Awning of hydrogen refueling station

Abstract

The utility model discloses a hydrogen refueling station awning. The hydrogen refueling station awning comprises supporting columns, a space framework, a ceiling and a suspended ceiling. The four supporting columns are vertically arranged on the ground; the space framework is fixedly connected to the top ends of the supporting columns and provided with a top horizontal net frame face and a bottom horizontal net frame face. The ceiling is arranged on the top horizontal net rack surface and comprises two V-shaped sub-ceilings arranged in the first horizontal direction, and every two adjacent V-shaped sub-ceilings are connected in a sealed mode; each V-shaped sub-ceiling extends horizontally in the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction; the suspended ceiling is arranged on the bottom horizontal net rack face and located on the lower side of the bottom horizontal net rack face, and the suspended ceiling has the gradient with the middle low and the edge high. Due to the fact that the middle of the suspended ceiling is low and the edge of the suspended ceiling is high, hydrogen leaked from a hydrogen refueling machine below the awning of the hydrogen refueling station can move towards the edge of the suspended ceiling along the inclined face of the suspended ceiling in the upward floating process, and therefore the hydrogen is diffused into the atmosphere, hydrogen gathering is prevented, and the safety of the hydrogen refueling station is improved.

Description

Technical Field

[0001] This application relates to the technical field of hydrogen refueling station equipment, and particularly relates to a canopy for a hydrogen refueling station. Background Art

[0002] A hydrogen refueling station is a special place for filling hydrogen fuel into the hydrogen storage cylinders of hydrogen-powered vehicles, hydrogen internal combustion engine vehicles, hydrogen-natural gas hybrid fuel vehicles, etc.

[0003] A hydrogen dispenser is a special device for filling hydrogen into the hydrogen storage cylinders of transportation vehicles and having functions such as control, metering, and pricing. Investigations show that in related technologies, the hydrogen dispensers in existing hydrogen refueling stations all adopt a form with open sides on four sides or three sides and a canopy on the upper part. This approach is beneficial to the diffusion of hydrogen, personnel evacuation, and fire protection, and is also beneficial to the operation of hydrogen refueling for hydrogen-powered vehicles.

[0004] Relevant industry standards clearly stipulate that: "The upper canopy of the hydrogen refueling island and the installation site of the hydrogen dispenser shall comply with the following regulations: 1. The canopy shall be made of non-combustible materials. When the load-bearing member of the canopy is a steel structure, its fire resistance limit shall not be less than 0.25 h; 2. The inner surface of the canopy shall be flat, and the slope shall be towards the outside to prevent the accumulation of hydrogen; 3. When there is an enclosed space at the top of the canopy, ventilation facilities shall be provided in the enclosed space, and a hydrogen concentration alarm device shall be installed."

[0005] However, the canopy design of existing hydrogen refueling stations in the prior art is prone to hydrogen accumulation, resulting in the formation of an explosive mixture and triggering fire and explosion accidents, having certain potential safety hazards. Utility Model Content

[0006] An embodiment of this application provides a canopy for a hydrogen refueling station. It can solve the technical problems that the canopy of the hydrogen refueling station in the prior art is prone to hydrogen accumulation and is likely to cause explosion and fire. The technical solution is as follows:

[0007] A canopy for a hydrogen refueling station is provided, including: columns, four columns are vertically arranged on the ground; a space frame, the space frame is fixedly connected to the tops of the four columns, and the space frame has a top horizontal grid surface and a bottom horizontal grid surface; a canopy top, arranged on the top horizontal grid surface, the canopy top includes two V-shaped sub-canopy tops arranged along a first horizontal direction, and adjacent two V-shaped sub-canopy tops are hermetically connected; each V-shaped sub-canopy top horizontally extends in a second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other; a ceiling, arranged on the bottom horizontal grid surface and located below the bottom horizontal grid surface, the ceiling has a slope with a lower middle and higher edges.

[0008] Optionally, in a vertical section parallel to the second horizontal direction, the ceiling is V-shaped in cross-section, and the ceiling has two first inclined surfaces, and the slope of each first inclined surface is 5%-10%.

