Light shielding device of glass reaction kettle and light shielding system of glass reaction kettle

Abstract

The utility model relates to the field of chemical engineering, and discloses a light shielding device of a glass reaction kettle, which comprises an upper clamping sleeve, a lower clamping sleeve, a light shielding plate and a light shielding cover, the upper clamping sleeve and the lower clamping sleeve are respectively sleeved on the upper part and the lower part of a glass reaction kettle body and are coaxially arranged, and the light shielding cover is connected to the top of the upper clamping sleeve; the two ends of at least one light shielding plate are in sliding connection with the upper clamping sleeve and the lower clamping sleeve respectively, so that the light shielding plates control the exposed area of the outer side face of the glass reaction kettle body according to the moving positions of the light shielding plates. Meanwhile, the utility model also discloses a glass reaction kettle. According to the utility model, the outer side surface of the glass reaction kettle can be completely covered by the slidable shading plate, the shading cover is formed by matching with the upper clamping sleeve, the lower clamping sleeve and the top cover, the shading effect on the glass reaction kettle is achieved, and the exposed area of the outer side surface of the glass reaction kettle can be controlled through the slidable shading plate, so that the condition of the glass reaction kettle can be conveniently observed.

Description

Technical Field

[0001] The utility model relates to the field of chemical industry, in particular to a light-shielding device for a glass reactor and a light-shielding system for a glass reactor. Background Art

[0002] Glass reactor is a kind of equipment used for chemical reactions in chemical laboratories. It is usually made of high temperature resistant glass material and can withstand reaction conditions under high temperature and high pressure. Glass reactor has the characteristics of good transparency, which allows the reaction process to be observed, and is convenient for experimenters to monitor and adjust reaction conditions. It is widely used in experiments in the fields of organic synthesis, catalytic reaction, crystal growth, etc.

[0003] Since the glass reactor is fully transparent, it will be affected by natural light or artificial light during the reaction process. This is especially true for materials and products that are easily decomposed by light. Therefore, in production, the fully transparent characteristics of the glass reactor may destroy the reaction conditions, affect the reaction rate, conversion rate, and the physical and chemical properties of materials and products. Therefore, when using a glass reactor for production, it is necessary to take light-proof measures to create a light-free environment to protect the reaction from the influence of light.

[0004] CN215743352U discloses a light-shielding device for a glass reaction tank, including a transparent cover body, a rubber stopper, and a plurality of groups of light shielding plates with different light shielding degrees, each group including four light shielding plates with the same light shielding degree. The outer shape of the cover body is a rectangular parallelepiped structure with a square bottom surface, the opening of the cover body faces downward, and light shielding paper is pasted on the top of the cover body. The four outer side walls of the cover body are vertically provided with interlayers for inserting light shielding plates, the opening of the interlayer faces upward, and the opening of the interlayer is rounded. The left and right sides of the light shielding plate are wedge-shaped structures, and the rubber stopper is used to seal the opening of the interlayer.

[0005] The above technical solution is to set multiple interlayers on the cover body, insert shading plates with the same shading degree into the multiple interlayers respectively, so that the cover body and the shading plates are combined into a light-shielding cover, which has the effect of shielding the glass reaction tank from light. However, when the technician needs to check the condition of the glass reaction tank, the technician needs to lift the shading plate to a certain height to see it, which is very troublesome. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems, and a light-shielding device for a glass reactor is provided. The light-shielding device is provided with at least two light shielding plates between the upper ferrule and the lower ferrule, and at least one of the light shielding plates is slidable. The slidable light shielding plates can completely cover the outer side of the glass reactor, and cooperate with the upper ferrule, the lower ferrule, and the light shielding cover to form a light-shielding cover, which has a light-shielding effect on the glass reactor. Moreover, the slidable light shielding plates can also control the exposed area of ​​the outer side of the glass reactor, which is convenient for observing the situation of the glass reactor. At the same time, the utility model also discloses a light-shielding system for a glass reactor with the light-shielding device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A light-shielding device for a glass reactor, comprising an upper ferrule, a lower ferrule, a light shielding plate, and a light shielding cover, wherein the upper ferrule and the lower ferrule are both annular structures, and the upper ferrule and the lower ferrule are respectively sleeved on the upper and lower parts of an external glass reactor body, the upper ferrule and the lower ferrule are coaxially arranged, and the light shielding cover is connected to the top of the upper ferrule;

[0009] There are at least two shading plates, and the two ends of at least one shading plate are respectively slidably connected to the upper clamping sleeve and the lower clamping sleeve, so that the shading plate controls the exposed area of ​​the outer side surface of the glass reactor body according to its moving position.

