Ultraviolet catalyst and TOC detection device
By combining a main UV lamp with a secondary UV lamp and a water-blocking plate, the UV catalyst design solves the problem of insufficient reaction in traditional UV catalysts, thus improving the accuracy and reliability of TOC detection results.
Patent Information
- Application Number
- CN202423221298.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional ultraviolet catalysts do not react sufficiently, leading to inaccurate TOC detection results.
The system employs a combination of a main UV lamp and multiple auxiliary UV lamps to create a comprehensive, multi-angle, and uniformly intense UV irradiation field. The design of a water-blocking plate extends the water sample's residence time and alters the flow path, while the UV catalytic coating enhances reaction uniformity.
This significantly improves the accuracy and reliability of TOC detection results, ensuring that more organic molecules can be fully oxidized and preventing unreacted water samples from flowing out of the catalyst.
Smart Images
Figure CN223678911U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of TOC detection equipment, in particular to an ultraviolet catalytic device and a TOC detection device. BACKGROUND
[0002] In the technical field of total organic carbon (TOC) detection technology, ultraviolet oxidation is a key step for converting organic carbon in a water sample into carbon dioxide for subsequent detection. A conventional ultraviolet catalytic device uses a 185nm and 254nm dual-wavelength ultraviolet lamp to irradiate water in a glass tube, so that organic matter in the water is rapidly oxidized and converted into inorganic carbon. However, the conventional ultraviolet catalytic device has the problem of insufficient reaction, which leads to inaccurate detection results. CONTENT OF THE INVENTION
[0003] Embodiments of the present application provide an ultraviolet catalytic device and a TOC detection device to improve the problem of insufficient reaction of the conventional ultraviolet catalytic device.
[0004] In a first aspect, embodiments of the present application provide an ultraviolet catalytic device, comprising:
[0005] a cylinder body having a catalytic cavity, a liquid inlet and a liquid outlet which are in communication with each other;
[0006] a main ultraviolet lamp arranged in the catalytic cavity;
[0007] a plurality of water-blocking pieces connected to the main ultraviolet lamp and arranged along an axial direction of the main ultraviolet lamp;
[0008] a plurality of auxiliary ultraviolet lamps arranged in the catalytic cavity and arranged along a circumferential direction of the main ultraviolet lamp to surround the water-blocking pieces and the main ultraviolet lamp.
[0009] In some embodiments of the present application, a surface of the water-blocking piece and / or an inner wall of the cylinder body is coated with an ultraviolet catalytic coating.
[0010] In some embodiments of the present application, the inner wall of the cylinder body is a frosted wall surface.
[0011] In some embodiments of the present application, the ultraviolet catalytic coating is a titanium dioxide coating or a mixed coating of carbon dioxide and zinc oxide.
[0012] In some embodiments of the present application, along a direction from the liquid inlet to the liquid outlet, an angle between the water-blocking piece and an axial surface of the main ultraviolet lamp is less than 90°.
[0013] In some embodiments of the present application, the water-blocking piece is provided with at least one through hole.
[0014] In some embodiments of the present application, the plurality of water-blocking pieces are arranged in a spiral along the axial direction of the main ultraviolet lamp.
[0015] In some embodiments of the present application, the surface of the main ultraviolet lamp and the surface of the auxiliary ultraviolet lamp are both sleeved with a quartz sleeve.
[0016] In some embodiments of the present application, the liquid inlet is arranged at one end of the cylinder in the axial direction, the liquid outlet is arranged on the axial side of the cylinder and close to the end of the cylinder away from the liquid inlet, the main ultraviolet lamp is arranged at the end of the cylinder away from the liquid inlet and extends along the axial direction towards the liquid inlet, the main ultraviolet lamp is columnar, and the main ultraviolet lamp is coaxial with the cylinder.
[0017] In the second aspect, the embodiments of the present application provide a TOC detection device, which comprises the ultraviolet catalytic device as described in the first aspect.
[0018] Therefore, the ultraviolet catalytic device disclosed by the embodiments of the present application has the following advantages. Firstly, the combination of the main ultraviolet lamp and the plurality of auxiliary ultraviolet lamps arranged along the circumference of the main ultraviolet lamp can form a full-range, multi-angle and more uniform intensity distribution ultraviolet irradiation field in the catalytic cavity. Such uniform and high-intensity ultraviolet irradiation environment greatly improves the excitation efficiency of organic matter in the water sample, so that more organic molecules can absorb enough ultraviolet energy to cause oxidation reaction, thereby effectively solving the problem of insufficient reaction caused by uneven or insufficient intensity of ultraviolet irradiation in the traditional ultraviolet catalytic device. Secondly, the plurality of water-blocking pieces are arranged along the axial direction of the main ultraviolet lamp. When the water sample flows into the catalytic cavity from the liquid inlet, the water-blocking pieces will block and guide the water sample. On the one hand, the flow rate of the water sample will be reduced under the blocking of the water-blocking pieces, thereby prolonging the residence time of the water sample in the catalytic cavity, so that the organic matter in the water sample has more time to fully contact with the ultraviolet and react. On the other hand, the interval arrangement of the water-blocking pieces changes the original single straight flow path of the water sample, so that the water sample forms a complex flow pattern such as baffle flow and turbulent flow, thereby increasing the uniformity of the distribution of the water sample in the catalytic cavity, avoiding the situation that the local water sample flows out of the catalytic device without sufficient reaction, and further improving the sufficiency and uniformity of the reaction, thereby significantly improving the accuracy and reliability of the TOC detection result. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0020] Figure 1A first perspective view of a cross section of a UV catalytic device according to an embodiment of the present application;
[0021] Figure 2 A first perspective view of a cross section of a UV catalytic device according to an embodiment of the present application; Figure 1 An enlarged view of part A in the above figure;
[0022] Figure 3 A second perspective view of a cross section of a UV catalytic device according to an embodiment of the present application.
[0023] Legend of reference signs:
[0024] 1, cylinder; 11, catalytic cavity; 12, liquid inlet; 13, liquid outlet; 2, main UV lamp; 3, water-blocking sheet; 31, UV catalytic coating; 32, through hole; 4, auxiliary UV lamp; 5, quartz sleeve. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, any other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0026] In the description of the present application, it should be understood that the words "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0027] Please refer to Figures 1 to 3 The embodiments of the present application provide a UV catalytic device, which comprises a cylinder 1, a main UV lamp 2, a plurality of water-blocking sheets 3 and a plurality of auxiliary UV lamps 4. The cylinder 1 is provided with a catalytic cavity 11, a liquid inlet 12 and a liquid outlet 13 which are in communication with each other. The main UV lamp 2 is arranged in the catalytic cavity 11. The plurality of water-blocking sheets 3 are connected with the main UV lamp 2, and the plurality of water-blocking sheets 3 are arranged along the axial direction of the main UV lamp 2. The plurality of auxiliary UV lamps 4 are arranged in the catalytic cavity 11 and arranged along the circumferential direction of the main UV lamp 2 to surround the water-blocking sheets 3 and the main UV lamp 2.
[0028] The technical scheme provided by the present application firstly combines the main ultraviolet lamp 2 with the plurality of auxiliary ultraviolet lamps 4 arranged along the circumference of the main ultraviolet lamp 2, so that a full-range, multi-angle and more uniform-intensity ultraviolet irradiation field can be formed in the catalytic cavity 11. Such uniform and high-intensity ultraviolet irradiation environment greatly improves the excitation efficiency of organic matter in the water sample, so that more organic matter molecules can absorb sufficient ultraviolet energy to cause oxidation reaction, effectively improving the problem of insufficient reaction caused by uneven or insufficient intensity of ultraviolet irradiation in the traditional ultraviolet catalyst. Secondly, the plurality of water-blocking pieces 3 are arranged along the axis of the main ultraviolet lamp 2, and when the water sample flows into the catalytic cavity 11 from the liquid inlet 12, the water-blocking pieces 3 will have a blocking and guiding effect on the water sample. On the one hand, the flow rate of the water sample will be reduced under the blocking of the water-blocking pieces 3, thereby prolonging the residence time of the water sample in the catalytic cavity 11, so that the organic matter in the water sample has more time to fully contact with the ultraviolet and react; on the other hand, the interval arrangement of the water-blocking pieces 3 changes the originally single straight flow path of the water sample, so that the water sample forms a complex flow pattern such as baffle flow and turbulent flow, thereby increasing the uniformity of the distribution of the water sample in the catalytic cavity 11, avoiding the situation that the local water sample flows out of the catalyst without sufficient reaction, and further improving the sufficiency and uniformity of the reaction, thereby significantly improving the accuracy and reliability of the TOC detection result.
[0029] In some embodiments, referring to Figure 1 and Figure 3 The barrel 1 is made of quartz glass material, which has good ultraviolet transmittance and chemical stability. The barrel 1 is in a cylindrical shape, and a liquid inlet 12 is formed at one end of the barrel 1. The liquid inlet 12 is connected to a supply source of the water sample to be detected through a connecting pipeline, which can be a corrosion-resistant silicone tube or a polytetrafluoroethylene tube. An outlet 13 is formed on the axial side of the barrel 1 near the end away from the liquid inlet 12, and the outlet 13 is connected to the related equipment of the subsequent TOC detection link through a suitable corrosion-resistant pipeline. The inner wall of the barrel 1 is ground to form a frosted wall surface, which can diffuse and reflect the ultraviolet light, making the reflection of the ultraviolet light in the barrel 1 more uniform, increasing the contact opportunity between the ultraviolet light and the water sample, improving the utilization efficiency of the ultraviolet light, and also increasing the area that the ultraviolet catalytic coating 31 can be coated.
[0030] In some embodiments, referring to Figure 1 and Figure 2The main ultraviolet lamp 2 is arranged at the central axis position of the barrel 1, and has a columnar structure and is coaxial with the barrel 1. The main ultraviolet lamp 2 adopts a high-intensity ultraviolet lamp tube with specific wavelengths of 185 nm and 254 nm. The design of the double wavelengths can effectively stimulate the oxidation reaction of different types of organic matter in the water sample. The surface of the main ultraviolet lamp 2 is sleeved with a quartz sleeve 5 with a thickness of 1-3 mm. The quartz sleeve 5 protects the main ultraviolet lamp 2 from being eroded by the water sample, and ensures that the ultraviolet light can smoothly penetrate and irradiate the surrounding environment.
[0031] In some embodiments, referring to Figure 2 and Figure 3 , a plurality of auxiliary ultraviolet lamps 4 are arranged in the circumferential direction of the main ultraviolet lamp 2 in the catalytic cavity 11, surrounding the water-blocking piece 3 and the main ultraviolet lamp 2. The number of auxiliary ultraviolet lamps 4 can be set according to the size of the barrel 1 and actual needs. In this embodiment, the number of auxiliary ultraviolet lamps 4 is 6. The auxiliary ultraviolet lamps 4 also adopt high-intensity ultraviolet lamp tubes with specific wavelengths of 185 nm and 254 nm, and the surfaces thereof are also sleeved with quartz sleeves 5 to ensure normal operation and effective propagation of ultraviolet light. The main ultraviolet lamp 2 and the auxiliary ultraviolet lamp 4 jointly build a strong and uniform ultraviolet irradiation network in the barrel 1, so that the water sample can receive sufficient ultraviolet irradiation regardless of its position in the catalytic cavity 11, thereby improving the initial rate and reaction degree of the oxidation reaction of organic matter.
[0032] In some embodiments, referring to Figure 1 and Figure 2 , a plurality of water-blocking pieces 3 are connected to the main ultraviolet lamp 2 and are arranged in the axial direction of the main ultraviolet lamp 2. In a preferred embodiment, the plurality of water-blocking pieces 3 are arranged in a spiral along the axial direction of the main ultraviolet lamp 2. In this way, as many water-blocking pieces 3 as possible can be arranged in the limited length of the main ultraviolet lamp 2 in the axial direction, and the spiral arrangement of the water-blocking pieces 3 does not significantly hinder the flow of the water sample compared to the 360° arrangement around the main ultraviolet lamp 2, thereby avoiding difficulties in the flow of the water sample. In addition, the spiral arrangement of the water-blocking pieces 3 can also prolong the flow path of the water sample. The angle between the water-blocking piece 3 and the axial surface of the main ultraviolet lamp 2 is less than 90° in the direction from the liquid inlet 12 to the liquid outlet 13, so that the water-blocking piece 3 can not only block the water sample and slow down the flow speed of the water sample, but also avoid excessive hindrance to the flow of the water sample, thereby avoiding excessively low flow efficiency of the water sample.
