CN111911801A - Hydrogen storage container and hydrogen delivery system - Google Patents

Abstract

The present application relates to the technical field of hydrogen storage devices, and in particular, to a hydrogen storage container and a hydrogen transport system. The hydrogen storage container includes a sealed tank and an intake pipe; the sealed tank is filled with hydrogen storage material, and the intake pipe runs through the sealed tank; the intake pipe includes a communication part and a distribution part that communicate with each other; the The communication part is located outside the sealed tank and is used to communicate with the hydrogen transport equipment; the distribution part is located in the sealed tank, the distribution part is bent into a spiral shape, and the distribution part is provided with a plurality of spaced Air hole. The hydrogen storage container provided by the present application increases the flow area of hydrogen by arranging a helical air intake pipe in the airtight tank, and opening a plurality of air transmission holes on the air intake pipe, so that the flow area of the hydrogen gas is increased, so that the air in the airtight tank is The hydrogen absorption capacity of the hydrogen storage material is more uniform, thereby improving the overall hydrogen absorption capacity of the hydrogen storage material.

Description

Hydrogen storage container and hydrogen transmission system

technical field

The present application relates to the technical field of hydrogen storage devices, and in particular, to a hydrogen storage container and a hydrogen transport system.

Background technique

The use of hydrogen energy involves three key links: production, storage and transportation, and utilization. At present, the main hydrogen storage methods are: high-pressure gas hydrogen, low-temperature liquid hydrogen and material hydrogen storage, relatively high-pressure gas hydrogen and low-temperature liquid hydrogen storage methods, and material hydrogen storage methods have low pressure, safety and convenience. In the prior art, the hydrogen absorption capacity of the hydrogen storage materials in the hydrogen storage tank is uneven, which reduces the hydrogen storage capacity and the hydrogen storage and hydrogen release rates.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a hydrogen storage container and a hydrogen transport system for storage and transportation of hydrogen energy, which can make the hydrogen absorption capacity of the hydrogen storage material more uniform and increase the hydrogen storage capacity.

The application provides a hydrogen storage container, including a sealed tank and an air intake pipe;

The airtight tank is filled with hydrogen storage material, and the air inlet pipe runs through the airtight tank;

The intake pipe includes a communicating part and a emitting part that communicate with each other; the communicating part is located outside the sealing tank and is used for communicating with the hydrogen transport equipment; the emitting part is located in the sealing tank, and the emitting part is curved It is in a spiral shape, and the distributing part is provided with a plurality of air-transporting holes arranged at intervals.

In the above technical solution, further, the sealing pot is cylindrical, and the helical centerline of the emitting portion is collinear with the axis of the sealing pot;

The ratio of the helical diameter of the emitting portion to the inner diameter of the airtight can is 1/3˜2/3.

In the above technical solution, further, an installation port is opened on the top of the sealed tank, and the air intake pipe runs through the installation port;

The dispensing portion extends from the top of the canister to the bottom of the canister.

In the above technical solution, further, a plurality of the air transmission holes are arranged at intervals along the lengthwise extending direction of the dispersing portion, and the plurality of air conveying holes are arranged at intervals along the circumference of the pipe of the dispersing portion.

In the above technical solution, further, at least the outer surface of the distributing part at the position where the air delivery hole is opened is covered with a filter screen.

In the above technical solution, further, it also includes a plurality of heaters;

A plurality of the heaters extend from the bottom of the airtight tank to the top of the airtight tank; one of the heaters is located in the center of the airtight tank, and the rest of the heaters are evenly distributed in the distribution part and all the heaters. on a first predetermined circumference between the side walls of the sealed can, and the axis of the sealed can passes through the center of the first predetermined circumference.

In the above technical solution, further, it also includes a plurality of temperature sensors;

A plurality of the temperature sensors are arranged at intervals on a second preset circumference, the second preset circumference is located between the first preset circumference and the side wall of the airtight tank, and the axis of the airtight tank passes through. passing through the center of the second preset circle;

The temperature sensor is provided at a position of at least one of the heaters mapped on the second preset circumference, and the temperature sensor is provided between two adjacent heaters.

In the above technical solution, further, the sealing tank includes a tank body formed with a filling port and a first sealing cover installed on the filling port, and the first sealing cover is detachably connected to the tank body to enabling the hydrogen storage material to enter the tank from the filling port;

A second sealing cover is provided at the gas delivery port of the communicating portion, and the second sealing cover is detachably connected to the communicating portion.

In the above technical solution, it further includes a support; the support includes a plurality of spaced legs connected with the sealing tank to support the sealing tank.

The present application also provides a hydrogen transport system, including the hydrogen storage container described in the above solution.

