Sodium borohydride hydrolysis hydrogen production device and method thereof

Abstract

The invention discloses a sodium borohydride hydrolysis hydrogen production device and method, and relates to the technical field of hydrolysis hydrogen production device.The sodium borohydride hydrolysis hydrogen production device comprises a reaction kettle body, a feeding mechanism is arranged in the reaction kettle body, a cleaning mechanism is arranged above the reaction kettle body, and the feeding mechanism can convey a catalyst into the reaction kettle body; the cleaning mechanism comprises a filtering unit, the filtering unit is arranged above the reaction kettle body, the filtering unit can filter crystal substances in the reaction kettle body, the cleaning mechanism comprises a scraping unit, the scraping unit is arranged in an inner cavity of the reaction kettle body, and the scraping unit can scrape down the crystal substances condensed on the inner wall of the reaction kettle body. According to the sodium borohydride hydrolysis hydrogen production device and the sodium borohydride hydrolysis hydrogen production method, by arranging the feeding mechanism, the filtering unit and the scraping unit, the problem that when equipment is used, sodium metaborate generated by chemical reaction in the reaction kettle body can reduce the reaction efficiency can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production devices by hydrolysis, and in particular to a sodium borohydride hydrogen production device by hydrolysis and a method thereof. Background Art

[0002] A hydrolysis hydrogen production device is a device that releases hydrogen through a chemical reaction by reacting hydrogen-containing compounds (such as sodium borohydride, ammonia borane, metal hydrides, etc.) with water. Its core function is to convert the chemical energy stored in the compounds into hydrogen energy, and it is suitable for scenarios such as industrial hydrogen production. Summary of the Invention

[0003] At present, when the existing hydrogen production device is in use, sodium borohydride will produce sodium metaborate crystals during the reaction process. These crystals will condense on the inner wall of the reaction device, which may hinder the flow of the reaction liquid, resulting in local uneven concentration or decreased mixing efficiency, and indirectly affecting the reaction rate.

[0004] In view of the above problems existing in the existing sodium borohydride hydrolysis hydrogen production device, the present invention is proposed.

[0005] Therefore, the present invention aims to provide a sodium borohydride hydrolysis hydrogen production device, which aims to effectively increase the hydrogen production efficiency of the hydrogen production device.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a sodium borohydride hydrolysis hydrogen production device, comprising a reactor body, a feeding mechanism is provided inside the reactor body, and a cleaning mechanism is provided above the reactor body; The delivery mechanism can deliver the catalyst into the interior of the reactor body; The cleaning mechanism includes a filtering unit, which is arranged above the reactor body and can filter the crystals inside the reactor body; The cleaning mechanism includes a scraping unit, which is arranged in the inner cavity of the reactor body and can scrape off crystals condensed on the inner wall of the reactor body.

[0007] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device of the present invention, the feeding mechanism includes two first circular cylinders, each of which is arranged in the inner cavity of the reactor body, and the outer surface of each of the first circular cylinders is provided with two discharge ports, the inner wall of each of the first circular cylinders is rotatably connected to a long shaft, the outer surface of each of the long shafts is fixedly connected to a rotating block, the outer surface of each of the long shafts is fixedly connected to a connecting plate, the outer surface of each of the connecting plates is fixedly connected to a first gear, the inner wall of the reactor body is fixedly connected to a second gear, and the outer surface of each of the first gears is meshed with the outer surface of the second gear.

[0008] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device of the present invention, the top of each first gear is fixedly connected to a second circular cylinder, the inner wall of each second circular cylinder is threadedly connected to a first sealing threaded block, and the outer surface of the reactor body is fixedly connected to a guide pipe.

[0009] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device of the present invention, an air pump is provided in the inner cavity of the reactor body, the input end of the air pump is fixedly connected to an exhaust pipe, the output end of the air pump is fixedly connected to an outlet pipe, and both ends of the outlet pipe are fixedly connected to the outer surface of the second circular cylinder.

[0010] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device described in the present invention, the filtering unit comprises a long cylinder, the outer surface of the long cylinder is rotatably connected to the inner wall of the reactor body, the outer surface of the long cylinder is fixedly connected to a first circular plate and a second circular plate respectively, the outer surface of the first circular plate and the outer surface of the second circular plate are both rotatably connected to the inner wall of the reactor body, the upper surface of the first circular plate is fixedly connected to the bottom surface of the air pump, the outer surface of each of the first circular cylinders is fixedly connected to the inner walls of the first circular plate and the second circular plate, the outer surface of the long cylinder is fixedly connected to three groups of extension cylinders, the number of extension cylinders in each group is two, the inner wall of each extension cylinder is fixedly connected to a circular ring, each of the circular rings is fixedly connected to a fixed rubber pad on a side close to the long cylinder, the outer surface of each fixed rubber pad is fixedly connected to a folded rubber pad, the outer surface of each folded rubber pad is in contact with a side of the circular ring close to the long cylinder, and three filter screens are provided inside the long cylinder.

[0011] As a preferred solution of the sodium borohydride hydrolysis hydrogen production device of the present invention, the inner wall of the long cylinder is threadedly connected to a connecting cylinder, and the outer surface of each filter is fixedly connected to the inner wall of the connecting cylinder.

[0012] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device of the present invention, a third gear is fixedly connected to the outer surface of the long cylinder, a fixing seat is fixedly connected to the upper surface of the reactor body, a stepping motor is fixedly connected to the inner wall of the fixing seat, a fourth gear is fixedly connected to the output end of the stepping motor, and the outer surface of the fourth gear is meshed with the outer surface of the third gear.

