CN-224227233-U - Electrolysis hydrogen production device for laboratory

CN224227233UCN 224227233 UCN224227233 UCN 224227233UCN-224227233-U

Abstract

The utility model relates to the technical field of hydrogen production by water electrolysis, in particular to an electrolytic hydrogen production device for a laboratory, which is used for connecting a glass tube and an electrode of a Huffman electrolyzer; the hydrogen production device comprises an outer cover body and a rubber plug arranged in the outer cover body, wherein the outer wall of a glass tube orifice is provided with an external thread structure, the outer cover body is cylindrical, the top end opening and the bottom end of the outer cover body are closed, the inner wall of the outer cover body is provided with an internal thread structure which is in threaded connection with the glass tube orifice, the rubber plug is tightly pressed into the glass tube orifice in a rotating mode to form sealing connection, the hydrogen production device also comprises an electrode which sequentially penetrates through the bottom end wall of the outer cover body and the rubber plug to extend into the glass tube, and the sealing performance of the glass tube and the electrode interface is remarkably improved through the threaded connection, the clamping assembly and the multi-stage sealing structure.

Inventors

ZHAO HAIYANG
LIN XUEWEN
WEI YIXUAN

Assignees

中国医科大学

Dates

Publication Date: 20260512
Application Date: 20250529

Claims (8)

1. The laboratory electrolytic hydrogen production device is used for connecting a glass tube of the Huffman electrolyzer with an electrode; the hydrogen production device is characterized by comprising an outer cover body and a rubber plug arranged in the outer cover body; The outer wall of the glass tube orifice is provided with an external thread structure, the outer cover body is cylindrical, the top end of the outer cover body is opened, the bottom end of the outer cover body is closed, the inner wall of the outer cover body is provided with an internal thread structure which is in threaded connection with the glass tube orifice, and the rubber plug is tightly pressed into the glass tube orifice in a rotating mode to form sealing connection; The hydrogen production device also comprises an electrode, and the electrode sequentially penetrates through the bottom end wall of the outer cover body and the rubber plug and stretches into the glass tube.
2. The laboratory electrolytic hydrogen production device according to claim 1, wherein the bottom end of the rubber plug is provided with a convex ring structure, the inner wall of the outer cover body correspondingly forms an annular groove, and the convex ring at the bottom end of the rubber plug is embedded into the annular groove of the outer cover body to form a clamping assembly.
3. The laboratory electrolytic hydrogen production device according to claim 1, wherein a gap is left between the bottom end wall of the outer cover and the rubber stopper to form a liquid storage space, and the side wall of the outer cover is provided with a transparent panel corresponding to the liquid storage space.
4. A laboratory electrolytic hydrogen production device according to claim 3, wherein a test paper for detecting leakage of the electrolyte is provided in the liquid storage space.
5. The laboratory electrolytic hydrogen production device according to claim 3, wherein the electrode comprises a metal electrode rod, and a terminal and an electrode head at both ends thereof, the metal electrode rod penetrating through the bottom end wall of the outer cover body and the rubber plug in sequence; The metal electrode rod is connected with the rubber plug in interference fit, and the metal electrode rod is in embedded sealing connection with the bottom end wall of the outer cover body through the sealing ring.
6. The laboratory electrolytic hydrogen production device according to claim 1, wherein the glass tube wall protrudes outwards to form a baffle ring, and the baffle ring is positioned above the glass tube external thread structure; The outer cover body side wall is provided with a chute and a locking block which is arranged in the chute in a sliding way, the locking block is rectangular and forms a slope above the chute, the lower surface of the locking block is contacted with the upper surface of the baffle ring to prevent the outer cover body from descending along the axial direction of the glass tube, and a first spring which is used for pushing the locking block to contact the wall of the glass tube is arranged in the chute.
7. The laboratory electrolytic hydrogen production device according to claim 6, wherein the outer wall of the outer shell is rotatably provided with a ring piece, and the ring piece corresponds to the chute; The ring piece is provided with a rotary rod in a penetrating way, and the rotary rod is provided with an external thread structure; the locking block is provided with a sleeve, and the sleeve is provided with an internal thread structure, and the inner end of the rotary rod faces the sleeve and is coaxially arranged with the sleeve; The outer end of the rotary rod is provided with a rotary cap, a second spring is arranged between the rotary cap and the ring piece, and two ends of the second spring are respectively connected with the ring piece and the rotary cap.
8. The laboratory electrolytic hydrogen production device according to claim 1, wherein the outer cover outer wall is provided with anti-skid patterns distributed along the circumferential direction thereof.

Description

Electrolysis hydrogen production device for laboratory Technical Field The utility model relates to the technical field of hydrogen production by water electrolysis, in particular to an electrolytic hydrogen production device for a laboratory. Background The Huffman electrolyzer is a classical device for producing hydrogen by water electrolysis in a laboratory, and the traditional structure mainly comprises two vertical glass tubes, a bottom communicating tube, a platinum electrode and a rubber plug, wherein the bottom ends of the glass tubes are sealed by the rubber plug, and the electrode is inserted into the glass tubes through the rubber plug and connected with a direct current power supply through a lead. However, this structure has the following significant drawbacks: 1. The sealing and connection reliability is not enough, the rubber plug and the glass tube orifice are in interference fit or simple plug connection, electrolyte leakage is easily caused by rubber aging and electrode rod shaking after long-term use, and even the risk of gas mixing explosion is caused. 2. The leakage detection mechanism is absent, a leakage buffer or detection structure is not arranged in the traditional device, the electrolyte cannot be found in time when leaking, and equipment can be corroded or potential safety hazards can be caused. In view of the above, there is a need to provide a laboratory electrolytic hydrogen production device. Disclosure of utility model Therefore, the utility model aims to provide the electrolytic hydrogen production device for the laboratory, which realizes reliable connection, efficient sealing and leakage early warning of the glass tube and the electrode through structural optimization and improves experimental safety and operation convenience. In view of the above, the present utility model provides a laboratory electrolytic hydrogen production apparatus for connecting a glass tube and an electrode of a huffman electrolyzer; The hydrogen production device comprises an outer cover body and a rubber plug arranged in the outer cover body; The outer wall of the glass tube orifice is provided with an external thread structure, the outer cover body is cylindrical, the top end of the outer cover body is opened, the bottom end of the outer cover body is closed, the inner wall of the outer cover body is provided with an internal thread structure which is in threaded connection with the glass tube orifice, and the rubber plug is tightly pressed into the glass tube orifice in a rotating mode to form sealing connection; The hydrogen production device also comprises an electrode, and the electrode sequentially penetrates through the bottom end wall of the outer cover body and the rubber plug and stretches into the glass tube. Preferably, the bottom of the rubber plug is provided with a convex ring structure, the inner wall of the outer cover body correspondingly forms an annular groove, and the convex ring at the bottom of the rubber plug is embedded into the annular groove of the outer cover body to form a clamping assembly. Preferably, a gap is reserved between the bottom end wall of the outer cover body and the rubber plug to form a liquid storage space, and the side wall of the outer cover body is provided with a transparent panel corresponding to the liquid storage space. Preferably, a test paper for detecting leakage of the electrolyte is arranged in the electrolyte storage space. Preferably, the electrode comprises a metal electrode rod, a wiring terminal and an electrode head which are positioned at two ends of the metal electrode rod, wherein the metal electrode rod sequentially penetrates through the bottom end wall of the outer cover body and the rubber plug; The metal electrode rod is connected with the rubber plug in interference fit, and the metal electrode rod is in embedded sealing connection with the bottom end wall of the outer cover body through the sealing ring. Preferably, the wall of the glass tube protrudes outwards to form a baffle ring, and the baffle ring is positioned above the external thread structure of the glass tube; The outer cover body side wall is provided with a chute and a locking block which is arranged in the chute in a sliding way, the locking block is rectangular and forms a slope above the chute, the lower surface of the locking block is contacted with the upper surface of the baffle ring to prevent the outer cover body from descending along the axial direction of the glass tube, and a first spring which is used for pushing the locking block to contact the wall of the glass tube is arranged in the chute. Preferably, the outer wall of the shell body is rotatably provided with a ring piece, and the ring piece corresponds to the chute; The ring piece is provided with a rotary rod in a penetrating way, and the rotary rod is provided with an external thread structure; the locking block is provided with a sleeve, and the sleeve is provided with an internal thread st