A quartz tube reaction device with internal components
By designing a quartz tube-type reaction device with internal components, the problems of insufficient light field and temperature control were solved, achieving efficient and stable operation of the photocatalytic reaction, and improving product selectivity and device lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU MOLOT CHEM TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-30
AI Technical Summary
Existing quartz tubular reactors suffer from problems such as insufficient light field control, limited temperature control, poor adaptability of internal components, and low system integration, resulting in low reaction efficiency, poor product selectivity, and high operation and maintenance costs.
A quartz tube-type reaction device with internal components was designed. The internal components and light source control components are made of quartz material, and a dual temperature control system is constructed to achieve uniform light radiation and integrated internal components. The sealing end cap assembly is integrated to improve assembly accuracy and sealing performance.
It improves the overall conversion rate and product selectivity of photocatalytic reactions, reduces temperature gradient and operation and maintenance costs, and extends the service life of the device.
Smart Images
Figure CN224422833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photocatalytic synthesis technology, specifically to a quartz tube reaction device with internal components. Background Technology
[0002] Quartz tubular reactors, with their advantages of good temperature resistance, high chemical stability, and high light transmittance, are widely used in photocatalytic synthesis, continuous synthesis of fine chemicals, and other fields, and have become core equipment.
[0003] The existing design still has many technical pain points: insufficient light field control, external light source attenuation due to radial attenuation and internal light source arrangement defects leading to uneven light intensity inside the tube, the reaction efficiency is limited by "over-reaction at the edges and underutilization of the center"; single temperature control, relying only on the outer heat exchange jacket, the radial and axial temperature gradients inside the tube are large, and the heat of the light source and the heat of reaction are not handled in a coordinated manner, the temperature fluctuation affects the product selectivity; poor compatibility of internal components, metal internal components have poor light shielding and corrosion resistance, ceramic internal components have weak light transmission and low strength, and rigid assembly is prone to quartz tube brittleness or sealing failure due to thermal expansion and contraction; low system integration, the separate design of light source, heat exchange, and internal components leads to poor assembly accuracy, mutual interference between light-heat-flow field, frequent disassembly and assembly also increases operation and maintenance costs, making it difficult to meet the requirements of efficient and stable reaction. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model designs a quartz tube reaction device with internal components, including: a sealed end cap assembly, a quartz tube nesting assembly, and a light source control assembly; the sealed end cap assembly includes: an upper cover body and a lower cover body; the upper cover body and the lower cover body are respectively sealed and connected to both ends of the quartz tube nesting assembly; the light source control assembly is disposed inside the quartz tube nesting assembly.
[0005] Preferably, the quartz tube nesting assembly includes: a quartz tube heat exchange jacket, a quartz cylinder, and a quartz tube with internal components; wherein, the quartz tube heat exchange jacket is sleeved on the outside of the quartz cylinder; there are multiple quartz tubes with internal components, which are evenly arranged between the quartz tube heat exchange jacket and the quartz cylinder; both axial ends of the quartz tube heat exchange jacket, the quartz cylinder, and the quartz tube with internal components are sealed to the upper cover and the lower cover of the device.
[0006] Preferably, the quartz tube with internal components has quartz internal components inside its cavity. The internal components are staggered turbulence ridges or porous sieve plates, which are integrally sintered with the tube body.
[0007] Preferably, the inner diameter of the quartz tube with internal components is 10mm-100mm and the axial length is 50mm-500mm.
[0008] Preferably, an annular heat exchange cavity is formed between the inner wall of the quartz tube heat exchange jacket and the outer wall of the quartz cylinder. The inlet and outlet of the heat exchange cavity are respectively located on the upper cover and the lower cover of the device and are connected to external temperature control equipment.
[0009] Preferably, the light source control component includes: a light source heat exchanger and a light source strip; wherein, the light source heat exchanger is disposed on the inner side of the quartz cylinder; and the light source strip is disposed on the outer side of the light source heat exchanger.
[0010] Preferably, the heat exchanger of the light source is a hollow tubular structure, with its two axial ends penetrating the upper cover and lower cover of the device, respectively. It has a heat exchange medium flow channel inside, with a flow channel diameter of 5mm-20mm.
[0011] Preferably, the light source strip is a flexible LED strip, and the light source strip is spirally arranged on the outside of the light source heat exchanger.
[0012] Preferably, the sealing connection between the upper cover and the lower cover of the device and the quartz tube nesting assembly is provided with a quartz sealing ring, the sealing ring having a thickness of 2mm-5mm, and is fastened by flange bolts.
[0013] Compared with the closest existing technology, the beneficial effects of this utility model are as follows:
[0014] 1. In the quartz tube nested assembly of this utility model, the quartz tube heat exchange jacket and the quartz cylinder form an annular heat exchange cavity. Combined with the independent heat exchange channel of the light source heat exchanger, a dual temperature control system of "outer layer macroscopic temperature control + inner layer light source heat dissipation" is constructed. The annular heat exchange cavity is connected to external temperature control equipment through inlets and outlets, enabling rapid response to changes in reaction heat. The light source heat exchanger specifically addresses the interference of light source heating on the reaction zone, effectively reducing radial and axial temperature gradients, avoiding side reactions caused by local overheating or insufficient temperature, and improving product selectivity.
[0015] 2. In the light source control component of this utility model, the light source strip is spirally arranged on the outside of the light source heat exchanger and located inside the quartz cylinder. This allows the light to be evenly radiated to multiple quartz tubes with internal components on the outside, avoiding the radial attenuation caused by traditional external light sources or the light intensity differences caused by the chaotic arrangement of internal light sources. At the same time, the quartz tubes with internal components and the internal components do not block the light, ensuring that the reaction zone receives sufficient light, solving the problem of "over-reaction at the edges and insufficient reaction in the center," and improving the overall conversion rate of the photocatalytic reaction.
[0016] 3. The internal components of the quartz tube with internal components of this utility model are made of quartz material and are integrally sintered with the tube body. This avoids the light-blocking and corrosion problems of metal internal components and solves the defects of low strength and brittleness of ceramic internal components. At the same time, the internal components are designed as turbulent ridges or porous sieve plates, which can enhance material agitation and prolong residence time. While improving mass transfer efficiency, they also match the thermal expansion coefficient of the quartz tube, reducing the risk of sealing failure caused by rigid connections.
[0017] 4. The device of this utility model integrates the quartz tube nesting assembly and the light source control assembly into a coaxial nested structure through a sealed end cap assembly. All components are axially sealed, avoiding problems such as poor assembly precision and flow field interference inherent in traditional separate designs. The quartz sealing ring and flange connection method are adapted to thermal expansion and contraction characteristics, ensuring long-term sealing performance. Simultaneously, the integrated structure reduces the number of disassembled parts, lowers the risk of quartz tube breakage, and significantly improves the device's ease of maintenance and service life. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the quartz tube reaction device with internal components of this utility model.
[0019] Figure 2 This is a first cross-sectional view of the quartz tube reaction device with internal components of this utility model.
[0020] Figure 3 This is a second cross-sectional view of the quartz tube reaction device with internal components of this utility model.
[0021] Figure label:
[0022] 1-Upper cover of the device, 2-Quartz tube heat exchange jacket, 3-Quartz cylinder, 4-Quartz tube with internal components, 5-Lower cover of the device, 6-Light source heat exchanger, 7-Light source lamp strip. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1
[0024] like Figures 1-3As shown, this utility model provides a quartz tube reaction device with internal components, including: a sealed end cap assembly, a quartz tube nesting assembly, and a light source control assembly; the sealed end cap assembly includes: an upper cover 1 and a lower cover 5; the upper cover 1 and the lower cover 5 are respectively sealed to both ends of the quartz tube nesting assembly; the light source control assembly is disposed inside the quartz tube nesting assembly. The device integrates the quartz tube nesting assembly and the light source control assembly into a coaxial nested structure through the sealed end cap assembly, with each component axially sealed, avoiding problems such as poor assembly accuracy and flow field interference in traditional separate designs. The quartz sealing ring and flange connection method are adapted to the thermal expansion and contraction characteristics, ensuring long-term sealing performance; at the same time, the integrated structure reduces the number of disassembled parts, lowers the risk of quartz tube breakage, and significantly improves the ease of operation and maintenance and service life of the device.
[0025] In a preferred embodiment, the quartz tube nesting assembly includes: a quartz tube heat exchange jacket 2, a quartz cylinder 3, and a quartz tube 4 with internal components; wherein, the quartz tube heat exchange jacket 2 is sleeved on the outside of the quartz cylinder 3; there are multiple quartz tubes 4 with internal components, and the multiple quartz tubes 4 with internal components are evenly arranged between the quartz tube heat exchange jacket 2 and the quartz cylinder 3; both axial ends of the quartz tube heat exchange jacket 2, the quartz cylinder 3, and the quartz tubes 4 with internal components are sealed to the upper cover 1 and the lower cover 5 of the device.
[0026] In a preferred embodiment, the quartz tube 4 with internal components has quartz internal components inside its cavity. These internal components are staggered, turbulent ridges or porous sieve plates, integrally sintered with the tube body. The use of quartz material for the internal components of the quartz tube with internal components, integrally sintered with the tube body, avoids the light-blocking and corrosion problems associated with metal internal components, and solves the defects of low strength and fragility associated with ceramic internal components. Simultaneously, the design of the internal components as turbulent ridges or porous sieve plates enhances material agitation and prolongs residence time, improving mass transfer efficiency while matching the thermal expansion coefficient of the quartz tube, reducing the risk of seal failure caused by rigid connections.
[0027] In a preferred embodiment, the inner diameter of the quartz tube 4 with internal components is 10mm-100mm, and the axial length is 50mm-500mm.
