CN207335057U - A kind of double filtration fresh air system - Google Patents
A kind of double filtration fresh air system Download PDFInfo
- Publication number
- CN207335057U CN207335057U CN201720649670.5U CN201720649670U CN207335057U CN 207335057 U CN207335057 U CN 207335057U CN 201720649670 U CN201720649670 U CN 201720649670U CN 207335057 U CN207335057 U CN 207335057U
- Authority
- CN
- China
- Prior art keywords
- outdoor
- air
- filter assemblies
- indoor
- blast pipe
- 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
- 238000001914 filtration Methods 0.000 title claims abstract description 87
- 230000000712 assembly Effects 0.000 claims abstract description 71
- 239000007787 solid Substances 0.000 claims description 12
- 239000002341 toxic gas Substances 0.000 claims description 7
- 230000001954 sterilising Effects 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 210000000887 Face Anatomy 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000505 pernicious Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model belongs to heating and ventilating equipment technical field, discloses a kind of double filtration fresh air system, including:Babinet, Total heat exchange core, main filter assemblies and secondary filter assemblies;One end of babinet is provided with outdoor blast pipe and outdoor discharge pipe, and air-out blower fan is connected with the inner port of outdoor discharge pipe, and the other end of babinet is provided with indoor blast pipe and indoor discharge pipe, air intake blower fan is connected with the inner port of indoor blast pipe;Total heat exchange core is provided with babinet;Main filter assemblies, which separate, to be disposed in the outdoor between blast pipe and outdoor air inlet;Secondary filter assemblies, which separate, to be disposed in the interior between the inner port of blast pipe and air intake blower fan.The utility model proposes double filtration fresh air system, its is simple in structure, possesses double filtering system, can refilter the air of secondary pollution, can improve the cleannes of room air.
Description
Technical field
The utility model belongs to heating and ventilating equipment technical field, more particularly to a kind of double filtration fresh air system.
Background technology
With the decline of air quality in recent years, fresh air system is received more and more attention and paid attention to, it is mainly used in
Public building, family's building and industrial building, for existing fresh air system after long-term work, its fillter section can accumulate dust, mistake
The dust secondary pollution that air after filter can be accumulated, can cause the cleannes of room air to decline.
Utility model content
To solve problem above, the utility model proposes a kind of double filtration fresh air system, its is simple in structure, possesses dual
Filtration system, the air of secondary pollution can be refiltered, can improve the cleannes of room air.
In order to achieve the above object, the utility model is solved using following technical scheme.
A kind of double filtration fresh air system, including:Babinet, Total heat exchange core, main filter assemblies and secondary filter assemblies;It is described
One end of babinet is provided with outdoor blast pipe and outdoor discharge pipe, and outlet air wind is connected with the inner port of the outdoor discharge pipe
Machine, the other end of the babinet are provided with indoor blast pipe and indoor discharge pipe, are connected at the inner port of the interior blast pipe
There is air intake blower fan;The Total heat exchange core is arranged in the babinet, and outdoor air inlet, room are provided with the Total heat exchange core
Interior air inlet, outdoor air outlet and indoor air outlet, the outdoor air inlet and the indoor air inlet are interconnected, the room
Outgoing tuyere and the indoor air outlet are interconnected, and the inner port of the outdoor blast pipe is connected with the outdoor air inlet
Logical, the inner port of the interior blast pipe is connected with the indoor air inlet, the inner port of the outdoor discharge pipe with it is described
Outdoor air outlet is connected, and the inner port of the interior discharge pipe is connected with the indoor air outlet;The main filter assemblies
Separation is arranged between the outdoor blast pipe and the outdoor air inlet;The pair filter assemblies, which separate, is arranged on the interior
Between the inner port of air inlet and the indoor blast pipe.
