CN106001041A - Novel ventilation cabinet for lab - Google Patents
Novel ventilation cabinet for lab Download PDFInfo
- Publication number
- CN106001041A CN106001041A CN201610409233.6A CN201610409233A CN106001041A CN 106001041 A CN106001041 A CN 106001041A CN 201610409233 A CN201610409233 A CN 201610409233A CN 106001041 A CN106001041 A CN 106001041A
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- China
- Prior art keywords
- control unit
- wind apparatus
- row wind
- air draft
- operating power
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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- Ventilation (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention discloses a novel ventilation cabinet for a lab. The novel ventilation cabinet comprises a cabinet body, a gas concentration detector, exhaust devices and a control unit. The gas concentration detector is arranged in the cabinet body, and is used for detecting the concentration of toxic and harmless gas in the cabinet body. The exhaust devices comprise a first exhaust device, a second exhaust device and a third exhaust device. The control unit obtains the concentration of the toxic and harmless gas in the cabinet body through the gas concentration detector. Three preset concentration values are stored in the control unit, and are C1, C2 and C3. The control unit controls the first exhaust device, the second exhaust device and the third exhaust device to operate dynamically according to the relation between the detection values C of the gas concentration detector and the three preset concentration values. Furthermore, when the control unit adopts the lower-grade exhaust mode, the control unit further judges the interval values of the concentrations to judge whether a higher-grade exhaust mode is adopted or not, so that the rapid exhaust of the toxic and harmless gas in the cabinet is ensured.
Description
Technical field
The present invention relates to laboratory equlpment technical field, particularly relate to a kind of Novel fume hood for laboratories.
Background technology
Ventilated chamber is wide variety of a kind of ventilation installation in current each universities and colleges and R&D institution's laboratory.Ventilate
Cabinet is of a great variety, protection is tight, comprehensively protects both to experiment operator, withstands again all kinds of chemistry acid
Alkali and the corrosion of organic reagent, and do not stain the laboratory sample of inside.Which ensure poisonous, be harmful to, have gas
The smooth discharge of the gas of taste, makes experimental situation reach the safe effect that national regulation specifies.Existing ventilation
Cabinet is fine not to switching and the selection of ventilation grade, and in ventilated chamber, the concentration of toxic and harmful exceedes pre-
If detected value time, often use stronger ventilation speed mode strengthen in ventilated chamber gas circulate speed
Degree, due to fine not to the switching of ventilated chamber ventilation grade and selection, be likely to result in and arrange toxic and harmful
Put drawback the most thoroughly, so will cause the impact of meeting laboratory safety environment, even can affect experiment
The personal safety of operator, therefore, detects in real time to the concentration of the toxic and harmful in ventilated chamber,
And it is particularly necessary to choose corresponding Ventilation Strategies according to detected value.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of Novel fume hood for laboratories.
The Novel fume hood for laboratories that the present invention proposes, including: cabinet, gas concentration detector, air draft
Equipment, control unit；
Gas concentration detector is located at inside cabinet, the concentration of the toxic and harmful in detecting box body；
Exhaust equipment includes first row wind apparatus, second row wind apparatus, the 3rd air exhausting device；Control unit, with
One air exhausting device, second row wind apparatus, the 3rd air exhausting device and gas concentration detector communication connection, control
Unit is by the concentration C of toxic and harmful in gas concentration detector acquisition cabinet and dense according to above-mentioned gas
The detected value C of degree detector dynamically controls first row wind apparatus, second row wind apparatus and the 3rd air exhausting device
Work；
Three air draft patterns it are preset with: the first air draft pattern, the second air draft pattern and the 3rd row in control unit
