Hydrogen fuel cell heat and power cogeneration system and method thereof

Abstract

The invention belongs to the technical field of fuel cells, particularly relates to a hydrogen fuel cell combined heat and power supply system and a method thereof, and provides the following scheme aiming at the problem that an existing hydrogen fuel cell combined heat and power supply system cannot effectively clean scale in a water storage tank: the hydrogen fuel cell combined heat and power supply system comprises a heat exchange water storage assembly box, one side of the heat exchange water storage assembly box is connected with a box door through a hinge, an observation window is formed in the box door, a door handle is fixedly connected to the box door, a heat dissipation grid is arranged on the side, away from the box door, of the heat exchange water storage assembly box, and a narrow opening is formed in the side, away from the box door, of the heat exchange water storage assembly box. According to the hydrogen fuel cell combined heat and power system and the method thereof disclosed by the invention, scale formed by heat-containing water in the water storage tank which is used for a long time can be effectively cleaned, so that the cleanness of the water in the water storage tank is effectively ensured, and the quality of the water in the hydrogen fuel cell combined heat and power system is ensured; and high-efficiency operation of heat supply and power supply of the system is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and particularly relates to a hydrogen fuel cell combined heat and power supply system and a method thereof. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. The working principle is as follows: hydrogen and oxygen are respectively supplied to the anode and the cathode. After hydrogen diffuses outward through the anode and reacts with the electrolyte, electrons are released and reach the cathode through an external load. After the electrons reach the cathode plate, they recombine with oxygen atoms and hydrogen ions to form water. Since the oxygen supplied to the cathode plate can be obtained from the air, as long as hydrogen is continuously supplied to the anode plate, air is supplied to the cathode plate, and water is taken away in time, electrical energy can be continuously provided.

[0003] In the existing hydrogen fuel cell combined heat and power supply system, due to the long-term participation of the water storage tank in the heat exchange and heat supply cycle, scale will form on the inner wall of the water storage tank, resulting in poor water quality in the water storage tank, thereby affecting the effective progress of the electrolysis reaction in the system and the user experience of hot water. Summary of the Invention

[0004] The present invention discloses a hydrogen fuel cell combined heat and power supply system and a method thereof, aiming to solve the technical problem that the existing hydrogen fuel cell combined heat and power supply system in the background art cannot effectively clean the scale in the water storage tank.

[0005] A hydrogen fuel cell combined heat and power supply system proposed by the present invention includes a heat exchange and water storage assembly box. One side of the heat exchange and water storage assembly box is connected with a box door through a hinge. An observation window is opened on the box door, and a door handle is fixedly connected to the box door. A heat dissipation grille is opened on the side of the heat exchange and water storage assembly box away from the box door, and a narrow opening is opened on the side of the heat exchange and water storage assembly box away from the box door. A narrow door is connected to the narrow opening through a hinge. A water storage tank is arranged in the heat exchange and water storage assembly box. A top cover is fixedly connected to the upper side of the water storage tank. A crushing and scale cleaning module is arranged on the heat exchange and water storage assembly box. A plate heat exchanger is fixedly connected to the inner wall of the side of the heat exchange and water storage assembly box away from the box door. The plate heat exchanger is communicated with the water storage tank, and a positioning and tipping module is arranged in the heat exchange and water storage assembly box;

[0006] The crushing and scale cleaning module includes a crushing tooth ring;

[0007] The positioning and tipping module includes a fixed seat.

[0008] By setting up a heat exchange and water storage assembly tank, a water storage tank, a crushing and descaling module, a positioning and anti - tipping module, and a plate heat exchanger, the device can effectively clean the scale formed by the heated water in the water storage tank during long - term use by using the crushing and descaling module. Thus, the cleanliness of the water in the water storage tank is effectively guaranteed, the quality of the water in the hydrogen fuel cell combined heat and power supply system is ensured, and the efficient operation of the system for heat supply and power generation is ensured.