[0013] As a preferred embodiment of the sodium borohydride hydrolysis hydrogen production device of the present invention, the upper surface of the reactor body is fixedly connected to a gear pump, the input end of the gear pump is fixedly connected to a first circular tube, the output end of the gear pump is fixedly connected to a second circular tube, the inner wall of the long cylinder is fixedly connected to a sealed bearing, the outer surface of the second circular tube is fixedly connected to the inner cavity of the sealed bearing, the upper surface of the reactor body is respectively provided with two connecting ports and a feed port, the upper surface of the first circular plate is fixedly connected to the feed pipe, and the inner wall of the feed pipe is threadedly connected to a second sealing thread block.

[0014] As a preferred solution of the sodium borohydride hydrolysis hydrogen production device described in the present invention, the scraping unit includes two groups of fixed blocks, each group of fixed blocks has two fixed blocks, the outer surface of each fixed block is fixedly connected to the outer surface of the extension tube, the inner wall of each fixed block is rotatably connected to a rotating shaft, the outer surface of each rotating shaft is fixedly connected to a connecting block, each two connecting blocks are fixedly connected to a scraper on the side away from the long tube, the outer surface of each scraper is in contact with the inner wall of the reactor body, the outer surface of each rotating shaft is rotatably connected to the inner wall of the first circular plate, the top of each rotating shaft is fixedly connected to a limiting gear, the upper surface of the first circular plate is fixedly connected to two rectangular frames and two force springs, respectively, the top of each force spring is fixedly connected to a clamping block, and the outer surface of each clamping block is clamped to the outer surface of the limiting gear.

[0015] A method for producing hydrogen by hydrolyzing sodium borohydride comprises the following steps: S1: The liquid to be reacted is transported from the inside of the feed pipe to the inside of the reactor body, and then the second sealing threaded block is threadedly connected to the inner wall of the feed pipe, and then the stepper motor is controlled to operate. The operation of the stepper motor will drive the long cylinder to rotate, thereby driving the first circular plate and the second circular plate fixed on the surface of the long cylinder to rotate. When the first circular plate and the second circular plate are rotating, they will synchronously drive the two first circular cylinders to rotate, and when the first circular cylinder rotates, it will rotate around the center of the long cylinder. Therefore, when the first circular cylinder and the long shaft are rotating, the first gear connected to the long shaft will always be engaged with the surface of the second gear, so the first gear will rotate around its own center while rotating around the center of the long cylinder. Similarly, the long shaft also rotates around its own center, further driving the rotating block on the surface of the long shaft to rotate. When the rotating block rotates to no longer below the cavity, the solid catalyst in the internal space of the first circular cylinder will fall down; S2: With the addition of solid catalyst, sodium metaborate is gradually generated inside the reactor body. At this time, it is necessary to control the operation of the gear pump. When the gear pump is running, the external gas will be drawn into the gear pump through the first circular tube, and transported to the interior of the long cylinder through the second circular tube, thereby increasing the pressure inside the long cylinder and prompting the reaction liquid inside the long cylinder to enter the reactor body through the drainage hole opened at the bottom of the long cylinder. After the reaction liquid inside the long cylinder is discharged, the gear pump is controlled to run in the reverse direction. The reverse operation of the gear pump will draw out the gas inside the long tube through the second circular tube and discharge it to the outside through the first circular tube. At this time, the pressure inside the long cylinder will decrease, and the reaction liquid inside the reactor body will enter the interior of the long cylinder again through the through hole opened on the surface of the extension cylinder. At this time, sodium metaborate will enter the long cylinder together with the reaction liquid and will be filtered by the filter in the long cylinder. In this way, the purpose of treating sodium metaborate in the reaction liquid can be achieved without stopping the operation of the equipment. S3: In the initial stage of operation, since no sodium metaborate is produced inside the reactor body, the scraper does not need to clean the inner wall of the reactor body in the initial stage of the reaction. Therefore, when the solid catalyst is first added, it is necessary to drive the stepper motor and the long cylinder to rotate so that the two limit gears rotate to the two connecting ports. Then the staff needs to manually press the two blocks so that the force springs fixed on the bottom of the two blocks will be compressed downward, and then manually drive the limit gear to rotate ninety degrees. When the limit gear rotates, it will synchronously drive the rotating shaft. Rotation can drive the connecting block and scraper fixed on the outer surface of the rotating shaft to rotate ninety degrees, so that the scraper does not contact the inner wall of the reactor body. When the equipment runs for a period of time and sodium metaborate is produced inside the reactor body, the above operation can be repeated to control the scraper to reset and process the sodium metaborate on the inner wall of the reactor body to prevent a large amount of sodium metaborate from adhering to the inner wall of the reactor body. The sodium metaborate scraped off will also be sucked into the interior of the long cylinder by the filtration unit for filtration treatment to prevent the sodium metaborate from continuing to drift inside the reaction liquid.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a delivery mechanism, which can be used to deliver the solid catalyst to the interior of the reactor body, and can evenly mix the solid catalyst in the solution inside the reactor body, further increasing the chemical reaction efficiency inside the reactor body.

[0017] 2. The present invention provides a filtration unit, which can be used to absorb the sodium metaborate produced by the chemical reaction inside the reactor body into the interior of the long cylinder, and effectively filter it through the filter screen inside the long cylinder, thereby achieving the goal of filtering the sodium metaborate produced by the chemical reaction during the chemical reaction of the equipment without affecting the normal operation of the equipment.

