Drainage equipment for floating roof storage tank

Abstract

The utility model discloses drainage equipment for a floating roof storage tank, and belongs to the technical field of drainage of floating roof tanks. Comprising a tank body and a floating disc, water channels are formed in the lower ends of the water collecting pits, water pipes penetrating through the lower portion of the tank body are arranged below the ends, away from the water collecting pits, of the water channels, and auger blades for driving water from one ends of the water collecting pits to one ends of the water pipes are arranged in the multiple water channels respectively; the auger blade is arranged in the water channel, so that when water enters the water pipe through the water channel and is discharged, the auger blade is rotated to pressurize the water, and the water channel and the water pipe can be prevented from being blocked.

Description

Technical Field

[0001] The utility model provides drainage equipment for a floating roof storage tank, belonging to the technical field of floating roof tank drainage. Background Art

[0002] A floating roof tank is a special large-scale storage tank, mainly used to store volatile liquids. It is characterized by a floating roof on the top that floats up and down with the changes in the liquid level in the tank, effectively reducing volatile losses and environmental pollution. Floating roof tanks are divided into two types: internal floating roof and external floating roof. Internal floating roof tanks have a floating roof inside a fixed roof, while external floating roof tanks are directly exposed to the atmosphere.

[0003] Currently, external floating roof storage tanks mainly rely on central drain pipes and emergency drainage devices for drainage. However, since the floating plate of an external floating roof storage tank is exposed to the open air, dust and other impurities are easily deposited in the drain pipe, causing pipe blockage and affecting drainage efficiency. Once the drain pipe is blocked, water will accumulate on the floating plate. When the water reaches a certain depth, the water will enter the tank through the emergency drainage device and mix with the oil. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the current external floating roof storage tank is easily blocked during drainage.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a drainage device for a floating roof storage tank, comprising a tank body and a floating plate; a plurality of water collection pits are provided at equal angles on the floating plate, a water channel is provided at the lower end of the water collection pit, a water pipe passing through the lower part of the tank body is provided below one end of the water channel away from the water collection pit, and auger blades are respectively provided in the plurality of water channels for driving water from one end of the water collection pit to one end of the water pipe.

[0006] As an improvement, a number of water channels are connected to the axis of the floating plate;

[0007] As an improvement, the auger blades are arranged on the rotating shaft, and the end of the rotating shaft close to the sump and the side close to the axis of the floating plate are rotatably connected to the waterway through a bearing, and the end of the rotating shaft close to the floating plate is provided with a bevel gear 1;

[0008] As an improvement, a protection box is provided above the middle of the floating plate, a battery is provided on the upper part of the protection box, and an electric motor is provided on the lower part. The output shaft of the electric motor passes through the floating plate and a bevel gear 2 is provided at the end thereof, which meshes with a plurality of bevel gears 1.

[0009] As an improvement, a water level monitoring probe is provided on one side of the protection box.

[0010] Beneficial effects of the utility model:

[0011] By arranging auger blades in the waterway, when water enters the water pipe through the waterway and is discharged, rotating the auger blades can achieve the effect of pressurizing the water, thereby preventing the waterway and water pipe from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a structural schematic diagram of a drainage device for a floating roof storage tank.

[0013] Figure 2 This is a cross-sectional view of a floating plate of a drainage device for a floating roof storage tank according to the present invention.

[0014] Figure 3 This is a cross-sectional view of a protection box of a drainage device for a floating roof storage tank according to the present invention.

