CN207334831U - Smoke regulating device and cleaning system - Google Patents
Smoke regulating device and cleaning system Download PDFInfo
- Publication number
- CN207334831U CN207334831U CN201720886227.XU CN201720886227U CN207334831U CN 207334831 U CN207334831 U CN 207334831U CN 201720886227 U CN201720886227 U CN 201720886227U CN 207334831 U CN207334831 U CN 207334831U
- Authority
- CN
- China
- Prior art keywords
- smoke
- flue
- orifice plate
- regulating device
- cleaning system
- 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.)
- Active
Links
Landscapes
- Ventilation (AREA)
Abstract
The utility model is a kind of smoke regulating device and cleaning system, is related to cooking fume control equipment technical field, to solve the problems, such as that each floor kitchen ventilator smoke evacuation inequality designs in high residential building.The smoke regulating device includes being used to control the orifice plate by air quantity, orifice plate be arranged on each user be used for discharge fume by-pass flue in, one end of each by-pass flue is connected with the air passage of the kitchen ventilator of each user, and the other end is connected with common flue, and effective flow area at least two orifice plates is different.The cleaning system includes purification host and above-mentioned smoke regulating device.Smoke regulating device and cleaning system provided by the utility model are used to enable the oil smoke uniform discharge that each floor kitchen ventilator suctions out in high residential building, so as to alleviate the problem of smoke evacuation of low layer resident family is not smooth.
Description
Technical field
It the utility model is related to cooking fume control equipment technical field, more particularly to a kind of smoke regulating device and purification system
System.
Background technology
With rapid development of economy, more and more high residential buildings are rised sheer from level ground like the mushrooms after rain.In order to high level
House kitchen oil smoke carries out effective purified treatment, while the alien invasion of high residential building is reached certain aesthetic, leads to
Often need to set smoke shaft, purified with the kitchen fume to different floors and emission treatment.But due to floor compared with
More, the height of some houses can even reach 100m so that its smoke discharging pipe becomes very long, and there have been bottom resident family for this
Kitchen to roof smoke outlet ventilation distance and building with high, and the kitchen of top resident family to roof smoke outlet ventilation away from
From the phenomenon for then there was only 1-2m.
The huge difference of ventilation distance causes the difference of different floor kitchen fume flowing resistances, when each floor resident family makes
When being discharged fume with the kitchen ventilator of identical power, the oil smoke in man of low layer resident family needs to overcome huge on-way resistance just can be by oil
Cigarette is discharged from smoke discharging pipe, this has been resulted in same storied building, and low layer resident family exhaust smoke level is small and high-rise buildings exhaust smoke level is big shows
As occurring, this phenomenon is particularly evident when kitchen ventilator uses peak.In view of the above-mentioned problems, the use of some kitchen ventilator enterprises is done
Method is to be continuously increased the air quantity of kitchen ventilator, although this way can overcome certain on-way resistance, used in kitchen ventilator
In the case of low ebb, this way considerably increases the exhaust smoke level of user so that indoor cold air or hot gas are also together with oil
Cigarette is discharged, and not only waste of energy, can also cause noise pollution.
Utility model content
First purpose of the utility model is to provide a kind of smoke regulating device, to solve each floor in high residential building
The uneven technical problem of kitchen ventilator smoke evacuation.
Smoke regulating device provided by the utility model, including for controlling the orifice plate by air quantity, the orifice plate is set
In the by-pass flue that each user is used for smoke evacuation, one end of each by-pass flue is connected with the air passage of the kitchen ventilator of each user,
The other end is connected with common flue.
Effective flow area at least two orifice plates is different.
Further, along the direction for moving closer to purification host, effective flow area on the orifice plate is gradually reduced.
Further, the housing for fixing the orifice plate is further included.
The housing is the hollow cylindrical structure of both ends open, and the housing is installed in the by-pass flue, and described
Axis of the axis of housing parallel to the by-pass flue.
The orifice plate is installed on the enclosure interior, and the axis of the through flow hole of the orifice plate is parallel to the axis of the housing
Line.
