A rapid cooling device for the bottle mouth of a hydrogen storage bottle

Abstract

The present invention discloses a rapid cooling device for the bottle mouth of a hydrogen storage bottle, which includes a hydrogen storage bottle and a cooling module storing coolant. A bottle mouth valve for cooling the hydrogen at the air inlet and outlet of the hydrogen storage bottle is connected to the outlet of the hydrogen storage bottle. An intake and outlet air pipe is connected to the bottle mouth valve. One end of the intake and outlet air pipe far from the bottle mouth valve is connected to a first outlet pipe and a speed reduction power generation module. The output end of the speed reduction power generation module and one end of the first outlet pipe far from the intake and outlet air pipe are both connected to filters. The hydrogen filtered by the filters is transmitted to a hydrogen fuel cell. The cooling module includes a fixed housing. A liquid storage and condensation housing with an upward opening is connected inside the fixed housing. A liquid outlet control valve is connected inside the liquid storage and condensation housing. A liquid outlet pipe communicating with the output end of the liquid outlet control valve is connected to the liquid storage protrusion. One end of the liquid outlet pipe far from the liquid outlet control valve extends outside the fixed housing and is connected to the bottle mouth valve; the present invention can improve the cooling speed of the coolant and reduce the temperature of the hydrogen output at the bottle mouth of the hydrogen storage bottle.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen supply, in particular to a device for quickly cooling the mouth of a hydrogen storage bottle. Background Art

[0002] With the transformation of energy structure, hydrogen energy, as a clean and efficient form of energy, has been widely used in transportation, industry and other fields. Hydrogen storage technology is one of the key technologies for hydrogen energy application. Among them, hydrogen storage bottles, as the main hydrogen storage equipment, their performance directly affects the application effect of hydrogen energy. However, during the high-pressure rapid filling process, hydrogen storage bottles will generate a large amount of heat due to the compression effect of hydrogen. If the heat cannot be effectively controlled, it will affect the service life of the hydrogen storage bottles. Therefore, how to achieve rapid cooling of hydrogen storage bottles during the filling process is an urgent problem to be solved in the current field of hydrogen storage technology.

[0003] There are two existing methods for hydrogen refueling. The first involves pre-cooling the hydrogen to -20°C to -40°C for storage, then refilling the low-temperature hydrogen into the vehicle's hydrogen storage tank. This process consumes significant energy. The second method involves staged refueling, which extends the refueling time to keep the temperature inside the hydrogen storage tank below the specified temperature limit, further increasing user waiting time. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] The present invention is proposed in view of the above-mentioned problems and / or the problems existing in the prior art when providing hydrogen to a hydrogen fuel cell.

[0006] The technical problem solved by the present invention is that the temperature of hydrogen output from the mouth of the hydrogen storage bottle is high.

[0007] Therefore, the purpose of the present invention is to provide a rapid cooling device for the mouth of a hydrogen storage bottle, which can increase the cooling rate of the coolant and reduce the temperature of the hydrogen output at the mouth of the hydrogen storage bottle to meet the temperature requirements when supplying hydrogen to hydrogen fuel.

[0008] To solve the above technical problems, the present invention provides the following technical solution: A rapid cooling device for the mouth of a hydrogen storage bottle, which includes a hydrogen storage bottle and a cooling module storing coolant. A bottle mouth valve is connected to the outlet of the hydrogen storage bottle. One end of the bottle mouth valve far from the hydrogen storage bottle has a liquid inlet, a liquid outlet and a first air outlet respectively. The liquid inlet and the liquid outlet are communicated. An air inlet and outlet pipe is connected to the first air outlet of the bottle mouth valve. A first solenoid valve is connected to the air inlet and outlet pipe. One end of the air inlet and outlet pipe far from the bottle mouth valve is connected to a first outlet pipe and a deceleration power generation module. A second solenoid valve is connected to the first outlet pipe. The output end of the deceleration power generation module and one end of the first outlet pipe far from the air inlet and outlet pipe are both connected with filters. The hydrogen gas filtered by the filters is transmitted to a hydrogen fuel cell. The cooling module includes a fixed housing. A liquid storage and condensation housing with an upward opening is fixedly connected inside the fixed housing. The inner diameter of the liquid storage and condensation housing gradually decreases from top to bottom. A liquid storage protrusion protruding upward is provided at the center of the lower part of the liquid storage and condensation housing. An outlet liquid control valve is connected to the upper part of the liquid storage protrusion. An outlet liquid hole is opened at the center of the liquid storage protrusion. The liquid storage protrusion is connected with an outlet liquid pipe through the outlet liquid hole. The output end of the outlet liquid control valve and the upper end of the outlet liquid pipe are connected. A rotating shaft is rotatably connected to the upper part of the fixed housing. One end of the rotating shaft extending into the liquid storage and condensation housing is fixedly connected with an acceleration cooling member. An installation sink is opened on the upward side of the acceleration cooling member. The acceleration cooling member is just inserted with a liquid inlet plate through the installation sink. The lower side of the liquid inlet plate abuts against the acceleration cooling member. The upper side of the liquid inlet plate is fixedly connected to the fixed housing. The upper end of the acceleration cooling member is rotatably connected to the liquid inlet plate. A liquid inlet pipe is connected to the liquid inlet plate. The acceleration cooling member has an annular cooling cavity. The coolant discharged downward by the liquid inlet pipe enters the cooling cavity. A plurality of liquid throwing pipes inclined from top to bottom are provided on the outer side of the acceleration cooling member. One end of the outlet liquid pipe far from the outlet liquid control valve extends out of the fixed housing and is connected to the bottle mouth valve through the liquid inlet. The liquid output from the liquid outlet can flow into the liquid inlet pipe.

