CN106839240A - A kind of operating room interval combinations formula air cleaning system - Google Patents
A kind of operating room interval combinations formula air cleaning system Download PDFInfo
- Publication number
- CN106839240A CN106839240A CN201710052861.8A CN201710052861A CN106839240A CN 106839240 A CN106839240 A CN 106839240A CN 201710052861 A CN201710052861 A CN 201710052861A CN 106839240 A CN106839240 A CN 106839240A
- Authority
- CN
- China
- Prior art keywords
- air
- operating room
- cleaning system
- combinations formula
- air cleaning
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
- F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Ventilation (AREA)
Abstract
The invention discloses the interval modular air cleaning system of one kind operation, with reference to clean interval purification of air such as hospital operating room, ICU, operation cleaning auxiliary room areas, it is integrated with the functions such as new return air cleaning, circulation conveying, anti-cross infection, energy-conservation, fire prevention, system engineering save space, reducing energy consumption, the different requirements in each clean area can be met, be suitable to the application for the treatment of purpose.
Description
Technical field
The invention belongs to medical science cleaning field, more particularly to a kind of interval modular air cleaning system of operation.
Background technology
In recent years, with the development of medical science, various new materials, new technology, new apparatus, particularly various invasion and attack
Property operation, application of the implantable material in clinical operation also more and more extensively, hospital operating room to IAQ requirement
Very high, operating room is also called toilet, refers to the particulate in air, pernicious gas, bacterium etc. in the range of certain space
Pollutant is reduced to below set quota, and by the control such as indoor temperature, humidity, cleanliness factor, room pressure in certain model
In enclosing, to reduce the risk of hospital infection, the GB of reference at this stage is《Standard for daylighting design of industrial enterprises
(GB50333-2013)》.Present large hospital, its clean operating room is all multiple, and even tens is up to a hundred, and every
Individual operating room must all install air cleaning system, and independent air cleaning system is installed if each operating room, and this is not
Only there are enough spaces to building requirement, can also greatly increase installation construction cost, existing technology is large-scale using one
Purification of air unit to multiple operating rooms（Between ten thousand grades of operating rooms most three）Air-supply, engineering cost and taking up room all subtracted
It is few, but system is more thick spacious, it is impossible to personalized control is realized, once purification of air unit starts, will be blown to each operating room,
Uniform ultra-purify air is conveyed, can not be distinguished and be adjusted according to the requirement of surgical operation different zones and prepare cleaning
Air, causes unnecessary energy waste, and one activated, purification of air unit just always in high-power running, load weight,
Unit work consumptiom is excessive, there is certain potential safety hazard.
The content of the invention
It is an object of the invention to：Overcome the above not enough, there is provided a kind of operating room interval combinations formula air cleaning system, fit
In the application of personalized medicine purpose.
To achieve the above object, the technical scheme is that：A kind of operating room interval combinations formula air cleaning system, be
With reference to the interval purification of air of cleaning such as hospital operating room, ICU, operation cleaning auxiliary room area, including new return air cleaning-sterilizing mistake
Filter part, circulation conveying part, anti-cross infection, economized portion and fire prevention control.The new return air cleaning part refers to by purifying
Air circulation unit is completed：Including the separation of fast and stable humiture, particulate and noxious pollutant, Electrostatic Control.Purify air
Cycle Unit system end is provided with efficient air port, 95% dust, bacterium etc. in junior middle school of unit elder generation effect treatment fresh air air, again finally
The further clean treatment in efficient air port configured by system end.Unit respectively with fresh air blast pipe, ajutage and backwind tube
It is connected, purifying fresh air unit sets multiple gears, and number is consistent between numbers of gear steps and operating room.The circulation conveying part includes
Fresh air air intake, air-supply, return air, air draft, return air and fresh air mixture and air quantity are adjusted, and are installed successively by airflow direction on air-supply pipeline
There are quantitative adjusting valve and electric closed valve, exhaust pipeline is provided with check-valves and electric closed valve.The anti-cross infection is to adopt
With full air-supply, full air draft, the air purification systems without return air.The economized portion includes air-flow regulation, closing, switching, return air
Mix with fresh air, air draft and fresh air energy exchange, including：The operating room do not performed the operation does not convey purify air；Hand
Art room return air switches to substandard clean area；Part return air is mixed into redistribution with fresh air to recycle；Discharge the energy of air
Amount recycling.
Further, muffler and 70 DEG C of fire resisting dampers are sequentially installed with by airflow direction on all air pipe lines, it is net to reduce
Change noise when air unit works, it is ensured that surgical environments peace and quiet are noiseless, fire preventing hidden danger, increase security performance.
Further, quantitative adjusting valve and electric closed valve, exhaust duct are sequentially installed with by airflow direction on air-supply pipeline
Road is provided with check-valves and electric closed valve, and quantitative adjusting valve can as needed adjust air-flow size, and check-valves can prevent air draft
Backflow.
Further, operating room sets return air inlet and exhaust outlet under air supply plenum chamber, operating room, it is ensured that whole operating room
Pressure it is constant.
It is preferred that, operating room, ICU are respectively equipped with humidity sensor group and temperature sensor group, with fast and stable and regulation temperature
Humidity.The various instrument and equipments of operating room, ICU, lamp can produce influence to temperature and humidity, and when room humidity is more than 60%
Wait, the speed of bacterial reproduction will greatly speed up.
As a result of such scheme, the beneficial effects of the present invention are：
1. integrated system, meets the different requirements in each clean area；
2. personalized regulation and control, it is to avoid waste；
3. save space, reducing energy consumption.
Brief description of the drawings
Fig. 1 is the structural representation of many operating room air cleaning systems of the invention.
Reference：1- purification air-conditioning units, 2- Fresh air handling units, 21- fresh air quantitative adjusting valves, 22- fresh air blast pipes,
23- fresh air electric closed valves, 3- air-supply pipelines, 31- air-supply quantitative adjusting valves, 32- air-supply electric closed valves, 4- air return pipelines,
41- return air electric closed valves, 5- operating rooms, 51- air supply plenum chambers, return air inlet under 52- operating rooms, 53- exhaust outlets, 6- exhaust ducts
Road, 61- exhaust blowers, 62- air draft volume dampers, 63- exhaust check valves, 7- mufflers, 8- fire resisting dampers.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment：Many operating room air cleaning systems
With reference to Fig. 1, including purification air-conditioning unit 1, Fresh air handling units 2, air-supply pipeline 3, air return pipeline 4, operating room 5, exhaust pipeline
6, the Fresh air handling units 2 are connected by fresh air blast pipe 22 with purification air-conditioning unit 1, purification air-conditioning unit 1 through blow pipeline 3 with
Operating room 5 is connected, and at least provided between two, operating room 5 is respectively equipped with exhaust pipeline 6 and air return pipeline 4, return air to the operating room 5
Pipeline 4 is connected with purification air-conditioning unit 1, exhaust pipeline 6 and atmosphere, and the purification air-conditioning unit 1 sets multiple gears, shelves
Number is consistent between bit quantity and operating room 5.
In fresh air blast pipe described in the present embodiment 22 fresh air quantitative adjusting valve 21 and new is sequentially installed with by airflow direction
Wind electric closed valve 23.
In air-supply pipeline 3 described in the present embodiment air-supply quantitative adjusting valve 31 and air-supply electricity are sequentially installed with by airflow direction
Dynamic airtight valve 32.
Return air electric closed valve 41 is mounted on air return pipeline 4 described in the present embodiment.
In exhaust pipeline 6 described in the present embodiment air draft volume damper 62, exhaust blower is sequentially installed with by airflow direction
61 and exhaust check valve 63.
Operating room 5 described in the present embodiment is provided with return air inlet 52 and exhaust outlet 53 under air supply plenum chamber 51, operating room, described
Air supply plenum chamber 51 is connected with air-supply pipeline 3, and return air inlet 52 is connected with air return pipeline 4 under operating room, exhaust outlet 53 and exhaust duct
Road 6 connects.
Air-supply pipeline 3 described in the present embodiment and air return pipeline 4 are respectively equipped with muffler 7 at purification air-conditioning unit 1.
Air-supply pipeline 3 described in the present embodiment and air return pipeline 4 are respectively equipped with fire resisting damper 8 at purification air-conditioning unit 1.
The ceiling temperature of fire resisting damper 8 described in the present embodiment is 70 DEG C.
Fresh air handling units 2 provide fresh air by fresh air blast pipe 22 to purification air-conditioning unit 1, and fresh air is by purification air-conditioning unit
Operating room 5 is transported to by air-supply pipeline 3 after 1 purification.
