CN112499721B - Water purification reactor with cylindrical deep ultraviolet disinfection radiation source - Google Patents

Abstract

The invention discloses a water purification reactor with a cylindrical deep ultraviolet disinfection radiation source. Several disinfection lamp posts are installed on the shell, the disinfection lamp posts include a cylinder and an ultraviolet radiation source, one end of the cylinder is connected to the outer casing, and the other end penetrates into the spherical cavity, and the ultraviolet radiation source is set The cylinder is located at the end of the spherical cavity. The fluid flows in from the water inlet and flows out from the water outlet after passing through the spherical cavity. When the fluid flows in the spherical cavity, the disinfection lamp post can adjust and control the movement trajectory of the fluid, deflect the fluid, reduce the fluid velocity, etc. The ultraviolet radiation source is set In the spherical cavity, the ultraviolet radiation source can directly irradiate and disinfect the spherical cavity, and the disinfection effect is good. The present invention is used in the technical field of disinfection devices.

Description

A water purification reactor with a cylindrical deep ultraviolet disinfection radiation source

technical field

The invention relates to the technical field of disinfection devices, in particular to a water purification reactor with a cylindrical deep ultraviolet disinfection radiation source.

Background technique

Ultraviolet UV, or Ultraviolet, is an electromagnetic wave with a wavelength between 10nm and 400nm. When a microorganism is irradiated with a certain dose of UV, its DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) molecular structures will be damaged - the irradiation of ultraviolet light will cause the same strand of DNA molecules to form thymine dimers, and RNA to form urine Pyrimidine dimers, the formation of these dimers will hinder the normal pairing of DNA components, making DNA unable to read and replicate normally, and then changing the structure of DNA, making it impossible to complete normal replication, the death of growing cells and regenerative cells , causing bacteria and viruses to lose the function of reproduction and self-replication. It can be concluded from the above ultraviolet sterilization mechanism that ultraviolet rays can kill all microorganisms and complete the effective killing of bacterial propagules, spores, mycobacteria, coronaviruses, fungi, rickettsia and chlamydia.

According to the International Ultraviolet Association, "The UV spectrum (the 'bactericidal' region) that is important for water and air disinfection is the range that is absorbed by DNA (or RNA in some viruses), and this germicidal band is around 200-300nm". It is generally believed that 265nm is the best sterilization wavelength. Because this wavelength is the peak of the DNA absorption curve, UVC (UV with a wavelength of 100-280nm) is the most suitable wavelength for sterilization. It can inactivate bacteria and viruses. And the DNA structure of other pathogens, making it impossible to complete replication and self-reproduction, and complete efficient sterilization and disinfection.

Traditionally, people usually use mercury lamps for short-wave ultraviolet disinfection, but mercury has serious pollution and will produce harmful substances, and the emission spectrum of mercury lamps is continuous, ranging from ultraviolet to infrared, and the sterilization wavelength accounts for a small proportion. , low luminous efficiency, short life, environmental pollution and other shortcomings. Therefore, at present, people use light-emitting diode (Light Emiitting Diode, LED) technology to prepare LED disinfection lamps with wavelengths concentrated in the UVC band. Safe and reliable, it can replace traditional mercury lamps in water disinfection.

Disinfection of water bodies is to use chemical and physical methods to kill pathogens in water, prevent disease transmission, and maintain human health. Compared with the methods of adding oxygen and heavy metal ions in the chemical disinfection method, the ultraviolet irradiation method as a physical method has the advantages of no need to add any chemical substances, no secondary pollution, and good sterilization effect. Therefore, the use of UVC LED disinfection lamps for ultraviolet disinfection of water bodies is one of the best choices for water disinfection at present.

