A new LNG vaporizer based on hydrogen storage metal

Abstract

The application discloses a novel LNG gasification device based on hydrogen storage metal, which comprises the LNG gasification device for realizing energy conversion of hydrogen storage metal absorbing and releasing solar energy and supplying heat to the built-in LNG pipeline. The hydrogen storage metal absorbs and releases hydrogen to heat the water body in the water layer in the buffer water layer, and the water body in the heated buffer water layer is wrapped outside the built-in LNG pipeline. The heated water body in the buffer water layer heats the built-in LNG pipeline, so that the LNG in the built-in LNG pipeline is gasified. The hydrogen storage metal is combined with solar energy to realize the use of solar energy in different seasons. The water layer outside the buffer water layer and the water layer in the buffer water layer avoid the disadvantage of too fast hydrogen absorption and release of the hydrogen storage metal to meet the stable heat supply to the built-in LNG pipeline. The water body circulates in the water layer outside the buffer water layer and the water layer in the buffer water layer and is not discharged to the outside world, thereby reducing the waste of energy consumption and solving the problem of large energy consumption waste of water bath gasification LNG.

Description

Technical Field

[0001] This invention relates to a novel LNG gasification device based on hydrogen storage metal, belonging to the field of LNG gasification technology. Background Technology

[0002] Because LNG (liquefied natural gas) has a large amount of cold energy, it is in a gasified state when it is transported and used through pipelines. Therefore, LNG needs to be heated and gasified in the gasification station.

[0003] The gasification stations all employ a two-stage gasification method combining air temperature and water bath. In winter, when the outside air temperature is low, only the water bath stage performs gasification. Existing water bath gasification technology, as described in Chinese Patent Publication No. CN209876501U, introduces a heat source gas injection and distribution device to heat the heat exchange liquid medium, with the heat source gas then discharged from the exhaust pipe. Although the heat source gas can heat and vaporize the LNG in the LNG pipe through the heat exchange liquid medium, some heat is carried away during the exhaust, resulting in significant energy waste in water bath LNG gasification. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a novel LNG gasification device based on hydrogen storage metal.

[0005] The present invention is achieved through the following technical solutions.

[0006] This invention provides a novel LNG vaporization device based on hydrogen storage metal, comprising:

[0007] An LNG vaporization device that converts hydrogen storage metals into energy by absorbing and releasing solar energy, and supplies heat to the built-in LNG pipeline.

[0008] Includes: a buffer water layer with an inner water layer, an internal LNG pipeline inside the buffer water layer, and the buffer water layer surrounding the internal LNG pipeline.

[0009] An insulation layer is placed inside the buffer water layer, and an outer water layer is placed outside the inner insulation layer of the buffer water layer.

[0010] A lower water pump and an upper water pump are installed in the insulation layer of the buffer water layer between the outer water layer and the inner water layer. The lower and upper sides of the outer water layer and the inner water layer are connected by the lower and upper water pumps respectively.

[0011] It also includes a heat-conducting layer located outside the buffer water layer, a hydrogen storage reaction layer outside the heat-conducting layer, a hydrogen storage metal installed in the hydrogen storage reaction layer, and a hydrogen medium in the hydrogen storage metal.

[0012] The water layer within the buffer water layer is confined to the space formed by the inner wall of the insulation layer and the outer wall of the built-in LNG pipeline.

[0013] The outer water layer of the buffer water layer is confined within the space formed by the inner wall of the heat-conducting layer and the outer wall of the inner insulation layer of the buffer water layer.

[0014] A heating device is present in the hydrogen storage reaction layer outside the hydrogen storage metal.

[0015] The heating device is an electric heating device, and the power supply terminal of the electric heating device is electrically connected to a battery, which is connected to a solar power generation component.

[0016] The hydrogen storage reaction layer is externally installed with an external heat insulation layer made of insulating material, and supports are installed at both ends of the external heat insulation layer for support.

[0017] A temperature-sensitive sensor for monitoring water temperature and pressure is installed in the water layer of the buffer water layer; a pressure-sensitive sensor for monitoring hydrogen pressure is installed in the hydrogen storage metal.