[0010] Preferably, there are two shading plates, namely an outer shading plate and an inner shading plate, and both ends of the outer shading plate and / or both ends of the inner shading plate are slidably connected to the upper ferrule and the lower ferrule.

[0011] Preferably, the upper ferrule is provided with a first slide groove and a second slide groove coaxially arranged with the first slide groove;

[0012] The lower ferrule is provided with a third slide groove corresponding to the upper and lower positions of the first slide groove, and a fourth slide groove corresponding to the upper and lower positions of the second slide groove;

[0013] The upper end of the outer shading plate is slidably connected to the first slide groove, and the lower end of the outer shading plate is slidably connected to the third slide groove; the upper end of the inner shading plate is slidably connected to the second slide groove, and the lower end of the inner shading plate is slidably connected to the fourth slide groove.

[0014] Preferably, the upper end of the outer shading plate is provided with a first roller matching the first slide groove, and the lower end of the outer shading plate is provided with a second roller matching the third slide groove; the upper end of the outer shading plate is slidably connected to the first slide groove through the first roller, and the lower end of the outer shading plate is slidably connected to the third slide groove through the second roller;

[0015] The upper end of the inner light shielding plate is provided with a third roller matching the second slide groove, and the lower end of the inner light shielding plate is provided with a fourth roller matching the fourth slide groove; the upper end of the inner light shielding plate is slidably connected to the second slide groove through the third roller, and the lower end of the inner light shielding plate is slidably connected to the fourth slide groove through the fourth roller.

[0016] Preferably, the upper ferrule comprises a first half and a second half, and the first half and the second half are connected by bolts to form an upper ferrule of a circular ring structure;

[0017] The lower ferrule includes a third half and a fourth half, which are connected by bolts to form a lower ferrule with a circular structure. The upper end of the shading plate is connected to the first half or the second half, and the lower end of the shading plate is connected to the third half or the fourth half.

[0018] Preferably, it also includes multiple fixing rods, and the upper ferrule and the lower ferrule are both provided with multiple threaded holes matching the fixing rods, the two ends of the fixing rods are respectively connected to the threaded holes of the upper ferrule and the threaded holes of the lower ferrule, and the fixing rods are located on the outside of the sunshade.

[0019] Preferably, a sealing gasket is provided on both the upper ferrule and the lower ferrule, and the sealing gasket is located on the inner side surface of the upper ferrule and the inner side surface of the lower ferrule;

[0020] When the upper ferrule and the lower ferrule are respectively sleeved on the upper part and the lower part of the glass reactor body, the sealing gasket on the upper ferrule and the sealing gasket on the lower ferrule both fit with the outer side surface of the glass reactor body.

[0021] Preferably, a handle is provided on the slidingly connected sunshade.

[0022] Preferably, it also includes a top cover, the light shielding cover is a spherical crown structure, the top of the light shielding cover is provided with a recess matching the top cover, the top cover is connected in the recess, and the top cover is provided with a through hole for placing an external detection device.

[0023] Meanwhile, the utility model also discloses a glass reactor light-shielding system, comprising a glass reactor, on which the above light-shielding device is sleeved.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The utility model arranges at least two shading plates between the upper ferrule and the lower ferrule, and at least one of the shading plates is slidable. The slidable shading plate can completely cover the outer side surface of the glass reactor, and cooperates with the upper ferrule, the lower ferrule, and the top cover to form a light-shielding cover, which has a light-shielding effect on the glass reactor. In addition, the slidable shading plate can also control the exposed area of ​​the outer side surface of the glass reactor, which is convenient for observing the condition of the glass reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is one of the three-dimensional diagrams of the light-shielding device of the utility model;

[0027] Figure 2 This is the second stereoscopic diagram of the light shielding device of the utility model;

[0028] Figure 3 It is a structural schematic diagram of an upper ferrule of the light-shielding device of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the lower ferrule of the light-shielding device of the utility model;

[0030] Figure 5 It is a structural schematic diagram of a glass reactor of the utility model;

