Flexible piston servo electric direct drive type full liquid contact inner floating disc device for storage tank

Abstract

A kind of flexible piston servo electric direct drive type full liquid inner floating disc device for storage tank, including storage tank device, servo electric direct drive device and flexible piston type floating disc device three parts, wherein storage tank device inside is equipped with servo electric direct drive device and flexible piston type floating disc device together, servo electric direct drive device below is flexible piston type floating disc device.Working process, can be driven by servo electric direct drive device II flexible piston type floating disc device III up and down movement, while using inlet valve to fill in the closed cavity of servo electric direct drive device and flexible piston type floating disc device with the nitrogen of 5Mpa pressure, then nitrogen fills up the upper side of skin bag by inlet, so that skin bag can be closely attached to the liquid level of the liquid stored, to keep liquid and atmosphere isolated, reduce the evaporation of liquid in storage tank.

Description

Technical Field

[0001] This invention relates to the field of internal floating roof technology, specifically to a flexible piston servo-driven, fully liquid-contact internal floating roof device for storage tanks. Background Technology

[0002] Floating roofs are crucial components in tanks used to store large quantities of liquids (such as oil and chemicals). Their primary function is to ensure the safety of the stored liquids, reduce evaporation and environmental pollution, and provide controllable tank capacity. Located above the liquid surface, the floating roof creates a sealed space. As the liquid level rises or falls, the floating roof rises and falls with the liquid, always remaining above the liquid surface, thus limiting contact between the liquid and the atmosphere. This effectively reduces evaporation and prevents external impurities from entering, maintaining the purity of the stored liquid. Simultaneously, the floating roof prevents harmful gases (such as volatile organic compounds) from being released into the atmosphere, reducing air pollution. In the event of a fire or other accident, the floating roof protects the combustion zone, effectively preventing its spread. Furthermore, the modular design of the floating roof facilitates manufacturing, transportation, assembly, and installation, significantly shortening the commissioning cycle. Its high buoyancy, stability, and resistance to tilting and jamming allow multiple people to walk on it. Floating roofs, with their excellent anti-evaporation properties, media compatibility, and suitability for daily operations, have become the most widely used method for storing volatile liquid media.

[0003] Floating roof technology for storage tanks has undergone continuous improvement and development over the past few decades. Currently, the floating roofs used in my country are mostly steel and aluminum. Each of these materials has its advantages and disadvantages: steel floating roofs offer superior safety and environmental friendliness during liquid storage, but have certain shortcomings in meeting production operation requirements; aluminum floating roofs effectively meet the actual requirements of production operation, but are deficient in safety and environmental protection. With continuous technological development and increasing public awareness of environmental protection, composite material floating roofs have emerged, ushering in a new stage in the development of floating roof production. Composite material floating roofs use glass fiber reinforced plastic instead of stainless steel and aluminum alloy. The resulting composite material floating roofs can be fully wetted by liquid, and the composite material also has good corrosion resistance and durability, meeting production environmental protection and safety requirements. Furthermore, as lightweight floating roofs, composite material floating roofs can well meet production and operation needs; however, composite material floating roofs are more expensive and cannot be immediately put into production. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing devices, the present invention aims to provide a flexible piston servo electric direct drive fully liquid-contact internal floating roof device for storage tanks, which can effectively isolate the liquid inside the storage tank from the atmosphere and provide controllable tank capacity to meet production and operation needs.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A flexible piston servo-electric direct-drive fully liquid-contact internal floating roof device for storage tanks includes three parts: storage tank device I, servo-electric direct-drive device II, and flexible piston floating roof device III. The servo-electric direct-drive device II and the flexible piston floating roof device III are installed inside the storage tank device I and work together with it. The flexible piston floating roof device III is located below the servo-electric direct-drive device II.

[0007] The storage tank device I includes a storage tank 1. An exhaust valve 5 and an intake valve 6 are respectively installed on the outer side of the middle part of the storage tank 1. An oil drain valve 15 is installed below the exhaust valve 5, and an oil inlet valve 16 is installed below the intake valve 6.

