CN204649708U - A kind of activated charcoal formaldehyde absorbing determinator - Google Patents
A kind of activated charcoal formaldehyde absorbing determinator Download PDFInfo
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- CN204649708U CN204649708U CN201520160484.6U CN201520160484U CN204649708U CN 204649708 U CN204649708 U CN 204649708U CN 201520160484 U CN201520160484 U CN 201520160484U CN 204649708 U CN204649708 U CN 204649708U
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- formaldehyde
- activated charcoal
- filling tube
- generating apparatus
- determinator
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Abstract
The utility model relates to a kind of activated charcoal formaldehyde absorbing determinator, comprises activated charcoal filling tube (1), formaldehyde collection device and formaldehyde generating apparatus; Described formaldehyde generating apparatus, activated charcoal filling tube (1) are connected by pipeline successively with formaldehyde generating apparatus; Activated charcoal (15) is filled with in described activated charcoal filling tube (1); Described formaldehyde collection device comprises formaldehyde collection bottle (8) and formaldehyde collection solution (9); Described formaldehyde collection bottle (8) connects stable gas pressure device (13) by pipeline; Owing to adopting said structure, have simple and reasonable, additionally by the setting of nitrogen purge flow rate and the control of bath temperature, advantageously in the Stable Release of formalin; Additionally by nitrogen gas generator and formaldehyde collection bottle with the use of, ensure that the stable gas pressure of whole experimental provision, more precisely, fast can obtain experimental data.
Description
Technical field
The utility model relates to a kind of use for laboratory formaldehyde absorbing rate determinator, particularly a kind of activated charcoal formaldehyde absorbing determinator.
Background technology
Formaldehyde is a kind of colourless gas with intense stimulus smell, and united state health organization is defined as carcinogenic and teratogenesis material.The World Health Organization (WHO) specifies that the content of every cubic metre of formaldehyde in indoor air more than 0.08 milligram, otherwise must not will affect human body sense of smell, causes abnormal pulmonary function, memory and hypophrenia, immunologic dysfunction, and then brings out various disease.
And activated charcoal is a kind of porous carbon containing matter, it has highly developed hole structure, the porous structure of activated charcoal is which provide a large amount of surface areas, fully can contact with gas, thus impart absorption property specific to activated charcoal, make it be very easy to reach the object absorbing and collect impurity.Be widely used in clean water treatment and indoor air purification, especially the absorption of the harmful gas such as formaldehyde.The adsorbability of activated charcoal can be divided into liquid and gaseous state two kinds, and in liquid towards, the absorption of color can adopt the measurements such as methylenum careuleum adsorptive value and iodine sorption value, and also lacks effective measurement measure so far for the absorption of the gases such as formaldehyde.
Therefore, be necessary to make improvements.
Utility model content
Technical assignment of the present utility model is for the deficiencies in the prior art, provides a kind of and detects sensitive, easy and simple to handle, reasonable in design and can meet a kind of activated charcoal formaldehyde absorbing rate determinator of Site Detection.
For achieving the above object, the utility model solves the technical scheme that its technical matters adopts and is: a kind of activated charcoal formaldehyde absorbing determinator, comprises activated charcoal filling tube, formaldehyde collection device and formaldehyde generating apparatus; Described formaldehyde generating apparatus, activated charcoal filling tube are connected by pipeline successively with formaldehyde generating apparatus; The first seal valve and the second seal valve is respectively equipped with pipeline link before and after described activated charcoal filling tube; Described determinator also comprises nitrogen gas generator, passes through pipeline connection with formaldehyde generating apparatus; Described formaldehyde generating apparatus comprises water bath device, formaldehyde saturated solution, Erlenmeyer flask and the rack of placing distilled water; Be contained with formaldehyde saturated solution in described Erlenmeyer flask, be placed on the rack bottom water bath device; Activated charcoal is filled with in described activated charcoal filling tube; Described formaldehyde collection device comprises formaldehyde collection bottle and formaldehyde collection solution; Described formaldehyde collection bottle connects stable gas pressure device by pipeline.
As a kind of preferred version of the present utility model, described water bath device is also provided with the thermometer of test water bath temperature.
As a kind of preferred version of the present utility model, described formaldehyde collection bottle is provided with liquid level gauge.
As a kind of preferred version of the present utility model, described formaldehyde collection solution can be ultrapure water.
The beneficial effects of the utility model: owing to adopting said structure, have simple and reasonable, purge and the heating water bath of PARA FORMALDEHYDE PRILLS(91,95) solution, advantageously in the Stable Release of formalin additionally by nitrogen gas generator; Additionally by stable gas pressure device and formaldehyde collection bottle with the use of, ensure that the stable gas pressure of whole experimental provision, more precisely, fast can obtain experimental data.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one structural representation.
