Hydrogen filling station

Abstract

The utility model relates to the field of hydrogen filling, in particular to a hydrogen filling station. Comprising an explosion-proof wall, a plurality of loading and unloading operation platforms, a personnel operation channel, a hydrogen conveying pipe, a plurality of filling hoses and a rainproof awning. According to the utility model, an operator operation activity area and a loading and unloading operation area can be effectively divided, a hydrogen filling hose and an operator inspection operation activity area are effectively divided, the use length of the hose is effectively reduced, and the possibility of hydrogen escape and accumulation is effectively reduced. In combination with reasonable arrangement of auxiliary facilities such as a hand static electricity eliminating instrument and an anti-explosion lighting device, the risk of cross exposure of all procedures and facilities is reduced, the risk of loading and unloading operation of the hydrogen transport vehicle is improved, and operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen filling field, concretely relates to a hydrogen filling station. BACKGROUND

[0002] Hydrogen station is made by relevant technology, hydrogen is sent to pipe filling facility via making facility, compression and storage facility, and is filled into designated transport facility. Hydrogen loading and unloading operation area is generally composed of hydrogen filling facility, auxiliary facility, personnel operation passage, loading and unloading operation platform, transport facility (pipe bundle type container or long pipe trailer) that process connecting pipeline (hydrogen, nitrogen, instrument), valve, safety device, illumination etc. are connected. In prior art, transport facility is connected with process pipeline through hydrogen high-pressure filling hose. The operator sends hydrogen into transport facility through loading and unloading operation (pre-filling, middle-filling, post-filling inspection, vehicle parking (driving away), hose connection, hydrogen filling etc.). Due to the limitation of gas medium loading and unloading and transport facility, this loading platform and filling pipeline layout method has the following problems:

[0003] (1) due to the limitation of filling hose connecting filling interface of transport facility, the filling hose is long, the filling hose is suspended at the vehicle end, and the hose is easy to bend in the operation process, which damages the pressure-bearing capacity of the hose and increases the inspection and maintenance burden.

[0004] (2) due to the filling hose during filling process, it crosses the personnel operation passage, increases the damage to the hose and the probability of personnel collision, if the hose is abnormal and the interface is broken, the probability of operation personnel injury caused by hose swinging is increased.

[0005] (3) due to the dangerous nature of hydrogen, hydrogen filling operation area is mostly arranged in open air or semi-open air, filling hose is placed on the ground, which increases the probability of rainwater corrosion.

[0006] In addition, the surface of the rain cover shed support structure of the loading and unloading operation area is not smooth, which can cause gas accumulation. UTILITY MODEL CONTENTS

[0007] The utility model aims at overcoming the deficiencies of prior art, solving the problem of personnel operation passage and high-pressure filling hose intersection in hydrogen loading and unloading operation process, thereby reducing hose bending, reducing environmental corrosion of hose, reducing hose length, reducing hose bending frequency, avoiding safety risk caused by personnel frequently crossing hose. At the same time, the rain cover shed has hydrogen flow guide structure, which can solve the problem of gas accumulation.

[0008] The utility model solves the technical problems by adopting the following technical solutions:

[0009] The utility model provides a kind of hydrogen filling station, comprising: blast wall, multiple loading and unloading platforms, personnel operation passage, hydrogen delivery pipe, multiple filling hoses, rain cover shed, the multiple loading and unloading platforms are set in the same side of the blast wall, each loading and unloading platform has step;The personnel operation passage is located between the blast wall and the multiple loading and unloading platforms;The hydrogen delivery pipe includes main pipe and multiple branch pipes connected with main pipe, the main pipe is transversely arranged in the upper portion of the blast wall, the multiple branch pipes are overheadly arranged above the personnel operation passage, and the gas outlet end of each branch pipe is arranged above the loading and unloading platform;Each filling hose is connected with a branch pipe;The rain cover shed is arranged above the blast wall and multiple loading and unloading platforms, and the rain cover shed has a hydrogen flow guide structure.

[0010] Further, the rain cover shed has three layers, which are top layer, flow guide layer and support layer, the top layer is used for rain protection, the flow guide layer uses corrugated board, and the support layer uses multiple I-shaped steel.

[0011] Further, the rain cover shed is in the shape of eight characters as a whole, has a hydrogen escape hole in the middle, and a rain cover plate is installed above the hydrogen escape hole.

[0012] Further, each I-shaped steel is covered with a V-shaped flow guide cover.

[0013] Further, the loading and unloading platform has a height of 1-2 meters, a width of 3-4 meters, and a length that is set according to the length of the hose.

[0014] Further, each loading and unloading platform is provided with a hand static electricity eliminator, which is installed on the personnel operation passage and is adjacent to the loading and unloading platform.

[0015] Further, a fence is installed on the loading and unloading platform.

[0016] Advantages and positive effects of the utility model:

[0017] 1. The rain cover shed of the loading and unloading work area has a hydrogen flow guide structure, which can prevent hydrogen leakage from causing gas accumulation under the rain cover shed.

[0018] 2. The hydrogen filling pipeline is arranged overhead, the hose connection interface is located on the hydrogen loading and unloading operation platform, the personnel operation channel and the filling hose are physically separated, the possibility of hose damage is avoided when the inspection and checking activities are carried out in the channel. The length of the hose is greatly reduced, the number of bending of the hose during disassembly and use is effectively reduced, and the probability of damage to the pressure bearing capacity of the hose is reduced. The number of times that personnel stand on the hose and the number of times that personnel come into close contact with the hose during the filling operation, inspection and checking process are greatly reduced, and the length and frequency of personnel exposure to the risk are reduced.

[0019] 3. The utility model has a loading and unloading operation platform, which separates the loading and unloading operation area and the personnel channel area, facilitating management. The possibility of collision of the pipeline, hose and other facilities caused by the transport vehicle during parking is effectively avoided. After the filling hose is disassembled, it can be directly placed on the loading and unloading operation platform, eliminating the operation steps of recycling and hanging the hose, and reducing the operation process of the operator.

[0020] 4. The utility model discloses a hand static electricity eliminator located below the loading and unloading operation platform, which must pass through the eliminator during the loading and unloading operation process, avoiding the problem of unreasonable arrangement of the static electricity eliminator in the general loading and unloading operation area layout.

[0021] 5. The utility model discloses a loading and unloading operation platform installed with a guardrail, avoiding the risk of falling caused by personnel.

[0022] 6. The utility model discloses a hydrogen filling pipeline and a hydrogen loading and unloading operation platform arranged reasonably, effectively separating the operation activity area of the operator and the loading and unloading operation area, effectively separating the hydrogen filling hose and the inspection operation activity area of the operator, effectively reducing the length of the hose, and effectively reducing the possibility of hydrogen dispersion and accumulation. In combination with the reasonable arrangement of auxiliary devices such as a hand static electricity eliminator and explosion-proof lighting, the risk of each process and cross exposure is reduced, the loading and unloading operation activity risk of the hydrogen transport vehicle (pipe bundle container and long pipe trailer) is improved, and the operation safety is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic view of the overall structure of the hydrogen filling station;

[0024] Figure 2 It is a schematic view of the overall structure of the hydrogen filling station; Figure 1

[0025] Figure 3 It is a schematic view of the overall structure of the hydrogen filling station; Figure 2

[0026] Figure 4 It is a schematic view of the overall structure of the hydrogen filling station; Figure 3

[0027] Figure 5 ​​​For Figure 3 Enlarged schematic view of the D section structure;

[0028] Wherein: 1 - rain cover shed; 2 - transport vehicle; 3 - hydrogen delivery pipe; 4 - personnel operation channel; 5 - hand static electricity eliminator; 6 - loading and unloading platform; 7 - fence; 8 - filling hose; 9 - rain cover plate; 10 - flow guide layer; 11 - V-shaped flow guide cover; 12 - explosion-proof wall; 13 - top layer; 14 - support layer. DETAILED DESCRIPTION

[0029] The utility model will be further described in the following through specific embodiments, the following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

[0030] The utility model provides a kind of hydrogen filling station, comprising: explosion-proof wall 12, multiple loading and unloading platforms 6, personnel operation channel 4, hydrogen delivery pipe 3, multiple filling hoses 8, rain cover shed 1.

[0031] Personnel operation channel 4 is immediately adjacent to facility explosion-proof wall 12;Loading and unloading platform 6 is arranged with step, and is arranged immediately adjacent to personnel operation channel 4;Hydrogen delivery pipe 3 main pipe is arranged on facility explosion-proof wall 12, branch pipe straddles personnel operation channel 4, is introduced to the upper middle of loading and unloading platform 6 and is fixed, and filling interface is slightly higher than loading and unloading platform 6, and is horizontally arranged;Filling hose 8 is placed on loading and unloading platform 6, and is connected with hydrogen delivery pipe 3 and transport vehicle 2 for use;Fence 7 is arranged on both sides of loading and unloading platform 6;Hand static electricity eliminator 5 is installed on personnel operation channel 4, and is immediately adjacent to loading and unloading platform 6.

[0032] Hydrogen filling pipeline is supported by explosion-proof wall and foundation column, is arranged overhead in personnel operation channel, is laid to hydrogen loading and unloading platform and is fixed, realizes the separation with personnel operation channel.Reserve and hydrogen high-pressure filling hose connecting cylinder interface at hydrogen loading and unloading platform terminal, and the interface height is slightly higher than hydrogen loading and unloading operation platform, and already has the overhaul operation space.

[0033] Loading and unloading work area is wholly arranged with semi-open air, meets GB 50177-2005 hydrogen station design specification and GB / T43674-2024 hydrogen station general requirement, and rain cover shed with flow guide structure is set.