Compared with the prior art, the beneficial effects of the present application are:

The hydrogen storage container provided by the present application increases the flow area of hydrogen by arranging a helical air inlet pipe in the airtight tank, and opening a plurality of air holes on the air inlet pipe, so that the flow area of the hydrogen gas is increased, so that the air in the airtight tank is The hydrogen absorption capacity of the hydrogen storage material is more uniform, thereby improving the overall hydrogen absorption capacity of the hydrogen storage material.

The present application also provides a hydrogen transport system, including the hydrogen storage container described in the above solution. Based on the above analysis, it can be seen that the hydrogen transmission system also has the above beneficial effects, which will not be repeated here.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. The drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a partial cross-sectional structural schematic diagram of a hydrogen storage container provided by the application;

FIG. 2 is a schematic structural diagram of a cross-section of the hydrogen storage container provided by the present application.

In the figure: 101-sealing tank; 102-air intake pipe; 103-communication part; 104-distribution part; 105-heater; 106-first preset circumference; 107-temperature sensor; 108-second preset circumference; 109-filling port; 110-tank body; 111-first sealing cover; 112-air delivery port; 113-second sealing cover; 114-support; 115-leg.

Detailed ways

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

Example 1

Referring to FIG. 1 and FIG. 2 , the hydrogen storage container provided by the present application includes a sealed tank 101 and an intake pipe 102 . The sealed tank 101 is filled with a hydrogen storage material. Preferably, the hydrogen storage material is a magnesium-based solid hydrogen storage material. The magnesium-based solid hydrogen storage method has the advantages of low pressure required for hydrogen storage and hydrogen release, and safe and convenient operation. The gas inlet pipe 102 penetrates through the sealed tank 101 , so that the hydrogen transport equipment can transport hydrogen gas into the sealed tank 101 through the gas inlet pipe 102 .

Specifically, the intake duct 102 includes a communicating portion 103 and a emitting portion 104 that communicate with each other. The portion of the intake duct 102 outside the airtight tank 101 is the communicating portion 103, which is used to communicate with the hydrogen transport equipment; the air intake duct 102 is located in the airtight tank. The part inside 101 is the distribution part 104, the distribution part 104 is provided with a plurality of gas transmission holes arranged at intervals, the hydrogen can flow out from the gas transmission holes and flow into the hydrogen storage material, and the distribution part 104 is bent into a spiral shape, extending the transmission time. The gas path increases the flow area of hydrogen gas and expands the gas transmission range of the intake pipe 102 , so that the hydrogen absorption amount of the hydrogen storage material located at each position in the airtight tank 101 is more uniform.

In the hydrogen storage container provided by the present application, by arranging a helical air inlet pipe 102 in the airtight tank 101 and opening a plurality of air transmission holes in the air inlet pipe 102, the flow area of hydrogen gas is increased, so that the airtight tank 101 The hydrogen absorption capacity of the hydrogen storage materials throughout the interior is more uniform, thereby increasing the overall hydrogen absorption capacity of the hydrogen storage materials.

In an optional solution of this embodiment, the sealing pot 101 is cylindrical, and the helical centerline of the radiating portion 104 is collinear with the axis of the sealing pot 101 , that is, the emitting portion 104 is arranged in the middle of the sealing pot 101, that is, the emitting portion 104 is arranged in the middle of the sealing pot 101 The distance between the part 104 and the side wall of the sealed tank 101 is equal, thereby ensuring that the hydrogen absorption amount of the hydrogen storage material at each position in the sealed tank 101 is more uniform.

For the sealed cans 101 with different thicknesses, the helical diameters of the radiating parts 104 are also different. Specifically, the ratio of the helical diameters of the emitting parts 104 to the inner diameter of the sealed cans 101 is 1/3-2/3. Referring to FIG. 2 , D1 shown in the figure is the helical diameter of the emitting portion 104 , D2 is the inner diameter of the airtight can 101 , and the ratio of D1 to D2 is 1/3˜2/3. It should be noted that the airtight can 101 may be a cylindrical shape with uniform thickness or a cylindrical shape with a gradual thickness, and the helical diameter of the radiating portion 104 changes with the change of the inner diameter of the airtight can 101 .

In an optional solution of this embodiment, the top of the sealed can 101 is provided with an installation opening, and the air inlet pipe 102 penetrates through the installation opening;

Generally speaking, from the bottom to the top of the sealed tank 101 , most of the space of the sealed tank 101 is filled with the hydrogen storage material. In this embodiment, the emitting portion 104 extends from the top of the airtight tank 101 to the bottom of the airtight tank 101 , and covers all the hydrogen storage materials in the airtight tank 101 in the height direction, further ensuring that the hydrogen storage materials in the tank body 110 Hydrogen absorption is more uniform.

In an optional solution of this embodiment, a plurality of air transport holes are arranged at intervals along the lengthwise extending direction of the radiating portion 104, and the plurality of air transport holes are arranged at intervals along the circumference of the pipe of the radiating portion 104 to ensure that they are located in the intake duct The hydrogen storage materials around 102 are all capable of absorbing hydrogen.

