CN208879312U - A kind of air-replenishing type ventilating cabinet - Google Patents
A kind of air-replenishing type ventilating cabinet Download PDFInfo
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- CN208879312U CN208879312U CN201821339571.8U CN201821339571U CN208879312U CN 208879312 U CN208879312 U CN 208879312U CN 201821339571 U CN201821339571 U CN 201821339571U CN 208879312 U CN208879312 U CN 208879312U
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Abstract
The utility model discloses a kind of air-replenishing type ventilating cabinets, including cabinet body, the operating room of the cabinet body side is set and the door body of the operating room opening is set, it is equipped in the cabinet body and moves up and down driving assembly to open or close the operating room for controlling the door body, the lower section of the cabinet body is equipped with foot and kicks open pass, and the position being located above the door body on the cabinet body is equipped with human body infrared inductor；The top of the cabinet body is equipped with the wind-supplying mouth and exhaust duct being connected to the operating room, is equipped at the wind-supplying mouth and is in communication with the outside with the extraneous air compensation device for carrying out gas exchanges, the exhaust duct far from one end of the cabinet body.The utility model has the advantages that air can be extracted from the external world as benefit wind source, ventilation cabinet is avoided when mending wind, the load caused by indoor heating or refrigeration system makes to mend wind cabinet while not influencing Laboratory Air composition, also has preferable benefit wind effect.
Description
Technical field
The utility model relates to a kind of vent cabinet, in particular to a kind of air-replenishing type ventilating cabinet.
Background technique
Vent cabinet is essential equipment in laboratory ventilation system because mostly biochemical test can all generate it is harmful,
Poisonous gas and particle (smog, coal smoke, dust etc.) can effectively prevent these nocuousness by the ventilatory of vent cabinet
Substance evolution cabinet is outer to damage the body of staff, it is ensured that the personal safety of staff.
Existing vent cabinet constantly extracts room air at work rather than outdoor air is as supply, this will will lead to interior
Heat or cold air be lost serious, waste a large amount of heating or refrigeration resource, and also increase heating or refrigeration system
Load, while during extracting room air, it is also possible to due to the principle of air blow back, lead to harmful gas in vent cabinet
Body flows backward in laboratory, causes some potential safety problems.
Utility model content
The purpose of the utility model is to provide a kind of air-replenishing type ventilating cabinets, its advantage is that can extract air conduct from the external world
Wind source is mended, avoids ventilation cabinet when mending wind, the load caused by indoor heating or refrigeration system is influencing benefit wind cabinet not
While Laboratory Air forms, also there is preferable benefit wind effect.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of compensating ventilation cabinet ventilation
Cabinet including cabinet body, is arranged in the operating room of the cabinet body side and the door body of the operating room opening, the cabinet is arranged in
It is equipped in vivo and moves up and down driving assembly to open or close the operating room for controlling the door body, the cabinet body
Lower section is equipped with foot and kicks open pass, and the position being located above the door body on the cabinet body is equipped with human body infrared inductor；
The top of the cabinet body is equipped with the wind-supplying mouth and exhaust duct being connected to the operating room, installs at the wind-supplying mouth
Have and is in communication with the outside with the extraneous air compensation device for carrying out gas exchanges, the exhaust duct far from one end of the cabinet body.
Through the above technical solutions, being kicked to kick open in foot with foot and be shut operating room when staff carries out chemical experiment
It opens, when needing to mend wind, opens air compensation device, it is made to carry out gas exchanges with the external world, it will be in extraneous air sucking operating room
It is supplemented, while exhaust gas being discharged by exhaust duct, when staff completes chemical experiment and leaves operating room, human body
Infrared inductor senses unattended, controls door body by driving assembly and moves downward automatically and close operating room, on
It states and is set as user and provides the operating experience of more safe and convenient.
Vent cabinet in compared with the prior art, benefit wind vent cabinet in the application extract air as mending wind from the external world
Source avoids ventilation cabinet when mending wind, and the load caused by indoor heating or refrigeration system makes it not influence to test Interior Space
While gas forms, also there is preferable benefit wind effect；The amount of wind and air draft is mended by control to make to form pressure in operating room
Difference can guarantee zero leakage, use relatively reliable.