Wind pattern；When control unit selects the first air draft pattern, first row wind apparatus is started working；Control unit is selected
When selecting the second air draft pattern, first row wind apparatus and second row wind apparatus work simultaneously；Control unit selects the
During three air draft patterns, first row wind apparatus, second row wind apparatus and the 3rd air exhausting device work simultaneously；
Control unit internal memory contains three preset concentration value: C1、C2、C3；If C≤C1, control unit selects the
One air draft pattern；If C1<C≤C2, control unit selects the second air draft pattern；If C2<C≤C3, control unit
Select the 3rd air draft pattern, wherein, C1<C2<C3；
When control unit selects the first air draft pattern, control unit adjusts the operating power of first row wind apparatus and is
P1；When control unit selects the second air draft pattern, the operating power of control unit holding first row wind apparatus is
P1, and to adjust the operating power of second row wind apparatus be P2；When control unit selects the 3rd air draft pattern, control
Unit keeps the operating power of first row wind apparatus to be P1, keep second row wind apparatus operating power be P2、
And the operating power adjusting the 3rd air exhausting device is P3；Wherein, P1<P2<P3；
When control unit selects the first air draft pattern, control unit determines whether poisonous and harmful gas in cabinet
The concentration C of body and C1The magnitude relationship of/2, if C >=C1/ 2, control unit adjusts the work of first row wind apparatus
Power is P2If, C < C1/ 2, control unit adjusts the operating power of first row wind apparatus and remains P1；
When control unit selects the second air draft pattern, control unit determines whether poisonous and harmful gas in cabinet
The concentration C of body and (C1+C2The magnitude relationship of)/2, if C >=(C1+C2)/2, control unit adjusts the
The operating power of one air exhausting device is P2, adjust second row wind apparatus operating power be P3If, C < (C1+C2)
/ 2, the operating power of control unit adjustment first row wind apparatus is P1, the work merit adjusting second row wind apparatus
Rate is P2；
When control unit selects the 3rd air draft pattern, control unit determines whether poisonous and harmful gas in cabinet
The concentration C of body and (C2+C3The magnitude relationship of)/2, if C >=(C2+C3)/2, control unit adjusts first
The operating power of air exhausting device is P3, adjust second row wind apparatus operating power be P3If, C < (C2+C3)
/ 2, it is P that control unit adjusts the operating power of first row wind apparatus1, adjust second row wind apparatus work merit
Rate is P2。
Preferably, also include that alarm, alarm communicate to connect with control unit；If gas concentration detector
Detected value C > C3Time, control unit instruction controls alarm and reports to the police.
Preferably, described alarm is audible-visual annunciator.
Preferably, at first row wind apparatus, second row wind apparatus, the 3rd air exhausting device, it is equipped with defecator,
Defecator is for filtering the impurity in expellant gas.
Preferably, described defecator includes: acid absorbed layer, Alkali absorption layer, activated carbon adsorption layer and dry
Dry layer.
Preferably, also include that temperature sensor and display screen, temperature sensor and display screen are all located in cabinet
Side, temperature sensor and display screen all communicate to connect with control unit；Control unit is obtained by temperature sensor
Take the temperature in cabinet and temperature detection value is sent to display screen shows.
Preferably, described display screen also includes flashing lamp；Control unit internal memory contains preset temperature value, if
The detected value of temperature sensor is more than preset temperature value, and control unit obtains this information and instructs control flashing lamp
Work.
Preferably, also include that timer, timer communicate to connect with control unit；Control unit passes through timing
Device obtains temporal information, and controls the working time of exhaust equipment according to default time parameter and temporal information
And control exhaust equipment closedown.
Preferably, control unit internal memory contains toxic and harmful concentration minima Cmin；If C≤Cmin, control
Unit instruction controls to close after exhaust equipment works on ten minutes.
