CN110585458A

CN110585458A - High-collimation ultraviolet antifouling device and preparation method thereof

Info

Publication number: CN110585458A
Application number: CN201910970093.3A
Authority: CN
Inventors: 徐现刚; 徐明升; 肖龙飞; 陈秀芳
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2019-12-20

Abstract

The invention provides a high-collimation ultraviolet antifouling device and a preparation method, including a substrate, an ultraviolet light source is arranged on the upper side of the substrate, a sealed casing is arranged outside the ultraviolet light source, and the sealed casing and the substrate are connected through a sealing device , A collimating lens is set on the ultraviolet light source, and a gas is arranged in the sealed casing; the light of the ultraviolet light source is refracted by the collimating lens, and concentratedly irradiates the working part of the sensor, which improves the antifouling effect.

Description

High-collimation ultraviolet antifouling device and preparation method thereof

Technical Field

The invention belongs to the field of underwater sensors, and particularly relates to a high-collimation ultraviolet antifouling device and a preparation method thereof.

Background

The ocean sensor is the important equipment of ocean research, and when long-time work, bacterium and plankton in the sea water can be attached to the outer wall to produce the lime deposit, marine organisms such as the aquatic algae also can cover the ocean sensor outer wall, influence its normal work, have seriously shortened sensor life. Therefore, the method has important significance for preventing marine organisms from attaching and growing on the sensor working part.

The sensor working part is irradiated by ultraviolet light of 260-280nm emitted by the ultraviolet LED, so that cell replication of marine organisms can be damaged, bacterial adsorption and plankton growth on the surface of the marine sensor are prevented, cell proliferation of marine organisms such as algae is inhibited, the marine organisms are prevented from being attached to the sensor working part, and the working life of the sensor is greatly prolonged.

The ultraviolet LED prepared by the prior art adopts the light emitting principle that carriers are compounded by spontaneous radiation to generate photons to emit light, the LED is a point light source when in work, and the light intensity distribution of the LED is in spherical symmetrical distribution, so that when the ultraviolet LED is used on an antifouling device of an ocean sensor, only the ultraviolet light irradiated on a working part of the sensor is effective, and the ultraviolet light irradiated on other areas is ineffective or even harmful. The diameter of the working part of the ocean sensor is 3 cm, and when the ultraviolet LED is 10 cm away from the working part, only 2.25% of ultraviolet light can irradiate the working part of the sensor, so that the use efficiency of the ultraviolet LED is greatly reduced.

Chinese patent (CN 105424092A) discloses a deep detector for ocean temperature and salt attached by marine organisms, which utilizes an ultraviolet light-emitting diode to inhibit the problems of sensor performance failure, unreliable detection data and the like caused by the attachment of the organisms. The ultraviolet LED light sources used in the two patents are directly irradiated out through the stripping cover, the light intensity distribution is not adjusted, only a small part of light irradiates on the working part of the sensor, the light output power of the ultraviolet LED is also highly required, and the energy is greatly wasted.

Disclosure of Invention

Aiming at the defects of the prior art, the ultraviolet antifouling device with high collimation is provided, light emitted by the light source is intensively irradiated to the working part of the sensor, and the antifouling effect and the service life of the antifouling device are greatly improved.

The invention also provides a working method of the device.

The technical scheme of the invention is as follows:

the utility model provides an ultraviolet antifouling device of high collimation nature, includes the base plate, the base plate upside is provided with ultraviolet source, and the ultraviolet source outside is provided with sealed shell, is connected through sealing device between sealed shell and the base plate.

Preferably, a collimating lens is arranged on the ultraviolet light source.

The light of the ultraviolet light source is reflected by the collimating lens to intensively irradiate the working part of the sensor, so that the antifouling effect is improved.

The sealed shell is filled with high-pressure nitrogen or argon.

When the equipment is assembled, the process is carried out in the nitrogen or argon atmosphere, and after the sealing is finished, the nitrogen or argon exists in the sealed shell.

Preferably, the bottom edge of the sealing shell is provided with a flange extending outwards, and the sealing device comprises a sealing rubber ring, a sealing bolt and a sealing pressure ring; the sealing shell is connected to the base plate through a sealing bolt in a penetrating mode, the sealing pressing plate is pressed and distributed on the flange, and a sealing rubber ring is arranged between the flange and the base plate.