The utility model is further arranged to: the air compensation device includes be connected with the wind-supplying mouth secondary air channel, installation
Blower in the secondary air channel and the air supply tube being connected with the secondary air channel, the one end of the air supply tube far from secondary air channel
It is in communication with the outside, the both ends of the secondary air channel pass through flange and are connected with the wind-supplying mouth and the air supply tube.
Through the above technical solutions, when mending wind, control blower rotation, thus by extraneous air by air supply tube, secondary air channel,
Wind-supplying mouth sucks in operating room, while when exhaust air rate is greater than and mends air quantity, forming negative pressure in operating room, ambient atmos are by negative pressure
It influences to carry out benefit wind in passive sucking operating room.
The utility model is further arranged to: the position in the secondary air channel and above the blower is equipped with air mistake
Filter cylinder, one end of the air filtration cartridge are connected with fixed ring, and the secondary air channel is opened on the flange of described air supply tube one end
Equipped with the step for accommodating the fixed ring, the fixed ring is overlapped in the step to hold up the air filtration cartridge.
Through the above technical solutions, air filtration cartridge is protruded into secondary air channel, and fixed ring is made to be overlapped on step when installation
It is interior, so that air filtration cartridge be held up, then it is fixedly clamped by two flanges；The setting of air filtration cartridge, for extraction
Fresh air is filtered, and prevents the dust granules in air from carrying out influencing the accuracy of chemical experiment in operating room.
The utility model is further arranged to: in the operating room and between the wind-supplying mouth and the exhaust duct
Position be equipped with the demarcation plate that is vertically arranged, the demarcation plate will be separated into the operating room mends wind chamber and air draft chamber.
Through the above technical solutions, the setting of demarcation plate makes the air filled by benefit wind chamber for will separate in operating room
Flow into, the exhaust gas of required discharge is discharged by air draft chamber, prevent just from the fresh air that the external world covers do not flow through also operating room just by
Discharge is outdoor, and exhaust gas remains in operating room, eventually leads to exhaust residual.
The utility model is further arranged to: the lower end of the demarcation plate corresponds to the benefit wind chamber and air draft chamber difference
It is connected with the first deflector and the second deflector, first deflector and second deflector are set towards the direction mutually deviated from
It sets.
Through the above technical solutions, the setting of the first deflector and the second deflector, for being oriented to air-flow, make by
The air of sucking flows into operating room along the channel that the first deflector and operation chamber interior walls are formed, then under the first deflector
Then Fang Liujing operating room carries exhaust gas and is flowed into exhaust duct by the channel that the second deflector and operation chamber interior walls are formed, most
It is discharged eventually by exhaust duct outdoor.
The utility model is further arranged to: offering several ventholes on first deflector.
Through the above technical solutions, when the air filled into is flowed along the first deflector, air by venthole gradually, by
Layer ground enters in operating room, prevents the blocking due to the first deflector, makes the injection of shortage fresh air in position among operating room,
And the exhaust gas in the region is caused to be not easy to be discharged.
The utility model is further arranged to: the driving component include the motor for being horizontally set on the interior of the cabinet,
It is fixed in the bevel gear one and the intermeshing bevel gear two of the bevel gear one of the motor output shaft end, the cone tooth
The lower surface of wheel two is vertically connected with screw rod, and the screw rod passes through the bevel gear two, and its both ends is rotated with the cabinet body
It connects, is threaded with sliding block on the screw rod, the sliding block and the door body are affixed.
Through the above technical solutions, driving intermeshing bevel gear one and bevel gear when motor rotates clockwise
Two rotations, and then screw rod rotation is driven, sliding block drives door body to move upwards at this time, and operating room is opened；When motor turns counterclockwise
When dynamic, drive door body to move downward, operating room is closed.
The utility model is further arranged to: the position that the door body two sides are corresponded on the cabinet body is offered for the door
The guide groove that body slides up and down.
