Tubular photocatalytic reaction core

Abstract

The utility model belongs to photocatalytic water treatment device technical field discloses a kind of tubular photocatalytic reaction core, including tubular shell and reaction core main body, reaction core main body is installed inside tubular shell axially, and reaction core main body includes photocatalytic reaction film, and the both ends of photocatalytic reaction film are fixedly connected with the limiting strip slidingly sleeved in C-shaped limiting rod, and C-shaped limiting rod is fixedly connected on support cross bar, and the both ends of support cross bar are fixedly connected with vertical rod, and vertical rod is fixedly connected with ring type limiting piece, and ring type limiting piece is fixedly connected at the end of tubular shell;The utility model is simple in structure, easy to disassemble and assemble, easy to maintain, and the photocatalytic reaction film of double-sided load photocatalyst is used, the double-sided photocatalytic reaction film is easy to light, better to be illuminated and contacted with reactant, improve photocatalytic efficiency and purification effect, and the photocatalyst is loaded on the photocatalytic reaction film, easy to recover catalyst, through the cooperation of annular fixing piece and ring type limiting piece, it is easy to fix and disassemble, easy to maintain.

Description

Technical Field

[0001] This utility model relates to a tubular photocatalytic reaction core, belonging to the technical field of photocatalytic water treatment devices. Background Technology

[0002] Photocatalytic water purification technology is a new type of wastewater treatment method that has been developed in recent years. Compared with traditional water purification technologies, this technology can oxidize and decompose organic pollutants in water, rather than physically adsorbing them, and will not cause secondary pollution. Therefore, it has good application prospects in the field of wastewater treatment.

[0003] Currently, photocatalytic reactors can use either external or internal light sources for their reaction cores. While internal light sources offer higher irradiation efficiency, they are structurally complex, prone to contamination, and require power cables to pass through the reaction core, causing sealing issues. External light sources, on the other hand, have a simpler structure, are easier to maintain, and have greater application potential. Their structure is relatively simple, with illumination achieved through a transparent reaction core or a window, but their light energy utilization efficiency is low. To improve light energy utilization efficiency, some external light source reactor cores use a transparent shell, mixing the photocatalyst and wastewater together before passing it through the core. While this improves irradiation efficiency, the presence of the catalyst in the feed solution makes subsequent catalyst separation difficult. Therefore, external light source reactors require a tubular photocatalytic reaction core that fully utilizes the light source, facilitates the separation of the photocatalyst from the water, and has a simple structure. Utility Model Content

[0004] The purpose of this invention is to provide a tubular photocatalytic reaction core.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tubular photocatalytic reaction core, comprising a tubular shell and a reaction core body, wherein the reaction core body is axially installed inside the tubular shell, dividing the interior of the tubular shell into two water purification areas along the axis. The reaction core body includes multiple photocatalytic reaction membranes installed along the axial direction of the tubular shell. Limiting strips are fixedly connected to both ends of the photocatalytic reaction membranes. The surfaces of the limiting strips are slidably fitted into C-shaped limiting rods. The C-shaped limiting rods are fixedly connected to the upper surface of a supporting crossbar. Vertical rods are fixedly connected to both ends of the upper surface of the supporting crossbar. A ring-shaped limiting member is fixedly connected to the side of the vertical rod away from the photocatalytic reaction membrane by bolts. The ring-shaped limiting member is fixedly connected to the end of the tubular shell.

[0006] Preferably, an arc-shaped light-emitting window is provided on the outer wall of the upper part of the tubular shell, which is located on the same circle as the tubular shell. A light-transmitting plate is sealed and connected inside the light-emitting window, and an ultraviolet light source lamp can also be fixedly connected to the light-emitting window by adhesive bonding or bracket.