[0018] The beneficial effects of this invention are as follows: the hydrogen storage metal absorbs hydrogen and releases heat, and the heat is used to heat the water in the outer water layer and inner water layer of the buffer water layer through the heat-conducting layer. The lower and upper water pumps circulate the heated water in the outer water layer into the inner water layer, raising the temperature of the water in the inner water layer. Since the inner water layer is wrapped around the built-in LNG pipeline, the heated water in the inner water layer heats the built-in LNG pipeline, causing the LNG in the built-in LNG pipeline to vaporize. By combining the hydrogen storage metal with solar energy, solar energy can be used seasonally. The outer and inner water layers of the buffer water layer avoid the disadvantage of the hydrogen storage metal absorbing hydrogen and releasing heat too quickly, ensuring a stable supply of heat to the built-in LNG pipeline. The water circulates in the outer and inner water layers of the buffer water layer without being discharged to the outside, reducing energy waste and solving the problem of large energy waste in water bath vaporization of LNG. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0020] Figure 2 This is a schematic diagram of the side cross-section of the present invention;

[0021] In the diagram: 1-Built-in LNG pipeline; 2-Water layer inside the buffer water layer; 3-Heat-conducting layer; 4-Insulation layer inside the buffer water layer; 5-Hydrogen storage reaction layer; 6-External insulation layer of the device; 7-Water layer outside the buffer water layer; 8-Lower water pump; 9-Upper water pump; 10-Hydrogen storage metal; 11-Temperature sensor; 12-Pressure sensor; 13-Heating device. Detailed Implementation

[0022] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0023] like Figures 1 to 2 As shown.

[0024] This application discloses a novel LNG vaporization device based on hydrogen storage metal, comprising:

[0025] Built-in LNG pipeline 1 for use with LNG.

[0026] It also includes an inner water layer 2, which is filled with water and surrounds the outer perimeter of the built-in LNG pipeline 1. The inner water layer 2 is confined within the space formed by the inner wall of the inner insulation layer 4 and the outer wall of the built-in LNG pipeline 1.

[0027] It also includes an inner insulation layer 4 made of heat-insulating material for the buffer water layer, and an outer water layer 7 outside the inner insulation layer 4, which is filled with water. The outer water layer 7 is confined within the space formed by the inner wall of the heat-conducting layer 3 and the outer wall of the inner insulation layer 4. A lower water pump 8 and an upper water pump 9 are installed in the inner insulation layer 4 between the outer water layer 7 and the inner water layer 2. The outer water layer 7 and the inner water layer 2 are connected to each other via the lower and upper water pumps 8 and 9, respectively.

[0028] It also includes a heat-conducting layer 3 located outside the buffer water layer 7, a hydrogen storage reaction layer 5 outside the heat-conducting layer 3, a hydrogen storage metal 10 installed in the hydrogen storage reaction layer 5, a hydrogen medium in the hydrogen storage metal 10, and a heating device 13 outside the hydrogen storage metal 10 in the hydrogen storage reaction layer 5. The heating device 13 is an electric heating device, and the power supply terminal of the electric heating device is electrically connected to a battery. The battery is connected to a solar power generation module, which absorbs solar energy to generate electrical energy, which is stored in the battery. The battery supplies power to the heating device 13 to achieve heating.

[0029] The hydrogen storage reaction layer 5 is externally installed with an external heat insulation layer 6 made of insulating material, and supports 14 are installed at both ends of the external heat insulation layer 6 for support.

[0030] A temperature-sensitive sensor 11 is installed in the inner water layer 2 of the buffer water layer to monitor water temperature and pressure. When the temperature-sensitive sensor 11 detects that the water temperature in the inner water layer 2 of the buffer water layer is too low, the input of liquid LNG into the built-in LNG pipeline 1 is stopped.

[0031] The hydrogen storage metal 10 is equipped with a pressure-sensitive sensor 12 for monitoring hydrogen pressure.

[0032] When the temperature is low in winter, the hydrogen storage metal 10 absorbs hydrogen and releases heat with hydrogen gas. The heat is transferred through the heat-conducting layer 3 to heat the water in the outer water layer 7 of the buffer water layer. The lower water pump 8 and the upper water pump 9 circulate the heated water in the outer water layer 7 into the inner water layer 2 of the buffer water layer. The heat released by the hydrogen storage metal 10 is stored in the outer water layer 7 and the inner water layer 2 of the buffer water layer to stably heat the built-in LNG pipeline 1, preventing the heat released by the hydrogen storage metal 10 from being transferred to the built-in LNG pipeline 1 too quickly and causing the water temperature in the inner water layer 2 of the buffer water layer to rise. Since the inner water layer 2 of the buffer water layer is wrapped around the built-in LNG pipeline 1, the heated water in the inner water layer 2 heats the built-in LNG pipeline 1, causing the LNG in the built-in LNG pipeline 1 to vaporize. Since the water circulates in the outer water layer 7 and the inner water layer 2 of the buffer water layer and is not discharged to the outside, the waste of energy consumption is reduced, and the problem of large energy waste in water bath vaporization of LNG is solved.

[0033] When the hydrogen storage metal 10 finishes absorbing hydrogen and releasing heat with hydrogen, the battery provides electrical energy to the heating device 13. The heat from the heating device 13 heats the water in the water layer 7 outside the buffer water layer through the heat-conducting layer 3. At the same time, the heat from the heating device 13 causes the hydrogen storage metal 10 to release hydrogen and absorb heat, thus storing energy for the next hydrogen storage metal 10 to absorb hydrogen and release heat with hydrogen.

