CN208108355U - Confined space central air-conditioning return air inlet air cleaning facility - Google Patents
Confined space central air-conditioning return air inlet air cleaning facility Download PDFInfo
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- CN208108355U CN208108355U CN201820566197.9U CN201820566197U CN208108355U CN 208108355 U CN208108355 U CN 208108355U CN 201820566197 U CN201820566197 U CN 201820566197U CN 208108355 U CN208108355 U CN 208108355U
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Abstract
The utility model discloses a kind of confined space central air-conditioning return air inlet air cleaning facilities, including air port variable diameter frame, fuselage, primary efficient filter screen, Electrostatic Absorption module, front apron；Air port variable diameter frame is used to fuselage being connected to Central air-conditioning unit return air inlet；Fuselage is sequentially connected primary efficient filter screen, Electrostatic Absorption module, front apron from internal layer to outer layer；Electrostatic Absorption module includes shell and the multiple electrodes plate along shell from the setting of direction front to back；Multiple electrodes plate is parallel；Wherein, the front end of shell is provided with air inlet, and its rear end is provided with gas outlet；Plane where electrode plate is parallel with the flow direction of air in shell.Confined space provided by the utility model central air-conditioning return air inlet air cleaning facility, with reasonable in design, all many-sided technical advantages such as resistance is small, high load, purifying rate height.
Description
Technical field
The utility model relates to air purifier equipment technology fields more particularly to a kind of confined space to be recalled to central hollow
Air port air cleaning facility.
Background technique
In large vessel, internal cabin is provided with many closed operating rooms, and this closed operating room is also usually pacified
Environment temperature adjustment is carried out equipped with central air-conditioning, but in order to improve its closed indoor air environment of work, the closed operating room
Often it is mounted with air cleaning facility；
Currently, the cleaning module that above-mentioned air clearing product mainly uses is old-fashioned HEPA net clean unit, but by
It is all mounted in some position in seal operation in conventional air cleaning equipment, does not have any pass with Central air-conditioning unit
System, independent operating and partial air are discharged by air-exhausting duct, and then Central air-conditioning unit is very likely again by this dirt
Air sucking pollutes；Meanwhile such clean unit resistance itself is big, the air quantity of high noise, receiving is small, be easy to cause secondary
Pollution, needs the clean unit for periodically spending more to renew.
In addition, its inner space of the closed work of ship is very limited, however this conventional air purification product itself
Volume is very big, installs for console mode, very occupancy use space.
To sum up, how to overcome the above-mentioned technological deficiency of traditional technology is that those skilled in the art's technology urgently to be solved is asked
Topic.
Utility model content
The purpose of this utility model is to provide a kind of confined space central air-conditioning return air inlet air cleaning facilities, with solution
The certainly above problem.
In order to achieve the above object, the technical solution of the utility model is realized in：
The utility model additionally provides a kind of confined space central air-conditioning return air inlet air cleaning facility, including air port becomes
Diameter frame, fuselage, primary efficient filter screen, Electrostatic Absorption module, front apron；
Wherein, the air port variable diameter frame is used to the fuselage being connected to Central air-conditioning unit return air inlet；The fuselage
The primary efficient filter screen, the Electrostatic Absorption module, the front apron are sequentially connected from internal layer to outer layer；
The Electrostatic Absorption module includes shell and the multiple electrodes plate along the shell from the setting of direction front to back；It is more
A electrode plate is parallel；Wherein, the front end of the shell is provided with air inlet, and its rear end is provided with gas outlet；The electricity
Plane where pole plate is parallel with the flow direction of air in the shell.
Preferably, as an embodiment；The internal layer of the air port variable diameter frame is additionally provided with sealing element, the sealing
Part is for sealing the Central air-conditioning unit return air inlet；The sealing element is sealing ring.
Preferably, as an embodiment；The primary efficient filter screen includes two layers of stainless steel screen frame and is arranged in institute
State the filter screen between two layers of stainless steel screen frame.
Preferably, as an embodiment；The front end of the front apron is additionally provided with front apron fixed screw；It is described
Front apron fixed screw is used to the front apron being fixedly connected on the fuselage.
Preferably, as an embodiment；Control circuit board is additionally provided on the surface of the front apron；The control
Circuit board processed its be electrically connected with the electrode plate of the Electrostatic Absorption module.
Preferably, as an embodiment；Confined space central air-conditioning return air inlet air cleaning facility
Initial resistance 35, whole resistance 60.