Before startup, fresh air electric closed valve 23, air-supply electric closed valve 32, return air electric closed valve 41 are general all in pass
Closed state, during work, when only one of which operating room 5 is performed the operation, purification air-conditioning unit 1 is opened and is adjusted to one grade, does hand
The fresh air electric closed valve 23 on fresh air blast pipe 22 on the operating room 5 of art, the return air electric closed valve 41 on air return pipeline 4
Opened with the air-supply electric closed valve 32 on air-supply pipeline 3；When there is two operating rooms 5 to be performed the operation, purification air-conditioning unit 1
Two grades are opened and are adjusted to, the fresh air electric closed valve 23, air return pipeline on the fresh air blast pipe 22 of two for performing an operation operating room 5
Return air electric closed valve 41 on 4 is opened with the air-supply electric closed valve 32 of air-supply pipeline 3；Carried out when there are three operating rooms 5
During operation, purification air-conditioning unit 1 is opened and is adjusted to third gear, fresh air electric closed valve 23, air-supply electric closed valve 32, return air electricity
Dynamic airtight valve 41 is opened；After the completion of a certain operation of operating room 5, corresponding fresh air electric closed valve 23, air-supply are electronic
Airtight valve 32, return air electric closed valve 41 are closed, and the gear regulator of purification air-conditioning unit 1 adjusts back one grade；Three operating rooms 5 are complete
Into Post operation, fresh air electric closed valve 23, air-supply electric closed valve 32, return air electric closed valve 41 are turned off, purification air-conditioning machine
Group 1 is also switched off.
When a fire, the fire resisting damper 8 on all pipelines is automatically switched off.
Claims (9)
1. a kind of operating room interval combinations formula air cleaning system, it is characterized in that：With reference to hospital operating room, ICU, operation cleaning
The interval purification of air of cleaning such as auxiliary room area, including new return air cleaning part, circulation conveying part, anti-cross infection, energy-conservation
Part and fireproofing controller.
2. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：Described new time
Wind cleaning part refers to and is completed by purify air Cycle Unit：Separated including fast and stable humiture, particulate and noxious pollutant,
Electrostatic Control；The purify air Cycle Unit system end is provided with efficient air port, unit respectively with fresh air blast pipe, ajutage
It is connected with backwind tube, purifying fresh air unit sets multiple gears, and number is consistent between numbers of gear steps and operating room.
3. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：The circulation
Transport portion includes that fresh air air intake, air-supply, return air, air draft, return air and fresh air mixture and air quantity are adjusted.
4. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：The anti-friendship
Fork infection is to send full row, the air purification systems without return air using complete.
5. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：The energy-conservation
Part include air-flow regulation, close, switching, return air mix with fresh air, air draft and fresh air energy exchange.
6. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：All airducts
On road muffler and 70 DEG C of fire resisting dampers are sequentially installed with by airflow direction.
7. a kind of operating room interval combinations formula air cleaning system according to claim 1, it is characterised in that：Operating room,
ICU is respectively equipped with humidity sensor group and temperature sensor group.
8. a kind of operating room interval combinations formula air cleaning system according to claim 3, it is characterised in that：Air-supply pipeline
On be sequentially installed with quantitative adjusting valve and electric closed valve by airflow direction.
9. a kind of operating room interval combinations formula air cleaning system according to claim 3, it is characterised in that：Exhaust pipeline
Check-valves and electric closed valve are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052861.8A CN106839240A (en) | 2017-01-24 | 2017-01-24 | A kind of operating room interval combinations formula air cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052861.8A CN106839240A (en) | 2017-01-24 | 2017-01-24 | A kind of operating room interval combinations formula air cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106839240A true CN106839240A (en) | 2017-06-13 |
Family
ID=59120296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052861.8A Pending CN106839240A (en) | 2017-01-24 | 2017-01-24 | A kind of operating room interval combinations formula air cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106839240A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019878A (en) * | 2017-12-29 | 2018-05-11 | 浙江佩洁尔医疗科技有限公司 | A kind of operating room Multifunctional environment control system |
| CN108168015A (en) * | 2018-01-16 | 2018-06-15 | 上海市肺科医院 | Logical storehouse blending operating room |
| CN110030640A (en) * | 2018-01-12 | 2019-07-19 | 沃维克股份有限公司 | System and air purifier for air cleaning in room |
