Vacuum light source reaction device

Abstract

The utility model discloses a vacuum light source reaction device, and belongs to the technical field of light reaction equipment. The top of the box body is provided with a transparent plate, and one side of the box body is provided with a support; the first adjusting rod is rotationally mounted on the support; the second adjusting rod is rotationally mounted at one end, far away from the support, of the first adjusting rod; the light source lamp is rotationally installed at the end, away from the first adjusting rod, of the second adjusting rod, and the light source lamp is located on the transparent plate. By means of the external light source, the situation that the light source is prone to cracking in the vacuum box can be prevented, the first adjusting rod on one side of the box body is rotated to drive the second adjusting rod to swing, the position of the light source lamp can be conveniently and rapidly adjusted, and the light source can accurately irradiate the corresponding reaction position.

Description

Technical Field

[0001] This utility model relates to the field of photoreaction equipment technology, and in particular to a vacuum light source reaction device. Background Technology

[0002] Ion exchange membranes and their selective separation membranes are a class of membrane materials that can efficiently separate substances based on their size, charge properties, hydrophilicity, and hydrophobicity. They are widely used in water treatment, resource recovery, biomedicine, energy storage, and other fields.

[0003] Ultraviolet light can induce polymerization reactions. For example, in the preparation of ion exchange membranes and their selective separation membranes, ultraviolet light can be used to induce free radical polymerization to prepare ion exchange membranes or to modify the surface of ion exchange membranes. This can achieve rapid, efficient, energy-saving, environmentally friendly, and simplified processes in the preparation of ion exchange membranes. However, a vacuum chamber and ultraviolet lamps are required during the reaction process. In this case, the ultraviolet lamps are prone to breakage and difficult to position within the vacuum chamber. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum light source reaction device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a vacuum light source reaction device, comprising: a box body with a transparent plate on the top and a support mounted on one side of the box body; a first adjusting rod rotatably mounted on the support; a second adjusting rod rotatably mounted on the end of the first adjusting rod away from the support; and a light source lamp rotatably mounted on the end of the second adjusting rod away from the first adjusting rod, wherein the light source lamp can be positioned above the transparent plate.

[0006] The technical solution has at least the following beneficial effects: by using an external light source, it is possible to prevent the light source from easily breaking inside the vacuum chamber. Furthermore, by rotating the first adjusting rod on one side of the chamber, the second adjusting rod can be swung, which facilitates quick adjustment of the position of the light source, ensuring that the light source accurately illuminates the corresponding reaction position.

[0007] As a further improvement to the above technical solution, a horizontally arranged sliding rail is installed on one side of the housing, and an adjusting block is slidably mounted on the sliding rail. The support is installed on the adjusting block. By pushing the first adjusting rod on one side of the housing, the adjusting block is moved to slide on the sliding rail, which facilitates quick adjustment of the front and rear positions of the light source, allowing the light source to more accurately illuminate the corresponding reaction position.

[0008] As a further improvement to the above technical solution, the support has a groove for accommodating the adjusting block, and a fixing screw with one end inserted into the groove and pressing against the adjusting block is threaded onto the support. By loosening or tightening the fixing screw, the support can be easily removed from the adjusting block or installed on the adjusting block, thereby facilitating the installation and removal of the first adjusting rod, the second adjusting rod, and the light source.

[0009] As a further improvement to the above technical solution, a latching seat is rotatably mounted on the end of the second adjusting rod away from the first adjusting rod, and the light source is latched onto the latching seat. This facilitates the installation, disassembly, and replacement of the light source, meeting the requirements of different photoinduced reaction conditions.

[0010] As a further improvement to the above technical solution, a lifting platform is installed inside the housing. The reaction vessel is placed on top of the lifting platform, and by driving the lifting platform, the distance between the reaction vessel and the light source can be easily adjusted, thereby indirectly controlling the light intensity.

[0011] As a further improvement to the above technical solution, an electric heating plate is built into the top of the lifting platform. The electric heating plate can be used to control the surface temperature of the lifting platform, thereby controlling the reaction temperature.

[0012] As a further improvement to the above technical solution, the housing is equipped with a vacuum valve connecting to the interior of the housing. The vacuum valve is used to connect a vacuum pump, and a tail gas absorption device is installed between the vacuum pump and the vacuum valve, or the exhaust outlet of the vacuum pump is connected to the tail gas absorption device. The tail gas absorption device adsorbs organic gases and other substances inside the housing, preventing environmental pollution and protecting human health.