[0009] As a preferred scheme of the rapid cooling device for the mouth of the hydrogen storage bottle of the present invention, wherein: A driving motor is further fixedly connected above the fixed housing, and the driving motor is connected to the rotating shaft.

[0010] As a preferred scheme of the rapid cooling device for the mouth of the hydrogen storage bottle of the present invention, wherein: A liquid outlet baffle is hinged inside the liquid throwing pipe. One side of the liquid outlet baffle far from the center of the liquid throwing pipe is connected with a liquid outlet spring. The side of the liquid outlet spring far from the liquid outlet baffle is connected to the inner wall of the liquid throwing pipe. When there is no external force on the liquid outlet baffle, the liquid outlet baffle blocks the outlet of the liquid throwing pipe under the action of the liquid outlet spring.

[0011] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle neck of the present invention, the following is provided: The bottle neck valve includes a valve core seat, a valve core is connected inside the valve core seat, a connecting sleeve disposed inside the valve core seat is fixed to one end of the valve core relative to the hydrogen storage bottle, the connecting sleeve is connected to the outlet of the hydrogen storage bottle, the intake and outlet pipe is connected to the valve core at one end of the first air outlet away from the connecting sleeve, a plurality of spaced partitions are arranged on the outer periphery of the valve core, a first coolant groove and a second coolant groove are respectively provided on the valve core on both sides in the radial direction of the partition, a first coolant hole is opened on the valve core near the outer end of the first coolant groove, a plurality of first coolant holes are interconnected, the liquid inlet is communicated with the first coolant groove at the end away from the connecting sleeve, an annular return groove is opened on the outer periphery of the valve core close to one side of the connecting sleeve, a second coolant hole is opened on the valve core near the outer end of the second coolant groove, both the liquid inlet and the liquid outlet are opened on one side of the valve core seat away from the connecting sleeve, the valve core seat is connected with a return pipe through the liquid outlet, and the end of the return pipe away from the valve core seat is connected to the inlet pipe.

[0012] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle neck of the present invention, the following is provided: A liquid pump is connected between the return pipe and the inlet pipe.

[0013] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle neck of the present invention, the following is provided: The deceleration power generation module includes at least one deceleration power generation unit, the deceleration power generation unit includes a deceleration power generation housing, a first connecting plate is fixed to the upper part inside the deceleration power generation housing, a vertical plate is fixed to the lower side of the first connecting plate, intermediate plates are respectively fixed to both sides of the vertical plate, the intermediate plates are fixed to the inside of the deceleration power generation housing on the side away from the vertical plate, a first accommodation cavity is formed between the upper side of the intermediate plate, the vertical plate, the lower side of the first connecting plate and the inside of the deceleration power generation housing, a fan blade is rotatably connected to the deceleration power generation housing at the first accommodation cavity, a connecting sink is opened on the fan blade, a first piezoelectric ceramic connected inside the deceleration power generation housing is connected to the fan blade at the connecting sink, the center of the first piezoelectric ceramic is disposed offset from the rotation center of the first offset fan blade, a plurality of sliding grooves are arranged on the outer periphery of the first piezoelectric ceramic, the first piezoelectric ceramic is slidably connected with a sliding block through the sliding grooves, a first piezoelectric spring is connected to one end of the sliding block relative to the first piezoelectric ceramic, the side of the first piezoelectric spring away from the sliding block is connected to the first piezoelectric ceramic, a rotating slider is connected to the side of the sliding block away from the first piezoelectric spring, and the fan blade just rotates along the outside of the rotating slider, at least one air inlet is respectively opened on the first connecting plates on both sides of the vertical plate, air outlet deceleration holes are opened at the bottom of the deceleration power generation housing on both sides of the vertical plate, the first accommodation cavity can be communicated with the air outlet deceleration holes, and the first piezoelectric ceramic is electrically connected to a filter.

[0014] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle mouth of the present invention, the following is provided: At least one first intake valve is respectively connected to the intermediate plates on both sides of the vertical plate. A deceleration seat with a deceleration chamber is fixed to the lower side of the intermediate plate at the first intake valve. A piston is slidably connected within the deceleration seat. A second piezoelectric spring is connected to the lower side of the piston. The lower side of the second piezoelectric spring is connected to a second piezoelectric ceramic connected within the deceleration seat. An exhaust hole communicating with the outlet deceleration hole is opened on the deceleration seat above the second piezoelectric ceramic. The second piezoelectric ceramic is electrically connected to the filter.

[0015] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle mouth of the present invention, the following is provided: Second connecting plates are respectively fixed to both sides of the vertical plate. The upper sides of the second connecting plates are disposed away from the vertical plate and fixed to the lower sides of the corresponding intermediate plates. A second accommodation cavity is formed among the lower side of the intermediate plate, the upper side of the second connecting plate, the vertical plate, and the inner side of the deceleration power generation housing. An air outlet baffle is hinged to the vertical plate at the upper part of the second accommodation cavity. A third piezoelectric spring is connected to the lower side of the air outlet baffle. The side of the third piezoelectric spring away from the air outlet baffle is connected to a third piezoelectric ceramic connected to the vertical plate. A second air outlet hole is opened on the second connecting plate. At least one second intake valve for controlling the intake of gas is respectively connected to the intermediate plates on both sides of the vertical plate. When the second intake valve is opened, gas enters the second accommodation cavity through the second intake valve. The third piezoelectric ceramic is electrically connected to the filter.