[0008] The servo-electric direct drive device II includes a piston-type linear motor mover 2 capable of moving up and down. A motor stator 3 is mounted on the side of the piston-type linear motor mover 2, and a motor bracket 4 is provided below the motor stator 3. The motor bracket 4 is fixed to the inner wall of the storage tank 1. The lower end of the piston-type linear motor mover 2 is fixedly connected to the upper brake disc 10 in the flexible piston-type floating device III. In this way, the servo-electric direct drive device II can drive the flexible piston-type floating device III to move up and down. When it moves to the set position, the small motor 17 in the flexible piston-type floating device III drives the gear 9 to rotate, which in turn drives the elbow arm 8 to rotate the brake pad 7 outward. When the brake pad 7 is in close contact with the inner wall of the storage tank 1, the position of the flexible piston-type floating device III is fixed. Nitrogen gas 18 at a pressure of 5 MPa is introduced into the closed cavity composed of the servo electric direct drive device II and the flexible piston floating device III using the air inlet valve 6. The nitrogen gas 18 fills the upper side of the bladder 14 through the air inlet 12, so that the bladder 14 can be tightly attached to the liquid surface of the stored liquid, keeping the liquid isolated from the atmosphere and reducing the evaporation of the liquid in the storage tank.

[0009] The flexible piston floating disc device III includes a brake pad 7, which is connected to an elbow arm 8. An upper brake disc 10 is installed on the lower side of the elbow arm 8. The upper brake disc 10 is connected to the bottom of the piston linear motor mover 2. A gear 9 is installed above the bottom of the piston linear motor mover 2. An air inlet 12 is located at the bottom of the piston linear motor mover 2. A lower brake disc 11 is installed on the outside of the upper brake disc 10. A fixing ring 13 is installed on the outside of the lower brake disc. A bladder 14 is fixedly connected to the fixing ring 13.

[0010] Compared with the prior art, the present invention provides a flexible piston servo electric direct drive fully liquid-contact internal floating roof device for storage tanks, which can effectively isolate the liquid inside the storage tank from the atmosphere and provide controllable tank capacity to meet production and operation needs. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the storage tank device of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the servo electric direct drive device II of the present invention.

[0014] Figure 4 This is a schematic diagram of the flexible piston-type floating roof device III of the present invention.

[0015] Figure 5 This is a diagram showing the location of the small motor. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Reference Figure 1 A flexible piston servo-electric direct-drive fully liquid-contact internal floating roof device for storage tanks includes three parts: storage tank device I, servo-electric direct-drive device II, and flexible piston floating roof device III. The servo-electric direct-drive device II and the flexible piston floating roof device III are installed inside the storage tank device I and work together with it. The flexible piston floating roof device III is located below the servo-electric direct-drive device II.

[0018] Reference Figure 1 and Figure 2 The storage tank device I includes a storage tank 1. An exhaust valve 5 and an intake valve 6 are respectively installed on the outer side of the middle part of the storage tank 1. An oil drain valve 15 is installed below the exhaust valve 5, and an oil inlet valve 16 is installed below the intake valve 6.

[0019] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5The servo-electric direct drive device II includes a piston-type linear motor mover 2 capable of moving up and down. A motor stator 3 is mounted on the side of the piston-type linear motor mover 2, and a motor bracket 4 is provided below the motor stator 3. The motor bracket 4 is fixed to the inner wall of the storage tank 1. The lower end of the piston-type linear motor mover 2 is fixedly connected to the upper brake disc 10 in the flexible piston-type floating device III. In this way, the servo-electric direct drive device II can drive the flexible piston-type floating device III to move up and down. When it moves to the set position, the small motor 17 in the flexible piston-type floating device III drives the gear 9 to rotate, which in turn drives the elbow arm 8 to rotate the brake pad 7 outward. When the brake pad 7 is in close contact with the inner wall of the storage tank 1, the position of the flexible piston-type floating device III is fixed. Nitrogen gas 18 at a pressure of 5 MPa is introduced into the closed cavity composed of the servo electric direct drive device II and the flexible piston floating device III using the air inlet valve 6. The nitrogen gas 18 fills the upper side of the bladder 14 through the air inlet 12, so that the bladder 14 can be tightly attached to the liquid surface of the stored liquid, keeping the liquid isolated from the atmosphere and reducing the evaporation of the liquid in the storage tank.

