Secondary condensation photocatalytic reactor with integrating sphere-like structure

Abstract

The utility model discloses a secondary condensation photocatalytic reactor with an integrating sphere-like structure. The device mainly comprises an outer flange plate, a reaction liquid outlet, an inner flange plate, a photocatalyst, a left surface of a primary reflection mirror surface, a right surface of the primary reflection mirror surface, a supporting frame, a left surface of a secondary reflection mirror surface, a right surface of the secondary reflection mirror surface, an opening groove, a transparent inner container, a heat absorption pipe and a reaction liquid inlet. The structure of a traditional secondary condenser is designed and adjusted, light absorption of the reactor caused by shadows can be effectively avoided, escape of light entering the heat absorption tube can be restrained through the heat absorption tube designed according to the similar integrating sphere principle, the optical efficiency of the photocatalytic reactor is improved, in addition, a photocatalyst is fixed to the outer wall of the heat absorption tube, and the photocatalytic effect is improved. The contact area between the catalyst and reaction liquid can be effectively increased, and the photocatalytic reaction process is promoted.

Description

Technical Field

[0001] This utility model relates to the field of solar photocatalysis, and more specifically to a secondary focusing photocatalytic reactor with a sphere-like structure. Background Technology

[0002] Solar photocatalysis technology has been widely used in fields such as industrial wastewater treatment, organic matter degradation, and high-value conversion of nitrates due to its simple operation, low cost, and renewable solar energy.

[0003] However, solar photocatalysis technology still has certain limitations in practical applications, such as uneven solar energy distribution and low energy flux density, resulting in low solar energy utilization efficiency. In addition, some studies have made photocatalytic materials into photocatalytic reactors, but due to the structural design and the low light transmittance of the photocatalytic materials, the optical efficiency in the photocatalytic reactor is lost.

[0004] Therefore, how to design a photocatalytic reactor that can enhance solar flux density, improve solar energy utilization efficiency, and reduce optical loss has become one of the technical challenges that many forward-thinking researchers in this field urgently need to solve. Summary of the Invention

[0005] In view of this, this invention proposes a secondary focusing photocatalytic reactor with an integral sphere-like structure. The secondary focusing design not only enhances the solar energy flux density of the photocatalytic reaction process but also avoids the shading problems caused by traditional trough-type or dish-type focusing absorber units. Furthermore, by using an absorber tube with an integral sphere-like structure as the core unit of the photocatalytic reaction, once light enters the absorber tube through the opening, it cannot escape, effectively improving the system's optical efficiency.

[0006] This utility model will be achieved through the following technical solution: A secondary focusing photocatalytic reactor with a quasi-integral sphere structure mainly includes an outer flange, a reaction liquid outlet, an inner flange, a photocatalyst, the left side of the primary reflector, the right side of the primary reflector, a support frame, the left side of the secondary reflector, the right side of the secondary reflector, an opening groove, a transparent inner liner, a heat absorption tube, a reaction liquid inlet, and some necessary engineering installation accessories.

[0007] Traditional two-stage reflector condensers inevitably produce a shadowed area in the central region, which severely affects the condenser's optical efficiency. This invention proposes a split-focus method. Based on the original secondary condenser structure, the right side of the primary reflector and the left side of the secondary reflector are treated as a set of confocal surfaces and shifted to the left by a distance. This lateral shift effectively eliminates the influence of the shadowed area.

[0008] After ensuring the existence of no obstructed areas, in order to further utilize the concentrated light, a heat-absorbing tube matching the size of the aforementioned concentrator was designed using the principle of an integrating sphere. A light-transmitting slot was cut on the surface of the heat-absorbing tube. The size of this slot allows all the concentrated light to enter. After entering, the light will undergo one or more reflections inside the heat-absorbing tube, but no light will escape.

[0009] The position of the reaction liquid outlet and the position of the opening groove are both directly above the axial direction of the heat absorption tube, and the height of the reaction liquid outlet is the same as the height of the opening groove. This ensures that the reaction liquid flows out smoothly from the reaction liquid outlet.

[0010] In addition, since the solution has the ability to absorb light, in order to maximize the ability of the photocatalyst coating at the bottom of the heat absorber to receive light and complete the photocatalytic process, an inner tube with excellent light transmittance is fixed inside the heat absorber to ensure the stability of light propagation.

[0011] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0012] 1. The structure of the concentrator was designed to overcome the influence of shadow areas on the light received by the device, effectively improving the concentrating performance of the device.

[0013] 2. By using the integrating sphere principle to cut a light-transmitting groove on the surface of the heat absorber to match the concentrator, it is possible to ensure that all the concentrated light enters the heat absorber and effectively suppress light escape, thereby improving the optical efficiency of the device.

[0014] 3. An inner tube with excellent light transmittance is fixed inside the heat absorber tube to avoid the influence of solution thickness on light propagation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This invention presents a schematic diagram of the overall structure of a secondary focusing photocatalytic reactor with a near-integral sphere structure.

