High-purity hydrogen filling device

Abstract

The utility model relates to the technical field of hydrogen filling equipment, in particular to a high-purity hydrogen filling device which comprises a gas storage tank, a conveying pump is fixedly connected to the top of the gas storage tank, the gas inlet end of the conveying pump is connected to the interior of the gas storage tank through a pipeline, and the gas conveying end of the conveying pump is fixedly communicated with a connecting pipe. According to the device, a plurality of protection mechanisms are fixedly connected to the outer side wall of the hose in a sleeved mode, a second threaded pipe and a threaded groove are used in cooperation, so that the round shell and the elastic pipe are fixed conveniently, and a gas one-way valve and an outer side air pump are used in cooperation, so that air in the elastic pipe is extracted conveniently; the elastic pipe is arranged on the outer side of the flexible pipe, so that the elastic pipe is adsorbed and fixed to the outer side of the flexible pipe, the flexible pipe is conveniently shielded and protected through the elastic pipe, when the flexible pipe or the elastic pipe is damaged, gas enters the space between the elastic pipe and the flexible pipe, the elastic pipe is separated from the flexible pipe, whether the flexible pipe or the elastic pipe is damaged or not is conveniently and rapidly judged, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen filling equipment, in particular to a high-purity hydrogen filling device. Background Art

[0002] Due to the rapid development of fine chemicals, powder metallurgy, oil hydrogenation, forestry and agricultural product hydrogenation, bioengineering, petroleum refining hydrogenation, and hydrogen fuel clean vehicles, the demand for pure hydrogen has increased rapidly. Hydrogen refueling stations fill fuel cells, electric vehicles, and hydrogen internal combustion engine vehicles with hydrogen to achieve the function of hydrogen refueling stations, so that hydrogen can be truly used as energy. In order for the car to carry enough hydrogen, it is necessary to ensure that the car is filled with gas. In order to achieve the simultaneous hydrogenation of several cars or continuous hydrogenation of cars at the hydrogen refueling station, during the hydrogen filling process, the hydrogen compressor or hydrogen storage tank supplies gas to the hydrogen filling exhaust through the hydrogen filling hose. However, the existing hydrogen filling hose has general corrosion resistance and is prone to friction with the ground during use. After long-term use, the hydrogen filling hose is easily damaged, eventually causing a large amount of hydrogen leakage. Utility Model Content

[0003] The purpose of the utility model is to provide a high-purity hydrogen filling device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-purity hydrogen filling device comprises a gas storage tank, the top of which is fixedly connected to a delivery pump, the air inlet end of the delivery pump is connected to the interior of the gas storage tank through a pipeline, and the air delivery end of the delivery pump is connected and fixed with a connecting pipe, one end of the connecting pipe is connected and fixed with a check valve, and one end of the check valve is connected and fixed with a bent pipe, one end of the bent pipe is connected and fixed with a hose, and one end of the hose is fixedly connected with a threaded pipe, a plurality of protection mechanisms are sleeved and fixed on the outer side wall of the hose, and a dustproof mechanism is matched with the outer side of the threaded pipe.

[0006] Furthermore, the protection mechanism includes an elastic tube, a gas one-way valve is installed and fixed at the middle position of the outer side wall of the elastic tube, both ends of the elastic tube are fixedly connected to a circular shell, and a circular hole is opened at the middle position of one side of the circular shell, an inner side wall of the circular shell is fixedly connected to a circular ring, and one side of the circular ring is fixedly connected to a threaded tube 2, the inside of the circular shell is slidably connected to a fixing ring, and the inner side wall of the fixing ring is sleeved and fixed with the outer side wall of the hose, a threaded groove is opened on one side of the fixing ring, and the threaded groove is screwed and connected to the threaded tube 2 at the corresponding position.

[0007] Preferably, both inner side walls of the thread groove are provided with limiting notches, both the outer side wall and the inner side wall of the circular ring are provided with annular notches, and a rubber ring is fixed inside the annular notch, and the rubber ring is engaged with the limiting notches at corresponding positions.

[0008] Preferably, the outer diameter of the fixing ring is the same as the inner diameter of the round shell, and the thickness of the fixing ring is the same as the depth inside the round shell.

[0009] Furthermore, the dustproof mechanism includes a connecting block, a connecting hole is opened at one end of the connecting block, and a placement groove is opened at the other end of the connecting block, the connecting hole is communicated with the placement groove, one end of the connecting block is fixedly connected with a threaded tube three, and the threaded tube three is screwed and connected with the threaded tube one.

[0010] Preferably, an external thread is provided on the outer side of the other end of the connecting block, a gas transmission shell is arranged on the outer side of the connecting block, an internal thread is provided on the inner wall of one end of the gas transmission shell, and the internal thread is screwed together with the external thread, and a filter is fixed to the internal sleeve of the other end of the gas transmission shell.

[0011] Preferably, an inner wall of the placement groove is evenly fixed with multiple rotating seats, and the interior of the rotating seat is rotatably connected with a rotating block through an axle rod, one end of the rotating block is fixedly connected with a sealing plate, and one end of the sealing plate is in contact with an inner wall of the placement groove, an arc shell is provided on the outer side of the sealing plate, and one end of the arc shell is fixedly connected to the inner wall of the placement groove, an arc block is slidably connected to the inside of the arc shell, one side of the arc block is fixedly connected with a compression spring, and one end of the compression spring is fixedly connected to the inner wall of the placement groove, and the other side of the arc block is fixedly connected with an arc plate, and one end of the arc plate is fixedly connected to the outer wall of the sealing plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Multiple protective mechanisms are fixed on the outer wall of the hose, and the round shell and the elastic tube are fixed by using the threaded tube and the threaded groove. The gas one-way valve and the outer air pump are used to evacuate the inside of the elastic tube, so that the elastic tube is adsorbed and fixed on the outside of the hose. The elastic tube is used to shield and protect the hose. When the hose or the elastic tube is damaged, the gas will enter between the elastic tube and the hose, so that the elastic tube and the hose are separated, so that it is easy to quickly judge whether the hose or the elastic tube is damaged, and it is more convenient to use.

[0014] 2. A dust-proof mechanism is provided on the outside of the threaded pipe 1, and a filter can be used to remove foreign matter from the inside of the gas transmission shell, and a compression spring is used to facilitate the movement of the arc block, so that the arc plate and the sealing plate are kept in appropriate positions, and the multiple sealing plates moved to appropriate positions will block the connecting holes, further preventing foreign matter such as dust from entering the inside of the threaded pipe 3 and the hose, thereby improving the practicability of the high-purity hydrogen filling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the positional relationship between the elbow and the hose in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the protection mechanism in the utility model;

[0018] Figure 4 It is a schematic diagram of the positional relationship between the circular shell and the circular ring in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the dustproof mechanism in the utility model;

[0020] Figure 6 It is a schematic diagram of the positional relationship between the arc plate and the sealing plate in the utility model.

[0021] In the figure: 100, gas storage tank; 110, delivery pump; 111, connecting pipe; 120, elbow; 130, check valve; 140, hose; 150, threaded pipe 1; 200, protection mechanism; 210, elastic pipe; 220, gas check valve; 230, round shell; 231, round hole; 240, fixing ring; 241, thread groove; 242, limit notch; 250, round ring; 251, rubber ring ; 260, threaded pipe two; 300, dustproof mechanism; 310, gas transmission shell; 311, internal thread; 312, filter; 320, connecting block; 321, connecting hole; 322, placement groove; 323, external thread; 330, threaded pipe three; 340, arc shell; 350, arc block; 360, compression spring; 370, arc plate; 380, sealing plate; 381, rotating block; 382, ​​rotating seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-6 A high-purity hydrogen filling device includes a gas storage tank 100, a delivery pump 110 is fixedly connected to the top of the gas storage tank 100, an air inlet end of the delivery pump 110 is connected to the inside of the gas storage tank 100 through a pipeline, and a connecting pipe 111 is connected and fixed to the gas delivery end of the delivery pump 110, one end of the connecting pipe 111 is connected and fixed to a check valve 130, and one end of the check valve 130 is connected and fixed to an elbow 120, one end of the elbow 120 is connected and fixed to a hose 140, and one end of the hose 140 is fixedly connected to a threaded pipe 150, a plurality of protection mechanisms 200 are sleeved and fixed to the outer wall of the hose 140, and a dustproof mechanism 300 is matched with the outer side of the threaded pipe 150.