[0016] As a preferred embodiment of the rapid cooling device for the hydrogen storage bottle mouth of the present invention, the following is provided: The electrical signal output by the deceleration power generation module is transmitted to the rectifier after being filtered by the filter, and the current after being rectified by the rectifier is transmitted to the storage battery for storage.

[0017] Compared with the prior art, the present invention has the following technical effects: Through the combined setting of the cooling module and the bottle mouth valve, the present invention achieves the rapid cooling of hydrogen, and the coolant can be recycled; Through the setting of the deceleration power generation module, the high-pressure hydrogen output by the hydrogen storage bottle is output to the hydrogen fuel cell after being decelerated in multiple stages, meeting the demand for the gas supply speed of the hydrogen fuel cell. At the same time, the kinetic energy of hydrogen during the deceleration process is converted into electrical energy for storage, which is more energy-efficient; The present invention can be applied to the work of supplying hydrogen to the hydrogen fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 This is a schematic internal structure diagram of the cooling module in the present invention.

[0021] Figure 3 This is a partial structure diagram when the accelerated cooling component in the cooling module is connected inside the fixed housing.

[0022] Figure 4 This is a partial structure diagram when the liquid outlet baffle inside the liquid throwing tube is closed.

[0023] Figure 5 This is a partial structure diagram when the liquid outlet baffle inside the liquid throwing tube is open.

[0024] Figure 6 This is a partial sectional structure diagram of the bottle mouth valve.

[0025] Figure 7 This is a sectional perspective view of the deceleration power generation unit in the present invention.

[0026] Figure 8 This is a three-dimensional structure diagram when the fan blade and the rotating sleeve are connected together.

[0027] Figure 9 This is a structure diagram inside the rotating sleeve.

[0028] Figure 10 This is a structure diagram of the deceleration seat and its internal components.

[0029] Figure 11 This is a structure diagram of the deceleration seat when the piston is pressed down and the exhaust hole is opened.

[0030] Figure 12 This is a three-dimensional structure diagram of the bottle mouth valve.

[0031] In the figure, 1 is a deceleration power generation unit, 101 is a third piezoelectric spring, 102 is an air outlet baffle, 103 is a deceleration seat, 103a is an exhaust hole, 104 is a deceleration power generation housing, 104a is a vertical plate, 104b is a first connecting plate, 104c is an inlet, 104d is an air inlet, 104e is a second air outlet hole, 104f is an air outlet deceleration hole, 104g is an intermediate plate, 104h is a second connecting plate, 105 is a fan blade, 106 is a second air inlet valve, 107 is a first air inlet valve, 108 is a piston, 109 is a second piezoelectric spring, 110 is a second piezoelectric ceramic, 111 is a rotating sleeve, 111a is a connecting groove, 112 is a first piezoelectric ceramic, 113 is a first piezoelectric spring, 114 is a rotating slider, 115 is a sliding block, 116 is a third piezoelectric ceramic, 2 is a hydrogen flow sensor, 3 is a filter, 4 is a rectifier, 5 is a storage battery, 6 is a first solenoid valve, 7 is a hydrogen storage bottle, 8 is a bottle mouth valve, 801 is a valve core, 801a is a connecting sleeve, 801b is a first coolant hole, 801c is a first coolant groove, 801d is a partition, 801e is a second coolant groove, 801f is a liquid return groove, 801g is a second coolant hole, 801h is a first air outlet hole, 802 is a valve core seat, 802a is a liquid inlet, 802b is a liquid outlet, 9 is a cooling module, 901 is a liquid inlet pipe, 902 is a driving motor, 903 is a liquid outlet pipe, 904 is a fan, 905 is a fixed housing, 905a is a cooling air port, 906 is a heat insulation layer, 907 is a liquid storage and condensation housing, 907a is an opening, 907b is a liquid storage protrusion, 908 is an accelerated cooling part, 908a is a liquid throwing pipe, 908b is a cooling cavity, 908c is a mounting groove, 909 is a rotating shaft, 910 is a liquid inlet plate, 911 is a liquid outlet spring, 912 is a liquid outlet baffle, 913 is a liquid outlet control valve, 10 is a control unit, 11 is an air inlet control valve, 12 is a hydrogen storage tank, 13 is a second solenoid valve, 14 is a hydrogen fuel cell, 15 is a filter, 16 is a first air outlet pipe, 17 is a liquid return pipe, 18 is a temperature sensor, 19 is a liquid pump, 20 is a second air outlet pipe. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or selectively exclusive embodiment with other embodiments.

[0035] Example 1

[0036] Reference Figures 1 to 6 and Figure 12 In this example, a rapid cooling device for the mouth of a hydrogen storage bottle is provided, which can achieve rapid temperature reduction when hydrogen enters and exits the mouth of the hydrogen storage bottle 7.

