CN205898759U - Formaldehyde and volatile organic compounds detecting system of software furniture and material - Google Patents
Formaldehyde and volatile organic compounds detecting system of software furniture and material Download PDFInfo
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- CN205898759U CN205898759U CN201620683047.7U CN201620683047U CN205898759U CN 205898759 U CN205898759 U CN 205898759U CN 201620683047 U CN201620683047 U CN 201620683047U CN 205898759 U CN205898759 U CN 205898759U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a formaldehyde and volatile organic compounds detecting system of software furniture and material, this detecting system is including the test cover, the test cover is equipped with air inlet and gas sampling mouth, the internal constant temperature heating device that is equipped with of test chamber who forms between the inside inclusive AND testee of intermediate layer of test cover, every air inlet of test cover is connected with clean gaseous feeding device through the intake pipe respectively, clean gaseous feeding device is including the clean gaseous air supply that connects gradually, first ooff valve and gaseous compensation arrangement. The utility model discloses volatility harmful gas's such as the formaldehyde that, VOC the burst size of can be enough volatilizing in the testee when the sleep state to the anthropomorphic dummy body detects, and the disturbing influence that can avoid environmental factor or other uncertain factors to lead to the fact the test result has again guaranteed the stability of test to have improved the measuring accuracy.
Description
Technical field
This utility model is related to volatile organic matter test equipment technical field, more specifically, is to be related to a kind of software
The formaldehyde of furniture and material and volatile organic compound detection system.
Background technology
Good sleep be unable to do without suitable mattress, and all kinds of bedding product are closely bound up with daily life.But
Formaldehyde present in mattress, volatile organic matter (voc) if etc. the concentration of volatile harmful gas exceed certain scope, can
Human body is worked the mischief.Reasonably collect the important step that the volatile harmful gases such as the formaldehyde in mattress, voc are detection techniques
One of.
The Chinese utility model patent file of Application No. 201110363784.0 discloses a kind of mattress volatile gas
Collect detector, it includes casing, and the bottom of control chamber, wherein casing is rectangular box body, and top is bullet, the length of casing
Four sides of cube are provided with breather check valve, and the bullet top of casing is provided with exhaust check valve, and in casing, setting is persevering
Hot plate type constant temperature heating device, in casing cuboid be provided centrally with temperature sensor, casing is provided with control interface, lead to
Cross cable to be connected with control chamber.The structure of this detector is simple, easy and simple to handle, simulates in people's mattress in sleep state and can wave
The virtual condition of the property sent out gas, but this detector has the following disadvantages:
(1) this detector is tested in common environment, the temperature of surrounding, humidity and composition of air and concentration
Impact can be produced etc. environmental factorss on the precision of test；
(2), when testing, original contaminated air in test box body is not discharged by the test casing of this detector in advance, leads
Cause formaldehyde, the volatile harmful gas such as voc that mattress evaporates to mix with original contaminated air in test box body, have impact on
The precision of test；
(3), when sampling, after the exhaust check valve on the test casing of this detector is opened, the gas in test box body can be arranged
Go out, lead to the pressure in test box body to reduce, now the air in surrounding can pressure differential enter in test box body, have impact on
The precision of test.
Utility model content
The purpose of this utility model is to overcome drawbacks described above of the prior art, provide one kind can either to simulation human body
The burst size of the volatile harmful gases such as the formaldehyde that volatilizes in the testee in sleep state, voc is detected, can again
Avoid environmental factorss or interference effect that other uncertain factors cause to test result is thus improve the software man of measuring accuracy
The formaldehyde of tool and material and volatile organic compound detection system.
