KR20230155631A - Hydroen tank for vehicles and drone - Google Patents

Abstract

The present invention relates to a hydrogen tank for vehicles and drones. In addition to storing hydrogen, it is mounted on a loading box provided in transportation equipment such as vehicles or drones, and can quickly supply hydrogen to objects that need hydrogen, and has an internal tank. The purpose is to minimize thermal conductivity by protecting against radiant heat and at the same time maintain the gap between the external tank and the internal tank, and to maintain its shape stably by suppressing vertical and horizontal movement of the internal tank.
The hydrogen tank for vehicles and drones according to the present invention includes an external tank mounted on transportation equipment such as a vehicle or drone; An inner tank accommodated in the inner space of the outer tank, the outer surface of which is spaced apart from the inner surface of the outer tank, and a storage space formed therein; And a fixing part that connects the inner surface of the outer tank and the outer surface of the inner tank to secure the inner tank to the outer tank.

Description

Hydrogen tanks for vehicles and drones {HYDROEN TANK FOR VEHICLES AND DRONE}

The present invention relates to a hydrogen tank for vehicles and drones, and more specifically, to store hydrogen and to be mounted in a loading box provided in transportation equipment such as vehicles or drones, so that hydrogen can be quickly supplied to objects that need hydrogen. Vehicles and drones that can protect the inner tank from radiant heat, minimize thermal conductivity, maintain the gap between the outer and inner tanks, and maintain a stable shape by suppressing vertical and horizontal movement of the inner tank. The purpose is to provide hydrogen tanks for use.

Recently, the demand for energy has been continuously increasing due to the rapid development of industrialization and increase in population. Accordingly, there is an urgent need for alternative energy supply due to the depletion of fossil fuels. In particular, in the case of Korea, energy consumption is ranked among the top 10 in the world. Although we are consuming such a large amount of energy, we are dependent on foreign imports for more than 90% of the energy we use, so measures to secure energy are urgently needed.

Accordingly, hydrogen fuel is being considered as an alternative energy that is attracting attention to solve the complex energy problems facing the world.

This hydrogen fuel is not only the most abundant element on Earth after carbon and nitrogen, but is also a clean energy source that generates only a very small amount of nitrogen oxides during combustion and does not emit any other pollutants, and is a source of abundant energy that exists on Earth. It can be made using water as a raw material, and since it is recycled back to water after use, it can be said to be an optimal alternative energy source with no fear of depletion.

The most important challenge in using this hydrogen fuel is how to store hydrogen. Methods for storing hydrogen include compressing and storing hydrogen gas, storing it by liquefying it, or using a hydrogen storage alloy. However, the technology currently in use uses a method of compressing and storing hydrogen gas. there is. However, vaporized hydrogen has a small storage capacity and poor storage efficiency, so liquefied hydrogen is attracting attention as a form of storage and transportation in the future liquefied hydrogen energy society.

Here, liquid hydrogen refers to hydrogen gas that has been 'liquefied' like water. The liquid hydrogen storage method is to cool and store hydrogen at a cryogenic temperature (-253 degrees Celsius), producing about 240 times more hydrogen than gaseous hydrogen based on atmospheric pressure. You can save it. In addition, it has the highest energy storage density per unit volume and unit weight, and has the advantage of being able to be utilized immediately through simple vaporization without the need for other processes.

In addition, as the hydrogen market grows in the future, large-scale transportation of hydrogen by ship may occur, and among the above methods, the method of liquefying and storing hydrogen is recognized as a technology suitable for large-scale storage and long-distance transportation of hydrogen.

Currently, most technologies for liquefied hydrogen (LH2) storage tanks that store liquefied hydrogen are for small tanks for land use.

The structure of the existing liquefied natural gas (LNG) storage tank allows storage at a low pressure at a temperature of -162 degrees Celsius or lower, but liquefied hydrogen requires pressurization at a lower temperature than liquefied natural gas, so the previously known liquefied hydrogen is used. A more stringent solution than natural gas storage technology is needed.