[0009] In a preferred solution, a fixed seat is arranged on the bottom inner wall of the heat exchange and water storage assembly tank. Two symmetric connecting seats are movably connected to the outside of the bearing platform. The bottoms of the connecting seats are fixedly connected to the bottom inner wall of the heat exchange and water storage assembly tank. The upper side of the bearing platform is fixedly connected to the bottom of the water storage tank. A supporting frame is fixedly connected to the upper side of the bearing platform. The side of the supporting frame opposite to the water storage tank is in contact. And two symmetric movable shafts are fixedly connected to the outside of the bearing platform; Slide rails are slidably connected to the outside of both of the two movable shafts. Fixed plates are fixedly connected to the opposite sides of the two slide rails away from each other. The fixed plates are fixedly connected to the opposite sides of the inner wall of the heat exchange and water storage assembly tank. And a waterproof cover one is fixedly connected to the bottom inner wall of the water storage tank. A round hole is opened on the waterproof cover one. A lead screw is movably connected in the round hole; A motor one is fixedly connected to the inner wall of the waterproof cover one. The output end of the motor one is connected to the bottom of the lead screw through a coupling. A fixing frame is arranged on the outside of the lead screw. A circular seat is fixedly connected to the upper side of the fixing frame. And a plurality of grooves are evenly distributed in a circumferential manner on the inner wall of the water storage tank. The outside of the circular seat is slidably connected to the inner wall of the groove. A rotating ring is movably connected to the inner wall of the circular seat; The upper side of the rotating ring is fixedly connected to the bottom of the crushing tooth ring. Three round holes are evenly distributed in a circumferential manner on the bottom of the circular seat. Synchronous motors are fixedly connected in the round holes. The output ends of the synchronous motors are all connected to gears through couplings. And an external tooth ring is fixedly connected to the bottom of the rotating ring. All three gears are meshed with the external tooth ring; Three convex seats are fixedly connected to the inner wall of the rotating ring at equal circumferential intervals. Round rods are movably connected to the convex seats. Convex platforms are movably connected to the outside of the round rods. The upper sides of the convex platforms are fixedly connected to the receiving plates. And torsion springs are wound around the outside of the round rods. One end of each torsion spring is fixedly connected to the outside of the convex seat, and the other end is fixedly connected to the outside of the convex platform. Three mounting plates are fixedly connected to the inner wall of the rotating ring at equal circumferential intervals; All three mounting plates are located below the receiving plates. Two symmetric plate seats are fixedly connected to the upper sides of the mounting plates. A winding roller is movably connected between the plate seats. A waterproof cover two is fixedly connected to the outside of one of the plate seats. Electric motors two are fixedly connected to the inner walls of the waterproof cover two. The output ends of the electric motors two are connected to one side of the same - side winding roller through couplings. And steel wires are wound around the outside of the winding rollers. Notches are opened on the outside of all three receiving plates. Short rods are fixedly connected in the notches. The ends of the steel wires away from the winding rollers are fixedly connected to the outside of the same - side short rods.

[0010] By providing a crushing and descaling module, the crushing and descaling module can quickly and conveniently clean the water scale by using the crushing gear ring and the bearing plate, thereby ensuring that the capacity of the water storage tank is not affected by the water scale, guaranteeing the water storage capacity of the water storage tank. The automatically operating crushing gear ring effectively reduces the workload of personnel in cleaning the water scale; by using the reversible arc track and the bearing platform, the water storage tank can move its top to the outside of the heat exchange and water storage assembly box when cleaning the water scale, thus avoiding the water in the water scale flowing into the heat exchange and water storage assembly box during the cleaning of the water scale and affecting the operation of the equipment in the heat exchange and water storage assembly box.

[0011] In a preferred solution, one side of the fixed seat opposite to the bearing platform is fixedly connected. The bottom of the fixed seat is fixedly connected with a bolt. The outside of the bolt is inserted with a stabilizing seat. The bottom of the stabilizing seat is fixedly connected with the bottom inner wall of the heat exchange and water storage assembly box. Three circumferentially equidistantly distributed cutting grooves are opened on the upper side of the stabilizing seat, and locking rods are slidably connected in the cutting grooves. An annular groove is opened on the bolt, and the outside of the locking rods is clamped with the inner wall of the annular groove; the upper sides of the three locking rods are fixedly connected with short shafts. A rotating frame is slidably connected to the outside of the bolt. One side of the rotating frame opposite to the stabilizing seat is movably connected. Three circumferentially equidistantly distributed arc grooves are opened on the rotating frame. The inner walls of the arc grooves are slidably connected with the outside of the short shafts. And a coil spring is fixedly connected to the inner wall of the rotating frame. One end of the coil spring far away from the rotating frame is fixedly connected with the outside of the stabilizing seat.