Double filtration fresh air system according to the present utility model, one end of babinet are fixedly connected with outdoor blast pipe and outdoor
Discharge pipe, outdoor blast pipe are used for outdoor air importing fresh air system, are used for by outdoor discharge pipe by the sky of fresh air system
Conductance enters outdoor;Indoor blast pipe and indoor discharge pipe are fixedly connected with the other end of babinet, indoor blast pipe can be by fresh air
Air after system filtering imports interior, room air can be imported fresh air system by indoor discharge pipe;In outdoor discharge pipe
Inner port at be connected with air-out blower fan, when air-out blower fan rotates, form negative pressure in indoor discharge pipe, room air can be passed through
Indoor discharge pipe enters fresh air system, can also improve air velocity, reduce the time needed for air discharge, indoors blast pipe
Air intake blower fan is connected with inner port, when air intake blower fan rotates, negative pressure is formed in outdoor blast pipe, outdoor air can be made to pass through room
External air inlet pipe enters fresh air system.Total heat exchange core is disposed with babinet, outdoor air is entered by outdoor blast pipe, through room
External air inlet port enters Total heat exchange core, and after heat exchange, air gets in blast pipe through indoor air inlet;Room air leads to
Cross indoor discharge pipe and import fresh air system, enter Total heat exchange core through indoor air outlet, after heat exchange, air is through outdoor
Air outlet enters outdoor discharge pipe, by installing Total heat exchange core, can make the air themperature of outdoor importing tend to indoor temperature, carry
High degree of comfort.Main filter assemblies are disposed between the inner port and outdoor air inlet of outdoor blast pipe, can be indoor to importing
Air carry out first order filtering, filter out import air in dust and pernicious gas;Air inlet and indoor inlet air indoors
Secondary filter assemblies are provided between the port of pipe, second level mistake can be carried out to air after the first-level filtering after Total heat exchange core
Filter, air is directly entered interior after the dust secondary pollution in Total heat exchange core after preventing first-level filtering, can improve room air
Cleannes.The double filtration fresh air system of the utility model, it is simple in structure, there is double filtering system, can be indoor to importing
Air carry out double-filtration, air is directly entered interior after preventing the filter of secondary pollution, can improve the cleannes of room air.
As preference, the case between the outdoor inner port of blast pipe and the outdoor air inlet of the Total heat exchange core
A pair of first guide groove is provided with body sidewall, slidable fit has the first filtering frame, the main filter assemblies in first guide groove
It is fixed on first filtering frame, the first filter assemblies replacement port, first filtering is provided with the side wall of the babinet
First guide groove described in unit replacement mouth face.
Double filtration fresh air system according to the present utility model, main filter assemblies are fixed on the first filtering frame, the first mistake
Filter stand is slidedly assemblied in the first guide groove through the first filter assemblies replacement port, it is necessary to during more change owner filter assemblies, by the first mistake
Filter stand is extracted out from the first guide groove, removes old main filter assemblies, and new main filter assemblies are fixed on the first filtering frame, will
First filtering frame is turned back in the first guide groove, can save the time of more change owner filter assemblies, convenient operation.
As preference, the inner port of the indoor air inlet on the Total heat exchange core and the indoor blast pipe it
Between babinet two side walls on be provided with a pair of second guide groove, slidable fit has the second filtering frame in second guide groove, described
Secondary filter assemblies are fixed on second filtering frame, and the second filter assemblies replacement port, institute are provided with the side wall of the babinet
State the second guide groove described in the second filter assemblies replacement port face.
Double filtration fresh air system according to the present utility model, secondary filter assemblies are fixed on the second filtering frame, the second mistake
Filter stand is slidedly assemblied in the second guide groove through the second filter assemblies replacement port, it is necessary to when replacing secondary filter assemblies, by the second mistake
Filter stand is extracted out from the second guide groove, removes old secondary filter assemblies, and new secondary filter assemblies are fixed on the second filtering frame, will
Second filtering frame is turned back in the second guide groove, can save the time for replacing secondary filter assemblies, convenient operation.
As preference, the inner port of the interior blast pipe is connected with a port of the air intake blower fan, it is described
Second guide groove is located between the indoor air inlet on the port and Total heat exchange core of the air intake blower fan.