[0007] Preferably, annular fasteners are fixedly connected to both ends of the tubular shell. A limiting groove adapted to the annular limiting member is formed on the side of the annular fastener away from the tubular shell. The annular limiting member is slidably engaged in the limiting groove. The annular limiting member includes a limiting ring. A limiting vertical rod with its center located at the center of the limiting ring is fixedly connected to the inner wall of the limiting ring. The limiting vertical rod is fixedly connected to the side of the vertical rod away from the photocatalytic reaction membrane by bolts. A positioning block is fixedly connected to the outer wall of the limiting ring. A positioning groove adapted to the positioning block is formed on the inner wall of the limiting groove. The two annular fasteners at both ends of the tubular shell are respectively connected to an inlet pipe and an outlet pipe via flanges.

[0008] Preferably, the photocatalytic reaction membrane includes a substrate membrane, which is a flexible fiber cloth or a corrosion-resistant and tensile-resistant plastic film. Photocatalyst layers are loaded on both sides of the substrate membrane, and the distance between the photocatalyst layers and the limiting strip is 5-20 mm.

[0009] Preferably, the lower surface of the support crossbar slides and overlaps with the inner wall of the tubular shell.

[0010] Preferably, the outer wall of the supporting crossbar, the outer wall of the upright, the inner and outer walls of the C-shaped limiting rod, and the inner wall of the tubular shell are smooth surfaces or have a Teflon self-lubricating coating.

[0011] Preferably, the supporting crossbar, upright, and C-shaped limiting bar are made of stainless steel, ordinary steel with a Teflon corrosion-resistant coating, or corrosion-resistant hard plastic.

[0012] Preferably, the top end of the limiting strip is provided with a rubber buffer pad.

[0013] Preferably, the two ends of the C-shaped limiting rod are fixedly connected to two parallel flexible cables, and the lower end of the C-shaped limiting rod is provided with a sealing plate.

[0014] Preferably, the surface of the soft cable is smooth or has a Teflon self-lubricating coating, and the upper end of the C-shaped limiting rod is provided with a C-shaped buffer rubber pad, and the lower end is provided with a buffer rubber ring or buffer rubber pad.

[0015] Beneficial effects

[0016] This utility model's tubular photocatalytic reaction core has a simple structure, is easy to disassemble and assemble, and is easy to maintain. It adopts a photocatalytic reaction membrane with photocatalyst loaded on both sides, which allows the photocatalytic reaction membrane to be exposed to light from both sides, better receive light and contact the reactants, improve the photocatalytic efficiency of the reaction core, and improve the effect of water purification. The photocatalyst is loaded on the photocatalytic reaction membrane, which facilitates catalyst recovery. The combination of annular fixing parts and annular limiting parts facilitates fixing, disassembly and assembly, and maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side sectional view of the tubular shell structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the reaction core body in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0021] Figure 5 This is a cross-sectional schematic diagram of the connection between the photocatalytic reaction membrane and the C-shaped limiting rod in this utility model;

[0022] Figure 6 This is a schematic diagram of the C-shaped limiting rod in this utility model;

[0023] Figure 7 This is a cross-sectional schematic diagram of the C-shaped limiting rod in this utility model;