Further, the peripheral ring of the housing is equipped with the shaft shoulder, the shaft shoulder by the housing be divided into the first mounting portion and
Second mounting portion.
First mounting portion is set on the by-pass flue, and the second mounting portion plugged and fixed is in the public cigarette
On the wall in road, and the shaft shoulder is connected on the common flue.
Each by-pass flue with the common flue is closed connects.
Further, the orifice plate includes a main through flow hole.
The main through flow hole is arranged on the center position of the orifice plate.
Further, multiple auxiliary through flow holes are further included.
Each auxiliary through-flow orifice ring is located at around the main through flow hole.
The beneficial effect that the utility model smoke regulating device is brought is：
By setting orifice plate in the by-pass flue that each user is used to discharge fume, wherein, one end of each by-pass flue and each use
The air passage connection of kitchen ventilator, the other end are connected with the common flue in house in the man of family, and the oil smoke that kitchen ventilator is suctioned out is through public affairs
Air flue emission is into atmospheric environment altogether.Orifice plate is used to control the air quantity into common flue, also, effective through-flow on each orifice plate
Area constantly increases with floor, is gradually reduced.
The smoke regulating device utilizes high low layer user by setting the different orifice plate of flow area in each by-pass flue
By the balance between the air quantity and on-way resistance of orifice plate, so that the kitchen ventilator for being pointed to different floors enters in common flue
Air quantity is controlled, and then the mesh that the smoke for making whole house difference number of plies user be discharged to common flue is more average
's.
The smoke regulating device is not only alleviated because of the huge difference of different floor ventilation distances to a certain extent, and is made
Into low layer resident family discharge fume not smooth phenomenon, moreover, also improve because the air quantity of increase kitchen ventilator merely and caused by it is indoor cold
The drawbacks of gas and hot gas are passively discharged, so as to save the energy, and reduces noise pollution.In addition, the smoke regulating device
Simple in structure, scheme is easily achieved, and cost is relatively low, and to realizing, the average of exhaust smoke level has weight at entire building different height position
Want meaning.
Second purpose of the utility model is to provide a kind of cleaning system, to solve each floor oil smoke in high residential building
The uneven technical problem of machine smoke evacuation.
Cleaning system provided by the utility model, including for carrying out the purification of purified treatment to the oil smoke in common flue
Host and above-mentioned smoke regulating device.
The purification host is arranged on the top of the common flue.
Further, it is provided with check-valves on each by-pass flue.
Further, the purification host includes being used for the control module for controlling the check-valves on off operating mode, the control
Molding block is connected with the switching signal of each kitchen ventilator.
Further, emergent smoke outlet is provided with the common flue, the emergent smoke outlet is arranged on described public
The top of flue.
The beneficial effect that the utility model cleaning system is brought is：
By setting purification host and above-mentioned smoke regulating device, wherein, purification host is arranged on the top of common flue,
Purified treatment is carried out for draining into the oil smoke in common flue to each user.Correspondingly, the cleaning system has above-mentioned smoke tune
The institute of regulating device is advantageous, and details are not described herein.
In addition, by setting purification host at the top of common flue, concentrate and purified treatment carried out to each user institute mist extractor,
And by the oil smoke discharge after purified treatment into atmospheric environment, effective processing to kitchen fume is not only realized, at the same it is also full
The foot aesthetic of high residential building.In addition, the cleaning system is simple in structure, scheme is easily achieved, and cost is relatively low, is had higher
Market economy value.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the utility model embodiment smoke regulating device；
Fig. 2 is the main structure diagram of smoke regulating device in Fig. 1；
Fig. 3 is the A-A schematic cross-sectional views of smoke regulating device in Fig. 2；
Fig. 4 is the main structure diagram of the utility model embodiment another kind smoke regulating device；
Fig. 5 is the structure diagram of the present embodiment cleaning system, wherein, common flue and by-pass flue are illustrated for section view；
Fig. 6 is the partial enlarged view at B in Fig. 5.
