CN207126961U - A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating - Google Patents
A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating Download PDFInfo
- Publication number
- CN207126961U CN207126961U CN201720704735.1U CN201720704735U CN207126961U CN 207126961 U CN207126961 U CN 207126961U CN 201720704735 U CN201720704735 U CN 201720704735U CN 207126961 U CN207126961 U CN 207126961U
- Authority
- CN
- China
- Prior art keywords
- filter chamber
- chamber
- water conservancy
- conservancy diversion
- ventilation equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating, belong to laboratory special equipment field.It is characterized in that：Including vent cabinet, the top of the vent cabinet sets experimental box body, is set in the experimental box body and tests cavity, and the experiment cavity is spherical in shape；On the top of experimental box body, ventilation equipment are set；The ventilation equipment include aspiration channel and inherent filtration device, one end UNICOM experiment cavity of the aspiration channel, the other end connection inherent filtration device of aspiration channel；Inherent filtration device can aspirate the gas in experiment cavity by aspiration channel.
Description
Technical field
The utility model belongs to laboratory special equipment field, and in particular to it is a kind of prevent waste gas from accumulating laboratory it is special
Ventilation equipment.
Background technology
Traditional experiment chamber ventilated cabinet is relatively simple, is provided with the supply of experiment space, air exhauster and correlation merely
Power supply auxiliary equipment.But old-fashioned vent cabinet is in actual use, often exist waste gas escape, pollute or toxic gas collect it is inadequate
The problem of in time and abundant, environmental pollution is caused, or even jeopardize the health and safety of experimenter.Especially must be in vent cabinet
The particular experiment of progress, often relates to combustion process, and while producing a large amount of flue gases, flue-gas temperature is higher, is conveyed in discharge
Cheng Zhonghui, which makes, produces substantial amounts of condensed water in pipeline, if operation is collected in the absorption for carrying out waste gas merely, without being carried out to heat
Processing, can cause serious accident.
Further, since the special gases such as oxygen, nitrogen, combustion gas are needed in experimentation, it is also necessary to various functions fluid
Conveying, the container of these materials generally required in the cabinet being arranged near experiment cabinet, how rationally adjustable division
Store airborne, and when lab space and above-mentioned storage space are used in conjunction with, make it possess efficient performance, be
Industry needs the another problem solved.
Applicant is applied by research and development for many years and actual go into operation, and devises the experiment vent cabinet described in this patent, no
But more easily experiment condition can be provided, and can also be more scientific and reasonable processing waste gas, make experimentation more pacify
Complete controllable, the personal safety of practical Protection personnel and health status, in addition, experimental assembly storage space is rationally designed, point
Septal area domain is flexibly adjustable, makes the design more hommization of equipment.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of special ventilation in laboratory for preventing waste gas from accumulating and set
It is standby, be not only able to provide more easily experiment condition, and can also be more scientific and reasonable processing waste gas, make experimentation more
Add safely controllable, the personal safety of practical Protection personnel and health status, in addition, rationally designing experimental assembly stores sky
Between, separated region is flexibly adjustable, makes the design more hommization of equipment.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of experiment for preventing waste gas from accumulating is provided
The special ventilation equipment in room, it is characterised in that：Including vent cabinet, the top of the vent cabinet sets experimental box body, the experimental box
Set in vivo and test cavity, the experiment cavity is spherical in shape；On the top of experimental box body, ventilation equipment are set；The ventilation equipment
Including aspiration channel and inherent filtration device, one end UNICOM experiment cavity of the aspiration channel, the other end connection inherent filtration of aspiration channel
Device；Inherent filtration device can aspirate the gas in experiment cavity by aspiration channel.
The bottom of the vent cabinet sets experimental facilities storage space, in the upper top surface of experimental facilities storage space and bottom
Several grille strips are set respectively on face, grasping part is retained between adjacent grille strip；It is inserted into the grasping part
Spatial clapboard.