[0018] 3. The present invention provides a scraping unit, which can be used to scrape off the sodium metaborate adsorbed on the inner wall of the reactor body. By providing a feeding mechanism, a filtering unit and a scraping unit, it can effectively avoid the problem that the sodium metaborate produced by the chemical reaction inside the reactor body reduces the reaction efficiency when the equipment is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 Schematic diagram of the stepping motor structure of the present invention; Figure 3 Schematic diagram of the structure of the gear pump of the present invention; Figure 4 This is a schematic structural diagram of the first circular cylinder of the present invention; Figure 5 This is a schematic structural diagram of the second circular cylinder of the present invention; Figure 6 It is a structural schematic diagram of the long tube of the present invention; Figure 7 Schematic diagram of the structure of the limiting gear of the present invention; Figure 8 Schematic diagram of the structure of the filter screen of the present invention; Figure 9 This is a schematic structural diagram of the foldable rubber pad of the present invention; Figure 10 It is a structural schematic diagram of the connecting tube of the present invention.

[0020] In the figure: 1. Reactor body; 2. Feeding mechanism; 201. Second circular cylinder; 202. First gear; 203. Connecting plate; 204. Second gear; 205. First circular cylinder; 206. Feeding port; 207. First sealing thread block; 208. Air pump; 209. Exhaust pipe; 210. Exhaust pipe; 211. Long shaft; 212. Rotating block; 213. Second sealing thread block; 214. Feeding pipe; 3. Cleaning mechanism; 31. Filter unit; 3101. Fourth gear; 3102. Fixing seat; 3103. Gear pump; 3104. First circular tube; 3105. Connecting port; 3106. Second circular tube ; 3107, the third gear; 3108, the long cylinder; 3109, the feeding port; 3110, the guide tube; 3111, the stepping motor; 3112, the extension cylinder; 3113, the second circular plate; 3114, the sealed bearing; 3115, the first circular plate; 3116, the filter screen; 3117, the fixed rubber pad; 3118, the folding rubber pad; 3119, the circular ring; 3120, the connecting cylinder; 32, the scraping unit; 3201, the limiting gear; 3202, the scraper; 3203, the force spring; 3204, the rectangular frame; 3205, the block; 3206, the rotating shaft; 3207, the fixed block; 3208, the connecting block. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0024] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0025] Example 1: Please refer to Figures 1-6The present invention provides a technical solution: a sodium borohydride hydrolysis hydrogen production device, which makes corresponding improvements to the technical problems mentioned in the background technology, including a reactor body 1, a feeding mechanism 2 is provided inside the reactor body 1, and a cleaning mechanism 3 is provided above the reactor body 1; The feeding mechanism 2 can transport the catalyst into the interior of the reactor body 1 .

[0026] As a further limitation of the feeding mechanism 2 of the present invention, the feeding mechanism 2 includes two first circular cylinders 205, each of which is arranged in the inner cavity of the reactor body 1, and the outer surface of each first circular cylinder 205 is provided with two discharge ports 206, the inner wall of each first circular cylinder 205 is rotatably connected to a long shaft 211, the outer surface of each long shaft 211 is fixedly connected to a rotating block 212, the outer surface of each long shaft 211 is fixedly connected to a connecting plate 203, the outer surface of each connecting plate 203 is fixedly connected to a first gear 202, the inner wall of the reactor body 1 is fixedly connected to a second gear 204, and the outer surface of each first gear 202 is meshed with the outer surface of the second gear 204. By setting up the feeding mechanism 2, the solid catalyst can be transported to the interior of the reactor body 1 by using the feeding mechanism 2, and the solid catalyst can be evenly mixed in the solution inside the reactor body 1, thereby further increasing the chemical reaction efficiency inside the reactor body 1.

[0027] See also Figure 2-Figure 5 The top of each first gear 202 is fixedly connected to the second circular cylinder 201, and the inner wall of each second circular cylinder 201 is threadedly connected to the first sealing thread block 207. The outer surface of the reactor body 1 is fixedly connected to the guide pipe 3110. By providing the second circular cylinder 201 and the first sealing thread block 207, the first sealing thread block 207 can be used to seal the space above the first circular cylinder 205 and the second circular cylinder 201, thereby smoothly increasing the pressure in the internal space of the first circular cylinder 205.

[0028] See also Figure 2 and Figure 3 The inner cavity of the reactor body 1 is provided with an air pump 208, the input end of the air pump 208 is fixedly connected to the exhaust pipe 210, and the output end of the air pump 208 is fixedly connected to the outlet pipe 209. Both ends of the outlet pipe 209 are fixedly connected to the outer surface of the second circular cylinder 201. By providing the air pump 208, the air pump 208 can be used to extract external gas into the interior of the outlet pipe 209 through the exhaust pipe 210, thereby increasing the pressure inside the first circular cylinder 205.

