Anti-static petrochemical safety sealed storage tank

Abstract

The invention relates to the technical field of chemical product equipment, in particular to an anti-static petrochemical safety sealed storage tank which comprises a tank body. A containing shell for containing the tank body is horizontally arranged on the lower portion of the tank body, an opening is formed in the upper portion of the containing shell, the width of the opening is smaller than the diameter of the tank body, a containing groove communicated with the opening is formed in the containing shell, and the groove wall of the containing groove is of an arc-shaped structure. The tank body is horizontally and rotatably arranged in the containing groove around the axis of the containing groove, the circle center of the tank body coincides with the circle center of the containing groove, and a gravity center block is fixedly arranged at the bottom of the tank body. The influence on the tank body after a vehicle shakes left and right during transportation is reduced, so that the shaking frequency of petrochemical liquid in the tank body is reduced, and the probability of generating static electricity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical product equipment, and in particular to an anti-static petrochemical safety sealed storage tank. Background Art

[0002] The storage of petrochemical products often requires pressurizing the pressure vessels, so the sealing performance of the pressure vessels must be good. Traditional pressure vessels still have problems in sealing, and sometimes the sealing performance is not good. In addition, petrochemical products are usually flammable and explosive products. Sometimes the storage containers are made of metal and often carry static electricity. Static electricity can easily cause static sparks in pressure vessels storing petrochemical products and cause accidents.

[0003] Chinese patent CN210371978U discloses a pressure vessel with good sealing effect for storing petrochemical products, including a support seat, a transversely arranged tank body is fixedly connected to the support seat, both ends of the tank body are fixedly connected to heads, one side wall of the head is fixedly connected to a liquid level gauge, a side wall of the tank body away from the support seat is connected to a plurality of pipe connections, a side wall of the tank body away from the support seat is connected to a manhole, a sealing cover is provided on the manhole, a connecting block is fixedly connected to the bottom wall of the tank body, a fixing device is provided on the connecting block, a connecting groove is opened on the connecting block, a static conductive iron chain is provided in the connecting groove, one end of the static conductive iron chain is fixed in the connecting groove by a fixing device, and one end of the static conductive iron chain away from the connecting block is in contact with the ground.

[0004] Although the above scheme can improve the sealing performance of the sealed storage tank, and although wheels are arranged at the bottom of the sealed storage tank, the sealed storage tank in the above scheme cannot resist bumps well. When the petrochemical liquid is injected into the sealed storage tank, the bumps on the road cannot be overcome, which causes the petrochemical liquid to shake in the sealed storage tank. In long-distance transportation, the shaking of the vehicle is more obvious. When the vehicle is in motion, more bumps come from the shaking in the width direction of the vehicle. When the existing sealed storage tank is used on a vehicle, the sealed storage tank and the vehicle are mostly fixedly connected, that is, the sealed storage tank shakes synchronously with the bumps of the vehicle, and the shaking of the petrochemical liquid in the sealed storage tank is one of the reasons for generating static electricity. Summary of the invention

[0005] In view of the above problems, an anti-static petrochemical safety sealed storage tank is provided. By providing a containing shell and a center of gravity block, the containing shell is horizontally fixedly arranged on a vehicle, the tank body is horizontally rotatably arranged in the containing cavity of the containing shell, and the center of gravity block is fixedly arranged on the bottom of the tank body, so that the center of gravity block has a traction effect on the tank body, and the center of gravity block pulls the tank body under the action of gravity. When the vehicle shakes, the vehicle drives the containing shell to shake synchronously, especially when the vehicle shakes left and right, the vehicle drives the containing shell to shake left and right, that is, the containing shell rotates around its own axis. Since the tank body and the containing groove in the containing shell rotate in coordination, when the containing shell rotates around the axis of the containing shell itself, the tank body will not be affected by the containing shell, and since the center of gravity block is fixedly arranged on the bottom of the tank body, under the guidance of the center of gravity block, the shaking frequency of the tank body can be significantly reduced, and the rotational friction between the tank body and the containing groove is overcome, thereby reducing the impact of the left and right shaking of the vehicle on the tank body during transportation, thereby reducing the shaking times of the petrochemical liquid in the tank body and reducing the probability of generating static electricity.

[0006] In order to solve the problems of the prior art, the present invention provides an anti-static petrochemical safety sealed storage tank, comprising a tank body; a containing shell for containing the tank body is horizontally arranged at the lower part of the tank body, an opening is arranged at the upper part of the containing shell, the width of the opening is smaller than the diameter of the tank body, a containing groove communicated with the opening is arranged in the containing shell, the groove wall of the containing groove is an arc structure, the tank body is arranged in the containing groove so as to rotate horizontally around the axis of the containing groove and the center of the tank body coincides with the center of the containing groove, and a center of gravity block is fixedly arranged at the bottom of the tank body.

[0007] Preferably, a plurality of inflatable wheels are rotatably arranged on the accommodating groove, the axis of the inflatable wheel is parallel to the axis of the accommodating groove, an inflatable cavity is contained in the inflatable wheel, the inflatable wheels are evenly distributed in the accommodating groove around the axis of the accommodating cavity, the inflatable wheels roll in cooperation with the peripheral wall of the tank body, and the inflatable wheels are made of rubber material.

[0008] Preferably, an extension rod is provided on the tank body and penetrates through it in the radial direction of the tank body. The extension rod is slidably matched with the tank body. A floating plate is fixedly provided horizontally inside the tank body where the extension rod is located. The floating plate is movably arranged in the tank body along the extension direction of the extension rod. The floating plate has a highest position and a lowest position during its movement. When the floating plate is at the highest position, the side of the floating plate contacts the inner wall of the tank body. The floating plate divides the tank body into an upper chamber and a lower chamber. The lower chamber is filled with petrochemical liquid.

[0009] Preferably, a second switch valve is provided at the end of the upper cavity after the floating plate divides the tank body. The second switch valve is in an open state when the floating plate moves in the tank body, and is in a closed state when the floating plate contacts the inner wall of the tank body.

[0010] Preferably, the cover plate is fixedly arranged on the upper part of the extension rod, and the cover plate shields the penetration point between the extension rod and the tank body.

[0011] Preferably, a fixing unit for fixing the can body is fixedly arranged at the bottom of the can body, and after the fixing unit fixes the can body, the can body cannot rotate in the containing groove.

[0012] Preferably, the fixing unit includes fixing ropes respectively arranged on both sides of the center of gravity block. When the two fixing ropes are in a taut state at the same time, the center of gravity block is located directly below the tank body, and the two fixing ropes are symmetrically distributed about the center of gravity block.

[0013] Preferably, a winding box is respectively provided at the bottom of the two fixed ropes, and the bottom of the fixed rope is wound on the winding box. After the winding box is started, the fixed rope can be wound. A rotary drive is provided at the end of one of the winding boxes, and the rotary drive is used to drive the winding box to rotate. A torque sensor is provided between the rotary drive and the winding box. The torque sensor is preset with a maximum torque. When the torque sensor detects the maximum torque, the rotary drive stops running.

[0014] Preferably, a synchronous transmission assembly is provided between the two winding boxes, and the two winding boxes rotate synchronously through the transmission of the synchronous transmission assembly.

[0015] Preferably, a drainage groove is horizontally opened through the bottom of the receiving tank, and the drainage groove is used to drain the accumulated water gathered at the bottom of the receiving tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a containing shell and a center of gravity block, the containing shell is fixedly arranged horizontally on the vehicle, the tank body is horizontally rotatably arranged in the containing cavity of the containing shell, and the center of gravity block is fixedly arranged at the bottom of the tank body, so that the center of gravity block has a traction effect on the tank body, and the center of gravity block pulls the tank body under the action of gravity, and when the vehicle shakes, the vehicle drives the containing shell to shake synchronously, especially when the vehicle shakes left and right, the vehicle drives the containing shell to shake left and right, that is, the containing shell rotates around its own axis, because the tank body and the containing groove in the containing shell rotate in coordination, so when the containing shell rotates around its own axis, the tank body will not be affected by the containing shell, and because the center of gravity block is fixedly arranged at the bottom of the tank body, under the guidance of the center of gravity block, the shaking frequency of the tank body can be significantly reduced, and the rotational friction between the tank body and the containing groove is overcome, thus reducing the impact of the vehicle shaking left and right during transportation on the tank body, thereby reducing the shaking times of the petrochemical liquid in the tank body and reducing the probability of generating static electricity.

