Protective device for airport apron refueling pipeline stand pipe

Abstract

The utility model discloses a protective device for a riser of an airport refueling pipeline, which relates to the technical field of airport equipment and comprises a refueling bolt protective cylinder and a riser protective sleeve positioned below the refueling bolt protective cylinder. A well cover is arranged at the top of the refueling bolt protection cylinder, and a through hole allowing a vertical pipe to pass through is formed in the center of the bottom of the refueling bolt protection cylinder; the outer wall of the refueling bolt protection cylinder is fixedly connected with the airport apron pavement structure, and a safety space for refueling bolt installation is formed between the interior of the refueling bolt protection cylinder and the well lid. The stand pipe protection sleeve is arranged on the peripheral side of the stand pipe in a surrounding mode, the inner diameter of the stand pipe protection sleeve is larger than the outer diameter of the stand pipe, and the space between the stand pipe protection sleeve and the stand pipe is filled with fine sand. Through the arrangement of the stand pipe protection sleeve, a safe space is provided for the stand pipe, and the stand pipe is prevented from being damaged due to deformation and displacement of the airport apron pavement structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of airport equipment, and in particular relates to a standpipe protection device for an apron refueling pipeline. Background Art

[0002] The construction of apron refueling pipelines is an important part of civil aviation professional projects. In previous construction, due to the frequent overlap with other engineering construction, the protection of the refueling hydrant risers has always been a difficult and stubborn problem in construction.

[0003] The existing technology generally extends the riser out of the structural layer of the airport pavement and installs guardrails for protection. However, even with the installation of guardrails, it is often impossible to prevent the fuel hydrant riser from being completely broken or even snapped by collisions with nearby vehicles and machinery, increasing the cost of subsequent construction and maintenance, and posing a safety hazard.

[0004] Chinese invention patent CN201510925294.3 discloses a protective device for cement concrete pavement underground well equipment. The protective device comprises a separate inner and outer protective structures. The inner protective structure is fixedly connected to the underground well equipment. The outer protective structure is placed around the inner protective structure and is coaxial with the inner protective structure. The distance between the outer side of the inner protective structure and the inner side of the outer protective structure is 8-12 cm, and the distance between the top of the inner protective structure and the bottom of the sealing surface of the outer protective structure is 6-12 cm. This device solves the problem of the riser extending beyond the structural layer of the airport pavement in the prior art. However, the outer wall of the refueling pipeline riser is in direct contact with the upper and lower cement concrete base layers. Deformation and displacement of the upper and lower cement concrete base layers can also damage the refueling pipeline riser. Utility Model Content

[0005] The utility model aims to provide a protective device for an apron refueling pipeline riser, so as to solve the problem that the refueling pipeline riser is easily damaged in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for protecting a riser pipe of an apron refueling pipeline comprises a refueling hydrant protection cylinder and a riser pipe protection sleeve located below the refueling hydrant protection cylinder; a manhole cover is provided on the top of the refueling hydrant protection cylinder, and a through hole is provided at the center of the bottom of the refueling hydrant protection cylinder to allow the riser pipe to pass through; the outer wall of the refueling hydrant protection cylinder is fixedly connected to the apron pavement structure, and a safe space for installing the refueling hydrant is formed between the interior of the refueling hydrant protection cylinder and the manhole cover; the riser pipe protection sleeve is arranged around the circumference of the riser pipe, and the inner diameter of the riser pipe protection sleeve is larger than the outer diameter of the riser pipe, and the space between the riser pipe protection sleeve and the riser pipe is filled with fine sand.

[0008] Optionally, the refueling hydrant and the standpipe are connected via a flange.

[0009] Optionally, the riser protection sleeve is a corrugated tube.

[0010] Optionally, the outer diameter of the standpipe protection sleeve is smaller than the outer diameter of the fuel hydrant protection cylinder, and the fuel hydrant protection cylinder and the standpipe protection sleeve are located on the same axial line.

