Array turbulent flow mixing reaction cavity

Abstract

The invention provides an array turbulent flow mixing reaction cavity. The array turbulent flow mixing reaction cavity comprises a reaction cavity body, an ultraviolet irradiation unit and a gas-liquid mixing unit, the reaction cavity is provided with a water flow inlet and a water flow outlet, and the inner wall of the reaction cavity is a light reflection surface; the ultraviolet irradiation unit comprises at least one ultraviolet lamp tube which is detachably mounted in the reaction cavity, and the axial direction of the ultraviolet lamp tube is perpendicular to the water flow direction; the gas-liquid mixing unit is arranged at the upstream of the water flow inlet and is formed by sequentially connecting a Venturi jet device and a turbulator, the Venturi jet device sucks and shears ozone into microbubbles by utilizing negative pressure of water flow, and the turbulator further forms vortex to realize deep mixing. Through vertical ultraviolet irradiation, two-stage ozone mixing and an inner wall light reflection structure, the ultraviolet action path is effectively prolonged, the gas-liquid mixing uniformity is enhanced, and the ultraviolet utilization rate is improved, so that the water treatment efficiency and the disinfection effect are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of water treatment, specifically to an array-type turbulent mixing reaction chamber. Background Technology

[0002] In the field of water treatment technology, utilizing the synergistic effect of ultraviolet light and ozone to disinfect water and degrade pollutants is an important method, widely used in homes, outdoor areas, and small-scale water treatment plants. Currently, existing ultraviolet-ozone mixing reaction devices mostly employ injection-type air intake and tower or direct-flow structures, with reaction chamber materials primarily made of tempered glass, anti-aging organic synthetic materials, or ordinary stainless steel. These existing technologies have several drawbacks: the water flow direction is usually parallel to the ultraviolet lamp tube, resulting in a short effective irradiation path; ozone bubbles introduced through the air injection port are large, leading to uneven mixing in direct-flow or tower-type conditions and low reaction efficiency; simultaneously, the number of ultraviolet lamps that can be installed in the chamber is fixed, making it difficult to adjust according to actual needs, easily resulting in insufficient disinfection intensity due to insufficient lamps or excessive energy waste due to excessive lamps, and improper design can easily create ultraviolet irradiation dead zones; furthermore, traditional chamber materials absorb or scatter ultraviolet light, leading to low ultraviolet utilization efficiency. These problems collectively result in unsatisfactory reaction efficiency of existing devices, and the water disinfection effect needs improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an array-based perturbation mixing reaction cavity, comprising: A reaction chamber, wherein a water inlet and a water outlet are provided on the reaction chamber, and the inner wall of the reaction chamber is a light-reflective surface; The ultraviolet irradiation unit includes at least one ultraviolet lamp tube detachably installed in the reaction chamber, wherein the axis of the ultraviolet lamp tube is perpendicular to the main flow direction of the water passing through the reaction chamber; A gas-liquid mixing unit is located upstream of the water inlet. The gas-liquid mixing unit includes a Venturi jet and a flow disruptor arranged sequentially along the water flow direction. The Venturi jet has an ozone inlet. When the water flows through, a negative pressure is generated at the throat of the Venturi jet to draw in ozone from the ozone inlet. The ozone is sheared into microbubbles and then initially mixed with the water flow. The flow disruptor is located downstream of the Venturi jet and is used to generate eddies in the initially mixed fluid for deep mixing.

[0004] Furthermore, the reaction chamber is provided with multiple lamp holder interfaces for installing the ultraviolet lamps, and the number and arrangement of the ultraviolet lamps can be configured according to processing requirements.

[0005] Furthermore, multiple lamp holder interfaces are arranged in an array on the reaction chamber.

[0006] Furthermore, the inner wall of the reaction chamber is a polished metal surface.

[0007] Furthermore, the polished metal surface is a polished stainless steel surface.

[0008] Furthermore, the inner wall of the reaction chamber is provided with an uneven structure to extend the water flow path and enhance ultraviolet light reflection.

[0009] Furthermore, the ultraviolet lamp is a single-peak ultraviolet lamp, a double-peak ultraviolet lamp, or a broad-spectrum ultraviolet lamp.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This invention effectively extends the ultraviolet action path, enhances the uniformity of gas-liquid mixing, and improves ultraviolet utilization by using vertical ultraviolet irradiation, two-stage ozone mixing, and an inner wall light reflection structure, thereby significantly improving water treatment efficiency and disinfection effect. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a cross-sectional view of the present invention after the ultraviolet lamp tube has been removed; Figure 4 This is a partial enlarged view of the concave-convex structure of the present invention.

[0012] Among them, 1. reaction chamber; 2. ultraviolet lamp tube; 3. venturi jet; 4. baffle; 5. lamp holder interface; 6. water inlet; 7. water outlet; 8. concave-convex structure. Detailed Implementation

[0013] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0014] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise" and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0015] like Figures 1 to 3 As shown, the present invention provides an array turbulence mixing reaction chamber, including a reaction chamber body 1, an ultraviolet irradiation unit, and a gas-liquid mixing unit; The reaction chamber 1 preferably adopts an integrated sealed structure, which has good structural strength and corrosion resistance. Water inlets 6 and outlets 7 are respectively provided at both ends of the chamber for the inflow and outflow of water to be treated. The inner wall of the reaction chamber 1 is mechanically polished to form a light-reflecting surface. This light-reflecting surface can efficiently reflect the ultraviolet rays emitted by the ultraviolet lamp 2, refracting the light energy that might otherwise be absorbed by the chamber wall back into the water flow, significantly improving utilization and achieving "secondary irradiation" of the water.

[0016] The ultraviolet irradiation unit includes at least one ultraviolet lamp 2. This ultraviolet lamp 2 is detachably mounted to a pre-set mounting hole on the side wall of the reaction chamber 1 via a lamp holder. Crucially, the axial arrangement of the ultraviolet lamp 2 is perpendicular to the main flow direction of the water from the inlet to the outlet. When the water flows perpendicularly across the lamp surface, it generates significant lateral shear force, cutting and disturbing the horizontal water flow, transforming it into a turbulent flow. This flow direction design greatly increases the contact area and contact time between the water flow and the ultraviolet light, thereby significantly improving the ultraviolet irradiation efficiency.

[0017] The gas-liquid mixing unit is located upstream of the water inlet 6 of the reaction chamber 1 and is connected by a pipe. This unit consists of a Venturi jet 3 and a flow disruptor 4 arranged sequentially along the water flow direction; both are existing technology products commonly used in the field.

[0018] The Venturi jet (3), as a standard gas ejector and primary mixing element, is equipped with a converging-expanding main channel and an ozone inlet connected to an external ozone source. Its working principle follows Bernoulli's principle: when pressurized water flows through its throat (i.e., the narrowest part of the flow cross-section), the flow velocity increases sharply, creating a negative pressure in that area, thereby automatically drawing in ozone gas. Simultaneously, the high-speed water flow exerts a strong shearing effect on the inhaled ozone, breaking it into microbubbles with a diameter of micrometers, achieving efficient preliminary mixing of ozone and water.

[0019] The initially mixed gas-liquid two-phase flow is then conveyed to the downstream turbulence diffuser (4). The turbulence diffuser (4) is another common static mixing device, which usually has fixed blades or channel structures inside to generate strong shearing, splitting and recombination of the flowing fluid, forming a rotating vortex, thereby achieving deep and uniform mixing of gas and liquid.

[0020] To further enhance the adaptability and energy efficiency of the equipment, multiple lamp holder interfaces 5 for installing ultraviolet lamps 2 are provided on the side wall of the reaction chamber 1. These interfaces are standardized sealed interfaces, allowing users to flexibly increase or decrease the number of ultraviolet lamps 2 according to actual water treatment needs (such as the degree of raw water pollution and treatment flow targets), and adjust their arrangement (e.g., centralized or decentralized arrangement). This modular design enables the same reactor platform to adapt to different scenarios from conventional disinfection to high-intensity pollutant degradation, avoiding insufficient performance or energy waste caused by a fixed number of lamps.