[0020] Reference Figure 1 and Figure 4 The flexible piston floating disc device III includes a brake pad 7, which is connected to an elbow arm 8. An upper brake disc 10 is installed on the lower side of the elbow arm 8. The upper brake disc 10 is connected to the bottom of the piston linear motor mover 2. A gear 9 is installed above the bottom of the piston linear motor mover 2. An air inlet 12 is located at the bottom of the piston linear motor mover 2. A lower brake disc 11 is installed on the outside of the upper brake disc 10. A fixing ring 13 is installed on the outside of the lower brake disc. A bladder 14 is fixedly connected to the fixing ring 13.

[0021] The working principle of this invention is as follows: The servo-electric direct drive device II includes a piston-type linear motor mover 2 capable of moving up and down. The piston-type linear motor mover 2 is fixedly connected to the brake disc 10 in the flexible piston-type floating device III. Thus, the servo-electric direct drive device II can drive the flexible piston-type floating device III to move up and down. When it moves to the set position, the small motor 17 in the flexible piston-type floating device III drives the gear 9 to rotate, which in turn drives the elbow arm 8 to rotate the brake pad 7 outward. When the brake pad 7 is in close contact with the inner wall of the storage tank 1, the flexible piston-type floating device III is fixed at this set position. Nitrogen gas 18 at a pressure of 5 MPa is introduced through the air inlet valve 6. The nitrogen gas 18 fills the upper side of the bladder 14 through the air inlet 12, so that the bladder 14 can be tightly attached to the liquid surface of the stored liquid, keeping the liquid isolated from the atmosphere and reducing the evaporation of the liquid in the storage tank.

Claims

1. A flexible piston servo-electric direct-drive fully liquid-contact internal floating roof device for a storage tank, comprising three parts: a storage tank device I, a servo-electric direct-drive device II, and a flexible piston floating roof device III. The storage tank device I houses the servo-electric direct-drive device II and the flexible piston floating roof device III, which are installed together. The flexible piston floating roof device III is located below the servo-electric direct-drive device II. The storage tank device I includes a storage tank (1), with an exhaust valve (5) and an intake valve (6) installed on the outer side of the middle portion of the storage tank (1). The servo-electric direct-drive device II includes a piston-type linear motor mover (2) capable of vertical movement. A motor stator (3) is mounted on the side of the piston-type linear motor mover (2), and a [missing information - likely a device name] is located below the motor stator (3). A motor bracket (4) is provided, which is fixed to the inner wall of the storage tank (1); the flexible piston floating device III includes a brake pad (7), which is connected to an elbow arm (8), and an upper brake disc (10) is installed on the lower side of the elbow arm (8). The upper brake disc (10) is connected to the bottom of the piston linear motor mover (2). A gear (9) is installed above the bottom of the piston linear motor mover (2). The bottom of the piston linear motor mover (2) has an air inlet (12). A lower brake disc (11) is installed on the outside of the upper brake disc (10). A fixing ring (13) is installed on the outside of the lower brake disc (11). A bladder (14) is fixed on the fixing ring (13). The servo electric direct drive device II drives the flexible piston floating device III to move up and down. When it moves to the set position, the small motor (17) in the flexible piston floating device III drives the gear (9) to rotate, which in turn drives the elbow arm (8) to rotate the brake pad (7) outward. When the brake pad (7) is in close contact with the inner wall of the storage tank (1), the position of the flexible piston floating device III is fixed. The air inlet valve (6) is used to fill the closed cavity composed of the servo electric direct drive device II and the flexible piston floating device III with nitrogen gas (18) at a pressure of 5 MPa. The nitrogen gas (18) fills the upper side of the bladder (14) through the air inlet (12), so that the bladder (14) can be tightly attached to the liquid surface of the stored liquid, keeping the liquid isolated from the atmosphere and reducing the evaporation of the liquid in the storage tank.

2. The flexible piston servo-driven direct-drive fully liquid-contact internal floating disk device for storage tanks according to claim 1, characterized in that: An oil drain valve (15) is installed on the lower side of the exhaust valve (5), and an oil inlet valve (16) is installed on the lower side of the intake valve (6).

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