[0029] The specific implementation of this embodiment is as follows: when the device is needed, the liquid to be reacted is transported from the inside of the feed pipe 214 to the inside of the reactor body 1, and then the second sealing threaded block 213 is threadedly connected to the inner wall of the feed pipe 214 to prevent the gas in the reactor body 1 from drifting to the outside through the feed pipe 214, and then the metal solid catalyst to be chemically reacted is transported to the inside of the two first circular cylinders 205. It should be understood here that the interior of each first circular cylinder 205 is divided into two spaces of different sizes, but the amount of solid catalyst transported in each space is roughly the same, and there is a baffle at the bottom of each space, and each baffle is provided with a lower The solid catalyst is limited by the rotating block 212, and then the two first sealing threaded blocks 207 are threadedly connected to the inside of the first circular cylinder 205. Then the stepper motor 3111 is controlled to operate. The operation of the stepper motor 3111 will drive the long cylinder 3108 to rotate, thereby driving the first circular plate 3115 and the second circular plate 3113 fixed on the surface of the long cylinder 3108 to rotate. When the first circular plate 3115 and the second circular plate 3113 are rotating, they will synchronously drive the two first circular cylinders 205 to rotate, and when the first circular cylinder 205 rotates, it will rotate around the center of the long cylinder 3108, so the first circular cylinder 20 5 and the long shaft 211 are rotating, the first gear 202 connected to the long shaft 211 will always be in mesh with the surface of the second gear 204, so the first gear 202 will rotate around its own center while rotating around the center of the long cylinder 3108, and similarly, the long shaft 211 will also rotate around its own center while rotating around the center of the long cylinder 3108. When the long shaft 211 rotates, it will drive the rotating block 212 on the surface of the long shaft 211 to rotate. When the rotating block 212 rotates to the point where it is no longer under the cavity, the solid catalyst in the internal space of the first circular cylinder 205 will fall down. As the long shaft 211 continues to rotate, the rotating block 212 will rotate 180 degrees and return to its original position. position, and push the fallen solid catalyst into the reaction liquid in the reactor body 1 for reaction. It should be understood here that when the rotating block 212 is rotating, the reaction liquid in the reactor body 1 may enter the space inside the first circular cylinder 205. Therefore, when the equipment is running, it is also necessary to control the operation of the air pump 208. The exhaust pipe 210 in the air pump 208 can be used to transport the gas to the interior of the first circular cylinder 205 through the exhaust pipe 209, so that the air pressure inside the first circular cylinder 205 is increased. In this way, the reaction liquid inside the reactor body 1 will not enter the interior of the first circular cylinder 205. At the same time, the purpose of directly adding the solid catalyst into the reaction liquid in batches can be achieved.

[0030] Example 2: Please refer to Figure 1-Figure 3 and Figures 6-10The present invention provides a technical solution: a sodium borohydride hydrolysis hydrogen production device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The cleaning mechanism 3 includes a filtering unit 31. The filtering unit 31 is arranged above the reactor body 1. The filtering unit 31 can filter the crystals inside the reactor body 1.

[0031] As a further limitation of the cleaning mechanism 3 of the present invention, the filter unit 31 includes a long cylinder 3108, the outer surface of the long cylinder 3108 is rotatably connected to the inner wall of the reactor body 1, and the outer surface of the long cylinder 3108 is fixedly connected to the first circular plate 3115 and the second circular plate 3113, respectively. The outer surface of the first circular plate 3115 and the outer surface of the second circular plate 3113 are both rotatably connected to the inner wall of the reactor body 1, the upper surface of the first circular plate 3115 is fixedly connected to the bottom surface of the air pump 208, the outer surface of each first circular cylinder 205 is fixedly connected to the inner wall of the first circular plate 3115 and the second circular plate 3113, the outer surface of the long cylinder 3108 is fixedly connected to the outer wall of the three groups of extension cylinders 3112, the number of each group of extension cylinders 3112 is two, and the inner wall of each extension cylinder 3112 is fixedly connected to the inner wall of the three groups of extension cylinders 3112. shaped ring 3119, each circular ring 3119 is fixedly connected to a fixed rubber pad 3117 on one side close to the long cylinder 3108, and each fixed rubber pad 3117 is fixedly connected to a folding rubber pad 3118 on the outer surface, and each folding rubber pad 3118 is in contact with the side of the circular ring 3119 close to the long cylinder 3108. Three filter screens 3116 are arranged inside the long cylinder 3108. By setting up the filter unit 31, the filter unit 31 can be used to suck the sodium metaborate produced by the chemical reaction inside the reactor body 1 into the interior of the long cylinder 3108, and effectively filter it through the filter screen 3116 inside the long cylinder 3108, so that the sodium metaborate produced by the chemical reaction can be filtered during the chemical reaction of the equipment without affecting the normal operation of the equipment.

[0032] See also Figure 10 The inner wall of the long cylinder 3108 is threadedly connected to the connecting cylinder 3120, and the outer surface of each filter 3116 is fixedly connected to the inner wall of the connecting cylinder 3120. By providing the connecting cylinder 3120 and the filter 3116, the filter 3116 can filter the sodium metaborate produced by the reaction, and the threaded connection relationship between the connecting cylinder 3120 and the long cylinder 3108 allows the connecting cylinder 3120 to be removed from the inside of the long cylinder 3108 with the filter 3116, making it convenient to clean the filter 3116.

[0033] See also Figure 1-Figure 3The outer surface of the long cylinder 3108 is fixedly connected to the third gear 3107, the upper surface of the reactor body 1 is fixedly connected to the fixing seat 3102, the inner wall of the fixing seat 3102 is fixedly connected to the stepping motor 3111, and the output end of the stepping motor 3111 is fixedly connected to the fourth gear 3101. The outer surface of the fourth gear 3101 is engaged with the outer surface of the third gear 3107. By providing the stepping motor 3111, the power generated when the stepping motor 3111 is running can drive the fourth gear 3101 to rotate. By coordinating the meshing relationship between the fourth gear 3101 and the third gear 3107, the power generated when the stepping motor 3111 is running can be transmitted to the long cylinder 3108, driving the long cylinder 3108 to rotate.

