CN201054208Y - Ion exchange film method electrolysis saturation salt water demonstrator - Google Patents

Abstract

The utility model relates to an ion-exchange membrane method electrolysis saturated salt water demonstrator for chemical experiment teaching, which is mainly composed of a transparent reaction tank (1), an ion-exchange membrane (5), a transparent movable cover plate (6), an anode electrode row (8), cathode electrode row (10), hydrogen gas tester (11), chlorine gas tester (12); it is characterized in that: the ion exchange membrane (5) is closely connected with the groove in an embedded manner, and the transparent movable cover plate (6) There are anode electrode row (8), cathode electrode row (10), hydrogen gas tester (11), chlorine gas tester (12) on it. Inject pure water and saturated saline into the anode area and cathode area respectively, and the corresponding chemical information can be given when the electricity is turned on.

Description

Demonstration instrument for ion exchange membrane electrolysis saturated salt water

Technical field

The utility model relates to an ion-exchange membrane method electrolysis saturated salt water demonstrator for chemical experiment teaching.

Background technique

The electrolytic saturated salt water device used in the current chemical experiment teaching uses a piece of ion exchange membrane to separate the solution in the beaker, inserts an electrode on both sides of the ion exchange membrane, and displays the corresponding chemical information after the circuit is connected. Although the structure is simple, the accessories of the experimental device are too scattered and difficult to operate.

Contents of the invention

The purpose of the utility model is to provide an ion-exchange membrane method electrolysis saturated salt water demonstrator with simple and convenient operation, high electrolysis efficiency, and vivid and intuitive phenomena for chemical experiment teaching.

The technical scheme adopted by the utility model to solve its technical problems is: the ion exchange membrane method electrolytic saturated salt water demonstration instrument consists of a transparent reaction tank (1), a left groove (2), a right groove (3), a lower groove ( 4), ion exchange membrane (5), transparent movable cover plate (6), positive terminal (7), anode electrode row (8), negative electrode terminal (9), cathode electrode row (10), hydrogen detector ( 11), chlorine gas detector (12), L-shaped tee pipe (13), barrel-shaped cup (14), pointed elbow (15), barrel-shaped funnel with piston (16), frosted cover (17), T type air vent piston (18); it is characterized in that: the left center of the transparent reaction tank (1) is connected with the left groove (2), the right center of the transparent reaction tank (1) is connected with the right groove (3), and the transparent reaction tank (1) is connected with the right groove (3). ) is connected to the lower groove (4) at the center of the inner bottom, the left frame of the ion exchange membrane (5) is connected to the left groove (2) in an embedded manner, and the right frame of the ion exchange membrane (5) is connected to the right groove (3) in an embedded manner. ), the lower frame of the ion exchange membrane (5) is connected to the lower groove (4) in an embedded manner, and the positive terminal (7) is connected to the upper left of the center of the transparent movable cover (6), and the positive terminal (7) It is connected with the anode electrode row (8) through wires, and the negative terminal (9) is connected to the lower left of the center of the transparent movable cover plate (6), and the negative electrode terminal (9) is connected with the cathode electrode row (10) through wires, and the transparent movable cover A hydrogen gas tester (11) is connected to the upper left of the plate (6), a chlorine gas tester (12) is connected to the lower right of the transparent movable cover plate (6), and an L-shaped tee pipe (13) is connected to the lower end of the chlorine gas tester (12) , the vertical conduit of the L-shaped three-way pipe (13) is inserted in the cathode area of the transparent reaction tank (1), and the L-shaped conduit of the L-shaped three-way pipe (13) is directly inserted into the transparent reaction tank ( 1) The bottom of the anode area.

The utility model has the advantages that: the ion exchange membrane (5) is easy to replace; the row type electrode greatly accelerates the electrolysis reaction speed; the hydrogen gas tester (11) is convenient for checking hydrogen; the chlorine gas tester (12) can not only check chlorine gas in a closed container, Moreover, excess chlorine gas can be absorbed by self-reacted sodium hydroxide through the L-shaped three-way pipe (13), which fully embodies the idea of green chemistry.

Description of drawings

Fig. 1 is a top view of the demonstration instrument for ion-exchange membrane electrolysis of saturated saline;

Fig. 2 is the front view of the demonstration instrument for ion-exchange membrane electrolysis of saturated saline.

The labels in Figure 1 and Figure 2 are explained as follows:

1. Transparent reaction tank, 2. Left groove, 3. Right groove, 4. Lower groove, 5. Ion exchange membrane, 6. Transparent movable cover, 7. Positive terminal, 8. Anode electrode row, 9 .Negative pole terminal, 10. Cathode electrode row, 11. Hydrogen gas detector, 12. Chlorine gas detector, 13. L-type tee pipe, 14. Barrel cup, 15. Pointed elbow, 16. Barrel with piston Funnel, 17. Frosted cover, 18. T-shaped vent piston.

Detailed ways

In Fig. 1, there is a left groove (2) in the center of the left part of the transparent reaction tank (1), a right groove (3) in the center of the right part of the transparent reaction tank (1), and a bottom center in the transparent reaction tank (1). The groove (4), the left frame of the ion exchange membrane (5) is closely connected with the left groove (2) in an embedded manner, and the right frame of the ion exchange membrane (5) is closely connected with the right groove (3) in an embedded manner, The lower frame of the ion exchange membrane (5) is closely connected with the lower groove (4) in an embedded manner, and the positive terminal (7) is connected to the upper left of the center of the transparent movable cover plate (6), and the positive terminal (7) is connected to the The anode electrode row (8) is connected to each other, and the anode electrode row (8) is welded in series with each electrode by a wire, and the lower left side of the center of the transparent movable cover plate (6) is connected with a negative pole terminal post (9), and the negative pole terminal post (9) is connected to the The cathode electrode row (10) is connected, and the cathode electrode row (10) is welded in series by wires, the hydrogen detector (11) is connected to the upper left side of the transparent movable cover plate (6), and the hydrogen detector (11) is connected to the lower right side of the transparent movable cover plate (6). There is a chlorine gas tester (12), and the lower end of the chlorine gas tester (12) is connected with an L-shaped three-way pipe (13), and the vertical conduit of the L-shaped three-way pipe (13) is inserted into the cathode area of the transparent reaction tank (1), and the L-shaped three-way pipe (13) is inserted into the cathode area of the transparent reaction tank (1). The L-shaped conduit of the type tee pipe (13) is directly inserted into the bottom of the anode region of the transparent reaction tank (1) through the transparent movable cover plate (6).

In Fig. 2, the hydrogen tester (11) is made up of barrel-shaped cup (14) and pointed elbow (15), and the pointed mouth of pointed elbow (15) bends to the bottom of barrel-shaped cup (14), and the hydrogen The tester (11) is inserted into the transparent reaction tank (1) through the air duct at the lower end of the barrel-shaped cup (14); the chlorine gas tester (12) is composed of a barrel-shaped funnel with a piston (16) and a frosted cover (17), with a piston The upper end of the barrel-shaped funnel (16) is covered with a frosted lid (17), and a crotch is arranged in the cover, and the lower end of the barrel-shaped funnel (16) is welded with a T-shaped vent piston (18), and the T-shaped vent piston ( 18) An L-shaped tee pipe (13) is welded on the side, and the vertical conduit at the lower end of the T-shaped vent hole piston (18) is inserted into the transparent reaction tank (1).

Claims (3)

1. An ion-exchange membrane method electrolysis saturated salt water demonstration instrument, which consists of a transparent reaction tank (1), a left groove (2), a right groove (3), a lower groove (4), and an ion-exchange membrane (5) , transparent movable cover plate (6), positive pole terminal (7), anode electrode row (8), negative pole terminal post (9), cathode electrode row (10), hydrogen gas detector (11), chlorine gas detector (12) , L-shaped tee pipe (13), barrel-shaped cup (14), pointed elbow (15), barrel-shaped funnel with piston (16), frosted cover (17), and T-shaped vent hole piston (18); It is characterized in that: the left center of the transparent reaction tank (1) is connected to the left groove (2), the right center of the transparent reaction tank (1) is connected to the right groove (3), and the center of the inner bottom of the transparent reaction tank (1) is connected to the lower groove ( 4), the left frame of the ion exchange membrane (5) is connected to the left groove (2) in an embedded manner, the right frame of the ion exchange membrane (5) is connected to the right groove (3) in an embedded manner, and the ion exchange membrane (5) is connected to the right groove (3) in an embedded manner. ) The lower frame is connected to the lower groove (4) in an embedded manner, and the positive terminal (7) is connected to the upper left of the center of the transparent movable cover plate (6), and the positive terminal (7) is connected to the anode electrode row (8) through a wire Connected, the transparent movable cover plate (6) is connected with the negative terminal (9) at the bottom left of the center, the negative terminal (9) is connected with the cathode electrode row (10) through a wire, and the transparent movable cover plate (6) is connected with hydrogen at the upper left The tester (11), the lower right side of the transparent movable cover plate (6) is connected with a chlorine gas tester (12), the lower end of the chlorine gas tester (12) is connected with an L-shaped tee pipe (13), and the L-shaped tee pipe (13) The vertical conduit is inserted in the cathode area of the transparent reaction tank (1), and the L-shaped conduit of the L-shaped tee pipe (13) is directly inserted into the bottom of the transparent reaction tank (1) anode area through the transparent movable cover plate (6). 2. The ion-exchange membrane method electrolysis saturated salt water demonstrator according to claim 1, characterized in that: the hydrogen tester (11) is made up of a barrel-shaped cup (14) and a sharp-mouthed elbow (15), and the sharp-mouthed elbow The pointed mouth of pipe (15) bends toward the bottom of the barrel cup (14), and the hydrogen detector (11) is vertically inserted in the transparent reaction tank (1) by the air guide tube at the lower end of the barrel cup (14). 3. The ion-exchange membrane method electrolysis saturated salt water demonstrator according to claim 1, characterized in that: the chlorine gas tester (12) is composed of a bucket-shaped funnel (16) with a piston and a frosted lid (17), and a bucket with a piston The frosted mouth cover of shaped funnel (16) upper end has frosted lid (17), and a crotch is arranged in the lid, band piston barrel-shaped funnel (16) lower end is welded with T-type vent piston (18), T-type vent piston (18) ) is welded with an L-shaped tee pipe (13), and the vertical conduit at the lower end of the T-shaped air vent piston (18) is inserted into the transparent reaction tank (1).

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