Safe laboratory hydrogen production device
By controlling the contact between zinc particles and dilute sulfuric acid through a rotating structure and elastically fixing the gas guide tube, the safety risk of hydrogen leakage in the laboratory hydrogen production device is resolved, and safe hydrogen production is achieved.
Patent Information
- Application Number
- CN202422866592.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When a laboratory hydrogen production device produces hydrogen, the chemical reaction cannot be stopped once it starts. In the event of a leak, the continued generation and leakage of hydrogen may cause safety risks, especially explosion accidents.
A safe laboratory hydrogen production device was designed. The contact between zinc particles and dilute sulfuric acid was controlled by the rotation structure of the threaded rod and threaded sleeve, and the elastic reset structure of the rubber block and clamp block of the air guide tube was used to interrupt the reaction and prevent leakage.
It effectively controls the progress and interruption of chemical reactions, prevents hydrogen leakage, and improves the safety of hydrogen preparation in the laboratory.
Smart Images
Figure CN223445240U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hydrogen production device technical field, and specifically relates to a safe laboratory hydrogen production device. BACKGROUND
[0002] Laboratory hydrogen production device is the equipment for preparing hydrogen in laboratory environment. The working principle of laboratory hydrogen production device is mainly based on chemical reaction. Taking zinc and dilute sulfuric acid reaction as an example, the reaction can be carried out at room temperature, and zinc sulfate and hydrogen are generated. Hydrogen is led out through the gas guide pipe and is collected in the collecting device.
[0003] In the process of preparing hydrogen, there is a potential safety problem: once zinc particles are put into dilute sulfuric acid, they will immediately start the reaction and continue until one of the reactants (zinc particles or dilute sulfuric acid) is completely consumed due to the spontaneity of the chemical reaction. In this process, hydrogen is continuously generated and released, and enters the collecting device through the gas guide pipe. However, if a gas leakage occurs during the reaction, such as a loose connection of the gas guide pipe or a damage of the collecting device, hydrogen may leak into the laboratory environment.
[0004] Since the chemical reaction cannot be terminated halfway through simple means (such as closing the valve) once it starts, the continuous generation and leakage of hydrogen during gas leakage may exacerbate the safety risk. The accumulation of hydrogen may form an explosive mixture, which may cause an explosion accident once it encounters a ignition source such as a fire or static electricity spark, causing serious injury and loss to laboratory personnel and equipment. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a safe laboratory hydrogen production device, which aims to solve the problem that once zinc particles are put into dilute sulfuric acid, they will immediately start the reaction and continue until one of the reactants (zinc particles or dilute sulfuric acid) is completely consumed, and in this process, hydrogen is continuously generated and released, and if a gas leakage occurs during the reaction, the chemical reaction of the prepared gas cannot be terminated halfway, so the continuous generation and leakage of hydrogen during gas leakage may exacerbate the safety risk.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a safe laboratory hydrogen production device, comprising a spherical reaction bottle, a gas guide pipe is connected to the side bottle opening of the spherical reaction bottle, the end of the gas guide pipe is located in the interior of a water tank, an iron stand is arranged on one side of the water tank, a clamping assembly is installed on the surface of the iron stand, and a gas storage test tube is clamped in the interior of the clamping assembly.
[0007] The surface of the bottle plug is embeddedly installed with a sealing bearing, the inside of the sealing bearing is penetratedly connected with a threaded rod, the surface of the threaded rod is sleeved with a threaded sleeve, the threaded sleeve is penetratedly connected with the surface of a threaded cover, the threaded cover is sleeved with a sieve cylinder, the surface of the sieve cylinder is connected with a convex thread, and the bottom side of the bottle plug is connected with a first guide rod.
[0008] In order to limit the movement direction of the sliding seat, as a safety type laboratory hydrogen production device, preferably, the sliding seat is provided with two groups, and one group of guide sliding blocks and guide sliding grooves are arranged at both ends of the sliding seat.
[0009] In order to realize the height adjustment of the sieve cylinder, as a safety type laboratory hydrogen production device, preferably, the threaded rod and the threaded sleeve are threadedly connected.
[0010] In order to install the sieve cylinder at the bottom side of the threaded cover, as a safety type laboratory hydrogen production device, preferably, the sieve cylinder and the convex thread are an integral structure, and the sieve cylinder and the threaded cover are threadedly connected through the convex thread.
[0011] In order to limit the movement direction of the threaded cover, as a safety type laboratory hydrogen production device, preferably, the first guide rod penetrates the surface of the threaded cover, and the threaded cover and the first guide rod are slidably connected.
[0012] As a safety type laboratory hydrogen production device, preferably, the inner wall of the water tank is connected with a fixing seat, a guide circular hole is formed in the side surface of the fixing seat, a second guide rod penetrates the inside of the guide circular hole, the end of the second guide rod is connected with a clamping block, a spring sheet is connected between the clamping block and the fixing seat, and a rubber block is connected to the side surface of the clamping block.
[0013] As a safety type laboratory hydrogen production device, preferably, the guide circular hole, the second guide rod, the clamping block and the rubber block are symmetrically arranged on the inner wall of the fixing seat, and the second guide rod and the fixing seat are slidably connected through the guide circular hole.
[0014] As a safety type laboratory hydrogen production device, preferably, the spring sheet is made of beryllium copper, and the clamping block and the spring sheet form an elastic reset structure.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] When the threaded rod rotates, the threaded sleeve moves longitudinally, the threaded sleeve can drive the threaded cover to move longitudinally, the threaded cover can drive the sieve cylinder to move longitudinally, and the sieve cylinder can drive the zinc particles to move longitudinally, so that the occurrence and interruption of the chemical reaction can be controlled by controlling whether the zinc particles contact the dilute sulfuric acid, so that the reaction can be interrupted in time when gas leakage occurs, thereby improving the safety of laboratory preparation of hydrogen gas.
[0017] When the bend of the air guide pipe moves to the surface of the rubber block, the rubber block is extruded to extrude the clamping block, and the clamping block is extruded to compress the elastic sheet. When the bend of the air guide pipe moves to the lower side of the rubber block, the elastic sheet can extrude the clamping block to reset by its elasticity, and the clamping block can fix the position of the bend of the air guide pipe through the rubber block after resetting, so that the air guide pipe can be prevented from moving during the experiment to cause gas leakage. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application. In the drawings:
[0019] Figure 1 The overall assembly structure schematic diagram provided for the embodiment of the present application.
[0020] Figure 2 The spherical reaction bottle structure schematic diagram provided for the embodiment of the present application.
[0021] Figure 3 The internal structure of the spherical reaction bottle provided for the embodiment of the present application is provided.
[0022] Figure 4 The sieve cylinder installation structure provided for the embodiment of the present application is provided.
[0023] Figure 5 The air guide pipe fixing structure schematic diagram provided for the embodiment of the present application is provided.
[0024] Figure 6 The fixing structure schematic diagram provided for the embodiment of the present application is provided.
[0025] Figure 7 The fixing structure schematic diagram provided for the embodiment of the present application is provided.
[0026] In the figure: 1, spherical reaction bottle; 2, gas guide pipe; 3, water tank; 4, iron stand; 5, clamping assembly; 6, gas storage test tube; 7, bottle plug; 8, sealing bearing; 9, threaded rod; 10, threaded sleeve; 11, sieve cylinder; 12, convex thread; 13, threaded cover; 14, first guide rod; 15, fixed seat; 16, guide round hole; 17, second guide rod; 18, clamping block; 19, elastic sheet; 20, rubber block. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0028] Please refer to Figures 1-7 The utility model provides the following technical scheme: a safe laboratory hydrogen production device, including spherical reaction bottle 1, the side bottle mouth of spherical reaction bottle 1 is connected with gas guide pipe 2, and the end of gas guide pipe 2 is located in the inside of water tank 3, one side of water tank 3 is provided with iron stand 4, and the surface of iron stand 4 is installed with clamping assembly 5, and the inside of clamping assembly 5 clamps gas storage test tube 6;
[0029] The main bottle mouth of spherical reaction bottle 1 is connected with bottle plug 7, sealing bearing 8 is embedded on the surface of bottle plug 7, threaded rod 9 is connected through the inside of sealing bearing 8, threaded sleeve 10 is sleeved on the surface of threaded rod 9, threaded sleeve 10 is connected on the surface of threaded cover 13, threaded cover 13 is sleeved on the top of sieve cylinder 11, convex thread 12 is connected on the surface of sieve cylinder 11, and the bottom side of bottle plug 7 is connected with first guide rod 14.
[0030] Firstly, water is injected into the inside of water tank 3, then gas storage test tube 6 is filled with water, then gas storage test tube 6 is inverted and clamped by the clamping assembly 5 of iron stand 4, then the opening of gas storage test tube 6 is moved to the end of gas guide pipe 2 in water, then dilute sulfuric acid is injected into the inside of spherical reaction bottle 1, and zinc particles are added into the inside of spherical reaction bottle 1, hydrogen gas is generated by the chemical reaction of zinc particles and dilute sulfuric acid, the generated hydrogen gas can be sprayed out through the end of gas guide pipe 2 and fall into the inside of gas storage test tube 6, so that the water in the inside of gas storage test tube 6 can be discharged, so that hydrogen gas can be stored in gas storage test tube 6.
[0031] Preferably, threaded rod 9 and bottle plug 7 form a rotating structure through sealing bearing 8, and threaded rod 9 and threaded sleeve 10 are screw connected.
[0032] In specific use, the threaded rod 9 rotates to drive the threaded sleeve 10 to move longitudinally, the threaded sleeve 10 can drive the threaded cover 13 to move longitudinally, the threaded cover 13 can drive the screen cylinder 11 to move longitudinally, so that the chemical reaction can be controlled by controlling whether the zinc particles in the screen cylinder 11 contact with dilute sulfuric acid.
[0033] Preferably, the screen cylinder 11 and the convex thread 12 are integrated, and the screen cylinder 11 is threadedly connected between the convex thread 12 and the threaded cover 13.
[0034] In specific use, the screen cylinder 11 can be threadedly connected with the threaded cover 13 through the convex thread 12, so that the screen cylinder 11 can be installed at the bottom side of the threaded cover 13.
[0035] Preferably, the first guide rod 14 penetrates the surface of the threaded cover 13, and the threaded cover 13 and the first guide rod 14 are in sliding connection.
[0036] In specific use, the threaded cover 13 can slide on the surface of the first guide rod 14 when subjected to a force, so that the movement direction of the threaded cover 13 can be limited.
[0037] Preferably, the inner wall of the water tank 3 is connected with a fixing seat 15, the side surface of the fixing seat 15 is provided with a guide round hole 16, the second guide rod 17 penetrates the inside of the guide round hole 16, the end of the second guide rod 17 is connected with a clamping block 18, the clamping block 18 and the fixing seat 15 are connected with an elastic sheet 19, and the side surface of the clamping block 18 is connected with a rubber block 20.
[0038] Preferably, the guide round hole 16, the second guide rod 17, the clamping block 18 and the rubber block 20 are symmetrically arranged on the inner wall of the fixing seat 15, and the second guide rod 17 and the fixing seat 15 are in sliding connection through the guide round hole 16.
[0039] In specific use, the clamping block 18 can drive the second guide rod 17 to slide in the guide round hole 16 when subjected to a force, so that the movement direction of the clamping block 18 can be limited.
[0040] Preferably, the elastic sheet 19 is made of beryllium copper, and the clamping block 18 and the elastic sheet 19 form an elastic reset structure.
[0041] In specific use, when the bent part of the air guide pipe 2 moves to the surface of the rubber block 20, the elastic sheet 19 can be compressed by the clamping block 18, and when the bent part of the air guide pipe 2 moves to the lower side of the rubber block 20, the elastic sheet 19 can be reset by extruding the clamping block 18 by itself, so that the position of the bent part of the air guide pipe 2 can be fixed.
[0042] The utility model discloses a specific working principle when using: when using, first, inject dilute sulfuric acid to the inside of spherical reaction bottle 1, then add zinc particles to the inside of sieve cylinder 11, then sieve cylinder 11 is connected with screw cap 13 through male screw 12 and is connected in screw, so can connect sieve cylinder 11 at the bottom side of screw cap 13, then fix cork 7 at the main bottle mouth of spherical reaction bottle 1, when needing preparation hydrogen, can rotate threaded rod 9, and threaded rod 9 rotates and drives threaded sleeve 10 to move downward, and threaded sleeve 10 moves downward and can drive screw cap 13 to move downward, and screw cap 13 moves downward and can drive sieve cylinder 11 to move downward, and when sieve cylinder 11 drives zinc particles to move downward to the inside of dilute sulfuric acid, hydrogen can be prepared through the chemical reaction of zinc particles and dilute sulfuric acid, when gas leakage occurs, threaded rod 9 can be reversely rotated, and threaded rod 9 reversely rotates and drives threaded sleeve 10 to move upward, and threaded sleeve 10 moves upward and can drive screw cap 13 to move upward, and screw cap 13 moves upward and can drive sieve cylinder 11 to move upward, and when sieve cylinder 11 drives zinc particles to move upward above dilute sulfuric acid liquid level, the chemical reaction of zinc particles and dilute sulfuric acid can be interrupted at this time;
[0043] When using, the gas guide pipe 2 can be first extruded downward between the two clamping blocks 18, when the bent part of the gas guide pipe 2 moves to the surface of the rubber block 20, the rubber block 20 is extruded at this time to extrude the clamping block 18, the clamping block 18 is extruded to compress the elastic sheet 19, when the bent part of the gas guide pipe 2 moves to the lower side of the rubber block 20, the elastic sheet 19 can reset the clamping block 18 by extruding the clamping block 18 by itself at this time, and the clamping block 18 can fix the position of the bent part of the gas guide pipe 2 after resetting through the rubber block 20.
[0044] The device fully considers the safety and stability of use, can realize safe preparation of laboratory hydrogen, and greatly improves work safety.
[0045] Finally, it should be noted that: the above only for preferred embodiment of the utility model has been described, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A safe laboratory hydrogen production device, comprising a spherical reaction bottle (1), characterized in that: The side opening of the spherical reaction bottle (1) is connected to an air guide tube (2), the end of the air guide tube (2) is located inside a water tank (3), an iron stand (4) is provided on one side of the water tank (3), a clamping assembly (5) is installed on the surface of the iron stand (4), and a gas storage test tube (6) is clamped inside the clamping assembly (5); The main bottle mouth of the spherical reaction bottle (1) is connected to a bottle stopper (7), a sealing bearing (8) is embedded and installed on the surface of the bottle stopper (7), a threaded rod (9) is connected to the inside of the sealing bearing (8), a threaded sleeve (10) is sleeved on the surface of the threaded rod (9), the threaded sleeve (10) is connected to the surface of the threaded cover (13), the threaded cover (13) is sleeved on the top of the screen cylinder (11), the surface of the screen cylinder (11) is connected with a convex thread (12), and the bottom side of the bottle stopper (7) is connected to a first guide rod (14).
2. A safe laboratory hydrogen production device according to claim 1, characterized in that: The threaded rod (9) forms a rotating structure with the bottle stopper (7) through the sealed bearing (8), and the threaded rod (9) and the threaded sleeve (10) are threadedly connected.
3. A safe laboratory hydrogen production device according to claim 2, characterized in that: The sieve drum (11) and the convex thread (12) are an integral structure, and the sieve drum (11) is threadedly connected to the threaded cover (13) via the convex thread (12).
4. A safe laboratory hydrogen production device according to claim 3, characterized in that: The first guide rod (14) passes through the surface of the threaded cover (13), and the threaded cover (13) and the first guide rod (14) are in sliding connection.
5. A safe laboratory hydrogen production device according to claim 1, characterized in that: The inner wall of the water tank (3) is connected to a fixing seat (15), a guide circular hole (16) is formed on the side surface of the fixing seat (15), a second guide rod (17) passes through the inside of the guide circular hole (16), a clamping block (18) is connected to the end of the second guide rod (17), a spring piece (19) is connected between the clamping block (18) and the fixing seat (15), and a rubber block (20) is connected to the side surface of the clamping block (18).
6. A safe laboratory hydrogen production device according to claim 5, characterized in that: The guide circular hole (16), the second guide rod (17), the clamping block (18) and the rubber block (20) are symmetrically arranged on the inner wall of the fixing seat (15), and the second guide rod (17) is slidably connected to the fixing seat (15) through the guide circular hole (16).
7. A safe laboratory hydrogen production device according to claim 6, characterized in that: The spring piece (19) is made of beryllium copper, and the clamping block (18) and the spring piece (19) form an elastic reset structure.