Distributed hydrogenation device

Abstract

A distributed hydrogenation device relates to the field of hydrogen energy application and comprises a water heater, a water cooler, a solid hydrogen storage system, a hydrogen booster pump, a cooler and a hydrogenation gun, the solid hydrogen storage system comprises a heat exchanger, a combined placement rack and a plurality of solid hydrogen storage modules, the water heater and the water cooler are connected with the heat exchanger, and the hydrogen booster pump is connected with the combined placement rack. A plurality of solid hydrogen storage modules are placed on the combined placing frame, metal hydrogen storage alloy is arranged in each solid hydrogen storage module and used for storing hydrogen, the solid hydrogen storage system is sequentially connected with the hydrogen booster pump, the cooler and the hydrogenation gun, and a buffer tank is arranged between the hydrogen booster pump and the hydrogenation gun. The temperature of the heat exchanger is regulated and controlled, so that the solid hydrogen storage system supplies hydrogen to the hydrogen booster pump at the required pressure, the hydrogen booster pump supplies hydrogen to the terminal vehicle-mounted hydrogen storage device through the hydrogenation gun after boosting to the required pressure, and the external hydrogen supply equipment supplements hydrogen to the solid hydrogen storage system regularly for the next cycle.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen energy application, in particular to a distributed hydrogenation device. Background Art

[0002] Hydrogen energy is a promising secondary energy source. Its large-scale commercial application in the transportation field faces many challenges, among which the lack of hydrogen refueling stations is a key problem. A hydrogen refueling station usually consists of boosting equipment, hydrogen storage tower, hydrogen refueling equipment and related control equipment. Currently, the construction of hydrogen refueling stations faces problems such as high investment, great safety risks, large land area, and difficult approval.

[0003] The present invention utilizes the advantages of metal hydride solid-state hydrogen storage system, such as high safety, large volume hydrogen storage capacity, and adjustable output pressure, and combines it with boosting equipment to provide a safe and reliable distributed hydrogenation device to promote the commercial application of hydrogen fuel cell vehicles. Utility Model Content

[0004] The purpose of the utility model is to provide a distributed hydrogenation device to solve the problems raised in the above background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A distributed hydrogenation device comprises a chiller, a hot water machine, a solid-state hydrogen storage system, a cooler, a hydrogen booster pump and a hydrogenation gun, wherein the solid-state hydrogen storage system comprises a heat exchanger, a combined placement rack and a plurality of solid-state hydrogen storage modules, the hot water machine and the chiller are connected to the heat exchanger, the heat exchanger is connected to the solid-state hydrogen storage module, the solid-state hydrogen storage module is equipped with a metal hydrogen storage alloy for hydrogen storage, the solid-state hydrogen storage system is connected to the hydrogen booster pump, the cooler and the hydrogenation gun in sequence, and a buffer tank is provided between the hydrogen booster pump and the hydrogenation gun.

[0007] Preferably, a plurality of metal hydride solid-state hydrogen storage bottles are placed inside the solid-state hydrogen storage module, wherein the metal hydride solid-state hydrogen storage bottles are filled with metal hydrogen storage alloys for storing hydrogen, and each of the metal hydride solid-state hydrogen storage bottles is respectively installed with a three-way gas connector, and the three-way gas connectors are connected by a connecting pipe.

[0008] Preferably, the interior of the solid-state hydrogen storage module is filled with water, and a liquid circulation mechanism is provided at the inner bottom of the solid-state hydrogen storage module. The circulating water is heated or cooled through the water heater or the water chiller, thereby heating or cooling the metal hydride solid-state hydrogen storage device. A liquid circulation pipeline base is provided on the front side of the solid-state hydrogen storage module.

[0009] Preferably, a No. 2 liquid pipeline is connected between the water heater and the solid-state hydrogen storage module, and a No. 1 liquid pipeline is connected between the solid-state hydrogen storage module and the chiller. The No. 1 liquid pipeline and the No. 2 liquid pipeline are connected to the liquid circulation mechanism, so that the water inside the solid-state hydrogen storage module is heated or cooled by the water heater or the chiller.