Preferably, vessel perforation is opened up on the upper top surface between adjacent gate glazing bar, interts gas in the vessel perforation
Conduit or liquid conduits, the upper end connection angle adjustable nozzle of the gas conduit or liquid conduits；The adjustable angle
Nozzle is arranged in experiment cavity by nozzle angle adjuster；The nozzle angle adjuster includes mounting seat, the peace
The one end for installing arc torsional brace on base by the first damping jointed shaft is filled, the other end of arc torsional brace passes through second
Damp jointed shaft connection angle adjustable nozzle；The adjustable angle nozzle can hover in any bending angle position.
Preferably, the inherent filtration device includes functional shell, set in the functional shell inlet air passage, air inducing chamber,
Settle pipeline, cooling liquid filter chamber, water conservancy diversion diffusion admittance, filter pulp filter chamber, neutralization filter chamber, activated carbon filter chamber, lime particle
Filter chamber and air-out passage；Filter pulp device and tubaeform airflow commutating device are set in the filter pulp filter chamber；
Wherein, the lower end connection aspiration channel of inlet air passage, the upper end connection air inducing chamber of inlet air passage；
Air inlet and air outlet are set on the air inducing chamber, air inducing wheel is set in air inducing intracavitary, the air inlet of air inducing chamber connects
Connect aspiration channel, the upper end of the air outlet connection sedimentation pipeline of air inducing chamber；The lower end insertion cooling liquid filter chamber of the sedimentation pipeline
Bottom；
The lower end of the top UNICOM water conservancy diversion diffusion admittance of the cooling liquid filter chamber, the upper end connection loudspeaker of water conservancy diversion diffusion admittance
Shape airflow commutating device, rectification screen cloth is set, if being set on rectification screen cloth at the horn mouth of the tubaeform airflow commutating device
Dry rectification stomata；The front of rectification screen cloth and the filtering web of filter pulp device is oppositely arranged；Plane and mistake where rectification screen cloth
Plane where filter pulp net is parallel to each other and at intervals of 1-2cm；
In the bottom UNICOM of filter pulp filter chamber and filter chamber top, neutralize the bottom UNICOM activated carbon filter chamber of filter chamber
Top, the bottom of the bottom UNICOM lime particle filter chamber of activated carbon filter chamber, the top UNICOM of lime particle filter chamber goes out
Wind passage.
Preferably, more than three groups of water conservancy diversion swing arm set, the water conservancy diversion pendulum are vertically arranged along air intake direction in inlet air passage
Arm group includes at least two water conservancy diversion swing arms, and the setting height(from bottom) of the water conservancy diversion swing arm in each water conservancy diversion swing arm set is identical；Water conservancy diversion swing arm is led to
Cross on the inwall of mounting rod installation inlet air passage；Water conservancy diversion swing arm connects mounting rod by motorized pulleys, and water conservancy diversion swing arm can be electric
Dynamic roller rotates；General mood hole is opened up on mounting rod；More than two cowling panels are set between inlet air passage and air inducing chamber, it is described
Rectification hole is opened up on cowling panel；The aperture of the rectification hole is 2-3mm.
Preferably, the body of the sedimentation pipeline and water conservancy diversion diffusion admittance comprises at least the bending at a 90-120 degree angle
Point.
Preferably, " returning " font or spiral shape hydrojet coil pipe are set in the neutralization filter chamber, set on the hydrojet coil pipe
Hydrojet micropore is put, the aperture of the hydrojet micropore is 0.1-0.3mm；The liquid feeding end of hydrojet coil pipe is connected by neutralizer liquid feeding pump
Neutralising fluid storehouse, the neutralising fluid in neutralising fluid storehouse can be neutralized in liquid liquid feeding pump suction hydrojet coil pipe, and passes through hydrojet
Micropore sprays；Bottom with filter chamber in sets liquid storage tank.
Preferably, the filter pulp device also includes filter pulp elastic retainers, and it is solid that the filtering web is arranged on filter pulp elasticity
Determine on device；Filter pulp elastic retainers include fixator cylinder, and fixator cylinder open at one end simultaneously sets block, fixator cylinder
The other end is closed, and sets extension spring in fixator cylinder, and one end of extension spring is connected the blind end bottom of device cylinder, extension spring
The other end connects expansion plate, and expansion plate is arranged in fixator cylinder and stopped by block, and screw hole, mistake are installed on expansion plate
The edge of the filter pulp net device cylinder that is fastened is fixed on expansion plate after one week by tensioner screw.
Compared with prior art, the beneficial effects of the utility model are：
Vent cabinet described in the utility model, is not only able to provide more easily experiment condition, and can also more section
Rational processing waste gas is learned, makes experimentation more safely controllable, the personal safety of practical Protection personnel and health status,
In addition, rationally designing experimental assembly storage space, separated region is flexibly adjustable, makes the design more hommization of equipment.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of inherent filtration device；
Fig. 3 is Fig. 2 A portions partial enlarged drawing；
Fig. 4 is sectional view of the present utility model；
Fig. 5 is Fig. 4 B portions enlarged drawing；
In figure：
1st, inherent filtration device；1.1st, functional shell；1.2nd, web is filtered；1.3rd, tubaeform airflow commutating device；1.4th, spray
Liquid coil pipe；1.5th, lime particle filter chamber；1.6th, activated carbon filter chamber；1.7th, cool liquid filter chamber；1.9th, inlet air passage；1.10、
Water conservancy diversion swing arm；1.14, cowling panel；1.15th, air inducing chamber；1.16th, air inducing wheel；1.17th, pipeline is settled；1.18th, water conservancy diversion diffusion is logical
Road；1.19, extension spring；1.20th, fixator cylinder；1.21, expansion plate；1.22nd, tensioner screw；1.23, air-out passage；
2nd, aspiration channel；
4th, cavity is tested；
5th, experimental facilities storage space；5.1st, vessel perforation；5.2nd, grille strip；5.3rd, spatial clapboard；5.4th, adjustable angle
Nozzle；5.5th, arc torsional brace；5.6th, mounting seat.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating include kiln body, including vent cabinet, institute
The top for stating vent cabinet sets experimental box body, is set in the experimental box body and tests cavity, and the experiment cavity is spherical in shape；In reality
The top of tryoff body sets ventilation equipment；The ventilation equipment include aspiration channel and inherent filtration device, one end of the aspiration channel
Cavity, the other end connection inherent filtration device of aspiration channel are tested by UNICOM；Inherent filtration device can aspirate experiment chamber by aspiration channel
Internal gas.
Inherent filtration device can aspirate the gas in experiment cavity by aspiration channel.This design is retaining original equipment function not
In the case of change, experimental gas collection will be carried out first originally, then again enter the experimental gas in more laboratory hoods
Row convergence, experimental gas is conveyed into the indoor mode of discharge finally by the transfer pipeline of equivalent length and changed into, directly will be real
Test room and carry out the indoor in line of the individual of separate single one with vent cabinet, on the one hand reduce the installation cost of the equipment, on the other hand
Pollution of the discharge to atmospheric environment outside experimental gas room is eliminated.
As shown in Fig. 2 the inherent filtration device includes functional shell, inlet air passage, air inducing are set in the functional shell
Chamber, sedimentation pipeline, cooling liquid filter chamber, water conservancy diversion diffusion admittance, filter pulp filter chamber, neutralization filter chamber, activated carbon filter chamber, lime
Grain filter chamber and air-out passage；Filter pulp device and tubaeform airflow commutating device are set in the filter pulp filter chamber.
Wherein, the lower end connection aspiration channel of inlet air passage, the upper end connection air inducing chamber of inlet air passage.
Air inlet and air outlet are set on the air inducing chamber, air inducing wheel is set in air inducing intracavitary, the air inlet of air inducing chamber connects
Connect aspiration channel, the upper end of the air outlet connection sedimentation pipeline of air inducing chamber；The lower end insertion cooling liquid filter chamber of the sedimentation pipeline
Bottom.
The lower end of the top UNICOM water conservancy diversion diffusion admittance of the cooling liquid filter chamber, the upper end connection loudspeaker of water conservancy diversion diffusion admittance
Shape airflow commutating device, rectification screen cloth is set, if being set on rectification screen cloth at the horn mouth of the tubaeform airflow commutating device
Dry rectification stomata；The front of rectification screen cloth and the filtering web of filter pulp device is oppositely arranged；Plane and mistake where rectification screen cloth
Plane where filter pulp net is parallel to each other and at intervals of 1-2cm.
In the bottom UNICOM of filter pulp filter chamber and filter chamber top, neutralize the bottom UNICOM activated carbon filter chamber of filter chamber
Top, the bottom of the bottom UNICOM lime particle filter chamber of activated carbon filter chamber, the top UNICOM of lime particle filter chamber goes out
Wind passage.
More than three groups of water conservancy diversion swing arm set is vertically arranged along air intake direction in inlet air passage, the water conservancy diversion swing arm set includes
At least two water conservancy diversion swing arms, the setting height(from bottom) of the water conservancy diversion swing arm in each water conservancy diversion swing arm set are identical；Water conservancy diversion swing arm passes through mounting rod
On the inwall for installing inlet air passage；Water conservancy diversion swing arm connects mounting rod by motorized pulleys, and water conservancy diversion swing arm can be turned by motorized pulleys
It is dynamic；General mood hole is opened up on mounting rod；More than two cowling panels are set between inlet air passage and air inducing chamber, on the cowling panel
Open up rectification hole；The aperture of the rectification hole is 2-3mm.
The body of the sedimentation pipeline and water conservancy diversion diffusion admittance comprises at least the inflection point at a 90-120 degree angle.
" returning " font or spiral shape hydrojet coil pipe are set in the neutralization filter chamber, set hydrojet micro- on the hydrojet coil pipe
Hole, the aperture of the hydrojet micropore is 0.1-0.3mm；The liquid feeding end of hydrojet coil pipe connects neutralising fluid by neutralizer liquid feeding pump
Storehouse, the neutralising fluid in neutralising fluid storehouse can be neutralized in liquid liquid feeding pump suction hydrojet coil pipe, and is sprayed by hydrojet micropore；
Bottom with filter chamber in sets liquid storage tank.
As shown in figure 3, the filter pulp device also includes filter pulp elastic retainers, the filtering web is arranged on filter pulp elasticity
On fixator；Filter pulp elastic retainers include fixator cylinder, and fixator cylinder open at one end simultaneously sets block, fixator cylinder
Other end closing, extension spring is set in fixator cylinder, and one end of extension spring is connected the blind end bottom of device cylinder, extension spring
Other end connection expansion plate, expansion plate is arranged in fixator cylinder and stopped by block, and screw hole is installed on expansion plate,
The edge device cylinder that is fastened of filtering web is fixed on expansion plate after one week by tensioner screw.
As shown in figure 4, the bottom of the vent cabinet sets experimental facilities storage space, in the upper of experimental facilities storage space
Several grille strips are set respectively on top surface and bottom surface, grasping part is retained between adjacent grille strip；The grasping part
It is interior being capable of insertion space dividing plate.
As shown in figure 5, opening up vessel perforation on upper top surface between adjacent gate glazing bar, gas is interted in the vessel perforation
Body canal or liquid conduits, the upper end connection angle adjustable nozzle of the gas conduit or liquid conduits；The angle can
Nozzle is adjusted to be arranged on by nozzle angle adjuster in experiment cavity；The nozzle angle adjuster includes mounting seat, described
One end of arc torsional brace is installed by the first damping jointed shaft, the other end of arc torsional brace passes through the in mounting seat
Two damping jointed shaft connection angle adjustable nozzles；The adjustable angle nozzle can hover in any bending angle position, with side
Just the grafting arrangement of pipeline.
Vent cabinet described in the utility model, is not only able to provide more easily experiment condition, and can also more section
Rational processing waste gas is learned, makes experimentation more safely controllable, the personal safety of practical Protection personnel and health status,
In addition, rationally designing experimental assembly storage space, separated region is flexibly adjustable, makes the design more hommization of equipment.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of change.It is every without departing from the content of the technical scheme of the utility model, according to the technical essence of the utility model pair
Any simple modification, equivalent variations and the remodeling that above example is made, still fall within the protection model of technical solutions of the utility model
Enclose.
Claims (7)
- A kind of 1. special ventilation equipment in laboratory for preventing waste gas from accumulating, it is characterised in that：Including vent cabinet, the vent cabinet Top sets experimental box body, is set in the experimental box body and tests cavity, and the experiment cavity is spherical in shape；In the upper of experimental box body Portion sets ventilation equipment；The ventilation equipment include aspiration channel and inherent filtration device, one end UNICOM experiment chamber of the aspiration channel Body, the other end connection inherent filtration device of aspiration channel；Inherent filtration device can aspirate the gas in experiment cavity by aspiration channel；The bottom of the vent cabinet sets experimental facilities storage space, on the upper top surface and bottom surface of experimental facilities storage space Several grille strips are set respectively, grasping part is retained between adjacent grille strip；Being capable of insertion space in the grasping part Dividing plate.
- 2. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 1, it is characterised in that：In phase Vessel perforation is opened up on upper top surface between adjacent grid bar, interts gas conduit or liquid conduits, institute in the vessel perforation State the upper end connection angle adjustable nozzle of gas conduit or liquid conduits；The adjustable angle nozzle is adjusted by nozzle angle Device is arranged in experiment cavity；The nozzle angle adjuster includes mounting seat, passes through the first damping in the mounting seat Jointed shaft installs one end of arc torsional brace, and the other end of arc torsional brace can by the second damping jointed shaft connection angle Adjust nozzle；The adjustable angle nozzle can hover in any bending angle position.
- 3. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 2, it is characterised in that：It is described Inherent filtration device includes functional shell, set in the functional shell inlet air passage, air inducing chamber, sedimentation pipeline, cooling liquid filter chamber, Water conservancy diversion diffusion admittance, filter pulp filter chamber, neutralize filter chamber, activated carbon filter chamber, lime particle filter chamber and air-out passage；It is described Filter pulp device and tubaeform airflow commutating device are set in filter pulp filter chamber；Wherein, the lower end connection aspiration channel of inlet air passage, the upper end connection air inducing chamber of inlet air passage；Air inlet and air outlet are set on the air inducing chamber, air inducing wheel is set in air inducing intracavitary, the air inlet connection of air inducing chamber is inhaled Airduct, the upper end of the air outlet connection sedimentation pipeline of air inducing chamber；The bottom of the lower end insertion cooling liquid filter chamber of the sedimentation pipeline；The lower end of the top UNICOM water conservancy diversion diffusion admittance of the cooling liquid filter chamber, the upper end of water conservancy diversion diffusion admittance connect tubaeform gas Fairing is flowed, rectification screen cloth is set at the horn mouth of the tubaeform airflow commutating device, several are set on rectification screen cloth Rectification stomata；The front of rectification screen cloth and the filtering web of filter pulp device is oppositely arranged；Plane and filter cotton where rectification screen cloth Plane where net is parallel to each other and at intervals of 1-2cm；In the bottom UNICOM of filter pulp filter chamber and filter chamber top, neutralize filter chamber bottom UNICOM activated carbon filter chamber it is upper Portion, the bottom of the bottom UNICOM lime particle filter chamber of activated carbon filter chamber, the top UNICOM air-out of lime particle filter chamber are led to Road.
- 4. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 3, it is characterised in that：Entering More than three groups of water conservancy diversion swing arm set is vertically arranged along air intake direction in wind passage, the water conservancy diversion swing arm set includes at least two water conservancy diversion Swing arm, the setting height(from bottom) of the water conservancy diversion swing arm in each water conservancy diversion swing arm set are identical；Water conservancy diversion swing arm installs inlet air passage by mounting rod Inwall on；Water conservancy diversion swing arm connects mounting rod by motorized pulleys, and water conservancy diversion swing arm can be rotated by motorized pulleys；Opened on mounting rod If general mood hole；More than two cowling panels are set between inlet air passage and air inducing chamber, rectification hole is opened up on the cowling panel；Institute The aperture for stating rectification hole is 2-3mm.
- 5. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 4, it is characterised in that：It is described The body of sedimentation pipeline and water conservancy diversion diffusion admittance comprises at least the inflection point at a 90-120 degree angle.