Through the above technical solutions, the setting of guide groove prevents it in the mistake of up and down motion for being oriented to door body
It is shaken in journey.
The utility model is further arranged to: it is located at the door body following location directly on the cabinet body and is equipped with air curtain,
The outside of the door body is equipped with the range sensor for measuring distance between the air curtain and the door body.
Through the above technical solutions, range sensor senses the variation of distance, and signal is transmitted when door body is opened
To air curtain, air curtain is opened, and form air curtain towards the direction jet-stream wind of door body, prevents staff from carrying out chemistry in fact
When testing, operates indoor exhaust gas and overflowed from opening, the health of staff is impacted, after door body is closed, wind
Curtain machine is automatically closed.
The utility model is further arranged to: series winding is equipped with air filter on the exhaust duct.
Through the above technical solutions, the setting of air filter, makes atmosphere for preventing exhaust gas to be directly discharged into extraneous
At pollution.
In conclusion the utility model has the following beneficial effects:
1, the benefit wind vent cabinet in the application extracts air as wind source is mended from the external world, avoids ventilation cabinet and is mending wind
When, the load caused by indoor heating or refrigeration system, make its do not influence Laboratory Air composition while, also have compared with
Good benefit wind effect；
2, the amount of wind and air draft is mended by control to make to form pressure difference in operating room, can guarantees zero leakage, makes
It uses relatively reliable；
3, by setting air filtration cartridge, make that the air plankton filled into is few, cleanliness is high；
4, by setting air curtain and range sensor, staff is reduced when carrying out chemical laboratory, exhaust gas is let out
A possibility that leakage.
Detailed description of the invention
Fig. 1 is the overall structure diagram of air-replenishing type ventilating cabinet；
Fig. 2 is the structural schematic diagram for embodying driving assembly；
Fig. 3 is the enlarged diagram in Fig. 2 at A；
Fig. 4 is the structural schematic diagram for embodying wind-supplying mouth and air compensation device positional relationship；
Fig. 5 is the perspective view of the explosion for embodying air compensation device structure；
Fig. 6 is the structural schematic diagram for embodying demarcation plate, the first deflector and the second deflector.
In figure, 1, cabinet body；11, operating room；111, wind chamber is mended；112, air draft chamber；12, door body；13, guide groove；14, foot is kicked
Switch；15, human body infrared inductor；16, wind-supplying mouth；2, driving assembly；21, motor；22, bevel gear one；23, bevel gear two；
24, screw rod；25, sliding block；3, air curtain；4, range sensor；5, exhaust duct；6, air compensation device；61, secondary air channel；62, method
It is blue；621, step；63, blower；64, air supply tube；65, air filtration cartridge；66, fixed ring；7, air filter；8, demarcation plate；
81, the first deflector；811, venthole；82, the second deflector.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom
Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment: a kind of air-replenishing type ventilating cabinet, as depicted in figs. 1 and 2, including cabinet body 1,1 side of cabinet body are equipped with operating room
11, it is used for chemical experiment, the side of operating room 11 to be equipped with opening, and opening is equipped with door body 12, corresponds to 12 liang of door body on cabinet body 1
The position of side offers vertical guide groove 13 respectively, and door body 12 is slidably arranged in guide groove 13, in cabinet body 1 and is located at operation
The position of 11 top of room is equipped with driving assembly 2, moves up and down for controlling door body 12 along guide groove 13, so that operating room 11 be beaten
On or off is closed, and the lower section of cabinet body 1 is equipped with foot and kicks open pass 14, when staff carries out chemical experiment, is kicked with foot and is kicked open pass in foot
Operating room 11 can be opened on 14, the position that 12 top of door body is located on cabinet body 1 is equipped with human body infrared inductor 15, works as work
Make personnel and complete chemical experiment and when leaving operating room 11, human body infrared inductor 15 senses unattended, passes through driving
Component 2 control door body 12 move downward automatically and close operating room 11, it is above-mentioned be set as user provide more safely just
Prompt operating experience.