로 극저온의 액화천연가스(-162

보다 더 낮은 액화 온도를 가지는 저비점 특성을 가지므로 액화천연가스보다 기화가 더 쉽게 촉진되며, 체적당 증발률(BOR: Boil-Off Rate)은 액화천연가스의 10배에 달한다.Liquid hydrogen has a liquefaction temperature of -253

Cryogenic liquefied natural gas (-162

Because it has a low boiling point characteristic with a lower liquefaction temperature, evaporation is promoted more easily than liquefied natural gas, and the evaporation rate per volume (BOR: Boil-Off Rate) is 10 times that of liquefied natural gas.

At this time, the device for storing liquefied hydrogen is largely accommodated inside a spherical outer tank and the outer tank, and may include a support 80 that supports the spherical inner tank and the outer tank that stores liquefied hydrogen.

However, the conventional liquefied hydrogen storage device had a minimal function of suppressing the flow such as vertical movement, horizontal movement, and rotation of the internal tank when the liquid hydrogen was vaporized and the pressure of the liquid hydrogen was generated or an earthquake occurred. There is a problem in that structural stability is not secured, such as not having a function to return to the original position if it floats.

Therefore, there is an urgent need to develop a device that can return the inner tank to its original position when it flows while minimizing the flow of the inner tank due to evaporation of liquefied hydrogen or an earthquake.

Public Patent Publication No. 10-2020-0007445

The present invention was developed to solve the problems of the prior art described above. In addition to storing hydrogen, the present invention is mounted on a loading box provided in a transport equipment such as a vehicle or drone, so that hydrogen can be quickly supplied to objects that need hydrogen. Vehicles and drones that can protect the inner tank from radiant heat, minimize thermal conductivity, maintain the gap between the outer and inner tanks, and maintain a stable shape by suppressing vertical and horizontal movement of the inner tank. The purpose is to provide hydrogen tanks for use.

A hydrogen tank for vehicles and drones according to an embodiment of the present invention includes an external tank mounted on transportation equipment such as a vehicle or drone; An inner tank accommodated in the inner space of the outer tank, the outer surface of which is spaced apart from the inner surface of the outer tank, and a storage space formed therein; And a fixing part that connects the inner surface of the outer tank and the outer surface of the inner tank to secure the inner tank to the outer tank.

In addition, the fixing parts are applied in plural numbers and are fixed to the external tank and the internal tank at a certain distance from each other, forming an inclined structure, so that certain areas intersect each other.

In addition, a plurality of first and second supports are installed on the inner surface of the outer tank and the outer surface of the inner tank to be spaced apart from each other, and one side and the other side of the fixing part are respectively coupled to each other.

In addition, at least two of the fixing parts are coupled to a first support member and a second support member as a pair, and one side of the two fixing parts is fixed in contact with the first support member, and the other side is fixed to the first support member. They are fixed to two supports so as to be spaced apart from each other, and one side of the other two fixing parts is fixed to be in contact with the second support member, and the other side is fixed to be spaced apart from the first support member.

In addition, an insulator installed on the outer surface of the inner tank in a section where the second support member is not installed; and at least one of a thermal insulation part filled in the space between the external tank and the insulation material and formed of perlite material, and sucking air from the space between the external tank and the insulation material while sucking the insulation part. By filling the space between the external tank and the insulation material into a vacuum state.

