CN216596646U

CN216596646U - Water electrolysis hydrogen production teaching equipment

Info

Publication number: CN216596646U
Application number: CN202220094679.5U
Authority: CN
Inventors: 王传杏; 李博涵; 刘冬
Original assignee: Nantong Institute of Technology
Current assignee: Nantong Institute of Technology
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-05-24
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses an electrolytic water hydrogen manufacturing teaching equipment, include: power base and water injection pipe, power base is DC power supply, power base all is connected with the plate electrode at the power two poles of the earth at top, power base is equipped with switch in the front side, water injection socle portion intercommunication has communicating pipe, communicating pipe one end intercommunication has the negative pole pipe, keep away from communicating pipe the one end intercommunication of negative pole pipe has anodal pipe, the negative pole pipe with install through waterproof glue anodal pipe bottom power base top, two the plate electrode is in respectively the negative pole pipe with anodal intraduct, the mouth of pipe has been seted up at the water injection socle top. According to the water electrolysis hydrogen production teaching equipment, the power supply base, the water injection pipe, the cathode pipe and the anode pipe are integrated, and the lifting handle is arranged, so that the teaching equipment is greatly convenient for teachers to carry; through setting up waterproof insulating pad and waterproof stopper, the effectual water of avoiding spills, prevents short circuit or electric shock in the experimentation.

Description

Water electrolysis hydrogen production teaching equipment

Technical Field

The utility model relates to a teaching aid technical field specifically is an electrolytic water hydrogen manufacturing teaching equipment.

Background

The electrolytic water experiment is an experiment for testing the composition of water and is also a classical chemical experiment in junior high school chemistry. Depending on the product produced during electrolysis, electrolysis can be classified into electrolytic water type, decomposition electrolyte type, hydrogen-and alkali-evolving type, oxygen-and acid-evolving type, and the like. The water consists of two elements of hydrogen and oxygen. The water is electrified to generate hydrogen and oxygen. Oxygen is produced at the positive electrode and hydrogen is produced at the negative electrode. Before and after the chemical reaction, the element types are unchanged. In chemical changes, a molecule can be divided into atoms, while atoms cannot be divided, and can constitute a new molecule.

In the teaching of junior middle school's chemistry today, the electrolysis water hydrogen manufacturing laboratory is indispensable, and when the teaching, the teacher often need carry a plurality of teaching aids cooperation and use, and it is very inconvenient to carry to great error appears easily when hydrogen manufacturing. Therefore, the teaching equipment for hydrogen production by water electrolysis is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electrolytic water hydrogen manufacturing teaching equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: an electrolytic water hydrogen production teaching equipment, comprising: power base and water injection pipe, power base is DC power supply, power base all is connected with the plate electrode at the power two poles of the earth at top, power base is equipped with switch in the front side, water injection socle portion intercommunication has communicating pipe, communicating pipe one end intercommunication has the negative pole pipe, keep away from communicating pipe the one end intercommunication of negative pole pipe has anodal pipe, the negative pole pipe with install through waterproof glue anodal pipe bottom power base top, two the plate electrode is in respectively the negative pole pipe with anodal intraduct, the mouth of pipe has been seted up at the water injection socle top.

By adopting the technical scheme, when hydrogen is produced by electrolyzing water in teaching, water is injected into the water injection pipe from the pipe orifice, so that the cathode pipe and the anode pipe are filled, then the power switch is turned on, the anode and the cathode are connected with the water in the cathode pipe and the anode pipe through the electrode plates, electrochemical reaction of water molecules occurs on the electrodes, oxygen is decomposed at the top of the anode pipe, hydrogen is decomposed at the top of the cathode pipe, and the volume of the hydrogen can be observed to be twice of the volume of the oxygen.

Preferably, the top of the power base is provided with a waterproof insulating pad, and the bottoms of the cathode tube and the anode tube are provided with waterproof plugs.

Through adopting above-mentioned technical scheme, reinforcing waterproof performance prevents that water from getting into power base in, the emergence circuit damages.

Preferably, the top of each of the cathode tube and the anode tube is provided with a tube opening, and the tube openings are provided with wood plugs.

By adopting the technical scheme, oxygen and hydrogen decomposed by water in the cathode tube and the anode tube can be collected, so that the chemical experiments of the oxygen and the hydrogen are conveniently carried out respectively.

Preferably, the outer walls of the cathode tube and the anode tube are provided with scales, and the numerical values of the scales are gradually increased from top to bottom.

By adopting the technical scheme, the gas volume of water decomposed in the cathode tube and the anode tube can be observed conveniently, and the volume of hydrogen is verified to be twice that of oxygen.

Preferably, the bottom of the power base is provided with an anti-skid foot pad.

Through adopting above-mentioned technical scheme, the frictional force of reinforcing power base and lectern prevents that this device from sliding to.

Preferably, the power base is coated with a waterproof coating on one side of the power switch.

Through adopting above-mentioned technical scheme, through the effectual water that prevents of waterproof coating gets into switch, prevent to take place the short circuit.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the water electrolysis hydrogen production teaching equipment, the power supply base, the water injection pipe, the cathode pipe and the anode pipe are integrated, and the lifting handle is arranged, so that the teaching equipment is greatly convenient for teachers to carry; through setting up waterproof insulating pad and waterproof stopper, the effectual water of avoiding spills, prevents short circuit or electric shock in the experimentation.

Drawings

FIG. 1 is a schematic perspective view of the teaching apparatus for hydrogen production by water electrolysis of the present invention;

FIG. 2 is a schematic view of the teaching equipment for hydrogen production by water electrolysis of the present invention;

FIG. 3 is a schematic view of a front view section of the teaching equipment for hydrogen production by water electrolysis.

In the figure: 1. a power supply base; 11. an electrode plate; 12. a power switch; 13. a waterproof insulating mat; 14. anti-skid foot pads; 2. a water injection pipe; 21. a communicating pipe; 22. a cathode tube; 23. a positive electrode tube; 24. a waterproof plug; 25. a pipe orifice; 26. a wooden plug; 27. calibration; 3. a support bar; 31. a cross bar; 32. a pipe clamp; 33. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a teaching apparatus for hydrogen production by water electrolysis comprises: the power supply comprises a power supply base 1 and a water injection pipe 2, wherein the power supply base 1 is a direct-current power supply, two poles of a power supply at the top of the power supply base 1 are connected with an electrode plate 11, the power supply base 1 is provided with a power supply switch 12 at the front side, in order to prevent the short circuit of the power supply switch 12, one side of the power supply base 1, which is coated with a waterproof coating, in order to distinguish the positions of a positive pole and a negative pole of the power supply base 1, the front side of the power supply base 1 is provided with signs of the positive pole and the negative pole, the bottom of the water injection pipe 2 is communicated with a communication pipe 21, one end of the communication pipe 21 is communicated with a negative pole pipe 22, the end, far away from the negative pole pipe 22, of the communication pipe 21 is communicated with a positive pole pipe 23, the bottoms of the negative pole pipe 22 and the positive pole pipe 23 are arranged at the top of the power supply base 1 through waterproof glue, in order to enhance the waterproof performance, water is prevented from entering the power supply base 1, a circuit is damaged, the top of the power supply base 1 is provided with a waterproof insulating pad 13, a waterproof plug 24 is arranged at the bottoms of the negative pole pipe 22 and the positive pole pipe 23, the two electrode plates 11 are respectively arranged inside the cathode tube 22 and the anode tube 23, so that in order to facilitate chemical experiments of oxygen and hydrogen respectively, pipe openings 25 are formed in the tops of the water injection tube 2, the cathode tube 22 and the anode tube 23, wood plugs 26 are arranged on the pipe openings 25, and when teaching hydrogen production by water electrolysis, water is injected into the water injection tube 2 from the pipe openings 25 until the cathode tube 22 and the anode tube 23 are filled with water;

when water is electrolyzed, water molecules generate electrochemical reaction on electrodes, oxygen is decomposed at the top of the anode tube 23, hydrogen is decomposed at the top of the cathode tube 22, in order to facilitate observation of the volume of gas decomposed by water in the cathode tube 22 and the anode tube 23, the outer walls of the cathode tube 22 and the anode tube 23 are respectively provided with a scale 27, the numerical value of the scale 27 is increased from top to bottom, simultaneously, the volume of hydrogen is two times of the volume of oxygen, in order to enhance the friction force between the power supply base 1 and a teacher desk and prevent the device from sliding, and the bottom of the power supply base 1 is provided with an anti-skid foot pad 14;

in order to increase the stability of water injection pipe 2, negative pole pipe 22 and anodal pipe 23, prevent to empty, the bracing piece 3 is installed at power base 1 in 2 rear sides of water injection pipe, and horizontal pole 31 welds on bracing piece 3, and several pipe clamp 32 is installed on horizontal pole 31, and pipe clamp 32 presss from both sides respectively on water injection pipe 2, negative pole pipe 22 and anodal pipe 23, for the convenience portable with this device, increases the portability, and handle 33 welds at 3 tops of bracing piece.

The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electrolytic water hydrogen manufacturing teaching equipment which characterized in that includes: power base (1) and water injection pipe (2), power base (1) is DC power supply, power base (1) all is connected with plate electrode (11) at the power two poles of the earth at top, power base (1) is equipped with switch (12) in the front side, water injection pipe (2) bottom intercommunication has communicating pipe (21), communicating pipe (21) one end intercommunication has negative pole pipe (22), keep away from communicating pipe (21) the one end intercommunication of negative pole pipe (22) has positive polar tube (23), negative pole pipe (22) with install through the waterproof glue positive polar tube (23) bottom power base (1) top, two plate electrode (11) are in respectively negative pole pipe (22) with inside positive polar tube (23), mouth of pipe (25) have been seted up at water injection pipe (2) top.

2. The teaching equipment for hydrogen production by electrolyzing water as claimed in claim 1 is characterized in that: the power supply base (1) top is equipped with waterproof insulating pad (13), negative pole pipe (22) with waterproof stopper (24) are installed to positive pole pipe (23) bottom.

3. The teaching equipment for hydrogen production by electrolyzing water as claimed in claim 2, wherein: and pipe openings (25) are formed in the tops of the cathode pipe (22) and the anode pipe (23), and wood plugs (26) are arranged on the pipe openings (25).

4. The teaching equipment for hydrogen production by electrolyzing water as claimed in claim 3, wherein: the cathode tube (22) and the anode tube (23) are provided with scales (27), and the numerical value of the scales (27) is gradually increased from top to bottom.

5. The teaching equipment for hydrogen production by electrolyzing water as claimed in claim 1 is characterized in that: and an anti-skid foot pad (14) is installed at the bottom of the power supply base (1).

6. The teaching equipment for hydrogen production by electrolyzing water as claimed in claim 1 is characterized in that: the power supply base (1) is coated with a waterproof coating on one side of the power switch (12).