[0017] 2. The present invention is also provided with a floating plate and an extension rod. The floating plate and the extension rod are arranged so that the floating plate can rise and contact the inner wall of the tank body when the petrochemical liquid is injected into the tank body, thereby ensuring that the petrochemical liquid can fill the lower cavity of the tank body after being divided by the floating plate, thereby avoiding the petrochemical liquid in the tank body from shaking along the axis direction of the tank body, avoiding the generation of static electricity, and avoiding the influence of the shaking petrochemical liquid on the vehicle control during vehicle transportation, thereby improving the safety of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of an anti-static petrochemical safety sealed storage tank.

[0019] Figure 2 It is a side view of an anti-static petrochemical safety sealed storage tank.

[0020] Figure 3 It is an anti-static petrochemical safety sealed storage tank Figure 2 Schematic cross-sectional view at AA in the middle.

[0021] Figure 4 It is an anti-static petrochemical safety sealed storage tank Figure 3 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 5 A cutaway perspective view of an anti-static petrochemical safety sealed storage tank Figure 1 .

[0023] Figure 6 A cutaway perspective view of an anti-static petrochemical safety sealed storage tank Figure 2 .

[0024] Figure 7 A three-dimensional diagram of an anti-static petrochemical safety sealed storage tank with the tank body, floating plate and extension rod removed. Figure 1 .

[0025] Figure 8 A three-dimensional diagram of an anti-static petrochemical safety sealed storage tank with the tank body, floating plate and extension rod removed. Figure 2 .

[0026] Fig. 9 It is an anti-static petrochemical safety sealed storage tank Figure 8 A partial enlarged schematic diagram of point C in the middle.

[0027] The numbers in the figure are: 1. Tank body; 11. First switch valve; 12. Floating plate; 13. Extension rod; 14. Second switch valve; 15. Cover plate; 2. Center of gravity block; 3. Container shell; 31. Container groove; 311. Drain groove; 32. Inflatable wheel; 4. Fixing unit; 41. Fixing rope; 42. Winding box; 43. Rotary drive; 44. Synchronous transmission assembly; 441. Synchronous wheel; 442. Synchronous belt; 443. Gear. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Reference Figure 1-Figure 4 and Figure 8 : An anti-static petrochemical safety sealed storage tank, comprising a tank body 1; a containing shell 3 for containing the tank body 1 is horizontally arranged at the lower part of the tank body 1, an opening is arranged at the upper part of the containing shell 3, the width of the opening is smaller than the diameter of the tank body 1, a containing groove 31 communicating with the opening is arranged in the containing shell 3, the groove wall of the containing groove 31 is an arc structure, the tank body 1 is horizontally rotated around the axis of the containing groove 31 and is arranged in the containing groove 31, and the center of the tank body 1 coincides with the center of the containing groove 31, and a center of gravity block 2 is fixedly arranged at the bottom of the tank body 1.