[0037] A rapid cooling device for the mouth of a hydrogen storage bottle, which includes a hydrogen storage bottle 7 and a cooling module 9 storing coolant. A bottle mouth valve 8 is connected to the outlet of the hydrogen storage bottle 7. One end of the bottle mouth valve 8 away from the hydrogen storage bottle 7 has a liquid inlet 802a, a liquid outlet 802b and a first air outlet 801h respectively. The liquid inlet 802a and the liquid outlet 802b are connected. An air inlet and outlet pipe is connected to the first air outlet 801h of the bottle mouth valve 8. One end of the air inlet and outlet pipe away from the bottle mouth valve 8 is connected to a first outlet pipe 16 and a deceleration and power generation module. A first solenoid valve 6 is connected to the air inlet and outlet pipe between the output end of the bottle mouth valve 8 and the first outlet pipe 16. The deceleration and power generation module is used for decelerating hydrogen and converting the kinetic energy of hydrogen into electric energy during the hydrogen deceleration process. A second solenoid valve 13 is connected to the first outlet pipe 16. Filters 15 are connected to both the output end of the deceleration and power generation module and the end of the first outlet pipe 16 away from the air inlet and outlet pipe. The hydrogen filtered by the filters 15 is transmitted to a hydrogen fuel cell 14. The electrical signal output by the deceleration and power generation module is filtered by a filter 3 and then transmitted to a rectifier 4. The electric energy rectified and regulated by the rectifier 4 is transmitted to a storage battery 5 for storage. The cooling module 9 includes a fixed housing 905. An insulating layer 906 is provided inside the fixed housing 905. The bottom of the fixed housing 905 has a bottom plate. A cooling air port 905a is opened on the bottom plate. A blower 904 is fixedly connected to the bottom plate. A liquid storage and condensation housing 907 with an upward opening 907a is fixedly connected inside the fixed housing 905. The inner diameter of the liquid storage and condensation housing 907 gradually decreases from top to bottom. A liquid storage protrusion 907b protruding upward is provided at the center of the lower part of the liquid storage and condensation housing 907. An outlet liquid control valve 913 is connected to the upper part of the liquid storage protrusion 907b. An outlet liquid hole is opened at the center of the liquid storage protrusion 907b. The liquid storage protrusion 907b is connected to an outlet liquid pipe 903 through the outlet liquid hole. The output end of the outlet liquid control valve 913 and the upper end of the outlet liquid pipe 903 are connected. A rotating shaft 909 is rotatably connected to the upper part of the fixed housing 905. One end of the rotating shaft 909 extending into the liquid storage and condensation housing 907 is fixedly connected to an acceleration cooling member 908. An installation sink 908c is opened on the upward side of the acceleration cooling member 908. The acceleration cooling member 908 is just inserted with a liquid inlet plate 910 through the installation sink 908c. The lower side of the liquid inlet plate 910 abuts against the acceleration cooling member 908. The upper side of the liquid inlet plate 910 is fixedly connected to the fixed housing 905. The upper end of the acceleration cooling member 908 is rotatably connected to the liquid inlet plate 910. A liquid inlet pipe 901 is connected to the liquid inlet plate 910. An annular cooling cavity 908b is provided on the acceleration cooling member 908. The coolant discharged downward by the liquid inlet pipe 901 enters the cooling cavity 908b. A plurality of liquid throwing pipes 9,08a inclined from top to bottom are provided outside the acceleration cooling member 908. The end of the outlet liquid pipe 903 away from the outlet liquid control valve 913 extends out of the fixed housing 905 and is connected to the bottle mouth valve 8 through the liquid inlet 802a. The liquid output from the liquid outlet 802b can flow into the liquid inlet pipe 901. A drive motor 902 is also fixedly connected above the fixed housing 905. The drive motor 902 is connected to the rotating shaft 909;A liquid discharging baffle 912 is hinged inside the liquid discharging pipe 908a. A liquid discharging spring 911 is connected to the side of the liquid discharging baffle 912 away from the center of the liquid discharging pipe 908a. The side of the liquid discharging spring 911 away from the liquid discharging baffle 912 is connected to the inner wall of the liquid discharging pipe 908a. When there is no external force acting on the liquid discharging baffle 912, the liquid discharging baffle 912 blocks the outlet of the liquid discharging pipe 908a under the action of the liquid discharging spring 911.;

[0038] It also includes a control unit 10 and a hydrogen storage tank 12 for storing hydrogen. The output end of the hydrogen storage tank 12 is connected to the other end of the intake and outlet pipe away from the bottle mouth valve 8. An intake control valve 11 is connected to the intake and outlet pipe between the hydrogen storage tank 12 and the hydrogen storage bottle 7. A temperature sensor 18 is arranged in the hydrogen storage bottle 7. The temperature sensor 18 sends the detected temperature signal to the control unit 10, and the control unit 10 controls the opening and closing of each control valve. At the beginning, there is no hydrogen in the hydrogen storage bottle 7. The control unit 10 controls the intake control valve 11 to open, and the hydrogen storage tank 12 fills hydrogen into the hydrogen storage bottle 7. When the filled hydrogen quantity reaches the set quantity, the control unit 10 controls the intake control valve 11 to close, and the hydrogen filling ends. In addition, a coolant is stored through a cooling device. When filling hydrogen, the liquid outlet control valve 913 is opened, and the coolant in the liquid storage and condensation housing 907 flows downward. At the same time, the liquid pump 19 is opened, and the flowing coolant flows into the return pipe 17 after passing through the bottle mouth valve 8. Entering the return pipe 17, the liquid pump 19 pumps the heated coolant to the inlet pipe 901 and enters the cooling cavity 908b along the inlet pipe 901, driving the drive motor 902 to act and accelerating the rotation of the cooling member 908. Due to the action of the liquid outlet spring 911, a part of the coolant will be stored in the liquid throwing pipe 908a. As the coolant increases, the liquid outlet spring 911 compresses, and the liquid outlet baffle 912 opens. The preliminarily cooled coolant is thrown outwards through the liquid throwing pipe 908a, and the thrown coolant is thrown onto the upper part of the inner wall of the liquid storage and condensation housing 907, increasing the sliding distance of the coolant in the liquid storage and condensation housing 907 and improving the cooling effect. The coolant converges on the inner wall of the liquid storage and condensation housing 907 in the cooling cavity 908b for further cooling, completing the further cooling and circulation of the coolant. At the same time, the fan 904 is opened, and the cold air blown by the fan 904 acts on the wall surface of the liquid storage and condensation housing 907 to accelerate its heat dissipation and further accelerate the cooling speed. When supplying hydrogen from the hydrogen storage bottle 7 to the hydrogen fuel cell 14, the temperature sensor 18 transmits the detected temperature signal to the control unit 10. If the hydrogen temperature is higher than the set temperature threshold, the first solenoid valve 6 is controlled to open, and the above cooling working cycle is carried out to further reduce the temperature of the hydrogen supply and improve the cooling effect of hydrogen during hydrogen supply. Otherwise, the first solenoid valve 6 is in a closed state. At the same time, the hydrogen output through the bottle mouth valve 8 flows through the intake and outlet pipe to the power generation and deceleration module and the first outlet pipe 16. The second solenoid valve 13 is opened. If the hydrogen surplus is small, that is, the hydrogen discharge speed from the hydrogen storage bottle 7 is low and the deceleration power generation module does not work, the hydrogen directly flows through the second solenoid valve 13 to the filter 15. After the filter 15 filters out impurities, it supplies hydrogen to the hydrogen fuel cell 14.