And, a plurality of supports supported by the external tank and arranged at regular intervals from each other; and a reinforcing part that protects the support from the load of the external tank and the internal tank transmitted to the lower part of the support, wherein the reinforcing part includes a receiving box having an accommodating space for accommodating the lower side of the support, respectively; Each is accommodated in the receiving space of the receiving box, and is disposed on the front, rear, left, and right sides of the support to prevent the support from shaking in the front, rear, left, and right directions, and the upper and lower sides are aligned with the support and the receiving box. Each of the waveform supports is coupled to an inclined structure and is formed in a waveform shape to cushion and support the support; A first member is in contact with the left side of the support, a first fastening hole is formed, and both ends of the first member are bent in a right angle direction to contact 1/2 areas of the front and rear sides of the support, and a second fastening member is in contact with the left side of the support. a first wrapping portion including a second member in which a hole is formed; A third member is in contact with the right side of the support, is bent at a right angle at both ends of the third member and is in contact with the remaining 1/2 area of the front and back sides of the support, and a fourth fastener is in contact with the right side of the support. a second wrapping portion including a fourth member in which a hole is formed; A flow suppressor that penetrates from the outside of the box in the direction of the receiving space and is respectively fastened to the first fastening hole, the second fastening hole, the third fastening hole, and the fourth fastening hole, the end of which pressurizes and secures the support. ; A box-shaped metal weight part formed of a metal material, and a receiving space in which the box part is accommodated is formed therein; a measuring unit arranged to face the front, rear, left side, and right side of the support, respectively, to measure the distance from the support; a support plate disposed to face the front, rear, left, and right sides of the support, respectively; Tubes disposed on the front, rear, left, and right sides of the support, respectively, and to which the support plate is coupled to one side, respectively; Housings that accommodate each of the tubes and are fixed to an upper surface of the metal weight portion; And when the distance to the support measured by the measuring unit becomes shorter than a preset distance, it includes a pump that supplies water to the inside of the tube to expand the tube, thereby allowing the support plate to support the support.

The hydrogen tank for vehicles and drones according to the present invention stores hydrogen and is mounted in a loading box provided in transportation equipment such as vehicles or drones, so that hydrogen can be quickly supplied to objects that need hydrogen, and the internal tank is heated by radiant heat. It can minimize thermal conductivity and maintain the gap between the external tank and the internal tank, and has the effect of maintaining the shape of the internal tank stably, such as suppressing vertical and horizontal movement of the internal tank.

Figure 1 is a front cross-sectional view showing a hydrogen tank for a vehicle and a drone according to an embodiment of the present invention.
Figure 2 is a side cross-sectional view showing a hydrogen tank for a vehicle and a drone according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing an insulation part, a pocket part, and an elastic support part applied to a hydrogen tank for vehicles and drones according to an embodiment of the present invention.
Figure 4 is a front view showing a reinforcement portion 110 applied to a hydrogen tank for vehicles and drones according to an embodiment of the present invention.
Figure 5 is a plan view showing a reinforcement applied to a hydrogen tank for vehicles and drones according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Throughout the specification, similar parts are given the same reference numerals.

The hydrogen tank for vehicles and drones according to an embodiment of the present invention stores hydrogen and is mounted in a loading box provided in transportation equipment 90 such as vehicles or drones, so that hydrogen can be quickly supplied to objects requiring hydrogen. It can protect the inner tank (20) from radiant heat, minimize thermal conductivity, and at the same time maintain the gap between the outer tank (10) and the inner tank (20), and suppress vertical and horizontal movement of the inner tank (20). It is a product that can maintain its shape stably.

To this end, the hydrogen tank for vehicles and drones according to an embodiment of the present invention includes an external tank 10, an internal tank 20, a first support member 40, a second support member 50, It may include at least one of a fixing part 30, an insulating material 60, and a warming part 70.

The external tank 10 is exposed to the outside and is affected by the atmosphere, and in order to insulate the internal tank 20, the internal tank 20 is prevented from being exposed to the outside.

The external tank 10 functions to evenly support the internal pressure of the internal tank 20 by sharing the internal pressure applied to the internal tank 20.

The external tank 10 may be made of steel material to withstand stress, load, etc. transmitted from the internal tank 20.

That is, the external tank 10 may be made of a steel material, unlike the internal tank 20, which directly stores liquefied hydrogen.

This is because the effect of cryogenic temperatures on liquefied hydrogen is minimal.