[0031] The reference numerals of the accompanying drawings are as follows:

[0032] Upper ferrule 1, lower ferrule 2, shading plate 3, shading cover 4, fixing rod 5, top cover 6, glass reactor 7, first slide groove 11, second slide groove 12, first half 13, second half 14, threaded hole 15, third slide groove 21, fourth slide groove 22, third half 23, fourth half 24, outer shading plate 31, inner shading plate 32, handle 33, recess 41, through hole 61. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example 1

[0035] refer to Figures 1 to 4 A light-shielding device for a glass reactor comprises an upper ferrule 1, a lower ferrule 2, a light shielding plate 3, and a light shielding cover 4. The upper ferrule 1 and the lower ferrule 2 are both annular structures. The upper ferrule 1 and the lower ferrule 2 are respectively sleeved on the upper and lower parts of the glass reactor body. The upper ferrule 1 and the lower ferrule 2 are coaxially arranged, and the light shielding cover 4 is connected to the top of the upper ferrule 1;

[0036] There are at least two shading plates 3, and the two ends of at least one shading plate 3 are slidably connected to the upper ferrule 1 and the lower ferrule 2 respectively, so that the shading plate 3 controls the exposed area of ​​the outer side surface of the glass reactor body according to its moving position.

[0037] Under this design, the operator can install the lower ferrule 2 on the lower part of the external glass reactor body according to the actual required height, then connect the shading plate 3 to the lower ferrule 2, and finally install the upper ferrule 1 on the upper part of the external glass reactor body. At this time, it is necessary to ensure that at least one shading plate 3 is slidably connected, and finally install the shading cover 4 on the upper ferrule 1 to complete the assembly of the device.

[0038] When it is necessary to avoid light, the slidable shading plate 3 is pulled to slide along the outer side of the glass reactor body, and cooperates with the non-sliding shading plate 3 to completely cover the outer side of the external glass reactor. The upper ferrule 1, the lower ferrule 2, the shading plate 3, and the shading cover 4 form a light-shielding cover to protect the glass reactor from light.

[0039] When the condition of the glass reactor needs to be checked, the operator can check the condition of the glass reactor by pulling the slidable shading plate 3 and controlling the exposed area of ​​the outer side of the glass reactor according to the moving position, which is very convenient and has a simple structure.

[0040] Preferably, there are two shading plates 3, namely an outer shading plate 31 and an inner shading plate 32, and both ends of the outer shading plate 31 and / or both ends of the inner shading plate 32 are slidably connected to the upper ferrule 1 and the lower ferrule 2.

[0041] In a specific embodiment, the upper and lower ends of the outer shading plate 31 are fixedly connected to the upper ferrule 1 and the lower ferrule 2, respectively, and the upper and lower ends of the inner shading plate 32 are slidably connected to the upper ferrule 1 and the lower ferrule 2, respectively. When in use, the inner shading plate 32 is pulled to cooperate with the outer shading plate 31 to completely cover the outer side of the glass reactor; in the fully covered state, the exposed area of ​​the outer side of the glass reactor can be controlled by pulling the inner shading plate 32.

[0042] In other embodiments, the upper and lower ends of the outer shading plate 31 are respectively slidably connected to the upper ferrule 1 and the lower ferrule 2, and the upper and lower ends of the inner shading plate 32 are respectively fixedly connected to the upper ferrule 1 and the lower ferrule 2. When in use, the outer shading plate 31 is pulled to cooperate with the inner shading plate 32 to completely cover the outer side of the glass reactor; in the fully covered state, the exposed area of ​​the outer side of the glass reactor can be controlled by pulling the outer shading plate 31.

[0043] In a preferred embodiment, the upper and lower ends of the outer shading plate 31 are slidably connected to the upper ferrule 1 and the lower ferrule 2, respectively; the upper and lower ends of the inner shading plate 32 are slidably connected to the upper ferrule 1 and the lower ferrule 2, respectively; when in use, the outer shading plate 31 is pulled to cooperate with the inner shading plate 32, or the inner shading plate 32 is pulled to cooperate with the outer shading plate 31, or the inner shading plate 32 and the outer shading plate 31 are pulled at the same time to cooperate with each other, so as to completely cover the outer side of the glass reactor; in the fully covered state, the exposed area of ​​the outer side of the glass reactor can be controlled by pulling the outer shading plate 31 or the inner shading plate 32. During operation, compared with the method in which the outer shading plate 31 and the inner shading plate 32 can only be pulled individually, the method in which both the outer shading plate 31 and the inner shading plate 32 can be pulled is more flexible and has a larger operating space.

[0044] All three methods can achieve complete covering of the outer side of the glass reactor or partially expose the outer side of the glass reactor, and the operator can choose to adopt according to actual conditions.

[0045] In a preferred embodiment, a first slide groove 11 arranged in an annular manner is provided on the upper ferrule 1, a third slide groove 21 corresponding to the upper and lower positions of the first slide groove 11 is provided on the lower ferrule 2, a first roller (not shown in the figure) matching the first slide groove 11 is provided at the upper end of the outer light shielding plate 31, and a second roller (not shown in the figure) matching the third slide groove 21 is provided at the lower end of the outer light shielding plate 31; the upper end of the outer light shielding plate 31 is slidably connected to the first slide groove 11 through the first roller, and the lower end of the outer light shielding plate 31 is slidably connected to the third slide groove 21 through the second roller. Because the first slide groove 11 and the third slide groove 21 are both located outside the glass reactor body, they are also coaxially arranged with the circumference path of the glass reactor body. When the outer light shielding plate 31 is pulled, under the guidance of the first slide groove 11 and the third slide groove 21, the outer light shielding plate 31 can move around the circumference path of the glass reactor body.

[0046] Furthermore, a second slide groove 12 coaxially arranged with the first slide groove 11 is provided on the upper ferrule 1, and a fourth slide groove 22 corresponding to the upper and lower positions of the second slide groove 12 is provided on the lower ferrule 2. A third roller (not shown in the figure) matching the second slide groove 12 is provided at the upper end of the inner light shielding plate 32, and a fourth roller (not shown in the figure) matching the fourth slide groove 22 is provided at the lower end of the inner light shielding plate 32; the upper end of the inner light shielding plate 32 is slidably connected to the second slide groove 12 through the third roller, and the lower end of the inner light shielding plate 32 is slidably connected to the fourth slide groove 22 through the fourth roller. Because the second slide groove 12 and the fourth slide groove 22 are both located outside the glass reactor body, they are also coaxially arranged with the circumference path of the glass reactor body. When the inner light shielding plate 32 is pulled, under the guiding action of the second slide groove 12 and the fourth slide groove 22, the inner light shielding plate 32 can move around the circumference path of the glass reactor body.

[0047] In actual use, the first roller and the second roller are arranged on the outer shading plate 31, and the third roller and the fourth roller are arranged on the inner shading plate 32, which can reduce the friction during sliding, improve the sliding efficiency, and can withstand a larger load to avoid jamming.

[0048] Both methods can realize the movement of the outer shading plate 31 and the inner shading plate 32 around the circumference of the glass reactor body, and the operator can choose according to the actual situation.

[0049] As a preference in this embodiment, both the upper ferrule 1 and the lower ferrule 2 can be assembled, specifically: the upper ferrule 1 includes a first half 13 and a second half 14, and the first half 13 and the second half 14 are connected by bolts to form an upper ferrule 1 of a circular ring structure;

[0050] Furthermore, the lower ferrule 2 includes a third half 23 and a fourth half 24, and the third half 23 and the fourth half 24 are connected by bolts to form a lower ferrule 2 with a circular structure, the upper end of the shading plate 3 is connected to the first half 13 or the second half 14, and the lower end of the shading plate 3 is connected to the third half 23 or the fourth half 24.

[0051] In practical applications, because both the upper ferrule 1 and the lower ferrule 2 are annular structures, the first half 13 and the second half 14 of the upper ferrule 1 preferably adopt a semi-circular structure, and the third half 23 and the fourth half 24 of the lower ferrule 2 preferably adopt a semi-circular structure. During installation, the operator can first sleeve the third half 23 on the side of the glass reactor body by transverse insertion, and then sleeve the fourth half 24 on the side of the glass reactor body according to the sleeve position of the third half 23, and finally connect the third half 23 and the fourth half 24 by bolts to complete the installation of the lower ferrule 2. Of course, the fourth half 24 can also be sleeved first, and then the third half 23 can be sleeved, and finally the third half 23 and the fourth half 24 can be connected by bolts. The operator can choose according to the actual situation.