| CN110701692A (en) * | 2019-10-23 | 2020-01-17 | 同济大学 | Air conditioning unit for large-bay operating room and control method thereof |
| CN111811079A (en) * | 2020-07-24 | 2020-10-23 | 深圳市中深装建设集团有限公司 | Combined air cleaning system for operating room |
| CN117628600A (en) * | 2024-01-25 | 2024-03-01 | 江苏达实久信医疗科技有限公司 | Air purification and circulation equipment for clean operating room |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156946A (en) * | 1986-12-19 | 1988-06-30 | Matsushita Seiko Co Ltd | Air conditioner |
| CN101922766A (en) * | 2009-12-31 | 2010-12-22 | 周云正 | Central air conditioner for air sterilization and purification |
| CN201926054U (en) * | 2011-02-17 | 2011-08-10 | 西安易盟电子工程有限公司 | Medical and industrial air purifying system |
| CN202885125U (en) * | 2012-09-17 | 2013-04-17 | 武汉华康世纪洁净室技术工程有限公司 | Air purification system used for a plurality of operation rooms |
| CN204084679U (en) * | 2014-09-25 | 2015-01-07 | 武汉茂锋医疗净化工程有限公司 | A kind of air conditioning and cleaning system for positive/negative-pressure operating room |
| WO2016021150A1 (en) * | 2014-08-04 | 2016-02-11 | パナソニックＩｐマネジメント株式会社 | Air quality monitoring device and air quality monitoring system |
-
2017
- 2017-01-24 CN CN201710052861.8A patent/CN106839240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156946A (en) * | 1986-12-19 | 1988-06-30 | Matsushita Seiko Co Ltd | Air conditioner |
| CN101922766A (en) * | 2009-12-31 | 2010-12-22 | 周云正 | Central air conditioner for air sterilization and purification |
| CN201926054U (en) * | 2011-02-17 | 2011-08-10 | 西安易盟电子工程有限公司 | Medical and industrial air purifying system |
| CN202885125U (en) * | 2012-09-17 | 2013-04-17 | 武汉华康世纪洁净室技术工程有限公司 | Air purification system used for a plurality of operation rooms |
| WO2016021150A1 (en) * | 2014-08-04 | 2016-02-11 | パナソニックＩｐマネジメント株式会社 | Air quality monitoring device and air quality monitoring system |
| CN204084679U (en) * | 2014-09-25 | 2015-01-07 | 武汉茂锋医疗净化工程有限公司 | A kind of air conditioning and cleaning system for positive/negative-pressure operating room |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019878A (en) * | 2017-12-29 | 2018-05-11 | 浙江佩洁尔医疗科技有限公司 | A kind of operating room Multifunctional environment control system |
| CN110030640A (en) * | 2018-01-12 | 2019-07-19 | 沃维克股份有限公司 | System and air purifier for air cleaning in room |
| CN108168015A (en) * | 2018-01-16 | 2018-06-15 | 上海市肺科医院 | Logical storehouse blending operating room |
| CN108168015B (en) * | 2018-01-16 | 2024-05-07 | 上海市安装工程集团有限公司 | Through-warehouse blending operating room |
| CN110701692A (en) * | 2019-10-23 | 2020-01-17 | 同济大学 | Air conditioning unit for large-bay operating room and control method thereof |
| CN111811079A (en) * | 2020-07-24 | 2020-10-23 | 深圳市中深装建设集团有限公司 | Combined air cleaning system for operating room |
| CN117628600A (en) * | 2024-01-25 | 2024-03-01 | 江苏达实久信医疗科技有限公司 | Air purification and circulation equipment for clean operating room |
| CN117628600B (en) * | 2024-01-25 | 2024-03-26 | 江苏达实久信医疗科技有限公司 | Air purification and circulation equipment for clean operating room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106839240A (en) | A kind of operating room interval combinations formula air cleaning system | |
| CN108019855B (en) | Fully-decoupled purifying air-conditioning system | |
| CN105135566B (en) | A kind of pollutant partitioning system and its application method based on air guided flowing principle | |
| CN2896095Y (en) | Indoor air comprehensive treatment device | |
| CN103807928A (en) | Wall-mounted ventilation purifier | |
| CN103644614A (en) | Wall-mounted fresh air processor | |
| CN103940010A (en) | Air purification system for indoor air ventilation and purification | |
| CN101963386A (en) | Ground air supplying air conditioning line device and installation method thereof | |
| CN200952797Y (en) | Ventilating purification fan with regulating valve | |
| CN204787019U (en) | Ventilator | |
| CN206786983U (en) | One kind oxygen VMC | |
| CN206709306U (en) | A kind of environmentally friendly VMC of effectively purified treatment PM10, PM2.5 | |
| CN101457966A (en) | Household fresh air scavenger system with multiple duct supercharging device and the supercharging device | |
| CN203068684U (en) | Disinfecting and purifying device of central air-conditioner | |
| CN202885125U (en) | Air purification system used for a plurality of operation rooms | |
| CN110360702A (en) | A kind of multifunctional novel blower | |
| CN206514469U (en) | One drags many operating room anti-cross infection air circulation systems | |
| CN103644613A (en) | Wall-mounted fresh air fan | |
| CN206944371U (en) | Medical air cleaning system for multiple operating rooms | |
| CN206514436U (en) | One drags many operating room air cleaning, energy-saving systems | |
| CN200943915Y (en) | Household air venting system capable of promoting indoor air quality | |
| CN203823908U (en) | System with air supply and return pipeline shared by fresh air purification system and dehumidification system | |
| CN208458189U (en) | The vertical parallel fresh air system of teaching building | |
| CN206803420U (en) | Superclean Lab purifying air-feeding air return system | |
| CN203704199U (en) | Fresh air full heat exchange purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |