Waste heat exchanger of water electrolysis hydrogen production device

Abstract

The utility model relates to the technical field of waste heat exchangers, in particular to a waste heat exchanger of a water electrolysis hydrogen production device, which comprises a waste heat exchanger body, a water inlet valve port, a water outlet valve port and a servo pressure cylinder, a limit component is fixedly mounted on the inner side of the waste heat exchanger body, and an energy storage mechanism is fixedly connected to the inner side of the waste heat exchanger body. The limiting assembly comprises a limiting pipe, a through hole is formed in the outer side of the limiting pipe, a piston is slidably connected to the inner side of the limiting pipe, a connecting rod is fixedly connected to the bottom end of the piston, an inclined plate is fixedly connected to the bottom end of the connecting rod, a limiting block is fixedly connected to the lower end of the inclined plate, a supporting spring is fixedly connected to one side of the limiting block, and the energy storage mechanism comprises a protective shell. Mechanical power generated when the electrolyte enters the waste heat exchanger is converted into elastic potential energy to be stored, and when the electrolyte is discharged, the energy of the elastic potential energy is released to effectively agitate impurities deposited in the electrolyte in the waste heat exchanger, so that the impurities are discharged along with the electrolyte.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat exchanger of electrolytic water hydrogen production device belongs to waste heat exchanger technical field. BACKGROUND

[0002] The working principle of the waste heat exchanger is based on the principle of heat conduction, which transfers the discharged waste heat to another medium to heat or cool it, thereby realizing the recovery and reuse of waste heat. By using the waste heat exchanger, enterprises can effectively recover and utilize waste heat resources, improve energy utilization rate, reduce energy consumption, and also reduce environmental pollution.

[0003] The waste heat exchanger of the electrolytic water hydrogen production device is a device that utilizes the waste heat generated during the electrolytic water hydrogen production process. It is usually connected to the electrolytic cell and the electrolyte circulation system, so that the electrolyte will be preheated in the waste heat exchanger during circulation, and then enter the electrolytic cell for electrolysis. This not only increases the initial temperature of the electrolyte and reduces the energy consumption of the electrolytic cell, but also makes the system more stable and efficient.

[0004] During the use of the waste heat exchanger of the electrolytic water hydrogen production device, impurities in the electrolyte will enter the waste heat exchanger along with the circulation of the electrolyte. Since the flow rate of the electrolyte through the waste heat exchanger is reduced to some extent, the flow rate is not sufficient to carry out these impurities, resulting in the accumulation of these impurities in the waste heat exchanger to form a deposition layer, affecting the heat exchange efficiency of the waste heat exchanger. Therefore, a waste heat exchanger of electrolytic water hydrogen production device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a waste heat exchanger of electrolytic water hydrogen production device belongs to waste heat exchanger technical field.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A waste heat exchanger for a water electrolysis hydrogen production device includes a waste heat exchanger body, an inlet valve, an outlet valve, and a servo booster cylinder. A limit assembly is fixedly installed inside the waste heat exchanger body, and an energy storage mechanism is fixedly connected inside the waste heat exchanger body. The limit assembly includes a limit tube with a through hole on its outer side. A piston is slidably connected to the inner side of the limit tube. A connecting rod is fixedly connected to the bottom end of the piston. An inclined plate is fixedly connected to the bottom end of the connecting rod. A limit block is fixedly connected to the lower end of the inclined plate. A support spring is fixedly connected to one side of the limit block. The energy storage mechanism includes a protective shell. A bearing is fixedly installed inside the protective shell. A shaft is fixedly connected inside the bearing. A sealing ring is fixedly connected through the shaft. A water wheel is fixedly connected to one end of the shaft, and a helical gear is fixedly connected to the other end of the shaft. The energy storage assembly is fixedly connected inside the protective shell.

[0008] As a further optimization of this utility model, the bottom end of the limiting tube is fixedly connected to the upper end of the protective shell, the through hole is set inside the waste heat exchanger body, and there are several through holes, which are distributed in a ring array on the outside of the limiting tube.

[0009] As a further optimization of this utility model, the following features are provided: two connecting rods are provided, which are symmetrically distributed at the lower end of the piston. The positions of the connecting rods correspond one-to-one with the positions of the inclined plates. The included angle between the support spring and the limiting block is 90°. A threaded half-groove is provided on one side of the limiting block. A protective shell is fixedly connected to one end of the support spring.

[0010] As a further optimization of this utility model, the included angle between the shaft and the protective shell is 90°, one side of the sealing ring is fitted with the outer side of the protective shell, the shaft and the water wheel are on the same axis, and the water wheel is located below the water inlet valve.