[0039] Specifically, the bottle mouth valve 8 includes a valve core seat 802. A valve core 801 is connected inside the valve core seat 802. At one end of the valve core 801 opposite to the hydrogen storage bottle 7, there is a connecting sleeve 801a arranged inside the valve core seat 802. The connecting sleeve 801a is connected to the outlet of the hydrogen storage bottle 7. The intake and outlet gas pipe is connected to the valve core 801 at the end of the first air outlet hole 801h far from the connecting sleeve 801a. A number of partition plates 801d are arranged at intervals on the outer periphery of the valve core 801. On the valve core 801 on both sides in the radial direction of the partition plate 801d, there are respectively a first coolant groove 801c and a second coolant groove 801e. On the valve core 801 near the outer end of the first coolant groove 801c, there are first coolant holes 801b. A number of first coolant holes 801b are interconnected. The liquid inlet 802a is communicated with the first coolant groove 801c at the end far from the connecting sleeve 801a. On the outer periphery of the valve core 801 close to one side of the connecting sleeve 801a, there is an annular liquid return groove 801f. On the valve core 801 near the outer end of the second coolant groove 801e, there are second coolant holes 801g. Both the liquid inlet 802a and the liquid outlet 802b are arranged on one side of the valve core seat 802 far from the connecting sleeve 801a. The valve core seat 802 is connected with a liquid return pipe 17 through the liquid outlet 802b. One end of the liquid return pipe 17 far from the valve core seat 802 is connected with a liquid inlet pipe 901. A liquid pump 19 is connected between the liquid return pipe 17 and the liquid inlet pipe 901.

[0040] When cooling the hydrogen output from the hydrogen storage bottle 7 or cooling during hydrogen filling, the coolant flowing out of the liquid outlet pipe 903 quickly enters the valve core seat 802 through the liquid inlet 802a and contacts the outer edge of the valve core 801. The first coolant groove 801c flows from right to left towards the direction where the hydrogen storage bottle 7 is located. After flowing to the liquid return groove 801f, it then flows from left to right through the second coolant holes 801g and the second coolant groove 801e in sequence and flows out through the liquid outlet 802b, taking away the heat of the hydrogen, and then flowing into the liquid return pipe 17 to facilitate the circulation of the coolant.

[0041] Embodiment 2

[0042] Refer to Figures 7 to 11 , this embodiment provides a rapid cooling device for the bottle mouth of a hydrogen storage bottle. The difference from Embodiment 1 is that this embodiment can further decelerate hydrogen, convert the kinetic energy of hydrogen into electric energy for storage during the deceleration process, realize the recovery of electric quantity, and is more energy-saving and environmentally friendly.