In an optional solution of this embodiment, at least the outer surface of the distributing portion 104 at the position where the air transmission hole is opened is covered with a filter screen, which is used to prevent the magnesium-based solid hydrogen storage material from entering the air intake pipe 102 from the air transmission hole. Block the pipeline and affect the transmission of gas. Preferably, the filter screen is made of stainless steel to prevent the filter screen from being corroded.

In an optional solution of this embodiment, the hydrogen storage container further includes a plurality of heaters 105, and the plurality of heaters 105 extend from the bottom of the airtight tank 101 to the top of the airtight tank 101, so that the height of the heaters 105 is the same as that of the hydrogen storage material. The height of the hydrogen storage material may be appropriately higher than the height of the heater 105 due to the effect of heat conduction between the hydrogen storage materials.

Referring to FIG. 2 , one of the heaters 105 is located in the center of the sealed can 101 , and the remaining heaters 105 are evenly distributed on the first predetermined circumference 106 between the distribution part 104 and the side wall of the sealed can 101 , and the sealed can 101 The axis passes through the center of the first predetermined circumference 106 . The arrangement of the heaters 105 in this way enhances the heat transfer effect, makes the heat distribution more uniform, and improves the rate of hydrogen absorption and desorption; at the same time, when a single or part of the heaters 105 fails, the remaining heaters 105 can also continue to heat , does not affect the overall operation of the device. Optionally, the heater 105 is specifically an electric heater, and is detachably connected to the airtight tank 101, so that the electric heating rod can be flexibly and conveniently replaced when a fault occurs.

In an optional solution of this embodiment, the hydrogen storage container further includes a plurality of temperature sensors 107 ; the plurality of temperature sensors 107 are arranged at intervals on the second preset circumference 108 , and the second preset circumference 108 is located on the first preset circumference 106 Between the side wall of the sealed pot 101, the axis of the sealed pot 101 passes through the center of the second preset circumference 108; a temperature sensor 107 is provided at the position where at least one heater 105 is mapped to the second preset circumference 108, adjacent to the A temperature sensor 107 is provided between the two heaters 105 .

In this embodiment, a plurality of temperature sensors 107 are arranged on the second preset circumference 108 at a certain distance near the side wall of the sealed tank 101, so as to monitor the temperature of the internal magnesium-based solid hydrogen storage material and the temperature of the electric heater at different positions . Among them, the distance between the temperature sensor 107 and the heater 105 at the position where the heater 105 is mapped to the second preset circumference 108 is the closest, and relatively speaking, the detected temperature is the highest value. Two places are shown in FIG. 2; There are multiple temperature sensors 107 between two adjacent heaters 105, wherein the temperature sensor 107 located in the middle is equidistant from the two adjacent heaters 105, and the distance from the two adjacent heaters 105 is the farthest. The temperature is the lowest value; in order to ensure more accurate detection, a temperature sensor 107 for detecting the intermediate temperature is also set between two adjacent heaters 105, and between two adjacent heaters 105, it is closer to it. One heater 105 and the other heater 105 away.

Specifically, the temperature sensor 107 may be a component such as a thermocouple.

Embodiment 2

The hydrogen storage container in the second embodiment is an improvement on the basis of the above-mentioned embodiment. The technical content disclosed in the above-mentioned embodiment is not described repeatedly, and the content disclosed in the above-mentioned embodiment also belongs to the content disclosed in the second embodiment.

In an optional solution of this embodiment, the sealed tank 101 includes a tank body 110 formed with a filling port 109 and a first sealing cover 111 installed on the filling port 109. The first sealing cover 111 is detachably connected to the tank body 110, specifically , the first sealing cover 111 and the tank body 110 can be flanged, and the first sealing cover 111 can be opened when filling materials, so that the hydrogen storage material can enter the tank body 110 from the filling port 109 .

A second sealing cover 113 is disposed at the gas delivery port 112 of the communicating portion 103 , and the second sealing cover 113 is detachably connected to the communicating portion 103 . Specifically, the second sealing cover 113 and the communicating portion 103 may be flanged. Open the flange cover of the hydrogen gas delivery port 112, connect the system supply pipeline, and vacuumize the sealed tank 101. After a certain period of time, the vacuuming operation of the device is completed; then hydrogen is introduced from the gas delivery port 112 to make the sealed tank The interior of 101 is filled with hydrogen and maintains a certain pressure.

In an optional solution of this embodiment, the hydrogen storage container further includes a support 114 ; the support 114 includes a plurality of evenly spaced support legs 115 connected to the airtight tank 101 to stably support the airtight tank 101 .

