A pipeline purging device for hydrogen refueling stations

Abstract

This utility model relates to the field of hydrogen refueling stations, and particularly to a pipeline purging device for hydrogen refueling stations. It includes a housing, with a cleaning shaft rotatably connected to the center of one end of the housing. A cleaning structure is rotatably connected to the inner wall of the housing, located outside the cleaning shaft. Support components are provided at the four corners of the bottom outer wall of the housing, and a mounting frame is installed at the center of the inner wall of one end of the housing, housing a drive motor. The cleaning structure includes an air blowing hole at the center of one end of the cleaning shaft, return holes equidistantly located on the outer wall of one end of the cleaning shaft, an air inlet box and an air outlet box installed on the inner wall of the housing at the cleaning shaft, a fan installed on the inner wall of the top of the housing, and a collection cylinder installed on the inner wall of the bottom of the housing. This utility model allows the entire unit to be moved to the working area via casters at the bottom of the housing, facilitating movement. Activating a hydraulic push rod supports the casters to adjust the height of the housing and one end of the cleaning shaft, facilitating height adjustment and ease of use.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen refueling station technology, and in particular to a pipeline purging device for hydrogen refueling stations. Background Technology

[0002] Hydrogen refueling stations are infrastructures that provide hydrogen refueling services for vehicles such as hydrogen-powered cars and railway locomotives. By injecting hydrogen into hydrogen-powered cars and railway locomotives, they generate electricity to power the vehicles and locomotives, achieving zero emissions. The core equipment includes hydrogen compressors, high-pressure hydrogen storage tanks, and hydrogen refueling machines. The method of refueling fuel cell vehicles with hydrogen is similar to that of gas stations.

[0003] A search of patent CN202021194366.4 discloses a pipe inner wall blowing and dust removal device. In this device, the gas ejected from an external high-pressure jet device enters the interior of the duct through the jet pipe, so that the high-pressure gas is ejected through the arc-shaped blowing channel in the duct wall. The high-speed gas ejected along the blowing channel generates a reverse force in the circumferential direction of the duct, causing the duct to drive the steel brush to rotate in the brake line on the vehicle body, thereby facilitating the scraping and cleaning of dirt and dust impurities covering the inner wall of the brake line.

[0004] However, dust generated during cleaning accumulates inside the pipes, and after cleaning, the dust accumulates at the bottom of the pipes, affecting subsequent use. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing a pipeline purging device for hydrogen refueling stations: air is drawn in by a blower and delivered to the air inlet box, the gas is blown out through the air blowing hole, and after the airflow mixes with dust, the airflow and dust enter the collection cylinder through the connecting pipe for collection, which facilitates the collection of dust inside the pipeline, improves cleaning efficiency, and avoids dust retention after cleaning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pipeline purging device for a hydrogen refueling station includes a housing. A cleaning shaft is rotatably connected to the center of one end of the housing, and a cleaning structure is rotatably connected to the inner wall of the housing, located on the outer wall of the cleaning shaft. Support components are provided at the four corners of the bottom outer wall of the housing, and a mounting frame is installed at the center of the inner wall of one end of the housing. A drive motor is installed in the mounting frame. The cleaning structure includes an air blowing hole opened at the center of one end of the cleaning shaft, return holes opened at equal intervals on the outer wall of one end of the cleaning shaft, an air inlet box and an air outlet box installed on the inner wall of the housing located on the cleaning shaft, a fan installed on the inner wall of the top of the housing, and a collection cylinder installed on the inner wall of the bottom of the housing.

[0008] Preferably, the other ends of the blowing hole and the return hole are located at the air inlet box and the air outlet box, respectively, and a rotating hole is provided at the center of both the air inlet box and the air outlet box, and the outer wall of the cleaning shaft is rotatably connected to the rotating hole.

[0009] Preferably, the output shaft of the drive motor is connected to one end of the cleaning shaft, and the outer wall of the other end of the cleaning shaft has grooves distributed at equal intervals, and a cleaning brush is installed on the outer wall of the cleaning shaft at the groove.

[0010] Preferably, the output end of the fan and the top of the collection cylinder are both connected to a connecting pipe, and the other end of the connecting pipe is connected to the air inlet box and the air outlet box respectively. A sealing plate is rotatably connected to the outer wall of one end of the cleaning shaft.

[0011] Preferably, one end of the collecting cylinder is threadedly connected to a cover plate, and the inner wall of the cover plate is provided with an exhaust groove. The cover plate is provided with filter material in the exhaust groove, and the outer wall of the exhaust groove is provided with equidistantly distributed air holes.

[0012] Preferably, the support assembly includes recessed grooves at the four corners of the bottom outer wall of the housing, hydraulic push rods installed in the recessed grooves, and casters installed at one end of the hydraulic push rods.

[0013] Preferably, a limiting frame is installed on the bottom inner wall of the housing, and the battery pack is placed in the limiting frame.

[0014] Preferably, the drive motor and the fan are connected to the controller via wires, and the controller is connected to a power source or battery pack via wires.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Air is drawn in by a fan and delivered to the air inlet box. The air is blown out through the air blowing hole. After the airflow mixes with the dust, the airflow and dust enter the collection cylinder through the connecting pipe for collection. This facilitates the collection of dust inside the pipe, improves cleaning efficiency, and avoids dust accumulation after cleaning.

[0017] 2. Move the entire unit to the working area using the casters at the bottom of the housing for easy movement. Activate the hydraulic push rod to support the casters and adjust the height of the housing and one end of the cleaning shaft for easy height adjustment and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of a pipeline purging device for a hydrogen refueling station proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the unfolded structure of a pipeline purging device for a hydrogen refueling station proposed in this utility model;

[0020] Figure 3This is a schematic diagram of the overall structure of a pipeline purging device for a hydrogen refueling station proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of a pipeline purging device for a hydrogen refueling station proposed in this utility model.

[0022] In the diagram: 1. Housing, 2. Cleaning shaft, 3. Drive motor, 4. Mounting bracket, 5. Cleaning structure, 6. Limiting bracket, 7. Battery pack, 8. Support assembly, 9. Air blowing hole, 10. Return hole, 11. Cleaning brush, 12. Air inlet box, 13. Exhaust box, 14. Fan, 15. Collection cylinder, 16. Connecting pipe, 17. Cover plate, 18. Exhaust groove, 19. Filter media, 20. Sealing plate, 21. Embedded groove, 22. Hydraulic push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1:

[0025] Reference Figure 1-4 A pipeline purging device for a hydrogen refueling station includes a housing 1, a cleaning shaft 2 rotatably connected to the center of one end of the housing 1, and a cleaning structure 5 rotatably connected to the inner wall of the housing 1 located on the outer wall of the cleaning shaft 2. Support components 8 are provided at the four corners of the bottom outer wall of the housing 1, and a mounting frame 4 is installed at the center of the inner wall of one end of the housing 1. A drive motor 3 is installed in the mounting frame 4.

[0026] The support assembly 8 includes recessed grooves 21 at the four corners of the bottom outer wall of the housing 1, hydraulic push rods 22 installed in the recessed grooves 21, and casters installed at one end of the hydraulic push rods 22. The hydraulic push rods 22 at the four corners of the bottom outer wall of the housing 1 adjust the height of the housing 1 and the cleaning shaft 2 for easy use. The casters at the bottom of the housing 1 move the whole assembly to the working area for easy movement.

[0027] A limit frame 6 is installed on the bottom inner wall of the housing 1, and a battery pack 7 is placed in the limit frame 6. When used in a power-free scenario, the battery pack 7 placed on the limit frame 6 provides power to the drive motor 3 and the fan 14, which is convenient for use.

[0028] The drive motor 3 and the fan 14 are connected to the controller via wires, and the controller is connected to the power supply or battery pack 7 via wires.

[0029] Example 2:

[0030] Reference Figure 1-3The cleaning structure 5 includes an air blowing hole 9 opened at the center of one end of the cleaning shaft 2, a return hole 10 opened at equal intervals on the outer wall of one end of the cleaning shaft 2, an air inlet box 12 and an exhaust box 13 installed on the inner wall of the housing 1 at the cleaning shaft 2, a fan 14 installed on the inner wall of the top of the housing 1, and a collection cylinder 15 installed on the inner wall of the bottom of the housing 1.

[0031] The other ends of the air blowing hole 9 and the return hole 10 are located at the air inlet box 12 and the exhaust box 13, respectively. A rotating hole is opened at the center of the air inlet box 12 and the exhaust box 13. The outer wall of the cleaning shaft 2 is rotatably connected to the rotating hole. The cleaning shaft 2 blows out gas through the air blowing hole 9. After the gas mixes with the dust, it enters the collection cylinder 15 through the return hole 10 for collection. This facilitates the collection of dust, makes it easier to handle the dust that has been swept out, and improves cleaning efficiency.

[0032] The output shaft of the drive motor 3 is connected to one end of the cleaning shaft 2, and the outer wall of the other end of the cleaning shaft 2 is provided with grooves that are evenly distributed. A cleaning brush 11 is installed on the outer wall of the cleaning shaft 2 located in the groove. The drive motor 3 drives the cleaning shaft 2 to rotate. The outer wall of the cleaning shaft 2 is rotatably connected to the air inlet box 12, the exhaust box 13 and the outer wall of the housing 1. Multiple points support the cleaning shaft 2 to ensure the stability of the rotation process.

[0033] The output end of the fan 14 and the top of the collection cylinder 15 are both connected to a connecting pipe 16, and the other end of the connecting pipe 16 is connected to the air inlet box 12 and the exhaust box 13 respectively. A sealing plate 20 is rotatably connected to the outer wall of one end of the cleaning shaft 2.

[0034] One end of the collection cylinder 15 is threadedly connected to a cover plate 17, and the inner wall of the cover plate 17 is provided with an exhaust groove 18. The cover plate 17 is provided with filter material 19 in the exhaust groove 18, and the outer wall of the exhaust groove 18 is provided with equidistantly distributed air holes. After use, the cover plate 17 at one end of the collection cylinder 15 is opened to clean the filter material 19 in the exhaust groove 18 on the cover plate 17 and to clean the dust collected inside the collection cylinder 15, which is convenient for cleaning.

[0035] Working principle:

[0036] In use, the entire unit is moved to the working area using the casters at the bottom of the housing 1 for easy movement. The hydraulic push rod 22 is activated to support the casters and adjust the height of the housing 1 and one end of the cleaning shaft 2, so that the cleaning brush 11 on the outer wall of the cleaning shaft 2 contacts the inner wall of the pipe. The drive motor 3 is activated to rotate the cleaning shaft 2, pushing the housing 1 so that the sealing plate 20 at one end of the cleaning shaft 2 contacts the outer wall of one end of the pipe. The cleaning shaft 2 and cleaning brush 11 rotate and enter the inner wall of the pipe. The rotation of the cleaning brush 11 sweeps away dust and other debris from the inner wall of the pipe, which is then dissipated by the fan 14. After startup, air is drawn in and delivered to the air inlet box 12 through the connecting pipe 16. Then, the gas moves through the air blowing hole 9 at one end of the cleaning shaft 2 and is blown out at the other end. After the airflow mixes with the dust, the sealing plate 20 blocks one end of the pipe and seals it with the inner wall of the pipe, so that the airflow and dust enter the exhaust box 13 through the return hole 10. The airflow and dust in the exhaust box 13 enter the collection cylinder 15 through the connecting pipe 16 for collection. Then, the gas passes through the filter material 19 and the exhaust groove 18 and is discharged, which facilitates the collection of dust inside the pipe and improves cleaning efficiency.

[0037] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A pipeline purging device for hydrogen stations, comprising a box (1), characterized in that, A cleaning shaft (2) is rotatably connected to the center of one end of the box (1), and a cleaning structure (5) is rotatably connected to the outer wall of the cleaning shaft (2) on the inner wall of the box (1). Support components (8) are provided at the four corners of the bottom outer wall of the box (1), and a mounting bracket (4) is installed at the center of the inner wall of one end of the box (1). A drive motor (3) is installed in the mounting bracket (4). The cleaning structure (5) includes an air blowing hole (9) at the center of one end of the cleaning shaft (2), return holes (10) at equal intervals on the outer wall of one end of the cleaning shaft (2), an air inlet box (12) and an exhaust box (13) installed on the inner wall of the housing (1) at the cleaning shaft (2), a fan (14) installed on the inner wall of the top of the housing (1), and a collection cylinder (15) installed on the inner wall of the bottom of the housing (1).

2. A pipeline purging device for a hydrogen station according to claim 1, characterized by The other ends of the air blowing hole (9) and the return hole (10) are located at the air inlet box (12) and the exhaust box (13) respectively, and a rotating hole is provided at the center of the air inlet box (12) and the exhaust box (13). The outer wall of the cleaning shaft (2) is rotatably connected to the rotating hole.

3. A pipeline purging device for a hydrogen station according to claim 1, characterized by The output shaft of the drive motor (3) is connected to one end of the cleaning shaft (2), and the outer wall of the other end of the cleaning shaft (2) is provided with grooves distributed at equal intervals. A cleaning brush (11) is installed on the outer wall of the cleaning shaft (2) located in the groove.

4. The pipeline purging device for a hydrogen refueling station according to claim 1, characterized in that, The output end of the fan (14) and the top end of the collection cylinder (15) are both connected to a connecting pipe (16), and the other end of the connecting pipe (16) is connected to the air inlet box (12) and the exhaust box (13) respectively. A sealing plate (20) is rotatably connected to the outer wall of one end of the cleaning shaft (2).

5. A pipeline purging device for a hydrogen refueling station according to claim 1, characterized in that, One end of the collecting cylinder (15) is threadedly connected to a cover plate (17), and the inner wall of the cover plate (17) is provided with an exhaust groove (18). The cover plate (17) is located in the exhaust groove (18) and is provided with filter material (19). The outer wall of the exhaust groove (18) is provided with equidistantly distributed air holes.

6. A pipeline purging device for a hydrogen refueling station according to claim 1, characterized in that, The support assembly (8) includes an inner groove (21) at the four corners of the bottom outer wall of the box (1), a hydraulic push rod (22) installed in the inner groove (21), and a caster wheel installed at one end of the hydraulic push rod (22).

7. A pipeline purging device for a hydrogen refueling station according to claim 1, characterized in that, The bottom inner wall of the box (1) is equipped with a limiting frame (6), and a battery pack (7) is placed in the limiting frame (6).

8. A pipeline purging device for a hydrogen refueling station according to claim 1, characterized in that, The drive motor (3) and the fan (14) are connected to the controller via wires, and the controller is connected to the power supply or battery pack (7) via wires.

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