CN210199081U - Small-size purifying effect evaluation device - Google Patents
Small-size purifying effect evaluation device Download PDFInfo
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- CN210199081U CN210199081U CN201921138777.9U CN201921138777U CN210199081U CN 210199081 U CN210199081 U CN 210199081U CN 201921138777 U CN201921138777 U CN 201921138777U CN 210199081 U CN210199081 U CN 210199081U
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- air chamber
- pollution source
- upper cover
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Abstract
The utility model discloses a small-size purifying effect evaluation device, its characterized in that: including detector, air chamber and the upper cover that is connected with the air chamber, the air chamber has interior appearance chamber, and interior cavity is provided with the support column, and support column one end is installed in the interior bottom surface of air chamber, and the ventilative pollution source is installed to the support column other end and is placed the dish ventilative pollution source place and open on the dish and have a plurality of bleeder vents, bleeder vent evenly distributed places the dish at ventilative pollution source, the upper cover terminal surface on open and to have and be used for treating the gas outlet of being connected with the detector, the gas outlet communicates with each other with interior cavity, the air chamber side is opened has the inlet port the same with interior cavity, the distance that forms between inlet port and the air chamber bottom is less than the half of air chamber total height, places a set radius and. Utilize the utility model discloses device and evaluation method can be fast, audio-visual assess its formaldehyde purification effect of air purification product to the difference.
Description
Technical Field
The utility model relates to a purify test equipment, specifically be a small-size purifying effect evaluation device.
Background
Currently, the indoor air quality becomes the focus of attention of people, and formaldehyde is regarded as the first carcinogen by the world health organization as the first killer of decoration pollution, and is particularly paid high attention to people.
In order to meet the requirements of people on good air quality, various formaldehyde removing products appear in the market, various products are mixed with fish and dragon, common consumers cannot distinguish which product has a better formaldehyde removing effect, and high-quality products also cannot visually show the formaldehyde removing effect to the consumers. Although many products can provide a third-party formaldehyde removal rate detection report, the detected products are self-checked by manufacturers, the detected products may not be consistent with actual sold products, and the persuasion of the detection report is greatly reduced.
The method for measuring the purification effect of the purification product is specified in national standard QB/T2761-2006 method for measuring the purification effect of the indoor air purification product, and the method is suitable for accurately and quantitatively detecting the purification effect. However, this method requires many large instruments, including two 1.5m instruments3Large-scale instruments such as climate chambers, spectrophotometers, gas chromatographs and the like. Although the detection result of the method is accurate, the detection cost is high, the detection method is complicated, the detection period is long, the method can be operated only by a professional detection mechanism, and the method cannot be adopted by general enterprises or individuals.
At present, no product can simply, conveniently and quickly carry out visual evaluation on the formaldehyde removal effect of the purification product in the market, and people hope that a product or a method can simply, conveniently and quickly carry out visual qualitative evaluation on the formaldehyde removal effect of the purification product.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, with low costs, can audio-visual display purify the product and purify a small-size purifying effect evaluation device of effect of formaldehyde.
In order to achieve the above object, the utility model provides a following technical scheme:
a small-sized purification effect evaluation device is characterized in that: including air chamber and the upper cover that is connected with the air chamber, the air chamber has interior appearance chamber, and interior cavity is provided with the support column, and support column one end is installed in the interior bottom surface of air chamber, and the ventilative pollution source is installed to the support column other end and is placed the dish ventilative pollution source place and open on the dish have a plurality of bleeder vents, bleeder vent evenly distributed places the dish at ventilative pollution source, the upper cover terminal surface on open and to have the gas outlet, the gas outlet communicates with each other with interior cavity, open the air chamber side has the inlet port the same with interior cavity, the distance that forms between inlet port and the air chamber bottom is less than the half of air chamber total height, places a set radius and is less than air chamber bottom surface radius.
This scheme of adoption: place the dish through placing the sample that awaits measuring at ventilative pollution source, connect the upper cover soon, then connect the tester in the upper cover gas outlet, can be one or more product carry out the contrast test to the analysis goes out harmful substance, like formaldehyde.
Preferably, the air chamber and the upper cover are connected in a manner that: tightly connected by matching screw threads.
This scheme of adoption: the air tightness can be ensured, and the testing accuracy is improved.
Preferably, the ratio of the radius of the placing disc to the radius of the bottom surface of the air chamber is 1: 2-5.
Preferably, the support column is located on the central axis of the air chamber, and the corresponding air outlet hole is located on the central axis of the upper cover.
Preferably, the height of the support column is one half of the total height of the air chamber.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. this product is equipped with air inlet and gas outlet, guarantees that the atmospheric pressure in the air chamber is stable, and just the same with external atmospheric pressure.
2. The pollution source is placed on the pollution source placing plate, and the placing plate is provided with a plurality of air holes, so that the pollution source can uniformly release formaldehyde to a plurality of directions, and the concentration of the formaldehyde in the air chamber can be quickly balanced.
3. The air inlet is arranged below half of the height of the side face of the air chamber, and the air outlet is arranged on the axis of the upper cover, so that the air flow is ensured to enter from the air inlet in the detection process, and then is mixed with the gas in the air chamber, and then is detected by the formaldehyde instrument through the air outlet.
In conclusion, the device is composed of a small detachable air chamber and an upper cover, wherein the upper cover is connected with an air outlet and can be connected with a portable formaldehyde detector; the small-sized air chamber includes: the air inlet, the support column, ventilative pollution sources place the dish.
The pollution sources which are not subjected to purification treatment or are subjected to purification treatment are placed on the placing plate, the formaldehyde emission of the pollution sources with different purification effects is different, the formaldehyde concentration in the air chamber is different, the pollution sources are connected with the portable formaldehyde instrument through the air outlet, the formaldehyde concentration in the air chamber is rapidly measured, and the purification effect is judged according to the formaldehyde concentration.
By utilizing the device and the evaluation method, the formaldehyde purification effect of different air purification products can be evaluated quickly and visually. The device has the advantages of light structure, low cost and simple and convenient operation, meets the requirements of people on visually and quickly judging the formaldehyde removal effect of the purification product, and can be quickly pushed to the market.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
fig. 2 is a cross-sectional view taken along the direction a-a in fig. 1 according to the present invention;
FIG. 3 is a schematic view of the structure on the chamber.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Please refer to fig. 1-3, the present invention provides a technical solution:
the device comprises a detachable small air chamber and an upper cover, wherein the air chamber 1 and the upper cover 2 are tightly connected through matched threads, specifically, the air chamber 1 can adopt an external thread 11, and the upper cover adopts an internal thread 21, so that the air tightness is ensured.
Wherein 2 parts of upper cover are connected with protruding post, protruding post 31, and it has gas outlet 3 to open in the protruding post 31, and gas outlet 3 is located the upper cover axis, and gas outlet 3 can be connected with the detector, and the detector adopts but not limited to: the portable formaldehyde detector is used for rapidly measuring the concentration of formaldehyde in the air chamber; the structure and the testing mode of the portable formaldehyde detector are the prior art and are not explained.
the air inlet 10 is positioned on the side surface of the air chamber, and the distance between the air inlet 10 and the bottom of the air chamber is less than one half of the total height of the air chamber; the air inlet 10 and the air outlet 3 of the scheme ensure that the air pressure in the air chamber is stable and is the same as the external air pressure, so that the test reliability is improved;
a support column 4: the supporting column is positioned on the central axis of the bottom surface of the air chamber, and the height of the supporting column is one half of the total height of the air chamber;
an air-permeable pollution source placing tray 6: the pollution source placing disc is positioned on the supporting column and connected with the supporting column, the radius ratio of the placing disc to the bottom surface of the gas chamber is 1: 2-5, and the radius of the placing disc is preferably less than one half of the radius of the bottom surface of the gas chamber;
a breather hole 61: the air holes are positioned on the pollution source placing plate and are uniformly distributed on the placing plate; the air holes are arranged in a mode of outward diffusion by taking the supporting columns as centers, if the pollution source is placed on the pollution source placing plate, and the placing plate is provided with the plurality of air holes, the pollution source can be guaranteed to uniformly release formaldehyde in multiple directions, and the concentration of the formaldehyde in the air chamber can be quickly balanced.
The invention is further explained: the air inlet 10 is arranged below half of the height of the side face of the air chamber, the air outlet is arranged on the axial line of the upper cover, the air flow is ensured to enter from the air inlet in the detection process and is mixed with the air in the air chamber, and then the air flow is detected by the formaldehyde instrument through the air outlet, the pollution source which is not subjected to purification treatment or is subjected to purification treatment is arranged on the breathable pollution source placing plate 6, the formaldehyde emission of the pollution sources with different purification effects is different, the formaldehyde concentration in the air chamber is different, the air inlet is connected with the portable formaldehyde instrument through the air outlet, the formaldehyde concentration in the air chamber is rapidly measured, and the purification effect is judged according to the formaldehyde concentration.
The method for rapidly evaluating the formaldehyde purification effect by using the product device comprises the following steps:
two sets of devices (A is a blank chamber, B is a sample chamber) are used for rapidly determining the formaldehyde purifying effect of the product at normal temperature and normal pressure. Selecting two same pollution sources, preferably selecting artificial boards with large formaldehyde emission, such as medium density fiberboard, plywood, particle board and the like; one part of the pollution source is not processed, the other part of the pollution source is purified by a purification product to be evaluated, after the purification is finished, the two parts of the pollution source are respectively placed into a blank chamber and a sample chamber, and an upper cover is screwed; after 30 minutes, the formaldehyde concentrations in the blank and sample chambers, C0 and C1, were rapidly measured using a portable formaldehyde detector, preferably a formaldehyde meter model INTERSCAN 4160, or a PPM-HTV, uk. When C0 is less than or equal to C1, the purifying product does not have the capability of purifying formaldehyde; when C0> C1, the purification product is shown to have the capability of purifying formaldehyde, and the larger the difference, the better the capability of the product in purifying formaldehyde is shown to be.
The device and the evaluation method can also be used for rapidly comparing the formaldehyde purification capacity of n different purification products, and are convenient for selecting the best formaldehyde purification product. Selecting n +1 parts of the same pollution source by using n +1 sets of devices (A is a blank chamber, B1-Bn are sample chambers); one part of the pollution source is not treated, n parts of the pollution source are respectively purified by a purification product to be evaluated, after the purification is finished, n +1 parts of the pollution source are respectively placed into a blank chamber and a sample chamber, and an upper cover is screwed; after 30 minutes, the formaldehyde concentration in the blank chamber C0 and the formaldehyde concentration in the sample chamber Cn were quickly determined using a portable formaldehyde detector. The difference between C0 and Cn is the largest, and the product is the best formaldehyde purification product.
The implementation mode is as follows:
comparing and selecting two medium density fiberboard blocks of 10CM multiplied by 10CM as a pollution source, wherein 1 medium density fiberboard block is not treated at all, and the other 1 medium density fiberboard block is purified by a purification product; placing the two plates on two pollution source placing plates of the device respectively; screwing the upper cover, and standing for 30 minutes under the same condition; the gas collecting port of the portable formaldehyde instrument is connected with the gas outlet of the device, and the concentration of formaldehyde in the device is rapidly measured.
Comparing two, selecting 5 plywood blocks of 10CM x 10CM as pollution source, 1 plywood block does not need any treatment, and the other 4 plywood blocks are respectively purified by 4 types of purification products; placing 5 plates on 5 sets of pollution source placing discs of the device respectively; screwing the upper cover, and standing for 30 minutes under the same condition; the gas collecting port of the portable formaldehyde instrument is connected with the gas outlet of the device provided by the invention, so that the formaldehyde concentration can be rapidly measured.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A small-sized purification effect evaluation device is characterized in that: including detector, air chamber and the upper cover that is connected with the air chamber, the air chamber has interior appearance chamber, and interior cavity is provided with the support column, and support column one end is installed in the interior bottom surface of air chamber, and the ventilative pollution source is installed to the support column other end and is placed the dish ventilative pollution source place and open on the dish and have a plurality of bleeder vents, bleeder vent evenly distributed places the dish at ventilative pollution source, the upper cover terminal surface on open and to have and be used for treating the gas outlet of being connected with the detector, the gas outlet communicates with each other with interior cavity, the air chamber side is opened has the inlet port the same with interior cavity, the distance that forms between inlet port and the air chamber bottom is less than the half of air chamber, ventilative pollution source is placed a set radius and is.
2. The small purifying effect evaluating device according to claim 1, wherein: the connection mode of the air chamber and the upper cover adopts: tightly connected by matching screw threads.
3. A small purification effect evaluation device according to claim 1 or 2, wherein: the ratio of the radius of the placing disc to the radius of the bottom surface of the air chamber is 1: 2-5.
4. A small purification effect evaluation device according to claim 3, wherein: the support column is positioned on the central axis of the air chamber, and the corresponding air outlet hole is positioned on the central axis of the upper cover.
5. The small purifying effect evaluating device according to claim 4, wherein: the height of the supporting column is half of the total height of the air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921138777.9U CN210199081U (en) | 2019-07-19 | 2019-07-19 | Small-size purifying effect evaluation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921138777.9U CN210199081U (en) | 2019-07-19 | 2019-07-19 | Small-size purifying effect evaluation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210199081U true CN210199081U (en) | 2020-03-27 |
Family
ID=69868144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921138777.9U Expired - Fee Related CN210199081U (en) | 2019-07-19 | 2019-07-19 | Small-size purifying effect evaluation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210199081U (en) |
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2019
- 2019-07-19 CN CN201921138777.9U patent/CN210199081U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20210719 |