Icon：10- smoke regulating devices；20- kitchen ventilators；30- by-pass flues；40- check-valves；50- purifies host；60-
Common flue；70- meets an urgent need smoke outlet；80- induced draft plates；11- orifice plates；The first mounting portions of 12-；The second mounting portions of 13-；The 14- shaft shoulders.
Embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
The technical solution of type carries out clear, complete description.Obviously, described embodiment is only the part implementation of the utility model
Example, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making wound
All other embodiments obtained under the premise of the property made work, shall fall within the protection scope of the present invention.
, it is necessary to the orientation or position relationship of the instruction such as explanation, term " on ", " under " in the description of the utility model
It is to be based on orientation shown in the drawings or position relationship, it is only for easy to describe the utility model and simplify to describe, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as the limitation to the utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
It to be to be connected directly, can also be indirectly connected by intermediary, can be the connection inside two elements.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
As shown in Figure 1-Figure 3, a kind of smoke regulating device 10 is present embodiments provided, including for controlling by air quantity
Orifice plate 11, specifically, orifice plate 11 be arranged on each user be used for discharge fume by-pass flue 30 in.Wherein, the one of each by-pass flue 30
End is connected with the air passage of the kitchen ventilator 20 of each user, and the other end is connected with common flue 60.
The smoke regulating device 10 utilizes height by setting the different orifice plate 11 of flow area in each by-pass flue 30
Balance between air quantity and on-way resistance that layer user passes through orifice plate 11, so that the kitchen ventilator 20 for being pointed to different floors enters public affairs
The air quantity in flue 60 is controlled altogether, and then the smoke for making whole house difference number of plies user be discharged to common flue 60
More average purpose.
The smoke regulating device 10 is not only alleviated because of the huge difference of different floor ventilation distances to a certain extent, and
Caused by low layer resident family discharge fume not smooth phenomenon, moreover, also improve because the air quantity of increase kitchen ventilator 20 merely and caused by room
The drawbacks of interior cold air and hot gas are passively discharged, so as to save the energy, and reduces noise pollution.In addition, the smoke is adjusted
Device 10 is simple in structure, and scheme is easily achieved, and cost is relatively low, and to realizing, exhaust smoke level is averaged at entire building different height position
It is of great significance.
In the present embodiment, along the direction for moving closer to purification host 50, effective flow area on orifice plate 11 is gradually reduced.
Wherein, purification host 50 can be arranged on the top of common flue 60.At this time, the orifice plate 11 being arranged in house lower level leads to
Flow area is larger, to increase the exhaust smoke level of low layer user；And the flow area for being arranged on the orifice plate 11 in house higher level is smaller,
To reduce the exhaust smoke level of high-level user, so that the air quantity and on-way resistance that pass through orifice plate 11 using high low layer user by-pass flue 30
Between balance so that the smoke that whole house difference floor user discharges to common flue 60 is more average.
Continue referring to Fig. 1-Fig. 3, in the present embodiment, which can also include being used for fixed orifice plate 11
Housing.Specifically, housing can be the hollow cylindrical structure of both ends open, housing is installed in by-pass flue 30, and housing
Axis parallel to by-pass flue 30 axis set.Orifice plate 11 is installed inside housings, and the axis of the through flow hole of orifice plate 11
Set parallel to the axis of housing.
It is parallel with the axis of by-pass flue 30 through-flow by being set on orifice plate 11 when oil smoke passes through orifice plate 11
Hole so that oil smoke can drain into common flue 60 within the shortest time, so as to substantially increase to oil smoke in each user kitchen
Purification efficiency.
Continue referring to Fig. 3, in the present embodiment, the peripheral ring of housing is equipped with the shaft shoulder 14, and the above-mentioned shaft shoulder 14 is by housing point
For the first mounting portion 12 and the second mounting portion 13.Specifically, as shown in fig. 6, in the present embodiment, the first mounting portion 12 is set in point
On branch flue 30,13 plugged and fixed of the second mounting portion is on the wall of common flue 60, and its shaft shoulder 14 is connected to common flue
On 60.Also, each by-pass flue 30 with common flue 60 is closed connects.