[0052] Similarly, when installing the upper ferrule 1, the first half 13 can be sleeved on the side of the glass reactor body first, and then the second half 14 can be sleeved on the side of the glass reactor body according to the sleeve position of the first half 13, and finally the first half 13 and the second half 14 are connected by bolts to complete the installation of the upper ferrule 1. Of course, the second half 14 can be sleeved first, and then the first half 13 is sleeved, and finally the first half 13 and the second half 14 are connected by bolts. The operator can choose according to the actual situation.

[0053] In this embodiment, a plurality of fixing rods 5 are also included, and a plurality of threaded holes 15 matching the fixing rods 5 are provided on the upper ferrule 1 and the lower ferrule 2. During the installation process, the fixing rods 5 need to be selected according to the installation heights of the upper ferrule 1 and the lower ferrule 2. When installing the upper ferrule 1 and the lower ferrule 2, it is necessary to ensure that the position of the threaded hole 15 in the upper ferrule 1 and the position of the threaded hole 15 in the lower ferrule 2 correspond to each other, and the two ends of the fixing rod 5 are respectively connected to the threaded hole 15 of the upper ferrule 1 and the threaded hole 15 of the lower ferrule 2. The function of the fixing rod 5 is to ensure the stability between the upper ferrule 1 and the lower ferrule 2. In addition, the fixing rods 5 can be three, four, five, six or more. Regarding the number of fixing rods 5, it is not limited in this embodiment, and the operator can select a suitable number according to the actual situation.

[0054] More preferably, in order to improve the fit between the upper ferrule 1 and the glass reactor body, and the fit between the lower ferrule 2 and the glass reactor body, a sealing gasket (not shown in the figure) is provided on both the upper ferrule 1 and the lower ferrule 2, and the sealing gasket is located on the inner side surface of the upper ferrule 1 and the inner side surface of the lower ferrule 2;

[0055] Furthermore, when the upper ferrule 1 and the lower ferrule 2 are respectively sleeved on the upper and lower parts of the glass reactor body, the sealing gasket on the upper ferrule 1 and the sealing gasket on the lower ferrule 2 are both fitted with the outer side of the glass reactor body. While improving the fit, the mutual wear between the upper ferrule 1 and the glass reactor body, and between the lower ferrule 2 and the glass reactor body can be reduced during the installation process.

[0056] More preferably, a handle 33 is provided on the slidingly connected sunshade 3. By providing the handle 33, the sunshade 3 is more convenient for the operator to pull.

[0057] As a further optimization of this embodiment, the light shielding cover 4 adopts a spherical crown structure that is more compatible with the top of the glass reactor body, and a top cover 6 is also connected to the light shielding cover 4. By providing a recess 41 matching the top cover 6 on the top of the light shielding cover 4 and connecting the top cover 6 to the recess 41, the stability of the connection of the top cover 6 can be ensured. A through hole 61 for placing an external detection device is also provided on the top cover 6. In actual use, the through hole 61 can be connected to instrument equipment such as a liquid level meter, a temperature sensor, a pressure sensor, a pH meter, or an instrument equipment for obtaining information such as the liquid level height, pressure, temperature, and reaction progress in the glass reactor, thereby improving reaction efficiency and safety.

[0058] Example 2

[0059] refer to Figure 5 A glass reactor light-shielding system comprises a glass reactor 7, on which the light-shielding device as in Example 1 is sleeved.

