CN211146067U

CN211146067U - Special-shaped honeycomb type hydrogen high-pressure storage and transportation device

Info

Publication number: CN211146067U
Application number: CN201922108422.1U
Authority: CN
Inventors: 耿海滨
Original assignee: Nantong Haowei Intelligent Manufacturing Technology Co ltd
Current assignee: Nantong Haowei Intelligent Manufacturing Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-31
Anticipated expiration: 2029-11-29

Abstract

The application discloses dysmorphism honeycomb formula hydrogen high pressure storage and transportation device, the device includes a gas storage structure, gas storage structure includes outside casing, outside casing centers on and forms the inner core cavity, be formed with crisscross continuous truss rib in the inner core cavity, truss rib will the inner core cavity separates for a plurality of independent cavities, independent cavity at least with one rather than adjacent independent cavity intercommunication. The utility model discloses under the same volume and the hydrogen storage quality condition, weight only is 30% ~40% of traditional metal gas holder, and the cost only is 60% of full carbon fiber winding gas holder.

Description

Special-shaped honeycomb type hydrogen high-pressure storage and transportation device

Technical Field

The application relates to a hydrogen high-pressure storage and transportation structural unit, in particular to a special-shaped honeycomb type hydrogen high-pressure storage and transportation device.

Background

In 2019, the related content of hydrogen energy is brought into the government work report for the first time in China, and the hydrogen energy industry forms the main industry clusters of Jingjin Ji, Changtriangle, Zhu triangle and the like which are widely centered in the north. Now it has entered the demonstration stage of industrial scale and will explore the commercial operation in the future.

The fundamental problem of hydrogen energy development at the present stage is that the storage and transportation links are developed and lagged. The hydrogen volume energy density is extremely low, the hydrogen is extremely easy to explode, the hydrogen dispersed in various places is efficiently distributed to the hydrogen filling station, and the distributed use (such as hydrogen energy automobiles, distributed hydrogen energy power supply and the like) is ensured to be safe and reliable, so that the improvement of the storage and transportation efficiency and the hydrogen quality are important bottlenecks in the large-scale development of the hydrogen energy industry, and the safe, efficient and cheap hydrogen storage and transportation technology becomes the key for realizing the commercial application of the hydrogen energy.

The high-pressure gaseous hydrogen storage tank is a mainstream mobile hydrogen storage and transportation device in the industry at present, a vehicle-mounted hydrogen storage tank of a passenger vehicle generally stores about 6kg of high-pressure hydrogen, the driving mileage (600 km) is ensured, the volume and the weight of the hydrogen storage tank are respectively about 240L and 130kg, the foreign hydrogen storage pressure is 70MPa, the domestic pressure is 35MPa, metal materials are mostly adopted, the efficiency is low, the volume is large, the weight is remarkable, the cost is extremely high, the hydrogen storage tank can only be used for large vehicles such as buses and trucks, the like, the foreign hydrogen storage tank generally adopts a structure that a metal inner container is wound with carbon fibers, the cost of a high-pressure hydrogen storage bottle of the passenger vehicle is estimated to be 5-6 ten thousand yuan, wherein the cost of the carbon fiber material is about 60-70%, Japan is the largest carbon fiber export country in the world, the global market occupancy exceeds 95%, and Japanese hydrogen fuel cell vehicles have the cost advantage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-pressure storage and transportation device of dysmorphism honeycomb formula hydrogen realizes the high-pressure warehousing and transportation of hydrogen.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses special-shaped honeycomb type hydrogen high-pressure storage and transportation device, which comprises a gas storage structure, wherein the gas storage structure comprises an outer shell, the outer shell surrounds to form an inner cavity, truss ribs which are connected in a staggered mode are formed in the inner cavity, the truss ribs divide the inner cavity into a plurality of independent chambers, and the independent chambers are at least communicated with one independent chamber adjacent to the independent chambers.

