Portable water electrolyzer with battery box

Abstract

The utility model relates to a portable water electrolyzer with a battery box, which comprises a sealing bag, two through holes are arranged at the bottom of the sealing bag, and a positive electrode material and a negative electrode material are respectively arranged in the two through holes; two pipettes are arranged in the sealing bag, the bottom ends of the two pipettes are communicated with the positive electrode material and the negative electrode material respectively, the top ends of the two pipettes are sleeved with a first latex tube and a second latex tube respectively, the first latex tube corresponds to the negative electrode material, and the second latex tube corresponds to the negative electrode material. The second latex tube corresponds to the positive electrode material, the first latex tube and the second latex tube penetrate out of the sealing bag, the top end of the first latex tube is connected with a needle head, and the top of the second latex tube is connected with a sharp-nose catheter; the first latex tube and the second latex tube are sleeved with water stop clamps. A power supply device is arranged at the bottom of the sealing bag, the electrolysis effect can be achieved once the sealing bag is discharged, airflow controllability can be achieved by extruding the sealing bag, and the hydrogen combustion phenomenon is obvious.

Description

Technical Field

[0001] The utility model relates to a portable water electrolyzer with a battery box, belonging to the technical field of teaching tools. Background Art

[0002] For a long time, Hofmann water electrolyzers have been often used in water electrolysis experiments in laboratories. However, due to the high center of gravity of the Hofmann water electrolyzer, which is easy to tip over, the long electrolysis time and the high price, it is difficult to promote its large-scale use in classrooms with limited time.

[0003] Chinese patent CN108461024A discloses a simple water electrolysis experimental device including a gas collecting bottle, a copper wire, and a test tube. The test tube is made of two test tubes filled with water and plugged with rubber stoppers. The small holes on the rubber stoppers allow the copper wire to pass through easily. However, this technology has the following disadvantages: (1) the amount of gas generated is small; (2) hydrogen escapes too quickly, the combustion duration is short, and the phenomenon is not obvious. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a portable water electrolyzer with a battery box, which has a fast electrolysis rate, does not need to carry a student power supply, can electrolyze as soon as it is released, has controllable airflow, and obvious hydrogen combustion phenomenon.

[0005] The technical solution of the utility model is as follows:

[0006] A portable water electrolyzer with a battery box comprises a sealing bag, wherein two through holes are provided at the bottom of the sealing bag, and a positive electrode material and a negative electrode material are respectively arranged in the two through holes; two pipettes are arranged inside the sealing bag, and the bottom ends of the two pipettes are respectively connected with the positive electrode material and the negative electrode material, and the top ends of the two pipettes are respectively sleeved with a first latex tube and a second latex tube, the first latex tube corresponds to the negative electrode material, and the second latex tube corresponds to the positive electrode material, the first latex tube and the second latex tube pass through the sealing bag, the top end of the first latex tube is connected with a needle, and the top of the second latex tube is connected with a pointed catheter; the first latex tube and the second latex tube are sleeved with a water stop clamp; and a power supply device is arranged at the bottom of the sealing bag.

[0007] Among them, the power supply device includes a battery box and a fixed frame box arranged on the top of the battery box, two copper sheets are arranged at the bottom of the fixed frame box, two batteries connected in series are installed inside the battery box, and the power supply device also includes screws, which pass through the copper sheet, the fixed frame box and the battery box in sequence, and the screws are fixedly connected to the wires at both ends of the two batteries connected in series; a touch switch button is arranged on the outside of the battery box, and the touch switch button is connected to the other two wires of the two batteries connected in series; the positive electrode material and the negative electrode material are connected separately to the two copper sheets.

[0008] Wherein, the pipette is engraved with scale lines of 0mL-30mL.

[0009] Wherein, the through hole at the bottom of the sealing bag and the opening at the top of the sealing bag for passing the first latex tube and the second latex tube are both sealed by hot melt adhesive.

[0010] Wherein, the water stop clamp is a Robert clamp.

[0011] Wherein, the sealing bag is an acid and alkali resistant PVC sealing bag.