[0009] Optionally, in a vertical plane extending along the first horizontal direction, the ceiling has a V-shaped cross-section and has two second inclined surfaces, and the slope of each second inclined surface is 5%-10%.

[0010] Optionally, the ceiling is an inverted quadrangular pyramid-shaped shell with a lower middle part and higher edges, and the quadrangular pyramid-shaped shell has four third inclined surfaces, and the slope of each third inclined surface is 5%-10%.

[0011] Optionally, each V-shaped sub-ceiling includes: two fourth inclined surfaces and two V-shaped gutters, and the two V-shaped gutters are connected together along the second horizontal direction; each V-shaped gutter includes two inclined grooves, and a water leakage hole is arranged at the intersection of the two inclined grooves, and the water leakage hole is connected with a downpipe.

[0012] Optionally, the number of the struts is four, the four struts are respectively close to the four second water leakage holes, and the four downpipes are respectively fixedly connected to the four columns.

[0013] Optionally, the slope of the fourth inclined surface is 5%-10%, and the slope of the inclined groove is 1%.

[0014] Optionally, two rows of exhaust fan groups are correspondingly installed on each V-shaped sub-ceiling, and each row of exhaust fan groups includes a plurality of non-powered ventilators arranged along the second horizontal direction, and the air inlet of each non-powered ventilator is located between the sub-ceiling and the ceiling.

[0015] Optionally, the gap between the column and the ceiling is filled with a sealing material.

[0016] Optionally, side plates are connected to the side of the space frame.

[0017] Optionally, a flashing is arranged at the edge of the sub-ceiling and extends upward.

[0018] The beneficial effects brought by the technical solution provided by the embodiment of the present application at least include:

[0019] A hydrogen refueling station canopy includes: struts, a space frame, a sub-ceiling and a ceiling. Since the middle of the ceiling is lower and the edges are higher, the hydrogen leaked from the hydrogen refueling machine below the hydrogen refueling station canopy will move upward and encounter the ceiling, and then move along the inclined surface of the ceiling to the edge of the ceiling, so as to diffuse into the atmosphere, prevent hydrogen accumulation, and improve the safety of the hydrogen refueling station. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 It is a top view of a hydrogen refueling station canopy provided by an embodiment of the present application;

[0022] Figure 2 It is a front view of a hydrogen refueling station canopy provided by an embodiment of the present application;

[0023] Figure 3 is Figure 1 a cross-sectional view taken along line A-A in

[0024] Figure 4 is Figure 3 a cross-sectional view of the V-shaped sub-roof in

[0025] Figure 5 is Figure 1 a cross-sectional view taken along line B-B in

[0026] Explanation of reference numerals

[0027] 1 - Support pillar; 2 - Space framework; 3 - Roof; 301 - V-shaped sub-roof; 3011 - Fourth inclined surface; 3012 - V-shaped gutter; 30121 - Inclined groove; 3013 - Water leakage hole; 302 - Downpipe; 4 - Ceiling; 401 - First inclined surface; 402 - Second inclined surface; 5 - Exhaust fan unit; 501 - Power-free ventilator; 6 - Side plate. Detailed implementation manners

[0028] The following details the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0029] In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to "upper" and "lower" relative to each other in the direction of gravity when the corresponding components are in use, and "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding components themselves. In addition, the terms "first", "second", etc. used in the present disclosure are for distinguishing one element from another, and do not have sequence and importance. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements.

[0030] A hydrogen refueling station is a dedicated place for filling hydrogen fuel into hydrogen storage cylinders of hydrogen-powered vehicles, hydrogen internal combustion engine vehicles, hydrogen-natural gas hybrid fuel vehicles, etc. The relevant industry standards clearly stipulate that: "The upper awning of the hydrogen refueling island and the hydrogen refueling machine installation site shall comply with the following regulations: 1. The awning shall be made of non-combustible materials. When the load-bearing members of the awning are steel structures, their fire resistance limit shall not be less than 0.25h; 2. The inner surface of the awning shall be flat, and the slope towards the outside shall not accumulate hydrogen; 3. When there is an enclosed space at the top of the awning, ventilation facilities shall be provided in the enclosed space, and a hydrogen concentration alarm device shall be installed." However, the awning design of existing hydrogen refueling stations is prone to hydrogen accumulation, resulting in the formation of an explosive mixture and triggering fire and explosion accidents, posing certain safety hazards.