Double filtration fresh air system according to the present utility model, the inner port of the air outlet of air intake blower fan and indoor blast pipe
Connection, the second guide groove are installed between air intake blower fan air inlet and indoor air inlet.
As preference, the main filter assemblies include solid particulate matter filter layer, sterilization filtering layer and toxic gas filtering layer
One or more of.
Double filtration fresh air system according to the present utility model, main filter assemblies are used for carrying out the to importing indoor air
By-pass filtration, can be according to the different filter layers stressed of different selections of use environment, and installation solid particulate matter filter layer can mistake
Filter solid particulate matter, installation sterilization filtering layer can kill corresponding bacterium in air, and installation toxic gas filtering layer can filter sky
Corresponding toxic gas in gas, in order to reach preferable filter effect, multiple filter layers can be used cooperatively.
As preference, the pair filter assemblies include at least solid particulate matter filter layer.
Double filtration fresh air system according to the present utility model, secondary filter assemblies carry out the second level to importing indoor air
Filtering, was mainly the dust in air filtering, and prevented the air after a filter to be directly entered interior after dust pollution, so secondary mistake
Filter component include at least solid particulate matter filter layer, in order to improve filter effect, also can a variety of filter layers be used cooperatively.
Brief description of the drawings
The utility model is described in further details with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of overlooking the structure diagram of embodiment of double filtration fresh air system of the utility model.
In Fig. 1:1 babinet;Blast pipe outside Room 2;Discharge pipe outside Room 3;4 air-out blower fans;Blast pipe in Room 5;Outlet air in Room 6
Pipe;7 air intake blower fans;8 Total heat exchange cores;801 outdoor air inlets;802 indoor air inlets;Air outlet outside Room 803;Go out in Room 804
Air port;9 main filter assemblies;10 secondary filter assemblies;11 first guide grooves;12 first filtering frames;13 first filter assemblies replacement ports;14
Second guide groove;15 second filtering frames;16 second filter assemblies replacement ports.
Embodiment
With reference to figure 1, the embodiment of the utility model provides a kind of double filtration fresh air system, including:Babinet 1, full heat are handed over
Change core 8, main filter assemblies 9 and secondary filter assemblies 10;One end of babinet 1 is provided with outdoor blast pipe 2 and outdoor discharge pipe 3, room
Air-out blower fan 4 is connected with the inner port of outer discharge pipe 3, the other end of babinet 1 is provided with indoor blast pipe 5 and indoor inlet/outlet pipe
6, air intake blower fan 7 is connected with the inner port of indoor blast pipe 5;Total heat exchange core 8 is arranged in babinet 1, on Total heat exchange core 8
It is provided with outdoor air inlet 801, indoor air inlet 802, outdoor air outlet 803 and indoor air outlet 804, outdoor air inlet 801
Be interconnected with indoor air inlet 802, outdoor air outlet 803 and indoor air outlet 804 are interconnected, outdoor blast pipe 2 it is interior
Port is connected with outdoor air inlet 801, and the inner port of indoor blast pipe 5 is connected with indoor air inlet 802, outdoor discharge pipe
3 inner port is connected with outdoor air outlet 803, and the inner port of indoor inlet/outlet pipe 6 is connected with indoor air outlet 804;Main mistake
Filter component 9, which separates, to be disposed in the outdoor between blast pipe 2 and outdoor air inlet 801;Secondary filter assemblies 10 separate be disposed in the interior into
Between the inner port of air port 802 and the indoor blast pipe 5.