The present invention is provided with gas concentration detector, exhaust equipment and control unit；Exhaust equipment includes first row
Wind apparatus, second row wind apparatus and the 3rd air exhausting device；Control unit obtains logical by gas concentration detector
The concentration C of the toxic and harmful in wind cabinet, and by detected value C and three preset concentration values C1、C2、C3Enter
Row compares, and control unit dynamically controls exhaust equipment work according to result of the comparison.Preset in control unit
There are the first air draft pattern, the second air draft pattern and the 3rd air draft pattern；If C≤C1, control unit selects first
Air draft pattern, i.e. first row wind apparatus is started working；If C1<C≤C2, control unit selects the second air draft pattern,
I.e. first row wind apparatus and second row wind apparatus works simultaneously；If C2<C≤C3, control unit selects the 3rd air draft
Pattern, i.e. first row wind apparatus, second row wind apparatus and the 3rd air exhausting device work simultaneously；So, can root
It is dynamically selected corresponding air draft pattern according to the change of the concentration of the toxic and harmful in ventilated chamber, not only saves
The about energy, and toxic and harmful discharge can be made more thorough.Further, first row wind apparatus,
Second row wind apparatus, the 3rd air exhausting device have three different operating powers, and control unit detects gas
When the detected value of concentration detector persistently raises, the experiment carried out in showing ventilated chamber creates the most poisonous to be had
Evil gas, now control unit selects higher before the detected value of gas concentration detector reaches preset value premise
The air draft pattern of one-level, strengthens air draft dynamics, makes toxic and harmful discharge more complete.Further,
When control unit selects the first air draft pattern, and C >=C1When/2, control unit adjusts the work of first row wind apparatus
The rate of doing work is P2；When control unit selects the second air draft pattern, and C >=(C1+C2During)/2, control unit
The operating power adjusting first row wind apparatus is P2, adjust second row wind apparatus operating power be P3；Work as control
Unit selection the 3rd air draft pattern processed, and C >=(C2+C3During)/2, control unit adjusts first row wind apparatus
Operating power be P3, adjust second row wind apparatus operating power be P3, it is so designed that, at poisonous and harmful
In the case of gas concentration constantly raises, continue to increase the work merit of first row wind apparatus and second row wind apparatus
Rate, to accelerate the circulation rate of gas in ventilated chamber, makes the discharge of toxic and harmful more quickly and thoroughly,
Ensure that the safety of experimental implementation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Novel fume hood for laboratories；
Fig. 2 is the structural representation of the control unit of a kind of Novel fume hood for laboratories；
Detailed description of the invention
As shown in Figure 1 and Figure 2, Fig. 1, Fig. 2 are a kind of Novel fume hood for laboratories that the present invention proposes.
Reference Fig. 1, Fig. 2, the Novel fume hood for laboratories that the present invention proposes, including: cabinet 1, gas
Concentration detector 2, exhaust equipment, control unit；
It is internal that gas concentration detector 2 is located at cabinet 1, for detecting toxic and harmful in cabinet 1
Concentration；Exhaust equipment includes first row wind apparatus 3, second row wind apparatus the 4, the 3rd air exhausting device 5；Control
Unit, with first row wind apparatus 3, second row wind apparatus the 4, the 3rd air exhausting device 5 and gas concentration detector
2 communication connections, control unit obtains the concentration of toxic and harmful in cabinet 1 by gas concentration detector 2
C, and dynamically control first row wind apparatus 3, second according to the detected value C of above-mentioned gas concentration detector 2
Air exhausting device 4 and the 3rd air exhausting device 5 work；
Three air draft patterns it are preset with: the first air draft pattern, the second air draft pattern and the 3rd row in control unit
Wind pattern；When control unit selects the first air draft pattern, first row wind apparatus 3 is started working；Control unit
When selecting the second air draft pattern, first row wind apparatus 3 and second row wind apparatus 4 work simultaneously；Control unit
When selecting the 3rd air draft pattern, first row wind apparatus 3, second row wind apparatus 4 and the 3rd air exhausting device 5 are simultaneously
Work；
Control unit internal memory contains three preset concentration value: C1、C2、C3；If C≤C1, control unit selects the
One air draft pattern；If C1<C≤C2, control unit selects the second air draft pattern；If C2<C≤C3, control unit