[0043] Specifically, the deceleration power generation module includes at least one deceleration power generation unit 1. In this embodiment, two deceleration power generation units 1 are provided. The deceleration power generation unit 1 includes a deceleration power generation housing 104. An upper part inside the deceleration power generation housing 104 is fixed with a first connecting plate 104b. A vertical plate 104a is fixed under the first connecting plate 104b. Intermediate plates 104g are respectively fixed on both sides of the vertical plate 104a. One side of the intermediate plate 104g away from the vertical plate 104a is fixed inside the deceleration power generation housing 104. A first accommodation cavity is formed among the upper side of the intermediate plate 104g, the vertical plate 104a, the lower side of the first connecting plate 104b and the inside of the deceleration power generation housing 104. A fan blade 105 is rotatably connected to the deceleration power generation housing 104 at the first accommodation cavity. A rotating sleeve 111 is fixedly connected to the fan blade 105. The rotating sleeve 111 is rotatably connected to the deceleration power generation housing 104. A connecting sunk groove 111a is opened on one side of the rotating sleeve 111 away from the fan blade 105. A first piezoelectric ceramic 112 connected inside the deceleration power generation housing 104 is connected to the fan blade 105 at the connecting sunk groove 111a. The center of the first piezoelectric ceramic 112 is arranged deviating from the rotation center of the first deviation fan blade 105. A plurality of sliding grooves are arranged on the outer periphery of the first piezoelectric ceramic 112. The first piezoelectric ceramic 112 is slidably connected with a sliding block 115 through the sliding grooves. One end of the sliding block 115 relative to the first piezoelectric ceramic 112 is connected with a first piezoelectric spring 113. One side of the first piezoelectric spring 113 away from the sliding block 115 is connected to the first piezoelectric ceramic 112. One side of the sliding block 115 away from the first piezoelectric spring 113 is connected with a rotating slider 114. The fan blade 105 just rotates along the outside of the rotating slider 114. An inlet 104c is opened at the top of the deceleration power generation housing 104. At least one air inlet 104d is respectively opened on the first connecting plates 104b on both sides of the vertical plate 104a. Air outlet deceleration holes 104f are opened at the bottom of the deceleration power generation housing 104 on both sides of the vertical plate 104a. A second air outlet pipe 20 is connected to the air outlet deceleration hole 104f of the front deceleration power generation housing 104. The end of the second air outlet pipe 20 is connected to the inlet 104c of the rear deceleration power generation housing 104. The first accommodation cavity can communicate with the air outlet deceleration hole 104f. The first piezoelectric ceramic 112 is electrically connected to the filter 3. At least one first air inlet valve 107 is respectively connected to the intermediate plates 104g on both sides of the vertical plate 104a. A deceleration seat 103 with a deceleration chamber is fixed under the intermediate plate 104g at the first air inlet valve 107. A piston 108 is slidably connected inside the deceleration seat 103. A second piezoelectric spring 109 is connected to the lower side of the piston 108. The lower side of the second piezoelectric spring 109 is connected with a second piezoelectric ceramic 110 connected inside the deceleration seat 103. An exhaust hole 103a communicating with the air outlet deceleration hole 104f is opened on the deceleration seat 103 above the second piezoelectric ceramic 110. The second piezoelectric ceramic 110 is electrically connected to the filter 3. The current generated by the first piezoelectric ceramic 112 and the second piezoelectric ceramic 110 is filtered by the filter 3 to remove clutter, and then rectified and stabilized by the rectifier 4, and the electric energy is stored in the storage battery 5.

[0044] A hydrogen flow sensor 2 is connected to the first gas outlet pipe 16 between the first solenoid valve 6 and the first gas outlet pipe 16, and the hydrogen flow sensor 2 detects the flow rate of hydrogen. When supplying gas to the hydrogen fuel cell 14, the control unit 10 controls the first solenoid valve 6 to open, and the hydrogen flow sensor 2 detects the hydrogen flow rate. If the detected hydrogen flow rate is less than the set hydrogen flow rate threshold, the control unit 10 controls the second solenoid valve 13 to open, and the hydrogen directly outputs from the first gas outlet pipe 16 and is filtered by the filter 15 to provide hydrogen for the hydrogen fuel cell 14; otherwise, the second solenoid valve 13 is closed, and the high-pressure hydrogen enters the deceleration and power generation housing 104 from the air inlet 104d, driving the fan blade 105 to rotate to achieve the preliminary deceleration of hydrogen. At the same time, the fan blade 105 rotates along the outside of the rotating slider 114. Each rotating slider 114 is an eccentric structure. The fan blade 105 pushes the corresponding rotating slider 114 to slide. The rotating slider 114 moving towards the center of the first piezoelectric ceramic 112 pushes the slider 115 to move, compressing the first piezoelectric spring 113 and applying pressure to the first piezoelectric ceramic 112. The first piezoelectric ceramic 112 generates an electric current and outputs it to the filter 3. As the fan blade 105 rotates, hydrogen enters the deceleration chamber from the opened first intake valve 107. At this time, the second intake valve 106 is in a closed state. After the hydrogen enters the deceleration chamber, it presses the piston 108 to move downward, compressing the second piezoelectric spring 109. The second piezoelectric ceramic 110 generates an electric current under pressure and outputs it to the filter 3. When the piston 108 is compressed to a certain extent, the hydrogen flows out from the exhaust hole 103a, achieving the further deceleration of hydrogen.

[0045] Specifically, second connecting plates 104h are respectively fixed on both sides of the vertical plate 104a. The upper sides of the second connecting plates 104h are arranged away from the vertical plate 104a and fixed to the lower sides of the corresponding intermediate plates 104g. A second accommodation cavity is formed among the lower side of the intermediate plate 104g, the upper side of the second connecting plate 104h, the vertical plate 104a, and the inner side of the deceleration and power generation housing 104. An air outlet baffle 102 is hinged on the vertical plate 104a at the upper part of the second accommodation cavity. A third piezoelectric spring 101 is connected to the lower side of the air outlet baffle 102. The side of the third piezoelectric spring 101 away from the air outlet baffle 102 is connected to a third piezoelectric ceramic 116 connected to the vertical plate 104a. A second air outlet hole 104e is formed on the second connecting plate 104h. At least one second intake valve 106 for controlling the intake of gas is respectively connected to the intermediate plates 104g on both sides of the vertical plate 104a. When the second intake valve 106 is opened, the gas enters the second accommodation cavity through the second intake valve 106. The third piezoelectric ceramic 116 is electrically connected to the filter 3. The electric current generated by the third piezoelectric ceramic 116 under pressure is filtered by the filter 3 to remove the clutter, and then rectified and stabilized by the rectifier 4, and the electric energy is stored in the storage battery 5.