[0033] Further, referring to Figure 2 and Figure 3The water-blocking sheet 3 is coated with a UV catalytic coating 31, which can be a titanium dioxide coating or a mixed coating of titanium dioxide and zinc oxide. Exemplarily, the UV catalytic coating 31 can be prepared by mixing photocatalysts such as titanium dioxide and zinc oxide in a certain proportion and using a special sol-gel method, which can effectively promote the oxidative decomposition reaction of organic matter under UV irradiation. When UV irradiates the water-blocking sheet 3 coated with the catalytic coating, the catalytic coating can generate active substances such as free radicals with strong oxidizing properties under the excitation of UV, accelerating the decomposition and oxidation reaction of organic matter in the water sample. At the same time, the inner wall of the cylinder body 1 is also coated with the same or similar UV catalytic coating 31, further enhancing the catalytic oxidation capacity in the entire catalytic cavity 11, and solving the problem of insufficient reaction of traditional UV catalysts from multiple aspects to improve the accuracy and reliability of TOC detection.
[0034] The embodiments of the present application also provide a TOC detection device comprising the UV catalyst described in any of the preceding embodiments. Since the TOC detection device comprises the UV catalyst, the TOC detection device has the same beneficial effects as the UV catalyst, which will not be described here.
[0035] The foregoing detailed description has been described above, and it is obvious to those skilled in the art that the foregoing detailed description is only an example and does not constitute a limitation of the present application. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.
[0036] At the same time, specific words are used in the present application to describe the embodiments of the present application. As "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "one alternative embodiment" mentioned in different places in the specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of the present application can be properly combined.
[0037] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.
[0038] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this application, the entire contents of that patent application are incorporated herein by reference, except for historical application documents that are inconsistent with or conflict with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or subsequently appended to this application). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or terminology used in the supplementary materials of this application and the content of this application, the descriptions, definitions, and / or terminology used in this application shall prevail.
[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An ultraviolet catalyst characterized by comprising: The application relates to a catalytic device for water purification, which comprises: a cylinder body provided with a catalytic cavity, a liquid inlet and a liquid outlet which are communicated with each other; a main ultraviolet lamp arranged in the catalytic cavity; a plurality of water-blocking pieces connected with the main ultraviolet lamp and arranged along the axial direction of the main ultraviolet lamp; a plurality of auxiliary ultraviolet lamps arranged in the catalytic cavity and arranged along the circumferential direction of the main ultraviolet lamp to surround the water-blocking pieces and the main ultraviolet lamp.
2. The UV catalyst according to claim 1, characterized in that The surface of the water-blocking pieces and / or the inner wall of the cylinder body is coated with an ultraviolet catalytic coating.
3. The UV catalyst of claim 2, wherein The inner wall of the cylinder body is a frosted wall surface.
4. The UV catalyst of claim 2, wherein The ultraviolet catalytic coating is a titanium dioxide coating or a mixed coating of carbon dioxide and zinc oxide.
5. The UV catalyst of claim 1, wherein The angle between the water-blocking pieces and the axial surface of the main ultraviolet lamp is less than 90 degrees along the direction from the liquid inlet to the liquid outlet.
6. The UV catalyst of claim 1, wherein The water-blocking pieces are provided with at least one through hole.
7. The UV catalyst of claim 1, wherein The water-blocking pieces are arranged in a spiral along the axial direction of the main ultraviolet lamp.
8. The UV catalyst of claim 1, wherein, The surface of the main ultraviolet lamp and the surface of the auxiliary ultraviolet lamp are both sleeved with quartz sleeves.
9. The UV catalyst according to any one of claims 1 to 8, characterized in that, The liquid inlet is arranged at one end of the cylinder body in the axial direction, the liquid outlet is arranged on the axial side of the cylinder body and close to the end of the cylinder body away from the liquid inlet, the main ultraviolet lamp is arranged at the end of the cylinder body away from the liquid inlet and extends along the axial direction towards the liquid inlet, the main ultraviolet lamp is columnar, and the main ultraviolet lamp is coaxial with the cylinder body.
10. A TOC detection apparatus characterized by comprising: The application further relates to a water purification device comprising the catalytic device as claimed in any one of claims 1 to 9.