This external tank 10 is supported by a support 80 at a certain distance from the bottom of the loading box.

The supports 80 are applied in plural pieces and support the external tank 10 while being spaced apart from each other in the loading box.

The upper portion of the support 80 that is in contact with the outer surface of the external tank 10 may be formed in a curved shape so as to be in close contact with the outer surface of the external tank 10.

The number of supports 80 applied varies depending on the size of the external tank 10.

The inner tank 20 is accommodated in the inner space of the outer tank 10, and its outer surface is spaced apart from the inner surface of the outer tank 10.

In addition, the internal tank 20 can store liquefied hydrogen by forming a storage space therein.

The inner tank 20 is in direct contact with liquefied hydrogen and is made of a material with excellent low-temperature characteristics that can withstand the extremely low temperature of liquefied hydrogen.

For example, the inner tank 20 may be made of aluminum or aluminum alloy material.

Due to the dual structure of the external tank 10 and the internal tank 20, the liquefied hydrogen stored inside the internal tank 20 can be maintained in a cryogenic state.

The outer tank 10 and the inner tank 20 described above may be formed in an oval or spherical shape so that the internal pressure of the liquefied hydrogen can be evenly distributed, and an example in which they are formed in an oval shape is shown in the drawing.

Meanwhile, the fixing part 30 is configured to connect the inner surface of the outer tank and the outer surface of the inner tank to secure the inner tank to the outer tank and generate a support force to the inner tank.

The fixing part 30 may be made of metal or steel to stably secure the support of the internal tank.

In addition, the hydrogen tank for vehicles and drones according to an embodiment of the present invention further includes a first support member 40 and a second support member 50 for connecting the fixing part 30 to the external tank and the internal tank. can do.

The first support members 40 are installed at regular intervals along the inner periphery of the external tank so that a plurality of fixtures can be applied.

One side of the fixture is installed in the first support member 40.

For example, a fixture may be installed on the first support member 40 through welding.

As another example, a through hole may be formed in the first support member 40 so that one side of the fixture can be installed through it.

The second supports 50 are installed at regular intervals along the outer periphery of the inner tank so that a plurality of fixtures can be applied.

For example, a fixture may be installed on the second support member 50 through welding.

As another example, a through hole may be formed in the second support member 50 so that one side of the fixture can be installed through it.

The fixing parts 30 are applied in multiple pieces, and one side and the other side are fixed to the first support member 40 and the second support member 50, respectively, while being spaced apart from each other in the space between the outer tank and the inner tank.

Furthermore, at least two fixing parts 30 may be coupled to each of the first support members 40 and the second support members 50 in a pair.

Additionally, one side of the two fixing parts 30 may be fixed to the first support 40 and the other side may be fixed to the second support 50 to be spaced apart from each other. In addition, one side of the other two fixing parts 30 may be fixed to the second support 50 and the other side may be fixed to the first support 40 to be spaced apart from each other.

At this time, the fixing part 30 has a diagonal inclined structure and forms a shape in which the areas of the central part intersect each other.

In this way, if the fixing parts 30 are arranged crosswise in a three-dimensional shape, it is possible to apply a plurality of fixing parts 30, thereby stably supporting the internal tank.

Furthermore, after forming a through hole in the first support member 40 and the second support member 50 and installing the fixing part 30 therethrough, the first support part 40 and the second support part 30 among the fixing parts 30 When nuts are fastened to both sides protruding from the supporter 50 and brought into close contact with the first supporter 40 and the second supporter 50, the fixture attaches to the first supporter 40 and the second supporter 50. ) can be prevented from leaving.

In particular, when the nut is fastened to the fixing part 30, tension and compression force are simultaneously generated in the fixing part 30, causing the internal tank to rise due to external force, an earthquake, or due to the internal pressure of the internal tank, or Even if the tank moves horizontally or rotates at a predetermined angle, it can be returned to its original position.