[0013] As a further improvement to the above technical solution, the exhaust gas absorption device is internally connected to one or more of the following structures: activated carbon adsorption column, liquid alkali tank, water tank, or molecular sieve.

[0014] As a further improvement to the above technical solution, the chamber is respectively equipped with a backup valve and / or a pressure relief valve that connects to the interior of the chamber. The pressure relief valve can be used to relieve pressure inside the chamber, and the backup valve can be connected to an inert gas cylinder to provide inert gas for the reaction inside the chamber.

[0015] As a further improvement to the above technical solution, the chamber is equipped with a vacuum pressure gauge for detecting the internal vacuum level. This facilitates the monitoring of the pressure inside the chamber during the reaction process. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] 10. Box body; 11. Transparent panel; 20. Support; 21. Groove; 30. First adjusting rod; 40. Second adjusting rod; 50. Light source; 51. Buckle seat; 60. Sliding rail; 61. Adjusting block; 62. Fixing screw; 70. Lifting platform; 71. Electric heating plate; 80. Vacuum valve; 81. Spare valve; 82. Pressure relief valve; 90. Vacuum pressure gauge. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figure 1The vacuum light source reaction device includes a chamber 10. The left side of the chamber 10 is an anodized aluminum side door with reinforcing ribs around it. Even after the pressure inside the chamber 10 is maintained at 0.1 MPa for 12 hours, the door still maintains good sealing performance. The top of the chamber 10 has an opening, sealed with a transparent plate 11 made of quartz glass. The quartz glass allows light sources such as ultraviolet light to pass through, ensuring that ultraviolet light can enter the chamber 10 and induce free radical polymerization. The quartz glass is sealed to the opening at the top of the chamber 10, guaranteeing the internal airtightness of the chamber 10.

[0024] The front of the chamber 10 is a transparent tempered safety glass window, allowing observation of the interior of the chamber 10 and the reaction process within it. The other parts of the chamber 10 are made of 2-5mm thick stainless steel, with the inner surface made of mirror-polished stainless steel and treated for rust prevention. Preferably, the other parts of the chamber 10 are made of 3mm thick stainless steel plates to ensure the strength of the chamber 10 and to create a high-vacuum environment inside.

[0025] A sliding rail 60 is installed on one side of the housing 10. The sliding rail 60 is horizontally positioned, and an adjusting block 61 is slidably mounted on the sliding rail 60 in the horizontal direction. A support 20 is installed on the adjusting block 61. A groove 21 is formed on one side of the support 20, into which the adjusting block 61 can be inserted. A fixing screw 62 passes through the bottom of the support 20 and is threadedly connected to the support 20. One end of the fixing screw 62 passes through the groove 21 and abuts against the bottom of the adjusting block 61, thereby clamping the adjusting block 61 between the side wall of the groove 21 and one end of the fixing screw 62, allowing the support 20 to be detachably installed on the adjusting block 61.

[0026] A first adjusting rod 30 is rotatably mounted on the top of the support 20 via a first rotating shaft. A second adjusting rod 40 is rotatably mounted on the end of the first adjusting rod 30 away from the support 20 via a second rotating shaft. A latching seat 51 is rotatably mounted on the end of the second adjusting rod 40 away from the first adjusting rod 30, and a light source 50 is latched onto the latching seat 51. The light source 50 is located at the top of the chamber 10, and the light emitted by the light source 50 can pass through the transparent plate 11 into the chamber 10, thereby providing the conditions for a photoinduced reaction within the chamber 10.

[0027] The light source 50 includes a lamp holder, a lamp tube mounted on the lamp holder, and a lampshade covering the lamp tube. The lamp holder is equipped with hooks, which securely fasten the lamp holder to the latching seat 51 horizontally, ensuring the light source 50 is firmly installed and not easily falls off, while also facilitating quick installation and removal. The lampshade is a frustum structure, narrower at the top and wider at the bottom, consisting of side walls and a top wall. The side walls of the frustum structure are inclined at a 45-degree angle. The lampshade covers the transparent plate 11, allowing the light from the light source 50 to be focused inside the housing 10, improving the illumination effect of the light source 50. The light source 50 can be an ultraviolet (UV) light source, preferably emitting UV light with a wavelength in the range of 200nm-400nm, with a preferred wavelength of 256nm. The power of the UV light source is between 20 and 500 watts, with a preferred power of 100 watts.