[0012] By providing a positioning and anti - tipping module, the positioning and anti - tipping module can fix the water storage tank connected to the bearing platform on the bottom inner wall of the heat exchange and water storage assembly box by using the locking rod and the annular groove, thereby avoiding the situation that the rotatable bearing platform is toppled by the shaking water storage tank during transportation and relocation, causing equipment damage, and improving safety.

[0013] A method for combined heat and power supply of a hydrogen fuel cell uses a hydrogen fuel cell combined heat and power supply system as described above, and includes the following steps:

[0014] Step 1: The hydrogen fuel cell directly converts the chemical energy of hydrogen and oxygen into electrical energy through the reverse reaction of electrolyzing water. Hydrogen is oxidized to hydrogen ions and releases electrons under the action of the anode catalyst, forming an electric current and supplying it to the electrical equipment. Oxygen combines with hydrogen ions and electrons transmitted by the external circuit at the cathode to generate water and release heat energy. The heat energy is transferred to the water in the water storage tank through a plate heat exchanger. Over time, water scale will form on the inner wall of the water storage tank, and the crushing and descaling module is used for cleaning.

[0015] Step 2: When it is necessary to shift or transport the heat exchange and water storage assembly box, the positioning and anti - tipping module is used to fix the water storage tank in the heat exchange and water storage assembly box to avoid the water storage tank tipping over during the process of movement or transportation.

[0016] As can be seen from the above, a hydrogen fuel cell combined heat and power supply system provided by the present invention can effectively clean the scale formed by the heated water in the water storage tank during long-term use, thereby effectively ensuring the cleanliness of the water in the water storage tank, guaranteeing the quality of the water in the hydrogen fuel cell combined heat and power supply system, and ensuring the efficient operation of the system for heat supply and power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0018] Figure 2 FIG. is a schematic sectional structure diagram of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0019] Figure 3 FIG. is a schematic diagram of the structure of a crushing and scale cleaning module of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0020] Figure 4 FIG. is a schematic diagram of the structure of an annular seat of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0021] Figure 5 FIG. is a schematic diagram of the structure of a rotating ring of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0022] Figure 6 FIG. is a schematic diagram of the structure of a torsion spring of a hydrogen fuel cell combined heat and power supply system proposed by the present invention;

[0023] Figure 7 FIG. is a schematic diagram of the structure of a positioning and tipping prevention module of a hydrogen fuel cell combined heat and power supply system proposed by the present invention.

[0024] In the figure: 1. Heat exchange and water storage assembly box; 2. Box door; 3. Observation window; 4. Door handle; 5. Heat dissipation grille; 6. Water storage tank; 7. Top cover; 8. Crushing and scale cleaning module; 801. Bearing platform; 802. Support frame; 803. Moving shaft; 804. Arc track; 805. Fixed plate; 806. Connecting seat; 807. Waterproof cover 1; 808. Motor 1; 809. Lead screw; 810. Fixed frame; 811. Annular seat; 812. Rotating ring; 813. Crushing tooth ring; 814. Outer tooth ring; 815. Synchronous motor; 816. Gear; 817. Bearing plate; 818. Torsion spring; 819. Mounting plate; 820. Winding roller; 821. Waterproof cover 2; 822. Motor 2; 823. Steel wire rope; 824. Short rod; 9. Positioning and anti-tipping module; 901. Fixed seat; 902. Plug pin; 903. Stable seat; 904. Cutting groove; 905. Locking rod; 906. Annular groove; 907. Rotating frame; 908. Arc groove; 909. Short shaft; 910. Coil spring; 10. Narrow door; 11. Plate heat exchanger. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] A hydrogen fuel cell cogeneration system disclosed in the present invention is mainly used in scenarios where the existing hydrogen fuel cell cogeneration system cannot effectively clean scale in a water storage tank.