[0017] Figure 2 This utility model discloses a top view of a secondary focusing photocatalytic reactor with a near-integral sphere structure.

[0018] Figure 3This utility model discloses a cross-sectional view of a secondary focusing photocatalytic reactor with a near-integral sphere structure.

[0019] Figure 4 This utility model discloses a schematic diagram of the flange structure of a secondary focusing photocatalytic reactor with a quasi-integral sphere structure.

[0020] Figure 5 This invention discloses a schematic diagram of the inner tube of a secondary focusing photocatalytic reactor with a quasi-integral sphere structure.

[0021] Figure 6 : A schematic diagram of the light trajectory of a secondary focusing photocatalytic reactor with a near-integral sphere structure proposed in this utility model; Detailed Implementation

[0022] This utility model discloses a secondary focusing photocatalytic reactor with a quasi-spherical structure. The utility model will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a secondary focusing photocatalytic reactor with a quasi-integral sphere structure is mainly composed of an outer flange (1), a reaction liquid outlet (2), an inner flange (3), a photocatalyst (4), the left side (5-1) and the right side (5-2) of the primary reflector, a support frame (6), the left side (7-1) and the right side (7-2) of the secondary reflector, an opening groove (8), a transparent inner liner (9), a heat absorption tube (10), a reaction liquid inlet (11), and some other necessary engineering parts.

[0023] Holes are made at the same positions on the outer flange (1) and the inner flange (3), and are connected and stabilized by fixing structures such as nuts. The reaction liquid outlet (2) is fixed on the outer flange (1).

[0024] The position of the opening groove (8) is directly above the axial direction of the heat absorption tube (10). The position of the reaction liquid outlet (2) is flush with the position of the opening groove (8). When the reaction liquid is discharged into the heat absorption tube (10) from the reaction liquid inlet (11), as the liquid level rises, it becomes flush with the height of the opening groove (8). Then the reaction liquid is discharged from the reaction liquid outlet (2).

[0025] The left side (5-1) and the right side (5-2) of the primary reflector are fixed to both ends of the opening slot (8) by means of nuts, adhesive, welding, etc.

[0026] The heat absorber tube (10) is the core of the photocatalytic reaction. The transparent inner liner (9) inside it is sealed at both ends. The right end of the heat absorber tube (10) is glued together with the right end of the transparent inner liner (9). The photocatalyst (4) is located on the inner wall of the heat absorber tube (10). The way the photocatalyst (4) is loaded includes, but is not limited to, first depositing it on the surface of the PET film, then cutting the PET film with the photocatalyst into the same shape as the heat absorber tube (10) and placing it in the heat absorber tube (10), or directly spraying it into the heat absorber tube (10) by spraying.

[0027] The support frame (6) is fixed to both ends of the heat absorption tube (10) using connecting tools such as nuts, and the left side (7-1) and right side (7-2) of the secondary reflector are fixed on the support frame (6).

[0028] like Figure 6 As shown, taking the light on the left as an example, when the light enters the left side of the primary reflector (5-1), after being focused once, the light reaches the right side of the secondary reflector (7-2). After being focused twice, the light enters the interior of the heat-absorbing tube (10) from the left side of the opening slot (8) and undergoes one or more reflections until the light is completely absorbed.

Claims

1. A secondary focusing photocatalytic reactor with a near-spherical structure, characterized in that, It mainly consists of an outer flange (1), a reaction liquid outlet (2), an inner flange (3), a photocatalyst (4), the left side of the primary reflector (5-1), the right side of the primary reflector (5-2), a support frame (6), the left side of the secondary reflector (7-1), the right side of the secondary reflector (7-2), an opening groove (8), a transparent inner liner (9), a heat absorption tube (10), a reaction liquid inlet (11), and connecting parts.

2. The secondary focusing photocatalytic reactor with a near-spherical structure according to claim 1, characterized in that, The left side (5-1) and the right side (5-2) of the primary reflector are fixed on both sides of the opening slot (8).

3. The secondary focusing photocatalytic reactor with a near-spherical structure according to claim 1, characterized in that, The left side (7-1) and the right side (7-2) of the secondary reflector are fixed on the support frame (6), and the support frame (6) is fixed on the heat absorption tube (10).

4. A secondary focusing photocatalytic reactor with a near-spherical structure according to claim 1, characterized in that, The right end of the transparent inner liner (9) is fixed to the heat absorption tube (10), and both the left and right ends of the transparent inner liner (9) are sealed.

5. A secondary focusing photocatalytic reactor with a near-spherical structure according to claim 1, characterized in that, The photocatalyst (4) is fixed on the inner wall of the heat absorber tube (10).

6. A secondary focusing photocatalytic reactor with a near-spherical structure according to claim 1, characterized in that, The reaction liquid outlet (2) is fixed on the outer flange (1), and the height of the reaction liquid outlet (2) is consistent with the height of the opening groove (8).

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