CN111760532A

CN111760532A - Reaction unit for chemistry experiments

Info

Publication number: CN111760532A
Application number: CN202010645940.1A
Authority: CN
Inventors: 刘财印
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-10-13

Abstract

The invention discloses a reaction device for a chemical experiment, which comprises a heating sleeve arranged on a support frame, wherein a bottom layer clamping cavity is formed in the bottom side of the support frame, an evaporation liquid is injected into the bottom layer clamping cavity, a beaker is arranged in the heating sleeve, permanent magnets are symmetrically and fixedly connected to the inner wall of the heating sleeve, a positioning block is fixedly connected to the bottom wall of the beaker, and a stirring mechanism is arranged on the positioning block and comprises a magnetic stirring rod, and a rotating shaft is fixedly inserted in the magnetic stirring rod. According to the reaction liquid stirring device, the evaporated liquid in the bottom layer clamping cavity is quickly evaporated, and generated steam is respectively sprayed out of the two air blowing pipes, so that the heat conduction plate is pushed to rotate clockwise, then the beaker is driven to rotate, and the magnetic stirring rod rotates relative to the beaker under the mutual attraction action of the magnetic stirring rod and the permanent magnet, so that the reaction liquid is stirred, and liquid splashing caused by direct operation of experimenters is avoided.

Description

Reaction unit for chemistry experiments

Technical Field

The invention relates to the technical field of chemical experiments, in particular to a reaction device for chemical experiments.

Background

The chemical experiment operation specifically refers to contents such as taking, storing, instrument connecting assembly and washing of medicines in a laboratory, and the principle and the step that must obey during the operation should strictly follow these steps and carry out the experiment when concrete experiment, uses in the chemical experiment, and the long and thin rod-like simple stirrer of glass, also known as glass rod are used for dissolving with higher speed, promote intersolubility, drainage, dip in liquid, and the reaction rate is accelerated in the stirring in the evaporating dish, especially is the most commonly used in middle school experiment, is indispensable laboratory supplies.

However, in some chemical experiments, some reaction liquid is required to be heated, the heated liquid is splashed when the glass rod is stirred, and some reactants are corrosive, so that the skin of experimenters is injured.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, when a glass rod is used for stirring heated reactants, heated liquid is easy to splash due to improper operation, and skin of experimenters is injured due to corrosive reactants, so that a reaction device for chemical experiments is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a reaction device for chemical experiments comprises a heating sleeve placed on a support frame, wherein a bottom layer clamping cavity is formed in the bottom side of the support frame, evaporation liquid is injected into the bottom layer clamping cavity, a beaker is arranged in the heating sleeve, permanent magnets are symmetrically and fixedly connected to the inner wall of the heating sleeve, a positioning block is fixedly connected to the bottom wall of the beaker, and a stirring mechanism is arranged on the positioning block and comprises a magnetic stirring rod, a rotating shaft is fixedly inserted in the magnetic stirring rod, and the bottom end of the rotating shaft is embedded in the positioning block;

the device comprises a bottom plate placed on an experiment table, wherein a support rod is fixedly connected to the bottom plate, a fixing sleeve is fixedly sleeved on the support rod, and a support frame is fixedly connected to the fixing sleeve;

the beaker is placed on the heat conduction plate, two air blowing pipes are fixedly connected in the heat conduction plate, the directions of air outlets of the two air blowing pipes are opposite, a heat conduction pipe is fixedly connected to the bottom side of the heat conduction plate, the two air blowing pipes are communicated with the heat conduction pipe, and the heat conduction pipe is rotatably connected to the bottom wall of the heating sleeve and is communicated with the bottom clamping cavity.

Preferably, a liquid adding port is formed in the bottom layer clamping cavity, and a sealing plug is connected to the liquid adding port in a threaded mode.

Preferably, the supporting frame is provided with an open slot, and the bottom plate is provided with an alcohol stove.

Preferably, the heat conducting disc, the gas blowing pipe and the heat conducting pipe are all made of metal copper materials.

Compared with the prior art, the invention has the beneficial effects that:

1. place the beaker on heat conduction dish, then in embedding the pivot locating piece, heat heating sleeve when the alcohol heater, heat conduction dish heats the beaker after being heated, the evaporated liquor rapid evaporation of bottom clamp intracavity, produce steam and follow two gas blow pipe blowout respectively, thereby promote heat conduction dish and carry out clockwise rotation, then drive the beaker and rotate, under the inter attraction effect of magnetism stirring rod and permanent magnet, make the relative beaker of magnetism stirring rod take place to rotate, thereby stir reaction liquid, the direct operation of experimenter has been avoided and has been leaded to liquid to splash.

2. Steam fills in the narrow and small cavity between heating sleeve and beaker rapidly from two gas blow pipe blowout backs to form the parcel to the beaker, make the beaker can more evenly be heated, open the sealing plug before the experiment at every turn and can fill into the evaporating liquid again towards the bottom presss from both sides the intracavity, make follow-up experiment operation safer.

Drawings

FIG. 1 is a schematic front view of a reaction apparatus for chemical experiments according to the present invention;

fig. 2 is a schematic top sectional view of the heat conductive plate.