[0031] Reference Figure 1 and Figure 2 , this application provides a hydrogen refueling station awning, which may include: columns 1, a space frame 2, a roof 3, and a ceiling 4. Among them, the number of columns 1 is four, usually four are selected and arranged vertically on the ground; the space frame 2 is fixedly connected to the tops of the four columns 1, and the space frame 2 has a top horizontal grid surface and a bottom horizontal grid surface.

[0032] The roof 3 is arranged on the top horizontal grid surface. The roof 3 includes two V-shaped sub-roofs 301 arranged along the first horizontal direction, and adjacent two V-shaped sub-roofs 301 are hermetically connected; each V-shaped sub-roof 301 extends horizontally in the second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other; the ceiling 4 is arranged on the bottom horizontal grid surface and is located below the bottom horizontal grid surface. The ceiling 4 has an inclination with a lower middle and higher edges. For the sake of easy understanding, in combination with Figure 1 , if the first horizontal direction is understood as the north-south direction, then the second horizontal direction is the east-west direction. Through such a design, since the middle of the ceiling 4 is low and the edges are high, the hydrogen leaked from the hydrogen refueling machine below the hydrogen refueling station awning will, when encountering the ceiling 4 during the upward floating process, move along the inclined surface of the ceiling 4 towards the edge of the ceiling 4, thereby diffusing into the atmosphere, preventing hydrogen accumulation, and improving the safety of the hydrogen refueling station.

[0033] In an embodiment of the application, with reference to Figure 2 , in a vertical section parallel to the second horizontal direction, the ceiling 4 is V-shaped in cross-section. The ceiling 4 may have two first inclined surfaces 401, and the slope of each first inclined surface 401 is 5%-10%. Similarly, with reference to Figure 3 , in another embodiment of the application, in a vertical plane extending along the second horizontal direction, the ceiling 4 may be V-shaped in cross-section, and the ceiling 4 has two second inclined surfaces 402, and the slope of each second inclined surface 402 is 5%-10%.

[0034] In the third embodiment of the application, the ceiling 4 can also be an inverted quadrangular pyramid-shaped shell with a lower middle and higher edges. The quadrangular pyramid-shaped shell has four third inclined surfaces, and the slope of each third inclined surface is 5%-10%.

[0035] In the embodiments of the present application, referring to Figure 3 and Figure 4 , each V-shaped sub-ceiling 301 includes: two fourth inclined surfaces 3011, and two V-shaped gutters 3012. Referring to Figure 5 , the two V-shaped gutters 3012 are connected together along the second horizontal direction;

[0036] Each V-shaped gutter 3012 includes two inclined grooves 30121. A second water leakage hole 3013 is provided at the intersection of the two inclined grooves 30121, and the second water leakage hole 3013 is connected to a downpipe 302.

[0037] The number of the columns 1 is four. The four columns 1 are respectively close to the four second water leakage holes 3013, and the four downpipes 302 are respectively fixedly connected to the four columns.

[0038] In the embodiments of the present application, the slope of the fourth inclined surface 3011 is 5%-10%, and the slope of the inclined groove 30121 of the V-shaped gutter 3012 is 1%. With such a design, in rainy days, the rainwater on the V-shaped sub-ceiling 301 can be quickly converged into the V-shaped gutter 3012 and discharged from the downpipe 302 in time.

[0039] In the embodiments of the present application, referring to Figure 2 and Figure 3 , side plates 6 are connected to the side parts of the space frame 2. Information such as the name of the hydrogen refueling station can be printed on the side plates 6.

