Unsaturated resin experimental device

Abstract

The utility model relates to the technical field of chemical experiments, and discloses an unsaturated polyester resin experimental device which comprises a four-neck flask, a fractionation assembly is arranged at a bottle opening of the four-neck flask, the fractionation assembly comprises an inner tube, the inner tube is connected with the bottle opening of the four-neck flask in an inserted mode, two sets of symmetrically-arranged separation nets are fixedly connected in the inner tube, and the separation nets are connected with the inner tube in an inserted mode. A metal sheet is filled between the two sets of separation nets, the metal sheet is in a magnetic spring shape, five circles of threads are arranged, the length of the metal sheet is 2-3 cm, a sleeve is fixedly connected to the outer wall of the inner pipe, a water inlet and a water outlet are formed in the outer wall of the sleeve, and a connecting pipe is fixedly connected to the outer wall of the inner pipe. According to the utility model, the mixing and separating efficiency of fluid is improved through the rolling movement of the metal sheet, so that moisture and raw materials in unsaturated polyester resin can be quickly separated, and the efficient separation process not only shortens the experiment time, but also improves the purity of a reaction product.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical experiments, in particular to an unsaturated resin experimental device. Background Art

[0002] The unsaturated resin production process requires the use of alcohols and acids, which generate large amounts of water. Since the unsaturated resin reaction is reversible, the generated water must be drained away promptly without losing the raw alcohol and acid. Therefore, maintaining efficient separation within a short distance at all times throughout the production reaction experiment is crucial to ensure accurate unsaturated resin experimental data.

[0003] The existing glass condensers used in laboratory production of unsaturated resins are long and have poor separation performance, resulting in a large amount of unsaturated resin raw materials being lost as water evaporates, causing distortion of the entire formula data. Therefore, an unsaturated resin experimental device is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above shortcomings, the utility model provides an unsaturated resin experimental device, which aims to improve the glass condenser for producing unsaturated resin in the existing technology, which has a long length and poor separation effect, resulting in a large amount of unsaturated resin raw materials being lost as the water evaporates, causing the entire formula data to be distorted.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an unsaturated resin experimental device, comprising a four-necked flask, a distillation assembly is provided at the bottle mouth of the four-necked flask, the distillation assembly includes an inner tube, the inner tube is plugged into the bottle mouth of the four-necked flask, two groups of symmetrically arranged partitions are fixedly connected to the interior of the inner tube, metal sheets are filled between the two groups of the partitions, the outer wall of the inner tube is fixedly connected to a sleeve, and the outer wall of the inner tube is fixedly connected to a connecting tube.

[0006] As a further description of the above technical solution:

[0007] The metal sheet is in the shape of a magnetic spring, and the thread is set to five turns with a length of 2-3CM.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the sleeve is provided with a water inlet and a water outlet.

[0010] As a further description of the above technical solution:

[0011] The top end of the inner tube is provided with an insertion hole, and a thermometer is inserted into the insertion hole.

[0012] As a further description of the above technical solution:

[0013] The end of the connecting pipe is plugged with a spherical condenser.

[0014] As a further description of the above technical solution:

[0015] The height of the inner tube is 15CM.

[0016] As a further description of the above technical solution:

[0017] The end of the spherical condenser is sleeved with a bent pipe, and the bottom end of the bent pipe is sleeved with a collecting bottle.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the present invention, the tumbling motion of the metal sheet improves the mixing and separation efficiency of the fluid, so that the moisture and raw materials in the unsaturated resin can be quickly separated. This efficient separation process not only shortens the experimental time, but also improves the purity of the reaction product.

[0020] 2. In the present invention, the temperature during the reaction process can be monitored in real time by combining the thermometer with the sleeve, and the temperature can be adjusted by the coolant to ensure that the reaction is carried out under appropriate conditions, which helps to improve the stability and safety of the reaction and reduce the risk of overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an unsaturated resin experimental device proposed in the utility model;

[0022] Figure 2 This is a schematic cross-sectional structure diagram of a fractionation component of an unsaturated resin experimental device proposed in the present invention;

[0023] Figure 3 This is a schematic diagram of the enlarged structure of point A of an unsaturated resin experimental device proposed by the present invention.

