CN212417902U

CN212417902U - Novel multipoint photoreactor

Info

Publication number: CN212417902U
Application number: CN202021375920.9U
Authority: CN
Inventors: 王雅洁; 龚先河; 罗迎春; 陶秀珍; 吴鑫
Original assignee: Guizhou Minzu University
Current assignee: Guizhou Minzu University
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-01-29
Anticipated expiration: 2030-07-14

Abstract

The utility model provides a novel multiple spot light reactor, including magnetic stirrers, shell, lamp shade, reactor and recirculated cooling water device, the shell is located the outside cartridge type dustcoat of reactor for the cover, and magnetic stirrers settles in the bottom of reactor and shell, and the relative both sides of reactor communicate respectively has inlet tube and outlet pipe, and the other end of inlet tube and outlet pipe links to each other with recirculated cooling water device's water inlet and delivery port respectively, lies in the top of reactor in the shell along transversely being provided with the lamp shade, and the downside of lamp shade is provided with the reaction lamp, and the lamp shade sets up on the shell along vertical slip. By adopting multi-point magnetic stirring, multiple groups of experiments can be performed simultaneously, and errors are reduced; the light energy and the illumination intensity are controlled by changing the distance, and the illumination is uniform and is not influenced by stray light; the reaction device has simple structure and convenient use, and is suitable for photochemical reaction research of various media such as water, air, heavy metal, biology and the like. Belongs to the technical field of photoreaction.

Description

Novel multipoint photoreactor

Technical Field

The utility model provides a novel reactor and a use method thereof, belonging to the field of test reaction devices.

Background

The photochemical reaction refers to that a substance absorbs photons under irradiation of sunlight to make molecules of the substance in a certain electronic excited state, so as to cause a chemical reaction with other substances. Photochemical reactions are mainly divided into two categories: photosynthesis and photodecomposition. Compared with other chemical reactions, the photochemical reaction has the characteristics of good selectivity, economy, practicability, mild reaction conditions, favorable control and the like, and has an important position in the chemical field.

At the end of the 18 th century, photosynthesis was first proposed and the effect of light on substances was studied. In the 80 s, photochemical reactions developed rapidly, picoseconds, pulsed light sources, pulsed laser technology, and the like were introduced. At present, research on photochemical reactions has become a hotspot of this age. For example, under the action of photochemical reactions, complex compounds are synthesized; under the photocatalysis, toxic and harmful organic matters are degraded; in clinical medicine, light chemotherapy is used to treat difficult and complicated diseases. With the intensive research on photochemical reactions, it extends to the fields of synthesis technology, solar energy utilization, optical functional materials, photobiochemistry, environmental photochemistry, and the like. Especially in the field of environmental chemistry, light can cause a series of photochemical reactions and phenomena, which are closely related to environmental pollution and pollution treatment. Photochemistry is an important component of environmental chemistry, is a branch of environmental science, and is an important method for currently treating environmental pollution by treating the environment by using photochemistry. In the research of photochemical reaction process, the photochemical reactor is used as key equipment in photochemical production, and the performance of the photochemical reactor is very important for the application of the photochemical reaction process.

Compared with other fields, photochemical research starts late, the research depth is shallow, and high-end precise photochemical research instruments and equipment thereof are in short supply and expensive, so that the photochemical research instruments are difficult to popularize widely. The prior photochemical reactor has the following defects: first, photoreactor all is in the past with single experiment as the main, can't carry out multiunit experiment, if need carry out multiunit experiment, just need go on under different lamps. However, even if the lamps of the same type have certain differences in use time and use method, experimental errors can be inevitable for photochemical experiments which are particularly sensitive to light intensity; secondly, the safety is high, because the reactor is open, when the reactor is used for long-time reaction, the local temperature is increased, liquid can be splashed to the surface of the bulb carelessly, so that the local part of the bulb is cooled to generate crushing explosion, and certain risk exists; thirdly, different lamps are mostly installed in the conventional photoreactor to obtain different light energies, so that the accuracy of the experiment is reduced; fourthly, most of the existing reaction devices occupy large space and volume, are not easy to move, have weak irradiation performance of a light source, small illumination area, are difficult to uniformly irradiate and have poor applicability to reaction vessels; fifthly, the photoreactor with the light source in the center needs to rotate to ensure the uniformity of light, and the solution or suspension can be stirred uniformly only by aeration, so that the cost is high and the system is complex. Therefore, the development of new photochemical reactors is not always slow.