Compared with the prior art, the utility model breaks the design idea of the circular cavity section of the traditional gas storage tank, provides a multi-chamber high-pressure gas storage structure with a complex inner chamber, the structural characteristic is similar to a honeycomb, the multi-chamber structure is independent or communicated, the high-strength aluminum alloy is adopted for manufacturing, the pressure requirement of compressed hydrogen can be met only by the strength of the material body, the high-cost carbon fiber winding technology is not needed, the bearing capacity of the gas storage tank is derived from truss ribs and high-strength shells which are connected in a criss-cross way of the inner chamber, the non-traditional gas storage tank only depends on the strength of the shells, the internal pressure born by the shells is effectively shared by the structural characteristic of the inner chamber through numerical simulation analysis, the volume and the distribution of the cavities can be designed according to the bearing range, the design pressure can be continuously adjusted within the yield limit range of the material, the weight of the gas storage tank is only 30-40% of that of the traditional metal gas storage tank, and the cost of the gas storage tank is only 60% of that of the gas storage tank wound by all carbon fibers.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a sectional view of a special-shaped honeycomb type hydrogen high-pressure storage and transportation device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the irregular honeycomb type high-pressure hydrogen storage and transportation device comprises a gas storage structure, wherein the gas storage structure comprises an outer shell 100, the outer shell 100 surrounds to form an inner cavity, truss ribs 200 which are connected in a staggered manner are formed in the inner cavity, the truss ribs 200 divide the inner cavity into a plurality of independent chambers 300, and the independent chambers 300 are at least communicated with one independent chamber 300 adjacent to the independent chamber 300.

Among this technical scheme, at first according to service environment, design appearance such as mode, the utility model provides a high pressure gas storage device not only limits to the circular appearance of picture representation, can design into any other special-shaped shape, and the assembly is fixed in the in-service use of being convenient for, improves space utilization, confirms to confirm the material according to the environmental status of being on active after the appearance, obtains body material yield limit value, carries out numerical simulation, stress analysis according to requirements such as pressure, gas storage (quality) space again, designs independent or the multi-chambered inner structure of intercommunication, carries out structural strength check at last. The complex inner cavity structure adopts the traditional material reducing processing method to be difficult to realize, and the utility model discloses a to this structural feature, adopt an additive manufacturing method, diffusion welding layering entity manufacturing approach, manufacturing the utility model discloses a complex inner cavity structure, but the utility model discloses not only be limited to this manufacturing method, other techniques such as laser selective melting technique can also realize, but its more diffusion welding layering entity manufacturing approach inefficiency, with high costs.

The manufacturing method of the special-shaped honeycomb type hydrogen high-pressure storage and transportation device sequentially comprises the following steps:

s1 determining the shape of the outer case 100;

s2, designing the shape of the truss rib 200 by adopting software;

s3, 3D printing subdivision software is adopted to carry out equal-thickness or non-equal-thickness layering, the number of layering layers is determined by the number of horizontal planes where the independent chambers 300 are located, and at least three groups of positioning devices are arranged;

s4, processing layer by laser engraving, precision milling or chemical etching;

s5 stacking, assembling and positioning in sequence according to the digital-analog sequence;

s6 adopting diffusion welding equipment at vacuum degree of 5 × 10^-4Carrying out primary welding forming under the conditions of Pa, pressure of 6MPa, temperature of 460-520 ℃ and heat preservation and pressure maintaining for 2 hours, cooling to 200 ℃ along with the furnace, taking out and naturally cooling to room temperature;

s7 welding end enclosure structures at two sides of the outer shell 100 to connect the inflation inlet and the air outlet, wherein the end enclosure structures are provided with pressure sensors and temperature sensors.

Compared with the prior art, the utility model discloses the beneficial result of obtaining is that the gas storage inner chamber is effectively separated to inner chamber multi-chambered honeycomb structure, and link to each other with outer wall an organic whole, the atress mode that traditional gas holder relied on outer wall intensity to bear interior pressure has been changed, inside vertically and horizontally staggered's cavity wall rib has the effect of strengthening outer wall and partial pressure, according to the volume proportion of cavity and entity part, this structure bearing capacity can be close to the yield limit of entity material, show the pressure resistance who improves gas storage device, be particularly useful for the higher hydrogen warehousing and transportation of design pressure, because of the technical thought that adopts the vibration material disk, the structure does not receive the appearance restriction, can design for special-shaped structure, be particularly useful for hydrogen energy source car, combine automobile body structural design, can be at the automobile body, the chassis class of position rational use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The special-shaped honeycomb type high-pressure hydrogen storage and transportation device is characterized by comprising a gas storage structure, wherein the gas storage structure comprises an outer shell, the outer shell surrounds to form an inner cavity, truss ribs which are connected in a staggered mode are formed in the inner cavity, the truss ribs divide the inner cavity into a plurality of independent chambers, and the independent chambers are at least communicated with one independent chamber adjacent to the independent chambers.