Flexible device for the dispersion of multiple power sources in a floating roof of a tank

Abstract

The application discloses an oil tank inner dispersion multi-power flexible device floating disc, and relates to the technical field of the oil tank inner floating disc. The linear motor is adopted to drive the floating disc to move up and down, the linear motor is provided with a pneumatic locking structure, the mover of the linear motor can be locked at any position, so that the floating disc is fixed at any position of the oil storage tank, meanwhile, the flexible device is installed on the floating disc, the skin bag of the flexible device is inflated to reduce the pressure of the oil and air on the floating disc, so that the buffering effect is achieved, and the structure of the floating disc and related components are protected. The novel floating disc has the advantages of simple structure, stable operation, high reliability, flexible floating disc stopping position, good overall equipment mechanical property and high energy utilization rate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of floating disc in oil tank, and particularly relates to a floating disc with dispersed multi-power flexible device in oil tank. BACKGROUND

[0002] The reserve of national energy such as oil occupies a basic position in the energy security system of a country. Since the 21st century, with the continuous development of economy and the continuous progress of science and technology in China, the demand for important national energy such as oil has also been increasing. In order to meet the demand of energy reserve in China, the research on energy reserve related technology has become a top priority. The development of related technology of large oil storage tank, which is a common energy reserve device, has become a very key link.

[0003] The floating disc and its related sealing unit in the oil storage tank can isolate the air above and the oil below, reduce the volatilization of the oil in the oil storage tank, reduce the loss during the storage of the oil, and store the oil for a longer time. At the same time, effectively isolating the oil and air can greatly reduce the occurrence of fire, explosion and other accidents, and ensure the safety and reliability of the oil storage process.

[0004] Most of the current floating discs move up and down relying on buoyancy. When the oil storage tank is filled with oil, the floating disc will float up as the oil level rises. When the oil storage tank is discharged, the floating disc will sink as the oil level drops. In order to prevent the floating disc from sinking to the bottom, a stand is installed below the floating disc. When the floating disc sinks to a certain height, the stand supports the floating disc from sinking. The traditional floating disc structure is complex, and the stand and other structures will occupy a large amount of oil storage space, resulting in low utilization rate of the oil storage space. At the same time, only relying on buoyancy to drive the floating disc to move up and down, the floating disc will sway when encountering protrusions, welds and other positions on the wall of the oil storage tank, causing part of the oil gas to mix with air, which is easy to cause explosion, fire and other accidents. At the same time, when encountering protrusions and welds, the oil pressure at the lower part of the floating disc will increase, causing damage to part of the structure of the floating disc. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides a floating disc with dispersed multi-power flexible device in oil tank. The dispersed multi-power direct drive structure can directly drive the floating disc to move up and down. The multiple power sources together can make the floating disc move more smoothly, reduce the swing of the floating disc during movement, and effectively prevent the mixing of oil and air. At the same time, the flexible structure can buffer the pressure of the oil on the floating disc, which can well protect the structure of the floating disc and its related parts.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] The application discloses a floating plate of an oil tank, which is provided with a plurality of flexible devices and is driven by a plurality of power sources.

[0008] Further, the linear motor comprises a linear motor mover and a linear motor stator; the linear motor stator is provided with a clamping block, one end of the clamping block being connected with a spring; the other end of the spring is connected with the linear motor stator; the linear motor stator is further provided with a ventilation passage; the linear motor mover and the linear motor stator are matched with each other, so that the linear motor mover can drive the floating plate to move up and down; when the linear motor needs to be locked, the ventilation passage is ventilated, the clamping block is extended to clamp the linear motor mover under the drive of air pressure, the linear motor mover is fixed, and the spring is in a stretching state; when the linear motor moves again, the ventilation passage is exhausted, the clamping block is restored to the original position under the action of the spring tension, and the linear motor mover starts to move up and down again.

[0009] Further, the side edge of the floating plate is provided with a T-shaped groove for mounting the floating plate sealing unit; the four through holes on the floating plate are uniformly distributed along the circumference of the floating plate, the flexible device is connected in the through hole through screw threads, and the flexible device can buffer the oil pressure.

[0010] Further, the flexible device comprises an installation pressing plate, a skin bag and eight second inner hexagonal screws, the installation pressing plate is provided with eight small holes, the skin bag is also provided with eight small holes, and the second inner hexagonal screws can pass through the small holes of the installation pressing plate and the small holes of the skin bag to be connected with the floating plate; the installation pressing plate and the skin bag can be sealed on the floating plate by tightening the second inner hexagonal screws.

[0011] Compared with the prior art, the application has the following advantages:

[0012] 1. The application directly drives the floating plate by the linear motor, directly drives the floating plate to move up and down by the linear motor mover, saves a large number of transmission components, has a simple structure and high operation efficiency.

[0013] 2、The four linear motors are used as power sources in the application, on the one hand, the movement of the floating disc is more stable, and the mixing of oil and air caused by the shaking of the floating disc is reduced, on the other hand, the multiple motor driving can ensure the reliability of the floating disc operation, even if one motor is damaged, the floating disc can still complete the movement under the driving of the other three motors, which greatly improves the reliability of the floating disc operation.