[0027] Reference Figures 1 - 7 A hydrogen fuel cell cogeneration system comprises a heat exchange and water storage assembly box 1, one side of the heat exchange and water storage assembly box 1 is connected with a box door 2 by a hinge, the box door 2 is provided with an observation window 3, and the box door 2 is connected with a door handle 4 by bolts, a heat dissipation grille 5 is provided on the side of the heat exchange and water storage assembly box 1 away from the box door 2, and a narrow opening is provided on the side of the heat exchange and water storage assembly box 1 away from the box door 2, and a narrow door 10 is connected in the narrow opening by a hinge, a water storage tank 6 is arranged in the heat exchange and water storage assembly box 1, a top cover 7 is connected to the upper side of the water storage tank 6 by bolts, a crushing and cleaning module 8 is arranged on the heat exchange and water storage assembly box 1, a plate heat exchanger 11 is connected to the inner wall of the side of the heat exchange and water storage assembly box 1 away from the box door 2 by bolts, the plate heat exchanger 11 is connected with the water storage tank 6, and a positioning and falling module 9 is arranged in the heat exchange and water storage assembly box 1;

[0028] The crushing and cleaning module 8 includes a crushing tooth ring 813;

[0029] The positioning and laying-down module 9 includes a fixing seat 901 .

[0030] Specifically, the hydrogen fuel cell directly converts the chemical energy of hydrogen and oxygen into electrical energy through the reverse reaction of water electrolysis. Hydrogen is oxidized into hydrogen ions and releases electrons under the action of the anode catalyst to form an electric current and supply it to the electrical equipment. Oxygen combines with hydrogen ions and electrons transferred by the external circuit at the cathode to generate water and release heat energy. The heat is transferred to the water in the water storage tank 6 through the plate heat exchanger 11. After a long time of use, scale will form on the inner wall of the water storage tank 6, which is cleaned by the crushing and descaling module 8. When the heat exchange water storage assembly box 1 needs to be moved or transported, the positioning and anti-falling module 9 is used to fix the water storage tank 6 in the heat exchange water storage assembly box 1 to prevent the water storage tank 6 from overturning during movement or transportation. The device can effectively clean the scale formed by the water containing heat in the water storage tank 6 that is in long-term use by using the crushing and descaling module 8, thereby effectively ensuring the cleanliness of the water in the water storage tank 6, ensuring the quality of water in the hydrogen fuel cell cogeneration system, and ensuring the efficient operation of the system's heating and power supply.

[0031] Reference Figure 3 , Figure 4 , Figure 5and Figure 6, in a preferred embodiment, a fixed seat 901 is provided on the bottom inner wall of the heat exchange water storage assembly box 1. Two symmetric connecting seats 806 are rotatably connected to the outside of the bearing platform 801 through bearings. The bottoms of the connecting seats 806 are bolted to the bottom inner wall of the heat exchange water storage assembly box 1. The upper side of the bearing platform 801 is bolted to the bottom of the water storage tank 6. A supporting frame 802 is bolted to the upper side of the bearing platform 801. The side of the supporting frame 802 opposite to the water storage tank 6 is in contact. And two symmetric movable shafts 803 are bolted to the outside of the bearing platform 801; Arc-shaped rails 804 are slidably connected to the outside of both movable shafts 803. Fixing plates 805 are bolted to the opposite sides of the two arc-shaped rails 804 facing away from each other. The fixing plates 805 are bolted to the opposite sides of the inner wall of the heat exchange water storage assembly box 1. And a waterproof cover 807 is bolted to the bottom inner wall of the water storage tank 6. A circular hole is opened in the waterproof cover 807. A lead screw 809 is rotatably connected to the circular hole through a bearing; A motor 808 is bolted to the inner wall of the waterproof cover 807. The output end of the motor 808 is connected to the bottom of the lead screw 809 through a coupling. A fixing frame 810 is arranged on the outside of the lead screw 809. A circular seat 811 is bolted to the upper side of the fixing frame 810. And a plurality of grooves are opened in the inner wall of the water storage tank 6 at equal intervals in a circumferential direction. The outside of the circular seat 811 is slidably connected to the inner wall of the groove. A rotating ring 812 is rotatably connected to the inner wall of the circular seat 811 through a bearing; The upper side of the rotating ring 812 is bolted to the bottom of the crushing tooth ring 813. Three circular holes are opened in the bottom of the circular seat 811 at equal intervals in a circumferential direction. Synchronous motors 815 are bolted to the circular holes. The output ends of the synchronous motors 815 are connected to gears 816 through couplings. And an external tooth ring 814 is bolted to the bottom of the rotating ring 812. All three gears 816 are engaged with the external tooth ring 814; Three convex seats are bolted to the inner wall of the rotating ring 812 at equal intervals in a circumferential direction. Round rods are rotatably connected to the convex seats through bearings. Convex platforms are rotatably connected to the outside of the round rods through bearings. A receiving plate 817 is bolted to the upper side of the convex platforms. And torsion springs 818 are wound around the outside of the round rods. One end of each torsion spring 818 is bolted to the outside of the convex seat, and the other end is bolted to the outside of the convex platform. Three mounting plates 819 are bolted to the inner wall of the rotating ring 812 at equal intervals in a circumferential direction;The three mounting plates 819 are all located below the receiving plate 817. Two symmetrical seat blocks are bolted to the upper side of the mounting plate 819. A wire winding roller 820 is rotatably connected between the seat blocks through bearings. A second waterproof cover 821 is bolted to the outside of one of the seat blocks. A second motor 822 is bolted to the inner wall of the second waterproof cover 821. The output end of the second motor 822 is connected to one side of the wire winding roller 820 on the same side through a coupling. Steel wire ropes 823 are wound around the outside of the wire winding rollers 820. Notches are formed in the outside of the three receiving plates 817. Short rods 824 are bolted in the notches. One end of the steel wire rope 823 away from the wire winding roller 820 is bolted to the outside of the short rod 824 on the same side.;