For achieving the above object, the technical scheme that this utility model provides is as follows: the formaldehyde of a kind of soft furniture and material
And volatile organic compound detection system, including the test cover for being located on testee, the periphery of described test cover is provided with
At least one air inlet, described test cover is provided with gas sampling mouth, the internal or described test cover of interlayer of described test cover with
Be provided with constant temperature heating device in the test chamber body being formed between testee, each air inlet of described test cover pass through respectively into
Trachea is connected with clean gas feedway, and described clean gas feedway includes clean gas source of the gas, first switch valve
With gas compensation device, the outlet side of described clean gas source of the gas is connected with the inlet end of gas compensation device, and described first
Switch valve is connected between the outlet side of clean gas source of the gas and the inlet end of gas compensation device, described gas compensation device
Outlet side connects air inlet pipe.
As preferred, the QI invigorating bag that described gas compensation device is provided for storage and discharges clean gas.
As preferred, this system also includes one for providing the constant temperature and humidity clean cabin of standard test environment, described survey
Examination cover is installed in the inside of described constant temperature and humidity clean cabin.
As preferred, at described gas sampling mouth, be provided with the 3rd switch valve, the outlet side of described clean gas source of the gas with
It is additionally provided with flow calorimeter between the inlet end of gas compensation device, also set between the outlet side of described gas compensation device and air inlet pipe
There is second switch valve, the inwall of described test cover is provided with anti-absorbent coating.
As preferred, described constant temperature heating device is set to by heat-conducting mode, the gas in test cover uniformly be heated
Heat conduction coil pipe or heater, described heat conduction coil pipe or heater be evenly distributed in the inside interlayer of test cover, described heat conduction
The inside of coil pipe is provided with heat transfer medium, and the inlet of described heat conduction coil pipe and liquid outlet pass through pipeline and temperature control heat pump assembly respectively
It is connected, thus forming heat pump constant temperature circulating system.
As preferred, described heat conduction coil pipe is set to serpentine coil or shell and tube coil pipe.
As preferred, described constant temperature heating device is provided for simulating the thermostat of human body, and described thermostat is placed
In the test chamber body of test cover, in described constant temperature body, thermostat is installed, inside described thermostat, is provided with temperature control heating
Body or the thermostatic medium controlling constant temperature temperature by media flow；It is anti-that described thermostat is that solid structure and its outer surface are provided with
Absorbent coating or outside cladding politef/fluoride, or described thermostat is in politef/fluoride bag and its
Portion is equipped with liquid object.
As preferred, described test cover is stainless steel cage, and each corner of described test cover is circular arc or hypotenuse knot
Structure.
As preferred, described test cover is provided with mobile lifting device.
As preferred, the formaldehyde of described soft furniture and material and volatile organic compound detection system can uprightly be placed
Or placement of standing upside down, the below or above of described test cover is provided with the mattress support for placing testee, when test cover is upright
During placement, described gas sampling mouth is located at the top of test cover, and when test cover stands upside down and places, described gas sampling mouth is located to be surveyed
The bottom of examination cover.
Compared with prior art, the beneficial effects of the utility model are:
1st, this utility model before testing can control first switch valve beat opening/closing, and by clean gas source of the gas with
Gas compensation device is passed through the clean gas of standard toward in test cover, carries out gas washing and gas displacement to test cover, it is to avoid environment
The impact to test result of factor or other uncertain factors, improves measuring accuracy.
2nd, gas compensation device of the present utility model in sampling process, clean gas can be filled with test cover and realize
Gas volume compensate, to prevent the dusty gass outside test cover from entering test cover because of pressure differential, it is to avoid environmental factorss or other
The impact to test result for the uncertain factor, improves measuring accuracy.
3rd, this utility model provides the constant temperature and humidity clean cabin of a controllable temperature, relative humidity and background concn, surveys
Examination cover is installed in the inside of constant temperature and humidity clean cabin, is that mattress test provides a stable standard test environment, it is to avoid ring
The impact to test result of border factor or other uncertain factors, improves measuring accuracy.
4th, this utility model can either be to the formaldehyde volatilizing in simulation human body testee in sleep state, voc etc.
The burst size of volatile harmful gas is detected, and it can be avoided that environmental factorss or other uncertain factors are made to test result
The interference effect becoming, it is ensured that the stability of test, improves measuring accuracy.