[0011] Optionally, a first boss is provided on the top of the refueling hydrant protection cylinder, and a second boss is provided on the bottom of the refueling hydrant protection cylinder; the first boss and the second boss are both inserted into the apron pavement structure.

[0012] Optionally, a first concrete casing is further provided around the circumference of the riser protection casing; the inner diameter of the first concrete casing is larger than the maximum outer diameter of the fuel hydrant protection tube, the top of the first concrete casing is flush with the top of the second boss, and the bottom of the first concrete casing is located between the bottom of the fuel hydrant protection tube and the bottom of the riser protection casing.

[0013] Optionally, a second concrete casing is further provided on the top of the apron pavement structure, the second concrete casing is arranged along the circumference of the refueling hydrant protection cylinder, and the refueling hydrant protection cylinder is located inside the second concrete casing.

[0014] Beneficial effect: This practical information apron refueling pipeline riser protection device

[0015] (1) A riser protection sleeve is installed around the riser, and the space between the riser and the riser protection sleeve is filled with fine sand, providing a safe space for the riser to prevent the riser from being damaged by deformation and displacement of the apron pavement structure;

[0016] (2) A first concrete casing is also provided around the riser protection casing. The first concrete casing can increase the bearing capacity of the apron pavement structure and can bear part of the pressure of the upper structure layer, thereby reducing the stress on the fuel hydrant protection tube and the riser protection casing;

[0017] (3) A second concrete casing is provided on the top of the apron pavement structure. The second concrete casing is provided along the circumference of the fuel hydrant protection cylinder, and the fuel hydrant protection cylinder is located inside the second concrete casing. The second concrete casing prevents the riser from being squeezed by the machinery on the apron.

[0018] Through the coordination of the riser protection sleeve, the first concrete sleeve and the second concrete sleeve, the riser is protected to the maximum extent, preventing the riser from being squeezed and damaged, and reducing subsequent construction and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the apron refueling pipeline standpipe protection device in the embodiment.

[0020] In the figure: 1. Fuel hydrant protection tube; 11. First boss; 12. Second boss; 2. Standpipe protection casing; 3. Manhole cover; 4. Aerodrome pavement structure; 5. Fuel hydrant; 6. Standpipe; 7. First concrete casing; 8. Second concrete casing. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0022] In the description of this utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this utility model; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0023] In the description of this utility model, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0024] Example

[0025] like Figure 1 As shown, this embodiment provides an apron refueling pipeline standpipe protection device, including a refueling hydrant protection cylinder 1 and a standpipe protection sleeve 2 located below the refueling hydrant protection cylinder 1; a manhole cover 3 is provided on the top of the refueling hydrant protection cylinder 1, and a through hole allowing the standpipe 6 to pass through is provided at the center of the bottom of the refueling hydrant protection cylinder 1; the outer wall of the refueling hydrant protection cylinder 1 is fixedly connected to the apron pavement structure 4, and a safe space for installing the refueling hydrant 5 is formed between the inside of the refueling hydrant protection cylinder 1 and the manhole cover 3; the standpipe protection sleeve 2 is arranged around the circumference of the standpipe 6, and the inner diameter of the standpipe protection sleeve 2 is larger than the outer diameter of the standpipe 6, and the space between the standpipe protection sleeve 2 and the standpipe 6 is filled with fine sand.

[0026] Specifically, the apron pavement structure 4 of this embodiment comprises, from bottom to top, a fine sand layer, a lime soil layer, a water-stable layer, and a cement concrete layer. The fuel hydrant protection tube 1 is disposed between the water-stable layer and the cement concrete layer, and the riser protection sleeve 2 is disposed between the lime soil layers. The bottom of the riser protection sleeve 2 is a fine sand layer, and the main fueling pipeline is located between the fine sand layers. The riser 6 extends from the main fueling pipeline, passes through the riser protection sleeve 2 and the fuel hydrant protection tube 1 in sequence, reaches the safe space inside the fuel hydrant protection tube 1, and connects to the fuel hydrant 5.