Furthermore, the first support member 40, the second support member 50, and the fixing part 30 are evenly distributed and connect the external tank and the internal tank. And, the first support member 40 is fixed to the external tank, the second support member 50 is fixed to the inner spherical tank, and the fixing part 30 is connected to the first support member 40 and the second support member ( By being fixed to 50), horizontal and vertical support forces can be secured, and a reaction force against rotation can be generated while suppressing vertical movement and horizontal movement of the internal tank.

As a result, the structural stability of the liquefied hydrogen tank can be secured.

In addition, it is possible to make the length of the fixing part 30, which is the connection point between the external tank and the internal tank, as long as possible, thereby increasing the resistance to heat conduction of the internal tank.

In addition, in a conventional hydrogen tank, the horizontal and vertical supports were installed separately, but in this case, both the horizontal and vertical supports connected the external tank and the internal tank, resulting in heat loss in the internal tank. However, the hydrogen tank for vehicles and drones according to an embodiment of the present invention applies only the fixing part 30 compared to the conventional hydrogen tank, so the connection point between the external tank and the internal tank by the fixing part 30 can be reduced. You can. This can improve temperature shielding.

That is, the hydrogen tank for vehicles and drones according to an embodiment of the present invention can support the internal tank and improve temperature shielding ability compared to the prior art. In addition, there is a cost-effective advantage in that only the fixing bar is used as the support structure for the internal tank.

Meanwhile, the liquefied hydrogen tank support device according to an embodiment of the present invention may further include at least one of an insulating material 60 for thermal insulation and a thermal insulation unit 70 for thermal insulation.

Although the drawing shows an example in which the insulation material 60 and the warming unit 70 are applied simultaneously, only the insulation material 60 or only the insulation unit 70 may be applied.

The insulation material 60 may be installed in an uninstalled section on the outer surface of the internal tank where the second insulation part is not installed.

The insulation material 60 may be formed of a sheet of urethane material or glass wool material.

의 온도를 유지할 수 있도록 한다.The insulation material 60 prevents the inner tank from leaking out and prevents solar heat and radiant heat acting on the outer tank from being conducted to the inner tank. As a result, liquefied hydrogen is -253

to maintain the temperature.

At this time, if the insulation material 60 is thin, it can be applied in a form of stacking at least two or more layers.

The thermal insulation unit 70 is formed of perlite in powder form and can be filled in the space between the external tank and the insulation material 60.

At this time, the thermal insulation unit 70 can be filled while creating a vacuum in the space between the external tank and the insulation material 60.

For this purpose, an intake port and a filling port are formed in the external tank, and a known air suction device capable of sucking air is connected to the intake port to suck the air existing in the space between the external tank and the insulation material 60, and At the same time, the space between the external tank and the insulation material 60 can be vacuum-insulated by filling the filling port with pearlite in powder form through a known air supply device that generates compressed air, such as an air compressor.

At this time, the intake port and filling port may be closed with a stopper (not shown) when the vacuum and pearlite filling operations are completed.

By creating a vacuum in the space between the external tank and the insulation material 60, convection can be prevented from occurring, thereby preventing the temperature of the internal tank and liquefied hydrogen from increasing.

Furthermore, the thermal insulation unit 70 protects the internal tank from radiant heat by insulating the space between the external tank and the insulation material 60 and minimizes thermal conductivity, thereby preventing the temperature of the internal tank from increasing, thereby preventing liquefaction. It can prevent hydrogen from vaporizing.

Next, the reinforcement portion 110 applied to the hydrogen tank for vehicles and drones according to an embodiment of the present invention will be described with reference to FIGS.

The load of the external tank and internal tank is transmitted to the lower part of the support (80).

Therefore, in order to ensure the structural stability of the support 80 and the external and internal tanks, the support 80 must be reinforced.