[0046] If the velocity of the discharged hydrogen is still on the high side and the above process is insufficient to achieve the ideal hydrogen velocity, the second intake valve 106 opens, and the hydrogen passing through the second intake valve 106 acts on the outlet baffle 102, pushing the outlet baffle 102 to rotate. The outlet baffle 102 pushes the third piezoelectric spring 101 to move, compressing the third piezoelectric spring 101. The third piezoelectric spring 101 applies pressure to the third piezoelectric ceramic 116, and the third piezoelectric ceramic 116 generates an electric current under the pressure and outputs it to the filter 3. After the outlet baffle 102 rotates through the second outlet hole 104e, the hydrogen passes through the second outlet hole 104e and is discharged downward, further decelerating the hydrogen. The decelerated hydrogen is discharged from the outlet deceleration hole 104f, filtered by the filter 15, and then supplied to the hydrogen fuel cell 14.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A rapid cooling device for the mouth of a hydrogen storage bottle, characterized by: The invention comprises a hydrogen storage bottle (7) and a cooling module (9) storing a coolant, wherein the outlet of the hydrogen storage bottle (7) is connected to a bottle mouth valve (8), and the bottle mouth valve (8) has a liquid inlet (802a), a liquid outlet (802b) and a first air outlet (801h) at one end away from the hydrogen storage bottle (7), the liquid inlet (802a) and the liquid outlet (802b) are communicated, the first air outlet (801h) of the bottle mouth valve (8) is connected to an air inlet and outlet pipe, the air inlet and outlet pipe is connected to a first electromagnetic valve (6), the air inlet and outlet pipe is connected to one end away from the bottle mouth valve (8) and a first air outlet pipe (16) and a deceleration power generation module, the first air outlet pipe (16) is connected to a second electromagnetic valve ( 13), the output end of the deceleration power generation module and the end of the first outlet pipe (16) away from the air inlet and outlet pipes are both connected to a filter (15), and the hydrogen filtered by the filter (15) is transmitted to the hydrogen fuel cell (14), the cooling module (9) includes a fixed shell (905), and a liquid storage condensation shell (907) with an upward opening (907a) is fixedly connected to the fixed shell (905), the inner diameter of the liquid storage condensation shell (907) gradually decreases from top to bottom, and the center of the lower part of the liquid storage condensation shell (907) has an upwardly protruding liquid storage protrusion (907b), and the upper part of the liquid storage protrusion (907b) is connected to a liquid outlet control valve (913), and the liquid storage protrusion (907b) is connected to the liquid outlet control valve (913). ) is provided with a liquid outlet hole at the center, the liquid storage protrusion (907b) is connected to the liquid outlet pipe (903) through the liquid outlet hole, the output end of the liquid outlet control valve (913) is connected to the upper end of the liquid outlet pipe (903), the upper part of the fixed shell (905) is rotatably connected to a rotating shaft (909), one end of the rotating shaft (909) extending into the liquid storage condensation shell (907) is fixedly connected to an accelerated cooling member (908), an installation sink groove (908c) is provided on the upper side of the accelerated cooling member (908), and the accelerated cooling member (908) is just connected to a liquid inlet plate (910) through the installation sink groove (908c), the lower side of the liquid inlet plate (910) abuts against the accelerated cooling member (908), and the upper side of the liquid inlet plate (910) is fixedly connected to the accelerated cooling member (908). On the fixed shell (905), the upper end of the accelerated cooling member (908) is rotatably connected to the liquid inlet plate (910), the liquid inlet plate (910) is connected to the liquid inlet pipe (901), the accelerated cooling member (908) is provided with an annular cooling cavity (908b), the cooling liquid discharged downward from the liquid inlet pipe (901) enters the cooling cavity (908b), the outer side of the accelerated cooling member (908) is provided with a plurality of liquid-swinging pipes (908a) inclined from top to bottom, one end of the liquid outlet pipe (903) away from the liquid outlet control valve (913) extends out of the fixed shell (905) and is connected to the bottle mouth valve (8) through the liquid inlet port (802a), and the liquid output from the liquid outlet port (802b) can flow into the liquid inlet pipe (901).

2. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 1, characterized in that: A driving motor (902) is also fixedly connected above the fixed housing (905), and the driving motor (902) is connected to a rotating shaft (909).

3. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 1 or 2, characterized in that: A liquid outlet baffle (912) is hingedly connected to the inner side of the liquid-spinning tube (908a); a liquid outlet spring (911) is connected to the side of the liquid outlet baffle (912) away from the center of the liquid-spinning tube (908a); a side of the liquid outlet spring (911) away from the liquid outlet baffle (912) is connected to the inner wall of the liquid-spinning tube (908a); when no external force acts on the liquid outlet baffle (912), the liquid outlet baffle (912) blocks the outlet of the liquid-spinning tube (908a) under the action of the liquid outlet spring (911).

4. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 1 or 2, characterized in that: The bottle mouth valve (8) includes a valve core seat (802), a valve core (801) is connected to the valve core seat (802), a connecting sleeve (801a) arranged in the valve core seat (802) is fixed to one end of the valve core (801) relative to the hydrogen storage bottle (7), the connecting sleeve (801a) is connected to the outlet of the hydrogen storage bottle (7), the air inlet and outlet pipes are connected to the valve core (801) at one end of the first air outlet (801h) away from the connecting sleeve (801a), a plurality of spaced partitions (801d) are arranged on the periphery of the valve core (801), a first cooling liquid groove (801c) and a second cooling liquid groove (801e) are respectively provided on the valve core (801) on both sides of the partition (801d) in the radial direction, and a valve core (801) near the outer end of the first cooling liquid groove (801c) is opened. A first cooling liquid hole (801b) is provided, and a plurality of first cooling liquid holes (801b) are interconnected. A liquid inlet (802a) is connected to a first cooling liquid groove (801c) at one end away from the connecting sleeve (801a). An annular return liquid groove (801f) is provided on the outer periphery of the valve core (801) close to one side of the connecting sleeve (801a). A second cooling liquid hole (801g) is provided on the valve core (801) near the outer end of the second cooling liquid groove (801e). The liquid inlet (802a) and the liquid outlet (802b) are both provided on the side of the valve core seat (802) away from the connecting sleeve (801a). The valve core seat (802) is connected to a return liquid pipe (17) via the liquid outlet (802b). The return liquid pipe (17) is connected to the liquid inlet pipe (901) at one end away from the valve core seat (802).

5. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 4, characterized in that: A liquid pump (19) is connected between the liquid return pipe (17) and the liquid inlet pipe (901).

6. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 1 or 2, characterized in that: The deceleration power generation module comprises at least one deceleration power generation unit (1), wherein the deceleration power generation unit (1) comprises a deceleration power generation housing (104), a first connecting plate (104b) is fixed to the upper portion of the inner side of the deceleration power generation housing (104), a vertical plate (104a) is fixed to the lower side of the first connecting plate (104b), and intermediate plates (104g) are respectively fixed to both sides of the vertical plate (104a), and the side of the intermediate plate (104g) away from the vertical plate (104a) is fixed to the inner side of the deceleration power generation housing (104), and the intermediate plates (104g) are fixed to the inner side of the deceleration power generation housing (104). A first accommodating cavity is formed between the upper side of the plate (104g), the vertical plate (104a), the lower side of the first connecting plate (104b) and the inner side of the deceleration power generation housing (104); a fan blade (105) is rotatably connected to the deceleration power generation housing (104) at the first accommodating cavity; a connecting groove (111a) is provided on the fan blade (105); a first piezoelectric ceramic (112) connected to the deceleration power generation housing (104) is connected to the fan blade (105) at the connecting groove (111a); The center is set to deviate from the rotation center of the first deviated fan blade (105), a plurality of sliding grooves are arranged on the periphery of the first piezoelectric ceramic (112), the first piezoelectric ceramic (112) is slidably connected to a sliding block (115) through the sliding groove, the sliding block (115) is connected to a first piezoelectric spring (113) at one end relative to the first piezoelectric ceramic (112), the first piezoelectric spring (113) is connected to the first piezoelectric ceramic (112) at a side away from the sliding block (115), and the sliding block (115) is away from the first piezoelectric spring ( A rotating slider (114) is connected to one side of the vertical plate (104a), and the fan blade (105) rotates along the outer side of the rotating slider (114). At least one air inlet (104d) is respectively provided on the first connecting plates (104b) on both sides of the vertical plate (104a). An air outlet deceleration hole (104f) is provided at the bottom of the deceleration power generation housing (104) on both sides of the vertical plate (104a). The first accommodating cavity can be connected to the air outlet deceleration hole (104f). The first piezoelectric ceramic (112) is electrically connected to the filter (3).

7. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 6, characterized in that: At least one first air inlet valve (107) is connected to the intermediate plates (104g) on both sides of the vertical plate (104a), and a deceleration seat (103) having a deceleration chamber is fixed on the lower side of the intermediate plate (104g) at the first air inlet valve (107). A piston (108) is slidably connected in the deceleration seat (103), and a second piezoelectric spring (109) is connected to the lower side of the piston (108). The lower side of the second piezoelectric spring (109) is connected to a second piezoelectric ceramic (110) connected to the deceleration seat (103). An exhaust hole (103a) connected to the air outlet deceleration hole (104f) is opened on the deceleration seat (103) above the second piezoelectric ceramic (110), and the second piezoelectric ceramic (110) is electrically connected to the filter (3).

8. The rapid cooling device for the mouth of a hydrogen storage bottle according to claim 6, characterized in that: A second connecting plate (104h) is fixed to both sides of the vertical plate (104a), the upper side of the second connecting plate (104h) is arranged away from the vertical plate (104a) and fixed to the lower side of the corresponding intermediate plate (104g), and a second accommodating cavity is formed between the lower side of the intermediate plate (104g), the upper side of the second connecting plate (104h), the vertical plate (104a) and the inner side of the deceleration power generation shell (104), and an air outlet baffle (102) is hingedly connected to the vertical plate (104a) at the upper part of the second accommodating cavity, and a third piezoelectric spring (102) is connected to the lower side of the air outlet baffle (102). 01), the side of the third piezoelectric spring (101) away from the air outlet baffle (102) is connected to a third piezoelectric ceramic (116) connected to the vertical plate (104a), a second air outlet (104e) is opened on the second connecting plate (104h), and at least one second air intake valve (106) for controlling air intake is also connected to the intermediate plates (104g) on both sides of the vertical plate (104a). When the second air intake valve (106) is opened, gas enters the second accommodating cavity through the second air intake valve (106), and the third piezoelectric ceramic (116) is electrically connected to the filter (3).

9. The hydrogen storage bottle mouth rapid cooling device according to claim 1 or 2, characterized in that: The electric signal output by the deceleration power generation module is filtered by a filter (3) and then transmitted to a rectifier (4). The current rectified by the rectifier (4) is transmitted to a storage battery (5) for storage.

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