Thermal cycle device for hydrogen storage tank

Abstract

According to the technical scheme, the thermal circulation device for the hydrogen storage tank comprises the storage tank, a cooling water tank and a heating tank, a heat preservation chamber is arranged in the storage tank close to the top, an equipment chamber is arranged in the storage tank close to the bottom, and the cooling water tank is installed on one side of the bottom in the equipment chamber. A semiconductor refrigerator is installed on one side of the cooling water tank, a water inlet pipe is installed on one side of the cooling water tank, a backflow pipe is installed on the side, away from the water inlet pipe, of the cooling water tank, the tail end of the backflow pipe is arranged on the top in the heat preservation chamber, and the tail end of the water inlet pipe is connected to the bottom in the heat preservation chamber. And a heater is mounted at the top of the heating box. The thermal cycle device for the hydrogen storage tank solves the problems that an existing hydrogen storage tank is simple in structure, poor in temperature control and heat preservation effect and prone to being affected by the environment temperature, and consequently the hydrogen storage safety is reduced, the temperature control and heat preservation effect of the storage tank is improved, and therefore the hydrogen storage safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, in particular to a thermal circulation device for a hydrogen storage tank. Background Art

[0002] High-pressure gaseous hydrogen storage refers to the storage of gaseous hydrogen by high-pressure compression above the critical temperature of hydrogen. The storage method is to compress hydrogen into a high-pressure resistant container under high pressure. The density of liquid hydrogen is about 70.8 kilograms per cubic meter, which is very small. It is usually used as a fuel for rocket launches and is now also used as a fuel for other means of transportation. The hydrogen storage technology using organic liquid hydrides as hydrogen carriers was developed in the 1980s. Under lower pressures and relatively high temperatures, certain organic liquids can be used as hydrogen carriers to achieve the purpose of storing and transporting hydrogen. When storing hydrogen, storage tanks are required.

[0003] The existing hydrogen storage tank has a simple structure and poor temperature control and insulation effect. It is easily affected by the ambient temperature, resulting in reduced safety of hydrogen storage. Therefore, we propose a thermal cycle device for hydrogen storage tanks. Utility Model Content

[0004] The utility model aims to provide a thermal cycle device for a hydrogen storage tank, so as to achieve the effect of accurately controlling the hydrogen storage temperature, so as to solve the problem that the existing hydrogen storage tank has a simple structure, poor temperature control and insulation effect, and is easily affected by the ambient temperature, resulting in reduced safety of hydrogen storage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal circulation device for a hydrogen storage tank, comprising a storage tank, a cooling water tank and a heating box, wherein a heat preservation chamber is provided near the top of the storage tank, an equipment room is provided near the bottom of the storage tank, a cooling water tank is installed on one side of the bottom of the equipment room, a semiconductor refrigerator is installed on one side of the cooling water tank, a water inlet pipe is installed on one side of the cooling water tank, a return pipe is installed on the side of the cooling water tank away from the water inlet pipe, the end of the return pipe is arranged at the top of the heat preservation chamber, the end of the water inlet pipe is connected to the bottom of the heat preservation chamber, a heating box is installed in the middle of the water inlet pipe, and a heater is installed on the top of the heating box.

[0006] Preferably, a circulation pump is installed on the side of the water inlet pipe close to the heating box, and a one-way valve is installed near the end of the water inlet pipe.

[0007] Preferably, the cold end of the semiconductor refrigerator is arranged inside the cooling water tank, and the hot end of the semiconductor refrigerator is equipped with a radiator.

[0008] Preferably, a battery is installed in the middle of the top of the equipment room, a controller is installed on one side of the top of the equipment room close to the battery, and temperature sensors are installed inside the insulation room and the storage tank.

[0009] Preferably, a moving groove is provided in the middle of the bottom of the storage tank. A lifting plate is installed in the middle of the interior of the moving groove. Moving wheels are installed at the bottom of the lifting plate. A rotating shaft is installed at the top inner part of the moving groove. The rotating shaft is sleeved inside the lifting plate, and the rotating shaft and the lifting plate are in threaded engagement with each other.

[0010] Preferably, limiting rods are installed on both sides of the top inner part of the moving groove, and the limiting rods penetrate through the interior of the lifting plate.

[0011] Preferably, partition plates are provided at both the top inner part and the bottom inner part of the heating box, and the partition plates are arranged in a staggered manner.

[0012] Preferably, a worm gear is installed in the middle of the outer surface of the rotating shaft. An adjusting shaft is installed on one side of the storage tank. A worm is installed at one end of the adjusting shaft on the outer surface of the worm gear, and the worm is meshed with the worm gear.

[0013] Preferably, a heat preservation sleeve is installed on the outer surface of the storage tank, and a sealing cover is installed on the top of the storage tank.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing a cooling water tank, a semiconductor refrigerator, a heater and a heating box, the present utility model achieves the effect of precisely controlling the storage temperature of hydrogen, so as to solve the problems that the structure of the existing hydrogen storage tank is simple, its temperature control and heat preservation effects are poor, and it is easily affected by the ambient temperature, resulting in a reduction in the storage safety of hydrogen. The heat preservation and temperature control effects of the storage tank are improved, thereby improving the storage safety of hydrogen.