Disclosure of Invention

The utility model aims to provide a: provides a novel multipoint photoreactor to solve the defects of the prior photochemical reactor.

In order to solve the problems, the novel multipoint photoreactor is supposed to be adopted, which comprises a magnetic stirrer, a shell, a lamp shade, a reactor and a circulating cooling water device, wherein the shell is a cylindrical outer cover arranged outside the reactor, the magnetic stirrer is arranged at the bottom of the reactor and the shell, the two opposite sides of the reactor are respectively communicated with a water inlet pipe and a water outlet pipe, the other ends of the water inlet pipe and the water outlet pipe are respectively connected with a water inlet and a water outlet of the circulating cooling water device, the lamp shade is transversely arranged above the reactor in the shell, the lower side of the lamp shade is provided with a reaction lamp, and the lamp shade is arranged on the shell along the vertical sliding direction.

In the photoreactor, guide grooves are vertically formed in two opposite sides of the shell, screw rods are transversely fixed to the positions, corresponding to the guide grooves, of the lampshade, the screw rods are vertically and slidably arranged in the corresponding guide grooves, one ends of the screw rods extend to the outside of the shell, positioning nuts are screwed and fixed to the screw rods outside the shell, and the vertical position of the lampshade is limited through friction force between the positioning nuts and the outer surface of the shell;

in the photoreactor, the upper end of the reactor is provided with a plurality of reactor grooves for accommodating beakers;

in the photoreactor, one side of the lower part of the shell is provided with an openable sampling door;

in the photoreactor, the reactor is of a square structure, and the shell is a square cylinder with the circumferential dimension larger than that of the reactor.

Compared with the prior art, the utility model has the advantages of it is following: firstly, multiple groups of experiments can be performed under the same environmental condition, so that the accuracy of the experiments is improved, and the time and the cost are saved; secondly, the intensity and time of illumination can be controlled at any time when the solution reacts, the reaction solution is not influenced by temperature, and the uniformity of the reaction medium under illumination is ensured; thirdly, controlling the light energy reaching the solution by changing the distance between the lampshade and the reaction solution placing device; and fourthly, the operations of temperature control, sample adding, sampling and the like of the reaction container are not limited by the photochemical reactor. Fifthly, the price is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of the reactor of FIG. 1.

Detailed Description

In order to make the explanation of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings.

Examples

Referring to fig. 1 and 2, the embodiment provides a novel multipoint photoreactor, which includes a magnetic stirrer 1, a housing 2, a lampshade 3, a reactor 7 and a circulating cooling water device 12, where the housing 2 is a cylindrical outer cover covering the outside of the reactor 7, the magnetic stirrer 1 is disposed at the bottom of the reactor 7 and the housing 2, opposite sides of the reactor 7 are respectively communicated with a water inlet pipe 5 and a water outlet pipe 6, the other ends of the water inlet pipe 5 and the water outlet pipe 6 are respectively connected with a water inlet and a water outlet of the circulating cooling water device 12 (the two sides of the housing 2 are respectively provided with a water inlet hole and a water outlet hole for the water inlet pipe 5 and the water outlet pipe 6 to pass through), the lampshade 3 is transversely disposed above the reactor 7 in the housing 2, the lampshade 3 can be a conventional reaction lampshade, that is, a lamp panel is provided with a flow stabilizer on the upper portion thereof, a reaction lamp panel, only need connect the picture peg can, lamp shade 3 sets up on shell 2 along vertical slip, the sampling door 8 that can open the formula is seted up to one side of shell 2 lower part.