[0015] 1. Tank body; 2. Float; 3. Sump; 4. Waterway; 5. Water pipe; 6. Auger blade; 7. Rotating shaft; 8. Bevel gear 1; 9. Protective box; 10. Motor; 11. Bevel gear 2; 12. Water level monitoring probe. DETAILED DESCRIPTION

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

[0017] according to Figure 1 As shown in FIG3 , the present invention provides a drainage device for a floating roof storage tank, comprising a tank body 1 and a floating plate 2; a plurality of water collection pits 3 are provided at equal angles on the floating plate 2; a water channel 4 is provided at the lower end of the water collection pit 3; a water pipe 5 passing through the lower portion of the tank body 1 is provided below the end of the water channel 4 away from the water collection pit 3; auger blades 6 are respectively provided in the plurality of water channels 4 to drive water from one end of the water collection pit 3 to one end of the water pipe 5; by providing the auger blades 6 in the water channel 4, when water enters the water pipe 5 through the water channel 4 and is discharged, the rotation of the auger blades 6 can achieve a pressurized effect on the water, thereby preventing the water channel 4 and the water pipe 5 from being blocked;

[0018] according to Figure 1 、 2 As shown: several water channels 4 are connected to the axis position of the floating plate 2; the auger blades 6 are arranged on the rotating shaft 7, and the end of the rotating shaft 7 close to the sump 3 and the side close to the axis of the floating plate 2 are rotatably connected to the water channel 4 through a bearing, and the end of the rotating shaft 7 close to the floating plate 2 is provided with a bevel gear 1 8; a protection box 9 is provided above the middle of the floating plate 2, a battery is provided on the upper part of the protection box 9, and an electric motor 10 is provided at the lower part. The output shaft of the electric motor 10 passes through the floating plate 2 and is provided with a bevel gear 2 11 meshing with several bevel gears 1 8 at the end; in this way, after starting the electric motor 10, the rotating shaft 7 can be driven to rotate under the action of the bevel gear 2 11 and the bevel gear 1 8, thereby driving the auger blades 6 to rotate;

[0019] according to Figure 1 、 23: A water level monitoring probe 12 is provided on one side of the protection box 9; so that when the water level monitoring probe 12 detects a high water level, the motor 10 can be controlled to start, so that the device can be automatically turned on.

[0020] The principle of the present invention is as follows: when in use, when it rains, water will enter the waterway 4 through the sump 3 and then flow out from the water pipe 5. When rainwater accumulates on the floating plate 2, it will be detected by the water level monitoring probe 12. The water level monitoring probe 12 will control the motor 10 to start. Under the action of the bevel gear 2 11 and the bevel gear 1 8, the shaft 7 will rotate, thereby driving the auger blades 6 to rotate. The auger blades 6 can achieve a pressurized effect on the water, thereby preventing the waterway 4 and the water pipe 5 from being blocked.

[0021] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A drainage device for a floating roof storage tank, comprising a tank body (1) and a floating plate (2); characterized in that: A plurality of water collection pits (3) are provided at equal angles on the floating plate (2), a water channel (4) is provided at the lower end of the water collection pit (3), a water pipe (5) passing through the lower part of the tank body (1) is provided below the end of the water channel (4) away from the water collection pit (3), and a plurality of auger blades (6) are provided in each of the water channels (4) to drive water from one end of the water collection pit (3) to one end of the water pipe (5).

2. The drainage device for a floating roof storage tank according to claim 1, characterized in that: The plurality of water channels (4) are connected to the axial position of the floating plate (2).

3. The drainage device for a floating roof storage tank according to claim 2, characterized in that: The auger blades (6) are arranged on a rotating shaft (7). The end of the rotating shaft (7) close to the sump (3) and the side close to the axis of the floating plate (2) are rotatably connected to the waterway (4) through a bearing, and the end of the rotating shaft (7) close to the floating plate (2) is provided with a bevel gear (8).

4. The drainage device for a floating roof storage tank according to claim 3, characterized in that: A protection box (9) is provided above the middle of the floating plate (2), a battery is provided on the upper portion of the protection box (9), and an electric motor (10) is provided on the lower portion. The output shaft of the electric motor (10) passes through the floating plate (2) and is provided at the end with a bevel gear 2 (11) that meshes with a plurality of bevel gears 1 (8).

5. The drainage device for a floating roof storage tank according to claim 4, characterized in that: A water level monitoring probe (12) is provided on one side of the protection box (9).

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