[0032] Specifically, when cleaning the scale on the inner wall of the water storage tank 6, pull the supporting frame 802 to tilt the water storage tank 6 on the bearing platform 801 driven by the supporting frame 802 towards the door 2 until the movable shaft 803 slides to the other end of the arc track 804. Open the top cover 7 and start the first motor 808. The first motor 808 drives the lead screw 809 to rotate, so that the fixed frame 810 pushes the annular seat 811 upward. Start the second motor 822. The second motor 822 drives the wire winding roller 820 to rotate, so that the wire winding roller 820 releases the steel wire rope 823. Under the torsion of the torsion spring 818, the receiving plate 817 flips to be parallel to the broken tooth ring 813. Start the synchronous motor 815. The synchronous motor 815 drives the outer tooth ring 814 meshing with the gear 816 to rotate, so that the broken tooth ring 813 rotates while moving upward, thereby squeezing and breaking the scale on the inner wall of the water storage tank 6. The broken scale falls on the receiving plate 817. After the annular seat 811 moves to the top of the water storage tank 6, the scale on the receiving plate 817 is cleaned to the outside of the heat exchange water storage assembly box 1.

[0033] In a specific application scenario, the crushing and descaling module 8 is mainly applicable to the crushing and descaling link in the crushing and descaling process, that is, the crushing and descaling module 8 can quickly and conveniently clean the scale by using the broken tooth ring 813 and the receiving plate 817, so as to ensure that the capacity of the water storage tank 6 is not affected by the scale, ensure the water storage capacity of the water storage tank 6, and the automatically operating broken tooth ring 813 effectively reduces the workload of personnel cleaning the scale; the rotatable arc track 804 and the bearing platform 801 enable the water storage tank 6 to move its top to the outside of the heat exchange water storage assembly box 1 when cleaning the scale, thereby avoiding the water in the scale flowing into the heat exchange water storage assembly box 1 during the scale cleaning process and affecting the operation of the equipment in the heat exchange water storage assembly box 1.