Preferably, as an embodiment；Spacing > between the two neighboring electrode plate of the Electrostatic Absorption module
5mm, pole plate resistance < 5Pa；The resistance < 30Pa of the primary efficient filter screen.
Preferably, as an embodiment；The single collection dust quantity of the Electrostatic Absorption module is at least 600g.
Preferably, as an embodiment；The fuselage uses 1.5MM thickness steel plate sheet-metal formed.
Preferably, as an embodiment；Shell in the Electrostatic Absorption modular structure is specially outside aluminium alloy
Shell.
Compared with prior art, it is the advantages of the utility model embodiment：
A kind of confined space central air-conditioning return air inlet air cleaning facility provided by the utility model is analyzed above-mentioned closed
Known to the primary structure of space central air-conditioning return air inlet air cleaning facility：Above-mentioned confined space central air-conditioning return air inlet sky
Gas cleaning equipment is mainly made of structures such as air port variable diameter frame, fuselage, primary efficient filter screen, Electrostatic Absorption module, front aprons；
Wherein, the air port variable diameter frame is used to the fuselage being connected to Central air-conditioning unit return air inlet；The fuselage from internal layer extremely
Outer layer is sequentially connected the primary efficient filter screen, the Electrostatic Absorption module, the front apron；The Electrostatic Absorption module includes outer
Shell and the multiple electrodes plate being arranged along the shell from direction front to back；Multiple electrode plates are parallel；Wherein, described outer
The front end of shell is provided with air inlet, and its rear end is provided with gas outlet；Air in plane where the electrode plate and the shell
Flow direction is parallel.
In the specific use process, when operation of air conditioner, air draught cabin outside confined space by external linkage (or
Claim connection) ventilation shaft and sound attenuator flow in cabin, in the process, air can pass through Central air-conditioning unit return air
Mouthful, confined space central air-conditioning return air inlet air cleaning facility is installed herein, and then makes by Central air-conditioning unit return air
Mouthful air enter confined space and purified with central air-conditioning return air inlet air cleaning facility, to reach to entering the room
The effect that is purified of air, flow to air-conditioner set after air purification and be sent into each cabin, to realize one big
The process that air in closed space is flowed and evolved.When primary efficient filter screen carries out first time primary filter, primary filtration network can be with
Stop from confined space central air-conditioning return air inlet enter doping air in impurity (such as：Hair etc.), then air enters
Electrostatic Absorption module realizes that (its specific structure design, air pass through resistance very little, it is ensured that air for high-efficient purification processing
Big ventilation quantity quickly through and efficient electrostatic precipitation).
A kind of confined space central air-conditioning return air inlet air cleaning facility provided by the utility model, structure design are closed
Reason, while it also has all many-sided technical advantages such as small resistance, high load, purifying rate height.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the vertical of the confined space central air-conditioning return air inlet air cleaning facility that the utility model embodiment two provides
Body surface structure schematic diagram；
Fig. 2 is the master for the confined space central air-conditioning return air inlet air cleaning facility that the utility model embodiment two provides
Depending on structural schematic diagram；
Fig. 3 is that the confined space that the utility model embodiment two of Fig. 2 provides is set with central air-conditioning return air inlet air purification
Standby overlooking structure diagram；
Fig. 4 is that the confined space that the utility model embodiment two of Fig. 2 provides is set with central air-conditioning return air inlet air purification
Standby side structure schematic view；
Fig. 5 is that the confined space central air-conditioning return air inlet air cleaning facility that the utility model embodiment two provides is whole
Decomposition texture schematic diagram；
Fig. 6 is the confined space central air-conditioning return air inlet air cleaning facility structure that the utility model embodiment two provides
In Electrostatic Absorption module purified treatment effect diagram.
Label：The air port 1- variable diameter frame；2- fuselage；3- primary efficient filter screen；4- Electrostatic Absorption module；5- front apron；
6- shell；7- electrode plate；8- air inlet；The gas outlet 9-；10- front apron fixed screw；11- control circuit board.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that the word of the orientation or positional relationship of certain instructions, only
It is the utility model and simplified description for ease of description, rather than the device or element of indication or suggestion meaning must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that " connection " shall be understood in a broad sense, for example, it may be fixed
Connection, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly
It is connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment one
The utility model embodiment one provides a kind of confined space central air-conditioning return air inlet air cleaning facility, including
Air port variable diameter frame, fuselage, primary efficient filter screen, Electrostatic Absorption module, front apron；Wherein, the air port variable diameter frame will be for will be described
Fuselage is connected on Central air-conditioning unit return air inlet；The fuselage is sequentially connected the primary efficient filter screen, institute from internal layer to outer layer
State Electrostatic Absorption module, the front apron；The Electrostatic Absorption module include shell and along the shell from direction front to back
The multiple electrodes plate of setting；Multiple electrode plates are parallel；Wherein, the front end of the shell is provided with air inlet, its rear end
It is provided with gas outlet；Plane where the electrode plate is parallel with the flow direction of air in the shell.
Embodiment two
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model embodiment two provides a kind of confined space center
Return air inlet for air-conditioner air cleaning facility, including air port variable diameter frame 1, fuselage 2, primary efficient filter screen 3, Electrostatic Absorption module 4, front apron
5；
Wherein, the air port variable diameter frame 1 is used to the fuselage 2 being connected to Central air-conditioning unit return air inlet；The machine
Body 2 is sequentially connected the primary efficient filter screen 3, the Electrostatic Absorption module 4, the front apron 5 from internal layer to outer layer；
The Electrostatic Absorption module 4 includes shell 6 and the multiple electrodes plate along the shell from the setting of direction front to back
7；Multiple electrode plates 7 are parallel；Wherein, the front end of the shell 6 is provided with air inlet 8 (i.e. foul atmosphere air inlet),
Its rear end is provided with gas outlet 9 (i.e. air outlet)；The flow direction of air in the 7 place plane of electrode plate and the shell 6
In parallel.
It should be noted that above-mentioned Electrostatic Absorption module is to carry out a wide range of, the purification of big ventilatory capacity by electrostatic means
Processing；The multiple rows of parallel electrode plate 7 of setting forms dust collecting electrode in each power-feed section (electric field).The ionization of above-mentioned Electrostatic Absorption module
Higher with adsorption efficiency, adsorption effect is significant.Secondly as improving air circulation at the air intake close to shell 6
Property, it reduces windage and wind makes an uproar (as shown in Figure 6).
Based on the above embodiment on basis, further, the internal layer of the air port variable diameter frame 1 is additionally provided with sealing element
(not shown), the sealing element is for sealing the Central air-conditioning unit return air inlet；The sealing element is sealing ring.It needs
Illustrate, the internal layer of above-mentioned air port variable diameter frame is additionally provided with sealing element, may be implemented to use confined space by the sealing element
Sealed connection between central air-conditioning return air inlet air cleaning facility and Central air-conditioning unit return air inlet guarantees that air will not pass through
Central air-conditioning unit return air inlet is leaked.
Based on the above embodiment on basis, further, the primary efficient filter screen 3 includes two layers of stainless steel screen frame and sets
Set the filter screen (stainless steel structure) between two layers of stainless steel screen frame.It should be noted that above-mentioned primary efficient filter screen its
It is mainly made of stainless steel filter screen, air drag < 30Pa, the use of booster fan when avoiding improvement and installation reduces transformation
Cost.
Based on the above embodiment on basis, further, the front end of the front apron 5 is additionally provided with the fixed spiral shell of front apron
Silk 10；The front apron fixed screw 10 is used to the front apron 5 being fixedly connected on the fuselage 2.Front apron fixes spiral shell
Silk is detachably attached on front apron and fuselage, can be by confined space central air-conditioning return air inlet air cleaning facility structure
It is fixedly connected, guarantees its integrally-built reliability and stability.
Based on the above embodiment on basis, further, control circuit board is additionally provided on the surface of the front apron 5
11；The control circuit board 11 its be electrically connected with the electrode plate of the Electrostatic Absorption module 4.
Based on the above embodiment on basis, further, confined space central air-conditioning return air inlet air purification
The initial resistance 35 of equipment, whole resistance 60.Spacing > 5mm, pole between the two neighboring electrode plate of the Electrostatic Absorption module
Plate resistance < 5Pa (i.e. air drag)；The resistance < 30Pa (i.e. air drag) of the primary efficient filter screen.The Electrostatic Absorption mould
The single collection dust quantity of block is at least 600g.
