CN208537495U - A kind of low concentration formaldehyde gas generating device - Google Patents
A kind of low concentration formaldehyde gas generating device Download PDFInfo
- Publication number
- CN208537495U CN208537495U CN201821001281.2U CN201821001281U CN208537495U CN 208537495 U CN208537495 U CN 208537495U CN 201821001281 U CN201821001281 U CN 201821001281U CN 208537495 U CN208537495 U CN 208537495U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- inlet pipe
- bottle stopper
- generating device
- gas generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 241001411320 Eriogonum inflatum Species 0.000 claims abstract description 21
- 239000011490 mineral wool Substances 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of low concentration formaldehyde gas generating device, including body, bottle stopper, air inlet pipe, escape pipe and mineral wool；Body and bottle stopper airtight connection, air inlet pipe and escape pipe are protruded into body by bottle stopper, and air inlet pipe outlet end expands and is provided with several apertures as bubble formation mouth；The part of air inlet pipe and escape pipe outside bottle is equipped with gas buffer ball.The device structure is simple, stability is strong, is a kind of reliable light concentration gas generating device.
Description
Technical field
The utility model relates to a kind of low concentration formaldehyde gas generating devices, belong to chemical apparatuses field.
Background technique
Formaldehyde is one of indoor widest air pollutants, has caused serious environmental sanitation problem.The existing room in China
Interior air quality standard regulation Formaldehyde Concentration of Indoor Air limit value is 0.1mg/m3.Carrying out indoor air pollutants-formaldehyde
In the work of analysis, it is often necessary to prepare the formaldehyde standard gas of low concentration, the quantitative criterion for such as drawing some analysis methods is bent
Line determines the range of calibration analysis instrument, evaluates the efficiency etc. of the method for sampling.
The formaldehyde gas concentration that conventional chemical reaction generates is generally higher, and concentration is unstable, with the existing interior in China
Formaldehyde quality standard regulation difference is larger, it is impossible to be used in most of except verification experiments such as formaldehyde equipment, formaldehyde analyses.
Most of supply equipments that a continuous and stable low concentration formaldehyde gas is required except Formaldehyde Test, at present state
Interior using comparative maturity is diffusion denuder method using metaformaldehyde as raw material, also there is the high-purity fluid of a small number of external producers' productions recently
The commodity for changing formaldehyde osmos tube ask city, but higher cost, complicated for operation.
Utility model content
The utility model provides a kind of low concentration formaldehyde gas generating device, and preparation is except certain dense required for Formaldehyde Test
The continuous and stable formaldehyde gas for spending range, used later through chemical determination concentration value, can satisfy most of medium and small reality
Test room requirement.
A kind of low concentration formaldehyde gas generating device, including body, bottle stopper, air inlet pipe, escape pipe and mineral wool；Body with
Bottle stopper airtight connection, air inlet pipe and escape pipe are protruded into body by bottle stopper, and air inlet pipe outlet end expands and is provided with several apertures
As bubble formation mouth, mineral wool is filled in body；The part of air inlet pipe and escape pipe outside bottle is equipped with gas buffer ball.
Preferably, bottle stopper is hollow structure.
Preferably, air inlet pipe, escape pipe and bottle stopper are integrally formed.
The course of work: in use, pouring into formalin in bottle, the bubble formation mouth of air inlet pipe outlet end is placed in liquid level
Hereinafter, escape pipe input end is placed in liquid level or more, it is preferably located at bottle stopper；It is pumped into air from air inlet pipe using air pump,
Air generates a large amount of bubbles by bubble formation mouth, drives the formaldehyde molecule in formalin to become gas during bubble floating
The formaldehyde gas of body, generation is discharged from escape pipe.
The ppm value for the formaldehyde gas that discharge can be calculated according to the temperature and densimeter of formalin uses 1% through testing
Formalin produce 1mg/m3(formaldehyde gas under the concentration is more than the 10 of national standard concentration to the formaldehyde gas of left and right
Times, be more satisfactory test gas), and can formaldehyde gas according to actual needs concentration adjust formalin concentration,
Temperature and the air capacity being pumped into.
The utility model has the beneficial effects that
1, bottle stopper and air inlet pipe, escape pipe are integrally formed, and airtightness is more preferable；
2, mineral wool has many advantages, such as that forming, bulk density are small, keep the temperature insulation, is corrosion-resistant, and chemical property is similar to
Simple glass instrument will not impact reagent chemical property；The combination of mineral wool and bubble formation mouth makes air blast bottle
Micro-bubble can be dispersed into behind to generate the stable gas containing formaldehyde；Bubble is by open-textured mineral wool in formaldehyde
It holds time in solution more long, the stable formaldehyde gas of low concentration may finally be discharged；
3, equipment requires low, common inflator pump and air that can meet test requirements document gas property；
4, the part of air inlet pipe and escape pipe outside bottle is designed with gas buffer ball, makes gas is more stable being filled with and arranging
Out, the security performance of equipment can be improved；
5, the equipment belongs to the scope of simple glass chemistry, has stronger stability and usability, does not need to provide
Special power-equipment；
6, easy to operate, it is cheap using reagent, greatly reduce experimental cost.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is air inlet pipe outlet end schematic diagram；
Wherein: 1- air inlet pipe, 2- gas buffer ball, 3- escape pipe, 4- bottle stopper, 5- formalin, 6- mineral wool, 7- bubble
Generate mouth, 8- body.
Specific embodiment
The utility model is described in further detail With reference to embodiment.
Embodiment 1
A kind of low concentration formaldehyde gas generating device, including body 8, bottle stopper 4, air inlet pipe 1, escape pipe 3 and mineral wool 6；
Body 8 and 4 airtight connection of bottle stopper, air inlet pipe 1 and escape pipe 3 are protruded into body 8 by bottle stopper 4, and 1 outlet end of air inlet pipe is expanded simultaneously
Several apertures are provided with as bubble formation mouth 7, are filled with mineral wool 6 in body 8；Air inlet pipe 1 and part of the escape pipe 3 outside bottle are equal
Equipped with gas buffer ball 2.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that: bottle stopper 4 is hollow structure.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, the difference is that: air inlet pipe 1, escape pipe 3 and bottle stopper 4 are integrated into
Type.
Claims (3)
1. a kind of low concentration formaldehyde gas generating device, including body (8), bottle stopper (4), air inlet pipe (1), escape pipe (3) and glass
Glass cotton (6)；Body (8) and bottle stopper (4) airtight connection, air inlet pipe (1) and escape pipe (3) pass through bottle stopper (4) and protrude into body (8)
Interior, air inlet pipe (1) outlet end expands and is provided with several apertures as bubble formation mouth (7), and body (8) is interior to be filled with mineral wool (6)；
Air inlet pipe (1) and the part of escape pipe (3) outside bottle are equipped with gas buffer ball (2).
2. low concentration formaldehyde gas generating device according to claim 1, which is characterized in that bottle stopper (4) is hollow structure.
3. low concentration formaldehyde gas generating device according to claim 1 or 2, which is characterized in that air inlet pipe (1), outlet
Pipe (3) is integrally formed with bottle stopper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001281.2U CN208537495U (en) | 2018-06-27 | 2018-06-27 | A kind of low concentration formaldehyde gas generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001281.2U CN208537495U (en) | 2018-06-27 | 2018-06-27 | A kind of low concentration formaldehyde gas generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537495U true CN208537495U (en) | 2019-02-22 |
Family
ID=65379349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821001281.2U Expired - Fee Related CN208537495U (en) | 2018-06-27 | 2018-06-27 | A kind of low concentration formaldehyde gas generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208537495U (en) |
-
2018
- 2018-06-27 CN CN201821001281.2U patent/CN208537495U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU724082A3 (en) | Foaming device for delivering liquid containing solid particles | |
| CN109550418B (en) | Spiral-flow type microbubble generator and gas-liquid reactor | |
| DK1998878T3 (en) | Impregnator | |
| RU2011112648A (en) | PREPARATIVE FORMS BASED ON ANION-STABILIZED AQUEOUS POLYMER DISPERSIONS | |
| CN208537495U (en) | A kind of low concentration formaldehyde gas generating device | |
| CN201600357U (en) | Foam concrete foamer foaming experimental apparatus | |
| BR0101443A (en) | Installation of a gas transfer in a liquid | |
| CN112642310A (en) | Microbubble generation device, microbubble generation control method and device | |
| CN204911266U (en) | Normal atmospheric temperature is in liquid gaseous reference material down and takes place system | |
| CN206132751U (en) | Reduce device of high -salt -content wastewater chemical oxygen demand evaluated error | |
| CN106442911B (en) | A kind of device reducing high slat-containing wastewater COD determination error | |
| Mikuž et al. | Experimental observation of Taylor bubble disintegration in turbulent flow | |
| CN207375811U (en) | A kind of experimental provision for O3 catalytic oxidation treated sewage | |
| CN207067098U (en) | The pressurization evaluating apparatus of foam discharging agent performance | |
| CN209511214U (en) | A kind of dissolved air water faucet | |
| CN209378518U (en) | Defoaming system before a kind of gypsum slurries density measurement | |
| Bauer et al. | Mass transfer characteristics of Venturi liquid-gas contactor | |
| CN205047227U (en) | Laboratory is with foaming device | |
| CN100371052C (en) | Gas-liquid separator | |
| US20110110181A1 (en) | Method and apparatus for mixing and/or blending fluids | |
| CN109621495A (en) | Defoaming system before a kind of gypsum slurries density measurement | |
| CN206508941U (en) | Analytical instrument gaseous mixture air distributing device | |
| CN219495862U (en) | Pretreatment device for testing granularity of liquid | |
| CN109342152A (en) | Ultrasonic vacuum pumps defoaming system before a kind of gypsum slurries density measurement | |
| Stegeman et al. | Interfacial area and gas holdup in an agitated gas-liquid reactor under pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190222 Termination date: 20190627 |