[0011] As a further optimization of this utility model, the energy storage component includes a support rod, a toothed sleeve rotatably connected to the outside of the support rod, a hollow threaded rod fixedly connected to one end of the toothed sleeve, a sliding tube fixedly connected to one end of the hollow threaded rod, a buffer ring fixedly connected to the outside of the sliding tube, an energy storage spring fixedly connected to one end of the sliding tube, and a guide tube provided on the outside of the support rod.

[0012] As a further optimization of this utility model, the toothed sleeve is meshed with a helical gear at its upper end, the support rod, the toothed sleeve and the hollow threaded rod are on the same axis, the hollow threaded rod is slidably connected to the outside of the support rod, the outside of the hollow threaded rod is in contact with the threaded half groove opened on one side of the limiting block, and the outside of the sliding tube is in contact with the inside of the guide tube.

[0013] As a further optimization of this utility model, the following features are provided: the central axis of the support rod and the central axis of the guide tube are on the same straight line; the support rod and the shaft are parallel to each other; one end of the energy storage spring is fixedly connected to a protective shell; one end of the guide tube is fixedly connected to a protective shell; and the diameter of the energy storage spring is five-sixths of the inner diameter of the guide tube.

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

[0015] In this invention, the mechanical power generated by the electrolyte entering the waste heat exchanger is converted into elastic potential energy and stored by setting a limiting component and an energy storage mechanism. When the electrolyte is discharged, the energy of the elastic potential energy is released to effectively agitate the impurities deposited in the electrolyte inside the waste heat exchanger, so that they are discharged with the electrolyte, thereby realizing the self-cleaning of the waste heat exchanger. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the limiting component of this utility model;

[0020] Figure 5 This is a schematic diagram of the energy storage mechanism of this utility model;

[0021] Figure 6 This is a cross-sectional view of the energy storage mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the energy storage component structure of this utility model;

[0023] Figure 8 This is a cross-sectional structural diagram of the energy storage component of this utility model.

[0024] In the diagram: 1. Waste heat exchanger body; 2. Inlet valve; 3. Outlet valve; 4. Servo booster cylinder;

[0025] 5. Limiting assembly; 51. Limiting tube; 52. Through hole; 53. Piston; 54. Connecting rod; 55. Inclined plate; 56. Limiting block; 57. Support spring;

[0026] 6. Energy storage mechanism; 61. Protective shell; 62. Bearing; 63. Shaft; 64. Sealing ring; 65. Water turbine; 66. Helical gear; 67. Energy storage component; 671. Support rod; 672. Toothed sleeve; 673. Hollow threaded rod; 674. Sliding tube; 675. Buffer ring; 676. Energy storage spring; 677. Guide tube. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Please see Figures 1-8 This utility model provides a technical solution:

[0030] A waste heat exchanger for a water electrolysis hydrogen production device includes a waste heat exchanger body 1, an inlet valve 2, an outlet valve 3, and a servo booster cylinder 4. A limit assembly 5 is fixedly installed inside the waste heat exchanger body 1, and an energy storage mechanism 6 is fixedly connected to the inside of the waste heat exchanger body 1. The limit assembly 5 includes a limit tube 51, with a through hole 52 on the outer side of the limit tube 51. A piston 53 is slidably connected to the inner side of the limit tube 51, and a connecting rod 54 is fixedly connected to the bottom end of the piston 53. The bottom end of the connecting rod 54 is fixedly connected to... An inclined plate 55 is connected to the lower end of the inclined plate 55. A limit block 56 is fixedly connected to the lower end of the inclined plate 55. A support spring 57 is fixedly connected to one side of the limit block 56. The energy storage mechanism 6 includes a protective shell 61. A bearing 62 is fixedly installed inside the protective shell 61. A shaft 63 is fixedly connected inside the bearing 62. A sealing ring 64 is fixedly connected through the shaft 63. A water wheel 65 is fixedly connected to one end of the shaft 63. A helical gear 66 is fixedly connected to one end of the shaft 63. An energy storage component 67 is fixedly connected inside the protective shell 61.

[0031] As a further implementation of this solution, the bottom end of the limiting tube 51 is fixedly connected to the upper end of the protective shell 61. The through hole 52 is set inside the waste heat exchanger body 1. There are several through holes 52, which are arranged in a ring array on the outside of the limiting tube 51. There are two connecting rods 54, which are symmetrically distributed at the lower end of the piston 53. The position of the connecting rod 54 corresponds to the position of the inclined plate 55. The included angle between the support spring 57 and the limiting block 56 is 90°. A threaded half-groove is opened on one side of the limiting block 56. One end of the support spring 57 is fixedly connected to the protective shell 61. This arrangement makes it convenient for the servo booster cylinder 4 to pressurize the inside of the waste heat exchanger body 1, so that the electrolyte inside can flow out quickly, and at the same time, the limitation of the limiting block 56 on the hollow threaded rod 673 can be quickly released.