[0034] See also Figure 3 The upper surface of the reactor body 1 is fixedly connected to a gear pump 3103, the input end of the gear pump 3103 is fixedly connected to a first circular tube 3104, the output end of the gear pump 3103 is fixedly connected to a second circular tube 3106, the inner wall of the long cylinder 3108 is fixedly connected to a sealed bearing 3114, the outer surface of the second circular tube 3106 is fixedly connected to the inner cavity of the sealed bearing 3114, the upper surface of the reactor body 1 is respectively provided with two connecting ports 3105 and a feeding port 3109, the upper surface of the first circular plate 3115 is fixedly connected to the feeding pipe 214, the inner wall of the feeding pipe 214 is threadedly connected to the second sealing thread block 213, by providing the gear pump 3103, the gear pump 3103 can be used to transport gas to the interior of the long cylinder 3108, and the gears inside the gear pump 3103 can run forward or reverse, so when the gear pump 3103 runs in reverse, the gas inside the long cylinder 3108 will be extracted.

[0035] The specific implementation of this embodiment is as follows: when the reaction liquid is poured into the reactor body 1, the reaction liquid will enter the interior of the circular cylinder through the through hole opened on the surface of the extension cylinder 3112, and as the reaction liquid continues to enter the interior of the reactor body 1, the folding rubber pad 3118 inside the extension cylinder 3112 will fold towards the direction of the long cylinder 3108 under the action of water pressure, so that the reaction liquid can enter the interior of the long cylinder 3108. At this time, there is no sodium metaborate in the reaction liquid. As the solid catalyst is added, the interior of the reactor body 1 is filled with sodium metaborate. Sodium metaborate is gradually generated. At this time, it is necessary to control the operation of the gear pump 3103. When the gear pump 3103 is running, the external gas will be sucked into the gear pump 3103 through the first circular tube 3104, and transported to the interior of the long cylinder 3108 through the second circular tube 3106, increasing the pressure inside the long cylinder 3108, so that the reaction liquid inside the long cylinder 3108 can enter the interior of the reactor body 1 through the drainage hole opened at the bottom of the long cylinder 3108. It should be understood here that when a large amount of gas enters the interior of the long cylinder 3108, , the gas will push the folded rubber pad 3118 to stick tightly to the surface of the circular ring 3119. At this time, the extension tube 3112 and the long tube 3108 are not interconnected, so the gas entering the long tube 3108 can smoothly increase the internal pressure of the long tube 3108, instead of entering the interior of the reactor body 1 through the through hole opened on the surface of the extension tube 3112. When the reaction liquid in the long tube 3108 is discharged, the gear pump 3103 is controlled to run in the reverse direction. The reverse operation of the gear pump 3103 will push the long tube 3108 through the second circular tube 3106. The gas inside the tube is extracted and discharged to the outside through the first circular tube 3104. At this time, the pressure inside the long cylinder 3108 will decrease. At this time, the reaction liquid inside the reactor body 1 will enter the interior of the long cylinder 3108 again through the through hole opened on the surface of the extension cylinder 3112. At this time, sodium metaborate will enter the long cylinder 3108 together with the reaction liquid and will be filtered by the filter 3116 in the long cylinder 3108. In this way, the purpose of treating sodium metaborate in the reaction liquid can be achieved without stopping the operation of the equipment.

[0036] Example 3: Please refer to Figure 7 The present invention provides a technical solution: a sodium borohydride hydrolysis hydrogen production device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The cleaning mechanism 3 includes a scraping unit 32, which is arranged in the inner cavity of the reactor body 1. The scraping unit 32 can scrape off the crystals condensed on the inner wall of the reactor body 1.

[0037] As a further limitation of the cleaning mechanism 3 of the present invention, the scraping unit 32 includes two groups of fixed blocks 3207, each group of fixed blocks 3207 has two blocks, the outer surface of each fixed block 3207 is fixedly connected to the outer surface of the extension tube 3112, the inner wall of each fixed block 3207 is rotatably connected to a rotating shaft 3206, the outer surface of each rotating shaft 3206 is fixedly connected to a connecting block 3208, and each two connecting blocks 3208 are fixedly connected to a scraper 3202 on one side away from the long tube 3108, the outer surface of each scraper 3202 is in contact with the inner wall of the reactor body 1, the outer surface of each rotating shaft 3206 is rotatably connected to the inner wall of the first circular plate 3115, and each rotating shaft 3206 is rotatably connected to the inner wall of the first circular plate 3115. The top of the moving shaft 3206 is fixedly connected to the limiting gear 3201, and the upper surface of the first circular plate 3115 is fixedly connected to two rectangular frames 3204 and two force springs 3203. The top of each force spring 3203 is fixedly connected to a clamping block 3205, and the outer surface of each clamping block 3205 is clamped to the outer surface of the limiting gear 3201. By setting up a scraping unit 32, the scraping unit 32 can be used to scrape off the sodium metaborate adsorbed on the inner wall of the reactor body 1. By setting up the feeding mechanism 2, the filtering unit 31 and the scraping unit 32, the problem that the sodium metaborate produced by the chemical reaction inside the reactor body 1 will reduce the reaction efficiency when the equipment is in use can be effectively avoided.