[0025] Specifically, the gas storage tank 100 is used to store high-purity hydrogen, and the delivery pump 110, the connecting pipe 111 and the check valve 130 are used to deliver the high-purity hydrogen to the inside of the elbow 120 and the hose 140. Then, a plurality of protection mechanisms 200 are used to shield and protect the hose 140. The protection mechanism 200 is used to monitor whether the hose 140 is damaged, and the dustproof mechanism 300 can prevent foreign matter from entering the inside of the hose 140 when the high-purity hydrogen filling device is not in use.

[0026] like Figure 1-4 As shown, in this embodiment, the protection mechanism 200 includes an elastic tube 210, a gas one-way valve 220 is fixedly installed at the middle position of the outer wall of the elastic tube 210, both ends of the elastic tube 210 are fixedly connected with a circular shell 230, and a circular hole 231 is opened at the middle position of one side of the circular shell 230, an inner wall of the circular shell 230 is fixedly connected with a circular ring 250, and one side of the circular ring 250 is fixedly connected with a threaded tube 260, the interior of the circular shell 230 is slidably connected with a fixing ring 240, and the inner wall of the fixing ring 240 is sleeved and fixed with the outer wall of the hose 140, a thread groove 241 is opened on one side of the fixing ring 240, and the thread groove 241 is screwed and connected with the threaded tube 260 at the corresponding position, the outer diameter of the fixing ring 240 is the same as the inner diameter of the circular shell 230, and the thickness of the fixing ring 240 is the same as the depth inside the circular shell 230.

[0027] In this embodiment, the threaded tube 260 and the threaded groove 241 are used together to fix the circular shell 230 and the elastic tube 210, and the gas one-way valve 220 and the outer air pump are used together to evacuate the inside of the elastic tube 210, so that the elastic tube 210 is adsorbed and fixed on the outside of the hose 140, and the elastic tube 210 is used to shield and protect the hose 140. When the hose 140 or the elastic tube 210 is damaged, the gas will enter between the elastic tube 210 and the hose 140, so that the elastic tube 210 is separated from the hose 140, so that it is easy to quickly determine whether the hose 140 or the elastic tube 210 is damaged, and it is more convenient to use.

[0028] like Figure 1-4 As shown, in this embodiment, both inner walls of the thread groove 241 are provided with limiting notches 242, and both the outer and inner walls of the circular ring 250 are provided with annular notches, and a rubber ring 251 is fixedly installed inside the annular notch, and the rubber ring 251 is snap-fitted with the limiting notch 242 at the corresponding position.

[0029] In specific implementation, the rubber ring 251 and the limiting notch 242 are used together to improve the sealing performance of the installation and fixation of the round shell 230, thereby avoiding air leakage between the elastic tube 210 and the hose 140 after the protection mechanism 200 is installed.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to prevent foreign matter from entering the interior of the hose 140 and affecting the normal use of the high-purity hydrogen filling device.

[0032] like Figure 5-6As shown, in this embodiment, the dust prevention mechanism 300 includes a connecting block 320, one end of the connecting block 320 is provided with a connecting hole 321, and the other end of the connecting block 320 is provided with a placement groove 322, the connecting hole 321 is communicated with the placement groove 322, one end of the connecting block 320 is fixedly connected with a threaded tube 330, and the threaded tube 330 is screwed and connected with the threaded tube 150, the outer side of the other end of the connecting block 320 is provided with an external thread 323, the outer side of the connecting block 320 is provided with a gas transmission shell 310, the inner side wall of one end of the gas transmission shell 310 is provided with an internal thread 311, and the internal thread 311 is screwed and connected with the external thread 323, the inner sleeve of the other end of the gas transmission shell 310 is fixed with a filter screen 312, and the placement groove 322 is connected. An inner wall of the rotating seat 382 is evenly fixedly connected, and the interior of the rotating seat 382 is rotatably connected to a rotating block 381 through an axial rod, one end of the rotating block 381 is fixedly connected to a sealing plate 380, and one end of the sealing plate 380 is in contact with an inner wall of the placement groove 322, an arc shell 340 is provided on the outer side of the sealing plate 380, and one end of the arc shell 340 is fixedly connected to the inner wall of the placement groove 322, the interior of the arc shell 340 is slidably connected to an arc block 350, one side of the arc block 350 is fixedly connected to a compression spring 360, and one end of the compression spring 360 is fixedly connected to the inner wall of the placement groove 322, the other side of the arc block 350 is fixedly connected to an arc plate 370, and one end of the arc plate 370 is fixedly connected to the outer wall of the sealing plate 380.