[0021] Preferably, the plurality of lamp holder interfaces 5 are arranged in an array on the side wall of the reaction chamber 1. This regular matrix arrangement ensures that a uniform irradiation field can be formed inside the chamber regardless of the number of ultraviolet lamps 2 installed, minimizing the "irradiation dead zone" that ultraviolet light cannot cover, and guaranteeing the uniformity and reliability of the treatment effect.

[0022] As mentioned above, the inner wall of the reaction chamber 1 is a polished metal surface. As a preferred embodiment, this metal surface is a polished stainless steel surface, specifically 304 or 316 stainless steel. After polishing to a specific roughness, its ultraviolet light reflection efficiency can be increased from 30% or almost complete absorption of traditional materials to 60%-70%, achieving high utilization of ultraviolet light.

[0023] Preferably, an uneven structure 8 can be further processed on the polished inner wall of the reaction chamber 1. For example... Figure 4 As shown, the basic unit of the concave-convex structure 8 consists of two mirror-symmetrically arranged protrusions. Each protrusion contains three triangular inclined planes that intersect at a common vertex, thus forming a stable polyhedral structure. Adjacent protrusions naturally form a groove. (Concave-convex structure) 8 is formed by periodically arranging basic units on the inner wall of the cavity. The concave-convex structure 8 has a dual function: first, it can physically extend the path of water flow and increase the hydraulic residence time; second, through multi-angle reflection and scattering, it can more fully agitate the light path, enhance the reflection and reuse efficiency of ultraviolet light, and make the light energy distribution more uniform.

[0024] This invention offers broad adaptability to various types of UV lamps. The UV lamp 2 can be selected based on the photolysis characteristics of the target pollutant. It can be a single-peak UV lamp primarily outputting the 254nm wavelength, a dual-peak UV lamp simultaneously outputting both 185nm and 254nm wavelengths (185nm UV light can directly photolyze air to produce ozone, increasing the ozone concentration within the chamber), or a broad-spectrum UV lamp with a wider output wavelength. This flexibility ensures the reactor's optimized treatment capabilities for different water treatment applications.

[0025] The above description provides examples of the preferred embodiments of the present invention. Parts not detailed herein are common knowledge to those skilled in the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. An array-type turbulent mixing reaction chamber, characterized in that, include: The reaction chamber (1) is provided with a water inlet (6) and a water outlet (7), and the inner wall of the reaction chamber (1) is a light-reflecting surface; The ultraviolet irradiation unit includes at least one ultraviolet lamp (2) detachably installed in the reaction chamber (1), wherein the axis of the ultraviolet lamp (2) is perpendicular to the direction of water flow impacting the surface of the ultraviolet lamp (2); A gas-liquid mixing unit is located upstream of the water inlet. The gas-liquid mixing unit includes a Venturi jet (3) and a turbulence maker (4) arranged sequentially along the water flow direction. The Venturi jet (3) has an ozone inlet. When the water flows through, a negative pressure is generated at the throat of the Venturi jet (3) to draw ozone from the ozone inlet and shear the ozone into microbubbles before it is initially mixed with the water flow. The turbulence maker (4) is located downstream of the Venturi jet (3) and is used to generate eddies in the initially mixed fluid for deep mixing.

2. The array-driven turbulent mixing reaction chamber according to claim 1, characterized in that, The reaction chamber (1) is provided with multiple lamp holder interfaces (5) for installing the ultraviolet lamp tube (2).

3. The array-driven turbulent mixing reaction chamber according to claim 2, characterized in that, Multiple lamp holder interfaces (5) are arranged in an array on the reaction chamber (1).

4. The array-type turbulent mixing reaction chamber according to claim 1, characterized in that, The inner wall of the reaction chamber (1) is a polished metal surface.

5. The array-driven turbulent mixing reaction chamber according to claim 4, characterized in that, The polished metal surface is a polished stainless steel surface.

6. The array-driven turbulent mixing reaction chamber according to claim 1, characterized in that, The inner wall of the reaction chamber (1) is provided with a concave-convex structure (8), which is used to extend the water flow path and form diffuse reflection of ultraviolet light.

7. The array-driven turbulent mixing reaction chamber according to claim 1, characterized in that, The ultraviolet lamp (2) includes one or more of the following: single-peak ultraviolet lamp, double-peak ultraviolet lamp, and broad-spectrum ultraviolet lamp.

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