[0024] Legend:

[0025] 1. Four-necked flask; 2. Fractionation assembly; 21. Inner tube; 22. Spacer; 23. Metal sheet; 24. Jack; 25. Thermometer; 26. Sleeve; 27. Water inlet; 28. Water outlet; 29. Connecting tube; 3. Spherical condenser; 4. Bend tube; 5. Collecting flask. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 - Figure 3 The utility model provides an embodiment: an unsaturated resin experimental device, including a four-necked flask 1, which is the main reactor of the experiment and provides sufficient space for chemical reactions. A distillation component 2 is provided at the mouth of the four-necked flask 1. The distillation component 2 is located at the mouth of the four-necked flask 1 and is mainly used to separate and condense the steam or gas produced by the reaction. The distillation component 2 includes an inner tube 21, which is plugged into the mouth of the four-necked flask 1. The height of the inner tube 21 is 15CM. The inner tube 21 forms a closed connection with the mouth of the four-necked flask 1 to ensure that the substance does not leak. The interior of the inner tube 21 is fixedly connected with two groups of symmetrically arranged partitions 22. The function of the partitions 22 is to enhance the flow stability and separation efficiency of the fluid, and at the same time limit the range of movement of the filled metal sheet 23. A metal sheet 23 is filled between the two sets of separators 22. The metal sheet 23 is in the shape of a magnetic spring, and the thread is set to five turns with a length of 2-3CM. The water vapor and liquid generated in the four-necked flask 1 flush the magnetic spring-shaped metal sheet 23. The metal sheet 23 rolls due to its own positive and negative polarity, driving the rapid separation of raw materials and water, allowing the unsaturated resin to achieve rapid separation of water and raw materials over a short distance during the experiment.

[0028] Reference Figure 1 - Figure 2 The top of the inner tube 21 is provided with a socket 24, and a thermometer 25 is inserted into the inside of the socket 24. The thermometer 25 is used to monitor the temperature inside the inner tube 21 in real time to ensure temperature control during the experiment. The outer wall of the inner tube 21 is fixedly connected with a sleeve 26, and the outer wall of the sleeve 26 is provided with a water inlet 27 and a water outlet 28. The outer wall of the inner tube 21 is fixedly connected with a connecting pipe 29. The water inlet 27 and the water outlet 28 allow the coolant to flow into and out of the sleeve 26, thereby controlling the inner tube 21 to be at a suitable temperature during the reaction. The end of the connecting pipe 29 is plugged with a spherical condenser 3, which is responsible for guiding the gas or steam into the spherical condenser 3, and condensing the gas or steam through the spherical condenser 3. The end of the spherical condenser 3 is sleeved with a bend pipe 4, and the bottom end of the bend pipe 4 is sleeved with a collecting bottle 5. The unsaturated resin liquid flowing out of the spherical condenser is collected by the collecting bottle 5 for subsequent analysis and application.

[0029] Working Principle: First, the required raw materials (unsaturated resin monomer and other additives) are placed into a four-necked flask 1. Under the influence of heat or a catalyst, the reactants begin a chemical reaction, producing unsaturated resin, gas, and water vapor. As the reaction proceeds, the generated water vapor and gas rise from the four-necked flask 1 and enter the inner tube 21. As the water vapor and liquid pass through the metal sheet 23, the metal sheet 23, due to its spring-like structure and magnetic properties, is eroded and tumbles. This tumbling motion, leveraging its positive and negative polarity, helps improve the mixing and separation efficiency of the fluids, thereby quickly separating the water and raw materials from the unsaturated resin. Cooling liquid enters the sleeve 26 through its water inlet 27 and outlet 28 to regulate the temperature of the inner tube 21 and prevent the steam from overheating. The gas or steam is then guided through a connecting tube 29 to the spherical condenser 3. In the spherical condenser 3, the gas or steam rapidly cools upon contact with the coolant and condenses into a liquid. The condensed unsaturated resin liquid then flows out through the elbow 4 and into the collection flask 5.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An unsaturated resin experimental device, comprising a four-necked flask (1), characterized in that: A fractionation assembly (2) is provided at the mouth of the four-necked flask (1), and the fractionation assembly (2) comprises an inner tube (21), the inner tube (21) being plugged into the mouth of the four-necked flask (1), two groups of symmetrically arranged spacers (22) being fixedly connected inside the inner tube (21), a metal sheet (23) being filled between the two groups of spacers (22), a sleeve (26) being fixedly connected to the outer wall of the inner tube (21), and a connecting tube (29) being fixedly connected to the outer wall of the inner tube (21).

2. The unsaturated resin experimental device according to claim 1, characterized in that: The metal sheet (23) is in the shape of a magnetic spring, and the thread is set to five turns with a length of 2-3CM.

3. The unsaturated resin experimental device according to claim 1, characterized in that: The outer wall of the sleeve (26) is provided with a water inlet (27) and a water outlet (28).

4. The unsaturated resin experimental device according to claim 1, characterized in that: A plug hole (24) is provided at the top end of the inner tube (21), and a thermometer (25) is inserted into the plug hole (24).

5. The unsaturated resin experimental device according to claim 1, characterized in that: A spherical condenser tube (3) is inserted into the end of the connecting tube (29).

6. The unsaturated resin experimental device according to claim 1, characterized in that: The height of the inner tube (21) is 15CM.

7. The unsaturated resin experimental device according to claim 5, characterized in that: The end of the spherical condenser (3) is sleeved with a curved tube (4), and the bottom end of the curved tube (4) is sleeved with a collecting bottle (5).

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