[0024] Figure 8 This is a schematic diagram showing the connection structure between the reaction core body and the ring-shaped limiting component in this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0026] In the diagram: 1. Tubular shell; 2. Reactor core body; 3. Ring-shaped limiting component; 11. Illumination window; 12. Ultraviolet light source lamp; 13. Ring-shaped fixing component; 14. Limiting groove; 21. Photocatalytic reaction membrane; 22. Limiting strip; 23. C-shaped limiting rod; 24. Supporting crossbar; 25. Vertical rod; 26. Soft cable; 31. Limiting ring; 32. Limiting vertical rod; 33. Positioning block; 211. Substrate membrane; 212. Photocatalyst layer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] like Figure 1-8As shown, this utility model provides a technical solution: a tubular photocatalytic reaction core, including a tubular shell 1 and a reaction core body 2. The tubular shell 1 is a circular tube structure, and the inner wall of the tubular shell 1 is a smooth surface or has a Teflon self-lubricating coating. The reaction core body 2 is axially installed inside the tubular shell 1, dividing the interior of the tubular shell 1 into two water purification areas along the axis. The reaction core body 2 includes multiple photocatalytic reaction membranes 21 installed along the axial direction of the tubular shell 1. The two ends of the photocatalytic reaction membranes 21 are fixedly connected to limiting strips 22. The surface of the limiting strips 22 is slidably sleeved in the C-shaped limiting rod 23. The C-shaped limiting rod 23 is fixedly connected to the upper surface of the supporting crossbar 24. The lower surface of the supporting crossbar 24 is slidably overlapped with the inner wall of the tubular shell 1. The two ends of the upper surface of the supporting crossbar 24 are respectively fixedly connected to uprights 25. The side of the uprights 25 away from the photocatalytic reaction membranes 21 is fixedly connected to an annular limiting member 3 by bolts. The annular limiting member 3 is fixedly connected to the end of the tubular shell 1.

[0030] Specifically, annular fasteners 13 are fixedly connected to both ends of the tubular shell 1. The side of the annular fastener 13 away from the tubular shell 1 has a limiting groove 14 that matches the annular limiting member 3. The annular limiting member 3 is slidably engaged in the limiting groove 14. The thickness of the annular limiting member 3 is 50-80% of the thickness of the annular fastener 41. The annular limiting member 3 includes a limiting ring 31. A limiting vertical rod 32 with its center located at the center of the limiting ring 31 is fixedly connected to the inner wall of the limiting ring 31. The limiting vertical rod 32 is fixedly connected to the side of the upright 25 away from the photocatalytic reaction membrane 21 by bolts. A positioning block 33 is fixedly connected to the outer wall of the limiting ring 31 to facilitate the installation of the photocatalytic reaction membrane 21 in a vertical state inside the tubular shell 1. A positioning groove that matches the positioning block 33 is opened on the inner wall of the limiting groove 14. The two annular fasteners 13 at both ends of the tubular shell 1 are respectively connected to an inlet pipe and an outlet pipe through flanges.

[0031] Specifically, an arc-shaped light-emitting window 11 is provided on the outer wall of the upper part of the tubular shell 1, which is located on the same circle as the tubular shell 1. A light-transmitting plate is sealed inside the light-emitting window 11. In this embodiment, the light-transmitting plate is made of quartz glass material that facilitates the transmission of ultraviolet light. An external ultraviolet light source lamp 12 for irradiating the photocatalytic reaction membrane 21 can also be fixedly connected to the light-emitting window 11 by adhesive bonding or bracket.

[0032] Specifically, the photocatalytic reaction membrane 21 includes a substrate membrane 211, which is a flexible fiber cloth or a corrosion-resistant and tensile-resistant plastic film. Photocatalyst layers 212 are loaded on both sides of the substrate membrane 211. In this embodiment, the photocatalyst is nano-sized titanium dioxide. The photocatalyst is loaded on the substrate membrane 211 by in-situ deposition or bonding. The flexible fiber cloth is preferably carbon cloth or non-woven cloth, and the corrosion-resistant and tensile-resistant plastic film is preferably polytetrafluoroethylene film or polyethylene film. The distance between the photocatalyst layer 212 and the limiting strip 22 is 5-20mm to prevent the C-shaped limiting rod 23 from wearing down the photocatalyst layer 212, causing the catalyst to leak into the water and affecting the water quality.

[0033] Specifically, the top of the limiting strip 22 is provided with a rubber buffer pad to prevent the limiting strip from colliding with the inner wall of the tubular housing 1. The limiting strip 22 can be a circular rod, an elliptical rod, a rectangular rod, a regular hexagonal rod, or a regular octagonal rod. In this embodiment, the limiting strip 22 is a circular rod.