Brief description
Fig. 1 is soft furniture described in the utility model and the formaldehyde of material and the structure of volatile organic compound detection system
Schematic diagram；
Fig. 2 is soft furniture described in the utility model and the formaldehyde of material and the local of volatile organic compound detection system
Structural side view；
Fig. 3 is the another of the formaldehyde of soft furniture described in the utility model and material and volatile organic compound detection system
Partial structurtes side view；
When Fig. 4 is the formaldehyde of soft furniture described in the utility model and material and volatile organic compound detection system stands upside down
Partial structurtes side view.
With reference to the accompanying drawings and examples the formaldehyde and volatility of soft furniture described in the utility model and material is had
Machine quality testing examining system is described further.
Specific embodiment
The following is the formaldehyde of soft furniture described in the utility model and material and volatile organic compound detection system
Good example, does not therefore limit protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, in figure shows that a kind of soft furniture and the formaldehyde of material and volatile organic matter detection are
System, carries out the test cover 1 of gas test, is used for providing standard testing including for being located on testee (such as: mattress 20)
The constant temperature and humidity clean cabin 3 of environment and clean gas feedway, test cover 1 is installed in the inside of constant temperature and humidity clean cabin 3, surveys
It is provided with constant temperature heating device, test cover in the test chamber body being formed between the interlayer inside of examination cover 1 or test cover 1 and testee
1 periphery is provided with least one air inlet (such as: 4), and test cover 1 is provided with gas sampling mouth 2, each air inlet of test cover 1
Mouth is connected with clean gas feedway by air inlet pipe 4 respectively.
Wherein, test cover 1 is made up of metal material, and when being embodied as, test cover 1 is preferably arranged to stainless steel cage, test
Each corner of cover 1 is circular arc or hypotenuse structure, its surrounding one-way air inlet, and the size of test cover 1 can be preferably arranged to: long
For 1m, a width of 1m, a height of 0.3m.Certainly, according to actual needs, the size of test cover 1 can also arbitrarily change.When test cover 1
Be located at testee designated area when, between the inside of test cover 1 and testee formed one test cavity.
Additionally, the inwall of test cover 1 is provided with anti-absorbent coating, it is prevented from the inwall absorption volatility of test cover 1 has
Machine thing, improves measuring accuracy.
As preferred embodiment, the constant temperature heating device of test cover 1 is disposed through heat-conducting mode to test
Gas in the cover 1 uniformly heat conduction coil pipe 11 of heating or heater, heat conduction coil pipe 11 or heater are evenly distributed on test cover 1
In internal interlayer.As depicted in figs. 1 and 2, the inside of heat conduction coil pipe 11 is provided with heat transfer medium (such as: water, oil etc.), heat conduction coil pipe 11
Inlet be connected with temperature control heat pump assembly 12 by pipeline 16 respectively with liquid outlet, thus forming heat pump constant temperature circulating system
System.In the present embodiment, heat conduction coil pipe 11 is preferably arranged to serpentine coil or shell and tube coil pipe.This test cover 1 is using heat transfer
Medium+coil pipe heat conduction technology uniformly heats to the gas of (i.e. in test chamber body) in test cover 1, and control accuracy is higher, more stable,
Uniformity is more preferable.Additionally, test cover 1 is controlled to the temperature (such as: 36 DEG C ± 1 DEG C) in test cover by heat pump water-cycling mode
System, can truly simulate body temperature.
As another preferred embodiment, as shown in figure 3, constant temperature heating device is it can also be provided that be used for simulating people
The thermostat 17 of body, thermostat 17 is placed in the test chamber body of test cover 1, is provided with thermostat, constant temperature in thermostat 17
The thermostatic medium being provided with temperature control calandria inside device or controlling constant temperature temperature by media flow.Specifically, thermostat 17
Anti- absorbent coating or outside cladding politef/fluoride can be provided with for solid structure and its outer surface, or thermostat
17 can also for politef/fluoride bag and its inside equipped with liquid object.Wherein, anti-absorbent coating and politef/
Fluoride is all prevented from thermostat 17 absorption volatile organic matter, improves measuring accuracy.