Select the 3rd air draft pattern, wherein, C1<C2<C3；
When control unit selects the first air draft pattern, control unit adjusts the operating power of first row wind apparatus 3
For P1；When control unit selects the second air draft pattern, control unit keeps the work merit of first row wind apparatus 3
Rate is P1, and to adjust the operating power of second row wind apparatus 4 be P2；Control unit selects the 3rd air draft pattern
Time, control unit keeps the operating power of first row wind apparatus 3 to be P1, keep second row wind apparatus 4 work
The rate of doing work is P2, and to adjust the operating power of the 3rd air exhausting device 5 be P3；Wherein, P1<P2<P3；
When control unit selects the first air draft pattern, control unit determines whether poisonous and harmful in cabinet 1
The concentration C of gas and C1The magnitude relationship of/2, if C >=C1/ 2, the dense of toxic and harmful in cabinet 1 is described
Degree is just continuously increased, and in order to more quickly reduce the concentration of toxic and harmful, control unit adjusts first
The operating power of air exhausting device 3 is P2If, C < C1/ 2, show in cabinet 1 at the concentration of toxic and harmful
In controlled range, then the operating power of control unit adjustment first row wind apparatus 3 remains P1；
When control unit selects the second air draft pattern, control unit determines whether poisonous and harmful in cabinet 1
The concentration C of gas and C1+C2The magnitude relationship of/2, if C >=C1+C2/ 2, poisonous and harmful in cabinet 1 is described
The concentration of gas has the trend of constantly rising, and control unit adjusts the operating power of first row wind apparatus 3 and is
P2, adjust second row wind apparatus 4 operating power be P3, with within a short period of time by poisonous and harmful in cabinet 1
The concentration of gas is down to controlled concentration value, if C is < C1+C2/ 2, control unit adjusts the work of first row wind apparatus 3
The rate of doing work is P1, adjust second row wind apparatus 4 operating power be P2；
When control unit selects the 3rd air draft pattern, control unit determines whether poisonous and harmful in cabinet 1
The concentration C of gas and C2+C3The magnitude relationship of/2, if C >=C2+C3/ 2, show poisonous and harmful gas in cabinet 1
The concentration of body constantly raises, it is understood that there may be potential safety hazard, now needs to strengthen the air draft dynamics in cabinet 1,
It is P that control unit adjusts the operating power of first row wind apparatus 33, adjust second row wind apparatus 4 work merit
Rate is P3If, C < C2+C3/ 2, show the air draft dynamics without increasing in cabinet 1, control unit adjusts first
The operating power of air exhausting device 3 is P1, adjust second row wind apparatus 4 operating power be P2。
Present embodiment also includes that alarm 6, alarm 6 are audible-visual annunciator 6.Alarm 6 is single with control
Unit's communication connection；If the detected value C > C of gas concentration detector 23Time, the poisonous and harmful in cabinet 1 is described
The concentration of gas is to exceed warning value, and experimenter needs this situation is taked counter-measure, control unit refer to
Order controls alarm 6 and reports to the police, to remind experimenter to tackle in time.
It is equipped with defecator, mistake at first row wind apparatus 3, second row wind apparatus the 4, the 3rd air exhausting device 5
Filter device is for filtering the impurity in expellant gas；Defecator includes: acid absorbed layer, Alkali absorption layer,
Activated carbon adsorption layer and drying layer, inhale with materials such as the gas producing experiment, steam, granules comprehensively
Attached, it is to avoid toxic and harmful directly discharges and affects atmospheric environment.
Present embodiment also includes that temperature sensor 7 and display screen 8, temperature sensor 7 and display screen 8 are all provided with
Inside cabinet 1, temperature sensor 7 and display screen 8 all communicate to connect with control unit；Control unit is led to
Excess temperature sensor 7 obtains the temperature in cabinet 1 and temperature detection value is sent to display screen 8 shows,
Experimenter by display screen 8 to the temperature direct viewing in cabinet 1, with preferably to the temperature in cabinet 1
Degree is controlled, and before temperature reaches warning value, experimenter can take counter-measure in advance.
Display screen 8 also includes flashing lamp 9；Control unit internal memory contains preset temperature value, if temperature sensor 7
Detected value more than preset temperature value, show the temperature in cabinet 1 to arrive warning value, for preventing experiment people
Member does not notice that the situation of change of temperature, control unit instruction control flashing lamp 9 and flash.