[0028] The external light source design not only avoids the risk of lamp breakage due to negative pressure inside the vacuum chamber 10, ensuring the safety of the reaction, but also facilitates the disassembly of the light source 50 and the replacement of different suitable light sources. Furthermore, it facilitates the installation and removal of the light source 50. Simultaneously, the left and right position of the top light source 50 can be easily adjusted by swinging the first adjusting rod 30 on the side, thereby improving operational efficiency.

[0029] It is understandable that the rotational connection between the first adjusting rod 30 and the support 20, the rotational connection between the first adjusting rod 30 and the second adjusting rod 40, and the sliding connection between the adjusting block 61 and the sliding track 60 all have a certain damping force, so that the two can be maintained in the adjusted position after the force is applied.

[0030] Furthermore, a lifting platform 70 is installed inside the housing 10. The lifting platform 70 can be raised and lowered manually, by a motor, a cylinder, or a hydraulic cylinder. The lifting platform 70 allows for easy adjustment of the height of the reaction vessel placed on it, thereby adjusting the illumination distance between the reaction vessel and the light source 50. The illumination distance is adjustable within the range of 5-200 cm, facilitating the reception of appropriate ultraviolet radiation by the base film inside the reaction vessel. In other words, the distance is adjusted via the lifting platform 70 to meet the energy density requirements of the photoinduced free radical polymerization reaction, enabling film fixation and preventing film curling. An electric heating plate is installed inside the top plate of the lifting platform 70. This electric heating plate serves as a temperature control unit, allowing the surface temperature of the top plate of the lifting platform 70 to be adjustable within the range of 25 degrees Celsius to 200 degrees Celsius, ensuring that the ultraviolet-induced reaction proceeds at a suitable temperature.

[0031] Furthermore, the chamber 10 is provided with a vacuum extraction port, preferably a 16mm vacuum extraction port. A vacuum valve 80 is installed at the vacuum extraction port, connecting to the interior of the chamber 10. The vacuum valve 80 is connected to the extraction inlet of a vacuum pump via a vacuum tube, and a tail gas absorption device is installed at the extraction outlet of the vacuum pump. The vacuum pump has a power range of 250 watts to 1000 watts and is used to maintain the negative pressure reaction conditions inside the chamber 10.

[0032] The exhaust gas absorption device incorporates one or more of the following structures: an activated carbon adsorption column, a liquid alkali tank, a water tank, or a molecular sieve. Preferably, the exhaust gas absorption device uses an activated carbon adsorption column, installed in a two-stage series configuration. The activated carbon absorbs the organic gases within the chamber 10, ensuring no leakage of organic gases during the experiment and thus guaranteeing environmental safety. In other embodiments, the exhaust gas absorption device can also be installed in a vacuum tube, i.e., positioned between the vacuum pump and the vacuum valve 80.

[0033] In addition, the housing 10 can be equipped with vacuum vents of different diameters, each with a corresponding vacuum valve 80. The diameter of the vacuum vent can range from 12mm to 40mm, such as 12mm, 16mm, and 25mm vacuum vents, to accommodate different specifications of vacuum pumps and meet the vacuum pressure requirements within the housing 10. In use, if only one vacuum valve 80 is used, the other vacuum valves 80 can also be used as venting valves for pressure relief.

[0034] Furthermore, the housing 10 is also equipped with a spare valve 81 and a pressure relief valve 82 that connect to the interior of the housing 10. The pressure relief valve 82 facilitates the pressure relief of the housing 10. The spare valve 81 can be used to connect to an inert gas cylinder to fill the housing 10 with inert gas, providing an inert gas environment for the reaction inside the housing 10.

[0035] Furthermore, the enclosure 10 is also equipped with a vacuum pressure gauge 90, which is used to detect the vacuum level or pressure value inside the enclosure 10. The vacuum level measurement range is -100KPa to 0KPa.

[0036] In the reaction apparatus of this embodiment, the specific implementation steps are as follows:

[0037] (1) Sample preparation: Place the sample on the top plate of the lifting platform 70 inside the box 10. Adjust the position of the light source 50 and the center of the top plate by moving the adjustment block 61 and swinging the first adjustment rod 30. Adjust the distance between the sample and the light source by the lifting platform 70, set the temperature of the top plate of the lifting platform 70, turn on the heating and set the termination temperature.