[0030] A first switch valve 11 is provided at the end of the tank body 1, and the petrochemical liquid enters the tank body 1 through the first switch valve 11, and can also be discharged from the tank body 1 through the first switch valve 11. The width of the upper opening of the containing shell 3 is set to be smaller than the diameter of the tank body 1 to prevent the tank body 1 from being unable to fit tightly with the containing groove 31 during the bumping process of the tank body 1, and to prevent the tank body 1 from directly colliding with the containing groove 31 during the bumping process of the vehicle. In the prior art, when transporting petrochemical liquids, the tank body 1 is usually fixed directly on the vehicle, and the vehicle drives the tank body 1 to move synchronously. However, when filling, the petrochemical liquid in the tank body 1 cannot be completely filled. This is because when the oil is filled into the tank body 1, the amount of oil injected cannot be detected. When filling, a certain amount of space is usually left in the tank body 1 to avoid overflow due to overfilling of the oil. However, since there is air in the tank body 1, the oil in the tank body 1 has space to shake, and the vehicle is inevitably bumpy during transportation. The shaking of the vehicle mainly consists of shaking in the front and rear directions of the vehicle and shaking in the left and right directions of the vehicle. The shaking of the petrochemical liquid in the tank body 1 is also one of the main reasons for the generation of static electricity. Therefore, as long as the shaking frequency of the petrochemical liquid in the tank body 1 is reduced, the generation of static electricity can be reduced. In order to solve the above problem, a center of gravity block 2 and a containing shell 3 are set at the bottom of the tank body 1. The specific working principle is as follows: the containing shell 3 is horizontally fixed on the vehicle. The tank body 1 is horizontally rotated and arranged in the accommodating cavity of the accommodating shell 3, and a center of gravity block 2 is fixedly arranged at the bottom of the tank body 1, so that the center of gravity block 2 has a traction effect on the tank body 1, and the center of gravity block 2 pulls the tank body 1 under the action of gravity. When the vehicle shakes, the vehicle drives the accommodating shell 3 to shake synchronously, especially when the vehicle shakes left and right, the vehicle drives the accommodating shell 3 to shake left and right, that is, the accommodating shell 3 rotates around its own axis. Since the tank body 1 and the accommodating groove 31 in the accommodating shell 3 rotate in coordination, when the accommodating shell 3 rotates around its own axis, the tank body 1 will not be affected by the accommodating shell 3, and since the center of gravity block 2 is fixedly arranged at the bottom of the tank body 1, under the guidance of the center of gravity block 2, the shaking frequency of the tank body 1 can be significantly reduced, and the rotational friction between the tank body 1 and the accommodating groove 31 is overcome, thereby reducing the impact of the vehicle shaking left and right on the tank body 1 during transportation, thereby reducing the shaking times of the petrochemical liquid in the tank body 1 and reducing the probability of generating static electricity.

[0031] Reference Figure 7 : A plurality of inflatable wheels 32 are rotatably arranged on the receiving groove 31, the axis of the inflatable wheel 32 is parallel to the axis of the receiving groove 31, an inflatable cavity is contained in the inflatable wheel 32, the inflatable wheels 32 are evenly distributed in the receiving groove 31 around the axis of the receiving cavity, the inflatable wheels 32 roll in cooperation with the peripheral wall of the tank body 1, and the inflatable wheels 32 are made of rubber material.

[0032] An air chamber is provided in the air wheel 32, and the material of the air wheel 32 is selected to be rubber. The purposes are as follows: first, the air wheel 32 is made of rubber because rubber has good insulation and certain elasticity. During transportation, the air wheel 32 made of rubber has certain shock absorption. Second, the air chamber is provided in the air wheel 32, so that the shock absorption effect of the air wheel 32 is further improved. Moreover, through the provision of the air wheel 32, the tank body 1 cannot directly contact the receiving groove 31 of the receiving shell 3, thereby avoiding the generation of static electricity when the receiving groove 31 is in direct contact with the tank body 1 and rotates, thereby affecting the petrochemical liquid in the tank body 1.

[0033] Reference Figure 5 and Figure 6 : An extension rod 13 is provided on the tank body 1 along the radial direction of the tank body 1, and the extension rod 13 is slidably matched with the tank body 1. A floating plate 12 is fixedly provided horizontally inside the tank body 1 where the extension rod 13 is located. The floating plate 12 is movable in the tank body 1 along the extension direction of the extension rod 13. The floating plate 12 has a highest position and a lowest position during its movement. When the floating plate 12 is at the highest position, the side of the floating plate 12 contacts the inner wall of the tank body 1. The floating plate 12 divides the tank body 1 into an upper chamber and a lower chamber, and the lower chamber is filled with petrochemical liquid.