[0033] In specific implementation, when high-purity hydrogen is transported, the output high-purity hydrogen is used to facilitate the rotation of multiple sealing plates 380. When the high-purity hydrogen filling device is not in use, the filter 312 can be used to remove foreign matter from the interior of the gas transmission shell 310, and the compression spring 360 is used to facilitate the movement of the arc block 350, so that the arc plate 370 and the sealing plate 380 are maintained in appropriate positions, and the multiple sealing plates 380 moved to the appropriate positions will block the connecting hole 321, further preventing foreign matter such as dust from entering the interior of the threaded tube three 330 and the hose 140, thereby improving the practicability of the high-purity hydrogen filling device.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-purity hydrogen filling device, comprising a gas storage tank, characterized in that: A delivery pump is fixedly connected to the top of the gas storage tank, and the air inlet end of the delivery pump is connected to the inside of the gas storage tank through a pipeline, and the air delivery end of the delivery pump is connected and fixed with a connecting pipe, one end of the connecting pipe is connected and fixed with a check valve, and one end of the check valve is connected and fixed with a bent pipe, one end of the bent pipe is connected and fixed with a hose, and one end of the hose is fixedly connected with a threaded pipe 1, a plurality of protection mechanisms are sleeved and fixed on the outer side wall of the hose, and a dustproof mechanism is matched with the outer side of the threaded pipe 1.

2. A high-purity hydrogen filling device according to claim 1, characterized in that: The protection mechanism includes an elastic tube, a gas one-way valve is fixedly installed at the middle position of the outer side wall of the elastic tube, both ends of the elastic tube are fixedly connected with a round shell, and a round hole is opened at the middle position of one side of the round shell, an inner side wall of the round shell is fixedly connected with a round ring, and one side of the round ring is fixedly connected with a threaded tube 2, the inside of the round shell is slidably connected with a fixing ring, and the inner side wall of the fixing ring is sleeved and fixed with the outer side wall of the hose, a threaded groove is opened on one side of the fixing ring, and the threaded groove is screwed and connected with the threaded tube 2 at the corresponding position.

3. A high-purity hydrogen filling device according to claim 2, characterized in that: Both inner side walls of the thread groove are provided with limiting notches, and both the outer side wall and the inner side wall of the circular ring are provided with annular notches, and rubber rings are fixedly installed inside the annular notches, and the rubber rings are engaged with the limiting notches at corresponding positions.

4. A high-purity hydrogen filling device according to claim 2, characterized in that: The outer diameter of the fixing ring is the same as the inner diameter of the round shell, and the thickness of the fixing ring is the same as the depth inside the round shell.

5. A high-purity hydrogen filling device according to claim 1, characterized in that: The dustproof mechanism includes a connecting block, one end of which is provided with a connecting hole, and the other end of which is provided with a placement groove, the connecting hole is communicated with the placement groove, one end of the connecting block is fixedly connected with a threaded tube three, and the threaded tube three is screwed and connected with the threaded tube one.

6. A high-purity hydrogen filling device according to claim 5, characterized in that: The other end of the connection block is provided with an external thread on the outside, a gas transmission shell is arranged on the outside of the connection block, an internal thread is provided on the inner wall of one end of the gas transmission shell, and the internal thread is screwed and connected with the external thread, and a filter is fixed inside the other end of the gas transmission shell.

7. A high-purity hydrogen filling device according to claim 5, characterized in that: An inner wall of the placement groove is evenly fixed with multiple rotating seats, and the interior of the rotating seat is rotatably connected with a rotating block through an axle rod, one end of the rotating block is fixedly connected with a sealing plate, and one end of the sealing plate contacts an inner wall of the placement groove, an arc shell is provided on the outer side of the sealing plate, and one end of the arc shell is fixedly connected to the inner wall of the placement groove, an arc block is slidably connected to the inside of the arc shell, one side of the arc block is fixedly connected with a compression spring, and one end of the compression spring is fixedly connected to the inner wall of the placement groove, and the other side of the arc block is fixedly connected with an arc plate, and one end of the arc plate is fixedly connected to the outer wall of the sealing plate.

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