In-tank air replacement device for tank type transport vehicle

Abstract

The utility model relates to the field of transport vehicles, in particular to an in-tank air replacement device for a tank type transport vehicle, which comprises a plastic manhole cover, a square elbow and a tank body, the square elbow is mounted on the tank body through the plastic manhole cover and is communicated with the tank body, an air outlet is formed in one end of the tank body, and an air inlet is formed in the other end of the tank body. A plastic manhole cover is arranged in the middle of the plastic manhole cover, a square elbow is arranged in the plastic manhole cover, a reducing pipe is arranged at the end, away from the plastic manhole cover, of the square elbow, and an axial flow fan is arranged between the reducing pipe and the square elbow. The plastic manhole cover, the square elbow, the reducing pipe, the axial flow fan and other components are arranged, and the plastic manhole cover, the square elbow and the axial flow fan are matched with one another, so that the service life of the plastic manhole cover is prolonged, and the service life of the plastic manhole cover is prolonged. The structural design is improved, after a vehicle is unloaded, an axial flow fan part on the front tank cover is opened, fresh air is actively guided into the tank body from the front tank opening, positive pressure is formed in the tank body, residual air in the tank is exhausted from the rear air outlet, oxidation corrosion of the residual air to a liner in the tank is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transport vehicles, in particular to an air replacement device in a tank of a tank transport vehicle. Background Art

[0002] A tank truck is a transport vehicle with a tank-shaped body, used to transport various liquids, liquefied gases and powdered goods, including gasoline, crude oil, various viscous oils, vegetable oils, liquid ammonia, alcohol, water, various acidic and alkaline liquids, cement lead oxide powder, etc. The materials inside the tank are generally highly corrosive to the tank.

[0003] After searching, a Chinese patent with the announcement number CN216942852U discloses a bulletproof toxic and infectious material tank transport vehicle, which includes a chassis and a front, a tank body and an operating compartment are installed on the top of the chassis, and the operating compartment is installed on the side of the tank body away from the front of the vehicle, and bulletproof steel plates are installed around the tank body and the operating compartment, and a subframe is installed on the top of the chassis, and the bulletproof steel plate is fixedly connected to the subframe through a connecting bracket. The utility model can realize a toxic and infectious material tank transport vehicle protected by 7.62mm ordinary steel core bullets, which is used to ensure the safety of the vehicle when performing special tasks that are easily targeted by terrorists.

[0004] However, the common method now is to passively release the gas in the tank by opening the tank cover, which has little effect and a short service life of the product. In order to solve the problem of accelerated aging and lining cracking of the tank lining caused by liquid cargo with oxidizing properties, an air replacement device for the tank of a tank transport vehicle has been developed. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the shortcomings and defects of short product service life.

[0006] The utility model discloses an air replacement device in a tank of a tank transport vehicle, comprising a plastic manhole cover, a right-angle elbow, and a tank body, wherein the right-angle elbow is installed on the tank body through the plastic manhole cover, the right-angle elbow is communicated with the tank body, an air outlet is arranged at one end of the tank body, a reducer is arranged at one end of the right-angle elbow away from the plastic manhole cover, an axial flow fan is arranged between the reducer and the right-angle elbow, and a filtering mechanism is arranged on the inner side of the reducer.

[0007] Furthermore, the reducer is tapered, and the diameter of the reducer away from the right-angle elbow is larger than the diameter of the reducer connected to the right-angle elbow.

[0008] Furthermore, the filtering mechanism includes a mounting ring, which is fixedly mounted on the inner wall of the reducer. A fixing plate is provided on the side of the reducer away from the right-angle elbow. A filter net is provided between the fixing plate and the mounting ring. The fixing plate and the mounting ring are connected by a fixing member.

[0009] Furthermore, the fixing part includes a fixing bolt, one end of which is fixedly installed on the mounting ring, a fixing hole 1 is provided on the filter screen, a fixing hole 2 is provided on the fixing plate, one end of the fixing bolt passes through the fixing hole 1 and the fixing hole 2, and a fixing cap is provided on the fixing bolt.

[0010] Furthermore, a plurality of the fixing bolts are provided, the plurality of the fixing bolts are evenly distributed, and at least two of the fixing bolts are provided.

