Liquid entering prevention device for horizontal inner container

Abstract

The utility model relates to the technical field of low-temperature tank trucks, in particular to a horizontal type inner container liquid inlet prevention device which comprises a liquid limiting cover fixedly arranged in an inner container, an inlet of a gas phase pipe is located in the liquid limiting cover, a downward gas inlet channel is arranged at the bottom of the liquid limiting cover, and the axis of the gas phase pipe is perpendicular to the axis of the gas inlet channel. A first liquid limiting plate and a second liquid limiting plate are arranged in the air inlet channel, are perpendicular to the axial direction of the air inlet channel and are distributed at intervals in the axial direction of the air inlet channel, and a zigzag air inlet path is formed between the first liquid limiting plate and the second liquid limiting plate through staggered arrangement; the first notches of the first liquid limiting plate and the second notches of the second liquid limiting plate are arranged in a staggered mode in the vertical direction to form a path similar to a labyrinth, liquid is forced to enter only by changing the direction for multiple times, gas can flexibly pass through gaps of the notches, the balance of the ventilation function and the liquid prevention function is optimized through the staggered layout of the liquid limiting plates, and the ventilation effect is improved. And meanwhile, the design of a traditional complex structure is simplified.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic tank truck technology, specifically to a horizontal inner container liquid-proof device. Background Technology

[0002] Traditional horizontal internal containers often employ a hollow cube structure to enclose the vapor phase tube, with numerous small holes around its perimeter for ventilation. However, this design has significant drawbacks: firstly, the hollow cube requires multi-faceted welding or assembly, resulting in complex and costly manufacturing processes; secondly, the hole layout struggles to balance liquid obstruction with gas flow, allowing liquid to still seep into the vapor phase tube during vigorous shaking. These issues limit the reliability and cost-effectiveness of traditional solutions, necessitating a simplified, lower-cost alternative with superior liquid-proof performance. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a horizontal inner container liquid-proof device, which aims to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a horizontal inner container anti-liquidation device, comprising: a liquid limiting cover fixedly installed inside the inner container, a gas phase pipe inlet located inside the liquid limiting cover, a downward air inlet channel provided at the bottom of the liquid limiting cover, the axis of the gas phase pipe being perpendicular to the axis of the air inlet channel, a first liquid limiting plate and a second liquid limiting plate being provided inside the air inlet channel, the first and second liquid limiting plates being perpendicular to the axial direction of the air inlet channel and being distributed at intervals along the axial direction of the air inlet channel, and the first and second liquid limiting plates being staggered to form a tortuous air inlet path.

[0005] Furthermore, a first gap is formed between the first liquid limiting plate and the air intake channel, and a second gap is formed between the second liquid limiting plate and the air intake channel, with the first gap and the second gap being staggered.

[0006] Furthermore, the first gap is formed between the first liquid limiting plate and the air intake channel, and the second gap is formed between the second liquid limiting plate and the air intake channel.

[0007] Furthermore, both the first and second gaps are elongated gaps, and the direction of the gaps is parallel to the circumference of the inner container.

[0008] The present invention describes a horizontal inner container liquid-proof device, the beneficial effect of which is that the first notch of the first liquid-limiting plate and the second notch of the second liquid-limiting plate are staggered in the vertical direction to form a "maze"-like path, which forces the liquid to change direction multiple times before entering, while the gas can flexibly pass through the gaps. This structure optimizes the balance between ventilation and liquid-proof functions through the staggered layout of the liquid-limiting plates, while simplifying the design of traditional complex structures. Attached Figure Description

[0009] Figure 1 These are schematic diagrams of the front and side views of an embodiment of this utility model.