The inside of constant temperature and humidity clean cabin 3 can be provided with the equipment such as constant temperature and humidity unit and defecator, can control temperature
Degree, relative humidity and background concn, are that mattress test provides a stable standard test environment, it is to avoid outside environmental elements
Or the impact to test result for other uncertain factors, it is ensured that measuring stability, improves measuring accuracy.
As shown in figure 1, this clean gas feedway include clean gas source of the gas 5, gas compensation device 6, flow calorimeter 7,
First switch valve 8 and second switch valve 9, clean gas source of the gas 5 is connected with the inlet end of gas compensation device 6 by appendix 15
Connect, flow calorimeter 7 and first switch valve 8 are connected to the outlet side of clean gas source of the gas 5 and the inlet end of gas compensation device 6 in turn
Between, second switch valve 9 is connected between the outlet side of gas compensation device 6 and air inlet pipe 4.In the present embodiment, gas is mended
Repay device 6 and be preferably arranged to the QI invigorating bag for storing and discharging clean gas.It is of course also possible to be held using other gases
Device, non-the present embodiment is limited.Wherein, the inflation venting orientation of clean gas feedway is quantitative, decreases operating error.
It is provided with the 3rd switch valve 10 at gas sampling mouth 2, gas sampling after opening the 3rd switch valve 10, can be carried out.
When being embodied as, as shown in Figure 2 and Figure 4, the formaldehyde of this soft furniture and material and volatile organic matter detection system
System can uprightly be placed or stand upside down placement, and the below or above of test cover 1 is provided with for placing or the mattress of fixing mattress 20 props up
Frame 13.When test cover 1 is uprightly placed, gas sampling mouth 2 is located at the top of test cover 1；When test cover 1 stands upside down and places, gas
Sampler body mouth 2 is located at the bottom of test cover 1.
The movement of test cover 1 and lifting for convenience, when test cover 1 is uprightly placed, the top of test cover 1 is provided with installing
Mobile lifting device 14 in constant temperature and humidity clean cabin 3 inner tip；When test cover 1 stands upside down and places, the bottom of test cover 1 sets
There is the mobile lifting device 14 being installed in constant temperature and humidity clean cabin 3 inner bottom.Certainly, mobile lifting device 14 can also be installed
Go up elsewhere.Wherein, mobile lifting device 14 could be arranged to manual type mobile lifting device or electrodynamic movable liter
Falling unit.
A kind of utilization soft furniture and the formaldehyde of material and the method for testing of volatile organic compound detection system, including following
Step:
(1) constant temperature and humidity clean cabin 3 is allowed to provide the standard test environment of a constant temperature, constant humidity and default cleanliness factor, and will
Test cover 1 is located in the designated area of testee (such as: mattress 20)；
(2) close first switch valve 8 and second switch valve 9, evacuated in gas compensation device 6 by vacuum extractor
Gas；
(3) open clean gas source of the gas 5 and first switch valve 8, and control insufflation gas to compensate by flow calorimeter 7 constant speed
Clean gas in device 6；
(4) open second switch valve 9 and the 3rd switch valve 10, be filled with clean gas, cleaning displacement test to test cover 1
Contaminated air in cover 1；
(5), when gas washing completes, close second switch valve 9 and the 3rd switch valve 10, and make to be full of in gas compensation device 6
Clean gas；
(6) close first switch valve 8 and clean gas source of the gas 5, and make the internal temperature control of test cover 1 at 36 DEG C ± 1
DEG C, and make test cover 1 at the appointed time keep in (such as: 8 hours) static until sampling；
(7) when gas sampling mouth 2 is sampled, open the 3rd switch valve 10 and sampled, and open second switch simultaneously
Valve 9, enables the clean gas in gas compensation device 6 in sampling process to enter in test cover 1 and realizes gas volume compensation, with
Prevent the dusty gass outside test cover 1 from entering test cover 1.