Through the combination of the sealing rubber ring, the sealing bolt and the sealing press ring, the sealing is more thorough.

Preferably, the sealing housing is in an inverted 'U' shape, the sealing device includes a sealing rubber ring, and the sealing housing and the substrate are sealed by the sealing rubber ring.

The elasticity of the sealing rubber ring is utilized for sealing, and the sealing effect is good.

Preferably, the substrate is flat.

Preferably, the substrate is of a "convex" type.

Preferably, the sealed enclosure is a quartz material.

Preferably, a groove matched with the sealing rubber ring is arranged on the base plate.

A high-collimation ultraviolet antifouling device and a preparation method thereof are disclosed, and the preparation steps are as follows:

(1) processing a base plate, and processing a groove for placing the sealing rubber ring according to the diameter of the sealing rubber ring;

(2) coating heat-conducting silicone grease on the bottom of an ultraviolet light source and then installing the ultraviolet light source on the front surface of the substrate in the step (1);

(3) mounting a collimating lens on the upper part of the ultraviolet light source;

(4) placing a sealing rubber ring at the groove of the substrate in the step (1), and placing a sealing shell above the sealing rubber ring;

(5) and the sealing compression ring is placed above the sealing shell, and the sealing bolt is screwed down, so that the whole system has good waterproof performance.

(6) The inside of the sealed outer shell is filled with nitrogen or argon.

(1) processing a substrate made of stainless steel;

(2) coating heat-conducting silicone grease on the bottom of an ultraviolet light source and then installing the ultraviolet light source on the front surface of the substrate in the step (1); the wavelength of the ultraviolet light source is 300nm, and the power is 100 mW;

(3) installing a collimating lens on the upper part of an ultraviolet light source, and enabling a light emitting surface of the ultraviolet light source to be positioned on a focal plane of the collimating lens;

(4) connecting the sealing shell with the substrate through a sealing rubber ring;

(5) the inside of the sealed outer shell is filled with nitrogen or argon.

The invention has the beneficial effects that:

1. the light distribution of the existing ultraviolet antifouling light source system is not shaped, a large part of light emitted by the light source does not irradiate the working part of the sensor, the energy is seriously wasted, the antifouling effect is reduced, the application passes through the optical design, a collimating lens is installed in the front of the light source, the light of the ultraviolet light source passes through the refraction of the collimating lens, the working part of the sensor is irradiated in a concentrated manner, and the antifouling effect is improved.

2. The sealing shell is installed in a mode of combining the sealing rubber ring, the sealing bolt and the sealing pressure ring, so that the installation is more compact, and the sealing shell has good waterproofness.

3. The inside nitrogen gas or argon gas that is provided with of sealed housing can avoid oxygen and steam to light source and circuit oxidation, corrosion, improves light source life.

Drawings

FIG. 1 is a schematic structural diagram of example 2 of the present invention;

FIG. 2 is a schematic structural view of embodiment 1 of the present invention;

FIG. 3 is a simulated light distribution curve of a conventional lensless light source;

FIG. 4 is a light distribution curve of the ultraviolet anti-fouling device with a collimating lens;

FIG. 1 shows a substrate; 2. sealing the rubber ring; 3. sealing the pressure ring; 4. a seal bolt; 5. sealing the housing; 6. a groove; 7. a collimating lens; 8. an ultraviolet light source; 9. simulated light; 10. a detector receiving face.

Detailed Description

The present invention will be further described by way of examples, but not limited thereto, with reference to the accompanying drawings.

Example 1:

a high-collimation ultraviolet antifouling device comprises a substrate, wherein the substrate is made of aluminum and is of a flat plate type, an ultraviolet light source is arranged on the upper side of the substrate and is an LED or a fluorescent tube, the emission wavelength of the ultraviolet light source is 200-350nm, and the power is 1-100 mW; a sealing shell is arranged outside the ultraviolet source, and is made of quartz material, and the thickness of the sealing shell is 0.1-5 mm; the sealed shell is connected with the substrate through a sealing device. A collimating lens is arranged on the ultraviolet light source; the collimating lens is made of quartz, is hemispherical and has the radius of 1-10 mm; the bottom edge of the sealing shell is provided with a flange extending outwards, and the sealing device comprises a sealing rubber ring, a sealing bolt and a sealing pressure ring; the sealing shell is connected on the base plate in a penetrating way through a sealing bolt, the sealing pressure plate is pressed and distributed on the flange, and a sealing rubber ring is arranged between the flange and the base plate; the inside nitrogen gas or the argon gas that is provided with of sealed shell, as can be seen from figure 3 and figure 4, after adopting collimating lens, light is more intensive, and most light shines to survey on the working face, and the availability factor is high.

Example 2:

the structure of the high-collimation ultraviolet antifouling device is as described in embodiment 1, and different from embodiment 1, the sealing shell is in an inverted 'U' shape, the sealing device comprises a sealing rubber ring, and the sealing shell and the substrate are sealed through the sealing rubber ring.

Example 3:

the structure of the high-collimation ultraviolet antifouling device is as described in the embodiment 2, and the substrate is in a convex shape unlike the embodiment 2.

Example 4:

the structure of the high-collimation ultraviolet antifouling device is as in example 1, and the substrate is made of high-thermal-conductivity materials such as copper, aluminum nitride or stainless steel, which is different from example 1.

Example 5:

the structure of the high-collimation ultraviolet antifouling device is as in example 1, and the preparation steps are as follows:

(6) The inside of the sealed outer shell is filled with nitrogen or argon.

Example 6:

the structure of the high-collimation ultraviolet antifouling device is as in example 2, and the preparation steps are as follows:

(1) processing a substrate made of stainless steel;

(5) the inside of the sealed outer shell is filled with nitrogen or argon.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A highly collimated ultraviolet antifouling device, characterized in that: it comprises a substrate, the upper side of the substrate is provided with a UV light source, the outside of the UV light source is provided with a sealed casing, and the sealed casing and the substrate are connected by a sealing device; A collimating lens is arranged on the ultraviolet light source.

2. The highly collimated ultraviolet antifouling device according to claim 1, characterized in that: nitrogen or argon is filled inside the sealed casing.

3. The ultraviolet antifouling device with high collimation property according to claim 1, characterized in that: the bottom edge of the sealed shell is provided with an outwardly extending flange, and the sealing device includes a sealing rubber ring, a sealing bolt, The sealing pressure ring; the sealing shell is penetrated and connected to the base plate through sealing bolts, the sealing pressure plate is pressed and distributed on the flange, and a sealing rubber ring is arranged between the flange and the base plate.

4. The highly collimated ultraviolet antifouling device according to claim 3, characterized in that: the substrate is flat.

5. The ultraviolet antifouling device with high collimation property according to claim 3, characterized in that: the substrate is provided with a groove compatible with the sealing rubber ring.

6. The ultraviolet antifouling device with high collimation property according to claim 1, characterized in that: the bottom of the sealed casing is "U" shaped, the sealing device includes a sealing rubber ring, and the gap between the sealed casing and the substrate is The space is sealed by a sealing rubber ring.

7. The ultraviolet antifouling device with high collimation property according to claim 6, characterized in that: the substrate is "convex" type.

8. The highly collimated ultraviolet antifouling device according to claim 1, characterized in that: the sealed casing is made of quartz material.

9. a highly collimated ultraviolet antifouling device and preparation method thereof according to claim 5, its preparation steps are as follows:

(1) Process the substrate, and process the groove for placing the sealing rubber ring according to the diameter of the sealing rubber ring;

(2) Coat the bottom of the ultraviolet light source with heat-conducting silicone grease and install it on the front of the substrate described in (1);

(3) Install the collimating lens on the upper part of the ultraviolet light source;

(4) Put the sealing rubber ring at the substrate groove described in (1), and place the sealing shell above the sealing rubber ring;

(5) Put the sealing pressure ring on the top of the sealing shell, and tighten the sealing bolts;

(6) Fill the inside of the sealed case with nitrogen or argon.

10. A highly collimated ultraviolet antifouling device and a preparation method thereof according to claim 6, the preparation steps of which are as follows:

(1) Processing substrate, made of stainless steel;

(2) Coat the bottom of the ultraviolet light source with thermal conductive silicone grease and install it on the front of the substrate described in (1); the wavelength of the ultraviolet light source is 300nm, and the power is 100mW;

(3) The collimating lens is installed on the upper part of the ultraviolet light source so that the light-emitting surface of the ultraviolet light source is on the focal plane of the collimating lens;

(4) Connect the sealing shell and the substrate through a sealing rubber ring;

(5) Nitrogen or argon is filled inside the sealed case.