CN2598639Y

CN2598639Y - Organic substance light degradation device

Info

Publication number: CN2598639Y
Application number: CNU032366620U
Authority: CN
Inventors: 李发生; 王敏欣; 谷庆宝; 韩梅; 王禹
Original assignee: Chinese Research Academy of Environmental Sciences
Current assignee: Chinese Research Academy of Environmental Sciences
Priority date: 2003-01-28
Filing date: 2003-01-28
Publication date: 2004-01-14
Anticipated expiration: 2013-01-28

Abstract

The utility model relates to an organic substance light degradation device used for laboratory research, which mainly comprises a reactor, a light irradiation device and a tubby bracket, wherein, the reactor consists of a plurality of parallel quartz test tubes vertically and evenly distributed on the circumference of the bracket cover; the axle center of the reactor is provided with a linear light irradiation lamp parallel to the test tubes; the external surface of the lamp is covered by a quartz sleeve; in addition, the internal wall of the side face of the bracket is coated with aluminum foil. The device is suitable for organic substance light degradation test at laboratory and has the advantages of simple structure, convenient operation, even light irradiation and high efficiency etc.

Description

Organic matter light degradation reaction unit

The utility model belongs to the photochemical reaction testing equipment, relates to a kind of device that is used for laboratory research compound light degradation behavior, can simulating natural condition under, be subjected to the irradiation of sunlight, the degraded situation of complex material in the environment.

Some black light (290-400nm) in natural environment, they are very easily absorbed by organic pollution, when having active material to exist strong photochemical reaction will take place, and organic matter is degraded, and removal to environmental pollutants is significant.But because the scattering and the absorption of gas and particle on the earth surface, the intensity of sunshine on ground can be in time, the change of place and weather and changing, and makes the reappearance of experiment be difficult to guarantee.So laboratory research needs a kind of simulating nature illumination to penetrate down the photochemical reaction system of the degradation process of pollutant.

Simple, the most common existing photochemical reactor is a kind of immersion reactor, and a fluorescent tube is immersed in the mixed liquor that is contained in the container.There are some significant disadvantages in such Photoreactor because it the influence more photochemically reactive Fundamentals do not take into account, such as the irradiation flux of light source, the absorptivity of reaction medium, the life-span of excited electronic state etc.In addition, be easy to generate precipitation at the tube outer wall of submergence, this sediment can weaken, and then stops the radiation to reactant mixture.Another kind of representative be carousel photochemical reaction instrument, it is rotated fluorescent tube or reactant liquor, that has realized reactant liquor substantially evenly is subjected to light, but needs supporting comparatively complicated mechanical devices, makes and safeguards inconvenient.

The purpose of this utility model is to improve the deficiencies in the prior art, design that a kind of volume is little, efficient is high, making is simple, easy to operate, safety, can be used for simulating nature illumination and penetrate the Study on degradation of pollutant under the condition, illumination condition can freely be changed, and reactant liquor is subjected to light experiment Photodegradation device uniformly.

The utility model is implemented by following technical solution:

Design a kind of experiment Photodegradation device, mainly form by reactor, illumination apparatus and support.It is characterized in that reactor is made up of a plurality of quartz test tubes that are parallel to each other, the diameter of quartz test tube vertically is uniformly distributed on the circumference of bracket cover at 10-15mm, and circle diameter is 90mm.The coaxial vertical placement of linear illumination lamp and support, the liquid level of reactant liquor is on same horizontal plane in the upper limb of its luminous component and the test tube; Be lined with aluminium foil on the whole inwall of support side.

The utility model has the advantages that:

1. the container with the splendid attire reactant liquor is designed to a plurality of test tubes, once can carry out a plurality of reactions simultaneously, has improved conventional efficient;

2. thinner quartz test tube has guaranteed that inner reaction tube liquid is subjected to all even higher light utilization efficiency of light;

3. the aluminium foil layer of liner can reflect back light on the one hand, improves the light utilization ratio, can prevent the injury of ultraviolet light to experiment operator on the other hand.

4. linear fluorescent tube can freely pick and place, and can change by experimental needs, and is easy to operate.Such as, lamp can be high-pressure sodium lamp, medium pressure mercury lamp, low pressure mercury lamp, xenon lamp etc., when wherein adopting the high and medium voltage mercury lamp, needs logical recirculated water in lamp adds quartzy water collar, to reduce the temperature of lamp;

5. applied widely, can be used for the compound light degradation experimental study under the various illumination conditions, the light degradation of all contaminations under all right simulating natural condition.

Below in conjunction with drawings and Examples the utility model is further elaborated:

Accompanying drawing is the structure of an organic matter Photodegradation device.One 400 watts linear high-pressure sodium lamps (3) are contained in quartz sleeve (5) lining, connect power supply by lead (1), quartz sleeve is fixed on the place, axle center of tubbiness bracket cover (6), 16 holes evenly distribute on the circumference at axle center 90mm place, vertically insert a quartz test tube (4) in each hole, regulate the relative altitude of lamp and test tube, the liquid level that makes reactant liquor in the upper limb of luminous component of lamp and the test tube is on same horizontal plane, the side of support (7) has been opened 4 very big windows (8) symmetrically, the temperature of test tube place environment and surrounding environment is consistent substantially, and the inwall of whole side is lined with aluminium foil.

During experiment, at first connect the recirculated water in the quartz sleeve (5), the flow direction of recirculated water is to (9) from (2), connect power supply by lead (1) afterwards, make high-pressure sodium lamp (3) luminous, each quartz test tube (4) is loaded onto reactant liquor respectively again and inserted successively in the bracket cover (6), certain hour takes out the test tube sample detecting at interval.

Claims

1. laboratory Photodegradation device, comprise one group of quartz test tube that is parallel to each other (4), linear illumination lamp (3), quartz sleeve (5), barrel shape support (6,7) and aluminium foil liner, it is characterized in that one group of quartz test tube vertically is uniformly distributed on the circumference of bracket cover, the coaxial vertical placement of linear illumination lamp and support, the liquid level of reactant liquor is at same horizontal plane in the top of lamp luminescence part and the test tube.

2. according to the Photodegradation device of right 1 requirement, the diameter that it is characterized in that quartz test tube is at 10-15mm, and the distance of shaft centers of test tube and illumination lamp is 90mm.

3. the Photodegradation device that requires according to right 1 is characterized in that serving as a contrast aluminium foil on the whole inwall of support side.