CN112499721A

CN112499721A - Water purification reactor with cylindrical deep ultraviolet disinfection radiation source

Info

Publication number: CN112499721A
Application number: CN202011247393.8A
Authority: CN
Inventors: 范冰丰; 洪泽楷; 吴任凯; 叶俊; 张浩斌
Original assignee: Foshan University
Current assignee: Foshan University
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-03-16
Anticipated expiration: 2040-11-10
Also published as: CN112499721B

Abstract

The invention discloses a water purification reactor with a cylindrical deep ultraviolet disinfection radiation source, which comprises a shell, wherein 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 sequentially communicated, a plurality of disinfection lamp posts are arranged on the shell, each disinfection lamp post comprises a post body and an ultraviolet radiation source, one end of each post body is connected with the shell, the other end of each post body penetrates into the spherical cavity, and the ultraviolet radiation sources are arranged at the ends of the post bodies, which are positioned in the spherical cavities. 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 motion track of the fluid, so that the fluid deflects, the speed of the fluid is reduced, and the like, the ultraviolet radiation source is arranged in the spherical cavity, so that the ultraviolet radiation source can directly irradiate and disinfect the spherical cavity, and the disinfection effect is good. The invention is used in the technical field of disinfection devices.

Description

Water purification reactor with 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

Ultraviolet UV, Ultraviolet, is an electromagnetic wave with a wavelength between 10nm and 400 nm. When a microorganism is irradiated by a certain dose of UV, the molecular structures of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) of the microorganism are damaged, ultraviolet light irradiation can enable the same strand of DNA molecules to form thymine dimer, RNA forms uracil dimer, the formation of the dimer can obstruct the normal pairing of DNA components, DNA can not be read and copied normally, the structure of the DNA is further changed, the DNA cannot be copied normally, and the growing cells and the regenerative cells die, so that the bacteria and the viruses lose the functions of reproduction and self-replication. The ultraviolet ray can kill all microorganisms by the ultraviolet ray sterilization mechanism, and the effective killing of bacteria propagules, spores, mycobacteria, coronavirus, fungi, rickettsia, chlamydia and other bacteria is completed.

According to the International ultraviolet Association "the ultraviolet spectrum ('germicidal' region) which is important for water and air disinfection is the range of absorption by DNA (RNA in some viruses), this germicidal band being around 200-300 nm". And 265nm is considered as the optimal sterilization wavelength, because the wavelength is the peak value of the DNA absorption curve, UVC (UV with wavelength between 100nm and 280 nm) is the most suitable wave band for sterilization, and can inactivate the DNA structure of bacteria, viruses and other pathogens, so that the replication and self-propagation can not be completed, and the high-efficiency sterilization and disinfection work can be completed.

Conventionally, people generally adopt mercury lamps to perform short-wave ultraviolet disinfection, but mercury has serious pollution and can generate harmful substances, the emission spectrum of the mercury lamps is continuous, the mercury lamps have ultraviolet to infrared radiation, the sterilization wavelength is small, the light efficiency is low, and the defects of short service life, environmental pollution and the like exist. Therefore, at present, people prepare an LED disinfection lamp with the wavelength concentrated in a UVC wave band by using a Light Emitting Diode (LED) technology, and the LED disinfection lamp has the advantages of high lighting effect, good sterilization effect, energy conservation, environmental protection, small volume, long service life and the like, is safe and reliable to operate, and can replace the traditional mercury lamp to be applied to water body disinfection.

The water body is disinfected by chemical and physical methods to kill pathogens in water, prevent disease infection and maintain the health of people. Compared with the methods of adding oxygen agent, heavy metal ions and the like in a chemical disinfection method, the ultraviolet irradiation method as a physical method has the advantages of no need of adding any chemical substance, no secondary pollution, good sterilization effect and the like. Therefore, ultraviolet disinfection of water by using the UVC LED disinfection lamp is one of the best choices for current water disinfection.

Currently, the main cavity of the ultraviolet sterilizer for fluid sterilization is usually a cylindrical body, a water inlet and a water outlet are respectively arranged at two ends of the cylindrical body, an ultraviolet radiation source is arranged on the inner wall of the cylindrical body, and fluid enters the cylindrical body from the water inlet and flows out from the water outlet after being irradiated by the ultraviolet radiation source. The arrangement has the problem of uneven disinfection of the fluid, namely when large-flow fluid is treated, the fluid is easy to generate short circuit, namely the fluid directly passes through the cavity along the central axis of the cavity, so that the irradiation time of the fluid by an ultraviolet radiation source is shortened, the dosage of the ultraviolet radiation on the fluid is reduced, and incomplete disinfection is caused.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the water purifying reactor with the cylindrical deep ultraviolet disinfection radiation source is provided, so that one or more technical problems in the prior art are solved, and at least one beneficial selection or creation condition is provided.

The solution of the invention for solving the technical problem is as follows:

the utility model provides a water purification reactor with cylindricality dark ultraviolet disinfection radiation source, includes the shell, the shell is provided with spherical cavity, delivery port and water inlet, delivery port, spherical cavity and water inlet communicate in proper order, install a plurality of disinfection lamp posts on the shell, the disinfection lamp post includes cylinder and ultraviolet radiation source, the one end and the shell of cylinder are connected, the other end penetrates in the spherical cavity, the ultraviolet radiation source sets up in the tip that the cylinder is located spherical cavity.

Through above-mentioned scheme, the fluid flows in from the water inlet, flows out from the delivery port behind the spherical cavity, and when the fluid flowed in the spherical cavity, the motion trail of control fluid can be adjusted to the disinfection lamp pole, makes the fluid take place to deflect, reduces effects such as fluid speed, and the ultraviolet radiation source sets up and makes the ultraviolet radiation source can directly shine the disinfection to the spherical cavity inside in the spherical cavity, and it is effectual to disinfect.

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

As a further improvement of the technical scheme, the wave band range of the UVC light source is within 100nm to 280 nm.

As a further improvement of the above technical solution, the water outlet and the water inlet are respectively disposed at two opposite ends of the spherical cavity, an axis of the water outlet coincides with an axis of the water inlet, and the at least one ultraviolet radiation source is disposed on the axis of the water outlet and at the center of the spherical cavity.

As a further improvement of the technical scheme, three disinfection lamp posts are arranged.

As a further improvement of the technical scheme, the disinfection lamp post further comprises a connecting piece, the connecting piece is arranged to be a step-shaped cylinder or a step-shaped platform-shaped structure, one end of the connecting piece, with a smaller cross section, is connected with the cylinder, and the shell is provided with a mounting hole matched with the connecting piece.

As a further improvement of the technical scheme, the connecting piece is provided with a sealing ring, and the outer peripheral surface of the sealing ring is abutted against the inner wall of the mounting hole.

As a further improvement of the technical scheme, 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 titanium dioxide.

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

The invention has the beneficial effects that: 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 motion track of the fluid, so that the fluid deflects, the speed of the fluid is reduced, and the like, the ultraviolet radiation source is arranged in the spherical cavity, so that the ultraviolet radiation source can directly irradiate and disinfect the spherical cavity, and the disinfection effect is good.

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

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

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

FIG. 2 is a schematic view of the overall structure of a disinfecting lamp post according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a connector of a sterilizing lamp post according to an embodiment of the present invention.

In the figure, 100, the housing; 110. a spherical cavity; 120. a water inlet; 130. a water outlet; 200. sterilizing the lamp post; 210. a connecting member; 220. a cylinder; 230. a source of ultraviolet radiation.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 to 3, a water purifying reactor having a cylindrical deep ultraviolet sterilizing radiation source includes a housing 100, the housing 100 being provided with a spherical chamber 110, a water inlet 120 and a water outlet 130. The water inlet 120, the spherical cavity 110 and the water outlet 130 are sequentially communicated, the water inlet 120 and the water outlet 130 are respectively arranged at two opposite ends of the spherical cavity 110, and the axis of the water inlet 120 and the axis of the water outlet 130 are overlapped.

The size of the spherical cavity 110 may be selected according to the size required for a particular engineering implementation. Preferably, the inner surface of the spherical cavity 110 is coated with a lambertian scattering material, and then, the inner surface of the spherical cavity 110 is also coated with a photocatalytic material (e.g., a material that produces a disinfecting effect when irradiated by a radiation source) for enhancing the disinfecting effect and a smooth coating. The inner surface of spherical cavity 110 is coated with a smooth coating to prevent the fluid from fouling and staying in spherical cavity 110, and to reduce the reflection of ultraviolet light within spherical cavity 110. The inner surface of the spherical cavity 110 is coated with a material having a reflectance of approximately 1 and has lambertian scattering property, and Polytetrafluoroethylene (PTFE), aluminum coated with a magnesium fluoride protective layer is preferably used. The trajectory of the fluid in the spherical cavity 110 can be ensured to be irradiated by the ultraviolet light repeatedly n times (n > -1). The inner surface of the spherical chamber 110 is further coated with a material, such as titanium dioxide, which produces a sterilizing effect when irradiated with ultraviolet rays. The housing 100 is formed with stepped mounting holes.

The housing 100 at the water inlet 120 and the water outlet 130 is provided with an internal thread and an external thread, respectively, for connection with other objects.

Three disinfection lampposts 200 are mounted to the housing 100 and may be used to regulate the disinfection effect of the control fluid and may be used as a form of regulated control fluid flow trajectory. The disinfection lamppost 200 comprises a connecting piece 210, a cylinder 220 and an ultraviolet radiation source 230, wherein the connecting piece 210, the cylinder 220 and the ultraviolet radiation source 230 are sequentially connected, the connecting piece 210 is a step-shaped cylinder 220, and a sealing ring is connected to the outer peripheral surface of the connecting piece 210 with the larger outer diameter. 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 connecting member 210 and the cylinder 220 are formed by 3D printing, and the material is preferably ceramic (zirconia or the like). Optionally, the ultraviolet radiation source 230 may be integrated with the cylinder 220 in advance, and then the disinfection lamp post 200 is inserted into the spherical cavity 110, and the cylindrical disinfection lamp post 200 is fixed by the sealing ring, and water leakage is prevented.

The ultraviolet radiation is arranged at one end of the column body 220 far away from the connecting piece 210, so that the direct distance between the fluid at the center of the ball of the spherical cavity 110 and the ultraviolet radiation source 230 can be reduced, and the condition that part of a small amount of fluid directly flows out of the spherical cavity 110 through the central axis of the ball to cause uneven disinfection is avoided. The three disinfection lampposts 200 allow the fluid in each flow trajectory in the spherical chamber 110 to receive a sufficient and uniform dose of uv radiation. One ultraviolet radiation source 230 is approximately positioned in the center of the spherical cavity 110, the power of the ultraviolet radiation source 230 is the maximum, and the power of the ultraviolet radiation source 230 is increased to achieve the maximum disinfection effect.

The ultraviolet radiation source 230 preferably adopts a UVC light source, such as an inorganic semiconductor LED ultraviolet lamp and an organic OLED ultraviolet lamp, and the wave band range is 100 nm-280 nm, particularly 240 nm-280 nm. Optionally, low and medium pressure ultraviolet lamps may be employed. The LED has high response starting speed, can reach normal ultraviolet radiation output within the nanoscale time, and has higher safety coefficient performance than other ultraviolet lamps in the application of fluid disinfection such as water, oil and the like according to the experimental verification of the prior art. Preferably, the ultraviolet radiation source 230 located in a local portion of the disinfecting lamppost 200 will be installed to cover the entire local surface in contact with the fluid at that local portion.

The spherical chamber 110 is integrated with the cylindrical disinfection lamp post 200, a sufficient number of mounting holes for mounting the disinfection lamp post 200 are reserved when the spherical chamber 110 is produced, and the ultraviolet radiation source 230 is connected with an external power supply. The fluid in the spherical cavity 110 can be used as a diffuser, and the high heat of the chip of the ultraviolet radiation source 230 can be transmitted to the low heat fluid through diffusion movement by the continuous flow of the fluid in the spherical cavity 110, so that the ultraviolet radiation source 230 is kept in a stable environment of normal operation, and the irradiation range of the plurality of disinfection lamp posts 200 is overlapped, thereby increasing the disinfection uniformity of the whole spherical cavity 110 and improving the irradiation dose. The locus where the ultraviolet radiation source 230 is arranged is ensured to be allowed to pass through by the fluid in the spherical chamber 110 in practice, and all the trajectories can be irradiated with the ultraviolet rays n times (n > -1).

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

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 in spherical cavity (110), ultraviolet radiation source (230) set up in cylinder (220) are located the tip of spherical cavity (110).

2. The water purification reactor with cylindrical deep ultraviolet disinfection radiation source of claim 1, characterized in that: 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. 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 lambertian scattering coating.