[0032] As a further implementation of this solution, the included angle between the shaft 63 and the protective shell 61 is 90°, one side of the sealing ring 64 is in contact with the outside of the protective shell 61, the shaft 63 and the water wheel 65 are on the same axis, and the water wheel 65 is located below the water inlet valve 2. This setting helps to reduce the vibration and noise caused by the shaft 63 due to the axis deviation and improve the overall working efficiency.

[0033] As a further implementation of this solution, the energy storage component 67 includes a support rod 671, a toothed sleeve 672 rotatably connected to the outside of the support rod 671, a hollow threaded rod 673 fixedly connected to one end of the toothed sleeve 672, a sliding tube 674 fixedly connected to one end of the hollow threaded rod 673, a buffer ring 675 fixedly connected to the outside of the sliding tube 674, and an energy storage spring 676 fixedly connected to one end of the sliding tube 674. A guide tube 677 is provided on the outside of the support rod 671. This design ensures that the support rod 671 provides support without obstructing other components.

[0034] As a further implementation of this solution, a helical gear 66 is meshed at the upper end of the toothed sleeve 672. The support rod 671, the toothed sleeve 672, and the hollow threaded rod 673 are on the same axis. The hollow threaded rod 673 is slidably connected to the outside of the support rod 671. The outside of the hollow threaded rod 673 is in contact with the threaded half-groove opened on one side of the limiting block 56. The outside of the sliding tube 674 is in contact with the inside of the guide tube 677. This arrangement enables the helical gear 66 and the toothed sleeve 672 to achieve smooth and efficient transmission, providing better torque transmission and axial positioning capabilities.

[0035] As a further implementation of this solution, the central axis of the support rod 671 and the central axis of the guide tube 677 are on the same straight line. The support rod 671 and the shaft 63 are parallel to each other. One end of the energy storage spring 676 is fixedly connected to the protective shell 61, and one end of the guide tube 677 is fixedly connected to the protective shell 61. The diameter of the energy storage spring 676 is five-sixths of the inner diameter of the guide tube 677. This arrangement allows the support rod 671 and the guide tube 677 to guide the energy storage spring 676 while also reducing the contact between the energy storage spring 676 and the inner wall of the guide tube 677, thus extending the service life of the components.