[0038] (2) Check the airtightness of the device: Open the vacuum valve 80, close the door of the chamber 10, close the standby valve 81 and the pressure relief valve 82, and turn on the vacuum pump to keep the vacuum pressure inside the chamber 10 at -100MPa and the vacuum degree does not decrease.

[0039] (3) Turn on the power of the light source lamp 50. After the chemical reaction is induced to complete, turn off the power of the light source lamp 50 (when the reaction conditions require inert gas, inert gas is introduced into the box 10 through the spare valve 81).

[0040] (4) Turn off the vacuum pump, open the pressure relief valve 82 to release the pressure to the ambient pressure, open the chamber door 10, and take out the sample.

[0041] The reaction apparatus of this embodiment has the following advantages:

[0042] 1. An external light source is used to avoid the risk of lamp breakage in a vacuum environment when the ultraviolet lamp is built in. At the same time, the support 20 is connected to the housing 10 by a sliding rail 60, and the distribution of the first adjusting rod 30 and the second adjusting rod 40 facilitates adjustment of the lamp source's front-back and left-right positions.

[0043] 2. The organic gases inside the chamber 10 are adsorbed by the exhaust gas absorption device. At the same time, two-stage series adsorption is adopted to prevent environmental pollution and protect human health.

[0044] 3. With the detachable design of the light source, the light source 50 is connected to the second adjustment rod 40 by a snap-fit, and the support is detachably connected to the adjustment block 61, which makes it easy to replace the ultraviolet light source with different wavelengths and can meet the requirements of different photoinduced reaction conditions.

[0045] 4. The distance to the light source is controlled by designing a built-in lifting platform 70, thereby indirectly controlling the light intensity; the lifting platform 70 has a built-in electric heating plate 71 to control the surface temperature and provide the temperature conditions required for the reaction.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A vacuum light source reaction device, characterized in that, include: The box (10) has a transparent panel (11) on the top and a support (20) is installed on one side of the box (10); The first adjusting rod (30) is rotatably mounted on the support (20); The second adjusting rod (40) is rotatably mounted on the end of the first adjusting rod (30) away from the support (20); A light source (50) is rotatably mounted on the end of the second adjusting rod (40) away from the first adjusting rod (30), and the light source (50) can be positioned above the transparent plate (11).

2. The vacuum light source reaction device according to claim 1, characterized in that: A horizontally arranged sliding rail (60) is installed on one side of the housing (10), and an adjusting block (61) is slidably arranged on the sliding rail (60). The support (20) is installed on the adjusting block (61).

3. The vacuum light source reaction device according to claim 2, characterized in that: The support (20) has a groove (21) for the adjustment block (61) to be accommodated. The support (20) has a fixing screw (62) with one end inserted into the groove (21) and pressing against the adjustment block. The fixing screw (62) is threadedly connected to the support (20).

4. The vacuum light source reaction device according to claim 1, characterized in that: The second adjusting rod (40) is rotatably mounted with a buckle seat (51) at the end away from the first adjusting rod (30), and the light source (50) is snapped into the buckle seat (51).

5. The vacuum light source reaction device according to claim 1, characterized in that: The housing (10) is equipped with a lifting platform (70).

6. The vacuum light source reaction device according to claim 5, characterized in that: The top of the lifting platform (70) is equipped with an electric heating plate (71).

7. The vacuum light source reaction device according to claim 1, characterized in that: The housing (10) is provided with a vacuum valve (80) that connects to the inside of the housing (10). The vacuum valve (80) is used to connect to a vacuum pump. A tail gas absorption device is installed between the vacuum pump and the vacuum valve (80), or the exhaust outlet of the vacuum pump is connected to the tail gas absorption device.

8. The vacuum light source reaction device according to claim 7, characterized in that: The exhaust gas absorption device is internally connected to one or more of the following structures: activated carbon adsorption column, liquid alkali tank, water tank, or molecular sieve.

9. The vacuum light source reaction device according to claim 1, characterized in that: The housing (10) is respectively provided with a spare valve (81) and / or a pressure relief valve (82) that connects to the inside of the housing (10).

10. The vacuum light source reaction device according to claim 1, characterized in that: The housing (10) is equipped with a vacuum pressure gauge (90) for detecting the internal vacuum level.

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