- 6. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 5, it is characterised in that：It is described Neutralize and " returning " font or spiral shape hydrojet coil pipe are set in filter chamber, hydrojet micropore, the hydrojet are set on the hydrojet coil pipe The aperture of micropore is 0.1-0.3mm；The liquid feeding end of hydrojet coil pipe connects neutralising fluid storehouse, neutralising fluid by neutralizer liquid feeding pump Neutralising fluid in storehouse can be neutralized in liquid liquid feeding pump suction hydrojet coil pipe, and is sprayed by hydrojet micropore；In and filter The bottom of chamber sets liquid storage tank.
- 7. according to a kind of special ventilation equipment in laboratory for preventing waste gas from accumulating described in claim 6, it is characterised in that：It is described Filter pulp device also includes filter pulp elastic retainers, and the filtering web is arranged in filter pulp elastic retainers；Filter pulp flexible fastening Device includes fixator cylinder, and fixator cylinder open at one end simultaneously sets block, the other end closing of fixator cylinder, in fixator Extension spring is set in cylinder, and one end of extension spring is connected the blind end bottom of device cylinder, the other end connection expansion plate of extension spring, stretches Contracting plate is arranged in fixator cylinder and stopped by block, and screw hole is installed on expansion plate, and the edge winding for filtering web is solid Determine device cylinder to be fixed on expansion plate by tensioner screw after one week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704735.1U CN207126961U (en) | 2017-06-16 | 2017-06-16 | A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704735.1U CN207126961U (en) | 2017-06-16 | 2017-06-16 | A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207126961U true CN207126961U (en) | 2018-03-23 |
Family
ID=61632045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720704735.1U Expired - Fee Related CN207126961U (en) | 2017-06-16 | 2017-06-16 | A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207126961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701438A (en) * | 2020-06-24 | 2020-09-25 | 雷桃 | Gas processing device and cabinet type exhaust equipment |
-
2017
- 2017-06-16 CN CN201720704735.1U patent/CN207126961U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701438A (en) * | 2020-06-24 | 2020-09-25 | 雷桃 | Gas processing device and cabinet type exhaust equipment |
| CN111701438B (en) * | 2020-06-24 | 2021-07-06 | 江苏埃德伯格电气有限公司 | Gas processing device and cabinet type exhaust equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201049353Y (en) | Weld fume ventilating and purifying installation | |
| US7479170B1 (en) | Modular up-draft pressure pulse bag house | |
| CN207311976U (en) | Liquid filter bag is packed for dust removal workbench | |
| CN207126961U (en) | A kind of special ventilation equipment in laboratory for preventing waste gas from accumulating | |
| CN208743329U (en) | A kind of laboratory hood | |
| CN107052017A (en) | A kind of special ventilation equipment in Environment-friendlycorrosion-resistant corrosion-resistant type laboratory | |
| CN108889038A (en) | A kind of plume takes off white device | |
| CN204996803U (en) | Inside and outside benefit wind type fume chamber | |
| CN208372747U (en) | A kind of exhaust treatment system of painting workshop | |
| CN110215783A (en) | A kind of emission-control equipment using ultrasonic atomizer | |
| CN207329839U (en) | Cement car loading operation ventilating dust-arrester | |
| CN207527815U (en) | Displacement formula recycling ventilation group system | |
| CN105650703B (en) | Intelligent electric stove | |
| CN109351110A (en) | A kind of dust-extraction unit | |
| CN108826461A (en) | A kind of energy-saving ball blast room air purification exhaust system | |
| CN104048306B (en) | Energy-saving environmental-protection boiler exhaust emissions tower | |
| CN208927788U (en) | A kind of plume takes off white device | |
| CN207042162U (en) | A kind of part tightens assembling room dust arrester | |
| CN208205232U (en) | A kind of noiseless ecological form air purification device | |
| CN208145647U (en) | Stemness dust-filtering formula ventilation unit | |
| CN204563800U (en) | A kind of paint locker waste gas treatment cabinet | |
| CN105444236B (en) | Integrated kitchen range ventilator | |
| CN207103382U (en) | A kind of special ventilation equipment in inherent filtration formula laboratory | |
| CN106196204A (en) | Curve wind-discharging cooking fume exhauster | |
| CN110131830A (en) | Air supply duct system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20210616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |