Electric heating device for chemical experiment

Abstract

The utility model discloses an electric heating device for chemical experiments, which relates to the technical field of chemical experiments and comprises an electric heating furnace, a heat gathering cover, a heat gathering ring and a Y-shaped hoop, the heat gathering cover is a circular ring with a sealed top end, a top plate of the heat gathering cover is provided with a top hole, the side wall of the heat gathering cover is symmetrically provided with two side holes, the two side holes are concentrically arranged, and the Y-shaped hoop is arranged on the top plate of the heat gathering cover. The distance from the circle center of the side hole to a heating disc of the electrothermal furnace is smaller than the radius of the side hole; an observation hole is further formed in the side wall of the heat gathering cover, the axis of the observation hole is perpendicular to the axis of the side hole, the heat gathering ring is a circular ring with the two ends open, and the inner diameter of the heat gathering cover and the inner diameter of the heat gathering ring are the same as the outer diameter of a heating disc of the electric heating furnace. According to the electric heating device for the chemical experiment, a traditional alcohol lamp is replaced with an electric heating mode, so that environmental pollution and potential safety hazards caused by combustion of organic fuel are avoided, and a cleaner and safer working environment is provided for experimenters.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical experiment technical field, concretely is a chemical experiment electric heating device. BACKGROUND

[0002] Chemical experiment is an important component of scientific research, through the reaction, separation, purification etc.

[0003] In the existing chemical experiment, usually use alcohol lamp as heating equipment, but alcohol is organic fuel, alcohol burns can release a large amount of carbon dioxide and not completely combusted volatile harmful substances, cause harm to the environment and human health, and the glass lamp body of alcohol lamp is easy to break, improper use can lead to fire, there is big security risk.

[0004] Therefore, it is necessary to provide a chemical experiment electric heating device to solve the above problems. UTILITY MODEL CONTENT

[0005] The technical problem solved by the utility model is to provide a chemical experiment electric heating device to solve the problem that the existing chemical experiment uses alcohol lamp as heating equipment, alcohol is organic fuel, alcohol burns can release a large amount of carbon dioxide and not completely combusted volatile harmful substances, cause harm to the environment and human health, and the glass lamp body of alcohol lamp is easy to break, improper use can lead to fire, there is big security risk.

[0006] Technical scheme: in order to realize the above object, the utility model is realized by the following technical scheme: a chemical experiment electric heating device, including electric heating furnace, still including heat collecting cover, heat collecting ring and Y type clamp, the heat collecting cover is the circular ring of top end sealing, is equipped with top hole on the top plate of heat collecting cover, is equipped with two side holes on the symmetry of the lateral wall of heat collecting cover, two side holes are concentrically arranged, and the distance from the center of side hole to the heating disc of electric heating furnace is less than the radius of side hole;Still be equipped with observation hole on the lateral wall of heat collecting cover, and the axis of observation hole is perpendicular to the axis of side hole, the heat collecting ring is the circular ring of two ends opening, and the inner diameter of heat collecting cover and heat collecting ring is same with the outer diameter of the heating disc of electric heating furnace;The Y type clamp includes vertical rod and two inclined rods fixedly installed on the symmetry of vertical rod, the tail end of two inclined rods is inwardly bent to form bending segment I, two bending segments I are symmetrically arranged relative to vertical rod, the tail end of two bending segments I is inwardly bent to have bending segment II, four supporting legs of electric heating furnace are clamped in the enclosed area composed of inclined rod, bending segment I and bending segment II.

[0007] Preferably, the inner fixing sleeve at the lower end of the heat collecting cover and the heat collecting ring is provided with a fixing ring, and the distance between the heat collecting cover and the fixing ring and the distance between the heat collecting ring and the fixing ring bottom surface are both less than the thickness of the heat disc of the electric heating furnace.

[0008] Preferably, the outer diameter of the heat collecting cover and the heat collecting ring is 10.2 cm, the inner diameter is 10 cm, the cylinder height of the heat collecting cover is 5 cm, the cylinder height of the heat collecting ring is 4 cm, the top hole is a circular hole with a diameter of 2.5 cm, and the diameter of the observation hole and the two side holes is 3 cm.

[0009] Beneficial effects: compared with the prior art, the chemical experiment electric heating device has a unique structure and is convenient to use, the device uses an electric heating mode to replace a traditional alcohol lamp, thereby avoiding environmental pollution and safety hazards caused by organic fuel combustion, and providing a cleaner and safer working environment for experimenters; in addition, the device is designed in cooperation of the heat collecting cover, the heat collecting ring and the Y-shaped clamp, so that it can adapt to various different shapes and types of vessels in chemical experiments, no matter whether it is a flat-bottom vessel, a tubular vessel or a round-bottom flask, a suitable heating mode can be found, and the convenience and efficiency of experiments are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 is a perspective view of the structure of the utility model;

[0011] Fig. 2 is a bottom view of the structure of the utility model;

[0012] Fig. 3 is a sectional view of the heat collecting cover structure of the utility model.

[0013] In the figure: 1, electric heating furnace; 2, heat collecting cover; 3, top hole; 4, side hole; 5, observation hole; 6, heat collecting ring; 7, Y-shaped clamp; 8, fixing ring. DETAILED DESCRIPTION

[0014] The utility model is further described below in combination with the drawings and examples.

