阅读说明：本技术 一种光催化过滤器试验箱及其测试方法 (Photocatalytic filter test box and test method thereof ) 是由 法布里齐亚·盖佐 于 2019-11-25 设计创作，主要内容包括：本发明公开了一种光催化过滤器试验箱及其测试方法。该光催化过滤器试验箱包括顶部敞口的箱体和可拆卸扣合在所述箱体顶部的顶盖,所述顶盖设有供光线射入所述箱体内的透明部；所述箱体的上部设有进气口,下部设有出气口,所述进气口和所述出气口之间的所述箱体内壁上设有支撑部,所述支撑部上设有可拆卸的承载空气过滤器的样品架。本发明所述的光催化过滤器试验箱,其结构简单,适用于小型实用使用,且适用于过滤器和固体产品的测试。(The invention discloses a photocatalytic filter test box and a test method thereof. The photocatalytic filter test box comprises a box body with an open top and a top cover detachably buckled on the top of the box body, wherein the top cover is provided with a transparent part for light rays to enter the box body; the upper portion of box is equipped with the air inlet, and the lower part is equipped with the gas outlet, the air inlet with between the gas outlet be equipped with the supporting part on the box inner wall, be equipped with detachable on the supporting part and bear air cleaner's sample frame. The photocatalytic filter test box is simple in structure, suitable for small practical use and suitable for testing filters and solid products.)

1. A photocatalytic filter test chamber is characterized in that: the light source box comprises a box body with an open top and a top cover detachably buckled on the top of the box body, wherein the top cover is provided with a transparent part for light rays to enter the box body; the upper portion of box is equipped with the air inlet, and the lower part is equipped with the gas outlet, the air inlet with between the gas outlet be equipped with the supporting part on the box inner wall, be equipped with detachable on the supporting part and bear air cleaner's sample frame.

2. A photocatalytic filter test cell as in claim 1, characterized by: and a first sealant is arranged between the top cover and the top of the box body.

3. A photocatalytic filter test cell as in claim 2, characterized by: the top cover is a frame cover with the same shape as the cross section of the top of the box body, the transparent part is a light-focusing transparent plate arranged below the frame cover, and first sealant is arranged between the frame cover and the transparent plate and between the transparent plate and the box body.

4. A photocatalytic filter test cell as in claim 3, characterized by: the periphery of the top of the box body is provided with a flange extending outwards, and the edge of the top cover is connected with the flange through a screw or a clamping device.

5. A photocatalytic filter test cell as in claim 4, characterized by: and a second sealant is arranged between the sample frame and the supporting part.

6. A photocatalytic filter test cell as in claim 5, characterized by: the supporting part is a boss arranged along the circumferential direction of the inner wall of the box body.

7. A photocatalytic filter test cell as in claim 6, characterized by: the inner wall of the box body is coated with an anticorrosive layer and/or an anti-reflection layer; the box body is a stainless steel rectangular cavity; and a window for air to pass through is arranged at the position of the sample rack bearing the air filter.

8. A photocatalytic filter test cell as in claim 7, characterized by: the length of the inner cavity of the box body is 15cm, the width of the inner cavity is 11cm, the height of the inner cavity is 5cm, and the thickness of the bottom wall is 0.4 cm; the distance between the central line of the air inlet and the bottom surface of the flange is 2 cm; the distance between the central line of the air outlet and the bottom wall of the inner cavity of the box body is 0.5 cm;

the thickness of the flange is 0.4cm, and the width of the flange is 2.53 cm; the thickness of the supporting part is 0.5cm, and the width of the supporting part is 1 cm; the thickness of the sample holder is 5 mm; the thickness of the top cover is 0.4 cm.

9. A photocatalytic filter test cell as in claim 3, characterized by: the thickness of the top cover or the frame cover is 0.4cm, and the width of the top cover or the frame cover is 2.5 cm; the thickness of the transparent part or the quartz glass plate is 0.2 cm. .

10. A test method of a photocatalytic filter test chamber is characterized in that: the test method using the photocatalytic filter test chamber according to claim 8 or 9 comprises the following steps:

1) under the irradiation of ultraviolet light or wind and light to TiO₂Testing the removal efficiency of nitrogen oxides by using a filter sample; firstly, placing the filter on a sample rack, then sealing a test box, connecting the air inlet to a pipeline of a gas source, and pumping the gas to be tested into the pipeline by a compressor; the temperature in the test chamber is controlled to be about 70 percent, the temperature is controlled to be 25 ℃, and the irradiance is at least 1 milliwatt/square centimeter;

2) the NO gas flow enters the test box for 2-5min, and the gas is waited to be uniformly distributed in the test box; the gas outlet is connected with a gas analyzer, but no data is recorded; after 2-5min, the ultraviolet lamp is turned on, and the gas analyzer starts to record data; the gas analyzer is selected from an Agilent 490 micro gas chromatography system;

3) when testing the solid sample, the sample holder is removed and the solid sample is placed on the bottom of the test chamber for testing.

Technical Field

The invention relates to the technical field of test equipment, in particular to a test box for an air and water filtration test system or a photocatalytic filter and a test method thereof.

Background

Since the photocatalytic material is non-toxic to the human body and does not cause secondary pollution, only non-toxic minerals are produced, and in recent years, photocatalysts have been used in various air filtering materials and systems, and thus have been widely studied and tested. The development of these materials requires considerable effort in the laboratory, and before using them it is necessary to evaluate their effectiveness in removing the target pollutants from the air and their overall performance, and therefore the necessary tests are carried out, and for them a suitable test device is required.

Utility model patent CN207357174U discloses a photocatalysis air filter material experimental apparatus, and entire system is more complicated, itself is the product that can only purchase and be used for monitoring specific environment. Due to the presence of the data collection and analysis system, it can be very expensive and may not be particularly suitable for small business or laboratory research projects, nor for water testing filtration systems.

The invention CN102489348A discloses a laboratory for monitoring the purification efficiency of air purification products, which cannot be used for testing the filtration products, and only provides a laboratory for monitoring the environment and monitoring the photocatalytic reaction.

Disclosure of Invention

In order to remedy the drawbacks of the prior art, the object of the present invention is to provide a photocatalytic filter test cell which is simple in structure, suitable for use and suitable for the testing of filters and solid products.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a photocatalytic filter test box comprises a box body with an open top and a top cover detachably buckled on the top of the box body, wherein the top cover is provided with a transparent part for light rays to enter the box body; the upper portion of box is equipped with the air inlet, and the lower part is equipped with the gas outlet, the air inlet with between the gas outlet be equipped with the supporting part on the box inner wall, be equipped with detachable on the supporting part and bear air cleaner's sample frame.

Further, a first sealant is arranged between the top cover and the top of the box body.

As a specific implementation mode, the top cover is a frame cover with the same shape as the cross section of the top of the box body, the transparent part is a glass plate arranged below the frame cover, and first sealant is arranged between the frame cover and the glass plate and between the glass plate and the box body.

Further, the periphery of the top of the box body is provided with an outwardly extending flange, and the edge of the top cover is connected with the flange through a screw or a clamping device.

Furthermore, a second sealant is arranged between the sample frame and the supporting part.

Further, the supporting part is a boss arranged along the circumferential direction of the inner wall of the box body.

Further, the inner wall of the box body is coated with an anti-corrosion layer and/or an anti-reflection layer.

Further, the box body is a stainless steel rectangular cavity.

Further, the sample holder is provided with a window for air to pass through, wherein the window is arranged at the position of the air filter.

Further, the length of the inner cavity of the box body is 15cm, the width of the inner cavity is 11cm, the height of the inner cavity is 5cm, and the thickness of the bottom wall is 0.4 cm; the distance between the central line of the air inlet and the bottom surface of the flange is 2 cm; the distance between the central line of the air outlet and the bottom wall of the inner cavity of the box body is 0.5 cm;

the thickness of the flange is 0.4cm, and the width of the flange is 2.53 cm; the thickness of the supporting part is 0.5cm, and the width of the supporting part is 1 cm; the thickness of the sample holder is 5 mm; the thickness of the top cover is 0.4 cm.

Further, the thickness of the top cover or the frame cover is 0.4cm, and the width of the top cover or the frame cover is 2.5 cm; the thickness of the transparent part or the quartz glass plate is 0.2 cm. .

In addition, the invention also discloses a testing method of the photocatalytic filter test box, which adopts the photocatalytic filter test box to test and comprises the following steps:

1) under the irradiation of ultraviolet light or wind and light to TiO₂Testing the removal efficiency of nitrogen oxides by using a filter sample; firstly, placing the filter on a sample rack, then sealing a test box, connecting the air inlet to a pipeline of a gas source, and pumping the gas to be tested into the pipeline by a compressor; the temperature in the test chamber is controlled to be about 70 percent, the temperature is controlled to be 25 ℃, and the irradiance is at least 1 milliwatt/square centimeter;

2) the NO gas flow enters the test box for 2-5min, and the gas is waited to be uniformly distributed in the test box; the gas outlet is connected with a gas analyzer, but no data is recorded; after 2-5min, the ultraviolet lamp is turned on, and the gas analyzer starts to record data; the gas analyzer is selected from an Agilent 490 micro gas chromatography system;

3) when testing the solid sample, the sample holder is removed and the solid sample is placed on the bottom of the test chamber for testing.

Compared with the prior art, the invention has the following beneficial technical effects:

1) the photocatalytic filter test box has a simple structure, has no redundant data collection and analysis system, only keeps the effect of a sealed cavity, and has the advantages that other functions (such as an air flow system connected with an air inlet, a data system externally connected with air outlet and a light source system at the top of a transparent part, and an operator can freely select according to actual conditions) can be externally connected, the whole manufacturing cost is low, and the photocatalytic filter test box is suitable for small enterprises or laboratories;

in addition, be provided with detachable sample frame, can carry out the selectivity dismouting to solid sample or filter, it is high to use the flexibility.

2) The photocatalytic material test chamber of the present invention is constructed in a manner that allows for two types of sample testing: a solid sample and a filter; when testing the filter, the sample holder will have a window positioned to allow air to pass through the filter sample. The test chamber is a novel design for testing photocatalytic filters and is a simple and portable test chamber.

Drawings

FIG. 1 is a schematic diagram of a photocatalytic filter test cell according to the present invention;

FIG. 2 is a top view of a photocatalytic filter test cell according to the present invention;

FIG. 3 is a reference diagram of the present invention in use for testing a filter;

FIG. 4 is a reference view of the present invention in use for testing a solid sample;

FIG. 5 is a schematic structural view of another embodiment of the present invention;

FIG. 6 is a top view of a structure according to another embodiment of the present invention;

FIG. 7 is a reference diagram of a use state of another embodiment of the present invention for testing a filter;

fig. 8 is a reference view showing a state of use when another embodiment of the present invention is used for testing a solid sample.

Wherein: 1. 1': a box body; 11. 11': an air inlet; 12. 12': an air outlet; 13. 13': a flange; 14. 14': a support portion; 2. 2': a top cover; 21. 21': a transparent portion; 3. 3': a first sealant; 4. 4': a sample holder; 5. 5': a second sealant; 6. 6': a solid sample; 7. 7': and (3) a filter.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.