[0016] 2. By providing an adjusting shaft, a rotating shaft, a lifting plate and moving wheels, the present utility model achieves the effect of facilitating the movement of the storage tank, so as to solve the problems that the short-distance movement of the storage tank requires manual handling, the handling safety is poor, and it affects the normal storage of hydrogen. The movement convenience of the hydrogen storage tank is improved, thereby ensuring the normal storage of hydrogen.

[0017] 3. By providing a heat preservation sleeve on the outer surface of the storage tank, the present utility model achieves the effect of heat preservation for the storage tank, so as to solve the problems that the heat insulation effect of the existing storage tank is poor, it is easily affected by the external environment, and the energy consumption of the storage tank is increased. The energy consumption of the storage tank is reduced, thereby improving the economic efficiency of the use of the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the present utility model;

[0019] Figure 2 is the sectional view structural schematic diagram of the present utility model;

[0020] Figure 3 It is a partial sectional view structure diagram of the equipment room and the lifting plate of the present utility model;

[0021] Figure 4 It is a partial front view structure diagram of the cooling water tank of the present utility model;

[0022] Figure 5 It is a partial front view structure diagram of the heating box of the present utility model;

[0023] Figure 6 It is a partial front view structure diagram of the moving groove of the present utility model;

[0024] Figure 7 It is a bottom view structure diagram of the present utility model.

[0025] Reference numerals: 1, storage tank; 2, sealing cover; 3, heat preservation sleeve; 4, adjusting shaft; 5, return pipe; 6, moving groove; 7, equipment room; 8, heat preservation room; 9, temperature sensor; 10, battery; 11, controller; 12, one-way valve; 13, water inlet pipe; 14, heating box; 15, circulation pump; 16, lifting plate; 17, cooling water tank; 18, semiconductor refrigerator; 19, heater; 20, partition board; 21, worm; 22, worm wheel; 23, rotating shaft; 24, limiting rod; 25, moving wheel. Specific embodiments

[0026] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Embodiment 1

[0028] As Figures 1 - 5As shown, in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal circulation device for a hydrogen storage tank, comprising a storage tank 1, a cooling water tank 17 and a heating box 14, a heat preservation chamber 8 is provided near the top of the storage tank 1, an equipment room 7 is provided near the bottom of the storage tank 1, a cooling water tank 17 is installed on one side of the bottom of the equipment room 7, a semiconductor refrigerator 18 is installed on one side of the cooling water tank 17, a water inlet pipe 13 is installed on one side of the cooling water tank 17, a return pipe 5 is installed on the side of the cooling water tank 17 away from the water inlet pipe 13, the end of the return pipe 5 is arranged at the top of the heat preservation chamber 8, the end of the water inlet pipe 13 is connected to the bottom of the heat preservation chamber 8, a heating box 14 is installed in the middle of the water inlet pipe 13, a heater 19 is installed on the top of the heating box 14, and the water inlet pipe 1 A circulation pump 15 is installed near the heating box 14, a one-way valve 12 is installed near the end of the water inlet pipe 13, the cold end of the semiconductor refrigerator 18 is arranged inside the cooling water tank 17, and a radiator is installed at the hot end of the semiconductor refrigerator 18. A battery 10 is installed in the middle of the top of the equipment room 7, and a controller 11 is installed on the side of the top of the equipment room 7 near the battery 10. Temperature sensors 9 are installed inside the insulation room 8 and the storage tank 1 to facilitate sensing the internal temperature of the storage tank 1 and the insulation room 8. Partitions 20 are provided at the top and bottom of the heating box 14, and the partitions 20 are staggered. A heat preservation cover 3 is installed on the outer surface of the storage tank 1. The storage tank 1 is heat-insulated by the heat preservation cover 3, and a sealing cover 2 is installed on the top of the storage tank 1.

[0029] The working principle of the thermal circulation device for hydrogen storage tanks based on Example 1 is: after the utility model is installed, when it is used, hydrogen is stored inside the utility model, when the temperature sensor 9 senses that the temperature inside the storage tank 1 is high, the semiconductor refrigerator 18 is started, and the cooling water is cooled by the semiconductor refrigerator 18, and the cooled cooling water is refluxed and transported to the interior of the insulation chamber 8 through the circulation pump 15, and the interior of the storage tank 1 is cooled by the cooling water, thereby cooling the hydrogen, and when the temperature sensor 9 senses that the temperature inside the storage tank 1 is low, the heater 19 and the circulation pump 15 are started, and the water is transported to the interior of the insulation chamber 8 by the circulation pump 15, and the water is heated by the heater 19 at the same time. After heating, it is transported to the interior of the insulation chamber 8 through the water inlet pipe 13 for insulation. At this point, the working process of this equipment is completed.

