High-low liquid level alarm device of water tank for hydrogen production by water electrolysis

Abstract

The utility model discloses a water tank high-low liquid level alarm device for hydrogen production by water electrolysis, which comprises a water tank, a cylinder fixedly sleeved on the top surface of the water tank, a plurality of water outlet holes penetrating through the inner wall of the lower end of the cylinder, a floating block connected in the cylinder in a lifting manner, a first contact switch fixed on the bottom surface of the floating block, a scale rod fixed on the top surface of the floating block, and a cover plate sleeved outside the scale rod, the cover plate is fixed in the cylinder body, a plurality of water inlet holes penetrate through the top surface of the cover plate, the cover plate is fixedly connected with two radially symmetrical second contact switches, the second contact switches are movably connected with the scale rod, a controller is fixedly connected to the outside of the water tank, and a first buzzer and a second buzzer are fixed to the outside of the water tank. The alarm sound of the first buzzer is different from the alarm sound of the second buzzer. According to the utility model, the first contact switch is arranged on the bottom surface of the floating block, the second contact switch is fixed in the cover plate, and the first buzzer and the second buzzer are arranged outside the water tank, so that an alarm can be given when the water level in the water tank is too low or too high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen preparation, in particular to a high and low liquid level alarm device for a water tank for hydrogen production by electrolysis of water. Background Art

[0002] Hydrogen is a colorless gas with a lower density than air. Among all gases, hydrogen has the lowest density. Under standard conditions, the mass of 1 liter of hydrogen is 0.0899 grams, which is much lighter than air of the same volume. Because hydrogen is insoluble in water, it can be collected by drainage gas collection. In addition, at a pressure of 101 kPa and a temperature of -252.87°C, hydrogen can be transformed into a colorless liquid and a snow-like solid at -259.1°C. At room temperature, the properties of hydrogen are very stable and it is not easy to react chemically with other substances. However, when the conditions change, such as ignition, heating, and the use of catalysts, the situation is different. For example, hydrogen After being adsorbed by metals such as palladium or platinum, the gas has strong activity, especially palladium. Metal palladium has the strongest adsorption effect on hydrogen. When the volume fraction in the air is 4%-75%, it may cause an explosion when encountering a fire source. For the application of hydrogen in health care products, a certain amount of free radicals can be removed in the blood circulation by inhaling hydrogen. When the hydrogen production device works to reduce the water content to a certain level, an alarm device is required to prompt, but the existing water tank alarm device for electrolysis of water to produce hydrogen can only perform low water level alarm, and cannot have both low water level and high water level alarms. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a high and low liquid level alarm device for a water tank used for electrolyzing water to produce hydrogen.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high and low liquid level alarm device for a water tank used for electrolysis of water to produce hydrogen, comprising a water tank, a cylinder body offsetly arranged on the top surface of the water tank, the cylinder body fixedly sleeved on the top surface of the water tank, a plurality of water outlet holes passing through the inner wall of the lower end of the cylinder body, a floating block lifting and lowering connection inside the cylinder body, a first contact switch concentrically fixed on the bottom surface of the floating block, a scale rod concentrically fixed on the top surface of the floating block, a cover plate axially slidably sleeved on the outside of the scale rod, the cover plate fixed in the cylinder body, a plurality of water inlet holes passing through the top surface of the cover plate, two radially symmetrical second contact switches fixedly connected to the cover plate, the second contact switch being movably connected to the scale rod, a controller fixedly connected to the outside of the water tank, the first contact switch and the second contact switch being electrically connected to the controller, two first buzzers and a second buzzer electrically connected to the controller being respectively fixed on the outside of the water tank, and the alarm sounds of the first buzzer and the second buzzer are different.

[0005] As a further description of the above technical solution: the end of the cylinder extends into the water tank, and the end of the cylinder is fixedly connected to the bottom wall of the water tank.

[0006] As a further description of the above technical solution: two radially symmetrical guide grooves are axially opened on the outside of the scale rod, and the two second contact switches are axially slidably connected in the two guide grooves respectively. A through hole is passed through the center of the top surface of the cover plate, and the two second contact switches are fixed in the through hole.

[0007] As a further description of the above technical solution: a plurality of blocking blocks adapted to the water inlet hole are vertically fixed on the top surface of the floating block, the diameter of the blocking blocks is equal to the diameter of the water inlet hole, and the blocking blocks and the water inlet hole are located on the same axis.

[0008] As a further description of the above technical solution: the top surface of the block is axially penetrated by a plurality of equally spaced fan-shaped grooves, the fan-shaped grooves are staggered with the water inlet holes, one fan-shaped groove is provided between every two blockages, and the diameter of the floating block is equal to the inner diameter of the cylinder.

[0009] As a further description of the above technical solution: a water retaining ring is fixedly sleeved on the top surface of the cylinder, the water retaining ring is a horn ring in a large radial direction, and a waterproof sleeve is sleeved on the outside of the first contact switch, and the waterproof sleeve is fixedly connected to the bottom surface of the floating block.

[0010] The utility model has the following beneficial effects:

[0011] Compared with the prior art, the high and low liquid level alarm device for the water tank used for hydrogen production by electrolysis of water arranges a first contact switch on the bottom surface of the float, fixes a second contact switch in the cover plate, and arranges a first buzzer and a second buzzer outside the water tank, so that an alarm can be issued when the water level in the water tank is too low or too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the overall structure of the high and low liquid level alarm device for the water tank used for electrolyzing water to produce hydrogen proposed by the utility model;

[0013] Figure 2 This is a main cross-sectional view of the overall structure of the high and low liquid level alarm device for the water tank used for electrolysis of water to produce hydrogen proposed by the utility model;

[0014] Figure 3 A three-dimensional diagram of the overall structure of the cylinder of the high and low liquid level alarm device for the water tank for electrolyzing water to produce hydrogen proposed by the utility model;

[0015] Figure 4 A three-dimensional diagram showing the connection between the scale rod and the float of the high and low liquid level alarm device for the water tank for electrolyzing water to produce hydrogen proposed by the utility model;

[0016] Figure 5 This is a side sectional view of the connection between the scale rod and the cover plate of the high and low liquid level alarm device of the water tank for electrolyzing water to produce hydrogen proposed by the utility model.

[0017] Legend:

[0018] 1. Water tank; 2. Cylinder; 3. Water retaining ring; 4. Cover plate; 5. Scale rod; 6. Water inlet hole; 7. First buzzer; 8. Second buzzer; 9. Controller; 10. Block; 11. Fan-shaped groove; 12. Water outlet hole; 13. First contact switch; 14. Float; 15. Guide groove; 16. Second contact switch; 17. Through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figures 1 to 5 The utility model provides a high and low liquid level alarm device for a water tank for electrolyzing water to produce hydrogen: it comprises a water tank 1, a cylinder 2 is offsetly arranged on the top surface of the water tank 1, the cylinder 2 is fixedly sleeved on the top surface of the water tank 1, the end of the cylinder 2 extends into the water tank 1, and the end of the cylinder 2 is fixedly connected to the bottom wall of the water tank 1, a plurality of water outlet holes 12 are penetrated through the inner wall of the lower end of the cylinder 2, a floating block 14 is lifted and connected inside the cylinder 2, a first contact switch 13 is concentrically fixed to the bottom surface of the floating block 14, a scale rod 5 is concentrically fixed to the top surface of the floating block 14, a cover plate 4 is axially slidably sleeved on the outside of the scale rod 5, the cover plate 4 is fixed in the cylinder 2, a plurality of water inlet holes 6 are penetrated on the top surface of the cover plate 4, and the cover plate 4 is fixedly connected to two diameters. The second contact switch 16 is symmetrical in the direction of the water tank 1, and the second contact switch 16 is movably connected to the scale rod 5. Two radially symmetrical guide grooves 15 are axially provided on the outside of the scale rod 5. The two second contact switches 16 are respectively axially slidably connected in the two guide grooves 15. A through hole 17 is penetrated through the center of the top surface of the cover plate 4. The two second contact switches 16 are fixed in the through hole 17. A controller 9 is fixedly connected to the outside of the water tank 1. The first contact switch 13 and the second contact switch 16 are both electrically connected to the controller 9. Two first buzzers 7 and second buzzers 8 electrically connected to the controller 9 are respectively fixed on the outside of the water tank 1, and the alarm sounds of the first buzzer 7 and the second buzzer 8 are different;

[0021] A plurality of blockers 10 adapted to the water inlet hole 6 are vertically fixed on the top surface of the float 14, the diameter of the block 10 is equal to the diameter of the water inlet hole 6, and the block 10 and the water inlet hole 6 are located on the same axis, and a plurality of equally spaced fan-shaped grooves 11 are axially penetrated through the top surface of the block 10, the fan-shaped grooves 11 are staggered with the water inlet hole 6, a fan-shaped groove 11 is provided between each two blockers 10, and the diameter of the float 14 is equal to the inner diameter of the cylinder 2, a water retaining ring 3 is fixedly sleeved on the top surface of the cylinder 2, the water retaining ring 3 is a horn ring in a large radial direction, and a waterproof sleeve is sleeved on the outside of the first contact switch 13, and the waterproof sleeve is fixedly connected to the bottom surface of the float 14.