The following introduces the specific technological process when the device is used:

First, open the flange cover at the filling port 109 of the hydrogen storage material, fill the magnesium-based solid hydrogen storage material into the tank 110, cover the flange cover, and seal it with bolts; open the hydrogen gas supply port 112 The flange cover is connected to the system supply pipeline, and the airtight tank 101 is evacuated. After a certain period of time, the vacuuming operation of the device is completed; then hydrogen is introduced from the gas port 112 to fill the airtight tank 101 with hydrogen and maintain a certain amount of hydrogen. pressure.

Then, the electric heater is turned on to heat the magnesium-based solid-state hydrogen storage material inside the sealed tank 101. The thermocouple monitors the temperature inside the sealed tank 101. When the hydrogen absorption temperature is reached, the heating is stopped, and the hydrogen storage material begins to absorb hydrogen. When hydrogen is supplied, the intake pipe 102 is always in the hydrogen supply state until the hydrogen absorption is completed. The hydrogen absorption process is an exothermic process, and a part of the heat generated is used to maintain the heat required for the subsequent hydrogen absorption of the device, and the excess heat can be transferred to the outside through the tank 110; by monitoring the pressure or flow change of the intake pipe 102, it can be determined Whether the hydrogen absorption is completed; the hydrogen release is an endothermic process, in order to ensure the smooth progress of the hydrogen release process, it is also necessary to keep the electric heater turned on during the hydrogen release process until the end of the hydrogen release process.

Embodiment 3

The third embodiment of the present application provides a hydrogen transport system, which includes the hydrogen storage container of any of the above-mentioned embodiments. Therefore, it has all the beneficial technical effects of the hydrogen storage container of any of the above-mentioned embodiments, and will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope. Furthermore, those skilled in the art will appreciate that although some of the embodiments herein include certain features, but not others, included in other embodiments, that combinations of features of different embodiments are intended to be within the scope of this application And form different embodiments.

Claims (10)

1. A hydrogen storage container is characterized by comprising a sealed tank and an air inlet pipeline;

the sealing tank is filled with hydrogen storage materials, and the air inlet pipeline penetrates through the sealing tank;

the air inlet pipeline comprises a communicating part and a dispersing part which are communicated with each other; the communicating part is positioned outside the sealed tank and is used for communicating with hydrogen conveying equipment; the diffusion part is positioned in the sealing tank, the diffusion part is bent into a spiral shape, and the diffusion part is provided with a plurality of air transmission holes which are distributed at intervals.

2. The hydrogen storage vessel of claim 1, wherein the canister is cylindrical, and the spiral center line of the emission portion is collinear with the axis of the canister;

the ratio of the spiral diameter of the emitting part to the inner diameter of the sealing tank is 1/3-2/3.

3. The hydrogen storage container according to claim 1, wherein a mounting opening is opened at the top of the sealed tank, and the gas inlet pipe penetrates through the mounting opening;

the emanator extends from the top of the canister to the bottom of the canister.

4. The hydrogen storage container according to claim 1, wherein a plurality of the gas delivery holes are arranged at intervals along a length extension direction of the emitting portion, and a plurality of the gas delivery holes are arranged at intervals along a circumferential direction of the pipe of the emitting portion.

5. The hydrogen storage container as claimed in claim 1, wherein a filter net is coated on an outer surface of at least a position where the emission part is opened with the gas transmission hole.

6. The hydrogen storage vessel of claim 2 further comprising a plurality of heaters;

a plurality of the heaters extending from a bottom of the seal pot to a top of the seal pot; one of the heaters is located at the center of the seal pot, the rest of the heaters are uniformly distributed on a first preset circumference between the emission part and the side wall of the seal pot, and the axis of the seal pot penetrates through the circle center of the first preset circumference.

7. The hydrogen storage vessel of claim 6 further comprising a plurality of temperature sensors;

the temperature sensors are arranged on a second preset circumference at intervals, the second preset circumference is positioned between the first preset circumference and the side wall of the seal tank, and the axis of the seal tank penetrates through the circle center of the second preset circumference;

the temperature sensor is arranged at the position of at least one heater, which is mapped on the second preset circumference, and the temperature sensor is arranged between every two adjacent heaters.

8. The hydrogen storage vessel of claim 1, wherein the sealed canister comprises a canister body formed with a filling port and a first sealing cap mounted to the filling port, the first sealing cap being detachably connected to the canister body to allow the hydrogen storage material to enter the canister body from the filling port;

the gas transmission port of the communicating part is provided with a second sealing cover, and the second sealing cover is detachably connected with the communicating part.

9. The hydrogen storage vessel of claim 1 further comprising a stand; the support comprises a plurality of support legs which are connected with the sealing tank and distributed at intervals so as to support the sealing tank.

10. A hydrogen delivery system comprising a hydrogen storage vessel according to any one of claims 1 to 9.

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