[0012] The utility model has the following beneficial effects:

[0013] The device forms a closed reaction container by using an acid- and alkali-resistant PVC sealing bag. By pressing the sealing bag, the airflow can be controlled, so that the hydrogen combustion phenomenon is obvious. At the same time, after the sealing bag is sealed, the medicine will not leak even if the instrument is poured at any angle. Countersunk self-combustion screws are used as electrode materials to increase the electrolysis efficiency. At the same time, through the power supply device, the electrolysis effect can be achieved with one release, and the device is light and portable. Compared with the existing Hoffman water electrolyzer, there is no need to carry a student power supply, and the device is light and portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] The reference numerals in the figure are as follows:

[0016] 1. Sealing bag; 2. Positive electrode material; 3. Negative electrode material; 4. Pipette; 5. First latex tube; 6. Second latex tube; 7. Needle; 8. Pointed catheter; 9. Battery box; 10. Fixed frame box; 11. Copper sheet; 12. Battery; 13. Touch switch button; 14. Water stop clamp; 15. Screws; 16. Electrolyte. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] See also Figure 1 , the utility model provides a technical solution:

[0019] A portable water electrolyzer with a battery box comprises a sealing bag 1, wherein the sealing bag 1 encapsulates an electrolyte 16, and two through holes are provided at the bottom of the sealing bag 1, wherein a positive electrode material 2 and a negative electrode material 3 are respectively provided in the two through holes; specifically, the positive electrode material 2 and the negative electrode material 3 are both 304 stainless steel countersunk self-tapping screws with latex gaskets, and the countersunk self-tapping screws have a larger contact area, will not corrode in a sodium hydroxide solution, and have a high electrolysis efficiency, and the two through holes are sealed with hot melt adhesive;

[0020] Two pipettes 4 are arranged inside the sealing bag 1, and scale lines of 0mL-30mL are engraved on the pipettes 4. The bottom ends of the two pipettes 4 are respectively connected to the positive electrode material 2 and the negative electrode material 3, and the top ends of the two pipettes 4 are respectively sleeved with a first latex tube 5 and a second latex tube 6. The first latex tube 5 corresponds to the negative electrode material 3, and the second latex tube 6 corresponds to the positive electrode material 2. The first latex tube 5 and the second latex tube 6 pass through the sealing bag 1, and the first latex tube 5 and the second latex tube 6 pass through the sealing bag 1 and are sealed by hot melt adhesive; the top end of the first latex tube 5 is connected to a needle 7, and the top of the second latex tube 6 is connected to a pointed catheter 8; the first latex tube 5 and the second latex tube 6 are sleeved with a water stop clamp 14; a power supply device is arranged at the bottom of the sealing bag 1.

[0021] A closed reaction container is formed by using an acid- and alkali-resistant PVC sealing bag 1. By repeatedly pressing the sealing bag 1, the two pipettes 4 can be filled with liquid without any instrument before the experiment. The gas flow rate can be actively controlled after the experiment. After the sealing bag 1 is sealed, the medicine will not leak even if the instrument is poured at any angle. Compared with the existing Hofmann water electrolyzer, the medicine will not leak and the air flow rate is controllable.

[0022] The power supply device includes a battery box 9 and a fixed frame box 10 arranged on the top of the battery box 9, two copper sheets 11 are arranged at the bottom of the fixed frame box 10, two batteries 12 connected in series are installed inside the battery box 9, and the power supply device also includes a screw 15, the screw 15 passes through the copper sheet 11, the fixed frame box 10 and the battery box 9 in sequence, and the screw 15 is fixedly connected to the wires at both ends of the two batteries 12 connected in series; a touch switch button 13 is arranged on the outside of the battery box 9, and the touch switch button 13 is connected to the other two wires of the two batteries 12 connected in series; the positive electrode material 2 and the negative electrode material 3 are respectively connected to the two copper sheets 11.

[0023] When it is necessary to do group experiments for students, the battery box 9 can also be changed into a wire with an alligator clip to clamp the two electrodes, and directly connected to the power supply of the laboratory, which is convenient for switching.

[0024] Specifically, the water stop clip 14 is a Robert clip, and the sealing bag 1 is an acid and alkali resistant PVC sealing bag.

[0025] The experimental steps are as follows:

[0026] (1) Pour 10% NaOH solution as electrolyte 16 into the sealable bag 1 using a funnel and seal the bag;

[0027] (2) Squeeze the sealing bag 1 until the liquid levels of the two pipettes 4 are both at the 0 mL mark, close the water stop clamp 14, and release;

[0028] (3) Press the touch switch button 13 of the battery box 9 to energize the inside, and put the sealed bag 1 into the fixed frame box 10;

[0029] (4) When the gas generated at the positive electrode is at the 15.0 mL mark on the pipette 4, remove the sealing bag 1, open the water stop clamp 14, press the sealing bag 1 to discharge the gas at the positive electrode, and at the same time place a wooden stick with sparks at the tip outlet of the tip conduit 8 of the positive electrode;

[0030] (5) Read the scale line where the gas generated by the negative electrode is located, record the data, open the water stop clamp 14, ignite the gas at the needle 7, then press the sealing bag 1 to discharge the remaining gas, and place the hydrogen tester at the needle 7;

[0031] (6) After the experiment is over, put the sealed bag 1 back into the power supply box 9 which has been powered off.

[0032] The gas produced at the negative electrode of the power supply is hydrogen, and the gas produced at the positive electrode is oxygen, and the volume ratio of the produced hydrogen and oxygen is about 2: 1. Water is composed of hydrogen and oxygen.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable water electrolyzer with a battery box, characterized in that: The invention comprises a sealing bag (1), wherein the bottom of the sealing bag (1) is provided with two through holes, and a positive electrode material (2) and a negative electrode material (3) are respectively arranged in the two through holes; two pipettes (4) are arranged inside the sealing bag (1), and the bottom ends of the two pipettes (4) are respectively connected to the positive electrode material (2) and the negative electrode material (3), and the electrode material is a countersunk self-tapping screw; the top ends of the two pipettes (4) are respectively sleeved with a first latex tube (5) and a second latex tube (6), and the first latex tube (5) is connected to the positive electrode material (2) and the negative electrode material (3). The negative electrode material (3) corresponds to the second latex tube (6) and the positive electrode material (2). The first latex tube (5) and the second latex tube (6) pass through the sealing bag (1). The top of the first latex tube (5) is connected to a needle (7), and the top of the second latex tube (6) is connected to a pointed catheter (8); the first latex tube (5) and the second latex tube (6) are provided with a water stop clamp (14); the sealing bag (1) is encapsulated with an electrolyte (16), and a power supply device is provided at the bottom of the sealing bag (1).

2. A portable water electrolyzer with a battery box as claimed in claim 1, characterized in that: The power supply device comprises a battery box (9) and a fixed frame box (10) arranged on the top of the battery box (9); two copper sheets (11) are arranged at the bottom of the fixed frame box (10); two batteries (12) connected in series are installed inside the battery box (9); the power supply device also comprises a screw (15); the screw (15) passes through the copper sheet (11), the fixed frame box (10) and the battery box (9) in sequence, and the screw (15) is fixedly connected to the wires at both ends of the two batteries (12) connected in series; a touch switch button (13) is arranged outside the battery box (9); the touch switch button (13) is connected to the other two wires of the two batteries (12) connected in series; the positive electrode material (2) and the negative electrode material (3) are respectively connected to the two copper sheets (11).

3. A portable water electrolyzer with a battery box as claimed in claim 1, characterized in that: The pipette (4) is engraved with scale lines ranging from 0 mL to 30 mL.

4. A portable water electrolyzer with a battery box as claimed in claim 1, characterized in that: The through hole at the bottom of the sealing bag (1) and the opening at the top of the sealing bag (1) for passing the first latex tube (5) and the second latex tube (6) are both sealed by hot melt adhesive.

5. A portable water electrolyzer with a battery box as claimed in claim 1, characterized in that: The water stop clamp (14) is a Robert clamp.

6. A portable water electrolyzer with a battery box as claimed in claim 1, characterized in that: The sealing bag (1) is an acid and alkali resistant PVC sealing bag.

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