, can be by smoke regulating device 10 from 60 He of common flue when needing to be adjusted the flow area of orifice plate 11
Pulled down in by-pass flue 30, and smoke regulating device 10 to be replaced be installed between common flue 60 and by-pass flue 30,
So far, you can the adjustment to 11 flow area of orifice plate is realized, to meet requirement.Such setting form so that this implementation
Smoke regulating device 10 in example possesses certain exchange performance, when the exhaust smoke level of each user is unable to meet demand, only passes through
Replace the smoke regulating device 10 of different flow areas, can realize the adjustment to exhaust smoke level, it is very convenient, and replacement cost compared with
It is low.
Continue referring to Fig. 1, in the present embodiment, orifice plate 11 can include a main through flow hole, and at this time, orifice plate 11 is single hole
Orifice plate.Specifically, main through flow hole can be arranged on the center position of orifice plate 11.
It should be noted that in the present embodiment, orifice plate 11 can be the setting form of above-mentioned single hole orifice plate, but not only office
It is limited to this, other setting forms, well plate format as shown in Figure 4 can also be used.Specifically, orifice plate 11 can include one
Main through flow hole and multiple auxiliary through flow holes, wherein, main through flow hole is arranged on the center position of orifice plate 11, and each auxiliary through-flow orifice ring is located at
Around main through flow hole, at this time, orifice plate 11 is multi-hole orifice.As long as it can be realized by the orifice plate 11 of this set form
Circulation of the oil smoke from by-pass flue 30 to common flue 60.
Continue referring to Fig. 4, in the present embodiment, each auxiliary through flow hole is circumferentially uniformly arranged around main through flow hole.So
Setting so that oil smoke can be more uniformly across orifice plate 11, and drains into common flue 60.
In addition, when needing to reduce the flow area of orifice plate 11, can be by the way that some through flow holes in multi-hole orifice be blocked up
Plug, to prevent oil smoke by so as to fulfill the purpose adjusted to the flow area of orifice plate 11.
As shown in figure 5, the present embodiment additionally provides a kind of cleaning system, which includes being used for common flue 60
In oil smoke carry out purified treatment purification host 50 and above-mentioned smoke regulating device 10, wherein, purification host 50 be arranged on public affairs
The top of flue 60 altogether.
Correspondingly, the cleaning system has, the institute of above-mentioned smoke regulating device 10 is advantageous, and details are not described herein.
In addition, by setting purification host 50 at the top of common flue 60, concentrate and each user institute mist extractor is purified
Processing, and by the oil smoke discharge after purified treatment into atmospheric environment, effective processing to kitchen fume is not only realized, at the same time
Also the aesthetic of high residential building is met.In addition, the cleaning system is simple in structure, scheme is easily achieved, and cost is relatively low, is had
Higher market economy value.
Continue referring to Fig. 5, in the present embodiment, check-valves 40 can be set on each by-pass flue 30.When using kitchen ventilator
When 20, check-valves 40 is opened, and the oil smoke that kitchen ventilator 20 is discharged is successively through by-pass flue 30, smoke regulating device 10, common flue
60 are emitted into air with purification host 50.When kitchen ventilator 20 does not work, check-valves 40 is closed.The setting of check-valves 40, makes
Host 50 must be purified only to there is the kitchen ventilator 20 of smoke evacuation demand to carry out purified treatment, greatly reduce the work work(of purification host 50
Rate, and improve purification efficiency of the purification host 50 to oil smoke in common flue 60.In addition, work as kitchen ventilator 20 when not used, non-return
Valve 40 is closed, and the taint of odour phenomenon of kitchen ventilator 20 is also reduced to a certain extent, so as to further increase this reality
Apply the functional reliability of a cleaning system.
In the present embodiment, purification host 50 can include being used for the control module for controlling 40 on off operating mode of check-valves, specifically
, control module is connected with the switching signal of each kitchen ventilator 20.