In the embodiment above, one end of babinet 1 is fixedly connected with outdoor blast pipe 2 and outdoor discharge pipe 3, outdoor inlet air
Pipe 2 is used for outdoor air importing fresh air system, is used for importing the air of fresh air system by outdoor discharge pipe 3 outdoor;
The other end of babinet 1 is fixedly connected with indoor blast pipe 5 and indoor inlet/outlet pipe 6, after indoor blast pipe 5 can filter fresh air system
Air import indoor, room air can be imported by fresh air system by indoor inlet/outlet pipe 6;In the inner port of outdoor discharge pipe 3
Place is connected with air-out blower fan 4, when air-out blower fan 4 rotates, forms negative pressure in indoor inlet/outlet pipe 6, room air can be made to pass through interior
Inlet/outlet pipe 6 enters fresh air system, can also improve air velocity, reduces the time needed for air discharge, blast pipe 5 is interior indoors
Air intake blower fan 7 is connected with port, when air intake blower fan 7 rotates, negative pressure is formed in outdoor blast pipe 2, outdoor air can be passed through
Outdoor blast pipe 2 enters fresh air system.Total heat exchange core 8 is disposed with babinet 1, outdoor air is entered by outdoor blast pipe 2,
Enter Total heat exchange core 8 through outdoor air inlet 801, after heat exchange, air gets in inlet air through indoor air inlet 802
Pipe 5;Room air imports fresh air system by indoor inlet/outlet pipe 6, enters Total heat exchange core 8, heat through indoor air outlet 804
After exchange, air passes through outdoor air outlet 803 to enter outdoor discharge pipe 3, by installing Total heat exchange core 8, can make outdoor importing
Air themperature tend to indoor temperature, improve comfort level.The cloth between the inner port and outdoor air inlet 801 of outdoor blast pipe 2
Main filter assemblies 9 are equipped with, first order filtering can be carried out to importing indoor air, the dust imported in air is filtered out and have
Evil gas;Secondary filter assemblies 10 are provided between the inner port of blast pipe 5 and indoor air inlet 8 indoors, can be to by full heat
Air carries out second level filtering after exchanging the first-level filtering after core 8, and air is by the dust two in Total heat exchange core 8 after preventing first-level filtering
Interior is directly entered after secondary pollution, the cleannes of room air can be improved.The double filtration fresh air system of the utility model, structure
Simply, there is double filtering system, double-filtration can be carried out to importing indoor air, air is straight after preventing the filter of secondary pollution
Connect and get in, the cleannes of room air can be improved.
With reference to figure 1, one embodiment according to the present utility model, inner port and the Total heat exchange core 8 of outdoor blast pipe 2
A pair of first guide groove 11 is provided with 1 side wall of babinet between outdoor air inlet 801, slidable fit has first in the first guide groove 11
Filtering frame 12, main filter assemblies 9 are fixed on the first filtering frame 12, and the replacement of the first filter assemblies is provided with the side wall of babinet 1
Mouth 13,13 the first guide groove of face 11 of the first filter assemblies replacement port.
In the embodiment above, main filter assemblies 9 are fixed on the first filtering frame 12, and the first filtering frame 12 passes through the first mistake
Filter unit replacement mouth 13 is slidedly assemblied in the first guide groove 11, it is necessary to during more change owner filter assemblies 9, by the first filtering frame 12 from the
Extracted out in one guide groove 11, remove old main filter assemblies 9, new main filter assemblies 9 are fixed on the first filtering frame 12, by
One filtering frame 12 is turned back in the first guide groove 11, can save the time of more change owner filter assemblies 9, convenient operation.
With reference to figure 1, one embodiment according to the present utility model, indoor air inlet 802 on Total heat exchange core 8 with it is described
A pair of second guide groove 14 is provided with babinet two side walls between the inner port of indoor blast pipe 5, is slided in the second guide groove 14
The second filtering frame 15 is equipped with, secondary filter assemblies 10 are fixed on the second filtering frame 15, and the second mistake is provided with the side wall of babinet 1
Filter unit replacement mouth 16,16 the second guide groove of face 14 of the second filter assemblies replacement port.
In the embodiment above, secondary filter assemblies 10 are fixed on the second filtering frame 15, and the second filtering frame 15 passes through second
Filter assemblies replacement port 16 is slidedly assemblied in the second guide groove 14, it is necessary to when replacing secondary filter assemblies 10, by the second filtering frame 15
Extracted out from the second guide groove 14, remove old secondary filter assemblies 10, new secondary filter assemblies 10 are fixed on the second filtering frame 15
On, the second filtering frame 15 is turned back in the second guide groove 14, the time for replacing secondary filter assemblies 10 can be saved, convenient operation.
With reference to figure 1, one embodiment according to the present utility model, the inner port of indoor blast pipe 5 and the one of air intake blower fan 7
A port is connected, and the second guide groove 14 is located between the indoor air inlet 802 on the port and Total heat exchange core 8 of air intake blower fan 7.
In the embodiment above, the air outlet of air intake blower fan 7 is connected with the inner port of indoor blast pipe 5, the second guide groove 14
Between the air inlet and indoor air inlet 802 of air intake blower fan 7.
With reference to figure 1, one embodiment according to the present utility model, main filter assemblies 9 include solid particulate matter filter layer, kill
One or more of bacterium filtering layer and toxic gas filtering layer.
In the embodiment above, main filter assemblies 9 are used for carrying out first order filtering to importing indoor air, can be according to making
With the different filter layers stressed of different selections of environment, installation solid particulate matter filter layer can be installed with filtering solid particles thing
Sterilization filtering layer can kill corresponding bacterium in air, and installation toxic gas filtering layer can be crossed poison gas accordingly in air filtering
Body, in order to reach preferable filter effect, multiple filter layers can be used cooperatively.
With reference to figure 1, one embodiment according to the present utility model, secondary filter assemblies 10 are filtered including at least solid particulate matter
Layer.
In the embodiment above, secondary filter assemblies 10 carry out second level filtering to importing indoor air, mainly filter
Dust in air, prevents the air after a filter to be directly entered interior after dust pollution, so secondary filter assemblies 10 at least wrap
Include solid particulate matter filter layer, in order to improve filter effect, also can a variety of filter layers be used cooperatively.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
New spirit and scope.If in this way, these modifications and variations of the utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these modification and variations.
Claims (6)
- A kind of 1. double filtration fresh air system, it is characterised in that including:Babinet (1), one end of the babinet (1) are provided with outdoor blast pipe (2) and outdoor discharge pipe (3), the outdoor outlet air Manage and be connected with air-out blower fan (4) at the inner port of (3), the other end of the babinet (1) is provided with indoor blast pipe (5) and interior Discharge pipe (6), it is described interior blast pipe (5) inner port at be connected with air intake blower fan (7);Total heat exchange core (8), the Total heat exchange core (8) are arranged in the babinet (1), are set on the Total heat exchange core (8) It is equipped with outdoor air inlet (801), indoor air inlet (802), outdoor air outlet (803) and indoor air outlet (804), the outdoor Air inlet (801) and the indoor air inlet (802) are interconnected, the outdoor air outlet (803) and the indoor air outlet (804) be interconnected, it is described outdoor blast pipe (2) inner port be connected with the outdoor air inlet (801), it is described interior into The inner port of air hose (5) is connected with the indoor air inlet (802), the inner port of the outdoor discharge pipe (3) and the room Outgoing tuyere (803) is connected, and the inner port of the interior discharge pipe (6) is connected with the indoor air outlet (804);Main filter assemblies (9) and secondary filter assemblies (10), the main filter assemblies (9), which separate, is arranged on the outdoor blast pipe (2) between the outdoor air inlet (801);The pair filter assemblies (10), which separate, is arranged on the indoor air inlet (802) Between the inner port of the indoor blast pipe (5).
- 2. double filtration fresh air system according to claim 1, it is characterised in that the inner of the outdoor blast pipe (2) A pair of first guide groove is provided with babinet (1) side wall between mouth and the outdoor air inlet (801) of the Total heat exchange core (8) (11), slidable fit has the first filtering frame (12) in first guide groove (11), and the main filter assemblies (9) are fixed on described On one filtering frame (12), the first filter assemblies replacement port (13), the first filtering group are provided with the side wall of the babinet (1) First guide groove (11) described in part replacement port (13) face.