[0010] Explanation of reference numerals in the attached diagram: 1. Liquid limiting hood; 11. First liquid limiting plate; 12. Second liquid limiting plate; 13. First notch; 14. Second notch; 2. Gas phase tube; 3. Liquid. Detailed Implementation

[0011] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0012] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0013] To further illustrate the principle and structure of this utility model, the preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0014] like Figure 1 As shown, this utility model embodiment provides a horizontal inner container liquid-proof device, including: a liquid-limiting cover 1 fixedly installed inside the inner container, the liquid-limiting cover 1 having an inlet of a gas phase pipe 2, and a downward-extending air inlet channel connected to the bottom of the liquid-limiting cover 1, with the axis of the gas phase pipe 2 perpendicular to the axis of the air inlet channel. A first liquid-limiting plate 11 and a second liquid-limiting plate 12 are fixedly installed at intervals along the axial direction of the air inlet channel, both liquid-limiting plates being perpendicular to the axial direction of the air inlet channel and forming a tortuous air inlet path through staggered arrangement.

[0015] Specifically, the first notch 13 of the first liquid limiting plate 11 and the second notch 14 of the second liquid limiting plate 12 are staggered and do not overlap in the vertical direction, forming a maze-like path. This forces the liquid 3 to change direction multiple times before entering, while the gas can pass through the gaps flexibly. This structure optimizes the balance between ventilation and liquid prevention functions through the staggered layout of the liquid limiting plates, while simplifying the design of traditional complex structures.

[0016] By fixing two staggered liquid limiting plates in the air intake channel, a tortuous air intake path is formed, replacing the traditional porous structure. This simplifies the manufacturing process, reduces costs, and uses the inertia of liquid to block its entry. At the same time, the open gaps prevent blockage, effectively solving the defects of traditional solutions such as low ventilation efficiency, difficult maintenance, and insufficient liquid-proof reliability.

[0017] Furthermore, the first and second gaps 14 are directly formed by the gap between the liquid limiting plate and the inner wall of the air intake channel, without the need for additional openings or complex processing. Specifically, the liquid limiting plate is fixed in the air intake channel by welding or snap-fitting, and a gap of a specific size is reserved between its edge and the inner wall of the channel, thereby forming the gaps.

[0018] Both the first notch 13 and the second notch 14 are elongated notches, extending parallel to the axial direction of the inner container. When the liquid 3 inside the inner container sloshes axially, the liquid surface ripples, forming laterally distributed waves (with crests and troughs perpendicular to the axial direction). The notch extends in the same direction as the wave propagation (axial direction), but its shape is perpendicular to the lateral crest direction of the wave. The liquid 3 must overcome the resistance of the lateral undulations of the wave to enter the notch, while gas can flow directly along the notch direction (axial direction). For example, when the liquid 3 sloshes and generates lateral waves, the long side of the notch is perpendicular to the wave undulation direction, thus reducing the amount of liquid 3 entering the notch when it sloshes.

[0019] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A horizontal inner container liquid-proof device, characterized in that, include: A liquid-limiting hood is fixedly installed inside the inner container. The inlet of the gas phase tube is located inside the liquid-limiting hood. A downward-facing air inlet channel is provided at the bottom of the liquid-limiting hood. The axis of the gas phase tube is perpendicular to the axis of the air inlet channel. A first liquid-limiting plate and a second liquid-limiting plate are fixedly installed inside the air inlet channel. The first and second liquid-limiting plates are perpendicular to the axis of the air inlet channel and are distributed at intervals along the axis of the air inlet channel. The first and second liquid-limiting plates are staggered to form a tortuous air inlet path.

2. The horizontal inner container liquid-proof device according to claim 1, characterized in that, A first gap is formed between the first liquid limiting plate and the air intake channel, and a second gap is formed between the second liquid limiting plate and the air intake channel. The first gap and the second gap are staggered.

3. The horizontal inner container liquid-proof device according to claim 2, characterized in that, The first gap is formed between the first liquid limiting plate and the air intake channel, and the second gap is formed between the second liquid limiting plate and the air intake channel.

4. The horizontal inner container liquid-proof device according to any one of claims 1-3, characterized in that, Both the first and second notches are elongated strip-shaped notches, and the direction of extension of the notches is parallel to the axis of the inner container.

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