[0034] The rain cover shed has three layers, which are top layer 13, flow guide layer 10 and support layer 14, the top layer is used for rain shielding, the flow guide layer adopts corrugated board, and the support layer adopts a plurality of I-shaped steel. The whole rain cover shed is in the shape of an eight character, has a hydrogen escape port in the middle, and a rain cover plate 9 is installed above the hydrogen escape port. The rain cover plate 9 is arranged vertically above the explosion-proof wall. Each I-shaped steel is covered with a V-shaped flow guide cover 11 below. By using the characteristic of extremely low hydrogen density, the lower surface of the relatively smooth and hydrogen-stopping rain cover shed is realized. The middle part of the whole rain cover shed is inclined and adopts a hollow layout, and a rain cover plate is arranged at the high point above the hollow layout, so as to prevent hydrogen accumulation by using the natural air flow above.

[0035] The hydrogen loading and unloading platform is longer than the traditional loading and unloading platform, and the height of the loading and unloading platform is 1-2 meters, the width is 3-4 meters, and the length is set according to the length of the hose. (The minimum is not less than the relevant provisions of SH / T 3412-2017).

[0036] According to SH / T 3412-2017 Metal Hose for Petroleum and Chemical Industry Pipeline Selection, Inspection and Acceptance Specification. The hydrogen high-pressure filling hose can be placed on the loading and unloading platform when not in use. A certain height of fence is arranged on both sides of the hydrogen loading and unloading platform to prevent accidental falling of personnel.

[0037] The hydrogen high-pressure filling hose is arranged on the loading and unloading platform, and the length of the hose meets the requirements of SH / T 3412-2017 Metal Hose for Petroleum and Chemical Industry Pipeline Selection, Inspection and Acceptance Specification. One end is connected to the reserved interface of the hydrogen delivery pipe, and the other end is connected to the filling interface on the transport vehicle.

[0038] Auxiliary facilities such as lighting in the loading and unloading area are arranged above the hydrogen filling pipeline, meet the safety clearance requirements of relevant specifications such as GB 50177-2005 Hydrogen Station Design Specification and GB / T 43674-2024 General Requirements for Hydrogenation Station, and adopt the corresponding explosion-proof type. The human body static electricity eliminator is arranged below each loading and unloading platform.

[0039] The application method of the filling station is as follows:

[0040] During daily operation, inspection, and other activities, personnel operate and move in the personnel operation channel 4; when loading and unloading operations are needed, the transport vehicle 2 is parked at the designated loading and unloading platform 6; the operator enters the loading and unloading area from the personnel operation channel 4, uses the hand static electricity eliminator 5, gets on the loading and unloading platform 6, performs pre-filling inspection, connects the filling hose 8, and performs filling operation. After filling is completed, the filling hose 8 is removed and placed on the loading and unloading platform 6.

[0041] The above merely is preferred implementation manner of the utility model, it should be pointed out, for ordinary skilled person in the art, under the premise of not departing from the utility model concept, can also make several deformation and improvement, these all belong to the protection scope of the utility model.

Claims

1. A hydrogen filling station, characterized in that, The application relates to a hydrogen filling station, which comprises the following parts: an explosion-proof wall, a plurality of loading and unloading platforms arranged on the same side of the explosion-proof wall, each loading and unloading platform having a step; a personnel operation channel between the explosion-proof wall and the plurality of loading and unloading platforms; a hydrogen conveying pipe, which comprises a main pipe and a plurality of branch pipes connected with the main pipe, the main pipe being horizontally arranged on the upper portion of the explosion-proof wall, and the plurality of branch pipes being arranged above the personnel operation channel, the gas outlet end of each branch pipe being arranged above the loading and unloading platform; a plurality of filling hoses, each filling hose being connected with a branch pipe; a rainproof shed arranged above the explosion-proof wall and the plurality of loading and unloading platforms, the rainproof shed having a hydrogen flow guiding structure.

2. Hydrogen filling station according to claim 1, characterized in that The rainproof shed has three layers, i.e. a top layer, a flow guiding layer and a supporting layer, the top layer being used for rainproof, the flow guiding layer being made of corrugated boards, and the supporting layer being made of a plurality of I-shaped steel.

3. Hydrogen filling station according to claim 2, characterized in that The rainproof shed is in an overall eight-shaped structure, has a hydrogen escaping hole in the middle portion, and is provided with a rainproof cover plate above the hydrogen escaping hole.

4. Hydrogen filling station according to claim 3, characterized in that Each I-shaped steel is covered with a V-shaped flow guiding cover.

5. The hydrogen filling station according to claim 1, characterized in that, The height of each loading and unloading platform is 1-2 meters, the width is 3-4 meters, and the length is arranged according to the length of the hose.

6. The hydrogen filling station according to claim 1, characterized in that Each loading and unloading platform is provided with a hand static electricity eliminator, the hand static electricity eliminator being arranged on the personnel operation channel and being adjacent to the loading and unloading platform.

7. The hydrogen filling station according to claim 1, characterized in that, A fence is arranged on the loading and unloading platform.

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