When user needs to use kitchen ventilator 20, open kitchen ventilator 20 switch, at this time, switch by signal output to and its
In the control module of signal connection, meanwhile, control module handles the starting-up signal detected, and Continuity signal is exported
To check-valves 40, to control check-valves 40 to open, automatically controlled so as to fulfill to 40 on off operating mode of check-valves.
By setting the signal between switch, control module and the check-valves 40 of kitchen ventilator 20 to connect, realize to non-return
40 on off operating mode of valve automatically controls, so as to provide convenience for the use of user.
Continue referring to Fig. 5, in the present embodiment, emergent smoke outlet 70 can also be set on common flue 60.Specifically, should
Anxious smoke outlet 70 is arranged on the top of common flue 60.
By setting emergent smoke outlet 70, when purifying 50 operational failure of host, smoke evacuation processing can not be normally carried out, meet an urgent need
Smoke outlet 70 is exhausted the oil smoke for keep nature exhaust unimpeded, making to be pooled in common flue 60 and passes through emergent smoke evacuation automatically
Mouthfuls 70 are emitted into atmospheric environment, avoid to a certain extent because purification host 50 fails and caused by kitchen ventilator 20 discharge fume not
Smooth and taint of odour situation.Moreover, emergent smoke outlet 70 to be arranged on to the top of common flue 60, continuous using air-flow rises,
The oil smoke in common flue 60 is emitted into as early as possible in atmospheric environment, and will not gather in common flue 60, even return
Flow in each kitchen ventilator 20, so as to substantially increase the functional reliability of the present embodiment cleaning system.
Continue referring to Fig. 5, in the present embodiment, at each air inlet position on common flue 60, air inducing can also be set
Plate 80.Specifically, flow direction of the induced draft plate 80 towards oil smoke in common flue 60 is obliquely installed, and the section of induced draft plate 80
Shape can be arc., can be by the oil smoke entered from 60 each air inlet of common flue at the first time by setting induced draft plate 80
Discharged to the top of common flue 60, smoke exhaust efficiency is substantially increased, so as to further increase the present embodiment cleaning system
Functional reliability.
It should be noted that in the present embodiment, the shape of cross section of common flue 60 and by-pass flue 30 can be circle,
But this is not limited solely to, the flue form of other shape of cross sections can also be used, such as：Square and rectangle etc., and and cigarette
The housing cross-sectional shape of quantity regulating device 10 matches.As long as it can be realized by the flue of this cross-sectional form
Closed circulation of the oil smoke in by-pass flue 30, smoke regulating device 10 and common flue 60.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify the technical solution described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
The scope of technical solution.
Claims (10)
1. a kind of smoke regulating device, it is characterised in that including for controlling the orifice plate (11) by air quantity, the orifice plate (11)
Be arranged on each user be used for discharge fume by-pass flue (30) in, one end of each by-pass flue (30) and the kitchen ventilator of each user
(20) air passage connection, the other end are connected with common flue (60)；
Effective flow area at least two orifice plates (11) is different.
2. smoke regulating device according to claim 1, it is characterised in that along the side for moving closer to purification host (50)
To effective flow area on the orifice plate (11) is gradually reduced.
3. smoke regulating device according to claim 1, it is characterised in that further include for fixing the orifice plate (11)
Housing；
The housing is the hollow cylindrical structure of both ends open, and the housing is installed in the by-pass flue (30), and described
Axis of the axis of housing parallel to the by-pass flue (30)；
The orifice plate (11) is installed on the enclosure interior, and the axis of the through flow hole of the orifice plate (11) is parallel to the housing
Axis.
4. smoke regulating device according to claim 3, it is characterised in that the peripheral ring of the housing is equipped with the shaft shoulder
(14), the housing is divided into the first mounting portion (12) and the second mounting portion (13) by the shaft shoulder (14)；
First mounting portion (12) is set on the by-pass flue (30), and the second mounting portion (13) plugged and fixed is in institute
On the wall for stating common flue (60), and the shaft shoulder (14) is connected on the common flue (60)；
Each by-pass flue (30) with the common flue (60) is closed connects.