[0028] In a preferred embodiment, an annular heat exchange cavity is formed between the inner wall of the quartz tube heat exchange jacket 2 and the outer wall of the quartz cylinder 3. The inlet and outlet of the heat exchange cavity are respectively located on the upper cover 1 and the lower cover 5 of the device, and are connected to an external temperature control device. In the nested quartz tube assembly, the quartz tube heat exchange jacket and the quartz cylinder form an annular heat exchange cavity, which, together with the independent heat exchange channel of the light source heat exchanger, constructs a dual temperature control system of "outer layer macroscopic temperature control + inner layer light source heat dissipation". The annular heat exchange cavity is connected to the external temperature control device through the inlet and outlet, which can quickly respond to changes in reaction heat; the light source heat exchanger specifically solves the interference of light source heating on the reaction zone, effectively reduces the radial and axial temperature gradients, avoids side reactions caused by local overheating or insufficient temperature, and improves product selectivity.
[0029] In a preferred embodiment, the light source control assembly includes a light source heat exchanger 6 and a light source strip 7; wherein the light source heat exchanger 6 is disposed on the inner side of the quartz cylinder 3; and the light source strip 7 is disposed on the outer side of the light source heat exchanger 6.
[0030] In a preferred embodiment, the heat exchanger 6 is a hollow tubular structure with its two axial ends penetrating the upper cover 1 and the lower cover 5 of the device, respectively. It has a heat exchange medium flow channel inside, with a flow channel diameter of 5mm-20mm.
[0031] In a preferred embodiment, the light source strip 7 is an LED flexible light strip, and the light source strip 7 is spirally arranged on the outside of the light source heat exchanger 6.
[0032] In a preferred embodiment, a quartz sealing ring with a thickness of 2mm-5mm is provided at the sealing connection between the upper cover 1 and the lower cover 5 of the device and the quartz tube nesting assembly, and is fastened by flange bolts. In the light source control assembly, the light source strip is spirally arranged on the outside of the light source heat exchanger and located inside the quartz cylinder, so that the light can be evenly radiated to the multiple quartz tubes with inner components on the outside, avoiding the radial attenuation of traditional external light sources or the light intensity difference caused by the chaotic arrangement of internal light sources. At the same time, the quartz tubes with inner components and the inner components do not block the light, ensuring that the reaction zone is fully illuminated, solving the problem of "over-reaction at the edges and insufficient reaction in the center", and improving the overall conversion rate of the photocatalytic reaction.
[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0034] Furthermore, the terms "upper" and "lower" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "upper" or "lower" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0036] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of the claims of this utility model pending approval.
Claims
1. A quartz tube reaction device with internal components, characterized in that, include: Sealed end cap assembly, quartz tube nesting assembly, and light source control assembly; The sealing end cap assembly includes: an upper cover body (1) and a lower cover body (5); The upper cover (1) and the lower cover (5) of the device are respectively sealed and connected to both ends of the quartz tube nesting assembly; The light source control component is disposed inside the quartz tube nesting component; The quartz tube nesting assembly includes: a quartz tube heat exchange jacket (2), a quartz cylinder (3), and a quartz tube with internal components (4); The quartz tube heat exchange jacket (2) is sleeved on the outside of the quartz cylinder (3); The number of the quartz tubes (4) with internal components is multiple, and the multiple quartz tubes (4) with internal components are evenly arranged between the quartz tube heat exchange jacket (2) and the quartz cylinder (3); The axial ends of the quartz tube heat exchange jacket (2), the quartz cylinder (3) and the quartz tube with internal components (4) are all sealed to the upper cover (1) and the lower cover (5) of the device. The light source control component includes: a light source heat exchanger (6) and a light source strip (7); The light source heat exchanger (6) is located inside the quartz cylinder (3); The light source strip (7) is disposed on the outside of the light source heat exchanger (6); The heat exchanger (6) of the light source is a hollow tubular structure, with its two axial ends penetrating the upper cover (1) and the lower cover (5) of the device respectively. It is equipped with a heat exchange medium flow channel with a flow channel diameter of 5mm-20mm. The light source strip (7) is an LED flexible light strip, and the light source strip (7) is spirally arranged on the outside of the light source heat exchanger (6).
2. The quartz tube reaction device with internal components as described in claim 1, characterized in that, The quartz tube (4) with internal components has quartz internal components inside its cavity. The internal components are staggered turbulence ridges or porous sieve plates, which are integrally sintered with the tube body.
3. The quartz tube reaction device with internal components as described in claim 1, characterized in that, The inner diameter of the quartz tube (4) with internal components is 10mm-100mm, and the axial length is 50mm-500mm.
4. The quartz tube reaction device with internal components as described in claim 1, characterized in that, The inner wall of the quartz tube heat exchange jacket (2) and the outer wall of the quartz cylinder (3) form an annular heat exchange cavity. The inlet and outlet of the heat exchange cavity are respectively located on the upper cover (1) and the lower cover (5) of the device, and are connected to the external temperature control equipment.
5. The quartz tube reaction device with internal components as described in claim 1, characterized in that, The upper cover (1) and lower cover (5) of the device are provided with quartz sealing rings at the sealing connection with the quartz tube nesting assembly. The thickness of the sealing rings is 2mm-5mm, and they are fastened by flange bolts.