[0038] The specific implementation method of this embodiment is as follows: at the initial stage of operation of the equipment, since no sodium metaborate is produced inside the reactor body 1, the scraper 3202 does not need to clean the inner wall of the reactor body 1 at the initial stage of the reaction. Therefore, when the solid catalyst is first added, it is necessary to drive the stepper motor 3111 and the long cylinder 3108 to rotate so that the two limit gears 3201 rotate to the two connecting ports 3105. Then the staff needs to manually press the two blocks 3205 so that the force springs 3203 fixed on the bottom surfaces of the two blocks 3205 will be compressed downward. At this time, the blocks 3205 will not limit the limit gear 3201. Therefore, the limit gear 3201 can be manually driven to rotate so that the limit gear 3201 rotates ninety degrees. When the limit gear 3201 rotates, it will synchronously drive the rotating shaft 3206 to rotate, thereby driving the connecting port 3206 fixed on the outer surface of the rotating shaft 3206. The connecting block 3208 and the scraper 3202 are rotated ninety degrees so that the scraper 3202 does not contact the inner wall of the reactor body 1. It should be understood here that when the limit gear 3201 rotates ninety degrees, the squeezing of the block 3205 is stopped, and the block 3205 will be re-engaged in the tooth marks on the surface of the limit gear 3201 under the action of the force spring 3203. When the equipment has been running for a period of time and sodium metaborate is produced inside the reactor body 1, in order to avoid a large amount of sodium metaborate being adsorbed on the inner wall of the reactor body 1, the above operation can be repeated, and the scraper 3202 can be controlled to reset to process the sodium metaborate on the inner wall of the reactor body 1 to prevent a large amount of sodium metaborate from adhering to the inner wall of the reactor body 1. The scraped sodium metaborate will also be sucked into the interior of the long cylinder 3108 by the filter unit 31 for filtration treatment to prevent the sodium metaborate from continuing to drift inside the reaction liquid.

[0039] A method for using a sodium borohydride hydrolysis hydrogen production device comprises the following steps: S1: The liquid to be reacted is transported from the inside of the feed pipe 214 to the inside of the reactor body 1, and then the second sealing threaded block 213 is threadedly connected to the inner wall of the feed pipe 214, and then the stepper motor 3111 is controlled to operate. The operation of the stepper motor 3111 will drive the long cylinder 3108 to rotate, thereby driving the first circular plate 3115 and the second circular plate 3113 fixed on the surface of the long cylinder 3108 to rotate. When the first circular plate 3115 and the second circular plate 3113 are rotating, they will synchronously drive the two first circular cylinders 205 to rotate, and when the first circular cylinder 205 rotates, The first cylinder 205 and the long shaft 211 rotate around the center of the cylinder 3108. Therefore, when the first cylinder 205 and the long shaft 211 rotate, the first gear 202 connected to the long shaft 211 will always be in mesh with the surface of the second gear 204. Therefore, the first gear 202 rotates around its own center while rotating around the center of the cylinder 3108. Similarly, the long shaft 211 also rotates around its own center, further driving the rotating block 212 on the surface of the long shaft 211 to rotate. When the rotating block 212 rotates to a point where it is no longer below the cavity, the solid catalyst in the internal space of the first cylinder 205 will fall downward. S2: With the addition of solid catalyst, sodium metaborate is gradually generated inside the reactor body 1. At this time, it is necessary to control the operation of the gear pump 3103. When the gear pump 3103 is running, it will draw the external gas into the gear pump 3103 through the first circular tube 3104, and transport it to the inside of the long cylinder 3108 through the second circular tube 3106, thereby increasing the pressure inside the long cylinder 3108 and allowing the reaction liquid inside the long cylinder 3108 to enter the reactor body 1 through the drainage hole at the bottom of the long cylinder 3108. When the reaction liquid inside the long cylinder 3108 is discharged, the gear pump 3103 is controlled to operate in the reverse direction. The gear pump 3103 runs in reverse to extract the gas inside the long tube through the second circular tube 3106 and discharge it to the outside through the first circular tube 3104. At this time, the pressure inside the long tube 3108 will decrease, and the reaction liquid inside the reactor body 1 will enter the interior of the long tube 3108 again through the through hole opened on the surface of the extension tube 3112. At this time, the sodium metaborate will enter the long tube 3108 together with the reaction liquid and will be filtered by the filter 3116 in the long tube 3108. In this way, the purpose of treating the sodium metaborate in the reaction liquid can be achieved without stopping the operation of the equipment. S3: At the initial stage of operation of the equipment, since no sodium metaborate is produced inside the reactor body 1, the scraper 3202 does not need to clean the inner wall of the reactor body 1 at the initial stage of the reaction. Therefore, when the solid catalyst is first added, it is necessary to drive the stepper motor 3111 and the long cylinder 3108 to rotate so that the two limit gears 3201 rotate to the two connecting ports 3105. Then the staff needs to manually press the two blocks 3205 so that the force springs 3203 fixed on the bottom surfaces of the two blocks 3205 will be compressed downward, and then manually drive the limit gear 3201 to rotate so that the limit gear 3201 rotates ninety degrees. When the limit gear 3201 rotates, The step drives the rotating shaft 3206 to rotate, thereby driving the connecting block 3208 and the scraper 3202 fixed on the outer surface of the rotating shaft 3206 to rotate ninety degrees, so that the scraper 3202 does not contact the inner wall of the reactor body 1. When the equipment has been running for a period of time and sodium metaborate is produced inside the reactor body 1, the above operation can be repeated to control the scraper 3202 to reset and the sodium metaborate on the inner wall of the reactor body 1 can be processed to prevent a large amount of sodium metaborate from adhering to the inner wall of the reactor body 1. The sodium metaborate scraped off will also be sucked into the interior of the long cylinder 3108 by the filtration unit 31 for filtration treatment to prevent the sodium metaborate from continuing to drift inside the reaction liquid.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sodium borohydride hydrolysis hydrogen production device, characterized in that: It comprises a reactor body (1), characterized in that: a feeding mechanism (2) is provided inside the reactor body (1), and a cleaning mechanism (3) is provided above the reactor body (1); The delivery mechanism (2) is capable of delivering the catalyst into the interior of the reactor body (1); The cleaning mechanism (3) comprises a filtering unit (31), the filtering unit (31) being arranged above the reactor body (1), and the filtering unit (31) being capable of filtering crystals inside the reactor body (1); The cleaning mechanism (3) comprises a scraping unit (32), which is arranged in the inner cavity of the reactor body (1). The scraping unit (32) can scrape off crystals condensed on the inner wall of the reactor body (1).