Present embodiment also includes that timer 10, timer 10 communicate to connect with control unit；Control unit is led to
Cross timer 10 and obtain temporal information, and control exhaust equipment according to default time parameter and temporal information
Working time also controls exhaust equipment closedown；Control unit internal memory contains toxic and harmful concentration minima Cmin；
If C≤Cmin, control unit instruction controls to close, with in cabinet 1 after exhaust equipment works on ten minutes
Toxic and harmful discharge more thoroughly, prevent toxic and harmful from overflowing into the laboratory ring to laboratory
Border impacts.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (9)
1. a Novel fume hood for laboratories, it is characterised in that including: cabinet (1), gas concentration are examined
Survey instrument (2), exhaust equipment, control unit；
It is internal that gas concentration detector (2) is located at cabinet (1), and be used for detecting in cabinet (1) poisonous has
The concentration of evil gas；Exhaust equipment includes first row wind apparatus (3), second row wind apparatus (4), the 3rd row
Wind apparatus (5)；Control unit, with first row wind apparatus (3), second row wind apparatus (4), the 3rd air draft
Device (5) and gas concentration detector (2) communication connection, control unit passes through gas concentration detector (2)
Obtain the concentration C of cabinet (1) interior toxic and harmful, and according to above-mentioned gas concentration detector (2)
Detected value C dynamically controls first row wind apparatus (3), second row wind apparatus (4) and the 3rd air exhausting device (5)
Work；
Three air draft patterns it are preset with: the first air draft pattern, the second air draft pattern and the 3rd row in control unit
Wind pattern；When control unit selects the first air draft pattern, first row wind apparatus (3) is started working；Control single
When unit selects the second air draft pattern, first row wind apparatus (3) and second row wind apparatus (4) work simultaneously；
When control unit selects the 3rd air draft pattern, first row wind apparatus (3), second row wind apparatus (4) and the 3rd
Air exhausting device (5) works simultaneously；
Control unit internal memory contains three preset concentration value: C1、C2、C3；If C≤C1, control unit selects
First air draft pattern；If C1<C≤C2, control unit selects the second air draft pattern；If C2<C≤C3, control single
Unit selects the 3rd air draft pattern, wherein, C1<C2<C3；
When control unit selects the first air draft pattern, control unit adjusts the work merit of first row wind apparatus (3)
Rate is P1；When control unit selects the second air draft pattern, control unit keeps the work of first row wind apparatus (3)
The rate of doing work is P1, and to adjust the operating power of second row wind apparatus (4) be P2；Control unit selects the 3rd row
During wind pattern, control unit keeps the operating power of first row wind apparatus (3) to be P1, keep second air draft dress
The operating power putting (4) is P2, and to adjust the operating power of the 3rd air exhausting device (5) be P3；Wherein,
P1<P2<P3；
When control unit selects the first air draft pattern, control unit is poisonous in determining whether cabinet (1) to be had
The concentration C of evil gas and C1The magnitude relationship of/2, if C >=C1/ 2, control unit adjusts first row wind apparatus
(3) operating power is P2If, C < C1/ 2, control unit adjusts the work merit of first row wind apparatus (3)
Rate remains P1；
When control unit selects the second air draft pattern, control unit is poisonous in determining whether cabinet (1) to be had
The concentration C of evil gas and (C1+C2The magnitude relationship of)/2, if C >=(C1+C2)/2, control unit is adjusted
The operating power of whole first row wind apparatus (3) is P2, adjust second row wind apparatus (4) operating power be
P3If, C < (C1+C2)/2, it is P that control unit adjusts the operating power of first row wind apparatus (3)1, adjust
The operating power of whole second row wind apparatus (4) is P2；
When control unit selects the 3rd air draft pattern, control unit is poisonous in determining whether cabinet (1) to be had
The concentration C of evil gas and (C2+C3The magnitude relationship of)/2, if C >=(C2+C3)/2, control unit adjusts
The operating power of first row wind apparatus (3) is P3, adjust second row wind apparatus (4) operating power be P3,
If C is < (C2+C3)/2, it is P that control unit adjusts the operating power of first row wind apparatus (3)1, adjust the
The operating power of two air exhausting devices (4) is P2。
Novel fume hood for laboratories the most according to claim 1, it is characterised in that also include reporting to the police
Device (6), alarm (6) communicates to connect with control unit；If the detected value of gas concentration detector (2)
C>C3, control unit instruction controls alarm (6) and reports to the police.
Novel fume hood for laboratories the most according to claim 2, it is characterised in that described warning
Device (6) is audible-visual annunciator (6).
Novel fume hood for laboratories the most according to claim 1, it is characterised in that the first air draft dress
Put (3), second row wind apparatus (4), the 3rd air exhausting device (5) place is equipped with defecator, defecator
For filtering the impurity in expellant gas.
Novel fume hood for laboratories the most according to claim 4, it is characterised in that described filtration
Device includes: acid absorbed layer, Alkali absorption layer, activated carbon adsorption layer and drying layer.