[0014] 3、The linear motor used in the application has a locking mechanism, the mover of the linear motor is fixed through the locking mechanism, so that the floating disc can be fixed at any position of the oil storage tank, and the flexibility of the movement of the floating disc is greatly improved.

[0015] 4、The flexible device is used to buffer the pressure impact of oil pressure on the floating disc, when the oil pressure below the floating disc is large, the bladder of the flexible device is inflated, part of the oil is absorbed to reduce the pressure of the oil on the floating disc, when the air pressure above the floating disc is high, the flexible device absorbs part of the gas to reduce the pressure above the floating disc, therefore, the flexible device used in the application can reduce the impact force on the floating disc on the one hand, and achieve the purpose of protecting the floating disc, on the other hand, the impact load of the oil on the motor can be reduced, so that the service life of the motor is prolonged.

[0016] 5、The linear motor used in the application directly drives the floating disc, because of the high precision of the linear motor, the position of the floating disc can be accurately controlled. When the oil inlet and outlet of the oil inlet and outlet are known, the required floating disc height can be accurately calculated, so that the oil seal is realized. In addition, when the oil outlet is discharged, the linear motor can be directly driven by the floating disc to realize real-time sealing of the oil by using the "fast response" characteristics of the linear motor. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the installation schematic diagram of the application;

[0018] Figure 2 is the structure schematic diagram of the application;

[0019] Figure 3 is the structure schematic diagram of the lower flange in the application;

[0020] Figure 4 is the structure schematic diagram of the upper flange plate in the application;

[0021] Figure 5 is the structure schematic diagram of the mover and the stator of the linear motor in the application;

[0022] Figure 6 is the locking structure schematic diagram of the linear motor in the application;

[0023] Figure 7 is the structure schematic diagram of the floating disc in the application;

[0024] Figure 8 is the installation schematic diagram of the flexible device in the present application;

[0025] Figure 9 is the schematic diagram of the flexible device bulging upward when the oil inlet speed of the oil tank is greater than the floating disc rising speed in the present application;

[0026] Figure 10 is the schematic diagram of the flexible device bulging downward when the oil outlet speed of the oil tank is greater than the floating disc descending speed in the present application.

[0027] Explanation of figure marks:

[0028] 1, linear motor; 101, linear motor moving part; 102, linear motor stator; 103, clamping block; 104, spring; 105, air passage; 2, lower flange; 3, floating disc; 4, floating disc sealing unit; 5, flexible device; 501, installation pressing sheet; 502, skin bag; 503, second inner hexagonal screw; 6, upper flange plate; 7, connecting support; 8, fixed support; 9, first inner hexagonal screw; 10, oil tank; 11, oil inlet; 12, oil outlet. DETAILED DESCRIPTION

[0029] The present application will be described in detail below with reference to the drawings.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a floating disc with flexible device dispersed in an oil tank includes seven parts of linear motor 1, lower flange 2, floating disc 3, floating disc sealing unit 4, flexible device 5, upper flange plate 6 and connecting support 7. Among them, four evenly distributed linear motors 1 are connected with four lower flanges 2 respectively, and the four lower flanges 2 are connected with the floating disc 3, so as to realize that the four linear motors 1 directly drive the floating disc 3, and through controlling the synchronous extension and contraction of the four linear motors 1, the up and down movement of the floating disc 3 can be realized. The floating disc 3 is connected with the floating disc sealing unit 4, which can well isolate the oil below the floating disc 3 and the air above the floating disc 3, at the same time, four through holes are opened on the floating disc 3, and four flexible devices 5 are installed in the through holes respectively. The four linear motors 1 are connected with four upper flange plates 6 above respectively, the four upper flange plates 6 connect the four linear motors 1 through four connecting supports 7, at the same time, the upper flange plates 6 connect the fixed support 8, and the fixed support 8 is connected with the oil tank 10 through two evenly distributed first inner hexagonal screws 9. The oil tank 10 has an oil inlet 11 and an oil outlet 12.

[0031] Referring to Figure 5The movement module of the linear motor 1 comprises a linear motor mover 101 and a linear motor stator 102, the linear motor mover 101 is provided with a mover magnetic pole, and the linear motor mover 101 is driven to move up and down by the cooperation of the linear motor mover 101 and the linear motor stator 102, so as to drive the floating plate 3 to move up and down.

[0032] With reference to Figure 6 The locking module of the linear motor 1 comprises a clamping block 103, a spring 104 and a ventilation channel 105, when the linear motor 1 needs to be locked, the ventilation channel 105 is ventilated, the clamping block 103 is extended to clamp the linear motor mover 101 under the driving of the air pressure, and the spring 104 is pulled to be in a stretched state; when the linear motor 1 moves again, the ventilation channel 105 is exhausted, and the clamping block 103 is restored to the original position under the action of the pulling force of the spring 104, so that the linear motor mover 101 starts to move up and down again.

[0033] With reference to Figure 7 And Figure 8 The floating plate 3 is provided with a T-shaped groove on the side for installing a floating plate sealing unit 4, so as to separate the air above the floating plate 3 from the oil below the floating plate 3, realize the sealing of the oil below the floating plate 3, and well reduce the volatilization of the oil. Meanwhile, the floating plate 3 is provided with four through holes which are uniformly distributed, and the through holes are provided with threaded holes for being connected with the flexible device 5, and the flexible device 5 can realize the buffering effect on the oil pressure.

[0034] With reference to Figure 8 The flexible device 5 comprises an installation pressing plate 501, a skin bag 502 and eight second inner hexagonal screws 503, the installation pressing plate 501 is provided with eight small holes, the skin bag 502 is also provided with eight small holes, and the screws 503 can pass through the small holes of the installation pressing plate 501 and the small holes of the skin bag 502 to be connected with the floating plate 3. The installation pressing plate 501 and the skin bag 502 can be pressed tightly by tightening the second inner hexagonal screws 503, so as to realize the sealing effect.

[0035] The working principle of the buffering process of the flexible device 5 is as follows:

[0036] With reference to Figure 9 When the oil inlet 11 of the oil storage tank 10 starts to feed oil, the mover 101 of the linear motor 1 moves upwards to pull the floating plate 3 to move upwards, when the oil feeding speed is greater than the moving speed of the floating plate 3 upwards, the oil pressure below the floating plate 3 increases, the skin bag 502 of the flexible device 5 is inflated upwards to absorb part of the oil, so as to reduce the pressure of the oil below the floating plate 3 on the floating plate 3. Figure 10When the oil outlet 12 of the oil storage tank 10 discharges oil, the mover 101 of the linear motor 1 moves downward, pushing the floating plate 3 to move downward. When the oil discharge speed is greater than the downward movement speed of the floating plate 3, the flexible device 5 bulges downward, absorbing part of the air above the floating plate 3, reducing the pressure of the air above the floating plate 3 on the floating plate 3.

Claims

1. A floating roof with a flexible, multi-powered device for dispersing power within an oil tank, characterized in that: The system includes a linear motor (1), a lower flange (2), a floating disc (3), a floating disc sealing unit (4), a flexible device (5), an upper flange (6), and a connecting bracket (7); the number of each of the linear motors (1), lower flanges (2), flexible devices (5), upper flanges (6), and connecting brackets (7) is four; the linear motors (1) are evenly distributed circumferentially on the floating disc (3); the four linear motors (1) are respectively connected to the corresponding lower flanges (2), and the four lower flanges (2) are connected to the floating disc (3). By controlling the synchronous extension and retraction of the four linear motors (1), the floating disc (3) can move up and down; the floating disc (3) is connected to the floating disc sealing unit (4), and the floating disc seal is sealed. The sealing unit (4) can isolate the oil below the floating plate (3) and the air above the floating plate (3); the floating plate (3) has four through holes, and each through hole is equipped with a flexible device (5); the four linear motors (1) are connected to the corresponding upper flanges (6) respectively, and the upper flanges (6) connect the four linear motors (1) through four connecting brackets (7); the upper flanges (6) are provided with fixed brackets (8), and the fixed brackets (8) are connected to the oil storage tank (10) through two first hexagonal screws (9); the oil storage tank (10) is provided with an oil inlet (11) and an oil outlet (12); the flexible device (5) can buffer the oil pressure.

2. The floating roof of a multi-powered flexible device for dispersing oil tanks according to claim 1, characterized in that: The linear motor (1) includes a linear motor mover (101) and a linear motor stator (102); the linear motor stator (102) is provided with a clamping block (103), and one end of a spring (104) is connected to the clamping block (103); the other end of the spring (104) is connected to the linear motor stator (102); the linear motor stator (102) is also provided with a ventilation channel (105); the linear motor mover (101) and the linear motor stator (102) cooperate with each other to make the linear motor mover (101) move up and down. When in motion, it can drive the floating plate (3) to complete the up and down movement; when the linear motor (1) needs to be locked, the ventilation channel (105) is ventilated, and under the drive of air pressure, the clamping block (103) extends to clamp the linear motor mover (101) to fix it, and pull the spring (104) to be in the stretched state; when the linear motor (1) needs to move again, the ventilation channel (105) is ventilated, the clamping block (103) returns to its original position under the action of the spring (104) tension, and the linear motor mover (101) starts to move up and down again.

3. The floating roof of a multi-powered flexible device for dispersing power within an oil tank according to claim 1, characterized in that: The side of the floating disk (3) is provided with a T-shaped groove for installing the floating disk sealing unit (4); the four through holes on the floating disk (3) are evenly distributed along the circumference of the floating disk (3), and the flexible device (5) is connected to the through holes by a thread.

4. The floating roof of a multi-powered flexible device for dispersing oil tanks according to claim 1, characterized in that: The flexible device (5) includes a mounting plate (501), a bladder (502), and eight second hexagon socket screws (503). The mounting plate (501) has eight small holes, and the bladder (502) also has eight small holes. The second hexagon socket screws (503) pass through the small holes of the mounting plate (501) and the small holes of the bladder (502) and are connected to the floating plate (3). The mounting plate (501) and the bladder (502) are fixed on the floating plate (3) by tightening the second hexagon socket screws (503) to achieve a seal.

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