A gas preparation device suitable for solid-liquid non-heating reaction

Abstract

The utility model relates to a gas preparation device suitable for solid -liquid non -heating reaction, including pear -shaped liquid separation funnel, cylindrical liquid separation funnel, beaker, iron stand, non -woven bag and copper wire, one side of cylindrical liquid separation funnel is provided with branch pipe mouth, and the upper end is equipped with double -hole rubber plug, the pear -shaped liquid separation funnel is inserted in the cylindrical liquid separation funnel through the double -hole rubber plug, the beaker is located the cylindrical liquid separation funnel below, the non -woven bag is located the cylindrical liquid separation funnel inside, one end of copper wire is connected the non -woven bag, and the other end passes through the double -hole rubber plug, realizes the waste liquid that produces after the experiment rapidly handles, and promotes the experiment convenience.

Description

Technical Field

[0001] This utility model relates to a gas preparation device suitable for solid-liquid non-heating, belonging to the field of experimental equipment technology. Background Technology

[0002] The experiment of producing gases from solids and liquids without heating is an experiment that students in compulsory education must master, and it is widely used in the laboratory to produce gases such as oxygen, carbon dioxide, and hydrogen.

[0003] Patent CN107456926A, entitled "A Push-Pull Controlled Gas Generator," includes a conical flask, a rubber stopper, a syringe, and a glass conduit. The rubber stopper and the mouth of the conical flask are sealed together. One end of the glass conduit passes through the rubber stopper and extends into the conical flask. The syringe, with its needle inserted into the rubber stopper, contains a capped material bottle. The material bottle is connected to one end of a push-pull rod passing through the rubber stopper. Several small holes are formed on the bottle body. This push-pull controlled gas generator is suitable for producing gas from solids and liquids without heating. It allows for real-time control of the reaction, ensures full utilization of reagents, is simple to operate, uses readily available materials, is low in cost, and is easy to promote.

[0004] The invention described above uses a conical flask and a syringe to produce gas through a solid-liquid reaction without heating. However, it does not include a waste liquid treatment device and cannot determine the properties of the produced gas. Utility Model Content

[0005] The purpose of this invention is to provide a gas preparation apparatus suitable for solid-liquid non-heated reactions, so as to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is as follows:

[0007] A gas preparation apparatus suitable for solid-liquid non-heated reactions includes a pear-shaped separating funnel, a cylindrical separating funnel, a beaker, an iron stand, a non-woven bag, and a copper wire. The cylindrical separating funnel has a branch outlet on one side and a double-hole rubber stopper at its upper end. The pear-shaped separating funnel is inserted into the cylindrical separating funnel through the double-hole rubber stopper. The beaker is located below the cylindrical separating funnel. The non-woven bag is located inside the cylindrical separating funnel. One end of the copper wire is connected to the non-woven bag, and the other end passes through the double-hole rubber stopper.

[0008] Furthermore, the branch port of the cylindrical separating funnel is connected to a Y-shaped tube via a rubber tube, and one end of the Y-shaped tube is connected to a T-shaped tube via the rubber tube, while the other end is connected to a straight tube.

[0009] Furthermore, a first water-stop clamp is provided on the rubber tube connecting the Y-shaped tube and the T-shaped tube, and a second water-stop clamp is provided on the rubber tube connecting the Y-shaped tube and the straight guide tube.

[0010] Furthermore, the branch port of the cylindrical separating funnel is connected to the gas collecting bottle via a rubber tube.

[0011] This utility model has the following beneficial effects:

[0012] A beaker is placed below the cylindrical separatory funnel to load and process the waste liquid after the reaction; by setting a branch port on one side to connect different Y-shaped tubes or gas collecting bottles, the generated gas can be verified or collected, improving the convenience of the experiment; the reaction between the solid in the non-woven bag and the liquid in the cylindrical separatory funnel is controlled by lifting and lowering copper wire, further improving the convenience of the experiment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

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

[0016] 1. Pear-shaped separating funnel; 2. Cylindrical separating funnel; 3. Beaker; 4. Iron stand; 5. Non-woven bag; 6. Copper wire; 7. T-shaped tube; 8. Y-shaped tube; 9. Rubber tube; 10. Straight tube; 11. Gas collecting bottle; 12. First stop clamp; 13. Second stop clamp; 14. Double-hole rubber stopper. Detailed Implementation

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

[0018] Example 1:

[0019] like Figure 1 As shown, a gas preparation device suitable for solid-liquid non-heated reactions includes a cylindrical separating funnel 2, with a double-hole rubber stopper 14 plugged at the top of the cylindrical separating funnel 2. A pear-shaped separating funnel 1 is inserted into the cylindrical separating funnel 2 through one hole of the double-hole rubber stopper 14. A copper wire 6 passes through the other hole of the double-hole rubber stopper 14 and is inserted into the cylindrical separating funnel 2. A non-woven bag 5 is placed inside the cylindrical separating funnel 2, with one end of the copper wire 6 tied to the non-woven bag 5. The pear-shaped separating funnel 1 is used for loading... The flow rate of the reaction liquid is controlled by a piston below the pear-shaped separating funnel 1. The non-woven bag 5 is used to hold the reaction solid. The reaction liquid in the pear-shaped separating funnel 1 drips into the cylindrical separating funnel 2 and reacts with the reaction solid in the non-woven bag 5 in the cylindrical separating funnel 2, resulting in a chemical reaction of solid-liquid gas production without heating. A beaker 3 is provided below the cylindrical separating funnel 2. By opening the piston below the cylindrical separating funnel 2, the waste liquid generated after the solid-liquid reaction without heating is discharged into the beaker 3.

[0020] The copper wire 6 controls the rise and fall of the reactant solid, thereby controlling the occurrence and cessation of the reaction. This device is used to demonstrate experimental phenomena to students. Using the copper wire 6 to control the reaction allows students to see the experimental phenomena more intuitively. When a reaction is needed, the copper wire 6 is inserted into the cylindrical separating funnel 2, allowing the reactant solid in the non-woven bag 5 to be immersed in the reactant liquid in the cylindrical separating funnel 2. Bubbles can be observed in the liquid in the cylindrical separating funnel 2, thus verifying that the reactant solid and the reactant liquid react to produce gas. When the reaction needs to be stopped, the copper wire 6 is lifted, allowing... The reaction solid in the non-woven bag 5 is moved away from the reaction liquid in the cylindrical separatory funnel 2, stopping gas preparation. The disappearance of bubbles in the cylindrical separatory funnel 2 indicates the reaction has stopped. The copper wire 6 allows for rapid control of the reaction's occurrence and cessation, enabling students to clearly and intuitively observe experimental phenomena, thus improving the convenience and intuitiveness of the apparatus. Copper, as a relatively stable substance, does not easily react with the reaction liquid to form other compounds that could affect the experiment. However, the copper wire 6 needs to be replaced periodically to prevent copper oxidation into copper oxide, which could react with the reaction liquid to form other substances and affect the experimental results.

[0021] The cylindrical separating funnel 2 has a branch port at one end. The branch port of the cylindrical separating funnel 2 is connected to a Y-shaped tube 8 through a rubber tube 9. The two ends of the Y-shaped tube 8 are connected to a T-shaped tube 7 and a straight tube 10 through rubber tubes 9, respectively. A first water-stopping clamp 12 is provided on the rubber tube 9 connecting the Y-shaped tube 8 and the T-shaped tube 7. A second water-stopping clamp 13 is provided on the rubber tube 9 connecting the Y-shaped tube 8 and the straight tube 10. The first water-stopping clamp 12 and the second water-stopping clamp 13 are used to control the release of the gas produced. The above device is placed on an iron frame 4.

[0022] The specific steps for producing carbon dioxide gas and verifying its properties using the apparatus described in this embodiment are as follows:

[0023] After the above apparatus is fully installed, dilute hydrochloric acid solution is placed in the pear-shaped separating funnel 1, and limestone is placed in the non-woven bag 5.

[0024] Open the piston at the bottom of the pear-shaped separatory funnel 1. Control the rate at which the liquid drips into the cylindrical separatory funnel 2 using the piston at the bottom of the pear-shaped separatory funnel 1. The dilute hydrochloric acid liquid reacts with the limestone inside the non-woven bag 5. The reaction between the solid and liquid inside the non-woven bag 5 is controlled by the copper wire 6. Lower the copper wire 6, and the non-woven bag 5 is immersed in the liquid. The reaction occurs, and bubbles are generated in the liquid inside the cylindrical separatory funnel 2. Lift the copper wire 6, and the non-woven bag 5 is removed from the liquid. The reaction stops, and no more bubbles are generated in the liquid inside the cylindrical separatory funnel 2. The occurrence of the reaction can be seen directly.

[0025] Open the second stop clamp 13 and close the first stop clamp 12. Insert the straight tube 10 into the test tube containing clear limewater. A white precipitate is observed to be produced, verifying that limestone reacts with dilute hydrochloric acid to produce carbon dioxide.

[0026] Open the second stop-water clamp 13 and close the first stop-water clamp 12. Place the straight tube 10 above the dry purple litmus paper and the moist purple litmus paper. The moist purple litmus paper turns red, which verifies that carbon dioxide reacts with water to produce an acidic substance.

[0027] Fix the T-shaped tube 7 to the iron frame 4, close the second water stop clamp 13, open the first water stop clamp 12, place two burning wooden strips at both ends of the T-shaped tube 7, the upper wooden strip continues to burn, and the lower wooden strip stops burning, verifying that carbon dioxide is a non-flammable gas and does not support combustion;

[0028] After the experiment is completed, open the stopcock at the bottom of the cylindrical separatory funnel 2, and the waste liquid generated by the reaction of limestone and dilute hydrochloric acid is discharged into beaker 3, thus completing the waste liquid treatment.

[0029] Example 2:

[0030] like Figure 2 As shown, the gas preparation device for solid-liquid non-heated reactions described in this embodiment differs from that in Embodiment 1 in that:

[0031] The branch port of the cylindrical separating funnel 2 is connected to the gas collecting bottle 11 through a rubber tube 9. The gas collecting bottle 11 is used to collect gas. The rubber tube 9 bends at a certain angle after entering the gas collecting bottle 11. The gas collecting bottle 11 is a bottomless gas collecting bottle 11 and is inverted.

[0032] The apparatus described in this embodiment is used to produce oxygen and to perform experiments on the properties of oxygen.

[0033] Hydrogen peroxide solution is placed in a pear-shaped separatory funnel 1, and solid manganese dioxide (in block form) is placed in a non-woven bag 5. The produced oxygen is guided to a gas collecting bottle 11 through a rubber tube 9 connected to a branch of the cylindrical separatory funnel 2. The part of the rubber tube 9 entering the gas collecting bottle 11 is bent at a certain angle. The gas collecting bottle 11 is inverted with its bottomless side facing upwards, and a small amount of water is placed inside. A red-hot iron wire is placed into the gas collecting bottle 11, and the iron wire is observed to burn violently, producing sparks and a black solid. This completes the oxygen property experiment. The part of the rubber tube 9 entering the gas collecting bottle 11 is bent at a certain angle to prevent combustion products from entering the rubber tube 9 and to prevent the rubber tube 9 from being damaged by the combustion products. A small amount of water is placed inside the gas collecting bottle 11 to prevent the combustion products from damaging the rubber stopper.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas preparation apparatus suitable for solid-liquid non-heating reactions, characterized in that: The apparatus includes a pear-shaped separating funnel, a cylindrical separating funnel, a beaker, an iron stand, a non-woven fabric bag, and a copper wire. The cylindrical separating funnel has a branch outlet on one side and a double-hole rubber stopper at the top. The pear-shaped separating funnel is inserted into the cylindrical separating funnel through the double-hole rubber stopper. The beaker is located below the cylindrical separating funnel. The non-woven fabric bag is located inside the cylindrical separating funnel. One end of the copper wire is connected to the non-woven fabric bag, and the other end passes through the double-hole rubber stopper.

2. The gas preparation apparatus for solid-liquid non-heated reactions as described in claim 1, characterized in that: The branch port of the cylindrical separating funnel is connected to a Y-shaped tube via a rubber tube. One end of the Y-shaped tube is connected to a T-shaped tube via a rubber tube, and the other end is connected to a straight tube.

3. The gas preparation apparatus for solid-liquid non-heated reactions as described in claim 2, characterized in that: A first water-stop clamp is provided on the rubber tube connecting the Y-shaped tube and the T-shaped tube, and a second water-stop clamp is provided on the rubber tube connecting the Y-shaped tube and the straight guide tube.

4. The gas preparation apparatus for solid-liquid non-heated reactions as described in claim 1, characterized in that: The branch port of the cylindrical separating funnel is connected to the gas collecting bottle via a rubber tube.

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