It is passed through the clean gas of standard before testing toward in test cover 1, can discharge original in the test chamber body of test cover 1
Dusty gass, gas washing and gas displacement can be carried out to test cover 1, improve measuring accuracy.And in sampling process, gas
Clean gas in body compensation device 6 quantitatively can be filled in test cover 1 and realize gas volume compensation it is therefore prevented that surveying with constant speed
Dusty gass outside examination cover 1 enter test cover 1 because of pressure differential, further increase measuring accuracy.
In sum, this utility model can either be to the first volatilizing in simulation human body testee in sleep state
The burst size of the volatile harmful gas such as aldehyde, voc is detected, and it can be avoided that environmental factorss or other uncertain factors are to survey
The interference effect that test result causes, it is ensured that the stability of test, improves measuring accuracy.
Above-described embodiment be this utility model preferably embodiment, but embodiment of the present utility model be not subject to above-mentioned
The restriction of embodiment, other any without departing from the change made under spirit of the present utility model and principle, modify, replace
Generation, combination, simplification, all should be equivalent substitute mode, are included within protection domain of the present utility model.
Claims (10)
1. the formaldehyde of a kind of soft furniture and material and volatile organic compound detection system, including for being located at testee
Test cover (1), the periphery of described test cover (1) is provided with least one air inlet, and described test cover (1) is provided with gas sampling
Set in the test chamber body that mouth (2), the interlayer inside of described test cover (1) or described test cover (1) are formed and testee between
There is constant temperature heating device it is characterised in that each air inlet of described test cover (1) passes through air inlet pipe (4) and clean gas respectively
Body feeding is connected, and described clean gas feedway includes clean gas source of the gas (5), first switch valve (8) and gas
Compensation device (6), the outlet side of described clean gas source of the gas (5) is connected with the inlet end of gas compensation device (6), and described
One switch valve (8) is connected between the outlet side of clean gas source of the gas (5) and the inlet end of gas compensation device (6), described gas
The outlet side of body compensation device (6) connects air inlet pipe (4).
2. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described gas compensation device (6) is provided for storing and discharge the QI invigorating bag of clean gas.
3. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In this system also includes one for providing the constant temperature and humidity clean cabin (3) of standard test environment, and described test cover (1) is installed in
The inside of described constant temperature and humidity clean cabin (3).
4. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described gas sampling mouth (2) place is provided with the 3rd switch valve (10), and the outlet side of described clean gas source of the gas (5) is mended with gas
Be additionally provided with flow calorimeter (7) between the inlet end repaying device (6), the outlet side of described gas compensation device (6) and air inlet pipe (4) it
Between be additionally provided with second switch valve (9), the inwall of described test cover (1) is provided with anti-absorbent coating.
5. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described constant temperature heating device is set to the heat conduction coil pipe gas in test cover (1) uniformly being heated by heat-conducting mode
(11) or heater, described heat conduction coil pipe (11) or heater are evenly distributed in the inside interlayer of test cover (1), described heat conduction
The inside of coil pipe (11) is provided with heat transfer medium, the inlet of described heat conduction coil pipe (11) and liquid outlet pass through respectively pipeline (16) with
Temperature control heat pump assembly (12) is connected, thus forming heat pump constant temperature circulating system.
6. the formaldehyde of soft furniture according to claim 5 and material and volatile organic compound detection system, its feature exists
In described heat conduction coil pipe (11) is set to serpentine coil or shell and tube coil pipe.
7. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described constant temperature heating device is provided for simulating the thermostat (17) of human body, and described thermostat (17) is placed on test cover
(1), in test chamber body, in described thermostat (17), thermostat is installed, inside described thermostat, is provided with temperature control calandria
Or control the thermostatic medium of constant temperature temperature by media flow；Described thermostat (17) is solid structure and its outer surface is provided with
Anti- absorbent coating or outside coat politef/fluoride, or described thermostat (17) is politef/fluoride bag
And equipped with liquid object inside it.
8. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described test cover (1) is stainless steel cage, and each corner of described test cover (1) is circular arc or hypotenuse structure.
9. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
In described test cover (1) is provided with mobile lifting device (14).
10. the formaldehyde of soft furniture according to claim 1 and material and volatile organic compound detection system, its feature exists
Can uprightly place or stand upside down placement in, the formaldehyde of described soft furniture and material and volatile organic compound detection system, described
The below or above of test cover (1) is provided with the mattress support (13) for placing testee, places when test cover (1) is upright
When, described gas sampling mouth (2) is located at the top of test cover (1), when test cover (1) stands upside down and places, described gas sampling mouth
(2) it is located at the bottom of test cover (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683047.7U CN205898759U (en) | 2016-06-30 | 2016-06-30 | Formaldehyde and volatile organic compounds detecting system of software furniture and material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683047.7U CN205898759U (en) | 2016-06-30 | 2016-06-30 | Formaldehyde and volatile organic compounds detecting system of software furniture and material |
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| CN205898759U true CN205898759U (en) | 2017-01-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974068A (en) * | 2016-06-30 | 2016-09-28 | 东莞市升微机电设备科技有限公司 | Detection system for formaldehyde and volatile organic compound (VOC) in upholstered furniture and material |
| CN106814163A (en) * | 2017-01-22 | 2017-06-09 | 沈阳紫微机电设备有限公司 | Sack method tests formaldehyde, the device and method of VOC in furniture and decorating and renovating material |
| CN109808255A (en) * | 2019-01-25 | 2019-05-28 | 湖南华湘智能运控科技有限公司 | A kind of shell of mattress volatile gas collection detector |
| CN110286171A (en) * | 2019-07-09 | 2019-09-27 | 上海市质量监督检验技术研究院 | VOCs spot sampling system and rapid detection method in a kind of soft furniture |
| CN110658331A (en) * | 2019-11-15 | 2020-01-07 | 永康图仁印刷科技有限公司 | Printing ink volatility check out test set for printing |
| CN113655180A (en) * | 2021-08-23 | 2021-11-16 | 安徽省汉博科技有限公司 | High-precision furniture formaldehyde detection device and method |
-
2016
- 2016-06-30 CN CN201620683047.7U patent/CN205898759U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974068A (en) * | 2016-06-30 | 2016-09-28 | 东莞市升微机电设备科技有限公司 | Detection system for formaldehyde and volatile organic compound (VOC) in upholstered furniture and material |
| CN105974068B (en) * | 2016-06-30 | 2019-03-19 | 东莞市升微机电设备科技有限公司 | The formaldehyde and volatile organic compound detection system of a kind of soft furniture and material |
| CN106814163A (en) * | 2017-01-22 | 2017-06-09 | 沈阳紫微机电设备有限公司 | Sack method tests formaldehyde, the device and method of VOC in furniture and decorating and renovating material |
| CN106814163B (en) * | 2017-01-22 | 2020-01-10 | 沈阳紫微恒检测设备有限公司 | Device and method for testing formaldehyde and VOC (volatile organic compounds) in furniture and decoration materials by bag method |
| CN109808255A (en) * | 2019-01-25 | 2019-05-28 | 湖南华湘智能运控科技有限公司 | A kind of shell of mattress volatile gas collection detector |
| CN110286171A (en) * | 2019-07-09 | 2019-09-27 | 上海市质量监督检验技术研究院 | VOCs spot sampling system and rapid detection method in a kind of soft furniture |
| CN110658331A (en) * | 2019-11-15 | 2020-01-07 | 永康图仁印刷科技有限公司 | Printing ink volatility check out test set for printing |
| CN113655180A (en) * | 2021-08-23 | 2021-11-16 | 安徽省汉博科技有限公司 | High-precision furniture formaldehyde detection device and method |
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