2. The sodium borohydride hydrolysis hydrogen production device according to claim 1, characterized in that: The feeding mechanism (2) comprises two first circular cylinders (205), each of which is arranged in the inner cavity of the reactor body (1), and the outer surface of each of which is provided with two discharge ports (206), the inner wall of each of which is rotatably connected to a long shaft (211), the outer surface of each of which is fixedly connected to a rotating block (212), the outer surface of each of which is fixedly connected to a connecting plate (203), the outer surface of each of which is fixedly connected to a first gear (202), the inner wall of the reactor body (1) is fixedly connected to a second gear (204), and the outer surface of each of which is meshed with the outer surface of the second gear (204).

3. The sodium borohydride hydrolysis hydrogen production device according to claim 2, characterized in that: The top end of each first gear (202) is fixedly connected to a second circular cylinder (201), the inner wall of each second circular cylinder (201) is threadedly connected to a first sealing threaded block (207), and the outer surface of the reactor body (1) is fixedly connected to a guide pipe (3110).

4. The sodium borohydride hydrolysis hydrogen production device according to claim 3, characterized in that: The inner cavity of the reactor body (1) is provided with an air pump (208), the input end of the air pump (208) is fixedly connected to an air extraction pipe (210), the output end of the air pump (208) is fixedly connected to an air outlet pipe (209), and both ends of the air outlet pipe (209) are fixedly connected to the outer surface of the second circular cylinder (201).

5. The sodium borohydride hydrolysis hydrogen production device according to claim 1, characterized in that: The filtering unit (31) includes a long cylinder (3108), the outer surface of the long cylinder (3108) is rotatably connected to the inner wall of the reactor body (1), the outer surface of the long cylinder (3108) is fixedly connected to a first circular plate (3115) and a second circular plate (3113), the outer surface of the first circular plate (3115) and the outer surface of the second circular plate (3113) are both rotatably connected to the inner wall of the reactor body (1), the upper surface of the first circular plate (3115) is fixedly connected to the bottom surface of the air pump (208), the outer surface of each of the first circular cylinders (205) is fixedly connected to the inner walls of the first circular plate (3115) and the second circular plate (3113), and the long cylinder The outer surface of (3108) is fixedly connected to three groups of extension tubes (3112), and the number of extension tubes (3112) in each group is two. The inner wall of each extension tube (3112) is fixedly connected to a circular ring (3119), and each circular ring (3119) is fixedly connected to a fixed rubber pad (3117) on a side close to the long tube (3108). The outer surface of each fixed rubber pad (3117) is fixedly connected to a folding rubber pad (3118), and the outer surface of each folding rubber pad (3118) is in contact with a side of the circular ring (3119) close to the long tube (3108). Three filter screens (3116) are arranged inside the long tube (3108).

6. The sodium borohydride hydrolysis hydrogen production device according to claim 5, characterized in that: The inner wall of the long tube (3108) is threadedly connected to a connecting tube (3120), and the outer surface of each filter (3116) is fixedly connected to the inner wall of the connecting tube (3120).

7. The sodium borohydride hydrolysis hydrogen production device according to claim 6, characterized in that: The outer surface of the long tube (3108) is fixedly connected to a third gear (3107), the upper surface of the reactor body (1) is fixedly connected to a fixing seat (3102), the inner wall of the fixing seat (3102) is fixedly connected to a stepping motor (3111), the output end of the stepping motor (3111) is fixedly connected to a fourth gear (3101), and the outer surface of the fourth gear (3101) is meshed with the outer surface of the third gear (3107).

8. The sodium borohydride hydrolysis hydrogen production device according to claim 7, characterized in that: The upper surface of the reactor body (1) is fixedly connected to a gear pump (3103), the input end of the gear pump (3103) is fixedly connected to a first circular tube (3104), the output end of the gear pump (3103) is fixedly connected to a second circular tube (3106), the inner wall of the long cylinder (3108) is fixedly connected to a sealing bearing (3114), the outer surface of the second circular tube (3106) is fixedly connected to the inner cavity of the sealing bearing (3114), the upper surface of the reactor body (1) is respectively provided with two connecting ports (3105) and a feeding port (3109), the upper surface of the first circular plate (3115) is fixedly connected to a feeding tube (214), and the inner wall of the feeding tube (214) is threadedly connected to a second sealing thread block (213).