[0011] Furthermore, the first fixing hole and the second fixing hole are both provided with a "U" shape, and the first fixing hole and the second fixing hole are clearance-matched with the fixing bolt.

[0012] Furthermore, the reducer and the air outlet are both arranged at the uppermost end of the tank body, and the axis of the reducer is arranged horizontally.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a plastic manhole cover, a right-angle elbow, a reducer, an axial flow fan and other components. The plastic manhole cover, the right-angle elbow and the axial flow fan cooperate with each other to improve the structural design. After the vehicle has unloaded the goods, the axial flow fan component on the front tank cover is opened, so that new air is actively introduced into the tank body from the front tank opening, so that positive pressure is formed in the tank body, and the residual air in the tank is discharged from the rear air outlet, thereby reducing the oxidation corrosion of the residual air on the tank lining and extending the service life.

[0015] 2. The utility model is provided with fixing bolts, fixing caps, filter nets and other components. During operation, the fixing plate component and the mounting ring component cooperate with each other to clamp the filter net, and the fixing bolt component and the fixing cap component cooperate with each other to fix the position between the fixing plate component and the mounting ring component, thereby achieving the effect of fixing the filter net, and the filter net can prevent external impurities from entering the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the right-angle elbow of the utility model;

[0020] Figure 4 It is a top view of the utility model;

[0021] Figure 5 It is a partial explosion schematic diagram of the utility model.

[0022] In the figure: 1. Plastic manhole cover; 2. Right-angle elbow; 3. Reducer; 4. Axial flow fan; 5. Tank body; 6. Mounting ring; 7. Fixing bolt; 8. Filter screen; 9. Fixing hole 1; 10. Fixing plate; 11. Fixing hole 2; 12. Fixing cap. DETAILED DESCRIPTION

[0023] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model discloses an air replacement device for a tank in a tank transport vehicle, comprising a plastic manhole cover 1, a right-angle elbow 2, and a tank body 5. The right-angle elbow 2 is installed on the tank body 5 through the plastic manhole cover 1, the right-angle elbow 2 is connected to the tank body 5, an air outlet is arranged at one end of the tank body 5, a reducer 3 is arranged at the end of the right-angle elbow 2 away from the plastic manhole cover 1, the reducer 3 and the air outlet are both arranged at the uppermost end of the tank body 5, the axis of the reducer 3 is arranged horizontally, an axial flow fan 4 is arranged between the reducer 3 and the right-angle elbow 2, and a filtering mechanism is arranged on the inner side of the reducer 3.

[0025] During the working process, the axial flow fan 4 is controlled to work, and the axial flow fan 4 introduces external air into the tank body 5 through the reducer 3 and the right-angle elbow 2, and discharges the internal gas through the air outlet at the other end of the tank body 5, so as to reduce the oxidation corrosion of the tank lining by the residual gas in the tank body 5 and extend the service life.

[0026] like Figure 3 , Figure 4As shown, the reducer 3 is set in a conical shape, and the diameter of the reducer 3 away from the right-angle elbow 2 is larger than the diameter of the reducer 3 connected to the right-angle elbow 2. The main function of the reducer 3 is to convert the high-speed airflow into a stable flow state. In the pipeline system, after the high-speed fluid passes through the tapered pipe, the flow velocity slows down and the flow state tends to be stable.

[0027] like Figure 2 , Figure 5 As shown, the filtering mechanism includes a mounting ring 6, which is fixedly mounted on the inner wall of the reducer 3. A fixing plate 10 is provided on the side of the reducer 3 away from the right-angle elbow 2. A filter screen 8 is provided between the fixing plate 10 and the mounting ring 6. The fixing plate 10 and the mounting ring 6 are connected by a fixing member. The filter screen 8 is clamped by the mounting ring 6 and the fixing plate 10 to fix the position of the filter screen 8. The air inlet of the reducer 3 is filtered and shielded by the filter screen 8 to prevent impurities from entering the tank body 5.