[0034] Specifically, the outer walls of the supporting crossbar 24, the outer walls of the upright 25, the inner and outer walls of the C-shaped limiting rod 23, and the inner wall of the tubular housing 1 are smooth surfaces or have a Teflon self-lubricating coating. The supporting crossbar 24, the upright 25, and the C-shaped limiting rod 23 are made of elastic water-resistant materials (such as polyester, engineering plastics), stainless steel, ordinary steel with a Teflon corrosion-resistant coating, or corrosion-resistant hard plastic.

[0035] The working principle of this utility model is as follows: the main body 2 of the reaction core is slidably installed inside the tubular shell 1. The two ends of the tubular shell 1 are respectively connected to the inlet pipe and the outlet pipe through flanges. Wastewater that has undergone primary treatment such as flocculation and filtration enters the tubular shell 1 through the inlet pipe. The wastewater flows through both sides of the photocatalytic reaction membrane 21 located in the tubular shell 1. The light source (natural light is used during sunny days, and ultraviolet light source lamp 12 is turned on to supplement light or serve as a light source when the external light is insufficient, such as in cloudy weather or at night) shines on the photocatalyst layer 212 on both sides of the photocatalytic reaction membrane 21 through the light window 11 to carry out the photocatalytic reaction. The tubular photocatalytic reaction core of this utility model has a simple structure, is easy to disassemble and assemble, and is easy to maintain. It adopts a photocatalytic reaction membrane with photocatalyst loaded on both sides, which makes it easier for the photocatalytic reaction membrane to receive light from both sides, better receive light and contact the reactants, improve the photocatalytic efficiency of the reaction core, and improve the effect of purifying water. The photocatalyst is loaded on the photocatalytic reaction membrane, which is easy to recover the catalyst. The combination of the ring fixing part and the ring limiting part makes it easy to fix and disassemble, and easy to maintain.

[0036] Example 2:

[0037] like Figure 9As shown, this utility model provides a technical solution: a tubular photocatalytic reaction core, comprising a tubular shell 1 and a reaction core body 2. The tubular shell 1 has a circular tube structure. The reaction core body 2 is axially installed inside the tubular shell 1, dividing the interior of the tubular shell 1 into two water purification areas along the axis. The reaction core body 2 includes multiple photocatalytic reaction membranes 21 installed along the axial direction of the tubular shell 1. Limiting strips 22 are fixedly connected to both ends of the photocatalytic reaction membranes 21. The surfaces of the limiting strips 22 are slidably fitted into C-shaped limiting rods 23. The two ends of the C-shaped limiting rods 23... The two soft cables 26 are fixedly connected to each other. The two ends of the soft cables 26 are fixedly connected to the uprights 25. The two uprights 25 are fixedly connected to the sides away from the photocatalytic reaction membrane 21 by bolts. The lower end of the C-shaped limiting rod 23 is provided with a sealing plate to close the lower end of the C-shaped limiting rod 23 and prevent the limiting strip from sliding down. The surface of the soft cable 26 is a smooth surface or is provided with a Teflon self-lubricating coating. The upper end of the C-shaped limiting rod 23 is provided with a C-shaped buffer rubber pad and the lower end is provided with a buffer rubber ring or buffer rubber pad. Other structures are the same as in Example 1.

[0038] As an alternative, the soft cable 26 can be replaced with a rubber strip, a chain, or a chain rod formed by hinged multi-section straight rods.

[0039] As an alternative, the tubular shell 1 can be a rectangular tube, an elliptical tube, a regular hexagonal tube, or a regular octagonal tube.

[0040] As an alternative, the limiting strip 22 is a hollow rod.

Claims

1. A tubular photocatalytic reaction core, comprising a tubular shell (1) and a reaction core body (2), characterized in that: The reaction core body (2) is axially installed inside the tubular shell (1) and divides the interior of the tubular shell (1) into two water purification areas along the axis. The reaction core body (2) includes multiple photocatalytic reaction membranes (21) installed along the axis of the tubular shell (1). The two ends of the photocatalytic reaction membrane (21) are fixedly connected to limiting strips (22). The surface of the limiting strips (22) is slidably sleeved in the C-shaped limiting rod (23). The C-shaped limiting rod (23) is fixedly connected to the upper surface of the supporting crossbar (24). The two ends of the upper surface of the supporting crossbar (24) are respectively fixedly connected to uprights (25). The side of the uprights (25) away from the photocatalytic reaction membrane (21) is fixedly connected to a ring-type limiting member (3) by bolts. The ring-type limiting member (3) is fixedly connected to the end of the tubular shell (1).

2. The tubular photocatalytic reaction core according to claim 1, characterized in that: An arc-shaped light window (11) is provided on the outer wall of the upper part of the tubular shell (1) and is located on the same circle as the tubular shell (1). A light-transmitting plate is sealed inside the light window (11). An ultraviolet light source lamp (12) can also be fixedly connected to the light window (11) by adhesive bonding or bracket.

3. The tubular photocatalytic reaction core according to claim 1, characterized in that: Annular fasteners (13) are fixedly connected to both ends of the tubular shell (1). The annular fasteners (13) have a limiting groove (14) on the side away from the tubular shell (1) that is adapted to the annular limiting member (3). The annular limiting member (3) is slidably engaged in the limiting groove (14). The annular limiting member (3) includes a limiting ring (31). A center located on the inner wall of the limiting ring (31) is fixedly connected to the limiting ring (31). The limiting vertical rod (32) at the center of the circle is fixedly connected to the side of the upright (25) away from the photocatalytic reaction membrane (21) by bolts. The outer wall of the limiting ring (31) is fixedly connected to the positioning block (33). The inner wall of the limiting groove (14) is provided with a positioning groove that matches the positioning block (33). The two annular fasteners (13) at both ends of the tubular shell (1) are respectively connected to the water inlet pipe and the water outlet pipe through flanges.

4. The tubular photocatalytic reaction core according to claim 1, characterized in that: The photocatalytic reaction membrane (21) includes a substrate membrane (211), which is a flexible fiber cloth or a corrosion-resistant and tensile-resistant plastic film. The surfaces on both sides of the substrate membrane (211) are loaded with photocatalyst layers (212), and the distance between the photocatalyst layer (212) and the limiting strip (22) is 5-20 mm.

5. The tubular photocatalytic reaction core according to claim 1, characterized in that: The lower surface of the support crossbar (24) slides and overlaps with the inner wall of the tubular shell (1).

6. The tubular photocatalytic reaction core according to claim 1, characterized in that: The outer wall of the supporting crossbar (24), the outer wall of the upright (25), the inner and outer walls of the C-shaped limiting rod (23), and the inner wall of the tubular shell (1) are smooth surfaces or have a Teflon self-lubricating coating.

7. The tubular photocatalytic reaction core according to claim 1, characterized in that: The supporting crossbar (24), upright (25), and C-shaped limiting bar (23) are made of elastic water-resistant material, stainless steel, ordinary steel with a Teflon corrosion-resistant coating, or corrosion-resistant hard plastic.

8. The tubular photocatalytic reaction core according to claim 1, characterized in that: The top of the limiting strip (22) is provided with a rubber buffer pad.

9. A tubular photocatalytic reaction core according to claim 1, characterized in that: The two ends of the C-shaped limiting rod (23) are fixedly connected to two parallel soft cables (26), and the lower end of the C-shaped limiting rod (23) is provided with a sealing plate.

10. A tubular photocatalytic reaction core according to claim 9, characterized in that: The surface of the soft cable (26) is smooth or has a Teflon self-lubricating coating. The upper end of the C-shaped limiting rod (23) is provided with a C-shaped buffer rubber pad, and the lower end is provided with a buffer rubber ring or buffer rubber pad.

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