[0027] By setting up the riser protection sleeve 2, the riser 6 is isolated from the apron pavement structure 4, preventing the riser 6 from being damaged by the deformation and displacement of the apron pavement structure 4; and the space between the riser protection sleeve 2 and the riser 6 is filled with fine sand. By filling the space with fine sand, the internal space between the riser protection sleeve 2 and the riser 6 is compacted, thereby increasing the compressive resistance of the riser protection sleeve 2 and further protecting the riser 6.

[0028] In an optional embodiment, the refueling hydrant 5 and the standpipe 6 are connected by a flange; specifically, the bottom of the refueling hydrant 5 is welded to the upper flange, the top of the standpipe 6 is welded to the lower flange, the upper flange and the lower flange are connected and fixed by a hexagonal nut, and a gasket can also be provided between the upper flange and the lower flange to increase the sealing between the upper flange and the lower flange.

[0029] In an optional embodiment, the riser protection sleeve 2 is a corrugated tube; the provision of the corrugated tube can increase the ability of the riser protection sleeve 2 to resist compression deformation.

[0030] In an optional embodiment, the outer diameter of the standpipe protection sleeve 2 is smaller than the outer diameter of the fuel hydrant protection cylinder 1, and the fuel hydrant protection cylinder 1 and the standpipe protection sleeve 2 are located on the same axial line; specifically, the standpipe protection sleeve 2 and the fuel hydrant protection cylinder 1 are connected by welding, and the thickness of the fuel hydrant protection cylinder 1 is greater than the thickness of the standpipe protection sleeve 2.

[0031] In an optional embodiment, a first boss 11 is provided on the top of the fuel hydrant protection cylinder 1, and a second boss 12 is provided on the bottom of the fuel hydrant protection cylinder 1; the first boss 11 and the second boss 12 are both inserted into the apron pavement structure 4; specifically, the first boss 11 and the second boss 12 are both arranged along the circumference of the fuel hydrant protection cylinder 1, the first boss 11 is inserted into the cement concrete layer, and the second boss 12 is inserted into the ash soil layer. By setting the first boss 11 and the second boss 12, the stability of the fuel hydrant protection cylinder 1 can be increased.

[0032] In an optional embodiment, a first concrete casing 7 is further provided around the circumference of the riser protection casing 2; the inner diameter of the first concrete casing 7 is larger than the maximum outer diameter of the fuel hydrant protection cylinder 1, the top of the first concrete casing 7 is flush with the top of the second boss 12, and the bottom of the first concrete casing 7 is located between the bottom of the fuel hydrant protection cylinder 1 and the bottom of the riser protection casing 2; specifically, the first concrete casing 7 is located between the ash soil layer and the water-stable layer. By setting the first concrete casing 7, the bearing capacity of the apron pavement structure 4 can be increased, and the first concrete casing 7 can bear part of the pressure of the upper structure layer, thereby reducing the stress on the fuel hydrant protection cylinder 1 and the riser protection casing 2.

[0033] In an optional embodiment, a second concrete casing 8 is further provided on the top of the apron pavement structure 4. The second concrete casing 8 is arranged along the circumference of the fuel hydrant protection cylinder 1, and the fuel hydrant protection cylinder 1 is located inside the second concrete casing 8; specifically, the second concrete casing 8 does not contact the fuel hydrant protection cylinder 1, and the inner diameter of the second concrete casing 8 is much larger than the outer diameter of the fuel hydrant protection cylinder 1. Through the provision of the second concrete casing 8, a safe area is isolated inside the second concrete casing 8 to prevent the riser 6 from being squeezed and damaged by the machines on the apron.