[0034] Refer to Figure 7, in a preferred embodiment, one side of the fixed seat 901 opposite to the bearing platform 801 is connected by bolts. A bolt is connected to the bottom of the fixed seat 901 with a bolt to an insertion pin 902. The outside of the insertion pin 902 is inserted with a stabilizing seat 903. The bottom of the stabilizing seat 903 is connected to the inner wall of the bottom of the heat exchange water storage assembly tank 1 by bolts. Three circumferentially equally spaced cutting grooves 904 are provided on the upper side of the stabilizing seat 903, and locking rods 905 are slidably connected in the cutting grooves 904. An annular groove 906 is provided on the insertion pin 902, and the outside of the locking rods 905 are clamped to the inner wall of the annular groove 906; The upper sides of the three locking rods 905 are all connected by bolts to a short shaft 909. A rotating frame 907 is slidably connected to the outside of the insertion pin 902. The side of the rotating frame 907 opposite to the stabilizing seat 903 is rotatably connected by a bearing. Three circumferentially equally spaced arc-shaped grooves 908 are provided on the rotating frame 907, and the inner walls of the arc-shaped grooves 908 are slidably connected to the outside of the short shaft 909. A coil spring 910 is connected to the inner wall of the rotating frame 907 by bolts, and one end of the coil spring 910 away from the rotating frame 907 is connected to the outside of the stabilizing seat 903 by bolts.

[0035] Specifically, when it is necessary to move or transport the heat exchange water storage assembly tank 1, rotate the rotating frame 907 against the torsion of the coil spring 910, so that the arc-shaped groove 908 pushes the locking rod 905 connected to the short shaft 909 to slide outwards, so that the insertion pin 902 on the fixed seat 901 can be inserted into the stabilizing seat 903. Release the rotating frame 907. Under the torsion of the coil spring 910, the locking rod 905 resets, so that one end of it enters the annular groove 906, so that the locking rod 905 locks the insertion pin 902, so as to fix the water storage tank 6 on the bearing platform 801 in the heat exchange water storage assembly tank 1.

[0036] In a specific application scenario, the positioning and anti-toppling module 9 is mainly applicable to the positioning and anti-toppling link in the positioning and anti-toppling process, that is, the positioning and anti-toppling module 9 can use the locking rod 905 and the annular groove 906 to fix the water storage tank 6 connected to the bearing platform 801 on the inner wall of the bottom of the heat exchange water storage assembly tank 1, thus avoiding the situation that the water storage tank 6 that is shaken during transportation and relocation will drive the rotatable bearing platform 801 to topple over and cause equipment damage, improving safety.

[0037] A hydrogen fuel cell combined heat and power supply method, using a hydrogen fuel cell combined heat and power supply system as described above, includes the following steps:

[0038] Step 1: The hydrogen fuel cell directly converts the chemical energy of hydrogen and oxygen into electrical energy through the reverse reaction of electrolyzing water. Hydrogen is oxidized to hydrogen ions under the action of the anode catalyst and releases electrons to form an electric current, which is supplied to the electrical equipment. Oxygen combines with hydrogen ions and electrons transmitted through the external circuit at the cathode to generate water and release heat energy. The heat is transferred to the water in the water storage tank 6 through the plate heat exchanger 11. Under long-term use, scale will form on the inner wall of the water storage tank 6, and the crushing and descaling module 8 is used for cleaning (when cleaning the scale on the inner wall of the water storage tank 6, pull the support frame 802 to make the support frame 802 drive the water storage tank 6 on the bearing platform 801 to tilt towards the direction of the box door 2 until the movable shaft 803 slides to the other end of the arc track 804, open the top cover 7, start the first motor 808, the first motor 808 drives the lead screw 809 to rotate, so that the fixed frame 810 pushes the annular seat 811 upward, start the second motor 822, the second motor 822 drives the wire winding roller 820 to rotate, so that the wire winding roller 820 releases the steel wire rope 823, under the torsion of the torsion spring 818, the receiving plate 817 flips to be parallel to the crushing tooth ring 813, start the synchronous motor 815, the synchronous motor 815 drives the external tooth ring 814 meshing with the gear 816 to rotate, so that the crushing tooth ring 813 keeps rotating during the upward movement, thereby squeezing and crushing the scale on the inner wall of the water storage tank 6. The crushed scale falls on the receiving plate 817. After the annular seat 811 moves to the top of the water storage tank 6, the scale on the receiving plate 817 is cleaned to the outside of the heat exchange and water storage assembly box 1);

[0039] Step 2: When it is necessary to shift or transport the heat exchange and water storage assembly box 1, the positioning and anti - tipping module 9 is used to fix the water storage tank 6 in the heat exchange and water storage assembly box 1 to prevent the water storage tank 6 from tipping over during the movement or transportation process (when it is necessary to move or transport the heat exchange and water storage assembly box 1, rotate the rotating frame 907 against the torsion of the coil spring 910, so that the arc groove 908 pushes the locking rod 905 connected to the short shaft 909 to slide outwards, so that the pin 902 on the fixed seat 901 can be inserted into the stable seat 903. Release the rotating frame 907, and under the torsion of the coil spring 910, the locking rod 905 resets, so that one end of it enters the annular groove 906, and the locking rod 905 locks the pin 902, thereby fixing the water storage tank 6 on the bearing platform 801 in the heat exchange and water storage assembly box 1).