[0010] Preferably, a first gas pipeline is connected between the hydrogen booster pump and the solid-state hydrogen storage module, and the first gas pipeline is in communication with the connecting pipe.

[0011] The advantages and positive effects of the utility model are:

[0012] 1. The utility model regulates the temperature of the heat exchanger so that the solid-state hydrogen storage system provides hydrogen to the hydrogen booster pump at the required pressure. After the hydrogen booster pump is pressurized to the required pressure, hydrogen is supplied to the terminal vehicle-mounted hydrogen storage device through the hydrogenation gun. After the hydrogen release in the solid-state hydrogen storage system is completed, the external hydrogen supply equipment replenishes hydrogen to the solid-state hydrogen storage system for the next cycle. The present invention can realize the safe solid-state storage of hydrogen in the hydrogen filling station when it is not in use, and "increase and use now" during hydrogenation, thereby making the hydrogenation device safer and more reliable, and the solid-state hydrogen storage module and the hydrogen booster pump can be arbitrarily combined according to the requirements of the specific application scenario, so as to realize the flexible configuration of various working scenarios.

[0013] 2. The hydrogen storage module of the utility model usually stores hydrogen in a low-pressure solid state, and the pressure is increased when it is used. There is no high-pressure gas storage, and the safety is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall framework structure of a distributed hydrogenation device of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the hydrogen storage module in the utility model.

[0018] The markings in the accompanying drawings are described as follows: 10, chiller; 12, water heater; 14, liquid pipeline No. 1; 15, combined placement rack; 16, placement space; 17, solid-state hydrogen storage module; 18, first gas pipeline; 19, hydrogen booster pump; 20, second gas pipeline; 21, hydrogenation gun; 23, support frame; 24, metal hydride solid-state hydrogen storage device; 25, gas valve; 26, connecting pipe; 28, liquid circulation pipeline base; 30, liquid pipeline No. 2. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] Combine the following Figure 1-3 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The view direction is consistent in front, back, left, right, up and down directions. Figure 1 It is a front view of the device of the utility model. Figure 1 The directions shown are consistent with the front, back, left, right, up and down directions of the device of the utility model when viewed from the front.

[0021] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0022] See also Figure 1-3 The utility model provides an embodiment: a distributed hydrogenation device, including a chiller 10, a hot water machine 12, a solid-state hydrogen storage system, a cooler, a hydrogen booster pump 19 and a hydrogenation gun 21, the solid-state hydrogen storage system includes a heat exchanger, a combined placement rack 15 and a plurality of solid-state hydrogen storage modules 17, the hot water machine 12 and the chiller 10 are connected to the heat exchanger, the heat exchanger is connected to the solid-state hydrogen storage module 17, the solid-state hydrogen storage module 17 is equipped with a metal hydrogen storage alloy for hydrogen storage, the solid-state hydrogen storage system is connected to the hydrogen booster pump 19, the cooler and the hydrogenation gun 21 in sequence, and a buffer tank is provided between the hydrogen booster pump 19 and the hydrogenation gun 21.

[0023] In addition, in one embodiment, a plurality of metal hydride solid-state hydrogen storage bottles 24 are placed inside the solid-state hydrogen storage module. The metal hydride solid-state hydrogen storage bottles 24 are filled with metal hydrogen storage alloys for hydrogen storage. A three-way gas connector 25 is installed on each of the metal hydride solid-state hydrogen storage bottles 24, and the three-way gas connectors 25 are connected by connecting pipes 26.

[0024] In addition, in one embodiment, the solid-state hydrogen storage module 17 is filled with water, and a liquid circulation mechanism is provided at the bottom of the inner side of the solid-state hydrogen storage module 17. The circulating water is heated or cooled by the water heater 12 or the water chiller 10, thereby heating or cooling the metal hydride solid-state hydrogen storage 24. The front side of the solid-state hydrogen storage module 17 is provided with a liquid circulation pipeline base 28.