In the figure: 1-bottom plate, 2-support rod, 3-fixing sleeve, 4-support frame, 5-heating sleeve, 6-beaker, 7-heat conducting disk, 8-positioning block, 9-magnetic stirring rod, 10-rotating shaft, 11-permanent magnet, 12-bottom layer clamping cavity, 13-air blowing pipe and 14-heat conducting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 2, a reaction apparatus for chemical experiments includes a heating sleeve 5 placed on a support frame 4, a base plate 1 placed on an experiment table, and a heat conductive plate 7.

Specifically, bottom double-layered chamber 12 has been seted up to support frame 4 bottom side, bottom double-layered intracavity 12 is annotated to have the evaporating liquid, be equipped with on the bottom double-layered chamber 12 and add the liquid mouth, threaded connection has the sealing plug on adding the liquid mouth, it can toward bottom double-layered intracavity 12 refill evaporating liquid to open the sealing plug before the experiment at every turn, be equipped with beaker 6 in the heating sleeve 5, symmetrical fixedly connected with permanent magnet 11 on the heating sleeve 5 inner wall, 6 diapire fixedly connected with locating pieces 8 of beaker, be equipped with rabbling mechanism on the locating piece 8, wherein rabbling mechanism includes magnetic stirring rod 9, the fixed interlude has pivot 10 on the magnetic stirring rod 9, pivot 10 bottom inlay with in the locating piece 8.

Open slot has been seted up on support frame 4, the alcohol heater has been placed on bottom plate 1, the flame that the alcohol heater was lighted and is produced directly passes the open slot and heats heating sleeve 5, fixedly connected with bracing piece 2 on bottom plate 1, fixed cover 3 has been cup jointed to the last fixed of bracing piece 2, support frame 4 fixed connection is on fixed cover 3, beaker 6 is placed on heat conduction dish 7, two gas blow pipes 13 of fixedly connected with in the heat conduction dish 7, the gas outlet opposite direction of two

gas blow pipes

13, 7 bottom side fixed connection heat pipes 14 of heat conduction dish, two gas blow pipes 13 all are linked together with heat pipe 14, heat pipe 14 rotates to be connected at heating sleeve 5 diapire and to be linked together with bottom clamp chamber 12, heat conduction dish 7, gas blow pipe 13, heat pipe 14 is made of metal copper material, the heat conductivity

More specifically, the working principle of the invention is as follows: placing a beaker 6 on a heat conducting disc 7, embedding a rotating shaft 10 into a positioning block 8, heating the heating sleeve 5 when an alcohol stove heats the heating sleeve, heating the beaker 6 after the heat conducting disc 7 is heated, evaporating liquid in a bottom clamping cavity 12 quickly, and spraying generated steam from two air blowing pipes 13 respectively so as to push the heat conducting disc 7 to rotate clockwise and drive the beaker 6 to rotate, so that the magnetic stirring rod 9 rotates relative to the beaker 6 under the mutual attraction action of the magnetic stirring rod 9 and a permanent magnet 11, thereby stirring reaction liquid, avoiding liquid splashing caused by direct operation of experimenters, quickly filling the steam into a narrow cavity between the heating sleeve 5 and the beaker 6 after the steam is sprayed from the two air blowing pipes 13, forming a package on the beaker 6, enabling the beaker 6 to be heated more uniformly, opening a sealing plug before each experiment and refilling the bottom clamping cavity 12 with the evaporating liquid, so that the subsequent experiment operation is safer.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The reaction device for the chemical experiment is characterized by comprising a heating sleeve (5) placed on a support frame (4), wherein a bottom clamping cavity (12) is formed in the bottom side of the support frame (4), an evaporation liquid is injected into the bottom clamping cavity (12), a beaker (6) is arranged in the heating sleeve (5), permanent magnets (11) are symmetrically and fixedly connected to the inner wall of the heating sleeve (5), a positioning block (8) is fixedly connected to the bottom wall of the beaker (6), a stirring mechanism is arranged on the positioning block (8), the stirring mechanism comprises a magnetic stirring rod (9), a rotating shaft (10) is fixedly inserted into the magnetic stirring rod (9), and the bottom end of the rotating shaft (10) is embedded into the positioning block (8);

the device comprises a bottom plate (1) placed on an experiment table, wherein a support rod (2) is fixedly connected to the bottom plate (1), a fixed sleeve (3) is fixedly sleeved on the support rod (2), and a support frame (4) is fixedly connected to the fixed sleeve (3);

heat conduction dish (7), beaker (6) are placed on heat conduction dish (7), two gas blow pipe (13), two of fixedly connected with in heat conduction dish (7) gas outlet opposite direction of gas blow pipe (13), heat conduction dish (7) bottom side fixed connection heat pipe (14), two gas blow pipe (13) all are linked together with heat pipe (14), heat pipe (14) rotate to be connected at heating sleeve (5) diapire and to be linked together with bottom clamp chamber (12).

2. A reaction unit for chemical experiments according to claim 1, wherein a liquid feeding port is provided on the bottom layer cavity (12), and a sealing plug is screwed on the liquid feeding port.

3. The reaction device for chemical experiments as claimed in claim 1, wherein the supporting frame (4) is provided with an open slot, and the bottom plate (1) is provided with an alcohol burner.

4. The reaction device for chemical experiments as claimed in claim 1, wherein the heat conducting plate (7), the gas blowing pipe (13) and the heat conducting pipe (14) are all made of metal copper materials.