monitoring rod. The four fixing blocks are equidistantly fixed to the outer edge of the top of the floating roof cover. The top of each fixing block has a mounting groove matching the mounting block, and symmetrical locking holes are formed on both sides of each fixing block. Symmetrical sliding grooves are formed on both sides of each mounting block. A locking block matching the locking hole is slidably connected inside the sliding groove. One end of each locking block is outside the sliding groove, and the other end of each locking block is fixedly connected to a spring, which is fixedly connected to the inner wall of the sliding groove.

[0006] Optionally, the top of the floating roof is provided with several drainage holes, a filter screen is fixedly installed on the upper side of the drainage holes, and a pressure sensor is provided between two drainage holes. The interior of the floating roof tank is provided with several interconnected drainage channels, and a water collection hole is provided in the middle of the floating roof tank. A drain pipe runs through the lower part of one side of the tank, and a long flexible hose is connected between the drain pipe and the water collection hole. A flow meter is provided on the drain pipe.

[0007] Optionally, a support shaft is fixedly connected to the bottom of the disc, and several support legs are fixedly connected to the bottom of the monitoring rod. The bottom of the support shaft and the support legs are in contact with the top of the floating roof.

[0008] Optionally, four limiting shafts are slidably connected through the floating roof cover and the floating roof tank. The lower end of the limiting shaft is fixedly installed to the bottom inner wall of the tank, and the upper end of the limiting shaft is fixedly connected to a connecting block. The connecting block is fixedly installed to the outer edge of the top of the tank.

[0009] Optionally, the bottom of the floating roof tank is fixedly connected with several floating roof supports.

[0010] Optionally, several sampling tubes are connected through and interference-fitted to the floating roof cover and floating roof tank.

[0011] Optionally, a fence is fixedly installed at the outer edge of the top of the tank.

[0012] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0013] 1. The technical solution of this application involves inserting the insert shaft into the insert hole, applying a force to the inside of the slide groove to the locking block, and then placing the mounting block inside the mounting groove. The locking block is reset by the spring and one end of the locking block passes through the locking hole, so that the balance monitoring component can be installed on the external floating top. The height of each point of the monitoring rod can be detected by multiple height detectors, thereby monitoring the balance of the external floating top without the need for visual inspection, ensuring that the external floating top does not jam.

[0014] 2. The technical solution of this application facilitates the discharge of rainwater and snow through drainage holes, filter screens, drainage channels, water collection holes, long hoses and drainage pipes, ensuring that the rainwater and snow on the floating roof are drained and preventing accidents of external floating roof sinking. The accumulation of rainwater and snow on the floating roof can be monitored by pressure sensors, and the amount of rainwater and snow discharged can be monitored by flow meters. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the balance monitoring component of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the floating roof cover and floating roof tank of this utility model;

[0020] Figure 5 This is a schematic diagram of the floating roof tank of this utility model viewed from below.

[0021] In the diagram: 1. Tank body; 2. Fence; 3. External floating roof; 31. Floating roof cover; 32. Floating roof trough; 4. Balance monitoring component; 41. Disc; 42. Monitoring rod; 43. Fixing block; 44. Insert shaft; 45. Insertion hole; 46. Mounting block; 47. Height detector; 48. Support shaft; 49. Support leg; 410. Mounting groove; 411. Locking hole; 412. Slide groove; 413. Locking block; 414. Spring; 5. Limiting shaft; 6. Connecting block; 7. Sampling tube; 8. Drainage pipe; 9. Flow meter; 10. Drainage hole; 11. Drainage trough; 12. Water collection hole; 13. Long flexible hose; 14. Pressure sensor; 15. Filter screen; 16. Floating roof support. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Please see Figure 1-3This utility model provides a safety device for crude oil storage tanks, including a tank body 1 and a balance monitoring assembly 4. The tank body 1 has a matching external floating roof 3 inside, which includes a floating roof cover 31 and a floating roof trough 32. The balance monitoring assembly 4 includes a disc 41, four monitoring rods 42, and four fixing blocks 43. Four insertion shafts 44 are equidistantly fixed to the outer wall of the disc 41. One end of each monitoring rod 42 has an insertion hole 45 matching the insertion shaft 44, and the bottom of the other end of the monitoring rod 42 is fixedly connected to an mounting block 46. Several... A height detector 47 and four fixing blocks 43 are equidistantly fixedly installed on the outer edge of the top of the floating roof cover 31. The top of the fixing block 43 is provided with a mounting groove 410 that matches the mounting block 46, and the two sides of the fixing block 43 are symmetrically provided with locking holes 411. The two sides of the mounting block 46 are symmetrically provided with sliding grooves 412. The sliding groove 412 is slidably connected with a locking block 413 that matches the locking hole 411. One end of the locking block 413 is outside the sliding groove 412, and the other end of the locking block 413 is fixedly connected with a spring 414. The spring 414 is fixedly connected to the inner wall of the sliding groove 412.

[0024] In this technical solution, by inserting each insertion shaft 44 into the insertion hole 45 of each monitoring rod 42, a force is applied to the locking block 413 towards the inside of the slide groove 412, causing the locking block 413 to squeeze the spring 414 and fully enter the inside of the slide groove 412. Then, the mounting block 46 is placed inside the mounting groove 410, and the spring 414 drives the locking block 413 to reset, so that one end of the locking block 413 passes through the locking hole 411. The balance monitoring component 4 can be installed on the outer floating top 3. The height of each monitoring rod 42 can be detected by multiple height detectors 47, thereby monitoring the balance of the outer floating top 3 without visual inspection, ensuring that the outer floating top 3 does not jam.

[0025] In some technical solutions, such as Figure 1 and Figure 4 As shown, the top of the floating roof cover 31 has several drainage holes 10. A filter screen 15 is fixedly installed on the upper side of the drainage holes 10, and a pressure sensor 14 is set between two drainage holes 10. The interior of the floating roof tank 32 has several interconnected drainage channels 11, and a water collection hole 12 is opened in the middle of the floating roof tank 32. A drain pipe 8 passes through the lower part of one side of the tank body 1. A long flexible hose 13 connects the drain pipe 8 and the water collection hole 12, and a flow meter 9 is installed on the drain pipe 8.

[0026] During use, rainwater and snowmelt can flow into the drainage trough 11 through the drainage hole 10 and the filter screen 15. The rainwater and snowmelt are then discharged through the water collection hole 12, the long hose 13 and the drain pipe 8, ensuring that the rainwater and snowmelt on the floating roof 31 are drained, and preventing the sinking of the outer floating roof 3 from occurring. The accumulation of rainwater and snowmelt on the floating roof 31 can be monitored by the pressure sensor 14, and the amount of rainwater and snowmelt discharged can be monitored by the flow meter 9.

[0027] In some technical solutions, such as Figure 2 As shown, a support shaft 48 is fixedly connected to the bottom of the disc 41, and several support legs 49 are fixedly connected to the bottom of the monitoring rod 42. The bottom of the support shaft 48 and the support legs 49 are in contact with the top of the floating roof 31.

[0028] In use, the support shaft 48 and the support leg 49 provide support for the disc 41 and the monitoring rod 42 respectively, preventing the disc 41 and the monitoring rod 42 from tipping over due to their own weight.

[0029] In some technical solutions, such as Figure 1 As shown, four limiting shafts 5 are slidably connected through the floating roof cover 31 and the floating roof tank 32. The lower end of the limiting shaft 5 is fixedly installed to the bottom inner wall of the tank 1, and the upper end of the limiting shaft 5 is fixedly connected to a connecting block 6. The connecting block 6 is fixedly installed to the outer edge of the top of the tank 1.

[0030] During use, the limiting shaft 5 ensures that the floating roof cover 31 and the floating roof tank 32 can only float in the vertical direction.

[0031] In some technical solutions, such as Figure 5 As shown, several floating roof supports 16 are fixedly connected to the bottom of the floating roof tank 32.

[0032] During use, the outer floating roof 3 is kept at a certain height by the floating roof support 16 to prevent the outer floating roof 3 from falling to the bottom of the tank and hitting the heater and agitator when the tank is empty.

[0033] In some technical solutions, such as Figure 1 and Figure 4 As shown, several sampling tubes 7 are connected through and interference-fitted to the floating roof cover 31 and the floating roof tank 32.

[0034] When in use, crude oil can be sampled from tank 1 through sampling tube 7.

[0035] In some technical solutions, such as Figure 1 As shown, a fence 2 is fixedly installed on the outer edge of the top of the tank 1.

[0036] When in use, the safety of construction personnel standing on top of the tank 1 is ensured by the fence 2.

[0037] Working principle: During the installation of the balance monitoring component 4, each insert shaft 44 is inserted into the insertion hole 45 of each monitoring rod 42. A force is applied to the locking block 413 towards the inside of the slide groove 412, causing the locking block 413 to compress the spring 414 and fully enter the slide groove 412. Then, the mounting block 46 is placed inside the mounting slot 410. The spring 414 drives the locking block 413 to reset, allowing one end of the locking block 413 to pass through the locking hole 411. This allows the balance monitoring component 4 to be installed on the outer floating top 3. Multiple height detectors 47 can detect the height of various points on the monitoring rod 42, thereby monitoring the balance of the outer floating roof 3. During use, rainwater and snow water flow into the drainage trough 11 through the drainage hole 10 and the filter screen 15, and then are discharged through the water collection hole 12, the long hose 13 and the drainage pipe 8, ensuring that the rainwater and snow water on the floating roof cover 31 are drained, and the outer floating roof 3 is less likely to sink. The accumulation of rainwater and snow water on the floating roof cover 31 can be monitored by the pressure sensor 14, and the amount of rainwater and snow water discharged can be monitored by the flow meter 9.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A safety device for a crude oil storage tank, comprising a tank body (1) and a balance monitoring component (4), characterized in that: The tank body (1) is equipped with a matching external floating roof (3), which includes a floating roof cover (31) and a floating roof trough (32). The balance monitoring component (4) includes a disc (41), four monitoring rods (42) and four fixing blocks (43). The outer wall of the disc (41) is fixedly connected with four insert shafts (44) at equal intervals. One end of the monitoring rod (42) is provided with an insertion hole (45) that matches the insert shaft (44), and the bottom of the other end of the monitoring rod (42) is fixedly connected with an installation block (46). Several height detectors (47) are fixedly installed on the top of the monitoring rod (42). The four fixing blocks (46) are fixedly connected to the external floating roof cover (31) and the external floating roof cover (32) are fixedly connected to the external floating roof cover (32). 3) The fixed blocks (43) are fixedly installed at equal intervals on the outer edge of the top of the floating roof (31). The top of the fixed blocks (43) is provided with a mounting groove (410) that matches the mounting blocks (46). The fixed blocks (43) are provided with symmetrical locking holes (411) on both sides. The mounting blocks (46) are provided with symmetrical sliding grooves (412) on both sides. The sliding grooves (412) are slidably connected with locking blocks (413) that match the locking holes (411). One end of the locking block (413) is outside the sliding groove (412), and the other end of the locking block (413) is fixedly connected with a spring (414). The spring (414) is fixedly connected to the inner wall of the sliding groove (412).

2. A safety device for crude oil storage tanks according to claim 1, characterized in that, The top of the floating roof cover (31) is provided with several drainage holes (10), a filter screen (15) is fixedly installed on the upper side of the drainage holes (10), and a pressure sensor (14) is provided between two drainage holes (10). The interior of the floating roof tank (32) is provided with several interconnected drainage channels (11), and a water collection hole (12) is provided in the middle of the floating roof tank (32). A drain pipe (8) runs through the lower part of one side of the tank (1). A long flexible hose (13) connects the drain pipe (8) and the water collection hole (12), and a flow meter (9) is provided on the drain pipe (8).

3. A safety device for crude oil storage tanks according to claim 1, characterized in that, The bottom of the disc (41) is fixedly connected to a support shaft (48), and the bottom of the monitoring rod (42) is fixedly connected to several support legs (49). The bottom of the support shaft (48) and the support legs (49) are in contact with the top of the floating roof (31).

4. A safety device for crude oil storage tanks according to claim 1, characterized in that, Four limiting shafts (5) are slidably connected through the floating roof cover (31) and the floating roof trough (32). The lower end of the limiting shaft (5) is fixedly installed to the bottom inner wall of the tank body (1), and the upper end of the limiting shaft (5) is fixedly connected to a connecting block (6). The connecting block (6) is fixedly installed to the outer edge of the top of the tank body (1).

5. A safety device for crude oil storage tanks according to claim 1, characterized in that, The bottom of the floating roof tank (32) is fixedly connected to several floating roof supports (16).

6. A safety device for crude oil storage tanks according to claim 1, characterized in that, Several sampling tubes (7) are connected through and interference-fitted to the floating roof cover (31) and floating roof tank (32).

7. A safety device for crude oil storage tanks according to claim 1, characterized in that, A fence (2) is fixedly installed on the outer edge of the top of the tank (1).

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