[0036] Working process: During operation, the electrolyte enters the waste heat exchanger body 1 through the inlet valve 2. After heat exchange in the waste heat exchanger body 1, it is discharged from the outlet valve 3 and then enters the electrolytic cell for hydrogen production. This achieves the effect of increasing the initial temperature of the electrolyte and reducing energy consumption during the electrolyte circulation process. The electrolyte entering the waste heat exchanger body 1 through the inlet valve 2 impacts the water wheel 65 during its descent, causing the arc-shaped blades on the outer side of the water wheel 65 to rotate. When the water wheel 65 rotates, it drives the fixedly connected shaft 63 to rotate. The bearing 62 reduces the friction generated when the shaft 63 rotates. The sealing ring 64 prevents electrolyte from entering the protective shell 61 and causing corrosion of its internal components. When the shaft 63 rotates, it drives the helical gear 66 to rotate, causing the toothed sleeve 672, which meshes with the helical gear 66, to rotate. When the toothed sleeve 672 rotates, it drives the hollow threaded rod 673 to rotate. Because the hollow threaded rod 673 is in contact with the threaded half-groove on one side of the limiting block 56, the limiting block 56 restricts its rotation, causing it to slide along the support rod 671. When the hollow threaded rod 673 moves, it drives the fixedly connected sliding tube 674 to move, causing the sliding tube 674 to exert a pulling force on the energy storage spring 676, thus... The energy storage spring 676 deforms, converting mechanical power into elastic potential energy for storage. When the electrolyte submerges the water wheel 65, the arc-shaped blades on the outside of the water wheel 65 are no longer impacted and gradually return to a stationary state. At this time, the outlet valve 3 discharges the electrolyte inside the waste heat exchanger body 1, and simultaneously controls the servo booster cylinder 4 to pressurize the inside of the limit tube 51. The through hole 52 connects the inside of the waste heat exchanger body 1 with the inside of the limit tube 51, so the inside of the waste heat exchanger body 1 is also pressurized, accelerating the discharge of electrolyte. At the same time, the piston 53 is subjected to downward pressure and slides downward inside the limit tube 51, and drives the inclined plate 55 to move through the fixedly connected connecting rod 54. When plate 55 moves, it causes the limiting block 56 to squeeze the supporting spring 57, thereby causing the two limiting blocks 56 to separate. At this time, the hollow threaded rod 673 is no longer restricted by the limiting block 56, and the elastic potential energy stored in the energy storage spring 676 is quickly released. It drives the hollow threaded rod 673 to reset through the sliding tube 674. While the hollow threaded rod 673 drives the toothed sleeve 672 to move, the toothed sleeve 672 drives the meshing helical gear 66 to rotate, causing the water wheel 65 to rotate in the opposite direction. This quickly stirs the electrolyte, agitates the deposited impurities, and allows the impurities to be discharged from the inside of the waste heat exchanger body 1 along with the electrolyte, preventing impurities from accumulating inside the waste heat exchanger body 1 and forming a deposit layer.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat exchanger for a water electrolysis hydrogen production device, comprising a waste heat exchanger body (1), an inlet valve (2), an outlet valve (3), and a servo booster cylinder (4), characterized in that: A limiting component (5) is fixedly installed inside the waste heat exchanger body (1), and an energy storage mechanism (6) is fixedly connected inside the waste heat exchanger body (1). The limiting component (5) includes a limiting tube (51), a through hole (52) is provided on the outer side of the limiting tube (51), a piston (53) is slidably connected to the inner side of the limiting tube (51), a connecting rod (54) is fixedly connected to the bottom end of the piston (53), an inclined plate (55) is fixedly connected to the bottom end of the connecting rod (54), a limiting block (56) is fixedly connected to the lower end of the inclined plate (55), and a support spring (57) is fixedly connected to one side of the limiting block (56); The energy storage mechanism (6) includes a protective shell (61), a bearing (62) is fixedly installed inside the protective shell (61), a shaft (63) is fixedly connected inside the bearing (62), a sealing ring (64) is fixedly connected through the shaft (63), a water wheel (65) is fixedly connected to one end of the shaft (63), a helical gear (66) is fixedly connected to one end of the shaft (63), and an energy storage component (67) is fixedly connected inside the protective shell (61).

2. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 1, characterized in that: The bottom end of the limiting tube (51) is fixedly connected to the upper end of the protective shell (61). The through hole (52) is set inside the waste heat exchanger body (1). There are several through holes (52), and the through holes (52) are arranged in a ring array on the outside of the limiting tube (51).

3. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 1, characterized in that: There are two connecting rods (54), which are symmetrically distributed at the lower end of the piston (53). The positions of the connecting rods (54) correspond one-to-one with the positions of the inclined plate (55). The included angle between the support spring (57) and the limiting block (56) is 90°. A threaded half-groove is opened on one side of the limiting block (56). A protective shell (61) is fixedly connected to one end of the support spring (57).

4. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 1, characterized in that: The included angle between the shaft (63) and the protective shell (61) is 90°. One side of the sealing ring (64) is in contact with the outside of the protective shell (61). The shaft (63) and the water wheel (65) are on the same axis. The water wheel (65) is located below the water inlet valve (2).

5. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 1, characterized in that: The energy storage component (67) includes a support rod (671), a toothed sleeve (672) is rotatably connected to the outside of the support rod (671), a hollow threaded rod (673) is fixedly connected to one end of the toothed sleeve (672), a sliding tube (674) is fixedly connected to one end of the hollow threaded rod (673), a buffer ring (675) is fixedly connected to the outside of the sliding tube (674), an energy storage spring (676) is fixedly connected to one end of the sliding tube (674), and a guide tube (677) is provided on the outside of the support rod (671).

6. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 5, characterized in that: The toothed sleeve (672) is engaged with a helical gear (66) at its upper end. The support rod (671), the toothed sleeve (672), and the hollow threaded rod (673) are on the same axis. The hollow threaded rod (673) is slidably connected to the outside of the support rod (671). The outside of the hollow threaded rod (673) is in contact with the threaded half-groove opened on one side of the limiting block (56). The outside of the sliding tube (674) is in contact with the inside of the guide tube (677).

7. The waste heat exchanger of the water electrolysis hydrogen production device according to claim 5, characterized in that: The central axis of the support rod (671) and the central axis of the guide tube (677) are on the same straight line. The support rod (671) and the shaft (63) are parallel to each other. One end of the energy storage spring (676) is fixedly connected to the protective shell (61). One end of the guide tube (677) is fixedly connected to the protective shell (61). The diameter of the energy storage spring (676) is five-sixths of the inner diameter of the guide tube (677).

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