9. The sodium borohydride hydrolysis hydrogen production device according to claim 8, characterized in that: The scraping unit (32) includes two groups of fixed blocks (3207), each group of fixed blocks (3207) has two fixed blocks (3207), the outer surface of each fixed block (3207) is fixedly connected to the outer surface of the extension tube (3112), the inner wall of each fixed block (3207) is rotatably connected to a rotating shaft (3206), the outer surface of each rotating shaft (3206) is fixedly connected to a connecting block (3208), and the side of each of the two connecting blocks (3208) away from the long tube (3108) is fixedly connected to a scraper (3202), and the outer surface of each scraper (3202) is fixedly connected to the outer surface of the extension tube (3112). The surfaces are in contact with the inner wall of the reactor body (1), the outer surface of each rotating shaft (3206) is rotatably connected to the inner wall of the first circular plate (3115), the top of each rotating shaft (3206) is fixedly connected to the limiting gear (3201), the upper surface of the first circular plate (3115) is respectively fixedly connected to two rectangular frames (3204) and two force springs (3203), the top of each force spring (3203) is fixedly connected to a clamping block (3205), and the outer surface of each clamping block (3205) is clamped to the outer surface of the limiting gear (3201).

10. A method for producing hydrogen by hydrolysis of sodium borohydride, using a sodium borohydride hydrolysis hydrogen production device according to any one of claims 1 to 9, characterized in that: Specifically include the following steps: S1: The liquid to be reacted is transported from the inside of the feed pipe (214) to the inside of the reactor body (1), and then the second sealing threaded block (213) is threadedly connected to the inner wall of the feed pipe (214), and then the stepper motor (3111) is controlled to operate. The operation of the stepper motor (3111) drives the long cylinder (3108) to rotate, thereby driving the first circular plate (3115) and the second circular plate (3113) fixed on the surface of the long cylinder (3108) to rotate. When the first circular plate (3115) and the second circular plate (3113) rotate, they will synchronously drive the two first circular cylinders (205) to rotate, and when the first circular cylinder (205) rotates, It rotates around the center of the long cylinder (3108). Therefore, when the first circular cylinder (205) and the long shaft (211) rotate, the first gear (202) connected to the long shaft (211) will always be in mesh with the surface of the second gear (204). Therefore, the first gear (202) will rotate around its own center while rotating around the center of the long cylinder (3108). Similarly, the long shaft (211) will also rotate around its own center, further driving the rotating block (212) on the surface of the long shaft (211) to rotate. When the rotating block (212) rotates to the point where it is no longer below the cavity, the solid catalyst in the internal space of the first circular cylinder (205) will fall downward. S2: As the solid catalyst is added, sodium metaborate is gradually generated inside the reactor body (1). At this time, it is necessary to control the operation of the gear pump (3103). When the gear pump (3103) is in operation, it draws the external gas into the gear pump (3103) through the first circular tube (3104) and transports it to the inside of the long cylinder (3108) through the second circular tube (3106), thereby increasing the pressure inside the long cylinder (3108) and allowing the reaction liquid inside the long cylinder (3108) to enter the reactor body (1) through the drainage hole opened at the bottom of the long cylinder (3108). When the reaction liquid inside the long cylinder (3108) is discharged, the gear pump (3103) is controlled. In reverse operation, the gear pump (3103) will extract the gas inside the long tube through the second circular tube (3106) and discharge it to the outside through the first circular tube (3104). At this time, the pressure inside the long tube (3108) will decrease. At this time, the reaction liquid inside the reactor body (1) will enter the interior of the long tube (3108) again through the through hole opened on the surface of the extension tube (3112). At this time, sodium metaborate will enter the long tube (3108) along with the reaction liquid and will be filtered by the filter (3116) in the long tube (3108). In this way, the purpose of treating sodium metaborate in the reaction liquid can be achieved without stopping the operation of the equipment. S3: At the initial stage of operation of the equipment, since no sodium metaborate is produced inside the reactor body (1), the scraper (3202) does not need to clean the inner wall of the reactor body (1) at the initial stage of the reaction. Therefore, when the solid catalyst is first added, it is necessary to drive the stepper motor (3111) and the long cylinder (3108) to rotate so that the two limit gears (3201) rotate to the two connecting ports (3105). Then the staff needs to manually press the two blocks (3205) so that the force springs (3203) fixed on the bottom of the two blocks (3205) will be compressed downward, and then manually drive the limit gear (3201) to rotate so that the limit gear (3201) rotates ninety degrees. When the limit gear (3201) rotates, The rotating shaft (3206) is driven to rotate synchronously, thereby driving the connecting block (3208) and the scraper (3202) fixed on the outer surface of the rotating shaft (3206) to rotate ninety degrees, so that the scraper (3202) does not contact the inner wall of the reactor body (1). After the equipment has been running for a period of time and sodium metaborate is generated inside the reactor body (1), the above operation can be repeated, and the scraper (3202) can be controlled to reset to process the sodium metaborate on the inner wall of the reactor body (1), thereby preventing a large amount of sodium metaborate from adhering to the inner wall of the reactor body (1). The scraped sodium metaborate will also be sucked into the interior of the long cylinder (3108) by the filtering unit (31) for filtering treatment, thereby preventing the sodium metaborate from continuously drifting inside the reaction liquid.

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