As shown in Figures 2 and 3, driving assembly 2 includes the motor 21 being horizontally set on inside cabinet body 1,21 output shaft of motor
End be connected with bevel gear 1, the side of bevel gear 1 is equipped with intermeshing bevel gear 2 23 therewith, bevel gear two
23 lower surface is vertically connected with screw rod 24, and screw rod 24 passes through bevel gear 2 23, and its both ends is rotatablely connected with cabinet body 1,
Sliding block 25 is threaded on screw rod 24, the side of close door body 12 and door body 12 are affixed on sliding block 25, when motor 21 is clockwise
When rotation, intermeshing bevel gear 1 and bevel gear 2 23 is driven to rotate, and then screw rod 24 is driven to rotate, at this time sliding block
25 drive door body 12 move upwards, and operating room 11 is opened；When motor 21 rotates counterclockwise, door body 12 is driven to move downward,
Operating room 11 is closed.
As shown in Fig. 2, being located at 12 following location directly of door body on cabinet body 1 is equipped with air curtain 3, the outside of door body 12, which is equipped with, to be surveyed
The range sensor 4 for measuring distance between air curtain 3 and door body 12, when door body 12 is opened, range sensor 4 senses distance
Variation, and signal is passed into air curtain 3, air curtain 3 is opened, and form air curtain towards the direction jet-stream wind of door body 12, prevented
Only when carrying out chemical experiment, the exhaust gas in operating room 11 overflows staff from opening, to the health of staff
It impacts, after door body 12 is closed, air curtain 3 is automatically closed.
As shown in figure 4, the top of cabinet body 1 is equipped with the wind-supplying mouth 16 and exhaust duct 5 being connected with operating room 11, wind-supplying mouth
Air compensation device 6 is installed, by carrying out gas exchanges with the external world, to convey air into operating room 11 at 16；Air-exhausting duct
The exhaust system progress that the one end of road 5 far from cabinet body 1 can be built with the exhaust system in place laboratory or place is external, thus
Outwardly dispatch exhaust gas pollutes atmosphere, the series winding installation one on exhaust duct 5 to prevent exhaust gas to be directly discharged into extraneous
Air filter 7, makes exhaust gas be discharged into atmosphere again after filtering, so that atmosphere be effectively protected.
As shown in Figure 4 and Figure 5, air compensation device 6 includes secondary air channel 61, is connected by flange 62 with wind-supplying mouth 16, is mended
Blower 63 is installed, which is power adjustable blower 63, and according to the needs for mending wind, staff can pass through in air hose 61
The size of 63 power of blower is adjusted, to be adjusted to the flow for mending wind, one end on secondary air channel 61 far from wind-supplying mouth 16 is logical
It crosses flange 62 and is connected with air supply tube 64, the other end of air supply tube 64 is in communication with the outside, and when mending wind, control blower 63 is rotated, thus
Extraneous air is sucked in operating room 11 by air supply tube 64, secondary air channel 61, wind-supplying mouth 16, while mending air quantity when exhaust air rate is greater than
When, operating room 11 is interior to form negative pressure, and ambient atmos are influenced passively to suck by negative pressure carries out benefit wind, secondary air channel 61 in operating room 11
The setting being detachably connected with its both ends was cleared up and is safeguarded to blower 63 convenient for staff's later period.
To prevent the dust granules in air from carrying out the accuracy of chemical experiment being influenced, in secondary air channel 61 in operating room 11
Air filtration cartridge 65 is arranged in position that is interior and being located at 63 top of blower, is filtered it to the air entered in secondary air channel 61,
One end of air filtration cartridge 65 is connected with fixed ring 66, and secondary air channel 61 is offered on the flange 62 of 64 one end of air supply tube and is used for
The step 621 for accommodating fixed ring 66 when installation, air filtration cartridge 65 is protruded into secondary air channel 61, and be overlapped on fixed ring 66
At step 621, so that air filtration cartridge 65 be held up, then it is fixedly clamped by two flanges 62.