- 3. double filtration fresh air system according to claim 1, it is characterised in that the institute on the Total heat exchange core (8) State and a pair of the is provided with the babinet two side walls between the inner port of indoor air inlet (802) and the indoor blast pipe (5) Two guide grooves (14), slidable fit has the second filtering frame (15) in second guide groove (14), and the pair filter assemblies (10) are fixed On second filtering frame (15), the second filter assemblies replacement port (16) is provided with the side wall of the babinet (1), described Second guide groove (14) described in two filter assemblies replacement port (16) faces.
- 4. double filtration fresh air system according to claim 3, it is characterised in that the inner of the interior blast pipe (5) Mouth is connected with a port of the air intake blower fan (7), and second guide groove (14) is located at the port of the air intake blower fan (7) Between the indoor air inlet (802) on Total heat exchange core (8).
- 5. double filtration fresh air system according to any one of claim 1 to 4, it is characterised in that the main filtering group Part (9) includes solid particulate matter filter layer, sterilization one or more of filtering layer and toxic gas filtering layer.
- 6. double filtration fresh air system according to claim 4, it is characterised in that the pair filter assemblies (10) are at least wrapped Include solid particulate matter filter layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720649670.5U CN207335057U (en) | 2017-06-06 | 2017-06-06 | A kind of double filtration fresh air system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720649670.5U CN207335057U (en) | 2017-06-06 | 2017-06-06 | A kind of double filtration fresh air system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207335057U true CN207335057U (en) | 2018-05-08 |
Family
ID=62426322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720649670.5U Expired - Fee Related CN207335057U (en) | 2017-06-06 | 2017-06-06 | A kind of double filtration fresh air system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207335057U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111829128A (en) * | 2020-07-07 | 2020-10-27 | 重庆科技学院 | Fresh air system with sterilization and disinfection functions |
CN112503681A (en) * | 2020-11-30 | 2021-03-16 | 重庆工程职业技术学院 | Intelligent fresh air system |
-
2017
- 2017-06-06 CN CN201720649670.5U patent/CN207335057U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111829128A (en) * | 2020-07-07 | 2020-10-27 | 重庆科技学院 | Fresh air system with sterilization and disinfection functions |
CN112503681A (en) * | 2020-11-30 | 2021-03-16 | 重庆工程职业技术学院 | Intelligent fresh air system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105953352A (en) | Total heat exchanger, control device, control method and air-conditioning system | |
CN107246664A (en) | A kind of full heat removes haze fresh air all-in-one | |
CN207335057U (en) | A kind of double filtration fresh air system | |
CN104896694A (en) | Fresh air-and-indoor air purification regulating system | |
CN207335084U (en) | A kind of automatically cleaning fresh air system | |
CN206222602U (en) | A kind of intelligent aeration case | |
CN104613565A (en) | Multi-filtration type fresh air treatment equipment | |
CN207335058U (en) | A kind of internal-external double circulation fresh air system | |
CN206222505U (en) | Cabinet type new blower fan | |
CN203837196U (en) | Fresh air filtering system | |
CN206669892U (en) | A kind of independent Two-way Cycle air cleaning unit | |
CN206488364U (en) | A kind of new blower fan of console mode direct sending wind | |
CN207073916U (en) | A kind of press filtration VMC | |
CN204478342U (en) | A kind of high-efficiency and energy-saving type fresh-air handling unit | |
CN204786769U (en) | System for energy -conserving new trend PM2. 5 integration air condition | |
CN207179835U (en) | A kind of full heat removes haze fresh air all-in-one | |
CN106352410A (en) | Air conditioning system | |
CN205957389U (en) | Ion purifier | |
CN206257750U (en) | Dehumidify net oxygen system | |
CN205536365U (en) | New fan of control by temperature change formula heat transfer | |
CN206430263U (en) | A kind of New-air purifying system with air conditioner dehumidification function | |
CN202133047U (en) | Novel full-heat recovery type fan set | |
CN201973840U (en) | Fresh air ventilator | |
CN205383744U (en) | Wheel style fresh air ventilator | |
CN205227671U (en) | New fan of two -way pipeline |
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: 20180508 Termination date: 20180606 |
|
CF01 | Termination of patent right due to non-payment of annual fee |