Ultraviolet Digester

Abstract

The present invention discloses an ultraviolet digester, which comprises a carrier and an ultraviolet light source. The carrier is made of ultraviolet-transmitting glass, and an inward reflective film is coated on the outside of the carrier. The carrier has a circulating digestion section and a light guiding section. The circulating digestion section is circular ring-shaped, and a U-shaped flow channel for fluid to enter is formed in the circulating digestion section. The light guiding section intersects with the inlet section of the flow channel. The ultraviolet light source includes an ultraviolet lamp and a convex lens. The convex lens is located between the ultraviolet lamp and the light guiding section and is used to converge the ultraviolet rays emitted by the ultraviolet lamp to the end of the light guiding section. The ultraviolet rays penetrate the light guiding section and enter the circulating digestion section. This device introduces ultraviolet light into the interior of the carrier of the water body, allows the ultraviolet light to surround the water body to be measured, and through the setting of the circular structure of the carrier, the ultraviolet light is circulated, and the energy of the ultraviolet light can be fully used for water body digestion.

Description

Technical Field

[0001] The invention relates to the field of water quality detection, and in particular to an ultraviolet digester used in a water quality detector. Background Art

[0002] As people's awareness of water resource protection increases, related instruments for testing water quality have also emerged. However, due to the complex internal structure of water bodies and the presence of a variety of organic and inorganic substances, when testing some parameters, it is necessary to digest the organic matter and convert it into inorganic matter for measurement (such as chemical oxygen demand, total nitrogen, total organic carbon, etc.) in order to obtain accurate data.

[0003] The traditional digestion method mainly utilizes ultraviolet irradiation. When a sufficient dose of strong ultraviolet light generated by the ultraviolet device is irradiated to water or liquid added with an oxidant, the organic matter therein is converted into specific inorganic molecules under the action of ultraviolet light, and the converted inorganic matter is measured to obtain accurate data. In the current ultraviolet digestion technology, the digestion device disclosed in the Chinese invention patent application CN201710566542.9 utilizes an ultraviolet lamp to irradiate a quartz glass tube containing a water body through the air, which results in a large amount of energy waste. There is also a method disclosed in the Chinese utility model patent CN201320275024.9, which improves the digestion efficiency by spirally winding the digestion tube outside the ultraviolet lamp, but the ultraviolet digestion tube adopts a spiral structure, which is difficult to process and difficult to install and maintain.

[0004] Another way is to directly insert the UV lamp into the digestion tube, such as the UV digestion device for water quality analyzer disclosed in Chinese utility model CN201220595377.2. This method combines the lamp and the liquid, but it fails to achieve energy concentration and tracking, and does not recover the unconsumed UV light after UV irradiation, resulting in a large waste of resources. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an ultraviolet digester capable of improving the utilization rate of ultraviolet light.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The ultraviolet digester is characterized by comprising:

[0008] The carrier is made of ultraviolet transparent glass and coated with an inward reflective film. The carrier has a circulation digestion section and a light-guiding section. The circulation digestion section is annular and has a U-shaped flow channel for fluid to enter. The light-guiding section intersects with the inlet section of the flow channel.

[0009] The ultraviolet light source includes an ultraviolet lamp and a convex lens. The convex lens is located between the ultraviolet lamp and the light guiding section, and is used to converge the ultraviolet rays emitted by the ultraviolet lamp to the end of the light guiding section. The ultraviolet rays penetrate the light guiding section and enter the circulating digestion section.

[0010] A further technical solution is that the light guiding section is inclined along the fluid flow direction.

[0011] A further technical solution is that the included angle between the light guiding section and the inlet section of the flow channel is 30° to 60°.

[0012] A further technical solution is that the non-light guiding surface is provided on the carrier from the intersection point of the light guiding section to the inlet of the flow channel.

[0013] A further technical solution is that the carrier is made of quartz glass.

[0014] A further technical solution is that the circulating digestion section has a coaxial circular cross-section.

[0015] The beneficial effects of adopting the above technical solutions are as follows:

[0016] The device uses a convex lens to condense the ultraviolet light emitted by the ultraviolet lamp, and introduces the condensed ultraviolet light into the interior of the carrier of the water body. The surface of the carrier is coated with an inward reflective film. When the light irradiates on the inward reflective film, it is refracted backward and continues to conduct in the carrier. The ultraviolet rays do not scatter and always accompany the water body. The ultraviolet rays conduct in the carrier, and the flow channel is arranged in the carrier, realizing the circumferential surrounding of the flow channel by the ultraviolet rays, so that the ultraviolet rays can irradiate and digest the water body 360°.

[0017] In addition, the circulating digestion section in the carrier is circular. After the water body is digested, it is discharged, and the ultraviolet rays continue to conduct in the circulating digestion section, and return from the water outlet end of the flow channel to the water inlet end, and can enter the digestion of new water samples until the energy is completely consumed by the water body. Through the repeated circulation of the ultraviolet rays, the device makes full use of the energy of the ultraviolet rays. Description of the Drawings

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] Figure 1 It is a schematic structural diagram of the present invention;

[0020] Figure 2 It is another schematic structural diagram of the present invention. Specific Embodiments

[0021] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0023] As Figure 1 and Figure 2 shown, the ultraviolet digester of the present disclosure is mainly used to perform digestion treatment on water bodies before water quality detection, digest the organic matter in the water bodies through ultraviolet light irradiation, and convert it into inorganic matter that is easy to detect for testing. By using this ultraviolet digester, ultraviolet light is introduced into the interior of the carrier of the water body, allowing the ultraviolet light to surround the water body to be measured, and more than 90% of the energy of the ultraviolet light is used for water body digestion.

[0024] The ultraviolet digester of the present disclosure includes a carrier and an ultraviolet light source. The carrier is a carrier for the water body to be measured and ultraviolet light. The carrier is made of ultraviolet-transmitting glass, which is required to allow ultraviolet light to pass through. Preferably, quartz glass is used. Quartz glass has good light transmission performance in the entire wavelength range from ultraviolet to infrared, and the maximum transmittance in the ultraviolet spectral region can reach more than 80%. An inward reflective film is coated on the outside of the carrier to prevent ultraviolet light from leaking out of the carrier. The carrier has a circulating digestion section 110 and a light guiding section 120. The circulating digestion section 110 is circular in shape. A U-shaped flow channel 111 for fluid to enter is provided in the circulating digestion section 110. The flow channel 111 has a semicircular middle section arranged along the circulating digestion section 110, an inlet section and an outlet section respectively connected to both ends of the middle section. The inlet section and the outlet section are both horizontally arranged. Inlet pipes 112 and outlet pipes 113 may also be connected outside the inlet section and the outlet section. Inward reflective films are coated on the end faces of the inlet pipes 112 and the outlet pipes 113 in contact with the carrier. The light guiding section 120 intersects with the inlet section of the flow channel 111.

[0025] The circulating digestion section in the structure is preferably a coaxial circular cross-section, which is beneficial to the uniform forward conduction of ultraviolet light and uniformly surrounds the flow channel to perform 360° digestion treatment on the water body.

[0026] Preferably, the light guiding section 120 is inclined along the fluid flow direction to introduce ultraviolet rays into the circulation digestion section 110 along the fluid flow direction, so that the ultraviolet light is conducted forward in the same direction. An included angle of 30-60° is formed between the light guiding section 120 and the inlet section of the flow channel 111, which is beneficial for ultraviolet rays to enter the circulation digestion section 110. And the non-light guiding surface is arranged on the carrier from the intersection point of the light guiding section to the inlet of the flow channel to prevent the ultraviolet rays from diffusing in the opposite direction.

[0027] The ultraviolet light source includes an ultraviolet lamp 210 and a convex lens 220. The convex lens 220 is located between the ultraviolet lamp 210 and the light guiding section 120 and is used to converge the ultraviolet rays emitted by the ultraviolet lamp 210 to the end of the light guiding section 120. The ultraviolet rays penetrate the light guiding section 120 and enter the circulation digestion section 110.

[0028] The device condenses the ultraviolet rays emitted by the ultraviolet lamp 210 by using the convex lens 220 and introduces the condensed ultraviolet rays into the interior of the carrier of the water body. The surface of the carrier is coated with an inward reflecting film. When the light irradiates on the inward reflecting film, it continues to conduct in the carrier after anti-refraction. The ultraviolet rays do not scatter and always accompany the water body. The ultraviolet rays conduct in the carrier, and the flow channel 111 is arranged in the carrier to realize the circumferential surrounding of the flow channel 111 by the ultraviolet rays, so that the ultraviolet rays can irradiate and digest the water body 360°.

[0029] In addition, the circulation digestion section 110 in the carrier is circular. After the water body is digested, it is discharged, while the ultraviolet rays continue to conduct in the circulation digestion section 110 and return from the water outlet end to the water inlet end of the flow channel 111, and can enter the digestion of new water samples until the energy is completely consumed by the water body. Through the repeated circulation of the ultraviolet rays, the device makes full use of the energy of the ultraviolet rays.

[0030] The above are only the preferred embodiments of the present invention. Any simple modification, deformation and equivalent replacement made by anyone according to the content of the present invention fall within the protection scope of the present invention.

Claims

1. Ultraviolet digester, Characterized in that, Comprising: A carrier made of ultraviolet-transmitting glass, with an inward reflective film coated on the carrier. The carrier has a circulating digestion section (110) and a light guiding section (120). The circulating digestion section (110) is circular, the circulating digestion section (110) has a coaxial circular cross-section, and a U-shaped flow channel (111) for fluid to enter is provided in the circulating digestion section (110). The light guiding section (120) intersects with the inlet section of the flow channel (111); And An ultraviolet light source, including an ultraviolet lamp (210) and a convex lens (220). The convex lens (220) is located between the ultraviolet lamp (210) and the light guiding section (120) and is used to converge the ultraviolet rays emitted by the ultraviolet lamp (210) to the end of the light guiding section (120). The ultraviolet rays penetrate the light guiding section (120) and enter the circulating digestion section (110).

2. The ultraviolet digester according to claim 1, Characterized in that, The light guiding section (120) is inclined along the fluid flow direction.

3. The ultraviolet digester according to claim 2, Characterized in that, An included angle of 30 to 60° is formed between the light guiding section (120) and the inlet section of the flow channel (111).

4. The ultraviolet digester according to claim 2, Characterized in that, A non-light guiding surface is provided on the carrier from the intersection point of the light guiding section (120) to the inlet of the flow channel (111).

5. The ultraviolet digester according to claim 1, Characterized in that, The carrier is made of quartz glass.

Images