The reinforcing part 110 includes a receiving box 111, a corrugated support part 112, a first wrapping part 113, a second wrapping part 114, and a flow suppressing part ( 115), a metal weight part 116, a measuring part 117, a support plate 118, a tube 119, a housing 120, and a pump 121. .

The receiving box 111 may be fixed to the bottom of the loading box through bolts.

The receiving box 111 is formed in the shape of a rectangular box with an open upper surface and a receiving space formed inside, so that the lower side of the support 80 can be accommodated in the receiving space.

The waveform supports 112 are each accommodated in the receiving space of the receiving box 111, and are located on the front, rear, left, and right sides of the support 80 to prevent the support 80 from shaking in the front, rear, left, and right directions. As each is arranged, the upper and lower sides are coupled to the support 80 and the receiving box 111 in an inclined structure, respectively.

The waveform support portion 112 is formed in a waveform shape to cushion and support the support 80, and may be made of a metal material.

These waveform supports 112 elastically support the front, rear, left, and right sides of the support 80, respectively, so that the support 80 can support the load of the external tank 10 and the internal tank 20, earthquakes, and various other Prevents bending due to external force.

The first wrapping portion 113 is in contact with the left side of the support 80, and is bent in a right angle direction at both ends of the first member 1131 and the first member 1131 on which the first fastening hole 1131a is formed. It may include a second member 1132 that is in contact with 1/2 areas of the front and rear surfaces of the support 80 and has a second fastening hole 1132a formed thereon.

The second wrapping portion 114 is in contact with the right side of the support 80, and is bent in a right angle direction at both ends of the third member 1141 and the third member 1141 on which the third fastening hole 1141a is formed, respectively, to provide support. It may include a fourth member 1142 that is in contact with the remaining 1/2 area of the front and rear surfaces of (80) and has a fourth fastening hole 1142a formed thereon.

The flow suppression unit 115 penetrates from the outside of the box in the direction of the receiving space and includes the first fastening hole 1131a, the second fastening hole 1132a, the third fastening hole 1141a, and the fourth fastening hole 1142a. ) are each fastened to each other, and the ends pressurize and secure the support 80, thereby suppressing the flow of the support 80 and ensuring the structural stability of the external tank 10, the internal tank 20, and the support 80. .

In this way, after fixing the support 80 with the flow restraining part 115, the receiving box 111 is accommodated in the inner space of the metal weight part 116.

The metal weight portion 116 may be formed in the shape of a rectangular box with an open upper surface and a receiving space formed inside.

The receiving box 111 is accommodated in the receiving space of the metal weight portion 116.

The metal weight portion 116 may be made of a metal material to prevent the support 80 from flowing on its own when it tries to move in the horizontal direction, and may have a weight of approximately 50 kg to 200 kg.

Since the metal weight portion 116 does not flow on its own, it can also suppress the flow of the support 80.

The measuring unit 117 is arranged to face the front, rear, left, and right sides of the support 80, respectively, and measures the distance to the support 80.

The measuring unit 117 may be applied as a distance measuring device using a laser or any of various measuring devices that measure the distance to an object encountered.

The support plate 118 is arranged to face the front, rear, left, and right sides of the support 80, respectively.

The tube 119 is disposed on the front, rear, left, and right sides of the support 80, and a support plate 118 is coupled to one side.

The inner space of the tube 119 is filled with approximately 80% to 90% of water.

The tube 119 may gradually expand as it is filled with water.

This tube 119 may be formed into a substantially circular, oval, or polygonal shape.

Tubes 119 are each accommodated inside the housing 120.

The housing 120 is fixed to the upper surface of the metal weight portion 116 to prevent the tube 119 from flowing.

The pump 121 is connected to a separate water storage tank (not shown) and can supply water to the inside of the tube 119.

The measuring unit 117 measures the distance to the support 80 in real time, and when the measured distance to the support 80 becomes shorter than the preset distance, the measurement unit 117 transmits the data to an electrically connected control unit (not shown).