[0034] Since the extension rod 13 passes through the tank body 1 and is slidably arranged along the radial direction of the tank body 1, it is worth noting that the straight line connected by the extension rod 13 and the center of gravity block 2 can just pass through the axis of the tank body 1. Since the center of gravity block 2 is fixedly arranged on the lower side of the tank body 1, the extension rod 13 is vertically arranged on the upper side of the tank body 1. When the tank body 1 is in an empty tank state, the extension pipe arranged on the tank body 1 is in a vertical state. When the petrochemical liquid is injected into the tank body 1 through the first switch valve 11, the petrochemical liquid entering the tank body 1 gathers and rises in the tank body 1. The liquid level of the petrochemical liquid in the tank body 1 gradually rises to the bottom of the floating plate 12. The bottom of the floating plate 12 is lifted by the petrochemical liquid after contacting with the rising petrochemical liquid. Since the floating plate 12 has buoyancy, when the petrochemical liquid in the tank body 1 continues to increase, the rising petrochemical liquid lifts the floating plate 12. Finally, the floating plate 12 abuts against the inner wall of the tank body 1 under the action of buoyancy. The equipment for injecting petrochemical liquid is usually All of them are equipped with pressure monitoring devices. When the floating plate 12 contacts the inner wall of the tank body 1, the petrochemical liquid can no longer be poured into the tank body 1, and the apparent pressure of the petrochemical liquid filling equipment increases significantly. At this time, the petrochemical liquid filling equipment needs to stop filling, and then the first switch valve 11 is closed, so that the filling is completed. During transportation, when the vehicle accelerates or brakes, the petrochemical liquid in the tank body 1 will be subjected to a force along the length direction of the vehicle, and the force is parallel to the axial direction of the tank body 1. Since the floating plate 12 abuts against the inner wall of the tank body 1, and an extension rod 13 is provided on the upper part of the floating plate 12, and the extension rod 13 passes through the upper part of the tank body 1, under the guidance of the extension rod 13, the floating plate 12 always moves along the radial direction of the tank body 1. The petrochemical liquid in the tank body 1 cannot shake along the axial direction of the tank body 1 under the restriction of the floating plate 12, thereby avoiding the influence of the front and rear shaking of the vehicle on the petrochemical liquid in the tank body 1, and further reducing the shaking frequency.

[0035] Reference Figure 6 A second switch valve 14 is provided at the end of the upper cavity after the floating plate 12 divides the tank body 1. The second switch valve 14 is in an open state when the floating plate 12 moves in the tank body 1. When the floating plate 12 contacts the inner wall of the tank body 1, the second switch valve 14 is in a closed state.

[0036] When the first switch valve 11 is opened, the second switch valve 14 also needs to be opened. Otherwise, when the petrochemical liquid is injected into the tank body 1, if the second switch valve 14 is in a closed state, the petrochemical liquid cannot be smoothly injected into the tank body 1. When the petrochemical liquid is injected into the tank body 1, the floating plate 12 located in the tank body 1 is always located on the upper part of the petrochemical liquid. After the floating plate 12 contacts the inner wall of the tank body 1, the floating plate 12 stops moving. At this time, the first switch valve 11 and the second switch valve 14 are both in a closed state, so that the floating plate 12 can be locked in the tank body 1, that is, after the second switch valve 14 is closed, the upper cavity formed by the floating plate 12 completes the air lock, and the lower cavity under the floating plate 12 completes the liquid lock. At the same time, an extension rod 13 is provided on the upper part of the floating plate 12 to limit the moving direction of the floating plate 12, thereby ensuring that the floating plate 12 does not move again after contacting the tank body 1.

[0037] Reference Figure 5 and Figure 6 The cover plate 15 is fixedly arranged on the upper part of the extension rod 13, and the cover plate 15 shields the penetration point between the extension rod 13 and the tank body 1.

[0038] The cover plate 15 is arranged on the upper part of the extension rod 13 to effectively prevent external rainwater from flowing into the tank body 1 through the sliding connection between the extension rod 13 and the tank body 1, thereby damaging the quality of the petrochemical liquid in the tank body 1.

[0039] Reference Figure 2 and Figure 3 A fixing unit 4 for fixing the tank body 1 is fixedly arranged at the bottom of the tank body 1. After the fixing unit 4 fixes the tank body 1, the tank body 1 cannot rotate in the receiving groove 31.

[0040] Reference Figure 3 and Figure 5 The fixing unit 4 includes fixing ropes 41 respectively arranged on both sides of the center of gravity block 2. When the two fixing ropes 41 are in a taut state at the same time, the center of gravity block 2 is located directly below the tank body 1, and the two fixing ropes 41 are symmetrically distributed about the center of gravity block 2.

[0041] Reference Figure 5 , Figure 7 and Figure 8 : Winding boxes 42 are respectively provided at the bottom of the two fixed ropes 41, and the bottom of the fixed rope 41 is wound on the winding boxes 42. After the winding boxes 42 are started, the fixed rope 41 can be wound. A rotary driver 43 is provided at the end of one of the winding boxes 42. The rotary driver 43 is used to drive the winding box 42 to rotate. A torque sensor is provided between the rotary driver 43 and the winding box 42. The torque sensor is preset with a maximum torque. When the torque sensor detects the maximum torque, the rotary driver 43 stops running.

[0042] The rotary drive 43 is preferably a servo motor, and a synchronous transmission component 44 is arranged between the two winding boxes 42. When the petrochemical liquid needs to be added to the tank body 1 or the petrochemical liquid in the tank body 1 needs to be discharged, the tank body 1 is first in a fixed state when needed, and the rotary drive 43 is started at this time, and the rotary drive 43 drives the winding box 42 to rotate. Under the drive of the synchronous transmission component 44, the two winding boxes 42 rotate synchronously, and the two winding boxes 42 wind up the fixed rope 41 synchronously. When the two fixed ropes 41 are in a taut state, the tank body 1 is fixed at this time. A torque sensor is arranged between the rotary drive 43 and the winding box 42. The torque sensor is preset with a maximum torque. When the rotary drive 43 is started, the rotating speed of the rotating drive 43 is increased, and the rotating speed of the rotating drive 43 is increased. When the rotating speed of the rotating drive 43 is increased ... After the actuator 43 drives the winding box 42 to complete the winding of the fixing rope 41, the fixing rope 41 is in a taut state. When the rotary driver 43 continues to run, the torque of the torque sensor will increase. When the torque value reaches the maximum torque, the rotary driver 43 stops rotating, thereby avoiding the situation where the fixing rope 41 is broken due to excessive torque. After the infusion is completed, the rotary driver 43 rotates in the opposite direction to release the fixing rope 41 wound on the winding box 42. The release amount of the fixing rope 41 needs to be determined according to the actual situation. After the fixing rope 41 is released, the tank body 1 located in the receiving groove 31 can rotate with the receiving groove 31 only when the vehicle is bumpy, thereby reducing the impact of the vehicle bumps and shakes on the tank body 1.

[0043] Reference Figure 6 and Fig. 9 : A synchronous transmission assembly 44 is arranged between the two winding boxes 42, and the two winding boxes 42 rotate synchronously through the transmission of the synchronous transmission assembly 44.

[0044] The synchronous transmission assembly 44 includes two groups in total, each group is provided with two synchronous wheels 441, a synchronous belt 442 and a gear 443, the two synchronous wheels 441 are arranged horizontally, and one of the synchronous wheels 441 is fixedly set at the end of the receiving box, the synchronous belt 442 is sleeved on the two synchronous wheels 441, the synchronous belt 442 and the synchronous wheels 441 are matched for transmission, the gear 443 is fixedly set on the other synchronous wheel 441, the other synchronous wheel 441 refers to the synchronous wheel 441 connected to the winding box 42, the gear 443 is fixedly set at the end of the synchronous wheel 441, and the two gears 443 in the two groups of synchronous transmission assemblies 44 are meshed with each other, so that when the rotary drive 43 is started, the synchronous transmission assembly 44 can drive the two winding boxes 42 to rotate synchronously.

[0045] Reference Figure 4 A drainage groove 311 is horizontally opened through the bottom of the receiving groove 31, and the drainage groove 311 is used to drain the accumulated water gathered at the bottom of the receiving groove 31.

[0046] By horizontally penetrating the bottom of the receiving groove 31 with a drainage groove 311, it is ensured that the accumulated water at the bottom of the receiving groove 31 can be smoothly discharged through the drainage groove 311, thereby preventing rainwater from accumulating in the receiving groove 31. After a long period of accumulation, the bottom of the receiving groove 31 will be corroded, thereby reducing the strength of the receiving shell 3.

[0047] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An anti-static petrochemical safety sealed storage tank, comprising a tank body (1); It is characterized in that A containing shell (3) for containing the tank body (1) is horizontally arranged at the lower part of the tank body (1); an opening is arranged at the upper part of the containing shell (3); the width of the opening is smaller than the diameter of the tank body (1); a containing groove (31) communicating with the opening is arranged in the containing shell (3); the groove wall of the containing groove (31) is an arc-shaped structure; the tank body (1) is arranged in the containing groove (31) so as to rotate horizontally around the axis of the containing groove (31); the center of the tank body (1) and the center of the containing groove (31) coincide with each other; and a center of gravity block (2) is fixedly arranged at the bottom of the tank body (1).

2. The anti-static petrochemical safety sealed storage tank according to claim 1 is characterized in that: A plurality of inflatable wheels (32) are rotatably arranged on the receiving groove (31); the axes of the inflatable wheels (32) are parallel to the axis of the receiving groove (31); an inflatable cavity is provided in the inflatable wheels (32); the inflatable wheels (32) are evenly distributed in the receiving groove (31) around the axis of the receiving cavity; the inflatable wheels (32) are in rolling engagement with the peripheral wall of the tank body (1); and the inflatable wheels (32) are made of rubber material.

3. The anti-static petrochemical safety sealed storage tank according to claim 1 is characterized in that: An extension rod (13) is provided on the tank body (1) and penetrates along the radial direction of the tank body (1). The extension rod (13) and the tank body (1) are slidably matched. A floating plate (12) is fixedly provided horizontally inside the tank body (1) where the extension rod (13) is located. The floating plate (12) is arranged inside the tank body (1) to move along the extension direction of the extension rod (13). The floating plate (12) has a highest position and a lowest position during its movement. When the floating plate (12) is at the highest position, the side of the floating plate (12) contacts the inner wall of the tank body (1). The floating plate (12) divides the tank body (1) into an upper chamber and a lower chamber. The lower chamber is filled with petrochemical liquid.

4. The anti-static petrochemical safety sealed storage tank according to claim 3 is characterized in that: A second switch valve (14) is provided at the end of the upper chamber after the floating plate (12) divides the tank body (1). The second switch valve (14) is in an open state when the floating plate (12) moves in the tank body (1). When the floating plate (12) contacts the inner wall of the tank body (1), the second switch valve (14) is in a closed state.

5. The anti-static petrochemical safety sealed storage tank according to claim 3 is characterized in that: The cover plate (15) is fixedly arranged on the upper part of the extension rod (13), and the cover plate (15) shields the penetration point between the extension rod (13) and the tank body (1).

6. The anti-static petrochemical safety sealed storage tank according to claim 1 is characterized in that: A fixing unit (4) for fixing the tank body (1) is fixedly arranged at the bottom of the tank body (1); after the fixing unit (4) fixes the tank body (1), the tank body (1) cannot rotate in the containing groove (31).

7. The anti-static petrochemical safety sealed storage tank according to claim 6 is characterized in that: The fixing unit (4) comprises fixing ropes (41) respectively arranged on both sides of the center of gravity block (2); when the two fixing ropes (41) are in a taut state at the same time, the center of gravity block (2) is located directly below the tank body (1), and the two fixing ropes (41) are symmetrically distributed about the center of gravity block (2).

8. The anti-static petrochemical safety sealed storage tank according to claim 7 is characterized in that: A winding box (42) is provided at the bottom of each of the two fixed ropes (41). The bottom of each fixed rope (41) is wound on the winding box (42). When the winding box (42) is started, the fixed rope (41) can be wound. A rotary driver (43) is provided at the end of one of the winding boxes (42). The rotary driver (43) is used to drive the winding box (42) to rotate. A torque sensor is provided between the rotary driver (43) and the winding box (42). The torque sensor is preset with a maximum torque. When the torque sensor detects the maximum torque, the rotary driver (43) stops running.

9. The anti-static petrochemical safety sealed storage tank according to claim 8, characterized in that: A synchronous transmission assembly (44) is provided between the two winding boxes (42), and the two winding boxes (42) rotate synchronously through the transmission of the synchronous transmission assembly (44).

10. The anti-static petrochemical safety sealed storage tank according to claim 1, characterized in that: A drainage groove (311) is horizontally provided through the bottom of the containing groove (31), and the drainage groove (311) is used to discharge the accumulated water gathered at the bottom of the containing groove (31).

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