Refrigeration type rapid hydrogen filling device

Abstract

The utility model provides a refrigeration type quick hydrogen filling device which comprises a water storage bottle, a water pump, a hydrogen generator, a water removal device and a drying device, the water storage bottle is connected to the hydrogen generator through the water pump and a water pipe, and a hydrogen outlet of the hydrogen generator is sequentially connected with the water removal device and the drying device through pipelines. The air outlet end of the drying device is connected to the refrigeration air inflation chamber through a pipeline, the refrigeration air inflation chamber comprises a hydrogen cylinder inserting groove and a semiconductor refrigeration piece, the cold end of the semiconductor refrigeration piece is attached to the side wall of the hydrogen cylinder inserting groove, a hydrogen cylinder butt joint opening is formed in the hydrogen cylinder inserting groove, and a copper pipe radiator is arranged at the hot end of the semiconductor refrigeration piece. The device is compact in structure, and can be carried to a detection site of a gas chromatograph to inflate a hydrogen cylinder. A low-temperature inflation environment can be provided for the hydrogen cylinder through the refrigeration inflation chamber, and the problems that in the inflation process of the hydrogen cylinder, inflation is slow and the inflation efficiency is low due to heating of the hydrogen cylinder are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the field of hydrogen filling equipment, and particularly relates to a device for refrigerated and rapid hydrogen filling. Background Art

[0002] Hydrogen is one of the commonly used carrier gases in gas chromatographs. It is mostly stored in special hydrogen cylinders, which can be refilled repeatedly for reuse. The hydrogen filling of hydrogen cylinders mostly uses pipelines to connect to large steel cylinders for filling, and it needs to be refilled multiple times to complete the filling, with low efficiency. In addition, large steel cylinders are relatively bulky and cannot be carried to the gas chromatograph detection site for use. In the prior art, there are also some hydrogen generation devices that can directly produce high-purity hydrogen at the detection site. For example, the utility model patent with the application number 2021222206914 proposes a high-purity hydrogen generator for laboratories, which includes a storage water tank, an SPE electrolysis device, and a hydrogen-water separator. An air drying tube I and an air drying tube II are arranged below the hydrogen-water separator. This generator can directly produce high-purity hydrogen in the laboratory, and the prepared hydrogen can be directly used, but it cannot be quickly filled into the hydrogen cylinder for use in gas chromatograph detection. Summary of the Invention

[0003] Aiming at the technical problem that the existing hydrogen generator can produce hydrogen but cannot quickly fill the hydrogen cylinder, the utility model provides a refrigerated and rapid hydrogen filling device that can be carried to the detection site.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] A refrigerated and rapid hydrogen filling device includes a water storage bottle, a water pump, a hydrogen generator, a water removal device, and a drying device. The water storage bottle is connected to the hydrogen generator through the water pump and a water pipe. The hydrogen outlet of the hydrogen generator is connected to the water removal device and the drying device in sequence through pipelines. The gas outlet end of the drying device is connected to a refrigerated filling chamber through a pipeline. The refrigerated filling chamber includes a hydrogen cylinder slot and a thermoelectric cooler. The cold end of the thermoelectric cooler is attached to the side wall of the hydrogen cylinder slot, and a hydrogen cylinder docking interface is arranged in the hydrogen cylinder slot. A radiator is arranged at the hot end of the thermoelectric cooler.

[0006] Preferably, the side wall of the hydrogen cylinder slot without the installed thermoelectric cooler is coated with a heat insulation layer, and a heat insulation pad is installed on the bottom wall of the hydrogen cylinder slot.

[0007] Preferably, a liquid level detector is installed on the water storage bottle.

[0008] Preferably, a warning light is arranged on the liquid level detector, and the warning light flashes when the liquid level is lower than the set value.

[0009] Preferably, a cooling fan is installed on one side of the hydrogen generator.

[0010] Preferably, a pressure safety device and a hydrocarbon removal device are further provided between the drying device and the refrigeration and inflation chamber.

[0011] Preferably, the pressure safety device includes an electronic pressure gauge, a mechanical pressure gauge and a safety relief valve.

[0012] Preferably, the drying device includes a drying cylinder, in which a desiccant, an isolation layer and molecular sieves are installed from bottom to top.