As shown in fig. 6, seeing Fig. 4 positioned at wind-supplying mouth 16 and exhaust duct 5(in operating room 11) between position be equipped with it is vertical
The demarcation plate 8 of setting will be separated into operating room 11 and mend wind chamber 111 and air draft chamber 112, the setting of demarcation plate 8, for that will grasp
Make to separate in room 11, flow into the air filled by benefit wind chamber 111, the exhaust gas of required discharge is discharged by air draft chamber 112, is prevented just
The fresh air covered from the external world does not flow through operating room 11 also and is just discharged outdoor, and exhaust gas remains in operating room 11, most
Lead to exhaust residual eventually.
The corresponding benefit wind chamber 111 in the lower end of demarcation plate 8 and air draft chamber 112 have been respectively and fixedly connected with the first deflector 81 and the second water conservancy diversion
Plate 82, the two are arranged towards the direction mutually deviated from, for being oriented to air-flow, make the air being inhaled into along the first deflector 81
It is flowed into operating room 11 with the channel that 11 inner wall of operating room is formed, then flows through operating room 11 from the lower section of the first deflector 81,
Then it carries exhaust gas to be flowed into exhaust duct 5 by the second deflector 82 and the channel that 11 inner wall of operating room is formed, finally by air draft
Outdoor is discharged in pipeline 5.
As shown in fig. 6, several ventholes 811 are offered on the first deflector 81, when the air filled into is along the first deflector
When 81 flowing, air is entered in operating room 11 gradually, layer by layer by venthole 811, prevents the resistance due to the first deflector 81
Gear makes the intermediate position of operating room 11 lack the injection of fresh air, and the exhaust gas in the region is caused to be not easy to be discharged.
Vent cabinet in compared with the prior art, benefit wind vent cabinet in the application extract air as mending wind from the external world
Source avoids ventilation cabinet when mending wind, and the load caused by indoor heating or refrigeration system makes it not influence to test Interior Space
While gas forms, also there is preferable benefit wind effect；The amount of wind and air draft is mended by control to make to form pressure in operating room 11
Power is poor, can guarantee zero leakage, uses relatively reliable；Also make to mend by setting air filtration cartridge 65 in the application
The air plankton entered is few, cleanliness is high；By setting air curtain 3 and range sensor 4, reduces staff and carrying out chemistry
When laboratory, a possibility that exhaust gas leakage.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of air-replenishing type ventilating cabinet, operating room (11) and setting including cabinet body (1), setting in the cabinet body (1) side
In the door body (12) of the operating room (11) opening, it is characterized in that: being equipped in the cabinet body (1) for controlling the door body
(12) driving assembly (2) to open or close the operating room (11) is moved up and down, the lower section of the cabinet body (1) is equipped with foot
It kicks open pass (14), the position above the door body (12) is located on the cabinet body (1), human body infrared inductor (15) are installed；
The top of the cabinet body (1) is equipped with the wind-supplying mouth (16) and exhaust duct (5) being connected to the operating room (11), the benefit
It is equipped at air port (16) and the extraneous air compensation device (6) for carrying out gas exchanges, the separate cabinet body of the exhaust duct (5)
(1) one end is in communication with the outside.
2. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: the air compensation device (6) include with it is described
Wind-supplying mouth (16) be connected secondary air channel (61), the blower (63) that is mounted in the secondary air channel (61) and with the secondary air channel
(61) air supply tube (64) being connected, the air supply tube (64) are in communication with the outside far from the one end of secondary air channel (61), the benefit wind
The both ends of pipe (61) pass through flange (62) and are connected with the wind-supplying mouth (16) and the air supply tube (64).
3. a kind of air-replenishing type ventilating cabinet according to claim 2, it is characterized in that: in the secondary air channel (61) and being located at described
Position above blower (63) is equipped with air filtration cartridge (65), and one end of the air filtration cartridge (65) is connected with fixed ring
(66), the secondary air channel (61) offers on the flange (62) of the air supply tube (64) one end accommodates the fixed ring (66)
Step (621), the fixed ring (66) is overlapped in the step (621) to hold up the air filtration cartridge (65).
4. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: in the operating room (11) and being located at described
Position between wind-supplying mouth (16) and the exhaust duct (5) is equipped with the demarcation plate (8) being vertically arranged, and the demarcation plate (8) will
It is separated into the operating room (11) and mends wind chamber (111) and air draft chamber (112).
5. a kind of air-replenishing type ventilating cabinet according to claim 4, it is characterized in that: the lower end of the demarcation plate (8) corresponds to institute
It states and mends wind chamber (111) and the air draft chamber (112) and be respectively and fixedly connected with the first deflector (81) and the second deflector (82), described the
One deflector (81) and second deflector (82) are arranged towards the direction mutually deviated from.
6. a kind of air-replenishing type ventilating cabinet according to claim 5, it is characterized in that: being offered on first deflector (81)
Several ventholes (811).
7. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: the driving component (2) is set including level
It sets in the internal motor (21) of the cabinet body (1), the bevel gear one (22) for being fixed in the motor (21) output shaft end and institute
The intermeshing bevel gear two (23) of bevel gear one (22) is stated, the lower surface of the bevel gear two (23) is vertically connected with screw rod
(24), the screw rod (24) passes through the bevel gear two (23), and its both ends is rotatablely connected with the cabinet body (1), the spiral shell
It is threaded on bar (24) sliding block (25), the sliding block (25) and the door body (12) are affixed.
8. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: corresponding to the door body on the cabinet body (1)
(12) position of two sides offers the guide groove (13) slided up and down for the door body (12).
9. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: being located at the door body on the cabinet body (1)
(12) following location directly is equipped with air curtain (3), and the outside of the door body (12), which is equipped with, measures the air curtain (3) and the door
The range sensor (4) of distance between body (12).
10. a kind of air-replenishing type ventilating cabinet according to claim 1, it is characterized in that: installation of contacting on the exhaust duct (5)
There are air filter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339571.8U CN208879312U (en) | 2018-08-20 | 2018-08-20 | A kind of air-replenishing type ventilating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339571.8U CN208879312U (en) | 2018-08-20 | 2018-08-20 | A kind of air-replenishing type ventilating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208879312U true CN208879312U (en) | 2019-05-21 |
Family
ID=66509270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821339571.8U Active CN208879312U (en) | 2018-08-20 | 2018-08-20 | A kind of air-replenishing type ventilating cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN208879312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479722A (en) * | 2019-08-20 | 2019-11-22 | 广东天赐湾实验室装备制造有限公司 | The energy-saving safe laboratory hood circulatory system |
| CN113058962A (en) * | 2021-04-14 | 2021-07-02 | 北京鸣远诺尔科技有限公司 | Fume chamber with air supply device |
| CN113578910A (en) * | 2021-08-30 | 2021-11-02 | 青岛中科汉维实验室装备科技有限公司 | Low-energy-consumption air supplementing type laboratory ventilation cabinet |
| CN117102190A (en) * | 2023-10-25 | 2023-11-24 | 浙江之科云启科技有限公司 | Fume hood for biological experiments |
-
2018
- 2018-08-20 CN CN201821339571.8U patent/CN208879312U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479722A (en) * | 2019-08-20 | 2019-11-22 | 广东天赐湾实验室装备制造有限公司 | The energy-saving safe laboratory hood circulatory system |
| CN113058962A (en) * | 2021-04-14 | 2021-07-02 | 北京鸣远诺尔科技有限公司 | Fume chamber with air supply device |
| CN113058962B (en) * | 2021-04-14 | 2022-08-23 | 北京鸣远诺尔科技有限公司 | Fume chamber with air supply device |
| CN113578910A (en) * | 2021-08-30 | 2021-11-02 | 青岛中科汉维实验室装备科技有限公司 | Low-energy-consumption air supplementing type laboratory ventilation cabinet |
| CN117102190A (en) * | 2023-10-25 | 2023-11-24 | 浙江之科云启科技有限公司 | Fume hood for biological experiments |
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