It should be noted that confined space is recalled to central hollow in the specific embodiment of the utility model embodiment two
Air port air cleaning facility can be used as the main air cleaning facility of naval vessel warehouse air, this equipment has resistance small, high energy conservation,
The features such as high load, single purifying rate is high, compact, whole body metal material, and stability is high, long service life.Confined space
It can be to 0.3-10 microns of particulate matter with the clean unit (i.e. Electrostatic Absorption module) of central air-conditioning return air inlet air cleaning facility
High efficiency filter is carried out, particulate matter and bacterial content in air is effectively reduced, greatly guarantees the air quality of use space,
Fabulous protects air-conditioning heat exchanger, fresh air system heat exchanger and air supply duct, from being blocked because of polluter,
Filter efficiency can reach 95% or more.Clean unit can whole water washing cycles use, avoid the maintenance cost that the later period is high.It is very aobvious
So, with central air-conditioning return air inlet air cleaning facility, it has very various technical advantages to confined space：1. resistance is small：Equipment
Initial resistance 35-end resistance 60, cleaning module use plate type electrostatic absorption principle, spacing > 5mm, resistance < 5Pa between pole plate,
Primary efficient filter screen resistance < 30Pa, the use of booster fan when avoiding improvement and installation, reduces improvement cost.2. high energy conservation：Equipment
Power consumption be 32W, the output of lowest power is realized while reaching high efficiency filter.3. high load：The single electrostatic of equipment
Adsorption module single integrates dust quantity as 600g, and complete equipment is optionally combined according to different air quantity, to realize that dust is negative greatly
The characteristics of load.4. purifying rate is high：Single purifying rate of the equipment in similar product is very high, purifying rate be respectively wind speed 1m/s its
Purifying rate is 99.6%；Wind speed 2m/s, purifying rate 99.5%；Wind speed 2.5m/s, purifying rate 98.4%；Wind speed 3m/
S, purifying rate 97.3%；Wind speed 4m/s, purifying rate 93.2%, purified air quality meet GB/T18883《Room
Interior air quality standard》.
Based on the above embodiment on basis, further, the fuselage uses 1.5MM thickness steel plate sheet-metal formed.Institute
Stating the shell in Electrostatic Absorption modular structure is specially aluminum alloy casing.
It should be noted that the material of fuselage is whole body metal in the specific embodiment of the utility model embodiment two
Material, fuselage use 1.5MM thickness steel plate sheet-metal formed, have hardness high；The features such as being unlikely to deform.Cleaning module material is
6061 series alloys materials, this material have corrosion resistance；Inoxidizability；Intensity is high；The features such as availability is good is guaranteeing to set
The long-time service life of the equipment also guaranteed while standby high efficiency operating condition.
Confined space provided by the embodiment of the utility model central air-conditioning return air inlet air cleaning facility is special needle
To the purification apparatus for ensureing that enclosed type space or marine air-conditioning system ventilation for cabin room mouth are developed.Equipment can be according to different envelopes
It closes space ventilator requirement and freely adjusts cleaning module specification and size, to meet different ventilation quantity requirements.Equipment can be to air
In particulate matter (0.3-10 microns) and bacterial content carry out high efficiency filter, filter efficiency can reach 95% or more.After purification
Air quality meet GB/T18883《Indoor Air Quality standards》.To protect in equipment or the cabin in enclosure space
Air-conditioning heat exchanger, fresh air system heat exchanger and air supply duct, from being blocked because of polluter；Ozone release is full
Sufficient GB/T18001-2015《Harmful substance release request in air purifier standard》.Clean unit safety meets
GB4706.1-2005《Household and similar applications security appliance General Requirement》, GB4706.45-2008《Household and similar applications
Security appliance particular/special requirement》；And can whole water washing cycles use, avoid the maintenance cost that the later period is high.
Confined space provided by the embodiment of the utility model has such as lower section with central air-conditioning return air inlet air cleaning facility
The technical advantage in face：
One, confined space provided by the embodiment of the utility model central air-conditioning return air inlet air cleaning facility, structure
It is more reasonable to design；In the conventional technology, there are no air cleaning facilities matched with Central air-conditioning unit in field peculiar to vessel.However,
Which solve above-mentioned technical problems with central air-conditioning return air inlet air cleaning facility for confined space provided by the utility model.It is above-mentioned
Confined space central air-conditioning return air inlet air cleaning facility, mainly by air port variable diameter frame, fuselage, primary efficient filter screen, electrostatic
The structures such as adsorption module, front apron are constituted；It will be apparent that above-mentioned air port variable diameter frame, fuselage, primary efficient filter screen, Electrostatic Absorption module,
Connection relationship and positional relationship between the specific structures such as front apron have reasonable layout designs；Therefore the utility model is real
The confined space central air-conditioning return air inlet air cleaning facility of example offer is applied, technical construction is more reasonable, and function more adds
Kind, practicability is also stronger.
Two, confined space provided by the embodiment of the utility model central air-conditioning return air inlet air cleaning facility, specific
In use process, when operation of air conditioner, the air draught cabin outside confined space passes through the ventilation of external linkage (or connection)
Pipeline and sound attenuator are flow in cabin, and in the process, air can be used confined space by Central air-conditioning unit return air inlet
Central air-conditioning return air inlet air cleaning facility is installed herein, and then makes to enter by the air of Central air-conditioning unit return air inlet close
It closes space to be purified with central air-conditioning return air inlet air cleaning facility, the air entered the room is purified to reach
It acts on, air-conditioner set is flow to after air purification and is sent into each cabin, to realize a big air in closed space flowing
And the process evolved.When primary efficient filter screen carries out first time primary filter, primary filtration network can stop to use from confined space
Central air-conditioning return air inlet enter doping air in impurity (such as：Hair etc.), then air enters the realization of Electrostatic Absorption module
(its specific structure design, air pass through resistance very little, it is ensured that the quick of the big ventilation quantity of air is led to for high-efficient purification processing
Cross and efficient electrostatic precipitation).
Three, confined space provided by the embodiment of the utility model central air-conditioning return air inlet air cleaning facility, structure
Design is reasonable, while it also has all many-sided technical advantages such as small resistance, high load, purifying rate height.
Based on above many significant technical advantages, confined space provided by the utility model central air-conditioning return air inlet sky
Gas cleaning equipment will bring good market prospects and economic benefit.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand：It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of confined space central air-conditioning return air inlet air cleaning facility, which is characterized in that including air port variable diameter frame, machine
Body, primary efficient filter screen, Electrostatic Absorption module, front apron；
Wherein, the air port variable diameter frame is used to the fuselage being connected to Central air-conditioning unit return air inlet；The fuselage is in
Layer to outer layer is sequentially connected the primary efficient filter screen, the Electrostatic Absorption module, the front apron；
The Electrostatic Absorption module includes shell and the multiple electrodes plate along the shell from the setting of direction front to back；Multiple institutes
It is parallel to state electrode plate；Wherein, the front end of the shell is provided with air inlet, and its rear end is provided with gas outlet；The electrode plate
Place plane is parallel with the flow direction of air in the shell.
2. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The internal layer of the air port variable diameter frame is additionally provided with sealing element, and the sealing element is for sealing the Central air-conditioning unit return air
Mouthful；The sealing element is sealing ring.
3. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The primary efficient filter screen includes two layers of stainless steel screen frame and the filter screen that is arranged between two layers of stainless steel screen frame.
4. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The front end of the front apron is additionally provided with front apron fixed screw；The front apron fixed screw is used for the front apron
It is fixedly connected on the fuselage.
5. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
Control circuit board is additionally provided on the surface of the front apron；The control circuit board its with the Electrostatic Absorption module
Electrode plate electrical connection.
6. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The initial resistance 35 of confined space central air-conditioning return air inlet air cleaning facility, whole resistance 60.
7. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
Spacing > 5mm between the two neighboring electrode plate of the Electrostatic Absorption module, pole plate resistance < 5Pa；It is described just to imitate
The resistance < 30Pa of strainer.
8. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The single collection dust quantity of the Electrostatic Absorption module is at least 600g.
9. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
The fuselage uses 1.5MM thickness steel plate sheet-metal formed.
10. confined space as described in claim 1 central air-conditioning return air inlet air cleaning facility, which is characterized in that
Shell in the Electrostatic Absorption modular structure is specially aluminum alloy casing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566197.9U CN208108355U (en) | 2018-04-19 | 2018-04-19 | Confined space central air-conditioning return air inlet air cleaning facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566197.9U CN208108355U (en) | 2018-04-19 | 2018-04-19 | Confined space central air-conditioning return air inlet air cleaning facility |
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| CN208108355U true CN208108355U (en) | 2018-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444002A (en) * | 2018-04-19 | 2018-08-24 | 中创意德（北京）科技发展有限公司 | Confined space central air-conditioning return air inlet air cleaning facility |
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2018
- 2018-04-19 CN CN201820566197.9U patent/CN208108355U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444002A (en) * | 2018-04-19 | 2018-08-24 | 中创意德（北京）科技发展有限公司 | Confined space central air-conditioning return air inlet air cleaning facility |
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Address after: 100020 Beijing city Chaoyang District Sirirath Tuo Fang Ying Building No. 2 layer 105 room 110 Patentee after: Friedrich Environmental Technology Development (Beijing) Co., Ltd. Address before: 100020 Beijing city Chaoyang District Sirirath Tuo Fang Ying Building No. 2 layer 105 room 110 Patentee before: Creative (Beijing) science and Technology Development Co Ltd |