[0060] In actual use, after the glass reactor adopts the light shielding device of Example 1, when light shielding is needed, the operator can pull the outer light shielding plate 31 or the inner light shielding plate 32, or pull the outer light shielding plate 31 and the inner light shielding plate 32 at the same time. The outer light shielding plate 31 can move around the perimeter path of the glass reactor 7 under the guidance of the first slide groove 11 and the third slide groove 21, and the inner light shielding plate 32 can also move around the perimeter path of the glass reactor 7 under the guidance of the second slide groove 12 and the fourth slide groove 22. Through the cooperation of the outer light shielding plate 31 and the inner light shielding plate 32, the outer side surface of the glass reactor 7 can be completely covered. Moreover, during the reaction process, if the operator needs to observe the situation of the glass reactor 7, the inner light shielding plate 32 or the outer light shielding plate 31 can be pulled to control the exposed area of ​​the outer side surface of the glass reactor, and the operator can observe the situation of the glass reactor 7 through the exposed area.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A light shielding device for a glass reactor, comprising an upper ferrule, a lower ferrule, a light shielding plate, and a light shielding cover, characterized in that: The upper ferrule and the lower ferrule are both annular structures, and the upper ferrule and the lower ferrule are respectively sleeved on the upper and lower parts of the external glass reactor body, the upper ferrule and the lower ferrule are coaxially arranged, and the light shielding cover is connected to the top of the upper ferrule; There are at least two shading plates, and two ends of at least one shading plate are slidably connected to the upper clamping sleeve and the lower clamping sleeve respectively, so that the shading plate controls the exposed area of ​​the outer side surface of the glass reactor body according to its moving position.

2. The light-shielding device for a glass reactor according to claim 1, characterized in that: There are two shading plates, namely an outer shading plate and an inner shading plate, and two ends of the outer shading plate and / or two ends of the inner shading plate are slidably connected to the upper ferrule and the lower ferrule.

3. The light shielding device for a glass reactor according to claim 2, characterized in that: The upper ferrule is provided with a first slide groove and a second slide groove coaxially arranged with the first slide groove; The lower ferrule is provided with a third slide groove corresponding to the upper and lower positions of the first slide groove, and a fourth slide groove corresponding to the upper and lower positions of the second slide groove; The upper end of the outer shading plate is slidably connected to the first slide groove, and the lower end of the outer shading plate is slidably connected to the third slide groove; the upper end of the inner shading plate is slidably connected to the second slide groove, and the lower end of the inner shading plate is slidably connected to the fourth slide groove.

4. The light shielding device for a glass reactor according to claim 3, characterized in that: The upper end of the outer shading plate is provided with a first roller matching the first slide groove, and the lower end of the outer shading plate is provided with a second roller matching the third slide groove; the upper end of the outer shading plate is slidably connected to the first slide groove through the first roller, and the lower end of the outer shading plate is slidably connected to the third slide groove through the second roller; The upper end of the inner light shading plate is provided with a third roller matching the second slide groove, and the lower end of the inner light shading plate is provided with a fourth roller matching the fourth slide groove; the upper end of the inner light shading plate is slidably connected to the second slide groove through the third roller, and the lower end of the inner light shading plate is slidably connected to the fourth slide groove through the fourth roller.

5. The light shielding device for a glass reactor according to claim 1, characterized in that: The upper ferrule comprises a first half and a second half, wherein the first half and the second half are connected by bolts to form the upper ferrule of a circular ring structure; The lower ferrule includes a third half and a fourth half, and the third half and the fourth half are connected by bolts to form the lower ferrule of a circular ring structure, the upper end of the shading plate is connected to the first half or the second half, and the lower end of the shading plate is connected to the third half or the fourth half.

6. The light shielding device for a glass reactor according to claim 1, characterized in that: It also includes multiple fixing rods, and the upper ferrule and the lower ferrule are both provided with multiple threaded holes matching the fixing rods, and the two ends of the fixing rods are respectively connected to the threaded holes of the upper ferrule and the threaded holes of the lower ferrule, and the fixing rods are located on the outside of the shading plate.

7. The light shielding device for a glass reactor according to claim 1, characterized in that: The upper ferrule and the lower ferrule are both provided with sealing gaskets, and the sealing gaskets are located on the inner side surfaces of the upper ferrule and the lower ferrule; When the upper ferrule and the lower ferrule are respectively sleeved on the upper part and the lower part of the glass reactor body, the sealing gasket on the upper ferrule and the sealing gasket on the lower ferrule are both in contact with the outer side surface of the glass reactor body.

8. The light shielding device for a glass reactor according to claim 1, characterized in that: A handle is provided on the slidably connected sunshade.

9. The light shielding device for a glass reactor according to claim 1, characterized in that: It also includes a top cover, the light shielding cover is a spherical crown structure, the top of the light shielding cover is provided with a recess matching the top cover, the top cover is connected in the recess, and the top cover is provided with a through hole for placing an external detection device.

10. A glass reactor light-shielding system, comprising a glass reactor, characterized in that: The glass reactor is provided with a light-shielding device as described in any one of claims 1 to 9.

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