[0022] By arranging a first contact switch 13 on the bottom surface of the float 14, fixing a second contact switch 16 in the cover plate 4, and arranging a first buzzer 7 and a second buzzer 8 outside the water tank 1, an alarm can be sounded when the water level in the water tank 1 is too low or too high;

[0023] Working principle: When the water level in the water tank 1 is too low, the float 14 will drive the scale rod 5 to drop to the lowest point, and at the same time, the first contact switch 13 will fit the bottom wall of the cylinder 2, and the first contact switch 13 will send a contact signal to the controller 9, and the controller 9 will start the first buzzer 7 to sound an alarm;

[0024] When the water level is too high, the float 14 will drive the scale rod 5 to rise to the highest point, the second contact switch 16 will fit with the bottom wall of the guide groove 15, and the second switch will send a contact signal to the controller 9. The controller 9 will start the second buzzer 8 to sound an alarm. At the same time, the blocking block 10 will block the water inlet 6 to prevent water from continuously entering the cylinder 2 and causing water to overflow. At the same time, the water level in the water tank 1 can be observed through the reading on the scale rod 5.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high and low liquid level alarm device for a water tank for producing hydrogen by electrolysis of water, comprising a water tank (1), characterized in that: A cylinder (2) is offsetly arranged on the top surface of the water tank (1), the cylinder (2) is fixedly sleeved on the top surface of the water tank (1), a plurality of water outlet holes (12) are penetrated through the inner wall of the lower end of the cylinder (2), a floating block (14) is lifted and connected inside the cylinder (2), a first contact switch (13) is coaxially fixed to the bottom surface of the floating block (14), a scale rod (5) is coaxially fixed to the top surface of the floating block (14), a cover plate (4) is axially slidably sleeved on the outside of the scale rod (5), the cover plate (4) is fixed inside the cylinder (2), and a plurality of water inlet holes are penetrated through the top surface of the cover plate (4) (6), the cover plate (4) is fixedly connected to two radially symmetrical second contact switches (16), the second contact switches (16) are movably connected to the scale rod (5), the outside of the water tank (1) is fixedly connected to a controller (9), the first contact switch (13) and the second contact switch (16) are both electrically connected to the controller (9), and the outside of the water tank (1) is respectively fixed with two first buzzers (7) and second buzzers (8) electrically connected to the controller (9), and the first buzzer (7) and the second buzzer (8) have different alarm sounds.

2. The high and low liquid level alarm device for the water tank for hydrogen production by electrolysis of water according to claim 1, characterized in that: The end of the cylinder (2) extends into the water tank (1), and the end of the cylinder (2) is fixedly connected to the bottom wall of the water tank (1).

3. The high and low liquid level alarm device for the water tank for hydrogen production by electrolysis of water according to claim 1, characterized in that: Two radially symmetrical guide grooves (15) are axially provided on the outside of the scale rod (5), and the two second contact switches (16) are respectively axially slidably connected in the two guide grooves (15). A through hole (17) is passed through the center of the top surface of the cover plate (4), and the two second contact switches (16) are fixed in the through hole (17).

4. The high and low liquid level alarm device for the water tank for hydrogen production by electrolysis of water according to claim 1, characterized in that: A plurality of blocking blocks (10) adapted to the water inlet hole (6) are vertically fixed on the top surface of the floating block (14); the diameter of the blocking blocks (10) is equal to the diameter of the water inlet hole (6), and the blocking blocks (10) and the water inlet hole (6) are located on the same axial line.

5. The high and low liquid level alarm device for the water tank for hydrogen production by electrolysis of water according to claim 4, characterized in that: The top surface of the blocking block (10) is axially penetrated by a plurality of equally spaced fan-shaped grooves (11), the fan-shaped grooves (11) and the water inlet holes (6) are staggered, one fan-shaped groove (11) is provided between each two blocking blocks (10), and the diameter of the floating block (14) is equal to the inner diameter of the cylinder (2).

6. The high and low liquid level alarm device for the water tank for hydrogen production by electrolysis of water according to claim 1, characterized in that: A water retaining ring (3) is fixedly sleeved on the top surface of the cylinder (2), and the water retaining ring (3) is a horn ring in a large radial direction. A waterproof sleeve is sleeved on the outside of the first contact switch (13), and the waterproof sleeve is fixedly connected to the bottom surface of the floating block (14).

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