[0028] like Figure 5 As shown, the fixing part includes a fixing bolt 7, one end of which is fixedly installed on the mounting ring 6, a fixing hole 19 is provided on the filter screen 8, a fixing hole 2 11 is provided on the fixing plate 10, one end of the fixing bolt 7 passes through the fixing hole 1 9 and the fixing hole 2 11, and a fixing cap 12 is provided on the fixing bolt 7. The fixing plate 10 and the filter screen 8 can be conveniently positioned by the fixing bolt 7. The staff can remove the fixing cap 12 from the fixing bolt 7 to release the fixation of the fixing plate 10 and the filter screen 8, and can remove the filter screen 8 for replacement or cleaning.

[0029] In this embodiment, a plurality of fixing bolts 7 are provided, and the plurality of fixing bolts 7 are evenly distributed. At least two fixing bolts 7 are provided. When the filter screen 8 is clamped and fixed, the fixing plate 10 can be evenly stressed on all sides through the plurality of evenly distributed fixing bolts 7, thereby improving the stability of the fixing plate 10 and the mounting ring 6 when being fixed, preventing the fixing plate 10 from shaking and falling off, and achieving the effect of improving the safety of the device.

[0030] In this embodiment, the fixing hole 1 9 and the fixing hole 2 11 are both provided with a "U" shape, and the gap between the fixing hole 1 9 and the fixing hole 2 11 and the fixing bolt 7 is matched. When the fixing plate 10 and the filter screen 8 are fixedly installed, it is convenient for the staff to pass the fixing bolt 7 between the fixing hole 1 9 and the fixing hole 2 11, thereby achieving the purpose of improving the installation work efficiency.

[0031] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An air replacement device in a tank of a tank transport vehicle, comprising a plastic manhole cover (1), a right-angle elbow (2), and a tank body (5), characterized in that: The right-angle elbow (2) is installed on the tank body (5) through the plastic manhole cover (1); the right-angle elbow (2) is connected to the tank body (5); an air outlet is arranged at one end of the tank body (5); a reducer (3) is arranged at one end of the right-angle elbow (2) away from the plastic manhole cover (1); an axial flow fan (4) is arranged between the reducer (3) and the right-angle elbow (2); and a filtering mechanism is arranged on the inner side of the reducer (3).

2. The air replacement device in a tank of a tank transport vehicle according to claim 1, characterized in that: The reducer (3) is arranged in a conical shape, and the diameter of the reducer (3) away from the right-angle elbow (2) is larger than the diameter of the reducer (3) connected to the right-angle elbow (2).

3. The air replacement device in a tank of a tank transport vehicle according to claim 1, characterized in that: The filtering mechanism comprises a mounting ring (6), wherein the mounting ring (6) is fixedly mounted on the inner wall of the reducer (3), a fixing plate (10) is arranged on the side of the reducer (3) away from the right-angle elbow (2), a filtering net (8) is arranged between the fixing plate (10) and the mounting ring (6), and the fixing plate (10) and the mounting ring (6) are connected via a fixing member.

4. The air replacement device in a tank of a tank transport vehicle according to claim 3, characterized in that: The fixing member comprises a fixing bolt (7), one end of which is fixedly mounted on the mounting ring (6), the filter screen (8) is provided with a fixing hole 1 (9), the fixing plate (10) is provided with a fixing hole 2 (11), one end of the fixing bolt (7) passes through the fixing hole 1 (9) and the fixing hole 2 (11), and the fixing bolt (7) is provided with a fixing cap (12).

5. The air replacement device in a tank of a tank transport vehicle according to claim 4, characterized in that: A plurality of the fixing bolts (7) are provided, the plurality of the fixing bolts (7) are evenly distributed, and at least two of the fixing bolts (7) are provided.

6. The air replacement device in a tank of a tank transport vehicle according to claim 4, characterized in that: The fixing hole 1 (9) and the fixing hole 2 (11) are both arranged in a "U" shape, and a clearance fit is formed between the fixing hole 1 (9) and the fixing hole 2 (11) and the fixing bolt (7).

7. The air replacement device in a tank of a tank transport vehicle according to claim 1, characterized in that: The reducer (3) and the air outlet are both arranged at the uppermost end of the tank body (5), and the axis of the reducer (3) is arranged horizontally.

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