[0034] Working principle: The apron refueling pipeline standpipe protection device of this embodiment is to install the standpipe protection sleeve 2 on the side of the standpipe 6 after the refueling pipeline is laid and backfilled with fine sand, and backfill fine sand between the standpipe protection sleeve 2 and the standpipe 6; then the standpipe 6 is passed through the through hole at the bottom of the refueling hydrant protection cylinder 1, the refueling hydrant protection cylinder 1 is welded to the top of the standpipe 6 protection sleeve, and the refueling hydrant 5 is connected to the standpipe 6 through the flange, so that the refueling hydrant 5 is located in the safe space inside the refueling hydrant protection cylinder 1; continue to lay the ash soil layer. In this embodiment, the second boss 12 of the refueling hydrant protection cylinder 1 is inserted into the ash soil. In the layer, when laying the ash soil layer, it should be ensured that the ash soil layer and the riser protection sleeve 2 and the second boss 12 are filled densely; install the first concrete sleeve 7 on the outside of the ash soil layer; continue to lay the water-stabilizing layer and the cement concrete layer. In this embodiment, a first boss 11 is provided on the gas hydrant protection cylinder 1, and the first boss 11 is inserted into the cement concrete layer. When laying, it should be ensured that the cement concrete layer and the first boss 11 are filled densely, and the top of the cement concrete layer is flush with the top of the gas hydrant protection cylinder 1; finally, build the second concrete sleeve 8 on the top of the cement concrete layer, and cover it with the manhole cover 3.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A device for protecting apron refueling pipeline riser, characterized in that: The invention comprises a fuel hydrant protection cylinder (1) and a standpipe protection sleeve (2) located below the fuel hydrant protection cylinder (1); a manhole cover (3) is provided on the top of the fuel hydrant protection cylinder (1); a through hole for allowing the standpipe to pass through is provided at the center of the bottom of the fuel hydrant protection cylinder (1); the outer wall of the fuel hydrant protection cylinder (1) is fixedly connected to the apron pavement structure (4); a safe space for installing a fuel hydrant (5) is formed between the inside of the fuel hydrant protection cylinder (1) and the manhole cover (3); the standpipe protection sleeve (2) is arranged around the circumference of the standpipe (6), and the inner diameter of the standpipe protection sleeve (2) is larger than the outer diameter of the standpipe (6); and fine sand is filled between the standpipe protection sleeve (2) and the standpipe (6).

2. The apron refueling pipeline standpipe protection device according to claim 1 is characterized in that: The refueling hydrant (5) and the standpipe (6) are connected via a flange.

3. The apron refueling pipeline standpipe protection device according to claim 1 is characterized in that: The riser protection sleeve (2) is a corrugated pipe.

4. The apron refueling pipeline standpipe protection device according to claim 1, characterized in that: The outer diameter of the standpipe protection sleeve (2) is smaller than the outer diameter of the fuel hydrant protection cylinder (1), and the fuel hydrant protection cylinder (1) and the standpipe protection sleeve (2) are located on the same axis.

5. The apron refueling pipeline standpipe protection device according to claim 1 is characterized in that: The top of the refueling hydrant protection cylinder (1) is provided with a first boss (11), and the bottom of the refueling hydrant protection cylinder (1) is provided with a second boss (12); the first boss (11) and the second boss (12) are both inserted into the apron pavement structure (4).

6. The apron refueling pipeline standpipe protection device according to claim 5, characterized in that: A first concrete casing (7) is also provided around the circumference of the riser protection casing (2); the inner diameter of the first concrete casing (7) is greater than the maximum outer diameter of the fuel hydrant protection cylinder (1); the top of the first concrete casing (7) is flush with the top of the second boss (12); and the bottom of the first concrete casing (7) is located between the bottom of the fuel hydrant protection cylinder (1) and the bottom of the riser protection casing (2).

7. The apron refueling pipeline standpipe protection device according to claim 1 is characterized in that: A second concrete casing (8) is also provided on the top of the apron pavement structure (4). The second concrete casing (8) is provided along the circumference of the refueling hydrant protection cylinder (1), and the refueling hydrant protection cylinder (1) is located inside the second concrete casing (8).

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