The two opposite sides of the shell 2 are vertically provided with guide grooves 4, the positions, corresponding to the guide grooves 4, on the lampshade 3 are transversely fixed with screw rods 31, the screw rods 31 are vertically and slidably arranged in the corresponding guide grooves 4, one ends of the screw rods 31 extend to the outside of the shell 2, the screw rods 31 outside the shell 2 are fixedly screwed with positioning nuts 15, and the vertical position of the lampshade 3 is limited by the friction force between the positioning nuts 15 and the outer surface of the shell 2;

the reactor 7 is of a hollow box-shaped structure, the upper end of the reactor 7 is provided with a plurality of reactor grooves 14 for accommodating beakers 13, the reactor 7 is a cuboid with the bottom area equal to that of the magnetic stirrer, different numbers of reactor grooves 14 are designed according to experimental requirements, and the beakers 13 are placed in the reaction liquid placing grooves 14; the reactor groove 14 is a cylinder, the beaker 13 is higher than the reactor groove 14 for convenient taking out and placing, and the shell 2 is a square cylinder with the circumferential dimension larger than that of the reactor 7.

When the novel photoreactor provided by the utility model is used, the circulating cooling water device 12 is opened, cooling water enters from the water inlet pipe 5 and flows out from the water outlet pipe 6, and the cooling water is circulated continuously to keep the temperature in the reactor 7 unchanged; then, adjusting the distance between the lampshade 3 and the reactor 7 according to the illumination intensity and light energy required by experimental design, wherein the shortest distance between the reaction liquid and the lampshade 3 is 20cm, and electrifying the lamp panel; placing reaction raw materials in beakers 13, opening sampling gates 8, placing a plurality of groups of beakers 13 in reactor grooves 14, closing the sampling gates 8 and avoiding light leakage; and finally, arranging a magnetic stirrer 1, and starting a power switch to enable the magnetic stirrer 1 to work.

The following takes the photo-oxidation process of arsenous acid in goethite suspension as an example, and the specific operation process of the device is as follows:

1. opening the circulating cooling water device 1;

2. turning on an ultraviolet lamp (reaction lamp) and measuring the average irradiation energy of the reaction device;

3. preparing a plurality of groups of arsenous acid with certain concentration and goethite suspension liquid, mixing, adjusting the pH value, pouring the prepared solution into a beaker 13, and sequentially placing the beaker 13 into a groove 14 of a reactor;

4. starting the magnetic stirrer 1 to uniformly mix the solution;

5. samples are collected at different times respectively, and the concentration of the reactant or the product is obtained by determination.

It was found that the results were highly reproducible and less biased when multiple reactions were carried out on the arsenous acid-containing solution under the same conditions, indicating that the apparatus had good stability.

The above-described embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of patent protection by the description of exemplary embodiments in the specification and drawings.

The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the concept of the present invention within the knowledge of those skilled in the art.

Claims

1. A novel multipoint photoreactor is characterized in that: including magnetic stirrers (1), shell (2), lamp shade (3), reactor (7) and recirculated cooling water device (12), the outside cartridge type dustcoat in reactor (7) is located for the cover in shell (2), magnetic stirrers (1) are settled in the bottom of reactor (7) and shell (2), the relative both sides of reactor (7) communicate respectively has inlet tube (5) and outlet pipe (6), the other end of inlet tube (5) and outlet pipe (6) links to each other with the water inlet and the delivery port of recirculated cooling water device (12) respectively, the top that lies in reactor (7) in shell (2) is along transversely being provided with lamp shade (3), the downside of lamp shade (3) is provided with the reaction lamp, lamp shade (3) set up on shell (2) along vertical slip.

2. The novel multipoint photoreactor according to claim 1, wherein: the relative both sides of shell (2) are all along vertical guide way (4) of having seted up, correspond guide way (4) department on lamp shade (3) and all have screw rod (31) along transversely being fixed with, and screw rod (31) all set up in guide way (4) that correspond along vertical slip, and the one end of screw rod (31) extends the outside of shell (2), all screws on screw rod (31) of shell (2) outside and is fixed with set nut (15).

3. The novel multipoint photoreactor according to claim 1, wherein: the upper end of the reactor (7) is provided with a plurality of reactor grooves (14) for placing beakers (13).

4. The novel multipoint photoreactor according to claim 1, wherein: one side of the lower part of the shell (2) is provided with an openable sampling door (8).

5. The novel multipoint photoreactor according to claim 1, wherein: the reactor (7) is of a square structure, and the shell (2) is a square cylinder body with the circumferential size larger than that of the reactor (7).