[0013] Preferably, the water outlet of the water removal device is connected to a water storage bottle through a water pipe.

[0014] Preferably, it further includes a quick pull handle, which includes a handle fixing block installed on the side wall of the gas cylinder refrigeration cavity. The handle fixing block is connected to a pull sleeve, and the pull sleeve is connected to a pull plate fixing block. A locking tongue extending into the gas cylinder refrigeration cavity and pressing against the hydrogen gas cylinder is installed in the pull sleeve. A linear bearing sleeved on the locking tongue is further provided in the pull sleeve, and a compression spring is installed between the linear bearing and the locking tongue. A pull plate connected to the locking tongue is installed in the pull plate fixing block. Pulling the pull plate will move the locking tongue backward to release the hydrogen gas cylinder.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] The device for refrigerated rapid filling of hydrogen gas of the present utility model has a compact structure and can be carried to the detection site of a gas chromatograph to fill the hydrogen gas cylinder. The refrigeration and inflation chamber can provide a low-temperature inflation environment for the hydrogen gas cylinder, effectively solving the problems of slow filling and low filling efficiency of the hydrogen gas cylinder due to its own heat generation during the filling process.

[0017] The device for refrigerated rapid filling of hydrogen gas is equipped with a pressure safety device, which can effectively detect the internal pressure of the instrument and is provided with a safety relief valve to automatically relieve pressure when the pressure is too high, effectively ensuring the safety during the use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic external structure diagram of the device for refrigerated rapid filling of hydrogen gas of the present utility model;

[0019] Figure 2 is a schematic internal structure diagram of the device for refrigerated rapid filling of hydrogen gas of the present utility model;

[0020] Figure 3 is another schematic internal structure diagram of the device for refrigerated rapid filling of hydrogen gas of the present utility model;

[0021] Figure 4 is a schematic partial structure diagram of the refrigeration and inflation chamber of the device for refrigerated rapid filling of hydrogen gas of the present utility model;

[0022] Figure 5 Schematic diagram of the structure of the quick pull part of the device for quickly filling hydrogen in a refrigeration type of the present utility model;

[0023] In the above figures: 1. Water storage bottle; 11. Liquid level detector; 12. Warning light; 2. Water pump; 3. Hydrogen generator; 31. Heat dissipation fan; 4. Water removal device; 5. Drying device; 6. Pressure safety device; 61. Electronic pressure gauge; 7. Hydrocarbon removal device; 8. Refrigeration and filling chamber; 81. Hydrogen cylinder slot; 82. Semiconductor refrigeration sheet; 83. Temperature controller; 84. Copper tube radiator; 85. Thermal insulation layer; 86. Heat insulation pad; 87. External interface; 9. Quick pull; 91. Pull handle fixing block; 92. Pull handle sleeve; 93. Pulling plate fixing block; 94. Lock tongue; 95. Linear bearing; 96. Pulling plate; 10. Outer shell; 20. Hydrogen cylinder. Specific embodiments

[0024] In order to better understand the present utility model, specific descriptions will be made below in conjunction with the drawings and embodiments.

[0025] Embodiment: As Figures 1-3 shown, a device for quickly filling hydrogen in a refrigeration type includes a water storage bottle 1, a water pump 2, a hydrogen generator 3, a water removal device 4, a drying device 5, a pressure safety device 6, a hydrocarbon removal device 7, and a refrigeration and filling chamber 8, and further includes an outer shell 10. The water storage bottle 1 is used to store the water source required for the hydrogen generator 3 to electrolyze water to produce hydrogen. The water delivery bottle is connected to the hydrogen generator 3 through the water pump 2 and a water pipe. The hydrogen outlet of the hydrogen generator 3 is connected to the water removal device 4 through a pipeline. The gas outlet end of the water removal device 4 is connected to the drying device 5 through a gas pipe. The water outlet of the water removal device 4 is connected to the water storage bottle 1 through a water pipe. The accumulated water in the water removal device 4 is transported into the water storage bottle 1 for producing hydrogen. The gas outlet end of the drying device 5 is connected to the refrigeration and filling chamber 8 through a pipeline. The water in the water storage bottle 1 is pumped into the hydrogen generator 3 by the water pump 2. Hydrogen is produced by the hydrogen generator 3, and after water removal by the water removal device 4, it is further dried by the drying device 5, and then flows through the pressure safety device 6 and the hydrocarbon removal device 7, and finally is transported to the refrigeration and filling chamber 8 to fill the hydrogen cylinder 20 with hydrogen.

[0026] The drying device 5 includes a drying cylinder. The lower end of the drying cylinder is the air inlet end and the upper end is the air outlet end. The drying cylinder is filled with a desiccant, an isolation layer, and molecular sieves from bottom to top. The isolation layer can prevent the desiccant from entering the molecular sieves, and isolation materials such as cotton and non-woven fabric can be selected. A large-air-volume heat dissipation fan 31 is installed on one side of the hydrogen generator 3. The heat dissipation fan 31 can effectively dissipate heat from the hydrogen generator 3 to ensure its normal operation.

[0027] As Figure 4As shown, the refrigeration and gas charging chamber 8 includes a hydrogen cylinder slot 81 for inserting a hydrogen cylinder 20, a semiconductor refrigerating sheet 82 for providing a low-temperature environment for the hydrogen cylinder slot 81, and a temperature controller 83 for controlling the operation of the semiconductor refrigerating sheet 82. The cold end of the semiconductor refrigerating sheet 82 is attached to one side wall of the hydrogen cylinder slot 81. A hydrogen cylinder docking port is provided in the hydrogen cylinder slot 81, and the hydrogen cylinder docking port is connected to the gas outlet end of the hydrocarbon removal device 7 through a pipeline. A radiator is provided at the hot end of the semiconductor refrigerating sheet 82. The radiator can be a copper tube radiator 84, through which heat can be quickly dissipated; it can also be a fan radiator or other forms of radiators. A heat insulation layer 85 is covered on the side wall of the hydrogen cylinder slot 81 where the semiconductor refrigerating sheet 82 is not installed, and a heat insulation pad 86 is installed on the bottom wall of the hydrogen cylinder slot 81. The heat insulation layer 85 and the heat insulation layer can effectively prevent the loss of cold energy to ensure the refrigeration effect. The refrigeration and gas charging chamber 8 can provide a low-temperature gas charging environment for the hydrogen cylinder 20, effectively solving the problems of slow gas charging and low gas charging efficiency of the hydrogen cylinder 20 due to its own heat generation during the gas charging process.

[0028] There are two types of hydrogen cylinder docking ports provided in the hydrogen cylinder slot 81. One is a quick-screw connection port, and the other is a quick-plug connection port, which can be docked with different types of hydrogen cylinders. In addition, an external connection port 87 connected to the gas outlet end of the hydrocarbon removal device 7 is also provided outside the hydrogen cylinder slot 81, and the external connection port 87 can supply hydrogen to other hydrogen-consuming devices.

[0029] A liquid level detector 11 is installed on the water storage bottle 1, and a warning lamp 12 is provided on the liquid level detector 11. When the liquid level detector 11 detects that the water level in the water storage bottle 1 is lower than a preset value, the warning lamp 12 flashes to remind to replenish water to ensure the normal operation of the equipment.

[0030] The pressure safety device 6 includes an electronic pressure gauge 61, a mechanical pressure gauge, and a safety relief valve. The two pressure gauges operate simultaneously and can display the pressure of the instrument more accurately. When the hydrogen pressure in the pipeline is too high, the safety relief valve will automatically exhaust and relieve pressure to ensure the safety and reliability of the entire device during use.

[0031] A quick handle 9 is also installed on the side wall of the gas cylinder refrigeration chamber. The hydrogen cylinder can be quickly locked and released through the quick handle 9. Such as Figure 5As shown in the figure, the quick pull handle 9 includes a handle fixing block 91 fixed on the side wall of the gas cylinder refrigeration chamber. The handle fixing block 91 is connected to a pull sleeve 92, and the pull sleeve 92 is connected to a pull plate fixing block 93. A locking tongue 94 that extends into the gas cylinder refrigeration chamber and presses against the hydrogen gas cylinder is installed in the pull sleeve 92. A linear bearing 95 sleeved on the locking tongue 94 is further provided in the pull sleeve 92. A compression spring is installed between the linear bearing 95 and the locking tongue 94. A pull plate 96 connected to the locking tongue 94 is installed in the pull plate fixing block 93. When the pull plate 96 is not pulled, the front end of the locking tongue 94 presses against the hydrogen gas cylinder under the pressure of the spring. Preferably, a card slot for engaging the locking tongue is provided on the hydrogen gas cylinder. At this time, the hydrogen gas cylinder can be inflated. After the inflation is completed, pulling the pull plate 96 causes the locking tongue 94 to move backward and release the hydrogen gas cylinder, and the hydrogen gas cylinder can be easily pulled out.

[0032] The device for quickly filling hydrogen with refrigeration according to this embodiment has a compact structure and can be carried to the on-site detection of a gas chromatograph to inflate the hydrogen gas cylinder. The refrigeration inflation chamber 8 can provide a low-temperature inflation environment for the hydrogen gas cylinder, effectively solving the problems of slow inflation and low inflation efficiency of the hydrogen gas cylinder caused by its own heat generation during the inflation process.

[0033] The above description is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for rapidly filling hydrogen in a refrigeration type, characterized in that: It includes a water storage bottle, a water pump, a hydrogen generator, a water removal device and a drying device. The water storage bottle is connected to the hydrogen generator via the water pump and a water pipe. The hydrogen outlet of the hydrogen generator is sequentially connected to the water removal device and the drying device via pipelines. The gas outlet end of the drying device is connected to the refrigeration and inflation chamber via a pipeline. The refrigeration and inflation chamber includes a hydrogen cylinder slot and a thermoelectric cooler. The cold end of the thermoelectric cooler is attached to the side wall of the hydrogen cylinder slot. A hydrogen cylinder docking port is provided inside the hydrogen cylinder slot. A radiator is provided at the hot end of the thermoelectric cooler.

2. The device for rapidly filling hydrogen in a refrigeration type according to claim 1, wherein: A heat preservation layer is coated on the side wall of the hydrogen cylinder slot where the thermoelectric cooler is not installed, and a heat insulation pad is installed on the bottom wall of the hydrogen cylinder slot.

3. The device for rapidly filling hydrogen with refrigeration according to claim 1, characterized in that: A liquid level detector is installed on the water storage bottle.

4. The device for quickly filling hydrogen in a refrigeration type according to claim 3, characterized in that: A warning light is provided on the liquid level detector, and the warning light flashes when the liquid level is lower than the set value.

5. The device for rapidly filling hydrogen in a refrigeration type according to claim 1, characterized in that: A cooling fan is installed on one side of the hydrogen generator.

6. The device for rapidly filling hydrogen in a refrigeration type according to claim 1, characterized in that: A pressure safety device and a hydrocarbon removal device are also provided between the drying device and the refrigeration and inflation chamber.

7. The device for rapidly filling hydrogen in a refrigeration type according to claim 6, wherein: The pressure safety device includes an electronic pressure gauge, a mechanical pressure gauge and a safety relief valve.

8. The device for rapidly filling hydrogen with refrigeration according to claim 1, characterized in that: The drying device includes a drying cylinder, in which a desiccant, an isolation layer and molecular sieves are installed from bottom to top.

9. The device for rapidly filling hydrogen with refrigeration according to claim 1, wherein: The water outlet of the water removal device is connected to the water storage bottle via a water pipe.

10. The device for refrigerated rapid filling of hydrogen according to claim 1, characterized in that: It also includes a quick pull handle. The quick pull handle includes a handle fixing block installed on the side wall of the gas cylinder refrigeration cavity. The handle fixing block is connected to a handle sleeve. The handle sleeve is connected to a pull plate fixing block. A locking tongue extending into the gas cylinder refrigeration cavity and pressing the hydrogen cylinder is installed in the handle sleeve. A linear bearing sleeved on the locking tongue is also provided in the handle sleeve. A compression spring is installed between the linear bearing and the locking tongue. A pull plate connected to the locking tongue is installed in the pull plate fixing block. Pulling the pull plate will move the locking tongue backward to release the hydrogen cylinder.

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