[0025] In addition, in one embodiment, a No. 2 liquid pipeline 30 is connected between the water heater 12 and the solid-state hydrogen storage module 17, and a No. 1 liquid pipeline 14 is connected between the solid-state hydrogen storage module 17 and the chiller 10. The No. 1 liquid pipeline 14 and the No. 2 liquid pipeline 30 are connected to the liquid circulation mechanism, so that the water inside the solid-state hydrogen storage module 17 is heated or cooled by the water heater 12 or the chiller 10.

[0026] In addition, in one embodiment, a first gas pipeline 18 is connected between the hydrogen booster pump 19 and the solid-state hydrogen storage module 17 , and the first gas pipeline 18 is in communication with the connecting pipe 26 .

[0027] In specific implementation, the hydrogen refueling method is as follows: hot water is provided to the solid-state hydrogen storage system through a water heater, so that the solid-state hydrogen storage module releases hydrogen with a pressure of 3MPa-5MPa; the pressure of the hydrogen generated in S1.1 is increased to 35MPa or 70MPa through a (one-stage or two-stage) hydrogen booster pump; the pressurized hydrogen is injected into the buffer tank or directly hydrogenated to the on-board hydrogen storage bottle through a condenser.

[0028] Hydrogen replenishment method: Provide circulating cold water to the solid hydrogen storage system through a water chiller; provide 3MPa-5MPa hydrogen to the solid hydrogen storage system through a hydrogen long tube trailer or a water electrolysis hydrogen production device or a photovoltaic + water electrolysis hydrogen production device; turn off the water chiller to stop the circulation of cold water, thereby ending the hydrogen replenishment process and entering the next hydrogenation cycle process

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A distributed hydrogenation device, comprising a chiller (10), a water heater (12), a solid hydrogen storage system, a cooler, a hydrogen booster pump (19) and a hydrogenation gun (21), characterized in that: The solid-state hydrogen storage system comprises a heat exchanger, a combined placement rack (15) and a plurality of solid-state hydrogen storage modules (17); the water heater (12) and the water chiller (10) are connected to the heat exchanger; the heat exchanger is connected to the solid-state hydrogen storage module (17); a metal hydrogen storage alloy is installed in the solid-state hydrogen storage module (17) for storing hydrogen; the solid-state hydrogen storage system is connected to the hydrogen booster pump (19), the cooler and the hydrogenation gun (21) in sequence; a buffer tank is provided between the hydrogen booster pump (19) and the hydrogenation gun (21).

2. A distributed hydrogenation device according to claim 1, characterized in that: A plurality of metal hydride solid-state hydrogen storage bottles (24) are placed inside the solid-state hydrogen storage module. The metal hydride solid-state hydrogen storage bottles (24) are filled with metal hydrogen storage alloys for storing hydrogen. A three-way gas connector (25) is installed on each of the metal hydride solid-state hydrogen storage bottles (24). The three-way gas connectors (25) are connected via a connecting pipe (26).

3. A distributed hydrogenation device according to claim 2, characterized in that: The interior of the solid-state hydrogen storage module (17) is filled with water, a liquid circulation mechanism is provided at the inner bottom of the solid-state hydrogen storage module (17), and a liquid circulation pipeline base (28) is provided at the front side of the solid-state hydrogen storage module (17).

4. A distributed hydrogenation device according to claim 3, characterized in that: A No. 2 liquid pipeline (30) is connected between the water heater (12) and the solid-state hydrogen storage module (17), a No. 1 liquid pipeline (14) is connected between the solid-state hydrogen storage module (17) and the water chiller (10), and the No. 1 liquid pipeline (14) and the No. 2 liquid pipeline (30) are in communication with the liquid circulation mechanism.

5. A distributed hydrogenation device according to claim 4, characterized in that: A first gas pipeline (18) is connected between the hydrogen booster pump (19) and the solid-state hydrogen storage module (17), and the first gas pipeline (18) is in communication with the connecting pipe (26).

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