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A hydrogen fuel cell combined heat and power supply system, comprising a heat exchange and water storage assembly tank (1), characterized in that, One side of the heat exchange and water storage assembly tank (1) is hinged with a tank door (2). An observation window (3) is provided on the tank door (2), and a door handle (4) is fixedly connected to the tank door (2). A heat dissipation grille (5) is provided on the side of the heat exchange and water storage assembly tank (1) away from the tank door (2), and a narrow opening is provided on the side of the heat exchange and water storage assembly tank (1) away from the tank door (2). A narrow door (10) is hinged in the narrow opening. A water storage tank (6) is arranged in the heat exchange and water storage assembly tank (1). A top cover (7) is fixedly connected to the upper side of the water storage tank (6). A crushing and descaling module (8) is arranged on the heat exchange and water storage assembly tank (1). A plate heat exchanger (11) is fixedly connected to the inner wall on the side of the heat exchange and water storage assembly tank (1) away from the tank door (2). The plate heat exchanger (11) is communicated with the water storage tank (6), and a positioning and tilting module (9) is arranged in the heat exchange and water storage assembly tank (1); The crushing and descaling module (8) includes a crushing tooth ring (813); The positioning and tilting module (9) includes a fixed seat (901).

2. The hydrogen fuel cell combined heat and power supply system according to claim 1, wherein A fixed seat (901) is arranged on the bottom inner wall of the heat exchange and water storage assembly tank (1). Two symmetrical connecting seats (806) are movably connected to the outside of the bearing platform (801). The bottoms of the connecting seats (806) are fixedly connected to the bottom inner wall of the heat exchange and water storage assembly tank (1). The upper side of the bearing platform (801) is fixedly connected to the bottom of the water storage tank (6). A support frame (802) is fixedly connected to the upper side of the bearing platform (801). The side of the support frame (802) opposite to the water storage tank (6) is in contact. Two symmetrical movable shafts (803) are fixedly connected to the outside of the bearing platform (801).

3. The hydrogen fuel cell combined heat and power supply system according to claim 2, characterized in that, Arc-shaped rails (804) are slidably connected to the outside of the two movable shafts (803). Fixed plates (805) are fixedly connected to the opposite sides of the two arc-shaped rails (804) facing away from each other. The fixed plates (805) are fixedly connected to the opposite sides of the inner wall of the heat exchange and water storage assembly tank (1). A waterproof cover one (807) is fixedly connected to the bottom inner wall of the water storage tank (6). A round hole is provided on the waterproof cover one (807). A lead screw (809) is movably connected in the round hole.

4. A hydrogen fuel cell combined heat and power supply system according to claim 3, characterized in that, A motor one (808) is fixedly connected to the inner wall of the waterproof cover one (807). The output end of the motor one (808) is connected to the bottom of the lead screw (809) through a coupling. A fixed frame (810) is arranged on the outside of the lead screw (809). A ring-shaped seat (811) is fixedly connected to the upper side of the fixed frame (810). A plurality of grooves are equally distributed in a circumferential manner on the inner wall of the water storage tank (6). The outside of the ring-shaped seat (811) is slidably connected to the inner wall of the groove. A rotating ring (812) is movably connected to the inner wall of the ring-shaped seat (811).

5. A hydrogen fuel cell combined heat and power supply system according to claim 4, characterized in that, The upper side of the rotating ring (812) is fixedly connected to the bottom of the crushing tooth ring (813). Three circular holes are equidistantly distributed in a circumferential manner at the bottom of the annular seat (811). Synchronous motors (815) are fixedly connected inside the circular holes. The output ends of the synchronous motors (815) are all connected to gears (816) through couplings. An external tooth ring (814) is fixedly connected to the bottom of the rotating ring (812). The three gears (816) are all meshed with the external tooth ring (814).