[0034] This application utilizes hydrogen storage metal 10 in conjunction with solar power generation components to achieve seasonal use of solar energy. Furthermore, it designs an outer water layer 7 and an inner water layer 2 to avoid the drawback of excessively rapid hydrogen absorption and heat release by the hydrogen storage metal 10. This ensures a stable supply of heat to the built-in LNG pipeline 1 for heating and vaporizing LNG. The hydrogen storage metal 10 absorbs hydrogen and releases heat, and the hydrogen absorption and release heat characteristics of the hydrogen storage metal 10 repeatedly cycle through hydrogen absorption and release. The solar power generation components provide energy to maintain the dynamic state of hydrogen absorption and release heat, and then release heat through the hydrogen absorption and release heat reaction.

Claims

1. A novel LNG gasification device based on hydrogen storage metal, characterized in that, include: An LNG vaporization device that enables the hydrogen storage metal (10) to absorb and release solar energy for energy conversion and supply heat to the built-in LNG pipeline (1); Includes: a buffer water layer (2), with an internal LNG pipeline (1) inside the buffer water layer (2), and the buffer water layer (2) is wrapped around the external periphery of the internal LNG pipeline (1); The inner insulation layer (4) of the buffer water layer, and the outer water layer (7) of the buffer water layer (4) is located outside the inner insulation layer (4). A lower water pump (8) and an upper water pump (9) are installed in the inner insulation layer (4) between the outer water layer (7) and the inner water layer (2) of the buffer water layer. The lower and upper sides of the outer water layer (7) and the inner water layer (2) of the buffer water layer are connected by the lower water pump (8) and the upper water pump (9). It also includes a heat-conducting layer (3) located outside the buffer water layer (7), a hydrogen storage reaction layer (5) outside the heat-conducting layer (3), a hydrogen storage metal (10) installed in the hydrogen storage reaction layer (5), and a hydrogen storage medium in the hydrogen storage metal (10). A heating device (13) is located in the hydrogen storage reaction layer (5) outside the hydrogen storage metal (10); The hydrogen storage metal (10) absorbs hydrogen and releases heat, which is stored in the outer water layer (7) and the inner water layer (2) of the buffer water layer to stably heat the built-in LNG pipeline (1), avoiding the heat from the hydrogen storage metal (10) absorbing hydrogen and releasing heat too quickly to be directed to the built-in LNG pipeline (1), causing the water temperature in the inner water layer (2) of the buffer water layer to rise. Since the inner water layer (2) of the buffer water layer is wrapped around the outside of the built-in LNG pipeline (1), the heated water in the inner water layer (2) heats the built-in LNG pipeline (1), causing the LNG in the built-in LNG pipeline (1) to vaporize. Since the water circulates in the outer water layer (7) and the inner water layer (2) of the buffer water layer and is not discharged to the outside, the waste of energy consumption is reduced. When the hydrogen absorption and heat release ends, the battery provides electrical energy to the heating device (13). The heat from the heating device (13) heats the water in the water layer (7) outside the buffer water layer through the heat-conducting layer (3). At the same time, the heat from the heating device (13) causes the hydrogen storage metal (10) to release hydrogen and absorb heat, thus storing energy for the next hydrogen storage metal (10) to absorb hydrogen and release heat with hydrogen.

2. The novel LNG gasification device based on hydrogen storage metal as described in claim 1, characterized in that: The inner water layer (2) of the buffer water layer is confined within the space formed by the inner wall of the inner insulation layer (4) and the outer wall of the built-in LNG pipeline (1).

3. The novel LNG gasification device based on hydrogen storage metal as described in claim 1, characterized in that: The outer water layer (7) of the buffer water layer is confined within the space formed by the inner wall of the heat-conducting layer (3) and the outer wall of the inner insulation layer (4) of the buffer water layer.

4. The novel LNG gasification device based on hydrogen storage metal as described in claim 3, characterized in that: The heating device (13) is an electric heating device, and the power supply terminal of the electric heating device is electrically connected to a battery, which is connected to a solar power generation component.

5. The novel LNG gasification device based on hydrogen storage metal as described in claim 1, characterized in that: The hydrogen storage reaction layer (5) is externally fitted with an external heat insulation layer (6) made of insulating material, and supports (14) are installed at both ends of the external heat insulation layer (6) for support.

6. The novel LNG gasification device based on hydrogen storage metal as described in claim 1, characterized in that: A temperature sensor (11) for monitoring water temperature and pressure is installed in the water layer (2) of the buffer water layer; a pressure sensor (12) for monitoring hydrogen pressure is installed in the hydrogen storage metal (10).

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