5. according to claim 1-4 any one of them smoke regulating devices, it is characterised in that the orifice plate (11) includes one
Main through flow hole；
The main through flow hole is arranged on the center position of the orifice plate (11).
6. smoke regulating device according to claim 5, it is characterised in that further include multiple auxiliary through flow holes；
Each auxiliary through-flow orifice ring is located at around the main through flow hole.
7. a kind of cleaning system, it is characterised in that including for carrying out the net of purified treatment to the oil smoke in common flue (60)
Change host (50) and claim 1-6 any one of them smoke regulating devices (10)；
The purification host (50) is arranged on the top of the common flue (60).
8. cleaning system according to claim 7, it is characterised in that be provided with check-valves on each by-pass flue (30)
(40)。
9. cleaning system according to claim 8, it is characterised in that the purification host (50) includes being used to control described
The control module of check-valves (40) on off operating mode, the control module are connected with the switching signal of each kitchen ventilator (20).
10. cleaning system according to claim 9, it is characterised in that be provided with emergent row on the common flue (60)
Mouth (70), the emergent smoke outlet (70) are arranged on the top of the common flue (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720886227.XU CN207334831U (en) | 2017-07-20 | 2017-07-20 | Smoke regulating device and cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720886227.XU CN207334831U (en) | 2017-07-20 | 2017-07-20 | Smoke regulating device and cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207334831U true CN207334831U (en) | 2018-05-08 |
Family
ID=62377238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720886227.XU Active CN207334831U (en) | 2017-07-20 | 2017-07-20 | Smoke regulating device and cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207334831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738806A (en) * | 2022-03-22 | 2022-07-12 | 杭州老板电器股份有限公司 | Central range hood system and control method thereof and resistance coefficient determination method |
-
2017
- 2017-07-20 CN CN201720886227.XU patent/CN207334831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738806A (en) * | 2022-03-22 | 2022-07-12 | 杭州老板电器股份有限公司 | Central range hood system and control method thereof and resistance coefficient determination method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204256566U (en) | Mist extractor control system concentrated by apartment with hotel-styled services | |
| CN206919105U (en) | Central purge system | |
| CN207780570U (en) | Environment quality intelligence control system for transformer station | |
| CN207610327U (en) | air circulation system | |
| CN207334831U (en) | Smoke regulating device and cleaning system | |
| CN203980382U (en) | A kind of smoke exhaust ventilator | |
| CN108344093A (en) | A kind of engineering industry energy-saving ventilation system | |
| CN105042658A (en) | Swirling flow entrainment range hood with contraction pipeline | |
| CN106760404A (en) | A kind of fume extractor for substituting underground garage Ventilator Room | |
| CN203704095U (en) | Integrated oil fume absorbing and exhausting system for building | |
| CN207162662U (en) | Freeze range hood in a kind of kitchen | |
| CN207279731U (en) | A kind of range hood | |
| CN204757142U (en) | Install in outdoor new fan | |
| CN205935554U (en) | Fire prevention water conservancy diversion formula flue and difunctional exhaust system | |
| CN203052796U (en) | Washable supplementing blowing device for smoke exhaust ventilator | |
| CN205746988U (en) | Log cabin steel plate fireplace | |
| CN205825283U (en) | A kind of high efficiency compact fresh air purifying intelligence system | |
| CN210951731U (en) | Automatically cleaning new trend air inlet system | |
| CN204551660U (en) | Foul smell separator | |
| CN209353796U (en) | A kind of roof type integration fume extractor | |
| CN204313456U (en) | One enters the quiet gas skirt of the adjustable frequency conversion of air draft | |
| CN208269343U (en) | A kind of green pipe ventilated equipment for building | |
| CN207674637U (en) | It blows to a kind of exposed type the new blower fan system in center | |
| CN202868801U (en) | Axial-flow type range hood with side draught type double-suction-port structure | |
| CN220958778U (en) | Floor smoking extinguishing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |