CN109459537A - A kind of formaldehyde examination device - Google Patents
A kind of formaldehyde examination device Download PDFInfo
- Publication number
- CN109459537A CN109459537A CN201811633312.0A CN201811633312A CN109459537A CN 109459537 A CN109459537 A CN 109459537A CN 201811633312 A CN201811633312 A CN 201811633312A CN 109459537 A CN109459537 A CN 109459537A
- Authority
- CN
- China
- Prior art keywords
- formaldehyde
- piston
- push rod
- shell
- pistons
- 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.)
- Pending
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000012360 testing method Methods 0.000 claims abstract description 15
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 1
- 235000019256 formaldehyde Nutrition 0.000 abstract description 37
- 238000001514 detection method Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 10
- 229930040373 Paraformaldehyde Natural products 0.000 abstract description 2
- 229920002866 paraformaldehyde Polymers 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- CUHVTYCUTYWQOR-UHFFFAOYSA-N formaldehyde Chemical compound O=C.O=C CUHVTYCUTYWQOR-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to formaldehyde testing equipment fields, more particularly to a kind of formaldehyde examination device, including shell, piston, push rod, formaldehyde sensor, microcontroller and display screen, there are two the piston is set in parallel, two pistons and shell define Standard Gases body cavity jointly, the configuration of the present invention is simple, design is reasonable, push rod is pushed to be located at formaldehyde sensor between two pistons first before being detected, it is returned to zero using the endoceliac air PARA FORMALDEHYDE PRILLS(91,95) detection device of Standard Gases, it pulls push rod to be connected to formaldehyde sensor with test side later to detect indoor formaldehyde, compared to traditional methylene oxide detecting instrument, the present invention is easy to use, zeroing is accurate, detection accuracy is high.
Description
Technical field
The present invention relates to formaldehyde testing equipment field more particularly to a kind of formaldehyde examination devices.
Background technique
Methylene oxide detecting instrument is a kind of instrument for detecting formaldehyde.The scene of realizing fast implements semidefinite to formaldehyde in indoor air
Succinct, small in size, the easy to carry use of amount, characteristic structure and intuitive.It can be suitable for room, interior, residential area, public extensively
The in situ quantitation qualitative detection of formaldehyde in place, life area and factories and miness workshop air.
Methylene oxide detecting instrument currently on the market before each is used, needs to return to zero in outdoor environment, then sharp
With the detector test indoor formaldehyde after zeroing, detection efficiency is low, and accuracy is poor.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of without in outdoor
The formaldehyde examination device of zeroing.
The present invention is to be achieved by the following technical programs:
A kind of formaldehyde examination device characterized by comprising both ends open shell in a tubular form, the work being set in the housing
Plug, with piston it is affixed for push piston push rod, be embedded in inner walls for detect content of formaldehyde formaldehyde sensor, with
The microcontroller that formaldehyde sensor is electrically connected and the display screen being fixed in outside shell, the shell are hand close to one end of push rod
End is held, the other end is test side,
There are two the piston is set in parallel, affixed by connecting rod between two pistons, two pistons surround jointly with shell
Standard Gases body cavitys, calibrating gas is intracavitary filled with the air without formaldehyde,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen and microcontroller are electrically connected
For receiving and showing content of formaldehyde numerical value.
Preferably, the test side opening is equipped with limiting section.
Preferably, the test side opening is connected with Air Filter.
The beneficial effects of the present invention are:
The configuration of the present invention is simple, design rationally, push push rod that formaldehyde sensor is made to be located at two work first before being detected
Between plug, is returned to zero using the endoceliac air PARA FORMALDEHYDE PRILLS(91,95) detection device of Standard Gases, pull push rod to make formaldehyde sensor and inspection later
It surveys end connection to detect indoor formaldehyde, compared to traditional methylene oxide detecting instrument, the present invention is easy to use, and zeroing is accurate, inspection
It is high to survey precision.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
In figure: 1. shells, 2. pistons, 3. push rods, 4. formaldehyde sensors, 5. microcontrollers, 6. display screens, 7. connecting rods, 8.
Standard Gases body cavity, 9. limiting sections, 10. Air Filters.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and most
The present invention is described in further detail for good embodiment.
As shown, the present invention includes: both ends open shell 1 in a tubular form, the piston 2 that is set in the housing, solid with piston
It connects the push rod 3 for pushing piston, be embedded in inner walls for detecting the formaldehyde sensor 4 of content of formaldehyde, sensing with formaldehyde
The microcontroller 5 that device is electrically connected and the display screen 6 being fixed in outside shell, the shell are handheld terminal close to one end of push rod,
The other end is test side,
There are two the piston is set in parallel, affixed by connecting rod 7 between two pistons, two pistons surround jointly with shell
Standard Gases body cavity 8, calibrating gas is intracavitary filled with the air without formaldehyde, and user can pull push rod in formaldehydeless air
Piston is pulled out from shell and is again pushed into, so that the air in Standard Gases body cavity is replaced, to ensure the precision to return to zero,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen and microcontroller are electrically connected
For receiving and showing content of formaldehyde numerical value.
When in use, promotion push rod first makes formaldehyde sensor be located at two pistons to formaldehyde examination device in the present embodiment
Between, it is returned to zero using the air for being free of formaldehyde in Standard Gases body cavity to detection device, observes the formaldehyde numerical value shown in display screen,
After numerical stability i.e. zeroing finish, then pull piston be connected to formaldehyde sensor with test side, thus to indoor formaldehyde into
Row detection, the concentration of formaldehyde in current environment can be shown by display screen, pushes push rod to pass formaldehyde again after detection
Sensor is between two pistons, can be returned to zero again to detection device, detection can be directly carried out when detecting next time and no longer needed to
Secondary zeroing.
Preferably, the test side opening is equipped with limiting section 9, and limiting section is for resisting piston, when piston and limiting section
When offseting, formaldehyde sensor is located between two pistons, convenient for storage and transport.
Preferably, the test side opening is connected with Air Filter 10, prevents the dust in air from entering in test side, shadow
Ring detection accuracy.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of formaldehyde examination device characterized by comprising both ends open shell in a tubular form, the piston being set in the housing,
With the affixed push rod for pushing piston of piston, be embedded in inner walls for detecting the formaldehyde sensor and first of content of formaldehyde
The microcontroller that aldehyde sensor is electrically connected and the display screen being fixed in outside shell, the shell is hand-held close to one end of push rod
End, the other end is test side,
Affixed by connecting rod between two pistons there are two the piston is set in parallel, two pistons and shell define mark jointly
Quasi- air chamber, calibrating gas is intracavitary to be filled with the air without formaldehyde,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen is used for microcontroller electric connection
It receives and shows content of formaldehyde numerical value.
2. a kind of formaldehyde examination device according to claim 1, which is characterized in that the test side opening is equipped with limit
Portion.
3. a kind of formaldehyde examination device according to claim 1, which is characterized in that the test side opening is connected with anti-
Dirt net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633312.0A CN109459537A (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633312.0A CN109459537A (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109459537A true CN109459537A (en) | 2019-03-12 |
Family
ID=65615657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811633312.0A Pending CN109459537A (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109459537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780813A (en) * | 2020-08-12 | 2020-10-16 | 杭州鸿程科技有限公司 | Prediction type condensation monitoring method and device |
-
2018
- 2018-12-29 CN CN201811633312.0A patent/CN109459537A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780813A (en) * | 2020-08-12 | 2020-10-16 | 杭州鸿程科技有限公司 | Prediction type condensation monitoring method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190312 |