[0030] Embodiment 2

[0031] like Figure 3 , Figure 6 and Figure 7As shown in the figure, the thermal circulation device for a hydrogen storage tank proposed by the present utility model, compared with the first embodiment, this embodiment further includes: a moving groove 6 is provided in the middle of the bottom of the storage tank 1, a lifting plate 16 is installed in the middle of the inside of the moving groove 6, a moving wheel 25 is installed at the bottom of the lifting plate 16, a rotating shaft 23 is installed at the top inside of the moving groove 6, the rotating shaft 23 is sleeved inside the lifting plate 16, and the rotating shaft 23 is threadedly engaged with the lifting plate 16. Limiting rods 24 are installed on both sides of the top inside of the moving groove 6, and the limiting rods 24 penetrate through the inside of the lifting plate 16. By providing the limiting rods 24, it is convenient for the lifting plate 16 to move up and down. A worm gear 22 is installed in the middle of the outer surface of the rotating shaft 23, an adjusting shaft 4 is installed on one side of the storage tank 1, a worm 21 is installed at one end of the adjusting shaft 4 on the outer surface of the worm gear 22, and the worm 21 is meshed with the worm gear 22. By driving the rotating shaft 23 to rotate through the adjusting shaft 4, the lifting plate 16 is driven to move.

[0032] In this embodiment, when it is necessary to move the present utility model over a short distance, rotate the adjusting shaft 4. By driving the worm 21 to rotate through the adjusting shaft 4, drive the worm gear 22 to rotate through the worm 21, drive the rotating shaft 23 to rotate through the worm gear 22, and drive the lifting plate 16 to move down through the rotating shaft 23, thereby jacking up the storage tank 1. After completion, the present utility model can be moved through the moving wheels 25.

[0033] The above specific embodiments are merely several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A thermal cycle device for a hydrogen storage tank, comprising a storage tank (1), a cooling water tank (17) and a heating tank (14), characterized in that: A heat preservation chamber (8) is provided near the top of the storage tank (1), and an equipment room (7) is provided near the bottom of the storage tank (1). A cooling water tank (17) is installed on one side of the bottom of the equipment room (7), and a semiconductor refrigerator (18) is installed on one side of the cooling water tank (17). A water inlet pipe (13) is installed on one side of the cooling water tank (17). A return pipe (5) is installed on the side of the cooling water tank (17) away from the water inlet pipe (13). The end of the return pipe (5) is arranged at the top of the heat preservation chamber (8), and the end of the water inlet pipe (13) is connected to the bottom of the heat preservation chamber (8). A heating box (14) is installed in the middle of the water inlet pipe (13), and a heater (19) is installed on the top of the heating box (14).

2. The thermal cycler for a hydrogen storage tank according to claim 1, characterized in that: A circulating pump (15) is installed on one side of the water inlet pipe (13) close to the heating box (14), and a one-way valve (12) is installed near the end of the water inlet pipe (13).

3. The thermal cycler for a hydrogen storage tank according to claim 1, characterized in that: The cold end of the semiconductor refrigerator (18) is arranged inside the cooling water tank (17), and the hot end of the semiconductor refrigerator (18) is equipped with a radiator.

4. The thermal cycler for a hydrogen storage tank according to claim 1, characterized in that: A battery (10) is installed in the middle of the top of the equipment room (7), a controller (11) is installed on the side of the top of the equipment room (7) close to the battery (10), and temperature sensors (9) are installed inside the insulation room (8) and the storage tank (1).

5. The thermal cycler for a hydrogen storage tank according to claim 4, characterized in that: A moving groove (6) is provided in the middle of the bottom of the storage tank (1), a lifting plate (16) is installed in the middle of the moving groove (6), a moving wheel (25) is installed at the bottom of the lifting plate (16), a rotating shaft (23) is installed at the top of the moving groove (6), the rotating shaft (23) is sleeved inside the lifting plate (16), and the rotating shaft (23) and the lifting plate (16) are screwed together by a thread.

6. The thermal cycler for a hydrogen storage tank according to claim 5, characterized in that: Limit rods (24) are installed on both sides of the top of the movable groove (6), and the limit rods (24) penetrate the interior of the lifting plate (16).

7. The thermal cycler for a hydrogen storage tank according to claim 1, characterized in that: The inner top and the inner bottom of the heating box (14) are both provided with partitions (20), and the partitions (20) are arranged in a staggered manner.

8. The thermal cycler for a hydrogen storage tank according to claim 5, characterized in that: A worm gear (22) is mounted in the middle of the outer surface of the rotating shaft (23), an adjusting shaft (4) is mounted on one side of the storage tank (1), and a worm (21) is mounted on one end of the adjusting shaft (4) located on the outer surface of the worm gear (22), and the worm (21) is meshed with the worm gear (22).

9. The thermal cycler for a hydrogen storage tank according to claim 1, characterized in that: The outer surface of the storage tank (1) is installed with a heat-insulating sleeve (3), and the top of the storage tank (1) is installed with a sealing cover (2).

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