When a signal is transmitted from the measuring unit 117, the control unit operates the pump 121 to supply about 20% to 10% of water to the inside of the tube 119, thereby expanding the tube 119.

At this time, when the control unit receives a signal from the measurement unit 117, it can be programmed to transmit the abnormality of the support 80 to the manager's portable terminal and the manager PC.

When the tube 119 is expanded, the support plate 118 comes into close contact with the support 80 to support it.

The support plate 118 supports the support 80, and the tube 119 supports the support plate 118 at a constant weight, so even if a shock or earthquake is applied to the support 80, the support 80 It can prevent it from flowing.

The amount of water filled in the tube 119 may vary depending on the size or weight of the external tank 10, internal tank 20, and support 80.

Meanwhile, although not shown in the drawing, a warming unit (not shown) formed of a heating line or heating coil that operates by receiving power may be installed inside the housing 120.

In addition, a temperature measuring device (not shown) to measure temperature may be installed on the outer or inner surface of the housing 120.

The temperature measuring device is a known product capable of measuring temperature and is configured to prevent the water filled inside the tube 119 from freezing when the temperature is low, such as in winter.

For this purpose, the temperature measuring device is electrically connected to the control unit described above.

The temperature gauge measures the temperature in real time and transmits it to the control unit.

The control unit receives the temperature in real time from the temperature measuring device, and if the temperature transmitted from the temperature measuring device is a preset temperature, for example, 0°C, which is the freezing temperature of ice, it applies power to the warming unit to control the temperature of the tube 119. It is programmed to prevent the water filled inside from freezing.

Additionally, the control unit can be programmed to cut off the power applied to the warming unit when the temperature transmitted from the temperature measuring device is 1°C or higher.

A person skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

10: external tank 20: internal tank
30: fixing part 40: first support district
50: second support district 60: insulation material
70: warming part 80: support
90: Transfer equipment 110: Reinforcement part
111: receiving box 112: corrugated support
113: first wrapping unit 1131: first member
1131a: first fastening hole 1132: second member
1132a: 2nd fastening hole 114: 2nd wrapping part
1141: Third member 1141a: Third fastening hole
1142: Fourth member 1142a: Fourth fastening hole
115: flow suppression part 116: metal weight part
117: measuring part 118: support plate
119: tube 120: housing
121: pump

Claims (5)

External tanks mounted on transport equipment such as vehicles or drones;
An inner tank accommodated in the inner space of the outer tank, the outer surface of which is spaced apart from the inner surface of the outer tank, and a storage space formed therein; and
A hydrogen tank for vehicles and drones including a fixing part that connects the inner surface of the outer tank and the outer surface of the inner tank and fixes the inner tank to the outer tank.
According to paragraph 1,
A hydrogen tank for vehicles and drones where the fixing parts are applied in multiple numbers and are fixed to the external tank and the internal tank at a certain distance from each other, forming an inclined structure and having certain areas intersecting each other.
According to paragraph 1,
A hydrogen tank for vehicles and drones, further comprising first and second supports installed on the inner surface of the outer tank and the outer surface of the inner tank to be spaced apart from each other, and to which one side and the other side of the fixing part are coupled, respectively. According to paragraph 3,
At least two of the fixing units are coupled to a first support member and a second support member as a pair,
One side of the two fixing parts is fixed to be in contact with the first support member, and the other side is fixed to the second support member to be spaced apart from each other,
A hydrogen tank for vehicles and drones in which one side of the other two fixing parts is fixed to be in contact with the second support member, and the other side is fixed to the first support member to be spaced apart from each other.
According to paragraph 4,
An insulating material installed on the outer surface of the inner tank in a section where the second support member is not installed; and
It is filled in the space between the external tank and the insulation material, and further includes at least one of a heat insulating part made of perlite material,
A hydrogen tank for vehicles and drones that fills the insulation part while sucking air from the space between the external tank and the insulation material to create a vacuum in the space between the external tank and the insulation material.

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