6. The hydrogen fuel cell combined heat and power supply system according to claim 5, characterized in that, Three convex seats are fixedly connected to the inner wall of the rotating ring (812) at equal circumferential intervals. Round rods are movably connected to the convex seats. Convex platforms are movably connected to the outer parts of the round rods. Bearing plates (817) are fixedly connected to the upper sides of the convex platforms. Torsion springs (818) are wound around the outer parts of the round rods. One end of each torsion spring (818) is fixedly connected to the outside of the corresponding convex seat, and the other end is fixedly connected to the outside of the corresponding convex platform. Three mounting plates (819) are fixedly connected to the inner wall of the rotating ring (812) at equal circumferential intervals.

7. The combined heat and power system of a hydrogen fuel cell according to claim 6, wherein, The three mounting plates (819) are all located below the bearing plates (817). Two symmetric plate seats are fixedly connected to the upper side of each mounting plate (819). A wire winding roller (820) is movably connected between the plate seats. A second waterproof cover (821) is fixedly connected to the outside of one of the plate seats. A second motor (822) is fixedly connected to the inner wall of the second waterproof cover (821). The output end of each second motor (822) is connected to one side of the wire winding roller (820) on the same side through a coupling. Steel wires (823) are wound around the outer parts of the wire winding rollers (820). Notches are formed in the outer parts of the three bearing plates (817). Short rods (824) are fixedly connected inside the notches. One end of each steel wire (823) far away from the wire winding roller (820) is fixedly connected to the outside of the short rod (824) on the same side.

8. A hydrogen fuel cell combined heat and power system according to claim 1, wherein, The fixed seat (901) is fixedly connected to the side of the bearing platform (801) opposite thereto. A plug pin (902) is fixedly connected to the bottom of the fixed seat (901). A stabilizing seat (903) is inserted onto the outside of the plug pin (902). The bottom of the stabilizing seat (903) is fixedly connected to the bottom inner wall of the heat exchange water storage assembly tank (1). Three cutting grooves (904) are equidistantly distributed in a circumferential manner on the upper side of the stabilizing seat (903). Locking rods (905) are slidably connected inside the cutting grooves (904). An annular groove (906) is formed in the plug pin (902). The outer parts of the locking rods (905) are all clamped with the inner wall of the annular groove (906).

9. A hydrogen fuel cell combined heat and power supply system according to claim 8, characterized in that, Short shafts (909) are fixedly connected to the upper sides of the three locking rods (905). A rotating frame (907) is slidably connected to the outside of the plug pin (902). The rotating frame (907) is movably connected to the side of the stabilizing seat (903) opposite thereto. Three arc-shaped grooves (908) are equidistantly distributed in a circumferential manner on the rotating frame (907). The inner walls of the arc-shaped grooves (908) are all slidably connected to the outside of the short shafts (909). A coil spring (910) is fixedly connected to the inner wall of the rotating frame (907). One end of the coil spring (910) far away from the rotating frame (907) is fixedly connected to the outside of the stabilizing seat (903).

10. A method for combined heat and power supply of a hydrogen fuel cell, using a combined heat and power supply system of a hydrogen fuel cell as described in claim 9, characterized in that, Comprising the following steps: Step 1: The hydrogen fuel cell directly converts the chemical energy of hydrogen and oxygen into electrical energy through the reverse reaction of electrolyzing water. Hydrogen is oxidized to hydrogen ions under the action of the anode catalyst and releases electrons, forming an electric current and supplying it to the electrical equipment. Oxygen combines with hydrogen ions and electrons transmitted through the external circuit at the cathode to generate water and release heat energy. The heat energy is transferred to the water in the water storage tank (6) through the plate heat exchanger (11). Over time, scale will form on the inner wall of the water storage tank (6), and the crushing and descaling module (8) is used for cleaning; Step 2: When it is necessary to shift or transport the heat exchange and water storage assembly box (1), the positioning and anti-tipping module (9) is used to fix the water storage tank (6) in the heat exchange and water storage assembly box (1) to prevent the water storage tank (6) from tipping over during the movement or transportation.

Images