At present, the main cavity of the ultraviolet sterilizer used for fluid disinfection is usually a cylindrical body, and a water inlet and a water outlet are respectively provided at both ends of the column body, and the ultraviolet radiation source is arranged on the inner wall of the column. After the ultraviolet radiation source is irradiated, it flows out from the water outlet. Such an arrangement has the problem of uneven sterilization of the fluid—fluid short-circuits are prone to occur when a large flow of fluid is processed, that is, the fluid passes through the cavity directly along the central axis of the cavity, shortening the time for the fluid to be irradiated by the ultraviolet radiation source, so that the The fluid is exposed to a reduced dose of UV radiation, resulting in incomplete disinfection.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to provide a water purification reactor with a column-shaped deep ultraviolet disinfection radiation source, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or creating condition.

The solution that the present invention solves its technical problem is:

A water purification reactor with a cylindrical deep-ultraviolet disinfection radiation source, comprising a shell, the shell is provided with a spherical cavity, a water outlet and a water inlet, the water outlet, the spherical cavity and the water inlet are connected in sequence, and the A number of disinfection lamp posts are installed on the shell, the disinfection lamp posts include a cylinder and an ultraviolet radiation source, one end of the cylinder is connected to the outer casing, and the other end penetrates into the spherical cavity, and the ultraviolet radiation source is arranged on the cylinder located in the spherical cavity. The end of the spherical cavity.

Through the above scheme, the fluid flows in from the water inlet and flows out from the water outlet after passing through the spherical cavity. When the fluid flows in the spherical cavity, the disinfection lamp post can adjust and control the movement trajectory of the fluid, deflect the fluid, and reduce the fluid velocity. The ultraviolet radiation source is arranged inside the spherical cavity, so that the ultraviolet radiation source can directly irradiate and disinfect the spherical cavity, and the disinfection effect is good.

As a further improvement of the above technical solution, the ultraviolet radiation source adopts a UVC light source.

As a further improvement of the above technical solution, the wavelength range of the UVC light source is within 100nm to 280nm.

As a further improvement of the above technical solution, the water outlet and the water inlet are respectively arranged at opposite ends of the spherical cavity, the axis of the water outlet is coincident with the axis of the water inlet, and at least one of the ultraviolet radiation sources is arranged at the outlet. The nozzle is on the axis and is arranged in the center of the spherical cavity.

As a further improvement of the above technical solution, there are three disinfection lamp posts.

As a further improvement of the above technical solution, the disinfection lamp post further includes a connecting piece, the connecting piece is arranged as a stepped column or a trapezoidal platform structure, and the end of the connecting piece with a smaller cross section is connected with the column, The housing is provided with a mounting hole matched with the connecting piece.

As a further improvement of the above technical solution, the connector is provided with a sealing ring, and the outer peripheral surface of the sealing ring is in contact with the inner wall of the installation hole.

As a further improvement of the above technical solution, the inner surface of the spherical cavity is coated with a photocatalytic material coating.

As a further improvement of the above technical solution, the photocatalytic material is set to be titanium dioxide.

As a further improvement of the above technical solution, the inner surface of the spherical cavity is coated with a Lambertian scattering coating.

The beneficial effects of the invention are: the fluid flows in from the water inlet and flows out from the water outlet after passing through the spherical cavity. When the fluid flows in the spherical cavity, the disinfection lamp post can adjust and control the movement trajectory of the fluid, deflect the fluid and reduce the fluid velocity The ultraviolet radiation source is arranged inside the spherical cavity, so that the ultraviolet radiation source can directly irradiate and disinfect the spherical cavity, and the disinfection effect is good.

The present invention is used in the technical field of disinfection devices.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings that are used in the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, but not all of the embodiments, and those skilled in the art can obtain other design solutions and drawings according to these drawings without creative work.

1 is a partial cross-sectional structural schematic diagram of an embodiment of the present invention;

2 is a schematic diagram of the overall structure of a disinfection lamp post according to an embodiment of the present invention;

3 is a schematic structural diagram of a connector of a disinfection lamp post according to an embodiment of the present invention.

In the figure, 100, shell; 110, spherical cavity; 120, water inlet; 130, water outlet; 200, disinfection lamp post; 210, connector; 220, cylinder; 230, ultraviolet radiation source.