Reference numeral is: activated charcoal filling tube 1, nitrogen gas generator 2, distilled water 3, water bath device 4, formaldehyde saturated solution 5, Erlenmeyer flask 6, rack 7, formaldehyde collection bottle 8, formaldehyde collection solution 9, first seal valve 10, second seal valve 11, thermometer 12, stable gas pressure device 13, liquid level gauge 14, activated charcoal 15.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one:
As shown in Figure 1, a kind of activated charcoal formaldehyde absorbing determinator, comprises activated charcoal filling tube 1, formaldehyde collection device and formaldehyde generating apparatus; Formaldehyde generating apparatus, activated charcoal filling tube 1 are connected by pipeline successively with formaldehyde absorption device; Be respectively equipped with the first seal valve 10 and the second seal valve 11 with pipeline link before and after activated charcoal filling tube 1; Determinator also comprises nitrogen gas generator 2, passes through pipeline connection with formaldehyde generating apparatus; Formaldehyde generating apparatus comprises water bath device 4, formaldehyde saturated solution 5, Erlenmeyer flask 6 and the rack 7 of placing distilled water 3; Be contained with formaldehyde saturated solution 5 in described Erlenmeyer flask 6, be placed on the rack 7 bottom water bath device 4; Activated charcoal 15 is filled with in activated charcoal filling tube 1; Formaldehyde collection device comprises formaldehyde collection bottle 8 and formaldehyde collection solution 9; Formaldehyde collection bottle 8 connects stable gas pressure device 13 by pipeline, water bath device 4 is also provided with the thermometer 12 of test water-bath 3 temperature; Formaldehyde collection bottle 8 is provided with liquid level gauge 14; Formaldehyde collection solution 9 can be ultrapure water.
Formaldehyde collection solution 9 can be the easily molten organic solvent of ultrapure water, analytically pure ethanol or other formaldehyde, observe the liquid level gauge 14 of formaldehyde collection solution 9 side, make the amount adding formaldehyde collection solution 9 between 100-300mL, prevent liquid measure not enough, formaldehyde can not be absorbed completely, prevent hypervolia simultaneously, prevent suck-back.
The course of work of this example is divided into 2 parts to complete:
Step one:
Coupled together by test unit in advance, be filled with activated charcoal 3 in activated charcoal filling tube 1, the first seal valve 10 and the second seal valve 11 are in opening, first start stable gas pressure device 13 in addition, the air pressure in formaldehyde collection bottle 8 is tended towards stability.
The formaldehyde saturated solution 5 of excess volume is placed in Erlenmeyer flask 6, then Erlenmeyer flask 6 is placed on the rack 7 in water bath device 4, the distilled water 3 of uniform temperature is poured in water bath device 4, heating water bath is carried out to the formaldehyde saturated solution 5 in Erlenmeyer flask 6, temperature-controllable, between 20-60 DEG C, can control the temperature of water-bath 3 in real time by the thermometer 12 be provided with outside water bath device 4.
While heating water bath, Erlenmeyer flask 6 connects nitrogen gas generator 2 by pipeline, start nitrogen gas generator 2, nitrogen is regulated to carry out purging formaldehyde saturated solution 5 with the flow velocity of 2-5L/min, formaldehyde is made from solution, to overflow constant speed by activated charcoal filling tube 1 together with nitrogen with certain speed, part formaldehyde is adsorbed by activated charcoal 15, the formaldehyde do not adsorbed by pipeline absorb by the formaldehyde collection solution 9 in formaldehyde collection bottle 8, calculate formaldehyde absorption total amount by the liquid level gauge 14 of formaldehyde collection solution 9 side, step one completes.
Step 2:
Identical with step one device, difference needs the first seal valve 10 and the second seal valve 11 to be in closed condition, formaldehyde collection device and formaldehyde generating apparatus are directly coupled together by pipeline, the formaldehyde saturated solution 5 of excess volume is placed in Erlenmeyer flask 6, then Erlenmeyer flask 6 is placed on the rack 7 in water bath device 4, the distilled water 3 of uniform temperature is poured in water bath device 4, heating water bath is carried out to the formaldehyde saturated solution 5 in Erlenmeyer flask 6, temperature-controllable is between 20-60 DEG C, the temperature of water-bath 3 can be controlled in real time by the thermometer 12 be provided with outside water bath device 4.
While heating water bath, Erlenmeyer flask 6 connects nitrogen gas generator 2 by pipeline, start nitrogen gas generator 2, nitrogen is regulated to carry out purging formaldehyde saturated solution 5 with the flow velocity of 2-5L/min, make formaldehyde from solution, overflow constant speed with certain speed together with nitrogen and pass through pipeline, absorb by the formaldehyde collection solution 9 in formaldehyde collection bottle 8, calculate formaldehyde absorption total amount by the liquid level gauge 14 of formaldehyde collection solution 9 side, step 2 completes.
In step 2, formaldehyde absorbent concentration is whole formaldehyde absorption concentration in formaldehyde collection solution 9, and in step one, formaldehyde absorbent concentration is activated charcoal absorption strength and formaldehyde collection solution 9 sum; In step 2 and step one, the difference of formaldehyde absorbent concentration is activated charcoal formaldehyde absorbing value; I.e. activated charcoal formaldehyde absorbing value=step 2 formaldehyde absorbent concentration-step one formaldehyde absorbent concentration; Very practical and convenient, accuracy is high.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Although more employ activated charcoal filling tube 1 herein, nitrogen gas generator 2, distilled water 3, water bath device 4, formaldehyde saturated solution 5, Erlenmeyer flask 6, rack 7, formaldehyde collection bottle 8, formaldehyde collection solution 9, first seal valve 10, second seal valve 11, thermometer 12, stable gas pressure device 13, liquid level gauge 14, term such as activated charcoal 15 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (4)
1. an activated charcoal formaldehyde absorbing determinator, comprises activated charcoal filling tube (1), formaldehyde collection device and formaldehyde generating apparatus; It is characterized in that: described formaldehyde generating apparatus, activated charcoal filling tube (1) are connected by pipeline successively with formaldehyde absorption device; The first seal valve (10) and the second seal valve (11) is respectively equipped with pipeline link before and after described activated charcoal filling tube (1); Described determinator also comprises nitrogen gas generator (2), passes through pipeline connection with formaldehyde generating apparatus; Described formaldehyde generating apparatus comprises water bath device (4), formaldehyde saturated solution (5), Erlenmeyer flask (6) and the rack (7) of placing distilled water (3); Be contained with formaldehyde saturated solution (5) in described Erlenmeyer flask (6), be placed on the rack (7) of water bath device (4) bottom; Activated charcoal (15) is filled with in described activated charcoal filling tube (1); Described formaldehyde collection device comprises formaldehyde collection bottle (8) and formaldehyde collection solution (9); Described formaldehyde collection bottle (8) connects stable gas pressure device (13) by pipeline.
2. a kind of activated charcoal formaldehyde absorbing determinator according to claim 1, described water bath device (4) is also provided with the thermometer (12) of test distilled water (3) temperature.
3. a kind of activated charcoal formaldehyde absorbing determinator according to claim 1, described formaldehyde collection bottle (8) is provided with liquid level gauge (14).
4. a kind of activated charcoal formaldehyde absorbing determinator according to claim 1, described formaldehyde collection solution (9) is ultrapure water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160484.6U CN204649708U (en) | 2015-03-20 | 2015-03-20 | A kind of activated charcoal formaldehyde absorbing determinator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160484.6U CN204649708U (en) | 2015-03-20 | 2015-03-20 | A kind of activated charcoal formaldehyde absorbing determinator |
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| Publication Number | Publication Date |
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| CN204649708U true CN204649708U (en) | 2015-09-16 |
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| CN201520160484.6U Expired - Fee Related CN204649708U (en) | 2015-03-20 | 2015-03-20 | A kind of activated charcoal formaldehyde absorbing determinator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727807A (en) * | 2017-11-23 | 2018-02-23 | 天津商业大学 | A kind of novel methylene generator |
| CN110794010A (en) * | 2019-12-06 | 2020-02-14 | 广东海洋大学 | Formaldehyde adsorption rate detection test device |
| CN112479845A (en) * | 2020-11-09 | 2021-03-12 | 潍坊惠丰化工有限公司 | High-concentration formaldehyde production device and production process |
-
2015
- 2015-03-20 CN CN201520160484.6U patent/CN204649708U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727807A (en) * | 2017-11-23 | 2018-02-23 | 天津商业大学 | A kind of novel methylene generator |
| CN110794010A (en) * | 2019-12-06 | 2020-02-14 | 广东海洋大学 | Formaldehyde adsorption rate detection test device |
| CN110794010B (en) * | 2019-12-06 | 2023-08-29 | 广东海洋大学 | Formaldehyde adsorption rate detects test device |
| CN112479845A (en) * | 2020-11-09 | 2021-03-12 | 潍坊惠丰化工有限公司 | High-concentration formaldehyde production device and production process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20150916 Termination date: 20210320 |