[0040] Since the space between the ceiling 3 and the ceiling 4 is usually a closed space, in order to prevent hydrogen from accumulating in the closed space between the ceiling 3 and the ceiling 4, in the embodiments of the present application, referring to Figure 1 and Figure 3 , two rows of exhaust fan groups 5 are correspondingly installed for each V-shaped sub-ceiling 3013. Each row of exhaust fan groups 5 includes a plurality of non-powered ventilators 501 arranged along the second horizontal direction, and the air inlets of each non-powered ventilator 501 are located in the closed space between the ceiling 3 and the ceiling 4.

[0041] In order to further prevent hydrogen from entering the closed space between the ceiling 3 and the ceiling 4, in the embodiments of the present application, the gap between the column and the ceiling 4 is filled with a sealing material. The sealing material can be selected from sealant or sealing ring.

[0042] In the embodiments of the present application, in order to prevent rainwater from splashing out of the ceiling 3 during heavy rain, a flashing is provided at the edge of the ceiling 3 and extends upward.

[0043] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0044] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0045] Furthermore, any combination can be made among various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A hydrogen refueling station canopy, characterized in that, Comprising: Supports (1), four supports (1) are vertically arranged on the ground; Spatial framework (2), the spatial framework (2) is fixedly connected to the tops of the four supports (1), and the spatial framework (2) has a top horizontal grid surface and a bottom horizontal grid surface; Roof (3), arranged on the top horizontal grid surface, the roof (3) includes two V-shaped sub-roofs (301) arranged along the first horizontal direction, and adjacent two V-shaped sub-roofs (301) are hermetically connected; each V-shaped sub-roof (301) horizontally extends in the second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other; Suspended ceiling (4), arranged on the bottom horizontal grid surface and on the lower side of the bottom horizontal grid surface, the suspended ceiling (4) has a slope with a lower middle and higher edges.

2. The hydrogen refueling station canopy according to claim 1, characterized in that, In a vertical section parallel to the second horizontal direction, the suspended ceiling (4) has a V-shaped cross-section, and the suspended ceiling (4) has two first inclined surfaces (401), and the slope of each first inclined surface (401) is 5%-10%.

3. The hydrogen refueling station canopy according to claim 1, wherein, In a vertical plane extending along the first horizontal direction, the suspended ceiling (4) has a V-shaped cross-section, and the suspended ceiling (4) has two second inclined surfaces (402), and the slope of each second inclined surface (402) is 5%-10%.

4. The hydrogen refueling station canopy according to claim 1, characterized in that, The suspended ceiling (4) is an inverted quadrangular pyramid-shaped shell with a lower middle and higher edges, and the quadrangular pyramid-shaped shell has four third inclined surfaces, and the slope of each third inclined surface is 5%-10%.

5. The hydrogen refueling station canopy according to claim 1, characterized in that, Each V-shaped sub-roof (301) includes: Two fourth inclined surfaces (3011); And two V-shaped gutters (3012), and the two V-shaped gutters (3012) are connected together along the second horizontal direction; Each V-shaped gutter (3012) includes two inclined grooves (30121), and a water leakage hole (3013) is arranged at the intersection of the two inclined grooves (30121), and the water leakage hole (3013) is connected with a downpipe (302). The number of the supports (1) is four, the four supports (1) are respectively close to the four second water leakage holes (3013), and the four downpipes (302) are respectively fixedly connected to the four columns.

6. The hydrogen refueling station canopy according to claim 5, wherein, The slope of the fourth inclined surface (3011) is 5%-10%, and the slope of the inclined groove (30121) is 1%.

7. The hydrogen refueling station canopy according to claim 1, characterized in that, Each V-shaped sub-roof (301) is correspondingly installed with two rows of exhaust fan groups (5), and each row of exhaust fan groups (5) includes a plurality of non-powered ventilators (501) arranged along the second horizontal direction, and the air inlet of each non-powered ventilator (501) is located between the roof (3) and the suspended ceiling (4).

8. The hydrogen refueling station canopy according to claim 1, characterized in that, The gap between the column and the suspended ceiling (4) is filled with a sealing material.

9. The hydrogen refueling station canopy according to claim 1, characterized in that, The side part of the spatial framework (2) is connected with a side plate (6).

10. The hydrogen refueling station canopy according to claim 1, characterized in that, The edge of the roof (3) is provided with a flashing extending upwards.

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