Detailed ways

The concept, specific structure and technical effects of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts are all within the scope of The scope of protection of the present invention. In addition, all the coupling/connection relationships mentioned in the text do not mean that the components are directly connected, but refer to a better coupling structure by adding or reducing coupling accessories according to specific implementation conditions. Various technical features in the present invention can be combined interactively on the premise of not contradicting each other.

1 to 3 , a water purification reactor with a cylindrical deep ultraviolet disinfection radiation source includes a housing 100 , and the housing 100 is provided with a spherical cavity 110 , a water inlet 120 and a water outlet 130 . The water inlet 120 , the spherical cavity 110 and the water outlet 130 are connected in sequence, and the water inlet 120 and the water outlet 130 are respectively disposed at opposite ends of the spherical cavity 110 , and the axes of the water inlet 120 and the water outlet 130 coincide with each other.

The size of the spherical cavity 110 can be selected according to the size required for specific project implementation. Preferably, the inner surface of the spherical cavity 110 can be coated with a Lambertian scattering material, and secondly, the inner surface of the spherical cavity 110 can also be coated with a photocatalytic material that enhances the disinfection effect (for example, a sterilizing effect can be produced under the irradiation of a radiation source). material) and smooth coating. The inner surface of the spherical cavity 110 is coated with a smooth coating to prevent the fluid from fouling and staying in the spherical cavity 110 and reduce the reflection of ultraviolet light in the spherical cavity 110 . The inner surface of the spherical cavity 110 is coated with a material with a reflectance close to 1 and has Lambertian scattering properties, preferably polytetrafluoroethylene (PTFE) and aluminum coated with a magnesium fluoride protective layer. It is ensured that the actual trajectory of the fluid in the spherical cavity 110 can be repeatedly irradiated by the ultraviolet light n times (n>=1). The inner surface of the spherical cavity 110 is also coated with a material that produces a sterilizing effect under the irradiation of ultraviolet light, such as titanium dioxide. The housing 100 is provided with stepped mounting holes.

The housing 100 at the water inlet 120 and the water outlet 130 are respectively provided with internal threads and external threads for connecting with other objects.

Three sterilizing lamp posts 200 are installed on the housing 100, which can be used to adjust and control the sterilizing effect of the fluid, and can be used as a form of adjusting and controlling the flow track of the fluid. The disinfection lamp column 200 includes a connecting piece 210, a column body 220 and an ultraviolet radiation source 230. The connecting piece 210, the column body 220 and the ultraviolet radiation source 230 are connected in sequence. The connecting piece 210 is a stepped column body 220, and the outer diameter of the connecting piece 210 is larger. The outer peripheral surface is connected with a sealing ring. The connecting member 210 and the ultraviolet radiation source 230 are respectively disposed at opposite ends of the cylinder 220 , and the smaller end of the connecting member 210 is connected to the cylinder 220 .

The connector 210 and the cylinder 220 are formed by 3D printing, and the material is preferably ceramic (zirconia, etc.). Optionally, the ultraviolet radiation source 230 can be integrated with the cylinder body 220 in advance, and then the disinfection lamp post 200 is placed in the spherical cavity 110, and the cylindrical disinfection lamp post 200 is fixed by a sealing ring to prevent water leakage.

The ultraviolet radiation is arranged at the end of the cylinder 220 away from the connecting piece 210, which can reduce the direct distance between the fluid in the center of the spherical cavity 110 and the ultraviolet radiation source 230, and prevent a small number of fluids from directly flowing out of the spherical cavity 110 through the center axis of the spherical cavity. This results in uneven disinfection. The three disinfection lamp posts 200 can make the fluid on each flow track in the spherical cavity 110 receive a sufficient and uniform dose of ultraviolet radiation. One of the ultraviolet radiation sources 230 is approximately in the center of the spherical cavity 110 , and the power of the ultraviolet radiation source 230 is the largest. Increasing the power of the ultraviolet radiation source 230 can achieve the maximum disinfection effect.