Laboratory Novel fume chamber the most according to claim 1, it is characterised in that also include that temperature passes
Sensor (7) and display screen (8), temperature sensor (7) and display screen (8) are all located in cabinet (1)
Side, temperature sensor (7) and display screen (8) all communicate to connect with control unit；Control unit is by temperature
Degree sensor (7) obtains the temperature in cabinet (1) and temperature detection value is sent to display screen (8) carries out
Display.
Laboratory Novel fume chamber the most according to claim 6, it is characterised in that described display screen
(8) flashing lamp (9) is also included；Control unit internal memory contains preset temperature value, if temperature sensor (7)
Detected value more than preset temperature value, control unit obtains this information and instructs control flashing lamp (9) work.
Laboratory Novel fume chamber the most according to claim 1, it is characterised in that also include timer
(10), timer (10) communicates to connect with control unit；When control unit is obtained by timer (10)
Between information, and control the working time of exhaust equipment according to default time parameter and temporal information and control row
Wind devices is closed.
Laboratory Novel fume chamber the most according to claim 8, it is characterised in that control unit internal memory
Contain toxic and harmful concentration minima Cmin；If C≤Cmin, control unit instruction controls exhaust equipment and continues
Close after working ten minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610409233.6A CN106001041B (en) | 2016-06-03 | 2016-06-03 | A kind of ventilation hoods for laboratories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610409233.6A CN106001041B (en) | 2016-06-03 | 2016-06-03 | A kind of ventilation hoods for laboratories |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001041A true CN106001041A (en) | 2016-10-12 |
| CN106001041B CN106001041B (en) | 2018-11-20 |
Family
ID=57091086
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610409233.6A Active CN106001041B (en) | 2016-06-03 | 2016-06-03 | A kind of ventilation hoods for laboratories |
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| CN106807709A (en) * | 2016-12-30 | 2017-06-09 | 安徽育安实验室装备有限公司 | A kind of ventilation hoods for laboratories intelligent control system |
| CN106839270A (en) * | 2016-12-30 | 2017-06-13 | 安徽育安实验室装备有限公司 | A kind of laboratory automation ventilated control system |
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| CN108069575A (en) * | 2017-12-15 | 2018-05-25 | 江苏和合环保集团有限公司 | A kind of Treatment of Sludge exhaust system |
| CN108181434A (en) * | 2018-01-26 | 2018-06-19 | 宇星科技发展(深圳)有限公司 | Industrial waste gas on-line monitoring system and method |
| CN109118722A (en) * | 2018-08-31 | 2019-01-01 | 钟祥博谦信息科技有限公司 | A kind of combustible gas detecting device and system |
| CN110657547A (en) * | 2019-09-26 | 2020-01-07 | 珠海格力电器股份有限公司 | Hazardous gas concentration monitoring system and method and gas sensor |
| CN114811899A (en) * | 2022-03-14 | 2022-07-29 | 青岛海尔空调器有限总公司 | Washing air conditioner and control method thereof |
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| CN107661893A (en) * | 2017-11-02 | 2018-02-06 | 上海埃松气流控制技术有限公司 | A kind of intelligent vent cabinet system |
| CN108069575A (en) * | 2017-12-15 | 2018-05-25 | 江苏和合环保集团有限公司 | A kind of Treatment of Sludge exhaust system |
| CN108181434A (en) * | 2018-01-26 | 2018-06-19 | 宇星科技发展(深圳)有限公司 | Industrial waste gas on-line monitoring system and method |
| CN109118722A (en) * | 2018-08-31 | 2019-01-01 | 钟祥博谦信息科技有限公司 | A kind of combustible gas detecting device and system |
| CN110657547A (en) * | 2019-09-26 | 2020-01-07 | 珠海格力电器股份有限公司 | Hazardous gas concentration monitoring system and method and gas sensor |
| CN114811899A (en) * | 2022-03-14 | 2022-07-29 | 青岛海尔空调器有限总公司 | Washing air conditioner and control method thereof |
| CN114811899B (en) * | 2022-03-14 | 2024-04-19 | 青岛海尔空调器有限总公司 | Water-washing air conditioner and control method thereof |
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|---|---|
| CN106001041B (en) | 2018-11-20 |
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