[0015] Example 1: the example 1 provides a chemical experiment electric heating device, and the structure is unique, please refer to Figs. 1-3As shown, including electric furnace 1, electric furnace 1 is the existing equipment, product model is WY-018, also includes heat gathering cover 2, heat gathering ring 6 and Y type clamp 7, heat gathering cover 2 is the top end sealing ring, the top plate of heat gathering cover 2 is provided with top hole 3, two side holes 4 are symmetrically provided on the side wall of heat gathering cover 2, two side holes 4 are concentrically arranged, and the distance from the center of side hole 4 to the heating disc of electric furnace 1 is less than the radius of side hole 4;Observation hole 5 is also provided on the side wall of heat gathering cover 2, and the axis of observation hole 5 is perpendicular to the axis of side hole 4, heat gathering ring 6 is a ring with open ends, and the inner diameter of heat gathering cover 2 and heat gathering ring 6 is the same as the outer diameter of the heating disc of electric furnace 1.

[0016] The outer diameter of heat gathering cover 2 and heat gathering ring 6 is 10.2 cm, and the inner diameter is 10 cm, and the cylinder height of heat gathering cover 2 is 5 cm, the cylinder height of heat gathering ring 6 is 4 cm, the top hole 3 is a circular hole with a diameter of 2.5 cm, and the diameter of the observation hole 5 and the two side holes 4 is 3 cm;Y type clamp 7 includes vertical rod 71 and two inclined rods 72 symmetrically fixed on vertical rod 71, the tail end of two inclined rods 72 is inwardly bent to form bending segment I 73, two bending segment I 73 are symmetrically arranged relative to vertical rod 71, the tail end of two bending segment I 73 is inwardly bent to have bending segment II 74, and the four supporting legs of electric furnace 1 are clamped in the enclosed area composed of inclined rod 72, bending segment I 73 and bending segment II 74.

[0017] Working principle: because the types of chemical experiment instruments are various, the device can assemble the corresponding instrument combination according to the requirements of the experimental project, the electric furnace 1 can be placed horizontally on the experiment table or the Y type clamp 7 can be clamped on the appropriate part of the iron column of the iron stand through the iron clamp, and then the four supporting legs of electric furnace 1 are vertically clamped in Y type clamp 7;There are approximately three conditions for chemical experiments that require heat source to heat chemical reaction.

[0018] Firstly, when heating beaker, flask, conical flask, curved neck flask, evaporation dish, water bath, sand bath and other flat-bottomed vessels, these vessels can be directly placed on the heating disc of electric furnace 1 for heating.

[0019] Secondly, when heating glass test tube, hard glass tube, ceramic tube, metal tube and other tubes, heat gathering cover 2 can be buckled on the heating disc of electric furnace 1, when heating test tube, the test tube is directly inserted into the top hole 3 for heating operation, when heating hard glass tube, ceramic tube and metal tube, they can be directly inserted into two side holes 4 for heating operation, and the heating condition can be observed through observation hole 5.

[0020] Thirdly, when heating round-bottomed flask and other round-bottomed vessels, heat gathering ring 6 can be buckled on the heating disc of electric furnace 1, and the round-bottomed flask is placed in heat gathering ring 6 for heating, so as to avoid the round-bottomed flask from tilting.

[0021] Example 2 differs from example 1 in that, as shown in Fig. 3 In order to solve the problem, the fixed ring 8 is sleeved on the inside of the lower end of the heat cover 2 and the heat ring 6, and the distance between the bottom surface of the heat cover 2 and the fixed ring 8 and the bottom surface of the heat ring 6 and the fixed ring 8 is less than the thickness of the heat disc of the electric furnace 1. Through the arrangement of the fixed ring 8, when the heat cover 2 and the heat ring 6 are buckled on the heat disc of the electric furnace 1, the lower end of the heat cover 2 and the heat ring 6 will not be in contact with the shell of the electric furnace 1, so as to avoid the heat of the heat disc of the electric furnace 1 being transmitted to the shell of the electric furnace 1 through the heat cover 2 and the heat ring 6.

[0022] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chemical laboratory electric heating device comprising an electric heating furnace (1), characterized in that: Also include the heat collecting cover (2), heat collecting ring (6) and Y type clamp (7), the heat collecting cover (2) is the top end sealed annular, the top plate of heat collecting cover (2) is provided with top hole (3), the sidewall of heat collecting cover (2) is provided with two symmetrical side holes (4), two side holes (4) are concentrically arranged, and the distance from the center of side hole (4) to the heating disc of electric furnace (1) is less than the radius of side hole (4);The sidewall of heat collecting cover (2) is also provided with observation hole (5), and the axis of observation hole (5) is perpendicular to the axis of side hole (4), heat collecting ring (6) is the annular with two open ends, and the inner diameter of heat collecting cover (2) and heat collecting ring (6) is same with the outer diameter of heating disc of electric furnace (1);The Y type clamp (7) includes vertical rod (71) and two inclined rods (72) symmetrically fixed on vertical rod (71), the tail end of two inclined rods (72) is inwardly bent to form bending segment I (73), two bending segment I (73) are symmetrically arranged relative to vertical rod (71), the tail end of two bending segment I (73) is inwardly bent to have bending segment II (74), four supporting legs of electric furnace (1) are clamped in the enclosed area composed of inclined rod (72), bending segment I (73) and bending segment II (74).

2. The chemical experiment electric heating device according to claim 1, characterized in that: The inner part of the lower end of heat collecting cover (2) and heat collecting ring (6) is fixedly sleeved with fixing ring (8), and the distance between heat collecting cover (2) and fixing ring (8) and the bottom surface of heat collecting ring (6) and fixing ring (8) is less than the thickness of heating disc of electric furnace (1).

3. The chemical experiment electric heating device according to claim 1, characterized in that: The outer diameter of heat collecting cover (2) and heat collecting ring (6) is 10.2cm, and the inner diameter is 10cm, the cylinder height of heat collecting cover (2) is 5cm, the cylinder height of heat collecting ring (6) is 4cm, the top hole (3) is a circular hole with a diameter of 2.5cm, and the diameter of observation hole (5) and two side holes (4) is 3cm.

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