The ultraviolet radiation source 230 is preferably a UVC light source, such as an inorganic semiconductor LED ultraviolet lamp and an organic OLED ultraviolet lamp, and the wavelength band ranges from 100 nm to 280 nm, specifically in the range of 240 nm to 280 nm. Optionally, low and medium pressure UV lamps can be used. The LED responds quickly and starts, and can reach normal ultraviolet radiation output in nanometer time. According to the existing technology experiments, LED has a higher safety factor than other ultraviolet lamps in the application of fluid disinfection such as water and oil. Preferably, the ultraviolet radiation source 230 located in a part of the disinfection lamp post 200 will be installed to cover the entire surface of the part in contact with the fluid at the part.

The spherical cavity 110 is integrated with the cylindrical disinfection lamp post 200 , and a sufficient amount of mounting holes for installing the disinfection lamp post 200 is reserved when the spherical cavity 110 is produced, and the ultraviolet radiation source 230 is connected to an external power supply. The fluid in the spherical cavity 110 itself can be used as a diffuser. Through the continuous flow of the fluid in the spherical cavity 110, the high heat of the ultraviolet radiation source 230 chip will be transferred to the low heat fluid through diffusion motion, so that the ultraviolet radiation source 230 It is maintained in a stable environment of normal operation, and through the superposition of the irradiation range of a plurality of disinfection lamp posts 200, the disinfection uniformity of the overall spherical cavity 110 is increased and the irradiation dose is increased. It is ensured that the position of the ultraviolet radiation source 230 can be arranged so that in the spherical cavity 110, the actual trajectory of the fluid passing through can be irradiated by the ultraviolet light n times (n>=1).

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present invention, These equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims (10)

1. A water purification reactor with a cylindrical deep ultraviolet disinfecting radiation source, characterized in that: including shell (100), shell (100) are provided with spherical cavity (110), delivery port (130) and water inlet (120), delivery port (130), spherical cavity (110) and water inlet (120) communicate in proper order, install a plurality of disinfection lamp posts (200) on shell (100), disinfection lamp post (200) are including cylinder (220) and ultraviolet radiation source (230), the one end and shell (100) of cylinder (220) are connected, the other end penetrates spherical cavity (110) in, ultraviolet radiation source (230) set up in cylinder (220) are located the tip of spherical cavity (110), one of them ultraviolet radiation source (230) are close to the center setting of spherical cavity (110).

2. A water purification reactor having a cylindrical deep ultraviolet disinfecting radiation source as claimed in claim 1 wherein: the ultraviolet radiation source (230) adopts a UVC light source.

3. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 2, characterized in that: the wave band range of the UVC light source is within 100nm to 280 nm.

4. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 1, characterized in that: the water outlet (130) and the water inlet (120) are respectively arranged at two opposite ends of the spherical cavity (110), the axis of the water outlet (130) is coincided with the axis of the water inlet (120), and the at least one ultraviolet radiation source (230) is arranged on the axis of the water outlet (130) and at the center of the spherical cavity (110).

5. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 1, characterized in that: the number of the disinfection lamp posts (200) is three.

6. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 1, characterized in that: the disinfection lamppost (200) further comprises a connecting piece (210), the connecting piece (210) is arranged to be a step-shaped cylinder (220) or a trapezoid table-shaped structure, one end of the connecting piece (210) with a smaller cross section is connected with the cylinder (220), and a mounting hole matched with the connecting piece (210) is formed in the shell (100).

7. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 6, characterized in that: the connecting piece (210) is provided with a sealing ring, and the outer peripheral surface of the sealing ring is abutted to the inner wall of the mounting hole.

8. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 1, characterized in that: the inner surface of the spherical cavity (110) is coated with a photocatalytic material coating.

9. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 8, characterized in that: the photocatalytic material is provided as titanium dioxide.

10. A water purification reactor having a cylindrical deep ultraviolet disinfecting radiation source as claimed in claim 1 wherein: the inner surface of the spherical cavity (110) is coated with a lambertian scattering coating.

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